Mortar disc integrated adsorption friction catalytic purifier and manufacturing method and application thereof
By designing an integrated adsorption-friction catalytic purifier with a mortar and disc, combined with permeation dosing and disc milling, the efficient extraction and purification of heavy metals and organic pollutants in waste incineration fly ash and contaminated soil is achieved. This solves the problems of low extraction efficiency, complex equipment, high reagent consumption, and high energy consumption in existing technologies, and realizes efficient and low-cost purification treatment.
Patent Information
- Application Number
- CN202511142026.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-15
- Publication Date
- 2025-11-04
AI Technical Summary
Existing technologies for treating fly ash from waste incineration and contaminated soil suffer from low heavy metal extraction efficiency, poor pollutant purification capacity, complex equipment, high reagent consumption, high energy consumption, and the need for further treatment of the extract, resulting in complex processes and high costs.
The system employs an integrated mortar and disc adsorption friction catalytic purifier, combining mechanical cracking, permeation dosing, and disc milling. Through mortar milling and filter friction catalytic adsorption purifier, heavy metals are extracted and organic pollutants are decomposed simultaneously, achieving simultaneous adsorption friction catalytic complex-breaking decomposition. The purification processor includes an integrated mortar and disc mill and a filter friction catalytic adsorption purifier. By utilizing the combination of permeation grinding pestle, mortar and disc milling disc, and filter friction catalytic adsorption purifier, efficient extraction and purification are achieved.
It improves the extraction efficiency of heavy metals and organic pollutants, reduces reagent usage and energy consumption, simplifies the process, reduces equipment complexity, improves purification capacity and extraction efficiency, and reduces costs.
Smart Images

Figure BDA0005549839140000201 
Figure BDA0005549839140000202 
Figure BDA0005549839140000211
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the field of environmental technology, and relates to a cup disk integrated adsorption friction catalytic purifier and its manufacturing method and application, in particular, application in harmful substance purification in waste incineration fly ash or soil remediation. BACKGROUND
[0002] Incineration method has become the mainstream method for treating household garbage due to its complete treatment and recycling of heat energy. However, a large amount of fly ash is generated during the incineration process, which contains soluble salts such as sodium, potassium, chlorine and sulfate, as well as heavy metals such as lead and cadmium, and toxic and harmful substances such as dioxin. Fly ash is a hazardous waste. The treatment and disposal of fly ash has become a key problem limiting waste incineration (Ma Y, Zheng R D, Zhou Z H, et al. Disposal technology and application bottleneck of household waste incineration fly ash [J]. Environmental Engineering, 2022, 40(05): 237-243.).
[0003] Soil pollution is directly related to human food safety. Soil contaminated by heavy metals and refractory organic matter is difficult to self-clean and needs to be treated before it can restore its function (Chen Y J, Zhang H H, Ma Z H, et al. Present situation and control measures of farmland soil pollution in China [J]. China Resources Comprehensive Utilization, 2025, 43(02): 139-142; Liu T, Yang L Q, Shi Y N, et al. Comprehensive analysis of site soil remediation technology in China [J / OL]. Ecological Journal, 1-19 [2025-04-12]).
[0004] Leaching and extraction purification is the most effective method for treating incineration fly ash and contaminated soil, which can effectively remove harmful substances such as heavy metals and recover useful components (Li B. Elution of heavy metals in fly ash and electrochemical recovery of heavy metals [D]. Zhejiang University, 2024; Tan X J, Xiang J J, Yin Y, et al. Research progress of combined enhanced leaching remediation technology for heavy metal contaminated soil [J]. Environmental Health Engineering, 2022, 30(04): 74-82; Jia Z Q. Leaching and remediation technology for heavy metal contaminated soil [J]. Shanxi Chemical Industry, 2024, 44(10): 228-229.). However, a part of harmful substances in fly ash generated by waste incineration are wrapped in the molten particles, and a large part of the pollutants in the contaminated soil are wrapped in the soil particles. The traditional leaching and extraction method cannot quickly and completely extract them.
[0005] Mechanochemistry is a technology that has attracted attention in recent years. It is used to treat solid waste such as waste incineration fly ash by coupling mechanical force and chemical reaction (Chen Ziliang. Mechanism of mechanical chemical method for degradation of dioxin in waste incineration fly ash and synergistic stabilization of heavy metals[D]. Zhejiang University, 2019.). Deng Yuequan et al. (2023103745481 A method for removing heavy metals in waste incineration fly ash by EDTA ball milling reaction) used a combination of chemicals and ball milling to remove heavy metals from waste incineration fly ash. Zhang Houhu et al. also used ball milling to treat and purify dioxins in fly ash (2023104554903 Treatment device for removing dioxins from municipal solid waste incineration fly ash using a ball mill). Zhou Feifei et al. (202410943538X A method and system for full resource utilization of municipal solid waste incineration fly ash) used a dioxin removal device, a screening and ball milling device, a water washing and dechlorination device, a sedimentation device, a solid-liquid separation device, a hydrothermal solidification brick making device, a heavy metal removal device, and an evaporation and freezing crystallization device to treat and purify fly ash. There are also reports of combining mechanochemistry with water washing and high-temperature treatment (Wang Wenxia et al., 2020115603990 A wet grinding and high-temperature treatment integrated treatment method for waste incineration fly ash; Zhang Ning et al., 2021109592739 A new dioxin removal system and method for waste incineration fly ash; 2023105731977 A washing agent and washing method for wet grinding and washing to remove heavy metals from waste incineration fly ash). However, these methods and equipment processes are very complex.
[0006] Mechanochemical method is also applied in the remediation of heavy metal and refractory organic matter contaminated soil(Zhang S H. Experimental study on the remediation of PCB77 contaminated soil by dielectric barrier discharge and planetary ball mill[D]. Zhejiang University, 2024.; Li X. Degradation of hexachlorobenzene in soil by mechanochemical method and its mechanism[D]. Southeast University, 2021.); Zhao L et al. (A kind of compound leaching agent and its remediation optimization method for heavy metal contaminated saline-alkali soil, application number 201910872687.0) discloses a kind of compound leaching agent and its remediation optimization method for heavy metal contaminated saline-alkali soil, the heavy metal complex contaminated soil is first dried naturally and ground to pass through a 10 mesh sieve, and the sieved soil sample is leached; Xiao Y L et al. (A heavy metal contaminated soil remediation equipment and its remediation process, application number 201510775253.0) uses a device with a crushing roller, a ball mill, a separation screen, a primary water washing tank, a linear vibrating screen, a mud buffer tank, a slurry pump, a centrifuge, a deep leaching tank, a belt filter press, and a secondary water washing tank. The contaminated soil is remediated by mechanical grinding, primary water washing, primary solid-liquid separation, deep leaching, secondary water washing, and secondary solid-liquid separation. Chen Q et al. (A method for remediation of cadmium contaminated soil by symbiotic leaching, application number 201711471283.8) uses a symbiotic leaching method to remediate cadmium contaminated soil. The high cadmium contaminated soil is mixed with water and zinc salt, crushed and ground to produce fine soil slurry. Then, the slurry is left to stand on a filter screen and filtered under pressure to separate cadmium ions from zinc salt. Alkaline solution is then added for filtration and separation. The zinc salt is reused with the filtrate to achieve the purpose of removing cadmium from the soil. Cui S et al. (A feeding and slurry making system for soil leaching remediation, application number 201710249334.6) uses a crushing and screening module, a feeding and slurry making module, and a leaching and particle size classification module to overcome the problem of screen clogging due to uneven particle size of the feed in existing technologies. It also solves the problem of matching the particle size of the leached soil with the equipment and the problem of secondary pollution during the pretreatment process of the contaminated soil. Zhong R B et al. (Device and method for ex situ chemical leaching remediation of heavy metal contaminated soil and reuse of washing liquid, application number 201610522057.7) uses dry drum screening, grinding by a grinding machine, and wet drum screening. After two-stage leaching reaction, the washing liquid is recovered and treated by a complex process including adjustment and neutralization, electrocoagulation, aeration oxidation tank, diatomite circulation clarification, and pH value adjustment tank to treat sites with high pollution concentration and high risk. Yi X Z et al. (A device for treating heavy metal contaminated soil and a treatment process thereof, application number 201610106879.7) discloses a device for treating heavy metal contaminated soil, which uses a rack, a feed hopper, a crushing roller, a ball mill, a separation screen, a primary water washing tank, a linear vibrating screen, a mud buffer tank, a slurry pump, a centrifuge, a deep leaching tank, a belt filter press, and a secondary water washing tank. The contaminated soil is remediated by mechanical grinding, primary water washing, primary solid-liquid separation, deep leaching, secondary water washing, and secondary solid-liquid separation.Xiao Pengfei et al. (Method for repairing DDTs contaminated soil by ultrasonic wave and surfactant, application number 201510252908.6) uses ultrasonic wave and surfactant to repair DDTs contaminated soil. The right holder Chen Zexin (A method for repairing heavy metal contaminated soil, application number: 2019101198506) discloses a new soil repair method: the soil cleared of impurities is put into the heavy metal contaminated soil repair device from the feed inlet, and at the same time the driving motor is started, the driving motor drives the rotating shaft to rotate, the rotating shaft drives the grinding block and the guide block to rotate, and then the vertical column drives the blade to rotate to preliminarily cut the soil, and the discharging rate is improved; and the soil crushing, screening and leaching are integrated, and the efficiency of repairing soil is improved. Zou Min (Zou Min, a leaching repair device for heavy metal contaminated soil, application number 201921032086.0) uses a grinding structure to realize the function of soil crushing.
[0007] These technologies, whether it is waste incineration fly ash treatment or contaminated soil repair, cracking, extraction and separation need to be completed in steps, and the process is complex. Moreover, the cracking is mostly mechanical treatment means with ball milling, which has high energy consumption. Even if other grinding and crushing technologies are used, they are only used for crushing materials. The treatment of heavy metals and organic pollutants is generally carried out separately, and the types of process and equipment are various, and the structure is complex; especially the extraction liquid extracted by using complexing agent, although it can improve the extraction rate, but the agent is directly added, and the consumption of the agent is large, and the volume of the extraction liquid is large; moreover, the heavy metals extracted are complexed with the complexing agent, which is difficult to recover and further process, and needs multiple steps such as breaking complex, separation, etc., and the process is complex, the subsequent processing is difficult, and the cost is high. SUMMARY
[0008] In order to solve the problems of low heavy metal extraction efficiency, poor pollutant purification ability, complex process equipment, further treatment of extraction liquid, large consumption of extraction agent and high energy consumption in waste incineration fly ash detoxification and purification treatment or contaminated soil repair, the present application provides a mortar disc integrated adsorption friction catalytic purifier and its manufacturing method and application, which combines mechanical cracking, mortar grinding, disc grinding and permeation dosing to maximize the cracking, extraction and purification ability, improve the use efficiency of the agent and reduce the energy consumption; the filter separation, friction catalysis and adsorption enrichment are combined to simultaneously break the complex and adsorb the heavy metals in the extraction liquid, remove the heavy metals and refractory organic pollutants in the waste incineration fly ash or soil, and recover the useful components.
[0009] The present application provides a mortar disc integrated adsorption friction catalytic purifier, which is a continuous cracking and extraction device for heavy metals wrapped in fly ash or soil particles, a mechanical and chemical extraction and decomposition device for organic pollutants, a synchronous adsorption friction catalysis device for breaking complex and decomposition adsorption deep purification treatment device, which comprises a mortar disc integrated grinder and a filter friction catalysis adsorption purifier:
[0010] The integrated mortar disc comprises a medicine-permeated grinding pestle, an upper grinding disc and a lower grinding disc; the medicine-permeated grinding pestle is a hollow columnar body with a circular head at the bottom, and the circular head is provided with medicine-permeated micropores; the side wall of the medicine-permeated grinding pestle is provided with a spiral descending pushing wing; the upper grinding disc is a flat cylindrical body with a circular plane at the bottom, which is a grinding surface; a circular pit is formed in the middle of the upper surface of the cylindrical body, which is a grinding hole, and an integrated collecting hopper is formed by extending upward around the inner surface of the grinding hole; the medicine-permeated grinding pestle is arranged in the collecting hopper, and the circular head of the medicine-permeated grinding pestle cooperates with the grinding hole of the upper grinding disc to form a grinding extraction area; the lower grinding disc is arranged below the upper grinding disc to form a grinding reaction area.
[0011] A filter friction catalytic adsorption purifier is arranged below the lower grinding disc; the filter friction catalytic adsorption purifier is internally provided with an upper adsorption friction catalytic disc, a friction catalytic driving disc, a lower adsorption friction catalytic disc and a supporting net from top to bottom; a rotating shaft is fixed at the center of the upper grinding disc of the integrated mortar disc, penetrates downward through the lower grinding disc and the upper adsorption friction catalytic disc, is flexibly combined with the central axis of the friction catalytic driving disc, and drives the lower grinding disc and the friction catalytic driving disc to rotate synchronously through the driving wheel disc arranged around the upper grinding disc of the integrated mortar disc.
[0012] As a preferred, the medicine-permeated micropores are a plurality of through holes penetrating the wall of the pestle and inclined outward from the cavity to the rotating direction of the grinding hole, which are arranged at the side wall and the bottom head of the lower part of the medicine-permeated grinding pestle, the hole diameter is 0.01mm-0.5mm, the inclination angle is 10-90 degrees with the radial direction, the upper part of the hollow cavity of the medicine-permeated grinding pestle is communicated with a medicine storage tank through a medicine inlet pipe provided with a medicine inlet valve and a pressure pump, a pressure gauge is arranged on the medicine-permeated grinding pestle to indicate the pressure in the cavity, the pressure is used to provide extraction liquid to the grinding extraction area between the circular head of the medicine-permeated grinding pestle and the grinding hole through the medicine-permeated micropores, the upper part of the medicine-permeated grinding pestle is fixed on an adjustable height cross beam, the cross beam is fixed on the base of the filter friction catalytic adsorption purifier through a support, and an elastic buffer with adjustable cross beam height is connected between the cross beam and the support to change the friction pressure between the pestle and the mortar and make the medicine-permeated grinding pestle have elastic buffering.
