High-concentration copper bath solution recovery system

Abstract

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.

Description

Technical Field

[0001] This utility model relates to the technical field of copper sulfate crystal collection, and specifically to a high-concentration copper bath recovery system. Background Technology

[0002] In the copper sulfate recovery process, the production liquid needs to be treated in order to ultimately collect copper sulfate crystals. However, in the current recovery process, due to the high temperature, the conversion rate of copper sulfate crystals is poor, which affects the treatment and recycling of the production liquid. Utility Model Content

[0003] The purpose of this invention is to provide a high-concentration copper bath recovery system to solve the above problems.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A high-concentration copper bath recovery system includes a bath exchange tank, which is used to pre-cool the bath solution inside.

[0006] A cooling crystallization tank, which is connected to the liquid exchange tank via a pipe, is used to produce copper sulfate crystals;

[0007] A separation conveyor is connected to the cooling crystallization tank via a pipeline, and the separation conveyor is used to transport the copper sulfate crystals generated in the cooling crystallization tank to the outside.

[0008] A collection tank, connected to the separation conveyor, is used to collect the copper sulfate crystals.

[0009] As a further description of the above technical solution, it includes a mother liquor collection tank, which is connected to the tank liquid exchange tank, the cooling crystallization tank, the separation conveyor and the collection bucket via pipelines.

[0010] As a further description of the above technical solution, the tank liquid exchange tank is provided with a first heat exchange coil, the tank liquid exchange tank is provided with a first inlet and a first outlet, the first inlet is used to input the production liquid, and the first outlet is used to output the pre-cooled production liquid.

[0011] As a further description of the above technical solution, the cooling crystallization tank includes a tank body, the inner wall of the tank body is provided with a cooling system, the cavity of the tank body is provided with a stirring rod, and the stirring rod is provided with multiple sieves from top to bottom, and the sieves are provided with multiple holes.

[0012] As a further description of the above technical solution, the bottom outlet of the cooling crystallization tank is an inverted triangle.

[0013] As a further description of the above technical solution, the separating conveyor is a screw conveyor, which includes a cylinder and a screw blade is provided inside the cylinder.

[0014] As a further description of the above technical solution, a vibration electrode is installed on the separating conveyor, and the vibration electrode is used to apply a small vibration to the separating conveyor.

[0015] As a further description of the above technical solution, a contact pin is connected to the end of the separating conveyor.

[0016] As a further description of the above technical solution, the collection bucket is a water filter tank, and a drip receiving plate is provided below the water filter tank. The drip receiving plate is connected to the mother liquor collection tank through a water collection pump.

[0017] As a further description of the above technical solution, the cooling crystallization tank, the collection tank, the mother liquor collection tank, and the end of the separation conveyor are all equipped with liquid level controllers.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. This utility model, by setting up a liquid exchange tank, a cooling crystallization tank, a separation conveyor, and a copper sulfate collection tank, can effectively improve the recovery efficiency of copper sulfate crystals and at the same time effectively increase the recovery rate of the production liquid, making it more energy-saving and environmentally friendly.

[0020] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the high-concentration copper bath recovery system provided by this utility model.

[0022] Reference numerals: 100, liquid exchange tank; 110, first heat exchange coil; 120, first inlet; 130, first outlet; 200, cooling crystallization tank; 210, tank body; 220, cooling system; 221, cooling water coil; 222, cooling water pump; 230, stirring rod; 240, sieve tray; 300, separation conveyor; 400, collection bucket; 410, drip receiving tray; 420, water collection pump; 500, mother liquor collection tank; 510, mother liquor lift pump; 600, liquid level controller. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, in one embodiment, a high-concentration copper bath recovery system includes a bath exchange tank 100, which is used to pre-cool the bath solution inside.

[0025] Cooling crystallization tank 200 is connected to tank liquid exchange tank 100 via a pipe. Cooling crystallization tank 200 is used to produce copper sulfate crystals.

[0026] The separating conveyor 300 is connected to the cooling crystallization tank 200 via a pipeline. The separating conveyor 300 is used to transport the copper sulfate crystals generated in the cooling crystallization tank 200 to the outside.

[0027] Collection tank 400 is connected to separation conveyor 300 and is used to collect copper sulfate crystals.

[0028] Optionally, the bath liquid exchange tank 100 is a first cavity integrated into a single housing, and is connected to the production liquid via a conduit. The bath liquid exchange tank 100 contains a first heat exchange coil 110 filled with refrigerant. In some embodiments, the first heat exchange coil 110 can be in a circumferential or wall-mounted form. In some embodiments, the circumferential form can be transverse or longitudinal. In some embodiments, the refrigerant in the first heat exchange coil 110 can be industrial cooling water or coolant from the cooling crystallization tank 200.

