An integrated device for pre-treatment of mercury-containing wastewater from incinerators before mercury removal

Abstract

The utility model relates to the technical field of chemical production, and discloses an integrated device for pre-treatment of mercury-containing wastewater in an incinerator before mercury removal, including an integrated device, wherein the integrated device includes a membrane pool, a water inlet is provided on the right side of the bottom of the membrane pool, and a sewage outlet is fixedly provided on the right side of the water inlet. The utility model pushes a control rod to make a slider 1 lift a driving rod upward, so that the elastic potential energy of a spring 2 pulls the slider 2 inward, further allowing the fixed head to be stored inside the extension rod, completing the disassembly of the ultrafiltration module frame, and then pushing the fixed head to be installed inside the guide rail 1 through the elastic potential energy of the spring 1 to complete the fixation. Compared with the traditional device, the device completes the disassembly of the ultrafiltration module frame by pushing the control rod, effectively improving the efficiency of maintenance and cleaning of the ultrafiltration membrane assembly, and there is no need to touch the mercury-containing wastewater during disassembly and installation, ensuring the health of the staff.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, and more specifically to an integrated device for pre-treating mercury-containing wastewater in an incinerator before removing mercury. Background Art

[0002] The incinerator is an application of high-temperature heat treatment technology. It uses a certain amount of excess air to carry out an oxidation combustion reaction with the treated organic waste in the furnace. It is mainly used to treat waste containing organic components, especially those with high calorific value, such as waste metallurgical slag, chemical waste slag, etc.

[0003] At present, during the incineration process of the incinerator, the flue gas generated by the incinerator will contain a large amount of harmful substances. In order to meet the emission standards, the flue gas usually needs to be desulfurized. However, under the long-term operation of the incinerator, the flue gas will contain a large amount of mercury vapor, resulting in mercury in the desulfurized wastewater. Therefore, it is necessary to remove the mercury from the mercury-containing wastewater.

[0004] At present, when pre-treating mercury-containing wastewater, the wastewater needs to be precipitated, filtered and adsorbed with activated carbon before being sent to an ultrafiltration membrane pool to filter out the mercury-containing suspended matter in the wastewater. However, in actual use, due to the excellent filtration performance of the ultrafiltration membrane, it is also susceptible to contamination and wear during use and requires daily maintenance. The current integrated equipment for pre-treating mercury-containing wastewater is difficult to quickly disassemble and install when maintaining the ultrafiltration membrane assembly, and the residual mercury in the ultrafiltration membrane assembly may also cause harm to the staff, so it needs to be improved and optimized. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an integrated device for pre-treatment of mercury-containing wastewater in an incinerator before mercury removal, which has the advantage of being easy for daily maintenance.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated device for pre-treatment of mercury-containing wastewater from an incinerator before mercury removal, comprising an integrated device, the integrated device comprising a membrane pool, a water inlet is arranged on the right side of the bottom of the membrane pool, and a sewage outlet is fixedly arranged on the right side of the water inlet;

[0007] A guide rail 1 is fixedly installed on both the front and rear sides of the membrane pool, an ultrafiltration module frame is slidably installed between two groups of the guide rails 1, an ultrafiltration module frame is provided with an ultrafiltration membrane assembly, an extension rod is fixedly installed on both the front and rear sides of the ultrafiltration module frame, a slider 1 is slidably installed on the upper part of the extension rod, the slider 1 slides forward and backward along the extension rod, a driving rod is slidably installed inside the extension rod, the driving rod slides up and down along the extension rod, the top of the driving rod and the slider 1 are in conflict with each other, and the top of the driving rod and the inner wall of the extension rod are elastically connected by a spring 1;

[0008] A slider 2 is movably installed at the lower part of the extension rod, and the slider 2 slides back and forth along the extension rod. The bottom of the driving rod and the slider 2 contact each other. A fixing head is fixedly installed at one end of the slider 2, and the fixing head penetrates into the interior of the guide rail 1. One end of the slider 2 and the inner wall of the extension rod are elastically connected by a spring 2.

[0009] As a preferred technical solution of the utility model, connection blocks are fixedly installed on both the left and right sides of the ultrafiltration membrane assembly;

[0010] Guide rails 2 are fixedly installed on both sides of the left and right sides of the membrane pool, a screw is rotatably installed inside the guide rail 2, a moving block 1 is movably installed on the front side of the guide rail 2, the moving block 1 is threadedly sleeved with the screw, a moving block 2 is movably installed on the rear side of the guide rail 2, the moving block 2 is threadedly sleeved with the screw, a motor is fixedly installed on the outer wall of the rear side of the guide rail 2, and the output shaft of the motor is fixedly connected to the screw.

