CN214400762U

CN214400762U - Combined treatment system for precipitates in electrolytic cell

Info

Publication number: CN214400762U
Application number: CN202120598135.8U
Authority: CN
Inventors: 李全清; 杨文勇; 李全庆; 何爱庆; 何志军; 雒亮亮
Original assignee: Minshan Huanneng Hi Tech Co ltd
Current assignee: Minshan Huanneng Hi Tech Co ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-10-15
Anticipated expiration: 2031-03-24

Abstract

The utility model belongs to the technical field of hydrometallurgy, concretely relates to combined treatment system of deposit in electrolytic bath. The combined treatment system comprises an electrolytic cell, wherein the electrolytic cell is sequentially connected with a vacuum tank, a pressure filtration pump and a pressure filter, the vacuum tank is further connected with a vacuum pump, and the pressure filtration pump and the pressure filter are further connected with a circulating pool. Use the utility model discloses a combined treatment system of deposit utilizes the filter-pressing pump directly to extract the material in the vacuum chamber, adopts the open flow filtration mode to carry out the filter-pressing to the filter-pressing machine, and the liquid that the filter-pressing was filtered out is retrieved by the circulation pond, reducible material loss. The solid material after filter pressing has low moisture and can be transferred in time, and the pollution to the environment in the transfer process is avoided.

Description

Combined treatment system for precipitates in electrolytic cell

Technical Field

The utility model belongs to the technical field of hydrometallurgy, concretely relates to combined treatment system of deposit in electrolytic bath.

Background

The attached mud and the crystal on the anode plate are precipitated in the electrolytic tank in the zinc electrolysis process and need to be cleaned regularly. In the prior art, a vacuum pump is used for extracting precipitates in an electrolytic cell under negative pressure without stopping production, the precipitates are pumped into a vacuum tank, and then the vacuum tank is placed into an anode mud tank; and pumping the liquid into a waste liquid pool, manually cleaning the anode mud, packaging and returning the anode mud to a liquid preparation workshop.

For example, the utility model with the publication number of CN 211999945U discloses a sludge pumping device for anode sludge of an electrolytic cell. The mud pumping device comprises a negative pressure system and a mud storage system which are connected through a negative pressure pipe, the negative pressure system comprises a jet vacuum pump, the nozzle inlet of the jet vacuum pump is connected with the inlet and the absorption chamber of the water storage tank through an outlet of a circulating water pipe and a diffusion pipe, the negative pressure tank is connected with an anode mud A storage tank of the mud storage system, and the bottom of the anode mud A storage tank is connected to an anode mud B storage tank and the upper part of the anode mud B storage tank through a mud outlet pipe. Although the device is used for pumping mud, the abrasion of lead particles and the like in anode mud to a pump is greatly reduced, the prior art still has the following defects: (1) the waste liquid can not be recovered, the material loss is caused, (2) the anode mud still needs manual cleaning, which is time-consuming and labor-consuming, (3) the anode mud can pollute the surrounding environment during cleaning, and (4) the cleaned anode mud material has large moisture and can not be transported in time.

Disclosure of Invention

The utility model provides a combined treatment system for sediments in an electrolytic cell, aiming at the problems that anode slime cleaned in the electrolytic cell in the prior art still needs to be cleaned again manually, the moisture is large and the waste liquid can not be recovered. The waste liquid that utilizes this system to obtain can be retrieved, has reduced material loss, has reduced the artifical clearance once more of anode mud, and the anode mud material moisture after the filter-pressing is low, can in time transport, and has stopped the environmental pollution among the material transportation.

In order to realize the purpose, the technical scheme of the utility model is that:

the combined treatment system for the sediments in the electrolytic cell comprises the electrolytic cell, wherein the electrolytic cell is sequentially connected with a vacuum tank, a pressure filtration pump and a pressure filter, the vacuum tank is further connected with a vacuum pump, and the pressure filtration pump and the pressure filter are further connected with a circulating pool.

In a further preferable scheme, vacuum pipelines are arranged between the electrolytic bath and the vacuum tank, between the vacuum tank and the filter-pressing pump and between the vacuum tank and the vacuum pump.

In a further preferred scheme, pressure filtration pipelines are arranged between the pressure filtration pump and the pressure filter and between the pressure filtration pump and the circulation tank.

In a further preferred scheme, the filter press is a plate filter press, and the filter press is connected with the circulating pool through a chute.

In a further preferred scheme, a back-flushing pipeline is further connected to a filter-pressing pipeline between the filter-pressing pump and the filter press, and the back-flushing pipeline is connected with the vacuum tank.

In a further preferred scheme, a valve is arranged on the back flushing pipeline.

Through the technical scheme, the beneficial effects of the utility model are that:

1. use the utility model discloses a combined treatment system of deposit utilizes the filter-pressing pump directly to extract the material in the vacuum chamber, adopts the open flow filtration mode to carry out the filter-pressing to the filter-pressing machine, and the liquid that the filter-pressing was filtered out is retrieved by the circulation pond, reducible material loss. The solid material after filter pressing has low water content (less than 40 percent), can be transferred in time, and avoids the pollution to the environment in the transfer.

2. The utility model reduces the labor intensity of the anode mud treatment in the electrolytic bath.

3. After the traditional electrolytic tank anode mud treatment device treats the precipitate, the obtained liquid directly enters a waste liquid pipeline and is treated according to the waste liquid, and zinc and acid in the liquid can be utilized only by being processed once again; after the utility model is used, the zinc and the acid in the liquid can be directly utilized, and the production cost is reduced.

Drawings

FIG. 1 is a schematic structural view of a combined treatment system for precipitates in an electrolytic cell according to the present invention.

