25 results about "COPPER SULFATE CRYSTALS" patented technology

The invention discloses a clean production process for contaminated acid treatment, which comprises the following steps: (1) after contaminated acid is subjected to heavy metal removal pretreatment, adding iron oxide / iron and copper oxide / copper into the contaminated acid to carry out neutralization reaction, and carrying out solid-liquid separation to obtain a ferric sulfate / ferrous sulfate solution and a copper sulfate solution; (2) concentrating and crystallizing the ferric sulfate / ferrous sulfate solution and the copper sulfate solution which are generated by neutralizing the waste acid; (3) roasting the ferric sulfate / ferrous sulfate and copper sulfate crystals step by step to remove crystal water; (4) carrying out high-temperature roasting on the ferric sulfate / ferrous sulfate or copper sulfate after the crystal water is removed, and decomposing into ferric oxide, copper sulfate, sulfur dioxide or sulfur trioxide; the obtained ferric oxide and copper oxide are recycled for neutralization treatment of waste acid after being recycled, and the obtained sulfur dioxide and sulfur trioxide can be recycled for sulfuric acid production. The waste acid is subjected to circulating neutralization treatment, so that the generation of traditional waste acid neutralization slag is avoided, and the resource utilization of sulfur is also realized.

The invention relates to the technical field of copper sulfate cooling crystallization, and discloses a cooling crystallizer for copper sulfate processing, which comprises a crystallizer main body, a tank body top cover is mounted at the top of the crystallizer main body, a liquid inlet pipe is fixedly communicated with the tank body top cover, and a liquid outlet pipe is fixedly communicated with the bottom of the crystallizer main body. A scraping assembly used for cleaning the inner wall of the crystallizer body is arranged on the tank body top cover and comprises a threaded rod. Copper sulfate crystals attached to the inner wall of the crystallizer body can be scraped through rotation and downward movement of the stirring shell plate, so that the crystals attached to the inner wall of the crystallizer body can be prevented from hindering contact between a copper sulfate solution and a cooling device, uniform cooling of the interior of the solution is promoted, sufficient crystallization of the copper sulfate solution is guaranteed, and the production efficiency is improved. And meanwhile, excessive accumulation of the crystals can be avoided by scraping the attached crystals, so that the subsequent cleaning work of workers is simpler.

The application provides a method for preparing copper sulfate by using a nickel sulfate production device, and comprises the following steps: S1, raw material pretreatment; S2, leaching reaction; S3, solution purification; S4, evaporation and concentration; S5, crystallization; S6, filtration separation; and S7, drying. The application relies on the existing evaporation, precooling, filter pressing and crystallization equipment of the nickel sulfate, realizes the production of qualified copper sulfate without adding new core equipment through raw material adaptive treatment and process parameter adjustment, has the advantages of low cost, high adaptability, environmental protection and high efficiency, the purity of the product is greater than or equal to 20%, the equipment utilization rate is increased by more than 60%, and the method is suitable for joint production operation of non-ferrous metal smelting enterprises. In the crystallization step, the crystallizer is provided with a crystallization degree monitoring device, the cooling rate and the constant-temperature crystallization time can be adjusted in real time according to the supersaturation degree and other parameters of the solution, good conditions are provided for the growth of the copper sulfate crystals, the crystal particle size is uniform, the purity and quality of the product are improved, and the quality requirements of different customers for the copper sulfate product are met.

The application provides a process for recycling electrolytic copper to efficiently smelt and form copper balls, which comprises an electrolyte purification and arsenic removal process and an electrolytic copper smelting and forming copper ball process; the electrolyte purification and arsenic removal process comprises: evaporating and concentrating and cooling and crystallizing the arsenic-containing electrolyte to separate copper sulfate crystals and a crystallization mother liquor; introducing an oxidizing agent into the crystallization mother liquor to oxidize trivalent arsenic into pentavalent arsenic; adding an iron salt and a pH regulator into the oxidized solution to control the pH value to be 3.5-4.5, so that arsenic is precipitated in the form of ferric arsenate; solid-liquid separation is performed to obtain ferric arsenate slag and a post-arsenic-removal solution, and the ferric arsenate slag is discharged for disposal; the electrolytic copper smelting and forming copper ball process comprises: performing pickling, water washing and drying on cathode electrolytic copper obtained through electrolytic refining, and then pressing the cathode electrolytic copper into dense copper blocks; smelting the dense copper blocks under the protection of inert gas, performing degassing and deoxidizing refining after melting, pouring and forming the refined copper liquid, and sequentially performing air natural cooling and water mist cooling to room temperature after demolding.