[0011] As a preferred technical solution of the utility model, a movable groove is provided on the top of the extension rod, a control rod is movably installed inside the movable groove, and the control rod is fixedly connected to one end of the slider.

[0012] As a preferred technical solution of the utility model, one end of the slider is a slope, the top of the driving rod is a slope, and the slopes of the slider and the top of the driving rod are opened at the same angle, and the slopes of the slider and the top of the driving rod conflict with each other.

[0013] As a preferred technical solution of the utility model, the bottom of the driving rod is an inclined surface, the top of the slider 2 is an inclined surface, and the inclined surfaces of the slider 2 and the bottom of the driving rod have the same opening angle, and the inclined surfaces of the slider 2 and the bottom of the driving rod conflict with each other.

[0014] As a preferred technical solution of the utility model, a notch for movably installing the fixed head is opened inside the guide rail 1.

[0015] As an optimal technical solution of the utility model, a connecting rod 1 is rotatably installed on the top of the moving block 1, and one end of the connecting rod 1 is rotatably connected to the connecting block. A connecting rod 2 is rotatably installed on the top of the moving block 2, and one end of the connecting rod 2 is rotatably connected to the connecting block.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The utility model pushes the control rod so that the slider one lifts the driving rod upward, and the bottom of the driving rod and the slider two lose the resistance relationship, so that the elastic potential energy of the spring two pulls the slider two inward, and further stores the fixed head into the interior of the extension rod, thereby completing the disassembly of the ultrafiltration module frame, and then pushes the fixed head to be installed into the interior of the guide rail one through the elastic potential energy of the spring one to complete the fixation. Compared with the traditional device, the device completes the disassembly of the ultrafiltration module frame by pushing the control rod, and then completes the installation of the ultrafiltration module frame through the elastic potential energy of the spring one, which effectively improves the efficiency of maintenance and cleaning of the ultrafiltration membrane assembly, and there is no need to touch the mercury-containing wastewater during disassembly and installation, thereby ensuring the health of the staff.

[0018] 2. The utility model rotates the screw rod through the operation of the motor, and the screw rod drives the moving block 1 and the moving block 2 threadedly connected thereto to slide inward, so that the connecting rod 1 and the moving block 2 lift the ultrafiltration module frame upward. Compared with the traditional device, after the disassembly is completed, the ultrafiltration module frame can be lifted or lowered by controlling the motor, thereby avoiding direct contact with the mercury-containing wastewater, reducing the carrying burden of the staff, and improving the efficiency of maintenance and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the screw rod structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the ultrafiltration membrane framework structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the extension rod of the utility model;

[0023] Figure 5 This is a structural schematic diagram of a slider of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the fixed head of the utility model.

[0025] In the figure: 1. integrated device; 2. membrane pool; 3. water inlet; 4. sewage outlet; 5. guide rail 1; 6. ultrafiltration module frame; 7. ultrafiltration membrane assembly; 8. extension rod; 9. slider 1; 10. movable groove; 11. control rod; 12. driving rod; 13. spring 1; 14. slider 2; 15. fixed head; 16. spring 2; 17. connecting block; 18. guide rail 2; 19. motor; 20. screw; 21. moving block 1; 22. connecting rod 1; 23. moving block 2; 24. connecting rod 2. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 6 As shown, the utility model provides an integrated device for pre-treatment of mercury-containing wastewater from an incinerator before mercury removal, comprising an integrated device 1, the integrated device 1 comprising a membrane pool 2, a water inlet 3 is arranged on the right side of the bottom of the membrane pool 2, and a sewage outlet 4 is fixedly arranged on the right side of the water inlet 3;

[0028] Guide rails 5 are fixedly installed on both the front and rear sides of the membrane pool 2, an ultrafiltration mold frame 6 is slidably installed between the two sets of guide rails 5, an ultrafiltration membrane assembly 7 is arranged inside the ultrafiltration mold frame 6, an extension rod 8 is fixedly installed on both the front and rear sides of the ultrafiltration mold frame 6, a slider 9 is slidably installed on the upper part of the extension rod 8, the slider 9 slides forward and backward along the extension rod 8, a driving rod 12 is slidably installed inside the extension rod 8, the driving rod 12 slides up and down along the extension rod 8, the top of the driving rod 12 and the slider 9 are in conflict with each other, and the top of the driving rod 12 and the inner wall of the extension rod 8 are elastically connected by a spring 13;

[0029] A slider 14 is movably installed at the lower part of the extension rod 8. The slider 14 slides back and forth along the extension rod 8. The bottom of the driving rod 12 and the slider 14 contact each other. A fixing head 15 is fixedly installed at one end of the slider 14. The fixing head 15 penetrates into the interior of the guide rail 5. One end of the slider 14 and the inner wall of the extension rod 8 are elastically connected by a spring 16.

