A mortar disc integrated adsorption friction catalytic purifier, its manufacturing method and application

Abstract

A kind of mortar disc integrated adsorption friction catalytic purifier and its manufacturing method and application belong to environmental technology field.The mortar disc integrated adsorption friction catalytic purifier includes mortar disc integrated mill and filter friction catalytic adsorption purifier, the round head of the medicine permeation grinding pestle in mortar disc integrated mill and the millstone of mortar disc integrated upper millstone match, the lower millstone of mortar disc integrated upper millstone is provided with lower millstone.The filter friction catalytic adsorption purifier is arranged below lower millstone;Filter friction catalytic adsorption purifier is provided with upper adsorption friction catalytic disc, friction catalytic drive disc, lower adsorption friction catalytic disc and supporting net from top to bottom.The mortar disc integrated adsorption friction catalytic purifier combines mechanical cracking mortar mill, disc mill and medicine permeation, maximizes cracking extraction purification capacity, improves medicine use efficiency and reduces energy consumption;Filter separation, friction catalysis and adsorption enrichment are combined, heavy metal in extraction liquid is simultaneously broken up and adsorbed, and heavy metal and refractory organic pollutants in fly ash or soil are removed.

Description

Technical Field

[0001] This invention belongs to the field of environmental technology and relates to an integrated adsorption friction catalytic purifier with mortar and disc, its manufacturing method and application, especially its application in the purification of harmful substances in fly ash from waste incineration or the remediation of contaminated soil. Background Technology

[0002] Incineration, with its advantages of thorough treatment and heat recovery, has become the mainstream method for municipal solid waste treatment. However, the incineration process produces a large amount of fly ash, which contains soluble salts such as sodium, potassium, chloride, and sulfate, as well as heavy metals such as lead and cadmium, and toxic and harmful substances such as dioxins. Fly ash is classified as hazardous waste. The treatment and disposal of fly ash has become a key issue restricting the incineration of municipal solid waste (Ma Yi, Zheng Rendong, Zhou Zhihao, et al. Bottlenecks in the treatment and application of fly ash disposal technology for municipal solid waste incineration [J]. Environmental Engineering, 2022, 40(05): 237-243.).

[0003] Soil pollution is directly related to human food safety. Soil contaminated with heavy metals and persistent organic pollutants is difficult to clean itself and requires treatment to restore its function (Chen Yanjun, Zhang Huaihui, Ma Zuhong, et al. Current status and remediation measures of farmland soil pollution in my country [J]. China Resources Comprehensive Utilization, 2025, 43(02): 139-142; Liu Tong, Yang Liqiong, Shi Yanan, et al. Comprehensive analysis of site soil remediation technology in my country [J / OL]. Journal of Ecology, 1-19 [2025-04-12].).

[0004] Leaching and extraction purification is the most effective method for treating incineration fly ash and contaminated soil. This method can effectively remove harmful substances such as heavy metals and recover useful components (Li Bo. Research on heavy metal leaching and electrochemical recovery of heavy metals in fly ash [D]. Zhejiang University, 2024.; Tan Xuejun, Xiang Jiajia, Yin Yao, et al. Research progress on combined enhanced leaching remediation technology for heavy metal contaminated soil [J]. Environmental Sanitation Engineering, 2022, 30(04):74-82.; Jia Zhiqing. Research on leaching remediation technology for heavy metal contaminated soil [J]. Shanxi Chemical Industry, 2024, 44(10):228-229.). However, some harmful substances in waste incineration fly ash are encased in molten particles, and a large part of pollutants in contaminated soil are also encased in soil particles. Traditional leaching and extraction methods cannot quickly and completely extract these pollutants effectively.

[0005] Mechanochemistry is a technology that has attracted attention in recent years. It has been applied to the treatment of solid waste such as fly ash from waste incineration by coupling mechanical force and chemical reaction (Chen Zhiliang. Mechanism Study on Degradation of Dioxins and Co-stabilization of Heavy Metals in Waste Incineration Fly Ash by Mechanochemistry [D]. Zhejiang University, 2019). Deng Yuequan et al. (2023103745481 A Method for Removing Heavy Metals from Waste Incineration Fly Ash by EDTA Ball Milling) used a combination of reagents and ball milling to remove heavy metals from waste incineration fly ash; Zhang Houhu et al. also... Ball milling was used to treat and purify dioxins in fly ash (2023104554903 Treatment device for removing dioxins from fly ash of municipal solid waste incineration using a ball mill); Zhou Feifei et al. (202410943538X A method and system for the full resource utilization of fly ash from municipal solid waste incineration) used a dioxin removal device, a screening ball mill device, a water washing dechlorination device, a sedimentation device, a solid-liquid separation device, a hydrothermal curing brick-making device, a heavy metal removal device, and an evaporative freeze crystallization device to treat and purify fly ash. There are also reports combining mechanochemical processes with water washing and high-temperature treatment (Wang Wenxia et al., 2020115603990: An integrated wet grinding and high-temperature treatment method for waste incineration fly ash; Zhang Ning et al., 2021109592739: A novel dioxin removal system and method for waste incineration fly ash; 2023105731977: An eluent and method for wet grinding and washing away heavy metals in waste incineration fly ash). However, the equipment and processes for these methods are all very complex.

[0006] Mechanochemical methods have also been applied in the remediation of soils contaminated with heavy metals and recalcitrant organic matter (Zhang Shihao. Experimental study on the remediation of PCB77 contaminated soil by dielectric barrier discharge and planetary ball mill [D]. Zhejiang University, 2024.; Li Xue. Study on the degradation of hexachlorobenzene in soil by mechanochemical method and its mechanism [D]. Southeast University, 2021.); Zhao Lin et al. (A compound leaching agent and its optimized method for the remediation of heavy metal contaminated saline-alkali soil, application number 201910872687.0) disclosed a compound leaching agent and the remediation of heavy metal contaminated saline-alkali soil by the compound leaching agent. The optimized method involves first air-drying the soil contaminated with heavy metals and then grinding it through a 10-mesh sieve. The soil sample after sieving is then leached. Xiao Yuanlong et al. (A Heavy Metal Contaminated Soil Remediation Equipment and its Remediation Process, Application No. 201510775253.0) used a system equipped with a crushing roller, ball mill, separation sieve, primary washing tank, linear vibrating screen, mud buffer tank, slurry pump, centrifuge, deep leaching tank, belt filter press, and secondary washing tank. The contaminated soil underwent mechanical grinding, primary washing, primary solid-liquid separation, deep leaching, secondary washing, and secondary solid-liquid separation for remediation treatment. Chen Qing et al. (A method for remediating cadmium-contaminated soil using symbiotic leaching, application number 201711471283.8) used symbiotic leaching to remediate cadmium-contaminated soil. Highly cadmium-contaminated soil was mixed with water and zinc salts, crushed, and ground to obtain a fine soil slurry. This slurry was then left to stand on a filter screen and pressed, allowing cadmium ions to separate along with the zinc salts. Alkali solution was then added for further filtration, and the zinc salts were reused with the filtrate, achieving the goal of cadmium removal from the soil. Cui Shuangchao et al. (A feeding, slurry preparation, and graded recovery system for soil leaching remediation, application number 201710249334.6) used a crushing and screening module, a feeding and slurry preparation module, and a leaching particle size separation module. This overcame the problem of screen clogging due to uneven feed particle size in existing technologies, and solved the matching problem between the soil particle size and the equipment, as well as the secondary pollution problem in the pretreatment process of contaminated soil. Zhong Rubo et al. (Application No. 201610522057.7) used a dry drum screen, grinding mill, wet drum screen, and two-stage leaching reaction to recover the leaching liquid. Then, a complex treatment process was employed, including neutralization, electrocoagulation, aerated oxidation tank, diatomaceous earth circulation clarification, and pH adjustment tank, to treat sites with high pollution concentrations and significant risks. Yi Xiangzhuo et al. (Application No. 201610106879.7) disclosed a heavy metal contaminated soil treatment device, which uses a frame, feed hopper, crushing roller, ball mill, separation screen, primary washing tank, linear vibrating screen, mud buffer tank, slurry pump, centrifuge, deep leaching tank, belt filter press, and secondary washing tank. The contaminated soil underwent mechanical grinding, primary washing, primary solid-liquid separation, deep leaching, secondary washing, and secondary solid-liquid separation for remediation.Xiao Pengfei et al. (Method for combined remediation of DDTs-contaminated soil using ultrasound and surfactants, application number 201510252908.6) used ultrasound and surfactants to remediate DDTs-contaminated soil. Chen Zexin (A method for remediation of heavy metal-contaminated soil, application number: 2019101198506) disclosed a new soil remediation method: soil that has been cleaned of impurities is fed into a heavy metal-contaminated soil remediation device through the inlet. Simultaneously, a drive motor is started, which drives a rotating shaft to rotate. The shaft then rotates the grinding blocks and guide blocks, causing the column to rotate the blades, initially crushing the soil and increasing the feeding rate. Furthermore, it integrates soil crushing, screening, and leaching, improving the efficiency of soil remediation. Zou Min (Zou Min, A leaching remediation device for heavy metal-contaminated soil, application number 201921032086.0) used a grinding structure to achieve the function of soil pulverization.

[0007] These technologies, whether for treating fly ash from waste incineration or remediating contaminated soil, require complex processes involving disintegration, extraction, and separation, which must be completed in separate steps. Furthermore, disintegration often relies on ball milling as a mechanical means, resulting in high energy consumption. Even when other grinding and pulverizing technologies are used, they are merely for pulverizing materials. Treatment of heavy metals and organic pollutants is generally carried out separately, involving various types of processes and equipment with complex structures. In particular, while extracts using complexing agents can improve extraction rates, the direct addition of these agents leads to high consumption and large volumes of extract. Moreover, the extracted heavy metals complex with the complexing agent, making recovery and further treatment difficult, requiring multiple steps such as complex breaking and separation, resulting in complex processes, high processing difficulty, and high costs. Summary of the Invention

[0008] To address the problems of low heavy metal extraction efficiency, poor pollutant purification capacity, complex processes and equipment, need for further treatment of the extract, high consumption of extraction reagents, and high energy consumption in the detoxification and purification of waste incineration fly ash or the remediation of contaminated soil, this invention provides an integrated mortar and disc adsorption friction catalytic purifier, its manufacturing method, and its application. This purifier combines mechanical crushing with mortar and disc milling and permeation dosing to maximize the crushing, extraction, and purification capacity, improve reagent utilization efficiency, and reduce energy consumption. It combines filtration separation, friction catalysis, and adsorption enrichment to simultaneously break down complexes and adsorb and purify heavy metals in the extract, removing heavy metals and recalcitrant organic pollutants from municipal solid waste incineration fly ash or soil, and recovering useful components.

[0009] This invention provides an integrated mortar and disc adsorption friction catalytic purifier, which is a deep purification processor that continuously breaks down and extracts heavy metals trapped in fly ash or soil particles, mechanically and chemically extracts and decomposes organic pollutants, and simultaneously adsorbs and decomposes them through friction catalytic complex breaking and adsorption. It includes an integrated mortar and disc mill and a filter friction catalytic adsorption purifier.

[0010] The integrated grinding mill includes a grinding pestle, an upper grinding disc, and a lower grinding disc. The grinding pestle is a hollow cylindrical body with a round bottom head, and the round head is provided with micropores for grinding. The grinding pestle has spirally descending pusher wings on its side wall. The upper grinding disc is a flat cylindrical body with a circular bottom, which is the grinding surface of the upper disc. The circular pit in the middle of the upper surface of the cylindrical body is the grinding mortar. The inner surface of the grinding mortar extends upward to form an integrated collection hopper. The grinding pestle is placed in the collection hopper, and its round head cooperates with the grinding mortar of the upper grinding disc to form the grinding extraction zone. The lower grinding disc is set below the upper grinding disc to form the grinding reaction zone.

[0011] The filter friction catalytic adsorption purifier is located below the lower grinding disc; inside the filter friction catalytic adsorption purifier, from top to bottom, there is an upper adsorption friction catalytic disc, a friction catalytic drive disc, a lower adsorption friction catalytic disc, and a support mesh; the rotating shaft fixed to the center of the upper grinding disc of the integrated mortar and mortar plate passes through the lower grinding disc and the upper adsorption friction catalytic disc downwards, and is flexibly combined with the central axis of the friction catalytic drive disc. The lower grinding disc and the friction catalytic drive disc are driven to rotate synchronously through the drive wheels set around the upper grinding disc of the integrated mortar and mortar plate.

