3600 results about "Dehydration" patented technology

The invention discloses a catalyst used for preparing acrylic acid and butyl ester by the dehydration of butyl lactate and a preparation method thereof. The catalyst is a composite catalyst, comprising a main catalyst A and auxiliary catalysts B, C, D and E, wherein, A is calcium sulphate, B is sulphuric acid, C is phosphate, D is alkaline matter and E is promoter. The preparation method comprises the steps as follows: five compositions A, B, C, D and E are sufficiently mixed, baked for 2-10 hours at the temperature of 200-800DEG C and formed for standby. The catalyst has high catalytic activation; under the catalysis of the catalyst, the molar yield reaches 75.1 percent and the molar selectivity of the acrylic acid and butyl ester reaches 71.5 percent. The preparation method has the advantages that the crystal structure of the main catalyst can be improved so as to be beneficial for carrying out the reaction; and the introduction of different auxiliary catalysts and quantities is helpful to improve the conversion ratio of the raw material and the product selectivity and is beneficial for improving the strength of the catalyst.

The invention discloses a rapid tubular induced crystallization reaction process and device for fluorine-containing wastewater, the device comprises a tubular reactor, a crystal sedimentation tank and crystal dehydration equipment, the fluorine-containing wastewater is pumped from a water inlet at one end of the tubular reactor, calcium liquid is pumped from dosing ports at intervals on the tubular reactor along the flowing direction of the wastewater at a set flow rate, and the calcium liquid is pumped from the dosing ports at intervals along the flowing direction of the wastewater; the fluorine-containing wastewater reacts with a calcium agent in the tubular reactor to generate calcium fluoride crystals with the particle size range of 10-80 microns, a mixture is discharged into a crystal sedimentation tank through a water outlet in the other end of the tubular reactor, clear water is discharged from a water outlet in the upper portion of the crystal sedimentation tank, and crystal slurry sinking to the bottom of the crystal sedimentation tank is pumped into a cyclone separator through a crystal discharging pump; large-particle crystals discharged from an outlet in the lower end of the cyclone separator are collected by a crystal collection pool and are regularly discharged into crystal dehydration equipment for dehydration, small-particle crystals discharged from an outlet in the upper end of the cyclone separator flow back to the water inlet end of the tubular reactor, the reactor is small in size and low in investment, and the stability of the calcium fluoride crystal product quality is guaranteed.

The invention relates to the technical field of oral liquid bottle cleaning and sterilizing, in particular to an oral liquid filling bottle body cleaning and sterilizing device. Comprising a case, an inner frame is arranged in the case, a motor, an inner gear ring and an outer gear ring are fixedly mounted on the inner frame, an intermittent shaft and a revolution shaft are rotatably mounted on the inner frame, two transmission interruption areas are arranged on the inner frame and correspond to the position between the inner gear ring and the outer gear ring, and a transmission wheel is mounted at the output shaft end of the motor; three fan-shaped tooth sections and three tooth-free arc sections are alternately arranged on the transmission wheel, the central angles of the three fan-shaped tooth sections are gradually increased by 30 degrees in the clockwise direction, and a driven gear meshed and matched with the fan-shaped tooth sections is mounted on the intermittent shaft. The device has the beneficial effects that through precise linkage of the motor, the transmission wheel, the variable-speed shaft, the inner gear ring and the outer gear ring, a stepped dehydration system is constructed, and the problem that stubborn water stains of traditional oral liquid bottle cleaning and sterilizing equipment are difficult to peel off is solved.

The invention relates to the field of medical materials and medical instruments, and discloses a dry bioprosthetic valve and a preparation method thereof.The preparation method comprises the following steps that S1, pericardium and a cross-linking agent solution are mixed for a cross-linking reaction; s2, carrying out first dehydration treatment on the crosslinked pericardium by adopting a first dehydration solution with gradually increased concentration gradient under an ultrasonic condition; and S3, carrying out second dehydration treatment on the pericardium subjected to the first dehydration treatment by adopting a second dehydration solvent, so as to obtain the dried bioprosthetic valve. According to the preparation method provided by the invention, ethanol, isopropanol and water in a specific proportion are adopted to prepare a dehydration solution with gradient concentration, and two-step dehydration drying is carried out in combination with the physical effect of an ultrasonic technology and glycerol, so that rapid rehydration of the bioprosthetic valve is realized, and the original shape and mechanical property of the bioprosthetic valve can be better recovered after rehydration; and the immediate hemodynamic stability of the valve is improved.