[0030] When it is necessary to pre-treat the mercury-containing wastewater, the staff will discharge the mercury-containing wastewater into the membrane pool 2. At this time, various fine mercury-containing suspended solids in the wastewater will be filtered by the ultrafiltration membrane assembly 7 in the membrane pool 2. Then the staff will add sodium hypochlorite and citric acid into the membrane pool 2. The citric acid mainly keeps the wastewater acidic, and the sodium hypochlorite oxidizes the mercury into a high-valent state under acidic conditions so that the subsequent resin adsorption link can adsorb mercury ions. After a long period of filtration operation, the filtration performance of the ultrafiltration membrane assembly 7 is reduced, and the ultrafiltration membrane assembly 7 needs to be maintained. At this time, the staff pushes the control rod 11, and the control rod 11 drives the slider 19 to slide inside the extension rod 8, and the inclined surface of the slider 19 lifts the drive rod 12 upward. At this time, the spring 13 is squeezed, and the bottom of the drive rod 12 and the slider 2 14 lose the resistance relationship, so that the elastic potential energy of the spring 2 16 Pull the slider 2 14 inward to further retract the fixed head 15 into the interior of the extension rod 8, completing the disassembly of the ultrafiltration module frame 6. At this time, the staff can start the motor 19 to rotate the screw rod 20. The screw rod 20 drives the moving block 1 21 and the moving block 23 threadedly connected thereto to slide inward, thereby causing the connecting rod 1 22 and the moving block 23 to lift the connecting block 17 upward. At this time, the ultrafiltration module frame 6 slides upward along the guide rail 1 5, so that the ultrafiltration membrane assembly 7 is lifted to a height that is convenient for maintenance. When the ultrafiltration module frame 6 needs to be reinstalled, the staff starts the motor 19 to reset the ultrafiltration module frame 6. After the ultrafiltration module frame 6 is completely reset, the elastic potential energy of the spring 13 squeezes the drive rod 12 downward, so that the bottom of the drive rod 12 pushes the slider 2 14 outward, further installing the fixed head 15 into the interior of the guide rail 1 5 to complete the fixation.

[0031] By pushing the control rod 11, the slider 9 lifts the driving rod 12 upward, and the resistance relationship between the bottom of the driving rod 12 and the slider 2 14 is lost, so that the elastic potential energy of the spring 2 16 pulls the slider 2 14 inward, and further stores the fixed head 15 into the extension rod 8, completing the disassembly of the ultrafiltration module frame 6, and then pushes the fixed head 15 into the guide rail 5 through the elastic potential energy of the spring 13 to complete the fixation. Compared with the traditional device, the device completes the disassembly of the ultrafiltration module frame 6 by pushing the control rod 11, and then completes the installation of the ultrafiltration module frame 6 through the elastic potential energy of the spring 13, which effectively improves the efficiency of maintenance and cleaning of the ultrafiltration membrane assembly 7, and there is no need to touch the mercury-containing wastewater during disassembly and installation, thereby ensuring the health of the staff.

[0032] Wherein, connection blocks 17 are fixedly installed on both the left and right sides of the ultrafiltration membrane assembly 7;

[0033] Guide rail 2 18 is fixedly installed on both sides of the left and right sides of the membrane pool 2, and a screw rod 20 is rotatably installed inside the guide rail 2 18. A moving block 21 is movably installed on the front side of the guide rail 2 18, and the moving block 21 and the screw rod 20 are threadedly sleeved. A moving block 23 is movably installed on the rear side of the guide rail 18, and the moving block 23 and the screw rod 20 are threadedly sleeved. A motor 19 is fixedly installed on the outer wall of the rear side of the guide rail 2 18, and the output shaft of the motor 19 and the screw rod 20 are fixedly connected.

