CN210764952U - Sludge coagulation reaction device - Google Patents

Abstract

The utility model discloses a mud coagulation reaction unit, including the retort, there is the motor through motor mount pad fixed mounting on the retort, shaft coupling fixedly connected with stirring rake is passed through to the axis of rotation of motor, the lateral part welded fastening of stirring rake has the scraper blade, one side of scraper blade is laminated mutually with the inner wall of retort, the bottom welded fastening of stirring rake has the spiral to transport the stub bar, there is nitrogen generator on the upper portion of retort through the intake pipe intercommunication, one side of retort has the water tank through the outlet duct intercommunication, the intercommunication has the blast pipe on the water tank, install the active carbon net in the blast pipe, be provided with the mechanism of disinfecting in the water tank, the bottom intercommunication of retort has row material pipe. The utility model discloses a this reaction unit can disinfect to the harmful gas that produces in the reaction process and remove the peculiar smell processing, can reduce the volume of mud adhesion on reaction unit's inner wall to make things convenient for the mud eduction gear after the reaction.

Description

A sludge coagulation reaction device

technical field

The utility model belongs to the technical field of sludge treatment, in particular to a sludge coagulation reaction device.

Background technique

After the sewage is treated, a large amount of excess sludge will be produced. The treatment and disposal of excess sludge is a major problem in sewage biochemical treatment. The basic principle of secondary biochemical treatment of sewage in sewage plants is that microorganisms use organic matter in sewage as nutrients for their own metabolism, decompose them, and convert them into CO2, H20 and metabolic secretions. The residual secretion produced by the metabolism of microorganisms forms excess sludge, which aggregates with scum in sewage and microbial flora to form excess sludge in sewage plants, which is the secondary product after biochemical treatment of sewage in sewage plants. It has also become urban solid waste. As we all know, sludge contains a large number of harmful microorganisms such as pathogenic bacteria and parasite eggs, as well as a large amount of toxic heavy metals such as arsenic, copper, mercury, chromium, and carcinogenic substances such as dioxin. Due to the strong hydrophilicity of the bacterial colloid polymer of the sludge, the dewatering rate of the sludge is difficult. Improper treatment and disposal of sludge in urban sewage plants or non-standard treatment and disposal will cause a series of environmental problems. For example, due to high water content, a large amount of harmful permeate will be caused during landfill, and in severe cases, a "blowout" phenomenon will occur, which will pose a new potential threat to the ecological environment. Therefore, sludge treatment and disposal is not only a difficult subject in the environmental field, but also one of the current hot topics in the environmental protection field. At present, the treatment methods for excess sludge mainly include sanitary landfill, comprehensive land utilization, heat treatment, sludge composting, and ultrasonic sludge digestion.

The sludge coagulation reaction is mainly to reduce the water content of the sludge. When the existing sludge coagulation reaction device is in use, it cannot sterilize and deodorize the harmful gas generated during the reaction process. When the water content of the sludge is reduced, it is easy to cause the sludge to block the feeding port, and the sludge is easy to adhere to the inner wall of the reaction device.

Utility model content

The purpose of the utility model is to provide a sludge coagulation reaction device, through which the harmful gas generated in the reaction process can be sterilized and deodorized, and the amount of sludge adhering to the inner wall of the reaction device can be reduced. , and the sludge discharge device after the reaction is convenient to solve the problems raised in the above background technology.

To achieve the above object, the utility model provides the following technical solutions:

A sludge coagulation reaction device includes a reaction tank, a motor is fixedly installed on the reaction tank through a motor mounting seat, the rotating shaft of the motor penetrates through the upper part of the reaction tank through a sealed bearing, and the rotating shaft of the motor passes through the upper part of the reaction tank. The coupling is fixedly connected with a stirring paddle, the side of the stirring paddle is welded and fixed with a scraper, one side of the scraper is attached to the inner wall of the reaction tank, and the bottom of the stirring paddle is welded and fixed with a screw feeder The upper part of the reaction tank is connected with a nitrogen generator through an air inlet pipe, and one side of the reaction tank is connected with a water tank through an air outlet pipe, the water tank is connected with an exhaust pipe, and an activated carbon mesh is installed in the exhaust pipe , a sterilization mechanism is arranged in the water tank, and a discharge pipe is communicated with the bottom of the reaction tank.

Preferably, the sterilization mechanism includes an ultraviolet lamp and a photocatalyst layer, the ultraviolet lamp is fixedly installed in the water tank by bolts, and the photocatalyst layer is painted on the inner wall of the water tank.

Preferably, one end of the air outlet pipe is screwed with an aeration pipe.

Preferably, a ball valve is installed on the air outlet pipe.

Preferably, the bottom of the reaction tank is arranged in a conical shape.

Preferably, a check valve is installed on the air intake pipe.

