Desulfurization wastewater treatment device for thermal power generation

Abstract

The utility model relates to a desulfurization wastewater treatment device for thermal power generation, which comprises a filter box body, a filter assembly for preliminarily filtering desulfurization wastewater is mounted in the filter box body, the other side of the filter box body is communicated with a water pumping assembly for pumping wastewater, one end of the water pumping assembly is communicated with a purification assembly, and the other end of the water pumping assembly is communicated with a water storage tank. And a stirring assembly is fixedly mounted at the bottom of the purifier. The desulfurization wastewater treatment device has the effects of effectively intercepting suspended solid particles in desulfurization wastewater and improving the filtering efficiency.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization wastewater treatment technology, specifically a desulfurization wastewater treatment device for thermal power generation. Background Technology

[0002] Currently, over 85% of my country's thermal power plants use limestone-gypsum wet desulfurization technology. In this process, to maintain stable system operation and ensure the quality of gypsum products, it is necessary to control the Cl- concentration in the slurry to prevent it from becoming too high. Therefore, a portion of the slurry needs to be discharged, resulting in desulfurization wastewater. With the successive promulgation of regulations and policies such as the "Water Pollution Prevention and Control Action Plan" and the "Guidelines for Feasible Technologies for Pollution Prevention and Control in Thermal Power Plants," strict requirements have been put forward for the standard discharge of wastewater from thermal power plants. Standard discharge of desulfurization wastewater has become a key link for thermal power plants to achieve standard wastewater discharge, prompting thermal power plants to attach importance to the treatment of desulfurization wastewater.

[0003] In related technologies, a desulfurization device for wastewater treatment includes a desulfurization device body and a base plate. The desulfurization device body is installed on the top of the base plate. A primary filtration mechanism is installed on the desulfurization device body. A purification box is fixedly connected to the base plate. A filter plate is fixedly connected inside the purification box. A first motor is installed on the purification box. The output end of the first motor passes through the purification box and is fixedly connected to a first bevel gear. A fixed frame is installed on the purification box. A stirring frame is rotatably connected to the fixed frame. A second bevel gear is fixedly connected to the top of the stirring frame. A water pump is installed on the purification box. The water pump's pumping end is connected to the purification box. The output end of the water pump is connected to a spray pipe. The top of the spray pipe passes through the purification box and is connected to a spray head. A cleaning mechanism is installed on the purification box.

[0004] When the aforementioned desulfurization device performs primary filtration of wastewater for an extended period, the sediment in the wastewater can cause clogging of the filter elements inside the filter box, resulting in reduced efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a desulfurization wastewater treatment device for thermal power generation, so as to solve the problem mentioned in the background art that when the wastewater undergoes a long period of primary filtration, the sediment in the wastewater will cause the filter elements inside the filter box to become clogged, resulting in reduced efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a desulfurization wastewater treatment device for thermal power generation, comprising a filter box, an inlet pipe fixedly connected to one side of the filter box, a filter assembly for preliminary filtration of desulfurization wastewater installed inside the filter box, a pumping assembly for extracting wastewater connected to the other side of the filter box, a purification assembly connected to one end of the pumping assembly, and a stirring assembly fixedly installed at the bottom of the purification assembly.

[0007] Preferably, the pumping assembly includes a pump, the inlet of which is fixedly connected to an outlet pipe, one end of which extends into the interior of the filter housing, and the outlet of the pump is connected to a connecting pipe. The pump can quickly transport desulfurization wastewater to the treatment unit, which is faster than relying on gravity flow.

[0008] Preferably, the purification assembly includes a purification chamber, one end of the connecting pipe extends into the interior of the purification chamber, three support legs are equidistantly installed at the bottom of the purification chamber, a medicine compartment is fixedly installed on one side of the purification chamber, a bottle cap is threadedly connected to the mouth of the medicine compartment, an inlet pipe is fixedly connected to the top of the medicine compartment, a medicine pump is fixedly connected to one end of the inlet pipe, a spray pipe is fixedly connected to the outlet end of the medicine pump, a medicine nozzle is fixedly installed at one end of the spray pipe, and the bottom of the medicine pump is fixedly installed on the top of the outer wall of the purification chamber. The chemical solution can adjust the water quality indicators such as pH of the wastewater, creating a chemical environment conducive to pollutant removal, ensuring the stability of the treatment effect, and avoiding poor treatment effect due to water quality fluctuations.

[0009] Preferably, the stirring assembly includes a motor, which is fixedly installed at the center of the bottom of the purification tank. A shaft is fixedly installed at the output end of the motor, and a thread is provided at the top of the shaft. A connecting sleeve is fixedly installed at the top of the shaft through the thread, and a stirring blade is fixedly installed at the top of the connecting sleeve. The stirring enables the medicine to be quickly and evenly dispersed in the wastewater, ensuring that every part of the medicine and wastewater can fully contact and undergo a chemical reaction, thereby improving the treatment effect.

