5474 results about "Filter press" patented technology

The invention provides a plate-and-frame filter press, and belongs to the technical field of plate-and-frame filter presses. Comprising a filter press body, the driving assembly has reciprocating displacement along the length direction of the filter press body; the scraper assembly is connected to the filter press body in a sliding manner; the scraper assembly at least comprises a scraper; an included angle a is formed between the scraper and the gravity direction; the included angle a is increased or decreased according to the weight b of the filter cake; the moving distance L of the previous plate frame driven by the driving assembly is increased or decreased under the control of the weight b of the filter cake. The included angle of the scraping plates is adjusted according to the weight of a filter cake, smooth stripping of the filter cake is ensured, particularly, the filter cake with high water content and high weight can be scraped cleanly, residues are avoided, and abrasion of equipment is reduced by reducing unnecessary displacement distance and reducing friction between the guide rail and the plate frame.

The invention discloses a method for removing lead and supplementing nickel from electrodeposited nickel anolyte, which relates to the technical field of nickel wet smelting, is used for purifying and removing lead from anolyte of a pure sulfuric acid system, and comprises the following steps of: adding the electrodeposited anolyte into refined nickel sulfate oil-removed liquid and nickel carbonate slurrying liquid, introducing air, controlling the temperature, and entering an acid dissolution lead removal tank for acid dissolution; and filtering the acid-dissolved solution through an acid dissolution filter press, pumping the obtained primary filtrate into a precision filter, pumping the obtained secondary filtrate into a secondary filtrate storage tank, pumping the secondary filtrate into a catholyte tank through a secondary filtrate delivery pump, and enabling the obtained catholyte as an electrodeposition cell catholyte to enter an electrodeposition process. The method has the advantages of being short in technological process, high in lead removal efficiency, simple and convenient to use, easy to filter, low in energy consumption, capable of recycling the falling solution, convenient for industrial production and the like.

The present invention belongs to the field of resource utilization of building materials and solid waste, and relates to a red-mud-based cementing material based on efficient drying, component homogenization and activity improvement, and a preparation method therefor. The preparation method comprises: adding a filter aid to red mud to carry out sedimentation, then subjecting same to filter pressing until the water content is 14-16%, then drying the solid material, which has been subjected to filter pressing, until the water content is 4% or below, and finally grinding same to obtain the product. The filter aid comprises the following raw materials: 10-30 parts of polyaluminum chloride, 5-15 parts of polyaluminum sulfate, 1000-1200 parts of blast furnace slag or fly ash, 700-900 parts of steel slag, 400-600 parts of carbide slag or alkaline residues, and 300-400 parts of desulfurized gypsum or phosphogypsum or fluorgypsum. By means of the present invention, the dehydration efficiency of red mud can be improved, the red-mud-based cementing material can also be prepared in one step; the preparation process for the red-mud-based cementing material is simplified; and the prepared red-mud-based cementing material has the advantages of a high mechanical strength, high durability and erosion resistance.

The invention provides an iron and steel enterprise high-salt wastewater and high-salt solid waste collaborative resource utilization system which is characterized in that firstly, non-magnetic fly ash in sintering machine head fly ash is screened out through a pretreatment module; carrying out multi-stage washing and filter pressing treatment on slurry obtained by mixing the non-magnetic dedusting ash, the blast furnace gas condensate water and the strong brine of the desalting water station through a multi-stage washing and filter pressing module to obtain multi-stage washing ash and multi-stage ash washing brine; finally, carrying out purification and separation treatment on the multi-stage ash washing brine through a purification and separation module to obtain industrial-grade NaCl, industrial-grade KCl and devitrification mother liquor; according to the method, non-magnetic fly ash, blast furnace gas condensate water and strong brine of a desalting water station are used as raw materials, the problem of enrichment of alkali metal and chloride ions in a sintering machine system is solved through a series of co-processing technologies, and meanwhile industrial-grade NaCl and industrial-grade KCl are extracted from the blast furnace gas condensate water and the strong brine of the desalting water station. Therefore, the resource utilization rate is improved, and benefits are increased for iron and steel enterprises.