[0013] As preferred, the lower surface of the mortar disc is integrally formed with the upper surface of the grinding disc, and the grinding disc is provided with a grinding mortar, the bottom of the grinding mortar is coaxial with the grinding disc, the periphery of the grinding mortar is raised to form a collecting hopper, and the bottom of the grinding mortar is provided with a discharge port offset from the center of the mortar bottom, the lower end of the discharge port is open to the upper surface of the grinding disc to form a distribution groove gradually spreading in the opposite direction of rotation, the upper surface of the grinding disc is provided with a plurality of disc guiding ridges radiating outward from the center, and the ridges are deflected by 8-20 degrees in the opposite direction of rotation of the grinding disc; the center of the upper surface of the grinding disc is provided with a rotating shaft perpendicular to the upper surface of the grinding disc, and the grinding disc is provided with a driving wheel around the periphery, which is driven by a driving motor and a driving wheel engaged with the driving wheel to realize the rotation of the grinding disc along the rotating shaft.
[0014] As preferred, the lower surface of the mortar disc is integrally formed with the upper surface of the grinding disc, and the grinding disc is provided with a grinding mortar, the bottom of the grinding mortar is coaxial with the grinding disc, the periphery of the grinding mortar is raised to form a collecting hopper, and the bottom of the grinding mortar is provided with a discharge port offset from the center of the mortar bottom, the lower end of the discharge port is open to the upper surface of the grinding disc to form a distribution groove gradually spreading in the opposite direction of rotation, the upper surface of the grinding disc is provided with a plurality of disc guiding ridges radiating outward from the center, and the ridges are deflected by 8-20 degrees in the opposite direction of rotation of the grinding disc; the center of the upper surface of the grinding disc is provided with a rotating shaft perpendicular to the upper surface of the grinding disc, and the grinding disc is provided with a driving wheel around the periphery, which is driven by a driving motor and a driving wheel engaged with the driving wheel to realize the rotation of the grinding disc along the rotating shaft.
[0015] The filter friction catalytic adsorption purifier is a tank-shaped pressure-resistant container arranged below the lower disc mill disc, a filter ring plate for filtering is arranged on the outer circle of the lower disc mill surface of the lower disc mill disc, and the upper surface is not higher than the lower disc mill surface, a mud collecting groove is arranged on the outer circle of the filter ring plate, a mud discharging port is arranged on the outer circle of the mud collecting groove, a ring-shaped cavity is arranged above the filter friction catalytic adsorption purifier below the filter ring plate, a vacuum suction port is arranged on the upper part of the side wall of the cavity, and the vacuum suction port is communicated with a vacuum pump through a pipeline provided with a suction valve; an upper adsorption friction catalytic disc, a friction catalytic driving disc, a lower adsorption friction catalytic disc and a supporting net are arranged in the filter friction catalytic adsorption purifier from top to bottom; the upper adsorption friction catalytic disc has an upper adsorption friction catalytic disc through hole in the center, the lower end of a rotating shaft extends downward and is flexibly connected to the center of the friction catalytic driving disc through the upper adsorption friction catalytic disc through hole, the flexible connection is that the friction catalytic driving disc can rotate along the rotating shaft and move along the axial direction of the rotating shaft; the rotating shaft is perpendicular to the plane where the upper adsorption friction catalytic disc, the friction catalytic driving disc and the lower adsorption friction catalytic disc are located; a friction pressure adjusting knob is arranged on the wall of the lower part of the supporting net; a liquid discharging port is arranged at the lowest position of the tank-shaped container of the filter friction catalytic adsorption purifier, and the liquid discharging port is communicated with a collecting groove through a pipeline provided with a liquid discharging valve and a liquid discharging pump; an elution regenerant tank is arranged outside the filter friction catalytic adsorption purifier, and the elution regenerant tank is communicated with the filter friction catalytic adsorption purifier through a pipeline provided with an elution pump and an elution valve; a mud scraping knife and a laying device are arranged on the upper part of the filter ring plate, the mud scraping knife and the laying device can rotate with the mortar disc and the upper mill disc, and the height and working state are adjusted by adjusting the mud scraping knife adjusting knob through the adjusting rod.
[0016] Further, the permeated medicine grinding pestle is matched with the millstone, the gap gradually decreases from top to bottom, the width of the spiral material pushing wing of the permeated medicine grinding pestle also decreases, the outer edge of the material pushing wing is matched with the millstone wall, the upper disc mill surface and the lower disc mill surface are matched, the size of the gap between the lower end of the permeated medicine grinding pestle and the millstone and the size of the millstone pressure can be adjusted by adjusting the height of the cross beam through the elastic buffer, that is, the height of the permeated medicine grinding pestle is adjusted.
[0017] Further, the upper adsorption friction catalytic disc is a circular disc, and a plurality of receiving diffusion grooves radiating from the center to the circumference are uniformly arranged on the upper surface of the upper adsorption friction catalytic disc. The upper surface of the receiving diffusion groove gradually widens from the center to the circumference in the radial direction, and is deeper in the middle and shallower at the two ends. The receiving diffusion groove forms a circular-arc-shaped receiving diffusion groove front guide groove on the side of the upper grinding disc of the mortar disc integrated body in the direction of rotation of the upper grinding disc. The receiving diffusion groove front guide groove gradually deflects smoothly in the radial direction from the center to the circumference in the direction of rotation of the upper grinding disc of the mortar disc integrated body, forming an arc. The concave side of the arc is directed in the direction of rotation of the upper grinding disc of the mortar disc integrated body. In the circumferential direction, the receiving diffusion groove gradually and uniformly becomes shallower in the direction opposite to the direction of rotation of the upper grinding disc of the mortar disc integrated body, forming a deflected fan-shaped diffusion surface. The total area of the receiving diffusion groove accounts for 10-60% of the upper adsorption friction catalytic disc. The deepest part of the middle of a single receiving diffusion groove accounts for 10-50% of the thickness of the upper adsorption friction catalytic disc. The chord cutting angle of the arc of the receiving diffusion groove front guide groove is 6-90 degrees. The radially deepest middle part of the receiving diffusion groove is located directly below the junction of the filter ring plate and the lower disc grinding surface. The lower surface of the upper adsorption friction catalytic disc is uniformly engraved with a plurality of arc-shaped lower surface adsorption diffusion grooves radiating from the center to the circumference. From the starting point on the center side to the terminal point in the circumferential direction, the depth gradually increases from shallow to deep, and the end is open to the circumference of the disc of the upper adsorption friction catalytic disc. The depth is 2%-50% of the thickness of the adsorption friction catalytic disc. The lower surface adsorption diffusion grooves of the upper adsorption friction catalytic disc radially extend from the center to the circumference and deflect in the direction of rotation of the upper grinding disc of the mortar disc integrated body. The concave side of the arc is directed in the direction of rotation of the upper grinding disc of the mortar disc integrated body. The chord cutting angle formed by the line connecting the two end points of the arc and the tangent line at the starting point near the center is in the range of 6-90 degrees. The receiving diffusion grooves on the upper surface of the upper adsorption friction catalytic disc are not aligned with the lower surface adsorption diffusion grooves, but are alternately positioned.
[0018] Further, the friction catalytic driving disc is a disc arranged below the upper adsorption friction catalytic disc, and a plurality of arc-shaped upper friction diffusion grooves are uniformly arranged on the upper surface of the friction catalytic driving disc and diverge radially from the center to the periphery, the depth of the arc-shaped upper friction diffusion grooves increases from the starting point in the radial direction of the center to the terminal point in the circumferential direction, the end of the arc-shaped upper friction diffusion grooves is open to the periphery of the disc of the friction catalytic driving disc, the depth of the arc-shaped upper friction diffusion grooves is 2%-30% of the thickness of the friction catalytic driving disc, the arc-shaped upper friction diffusion grooves extend radially from the center to the periphery and are deflected in the opposite direction of the rotation direction of the integrated mortar disc and upper grinding disc, the concave side of the arc is directed to the opposite direction of the rotation direction of the integrated mortar disc and upper grinding disc, and the chord cutting angle formed by the line connecting the two endpoints of the arc and the tangent line at the starting point near the center is in the range of 6-90 degrees; the lower surface of the friction catalytic driving disc is a lower friction catalytic surface, and a plurality of arc-shaped lower friction diffusion grooves are uniformly arranged on the lower surface of the friction catalytic driving disc and diverge radially from the center to the periphery, the depth of the arc-shaped lower friction diffusion grooves increases from the starting point in the radial direction of the center to the terminal point in the circumferential direction, the end of the arc-shaped lower friction diffusion grooves is open to the periphery of the disc of the friction catalytic driving disc, the depth of the arc-shaped lower friction diffusion grooves is 2%-30% of the thickness of the friction catalytic driving disc, the arc-shaped lower friction diffusion grooves extend radially from the center to the periphery and are deflected in the rotation direction of the integrated mortar disc and upper grinding disc, the concave side of the arc is directed to the rotation direction of the integrated mortar disc and upper grinding disc, and the chord cutting angle formed by the line connecting the two endpoints of the arc and the tangent line at the starting point near the center is in the range of 6-90 degrees.
[0019] Further, the upper surface of the lower adsorption friction catalytic disc is uniformly provided with a plurality of arc-shaped upper adsorption friction catalytic disc surface diffusion grooves diverging radially from the center to the periphery, the depth of the arc-shaped upper adsorption friction catalytic disc surface diffusion grooves increases from the starting point in the radial direction of the center to the terminal point in the circumferential direction, the end of the arc-shaped upper adsorption friction catalytic disc surface diffusion grooves is open to the periphery of the disc of the lower adsorption friction catalytic disc, the depth of the arc-shaped upper adsorption friction catalytic disc surface diffusion grooves is 2%-30% of the thickness of the lower adsorption friction catalytic disc, the arc-shaped upper adsorption friction catalytic disc surface diffusion grooves extend radially from the center to the periphery and are deflected in the opposite direction of the rotation direction of the integrated mortar disc and upper grinding disc, the concave side of the arc is directed to the opposite direction of the rotation direction of the integrated mortar disc and upper grinding disc, and the chord cutting angle formed by the line connecting the two endpoints of the arc and the tangent line at the starting point near the center is in the range of 6-90 degrees; the lower surface of the lower adsorption friction catalytic disc is a smooth porous surface.
[0020] The supporting net is a corrosion-resistant steel metal net, the pore size is in the range of 1-10 mm, and the opening of the supporting net is higher than the opening of the liquid discharge pipe.
[0021] Further, the upper surface of the upper adsorption friction catalytic disc is matched with the friction surface of the grinding disc, the lower surface of the upper adsorption friction catalytic disc is matched with the upper friction catalytic surface of the friction catalytic driving disc, and the lower friction catalytic surface of the friction catalytic driving disc is matched with the upper surface of the adsorption friction catalytic disc.
[0022] The preparation method of the integrated mortar disc and adsorption friction catalytic purifier of the application comprises the following steps:
[0023] A: the preparation method of the upper adsorption friction catalytic disc and the lower adsorption friction catalytic disc is as follows:
[0024] (I) according to the molar ratio, calcium: titanium = 1:1 ratio, take calcium salt and titanium salt, preparation of calcium titanate sol, according to the mass ratio of calcium titanate contained in calcium titanate sol and activated carbon quality is 1:(2-10) ratio of activated carbon, the activated carbon is immersed in calcium titanate sol, together placed in a vacuum container can be heated, vacuum to relative pressure reached -0.09 MPa, pressure 30-60 min, continue to vacuum condition, heating to increase the temperature of vacuum container to calcium titanate sol boiling, volatilization concentrated to calcium titanate sol into gel, restore atmospheric pressure, at 105-125 ℃ continue to dry, again at 450-800 ℃ in the absence of air calcination 3-6 h, cooling to room temperature, get loaded calcium titanate activated carbon;
[0025] (II) according to the mass ratio, loaded calcium titanate activated carbon: barium titanate powder is (1-5):1 ratio, the loaded calcium titanate activated carbon and barium titanate powder mixed, ball milling to pass 500 mesh screen, ultrasonic dispersion in the ethanol solution containing mass percentage concentration of 0.01-0.2% polyvinyl alcohol, prepared into a mixed suspension liquid with solid content of 1-20%;
[0026] (III) take porous ceramic round piece, porosity 15-85%, pore size 50-1000 μm, processing into the required shape and size, in the mass percentage concentration of 1-6% sodium hydroxide solution immersion activation, aeration extraction 10-60 min, washing to near neutral, drying, immersed in the mixed suspension liquid obtained in step (II), together placed in a pressure vessel, under the condition of ultrasonic oscillation, synchronous vacuum to relative pressure -0.09 MPa, stop ultrasonic oscillation, pressure static 30-60 min, restore atmospheric pressure, again to 0.5-2 MPa, static 30-60 min, slowly restore atmospheric pressure, take out the porous ceramic round piece, 80-105 ℃ drying, again take the mixed suspension liquid obtained in step (II) evenly drop on it, until adsorption saturation, again 80-105 ℃ drying, repeat the drop and drying process until it can't be absorbed, after drying, isolated from air, to 1-3 ℃ / min heating rate to 280-290 ℃, heat preservation 30-60 min, continue to 3-5 ℃ / min heating rate to 500-800 ℃, heat preservation carbonization 3-6 h, cooling to room temperature, placed in the activation furnace, 800-1000 ℃, the introduction of supersaturated water vapor, activation 20-60 min, cooling to room temperature, drying, get adsorption friction catalytic disc;
[0027] (IV) according to the setting of the required diffusion groove of the upper and lower adsorption friction catalytic disc, get the upper and lower adsorption friction catalytic disc;
[0028] B: friction catalytic drive disc preparation method is:
[0029] Take polytetrafluoroethylene material, process into the required shape and size, polish and clean the surface with coarse sandpaper, and obtain a polytetrafluoroethylene blank;
[0030] The BaTiO3 nano powder is immersed in a sodium hydroxide solution with a mass percentage concentration of 5-10%, ultrasonic treatment is carried out for 30-60 min, soaking is carried out for more than 24 h, centrifugal separation is carried out, the barium titanate is washed with water until it is nearly neutral, a polyethylene glycol PEG-4000 ethanol solution with a mass percentage concentration of 0.1%-0.5% is added, ultrasonic treatment is carried out until the barium titanate is uniformly dispersed, a barium titanate suspension is obtained, the suspension is uniformly coated on the surface of the polytetrafluoroethylene blank, and ethanol is volatilized to obtain a blank coated with barium titanate;
[0031] A grinding tool with the same shape as the friction catalytic driving disc is taken, a layer of barium titanate nano powder is laid in the grinding tool, the blank coated with barium titanate is placed in the grinding tool, a layer of barium titanate nano powder is uniformly scattered on the upper surface of the blank, a cover is added to the grinding tool, the grinding tool is heated to 220-260 DEG C, a pressure of 1-5 MPa is synchronously applied, and the blank is molded for 20-30 min, the blank is cooled to room temperature, the blank is taken out, and the barium titanate powder not adhered to the surface is removed, a rotating shaft is installed in the center of the disc by means of a loose joint, and a friction catalytic driving disc is obtained.