The invention belongs to the field of circuit board copper reduction etching machine processing, and discloses a copper sulfate recovery device and method for a circuit board copper reduction etching machine, the recovery device comprises a precipitation tank, a cooling assembly, a liquid supply assembly and a scraping assembly, the precipitation tank is used for injecting micro-etching waste liquid; the cooling assembly comprises cooling plates and a refrigerator, and the cooling plates are arranged on the two opposite sides of the precipitation tank; the scraping assembly comprises a plurality of scraping plates, a transmission chain and a driver, and the transmission chain drives the scraping plates to move along the precipitation tank, so that the scraping plates scrape out the copper sulfate crystals from the discharge port; the detection assembly comprises a volumetric flowmeter and a temperature sensor, the volumetric flowmeter is arranged on the infusion tube, and the temperature sensor is arranged in the precipitation tank; the water pump is provided with a first controller; the first controller is in communication connection with the volume flow meter; the refrigerator is provided with a second controller, and the second controller is in communication connection with the temperature sensor and the first controller. According to the invention, the crystallization time can be shortened, the refrigeration energy consumption is reduced, and the maintenance cost is obviously reduced.

The utility model discloses a copper sulfate crystal recovery device. Belongs to the technical field of copper sulfate recovery. According to the technical key points, the device comprises a box body, a box cover is arranged on the box body, and a material conveying pipe which is connected with external crystallization equipment and is communicated with the box cover is arranged above the box body; two filter screens used for draining water are symmetrically and obliquely arranged in the middle of the interior of the box body, and a spiral discharging assembly is arranged between the oblique lower ends of the two filter screens; an umbrella-shaped material guide plate matched with the two filter screens is arranged at the near end part of the opening end of the box body below the material conveying pipe; a liquid pumping pipe for recycling liquid is arranged at the bottom of the box body; the utility model aims to provide a copper sulfate crystal recovery device which is simple in structure and capable of automatically discharging. The method is used for copper sulfate crystal recovery.

The invention relates to a method for preparing large-particle copper sulfate from circuit board copper-containing waste liquid through crystallization, which comprises the following steps: S1, adding an oxidizing agent into the waste liquid, adding alkali to adjust the pH value to 2-3.5, filtering, adding sulfuric acid, heating and boiling to obtain a primary purified solution; s2, performing multi-stage counter-current extraction on the solution obtained in the step S1 by using a copper extraction agent, and then performing reverse extraction by using concentrated sulfuric acid to obtain copper sulfate reverse extraction liquid; s3, taking part of the copper sulfate strip liquor obtained in the S2, and carrying out rapid cooling or spray granulation to obtain copper sulfate fine grains; s4, carrying out sectional controllable evaporative crystallization on the copper sulfate strip liquor obtained in S2 to obtain copper sulfate crystals; and S5, washing and drying the copper sulfate crystal to obtain a final product. The copper sulfate crystal obtained by the method for preparing the large-particle copper sulfate from the copper-containing waste liquid of the circuit board through crystallization is large in particle size, the average particle size can reach 0.5-2.0 mm, the particle size distribution is concentrated, the crystal form is complete, and the purity is high.

The present application relates to a method for preparing a graphyne material based on a template method, which belongs to the technical field related to graphyne materials. 8g of anhydrous copper sulfate is completely dissolved in 15ml of pure water at 80°C to prepare a hot saturated solution of copper sulfate; the hot saturated solution of copper sulfate is transferred to a culture dish and allowed to stand and cool until small crystals are generated; the small crystals are transferred to a saturated solution of copper sulfate prepared by dissolving 1g of anhydrous copper sulfate in 5ml of pure water at 20°C to obtain copper sulfate crystals suitable for the growth of graphyne; hexabromobenzene is used as a raw material to synthesize graphite monomers through a series of chemical reactions; in an inert gas atmosphere, a number of copper sulfate crystals of a preset size and 10ml of pyridine are added to a reaction container, and then 40mg of graphite monomer is added, and a polymerization reaction is carried out at 80-110°C to obtain a graphyne material; by using copper sulfate crystals as polymerization templates and catalysts to prepare graphyne, compared with traditional methods, the yield is improved while the cost is reduced.