[0012] Preferably, the micropores are located on the side wall and bottom round head of the lower part of the grinding pestle. They are multiple through holes that penetrate the pestle wall and are inclined outward from the cavity towards the direction of rotation of the grinding mortar. The diameter of the holes is 0.01mm-0.5mm, and the inclination angle is 10-90 degrees with the radial direction. The upper part of the hollow cavity of the grinding pestle is connected to the storage tank through a drug inlet pipe equipped with a drug inlet valve and a pressure pump. A pressure gauge is installed on the grinding pestle to indicate the pressure in the cavity. The pressure is used to supply extractant to the grinding extraction zone between the round head of the grinding pestle and the grinding mortar through the micropores. The upper part of the grinding pestle is fixed on an adjustable height crossbeam. The crossbeam is fixed to the base of the filter friction catalytic adsorption purifier by a bracket. The crossbeam and the bracket are connected by an elastic buffer with an adjustable crossbeam height to change the friction pressure between the pestle and the grinding mortar, while also giving the grinding pestle elastic buffer.

[0013] Preferably, the lower surface of the integrated grinding disc is a flat, circular grinding surface. A grinding mortar is provided on the integrated grinding disc, with its bottom coaxial with the grinding disc. The grinding mortar is raised around its perimeter to form a hopper. A discharge port is located at the bottom of the grinding mortar, offset from the center of the mortar bottom. The lower end of the discharge port opens onto the grinding surface of the grinding disc, forming a material distribution groove that gradually spreads in the opposite direction of rotation. Multiple grinding guide ridges radiating outward from the center are provided on the grinding surface of the grinding disc, with the ridges deflected radially in the opposite direction of rotation of the integrated grinding disc by 8-20 degrees. A rotating shaft perpendicular to the grinding surface of the grinding disc is located at the center of the grinding surface of the integrated grinding disc. A drive wheel is provided around the integrated grinding disc, and the rotation of the integrated grinding disc along the rotating shaft is achieved by the drive wheel meshing with the drive wheel and its drive motor.

[0014] Preferably, a lower grinding disc is provided directly below the upper grinding surface of the integrated grinding disc. The upper surface of the lower grinding disc is a circular grinding surface, and multiple grinding guide grooves are provided on the lower grinding surface, radiating outward from the center of the circular surface. The grooves are radially deflected upward in the direction of rotation of the integrated grinding disc. The lower surface of the lower grinding disc is the grinding disc friction surface, and multiple friction guide grooves are provided on the grinding disc friction surface, radiating outward from the center of the circular surface. The grooves are radially deflected upward in the opposite direction of rotation of the integrated grinding disc. The lower grinding surface is aligned and fitted with the upper grinding surface, and the radius of the lower grinding surface is smaller than that of the upper grinding surface. A filter ring plate is provided on the outer ring of the lower grinding surface. The rotating shaft of the integrated grinding disc is set at the center of the lower grinding disc through a bearing, and the axis of rotation of the rotating shaft is perpendicular to both the upper and lower grinding surfaces.

[0015] The friction catalytic adsorption purifier is a tank-shaped pressure-resistant container integrated with the lower grinding disc, located directly below it. The filter ring plate, responsible for filtration, is positioned on the outer ring of the lower grinding disc's surface, with its upper surface not exceeding the surface of the lower grinding disc. A sludge collection trough is located around the outer ring of the filter ring plate, and a sludge discharge port is located around the outer ring of the sludge collection trough. A ring-shaped cavity is located directly below the filter ring plate and at the top of the purifier. A vacuum port is located near the upper side wall of the cavity, connected to a vacuum pump via a pipe equipped with a vacuum valve. Inside the purifier, from top to bottom, are an upper adsorption friction catalytic disc, a friction catalytic drive disc, a lower adsorption friction catalytic disc, and a support mesh. The upper adsorption friction catalytic disc has a through-hole at its center, and the lower end of the rotating shaft extends downwards, flexibly connecting to the friction catalytic disc through the through-hole. At the center of the catalytic drive disk, the flexible connection allows the friction catalytic drive disk to rotate with the shaft and move axially along the shaft; the shaft axis is perpendicular to the plane containing the upper adsorption friction catalytic disk, the friction catalytic drive disk, and the lower adsorption friction catalytic disk; a friction pressure adjustment knob is provided on the lower part of the support mesh wall; a drain port is provided at the lowest point of the bottom of the tank-shaped container of the filter friction catalytic adsorption purifier, which is connected to the collection tank through a pipe with a drain valve and a drain pump; an elution regeneration agent tank is provided outside the filter friction catalytic adsorption purifier, which is connected to the filter friction catalytic adsorption purifier through a pipe with an elution pump and an elution valve; a scraper and a spreader are provided on the upper part of the filter ring plate, which can rotate with the grinding disc integrated with the mortar, and their height and working status can be adjusted by adjusting the scraper adjustment knob using the adjustment rod.

[0016] Furthermore, the lower end of the grinding pestle is fitted with the grinding mortar, and the gap gradually decreases from top to bottom. The width of the spiral pusher blade of the grinding pestle also decreases accordingly. The outer edge of the pusher blade fits with the grinding mortar wall, and the upper grinding surface fits with the lower grinding surface. The size of the gap between the lower end of the grinding pestle and the grinding mortar, as well as the grinding pressure, can be adjusted by adjusting the height of the crossbeam through the elastic buffer, i.e., adjusting the height of the grinding pestle.

[0017] Furthermore, the upper adsorption friction catalytic disk is circular. Multiple receiving and diffusion grooves radiating from the center to the circumference are evenly arranged on the upper surface of the upper adsorption friction catalytic disk. The receiving and diffusion grooves gradually widen radially from the center to the circumference, becoming deeper in the middle and shallower at both ends. An arc-shaped guide groove is formed on the side of the grinding disc integrated with the mortar. The guide groove radially deflects smoothly from the center to the circumference towards the rotation direction of the grinding disc integrated with the mortar, forming an arc shape. The concave side of the arc curves towards the rotation direction of the grinding disc integrated with the mortar. The receiving and diffusion grooves gradually and uniformly become shallower in the opposite direction of rotation towards the grinding disc integrated with the mortar, forming a deflected fan-shaped diffusion surface. The total area of ​​the receiving and diffusion grooves accounts for 10-60% of the upper adsorption friction catalytic disk, and the deepest part of a single receiving and diffusion groove accounts for 10-50% of the thickness of the upper adsorption friction catalytic disk. The tangential angle of the guide groove arc is 6-90 degrees. The deepest radial part of the receiving diffusion groove is located directly below the junction of the filter ring plate and the grinding surface of the lower plate. The lower surface of the upper adsorption friction catalytic disk is uniformly engraved with multiple arc-shaped lower surface adsorption diffusion grooves radiating from the center to the surrounding area. From the starting point on the center side to the end point in the circumferential direction, the depth increases from shallow to deep. The end opens at the circumference of the upper adsorption friction catalytic disk, and the depth is 2%-50% of the thickness of the adsorption friction catalytic disk. The lower surface adsorption diffusion grooves of the upper adsorption friction catalytic disk extend radially from the center to the surrounding area and deflect towards the rotation direction of the upper grinding disk integrated with the mortar. The concave side of the arc faces the rotation direction of the upper grinding disk integrated with 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 6-90 degrees. The receiving diffusion grooves on the upper surface of the upper adsorption friction catalytic disk and the adsorption diffusion grooves on the lower surface are not aligned vertically and are alternately distributed.

[0018] Furthermore, the friction catalytic drive disk is a disc positioned below the upper adsorption friction catalytic disk. The upper surface of the friction catalytic drive disk has multiple arc-shaped upper friction diffusion grooves uniformly arranged on the upper friction catalytic surface, radiating outwards from the center. From the starting point in the central direction to the ending point in the circumferential direction, the depth increases from shallow to deep, with the ends opening at the circumference of the friction catalytic drive disk. The depth is 2%-30% of the thickness of the friction catalytic drive disk. The upper friction diffusion grooves extend radially from the center outwards and deflect in the opposite direction to the rotation of the integrated grinding disc on the mortar. The concave side of the arc faces the opposite direction to the rotation of the integrated grinding disc on the mortar. The line connecting the two ends of the arc is tangent to the starting point near the center. The tangential angle of the formed chord is in the range of 6-90 degrees; the lower surface of the friction catalytic drive disk is the lower friction catalytic surface, which is uniformly provided with multiple arc-shaped lower friction diffusion grooves that radiate outward from the center. 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, and the depth is 2%-30% of the thickness of the friction catalytic drive disk. The lower friction diffusion grooves extend radially from the center to the surrounding area and deflect towards the rotation direction of the grinding disk on the integrated mortar. The concave side of the arc faces the rotation direction of the grinding disk on the integrated 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.

[0019] Furthermore, multiple arc-shaped diffusion grooves radiating outwards from the center are uniformly arranged on the upper surface of the lower adsorption friction catalytic disk. The depth increases from shallow to deep from the starting point in the center direction to the ending point in the circumferential direction, and the end opens at the circumference of the lower adsorption friction catalytic disk. The depth is 2%-30% of the thickness of the lower adsorption friction catalytic disk. The diffusion grooves on the upper surface of the lower adsorption friction catalytic disk extend radially from the center to the surrounding areas, deflecting in the opposite direction to the rotation of the grinding disk on the integrated mortar. The concave side of the arc faces in the opposite direction to the rotation of the grinding disk on the integrated 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. The lower surface of the lower adsorption friction catalytic disk is a flat porous surface.

[0020] The supporting mesh is a corrosion-resistant steel metal mesh with a aperture range of 1-10mm, and is positioned above the opening of the drain pipe.

[0021] Furthermore, the upper surface of the upper adsorption friction catalytic disk is frictionally matched with the friction surface of the grinding disk, and the lower surface of the upper adsorption friction catalytic disk is frictionally matched with the upper friction catalytic surface of the friction catalytic drive disk; the lower friction catalytic surface of the friction catalytic drive disk is frictionally matched with the upper surface of the adsorption friction catalytic disk.

[0022] The preparation method of the integrated adsorption-friction catalytic purifier of the present invention includes the following steps:

[0023] A: The preparation methods for the upper adsorption friction catalytic disk and the lower adsorption friction catalytic disk are as follows:

[0024] (I) Take calcium salt and titanium salt in a molar ratio of 1:1 to prepare calcium titanate sol. Take activated carbon in a ratio of 1:(2-10) of calcium titanate mass to activated carbon mass in the calcium titanate sol. Immerse the activated carbon in the calcium titanate sol and place them together in a heatable vacuum container. Vacuum the container until the relative pressure reaches -0.09 MPa and maintain the pressure for 30-60 minutes. Under continuous vacuum conditions, heat the container until the calcium titanate sol boils. Volatilize and concentrate the calcium titanate sol until it transforms into a gel. Return to normal pressure and continue drying at 105-125℃. Then calcine at 450-800℃ in the absence of air for 3-6 hours. Cool to room temperature to obtain calcium titanate-loaded activated carbon.

[0025] (ii) The ratio of calcium titanate-loaded activated carbon to barium titanate powder is (1-5):1 by mass. The calcium titanate-loaded activated carbon and barium titanate powder are mixed and ball-milled until they can pass through a 500-mesh sieve. The mixture is then ultrasonically dispersed in an ethanol solution containing 0.01-0.2% polyvinyl alcohol by mass to prepare a mixed suspension with a solid content of 1-20%.

[0026] (III) Take porous ceramic discs with a porosity of 15-85% and a pore size of 50-1000 μm, process them into the required shape and size, and activate them by soaking in a 1-6% sodium hydroxide solution. Aerate and extract for 10-60 min, wash with water until nearly neutral, dry, and immerse in the mixed suspension obtained in step (II). Place both in a pressure vessel and, under ultrasonic oscillation, simultaneously evacuate to a relative pressure of -0.09 MPa. Stop ultrasonic oscillation, maintain pressure and let stand for 30-60 min, restore to normal pressure, then pressurize to 0.5-2 MPa, let stand for 30-60 min, slowly restore to normal pressure, and remove the porous ceramic discs. Dry at 0-105℃, then take the mixed suspension obtained in step (II) and add it evenly dropwise until adsorption is saturated. Dry again at 80-105℃, and repeat the dropwise drying process until it can no longer be absorbed. After drying, isolate it from air, raise the temperature to 280-290℃ at a rate of 1-3℃ / min, hold for 30-60min, continue to raise the temperature to 500-800℃ at a rate of 3-5℃ / min, hold for carbonization for 3-6h, cool to room temperature, place it in an activation furnace, and activate it at 800-1000℃ with supersaturated water vapor for 20-60min. Cool to room temperature and dry to obtain the adsorption friction catalyst disk.

