CN215799106U - Automatic circulation system for pickling and filter pressing of electroplating sludge - Google Patents
Automatic circulation system for pickling and filter pressing of electroplating sludge Download PDFInfo
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- CN215799106U CN215799106U CN202023170481.0U CN202023170481U CN215799106U CN 215799106 U CN215799106 U CN 215799106U CN 202023170481 U CN202023170481 U CN 202023170481U CN 215799106 U CN215799106 U CN 215799106U
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Abstract
The utility model provides an automatic circulation system for pickling and filter pressing of electroplating sludge, which comprises a reaction tank, a filter press, a centrifugal pump and a conveyor. The reaction tank is of a hollow container structure placed on the ground or a platform, the filter press is arranged on one side of the reaction tank, and the centrifugal pump is arranged between the reaction tank and the filter press and is connected with the reaction tank and the filter press through pipelines; the horizontal section body of the conveyer is arranged under a plate type filter pressing mechanism of the filter press, and the terminal end of the conveyer is arranged above the charging hole of the reaction tank. The utility model utilizes the centrifugal pump, the conveyer and the related mechanisms to connect the reaction tank and the filter press into a closed loop whole, so that the multiple acid leaching and filter pressing actions of the electroplating sludge are automatically operated in the circulating system, the complicated operation steps of the electroplating sludge recovery process are greatly saved, the production efficiency is greatly improved, the labor load of workers can be effectively relieved, and the utility model has better economic and practical values.
Description
Technical Field
The utility model belongs to the electroplating sludge treatment technology, and particularly relates to an electroplating sludge pickling and filter pressing automatic circulating system.
Background
With the development of industrial technology in China, the application of the electroplating process is more and more extensive, electroplating sludge containing various heavy metals and pollutants can be contained in electroplating operation, and once the dangerous waste enters a water body, serious environmental pollution can be caused, and meanwhile, the human health is threatened, so that the recycling treatment is required. The existing electroplating sludge treatment process usually adopts a wet recovery technology, comprises the steps of washing, acid leaching, solid-liquid separation, extraction, crystallization and the like to obtain various separated metals and metal compound products, and adopts the repeated implementation of two procedures of acid leaching and solid-liquid separation to ensure the sufficient recovery of electroplating sludge slurry, and gradually removes metal components such as calcium, chromium, magnesium and the like in tailings through the cyclic operation of multiple acid leaching and solid-liquid separation. However, in the prior art, when acid leaching and filter pressing operations are performed on electroplating sludge, materials need to be repeatedly transferred between the acid leaching reaction tank and the plate filter press, and each time the materials are transferred, the manual operation is adopted, so that the operation efficiency of recycling the electroplating sludge is greatly limited due to huge operation amount, complicated steps and high labor load.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides an automatic circulation system for acid pickling and filter pressing of electroplating sludge, so that continuous automation of acid pickling and solid-liquid separation of the electroplating sludge is realized, and the production efficiency is improved.
The utility model is implemented by the following technical scheme: an automatic circulation system for pickling and filter pressing of electroplating sludge comprises a reaction tank, a filter press, a centrifugal pump and a conveyor. Wherein, the reaction tank is a hollow container structure which is placed on the ground or on a platform and has the functions of stirring and heating, the upper part of the tank body is provided with a feed inlet, and the lower part of the tank body is provided with a liquid outlet and a circulating outlet; the filter press is arranged on one side of the reaction tank and can implement the filter press function through a plate type filter press mechanism arranged on the frame, and meanwhile, a circulating inlet and a liquid phase outlet are respectively arranged on the end surfaces of two ends of the plate type filter press mechanism; the centrifugal pump has a fluid conveying function, is arranged between the reaction tank and the filter press, and is respectively connected with the circulating outlet of the reaction tank and the circulating inlet of the filter press through pipelines; the conveyer is the multistage structure and has the material and carry the function, and its horizontal segment body sets up under the board-like filter-pressing mechanism of pressure filter, and the terminal end that the conveyer carried the material sets up in the reacting tank with the uniform spacing the top of charge door.
Furthermore, the utility model also comprises two guide pipes, wherein the feeding end of the centrifugal pump is connected with the circulating outlet of the reaction tank through the guide pipes, and the discharging end of the centrifugal pump is connected with the circulating inlet of the filter press through another guide pipe.
Furthermore, the device also comprises a three-way pipe, wherein one end port of the three-way pipe is arranged at the material feeding port of the reaction tank, and the other two end ports of the three-way pipe face upwards and are provided with material bearing hoppers.
Further, the conveyer includes transportation frame, a plurality of rollers, belt, transportation motor, the frame body of transportation frame is successively arranged with level, slope, horizontally, is equipped with a plurality of rollers with shaft hole cooperation mode on it, the belt registrates in the surface of a plurality of rollers, transportation motor connects in one of them roller to drive the belt and arrange the direction operation along the cylinder.