The present invention discloses an acid etching liquid waste liquid treatment device, which relates to the field of etching technology, and includes a collector and an intermittent rotating component. A powder collecting chamber is opened in the middle of the collector, and a scraper is fixedly installed on the upper end of the inner wall of the powder collecting chamber. During the use of the present invention, the intermittent rotation power of the rotary disk of the present application is derived from the downward pressure of the piston rod during the upper mold closing process. Not only is the waste liquid in the pump cylinder pressurized by the downward pressure of the piston rod, so that the waste liquid is sprayed onto the surface of the rotary disk by the spray pipe connected to the end of the one-way liquid outlet pipe, but also the displacement drive of the crossbeam is realized by a driving pin that moves synchronously with the piston rod, and then the ninety-degree intermittent rotation of the lower rotary disk is driven by the linkage component, leaving enough heating time for the waste liquid sprayed on the rotary disk surface to volatilize its internal moisture and hydrogen chloride gas, and the remaining copper sulfate crystal powder is collected in the powder collection box after being fully dried.

The application discloses a pore-forming agent, which comprises a core material and a skin layer coated on the surface of the core material, wherein the core material is a copper sulfate crystal hydrate, and the skin layer is a non-polar substance with a melting point of less than or equal to 120 DEG C. The application further discloses a preparation method of the pore-forming agent and an application of the pore-forming agent in a breathable film. The application further discloses an antibacterial breathable film, which comprises resin and the pore-forming agent. The application further discloses a preparation method of the antibacterial breathable film, which comprises the following steps: mixing and granulating the resin and the pore-forming agent, casting a film, stretching, and shaping to obtain the antibacterial breathable film, wherein microwave heating is performed simultaneously with the stretching. The pore-forming agent is obtained by selecting the copper sulfate crystal hydrate as the core material and coating the core material with the skin layer, and the pore-forming agent, in combination with the microwave heating, can make the antibacterial breathable film have uniform pores and has a sterilization effect; and the preparation method of the pore-forming agent and the breathable film is simple and suitable for industrial production.

The invention discloses a method for deeply removing arsenic from crude copper sulfate crystals, which realizes deep removal of arsenic from crude copper sulfate for the first time, ensures that As is less than or equal to 3ppm, and lays a foundation for producing high-grade copper sulfate products. Dissolving the copper sulfate coarse crystal, controlling a certain temperature, and adding sodium hydroxide (AR) to adjust the pH value of the solution to obtain a copper hydroxide precipitate; copper hydroxide precipitates are added into the crude copper sulfate solution, the reaction temperature and the reaction time are controlled, most of arsenic in the crude copper sulfate solution enters a slag phase, effective separation of arsenic and the crude copper sulfate solution is achieved, and As in the crude copper sulfate solution is smaller than or equal to 3 ppm. The method is simple to operate and low in cost, can effectively remove the arsenic content in the crude copper sulfate crystal, and provides reference for production of high-grade copper sulfate products.

The present application relates to a kind of copper in waste paint residue resource recovery method, belong to solid waste resource processing technical field.The method is as follows: waste paint residue is broken and ground;In inorganic salt culture medium, biological leaching bacterial strain is obtained by shaking table culture biological leaching liquor;When biological leaching liquor pH drops to 0.6-1.4, according to 2% to 10% solid-liquid ratio, paint residue powder is input, and shaking table culture is carried out until the dissolution concentration of copper ion no longer increases, and biological leaching ends.Biological leaching liquor is extracted in the extractant formed by LIX984 and sulfonated kerosene DT100, and the oil phase and water phase enriched in copper are separated;The oil phase is back-extracted with sulfuric acid solution, and the water phase and oil phase enriched in copper are separated;Water phase is evaporated and cooled to crystallize and obtain copper sulfate crystal.This method recycles copper ions in waste paint residue, with the characteristics of high recovery rate, simple process, energy saving and environmental protection.

The invention relates to the technical field of copper electrolysis production, in particular to a method for crystallizing and separating out copper ions in copper electrolysis waste liquid, and aims to solve the problems that the copper ion crystallization recovery rate is low and the concentration process is time-consuming and labor-consuming in the purification and copper removal process of the copper electrolysis waste liquid at present. The method for removing the copper element comprises the following steps: placing the waste copper electrolyte in an electrolyte head tank, adding the solution and concentrated sulfuric acid into a copper removal tank according to a certain volume ratio, enabling the concentration of the sulfuric acid in the mixed solution to reach 400-700g / L, enabling copper ions to reach supersaturation in the solution, and separating out copper sulfate crystals when the temperature is reduced to 15-30 DEG C, the high-acid solution returns to an electrolysis system to supplement the consumption of sulfuric acid in the electrolyte, meanwhile, valuable metals are recycled to the maximum extent, corollary equipment such as a copper removal tank and a pipeline required by normal production is adopted in the whole process, the operation is simple and convenient, the maintenance is easy, the solution after copper removal can be continuously used, and the production cost is reduced. And the production cost is effectively reduced.