[0027] (iv) The upper adsorption friction catalyst disk and the lower adsorption friction catalyst disk are obtained by setting the required diffusion grooves according to the upper adsorption friction catalyst disk and the lower adsorption friction catalyst disk.

[0028] B: The preparation method of the friction catalytic drive disk is as follows:

[0029] Take polytetrafluoroethylene material, process it into the required shape and size, and clean the surface with coarse sandpaper to obtain polytetrafluoroethylene blank;

[0030] BaTiO3 nanoparticles were immersed in a 5-10% sodium hydroxide solution and sonicated for 30-60 minutes. After soaking for more than 24 hours, the nanoparticles were centrifuged and washed with barium titanate water until near neutral. Then, a 0.1%-0.5% polyethylene glycol PEG-4000 ethanol solution was added and sonicated until uniformly dispersed to obtain a barium titanate suspension. This suspension was then uniformly coated on the surface of a polytetrafluoroethylene (PTFE) preform. The ethanol was evaporated to remove the ethanol, resulting in a preform coated with barium titanate.

[0031] Take a mold of the same shape as the friction catalytic drive disk, lay a layer of barium titanate nanopowder inside the mold, place the barium titanate coated blank in the mold, evenly sprinkle a layer of barium titanate nanopowder on the upper surface of the blank, add the mold cover, heat the mold to 220-260℃, apply a pressure of 1-5MPa simultaneously for molding for 20-30min, cool to room temperature, take it out, remove the unbonded barium titanate powder on the surface, and install the rotating shaft at the center of the disk using a live joint to obtain the friction catalytic drive disk;

[0032] In the B component, the particle size of the BaTiO3 nanoparticles is preferably 50-100 nm.

[0033] C: Installation

[0034] The purifier is installed according to the structure of the integrated mortar and disc adsorption friction catalytic purifier to obtain the integrated mortar and disc adsorption friction catalytic purifier.

[0035] The present invention discloses an integrated adsorption-friction catalytic purifier for municipal solid waste incineration fly ash detoxification or soil remediation of heavy metals, polycyclic aromatic hydrocarbons, and other organic pollutants. The application method is as follows:

[0036] Prepare the extraction solution, close all valves of the equipment, place the extraction solution in the storage tank of the integrated adsorption friction catalytic purifier, open the inlet valve, start the pressure pump, so that the extraction solution enters the inner cavity of the penetrating grinding pestle, and ensure that the extraction solution continuously and evenly enters the space between the pestle and the mortar through the penetrating micropores of the penetrating grinding pestle. Turn on the integrated grinding drive motor of the integrated grinding system, drive the upper grinding disc of the integrated grinding system to rotate through the drive wheel, and drive the friction catalytic drive disc of the integrated grinding system to rotate synchronously through the rotating shaft. Adjust the gap between the pestle and the mortar and the grinding pressure through the elastic buffer.

[0037] Take fly ash from waste incineration or contaminated soil, pass it through a 50-mesh sieve, and add it to the collection hopper. Under the action of the rotating upper grinding disc and the pusher blades, the fly ash or contaminated soil enters the gap between the pestle and mortar, mixes with the extract, and undergoes a grinding reaction to form a mixed liquid, which gradually and continuously enters the discharge port. The upper grinding disc of the integrated mortar continues to rotate, and the mixed liquid is evenly coated on the inner ring of the lower grinding surface through the distribution groove. Under the action of the grinding guide ridge on the upper grinding surface and the grinding guide groove on the lower grinding surface of the lower grinding disc, it enters between the upper and lower grinding discs of the integrated mortar, where the liquid undergoes further grinding reaction and is distributed to the grinding surface. Outer edge diffusion; simultaneously open the suction valve and start the vacuum pump to evacuate the filter friction catalytic adsorption purifier. A ring-shaped filter cloth is laid on the upper surface of the filter ring plate using a layer. When the liquid flows onto the outer ring plate of the lower disc, under vacuum, the liquid passes through the filter cloth on the filter ring plate surface and enters the inner cavity of the filter friction catalytic adsorption purifier. Simultaneously adjust the friction pressure adjustment knob so that the friction catalytic drive disc drives the upper and lower adsorption friction catalytic discs to rotate at a speed lower than the friction catalytic drive disc. A speed difference is formed between the upper adsorption friction catalytic drive disk and the lower adsorption friction catalytic drive disk. The filtrate passing through the filter ring plate falls onto the upper surface of the rotating upper adsorption friction catalytic drive disk, and diffuses through the receiving diffusion groove. The main stream diffuses and is adsorbed through the micropores on the upper adsorption friction catalytic drive disk, and diffuses into the friction surface between the upper adsorption friction catalytic drive disk and the friction catalytic drive disk. Simultaneously, under the push of the lower surface adsorption diffusion groove and the upper friction diffusion groove, it diffuses towards the outer edge of the friction catalytic drive disk, and enters the gap between the walls of the filter friction catalytic adsorption purifier cavity via the outer edge of the friction catalytic drive disk. Under the action of the lower friction diffusion groove on the lower friction catalytic surface and the diffusion groove on the upper surface of the lower adsorption friction catalytic disk, the liquid enters between the friction catalytic drive disk and the lower adsorption friction catalytic disk, continues to undergo friction catalysis, and diffuses and adsorbs in the micropores on the lower adsorption friction catalytic disk. The purified liquid enters the filter friction catalytic adsorption purifier chamber. When the liquid level in the chamber is close to the support net, the drain valve and drain pump on the drain pipe are opened to discharge the treated extract into the collection tank. The working state of the scraper is adjusted by adjusting the scraper blade adjustment knob to scrape and push the dried solid filter cake to the sludge collection tank, and then discharged into the sludge collection tank through the sludge discharge port.

[0038] When the filtration resistance of the friction catalytic adsorption purifier increases, replace the filter cloth. When the heavy metal content in the discharged extract increases, the upper and lower adsorption friction catalytic discs in the purifier need to be regenerated. The regeneration method is as follows: first, stop the equipment, drain the solution in the purifier, close all valves, open the exhaust valve, add the eluent to the eluent regeneration tank, turn on the eluent valve and eluent pump, and pump the eluent into the inner cavity of the purifier so that the upper adsorption friction catalytic disc, the friction catalytic drive disc, and the lower adsorption friction catalytic disc are all immersed in the eluent. Start the drive motor to drive the friction catalytic drive disc to rotate and perform friction washing for 1-2 hours. Turn on the drain valve and drain pump to drain the eluent. Then, pump clean water into the purifier through the eluent regeneration tank and the eluent pump. Wash with water to remove the residual eluent in the same way to complete the regeneration. The purifier can then be put back into use.

[0039] The present invention provides an integrated adsorption-friction catalytic purifier with a mortar and disc, its manufacturing method, and its application, which have the following advantages:

[0040] I. This invention combines a mortar and disc with mechanochemical catalytic cracking extraction and filtration, and adsorption frictional catalysis with separation and purification in an integrated design. It has a compact structure, low cost, and is practical and efficient.

[0041] II. The combination of grinding pestle penetration and drug addition with mortar and pestle grinding improves the drug extraction efficiency and significantly reduces the amount of drug used.

[0042] Third, the integrated series of mortar and disc mills is energy-efficient and efficient, resulting in more thorough mechanical grinding and higher and more complete extraction and catalysis efficiency;

[0043] IV. The pestle is stationary while the mortar rotates, and the mortar and disc are integrated. The mortar and disc rotate, and the rotation of the mortar drives friction catalysis, resulting in high energy utilization, low equipment cost, and energy efficiency.

[0044] V. The equipment integrates extraction, filtration, separation, and filtrate purification, resulting in a compact, highly efficient, and low-consumption system.

[0045] VI. The overlapping design of the friction discs results in a larger friction area and more efficient utilization of frictional energy;

[0046] VII. The unique design of the flow-guiding and diffusion channels and grooves enables the simultaneous alternating action of guiding and driving the liquid flow and adsorption friction, resulting in high efficiency and performance;

[0047] 8. Combining tribocatalysis and adsorption, organic pollutants are enriched and then catalytically degraded, resulting in higher catalytic performance. Complexed heavy metals are broken down by tribocatalysis and then adsorbed, resulting in high performance and stability.

[0048] 9. The adsorption friction disc design avoids the influence of deposits on adsorption during the adsorption and purification process, resulting in a long regeneration cycle, fewer regeneration times, and cost savings. Attached Figure Description

[0049] Figure 1 A schematic diagram of an integrated adsorption friction catalytic purifier with a mortar and disc;

[0050] Figure 2 A cross-sectional internal structure diagram of an integrated adsorption friction catalytic purifier with a mortar and disc;

[0051] Figure 3 Schematic diagrams of the upper grinding disc (12) of the mortar and the upper grinding disc (12) from the bottom (A) and top (B) views;

[0052] Figure 4 A top view (A) and a bottom view (B) of the lower grinding disc (13);

[0053] Figure 5 A schematic diagram of the friction plates of the filter friction catalytic adsorption purifier; (a) is the upper part of the upper adsorption friction catalytic disk, (b) is the lower part of the upper adsorption friction catalytic disk, (c) is the upper part of the friction catalytic drive disk, (d) is the lower part of the friction catalytic drive disk, (e) is the upper part of the lower adsorption friction catalytic disk, (f) is the lower part of the lower adsorption friction catalytic disk, and (g) is the support net.

[0054] Figure 6 A schematic diagram showing the shape of the grinding pestle (A) and the cross-section of the pestle wall at the micropores of the infiltration (B);

[0055] In the above diagram: 1 is an integrated grinding mill, 2 is a filter friction catalytic adsorption purifier, 11 is a grinding pestle for drug penetration, 12 is the upper grinding disc of the integrated grinding mill, 110 is a drug penetration micropore, 111 is a pusher wing, 112 is a drug inlet valve, 113 is a pressure pump, 114 is a drug storage tank, 115 is a pressure gauge, 116 is a crossbeam, 117 is a support, 118 is an elastic buffer, 120 is the upper grinding surface, 121 is a grinding mortar, 122 is a collection hopper, 123 is a discharge port, and 1231 is a material distribution trough. 1201 is the guide ridge of the grinding disc, 124 is the rotating shaft, 1241 is the bearing, 125 is the drive wheel, 1251 is the drive wheel, 1252 is the drive motor, 13 is the lower grinding disc, 130 is the lower grinding surface, 1301 is the guide groove of the grinding disc, 131 is the friction surface of the grinding disc, 1311 is the friction guide groove, 2 is the filter friction catalytic adsorption purifier, 21 is the filter ring plate, 211 is the sludge collection tank, 2111 is the sludge discharge port, 212 is the vacuum port, and 213 is the air extraction valve. 214 is a vacuum pump; 22 is an upper adsorption friction catalytic disk; 23 is a friction catalytic drive disk; 24 is a lower adsorption friction catalytic disk; 25 is a support mesh; 220 is a through hole in the upper adsorption friction catalytic disk; 26 is a friction pressure adjustment knob; 251 is a drain port; 252 is a drain valve; 253 is a drain pump; 254 is a collection tank; 27 is an elution regenerator tank; 271 is an elution pump; 272 is an elution valve; 215 is a sludge scraper; 216 is a layer; 217 is an adjusting rod; 218 is... Scraper adjustment knob, 221 upper surface of the upper adsorption friction catalytic disk, 2211 is the receiving diffusion groove, 22111 is the front guide groove of the receiving diffusion groove, 222 lower surface of the upper adsorption friction catalytic disk, 2221 is the lower surface adsorption diffusion groove, 231 is the upper friction catalytic surface, 2311 is the upper friction diffusion groove, 232 is the lower friction catalytic surface, 2321 is the lower friction diffusion groove, 241 is the upper surface of the lower adsorption friction catalytic disk, 2411 is the diffusion groove on the upper surface of the lower adsorption friction catalytic disk. Detailed Implementation

[0056] The present invention will be further described in detail below with reference to the embodiments.