[0010] Preferably, the filter assembly includes a top cover, which is installed on the top of the filter box. A mounting bracket is fixedly installed on the bottom of the top cover. Four sliding grooves are provided on the inner walls of both sides of the mounting bracket. Filter elements are slidably installed between two corresponding sliding grooves. The filter assembly can effectively intercept suspended solid particles in desulfurization wastewater, such as gypsum particles and dust particles generated during the desulfurization process. Filtering out these impurities can reduce potential harm to the environment.

[0011] Preferably, each end of one side of the top cover is provided with an electric push rod, and each end of the electric push rod is fixedly installed with a connecting plate. One side of one of the connecting plates is installed on one side of the top cover, and the other side of the connecting plate is installed on the top of one side of the filter box. When the filter assembly is damaged during use, such as the filter screen is broken or the filter element is severely clogged and cannot be restored by cleaning, the detachable design allows maintenance personnel to quickly disassemble it for repair or replacement.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: the water pump can quickly transport desulfurization wastewater to the treatment unit, which is faster than relying on gravity flow. The filter component can effectively intercept suspended solid particles in the desulfurization wastewater, such as gypsum particles and dust particles generated during the desulfurization process. Filtering out these impurities can reduce potential environmental hazards. The electric actuator and mounting bracket allow maintenance personnel to quickly disassemble the filter component for repair or replacement. The purification component can adjust water quality indicators such as pH of the wastewater, creating a chemical environment conducive to pollutant removal, ensuring the stability of the treatment effect, and avoiding poor treatment results due to water quality fluctuations. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the desulfurization wastewater treatment device in the embodiments of this application;

[0014] Figure 2 This is a diagram of the filter assembly of the desulfurization wastewater treatment device in the embodiments of this application;

[0015] Figure 3 This is a diagram of the stirring assembly of the desulfurization wastewater treatment device in the embodiments of this application;

[0016] Figure 4 This is a cross-sectional view of the internal structure of the sulfur wastewater treatment device in the embodiments of this application.

[0017] Reference numerals: 1. Filter box; 2. Inlet pipe; 3. Outlet pipe; 4. Connecting pipe; 5. Water pump; 6. Purification box; 7. Support leg; 8. Medicine compartment; 9. Bottle cap; 10. Medicine inlet pipe; 11. Medicine pump; 12. Spray pipe; 13. Medicine nozzle; 14. Connecting plate; 15. Motor; 16. Shaft; 17. Connecting sleeve; 18. Stirring blade; 19. Top cover; 20. Mounting bracket; 21. Filter element; 22. Electric actuator. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Please see Figure 1-4 This utility model provides a desulfurization wastewater treatment device for thermal power generation, including a filter box 1. A water inlet pipe 2 is fixedly connected to one side of the filter box 1. A filter assembly for preliminary filtration of desulfurization wastewater is installed inside the filter box 1. A water pumping assembly for extracting wastewater is connected to the other side of the filter box 1. A purification assembly is connected to one end of the water pumping assembly. A stirring assembly is fixedly installed at the bottom of the purification assembly.

[0020] Furthermore, the water pumping assembly includes a water pump 5, with an outlet pipe 3 fixedly connected to the inlet end of the water pump 5. One end of the outlet pipe 3 extends into the interior of the filter box 1, and the outlet end of the water pump 5 is connected to a connecting pipe 4. Wastewater is drawn by the water pump 5 and enters the interior of the filter box 1, is drawn out through the outlet pipe 3, and is sent into the interior of the purification box 6 through the connecting pipe 4.

[0021] Furthermore, the purification assembly includes a purification box 6, with one end of the connecting pipe 4 extending into the interior of the purification box 6. Three support legs 7 are equidistantly installed at the bottom of the purification box 6. A medicine container 8 is fixedly installed on one side of the purification box 6. A bottle cap 9 is threadedly connected to the bottle opening of the medicine container 8. A medicine inlet pipe 10 is fixedly connected to the top of the medicine container 8. A medicine pump 11 is fixedly connected to one end of the medicine inlet pipe 10. A spray pipe 12 is fixedly connected to the outlet end of the medicine pump 11. A medicine nozzle 13 is fixedly installed at one end of the spray pipe 12. The bottom of the medicine pump 11 is fixedly installed on the top of the outer wall of the purification box 6. The medicine is stored by unscrewing the bottle cap 9. The medicine pump 11 is started to draw out the medicine inside the medicine container 8 through the medicine inlet pipe 10 and flow into the medicine nozzle 13 through the spray pipe 12, spraying the medicine into the wastewater inside the purification box 6.

[0022] Furthermore, the stirring assembly includes a motor 15, which is fixedly installed at the center of the bottom of the purification tank 6. A shaft 16 is fixedly installed at the output end of the motor 15. The top end of the shaft 16 is threaded, and a connecting sleeve 17 is fixedly installed at the top of the shaft 16 through the thread. A stirring blade 18 is fixedly installed at the top of the connecting sleeve 17. The motor 15 is started by controlling the switch, and the shaft 16 drives the connecting sleeve 17 to rotate. When the connecting sleeve 17 rotates, it drives the stirring blade 18 to stir the wastewater inside the purification tank 6.