The invention discloses a gradient frame membrane and separation application thereof. An integrated gradient membrane material is constructed in a mode of functional group sharing, metal node sharing or skeleton interpenetration, and target molecule recognition sites are designed by utilizing the advantage that a framework material is easy to modify, so that the separation performance is remarkably improved. The gradient film structure comprises a metal organic-metal organic framework gradient film, a metal organic-covalent organic framework gradient film and a covalent organic-metal organic framework gradient film. The invention introduces a new structure of a metal organic framework-covalent organic framework gradient film and a construction strategy thereof in detail. The preparation method comprises the steps of preparing a bottom layer film structure from bottom to top, then preparing a top layer film structure on the bottom layer film structure, performing post-modification and the like. By designing a specific asymmetric porous structure and adsorption sites, the membrane shows excellent ethylene / ethane, propylene / propane, ion screening and organic matter dehydration separation performance under the dual action of adsorption selection and shape-selective screening.

The invention provides a method for recovering Si, C and TiO2 based on chlorinated waste salt water quenching slag, which comprises the following steps: sequentially carrying out water quenching dissolution, precipitation separation and filter pressing dehydration treatment on chlorinated waste salt to obtain water quenching slag and supernate; adding a dilute acid solution into the water-quenched slag, dissolving, and adding a reducing agent for reaction to obtain slurry; carrying out solid-liquid separation on the slurry to obtain a solid material and filtrate; the filtrate is pumped into a boiling bed separator, the petroleum coke and TiO2 are intercepted by a medium material layer, clear liquid is discharged, then the medium material layer is subjected to backwashing regeneration, and the desorbed petroleum coke and TiO2 are subjected to graded enrichment by a hydrocyclone, so that petroleum coke slurry and TiO2 slurry are obtained. According to the method, TiO2, C and other resources in the water-quenched slag obtained after molten salt chlorination waste salt water quenching are recycled, and the technical problem that in the existing chlorination waste salt resourceful treatment process, Si, C, TiO2 and other resources in the water-quenched slag are wasted is solved.

The invention relates to the technical field of multi-drum washing machines, in particular to a dehydration control method of a multi-drum washing machine and the multi-drum washing machine, and aims to solve the problem that when two or more washing drums of an existing multi-drum washing machine enter a dehydration procedure, dehydration requirements conflict exists between the two or more washing drums. In order to achieve the purpose, the dewatering control method comprises the steps that whether a plurality of washing drums are small drums or not is judged; when the plurality of washing drums are all small drums, the plurality of washing drums are controlled to independently execute dehydration operation; and when at least one of the plurality of washing drums is a large drum, controlling one or a group of washing drums to perform dehydration operation, and stopping the other washing drums or rotating at a low speed or rotating reversely. According to the invention, the dewatering sequence under the condition that the dewatering stages of the plurality of washing drums are overlapped is limited, so that the resonance of the whole machine caused by mutual dewatering conflicts can be avoided, the washing effect is ensured, and the washing efficiency can be improved.

To provide a method for preparing a flavor composition dehydrated and de-alcoholized from a strong alcoholic flavor composition, flavor compositions obtainable by the method, and flavored consumer products comprising the compositions.SOLUTION: There is provided a method for preparing a flavor composition by decreasing or removing water and ethanol from a strong alcoholic flavor composition, the method comprising the steps of treating the strong alcoholic flavor composition by a dehydration process and a dealcoholization process.SELECTED DRAWING: None

The invention provides a method for preparing high-purity hafnium tetrachloride by wet extraction and separation, which comprises the following steps: stirring and leaching hafnium alloy waste serving as a raw material by using HNO3 and HF mixed acid, then adding thioacetamide, adjusting the pH value to 4-5, stirring and filtering; compounding tributyl phosphate, trioctylphosphine oxide and sulfonated kerosene to obtain a composite extracting agent, and stirring and mixing to form a homogeneous organic phase; in a hydrochloric acid medium, controlling the volume ratio of an organic phase to a water phase to be (2.5-3.5): 1, carrying out three-stage counter-current extraction, and standing for phase splitting; the extracted organic phase passes through an adsorption column filled with iminodiacetic acid modified silica gel; and carrying out reverse extraction by using a hydrochloric acid solution, and then carrying out reduced pressure evaporation concentration, cooling crystallization and dehydration to obtain hafnium tetrachloride. According to the method, the zirconium and hafnium separation efficiency in the hafnium tetrachloride preparation process is improved, and the problem that the content of zirconium and hafnium impurities in the product is too high is solved.