[0057] Example 1

[0058] This embodiment describes a mortar and disc integrated adsorption friction catalytic purifier 1, which is a deep purification processor that continuously breaks down and extracts heavy metals trapped in fly ash or soil particles, mechanically and chemically extracts and decomposes organic pollutants, and simultaneously adsorbs, frictionally catalytically breaks down complexes, and decomposes them. It includes a mortar and disc integrated mill 1 and a filter friction catalytic adsorption purifier 2, the structure of which is shown below. Figure 1 and Figure 2 :

[0059] The integrated grinding mill 1 includes a grinding pestle 11, an integrated upper grinding disc 12, and a lower grinding disc 13. The grinding pestle 11 is a hollow cylindrical body with a circular head at the bottom, and the circular head is provided with a grinding micropore 110. The grinding pestle 11 has a spirally descending pusher wing 111 on its side wall. The integrated upper grinding disc 12 is a cylindrical body with flat top and bottom. The bottom of the cylindrical body is a circular plane, which is the upper grinding surface 120. The circular pit in the middle of the upper surface of the cylindrical body is the grinding mortar 121. The inner surface of the grinding mortar extends upward to form an integrated collection hopper 122. The grinding pestle 11 is placed in the collection hopper 122, and its circular head cooperates with the grinding mortar 121 of the integrated upper grinding disc 12 to form a grinding extraction zone. The lower grinding disc 13 is provided below the integrated upper grinding disc 12 to form a grinding reaction zone.

[0060] The filter friction catalytic adsorption purifier 2 is located below the lower grinding disc 13; inside the filter friction catalytic adsorption purifier 2, from top to bottom, there is an upper adsorption friction catalytic disc 22, a friction catalytic drive disc 23, a lower adsorption friction catalytic disc 24, and a support net 25; the rotating shaft 124, which is fixed to the center of the upper grinding disc 12 of the mortar and the mortar, passes through the lower grinding disc 13 and the upper adsorption friction catalytic disc 22, and is flexibly connected to the central axis of the friction catalytic drive disc 23. The drive wheel 125 arranged around the upper grinding disc 12 of the mortar and the mortar drives the lower grinding disc 13 and the friction catalytic drive disc 23 to rotate synchronously.

[0061] The micropores 110 are located on the side wall and bottom rounded end of the lower part of the grinding pestle 11. They are multiple through holes penetrating the pestle wall, inclined outwards from the cavity towards the direction of grinding rotation, with a diameter of 0.1 mm and an inclination angle of 60 degrees to the radial direction. The upper part of the hollow cavity of the grinding pestle 11 is connected to the storage tank 114 through an inlet pipe equipped with an inlet valve 112 and a pressure pump 113. A pressure gauge 115 is installed on the grinding pestle 11 to indicate the pressure inside the cavity. The pressure is used to... The micropores 110 provide extract to the grinding extraction zone between the circular head of the grinding pestle 11 and the mortar 121. The upper part of the grinding pestle 11 is fixed on the adjustable height crossbeam 116. The crossbeam 116 is fixed on the base of the filter friction catalytic adsorption purifier 2 by the bracket 117. The crossbeam 116 and the bracket 117 are connected by an elastic buffer 118 that adjusts the height of the crossbeam 116 to change the friction pressure between the pestle and the mortar, while also giving the grinding pestle 11 an elastic buffer.

[0062] The lower surface of the integrated upper grinding disc 12 is a flat, circular upper grinding surface 120. A grinding mortar 121 is provided on the integrated upper grinding disc 12. The bottom of the grinding mortar is coaxial with the integrated upper grinding disc 12. The grinding mortar is raised around its perimeter to form a material collection hopper 122. A discharge port 123 is provided at the bottom of the grinding mortar, offset from the center of the mortar bottom. The lower end of the discharge port opens onto the upper grinding surface 120, forming a material distribution groove 1231 that gradually diffuses in the opposite direction of rotation. Multiple grinding guides radiating outward from the center are provided on the upper grinding surface 120. The ridge 1201 rotates radially upwards towards the grinding disc 12 integrated on the mortar plate, deflecting in the opposite direction by 8-20 degrees. A rotating shaft 124, perpendicular to the grinding surface 120 of the upper grinding disc 12, is located at the center of the upper grinding surface 120. A drive wheel 125 surrounds the upper grinding disc 12. The rotation of the upper grinding disc 12 along the rotating shaft 124 is achieved by the drive wheel 1251 meshing with the drive wheel 125 and its drive motor 1252. A schematic diagram of this structure is shown below. Figure 3 .

[0063] A lower grinding disc 13 is provided directly below the upper grinding surface 120 of the integrated grinding disc 12, as shown in the schematic diagram below. Figure 4 The upper surface of the lower grinding disc is a circular grinding surface 130. Multiple grinding guide grooves 1301 radiate outwards from the center of the circular surface, with the grooves radially offset towards the rotation direction of the integrated upper grinding disc 12 (mortise and tenon joint) by 8-60 degrees. The lower surface of the lower grinding disc 13 is a grinding friction surface 131, which has multiple friction guide grooves 1311 radiating outwards from the center, with the grooves radially offset towards the integrated upper grinding disc (mortise and tenon joint). The upper grinding disc 12 rotates in the opposite direction by 8-60 degrees; the lower grinding surface 130 is aligned and fitted with the upper grinding surface 120, and the radius of the lower grinding surface 130 is smaller than the radius of the upper grinding surface 120. A filter ring plate 21 is provided on the outer ring of the lower grinding surface 130. The rotating shaft 124 on the upper grinding disc 12 of the mortar and the upper grinding disc is set at the center of the lower grinding disc 13 through the bearing 1241. The axis of the rotating shaft 124 is perpendicular to the upper grinding surface 120 and the lower grinding surface 130.

[0064] The filter friction catalytic adsorption purifier 2 is an integral, pressure-resistant, tank-shaped container located directly below the lower grinding disc 13. Its structural schematic diagram is shown below. Figure 5The filter ring plate 21, which performs the filtering function, is located on the outer ring of the lower grinding surface 130 of the lower grinding disc 13, and its upper surface is not higher than the lower grinding surface 130. The outer ring of the filter ring plate 21 is provided with a mud collection groove 211, and the outer ring of the mud collection groove 211 is provided with a mud discharge port 2111. Directly below the filter ring plate 21 and above the filter friction catalytic adsorption purifier 2, there is an annular cavity. A vacuum port 212 is provided near the upper part of the side wall of the cavity, which is connected to a vacuum pump 214 through a pipe provided with a vacuum valve 213. The filter friction catalytic adsorption purifier 2 is provided with an upper adsorption friction catalytic disc 22, a friction catalytic drive disc 23, a lower adsorption friction catalytic disc 24, and a support net 25 from top to bottom. The upper adsorption friction catalytic disc 22 has an upper adsorption friction catalytic disc through hole 220 in the center. The lower end of the rotating shaft 124 extends downward and just passes through the upper adsorption friction catalytic disc through hole 220, flexibly joining the center of the friction catalytic drive disc 23. The flexible joining is a friction catalytic drive disc. The driving disk 23 can rotate with the shaft and 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 disk 22, the friction catalytic driving disk 23 and the lower adsorption friction catalytic disk 24 are located; a friction pressure adjustment knob 26 is provided on the lower part of the support net 25; a drain port 251 is provided at the lowest point of the bottom of the tank-shaped container of the filter friction catalytic adsorption purifier 2, which is connected to the collection tank 254 through a pipe with a drain valve 252 and a drain pump 253; an elution regeneration agent tank 27 is provided outside the filter friction catalytic adsorption purifier 2, which is connected to the filter friction catalytic adsorption purifier through a pipe with an elution pump 271 and an elution valve 272; a scraper 215 and a layer 216 are provided on the upper part of the filter ring plate 21, which can rotate with the grinding disc 12 integrated with the mortar, and their height and working status can be adjusted by adjusting the rod 217 and the scraper adjustment knob 218.

[0065] The lower end of the grinding pestle 11 mates with the grinding mortar 121, and the gap gradually decreases from top to bottom. The width of the spiral pusher blade of the grinding pestle 11 also decreases accordingly, and the outer edge of the pusher blade mates with the grinding mortar wall. The upper grinding surface 120 and the lower grinding surface 130 mate with each other. The size of the gap between the lower end of the grinding pestle 11 and the grinding mortar 121, and the grinding pressure, can be adjusted by adjusting the height of the crossbeam through the elastic buffer 118, that is, adjusting the height of the grinding pestle 11. A schematic diagram of the structure of the grinding pestle is shown below. Figure 6 .

[0066] The upper adsorption friction catalytic disk 22 is circular. Multiple receiving and diffusion grooves 2211 are evenly arranged on the upper surface 221 of the upper adsorption friction catalytic disk, radiating from the center to the circumference. The receiving and diffusion grooves 2211 gradually widen from the center to the circumference in the radial direction of their upper surface, and are deeper in the middle and shallower at both ends. The receiving and diffusion grooves 22111 form an arc-shaped guide groove 22111 on the rotational side of the grinding disk 12 integrated with the mortar. The guide groove 22111 gradually widens radially from the center to the circumference towards the mortar. The grinding disc 12 on the integrated platen rotates smoothly in a circular deflection, forming an arc shape. The concave side of the arc curves towards the rotation direction of the grinding disc 12 on the integrated platen. The receiving diffusion groove 2211 gradually and uniformly becomes shallower in the circumferential direction towards the opposite rotation direction of the grinding disc 12 on the integrated platen, forming a deflection fan-shaped diffusion surface. The total area of ​​the receiving diffusion groove 2211 accounts for 30% of the upper adsorption friction catalyst plate 22, and the deepest part of the center of a single receiving diffusion groove 2211 accounts for 20% of the thickness of the upper adsorption friction catalyst plate 22. The tangential angle of the arc-shaped guide groove 22111 is 60 degrees. The deepest radial part of the receiving diffusion groove 2211 is located directly below the junction of the filter ring plate 21 and the lower disk grinding surface 130. Multiple arc-shaped lower surface adsorption diffusion grooves 2221 are uniformly engraved on the lower surface 222 of the upper adsorption friction catalytic disk, radiating outwards from the center. From the starting point on the center side to the end point in the circumferential direction, the depth increases from shallow to deep, and the end opens at the circumference of the upper adsorption friction catalytic disk 22, with a depth equal to the depth of the adsorption friction catalytic disk. The thickness of the upper adsorption friction catalyst disk 22 is 30%. The adsorption diffusion groove 2221 on the lower surface of the upper adsorption friction catalyst disk 22 extends radially from the center to the surrounding area and deflects towards the rotation direction of the upper grinding disk 12 integrated with the mortar. The concave side of the arc faces the rotation direction of the upper grinding disk 12 integrated with 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 10 degrees. The receiving diffusion groove 2211 on the upper surface of the upper adsorption friction catalyst disk 22 and the adsorption diffusion groove 2221 on the lower surface are not aligned vertically and are alternately distributed.

[0067] The friction catalytic drive disk 23 is a disc positioned below the upper adsorption friction catalytic disk 22. The upper surface of the friction catalytic drive disk 23 has multiple uniformly arranged arc-shaped upper friction diffusion grooves 2311 radiating outwards from the center. From the starting point in the central direction to the ending point in the circumferential direction, the depth increases from shallow to deep, with the ends opening at the circumference of the disc. 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 outwards and deflect in the opposite direction to the rotation of the integrated grinding disc 12. The concave side of the arc faces the integrated grinding disc 12 in the opposite direction of rotation. The line connecting the two ends of the arc is tangent to the starting point near the center. The tangential angle formed by the friction catalytic drive disk 23 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, which is uniformly provided with multiple arc-shaped lower friction diffusion grooves 2321 that radiate outward from the center. 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 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.

[0068] Multiple arc-shaped diffusion grooves 2411 are uniformly arranged on the upper surface 241 of the lower adsorption friction catalytic disk 24, radiating outwards 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 ends open 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, deflecting in the opposite direction to the rotation of the grinding disk 12 integrated with the mortar. The concave side of the arc rotates in the opposite direction to the rotation of the grinding disk 12 integrated with 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. The lower surface of the lower adsorption friction catalytic disk is a flat porous surface.

[0069] The support mesh 25 is a corrosion-resistant steel metal mesh with a aperture range of 1-10mm, and is positioned above the opening of the drain pipe.

[0070] The upper surface 221 of the upper adsorption friction catalytic disk 22 is frictionally matched with the grinding disk friction surface 131, and the lower surface 222 of the upper adsorption friction catalytic disk is frictionally matched with the upper friction catalytic surface of the friction catalytic drive disk 23; the lower friction catalytic surface of the friction catalytic drive disk 23 is frictionally matched with the upper surface of the adsorption friction catalytic disk 24.