[0032] In the B, the particle size of the BaTiO3 nano powder is preferably 50-100 nm.
[0033] C: installation
[0034] The grinding tool with the same shape as the friction catalytic driving disc is taken, a layer of barium titanate nano powder is laid in the grinding tool, the blank coated with barium titanate is placed in the grinding tool, a layer of barium titanate nano powder is uniformly scattered on the upper surface of the blank, a cover is added to the grinding tool, the grinding tool is heated to 220-260 DEG C, a pressure of 1-5 MPa is synchronously applied, and the blank is molded for 20-30 min, the blank is cooled to room temperature, the blank is taken out, and the barium titanate powder not adhered to the surface is removed, a rotating shaft is installed in the center of the disc by means of a loose joint, and a friction catalytic driving disc is obtained.
[0035] The application of the mortar disc integrated adsorption friction catalytic purifier of the application is used for detoxification of household garbage incineration fly ash or remediation of soil contaminated by heavy metals, polycyclic aromatic hydrocarbons and the like, and the application method is as follows:
[0036] The extraction liquid is prepared, all valves of the equipment are closed, the extraction liquid is placed in the medicine storage tank of the mortar disc integrated adsorption friction catalytic purifier, the medicine inlet valve is opened, the pressure pump is started, the extraction liquid is allowed to enter the medicine permeation and grinding pest inner cavity, and the extraction liquid is ensured to continuously and uniformly pass through the medicine permeation micropores of the medicine permeation and grinding pest and enter between the pestle and the mortar, the mortar disc integrated grinding driving motor is started, the upper grinding disc of the mortar disc integrated grinding is driven to rotate through the driving wheel, the upper grinding disc of the mortar disc integrated grinding is driven to synchronously rotate through the rotating shaft, and the gap between the pestle and the mortar and the mortar grinding pressure are adjusted through the elastic buffer.
[0037] Take the waste incineration fly ash or contaminated soil, after 50 mesh screen, add to the hopper, under the action of the rotating millstone and the pushing wing, the fly ash or contaminated soil enters the gap between pestle and mortar, and is mixed with the extraction liquid, the mortar is ground, the mixed liquid is formed, and gradually continues to enter the discharge port, the upper millstone continues to rotate, the mixed liquid is evenly coated on the inner circle of the lower millstone under the action of the guide ridge on the upper millstone and the guide groove on the lower millstone, and the liquid is further ground and reacted, and diffuses to the outer edge of the millstone; simultaneously open the air extraction valve, start the vacuum pump, and vacuumize the filter friction catalytic adsorption purifier, lay the filter cloth on the surface of the filter ring plate through the laying device, when the liquid is pushed to the outer circle of the lower millstone and falls on the filter ring plate, under the action of the vacuum force, the liquid passes through the filter cloth on the surface of the filter ring plate and enters the inner cavity of the filter friction catalytic adsorption purifier; simultaneously adjust the friction pressure adjusting knob, so that the friction catalytic driving disc drives the upper and lower adsorption friction catalytic discs to rotate at a lower speed than the friction catalytic driving disc, and a speed difference is formed between the upper adsorption friction catalytic disc and the friction catalytic driving disc, and the friction catalytic driving disc and the lower adsorption friction catalytic disc; the filtrate passing through the filter ring plate falls on the upper surface of the rotating upper adsorption friction catalytic disc, is distributed and diffused through the receiving diffusion groove, the main stream is diffused and adsorbed through the micropores on the upper adsorption friction catalytic disc, and diffuses into the friction surface between the upper adsorption friction catalytic disc and the friction catalytic driving disc; the friction catalysis is promoted by the lower surface adsorption diffusion groove and the upper friction diffusion groove, diffuses to the outer edge of the friction catalytic driving disc, and enters the gap between the friction catalytic driving disc and the lower adsorption friction catalytic disc, and continues to be catalyzed and diffused and adsorbed in the micropores on the lower adsorption friction catalytic disc; the purified liquid enters the cavity of the filter friction catalytic adsorption purifier, when the liquid surface in the cavity approaches the supporting net, open the liquid discharge valve and the liquid discharge pump on the liquid discharge pipe, and discharge the treated extraction liquid into the collection tank; adjust the working state of the mud scraper through the mud scraper adjusting knob, push the dried solid filter cake to the mud collecting groove, and discharge it to the mud collecting groove through the mud discharge port;
[0038] When the filtering resistance of the filter friction catalytic adsorption purifier increases, the filter cloth needs to be replaced; when the heavy metal content in the extracted liquid increases, the upper and lower adsorption friction catalytic discs in the filter friction catalytic adsorption purifier need to be regenerated. The regeneration method is as follows: first, stop the equipment work, drain the solution in the filter friction catalytic adsorption purifier, close all valves, open the exhaust valve, pour the elution liquid into the elution regenerant tank, open the elution valve and the elution pump, pump the elution liquid into the cavity of the filter friction catalytic adsorption purifier, so that the upper adsorption friction catalytic disc, the friction catalytic driving disc and the lower adsorption friction catalytic disc are immersed in the elution liquid, start the driving motor to drive the friction catalytic driving disc to rotate, and then friction washing is performed for 1-2 hours. Then, the liquid discharge valve and the liquid discharge pump are opened, and the elution liquid is drained. Then, clean water is pumped into the filter friction catalytic adsorption purifier through the elution regenerant tank and the elution pump. The water is used to clean and remove the residual elution liquid according to the same steps. After regeneration is completed, the filter friction catalytic adsorption purifier can be used again.
[0039] The mortar disc integrated adsorption friction catalytic purifier, the manufacturing method and the application have the following advantages:
[0040] Firstly, the mortar disc combined with mechanical chemical catalytic cracking extraction, filtering and adsorption friction catalytic separation purification is integrated, the structure is compact, the cost is low, and the device is practical and efficient.
[0041] Secondly, the grinding pest penetration combined with the mortar improves the extraction efficiency of the medicament, and greatly saves the amount of medicament.
[0042] Thirdly, the mortar disc grinding is integrated in series, energy saving and high efficiency, mechanical grinding is more sufficient, extraction and catalytic efficiency are higher, and the device is more complete.
[0043] Fourthly, the pest is static in the mortar, the mortar disc is integrated, the mortar rotating disc rotates, and the friction catalysis is driven by the mortar, so that the energy utilization rate is high, the equipment cost is low, and energy saving and high efficiency are achieved.
[0044] Fifthly, the extraction, filtering and separation, and the filter purification are integrated, the device is compact, efficient, low in consumption and high in efficiency.
[0045] Sixthly, the friction disc is designed to overlap, the friction area is larger, and the friction energy utilization is more sufficient.
[0046] Seventhly, the unique flow guide diffusion groove and groove design realize the functions of guiding flow, driving liquid flow, adsorption friction synchronous alternation, high efficiency and high performance.
[0047] Eighthly, the friction catalysis is combined with adsorption, the organic pollutants are catalytically degraded after enrichment, the catalytic performance is higher, the complex heavy metals are adsorbed after the complex is broken by friction catalysis, the performance is high, and the device is stable.
[0048] Ninthly, the adsorption friction disc is designed to avoid the influence of sediments on adsorption in the adsorption purification process, the regeneration cycle is long, the regeneration frequency is low, and the cost is saved. BRIEF DESCRIPTION OF DRAWINGS
[0049] Figure 1 Figure 1 is a schematic diagram of the overall structure of a one-piece adsorption friction catalytic purifier with a mortar plate;
[0050] Figure 2 Figure 2 is a schematic diagram of the internal structure of the one-piece adsorption friction catalytic purifier with a mortar plate;
[0051] Figure 3 Figure 3 is a schematic diagram of the upper grinding plate (12) of the one-piece adsorption friction catalytic purifier, with a bottom view (A) and a top view (B);
[0052] Figure 4 Figure 4 is a schematic diagram of the lower grinding plate (13) of the one-piece adsorption friction catalytic purifier, with a top view (A) and a bottom view (B);
[0053] Figure 5 Figure 5 is a schematic diagram of the friction plate of the adsorption friction catalytic purifier, with (a) the upper surface of the upper adsorption friction catalytic plate, (b) the lower surface of the upper adsorption friction catalytic plate, (c) the upper surface of the friction catalytic drive plate, (d) the lower surface of the friction catalytic drive plate, (e) the upper surface of the lower adsorption friction catalytic plate, (f) the lower surface of the lower adsorption friction catalytic plate, and (g) the supporting net;
[0054] Figure 6 Figure 6 is a schematic diagram of the shape of the medicine-permeating grinding pest (A) and the cross section of the pest wall at the medicine-permeating microporous portion (B);
[0055] In the above figure: 1 is a mortar disc integrated mill, 2 is a filter friction catalytic adsorption purifier, 11 is a medicine permeating grinding pestle, 12 is a mortar disc integrated upper mill disc, 110 is a medicine permeating micropore, 111 is a material pushing wing, 112 is a medicine inlet valve, 113 is a pressure pump, 114 is a medicine storage tank, 115 is a pressure gauge, 116 is a crossbeam, 117 is a support, 118 is an elastic buffer, 120 is an upper disc grinding surface, 121 is a grinding mortar, 122 is a material collecting hopper, 123 is a material discharge port, 1231 is a material distribution groove, 1201 is a disc grinding guide ridge, 124 is a rotating shaft, 1241 is a bearing, 125 is a driving wheel disc, 1251 is a driving wheel, 1252 is a driving motor, 13 is a lower disc mill, 130 is a lower disc grinding surface, 1301 is a disc grinding guide groove, 131 is a mill friction surface, 1311 is a friction guide groove, 2 is a filter friction catalytic adsorption purifier, 21 is a filter ring plate, 211 is a sludge collecting groove, 2111 is a sludge discharge port, 212 is a vacuum suction port, 213 is a gas suction valve, 214 is a vacuum pump, 22 is an upper adsorption friction catalytic disc, 23 is a friction catalytic driving disc, 24 is a lower adsorption friction catalytic disc, 25 is a supporting net, 220 is a through hole of the upper adsorption friction catalytic disc, 26 is a friction pressure adjusting knob, 251 is a liquid discharge port, 252 is a liquid discharge valve, 253 is a liquid discharge pump, 254 is a collecting groove, 27 is an elution regenerant tank, 271 is an elution pump, 272 is an elution valve, 215 is a sludge scraping knife, 216 is a laying device, 217 is an adjusting rod, 218 is a sludge scraping knife adjusting knob, 221 is an upper surface of the upper adsorption friction catalytic disc, 2211 is a receiving diffusion groove, 22111 is a front guide groove of the receiving diffusion groove, 222 is a lower surface of the upper adsorption friction catalytic disc, 2221 is a lower surface adsorption diffusion groove, 231 is an upper friction catalytic surface, 2311 is an upper friction diffusion groove, 232 is a lower friction catalytic surface, 2321 is a lower friction diffusion groove, 241 is an upper surface of the lower adsorption friction catalytic disc, 2411 is an upper surface diffusion groove of the lower adsorption friction catalytic disc. DETAILED DESCRIPTION
[0056] The application will be further described in detail below in combination with examples.
[0057] Example 1
[0058] This example is a mortar disc integrated adsorption friction catalytic purifier 1, which is a continuous breaking and extraction device for heavy metals wrapped in ash or soil particles, a mechanical and chemical extraction and decomposition device for organic pollutants, a synchronous adsorption friction catalytic breaking and decomposition adsorption deep purification processor, which comprises a mortar disc integrated mill 1 and a filter friction catalytic adsorption purifier 2, and the structure is shown in Figure 1 and Figure 2 :
[0059] The integrated mortar and mill 1 comprises a medicine-permeated grinding pestle 11, an integrated upper mill disc 12 and a lower disc mill 13; the medicine-permeated grinding pestle 11 is a hollow columnar body with a circular bottom head, and the circular head is provided with medicine-permeated micro-holes 110; the side wall of the medicine-permeated grinding pestle 11 is provided with a spiral descending pushing wing 111; the integrated upper mill disc 12 is a flat cylindrical body with an upper surface and a lower surface, the bottom of the cylindrical body is a circular plane, which is an upper mill surface 120, and a circular pit in the middle of the upper surface of the cylindrical body is a grinding mortar 121, the inner surface of the grinding mortar extends upward to form an integrated collecting hopper 122, the medicine-permeated grinding pestle 11 is arranged in the collecting hopper 122, and the circular head of the medicine-permeated grinding pestle 11 cooperates with the grinding mortar 121 of the integrated upper mill disc 12 to form a mortar mill extraction area; the lower disc mill 13 is arranged below the integrated upper mill disc 12 to form a rubbing reaction area.