A filter press includes a fabric stacking device, a filter press frame assembly, and a filter press device. The filter press frame assembly includes a filter press frame and a base plate. The filter press device includes a base, a main hydraulic cylinder, and a pressure plate. The fabric stacking mechanism includes a frame, a filter cloth operating assembly, a sludge discharge mechanism, a sludge separating and pressing mechanism, a pressing roller, and a fabric stacking and feeding mechanism. The filter cloth operating assembly includes a cloth winding mechanism, a winding and measuring mechanism, and a filter cloth correction mechanism. The cloth winding mechanism includes a cloth winding roller that can move along its own axial direction and rotate around its own axis. The cloth winding roller adjusts its position by moving along its own axial direction according to the detection result of the winding and measuring mechanism. The sludge separating and pressing mechanism includes a pressing plate with a horizontally arranged pressing part. The setting height of the pressing roller is adjustable, and the axis of the pressing roller is perpendicular to the moving direction of the lower filter cloth. The fabric stacking and feeding mechanism is located at one end of the frame and is used to transport sludge bags formed by the upper and lower filter cloths wrapping sludge. This invention can automatically correct the filter cloth deviation, keep the filter cloth flat, and prevent sludge leakage.

The invention relates to the technical field of sewage treatment, and discloses spodumene flotation tailing water treatment equipment which comprises a plate-and-frame filter press and a feed flow real-time control system electrically connected with the plate-and-frame filter press. According to the system, a slurry characteristic coefficient, a power supply coefficient, a dynamic matching coefficient and a filter cloth state coefficient are respectively obtained in real time through a slurry state evaluation module, a power evaluation module, a process dynamic matching module and a filter cloth state evaluation module. And dynamically calculating and adjusting the target feeding flow by the feeding flow adjusting and controlling model according to the coefficients. According to the invention, through multi-parameter collaborative sensing and intelligent matching, the dynamic adaptation of the feed flow, the slurry characteristics, power supply and the state of the filter cloth is realized, the technical problems of poor adaptability, control lag, easy damage of the filter cloth and high energy consumption of the traditional plate-and-frame filter press under complex working conditions are effectively solved, and the treatment efficiency and the operation stability are remarkably improved.

The invention discloses a recycling multi-stage treatment method for copper-containing solid waste, and belongs to the technical field of recycling treatment of the copper-containing solid waste. The recycling multi-stage treatment method for the copper-containing solid waste comprises the following steps: (1) crushing the copper-containing solid waste to obtain pretreated copper-containing solid waste; (2) the pretreated copper-containing solid waste is added into a leaching agent and stirred, and a leaching solution and solid-phase residues are separated through a filter press; (3) adding an organic complexing agent into the leachate, stirring, carrying out solid-liquid separation to obtain a precipitate and a first waste liquid, carrying out washing, filter pressing and drying on the precipitate to obtain a copper-containing substance, and extracting and refining the copper-containing substance to obtain metal copper and a second waste liquid; (4) mixing the first waste liquid and the second waste liquid, and filtering to obtain dischargeable water; and (5) adding a stabilizer into the solid-phase residues, heating and stirring to obtain a solidified body. The method can effectively improve the copper recovery rate and reduce environmental pollution.

The invention relates to the technical field of geotechnical engineering, in particular to a shield slurry flocculation filter pressing system based on machine learning, an optimization method and a computer readable storage medium, and the optimization method comprises the following steps: obtaining and preprocessing shield slurry data; selecting characteristic data of shield slurry; carrying out standardization and normalization processing; the feature data is divided into a training set and a test set; an improved neural network model is adopted for training; obtaining an optimal neural network model parameter by adopting a particle swarm optimization algorithm; deploying the trained neural network model into a shield mud flocculation filter pressing system; and comparing the shield mud prediction treatment effect obtained by the trained neural network model with the actual treatment effect of the shield mud to obtain the optimal parameters of the shield mud flocculation filter pressing system, and implementing the optimal parameters. And periodically detecting the performance of the neural network model. According to the shield slurry flocculation filter pressing system, the filter pressing speed is reasonably controlled through a machine learning method, the best filter pressing effect is achieved through intelligent adjustment, solidification of shield slurry can be completed in a high-quality mode, and mud cakes obtained after filter pressing can be recycled.