[0071] The preparation method of the integrated adsorption friction catalytic purifier 1 of this embodiment includes the following steps:

[0072] A: The preparation methods of the upper adsorption friction catalytic disk 22 and the lower adsorption friction catalytic disk 24 are as follows:

[0073] (I) Take calcium salt and titanium salt in a molar ratio of 1:1 to prepare calcium titanate sol. Take activated carbon in a ratio of 1:5 of calcium titanate mass to activated carbon mass in the calcium titanate sol. Immerse the activated carbon in the calcium titanate sol and place them together in a heatable vacuum container. Vacuum the container until the relative pressure reaches -0.09 MPa and hold the pressure for 45 min. Under continuous vacuum conditions, heat the container until the calcium titanate sol boils. Volatilize and concentrate the calcium titanate sol until it transforms into a gel. Return to normal pressure and continue drying at 110℃. Then calcine at 600℃ in the absence of air for 5 h. Cool to room temperature to obtain calcium titanate-loaded activated carbon.

[0074] (ii) The ratio of calcium titanate-loaded activated carbon to barium titanate powder is 2:1 by mass. The calcium titanate-loaded activated carbon and barium titanate powder are mixed, ball-milled until they can pass through a 500-mesh sieve, and ultrasonically dispersed in an ethanol solution containing 0.1% polyvinyl alcohol by mass to prepare a mixed suspension with a solid content of 10%.

[0075] (III) Take porous ceramic discs with a porosity of 65% and a pore size of 50-1000 μm, process them into the required shape and size, and activate them by soaking in a 2% sodium hydroxide solution. Aerate and extract for 30 min, wash with water until nearly neutral, dry, and immerse in the mixed suspension obtained in step (II). Place both in a pressure vessel, and under ultrasonic oscillation conditions, simultaneously evacuate to a relative pressure of -0.09 MPa. Stop ultrasonic oscillation, maintain pressure and let stand for 40 min, restore to normal pressure, then pressurize to 1 MPa, let stand for 40 min, slowly restore to normal pressure, and remove the discs. The porous ceramic disc is dried at 100℃. Then, the mixed suspension obtained in step (II) is evenly added dropwise onto it until adsorption is saturated. It is dried again at 100℃. The dropwise addition and drying process is repeated until it can no longer absorb. After drying, it is isolated from air and heated to 280℃ at a heating rate of 2℃ / min. It is held at this temperature for 60 min and then heated to 600℃ at a heating rate of 4℃ / min. It is held at this temperature for 4 h for carbonization. It is cooled to room temperature and placed in an activation furnace. Supersaturated water vapor is introduced at 900℃ and activated for 40 min. It is then cooled to room temperature and dried to obtain the adsorption friction catalyst disc.

[0076] (iv) The upper adsorption friction catalyst disk 22 and the lower adsorption friction catalyst disk 24 are set according to the required diffusion grooves to obtain the upper adsorption friction catalyst disk 22 and the lower adsorption friction catalyst disk 24.

[0077] B: The preparation method of the friction catalytic drive disk 23 is as follows:

[0078] Take polytetrafluoroethylene material, process it into the required shape and size, and clean the surface with coarse sandpaper to obtain polytetrafluoroethylene blank;

[0079] BaTiO3 nanoparticles with a particle size range of 50-100 nm were immersed in a 6% sodium hydroxide solution and ultrasonically treated for 60 min. After soaking for more than 24 h, the particles were centrifuged and washed with barium titanate water until near neutral. Then, a 0.2% polyethylene glycol PEG-4000 ethanol solution was added and ultrasonically treated until the particles were evenly dispersed to obtain a barium titanate suspension. This suspension was then uniformly coated on the surface of a polytetrafluoroethylene (PTFE) preform. The ethanol was evaporated to remove the ethanol, resulting in a preform coated with barium titanate.

[0080] Take a mold of the same shape as the friction catalytic drive disk 23, lay a layer of barium titanate nanopowder inside the mold, place the barium titanate coated blank in the mold, evenly sprinkle a layer of barium titanate nanopowder on the upper surface of the blank, add the mold cover, heat the mold to 240°C, apply a pressure of 2MPa simultaneously for molding for 20 minutes, cool to room temperature, take it out, remove the unbonded barium titanate powder on the surface, install the rotating shaft at the center of the disk using a live joint, and obtain the friction catalytic drive disk 23;

[0081] C: Installation

[0082] The purifier is installed according to the structure of the integrated mortar and disc adsorption friction catalytic purifier to obtain the integrated mortar and disc adsorption friction catalytic purifier.

[0083] Example 2

[0084] This embodiment describes the integrated adsorption-friction catalytic purifier 2 with a mortar and disc and its preparation method:

[0085] The integrated adsorption-friction catalytic purifier 2 is the same as Example 1, except that:

[0086] The micropores 110 are located on the side wall and bottom round head of the lower part of the grinding pestle 11. They are multiple through holes that penetrate the pestle wall and are inclined from the inside of the cavity outward toward the direction of rotation of the grinding mortar. The diameter of the holes 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 catalyst disk 22. The deepest part of the middle of a single receiving diffusion groove 2211 accounts for 10% of the thickness of the upper adsorption friction catalyst disk 22. The tangential angle of the arc of the receiving diffusion groove guide groove 22111 is 90 degrees. The deepest part of the radial direction of the receiving diffusion groove 2211 is located directly below the junction of the filter ring plate 21 and the lower disk grinding surface 130. The lower surface 222 of the upper adsorption friction catalyst disk is uniformly engraved with multiple arc-shaped lower surface adsorption diffusion grooves 2221 that radiate from the center to the periphery. The depth increases from shallow to deep. The depth is 50% of the thickness of the adsorption friction catalyst disk 22. The adsorption diffusion groove 2221 on the lower surface of the upper adsorption friction catalyst disk 22 extends radially from the center to the surrounding area and deflects towards the rotation direction of the grinding disk 12 integrated with the mortar. The concave side of the arc faces the rotation direction of the grinding disk 12 integrated with 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 90 degrees. The receiving diffusion groove 2211 on the upper surface of the upper adsorption friction catalyst disk 22 and the adsorption diffusion groove 2221 on the lower surface are not aligned vertically and are alternately distributed.

[0088] The friction catalytic drive disk 23 is a disc disposed below the upper adsorption friction catalytic disk 22. The upper surface of the friction catalytic drive disk 23 is an upper friction catalytic surface 231 uniformly provided with multiple arc-shaped upper friction diffusion grooves 2311 radiating outwards from the center. From the starting point in the center direction to the ending point in the circumferential direction, the depth increases from shallow to deep, with the ends opening at the circumference of the disc. The depth is 30% of the thickness of the friction catalytic drive disk 23. The upper friction diffusion grooves 2311 extend radially from the center outwards and deflect in the opposite direction to the rotation of the integrated grinding disc 12. The concave side of the arc faces the integrated grinding disc 12 in the opposite direction of rotation. 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 90 degrees; the lower surface of the friction catalytic drive disk 23 is the lower friction catalytic surface 232, which is uniformly provided with multiple arc-shaped lower friction diffusion grooves 2321 that radiate outward from the center. 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 30% of the thickness of the friction catalytic drive disk 23. The lower friction diffusion grooves 2321 extend radially from the center 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 90 degrees.

[0089] Multiple arc-shaped diffusion grooves 2411 are uniformly arranged on the upper surface 241 of the lower adsorption friction catalytic disk 24, radiating outwards 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 of the groove opens at the circumference of the lower adsorption friction catalytic disk 24, and the depth is 30% of the thickness of the lower adsorption friction catalytic disk 24. The diffusion grooves 2411 extend radially outwards from the center and deflect in the opposite direction to the rotation of the grinding disk 12 integrated with the mortar. The concave side of the arc rotates in the opposite direction to the rotation of the grinding disk 12 integrated with 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 90 degrees. The lower surface of the lower adsorption friction catalytic disk is a flat porous surface.

[0090] The supporting mesh 25 is a corrosion-resistant steel metal mesh with a pore size range of 10mm, and is positioned above the opening of the drain pipe.

[0091] The preparation method of the integrated adsorption friction catalytic purifier 2 is as follows:

[0092] A: The preparation methods of the upper adsorption friction catalytic disk 22 and the lower adsorption friction catalytic disk 24 are as follows:

[0093] (i) Take calcium salt and titanium salt in a molar ratio of 1:1 to prepare calcium titanate sol. Boil the sol at a ratio of 1:10 of calcium titanate mass to activated carbon mass, volatilize and concentrate until the calcium titanate sol transforms into a gel. Return to normal pressure, continue drying at 125°C, and then calcine at 800°C in the absence of air for 6 hours. Cool to room temperature to obtain calcium titanate-loaded activated carbon.

[0094] (ii) The ratio of calcium titanate-loaded activated carbon to barium titanate powder is 5:1 by mass. The calcium titanate-loaded activated carbon and barium titanate powder are mixed, ball-milled until they can pass through a 500-mesh sieve, and ultrasonically dispersed in an ethanol solution containing -0.2% polyvinyl alcohol by mass to prepare a mixed suspension with a solid content of 20%.

[0095] (III) Take porous ceramic discs with a porosity of 85% and a pore size of 50-1000 μm, process them into the required shape and size, soak and activate them in a 6% sodium hydroxide solution, aerate and extract for 60 min, wash with water until nearly neutral, dry, immerse them in the mixed suspension obtained in step (II), place them together in a pressure vessel, and under ultrasonic oscillation, simultaneously evacuate to a relative pressure of -0.09 MPa, stop ultrasonic oscillation, maintain pressure and stand for 60 min, restore to normal pressure, then pressurize to 2 MPa, stand for 60 min, slowly restore to normal pressure, and remove the porous discs. The ceramic disc is dried at 105℃. The mixed suspension obtained in step (II) is then evenly added dropwise onto it until adsorption is saturated. It is dried again at 105℃. The dropwise addition and drying process is repeated until it can no longer absorb. After drying, it is isolated from air and heated to 290℃ at a heating rate of 3℃ / min. It is held at this temperature for 30 min and then heated to 800℃ at a heating rate of 5℃ / min. It is held at this temperature for 3 h for carbonization. It is cooled to room temperature and placed in an activation furnace. Supersaturated water vapor is introduced at 1000℃ for 20 min for activation. It is then cooled to room temperature and dried to obtain the adsorption friction catalyst disk.

[0096] (iv) The upper adsorption friction catalyst disk 22 and the lower adsorption friction catalyst disk 24 are set according to the required diffusion grooves to obtain the upper adsorption friction catalyst disk 22 and the lower adsorption friction catalyst disk 24.

[0097] B: The preparation method of the friction catalytic drive disk 23 is as follows:

[0098] Take polytetrafluoroethylene material, process it into the required shape and size, and clean the surface with coarse sandpaper to obtain polytetrafluoroethylene blank;

[0099] BaTiO3 nanoparticles with a particle size range of 50-100 nm were immersed in a 10% sodium hydroxide solution and ultrasonically treated for 60 min. After soaking for more than 24 h, the particles were centrifuged and washed with barium titanate water until near neutral. Then, a 0.5% polyethylene glycol PEG-4000 ethanol solution was added and ultrasonically treated until the particles were evenly dispersed to obtain a barium titanate suspension. This suspension was then uniformly coated on the surface of a polytetrafluoroethylene (PTFE) preform. The ethanol was evaporated to remove the ethanol, resulting in a preform coated with barium titanate.

[0100] Take a mold of the same shape as the friction catalytic drive disk 23, lay a layer of barium titanate nanopowder inside the mold, place the barium titanate coated blank in the mold, evenly sprinkle a layer of barium titanate nanopowder on the upper surface of the blank, add the mold cover, heat the mold to 260°C, apply a pressure of 5MPa simultaneously for 20 minutes, cool to room temperature, take it out, remove the unbonded barium titanate powder on the surface, and install the rotating shaft at the center of the disk using a live joint to obtain the friction catalytic drive disk 23;

[0101] C: Installation

[0102] The purifier is installed according to the structure of the integrated mortar and disc adsorption friction catalytic purifier to obtain the integrated mortar and disc adsorption friction catalytic purifier.

[0103] Example 3

[0104] This embodiment describes the integrated adsorption-friction catalytic purifier 3 with a mortar and disc and its preparation method:

[0105] The integrated adsorption friction catalytic purifier 3 is the same as Example 1, except that:

[0106] The micropores 110 are located on the side wall and bottom round head of the lower part of the grinding pestle 11. They are multiple through holes that penetrate the wall of the pestle and are inclined from the inside of the cavity outward toward the direction of rotation of the grinding mortar. The diameter of the holes is 0.01 mm and the inclination angle is 10 degrees with the radial direction.

