A hazardous waste treatment device in sewage treatment

Abstract

The utility model relates to sewage treatment technical field discloses a kind of treatment equipment of hazardous waste in sewage treatment, including lift pump and water tank, the output end of lift pump is fixedly connected with connecting pipe, the outside of connecting pipe is fixedly connected with reaction kettle, the outside of reaction kettle is provided with adapter pipe, the outside of adapter pipe is fixedly connected with horizontal reactor, the inside of reaction kettle is fixedly connected with mixing mechanism, the inside of horizontal reactor is provided with cleaning mechanism;The mixing mechanism includes motor, and the outside of motor is fixedly connected in the outside of reaction kettle.In the utility model, movement is carried out by motor driving connecting rod, so that connecting plate drives fixed rod to rotate, and then gear drives stirring vane to move, so that sludge and acid-base neutralizing agent are uniformly contacted by sufficient mixing, and the stable neutralization effect is guaranteed, which lays a foundation for subsequent dewatering and solidification treatment.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a device for treating hazardous waste in wastewater treatment. Background Technology

[0002] In industrial wastewater treatment plants, it treats heavy metal sludge from electroplating wastewater and toxic residues from chemical wastewater to prevent secondary pollution from hazardous waste; in municipal wastewater treatment, it reduces the volume of hazardous solid waste intercepted by screens and harmful sludge concentrated in sedimentation tanks; in pharmaceutical wastewater treatment, it treats hazardous waste filter residue containing antibiotic residues to prevent the spread of biological toxicity.

[0003] In the existing technology, some sewage treatment equipment separates hazardous waste from water through gravity, which is suitable for treating particulate hazardous waste with high density. Chemical neutralization adjusts the acidity and alkalinity of hazardous waste by adding agents to change its chemical properties. Incineration uses high temperature to burn hazardous waste to achieve volume reduction.

[0004] However, in actual use, the mixture cannot be fully mixed, the hazardous waste and the reagent come into uneven contact, the reaction is incomplete, the residual pollutants increase, the local concentration is too high and the reagent is wasted, the unreacted area is prone to secondary pollution, and insufficient mixing also causes hazardous waste particles to settle and accumulate, increasing the difficulty of cleaning and making it difficult to meet the requirements for the harmless treatment of hazardous waste. In order to address the above problems, a hazardous waste treatment device for sewage treatment is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a hazardous waste treatment device for sewage treatment, aiming to improve the problem that some sewage treatment devices in the prior art cannot fully mix wastewater.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A hazardous waste treatment device for sewage treatment includes a booster pump and a water tank. The output end of the booster pump is fixedly connected to a connecting pipe. A reaction vessel is fixedly connected to the outside of the connecting pipe. A connecting pipe is provided outside the reaction vessel. A horizontal reactor is fixedly connected to the outside of the connecting pipe. A mixing mechanism is fixedly connected inside the reaction vessel. A cleaning mechanism is provided inside the horizontal reactor.

[0008] The mixing mechanism includes a motor, which is fixedly connected to the outside of the reaction vessel. A connecting rod is fixedly connected to the drive end of the motor. A connecting plate is rotatably connected to the outside of the connecting rod. A fixing rod is fixedly connected to the outside of the connecting plate. A gear is fixedly connected to the outside of the fixing rod. A follower rod is fixedly connected to the bottom of the gear. Multiple stirring blades are fixedly connected to the outside of the follower rod. A support assembly is fixedly connected to the outside of the connecting rod.

[0009] As a further description of the above technical solution:

[0010] The support assembly includes a support plate, the outside of which is fixedly connected to the inside of the reactor, a support ring is fixedly connected to the bottom of the support plate, and a toothed ring is fixedly connected to the inside of the support ring.

[0011] As a further description of the above technical solution:

[0012] The cleaning mechanism includes a support frame, the outside of which is located at the bottom of the horizontal reactor. A hydraulic cylinder is fixedly connected to the outside of the support frame, and a connecting rod is fixedly connected to the drive end of the hydraulic cylinder.

[0013] As a further description of the above technical solution:

[0014] A circular scraper is fixedly connected to the outside of the connecting rod, and multiple feeding ports are provided on the outside of the horizontal reactor;

[0015] As a further description of the above technical solution:

[0016] The top of the horizontal reactor is equipped with multiple nozzles, and a conveying pipe is fixedly connected to the outside of each nozzle.

[0017] As a further description of the above technical solution:

[0018] A water pump is installed outside the water tank, and the output end of the water pump is fixedly connected to the outside of the delivery pipe.

[0019] As a further description of the above technical solution:

[0020] A sludge pump is installed outside the horizontal reactor, and the output end of the sludge pump is fixedly connected to a discharge port.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the motor drives the connecting rod to move, which in turn causes the connecting plate to rotate the fixed rod. This, in turn, causes the gear to drive the stirring blades to move, thus ensuring thorough mixing and allowing the sludge to come into uniform contact with the acid-base neutralizing agent. This quickly adjusts the pH of the system to a stable range, preventing localized over-acidity or over-alkaliness that could lead to equipment corrosion. At the same time, it can enhance the reaction between the sludge and the flocculant and conditioner, improve the solid-liquid separation efficiency, ensure stable neutralization effect, and lay a uniform material foundation for subsequent dewatering and solidification treatment.

