Coal coking wastewater recycling treatment device

Abstract

The utility model relates to a kind of coal coking wastewater circulating treatment devices, including intermediate tank, first water pump, second water pump and cross-shaped support seat, the lower side of intermediate tank is connected with the water outlet pipeline with water outlet valve having, the upper side of one side is connected with the water return pipeline with water return valve, first water pump water inlet is communicated with water outlet pipeline, water outlet is communicated with the water inlet channel of being established in the center of support seat bottom, the water inlet of second water pump is communicated with the water return channel of being established in the center of support seat top, water outlet is communicated with water return pipeline, the support seat in the upper portion of water inlet channel both sides is equipped with water inlet branch, the left and right sides of the tail end of two water inlet branches are communicated with water inlet branch pipe, the support seat in the lower portion of water return channel both sides is equipped with water return branch, the left and right sides of the tail end of two water return branches are communicated with water return branch pipe, control valve is equipped on water inlet branch pipe and water return branch pipe. The utility model can realize the cyclic adsorption depth treatment of coal coking wastewater, and the treatment effect is better.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to a coal coking wastewater recycling treatment device. Background Technology

[0002] Currently, the treatment methods for coal coking wastewater mainly include three stages: pretreatment, biochemical treatment, and advanced treatment. Among them, the main purpose of advanced treatment is to further remove recalcitrant organic matter and color from the wastewater. Commonly used advanced treatment methods include chemical oxidation, adsorption filtration, and color biofilm methods. Adsorption filtration is a method that uses activated carbon or other adsorbent materials to remove organic matter and color. However, in actual treatment, the wastewater is generally transported to the subsequent process after passing through the adsorbent material only once, resulting in poor advanced treatment effect, which needs to be improved. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a coal coking wastewater recycling treatment device, which can realize the deep treatment of coal coking wastewater by recycling and adsorption, so as to solve the above problems.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a coal coking wastewater recycling treatment device, comprising an intermediate tank, a first water pump, a second water pump, and a support base with a cross-shaped cross-section. The top of the intermediate tank is connected to a water injection pipe with a water injection valve, the bottom is connected to a drain pipe with a drain valve, the lower part of one side is connected to a water outlet pipe with an outlet valve, and the upper part of one side is connected to a water return pipe with a return valve. The inlet of the first water pump is connected to the water outlet pipe, and the water outlet is connected to an inlet channel located at the center of the bottom of the support base. The inlet of the second water pump is connected to a water return channel located at the center of the top of the support base, and the water outlet is connected to the water return pipe. The upper front and rear support bases are equipped with water inlet branches, and the left and right sides of the tail ends of the two water inlet branches are connected to water inlet branch pipes. The lower front and rear support bases of the return water channel are equipped with return water branches, and the left and right sides of the tail ends of the two return water branches are connected to return water branch pipes. The water inlet branch pipes and return water branch pipes are equipped with control valves. The front and rear ends of the left and right sides of the horizontal part of the support base can be detachably connected to movable treatment boxes. The water inlet branch pipes are detachably connected to the lower part of the treatment box on the same side, and the return water branch pipes are detachably connected to the upper part of the treatment box on the same side. The middle part of the treatment box is fixed with two vertically spaced support mesh plates, and activated carbon is filled between the two support mesh plates.

[0005] Preferably, the processing box is fixed on a base, and casters are installed at the four corners of the bottom of the base.

[0006] Preferably, an L-shaped positioning plate is fixedly provided on the side of the base near the horizontal portion of the support seat. A positioning groove is provided on the horizontal portion of the support seat corresponding to the vertical portion of the positioning plate. The vertical portion of the positioning plate is inserted into the corresponding positioning groove. A hydraulic cylinder is vertically fixed on the support seat above the positioning groove. The piston rod of the hydraulic cylinder faces downward and is fixedly connected to a limiting plate. The limiting plate abuts against the inner side of the corresponding positioning plate.

[0007] Preferably, the end of the water inlet branch pipe is fixedly connected to a first flexible hose, and the first flexible hose is connected to the lower part of the corresponding treatment tank through a first quick connector.

[0008] Preferably, the tail end of the return water branch pipe is fixedly connected to a second flexible hose, and the second flexible hose is connected to the upper part of the corresponding treatment box through a second quick connector.

