Efficient recycling system for production water

Abstract

The utility model discloses an efficient recycling system for production water, and belongs to the technical field of metallurgical equipment. A washing water inlet pipe is connected to the first-stage centrifugal machine and the second-stage centrifugal machine, and a manual ball valve, a pneumatic ball valve and a liquid transfer pump are arranged on the water inlet pipe; a liquid outlet pipe of the washing tank is connected to the secondary centrifugal machine, and a manual ball valve, a pneumatic ball valve and a liquid transfer pump are arranged on the liquid outlet pipe. The first-stage centrifugal machine is provided with a liquid inlet pipe and a discharging pipe, and materials finally enter the washing tank; the second-stage centrifugal machine is provided with a washing water inlet pipe, a washing tank liquid outlet pipe and a discharging pipe, the washing water inlet pipe comes from the washing tank, the washing tank liquid outlet pipe comes from the washing tank, washing water enters the washing tank, and materials finally enter the microwave drying device. The system can prevent fresh water from entering, thoroughly solve the problem of liquid expansion in hydrometallurgy, guarantee the product quality, solve the problem of material hanging of filter cloth of a primary centrifuge and a secondary centrifuge, prolong the service life of the filter cloth, solve the problem of vibration of the primary centrifuge and the secondary centrifuge, and improve the operation rate of equipment.

Description

Technical Field

[0001] The utility model relates to a production water efficient recycling system, belonging to the technical field of metallurgical equipment. Background Art

[0002] Copper is widely used in the fields of automobiles, machinery, electronics, and military industry. After the pyrometallurgical enterprises produce metallic copper, the intermediate materials will produce three kinds of solid wastes: black copper mud, white smoke, and arsenic filter cakes, which need to be treated by hydrometallurgy for harmlessness, reduction, and resource utilization. In the face of new processes, new equipment, new technologies, and new materials, it is particularly important to ensure safe and stable production. For enterprises producing arsenic trioxide, it is urgent to solve the problems of liquid expansion, product quality, and stable operation of equipment. Therefore, on the basis of the original design, it is particularly critical to add a production water efficient recycling system to solve the above problems. Utility Model Content

[0003] In order to solve the deficiencies of the above-mentioned prior art, the utility model provides a production water efficient recycling system, which can prevent new water from entering, completely solve the problem of hydrometallurgical liquid expansion, ensure product quality, solve the problem of material hanging on the filter cloth of the first and second centrifuges, extend the service life of the filter cloth, solve the vibration problem of the first and second centrifuges, improve the equipment operation rate, and reduce the labor intensity of employees.

[0004] The utility model solves the technical problem by adopting the following technical scheme: a production water efficient recycling system, comprising a primary centrifuge, a secondary centrifuge, a solution inlet pipe of the primary centrifuge, a liquid removal pipe of the primary centrifuge, a material discharge pipe of the primary centrifuge, a liquid removal pipe of the secondary centrifuge, a material discharge pipe of the secondary centrifuge, a solution storage tank, a washing tank, a stirring paddle of the washing tank, a microwave drying device, a liquid discharge pipe of the washing tank, and also comprising a pneumatic ball valve, a manual ball valve, a liquid transfer pump, a washing tank, a washing water inlet pipe of the primary centrifuge, a washing water inlet pipe of the secondary centrifuge, a flushing pipeline water pipe, a washing water outlet pipe of the secondary centrifuge, a primary centrifuge tray and a secondary centrifuge tray.

[0005] A manual ball valve E is connected in series to the solution inlet pipe of the first-stage centrifuge; a manual ball valve F is connected in series to the deliquidation pipe of the first-stage centrifuge, and the deliquidation pipe of the first-stage centrifuge is connected in series to the solution storage tank; a manual ball valve B, a liquid transfer pump A, a manual ball valve A, a pneumatic ball valve A and a manual ball valve C are connected in series to the wash water inlet pipe of the first-stage centrifuge, and the lower part of the first-stage centrifuge is connected to the first-stage centrifuge tray and the first-stage centrifuge discharge pipe, and the first-stage centrifuge discharge pipe is connected to the washing tank;

[0006] The washing water inlet pipe of the secondary centrifuge is connected in series with a manual ball valve B, a liquid transfer pump A, a manual ball valve A, a pneumatic ball valve A and a manual ball valve J. The washing water outlet pipe of the secondary centrifuge leads to the washing tank.