The invention discloses a waste incineration fly ash recycling water circulating water treatment device and method, the device comprises two racks arranged front and back, a blocking block is fixed to the left end between the two racks, an extrusion block is slidably connected to the right end between the two racks, and a plurality of filter pressing assemblies slidably connected with the racks are arranged between the blocking block and the extrusion block; knocking assemblies are arranged at the front end and the rear end of the filter pressing assembly, winding assemblies are arranged below the knocking assemblies, two bilaterally symmetrical discharging assemblies are arranged at the lower end of the filter pressing assembly, a fixing plate fixedly connected with the rack is arranged at the right end of an extrusion block, a reciprocating assembly is arranged at the right end of the fixing plate, and a hydraulic cylinder and a servo motor are fixed to the left end of the fixing plate; the servo motor is in transmission connection with the winding shaft and the reciprocating shaft, the filter pressing assembly comprises an extrusion part, a cleaning part and a filtering part, and discharging is conducted through the discharging assembly, so that two different materials obtained after filter pressing are separated and discharged, and the two different materials are prevented from being mixed together.

The invention discloses a waste battery recycling process and a system thereof, and particularly relates to the technical field of battery recycling. Leaching an electrode material of the waste nickel-metal hydride battery; collecting rare earth elements; precipitating and separating ferro-aluminum; recovering zinc and manganese; recovering the cobalt-containing nickel hydroxide; the system comprises a battery disassembling and screening device, a magnetic separator, a filter press and a reaction kettle, and the filter press comprises a plurality of filter pressing assemblies and is used for filtering liquid; according to the device, a plurality of areas of the filter cloth can be twisted to be in a wrinkled state firstly, then the adjacent positions of the wrinkles are knocked by the adjacent vibration plates, the wrinkled state and the stretched state are switched while the multiple areas of the filter cloth vibrate, the shaking effect of the filter cloth can be enhanced in the switching process, solid particles are separated from the filter cloth more thoroughly, and the filter cloth can be separated more thoroughly. And the recycling rate of the waste battery pack is improved.

The invention discloses a filtering device for grain and oil production and a filtering method thereof, the filtering device is applied to the discharging end of a filtering tank, the filtering tank comprises a tank body, a feeding pipe and a discharging pipe, impurity filtering equipment comprises a filtering pipe, a filtering net plate and a filter pressing plate, and the filter pressing plate is in sliding and sealing connection with the inner wall of the filtering pipe. The filter pressing plate is arranged in the filter pipe in a manner of moving up and down, a plurality of flow guide holes are formed in the filter pressing plate, a sealing plate is arranged at the bottoms of the flow guide holes, adjusting blocks which are symmetrically distributed and can move up and down are arranged below the filter pipe, the filter screen plate is arranged at the bottom of the filter pipe, and the filter screen plate and the filter pipe are in sliding and sealing connection; a rotatable adjusting shaft is arranged on each adjusting block, and the adjusting shafts are fixedly connected with the filter screen plate. By means of the filter pressing mode, the discharging efficiency of materials in the tank body can be further improved, the problem that the filtering efficiency is reduced due to the fact that impurities at the filter screen plate are increased is effectively solved, and the overall filtering and separating efficiency is improved.