[0060] The filter rubbing catalytic adsorption purifier 2 is arranged below the lower disc mill 13; the filter rubbing catalytic adsorption purifier 2 is internally provided with an upper adsorption rubbing catalytic disc 22, a rubbing catalytic driving disc 23, a lower adsorption rubbing catalytic disc 24 and a supporting net 25 from top to bottom; the rotating shaft 124 fixed in the center of the integrated upper mill disc 12 penetrates downward through the lower disc mill 13 and the upper adsorption rubbing catalytic disc 22, is flexibly combined with the central axis of the rubbing catalytic driving disc 23, and drives the lower disc mill 13 and the rubbing catalytic driving disc 23 to rotate synchronously through the driving wheel disc 125 arranged around the integrated upper mill disc 12.
[0061] The medicine-permeated micro-holes 110 are a plurality of through-holes penetrating the wall of the pestle and inclined outward from the cavity to the rotating direction of the grinding mortar, which are arranged at the lower part of the side wall and the bottom head of the medicine-permeated grinding pestle 11, the hole diameter is 0.1 mm, and the inclination angle is 60 degrees with the radial direction; the upper part of the hollow cavity of the medicine-permeated grinding pestle 11 is communicated with the medicine storage tank 114 through the medicine inlet pipe provided with a medicine inlet valve 112 and a pressure pump 113; the medicine-permeated grinding pestle 11 is provided with a pressure gauge 115 to indicate the pressure in the cavity; the pressure is used to provide extraction liquid to the mortar mill extraction area between the circular head of the medicine-permeated grinding pestle 11 and the grinding mortar 121 through the medicine-permeated micro-holes 110; the upper part of the medicine-permeated grinding pestle 11 is fixed on the adjustable height cross beam 116, the cross beam 116 is fixed on the base of the filter rubbing catalytic adsorption purifier 2 through the support 117, and the cross beam 116 and the support 117 are connected through the elastic buffer 118 with adjustable height of the cross beam 116 to change the friction pressure between the pestle and the mortar and make the medicine-permeated grinding pestle 11 have elastic buffering.
[0062] The lower surface of the integrated mortar and grinding disc 12 is a whole flat circular upper disc grinding surface 120. The integrated mortar and grinding disc 12 is provided with a grinding mortar 121. The bottom of the grinding mortar is coaxial with the integrated mortar and grinding disc 12. The grinding mortar is raised around the periphery to form a collecting hopper 122. The bottom of the grinding mortar is provided with a discharge port 123 deviated from the center of the mortar bottom. The lower end of the discharge port is opened to the upper disc grinding surface 120 to form a gradually spreading distribution groove 1231 in the opposite direction of rotation. The upper disc grinding surface 120 is provided with a plurality of disc grinding guide ridges 1201 radially deviated 8-20 degrees in the opposite direction of rotation of the integrated mortar and grinding disc 12. The center of the upper disc grinding surface 120 of the integrated mortar and grinding disc 12 is provided with a rotating shaft 124 perpendicular to the upper disc grinding surface. The integrated mortar and grinding disc 12 is provided with a driving wheel disc 125 around the periphery. The driving wheel 1251 engaged with the driving wheel disc 125 and the driving motor 1252 drive the integrated mortar and grinding disc 12 to rotate along the rotating shaft 124. The structural diagram is shown in Figure 3 .
[0063] The lower disc grinding disc 13 is provided opposite to the lower surface of the upper disc grinding surface 120 of the integrated mortar and grinding disc 12. The structural diagram is shown in Figure 4 . The upper surface of the lower disc grinding disc is a circular lower disc grinding surface 130. The lower disc grinding surface is provided with a plurality of disc grinding guide grooves 1301 radially deviated 8-60 degrees in the direction of rotation of the integrated mortar and grinding disc 12. The lower surface of the lower disc grinding disc is a grinding disc friction surface 131 provided with a plurality of friction guide grooves 1311 radially deviated 8-60 degrees in the opposite direction of rotation of the integrated mortar and grinding disc 12. The lower disc grinding surface 130 is aligned and matched with the upper disc grinding surface 120. The radius of the lower disc grinding surface 130 is smaller than that of the upper disc grinding surface 120. The outer circle of the lower disc grinding surface 130 is provided with a filter ring plate 21. The rotating shaft 124 of the integrated mortar and grinding disc 12 is provided in the center of the lower disc grinding disc 13 through the bearing 1241. The axis of the rotating shaft 124 is perpendicular to the upper disc grinding surface 120 and the lower disc grinding surface 130.
[0064] The filter friction catalytic adsorption purifier 2 is a tank-shaped pressure-resistant container provided below the lower disc grinding disc 13. The structural diagram is shown in Figure 5, the filter ring plate 21 is arranged on the outer circle of the lower disc grinding surface 130 of the lower disc grinding disc 13, and the upper surface is not higher than the lower disc grinding surface 130, the outer circle of the filter ring plate 21 is provided with a sludge collecting groove 211, the outer circle of the sludge collecting groove 211 is provided with a sludge discharge port 2111, the upper part of the filter friction catalytic adsorption purifier 2 directly below the filter ring plate 21 is a ring-shaped cavity, a vacuum port 212 is arranged near the upper part of the cavity side wall, and the vacuum port 212 is communicated with a vacuum pump 214 through a pipeline provided with an air exhaust valve 213; the filter friction catalytic adsorption purifier 2 is provided with an upper adsorption friction catalytic disc 22, a friction catalytic driving disc 23, a lower adsorption friction catalytic disc 24 and a supporting net 25 from top to bottom; the upper adsorption friction catalytic disc 22 is provided with an upper adsorption friction catalytic disc through hole 220 in the center, the lower end of the rotating shaft 124 extends downward and is flexibly connected to the center of the friction catalytic driving disc 23 by penetrating the upper adsorption friction catalytic disc through hole 220, and the flexible connection is that the friction catalytic driving disc 23 can rotate with the shaft and can move axially along the rotating shaft 124; the shaft center of the rotating shaft 124 is perpendicular to the plane where the upper adsorption friction catalytic disc 22, the friction catalytic driving disc 23 and the lower adsorption friction catalytic disc 24 are located; the friction pressure adjusting knob 26 is arranged on the wall of the lower part of the supporting net 25; the lowest part of the bottom of the filter friction catalytic adsorption purifier 2 is provided with a liquid discharge port 251, which is communicated with a collecting groove 254 through a pipeline provided with a liquid discharge valve 252 and a liquid discharge pump 253; the filter friction catalytic adsorption purifier 2 is provided with an elution regenerant tank 27, which is communicated with the filter friction catalytic adsorption purifier through a pipeline provided with an elution pump 271 and an elution valve 272; the mud scraper 215 and the laying device 216 are arranged at the corresponding upper part of the filter ring plate 21, the mud scraper 215 and the laying device 216 can rotate with the mortar disc and the upper grinding disc 12, and the height and working state are adjusted by the mud scraper adjusting knob 218 through the adjusting rod 217.
[0065] The lower end of the medicine permeating grinding pestle 11 cooperates with the mortar 121, and the gap gradually decreases from top to bottom, the width of the spiral material pushing wing of the medicine permeating grinding pestle 11 also decreases, and the outer edge of the material pushing wing cooperates with the mortar wall, the upper disc grinding surface 120 and the lower disc grinding surface 130, the size of the gap between the lower end of the medicine permeating grinding pestle 11 and the mortar 121 and the size of the mortar pressure can be adjusted by adjusting the height of the cross beam, that is, by adjusting the height of the medicine permeating grinding pestle 11, and the structure diagram of the medicine permeating grinding pestle is shown in Figure 6 .
[0066] The upper adsorption friction catalytic disc 22 is a circular disc, and a plurality of receiving diffusion grooves 2211 are evenly arranged on the upper surface 221 of the upper adsorption friction catalytic disc, and the receiving diffusion grooves 2211 are gradually widened from the center to the circumference in the radial direction, and the middle part is deep and the two ends are shallow, and the receiving diffusion groove front guide groove 22111 is formed in the circular arc shape on the side of the upper grinding disc 12 of the integrated mortar disc in the rotating direction, and the receiving diffusion groove front guide groove 22111 is gradually deflected to the rotating direction of the integrated mortar disc upper grinding disc 12 in the radial direction, and the arc is curved, and the concave side of the arc is directed to the rotating direction of the integrated mortar disc upper grinding disc 12, and the receiving diffusion groove 2211 is gradually and uniformly shallower in the circumferential direction to the opposite direction of the integrated mortar disc upper grinding disc 12, and forms a deflected fan-shaped diffusion surface, and the total area of the receiving diffusion groove 2211 accounts for 30% of the upper adsorption friction catalytic disc 22, and the deepest part of the single receiving diffusion groove 2211 accounts for 20% of the thickness of the upper adsorption friction catalytic disc 22, and the chord cutting angle of the arc of the receiving diffusion groove front guide groove 22111 is 60 degrees, and the radially deepest middle part of the receiving diffusion groove 2211 is located directly below the junction of the filter ring plate 21 and the lower disc grinding surface 130; the lower surface 222 of the upper adsorption friction catalytic disc is evenly engraved with a plurality of arc-shaped lower surface adsorption diffusion grooves 2221 radiating from the center to the periphery, and the depth is from shallow to deep from the starting point of the center side to the end point in the circumferential direction, and the end is open to the circumference of the upper adsorption friction catalytic disc 22, and the depth is 30% of the thickness of the adsorption friction catalytic disc 22, and the lower surface adsorption diffusion groove 2221 of the upper adsorption friction catalytic disc 22 extends radially from the center to the periphery and is deflected to the rotating direction of the integrated mortar disc upper grinding disc 12, and the concave side of the arc is directed to the rotating direction of the integrated mortar disc upper grinding disc 12, and the chord cutting angle formed by the line connecting the two ends of the arc and the tangent line near the starting end of the center is in the range of 10 degrees; the receiving diffusion grooves 2211 on the upper surface of the upper adsorption friction catalytic disc 22 and the lower surface adsorption diffusion grooves 2221 are not aligned vertically, but are alternately positioned.
[0067] The friction catalysis driving disc 23 is a disc arranged below the upper adsorption friction catalysis disc 22. The upper surface of the friction catalysis driving disc 23 is an upper friction catalysis surface 231 uniformly provided with a plurality of arc-shaped upper friction diffusion grooves 2311 radiating from the center to the periphery. From the starting point in the center direction to the terminal point in the circumferential direction, the depth is from shallow to deep, and the terminal end is open to the circumference of the disc of the friction catalysis driving disc 23. The depth is 2%-30% of the thickness of the friction catalysis driving disc 23. The upper friction diffusion grooves 2311 extend radially from the center to the periphery and are deflected in the opposite direction of the rotation of the integrated mortar disc upper grinding disc 12. The concave side of the arc is directed to the opposite direction of the rotation of the integrated mortar disc upper grinding disc 12. The chord cut angle formed by the line connecting the two endpoints of the arc and the tangent line at the starting point near the center is in the range of 6-90 degrees. The lower surface of the friction catalysis driving disc 23 is a lower friction catalysis surface 232 uniformly provided with a plurality of arc-shaped lower friction diffusion grooves 2321 radiating from the center to the periphery. From the starting point in the center direction to the terminal point in the circumferential direction, the depth is from shallow to deep, and the terminal end is open to the circumference of the disc of the friction catalysis driving disc 23. The depth is 2%-30% of the thickness of the friction catalysis driving disc 23. The lower friction diffusion grooves 2321 extend radially from the center to the periphery and are deflected in the direction of the rotation of the integrated mortar disc upper grinding disc 12. The concave side of the arc is directed to the direction of the rotation of the integrated mortar disc upper grinding disc 12. The chord cut angle formed by the line connecting the two endpoints of the arc and the tangent line at the starting point near the center is in the range of 6-90 degrees.
[0068] The upper surface 241 of the lower adsorption friction catalysis disc 24 is uniformly provided with a plurality of arc-shaped upper adsorption friction catalysis disc surface diffusion grooves 2411 radiating from the center to the periphery. From the starting point in the center direction to the terminal point in the circumferential direction, the depth is from shallow to deep, and the terminal end is open to the circumference of the disc of the lower adsorption friction catalysis disc 24. The depth is 2%-30% of the thickness of the lower adsorption friction catalysis disc 24. The upper adsorption friction catalysis disc surface diffusion grooves 2411 extend radially from the center to the periphery and are deflected in the opposite direction of the rotation of the integrated mortar disc upper grinding disc 12. The concave side of the arc is directed to the opposite direction of the rotation of the integrated mortar disc upper grinding disc 12. The chord cut angle formed by the line connecting the two endpoints of the arc and the tangent line at the starting point near the center is in the range of 6-90 degrees. The lower surface of the lower adsorption friction catalysis disc is a smooth porous surface.
[0069] The supporting net 25 is a corrosion-resistant steel metal net with a pore size range of 1-10 mm, and is arranged higher than the opening of the liquid discharge pipe.
[0070] The upper surface 221 of the upper adsorption friction catalysis disc 22 is frictionally matched with the grinding disc friction surface 131. The lower surface 222 of the upper adsorption friction catalysis disc is frictionally matched with the upper friction catalysis surface of the friction catalysis driving disc 23. The lower friction catalysis surface of the friction catalysis driving disc 23 is frictionally matched with the upper surface of the adsorption friction catalysis disc 24.