[0023] 2. In this utility model, the connecting rod is driven by a hydraulic cylinder to move, causing the circular scraper to slide close to the inner wall of the horizontal reactor. This can efficiently scrape off residual sludge, preventing material adhesion and scaling from affecting the reaction efficiency. Cleaning aids can be added simultaneously at the feeding port, and the water pump connected to the conveying pipe drives the nozzle to spray high-pressure water, enhancing the cleaning effect. The sludge pump can promptly discharge the waste liquid generated during cleaning from the discharge port, preventing secondary pollution, ensuring the cleanliness of the reactor's inner wall, and providing a stable reaction environment for hazardous waste treatment. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a hazardous waste treatment device for sewage treatment proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of a water pump in a hazardous waste treatment device for sewage treatment proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the feeding port of a hazardous waste treatment device in wastewater treatment proposed in this utility model;

[0027] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Booster pump; 2. Water tank; 3. Connecting pipe; 4. Reactor; 5. Connecting pipe; 6. Horizontal reactor; 7. Motor; 8. Connecting rod; 9. Connecting plate; 10. Fixing rod; 11. Gear; 12. Follower rod; 13. Stirring blade; 14. Support plate; 15. Support ring; 16. Gear ring; 17. Support frame; 18. Hydraulic cylinder; 19. Connecting rod; 20. Circular scraper; 21. Feed port; 22. Nozzle; 23. Conveying pipe; 24. Water pump; 25. Sludge pump; 26. Discharge port. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a hazardous waste treatment device for sewage treatment, including a lift pump 1 and a water tank 2. The lift pump 1 is a horizontal centrifugal pump with a cylindrical pump body and a stable base with shock-absorbing pads at the bottom. It can pressurize and transport sewage containing hazardous waste. The output end of the lift pump 1 is fixedly connected to a connecting pipe 3. The connecting pipe 3 is a thickened cylindrical steel pipe with anti-corrosion treatment on the inner wall. One end is sealed to the outlet of the lift pump 1 through a flange, and the other end is vertically connected to the outside of the reactor 4. The reactor 4 is fixedly connected to the outside of the connecting pipe 3. A connecting pipe 5 is provided on the outside of the reactor 4. A horizontal reactor 6 is fixedly connected to the outside of the connecting pipe 5. A mixing mechanism is fixedly connected inside the reactor 4. A cleaning mechanism is provided inside the horizontal reactor 6.

[0032] The mixing mechanism includes a motor 7, the outer casing of which is cylindrical and is fixedly installed at the top center of the reactor 4 by a bracket. The output shaft extends downward into the reactor 4 through a sealed bearing. The motor 7 is externally fixedly connected to the outside of the reactor 4. A connecting rod 8 is fixedly connected to the drive end of the motor 7. The connecting rod 8 is a high-strength cylindrical metal rod, one end of which is connected to the output shaft of the motor 7 and can rotate synchronously with the motor 7. A connecting plate 9 is rotatably connected to the outside of the connecting rod 8. A fixing rod 10 is fixedly connected to the outside of the connecting plate 9. A gear 11 is fixedly connected to the outside of the fixing rod 10.

[0033] A follower rod 12 is fixedly connected to the bottom of the gear 11. Multiple stirring blades 13 are fixedly connected to the outside of the follower rod 12. The stirring blades 13 are arc-shaped rectangular plate structures that can rotate with the follower rod 12 to form vortices. A support assembly is fixedly connected to the outside of the connecting rod 8. The support assembly includes a support plate 14. The outside of the support plate 14 is fixedly connected to the inside of the reactor 4. A support ring 15 is fixedly connected to the bottom of the support plate 14. A gear ring 16 is fixedly connected to the inside of the support ring 15. The gear ring 16 is an internal meshing gear ring structure. The inner teeth mesh precisely with the gear 11, which can guide the gear 11 to generate rotational motion while revolving around the revolution.

[0034] Reference Figure 1 , Figure 2 and Figure 3The cleaning mechanism includes a support frame 17, which is externally located at the bottom of the horizontal reactor 6. A hydraulic cylinder 18 is fixedly connected to the outside of the support frame 17. The hydraulic cylinder 18 is horizontally fixed in the middle of the crossbeam of the support frame 17. The piston rod extends through the reactor head and into the interior. A connecting rod 19 is fixedly connected to the drive end of the hydraulic cylinder 18. A circular scraper 20 is fixedly connected to the outside of the connecting rod 19. The circular scraper 20 is an annular rubber scraper with its edge tightly attached to the inner wall of the horizontal reactor 6. When it moves with the connecting rod 19, it can scrape off the deposits on the inner wall. Multiple feeding ports 21 are provided on the outside of the horizontal reactor 6. The feeding ports 21 are circular pipes with sealing caps and are evenly distributed along the axial direction of the top of the reactor. Different types of treatment agents can be fed in.