Furthermore, a motor stirring mechanism is arranged on the reaction tank and used for stirring the materials contained in the tank.
Furthermore, a scraper is arranged at the joint gap between the material bearing hopper and the belt.
The utility model has the beneficial effects that: the utility model utilizes the centrifugal pump, the conveyer and the related mechanisms to connect the reaction tank and the filter press into a closed loop whole, so that the intermediate product of the acid leaching operation of the electroplating sludge in the reaction tank is directly conveyed to the filter press through the centrifugal pump, then the solid-liquid separation operation is implemented through the plate-type filter press mechanism, the filter press solid material is conveyed to the reaction tank again through the conveyer randomly, and the circulating operation is continuously implemented, so that the multiple acid leaching and filter press actions of the electroplating sludge are automatically operated in the circulating system, the complicated operation steps of the recovery process of the electroplating sludge are greatly saved, the production efficiency is greatly improved, the labor load of workers can be effectively released, and the utility model has better economic and practical values.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the direction of material transport of the present invention.
In the figure: 1-a reaction tank, 1 a-a feeding port, 1 b-a liquid discharging port, 1 c-a circulating outlet, 1 d-a motor stirring mechanism, 2-a filter press, 2 a-a frame, 2 b-a plate type filter pressing mechanism, 2 c-a circulating inlet, 2 d-a liquid phase outlet, 3-a centrifugal pump, 3 a-a feeding end, 3 b-a discharging end, 4-a conveyer, 2 a-a conveying frame, 2 b-a roller, 2 c-a belt, 2 d-a conveying motor, 5-a guide pipe, 6-a three-way pipe, 6 a-a material bearing hopper and 6 b-a scraper.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples.
As shown in figure 1, the automatic circulation system for pickling and filter pressing of electroplating sludge comprises a reaction tank 1, a filter press 2, a centrifugal pump 3, a conveyor 4, two guide pipes 5 and a three-way pipe 6. The reaction tank 1 is a hollow container structure placed on the ground or on a platform and has the functions of stirring and heating, the upper part of a tank body is provided with a feeding port 1a, the lower part of the tank body is provided with a liquid outlet 1b and a circulating outlet 1c, and the upper end of the reaction tank is also provided with a motor stirring mechanism 1d for stirring the materials in the tank; the filter press 2 is arranged on one side of the reaction tank 1 and can implement the filter press function through a plate type filter press mechanism 2 arranged on the frame 2a, and meanwhile, a circulating inlet 2c and a liquid phase outlet 2d2d are respectively arranged on the end faces of two ends of the plate type filter press mechanism 2 b; the centrifugal pump 3 has a fluid conveying function and is arranged between the reaction tank 1 and the filter press 2, a feeding end 3a of the centrifugal pump 3 is connected to the circulating outlet 1c of the reaction tank 1 through the conduit 5, and a discharging end 3b of the centrifugal pump 3 is connected to the circulating inlet 2c of the filter press 2 through another conduit 5; the conveyer 4 is of a multi-section structure and has a material conveying function and comprises a conveying frame 4a, a plurality of rollers 4b, a belt 4c and a conveying motor 4d, wherein the frame body of the conveying frame 4a is arranged in a horizontal, inclined and horizontal mode, the rollers 4b are arranged on the frame body in a shaft hole matching mode, the belt 4c is sleeved on the outer surfaces of the rollers 4b, the conveying motor 4d is connected to one of the rollers 4b so as to drive the belt 4c to run along the arrangement direction of the rollers, meanwhile, the horizontal section body of the conveying frame 4a is arranged under a plate type filter pressing mechanism 2b of a filter press 2, and the terminal end of the conveying material at the upper right side (the direction is shown in figure 1) of the conveying frame 4a is arranged above the feeding port 1a of the reaction tank 1 at a certain interval; one end port of the three-way pipe 6 is arranged at a feeding port 1a of the reaction tank 1, the other two ports of the three-way pipe 6 face upwards and are provided with a material holding hopper 6a, and a scraper 6b is arranged at a joint gap between the material holding hopper 6a and the belt 4 c.
The steps for implementing the specific functions of the utility model are as follows:
the method comprises the following steps: the foreign matter in the reaction tank 1 is cleaned first, and the cleaning liquid is discharged through the liquid discharge port 1 b. After drying, opening a valve of a feed inlet 1a of the reaction tank 1, adding electroplating sludge materials through a material bearing hopper 6a right above a three-way pipe 6 (the direction is shown in figure 1), starting a motor stirring mechanism 1d to stir the electroplating sludge in the reaction tank 1, adding a certain amount of sulfuric acid solution, closing the feed inlet 1a, controlling the temperature in the tank and keeping a stirring state, and reacting partial metal components in the electroplating sludge with sulfuric acid to implement acid leaching operation.