[0071] The preparation method of the integrated mortar disc adsorption friction catalysis purifier 1 of the present embodiment 1 comprises the following steps:
[0072] A: The preparation method of the upper adsorptive friction catalytic disc 22 and the lower adsorptive friction catalytic disc 24 is as follows:
[0073] (I) According to the molar ratio of calcium: titanium = 1:1, take calcium salt and titanium salt to prepare calcium titanate sol, take activated carbon according to the ratio of the mass of calcium titanate contained in the calcium titanate sol to the mass of activated carbon, which is 1:5, immerse the activated carbon in the calcium titanate sol, and place them in a vacuum container that can be heated, vacuumize to a relative pressure of -0.09 MPa, maintain the pressure for 45 min, continuously vacuumize, and heat to increase the temperature of the vacuum container to the boiling point of the calcium titanate sol, volatilize and concentrate to convert the calcium titanate sol into a gel, restore the atmospheric pressure, continue to dry at 110°C, and calcine at 600°C in an air-tight state for 5 h, cool to room temperature, and obtain the calcium titanate-loaded activated carbon;
[0074] (II) According to the mass ratio of calcium titanate-loaded activated carbon: barium titanate powder = 2:1, mix the calcium titanate-loaded activated carbon and the barium titanate powder, ball mill to pass through a 500-mesh sieve, and ultrasonically disperse in an ethanol solution containing 0.1% polyvinyl alcohol by mass percentage to prepare a mixed suspension with a solid content of 10%;
[0075] (III) Take porous ceramic round sheets with a porosity of 65% and a pore size of 50-1000 μm, process them into the required shape and size, immerse them in a 2% sodium hydroxide solution for activation, aerate and extract for 30 min, wash with water until near neutral, dry, immerse them in the mixed suspension obtained in step (II), place them in a pressure container, simultaneously vacuumize to a relative pressure of -0.09 MPa under ultrasonic oscillation, stop the ultrasonic oscillation, maintain the pressure for 40 min, restore the atmospheric pressure, pressurize to 1 MPa again, maintain for 40 min, slowly restore the atmospheric pressure, take out the porous ceramic round sheets, dry them at 100°C, take the mixed suspension obtained in step (II), and drop it evenly on the porous ceramic round sheets until saturation, dry them again at 100°C, repeat the process of dropping and drying until no more absorption, dry them in an air-tight state, heat them to 280°C at a rate of 2°C / min, maintain the temperature for 60 min, continue to heat to 600°C at a rate of 4°C / min, maintain the temperature for carbonization for 4 h, cool to room temperature, place them in an activation furnace, introduce supersaturated water vapor at 900°C, activate for 40 min, cool to room temperature, dry, and obtain the adsorptive friction catalytic disc;
[0076] (IV) According to the required diffusion grooves of the upper adsorptive friction catalytic disc 22 and the lower adsorptive friction catalytic disc 24, obtain the upper adsorptive friction catalytic disc 22 and the lower adsorptive friction catalytic disc 24;
[0077] B: The preparation method of the friction catalytic driving disc 23 is as follows:
[0078] Take polytetrafluoroethylene material, process into the required shape and size, polish the surface with coarse sandpaper, and obtain a polytetrafluoroethylene blank;
[0079] The BaTiO3 nanopowder with a particle size range of 50-100 nm is immersed in a 6% mass concentration sodium hydroxide solution, ultrasonically treated for 60 min, soaked for more than 24 h, centrifuged, washed with water until near neutral, and then 0.2% mass concentration polyethylene glycol PEG-4000 ethanol solution is added, ultrasonically treated until uniformly dispersed, to obtain a barium titanate suspension, which is uniformly coated on the surface of the polytetrafluoroethylene blank, and the ethanol is volatilized to obtain a blank coated with barium titanate;
[0080] A grinding tool of the same shape as the friction catalytic drive disc 23 is taken, a layer of barium titanate nanopowder is laid in the grinding tool, the blank coated with barium titanate is placed in the grinding tool, a layer of barium titanate nanopowder is uniformly spread on the upper surface of the blank, the upper cover of the grinding tool is added, the grinding tool is heated to 240℃, and a pressure of 2 MPa is synchronously applied for 20 min of mold pressing, and then cooled to room temperature, taken out, and the surface of the barium titanate powder that is not adhered is removed, a live joint is used to install the rotating shaft at the center of the disc, and a friction catalytic drive disc 23 is obtained;
[0081] C: Installation
[0082] According to the structure of the integrated adsorption friction catalytic purifier, the integrated adsorption friction catalytic purifier is obtained.
[0083] Example 2
[0084] This embodiment is an integrated adsorption friction catalytic purifier 2 and a preparation method thereof:
[0085] The integrated adsorption friction catalytic purifier 2 of this embodiment is the same as that of example 1, except that:
[0086] The medicine-permeable micropore 110 is a plurality of through holes penetrating the wall of the pestle, which are inclined from the inside of the cavity to the outside and towards the direction of rotation of the millstone, and the hole diameter is 0.3 mm and the inclination angle is 90 degrees with the radial direction.
[0087] The total area of the receiving diffusion groove 2211 accounts for 60% of the upper adsorption friction catalytic disc 22, the deepest part of the single receiving diffusion groove 2211 accounts for 10% of the thickness of the upper adsorption friction catalytic disc 22, the chord cutting angle of the arc-shaped leading groove 22111 of the receiving diffusion groove is 90 degrees, and the radially deepest part of the receiving diffusion groove 2211 is located directly below the junction of the filter ring plate 21 and the lower disc grinding surface 130; the lower surface 222 of the upper adsorption friction catalytic disc is uniformly engraved with a plurality of arc-shaped lower surface adsorption diffusion grooves 2221 radiating from the center to the periphery, the depth increases from the starting point on the center side to the terminal point in the circumferential direction, and the end is open to the circumference of the disc of the upper adsorption friction catalytic disc 22, the depth is 50% of the thickness of the adsorption friction catalytic disc 22, the lower surface adsorption diffusion groove 2221 of the upper adsorption friction catalytic disc 22 extends radially from the center to the periphery and is deflected towards the rotation direction of the integrated upper mill disc 12, the concave side of the arc faces the rotation direction of the integrated upper mill disc 12, and the chord cutting angle formed by the line connecting the two endpoints of the arc and the tangent line near the starting point of the center is in the range of 90 degrees; the receiving diffusion groove 2211 on the upper surface of the upper adsorption friction catalytic disc 22 is not aligned with the lower surface adsorption diffusion groove 2221, and is alternately positioned.
[0088] The friction catalytic drive disc 23 is a disc arranged below the upper adsorption friction catalytic disc 22, the upper surface of the friction catalytic drive disc 23 is uniformly provided with a plurality of arc-shaped upper friction diffusion grooves 2311 radiating from the center to the periphery, the depth increases from the starting point in the center direction to the terminal point in the circumferential direction, and the end is open to the circumference of the disc of the friction catalytic drive disc 23, the depth is 30% of the thickness of the friction catalytic drive disc 23, the upper friction diffusion groove 2311 extends radially from the center to the periphery and is deflected towards the opposite direction of the rotation of the integrated upper mill disc 12, the concave side of the arc faces the opposite direction of the rotation of the integrated upper mill disc 12, and the chord cutting angle formed by the line connecting the two endpoints of the arc and the tangent line near the starting point of the center is in the range of 90 degrees; the lower surface of the friction catalytic drive disc 23 is a lower friction catalytic surface 232, which is uniformly provided with a plurality of arc-shaped lower friction diffusion grooves 2321 radiating from the center to the periphery, the depth increases from the starting point in the center direction to the terminal point in the circumferential direction, and the end is open to the circumference of the disc of the friction catalytic drive disc 23, the depth is 30% of the thickness of the friction catalytic drive disc 23, the lower friction diffusion groove 2321 extends radially from the center to the periphery and is deflected towards the rotation direction of the integrated upper mill disc 12, the concave side of the arc faces the rotation direction of the integrated upper mill disc 12, and the chord cutting angle formed by the line connecting the two endpoints of the arc and the tangent line near the starting point of the center is in the range of 90 degrees.
[0089] A plurality of arc-shaped lower adsorption catalytic disc upper surface diffusion grooves 2411 are evenly arranged on the lower adsorption catalytic disc 24 upper surface 241, which radiate from the center to the periphery. The depth increases from the starting point in the radial direction to the end point in the circumferential direction, and the end is open to the circumference of the lower adsorption catalytic disc 24. The depth is 30% of the thickness of the lower adsorption catalytic disc 24. The lower adsorption catalytic disc upper surface diffusion grooves 2411 extend radially from the center to the periphery, deflect in the opposite direction of the rotation of the integrated millstone upper millstone 12, and the concave side of the arc faces the opposite direction of the rotation of the integrated millstone upper millstone 12. The chord angle formed by the line connecting the two endpoints of the arc and the tangent at the starting point near the center is in the range of 90 degrees. The lower surface of the lower adsorption catalytic disc is a smooth porous surface.
[0090] The supporting net 25 is a corrosion-resistant steel metal net with a pore size of 10 mm, and is arranged higher than the opening of the liquid discharge pipe.
[0091] The preparation method of the integrated adsorption catalytic disc millstone 2 is as follows:
[0092] A: The preparation method of the upper adsorption catalytic disc 22 and the lower adsorption catalytic disc 24 is as follows:
[0093] (I) According to the molar ratio of calcium to titanium = 1:1, take calcium salt and titanium salt, prepare calcium titanate sol, and dissolve the sol by boiling according to the mass ratio of calcium titanate in the calcium titanate sol to activated carbon = 1:10. Volatilize and concentrate to convert the calcium titanate sol into a gel. Restore normal pressure, continue to dry at 125℃, and then calcine at 800℃ in an air-tight environment for 6h. Cool to room temperature to obtain calcium titanate-loaded activated carbon;
[0094] (II) According to the mass ratio of calcium titanate-loaded activated carbon to barium titanate powder = 5:1, mix the calcium titanate-loaded activated carbon and the barium titanate powder, ball mill to pass through a 500 mesh sieve, and ultrasonic disperse in an ethanol solution containing 0.2% polyvinyl alcohol by mass concentration to prepare a mixed suspension with a solid content of 20%;
[0095] (Three) take porous ceramic disc, porosity 85%, pore size 50-1000 μm, process into the desired shape and size, soak in 6% sodium hydroxide solution for activation, aeration extraction for 60 min, wash with water until nearly neutral, dry, immerse in the mixed suspension obtained in step (two), together placed in a pressure vessel, under ultrasonic oscillation conditions, simultaneously vacuum extraction to relative pressure -0.09 MPa, stop ultrasonic oscillation, pressure holding for 60 min, restore normal pressure, re-pressurize to 2 MPa, stand for 60 min, slowly restore normal pressure, take out the porous ceramic disc, dry at 105°C, again take the mixed suspension obtained in step (two) and drop evenly on it until saturated adsorption, dry again at 105°C, repeat the process of dropping and drying until no absorption, dry in isolation from air, heat to 290°C at a heating rate of 3°C / min, keep for 30 min, continue to heat to 800°C at a heating rate of 5°C / min, keep for 3 h, cool to room temperature, place in an activation furnace, pass in supersaturated water vapor at 1000°C, activate for 20 min, cool to room temperature, dry, to obtain the adsorptive friction catalytic disc;
[0096] (Four) according to the required diffusion groove corresponding to the setting of the upper adsorptive friction catalytic disc 22 and the lower adsorptive friction catalytic disc 24, to obtain the upper adsorptive friction catalytic disc 22 and the lower adsorptive friction catalytic disc 24;
[0097] B: the preparation method of the friction catalytic driving disc 23 is as follows:
[0098] Take polytetrafluoroethylene material, process into the desired shape and size, polish the surface with coarse sandpaper to obtain polytetrafluoroethylene blank;
[0099] Immerse BaTiO3 nano powder with a particle size range of 50-100 nm in 10% sodium hydroxide solution, ultrasonic treatment for 60 min, soak for more than 24 h, centrifugal separation, wash the barium titanate with water until nearly neutral, then add 0.5% polyethylene glycol PEG-4000 ethanol solution, ultrasonic treatment until evenly dispersed, to obtain barium titanate suspension, evenly coat on the surface of the polytetrafluoroethylene blank, volatilize the ethanol to obtain the blank coated with barium titanate;
[0100] Take the same shape of the abrasive tool of the friction catalytic driving disc 23, lay a layer of barium titanate nano powder in the abrasive tool, place the blank coated with barium titanate in the abrasive tool, evenly spread a layer of barium titanate nano powder on the upper surface of the blank, add the mold cover, heat the abrasive tool to 260°C, simultaneously apply a pressure of 5 MPa for 20 min, cool to room temperature, take out, remove the barium titanate powder not adhered on the surface, adopt a loose joint to install the rotating shaft at the center of the disc, to obtain the friction catalytic driving disc 23;
[0101] C: installation
[0102] According to the structure of the integrated adsorption friction catalytic purifier, the integrated adsorption friction catalytic purifier is installed.
[0103] Example 3
[0104] The embodiment is an integrated adsorption friction catalytic purifier and a preparation method thereof:
[0105] The integrated adsorption friction catalytic purifier is different from that in example 1 in that:
[0106] The medicine-permeating micropore 110 is a plurality of through holes penetrating the wall of the pestle, inclined from the inside of the cavity to the outside and towards the rotation direction of the grinding mortar, provided at the side wall and the bottom of the lower part of the medicine-permeating pestle 11, with a hole diameter of 0.01 mm and an inclination angle of 10 degrees with the radial direction.
[0107] The total area of the receiving diffusion groove 2211 accounts for 10% of the upper adsorption friction catalytic disc 22, and the deepest part of the single receiving diffusion groove 2211 accounts for 10% of the thickness of the upper adsorption friction catalytic disc 22. The chord cutting angle of the arc-shaped front guide groove 22111 of the receiving diffusion groove is 6 degrees. The radially deepest part of the receiving diffusion groove 2211 is located directly below the junction of the filter ring plate 21 and the lower disc grinding surface 130. The lower surface 222 of the upper adsorption friction catalytic disc is uniformly engraved with a plurality of arc-shaped lower surface adsorption diffusion grooves 2221 radiating from the center to the periphery. From the starting point on the center side to the terminal point in the circumferential direction, the depth gradually increases from shallow to deep, and the end is open to the periphery of the disc of the upper adsorption friction catalytic disc 22. The depth is 2% of the thickness of the adsorption friction catalytic disc 22. The lower surface adsorption diffusion grooves 2221 of the upper adsorption friction catalytic disc 22 radially extend from the center to the periphery and are deflected towards the rotation direction of the integrated upper grinding disc 12 of the mortar disc. The concave side of the arc is towards the rotation direction of the integrated upper grinding disc 12 of the mortar disc. The chord cutting angle formed by the line connecting the two endpoints of the arc and the tangent line at the starting point near the center is in the range of 6 degrees. The receiving diffusion groove 2211 on the upper surface of the upper adsorption friction catalytic disc 22 is not aligned with the lower surface adsorption diffusion groove 2221, but is alternately positioned.