[0007] The lower part of the secondary centrifuge is connected to the microwave drying device through a secondary centrifuge discharge pipe;

[0008] A first-stage centrifuge tray is provided on the first-stage centrifuge, a second-stage centrifuge tray is provided on the second-stage centrifuge, a second-stage centrifuge washing water outlet pipe is provided under the second-stage centrifuge tray, and the second-stage centrifuge washing water outlet pipe is connected to the washing tank;

[0009] The liquid outlet pipe of the washing tank is connected in series with a manual ball valve G, a liquid transfer pump B, a pneumatic ball valve B, a manual ball valve H, and a manual ball valve I;

[0010] A flushing pipe is connected to the liquid outlet pipe of the washing tank;

[0011] The washing tank is connected to the washing water tank through the washing tank outlet pipe, the secondary centrifuge, and the secondary centrifuge deliquid pipe. A manual ball valve D is provided on the secondary centrifuge deliquid pipe to achieve efficient recycling of the produced water inside the system.

[0012] Furthermore, the inclination angle of the wash water outlet pipe of the secondary centrifuge is 45° with the central axis of the secondary centrifuge.

[0013] Furthermore, a washing tank stirring paddle is provided in the washing tank.

[0014] Furthermore, the secondary centrifuge tray can be retractable.

[0015] The beneficial effects of the utility model are as follows: by comparing with the case where the washing water tank, the washing water inlet pipe of the first centrifuge, the washing water inlet pipe of the second centrifuge, and the washing water outlet pipe of the second centrifuge are not added, the actual production test effect on site is better after adding, which can not only avoid the entry of new water, effectively solve the internal liquid expansion of the system, but also solve the vibration problem of the first centrifuge and the vibration problem of the second centrifuge, and realize the comprehensive recycling of water inside the system. The washing water can also remove impurities from the product and improve the product quality. It can ensure continuous and stable production on site, reduce the labor intensity of personnel, improve the operating efficiency of equipment, break through the difficulties, and has promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Numbers in the figure:

[0019] 1. Pneumatic ball valve A, 2. Manual ball valve A, 3. Liquid transfer pump A, 4. Manual ball valve B, 5. Washing tank, 6. Secondary centrifuge deliquidation pipe, 7. Primary centrifuge washing water inlet pipe, 8. Manual ball valve C, 9. Secondary centrifuge washing water inlet pipe, 10. Manual ball valve D, 11. Primary centrifuge solution inlet pipe, 12. Manual ball valve E, 13. Manual ball valve F, 14. Solution storage tank, 15. Washing tank stirring paddle, 16. Primary centrifuge discharge pipe, 17. Washing tank, 18. Manual ball valve G, 19. Liquid transfer pump B, 20. Pneumatic ball valve B, 21. Manual ball valve H, 22. Water pipe for flushing pipeline, 23. Water outlet pipe for secondary centrifuge, 24. Microwave drying device, 25. Liquid outlet pipe of washing tank, 26. Tray for primary centrifuge, 27. Primary centrifuge, 28. Discharge pipe of secondary centrifuge, 29. Tray for secondary centrifuge, 30. Secondary centrifuge, 31. Manual ball valve I, 32. Manual ball valve J, 33. Liquid removal pipe of primary centrifuge. DETAILED DESCRIPTION

[0020] like Figure 1 As shown, a production water efficient recycling system includes a pneumatic ball valve, a manual ball valve, a liquid transfer pump, a first-stage centrifuge 27, a second-stage centrifuge 30, a first-stage centrifuge solution inlet pipe 11, a first-stage centrifuge deliquidation pipe 33, a first-stage centrifuge discharge pipe 16, a first-stage centrifuge wash water inlet pipe 7, a second-stage centrifuge deliquidation pipe 6, a second-stage centrifuge discharge pipe 28, a second-stage centrifuge wash water inlet pipe 9, a second-stage centrifuge wash water outlet pipe 23, a solution storage tank 14, a washing tank 17, a washing tank stirring paddle 15, a microwave drying device 24, a washing tank outlet pipe 25, a washing water tank 5, a flushing pipeline water pipe 22, a first-stage centrifuge tray 26 and a second-stage centrifuge tray 29.

