Device for extracting copper from copper-cobalt tailings through backwater replacement

Abstract

The utility model discloses a device for extracting copper from copper-cobalt tailings through backwater replacement. The device comprises a replacement reaction tank (1), an overflow pump tank (2), an overflow weir (3) and a filter sieve plate (4), the replacement reaction tank (1) is separated from the overflow pump tank (2) through an overflow weir (3); the bottom of the replacement reaction tank (1) is a slope, and the slope is downwards communicated with the sponge copper collecting ditch (10); and a filter sieve plate (4) is arranged above the slope at the bottom of the replacement reaction tank (1). Tailing return water makes contact with the waste steel through screen holes of the filtering screen plate, the contact area of the waste steel and the tailing return water is further increased, and the replacement reaction rate is increased. The device is low in construction investment, simple in construction and capable of realizing efficient resource utilization of scrap iron, the produced spongy copper is high in grade and low in cost, and the economic benefit of per ton of copper is remarkable. Tailing return water makes contact with the bottom of the waste steel through screen holes of the filtering screen plate, the contact area of the waste steel and the tailing return water is further increased, and the replacement reaction rate is increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to nonferrous metal hydrometallurgy technical field, and specifically relates to a copper cobalt tailing backwater replacement copper extraction device. BACKGROUND

[0002] In the prior art, a method for recovering copper and cobalt from wet copper smelting cobalt-containing waste liquid is disclosed, which utilizes nanofiltration membrane concentration separation to treat tailing backwater, needs to pretreat the treated copper and cobalt-containing waste liquid to remove impurities including solid particles, suspended solids and oil substances, and has a complex process and high treatment cost, and the nanofiltration membrane concentration separation is only realized in a small-scale test device, and no large-scale industrial application examples are found. SUMMARY

[0003] The utility model provides a copper cobalt tailing backwater replacement copper extraction device, can realize the resource efficient utilization of waste iron, and the produced sponge copper has high grade and low cost, and the economic benefit of ton copper is remarkable.

[0004] In order to solve the above technical problems, the utility model provides a copper cobalt tailing backwater replacement copper extraction device, which is characterized by comprising a replacement reaction tank (1), an overflow pump tank (2), an overflow weir (3) and a filter screen plate (4); the replacement reaction tank (1) is separated from the overflow pump tank (2) by the overflow weir (3); the bottom of the replacement reaction tank (1) is a slope, which is communicated with a sponge copper collecting groove (10) downward; and the filter screen plate (4) is arranged above the slope of the bottom of the replacement reaction tank (1).

[0005] Beneficial effects: The utility model has less construction investment and simple construction, can realize the resource efficient utilization of waste iron, and the produced sponge copper has high grade and low cost, and the economic benefit of ton copper is remarkable. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 The elevation view of the utility model device

[0007] Figure 2 The side view of the utility model device. DETAILED DESCRIPTION

[0008] In order to make the purpose, content and advantages of the utility model more clear, the specific implementation mode of the utility model is described in further detail.

[0009] The utility model discloses a copper cobalt tailing backwater replacement copper extraction device, which comprises a replacement reaction tank (1), an overflow pump tank (2), an overflow weir (3), a filter screen plate (4), a jet submersible pump (5), a universal slide rail (6), a liquid inlet pipe (7), a filter press feeding pump interface (8), an overflow pump interface (9), a sponge copper collecting groove (10);

[0010] The displacement reaction pool (1), overflow pump pool (2), overflow weir (3) and sponge copper collection ditch (10) are the frame body of the device, which is a reinforced concrete structure lined with corrosion-resistant materials or made of stainless steel.

[0011] The displacement reaction pool (1) is separated from the overflow pump pool (2) by the overflow weir (3);

[0012] The bottom of the displacement reaction pool (1) is a slope, which is communicated with the sponge copper collection ditch (10) downward; the displacement reaction pool (1) and the sponge copper collection ditch (10) are located on one side of the overflow weir (3).

[0013] A filter sieve plate (4) is arranged above the slope of the bottom of the displacement reaction pool (1).

[0014] A universal slide rail (6) is horizontally arranged on the top of the displacement reaction pool (1), and the jet submersible pump (5) is hung on the universal slide rail (6); the liquid inlet pipe (7) is arranged on the top of the displacement reaction pool (1).

[0015] The sponge copper collection ditch (10) is provided with a filter press feeding pump interface (8) on the bottom side wall; the overflow pump pool (2) is provided with an overflow pump interface (9) on the bottom side wall.

[0016] Further, the filter sieve plate (4) is a stainless steel sieve plate, and the sieve opening size is 5-20 mm.

[0017] Further, the slope i of the bottom of the displacement reaction pool (1) is greater than 30%, and the slope is towards the sponge copper collection ditch, so that the sponge copper naturally falls into the sponge copper collection ditch (10) after passing through the sieve hole of the filter sieve plate (4) after the displacement is completed.

[0018] Further, the jet submersible pump (5) is a stainless steel variable frequency submersible pump, and the jet water flow and pressure are adjustable.

[0019] Further, the universal slide rail (6) drives the suspended jet submersible pump (5) to move at any position above the filter sieve plate (4).