[0009] The beneficial effects of this invention are as follows: When using activated carbon adsorption filtration for deep treatment of coal coking wastewater, the wastewater treated in the previous process can be first sent to the intermediate tank via the water injection pipe. After water injection, the water injection valve is closed, and the outlet valve and return valve are opened. The first and second water pumps are then run. Under the pumping of the first and second water pumps, the wastewater in the intermediate tank is sent to the lower part of the treatment tank through the outlet pipe, inlet channel, inlet branch channel, and inlet branch pipe, allowing the wastewater to flow from bottom to top. After flowing through the corresponding activated carbon area, the wastewater then flows back to the intermediate tank through the return branch pipe, return branch channel, return channel, and return pipe. In this way, the coal coking wastewater can pass through the activated carbon area multiple times, achieving deep treatment through cyclic adsorption, resulting in better deep treatment. After treatment, the outlet valve, return valve, first and second water pumps are closed, and the drain valve is opened. The treated wastewater is then discharged to the subsequent process through the drain pipe.

[0010] Furthermore, the four sets of treatment tanks allow for the selection of one set as a backup during actual operation, while the other three operate simultaneously. Specifically, during deep treatment, the control valves on the inlet and return branches corresponding to the backup treatment tank are closed, while the control valves on the inlet and return branches corresponding to the other three treatment tanks are open. This parallel operation of the three treatment tanks effectively ensures the overall deep treatment efficiency of the coal coking wastewater. When the activated carbon adsorption capacity of the working treatment tank decreases and needs replacement, the backup treatment tank can be activated first, and one of the three currently operating treatment tanks can be deactivated. The backup treatment tank can then be disassembled and replaced using the detachable connections between it and its corresponding inlet and return branches and support base. After replacement, the backup treatment tank can be activated again, and one of the remaining two currently operating treatment tanks can be deactivated again for further disassembly and replacement. This process can be repeated, maintaining a one-backup-three-use operating mode to ensure the adsorption capacity and quality of the coal coking wastewater, making it more practical. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a front view structural diagram of the support base with the processing box installed in this utility model;

[0013] Figure 3 This is a left-side structural schematic diagram of the support base of this utility model with the processing box installed;

[0014] Figure 4 This is a top view of the support base of the present invention, which is equipped with a processing box.

[0015] Figure 5 This is a top view of the support base of this utility model without the processing box installed. Figure 1 ;

[0016] Figure 6 This is a top view of the support base of this utility model without the processing box installed. Figure 2 ;

[0017] Figure 7 This is a schematic diagram of the main structure of the processing box of this utility model;

[0018] Figure 8 This is a schematic diagram of the left side of the processing box of this utility model;

[0019] Figure 9 This is a top view of the processing box of this utility model.

[0020] The diagram is labeled as follows: 1 is the intermediate tank, 2 is the first water pump, 3 is the second water pump, 4 is the support base, 5 is the water injection valve, 6 is the water injection pipeline, 7 is the drain valve, 8 is the drain pipeline, 9 is the outlet valve, 10 is the outlet pipeline, 11 is the return water valve, 12 is the return water pipeline, 13 is the inlet channel, 14 is the return water channel, 15 is the inlet branch channel, 16 is the inlet branch pipe, 17 is the return water branch channel, 18 is the return water branch pipe, 19 is the control valve, 20 is the treatment box, 21 is the support mesh plate, 22 is the activated carbon, 23 is the base, 24 is the caster, 25 is the positioning plate, 26 is the positioning groove, 27 is the hydraulic cylinder, 28 is the limit plate, 29 is the first hose, 30 is the first quick connector, 31 is the second hose, and 32 is the second quick connector. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] like Figures 1 to 9As shown, a coal coking wastewater recycling treatment device includes an intermediate tank 1, a first water pump 2, a second water pump 3, and a support base 4 with a cross-shaped cross section. The top of the intermediate tank 1 is connected to a water injection pipe 6 with a water injection valve 5, the bottom is connected to a drain pipe 8 with a drain valve 7, the lower part of one side is connected to a water outlet pipe 10 with a water outlet valve 9, and the upper part of one side is connected to a water return pipe 12 with a water return valve 11. The inlet of the first water pump 2 is connected to the water outlet pipe 10, and the outlet is connected to a water inlet channel 13 located at the center of the bottom of the support base 4. The inlet of the second water pump 3 is connected to a water return channel 14 located at the center of the top of the support base 4, and the outlet is connected to the water return pipe 12. Water inlet branches 15 are provided in the support seats 4 on both the front and rear sides of the upper part of the water inlet channel 13. Water inlet branch pipes 16 are connected to the left and right sides of the tail ends of the two water inlet branches 15. Water return branches 17 are provided in the support seats 4 on both the front and rear sides of the lower part of the water return channel 14. Water return branch pipes 18 are connected to the left and right sides of the tail ends of the two water return branches 17. Control valves 19 are provided on the water inlet branch pipes 16 and water return branch pipes 18. Movable treatment boxes 20 are detachably connected to the front and rear ends of the left and right sides of the horizontal part of the support seat 4. The water inlet branch pipe 16 is detachably connected to the lower part of the treatment box 20 on the same side, and the water return branch pipe 18 is detachably connected to the upper part of the treatment box 20 on the same side. Two support mesh plates 21 with vertical spacing are fixed in the middle of the treatment box 20, and activated carbon 22 is filled between the two support mesh plates 21.