[0021] A manual ball valve E12 is connected in series to the first-stage centrifuge solution inlet pipe 11; a manual ball valve F13 is connected in series to the first-stage centrifuge deliquidation pipe 33, and the first-stage centrifuge deliquidation pipe 33 is connected to the solution storage tank 14; a manual ball valve B4, a liquid transfer pump A3, a manual ball valve A2, a pneumatic ball valve A1 and a manual ball valve C8 are connected in series to the first-stage centrifuge wash water inlet pipe 7, and the lower part of the first-stage centrifuge 27 is connected to the first-stage centrifuge tray 26 and the first-stage centrifuge discharge pipe 16, and the first-stage centrifuge discharge pipe 16 is connected to the washing tank 17;

[0022] The secondary centrifuge washing water inlet pipe 9 is connected in series with a manual ball valve B4, a liquid transfer pump A3, a manual ball valve A2, a pneumatic ball valve A1 and a manual ball valve J32, and the secondary centrifuge washing water outlet pipe leads to the washing tank 17;

[0023] The secondary centrifuge 30 is connected to the microwave drying device 24 through the secondary centrifuge discharge pipe 28;

[0024] A primary centrifuge tray 26 is provided on the primary centrifuge 27, a secondary centrifuge tray 29 is provided on the secondary centrifuge 30, a secondary centrifuge wash water outlet pipe 23 is provided under the secondary centrifuge tray 29, and the secondary centrifuge wash water outlet pipe 23 is connected to the washing tank 17;

[0025] The washing tank liquid outlet pipe 25 is connected in series with a manual ball valve G18, a liquid transfer pump B19, a pneumatic ball valve B20, a manual ball valve H21, and a manual ball valve I31;

[0026] A flushing pipe 22 is connected to the washing tank outlet pipe 25. Due to the particularity of the process, the product has a large specific gravity. In addition, the indoor temperature is relatively low in winter, and the material is easy to harden and block the pipe. The flushing pipe 22 is needed to flush and dredge the material and carry it to the secondary centrifuge 30 to reduce the labor intensity of personnel.

[0027] The washing tank 17 is connected to the washing tank 5 through the washing tank outlet pipe 25, the secondary centrifuge 30, and the secondary centrifuge deliquidation pipe 6. A manual ball valve D10 is provided on the secondary centrifuge deliquidation pipe 6 to achieve efficient recycling of the produced water inside the system.

[0028] A washing tank stirring paddle 15 is provided in the washing tank 17 .

[0029] The filter cloth of the secondary centrifuge 30 needs to be cleaned regularly, otherwise the process cannot be guaranteed to be continuously and stably produced due to the vibration of the centrifuge. When the material is running normally, the on-site personnel open the manual ball valve G18, the manual ball valve H 21 and the manual ball valve I 31, the remote personnel open the pneumatic ball valve B20, and finally start the liquid transfer pump B19, and the secondary centrifuge 30 is fed; when unloading, the secondary centrifuge tray 29 extends, and the material goes down to the microwave drying device 24; when the filter cloth is cleaned, the secondary centrifuge tray 29 retracts, and the washing water is retained from the secondary centrifuge washing water outlet pipe 23 to the washing tank 17 to avoid interfering with the operation of the microwave drying device 24.

[0030] Through field tests, it is found that when the secondary centrifuge washing water outlet pipe 23 directly enters the washing tank 17 without an angle, the material frequently blocks the secondary centrifuge washing water outlet pipe 23. Therefore, the inclination angle of the secondary centrifuge washing water outlet pipe 23 is 45° with the central axis of the secondary centrifuge 30, which can effectively avoid material blocking the pipeline, reduce the number of pipeline dredging times, and improve work efficiency.

[0031] When the first-stage centrifuge 27 needs to be flushed, the on-site personnel open the manual ball valve A2, the manual ball valve B4 and the manual ball valve C8, the remote personnel open the pneumatic ball valve A1, open the first-stage centrifuge tray 26, and finally start the liquid transfer pump A3 for thorough cleaning for 5 minutes, and the liquid and materials are left in the washing tank 17.

[0032] When flushing the secondary centrifuge 30 , the on-site personnel open the manual ball valve A2 , the manual ball valve B4 and the manual ball valve J32 , the remote personnel open the pneumatic ball valve A1 , and finally start the liquid transfer pump A3 , and perform a thorough cleaning for 10 minutes, leaving the liquid and materials in the washing tank 17 .