[0023] Furthermore, the filter assembly includes a top cover 19, which is installed on the top of the filter housing 1. A mounting bracket 20 is fixedly installed on the bottom of the top cover 19. Four sliding grooves are provided on the inner walls of both sides of the mounting bracket 20. Filter elements 21 are slidably installed between two corresponding sliding grooves. When wastewater enters the filter housing 1 through the inlet pipe 2, the wastewater is filtered by multiple filter elements 21 and flows out through the outlet pipe 3.

[0024] Furthermore, electric push rods 22 are provided at both ends of one side of the top cover 19. Connecting plates 14 are fixedly installed at both ends of the electric push rods 22. One side of one connecting plate 14 is installed on one side of the top cover 19, and the other side of the connecting plate 14 is installed on the top of one side of the filter box 1. The electric push rods 22 are pushed up by the switch, which drives the top cover 19 to rise, so that the mounting bracket 20 at the bottom rises out of the filter box 1. The filter element 21 is pulled out through the slide groove for cleaning or replacement.

[0025] The operating principle of the desulfurization wastewater treatment device in this application embodiment is as follows: Wastewater is drawn by a water pump 5. When the wastewater passes through the inlet pipe 2 into the filter box 1, it is filtered by multiple filter elements 21 and flows out through the outlet pipe 3. It is then sent into the purification box 6 through the connecting pipe 4. The medicine is stored by unscrewing the bottle cap 9. The medicine pump 11 is started to draw out the medicine inside the medicine tank 8 through the medicine inlet pipe 10 and flow into the medicine spray nozzle 13 through the spray pipe 12, spraying the medicine into the wastewater inside the purification box 6. The motor 15 is started by controlling the switch, and the connecting sleeve 17 is rotated by the shaft 16. When the connecting sleeve 17 rotates, it drives the stirring blades 18 to stir the wastewater inside the purification box 6. When the effect of the filter element 21 decreases after long-term operation, the electric push rod 22 is pushed up by controlling the switch, which drives the top cover 19 to rise, so that the mounting bracket 20 at the bottom rises out of the filter box 1. The filter element 21 is pulled out through the slide groove for cleaning or replacement.

[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A desulfurization wastewater treatment device for thermal power generation, characterized in that: The filter includes a filter box (1), one side of which is fixedly connected to a water inlet pipe (2). Inside the filter box (1) is a filter assembly for preliminary filtration of desulfurization wastewater. The other side of the filter box (1) is connected to a pumping assembly for extracting wastewater. One end of the pumping assembly is connected to a purification assembly, and a stirring assembly is fixedly installed at the bottom of the purification assembly.

2. The desulfurization wastewater treatment device for thermal power generation according to claim 1, characterized in that: The water pumping assembly includes a water pump (5), the water pump (5) is fixedly connected to an outlet pipe (3) at its inlet end, one end of the outlet pipe (3) extends into the interior of the filter box (1), and the water pump (5) is connected to a connecting pipe (4) at its outlet end.

3. The desulfurization wastewater treatment device for thermal power generation according to claim 2, characterized in that: The purification assembly includes a purification box (6), one end of the connecting pipe (4) extends into the interior of the purification box (6), three support legs (7) are equidistantly installed at the bottom of the purification box (6), a medicine chamber (8) is fixedly installed on one side of the purification box (6), a bottle cap (9) is threadedly connected to the bottle mouth of the medicine chamber (8), a medicine inlet pipe (10) is fixedly connected to the top of the medicine chamber (8), a medicine pump (11) is fixedly connected to one end of the medicine inlet pipe (10), a spray pipe (12) is fixedly connected to the outlet end of the medicine pump (11), a medicine nozzle (13) is fixedly installed at one end of the spray pipe (12), and the bottom of the medicine pump (11) is fixedly installed on the top of the outer wall of the purification box (6).

4. The desulfurization wastewater treatment device for thermal power generation according to claim 1, characterized in that: The stirring assembly includes a motor (15), which is fixedly installed at the center of the bottom of the purification box (6). A shaft (16) is fixedly installed at the output end of the motor (15). The top end of the shaft (16) is threaded. A connecting sleeve (17) is fixedly installed on the top of the shaft (16) by the thread. A stirring blade (18) is fixedly installed on the top of the connecting sleeve (17).

5. The desulfurization wastewater treatment device for thermal power generation according to claim 1, characterized in that: The filter assembly includes a top cover (19), which is installed on the top of the filter box (1). A mounting bracket (20) is fixedly installed on the bottom of the top cover (19). Four sliding grooves are provided on the inner walls of both sides of the mounting bracket (20), and a filter element (21) is slidably installed between two corresponding sliding grooves.

6. The desulfurization wastewater treatment device for thermal power generation according to claim 5, characterized in that: Electric push rods (22) are provided at both ends of one side of the top cover (19). Connecting plates (14) are fixedly installed at both ends of the electric push rods (22). One side of one of the connecting plates (14) is installed on one side of the top cover (19), and the other side of the connecting plate (14) is installed on the top of one side of the filter box (1).

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