The invention relates to a gas nanometer purification method and a purifier, and the method comprises the following steps: gas to be cleaned enters a gas-water separator for gas-liquid separation and coarse filtration, liquid impurities and large-particle solid impurities in the gas are removed, and preliminarily purified gas is obtained; on the basis of switching logic, the preliminarily purified gas is alternately conveyed to two adsorption unit groups for deep adsorption purification, adsorbent dehydration treatment and fine dust interception treatment are sequentially completed in the adsorption units, and clean gas is obtained; one part of the clean gas is conveyed to the gas storage bin to be stored, and the other part of the clean gas is conveyed to the regeneration gas bin to be pre-stored for regeneration cycle of the subsequent adsorption unit. Through the integrated method design of continuous adsorption working conditions, online regeneration cycle and automatic pressure equalizing switching, seamless connection of adsorption and regeneration and uninterrupted gas supply in the whole process are achieved, gas supply interruption and severe gas pressure fluctuation are effectively avoided, and the strict use requirements of precise manufacturing, automatic production lines and continuous production scenes for stable gas sources can be met.

The invention discloses a novel corrugated paper squeezing device which comprises bearing frames, a conveying belt and a squeezing assembly used for squeezing corrugated paper, the number of the bearing frames is two, the conveying belt is located between the two bearing frames, a fixing frame is arranged at one end of each bearing frame, and a first squeezing roller and a second squeezing roller are arranged in each fixing frame; and the first extrusion roller and the second extrusion roller are symmetrically arranged up and down. The squeezing flannelette outside the conveying belt can reduce tile paper friction, avoid surface scratching and assist in absorbing a small amount of water, the synchronizer controls the electric push rod to stretch out and draw back synchronously and is matched with the guide rod to enable the rotating roller to press the tile paper evenly, local overpressure damage or non-uniform underpressure dehydration is prevented, the water collecting box can collect extruded water, and the valve can drain water in time. Accumulated water is prevented from polluting equipment or flowing back, consumption of follow-up clean water is reduced, residual moisture of the corrugated paper can be further removed through secondary squeezing, moisture residues are greatly reduced, drying power does not need to be additionally increased, and power consumption is reduced.

The invention discloses a low-energy-consumption skid-mounted integrated NMP high-efficiency rectification device, and particularly relates to the technical field of chemical engineering, the low-energy-consumption skid-mounted integrated NMP high-efficiency rectification device comprises a mounting skid seat, a secondary dehydration tower, a primary dehydration tower, a primary rectification tower, a secondary rectification tower and a reboiler; the secondary dehydrating tower is detachably connected with the mounting prying seat through a bolt A; the primary dehydrating tower is detachably connected with the mounting prying seat through a bolt B; the primary rectifying tower is detachably connected with the mounting prying seat through a bolt C; the secondary rectifying tower is detachably connected with the mounting prying seat; the reboiler is communicated with the secondary dehydrating tower; the device is reasonable in structural design, and on the basis of the core principle of NMP rectification recovery, by optimizing the rectification process design, efficiently utilizing heat energy, only needing single heating and greatly reducing the heating times of waste liquid, the energy loss is fundamentally reduced, and the energy consumption is obviously saved; meanwhile, the overall height of the device is controlled to be less than ten meters, the requirement for the site space is greatly reduced, and the device can flexibly adapt to the land use situations of more enterprises.