[0108] The friction catalysis driving disc 23 is a disc arranged below the upper adsorption friction catalysis disc 22. The upper surface of the friction catalysis driving disc 23 is an upper friction catalysis surface 231 uniformly provided with a plurality of arc-shaped upper friction diffusion grooves 2311 radiating from the center to the periphery. From the starting point in the center direction to the terminal point in the circumferential direction, the depth is from shallow to deep, and the terminal end is open to the circumference of the disc of the friction catalysis driving disc 23. The depth is 2% of the thickness of the friction catalysis driving disc 23. The upper friction diffusion grooves 2311 extend radially from the center to the periphery and are deflected in the opposite direction of the rotation of the integrated upper mill disc 12. The concave side of the arc is directed to the opposite direction of the rotation of the integrated upper mill disc 12. The chord cut angle formed by the line connecting the two endpoints of the arc and the tangent line at the starting point near the center is in the range of 6 degrees. The lower surface of the friction catalysis driving disc 23 is a lower friction catalysis surface 232 uniformly provided with a plurality of arc-shaped lower friction diffusion grooves 2321 radiating from the center to the periphery. From the starting point in the center direction to the terminal point in the circumferential direction, the depth is from shallow to deep, and the terminal end is open to the circumference of the disc of the friction catalysis driving disc 23. The depth is 2% of the thickness of the friction catalysis driving disc 23. The lower friction diffusion grooves 2321 extend radially from the center to the periphery and are deflected in the direction of the rotation of the integrated upper mill disc 12. The concave side of the arc is directed to the direction of the rotation of the integrated upper mill disc 12. The chord cut angle formed by the line connecting the two endpoints of the arc and the tangent line at the starting point near the center is in the range of 6 degrees.
[0109] The upper surface 241 of the lower adsorption friction catalysis disc 24 is uniformly provided with a plurality of arc-shaped upper surface diffusion grooves 2411 radiating from the center to the periphery. From the starting point in the center direction to the terminal point in the circumferential direction, the depth is from shallow to deep, and the terminal end is open to the circumference of the disc of the lower adsorption friction catalysis disc 24. The depth is 2% of the thickness of the lower adsorption friction catalysis disc 24. The upper surface diffusion grooves 2411 extend radially from the center to the periphery and are deflected in the opposite direction of the rotation of the integrated upper mill disc 12. The concave side of the arc is directed to the opposite direction of the rotation of the integrated upper mill disc 12. The chord cut angle formed by the line connecting the two endpoints of the arc and the tangent line at the starting point near the center is in the range of 6 degrees. The lower surface of the lower adsorption friction catalysis disc is a smooth porous surface.
[0110] The supporting net 25 is a corrosion-resistant steel metal net with a pore size range of 1 mm, arranged higher than the opening of the liquid discharge pipe.
[0111] The preparation method of the integrated adsorption friction catalysis purifier 3 is as follows:
[0112] A: The preparation method of the upper adsorption friction catalysis disc 22 and the lower adsorption friction catalysis disc 24 is as follows:
[0113] (One) according to the molar ratio, calcium: titanium = 1:1 ratio, take calcium salt and titanium salt, preparation of calcium titanate sol, according to the mass ratio of calcium titanate contained in the calcium titanate sol and activated carbon quality ratio is 1:2 ratio of activated carbon, the activated carbon immersed in calcium titanate sol, together in the vacuum container can be heated, vacuum to relative pressure reached -0.09 MPa, pressure 30 min, continue to vacuum conditions, heating to increase the vacuum container temperature to calcium titanate sol boiling, volatilization concentrated into calcium titanate sol into gel, restore atmospheric pressure, at 105 ℃ continue to dry, again at 450 ℃ in the absence of air calcination 6 h, cooling to room temperature, get loaded calcium titanate activated carbon;
[0114] (Two) according to the mass ratio, loaded calcium titanate activated carbon: barium titanate powder is 1:1 ratio, the loaded calcium titanate activated carbon and barium titanate powder mixed, ball milling to pass 500 mesh screen, ultrasonic dispersion in the mass percentage concentration of 0.01% polyvinyl alcohol in ethanol solution, prepared into a solid content of 1% mixed suspension liquid;
[0115] (Three) take porous ceramic round piece, porosity 15%, pore size 50-1000 μm, processing into the required shape and size, in the mass percentage concentration of 1% sodium hydroxide solution immersion activation, aeration extraction 10 min, washed to near neutral, drying, immersed in the mixed suspension liquid obtained in step (two), together in the pressure vessel, under the condition of ultrasonic oscillation, synchronous vacuum to relative pressure -0.09 MPa, stop ultrasonic oscillation, pressure standing 30 min, restore atmospheric pressure, again to 0.5 MPa, standing 30 min, slowly restore atmospheric pressure, take out the porous ceramic round piece, 80 ℃ drying, again take the mixed suspension liquid obtained in step (two) evenly drop on it, until adsorption saturation, again at 80 ℃ drying, repeat the drop drying process until can't absorb, drying in the absence of air, with 1 ℃ / min heating rate to 280 ℃, heat preservation 60 min, continue to heat to 500 ℃ with 3 ℃ / min heating rate, heat preservation carbonization 6 h, cooling to room temperature, placed in the activation furnace, 800 ℃, the introduction of supersaturated water vapor, activation 20 min, cooling to room temperature, drying, get adsorption and friction catalytic disc;
[0116] (Four) according to the upper adsorption and friction catalytic disc 22 and the lower adsorption and friction catalytic disc 24 corresponding to the required diffusion groove, get the upper adsorption and friction catalytic disc 22 and the lower adsorption and friction catalytic disc 24;
[0117] B: friction catalytic drive disc 23 preparation method is:
[0118] Take polytetrafluoroethylene material, processing into the required shape and size, with sandpaper polishing clean surface, get polytetrafluoroethylene blank;
[0119] The BaTiO3 nano-powder with a particle size range of 50-100 nm is immersed in a 5% mass concentration sodium hydroxide solution, ultrasonic treated for 30 min, soaked for more than 24 h, centrifuged, washed with water until near neutral, then 0.1% mass concentration polyethylene glycol PEG-4000 ethanol solution is added, ultrasonic treated until uniformly dispersed, to obtain a BaTiO3 suspension, which is uniformly coated on the surface of a polytetrafluoroethylene blank, and the ethanol is removed by volatilization to obtain a blank coated with BaTiO3;
[0120] A grinding tool with the same shape as the friction catalytic driving disc 23 is taken, and a layer of BaTiO3 nano-powder is laid in the grinding tool. The blank coated with BaTiO3 is placed in the grinding tool, and a layer of BaTiO3 nano-powder is uniformly scattered on the upper surface of the blank. The grinding tool is covered with a cover, heated to 220°C, and pressed at a pressure of 1 MPa for 20 min. After cooling to room temperature, the blank is taken out, and the BaTiO3 powder not adhered to the surface is removed. A live joint is used to install the rotating shaft at the center of the disc to obtain the friction catalytic driving disc 23.
[0121] C: Installation
[0122] The installation is performed according to the structure of the mortar disc integrated adsorption friction catalytic purifier to obtain the mortar disc integrated adsorption friction catalytic purifier.
[0123] Comparative Example 1
[0124] The materials of the upper and lower adsorption friction catalytic discs are ordinary ceramic products, and the rest are the same as the mortar disc integrated adsorption friction catalytic purifier in Example 1.
[0125] Comparative Example 2
[0126] The friction catalytic driving disc 23 is made of ordinary polytetrafluoroethylene material, and the rest are the same as the mortar disc integrated adsorption friction catalytic purifier in Example 1.
[0127] Comparative Example 3
[0128] If the drug permeation micropores of the permeation grinding pestle of the mortar disc integrated adsorption friction catalytic purifier are inclined or perpendicular to the pestle wall in the opposite direction of the rotation of the grinding mortar, some drug permeation micropores are easily blocked by fly ash or particulate matter in the soil, affecting uniform drug permeation and leading to uneven and insufficient extraction, or even unable to proceed.
[0129] Application Example 1
[0130] The mortar disc integrated adsorption friction catalytic purifiers in Examples 1-3 and Comparative Examples 1 and 2 are used to treat waste incineration fly ash
[0131] The mortar disc integrated adsorption friction catalytic purifier is used for detoxification and desalination treatment of household waste incineration fly ash. The household waste incineration fly ash is taken from a household waste incineration treatment plant in Shenyang, and the basic components are shown in Table 1.
[0132] The specific treatment process is: preparing 0.5 mol / L citric acid and 0.1 mol / L EDTA mixed solution as an extraction solution, closing all valves of the equipment, placing the extraction solution in the medicine storage tank 114 of the integrated mortar and pestle adsorption friction catalytic purifier, opening the medicine inlet valve 112, starting the pressure pump 113, so that the extraction solution enters the inner cavity of the medicine permeation and grinding pestle 11, and ensures that the extraction solution continuously and uniformly passes through the medicine permeation microporous 110 of the medicine permeation and grinding pestle to enter between the pestle and the mortar, opening the integrated mortar and pestle upper mill driving motor 1252, driving the integrated mortar and pestle upper mill 12 to rotate through the driving wheel 1251, the integrated mortar and pestle upper mill 12 drives the friction catalytic driving disc 23 to rotate synchronously through the rotating shaft 124, and the gap between the pestle and the mortar and the mortar mill pressure are adjusted through the elastic buffer 118;
[0133] The fly ash is taken to the hopper 122, under the action of the rotating grinding disc 12 and the pushing wing 111, the fly ash enters the gap between the pestle and the mortar, and is mixed with the extraction liquid, the mortar reaction forms a mixed liquid, and gradually continues to enter the discharge port 123. The grinding disc 12 continues to rotate, the mixed liquid is uniformly coated on the inner circle of the upper disc grinding surface under the action of the disc grinding guide ridge 1201 on the upper disc grinding surface 120 and the disc grinding guide groove 1301 on the lower disc grinding surface 130 of the lower disc grinding disc 13, and enters between the grinding disc 12 and the lower disc grinding disc 13. The liquid is further rubbed and reacted, and diffuses to the outer edge of the disc grinding surface; the vacuum pump 214 is opened, the filter friction catalytic adsorption purifier 2 is pumped, and the filter cloth is laid on the upper surface of the filter ring plate 21 through the laying device 216. When the liquid is pushed to the outer circle of the lower disc grinding surface 130 of the filter ring plate 21, the liquid enters the inner cavity of the filter friction catalytic adsorption purifier 2 through the filter cloth on the surface of the filter ring plate 21 under the action of the vacuum force; the friction pressure adjusting knob 26 is adjusted synchronously, so that the friction catalytic driving disc 23 drives the upper adsorption friction catalytic disc 22 and the lower adsorption friction catalytic disc 24 to rotate at a lower speed than the friction catalytic driving disc 23, and a speed difference is formed between the upper adsorption friction catalytic disc 22 and the friction catalytic driving disc 23, and the friction catalytic driving disc 23 and the lower adsorption friction catalytic disc 24. The filtrate passes through the filter ring plate 21, falls on the upper surface of the rotating upper adsorption friction catalytic disc 22, is distributed and diffused through the receiving diffusion groove 2211, the main stream is diffused and adsorbed through the micropores on the upper adsorption friction catalytic disc 22, and diffuses into the friction surface between the upper adsorption friction catalytic disc 22 and the friction catalytic driving disc 23. The friction catalytic is pushed by the lower surface adsorption diffusion groove 2221 and the upper friction diffusion groove 2311, diffuses to the outer edge of the friction catalytic driving disc 23, and enters the gap between the cavity wall of the filter friction catalytic adsorption purifier through the outer edge of the friction catalytic driving disc 23. Under the action of the lower friction diffusion groove 2321 of the lower friction catalytic surface 232 of the friction catalytic driving disc 23 and the upper surface diffusion groove 2411 of the lower adsorption friction catalytic disc 24, it enters between the friction catalytic driving disc 23 and the lower adsorption friction catalytic disc 24, continues to catalyze and adsorb, and the purified liquid enters the cavity of the filter friction catalytic adsorption purifier 2. When the liquid level in the cavity approaches the supporting net 25, the liquid valve 252 and the liquid pump 253 on the liquid discharge pipe are opened, and the treated extraction liquid is discharged into the collection tank 254; the working state of the mud scraper 215 is adjusted by the mud scraper adjusting knob 218, the dried solid filter cake is scraped and pushed to the mud collecting groove 211, and is discharged to the mud collecting tank through the mud discharge port 2111.
[0134] Meanwhile, the fly ash is treated by leaching method and ball milling leaching method as a control: the leaching method is that the same waste incineration fly ash and extraction liquid as the examples of the present application are taken in a proportion of 1:5, stirred and mixed uniformly, oscillated and leached at room temperature at 240 r / min for 1 h, and then separated by suction filtration to recover detoxified fly ash and extraction liquid respectively; the ball milling leaching method is that the same waste incineration fly ash and extraction liquid as the examples of the present application are taken in a proportion of 1:5, stirred and mixed uniformly, ball milled in a planetary ball mill at room temperature at 120 r / min for 1 h according to a ball-to-material ratio of 5:1, and then separated by suction filtration to recover detoxified fly ash and extraction liquid respectively.