The utility model discloses a copper sulfate stirring dissolving and flue gas absorbing device which comprises a copper sulfate redissolving tank, a top cover is arranged at the top of the copper sulfate redissolving tank, a speed reducer is installed at the center of the top cover, the output end of the speed reducer is connected with a rotating shaft, the bottom of the rotating shaft is connected with a stirring paddle, and a feeding port and an air suction pipeline are installed on the two sides of the top cover respectively. The feeding port and the air suction pipeline are respectively communicated into the copper sulfate redissolving tank, a steam pipeline is laid at the bottom in the copper sulfate redissolving tank, the steam pipeline is communicated with an external steam pipeline, and steam nozzles are uniformly distributed on the steam pipeline. According to the utility model, the original square copper sulfate redissolving tank is improved, and the copper sulfate redissolving tank with stirring and smoke absorption functions is manufactured, so that the acid mist concentration of a working site is reduced, the field working environment is improved, the dissolving speed of copper sulfate crystals is accelerated, steam energy is saved, and the production efficiency is improved.

The utility model provides a ceramic reference electrode which comprises a reference electrode body, the reference electrode body is provided with a tube body and an electrode wire arranged in the tube body, and the tube body is provided with an outer tube body and an inner tube body; the outer pipe body is arranged on the outer side of the inner pipe body in a sleeving mode, and the outer pipe body and the inner pipe body are made of ceramic products with micropores. By adopting the tube body made of the ceramic product with the micropores, when the pore diameters of the micropores of the outer tube body and the inner tube body are 1.25 microns, the sealing performance of the tube body is optimal, filling liquid can be prevented from flowing out through the pore diameters, and enough ions and electrons can pass through, so that the loss of copper sulfate crystals can be effectively prevented, and the accuracy of test data is improved.

The utility model discloses a high-concentration copper bath solution recovery system which comprises a bath solution exchange tank used for pre-cooling bath solution in the bath solution exchange tank; the cooling crystallization tank is connected with the tank liquid exchange tank through a pipeline, and the cooling crystallization tank is used for generating copper sulfate crystals; the separation conveyor is connected with the cooling crystallization tank through a pipeline, and the separation conveyor is used for outwards conveying copper sulfate crystals generated in the cooling crystallization tank; and the collecting barrel is connected with the separation conveyor, and the collecting barrel is used for collecting the copper sulfate crystals. By arranging the tank liquid exchange tank, the cooling crystallization tank, the separation conveyor and the copper sulfate collecting barrel, the recovery efficiency of copper sulfate crystals can be effectively improved, meanwhile, the recovery rate of production feed liquid can be effectively improved, and the device is more energy-saving and environment-friendly.

The utility model relates to the technical field of circuit board processing, in particular to a copper sulfate recovery system which comprises a micro-etching liquid tank, a crystallization tank and a plate heat exchanger, the micro-etching liquid tank and the crystallization tank are connected with the plate heat exchanger through a continuous input type circulation assembly, and a transverse strip block is fixedly installed on the outer wall of the top side of the crystallization tank. A limiting mounting groove is formed in the transverse strip block, a reciprocating type driving assembly is mounted in the limiting mounting groove, a conveying scraper is mounted on the reciprocating type driving assembly, a stirring part is rotatably mounted at the top of the conveying scraper, a driving gear is fixedly mounted at the top of the stirring part, and the driving gear is in meshed connection with a positioning rack fixed at the top of the crystallization tank; while scraping and conveying of copper sulfate crystals are achieved, the stirring part can be made to rotate, a large number of nuclei are promoted to aggregate and grow, crystallization of the copper sulfate crystals is better facilitated, and meanwhile the situation that the solubility of copper sulfate is increased and the recovery effect of the copper sulfate crystals is affected due to the fact that the temperature of micro-etching liquid is too high can be avoided.