The invention relates to the technical field of edible oil processing, and discloses a continuous refining method for edible oil, which is characterized by comprising the following steps: raw material filtration, degumming, alkali refining deacidification, soapstock and water washing, dehydration treatment, decoloration treatment, filtration separation and deodorization treatment. According to the continuous refining method for the edible oil, continuous operation is achieved in the whole refining process, all procedures are closely linked from pretreatment of crude oil to output of final refined oil, the production efficiency is greatly improved, compared with an intermittent refining process, the production efficiency is improved, the requirement of large-scale production can be met, and the production cost is reduced by optimizing process parameters. And for example, the reaction of each process is carried out at proper temperature, pressure and stirring speed, so that unnecessary energy consumption is reduced. And meanwhile, the starting and stopping times of equipment are reduced through continuous production, and the energy loss is further reduced. Practical production verifies that compared with a traditional process, the refining method has the advantages that the energy consumption is reduced, and the production cost is effectively saved.

The invention relates to a thermochemical energy-storage heat-preservation coring device and method for oil and gas coring, magnesium sulfate heptahydrate is preset in an interlayer of a heat-preservation cylinder of the coring device, the underground temperature is stored by utilizing dehydration and heat absorption of the magnesium sulfate heptahydrate, and then the stored heat energy is released by utilizing water absorption and heat release of the magnesium sulfate to carry out core heat preservation. The thermochemical energy storage thermal insulation structure comprises a thermal insulation cylinder and a thermal insulation trigger device, wherein a thermochemical energy storage material and reactant water are placed in an interlayer in the thermal insulation cylinder; the heat preservation trigger device comprises a trigger probe, a self-trigger and a trigger spring. The underground temperature is stored through dehydration and heat absorption of the magnesium sulfate heptahydrate, the stored heat energy is released through water absorption and heat release of the magnesium sulfate for rock core heat preservation, and extra energy supply is not needed; meanwhile, the magnesium sulfate heptahydrate is non-toxic and stable in property, can store different heat in different temperature stages, and is suitable for heat preservation coring of different reservoir depths.

The invention discloses a supercritical carbon dioxide thermosetting foaming polyurethane foam preparation method, which comprises: 1, preparing a polyurethane prepolymer: adding 20-80 parts by mass of a bifunctional polyol and 80-20 parts by mass of a trifunctional polyol into a reaction kettle, and carrying out vacuum dehydration at a temperature of 60-90 DEG C for 30-90 min; the addition amount of the isocyanate is 40%-200% more than that of the isocyanate group relative to the polyol, after the slurry continues to react for 2-5 hours at the temperature of 60-90 DEG C, an end-capping reagent is added, and the slurry continues to react for 1-3 hours. 2, mixing the materials, namely mixing the polyurethane prepolymer with 1, 4-butanediamine, and uniformly stirring; and 3, preparing the supercritical carbon dioxide foam. The preparation method has the beneficial effects that the foam prepared by the method is uniform and stable in foam hole size, and the performance requirements of high strength, abrasion resistance, high temperature resistance and corrosion resistance can also be met.

The invention relates to a preparation method of high-purity vanadium pentoxide, in particular to the field of high-purity vanadium pentoxide, which comprises the following steps: adding an impurity removal agent into a phosphorus-containing vanadium solution to remove impurities, and then carrying out solid-liquid separation to obtain filtrate; the obtained filtrate is sequentially subjected to first pH value adjustment, second pH value adjustment, ammonium salt vanadium precipitation, dehydration, calcination deamination and melting, and high-purity vanadium pentoxide is obtained; wherein the impurity removing agent is prepared from calcium salt and a flocculating agent; the final pH value of the first pH value adjustment is 4.5-5.5; the final pH value of the second pH value adjustment is 1.8-2.2. According to the preparation method provided by the invention, the vanadium in the vanadium liquid is efficiently recovered by matching the metallographic phase specific impurity removal process of the vanadium liquid with pH value adjustment, the purity of the obtained vanadium product is greater than or equal to 99.9%, and the recovery rate of the vanadium is greater than or equal to 98%.