[0020] Further, the height of the overflow weir (3) is lower than that of the displacement reaction pool (1) and the overflow pump pool (2) by 500-1000 mm.

[0021] The copper cobalt tailings backwater displacement copper extraction device has the following operation steps:

[0022] S1, the waste steel ball, the mill lining plate, the machining cutting iron filings, the material packaging iron frame, the carbon steel plate processing edge material and the like are placed on the filter sieve plate;

[0023] S2, the copper-containing acid tailings backwater is introduced into the replacement reaction tank through the inlet pipe, and the copper-iron replacement reaction is carried out by submerging the waste steel material to generate sponge copper which naturally falls off and is collected to the sponge copper collection ditch through the filter screen plate. The tailings backwater contacts the bottom of the waste steel material through the screen hole of the filter screen plate, further increases the contact area of the waste steel material and the tailings backwater, and accelerates the replacement reaction rate. The tailings backwater is continuously introduced into the overflow pump tank after the liquid level is higher than the overflow weir, and is sent to the CCD washing as washing water through the overflow pump interface;

[0024] S3, the jet submersible pump is started, the generated sponge copper is accelerated to fall off by using the scouring and disturbance of water flow, the solution flow rate in the replacement reaction tank is increased, the copper-iron replacement reaction is accelerated, and the sponge copper is prevented from being coated on the surface of the waste steel material. According to the number, size and position of the waste steel material, the jet direction of the jet submersible pump is adjusted by using the universal slide rail, the jet water amount and water pressure are adjusted, and the surface of the waste steel material is disturbed and scoured to make the copper replacement fall off;

[0025] S4, the generated sponge copper is collected to the sponge copper collection ditch, and is sent to the filter press by the filter press feeding pump interface to dehydrate to obtain the sponge copper product.

[0026] Example 1

[0027] A copper-cobalt hydrometallurgy project, the tailings pond backwater contains Cu 0.67g / L, PH 3.5-4.0, the replacement copper extraction device is used, and the copper in the tailings backwater is replaced and recovered by using the scrap steel balls, waste carbon steel bolts, machining cutting iron filings, cargo carbon steel packaging racks and other scrap steel and iron on the project site. The input scrap steel, angle steel, iron plate and the like are all replaced and dissolved within about 3 months, and the grade ≈90% of the sponge copper product is obtained by filter pressing.

[0028] The economic benefit is considerable, and the same type of project can be popularized and replicated.

[0029] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, without departing from the technical principle of the present application, a number of improvements and deformations can be made, and these improvements and deformations should be regarded as the protection range of the present application.

Claims

1. A copper cobalt tailings backwater displacement copper extraction device characterized by: The device comprises a displacement reaction tank (1), an overflow pump tank (2), an overflow weir (3), and a filter screen plate (4); the displacement reaction tank (1) is separated from the overflow pump tank (2) by the overflow weir (3); the bottom of the displacement reaction tank (1) is a slope, which is communicated with a sponge copper collection groove (10) downward; the filter screen plate (4) is arranged above the slope of the bottom of the displacement reaction tank (1).

2. A copper cobalt tailings backwater displacement copper extraction device according to claim 1, characterized by: The displacement reaction tank (1), the overflow pump tank (2), the overflow weir (3), and the sponge copper collection groove (10) are made of reinforced concrete and lined with a corrosion-resistant material or made of stainless steel.

3. A copper cobalt tailings backwater displacement copper extraction device according to claim 1, characterized by: The height of the overflow weir (3) is lower than that of the displacement reaction tank (1) and the overflow pump tank (2) by 500-1000 mm.

4. A copper cobalt tailings backwater displacement copper extraction device according to any one of claims 1 to 3, characterized in that: A universal slide rail (6) is arranged on the top of the displacement reaction tank (1), and a jet submersible pump (5) is hung on the universal slide rail (6).

5. A copper cobalt tailings backwater displacement copper extraction device according to claim 1 characterised in that: A liquid inlet pipe (7) is arranged on one side of the displacement reaction tank (1).

6. A copper cobalt tailings backwater displacement copper extraction device according to claim 1 characterised in that: A filter press feeding pump interface (8) is arranged on the bottom side wall of the sponge copper collection groove (10); an overflow pump interface (9) is arranged on the bottom side wall of the overflow pump tank (2).

7. A copper cobalt tailings backwater displacement copper extraction device according to claim 1 characterised in that: The filter screen plate (4) is made of stainless steel.

8. A copper cobalt tailings backwater displacement copper extraction device according to claim 1 characterised in that: The size of the screen hole of the filter screen plate (4) is 5-20 mm.

9. A copper cobalt tailings backwater displacement copper extraction device according to claim 1 characterised in that: The slope of the bottom of the displacement reaction tank (1) is greater than 30%, so that the sponge copper naturally falls into the sponge copper collection groove (10) after passing through the screen hole of the filter screen plate (4).

10. A copper cobalt tailings backwater displacement copper extraction device as claimed in claim 4, characterized by: The jet submersible pump (5) is a stainless steel variable frequency submersible pump, and the jet water flow and pressure are adjustable.

Images