The embodiment of the invention discloses a multi-station sludge filter pressing system which comprises a first station and a second station, the first station and the second station are sequentially connected from front to back, and each of the first station and the second station comprises a sludge feeding module, a coating and separating module, a curing module and a frame; sludge is stirred through a stirring bin in the sludge feeding module and then enters a position between two layers of filter cloth through a spiral conveying pump; the coating and separating module is connected with the sludge feeding module, so that tensioning, flattening, cleaning and air-drying, detection and deviation correction and the like are carried out on the filter cloth, and the thickness of the module covering the upper layer and the lower layer of the filter cloth with sludge and single-layer sludge is adjusted; a pressure applying unit in the curing module extrudes and dries the sludge through a filter pressing frame, the sludge filter pressing process is achieved, the configuration mode of double material distributors and single press double stations is adopted, double-station movable filter pressing is conducted through mutual cooperation of a first station and a second station, the continuous material distributing and discharging process is achieved, and the production efficiency is improved.

The invention discloses a full-automatic ultrahigh-pressure sludge treatment filter press which comprises a main beam, a plurality of groups of filter plates are slidably mounted in the main beam, a thrust plate and a mounting plate are fixedly mounted at two ends of the main beam respectively, a hydraulic rod is fixedly mounted at one end of the mounting plate, a piston rod of the hydraulic rod penetrates through the mounting plate, and a pressing plate is fixedly mounted at the end of the piston rod. Guide grooves are formed in the upper surfaces of the filter plates, the mounting plates and the thrust plates, synchronizing mechanisms are slidably mounted in the guide grooves, purging mechanisms are slidably mounted in the synchronizing mechanisms, V-shaped cylinders are fixedly mounted on the lower surface of the main beam, and sludge shaping mechanisms are rotatably mounted in the V-shaped cylinders. Through the design of the synchronizing mechanism, the sludge shaping mechanism and the purging mechanism, the function of automatically cleaning the filter plate is achieved through purging of high-pressure gas, and then the continuous operation capacity and the cleaning efficiency of the equipment are improved.

The invention relates to the technical field of oil filters, in particular to a digital control oil filter. The filter press comprises a filter barrel and a filter pressing assembly. According to the device, in the process that the stirring barrel rotates in the first filtering cavity to drive the stirring rod to stir oil plants to accelerate exhaust of the oil plants, the stirring barrel drives the filter pressing plate to do up-down reciprocating motion in the second filtering cavity through the inner thread sleeve at the same time, when the filter pressing plate moves downwards, the oil channel is blocked and closed, and the filter pressing plate can compress the oil plants in the second filtering cavity; the piston shaft moves downwards in the suction pipe, so that the inner volume of the suction pipe is increased to form negative pressure, the oil in the negative pressure cavity is adsorbed, passes through the one-way valve and then enters the suction pipe to be temporarily stored, when the filter pressing plate moves upwards, the oil channel is smooth, and the oil temporarily stored in the suction pipe falls into the second filter cavity through the oil channel; therefore, the oil in the negative pressure cavity is introduced into the second filtering cavity, the oil in the second filtering cavity is compressed, and the oil filtering effect can be improved.

The invention provides a treatment method of a nickel sulfate solution, and relates to the technical field of non-ferrous metal smelting. The treatment method of the nickel sulfate solution comprises a neutralization procedure, an extraction and oil removal procedure, an electrodeposition procedure and a nickel deposition procedure, in the neutralization procedure, a nickel deposition material generated by anolyte deposition in the nickel deposition procedure serves as a neutralizer to adjust the pH value back, and the solution obtained after neutralization and impurity removal is subjected to extraction, oil removal and electrodeposition to obtain anolyte. And continuously precipitating the anolyte to obtain a nickel precipitation material. The first solid produced by the treatment method of the nickel sulfate solution can be used for pyrogenic production of high matte nickel and electrodeposition procedures, part of impurities in raw materials can be discharged out of a system through the first solid, no dangerous waste residue is produced, and therefore the number of needed filter presses, the number of solid residue filter pressing times and the residue discharging workload are reduced. As calcium powder is not used for neutralization in the neutralization process, the problem of pipeline blockage caused by precipitation of saturated calcium is reduced.