In the drawings: the device comprises an electrolytic bath 1, a vacuum tank 2, a vacuum pump 21, a vacuum pipeline 22, a blowback pipeline 23, a filter press pump 3, a filter press pipeline 31, a filter press 4, a chute 41 and a circulating pool 5.

Detailed Description

The invention will be further explained with reference to the drawings and the detailed description below:

as shown in fig. 1, the combined treatment system for sediments in an electrolytic cell of the present embodiment includes an electrolytic cell 1, the electrolytic cell 1 is sequentially connected with a vacuum tank 2, a pressure filtration pump 3 and a pressure filter 4, the vacuum tank 2 is further connected with a vacuum pump 21, and the pressure filtration pump 3 and the pressure filter 4 are further connected with a circulation tank 5. After the filter press 4 filters the anode mud, liquid can directly enter the circulating pool 5, and the filter press pump 3 is also connected with the circulating pool 5, so that the filter press pump 3 can also pump materials in the circulating pool 5 to the filter press 4 for secondary filter pressing.

In addition to receiving the filtrate from the filter press 4, the circulation tank 5 is connected to the electrolytic cell 1 via a chute 41, which serves to replenish the electrolytic cell 1 (the connection of the circulation tank 5 to the electrolytic cell 1 is not shown in fig. 1). Therefore, the filtrate obtained after the anode slime is treated by the combined treatment system can be directly used for replenishing the electrolyte in the electrolytic cell 1, and the waste liquid obtained by the anode slime treatment device in the prior art cannot be utilized.

Specifically, the bottom of the electrolytic tank 1 is connected with the liquid inlet of the vacuum tank 2 through a vacuum pipeline 22, the liquid outlet of the vacuum tank 2 is connected with the filter pressing pump 3 through the vacuum pipeline 22, and the vacuum tank 2 is connected with the vacuum pump 21 through the vacuum pipeline 22. The filter pressing pump 3 and the filter press 4 and the filter pressing pump 3 and the circulating pool 5 are connected through filter pressing pipelines 31. A back flushing pipeline 23 is further connected to the filter pressing pipeline 31 between the filter pressing pump 3 and the filter press 4, the back flushing pipeline 23 is connected with the vacuum tank 2, and a valve is arranged on the back flushing pipeline 23. The blowback line 23 is provided to purge the vacuum tank 2 with the pressure in the filter-press line 31 when the vacuum tank 2 is clogged.

The filter press 4 in this embodiment is a plate filter press, specifically, a program-controlled automatic filter press XMZ100/1000-U is adopted, a chute 41 is arranged below the plate filter press, and the plate filter press is connected with the circulation tank 5 through the chute 41.

The specific operation process is as follows:

step 1: checking the water level of the circulating pool 5, wherein the water level of the circulating pool 5 is preferably more than one half;

step 2: starting the vacuum pump 2, checking the running state and whether the running state has any abnormal sound;

and step 3: inserting the vacuum pipeline 21 into the bottom of the electrolytic cell 1, pumping bottom sediment to the vacuum tank 2 by the vacuum pump 21, wherein the liquid level is not more than 30 cm when the liquid level is reduced each time; a plurality of suction points of the vacuum pipeline 21 can be uniformly arranged at the bottom of each electrolytic cell 1 according to the size of the electrolytic cell 1 so as to be convenient for completely sucking sediments at the bottom of the electrolytic cell, and the suction points at the bottom of the electrolytic cell 1 can be repeatedly and alternately sucked during suction;

and 4, step 4: stopping the vacuum pump 21 after the vacuum tank 2 is full;

and 5: opening a liquid outlet of the vacuum tank 2;

step 6: closing a valve of the circulating tank 5;

and 7: checking the state of the filter press 4 and determining whether the filter press can be carried out;

and 8: if the filter press 4 can filter, starting the filter press pump 3 to filter and press until the vacuum tank 2 is empty;

and step 9: and (5) circularly operating the step 1 to the step 8. After the filter press pump 3 is started, if the liquid outlet quantity of the filter press 4 is small or the liquid outlet of the vacuum tank 2 is blocked, the valve on the back flushing pipeline 23 can be opened for dredging and purging.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles set forth in the claims should be included in the scope of the present invention.

Claims

1. Combined treatment system of deposit in electrolysis trough, including electrolysis trough (1), its characterized in that, vacuum tank (2), filter-pressing pump (3) and pressure filter (4) are connected gradually in electrolysis trough (1), vacuum tank (2) still is connected with vacuum pump (21), filter-pressing pump (3) and pressure filter (4) still are connected with circulation pond (5).

2. Combined treatment system for sediments inside electrolysis cells, according to claim 1, characterised in that between said electrolysis cell (1) and the vacuum tank (2), between the vacuum tank (2) and the filter-press pump (3) and between the vacuum tank (2) and the vacuum pump (21) there are provided vacuum ducts (22).

3. Combined treatment system for sediments inside electrolysis cells, according to claim 1, characterised in that between said pressure filtration pump (3) and the pressure filter (4) and between the pressure filtration pump (3) and the circulation tank (5) there are pressure filtration ducts (31).

4. Combined treatment system for sediments inside electrolysis cells, according to claim 1, characterised in that said filter press (4) is a plate filter press, the filter press (4) being connected to the circulation tank (5) through a chute (41).

5. The combined treatment system for sediments in an electrolytic cell as claimed in claim 3, wherein a blowback pipe (23) is further connected to the filter-pressing pipe (31) between the filter-pressing pump (3) and the filter press (4), said blowback pipe (23) being connected to the vacuum tank (2).

6. Combined treatment system for deposits in electrolysis cells according to claim 5, wherein the blowback pipe (23) is provided with a valve.