[0029] In some embodiments, a horizontally circumferential first heat exchange coil 110 is used, containing chilled liquid from the cooling crystallization tank 200. The tank liquid from the production line can be transported to the tank liquid exchange tank 100 through the first inlet 120. This allows the tank liquid from the production line to undergo pre-cooling via the first heat exchange coil 110, utilizing the cooling capacity of the liquid in the cooling crystallization tank 200, thus better meeting energy-saving requirements. Simultaneously, the solution in the heat exchange coil can reach a temperature of approximately 25°C after passing through the tank liquid exchange tank 100. This prevents localized crystallization during the return of the tank liquid to the production line, avoiding pipe blockage and ensuring equipment operation.

[0030] Optionally, the first output port 130 in the liquid exchange tank 100 can be connected to the liquid level controller 600 of the cooling crystallization tank 200 to control the input of the liquid into the cooling crystallization tank 200, so as to avoid the solution overflowing from the cooling crystallization tank 200 or the continuous liquid supply causing the temperature of the cooling crystallization tank 200 to rise and the cold energy to be lost.

[0031] Optionally, the cooling crystallization tank 200 is connected to the liquid exchange tank 100 and the separation conveyor 300 via a pipeline. The cooling crystallization tank 200 consists of a stirring rod 230, a sieve plate 240, a tank body 210, and a cooling system 220.

[0032] The cooling system 220 can be a cooling water coil 221, a cooling water pump 222, or a combination of both. In some embodiments, the cooling coil 221 can be wrapped around the wall of the tank 210, forming a partition layer between the coil and the tank 210. Increasing the partition layer can prevent copper sulfate crystals from forming in the coil during cooling, thus avoiding difficulties in cleaning the equipment. Furthermore, the partition layer facilitates the removal of crystalline copper sulfate adsorbed on the tank wall by the stirring blades on the stirring rod 230. By connecting the cooling pump to the cooling water coil 221 and increasing the circulation frequency, the cooling effect is enhanced, preventing insufficient cooling system 220 configuration from affecting the crystallization effect. This method can reduce the limitations on equipment operation.

[0033] Optionally, a stirring rod 230 is provided inside the tank 210. The stirring rod 230 is driven by a motor. In some embodiments, the stirring rod 230 can be a bladed stirring rod 230, with the angle between the blade and the stirring rod 230 being 30-90°. Preferably, the angle between the blade and the stirring rod 230 is 60-90°. Optionally, in some embodiments, the stirring rod 230 is a scraper-type stirring blade, with the scraper approximately 5mm away from the stirring rod 230.

[0034] The stirring rod 230 has multiple sieve discs 240 arranged from top to bottom. There can be three or more sieve discs 240 evenly distributed on the stirring rod 230. The sieve disc 240 closest to the groove opening has eight holes evenly distributed in it, and the number of holes in the sieve discs 240 from top to bottom increases in the order of 22+2n. A scraper-type stirring blade is distributed between each sieve disc 240.

[0035] Preferably, the sieve plate 240 and scraper-type stirring rod 230 in the cooling crystallization tank 200 are optimal. The scraper-type stirring rod 230 can not only make the solution uniformly stirred and accelerate the cooling efficiency, but also stir and sweep some of the crystals formed in the non-porous areas of the sieve plate 240 to the bottom of the tank. By adding the sieve plate 240, a local temperature difference can be formed in the tank solution. The solution exchanges through the orifice, which can avoid the loosening of crystals caused by rapid temperature changes, thus affecting the quality of the crystallized copper sulfate. At the same time, the temperature at the bottom is relatively low, which can quickly produce copper sulfate crystals, forming an induced crystallization effect and accelerating the crystal formation.

[0036] Optionally, the output port of the cooling crystallization tank 200 connected to the separation conveyor 300 is inverted triangular in shape, which is more conducive to the sliding of crystals. The cooling coil in the partition layer on the wall of the output port is connected to the cooling coil on the wall of the main tank, and is also connected to the cooling coil on the wall of the separation conveyor 300, forming an integrated cooling system 220. This system ensures a low-temperature environment for the cooling crystallization tank 200 and its connected tanks, reduces the loss of cold energy, and increases the cooling crystallization efficiency.

[0037] Optionally, the separating conveyor 300 is a screw conveyor, which includes a cylinder with helical blades inside.

[0038] Optionally, it also includes a mother liquor collection tank 500. The area below the separation conveyor 300 is a mother liquor collection area. Under the action of the mother liquor booster pump 510, the collected mother liquor and the solution output from the cooling crystallization tank 200 are combined and fed into the tank liquid exchange tank 100.