The utility model discloses a ceramic raw material filter press which comprises a rack, sliding rails, a fixing plate, a filter plate, a pressing plate and a separating device, the two parallel sliding rails are arranged on the rack, sliding blocks are arranged on the two sides of the filter plate, the filter plate is installed on the two sliding rails through the two sliding blocks, and the pressing plate is arranged on the rack. The filter plates are arranged on the two sliding rails, the filter plates can move along the sliding rails, the fixing plates and the pressing plates are arranged at the two ends of the sliding rails, the pressing plates are driven by pressing air cylinders, the filter plates can be pushed to the fixing plates, and finally all the filter plates are pressed; the separation device comprises a separation air bag, a mounting plate and an air pump, the mounting plate is arranged above the sliding block, the separation air bag is mounted on one side of the mounting plate, and the thickness of the separation air bag in a full state is larger than the distance between the mounting plates of the two adjacent filter plates. The ceramic raw material filter press disclosed by the utility model can improve the separation efficiency of the filter plates.

The invention provides three-stage extrusion type coal slime filter pressing equipment and a working method. The filter pressing equipment structurally comprises a thrust plate, a filter plate, filter cloth, a cross beam, a pressing plate, a pressing hydraulic system, a sealing unit, a feeding unit, a control unit and the like; columnar protruding structures arranged in an array mode are arranged on the outer surface of the filter plate, and each columnar protruding structure is in the structural form that a cone and a semicircle are combined. According to the requirements of the size and the dehydration rate of the filter plate, the columnar bulge structures are arranged on the surface of the filter plate by adopting a topological optimization method, so that the dehydration rate of the coal slime is improved, and the separation of a filter cake is facilitated; the pressing plate is of a sectional structure and is divided into three sections from left to right, and each section is connected with piston rods of the corresponding three hydraulic cylinders and corresponds to a three-stage extrusion working mode. And when the previous-stage extrusion pressure reaches 40% of the threshold pressure, the next-stage extrusion procedure is started. 40% of the extrusion threshold pressure can be set to ensure that the first two-stage extrusion is not finished when the third-stage extrusion process is started, so that the optimal extrusion mode of three-stage simultaneous extrusion is formed, the coal slime dehydration rate is increased to the greatest extent, and the filter pressing effect is improved. By adopting the three-stage extrusion mode, the dehydration process of each sub-area can be freely, flexibly and independently controlled, the toothpaste extrusion type collaborative filter pressing effect is achieved, the coal slime dehydration rate is higher, and the filter pressing effect is better.

The invention relates to the technical field of filter press cleaning and discloses a plate-and-frame filter press cleaning system.The plate-and-frame filter press cleaning system comprises a spraying device, a sensor assembly, a control system and a sewage collecting tank, dirt and filtering resistance on the surface of filter cloth are detected through the sensor assembly, and the control system adjusts the working state of the spraying device according to sensor signals; according to the plate-and-frame filter press, the filter cloth of the plate-and-frame filter press is washed by the spraying device, and sewage generated by washing enters the sewage collecting tank for treatment, so that the working efficiency of the plate-and-frame filter press is improved, the efficiency reduction and manual cleaning requirements caused by blockage of the filter cloth are reduced, and the labor cost is reduced; the invention further provides a plate-and-frame filter press cleaning method, infrared thickness detection and pressure change rate two parameters are fused, the defect of a single sensor is avoided, the anti-interference capacity of the system is remarkably improved, cleaning is triggered based on the dirt index threshold value, cleaning is more timely and effective, and the service life of filter cloth and the service life of whole equipment are prolonged.

The invention discloses a self-cleaning plate-type filter press for mother liquor purification in the field of filtering equipment, the self-cleaning plate-type filter press comprises a frame body and an extrusion assembly, the frame body comprises two guide rails arranged in parallel, the extrusion assembly comprises a plurality of filter pressing plates located between the two guide rails, and the filter press further comprises a shaking mechanism and a flushing mechanism; the two shaking mechanisms are arranged on the two guide rails respectively, each shaking mechanism comprises a sliding block and a driving assembly for driving the sliding block to slide on the guide rails, and the sliding block is provided with a lifting assembly for lifting the filter pressing plate after the filter pressing plate is jacked up; the flushing mechanism comprises a door-shaped support and a telescopic assembly arranged on the guide rail in a sliding mode, the lower portion of the top of the support is provided with a telescopic assembly, and the telescopic end of the telescopic assembly faces downwards and is connected with a spraying assembly. According to the scheme, two processes of shaking off a large filter cake by shaking and flushing residual impurities in filter holes by spraying pressurized water are combined, so that the filter pressing plate is quickly and easily cleaned, and the effect of high cleanliness is achieved.