[0035] The top of the horizontal reactor 6 is equipped with multiple nozzles 22, which are fan-shaped spray nozzles distributed along the circumference of the inner wall of the reactor. They can spray high-pressure water to wash the inner wall. The nozzles 22 are fixedly connected to a conveying pipe 23, which is a branch pipe. The main pipe is connected to a water pump 24, and the branch pipes are respectively connected to each nozzle 22. The water tank 2 is equipped with a water pump 24. The inlet of the water pump 24 is connected to the water tank 2 through a pipe. It can draw clean water and pressurize it for delivery. The output end of the water pump 24 is fixedly connected to the outside of the conveying pipe 23. The horizontal reactor 6 is equipped with a sludge pump 25, which is a screw pump. The feed inlet is connected to the sludge discharge port at the bottom of the reactor through a pipe. The output end of the sludge pump 25 is fixedly connected to the discharge port 26.

[0036] Working principle: The motor 7 starts, causing the output shaft to drive the connecting rod 8 to rotate synchronously. The connecting plate 9 outside the connecting rod 8 rotates with the shaft, causing the fixed rod 10 to drive the gear 11 to roll along the gear ring 16 inside the support ring 15. The gear 11 rotates on its own axis while revolving around the central axis, which in turn causes the follower rod 12 to rotate with the gear 11. The external arc-shaped rectangular stirring blades 13 form a vortex, which stirs and mixes the sewage and reagents in the reaction vessel 4. The support plate 14 provides stable support for the gear ring 16, thereby ensuring smooth operation. The mixed sewage is transported to the horizontal reactor 6 for deep treatment through the connecting pipe 5.

[0037] The piston rod of the hydraulic cylinder 18 extends and retracts, and the piston rod passing through the reactor head drives the connecting rod 19 to reciprocate, so that the circular scraper 20 moves with it, and the edge fits tightly against the inner wall of the reactor to scrape off the dirt attached to the inner wall. At the same time, the water pump 24 outside the water tank 2 starts, draws clean water from the water tank 2 through the pipeline, pressurizes it, and delivers the clean water through the branch conveying pipe 23 to the fan-shaped spray nozzles 22 distributed around the inner wall of the reactor. The nozzles 22 spray high-pressure water to wash the inner wall. The treated hazardous waste sludge is pressurized by the sludge pump 25 connected to the outside of the reactor and delivered to the designated location through the discharge port 26 connected to the output end.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 hazardous waste treatment device for sewage treatment, comprising a booster pump (1) and a water tank (2), characterized in that: The output end of the booster pump (1) is fixedly connected to a connecting pipe (3), the outside of the connecting pipe (3) is fixedly connected to a reactor (4), the outside of the reactor (4) is provided with a connecting pipe (5), the outside of the connecting pipe (5) is fixedly connected to a horizontal reactor (6), the inside of the reactor (4) is fixedly connected to a mixing mechanism, and the inside of the horizontal reactor (6) is provided with a cleaning mechanism. The mixing mechanism includes a motor (7), which is fixedly connected to the outside of the reaction vessel (4). A connecting rod (8) is fixedly connected to the drive end of the motor (7). A connecting plate (9) is rotatably connected to the outside of the connecting rod (8). A fixing rod (10) is fixedly connected to the outside of the connecting plate (9). A gear (11) is fixedly connected to the outside of the fixing rod (10). A follower rod (12) is fixedly connected to the bottom of the gear (11). Multiple stirring blades (13) are fixedly connected to the outside of the follower rod (12). A support assembly is fixedly connected to the outside of the connecting rod (8).

2. The hazardous waste treatment equipment for wastewater treatment according to claim 1, characterized in that: The support assembly includes a support plate (14), the outside of which is fixedly connected to the inside of the reactor (4), a support ring (15) is fixedly connected to the bottom of the support plate (14), and a toothed ring (16) is fixedly connected to the inside of the support ring (15).

3. The hazardous waste treatment equipment for wastewater treatment according to claim 2, characterized in that: The cleaning mechanism includes a support frame (17), which is located at the bottom of the horizontal reactor (6). A hydraulic cylinder (18) is fixedly connected to the outside of the support frame (17), and a connecting rod (19) is fixedly connected to the drive end of the hydraulic cylinder (18).

4. The hazardous waste treatment equipment for wastewater treatment according to claim 3, characterized in that: A circular scraper (20) is fixedly connected to the outside of the connecting rod (19), and multiple feeding ports (21) are provided on the outside of the horizontal reactor (6).

5. The hazardous waste treatment equipment for wastewater treatment according to claim 1, characterized in that: The top of the horizontal reactor (6) is provided with multiple nozzles (22), and a delivery pipe (23) is fixedly connected to the outside of the nozzles (22).

6. The hazardous waste treatment equipment for wastewater treatment according to claim 5, characterized in that: A water pump (24) is installed outside the water tank (2), and the output end of the water pump (24) is fixedly connected to the outside of the delivery pipe (23).

7. The hazardous waste treatment equipment for wastewater treatment according to claim 1, characterized in that: The horizontal reactor (6) is equipped with a sludge pump (25) on its exterior, and the output end of the sludge pump (25) is fixedly connected to a discharge port (26).

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