Device for treating liquid-solid slurry residues

Abstract

The utility model relates to the technical field of liquid-solid pulp slag, in particular to a liquid-solid pulp slag treatment device which comprises a transfer tank, a main process pipeline is arranged on the transfer tank, an annular collecting pipeline is arranged on the main process pipeline, the main process pipeline is communicated with the annular collecting pipeline, an ore grinding machine for grinding pulp slag is arranged on the main process pipeline, and the annular collecting pipeline is communicated with the ore grinding machine. The main process pipeline is provided with an ore grinding machine, the ore grinding machine is provided with two leaching tanks for soaking slurry residues, the ore grinding machine is provided with two unloading hydrolysis tanks, the main process pipeline is provided with an induced draft fan for extracting gas, and the induced draft fan is provided with a primary absorption tower for absorbing the gas. Through the arrangement of the first-stage absorption tower and the second-stage absorption tower, gas generated after slurry residue leaching can be reasonably and effectively absorbed, potential safety hazards caused by the gas to the surrounding environment and workers are avoided, and the second-stage absorption tower can improve the gas absorption efficiency, so that the phenomenon of environmental pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid-solid slurry slag, in particular to a liquid-solid slurry slag processing device. Background Art

[0002] Liquid-solid slurry usually refers to the mixed flow of liquid and solid particles involved in industrial processes. In order to effectively handle and transport such materials, various pumps and equipment are used. For example, in solid-liquid two-phase flow, centrifugal slurry pumps are a common choice for conveying fluids containing solid particles while preventing blockage and reducing wear. Non-clogging pumps are also used in similar application scenarios, including vortex pumps, single-channel pumps, multi-channel pumps, etc.

[0003] Existing pulp residue processing enterprises use alkaline solution to hydrolyze the pulp residue to ensure that the pH of the hydrolyzed solution is around 7, and then filter it. The filtered residue is placed in a soaking tank and soaked in acid for 5-7 days. The filtrate is used to produce sponge copper. This method has a low copper recovery rate of only about 50%, and it occupies a large area, causes great pollution, and has low efficiency.

[0004] Therefore, we designed a device for liquid-solid slurry treatment. Utility Model Content

[0005] The utility model aims to solve the problem of low efficiency in the prior art and provides a device for treating liquid-solid slurry residue.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A device for treating liquid-solid slurry comprises a transfer tank, a main process pipeline is provided on the transfer tank, a ring collecting pipeline is provided on the main process pipeline, the main process pipeline is communicated with the ring collecting pipeline, a grinding machine for grinding slurry is provided on the main process pipeline, two leaching tanks for soaking slurry are provided on the grinding machine, two unloading hydrolysis tanks are provided on the grinding machine, an induced draft fan for extracting gas is provided on the main process pipeline, and a primary absorption tower for absorbing gas is provided on the induced draft fan.

[0008] Preferably, the grinding mill is connected to the main process pipeline through an auxiliary pipe, and the auxiliary pipe is provided with a first branch pipe and a second branch pipe.

[0009] Preferably, the leaching tank is fixedly connected to the first branch pipe and is in communication with each other, and the leaching tanks are arranged linearly.

[0010] Preferably, the unloading hydrolysis tank is fixedly connected to the second bifurcation pipe and is in communication with each other, the unloading hydrolysis tanks are arranged linearly, and a liquid-solid slurry slag tank is provided on the unloading hydrolysis tanks.

[0011] Preferably, the induced draft fan is communicated with the annular collecting pipe and is fixedly connected to the annular collecting pipe via fasteners.

[0012] Preferably, the primary absorption tower is connected to the ring collecting pipe through a first exhaust fan, the first exhaust fan is fixedly connected to the ring collecting pipe through fasteners, a secondary absorption tower is provided on the ring collecting pipe, and the secondary absorption tower is connected to the ring collecting pipe through a second exhaust fan.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model arranges a primary absorption tower and a secondary absorption tower, so that the gas generated after the pulp residue is leached can be reasonably and effectively absorbed, avoiding the potential safety hazards of the gas to the surrounding environment and workers, and the secondary absorption tower can improve the efficiency of gas absorption, thereby reducing the phenomenon of environmental pollution.

[0015] 2. The utility model provides the first exhaust fan and the second exhaust fan so that the first absorption tower and the second absorption tower can quickly absorb the gas generated by the slurry residue to avoid gas leakage from the ring collection pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a liquid-solid slurry slag processing device proposed by the utility model;

[0017] Figure 2 This is a top view of a liquid-solid slurry slag processing device proposed by the utility model.

[0018] In the figure: 1. Transfer tank; 2. Main process pipeline; 3. Ring collection pipeline; 4. Grinding mill; 5. Leaching tank; 6. Unloading hydrolysis tank; 7. Liquid-solid slurry slag tank; 8. Induced draft fan; 9. First exhaust fan; 10. Primary absorption tower; 11. Second exhaust fan; 12. Secondary absorption tower. DETAILED DESCRIPTION

[0019] Reference Figure 1-Figure 2 A device for treating liquid-solid slurry includes a transfer tank 1, which is used for transferring slurry materials. A main process pipeline 2 is a pipeline for mainly conveying slurry in the prior art. A ring collecting pipeline 3 is a pipeline for conveying gas generated after leaching of slurry, and both are connected through components.