The invention discloses a high-pressure belt conveyor low-cost sludge dewatering technology, and relates to the technical field of sludge dewatering, the technology comprises the following steps: S1, in a pretreatment stage, adding a ferric chloride agent and destroying a sludge colloid structure; s2, in the conditioning stage, lime powder is added to adjust the pH value, and a porous skeleton structure is constructed; s3, adding a polyacrylamide medicament in a flocculation stage to form a compact floc; s4, a high-pressure belt filter press is used for mechanical dehydration in the dehydration stage; s5, recovering the filtrate for redissolving the medicament; s6, performing dynamic linkage optimization of chemical dosing and filter pressing parameters through a dynamic chemical dosing algorithm of the control system; the dosage of chemicals is effectively reduced, the sludge dewatering effect is improved, the sludge dewatering treatment cost is reduced, and the cyclic utilization of resources is realized; the technical problems that an existing sludge dewatering technology is too high in agent cost, low in agent matching and combination reliability and insufficient in technology adaptability are solved.

The invention relates to the technical field of wastewater treatment, and discloses a papermaking sludge dewatering and cake forming device which comprises a plate-and-frame filter press main body and a sludge storage assembly arranged above the plate-and-frame filter press main body, the sludge storage assembly comprises a first plate frame, a sliding plate, a rotating shaft and an electric heating copper rod, the first plate frame is slidably connected to the interior of the plate-and-frame filter press main body, and the sliding plate is arranged in the plate-and-frame filter press main body; the sliding plate is slidably connected into the first plate frame, the rotating shaft is rotatably connected into the sliding plate, and supporting frames are symmetrically and fixedly connected to the two sides of the top of the first plate frame; when a second plate frame is separated from a first plate frame, a pressing plate does not extrude a sliding plate any more, the sliding plate can move upwards after being separated, an electric heating copper rod rotates through meshing of a toothed plate and a gear, and therefore it is guaranteed that the outer wall of the electric heating copper rod is separated from the bonding state with a mud cake in the first plate frame due to autorotation, and the situation that the mud cake is stuck to the mud cake is reduced when the mud cake is separated from the interior of the first plate frame. And the first plate frame is adhered to the inner cavity of the first plate frame so as not to be separated cleanly.

The invention discloses a textile printing and dyeing sewage treatment recycling device, which comprises a box body, the interior of the box body is divided into three treatment areas through vertically fixed partition plates, the top of the box body is provided with a support, the support is fixedly provided with a plate filter press, and the outer side of the box body is provided with a dosing mechanism; the medicine feeding device further comprises an outer medicine feeding cylinder, the outer medicine feeding cylinder is transversely fixed to the tops of the three areas in the box body, an inner medicine feeding cylinder is rotationally arranged in the outer medicine feeding cylinder, medicine feeding holes are formed in the bottom of the inner medicine feeding cylinder and the bottom of the outer medicine feeding cylinder, a driving base is fixed to the bottom of the outer medicine feeding cylinder, and the driving base is connected with a mounting shaft through a built-in motor. A mounting sleeve is fixed to the bottom of the outer side of the mounting shaft, and a floating plate is vertically arranged in the middle of the mounting shaft in a limited and sliding mode. The sewage treatment and recycling device for textile printing and dyeing can be used for treating for multiple times, and adjusting the dosage and stably stirring according to the water quantity.

