Acid wastewater evaporation device in tailing warehouse

Abstract

The utility model relates to an acid wastewater evaporation device in a tailing warehouse, which solves the problem that in the prior art, in order to reduce the construction scale of the tailing warehouse, special evaporation places such as ore storage yards need to be arranged, so that the project construction investment is increased. Comprising a solution pump (1), a solution conveying pipe (2) and a solution dispersing evaporator system (3), the solution dispersing evaporator system (3) is composed of a plurality of spraying pipes, a plurality of spraying heads are arranged on the spraying pipes, the solution pump (1) is provided with a liquid inlet bottom valve (4) and a self-suction tank (5), one end of the self-suction tank (5) is connected with the solution pump (1), and the other end of the self-suction tank (5) is connected with the liquid inlet bottom valve (4); one end of the solution conveying pipe (2) is communicated with the solution pump (1), and the other end is communicated with a spraying pipe of the solution dispersion evaporator system (3); a control regulating valve (7) is arranged on the solution conveying pipe (2); and the solution dispersion evaporator system (3) and the solution conveying pipe (2) are distributed on the protection area of the HDPE film (8) in the reservoir area. The system does not pollute the environment, and can effectively reduce the construction scale of the tailing warehouse and save the construction investment.

Description

Technical Field

[0001] The utility model belongs to the field of nonferrous metal hydrometallurgy, and in particular relates to an acid wastewater evaporation device in a tailings reservoir. Background Art

[0002] Hydrometallurgical technology is becoming increasingly popular and widely used in the field of nonferrous metal metallurgy because of its ability to process complex nonferrous metal minerals and extract valuable metals efficiently and greenly. In the hydrometallurgical process, water runs through the entire production system as a carrier in the process. Due to the continuous influx of new water such as water replenishment in the front-end production process, water for auxiliary material preparation, water for equipment sealing and cooling, and rainwater, the production water system in the hydrometallurgical process is essentially unable to avoid its trend and result of continuous expansion. Therefore, most projects that use hydrometallurgical process flow for valuable metal extraction are equipped with tailings storage to receive smelting waste slag and wastewater to solve environmental protection problems. That is, the tailings storage is an important carrier for receiving system water expansion. Its design storage capacity is highly related to the expansion rate of the water system during the life cycle of the mine. The more water evaporated, the smaller the tailings storage capacity can be set. The smaller the construction scale of the tailings storage, the more construction investment can be saved.

[0003] In order to reduce the construction capacity of the tailings pond, it is generally necessary to set up a special ore yard, and use the acidic return water of the tailings pond to spray the ore yard to reduce the acidic wastewater in the tailings pond, so as to achieve the purpose of balancing and reducing the speed of water expansion in the system. However, setting up a special evaporation site for the ore yard increases the construction investment of the project on the one hand, and on the other hand, there is a constraint of uncertainty in the spraying area due to the leaching cycle of valuable metals in the ore. Utility Model Content

[0004] The utility model provides an acid wastewater evaporation device in a tailings reservoir, thereby solving the problem that in existing hydrometallurgical projects, special evaporation sites such as ore yards need to be set up to reduce the construction scale of tailings reservoirs, which leads to increased project construction investment.

[0005] The utility model is realized by the following technical solutions:

[0006] An acidic wastewater evaporation device in a tailings pond includes a solution pump (1), a solution delivery pipe (2), and a solution dispersion evaporator system (3). The solution dispersion evaporator system (3) consists of multiple spray pipes, and multiple spray heads are arranged on the spray pipes. The solution pump (1) is provided with an inlet bottom valve (4) and a self-priming tank (5). One end of the self-priming tank (5) is connected to the solution pump (1), and the other end is connected to the inlet bottom valve (4); one end of the solution delivery pipe (2) is communicated with the solution pump (1), and the other end is communicated with the spray pipes of the solution dispersion evaporator system (3); a control regulating valve (7) is arranged on the solution delivery pipe (2); the solution dispersion evaporator system (3) and the solution delivery pipe (2) are distributed within the protected area of the HDPE membrane (8) in the pond area.

[0007] The solution pump (1) is further provided with an overflow pipeline (6).

[0008] The overall slope range of the area of the HDPE membrane (8) is 0.05 - 10%, and the slope direction is towards the collection point of the acidic wastewater in the tailings pond.

[0009] The solution delivery pipe (2) is communicated with the solution dispersion evaporator system (3) through multiple branch pipes, and a control regulating valve (7) is arranged on each branch pipe.

[0010] The height difference between the spray heads on the solution dispersion evaporator system (3) and the solution delivery pipe (2) is 0.05 - 1.50 m;

[0011] On the pipeline where the solution delivery pipe (2) is communicated with the solution pump (1) and the solution dispersion evaporator (3), a pressure sensor for interlocking control of the pressure with the frequency converter of the solution pump (1) is arranged.

[0012] The utility model does not require a new evaporation site to consume the acidic wastewater in the tailings pond, does not cause pollution to the environment, can effectively solve the water expansion in the hydrometallurgy process, reduce the construction scale of the tailings pond, and save construction investment. Brief Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the utility model. Detailed Embodiment

[0014] To make the purpose, content, and advantages of the utility model clearer, the following further describes the detailed embodiment of the utility model in detail.