[0107] The total area of ​​the receiving diffusion groove 2211 accounts for 10% of the upper adsorption friction catalyst disk 22. The deepest part of the middle of a single receiving diffusion groove 2211 accounts for 10% of the thickness of the upper adsorption friction catalyst disk 22. The tangential angle of the arc of the receiving diffusion groove guide groove 22111 is 6 degrees. The deepest part of the radial direction of the receiving diffusion groove 2211 is located directly below the junction of the filter ring plate 21 and the lower disk grinding surface 130. The lower surface 222 of the upper adsorption friction catalyst disk is uniformly engraved with multiple arc-shaped lower surface adsorption diffusion grooves 2221 that radiate from the center to the periphery. The depth increases from shallow to deep. The depth is 2% of the thickness of the adsorption friction catalyst disk 22. The adsorption diffusion groove 2221 on the lower surface of the upper adsorption friction catalyst disk 22 extends radially from the center to the surrounding area and deflects towards the rotation direction of the grinding disk 12 integrated with the mortar. The concave side of the arc faces the rotation direction of the grinding disk 12 integrated with 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 degrees. The receiving diffusion groove 2211 on the upper surface of the upper adsorption friction catalyst disk 22 and the adsorption diffusion groove 2221 on the lower surface are not aligned vertically and are alternately distributed.

[0108] The friction catalytic drive disk 23 is a disc disposed below the upper adsorption friction catalytic disk 22. The upper surface of the friction catalytic drive disk 23 is an upper friction catalytic surface 231 uniformly provided with multiple arc-shaped upper friction diffusion grooves 2311 radiating outwards from the center. From the starting point in the center direction to the ending point in the circumferential direction, the depth increases from shallow to deep, with the ends opening at the circumference of the friction catalytic drive disk 23. The depth is 2% of the thickness of the friction catalytic drive disk 23. The upper friction diffusion grooves 2311 extend radially from the center outwards and deflect in the opposite direction to the rotation of the integrated grinding disc 12. The concave side of the arc rotates in the opposite direction to the rotation of the integrated grinding disc 12. The line connecting the two ends of the arc intersects with the starting point near the center. The tangential angle formed by the tangent is in the range of 6 degrees; the lower surface of the friction catalytic drive disk 23 is the lower friction catalytic surface 232, which is uniformly provided with multiple arc-shaped lower friction diffusion grooves 2321 that radiate outward from the center. 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% of the thickness of the friction catalytic drive disk 23. The lower friction diffusion grooves 2321 extend radially from the center 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 degrees.

[0109] Multiple arc-shaped diffusion grooves 2411 are uniformly arranged on the upper surface 241 of the lower adsorption friction catalytic disk 24, radiating outwards 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 of the groove opens at the circumference of the lower adsorption friction catalytic disk 24, and the depth is 2% of the thickness of the lower adsorption friction catalytic disk 24. The diffusion grooves 2411 extend radially outwards from the center and deflect in the opposite direction to the rotation of the grinding disc 12 integrated with the mortar. The concave side of the arc rotates in the opposite direction to the rotation of the grinding disc 12 integrated with the mortar. The tangent 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 degrees. The lower surface of the lower adsorption friction catalytic disk is a flat porous surface.

[0110] The supporting mesh 25 is a corrosion-resistant steel metal mesh with a pore size range of 1mm, and is positioned above the opening of the drain pipe.

[0111] The preparation method of the integrated adsorption friction catalytic purifier 3 is as follows:

[0112] A: The preparation methods of the upper adsorption friction catalytic disk 22 and the lower adsorption friction catalytic disk 24 are as follows:

[0113] (I) Take calcium salt and titanium salt in a molar ratio of 1:1 to prepare calcium titanate sol. Take activated carbon in a ratio of 1:2 of calcium titanate mass to activated carbon mass in the calcium titanate sol. Immerse the activated carbon in the calcium titanate sol and place them together in a heatable vacuum container. Vacuum the container until the relative pressure reaches -0.09 MPa and maintain the pressure for 30 minutes. Under continuous vacuum conditions, heat the container until the calcium titanate sol boils. Volatilize and concentrate the calcium titanate sol until it transforms into a gel. Return to normal pressure and continue drying at 105℃. Then calcine at 450℃ in the absence of air for 6 hours. Cool to room temperature to obtain calcium titanate-loaded activated carbon.

[0114] (ii) The ratio of calcium titanate-loaded activated carbon to barium titanate powder is 1:1 by mass. The calcium titanate-loaded activated carbon and barium titanate powder are mixed, ball-milled until they can pass through a 500-mesh sieve, and ultrasonically dispersed in an ethanol solution containing 0.01% polyvinyl alcohol by mass to prepare a mixed suspension with a solid content of 1%.

[0115] (III) Take porous ceramic discs with a porosity of 15% and a pore size of 50-1000 μm, process them into the required shape and size, soak and activate them in a 1% sodium hydroxide solution, aerate and extract for 10 min, wash with water until nearly neutral, dry, and immerse them in the mixed suspension obtained in step (II). Place them together in a pressure vessel, and under ultrasonic oscillation conditions, simultaneously evacuate to a relative pressure of -0.09 MPa. Stop ultrasonic oscillation, maintain pressure and let stand for 30 min, restore to normal pressure, then pressurize to 0.5 MPa, let stand for 30 min, slowly restore to normal pressure, and take... The porous ceramic disc is dried at 80°C. The mixed suspension obtained in step (II) is then uniformly added dropwise onto it until adsorption is saturated. It is dried again at 80°C. The dropwise addition and drying process is repeated until it can no longer absorb. After drying, it is isolated from air and heated to 280°C at a rate of 1°C / min. It is held at this temperature for 60 min and then heated to 500°C at a rate of 3°C / min. It is held at this temperature for 6 h for carbonization. It is cooled to room temperature and placed in an activation furnace. Supersaturated water vapor is introduced at 800°C and activated for 20 min. It is then cooled to room temperature and dried to obtain the adsorption friction catalyst disc.

[0116] (iv) The upper adsorption friction catalyst disk 22 and the lower adsorption friction catalyst disk 24 are set according to the required diffusion grooves to obtain the upper adsorption friction catalyst disk 22 and the lower adsorption friction catalyst disk 24.

[0117] B: The preparation method of the friction catalytic drive disk 23 is as follows:

[0118] Take polytetrafluoroethylene material, process it into the required shape and size, and clean the surface with coarse sandpaper to obtain polytetrafluoroethylene blank;

[0119] BaTiO3 nanoparticles with a particle size range of 50-100 nm were immersed in a 5% sodium hydroxide solution and ultrasonically treated for 30 min. After soaking for more than 24 h, the particles were centrifuged and washed with barium titanate water until near neutral. Then, a 0.1% polyethylene glycol PEG-4000 ethanol solution was added and ultrasonically treated until the particles were evenly dispersed to obtain a barium titanate suspension. This suspension was then uniformly coated on the surface of a polytetrafluoroethylene (PTFE) preform. The ethanol was evaporated to remove the ethanol, resulting in a preform coated with barium titanate.

[0120] Take a mold of the same shape as the friction catalytic drive disk 23, lay a layer of barium titanate nanopowder inside the mold, place the barium titanate coated blank in the mold, evenly sprinkle a layer of barium titanate nanopowder on the upper surface of the blank, add the mold cover, heat the mold to 220°C, apply a pressure of 1MPa simultaneously for 20 minutes, cool to room temperature, take it out, remove the unbonded barium titanate powder on the surface, and install the rotating shaft at the center of the disk using a live joint to obtain the friction catalytic drive disk 23;

[0121] C: Installation

[0122] The purifier is installed according to the structure of the integrated mortar and disc adsorption friction catalytic purifier to obtain the integrated mortar and disc adsorption friction catalytic purifier.

[0123] Comparative Example 1

[0124] The upper and lower adsorption friction catalytic discs are made of ordinary ceramic products, and the rest are the same as the integrated adsorption friction catalytic purifier with mortar and disc in Example 1.

[0125] Comparative Example 2

[0126] The friction catalytic drive disk 23 is made of ordinary polytetrafluoroethylene material, and the rest is the same as the integrated adsorption friction catalytic purifier of the mortar and disc in Example 1.

[0127] Comparative Example 3

[0128] If the micropores of the grinding pestle in the integrated mortar and disc adsorption friction catalytic purifier are tilted in the opposite direction to the grinding mortar or perpendicular to the pestle wall, some of the micropores are easily blocked by fly ash or particulate matter in the soil, affecting uniform drug penetration, resulting in uneven and insufficient extraction, or even failure to proceed.

[0129] Application Example 1

[0130] The integrated adsorption-friction catalytic purifier with mortar and disc in Examples 1-3 and Comparative Examples 1 and 2 was used to treat fly ash from waste incineration.

[0131] The integrated adsorption friction catalytic purifier of the present invention is used for the detoxification and desalination treatment of fly ash from municipal solid waste incineration. The fly ash from municipal solid waste incineration is taken from a municipal solid waste incineration plant in Shenyang, and its basic components are shown in Table 1.

[0132] The specific processing procedure is as follows: Prepare a mixed solution of 0.5 mol / L citric acid and 0.1 mol / L EDTA as the extractant, close all valves of the equipment, place the extractant in the storage tank 114 of the integrated adsorption friction catalytic purifier, open the inlet valve 112, start the pressure pump 113, so that the extractant enters the inner cavity of the penetrating grinding pestle 11, and ensure that the extractant continuously and evenly enters the space between the pestle and the mortar through the penetrating micropores 110 of the penetrating grinding pestle, turn on the integrated grinding drive motor 1252, drive the integrated grinding disc 12 of the integrated grinding disc 12 to rotate through the drive wheel 1251, and drive the friction catalytic drive disc 23 to rotate synchronously through the rotating shaft 124, and adjust the gap between the pestle and the mortar and the grinding pressure through the elastic buffer 118;

[0133] The fly ash from the waste incineration is added to the collecting hopper 122. Under the action of the rotating upper grinding disc 12 and the pusher wing 111, the fly ash enters the gap between the pestle and mortar and mixes with the extractant. The mixture reacts in the mortar and mortar to form a mixed liquid, which gradually and continuously enters the discharge port 123. The upper grinding disc 12 continues to rotate, and the mixed liquid is evenly coated on the inner ring of the lower grinding surface through the distribution groove 1231. Under the action of the grinding guide ridge 1201 on the upper grinding surface 120 and the grinding guide groove 1301 on the lower grinding surface 130 of the lower grinding disc 13, the mixture enters between the upper grinding disc 12 and the lower grinding disc 13. The liquid further undergoes a grinding reaction and diffuses to the outer edge of the grinding surface. Simultaneously, the exhaust valve 21 is opened. 3. Turn on the vacuum pump 214 to evacuate the filter friction catalytic adsorption purifier 2. Lay annular filter cloth onto the upper surface of the filter ring plate 21 using the layer 216. When the liquid is pushed onto the outer ring of the filter ring plate 21 on the lower grinding surface 130, under the action of vacuum force, the liquid passes through the filter cloth on the surface of the filter ring plate 21 and enters the inner cavity of the filter friction catalytic adsorption purifier 2. Simultaneously adjust the friction pressure adjustment knob 26 so that the friction catalytic drive disc 23 drives the upper adsorption friction catalytic disc 22 and the lower adsorption friction catalytic disc 24 to rotate at a speed lower than that of the friction catalytic drive disc 23 through friction. A rotational speed difference is formed between the adsorption friction catalytic disks 24; the filtrate passing through the filter ring plate 21 falls onto the upper surface of the rotating upper adsorption friction catalytic disk 22, and is distributed and diffused through the receiving diffusion groove 2211. The main stream diffuses and is adsorbed through the micropores on the upper adsorption friction catalytic disk 22, and diffuses into the friction surface between the upper adsorption friction catalytic disk 22 and the friction catalytic driving disk 23. Simultaneously, under the push of the lower surface adsorption diffusion groove 2221 and the upper friction diffusion groove 2311, it diffuses towards the outer edge of the friction catalytic driving disk 23, and enters the gap between the filter friction catalytic adsorption purifier cavity wall through the outer edge of the friction catalytic driving disk 23, and is placed on the lower friction catalytic surface 232 of the friction catalytic driving disk 23. Under the action of the friction diffusion groove 2321 and the diffusion groove 2411 on the upper surface of the lower adsorption friction catalytic disk 24, the liquid enters between the friction catalytic drive disk 23 and the lower adsorption friction catalytic disk 24, continues to undergo friction catalysis, and diffuses and adsorbs in the micropores on the lower adsorption friction catalytic disk 24. The purified liquid enters the chamber of the filter friction catalytic adsorption purifier 2. When the liquid level in the chamber is close to the support net 25, the drain valve 252 and the drain pump 253 on the drain pipe are opened to discharge the treated extract into the collection tank 254. The working state of the scraper 215 is adjusted by the scraper adjustment knob 218 to scrape and push the dried solid filter cake to the mud collection tank 211, and then discharged into the mud collection tank through the mud discharge port 2111.