The invention discloses a filter plate cleaning device for a plate-and-frame filter press, and relates to the technical field of plate-and-frame filter presses, the filter plate cleaning device comprises a filter press body, a nozzle dismounting mechanism is arranged on the left side of the filter press body, a blade dismounting mechanism is arranged above the filter press body, the nozzle dismounting mechanism comprises a dismounting unit, and the dismounting unit is arranged on the left side of the filter press body. The nozzle dismounting mechanism further comprises an automatic discharging unit, the automatic discharging unit is arranged on the left side of the filter press body, the automatic discharging unit is matched with the dismounting unit, the dismounting unit ejects the used nozzle to the ground, and the blade dismounting mechanism is matched with the nozzle dismounting mechanism. According to the filter plate cleaning device for the plate-and-frame filter press, by arranging the dismounting unit, the automatic discharging unit and the blade dismounting mechanism, the problem that a high-pressure spray head and a blade need to be manually replaced regularly when equipment is used can be effectively avoided.

The utility model discloses a filter pressing device for inorganic waterproof coating production, which relates to the technical field of inorganic waterproof coating production and comprises a driving mechanism, the top of the driving mechanism is in transmission connection with a transmission mechanism, a filter pressing mechanism is fixedly mounted on one side of the transmission mechanism, and a filtering mechanism is arranged at the bottom of the filter pressing mechanism. When the motor is started, the turntable is driven to rotate, the turntable is not completely symmetrical, so that the rotation of the turntable can cause the connecting rod to shake up and down, the connecting rod is connected to one end of the connecting shaft of the sliding block, the sliding rail is a track, the sliding block is an assembly capable of sliding along the sliding rail, and the filter pressing mechanism is fixedly arranged on the sliding block. When the sliding block moves up and down due to the power of the motor, the filter pressing mechanism also moves up and down in the filtering mechanism to carry out filter pressing, and the filter pressing device for producing the inorganic waterproof coating can effectively remove solid particles and impurities in the coating and improve the purity and the quality of the coating.

A self-adaptive multi-layer filter pressing system comprises filter pressing equipment and folding equipment, the filter pressing equipment comprises an upper crawler belt mechanism, a lower crawler belt mechanism and a pressure execution element, a filter pressing area is formed between the upper crawler belt mechanism and the lower crawler belt mechanism, and the thickness of the filter pressing area is reduced in the advancing direction of materials; the upper track mechanism comprises an upper pressing plate used for pressing a filter pressing area, the lower track mechanism comprises a lower pressing plate used for supporting the filter pressing area, the output end of the pressure execution element is connected with the upper pressing plate and applies pressure to the upper pressing plate, and the upper pressing plate can move up and down along with the output end of the pressure execution element; the folding device is used for folding the filter belt wrapping the materials into multiple layers of materials. According to the utility model, sludge is folded into multiple layers of materials and then enters the filter pressing area to be subjected to filter pressing, and the pressure executing element is matched with the upper pressing plate, so that the problem of machine blocking can be avoided, the multiple layers of materials can smoothly pass through the filter pressing area to be dehydrated, and thin-layer, efficient and continuous deep dehydration is realized.

The utility model belongs to the technical field of filter presses, and particularly discloses a plate-and-frame filter press which comprises a rack, a thrust plate, a pressing plate and a mud cake collecting assembly, the rack comprises symmetrically arranged supporting legs, an upper cross beam and a lower cross beam are fixedly installed on the supporting legs, universal wheels are arranged at the bottom ends of the supporting legs at the four end corners, and the bottom ends of the supporting legs at the four end corners are connected with the thrust plate. A thrust plate is fixedly installed at one end of the upper cross beam, a feeding pipe is arranged on the outward side of the thrust plate, a pressing plate is movably installed at the other end of the upper cross beam, a telescopic rod is connected to the center of the outward end of the pressing plate, and one end of the telescopic rod is connected with an air cylinder. A plurality of filter frames and filter cloth are alternately mounted between the pressing plate and the thrust plate; circular slotted holes are formed in four end corners of the filter frame; the mud cake collecting assembly is arranged below the lower cross beam, the mud cake collecting assembly comprises two rectangular collecting frames, handles are fixedly installed on the outer side walls of the collecting frames, and pulleys are fixedly arranged at the end corners of the periphery of the bottom of each collecting frame.