[0023] When using activated carbon adsorption filtration for advanced treatment of coal coking wastewater, the wastewater treated in the previous process can be first sent to intermediate tank 1 via water injection pipe 6. After water injection is completed, water injection valve 5 is closed, and water outlet valve 9 and water return valve 11 are opened. The first water pump 2 and the second water pump 3 are then operated. Under the pumping of the first water pump 2 and the second water pump 3, the wastewater in intermediate tank 1 is sent to the lower part of treatment tank 20 via water outlet pipe 10, water inlet channel 13, water inlet branch channel 15, and water inlet branch pipe 16. The wastewater flows from bottom to top, passing through the corresponding activated carbon 22 area, and then returns to intermediate tank 1 via water return branch pipe 18, water return branch channel 17, water return channel 14, and water return pipe 12. In this way, the coal coking wastewater can pass through the activated carbon 22 area multiple times, achieving cyclic adsorption and advanced treatment of the coal coking wastewater, resulting in better advanced treatment effect. After treatment, close the outlet valve 9, return valve 11, first water pump 2 and second water pump 3, and then open the drain valve 7. The treated wastewater can be discharged to the subsequent process through the drain pipe 8.

[0024] Furthermore, the four sets of treatment tanks 20 allow for the selection of one set as a backup during actual operation, while the other three sets operate simultaneously. Specifically, during deep treatment, the control valves 19 on the inlet branch pipe 16 and return branch pipe 18 corresponding to the backup treatment tank 20 are closed, while the control valves 19 on the inlet branch pipe 16 and return branch pipe 18 corresponding to the other three treatment tanks 20 are open. This allows the three sets of treatment tanks 20 to operate in parallel, effectively ensuring the overall deep treatment efficiency of coal coking wastewater. When the activated carbon adsorption capacity of the operating treatment tank 20 decreases and needs replacement, the backup treatment tank 20 can be activated first, and one of the three operating treatment tanks 20 can be deactivated. The backup treatment tank 20 can then be disassembled and replaced using the detachable connection between it and its corresponding inlet branch pipe 16, return branch pipe 18, and support base 4. After replacement, the backup treatment tank 20 can be activated again, and one of the remaining two operating treatment tanks 20 can be deactivated again for further disassembly and replacement. Similarly, each treatment box 20 can be disassembled and replaced while maintaining a one-for-three working mode, thereby ensuring the adsorption capacity and quality of coal coking wastewater, making it more practical.

[0025] In this embodiment, the processing box 20 is fixed on a base 23. Casters 24 are installed at the four corners of the bottom of the base 23 so that the old and new processing boxes can be quickly moved in and out of the corresponding workstations when disassembling and replacing the processing box 20, thereby reducing the difficulty of disassembling and replacing the processing box 20, improving the replacement efficiency, and making it more practical.

[0026] In this embodiment, an L-shaped positioning plate 25 is fixedly provided on the side of the base 23 near the horizontal portion of the support 4. A positioning groove 26 is provided on the horizontal portion of the support 4 corresponding to the vertical portion of the positioning plate 25. The vertical portion of the positioning plate 25 is inserted into the corresponding positioning groove 26. A hydraulic cylinder 27 is vertically fixed on the support 4 above the positioning groove 26. The piston rod of the hydraulic cylinder 27 faces downward and is fixedly connected to a limit plate 28. The limit plate 28 abuts against the inner side of the corresponding positioning plate 25. When disassembling and replacing the treatment box, after disconnecting the connection between the treatment box 20 and the corresponding inlet branch pipe 16 and return branch pipe 18, the hydraulic cylinder 27 is operated to retract its piston rod, thereby moving the limit plate 28 upward and resetting it, thus releasing the limit on the positioning plate 25. Then, the treatment box is moved away from the support 4 by the caster 14, so that the positioning plate 25 exits from the corresponding positioning groove 26, thus completing the disassembly of the treatment box 20. Finally, the old treatment box 20 is moved out of the workstation by the caster 24. Next, the new treatment box 20 is quickly moved into the workstation, and the corresponding positioning plate 25 is aligned with the corresponding positioning slot 26 and inserted into place, thus completing the positioning and installation of the new treatment box 20. Then, the hydraulic cylinder 27 is operated again, extending its piston rod and moving the limiting plate 28 downwards until it abuts against the inner side of the positioning plate 25, thus fixing the positioning plate 25 in place and completing the fixed installation of the new treatment box 20. Then, the connection between the treatment box 20 and the corresponding inlet branch pipe 16 and return branch pipe 18 is completed, and it can be put into operation according to the actual situation. This allows for convenient disassembly and replacement of the treatment box 20, making it more practical.