[0135] According to the "Waste Incineration Fly Ash Pollution Control Technology Standard (Trial) (HJ 1134-2020)", atomic absorption spectrometry is used to determine the heavy metals in the waste incineration fly ash and the extraction liquid, and gas chromatography-mass spectrometry is used to determine dioxins. The results are shown in Tables 2 and 3. In order to reduce the influence of heavy metals contained in the residual extraction liquid in the solid after extraction, high-pressure filter method is used before solid analysis to deeply remove residual liquid, and then sample analysis is performed.
[0136] Table 1 Composition table of raw ash used in the examples (unit: %)
[0137] Component Calcium Potassium Sodium Chlorine Sulfur Silicon Iron Oxygen Aluminum Other Content 22.8 2.6 5.4 17.3 3.9 4.5 0.24 30.9 1.2 11.16
[0138] Table 2 Pollutant removal of waste incineration fly ash treated by the present application
[0139]
[0140] Table 3 Leaching liquid obtained from 1 kg of waste incineration fly ash treated by the present application and the pollutant content therein
[0141]
[0142]
[0143] As can be seen from the data in Tables 2 and 3, the mortar disc integrated adsorption and friction catalytic purifier of the present application for treating waste incineration fly ash has shorter time, higher removal rate of heavy metals, dioxins and chlorine, less extraction liquid required, less volume of recovered extraction liquid, significantly reduced content of heavy metals due to adsorption and purification, and significantly better dioxin decomposition rate than conventional ball milling method.
[0144] Application Example 2
[0145] Treatment of heavy metal and polycyclic aromatic hydrocarbon contaminated soil using the mortar disc integrated adsorption and friction catalytic purifier in Examples 1-3
[0146] In this embodiment, the soil sample is taken from the internal contaminated soil of a certain enterprise in Liaoning, the large particle materials such as stones, sticks and leaves are removed, naturally air-dried, the soil clumps are crushed with a wooden stick, and then sieved through a 50-mesh sieve. The 0.1 mol / L EDTA+2% Tween 80 mixed solution is used as the extraction solution, and the soil sample is treated by the mortar disc integrated adsorption and friction catalytic purifier of embodiments 1-3 under the same conditions as in application example 1.
[0147] In the experiment, the heavy metals selected for investigation are lead, cadmium, copper, zinc and nickel. Referring to “Heavy Metal Lead, Zinc, Cadmium, Copper, Nickel Contaminated Soil In-situ Remediation Technical Specification (HG / T 20713-2020) and Soil Environmental Quality Agricultural Soil Pollution Risk Control Standard (Trial) (GB 15618-2018)”, the heavy metal content in the soil before and after treatment is determined according to the standards “Determination of Copper, Zinc, Lead, Nickel and Chromium in Soil and Sediment by Flame Atomic Absorption Spectrophotometry (HJ 491-2019) and Determination of Lead and Cadmium in Soil Quality by Graphite Furnace Atomic Absorption Spectrophotometry (GB / T 17141-1997)”; the heavy metal content in the extraction solution is determined according to the standards “Determination of Copper, Zinc, Lead and Cadmium in Water by Atomic Absorption Spectrophotometry (GB 7475-1987) and Determination of Nickel in Water by Flame Atomic Absorption Spectrophotometry (GB / T 11912-1989)”; and the content of polycyclic aromatic hydrocarbons in the contaminated soil and the extraction solution is determined according to the standard “HJ 892-2017 Determination of Polycyclic Aromatic Hydrocarbons in Solid Waste by High Performance Liquid Chromatography”.
[0148] At the same time, the direct extraction method and the extraction + ball milling method are used for control experiments under the same conditions as in application example 1, with the ratio of extraction solution to soil being 5:1. The results are shown in Tables 4 and 5.
[0149] Table 4 Removal of pollutants from contaminated soil treated by the present application
[0150]
[0151]
[0152] Table 5 Leaching solution obtained by treating 1 kg of contaminated soil by the present application and the content of pollutants therein
[0153]
[0154] As can be seen from the data in Tables 4 and 5, the mortar disc integrated adsorption and friction catalytic purifier of the present application has shorter treatment time, higher removal rate of heavy metals and polycyclic aromatic hydrocarbons, less extraction solution required, smaller volume of recovered extraction solution, and significantly lower content of heavy metals due to adsorption and purification, and significantly better decomposition rate of polycyclic aromatic hydrocarbons than the conventional ball milling method.
[0155] The regeneration of the integrated adsorption friction catalytic purifier is as follows: when the filtering resistance of the filtering friction catalytic adsorption purifier 2 increases, the filter cloth is replaced; when the heavy metal content in the extracted solution increases, the upper and lower adsorption friction catalytic discs in the filtering friction catalytic adsorption purifier 2 need to be regenerated. The regeneration method is as follows: first, stop the equipment and drain the solution in the filtering friction catalytic adsorption purifier 2, close all valves, open the exhaust valve 213, pour 0.5 mol / L nitric acid solution into the elution regeneration agent tank 27, open the elution valve 272 and the elution pump 271, pump the elution solution into the cavity of the filtering friction catalytic adsorption purifier 2, so that the upper adsorption friction catalytic disc 22, the friction catalytic driving disc 23 and the lower adsorption friction catalytic disc 24 are all immersed in the elution solution, start the driving motor 1252 to drive the friction catalytic driving disc 23 to rotate, and then friction wash for 1-2 hours. Then, open the liquid discharge valve 252 and the liquid discharge pump 253 to drain the elution solution. Finally, pump clean water into the filtering friction catalytic adsorption purifier 2 through the elution regeneration agent tank 27 and the elution pump 271, and follow the same steps to wash the residual elution solution with water to complete the regeneration, so that the filtering friction catalytic adsorption purifier 2 can be used again.
Claims
1. A catalytic purifier of integrated adsorption and friction of a mortar disc, characterized in that, The integrated adsorption friction catalytic purifier comprises an integrated mortar and pestle (1) and a filter friction catalytic adsorption purifier (2). The integrated mortar and pestle (1) comprises a medicine-permeated grinding pestle (11), an upper grinding disc (12) and a lower grinding disc (13). The medicine-permeated grinding pestle (11) is a hollow columnar body with a circular head at the bottom. The circular head is provided with medicine-permeated micropores (110). The sidewall of the medicine-permeated grinding pestle (11) is provided with spiral descending pushing wings (111). The upper grinding disc (12) is a cylindrical body. A circular pit in the middle of the upper surface of the cylindrical body is a grinding mortar (121). The inner surface of the grinding mortar extends upward to form an integrated collecting hopper (122). The medicine-permeated grinding pestle (11) is arranged in the collecting hopper (122). The circular head of the medicine-permeated grinding pestle (11) cooperates with the grinding mortar (121) of the upper grinding disc (12) to form a grinding mortar extraction area. The lower grinding disc (13) is arranged below the upper grinding disc (12) to form a grinding reaction area. The filter friction catalytic adsorption purifier (2) is arranged below the lower grinding disc (13). The filter friction catalytic adsorption purifier (2) is provided with an upper adsorption friction catalytic disc (22), a friction catalytic driving disc (23), a lower adsorption friction catalytic disc (24) and a supporting net (25) from top to bottom. A rotating shaft (124) is fixed at the center of the upper grinding disc (12) and penetrates downward through the lower grinding disc (13) and the upper adsorption friction catalytic disc (22). The rotating shaft (124) is flexibly combined with the central axis of the friction catalytic driving disc (23). The driving wheel disc (125) arranged around the upper grinding disc (12) drives the lower grinding disc (13) and the friction catalytic driving disc (23) to rotate synchronously.
2. The integrated adsorptive friction catalyst purifier according to claim 1, wherein The medicine-permeated micropores (110) are a plurality of through holes arranged on the sidewall and the bottom of the lower part of the medicine-permeated grinding pestle (11). The through holes are inclined outward from the cavity to the rotating direction of the grinding mortar. The hole diameter is 0.01mm-0.5mm. The inclination angle is 10-90 degrees with the radial direction. The upper part of the hollow cavity of the medicine-permeated grinding pestle (11) is communicated with a medicine storage tank (114) through a medicine inlet pipe provided with a medicine inlet valve (112) and a pressure pump (113). A pressure gauge (115) is arranged on the medicine-permeated grinding pestle (11) to indicate the pressure in the cavity. The pressure is used to provide extraction liquid to the grinding mortar extraction area between the circular head of the medicine-permeated grinding pestle (11) and the grinding mortar (121). The upper part of the medicine-permeated grinding pestle (11) is fixed on an adjustable height cross beam (116). The cross beam (116) is fixed on the base of the filter friction catalytic adsorption purifier (2) through a support (117). An elastic buffer (118) is arranged between the cross beam (116) and the support (117) to change the friction pressure between the pestle and the mortar and make the medicine-permeated grinding pestle (11) have elastic buffering.
3. The integrated adsorptive friction catalyst purifier according to claim 1, wherein The upper surface of the integrated mortar and grinding disc (12) is provided with a grinding mortar (121) coaxial with the integrated mortar and grinding disc (12), the grinding mortar is raised around the periphery to form a collecting hopper (122), and the bottom of the grinding mortar is provided with a discharge port (123) offset from the center of the mortar bottom, the lower end of the discharge port is open to the upper disc grinding surface (120) to form a gradually expanding distribution chute (1231) in the opposite direction of rotation; the upper disc grinding surface (120) is provided with a plurality of disc grinding guide ridges (1201) radiating outward from the center, and the ridges are deflected 8-20 degrees in the opposite direction of rotation of the integrated mortar and grinding disc (12); the center of the upper disc grinding surface (120) of the integrated mortar and grinding disc (12) is provided with a rotating shaft (124) perpendicular to the upper disc grinding surface, and the integrated mortar and grinding disc (12) is provided with a driving wheel disc (125) around the periphery, which is driven by a driving wheel (1251) engaged with the driving wheel disc (125) and a driving motor (1252) to realize the rotation of the integrated mortar and grinding disc (12) along the rotating shaft (124).
4. The integrated adsorptive friction catalyst purifier according to claim 1, wherein The lower surface of the integrated mortar and grinding disc (12) is provided with a lower disc grinding disc (13), the upper surface of the lower disc grinding disc (13) is a circular lower disc grinding surface (130), the lower disc grinding surface (13) is provided with a plurality of disc grinding guide grooves (1301) radiating from the center of the circular surface to the periphery, and the grooves are deflected 8-60 degrees in the direction of rotation of the integrated mortar and grinding disc (12), the lower surface of the lower disc grinding disc (13) is a grinding disc friction surface (131), the grinding disc friction surface (131) is provided with a plurality of friction guide grooves (1311) radiating from the center to the periphery, and the grooves are deflected 8-60 degrees in the opposite direction of rotation of the integrated mortar and grinding disc (12); the lower disc grinding surface (130) is aligned and matched with the upper disc grinding surface (120), and the radius of the lower disc grinding surface (130) is smaller than that of the upper disc grinding surface (120), the outer circle of the lower disc grinding surface (130) is provided with a filter ring plate (21), the rotating shaft (124) of the integrated mortar and grinding disc (12) is arranged at the center of the lower disc grinding disc (13) through a bearing (1241), and the axis of the rotating shaft (124) is perpendicular to the upper disc grinding surface (120) and the lower disc grinding surface (130).
5. The integrated adsorptive friction catalyst purifier according to claim 1, wherein The filter friction catalytic adsorption purifier (2) is a tank-shaped pressure-resistant container arranged directly below the lower plate mill (13); the filter ring plate (21) for filtering is arranged at the outer circle of the lower plate mill surface (130) of the lower plate mill (13) and has an upper surface lower than the lower plate mill surface (130); the filter ring plate (21) is provided with a mud scraper (215) and a laying device (216) at the upper part corresponding to the filter ring plate (21); the mud scraper (215) and the laying device (216) can rotate with the mortar plate integrated upper mill (12); the height and working state are adjusted by the adjusting rod (217) and the mud scraping adjusting knob (218); the outer circle of the filter ring plate (21) is provided with a mud collecting groove (211); the outer circle of the mud collecting groove (211) is provided with a mud discharging port (2111); the upper part of the filter friction catalytic adsorption purifier (2) directly below the filter ring plate (21) is a ring-shaped cavity; the vacuum port (212) is arranged near the upper part of the side wall of the cavity; the pipeline provided with the air exhaust valve (213) is communicated with the vacuum pump (214); The upper adsorption friction catalytic disc (22) has a central upper adsorption friction catalytic disc through hole (220); the lower end of the rotating shaft (124) extends downward and is flexibly connected to the center of the friction catalytic driving disc (23) through the upper adsorption friction catalytic disc through hole (220); the flexible connection is that the friction catalytic driving disc (23) can rotate with the shaft and can move axially along the rotating shaft (124); the axis of the rotating shaft (124) is perpendicular to the plane where the upper adsorption friction catalytic disc (22), the friction catalytic driving disc (23) and the lower adsorption friction catalytic disc (24) are located; the friction pressure adjusting knob (26) is arranged on the wall of the lower part of the supporting net (25); The drain port (251) is arranged at the lowest part of the tank-shaped container of the filter friction catalytic adsorption purifier (2); the pipeline provided with the drain valve (252) and the drain pump (253) is communicated with the collecting groove (254); the elution regenerant tank (27) is arranged outside the filter friction catalytic adsorption purifier (2); the pipeline provided with the elution pump (271) and the elution valve (272) is communicated with the filter friction catalytic adsorption purifier (2).