[0034] The staff can start the motor 19 to rotate the screw rod 20, and the screw rod 20 drives the moving block 1 21 and the moving block 2 23 threadedly connected thereto to slide inward, so that the connecting rod 1 22 and the moving block 2 23 lift the connecting block 17 upward. At this time, the ultrafiltration mold frame 6 slides upward along the guide rail 1 5, so that the ultrafiltration membrane assembly 7 is lifted to a height convenient for maintenance.

[0035] Through the operation of the motor 19, the screw rod 20 rotates, and the screw rod 20 drives the moving block 1 21 and the moving block 23 threadedly connected thereto to slide inward, so that the connecting rod 1 22 and the moving block 2 23 lift the ultrafiltration module frame 6 upward. Compared with the traditional device, after the disassembly is completed, the ultrafiltration module frame 6 can be lifted or lowered by controlling the motor 19, thereby ensuring that direct contact with mercury-containing wastewater is avoided, reducing the carrying burden of the staff, and improving the efficiency of maintenance and cleaning.

[0036] Among them, a movable groove 10 is opened at the top of the extension rod 8, and a control rod 11 is movably installed inside the movable groove 10. The control rod 11 is fixedly connected to one end of the slider 9.

[0037] The staff pushes the control rod 11, and the control rod 11 drives the slider 9 to slide inside the extension rod 8, which is responsible for controlling the movement of the slider 9.

[0038] Among them, one end of the slider 9 is an inclined surface, the top of the driving rod 12 is an inclined surface, and the inclined surfaces of the slider 9 and the top of the driving rod 12 are opened at the same angle, and the inclined surfaces of the slider 9 and the top of the driving rod 12 conflict with each other.

[0039] The bottom of the driving rod 12 is an inclined surface, the top of the second slider 14 is an inclined surface, and the inclined surfaces of the second slider 14 and the bottom of the driving rod 12 are opened at the same angle, and the inclined surfaces of the second slider 14 and the bottom of the driving rod 12 conflict with each other.

[0040] Among them, a slot is opened inside the guide rail 1 5 for the fixed head 15 to be movably installed.

[0041] The notch inside the guide rail 5 is responsible for the installation and fixation of the ultrafiltration module frame 6.

[0042] Among them, a connecting rod 22 is rotatably installed on the top of the moving block 1 21, and one end of the connecting rod 22 is rotatably connected to the connecting block 17. A connecting rod 24 is rotatably installed on the top of the moving block 2 23, and one end of the connecting rod 24 is rotatably connected to the connecting block 17.

[0043] The connecting rod 1 22 and the moving block 2 23 lift the connecting block 17 upwards, and the ultrafiltration module frame 6 slides upwards along the guide rail 1 5, so that the ultrafiltration membrane assembly 7 is lifted to a height convenient for maintenance.

[0044] The working principle and use process of this utility model:

[0045] When it is necessary to pre-treat the mercury-containing wastewater, the staff will discharge the mercury-containing wastewater into the membrane pool 2. At this time, various fine mercury-containing suspended solids in the wastewater will be filtered by the ultrafiltration membrane assembly 7 in the membrane pool 2. Then the staff will add sodium hypochlorite and citric acid into the membrane pool 2. The citric acid mainly keeps the wastewater acidic, and the sodium hypochlorite oxidizes the mercury into a high-valent state under acidic conditions so that the subsequent resin adsorption link can adsorb mercury ions. After a long period of filtration, the filtration performance of the ultrafiltration membrane assembly 7 is reduced, and the ultrafiltration membrane assembly 7 needs to be maintained. At this time, the staff pushes the control rod 11, and the control rod 11 drives the slider 9 to slide inside the extension rod 8, and the inclined surface of the slider 9 lifts the drive rod 12 upward. At this time, the spring 13 is squeezed, and the bottom of the drive rod 12 and the slider 2 14 lose the resistance relationship, so that the elastic potential of the spring 2 16 The slider 2 14 can be pulled inward, so that the fixed head 15 can be further stored in the interior of the extension rod 8 to complete the disassembly of the ultrafiltration mold frame 6. At this time, the staff can start the motor 19 to rotate the screw rod 20. The screw rod 20 drives the moving block 1 21 and the moving block 23 threadedly connected thereto to slide inward, so that the connecting rod 1 22 and the moving block 23 lift the connecting block 17 upward. At this time, the ultrafiltration mold frame 6 slides upward along the guide rail 1 5, so that the ultrafiltration membrane assembly 7 is lifted to a height convenient for maintenance. When the ultrafiltration mold frame 6 needs to be reinstalled, the staff starts the motor 19 to reset the ultrafiltration mold frame 6. After the ultrafiltration mold frame 6 is completely reset, the elastic potential energy of the spring 13 squeezes the driving rod 12 downward, so that the bottom of the driving rod 12 pushes the slider 2 14 outward, further installing the fixed head 15 into the interior of the guide rail 1 5 to complete the fixation. 。