[0020] A grinding mill 4 for grinding pulp and slag is provided on the main process pipeline 2. The grinding mill 4 mainly grinds the pulp and slag uniformly to facilitate later processing. The grinding mill 4 is connected to the main process pipeline 2 through an auxiliary pipe. The auxiliary pipe discharges the pulp and slag in the main process pipeline 2 into the grinding mill 4. The auxiliary pipe is provided with a first branch pipe and a second branch pipe, two dispersion pipes.

[0021] Two leaching tanks 5 for immersing slurry are provided on the grinding mill 4. The leaching tanks 5 are used as leaching process tanks for slurry, which is the prior art. The leaching tanks 5 are fixedly connected to the first branch pipe, and the first branch pipe discharges the slurry in the grinding mill 4 and is connected. The leaching tanks 5 are arranged linearly. There are two leaching tanks 5 in total, and they are arranged in parallel.

[0022] Two unloading hydrolysis tanks 6 are provided on the grinding mill 4. The unloading hydrolysis tanks 6 are prior art and are a treatment process equipment for degrading organic matter in organic wastewater through a hydrolysis reaction. The unloading hydrolysis tanks 6 are fixedly connected to the second branch pipe and are interconnected. The unloading hydrolysis tanks 6 are arranged linearly, with a total of two, and are arranged in parallel. A liquid-solid slurry tank 7 is provided on the unloading hydrolysis tank 6 for storing slurry in a liquid-solid state.

[0023] The main process pipeline 2 is provided with an induced draft fan 8 for extracting gas. The induced draft fan 8 is a device used in the prior art to guide the direction of the phoenix body. The induced draft fan 8 is connected to the annular collecting pipeline 3. Through the connection, the gas in the annular collecting pipeline 3 can be sucked out, and the induced draft fan 8 is fixedly connected to the annular collecting pipeline 3 by fasteners, which are fixed components.

[0024] A primary absorption tower 10 for absorbing gas is provided on the induced draft fan 8. The primary absorption tower 10 is used to absorb the gas generated after the slurry leaching. The primary absorption tower 10 is connected to the annular collection pipe 3 through the first exhaust fan 9. The first exhaust fan 9 is used to maintain the ventilation effect of the primary absorption tower 10. The first exhaust fan 9 is fixedly connected to the annular collection pipe 3 through fasteners. A secondary absorption tower 12 is provided on the annular collection pipe 3. The secondary absorption tower 12 is used to improve the absorption efficiency of the gas, and the secondary absorption tower 12 is connected to the annular collection pipe 3 through the second exhaust fan 11. The second exhaust fan 11 is used to improve the ventilation effect of the secondary absorption tower 12.

[0025] The working principle of the utility model is as follows: no alkali is used for neutralization during hydrolysis, the acid content of the solution is maintained at 20%P, and then the slurry residue after hydrolysis is ground into about 200 meshes by a grinding machine 4, and then leached in a leaching tank. The copper recovery rate of this process is about 99%, and the production cycle is basically within 8 hours. No additional acid is needed, and the cost is greatly reduced.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for treating liquid-solid slurry slag, comprising a transfer tank (1), wherein a main process pipeline (2) is provided on the transfer tank (1), wherein a ring collecting pipeline (3) is provided on the main process pipeline (2), wherein the main process pipeline (2) is connected to the ring collecting pipeline (3), wherein: The main process pipeline (2) is provided with a grinding mill (4) for grinding pulp and slag, the grinding mill (4) is provided with two leaching tanks (5) for soaking pulp and slag, the grinding mill (4) is provided with two unloading hydrolysis tanks (6), the main process pipeline (2) is provided with an induced draft fan (8) for extracting gas, and the induced draft fan (8) is provided with a primary absorption tower (10) for absorbing gas.

2. The device for treating liquid-solid slurry according to claim 1, characterized in that: The grinding mill (4) is connected to the main process pipeline (2) via an auxiliary pipe, and the auxiliary pipe is provided with a first branch pipe and a second branch pipe.

3. The device for treating liquid-solid slurry according to claim 2, characterized in that: The leaching tank (5) is fixedly connected to the first branch pipe and is in communication with each other, and the leaching tanks (5) are arranged in a linear manner.

4. The device for treating liquid-solid slurry according to claim 3, characterized in that: The unloading hydrolysis tank (6) is fixedly connected to the second bifurcated pipe and is in communication with each other. The unloading hydrolysis tank (6) is arranged in a linear manner. A liquid-solid slurry slag tank (7) is provided on the unloading hydrolysis tank (6).

5. The device for treating liquid-solid slurry according to claim 1, characterized in that: The induced draft fan (8) is in communication with the annular collecting pipe (3), and is fixedly connected to the annular collecting pipe (3) via fasteners.

6. The device for treating liquid-solid slurry according to claim 1, characterized in that: The primary absorption tower (10) is connected to the ring collection pipeline (3) via a first exhaust fan (9), the first exhaust fan (9) is fixedly connected to the ring collection pipeline (3) via a fastener, a secondary absorption tower (12) is provided on the ring collection pipeline (3), and the secondary absorption tower (12) is connected to the ring collection pipeline (3) via a second exhaust fan (11).

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