[0134] Meanwhile, leaching and ball milling leaching were used as controls to treat fly ash: In the leaching method, fly ash and extract, exactly the same as those in the embodiment of the present invention, were taken at a solid-liquid ratio of 1:5, stirred and mixed evenly, and leached at 240 r / min for 1 h at room temperature. After filtration, the detoxified fly ash and extract were recovered separately. In the ball milling leaching method, fly ash and extract, exactly the same as those in the embodiment of the present invention, were taken at a solid-liquid ratio of 1:5, stirred and mixed evenly, and ball milled at 120 r / min for 1 h at room temperature at a ball-to-material ratio of 5:1. After filtration, the detoxified fly ash and extract were recovered separately.

[0135] In accordance with the "Technical Specification for Pollution Control of Fly Ash from Municipal Solid Waste Incineration (Trial) (HJ 1134—2020)," heavy metals in fly ash and extract were determined by atomic absorption spectrometry, and dioxins were determined by gas chromatography-mass spectrometry. The results are shown in Tables 2 and 3. To minimize the impact of residual heavy metals from the extract contained in the solids, high-pressure filtration was used to thoroughly remove residual liquid before solid analysis, followed by sampling and analysis.

[0136] Table 1. Composition of raw ash used in the examples (unit: %)

[0137] 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 from fly ash from waste incineration treated using the present invention.

[0139]

[0140] Table 3 shows the leachate obtained from treating 1 kg of waste incineration fly ash using the present invention and the pollutant content therein.

[0141]

[0142]

[0143] As can be seen from the data in Tables 2 and 3, the integrated adsorption-friction catalytic purifier of the present invention for treating fly ash from waste incineration takes less time, has a higher removal rate of heavy metals, dioxins, and chlorine compared to conventional detoxification methods, requires less extract liquid, has a smaller volume of recovered extract liquid, and the content of heavy metals is significantly reduced due to adsorption and purification. The decomposition rate of dioxins is also significantly better than that of conventional ball milling.

[0144] Application Example 2

[0145] The integrated adsorption-friction catalytic purifier with a mortar and disc, as described in Examples 1-3, was used to treat soil contaminated with heavy metals and polycyclic aromatic hydrocarbons.

[0146] In this embodiment, the soil sample was taken from contaminated soil inside a company in Liaoning Province. Large particles such as stones, sticks, and leaves were removed, and the soil was naturally air-dried. The soil clods were crushed with wooden sticks and passed through a 50-mesh sieve. A mixture of 0.1 mol / L EDTA and 2% Tween 80 was used as the extraction solution. Under the same conditions as in Application Example 1, the soil sample was treated with the integrated adsorption friction catalytic purifier of the mortar and disc in Examples 1-3 of this invention.

[0147] In this experiment, lead, cadmium, copper, zinc, and nickel were selected as the heavy metals to be investigated. The heavy metal content in the soil before and after treatment was determined according to the standards "Technical Specification for In-situ Remediation of Soil Contaminated with Heavy Metals Lead, Zinc, Cadmium, Copper, and Nickel (HG / T 20713-2020) and Soil Environmental Quality Standard for Risk Control of Agricultural Land Soil Pollution (Trial) (GB 15618—2018)". The heavy metal content in the extract was determined according to the standards "Determination of Copper, Zinc, Lead, Nickel, and Chromium in Soil and Sediments by Flame Atomic Absorption Spectrophotometry (HJ 491-2019)" and "Determination of Lead and Cadmium in Soil by Graphite Furnace Atomic Absorption Spectrophotometry (GB / T17141-1997)". The heavy metal content in the extract was determined according to the standards "Determination of Copper, Zinc, Lead, and Cadmium in Water by Atomic Absorption Spectrophotometry (GB7475-1987)" and "Determination of Nickel in Water by Flame Atomic Absorption Spectrophotometry (GB / T 11912-1989)". 892-2017 Determination of Polycyclic Aromatic Hydrocarbons in Solid Waste by High Performance Liquid Chromatography (HPLC) for the determination of polycyclic aromatic hydrocarbon content in contaminated soil and extracts.

[0148] Meanwhile, a direct extraction method and an extraction + ball milling method were conducted under the same conditions as in Application Example 1, with the extract-to-soil ratio of 5:1. The results are shown in Tables 4 and 5.

[0149] Table 4. Pollutant removal status of contaminated soil treated using the present invention.

[0150]

[0151]

[0152] Table 5 shows the leachate obtained from treating 1 kg of contaminated soil using this invention and the pollutant content therein.

[0153]

[0154] As can be seen from the data in Tables 4 and 5, the integrated adsorption-friction catalytic purifier of the present invention, when treating contaminated soil, takes less time, has a higher removal rate of heavy metals and polycyclic aromatic hydrocarbons compared to conventional detoxification methods, requires less extract liquid, has a smaller volume of recovered extract liquid, and the content of heavy metals is significantly reduced due to adsorption and purification. The decomposition rate of polycyclic aromatic hydrocarbons is also significantly better than that of conventional ball milling.

[0155] Regeneration of the integrated adsorption friction catalytic purifier: When the filtration resistance of the filter friction catalytic adsorption purifier 2 increases, replace the filter cloth; when the heavy metal content in the discharged extract increases, the upper and lower adsorption friction catalytic discs in the filter friction catalytic adsorption purifier 2 need to be regenerated. The regeneration method is as follows: first, stop the equipment, drain the solution in the filter friction catalytic adsorption purifier 2, close all valves, open the exhaust valve 213, add 0.5 mol / L nitric acid solution of the eluent to the eluent regeneration tank 27, open the eluent valve 272 and the eluent pump 271, and then... The eluent is pumped into the inner cavity of the filter friction catalytic adsorption purifier 2, so that the upper adsorption friction catalytic disk 22, the friction catalytic drive disk 23 and the lower adsorption friction catalytic disk 24 are all immersed in the eluent. The drive motor 1252 is started to drive the friction catalytic drive disk 23 to rotate. Friction washing is performed for 1-2 hours. The drain valve 252 and the drain pump 253 are opened to drain the eluent. Then, clean water is pumped into the filter friction catalytic adsorption purifier 2 through the eluent regeneration tank 27 and the eluent pump 271. The residual eluent is removed by rinsing with water in the same manner to complete the regeneration and put it back into use.

Claims

1. A mortar-disc integrated adsorption friction catalytic purifier, characterized in that, The integrated mortar and disc adsorption friction catalytic purifier includes an integrated mortar and disc mill (1) and a filter friction catalytic adsorption purifier (2); the integrated mortar and disc mill (1) includes a drug-penetrating grinding pestle (11), an integrated upper grinding disc (12) and a lower grinding disc (13); the drug-penetrating grinding pestle (11) is a hollow cylindrical body with a round bottom head, and drug-penetrating micropores (110) are provided on the round head. The side wall of the drug-penetrating grinding pestle (11) is provided with a spirally descending pusher wing (111), and the integrated upper grinding disc... (12) is a cylindrical body. The 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 integral collection hopper (122). The medicine-penetrating grinding pestle (11) is set in the collection hopper (122). The circular head of the medicine-penetrating grinding pestle (11) and the grinding mortar (121) of the grinding disc (12) of the integrated grinding disc are matched to form a grinding extraction zone. A lower grinding disc (13) is set below the integrated grinding disc (12) of the integrated grinding disc to form a grinding reaction zone. The filter friction catalytic adsorption purifier (2) is set 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 drive disc (23), a lower adsorption friction catalytic disc (24) and a support net (25) from top to bottom; the rotating shaft (124) fixed in the center of the upper grinding disc (12) of the mortar plate passes through the lower grinding disc (13) and the upper adsorption friction catalytic disc (22) downwards, and is flexibly combined with the central axis of the friction catalytic drive disc (23). The lower grinding disc (13) and the friction catalytic drive disc (23) are driven to rotate synchronously by the drive wheel disc (125) arranged around the upper grinding disc (12) of the mortar plate; The friction catalytic adsorption purifier (2) is a can-shaped pressure-resistant container located directly below the lower grinding disc (13). The filter ring plate (21) for filtration is located on the outer ring of the lower grinding surface (130) of the lower grinding disc (13), and its upper surface is lower than the lower grinding surface (130). A scraper (215) and a spreader (216) are provided on the upper part of the filter ring plate (21). The scraper (215) and the spreader (216) can rotate with the upper grinding disc (12) integrated with the mortar. The working status is adjusted by adjusting the lever (217) and the scraper adjustment knob (218); the outer ring of the filter ring plate (21) is provided with a mud collection trough (211), the outer ring of the mud collection trough (211) is provided with a mud discharge port (2111), the filter ring plate (21) is directly below the filter ring plate (21) and the upper part of the filter friction catalytic adsorption purifier (2) is an annular cavity, and a vacuum port (212) is provided near the upper part of the side wall of the cavity, which is connected to the vacuum pump (214) through a pipe with a suction valve (213); The upper adsorption friction catalytic disk (22) has an upper adsorption friction catalytic disk through hole (220) at its center. The lower end of the rotating shaft (124) extends downward and passes through the upper adsorption friction catalytic disk through hole (220) to flexibly connect with the center of the friction catalytic drive disk (23). The flexible connection means that the friction catalytic drive disk (23) can rotate with the shaft and also 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 disk (22), the friction catalytic drive disk (23), and the lower adsorption friction catalytic disk (24) are located. A friction pressure adjustment knob (26) is provided on the lower part of the support net (25) of the container wall. A drain port (251) is provided at the lowest point of the tank-shaped container of the filter friction catalytic adsorption purifier (2), and is connected to the collection tank (254) through a pipe with a drain valve (252) and a drain pump (253); an elution regenerator tank (27) is provided outside the filter friction catalytic adsorption purifier (2), and is connected to the filter friction catalytic adsorption purifier (2) through a pipe with an elution pump (271) and an elution valve (272).

2. The integrated adsorption-friction catalytic purifier with a mortar and disc according to claim 1, characterized in that, The micropores (110) are multiple through holes inclined outward from the cavity towards the direction of rotation of the grinding mortar, located on the side wall and bottom rounded end of the lower part of the grinding pestle (11). The diameter of the holes is 0.01mm-0.5mm, and the inclination angle is 10-90 degrees with the radial direction. The upper part of the hollow cavity of the grinding pestle (11) is connected to the storage tank (114) through a drug inlet pipe equipped with a drug inlet valve (112) and a pressure pump (113). A pressure gauge (115) is installed on the grinding pestle (11) to indicate the pressure in the cavity. The pressure is used to pass through the micropores. (110) Provide extractant to the mortar and pestle extraction zone between the round head of the penetrating grinding pestle (11) and the mortar (121). The upper part of the penetrating grinding pestle (11) is fixed on the height-adjustable crossbeam (116). The crossbeam (116) is fixed on the base of the filter friction catalytic adsorption purifier (2) by the bracket (117). The crossbeam (116) and the bracket (117) are connected by an elastic buffer (118) that can adjust the height of the crossbeam (116) to change the friction pressure between the pestle and the mortar, while making the penetrating grinding pestle (11) have elastic buffer.

3. The integrated adsorption-friction catalytic purifier with a mortar and disc according to claim 2, characterized in that, The lower surface of the integrated upper grinding disc (12) is a flat circular upper grinding surface (120). A grinding mortar (121) is provided on the upper surface of the integrated upper grinding disc (12). The bottom of the grinding mortar is coaxial with the integrated upper grinding disc (12). The grinding mortar is raised around to form a material collection hopper (122). A discharge port (123) is provided at the bottom of the grinding mortar off-center from the center of the mortar bottom. The lower end of the discharge port opens onto the upper grinding surface (120) to form a material distribution groove (1231) that gradually diffuses in the opposite direction of rotation. Multiple discs radiating outward from the center are provided on the upper grinding surface (120). The grinding guide ridge (1201) is radially oriented towards the grinding disc (12) of the mortar plate, and is deflected 8-20 degrees in the opposite direction. The grinding surface (120) of the grinding disc (12) of the mortar plate is provided with a rotating shaft (124) perpendicular to the grinding surface of the upper plate. The grinding disc (12) of the mortar plate is provided with a drive wheel (125) surrounding the mortar plate. The rotation of the grinding disc (12) of the mortar plate is realized by the drive wheel (1251) meshing with the drive wheel (125) and its drive motor (1252).