[0033] The washing tank 5 is connected to the washing tank 17 through the first-stage centrifuge washing water inlet pipe 7 and the first-stage centrifuge 27; the washing tank 5 is connected to the washing tank 17 through the second-stage centrifuge washing water inlet pipe 9, the second-stage centrifuge 30, and the second-stage centrifuge washing water outlet pipe 23; the washing tank 17 is connected to the washing tank 5 through the washing tank liquid outlet pipe 25, the second-stage centrifuge 30, and the second-stage centrifuge liquid removal pipe 6, so that the original water inside the system can be recycled.

[0034] Through on-site tests over the past two years, the addition of a wash tank 5, a pipe from the wash tank to the first-stage centrifuge, a pipe from the wash tank to the second-stage centrifuge, a flushing water pipe, a first-stage centrifuge tray 26, a second-stage centrifuge tray 29, a second-stage centrifuge wash water outlet pipe 23, a manual ball valve, a pneumatic ball valve and a liquid transfer pump have completely solved the liquid expansion problem that has plagued hydrometallurgy, the vibration problem of the first and second-stage centrifuges, and the problem of pipe clogging by materials with higher specific gravity, which has improved the equipment operation rate, reduced the labor intensity of personnel, and ensured safe and stable operation on site.

Claims

1. A system for efficiently recycling produced water, comprising a primary centrifuge (27), a secondary centrifuge (30), a primary centrifuge solution inlet pipe (11), a primary centrifuge deliquidation pipe (33), a primary centrifuge discharge pipe (16), a secondary centrifuge deliquidation pipe (6), a secondary centrifuge discharge pipe (28), a solution storage tank (14), a washing tank (17), a washing tank stirring paddle (15), a microwave drying device (24), and a washing tank discharge pipe (25), characterized in that: It also includes a pneumatic ball valve, a manual ball valve, a liquid transfer pump, a wash water tank (5), a first-stage centrifuge wash water inlet pipe (7), a second-stage centrifuge wash water inlet pipe (9), a flushing pipeline water pipe (22), a second-stage centrifuge wash water outlet pipe (23), a first-stage centrifuge tray (26) and a second-stage centrifuge tray (29); A manual ball valve E (12) is connected in series to the first-stage centrifuge solution inlet pipe (11); a manual ball valve F (13) is connected in series to the first-stage centrifuge deliquid pipe (33), and the first-stage centrifuge deliquid pipe (33) is connected in series to the solution storage tank (14); a manual ball valve B (4), a liquid transfer pump A (3), a manual ball valve A (2), a pneumatic ball valve A (1) and a manual ball valve C (8) are connected in series to the first-stage centrifuge wash water inlet pipe (7); the first-stage centrifuge (27) is connected to the first-stage centrifuge tray (26) and the first-stage centrifuge discharge pipe (16), and the first-stage centrifuge discharge pipe (16) is connected to the washing tank (17); A manual ball valve B (4), a liquid transfer pump A (3), a manual ball valve A (2), a pneumatic ball valve A (1) and a manual ball valve J (32) are connected in series to the secondary centrifuge washing water inlet pipe (9), and the secondary centrifuge washing water outlet pipe (23) leads to the washing tank (17); The lower side of the secondary centrifuge (30) is connected to the microwave drying device (24) via a secondary centrifuge discharge pipe (28); A first-stage centrifuge tray (26) is provided on the first-stage centrifuge (27), a second-stage centrifuge tray (29) is provided on the second-stage centrifuge (30), a second-stage centrifuge wash water outlet pipe (23) is provided below the second-stage centrifuge tray (29), and the second-stage centrifuge wash water outlet pipe (23) is connected to the washing tank (17); A manual ball valve G (18), a liquid transfer pump B (19), a pneumatic ball valve B (20), a manual ball valve H (21), and a manual ball valve I (31) are connected in series to the liquid outlet pipe (25) of the washing tank; A flushing pipe (22) is connected in series to the washing tank outlet pipe (25); The washing tank (17) is connected to the washing tank (5) through the washing tank outlet pipe (25), the secondary centrifuge (30), and the secondary centrifuge deliquid pipe (6). A manual ball valve D (10) is provided on the secondary centrifuge deliquid pipe (6).

2. A system for efficiently recycling produced water according to claim 1, characterized in that: The first-stage centrifuge tray (26) and the second-stage centrifuge tray (29) are retractable.

3. A system for efficiently recycling produced water according to claim 1, characterized in that: The inclination angle of the secondary centrifuge wash water outlet pipe (23) is 45° with respect to the central axis of the secondary centrifuge (30).

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