The embodiment of the utility model provides a filter plate of a plate-and-frame filter press and the plate-and-frame filter press, and relates to the technical field of filter presses. The filter plate of the plate-and-frame filter press comprises a filter plate main body, a plate frame body and a filter disc plate, and connecting grooves are formed in the front side and the rear side of the tops of the two sides of the filter plate main body. A pressing plate is pressed to drive a pull rod to move downwards, a second clamping plate is driven to move when the pull rod moves, the second clamping plate extrudes and retracts a spring set, at the moment, the second clamping plate is separated from the surface of a first clamping plate, and then a plate frame body and a filter disc plate can be detached for maintenance or replacement; meanwhile, when filtering work is completed and a hydraulic cylinder drives a movable end to be separated from a filter plate main body, a second spring is reset to drive a sliding ring to move on the surface of a positioning rod, so that a supporting plate drives a propping plate to move, and the propping plate drives a guide wheel and the spaced filter plate main body to assist in bouncing off, so that filtered materials are conveniently discharged, the pressure of a shifting device is reduced, and the filtering efficiency is improved. And the discharging efficiency is improved.

The invention discloses a filter cloth on-line automatic cleaning control method and system for a filter cloth walking type filter press, and relates to the technical field of solid-liquid separation equipment automation control, and the method comprises the following steps: S100, constructing a cleaning control topological structure, grouping filter cloth according to the number of the filter cloth, configuring a corresponding cleaning solenoid valve and a cleaning nozzle for each group, the valve opening sequence table is connected to a cleaning pump through a cleaning pipeline, and meanwhile, a set of valve opening sequence table for all groups is generated. The filter cloth is grouped, the cleaning valves and the nozzles are independently controlled, and real-time parameter calculation and alternate valve opening logic are combined, so that accurate scheduling and balanced distribution of the cleaning area and frequency are realized. Through a walking counting and condition judgment mechanism, cleaning is started according to needs, efficiency is improved, and energy consumption is reduced. A closed-loop control process of setting, judging, executing, alternating and recording is constructed, and the comprehensive technical effects of filter press cleaning rhythm stability, resource optimization, efficiency improvement, equipment service life prolonging and the like are achieved.

The utility model relates to a spatial multilayer ultrahigh pressure belt type dehydration system which comprises a main rack, a material distributing and feeding device, a material distributing device, a filter belt, a filter belt traction machine, a filter pressing hydraulic machine, a hydraulic station and a controller, the material distributing and feeding device, the material distributing device, the filter belt traction machine and the filter pressing hydraulic machine are connected and mounted on the main rack; and the output end of the material distributing and feeding device is connected and mounted above the material distributing device. The dehydration method comprises the steps of equipment starting, material distribution, filter pressing dehydration and unloading. The organic waste dehydration device is higher in dehydration efficiency and lower in cost, and can be used as an organic waste dehydration device capable of reducing pollution and carbon.

The present invention belongs to the technical field of material dehydration, and particularly relates to a dehydration device for an urban waste biomass-based composite phase change material, which comprises a bracket. A roll press filter is installed on the bracket. The roll press filter includes two side plates, two pairs of driving rollers, two guide rollers, two filter belts with mesh holes, and a connecting frame. Two hollow brush barrels driven by a gear set are rotatably connected between the two side plates. The hollow brush barrels have bristles that contact the filter belts. A drying box is installed on the bracket, and a rotating spiral frame is arranged in the drying box. The material after being filter-pressed by the roll press filter enters the drying box for drying. The rotating spiral frame and the stirring rods make the material turn over. Under the action of the gear set, the rotating hollow brush barrels brush off the material on the filter belts through the bristles, reducing the adhesion of the material and ensuring the effect of subsequent filter-pressing of the filter belts on the material. The moving inclined plate reciprocates through a moving mechanism to break the material, reducing the stacking of the material and improving the drying effect.