4. The integrated adsorption-friction catalytic purifier with a mortar and disc according to claim 3, characterized in that, A lower grinding disc (13) is provided directly below the upper grinding surface (120) of the integrated grinding disc (12). The upper surface of the lower grinding disc (13) is a circular lower grinding surface (130). Multiple grinding guide grooves (1301) are provided on the lower grinding disc (13) radiating from the center of the circular surface. The grooves are radially deflected 8-60 degrees in the direction of rotation of the integrated grinding disc (12). The lower surface of the lower grinding disc (13) is a grinding friction surface (131). Multiple friction guide grooves (131) are provided on the grinding friction surface (131) radiating from the center. 1), and the groove is radially oriented towards the upper grinding disc (12) of the mortar plate, rotating in the opposite direction by 8-60 degrees; the lower grinding surface (130) is aligned with the upper grinding surface (120), and the radius of the lower grinding surface (130) is smaller than the radius of the upper grinding surface (120). The outer ring of the lower grinding surface (130) is provided with a filter ring plate (21). The rotating shaft (124) on the upper grinding disc (12) of the mortar plate is set at the center of the lower grinding disc (13) through the bearing (1241). The axis of the rotating shaft (124) is perpendicular to the upper grinding surface (120) and the lower grinding surface (130).

5. The integrated adsorption-friction catalytic purifier with a mortar and disc according to claim 4, characterized in that, The upper adsorption friction catalytic disk (22) is circular. Multiple receiving and diffusion grooves (2211) radiating from the center to the circumference are uniformly arranged on the upper surface (221) of the upper adsorption friction catalytic disk. The receiving and diffusion grooves (2211) gradually widen from the center to the circumference, and are deeper in the middle and shallower at both ends. In the circumferential direction, the receiving and diffusion grooves (2211) gradually become shallower uniformly in the opposite direction to the rotation of the integrated upper grinding disk (12), forming a deflection fan-shaped diffusion surface. The total area of ​​the receiving and diffusion grooves (2211) accounts for 10-60% of the upper adsorption friction catalytic disk (22). The deepest part of a single receiving and diffusion groove (2211) accounts for a significant portion of the upper adsorption friction catalytic disk's area. 22) 10-50% of the thickness, the deepest part of the radial direction of the receiving diffusion groove (2211) is located directly below the junction of the filter ring plate (21) and the lower grinding surface (130); the receiving diffusion groove (2211) forms an arc-shaped receiving diffusion groove guide groove (22111) on the side of the grinding disc (12) of the mortar plate. The receiving diffusion groove guide groove (22111) gradually deflects smoothly from the center to the circumference towards the rotation direction of the grinding disc (12) of the mortar plate, forming an arc shape. The concave side of the arc curve faces the rotation direction of the grinding disc (12) of the mortar plate. The tangential angle of the arc of the receiving diffusion groove guide groove (22111) is 6-90 degrees. The lower surface (222) of the upper adsorption friction catalytic disk is uniformly engraved with multiple arc-shaped lower surface adsorption diffusion grooves (2221) radiating outward from the center. The depth increases from shallow to deep from the starting point on the center side to the end point in the circumferential direction. The end opens on the circumference of the upper adsorption friction catalytic disk (22), and the depth is 2%-50% of the thickness of the upper adsorption friction catalytic disk (22). The lower surface adsorption diffusion grooves (2221) of the upper adsorption friction catalytic disk (22) extend radially outward from the center and deflect towards the rotation direction of the integrated upper grinding disk (12). The concave side of the arc faces the rotation direction of the integrated upper grinding disk (12). 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. The receiving diffusion grooves (2211) on the upper surface of the upper adsorption friction catalytic disk (22) and the lower surface adsorption diffusion grooves (2221) are alternately distributed.

6. The integrated adsorption-friction catalytic purifier with a mortar and disc according to claim 5, characterized in that, 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), and multiple arc-shaped upper friction diffusion grooves (2311) are uniformly arranged from the center outwards. From the starting point in the center direction to the ending point in the circumferential direction, 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 upper friction diffusion grooves (2311) extend radially from the center outwards and deflect in the opposite direction to the rotation of the integrated upper grinding disk (12). The concave side of the arc is in the opposite direction to the rotation of the integrated upper 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 periphery. From the starting point in the center direction to the end point in the circumferential direction, 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 periphery 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.

7. The integrated adsorption-friction catalytic purifier with a mortar and disc according to claim 6, characterized in that, 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.

8. The preparation method of the integrated adsorption-friction catalytic purifier according to any one of claims 1-7, 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: (a) Take calcium salt and titanium salt in a molar ratio of 1:1 to prepare calcium titanate sol. Take activated carbon with a mass ratio of calcium titanate to activated carbon of 1:(2-10). Immerse the activated carbon in the calcium titanate sol and place it in a heated vacuum container. Vacuum the container until the relative pressure reaches -0.09MPa and maintain the pressure for 30-60 minutes. Under continuous vacuum conditions, heat the container until the calcium titanate sol boils. Volatilize and concentrate the calcium titanate sol until it transforms into a gel. Return to normal pressure and continue drying at 105-125℃. Then calcine at 450-800℃ in the absence of air for 3-6 hours. Cool to room temperature to obtain calcium titanate-loaded activated carbon. (ii) According to the mass ratio, the ratio of calcium titanate-loaded activated carbon to barium titanate powder is (1-5):

1. Mix the calcium titanate-loaded activated carbon and barium titanate powder, ball mill until they can pass through a 500-mesh sieve, and ultrasonically disperse them in an ethanol solution containing 0.01-0.2% polyvinyl alcohol by mass to prepare a mixed suspension with a solid content of 1-20%. (III) Take porous ceramic discs with a porosity of 15-85% and a pore size of 50-1000 μm, process them into the required shape and size, and activate them by soaking in a 1%-6% sodium hydroxide solution. Aerate and extract for 10-60 min, wash with water until nearly neutral, dry, and immerse in the mixed suspension obtained in step (II). Place in a pressure vessel, and under ultrasonic oscillation conditions, simultaneously evacuate to a relative pressure of -0.09 MPa. Stop ultrasonic oscillation, maintain pressure and let stand for 30-60 min, restore to normal pressure, then pressurize to 0.5-2 MPa, let stand for 30-60 min, slowly restore to normal pressure, and remove the porous ceramic discs. Dry at 0-105℃, then take the mixed suspension obtained in step (II) and add it evenly dropwise until adsorption is saturated. Dry again at 80-105℃, repeat the dropwise drying process until it can no longer absorb. After drying, isolate it from air, raise the temperature to 280-290℃ at a rate of 1-3℃ / min, hold for 30-60min, continue to raise the temperature to 500-800℃ at a rate of 3-5℃ / min, hold for carbonization for 3-6h, cool to room temperature, place it in an activation furnace, pass supersaturated water vapor at 800-1000℃, activate for 20-60min, cool to room temperature, and dry to obtain the adsorption friction catalyst disk. (iv) Set up the required diffusion grooves according to the upper adsorption friction catalyst disk (22) and the lower adsorption friction catalyst disk (24) to obtain the upper adsorption friction catalyst disk (22) and the lower adsorption friction catalyst disk (24). B: The preparation method of the friction catalytic drive disk (23) is as follows: Take polytetrafluoroethylene material, process it into the required shape and size, and clean the surface with coarse sandpaper to obtain polytetrafluoroethylene blank; BaTiO3 nanoparticles were immersed in a 5-10% sodium hydroxide solution and sonicated for 30-60 minutes. After soaking for more than 24 hours, the nanoparticles were centrifuged and washed with barium titanate water until near neutral. Then, a 0.1%-0.5% polyethylene glycol PEG-4000 ethanol solution was added and sonicated until the nanoparticles were evenly dispersed to obtain a barium titanate suspension. This suspension was then evenly coated on the surface of a polytetrafluoroethylene (PTFE) preform. The ethanol was evaporated to remove the ethanol, resulting in a preform coated with barium titanate. Take a mold of the same shape as the friction catalytic drive disk (23), lay a layer of barium titanate nanopowder in the mold, place the blank coated with barium titanate in the mold, evenly sprinkle a layer of barium titanate nanopowder on the upper surface of the blank, add the mold cover, heat the mold to 220-260℃, apply a pressure of 1-5MPa at the same time to mold for 20-30min, cool to room temperature, take it out, remove the unbonded barium titanate powder on the surface, and install the rotating shaft at the center of the disk with a live joint to obtain the friction catalytic drive disk (23). C: Installation The purifier is installed according to the structure of the integrated mortar and disc adsorption friction catalytic purifier to obtain the integrated mortar and disc adsorption friction catalytic purifier.

9. The application of the integrated adsorption-friction catalytic purifier with mortar and disc as described in claim 7, characterized in that, For soil remediation involving fly ash detoxification from municipal solid waste incineration or organic pollution, the application method is as follows: Prepare the extract, close all valves of the equipment, place the extract in the storage tank (114) of the integrated adsorption friction catalytic purifier, open the inlet valve (112), start the pressure pump (113) so that the extract enters the inner cavity of the penetrating grinding pestle (11), and ensure that the extract continuously and evenly enters the mortar and pestle through the penetrating micropores (110) of the penetrating grinding pestle. Turn on the drive motor (1252) of the integrated mill, drive the upper grinding disc (12) of the integrated mill (12) to rotate through the drive wheel (1251), and drive the friction catalytic drive disc (23) to rotate synchronously through the rotating shaft (124). Adjust the gap between the mortar and pestle and the mill pressure through the elastic buffer (118). Take fly ash from waste incineration or contaminated soil, pass it through a 50-mesh sieve, and add it to the collection hopper (122). Under the action of the rotation of the integrated upper grinding disc (12) and the pusher (111), the fly ash or contaminated soil enters the gap between the pestle and mortar and mixes with the extract. The grinding reaction forms a mixed liquid, which gradually and continuously enters the discharge port (123). The integrated upper grinding disc (12) continues to rotate, and the mixed liquid is evenly coated on the inner ring of the lower grinding surface through the distribution groove (1231). Under the action of the grinding guide ridge (1201) on the upper grinding surface (120) and the grinding guide groove (1301) on the lower grinding surface (130) of the lower grinding disc (13), it enters between the integrated upper grinding disc (12) and the lower grinding disc (13). The liquid further rubs and reacts, and diffuses to the outer edge of the grinding surface; simultaneously, the suction valve (213) is opened, the vacuum pump (214) is turned on, and the filter friction catalytic adsorption purifier (2) is evacuated. The annular filter cloth is laid on the upper surface of the filter ring plate (21) through the layer (216). When the liquid is pushed to the filter ring plate (21) on the outer ring of the lower grinding surface (130), under the action of vacuum force, 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); simultaneously, the friction pressure adjustment knob (26) is adjusted so that the friction catalytic drive disk (23) drives the upper adsorption friction catalytic disk (22) and the lower adsorption friction catalytic disk (24) to be lower than the friction catalytic drive disk (214) through friction. 3) As the rotation speed increases, a speed difference is formed between the upper adsorption friction catalytic disk (22) and the friction catalytic driving disk (23), and between the friction catalytic driving disk (23) and the lower adsorption friction catalytic disk (24). The filtrate passing through the filter ring plate (21) falls onto the upper surface of the rotating upper adsorption friction catalytic disk (22), and is distributed and diffused through the receiving diffusion groove (2211). The main stream diffuses and is adsorbed through the micropores on the upper adsorption friction catalytic disk (22), and diffuses into the friction surface between the upper adsorption friction catalytic disk (22) and the friction catalytic driving disk (23). Simultaneously, under the push of the lower surface adsorption diffusion groove (2221) and the upper friction diffusion groove (2311), it diffuses towards the outer edge of the friction catalytic driving disk (23), and diffuses through the friction. The outer edge of the catalytic drive disk (23) enters the gap between the filter friction catalytic adsorption purifier cavity wall. Under the action of the lower friction diffusion groove (2321) of the lower friction catalytic surface (232) of the friction catalytic drive disk (23) and the diffusion groove (2411) on the upper surface of the lower adsorption friction catalytic disk (24), it enters between the friction catalytic drive disk (23) and the lower adsorption friction catalytic disk (24) and continues friction catalysis. It diffuses and adsorbs in the micropores on the lower adsorption friction catalytic disk (24). The purified liquid enters the filter friction catalytic adsorption purifier (2) cavity. When the liquid level in the cavity is close to the support net (25), the drain valve (252) and drain pump (253) on the drain pipe are opened to discharge the treated extract into the collection tank (254).Adjust the working state of the scraper (215) by adjusting the scraper adjustment knob (218), and scrape the dried solid filter cake to the mud collection trough (211), and discharge it to the mud collection trough through the mud discharge port (2111).

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