[0039] Optionally, a low-frequency vibrating electrode is also installed on the separating conveyor 300 to prevent excessively fine copper sulfate crystals from clogging the spiral conveyor during transportation, which could lead to equipment jamming due to long-term accumulation. Simultaneously, to prevent crystal slippage caused by vibration, the spiral blades of the equipment are designed with a threaded pattern to increase the roughness between the crystals and the spiral blades.

[0040] Optionally, the end of the separating conveyor 300 is connected to a collection tank 400 with a contact pin that can control the cooling and crystallization of copper sulfate to prevent copper sulfate crystals from overflowing.

[0041] Optionally, the collection tank 400 is a water filter tank, and a drip receiving plate 410 is provided below the water filter tank. The drip receiving plate 410 is connected to the mother liquor collection tank 500 through a water collection pump 420, so that the collected mother liquor can be recycled back to the mother liquor collection tank 500 for reuse.

[0042] A recycling process for a high-concentration copper bath solution recovery system is also provided, including the following steps:

[0043] The saturated solution is fed into the cavity of the solution exchange tank 100 via a pipeline, where it undergoes initial cooling through heat exchange.

[0044] The solution in the exchange tank 100 is fed into the cooling crystallization tank 200 through a pipeline by a control valve. The stirring rod 230 in the cooling crystallization tank 200 drives the scraper-type stirring blades, and under the action of the sieve plate 240, a multi-stage temperature fluid layer is formed. The saturated solution undergoes solution exchange in the sieve plate 240 and cools at the bottom of the tank to form copper sulfate crystals.

[0045] Part of the solution in the cooling crystallization tank 200 is converted into copper sulfate crystals and enters the separation and transportation equipment. Under the action of the spiral blades, it is transported to the collection tank 400. The other part of the mother liquor is combined with the residual liquid in the separation and transportation process through the pipeline.

[0046] The mother liquor is fed into the coil of the tank liquid exchange tank 100 by the mother liquor booster pump 510 for cooling and exchange, and finally output into the integrated equipment and fed into the production tank liquid.

[0047] All standard parts used in this utility model can be purchased from the market, and non-standard parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-concentration copper bath recovery system, characterized in that, Includes a bath liquid exchange tank, which is used to pre-cool the bath liquid inside; A cooling crystallization tank, which is connected to the liquid exchange tank via a pipe, is used to produce copper sulfate crystals; A separation conveyor is connected to the cooling crystallization tank via a pipeline, and the separation conveyor is used to transport the copper sulfate crystals generated in the cooling crystallization tank to the outside. A collection tank, connected to the separation conveyor, is used to collect the copper sulfate crystals.

2. The high-concentration copper bath recovery system according to claim 1, characterized in that, It includes a mother liquor collection tank, which is connected to the tank liquid exchange tank, the cooling crystallization tank, the separation conveyor and the collection bucket via pipelines.

3. The high-concentration copper bath recovery system according to claim 1, characterized in that, The liquid exchange tank is equipped with a first heat exchange coil, and the liquid exchange tank is equipped with a first inlet and a first outlet. The first inlet is used to input the production liquid, and the first outlet is used to output the pre-cooled production liquid.

4. The high-concentration copper bath recovery system according to claim 1, characterized in that, The cooling crystallization tank includes a tank body, an inner wall of which is equipped with a cooling system, a stirring rod is provided in the cavity of the tank body, and multiple sieves are arranged on the stirring rod from top to bottom, with multiple holes opened on the sieves.

5. The high-concentration copper bath recovery system according to claim 1, characterized in that, The bottom outlet of the cooling crystallization tank is an inverted triangle.

6. The high-concentration copper bath recovery system according to claim 1, characterized in that, The separating conveyor is a screw conveyor, which includes a cylinder with helical blades inside.

7. The high-concentration copper bath recovery system according to claim 1, characterized in that, The separating conveyor is equipped with a vibration electrode, which is used to apply minute vibrations to the separating conveyor.

8. The high-concentration copper bath recovery system according to claim 1, characterized in that, The end of the separating conveyor is connected to a contact pin.

9. The high-concentration copper bath recovery system according to claim 2, characterized in that, The collection tank is a water filter tank, and a drip receiving plate is provided below the water filter tank. The drip receiving plate is connected to the mother liquor collection tank through a water collection pump.

10. The high-concentration copper bath recovery system according to claim 2, characterized in that, The cooling crystallization tank, the collection tank, the mother liquor collection tank, and the end of the separation conveyor are all equipped with liquid level controllers.

Images