Step two: stopping the motor stirring mechanism 1d and starting the circulating outlet 1c and the circulating inlet 2c after the acid leaching operation is finished, then the centrifugal pump 3 is started, as shown in figure 2, by utilizing the fluid conveying function of the centrifugal pump 3, the mixed slurry of the electroplating sludge and the acid liquor in the reaction tank 1 is firstly sucked into the pump through the circulating outlet 1c, the conduit 5 and the feeding end 3a, under the action of the centrifugal force, the mixed slurry is conveyed into a plate type filter pressing mechanism 2b of the filter press 2 through a discharge end 3b, a conduit 5 and a circulating inlet 2c, then starting the plate type filter pressing mechanism 2b and applying mechanical pressure to the mixed slurry to primarily separate solid and liquid components by utilizing the filter pressing function of the filter plate array, wherein the liquid components are discharged through a liquid phase outlet 2d and enter the next steps of extraction, crystallization and other processes to obtain separated metal or metal compound products; the solid components in the mixed slurry are reserved in the filter plate array of the plate type filter-pressing mechanism 2b, after the filter-pressing operation is finished, the pressing force of the plate type filter-pressing mechanism 2b is stopped, and the filter plate array is opened to enable the solid components to fall on the belt 4c of the lower conveyer 4.
Step three: and (3) starting the conveying motor 4d to enable the belt 4c to operate, so that solid component materials obtained by filter-pressing separation and collection are conveyed to the upper right (the direction is according to the figure 2), then fall into a material bearing hopper 6a on one side of the three-way pipe 6, wherein the solid components adhered to the belt 4c are scraped by a scraper 6b and are collected into the material bearing hopper 6a again, at the moment, a feeding port 1a of the reaction tank 1 is opened, so that the solid component materials fall into the tank, the operations of stirring, acid adding, temperature control and the like are carried out successively in the same way as the step one, secondary acid leaching operation is carried out on the separated solid components in the electroplating sludge, and other metal components are obtained by separation through the same operation as the step two. The recycling mode is repeatedly implemented for a plurality of times, the continuous automation of a plurality of acid leaching and filter pressing operations is completed, and the production efficiency of the electroplating sludge recycling process is improved.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the claims of the present invention.
Claims (5)
1. The utility model provides an automatic circulation system of electroplating sludge pickling and filter-pressing, includes reaction tank, pressure filter, centrifugal pump, cargo airplane, its characterized in that: the reaction tank is a hollow container structure placed on the ground or on a platform and has the functions of stirring and heating, the upper part of the reaction tank is provided with a feed inlet, the lower part of the reaction tank is provided with a liquid outlet and a circulating outlet, the filter press is arranged at one side of the reaction tank and can implement the filter press function through a plate type filter press mechanism arranged on the frame, and simultaneously, the two end faces of the plate type filter pressing mechanism are respectively provided with a circulating inlet and a liquid phase outlet, the centrifugal pump has a fluid conveying function and is arranged between the reaction tank and the filter press, meanwhile, the circulating outlet of the reaction tank and the circulating inlet of the filter press are respectively connected through pipelines, the conveyer is of a multi-section structure and has a material conveying function, the horizontal section body of the device is arranged under a plate-type filter pressing mechanism of a filter press, and the terminal end of a conveyor for conveying materials is arranged above the charging hole of the reaction tank at a certain interval.
2. The electroplating sludge acid washing and filter pressing automatic circulation system as claimed in claim 1, which is characterized in that: the device also comprises two guide pipes, wherein the feeding end of the centrifugal pump is connected with the circulating outlet of the reaction tank through the guide pipes, and the discharging end of the centrifugal pump is connected with the circulating inlet of the filter press through another guide pipe.
3. The electroplating sludge acid washing and filter pressing automatic circulation system as claimed in claim 1, further comprising a three-way pipe, and characterized in that: the conveyer comprises a conveying frame, a plurality of rollers, a belt and a conveying motor, wherein the conveying frame is arranged in a horizontal, inclined and horizontal mode, the rollers are arranged on the conveying frame in a shaft hole matching mode, the belt is sleeved on the outer surfaces of the rollers, and the conveying motor is connected to one of the rollers so as to drive the belt to run along the arrangement direction of the rollers.
4. The electroplating sludge acid washing and filter pressing automatic circulation system as claimed in claim 1, which is characterized in that: and the reaction tank is provided with a motor stirring mechanism for stirring the materials contained in the tank.
5. The electroplating sludge acid washing and filter pressing automatic circulation system as claimed in claim 3, which is characterized in that: and a scraper is arranged at the joint gap between the material bearing hopper and the belt.
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CN202023170481.0U CN215799106U (en) | 2020-12-25 | 2020-12-25 | Automatic circulation system for pickling and filter pressing of electroplating sludge |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115491498A (en) * | 2022-09-23 | 2022-12-20 | 江西佳纳能源科技有限公司 | Recovery method of electroplating sludge |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115491498A (en) * | 2022-09-23 | 2022-12-20 | 江西佳纳能源科技有限公司 | Recovery method of electroplating sludge |
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