A copper-clad iron powder, wherein copper accounts for 10%-40% of the total weight of the copper-clad iron powder, and the rest is iron. A production process for copper-clad iron powder, the steps include: 1. completely dissolving a certain amount of copper sulfate crystals in a liquid, then adjusting the pH value of the copper sulfate solution to 1.0-5.0, and adding a stabilizer to obtain a mixed solution; 2. adding iron powder to a reaction barrel, and continuously stirring using a stirring device until the replacement reaction is fully completed; 3. allowing the mixed solution to stand, filtering the mixed solution after removing the upper clear liquid, and rinsing the obtained filter cake with clean water until the pH is neutral 4. placing the rinsed filter cake in a reduction furnace at 300-800°C, passing a reducing gas, and obtaining a powder after sufficient reduction; 5. crushing and sieving the obtained powder according to the required size specifications, and packaging and storage. A production device for copper-clad iron powder, including: a frame, a reaction barrel, a motor, a stirring shaft, a fan, a pipeline, a middle opening and closing mechanism, and a reduction furnace.

The application is suitable for the technical field of wastewater treatment and resource recovery, and provides a resource treatment method for electroplating waste liquid, which is aimed at the waste liquid containing copper sulfate and sulfuric acid generated in the copper electroplating process, copper sulfate is generated by adding copper oxide, copper hydroxide or copper carbonate and the like into the waste liquid to react with free sulfuric acid in the waste liquid; then, the saturated copper sulfate solution after reaction is controlled in speed and cooled to crystallize, and high-purity copper sulfate crystals are separated; the crystallization mother liquor can be recycled to the reaction step to further improve the recovery rate, and finally, the tail liquid enriched with impurities is subjected to pH adjustment and ion exchange resin adsorption treatment to realize standard discharge. The application can efficiently convert sulfuric acid and copper ions in the waste liquid into electronic-grade copper sulfate products which can be directly reused in the electroplating process, realizes high-value recovery of resources, and reduces disposal cost and environmental pressure.

The invention relates to a copper sulfate wastewater treatment method and system.The method comprises the steps that copper sulfate wastewater is pretreated, and a target treatment object with the molecular weight within a preset range is obtained; a catalyst is added into the target treatment object for a reaction, and the molar ratio of the target treatment object to the catalyst is 100: (0.5-1); carrying out reduced pressure distillation on a reactant of the catalytic reaction to obtain a distillate; checking the content of copper sulfate water and the content of hydrochloric acid in the distillate, and performing centrifugal separation when the content of the hydrochloric acid in the distillate is smaller than a first preset content and the content of the copper sulfate water is smaller than a second preset content to obtain copper sulfate crystals; wherein the catalyst is prepared from the following components in parts by mass: 0.05 to 0.1 part of N, N-dimethylformamide, 0.15 to 0.2 part of cationic polyacrylamide and 0.15 to 0.2 part of Al2 (OH) m (SO4) 3] n.

The utility model discloses spraying equipment for copper sulfate crystals near a cathode roller, which comprises a mounting seat, a connector externally connected with a water supply pipe is arranged on the mounting seat, a flow guide channel is arranged in the mounting seat, and one end of the flow guide channel extends to the connector; the water-saving valve is mounted on the water supply pipe; the switching valve is rotationally mounted on the mounting seat through a universal joint, is used for adjusting the water flow at the output end of the flow guide channel, and at least comprises a spraying gear; the spraying head is mounted on one side of the switching valve; the spraying mode, the spraying direction and the spraying flow of the spraying equipment are controlled through the digital automatic control system, copper sulfate crystals formed at different positions of the cathode roller and accessories nearby the cathode roller can be quickly cleaned in a timed mode, the risk of manual injury can be reduced, the working efficiency is high, the cost is low, and the device is suitable for popularization and application. And sulfuric acid contained in the electrolyte can be effectively prevented from directly corroding the cathode roller and other accessories, the service life of the cathode roller cannot be influenced, and the practicability is high.