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated device for pre-treatment of mercury-containing wastewater from an incinerator before mercury removal, comprising an integrated device (1), characterized in that: The integrated device (1) comprises a membrane pool (2), a water inlet (3) is arranged on the right side of the bottom of the membrane pool (2), and a sewage outlet (4) is fixedly arranged on the right side of the water inlet (3); Guide rails (5) are fixedly installed on both the front and rear sides of the membrane pool (2), an ultrafiltration module frame (6) is slidably installed between two groups of guide rails (5), an ultrafiltration module assembly (7) is arranged inside the ultrafiltration module frame (6), an extension rod (8) is fixedly installed on both the front and rear sides of the ultrafiltration module frame (6), a slider (9) is slidably installed on the upper part of the extension rod (8), the slider (9) slides forward and backward along the extension rod (8), a driving rod (12) is slidably installed inside the extension rod (8), the driving rod (12) slides up and down along the extension rod (8), the top of the driving rod (12) and the slider (9) are in contact with each other, and the top of the driving rod (12) and the inner wall of the extension rod (8) are elastically connected by a spring (13); A second slider (14) is movably installed at the lower part of the extension rod (8), and the second slider (14) slides forward and backward along the extension rod (8). The bottom of the driving rod (12) and the second slider (14) contact each other. A fixing head (15) is fixedly installed at one end of the second slider (14), and the fixing head (15) penetrates into the interior of the first guide rail (5). One end of the second slider (14) and the inner wall of the extension rod (8) are elastically connected via a second spring (16).

2. The integrated device for pre-treatment of mercury-containing wastewater from incinerators according to claim 1, characterized in that: Connecting blocks (17) are fixedly mounted on both the left and right sides of the ultrafiltration membrane assembly (7); Guide rail 2 (18) is fixedly installed on both left and right sides of the membrane pool (2), a screw rod (20) is rotatably installed inside the guide rail 2 (18), a moving block 1 (21) is movably installed on the front side of the guide rail 2 (18), the moving block 1 (21) and the screw rod (20) are threadedly sleeved, a moving block 2 (23) is movably installed on the rear side of the guide rail 2 (18), the moving block 2 (23) and the screw rod (20) are threadedly sleeved, a motor (19) is fixedly installed on the rear outer wall of the guide rail 2 (18), and the output shaft of the motor (19) and the screw rod (20) are fixedly connected.

3. The integrated device for pre-treatment of mercury-containing wastewater from incinerators according to claim 1 is characterized in that: A movable groove (10) is provided at the top of the extension rod (8), a control rod (11) is movably installed inside the movable groove (10), and the control rod (11) is fixedly connected to one end of the sliding block (9).

4. The integrated device for pre-treatment of mercury-containing wastewater from incinerators according to claim 1 is characterized in that: One end of the slider (9) is an inclined surface, the top of the driving rod (12) is an inclined surface, and the inclined surfaces of the slider (9) and the top of the driving rod (12) are opened at the same angle, and the inclined surfaces of the slider (9) and the top of the driving rod (12) are in conflict with each other.

5. The integrated device for pre-treatment of mercury-containing wastewater from incinerators according to claim 1, characterized in that: The bottom of the driving rod (12) is an inclined surface, the top of the second slider (14) is an inclined surface, and the inclined surfaces of the second slider (14) and the bottom of the driving rod (12) are opened at the same angle, and the inclined surfaces of the second slider (14) and the bottom of the driving rod (12) are in conflict with each other.

6. The integrated device for pre-treatment of mercury-containing wastewater from incinerators according to claim 1, characterized in that: The guide rail 1 (5) is provided with a slot inside for movably installing the fixed head (15).

7. The integrated device for pre-treatment of mercury-containing wastewater from incinerators according to claim 2, characterized in that: A connecting rod 1 (22) is rotatably mounted on the top of the moving block 1 (21), and one end of the connecting rod 1 (22) is rotatably connected to the connecting block (17). A connecting rod 2 (24) is rotatably mounted on the top of the moving block 2 (23), and one end of the connecting rod 2 (24) is rotatably connected to the connecting block (17).

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