The utility model discloses a pre-treatment promoting device for fruits with waxy epidermis, which adopts a cold plasma jet device to release jet cold plasma to an objective table, so as to change charge distribution on the waxy epidermis surface by using a variable electric field and generated free radicals and free electrons in the discharge process of the jet cold plasma. Meanwhile, due to the etching effect of jet flow cold plasma treatment, wax on the epidermis of the fruits with wax on the epidermis is broken, a new moisture diffusion channel is formed, and therefore the diffusion rate and quality of the moisture of the fruits in the drying process are improved. The device is suitable for pre-treatment of fruits with waxy epidermis, has the advantages of rapid and efficient dehydration and drying and continuous drying promotion treatment of the fruits, is simple and convenient to operate, mild in condition, green and safe, remarkable in drying promotion effect, high in treatment speed and more environment-friendly, gets rid of dependence of dipping and drying promotion by using a chemical drying promoter at present, and has a wide application prospect. The drying quality and the eating safety of the fruits with waxy epidermis are improved.

The invention relates to a waste water auxiliary drainage device for a rotary screen paper machine, which comprises a composite roller, a waste water drainage device and a waste water drainage device, wherein the composite roller is used for extruding coarse cotton cloth and is positioned above a screen part; the water guide mechanism is used for guiding and draining water extruded from the coarse cotton cloth; the water guide mechanism comprises a drainage assembly used for guiding water out; the energy reducing assembly is used for reducing the impact potential energy of water on the drainage assembly; and the water guide mechanism is arranged behind the composite roller along the motion direction of the coarse cotton cloth. According to the rotary screen paper machine, a traditional linear mop is improved into an innovative and adjustable splayed totally-closed dewatering device, so that the problem of water removal in a composite area of the rotary screen paper machine is successfully solved, and the quality of a final product is effectively improved.

The invention discloses a device and method for efficiently purifying and lifting a water body based on aquatic plants, and relates to the technical field of water body treatment. The device comprises a frame, a water body purification mechanism is arranged in the middle of the frame and used for planting aquatic plants, and the water body purification mechanism comprises a lifting assembly which comprises an inner shell fixedly installed in the middle of the frame, and two symmetrically-distributed rotating shafts are rotationally installed in the middle of the inner shell; the waterproof motor drives the rotating shaft to rotate, the driving bevel gear and the driven bevel gear are driven to be in meshing transmission, the screw rotates synchronously, then the fixing frame and the planting platform are pushed to move up and down, and the root soaking depth can be dynamically adjusted according to aquatic plant varieties such as emergent aquatic plants and submerged plants or water level changes; the plant root system is ensured to fully contact with the polluted water body to efficiently absorb pollutants such as nitrogen and phosphorus, and meanwhile, plant submerging caused by too high water level or root system dehydration caused by too low water level is avoided, so that the purification efficiency is remarkably improved.

The invention provides a recycled aggregate product, a preparation method thereof and recycled concrete, and belongs to the technical field of recycling of building materials. The preparation method of the recycled aggregate product comprises the following steps: S1, crushing waste concrete to obtain crushed concrete; then carrying out sorting treatment and magnetic separation treatment on the crushed concrete to obtain concrete subjected to impurity removal; the concrete subjected to impurity removal is screened, and initial recycled aggregate is obtained; s2, performing soaking treatment on the initial recycled aggregate by adopting strengthening liquid, and then performing dehydration treatment to obtain strengthened recycled aggregate; wherein the strengthening liquid is prepared from potassium silicate, vinyl acetate-ethylene copolymer emulsion, nanometer aluminum oxide, a dispersing agent and water; s3, calcining the reinforced recycled aggregate to obtain a recycled aggregate product. According to the preparation method, high-value utilization of the waste concrete can be achieved, and the obtained recycled aggregate product is excellent in performance.

The invention belongs to the technical field of fine chemical organic synthesis, and discloses a synthesis method of 1, 3-propane sultone without generation of three wastes. The synthesis method comprises the following steps: by taking allyl alcohol, sulfite and hydrosulfite as raw materials, generating 3-hydroxy propanesulfonate; then removing part of water, adding a solvent A to separate out sulfite, filtering, and adding sulfuric acid into filtrate for acidification; and adding a solvent B to separate out sulfate, filtering and separating out the sulfate, and adding a dehydrating agent to carry out dehydration cyclization reaction to prepare the 1, 3-propane sultone. According to the synthesis method provided by the invention, a 1, 3-propane sultone product with the yield not lower than 95% and the purity reaching 99.9% or above and a sulfate byproduct with the purity reaching 99.6% or above can be obtained; no waste gas, waste solid or waste water is generated in the reaction process, the catalyst sulfite can be repeatedly used, and the used solvent is easy to recover and can be repeatedly used.