[0027] In this embodiment, the tail end of the water inlet branch pipe 16 is fixedly connected to a first flexible hose 29. The first flexible hose 29 is connected to the lower part of the corresponding treatment box 20 through a first quick connector 30, thereby realizing quick connection and disconnection between the treatment box 20 and the water inlet branch pipe 16, and facilitating the disassembly and replacement of the treatment box 20.

[0028] In this embodiment, a second flexible hose 31 is fixedly connected to the tail end of the return water branch pipe 18. The second flexible hose 31 is connected to the upper part of the corresponding treatment tank 20 through a second quick connector 32, thereby realizing quick connection and disconnection between the treatment tank 20 and the return water branch pipe 18, facilitating the disassembly and replacement of the treatment tank 20. Both the first and second quick connectors can be based on existing technology, generally consisting of a male and a female connector. In use, simply pre-fit the male or female connector onto the corresponding inlet or return water branch pipe, and then pre-fit the corresponding female or male connector onto the upper and lower parts of the treatment tank for use.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coal coking wastewater recycling treatment device, characterized in that, The system includes an intermediate tank, a first water pump, a second water pump, and a support base with a cross-shaped cross-section. The top of the intermediate tank is connected to a water injection pipe with a water injection valve, the bottom is connected to a drain pipe with a drain valve, the lower side is connected to a water outlet pipe with a water outlet valve, and the upper side is connected to a water return pipe with a water return valve. The inlet of the first water pump is connected to the water outlet pipe, and the water outlet is connected to a water inlet channel located at the center of the bottom of the support base. The inlet of the second water pump is connected to a water return channel located at the center of the top of the support base, and the water outlet is connected to a water return pipe. Water inlets are located in the support base on both the front and rear sides above the water inlet channel. The branch channel has inlet branch pipes connected to the left and right sides of the two inlet branch channels. The return water channel has return water branch channels in the support seats on the front and rear sides of the lower part. The return water branch channels have return water branch pipes connected to the left and right sides of the two return water branch channels. The inlet branch pipes and return water branch pipes are equipped with control valves. The left and right sides of the horizontal part of the support seat can be detachably connected to the front and rear ends of the support seat. The inlet branch pipes are detachably connected to the lower part of the treatment box on the same side, and the return water branch pipes are detachably connected to the upper part of the treatment box on the same side. The middle part of the treatment box is fixed with two support mesh plates that are spaced apart vertically. Activated carbon is filled between the two support mesh plates.

2. The coal coking wastewater recycling treatment device according to claim 1, characterized in that, The processing box is fixed on a base, and casters are installed at the four corners of the bottom of the base.

3. The coal coking wastewater recycling treatment device according to claim 2, characterized in that, An L-shaped positioning plate is fixed on one side of the base near the horizontal portion of the support seat. A positioning groove is opened on the horizontal portion of the support seat corresponding to the vertical portion of the positioning plate. The vertical portion of the positioning plate is inserted into the corresponding positioning groove. A hydraulic cylinder is vertically fixed on the support seat above the positioning groove. The piston rod of the hydraulic cylinder faces downward and is fixedly connected to a limiting plate. The limiting plate abuts against the inner side of the corresponding positioning plate.

4. The coal coking wastewater recycling treatment device according to claim 1, characterized in that, The end of the water inlet branch pipe is fixedly connected to a first flexible hose, which is connected to the lower part of the corresponding treatment tank through a first quick connector.

5. The coal coking wastewater recycling treatment device according to claim 1, characterized in that, The end of the return water branch pipe is fixedly connected to a second flexible hose, which is connected to the upper part of the corresponding treatment box through a second quick connector.

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