6. The integrated adsorptive friction catalyst purifier according to claim 1, wherein The upper adsorption friction catalytic disc (22) is in a circular plate shape, and a plurality of receiving diffusion grooves (2211) radiating from the center to the circumference are uniformly arranged on the upper surface (221) of the upper adsorption friction catalytic disc, the receiving diffusion grooves (2211) gradually widen from the center to the circumference, and the middle part is deep and the two ends are shallow, the receiving diffusion grooves (2211) gradually and uniformly become shallow in the circumferential direction opposite to the rotation direction of the integrated mortar and upper grinding disc (12), forming a deflected fan-shaped diffusion surface, the total area of the receiving diffusion grooves (2211) accounts for 10-60% of the upper adsorption friction catalytic disc (22), the deepest part of the middle part of a single receiving diffusion groove (2211) accounts for 10-50% of the thickness of the upper adsorption friction catalytic disc (22), and the radially deepest middle part of the receiving diffusion groove (2211) is located directly below the junction of the filter ring plate (21) and the lower disc grinding surface (130); the receiving diffusion groove (2211) forms a circular arc-shaped receiving diffusion groove front guide groove (22111) on the side of the integrated mortar and upper grinding disc (12) in the rotation direction, the receiving diffusion groove front guide groove (22111) gradually and smoothly deflects in the rotation direction of the integrated mortar and upper grinding disc (12) from the center to the circumference in the radial direction, forming an arc, the concave side of the arc bends towards the rotation direction of the integrated mortar and upper grinding disc (12), and the chord cut angle of the arc of the receiving diffusion groove front guide groove (22111) is 6-90 degrees; The lower surface (222) of the upper adsorption friction catalytic disc is uniformly engraved with a plurality of arc-shaped lower surface adsorption diffusion grooves (2221) radiating from the center to the periphery, the depth gradually increases from the starting point on the center side to the end point in the circumferential direction, and the end is open to the circumference of the disc of the upper adsorption friction catalytic disc (22), the depth is 2%-50% of the thickness of the upper adsorption friction catalytic disc (22), the lower surface adsorption diffusion grooves (2221) of the upper adsorption friction catalytic disc (22) extend radially from the center to the periphery and deflect towards the rotation direction of the integrated mortar and upper grinding disc (12), the concave side of the arc faces the rotation direction of the integrated mortar and upper grinding disc (12), and the chord cut angle formed by the line connecting the two end points of the arc and the tangent line near the starting end of the center is 6-90 degrees; the receiving diffusion grooves (2211) on the upper surface of the upper adsorption friction catalytic disc (22) and the lower surface adsorption diffusion grooves (2221) are alternately and oppositely distributed.
7. The integrated adsorptive friction catalyst purifier according to claim 1, wherein The friction catalytic drive disk (23) is a disk set below the upper adsorption friction catalytic disk (22). The upper surface of the friction catalytic drive disk (23) is the upper friction catalytic surface (231), which is uniformly provided with multiple arc-shaped upper friction diffusion grooves (2311) that radiate outward from the center. The depth increases from shallow to deep from the starting point in the center direction to the ending point in the circumferential direction. The end opens on the circumference of the friction catalytic drive disk (23), and the depth is 2%-30% of the thickness of the friction catalytic drive disk (23). The upper friction diffusion grooves (2311) extend radially from the center and deflect in the opposite direction to the rotation of the integrated grinding disk (12). The concave side of the arc is in the opposite direction to the rotation of the integrated grinding disk (12). The line connecting the two ends of the arc is tangent to the starting end near the center. The tangential angle formed by the line is in the range of 6-90 degrees; the lower surface of the friction catalytic drive disk (23) is the lower friction catalytic surface (232), and multiple arc-shaped lower friction diffusion grooves (2321) are uniformly arranged from the center to the surrounding area. From the starting point in the direction of the center to the ending point in the direction of the circumference, the depth increases from shallow to deep. The end opens on the circumference of the friction catalytic drive disk (23), and the depth is 2%-30% of the thickness of the friction catalytic drive disk (23). The lower friction diffusion grooves (2321) extend radially from the center to the surrounding area and deflect towards the rotation direction of the grinding disk (12) integrated on the mortar. The concave side of the arc faces the rotation direction of the grinding disk (12) integrated on the mortar. The tangential angle formed by the line connecting the two ends of the arc and the tangent at the starting end near the center is in the range of 6-90 degrees.
8. The integrated adsorptive friction catalyst purifier according to claim 1, wherein Multiple arc-shaped diffusion grooves (2411) are uniformly arranged on the upper surface (241) of the lower adsorption friction catalytic disk, radiating outward from the center. The depth increases from shallow to deep from the starting point in the center direction to the ending point in the circumferential direction. The end opens on the circumference of the lower adsorption friction catalytic disk (24), and the depth is 2%-30% of the thickness of the lower adsorption friction catalytic disk (24). The diffusion grooves (2411) extend radially from the center to the surrounding area and deflect in the opposite direction to the rotation of the integrated grinding disk (12) of the mortar. The concave side of the arc rotates in the opposite direction to the rotation of the integrated grinding disk (12) of the mortar. The tangential angle formed by the line connecting the two ends of the arc and the tangent at the starting end near the center ranges from 6 to 90 degrees.
9. The preparation method of the integrated adsorption-friction catalytic purifier according to any one of claims 1-8, characterized in that, The preparation of the upper adsorption triboelectric catalytic disk (22), the lower adsorption triboelectric catalytic disk (24), and the triboelectric catalytic driving disk (23) is as follows: A: The preparation methods of the upper adsorption friction catalytic disk (22) and the lower adsorption friction catalytic disk (24) are as follows: (I) according to the molar ratio, calcium: titanium = 1:1, take calcium salt and titanium salt, preparation of calcium titanate sol, according to the mass ratio of calcium titanate contained in calcium titanate sol and activated carbon is 1:(2-10), take activated carbon, immerse the activated carbon in the calcium titanate sol, placed in a vacuum container can be heated, vacuum to relative pressure reached-0.09MPa, pressure 30-60min, continue to vacuum conditions, heating to increase the temperature of vacuum container to calcium titanate sol boiling, volatilization concentrated to calcium titanate sol into gel, restore atmospheric pressure, at 105-125℃ continue to dry, again at 450-800℃ in the absence of air calcination 3-6h, cooling to room temperature, get loaded calcium titanate activated carbon; (II) according to the mass ratio, loaded calcium titanate activated carbon: barium titanate powder is (1-5):1, mix the loaded calcium titanate activated carbon and barium titanate powder, ball milling to pass through 500 mesh screen, ultrasonic dispersion in the ethanol solution containing 0.01-0.2% of polyvinyl alcohol, prepared into a mixed suspension liquid with solid content of 1-20%; (III) take porous ceramic round piece, porosity 15-85%, pore size 50-1000μm, processing into the required shape and size, in the 1%-6% of sodium hydroxide solution, soaking activation, aeration extraction 10-60min, washing to near neutral, drying, immersed in the mixed suspension liquid obtained in step (II), placed in a pressure vessel, under the condition of ultrasonic oscillation, synchronous vacuum to relative pressure-0.09MPa, stop ultrasonic oscillation, pressure standing 30-60min, restore atmospheric pressure, again to 0.5-2MPa, standing 30-60min, slowly restore atmospheric pressure, take out the porous ceramic round piece, 80-105℃ drying, again take the mixed suspension liquid obtained in step (II) evenly drop on it, until adsorption saturation, again 80-105℃ drying, repeat the process of drop and drying until it can't be absorbed, after drying, isolated from air, heating to 280-290℃ at the rate of 1-3℃ / min, holding 30-60min, continue to heat to 500-800℃ at the rate of 3-5℃ / min, holding carbonization 3-6h, cooling to room temperature, placed in the activation furnace, 800-1000℃, pass in the supersaturated water vapor, activation 20-60min, cooling to room temperature, drying, get adsorption and friction catalytic disc; (IV) according to the corresponding setting of the required diffusion groove of the upper adsorption and friction catalytic disc (22) and the lower adsorption and friction catalytic disc (24), get the upper adsorption and friction catalytic disc (22) and the lower adsorption and friction catalytic disc (24); B: the preparation method of friction catalytic drive disc (23) is: take polytetrafluoroethylene material, processing into the required shape and size, use coarse sandpaper to polish the surface, get polytetrafluoroethylene blank; The BaTiO3 nanopowder is immersed in a sodium hydroxide solution with a mass percentage concentration of 5-10%, ultrasonic treatment is performed for 30-60 min, soaking is performed for 24 h or more, centrifugal separation is performed, water washing of the barium titanate is performed until near neutral, a polyethylene glycol PEG-4000 ethanol solution with a mass percentage concentration of 0.1%-0.5% is added, ultrasonic treatment is performed until uniform dispersion, a barium titanate suspension is obtained, the barium titanate-coated blank is uniformly coated on the surface of a polytetrafluoroethylene blank, and ethanol is removed by volatilization to obtain a blank coated with barium titanate; A grinding tool with the same shape as the friction catalytic driving disc (23) is taken, a layer of barium titanate nanopowder is laid in the grinding tool, the blank coated with barium titanate is placed in the grinding tool, a layer of barium titanate nanopowder is uniformly scattered on the upper surface of the blank, the upper cover of the grinding tool is added, the grinding tool is heated to 220-260°C, a pressure of 1-5 MPa is synchronously applied, and the blank is molded for 20-30 min, the blank is cooled to room temperature, the blank is taken out, and the barium titanate powder not adhered to the surface is removed, a live joint is used to install a rotating shaft at the center of the disc, and the friction catalytic driving disc (23) is obtained; C: installation The installation is performed according to the structure of the integrated adsorption friction catalytic purifier, and the integrated adsorption friction catalytic purifier is obtained.
10. Use of the integrated adsorptive friction catalyst purifier according to any one of claims 1 to 8, characterized in that, The application method is as follows: The extraction liquid is prepared, all valves of the equipment are closed, the extraction liquid is placed in the medicine storage tank (114) of the integrated adsorption friction catalytic purifier, the medicine inlet valve (112) is opened, the pressure pump (113) is started, the extraction liquid is allowed to enter the inner cavity of the medicine permeation and grinding pestle (11), and the extraction liquid is allowed to continuously and uniformly pass through the medicine permeation micropores (110) of the medicine permeation and grinding pestle and enter between the pestle and the mortar, the driving motor (1252) of the integrated mortar is opened, the upper grinding disc (12) of the integrated mortar is driven to rotate through the driving wheel (1251), the friction catalytic driving disc (23) is synchronously driven to rotate through the rotating shaft (124) of the upper grinding disc (12), and the gap between the pestle and the mortar and the mortar grinding pressure are adjusted through the elastic buffer (118); The waste incineration fly ash or contaminated soil is put into the collecting hopper (122) after being screened through a 50-mesh screen, and under the action of the rotating mortar disc integrated grinding disc (12) and the pushing wing (111), the fly ash or contaminated soil enters the gap between the pestle and the mortar and is mixed with the extraction liquid, the mortar is reacted to form a mixed liquid which continuously enters the discharge port (123). The mortar disc integrated grinding disc (12) continuously rotates, and the mixed liquid is uniformly coated on the inner circle of the upper disc grinding surface through the distribution chute (1231), and under the action of the disc grinding guide ridge (1201) on the upper disc grinding surface (120) and the disc grinding guide groove (1301) on the lower disc grinding surface (130) of the lower disc grinding disc (13), the mixed liquid enters between the mortar disc integrated grinding disc (12) and the lower disc grinding disc (13), and the liquid is further rubbed and reacted and diffused to the outer edge of the disc grinding surface. At the same time, the air suction valve (213) is opened, the vacuum pump (214) is started, the filter friction catalytic adsorption purifier (2) is vacuumized, the filter ring plate (21) is laid with a ring-shaped filter cloth through the laying device (216), and when the liquid is pushed to flow to the outer circle of the lower disc grinding surface (130) of the filter ring plate (21), the liquid enters the inner cavity of the filter friction catalytic adsorption purifier (2) through the filter cloth on the surface of the filter ring plate (21) under the action of the vacuum force. At the same time, the friction pressure adjusting knob (26) is adjusted, so that the friction catalytic driving disc (23) drives the upper adsorption friction catalytic disc (22) and the lower adsorption friction catalytic disc (24) to rotate at a lower speed than the friction catalytic driving disc (23), and a speed difference is formed between the upper adsorption friction catalytic disc (22) and the friction catalytic driving disc (23) and the friction catalytic driving disc (23) and the lower adsorption friction catalytic disc (24). The filtrate passing through the filter ring plate (21) falls on the upper surface of the rotating upper adsorption friction catalytic disc (22), is distributed and diffused through the receiving diffusion groove (2211), the main stream is diffused and adsorbed through the micropores on the upper adsorption friction catalytic disc (22), and diffuses into the friction surface between the upper adsorption friction catalytic disc (22) and the friction catalytic driving disc (23). The friction catalysis is promoted by the lower surface adsorption diffusion groove (2221) and the upper friction diffusion groove (2311), diffuses to the outer edge of the friction catalytic driving disc (23), and enters the gap between the friction catalytic driving disc (23) and the lower adsorption friction catalytic disc (24) through the outer edge of the friction catalytic driving disc (23). Under the action of the lower friction diffusion groove (2321) of the lower friction catalytic surface (232) of the friction catalytic driving disc (23) and the upper surface diffusion groove (2411) of the lower adsorption friction catalytic disc (24), the liquid enters between the friction catalytic driving disc (23) and the lower adsorption friction catalytic disc (24), continues to be friction catalyzed, and is diffused and adsorbed in the micropores of the lower adsorption friction catalytic disc (24). The purified liquid enters the cavity of the filter friction catalytic adsorption purifier (2), and when the liquid level in the cavity approaches the supporting net (25), the liquid discharge valve (252) and the liquid discharge pump (253) on the liquid discharge pipe are opened, and the treated extraction liquid is discharged into the collecting tank (254).The working state of the mud scraper (215) is adjusted by the mud scraper adjusting knob (218) to push the dried solid filter cake to the mud collecting groove (211) and discharge to the mud collecting tank through the mud discharge port (2111).
Citation Information
Patent Citations
Method of combined ultrasonic wave and surfactant to remediate ddts polluted soil
CN104785516B
Heavy metal contaminated soil remediation equipment and remediation process thereof
CN105268737A
Device and method for recycling ex-site chemical elution-remediating eluate for heavy metal contaminated soil
CN105964670A
Treatment device for heavy metal polluted soil and treatment process thereof
CN106077060A
Feeding, slurry making and grading recovery system for soil washing remediation
CN106975652A