The invention relates to the technical field of rice bran processing, and discloses a rice bran degreasing and nutrition retention edible process synergistic treatment method which comprises the following steps: (a) in an NADES-aqueous solution medium, adding an immobilized catalyst A, and hydrolyzing ferulate bonds and phospholipids in rice bran at low temperature; (b) carrying out intermediate dehydration on the slurry obtained in the step (a) to reduce the water activity; (c) adding an immobilized catalyst B into the dehydrated slurry in the step (b), carrying out esterification reaction, and grafting free ferulic acid generated by hydrolysis to glyceride in situ; and (d) carrying out solid-liquid separation on the slurry obtained in the step (c) to obtain finished oil and finished powder. According to the method, an NADES medium is adopted to replace an organic solvent, the whole process is carried out at low temperature, degradation of heat-sensitive nutrient substances is avoided, and resource utilization of ferulic acid is achieved. The prepared functional rice bran oil is rich in feruloyl glyceride, total tocopherol and oryzanol, and is low in acid value and peroxide value.

According to the technical scheme, the kitchen garbage dehydration device is characterized by comprising a shell, the top face of the shell is connected with a feeding box, a treatment groove is formed in the shell, and the interior of the treatment groove is connected with a treatment box; the feeding pipe is connected to the interior of the feeding box, and the other end of the feeding pipe is connected to the interior of the processing box; the dewatering assembly is arranged in the shell and used for dewatering kitchen garbage, the dewatering assembly comprises an air cylinder, the air cylinder is connected to the top face of the shell, a telescopic shaft of the air cylinder extends to the treatment box, one end of the telescopic shaft of the air cylinder is connected with an extrusion block, and a discharging opening is formed in one side of the treatment box. Garbage enters the treatment box through the feeding pipe, the air cylinder is started, the extrusion block is pushed through the telescopic shaft of the air cylinder, the garbage is extruded through the extrusion block, water in the garbage is discharged, and the purpose of garbage dehydration is achieved.

The present invention belongs to the technical field of the treatment of solid waste. Disclosed is a method for preparing a CO-rich fuel gas on the basis of a gasification slag smoldering technique. The method is carried out in a smoldering reaction device. By combining a smoldering treatment technique with the processes of drying, dehydration, pyrolysis, gasification, oxidation, etc., of gasification slag and controlling corresponding reaction conditions, a CO-rich fuel gas with a low oxygen concentration can be ultimately prepared, thereby achieving the efficient utilization and harmless treatment of gasification slag. In the method for preparing a CO-rich fuel gas on the basis of a gasification slag smoldering technique in the present invention, the steps are simple, and the control involved therein is convenient and fast; by means of fully combining the smoldering treatment technique with the processes of drying, dehydration, pyrolysis, gasification, oxidation, etc., of the gasification slag, the efficient treatment of the gasification slag can be achieved, the CO-rich fuel gas with a low oxygen concentration is obtained, and combustible components in the gasification slag are fully recycled, thereby achieving the recycling of resources and adequately ensuring the availability of the recycled resources; and the method has very high economic value.

The invention relates to the technical field of film strain, in particular to a preparation and installation method of a film strain sensor and a harmonic reducer. The preparation and installation method comprises the steps that the surface of a workpiece to be installed is coated with a polyamide acid solution, then heating is conducted, and polyamide acid is subjected to dehydration cyclization to form a polyimide film attached to the surface of the workpiece to be installed; and then, forming a laser-induced graphene electrode pattern on the polyimide film. The harmonic reducer comprises a wave generator, a rigid gear, a flexible gear and a thin film strain sensor, the flexible gear is connected into the rigid gear in a toothed mode, and the wave generator is arranged in the flexible gear; the film strain sensor comprises a strain film and a graphene electrode, the graphene electrode is formed on the strain film, and the strain film is in direct contact connection with the surface of the flexible gear. Through the film strain sensor adhered to the surface of the workpiece to be installed, in-situ torque detection can be achieved, measurement errors, hysteresis, instability and the like caused by a glue joint layer are avoided, and measurement is more accurate.