[0015] Such as Figure 1As shown in the figure, the utility model includes a solution pump (1), a solution delivery pipe (2), and a solution dispersion evaporator system (3). The solution dispersion evaporator system (3) consists of multiple spray pipes, and multiple spray heads are arranged on the spray pipes. The solution pump (1) is provided with a liquid inlet bottom valve (4) and a self-priming tank (5). One end of the self-priming tank (5) is connected to the solution pump (1), and the other end is connected to the liquid inlet bottom valve (4); one end of the solution delivery pipe (2) is communicated with the solution pump (1), and the other end is communicated with the spray pipes of the solution dispersion evaporator system (3); a control regulating valve (7) is arranged on the solution delivery pipe (2); the solution dispersion evaporator system (3) and the solution delivery pipe (2) are distributed within the protected area of the HDPE film (8) in the storage area.

[0016] The solution pump (1) is also provided with an overflow pipeline (6); the overflow pipeline (6) is used to assist in regulating the pipeline pressure and at the same time plays a role in protecting the solution pump (1) to prevent the occurrence of water hammer effect.

[0017] The overall slope range of the area of the HDPE film (8) is 0.05 - 10%, and the slope direction is towards the collection point of the acidic wastewater in the tailing pond.

[0018] The solution delivery pipe (2) is communicated with the solution dispersion evaporator system (3) through multiple branch pipes, and a control regulating valve (7) is arranged on each branch pipe.

[0019] The height difference between the spray heads on the solution dispersion evaporator system (3) and the solution delivery pipe (2) is 0.05 - 1.50 m;

[0020] On the pipeline where the solution delivery pipe (2) is communicated with the solution pump (1) and the solution dispersion evaporator system (3), a pressure sensor can be set to be interlocked with the frequency converter of the solution pump (1) to control the pressure, and the evaporation effect of the solution dispersion evaporator system (3) can be automatically controlled. The control regulating valve (7) arranged on the branch pipe between the solution dispersion evaporator system (3) and the solution delivery pipe (2) can arbitrarily control and adjust the evaporation effect of the solution dispersion evaporator system (3) in the area.

[0021] The working process is as follows:

[0022] S1. Open the control regulating valves (7) on the branch pipes of the solution delivery pipe (2) in sequence;

[0023] S2. Start the solution pump (1) to deliver acidic wastewater to the acidic wastewater evaporation device;

[0024] S3. According to the liquid distribution and spraying effect of the solution dispersion evaporator system (3) and the display value of the pressure sensor, adjust the output value of the frequency converter of the solution pump (1), and at the same time adjust the control regulating valve (7) on the branch pipe. After the acidic wastewater evaporation device reaches the best liquid distribution and spraying effect of the solution dispersion evaporator system (3), it enters the normal spraying and natural evaporation process.

[0025] The utility model utilizes the regional protection of the HDPE film in the tail slag storage area to naturally evaporate the acidic wastewater of the system including the tailings pond. The single-day evaporation solution volume is above 6000m 3 or more. It is not necessary to use a newly built ore yard or a new evaporation site to consume the acidic wastewater in the tail slag storage area, which will not cause pollution to the environment. It can effectively solve the water expansion in the hydrometallurgy process, reduce the construction scale of the tail slag storage area and save construction investment.

Claims

1. An acid wastewater evaporation device in a tailings reservoir, characterized by: The invention comprises a solution pump (1), a solution delivery pipe (2) and a solution dispersion evaporator system (3). The solution dispersion evaporator system (3) is composed of a plurality of spray pipes, and a plurality of spray heads are arranged on the spray pipes. The solution pump (1) is provided with a liquid inlet bottom valve (4) and a self-priming tank (5). One end of the self-priming tank (5) is connected to the solution pump (1), and the other end is connected to the liquid inlet bottom valve (4). One end of the solution delivery pipe (2) is connected to the solution pump (1), and the other end is connected to the spray pipe of the solution dispersion evaporator system (3). A control regulating valve (7) is arranged on the solution delivery pipe (2). The solution dispersion evaporator system (3) and the solution delivery pipe (2) are distributed in the HDPE film (8) protection area in the storage area.

2. The acid wastewater evaporation device in the tailings reservoir according to claim 1 is characterized by: The solution pump (1) is also provided with an overflow pipeline (6).

3. The acid wastewater evaporation device in the tailings reservoir according to claim 1 is characterized by: The overall slope of the HDPE film (8) area is in the range of 0.05-10%, and slopes toward the collection point of the acid wastewater in the tailings reservoir.

4. The acid wastewater evaporation device in the tailings reservoir according to claim 1 is characterized by: The solution delivery pipe (2) is connected to the solution dispersion evaporator system (3) through a plurality of branch pipes, and each branch pipe is provided with a control regulating valve (7).

5. The acid wastewater evaporation device in the tailings reservoir according to claim 1 is characterized by: The height difference between the spray head on the solution dispersion evaporator system (3) and the solution delivery pipe (2) is 0.05-1.50 m.

6. The acid wastewater evaporation device in the tailings reservoir according to claim 1 is characterized by: A pressure sensor interlocked with the frequency converter of the solution pump (1) for controlling the pressure is provided on the pipeline connecting the solution delivery pipe (2) with the solution pump (1) and the solution dispersion evaporator system (3).

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