The utility model relates to the technical field of chemical production equipment, and particularly discloses copper sulfate crystallization equipment which comprises a shell, a stirring rod fixedly penetrates through the center of the bottom in the shell, a crystallization scraper is sleeved outside the stirring rod, a heat insulation layer is embedded in the side wall of the shell, and a condensation pipe is embedded in one side, close to an inner cylinder, in the heat insulation layer. The condensation pipe is spiral, a water inlet and a water outlet are formed in the two ends of the condensation pipe respectively, the water inlet is formed in the upper end of the side wall of the shell in a penetrating mode, the water outlet is formed in the lower end of the side wall of the shell in a penetrating mode, an inclined face is fixedly arranged below the crystallization scraping plate, a crystal collecting opening is formed in the inclined face, and a crystal collecting groove is formed below the crystal collecting opening. The device can collect copper sulfate crystals while condensing copper sulfate micro-etching liquid, prevents the copper sulfate crystals from being adsorbed on the condensing pipe, facilitates collection of the copper sulfate crystals, prevents the copper sulfate crystals from being accumulated on the inner side wall and corners of the recycling barrel, saves time and labor, and is convenient to maintain.

The invention provides a long-life polarization probe which comprises a shell, the interior of the shell is divided into an inner cabin and a liquid supplementing cabin, a copper rod is arranged in the inner cabin, the inner cabin is filled with a mixture of copper sulfate crystals and a water retention material and a copper sulfate saturated solution, a liquid leakage hole is formed in the bottom of the inner cabin, and the liquid supplementing cabin is filled with the copper sulfate saturated solution. A natural test piece and a polarization test piece are arranged at the bottom of the liquid supplementing cabin, the natural test piece, the polarization test piece and the copper bar are connected with wires, a liquid supplementing pipe is arranged between the inner cabin and the liquid supplementing cabin and can guide liquid in the liquid supplementing cabin to the inner cabin, a plurality of through holes are formed in the outer side wall of the liquid supplementing cabin, and one-way water seepage films are arranged in the through holes. Water can seep into the liquid supplementing cabin through the one-way water seepage film. Water in the soil can enter the liquid supplementing cabin of the polarization probe through the one-way water seepage film for water supplementing. Water in the liquid supplementing cabin is supplemented to the inner cabin through the liquid supplementing pipe, and copper sulfate crystals in the inner cabin are dissolved in the water to form a copper sulfate saturated solution, so that the service life of the polarization probe is prolonged.

The utility model discloses a tank surface flushing system of a copper electrolysis clean liquid copper and impurity removal tank, which comprises a rotary spray head, a plurality of rows of water pipes, a water inlet pipeline, a glass fiber reinforced plastic cover, a three-way ball valve and a quick-connection type connector, the glass fiber reinforced plastic cover covers the copper and impurity removal tank, and a plurality of rows of water pipes are uniformly and parallelly arranged in the glass fiber reinforced plastic cover along a straight line; a plurality of L-shaped pipelines perpendicular to the water conveying pipes are evenly arranged on the water conveying pipes along a straight line, output ports of the L-shaped pipelines are connected with rotating nozzles respectively, one side of the outer wall of the glass fiber reinforced plastic cover is connected with a water inlet pipeline, and the water inlet pipeline is communicated with the water conveying pipes. According to the utility model, copper sulfate crystal contact points between each cathode and anode plate and the conductive copper bar can be accurately flushed, and the problem of short-circuit fire outbreak of the polar plates of the copper electrolysis clean liquid copper and impurity removal tank is effectively prevented, so that the safety risk is reduced, and fire disasters are prevented. The rotary spray head is used for driving the spray head to rotate automatically through water outlet pressure and impulsive force, energy consumption in the production process is reduced, and production efficiency is improved.

The utility model discloses a copper sulfate treatment centrifugal device with a flushing mechanism. The copper sulfate treatment centrifugal device comprises a centrifugal device and a centrifugal cylinder, a supporting frame is arranged at the bottom end of the centrifugal device, a centrifugal barrel is arranged in the centrifugal device, an auxiliary structure is arranged in the centrifugal barrel, and a motor is arranged at the bottom end of the centrifugal device; a mounting plate is arranged on one side of the centrifugal device, and a flushing structure is arranged at the top end of the mounting plate. Through the use of the filter screen frame, crystals generated by copper sulfate can be left in the filter screen frame during centrifugation, when the copper sulfate crystals are taken out, all the copper sulfate crystals can be directly taken out, the copper sulfate crystals are more convenient to take out, and through the matched use of the fixing columns and the pressing plate, the copper sulfate crystals can be conveniently taken out. When the filter screen frame is taken out, the connecting plate can be jacked up through the inserting rod, so that a gap is formed between the connecting plate and the top end of the centrifugal cylinder, a worker can put the hand at the bottom end of the connecting plate, and the worker can take out the filter screen frame more conveniently.