The invention belongs to the technical field of tea processing, and particularly relates to a high-precision grading and directional processing system for Qihong tea. The system comprises an intelligent tea leaf grading module based on hyperspectral imaging and machine vision, wherein the intelligent tea leaf grading module is used for realizing accurate classification of raw materials; an AI-controlled dynamic withering module is used for optimizing enzyme activity and water evaporation; a pressure-rotating speed self-adaptive intelligent rolling module ensures that cells are uniformly broken; an electronic nose is combined with a multispectral real-time fermentation monitoring module to accurately control the fermentation degree; a far infrared-hot air coupled precise drying module is used for realizing gradient dehydration; the near infrared spectrum and deep learning quality detection module is used for completing finished product quality evaluation; the data traceability module of the block chain technology is used for recording whole-process processing parameters; and a big data-driven process optimization module continuously improves the product stability. According to the invention, the intellectualization, precision and standardization of the Qihong Huang tea processing process are realized, and the consistency and the superior product rate of the product quality are obviously improved.

Devices, systems, and techniques can be provided for processing an oil-containing material with an alcohol-based solvent to extract oil from the material. In some examples, a system includes a pretreatment dehydration vessel that removes water from the oil-containing material prior to processing the oil-containing material in an extractor to extract oil from the material. An alcohol-based solvent may also be supplied to the dehydration vessel to remove water from the oil-containing material, thereby generating a dehydrated material that can be extracted in a downstream extractor.

The utility model discloses a dehydration device for kitchen waste pretreatment, which comprises a box body arranged on a rack, a feed port is arranged on the box body, an extrusion block is arranged in the box body in a vertical sliding mode, the extrusion block is connected with a piston rod of a first air cylinder, the first air cylinder is fixedly arranged at the top end of the box body, and the feed port is arranged on the box body. A cutter assembly and a drainage assembly are sequentially arranged below the box body, a plurality of cutter grooves matched with the cutter assembly are formed in the bottom of the box body, and a spraying assembly is arranged on one side of the cutter assembly; the kitchen garbage dehydration device has the advantages that the pneumatic extrusion block is designed to dehydrate kitchen garbage, plant fiber garbage with high toughness is cut while dehydration is carried out, the failure rate of equipment is reduced, residual materials after dehydration are conveniently and smoothly discharged, the dehydration efficiency is high, and the labor intensity of workers is reduced. And a spraying device is designed to spray and clean the cutter assembly regularly, cleaning is reliable, and the device is worthy of application and popularization.

The present application relates to pulping technology field, the present application provides a kind of high-strength high-cleanliness chemical pulp's pulping process, with bamboo willow edge scrap as fiber raw material, after 1 stage pre-steaming, chip washing, dehydration, 2 stage pre-steaming;The wood chip material after 2 stage pre-steaming is 1 stage extrusion and is dissolved, 1 stage chemical liquid pre-impregnation, 2 stage extrusion and is dissolved, 2 stage chemical liquid pre-impregnation;1 stage chemical liquid pre-impregnation uses sodium hydroxide solution and does not use hydrogen peroxide, the chemical reagent of 2 stage chemical liquid pre-impregnation process is sodium hydroxide, hydrogen peroxide and sodium silicate;Material after 2 stage chemical liquid pre-impregnation is 1 stage refining, separation, cooling, 1 stage high-concentration bleaching, 1 stage dehydration, 2 stage high-concentration bleaching, 2 stage dehydration;Pulp after 2 stage dehydration is latent, refining etc., and the finished product is prepared.This application process can produce high-strength, high-cleanliness chemical pulp, and the pulp cost is lower, and the pulp quality is better, and it is beneficial to high-end cultural paper etc. application.

Disclosed are a fluidized bed separation method and device for methanol-to-olefins quenched water. The method may subject quenched water to liquid-solid separation via a micro-cyclone separator. The method may also subject clear liquid from the micro-cyclone separator to a secondary separation via a fluidized bed separator, then sending the same to an olefin separation device, then recovering some waste heat of the quenched water, and then returning the same to a quenching tower after performing heat exchange. The method may also regenerate a separation medium by reversely feeding stripping tower purified water or quenched water, so as to release catalyst particles absorbed by the separation medium. The method may also send a catalyst slurry concentrated by the micro-cyclone separator and the fluidized bed separator to a filter-press unit for filter-press dehydration, so as to recover a catalyst.