Compared with the prior art, the beneficial effects of the present utility model are:

1. Through the use of the nitrogen generator, the harmful gas generated in the reaction can be passed into the water tank, and the harmful gas introduced into the water tank can be sterilized and deodorized by the combination of the ultraviolet lamp and the photocatalyst layer. The activated carbon mesh in the trachea further deodorizes the gas, which can effectively reduce the impact on the surrounding environment during the sludge treatment process;

2. Through the use of the scraper, when the stirring paddle rotates, the scraper is driven to rotate, so that the scraper scrapes off the sludge adhering to the inner wall of the reaction tank. Then the sludge is transported out of the reaction tank, which is not easy to block the discharge pipe and facilitates feeding.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the cross-sectional schematic diagram of the reaction tank of the utility model;

3 is a schematic cross-sectional view of the water tank of the present invention.

In the figure: 1. Reaction tank; 2. Motor mounting seat; 3. Motor; 4. Sealed bearing; 5. Stirring paddle; 6. Scraper; 7. Screw feed head; 8. Nitrogen generator; 9. Water tank; 10. Exhaust pipe; 11. Sterilization mechanism; 12. Ultraviolet lamp; 13. Photocatalyst layer; 14. Aeration pipe; 15. Air outlet pipe; 16. Ball valve; 17. Activated carbon mesh; valve; 20, discharge pipe.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figures 1-3, the utility model provides a technical solution:

A sludge coagulation reaction device, comprising a reaction tank 1, a motor 3 is fixedly installed on the reaction tank 1 through a motor mounting seat 2, and a rotating shaft of the motor 3 penetrates through the upper part of the reaction tank 1 through a sealed bearing 4, The rotating shaft of the motor 3 is fixedly connected with a stirring paddle 5 through a coupling. The stirring paddle is used for stirring when the sludge is reacted with the coagulation agent, which can improve the mixing efficiency, and when the material is unloaded, the stirring paddle rotates, which is convenient The sludge is discharged from the reaction tank 1, the side of the stirring paddle 5 is welded and fixed with a scraper 6, one side of the scraper 6 is attached to the inner wall of the reaction tank 1, and the bottom of the stirring paddle 5 is welded and fixed with a The screw feed head 7, the upper part of the reaction tank 1 is communicated with a nitrogen generator 8 through an air inlet pipe 18, and one side of the reaction tank 1 is communicated with a water tank 9 through an air outlet pipe 15, and the water tank 9 is communicated with an exhaust gas Pipe 10, an activated carbon mesh 17 is installed in the exhaust pipe 10, a sterilization mechanism 11 is arranged in the water tank 9, a discharge pipe 20 is connected to the bottom of the reaction tank 1, and the spiral plastic head 7 is located in the discharge pipe 10. directly above the tube 20.

Further, the sterilization mechanism 11 includes an ultraviolet lamp 12 and a photocatalyst layer 13, the ultraviolet lamp 12 is fixedly installed in the water tank 9 by bolts, and the photocatalyst layer 13 is painted on the inner wall of the water tank 9, which can affect the reaction process. The harmful gases produced are sterilized and deodorized.

Further, one end of the air outlet pipe 15 is threadedly connected with the aeration pipe 14, which can make the harmful gas soluble in water better dissolve in water.

Further, a ball valve 16 is installed on the air outlet pipe 15 , the ball valve 16 can be closed during discharge, and the reaction tank is inflated with nitrogen generated by the nitrogen generator 8 , so that the sludge can be discharged from the reaction tank 1 .

Further, the bottom of the reaction tank 1 is configured in a conical shape, which can facilitate the discharge of sludge from the reaction tank 1 .

Further, a check valve 19 is installed on the air inlet pipe 18 , which can prevent harmful gases from flowing back into the nitrogen generator 8 .

Structural principle: When in use, the sludge after oxidation reaction is sent into the reaction tank 1 from the feeding pipe, and the coagulation agent is added into the reaction tank 1 through the feeding pipe. Through the use of the nitrogen generator 8, the reaction The harmful gas generated is passed into the water tank 9, and the ultraviolet lamp 12 and the photocatalyst layer 13 can be used together to sterilize and deodorize the harmful gas introduced into the water tank 9. After passing through the activated carbon mesh 17 in the exhaust pipe 10, further The deodorization treatment of the gas can effectively reduce the impact on the surrounding environment during the sludge treatment process;

Through the use of the scraper 6, when the stirring paddle 5 rotates, the scraper 6 is driven to rotate, so that the scraper 6 scrapes off the sludge adhering to the inner wall of the reaction tank 1, and through the cooperation of the screw feeding head 7 and the stirring paddle 5 In use, the sludge can be transported out of the reaction tank 1 after the reaction, it is not easy to block the discharge pipe 20, and the feeding is convenient.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A sludge coagulation reaction device, comprising a reaction tank (1), characterized in that: a motor (3) is fixedly installed on the reaction tank (1) through a motor mounting seat (2), and the motor (3) ) through the upper part of the reaction tank (1) through the sealed bearing (4), the rotating shaft of the motor (3) is fixedly connected with a stirring paddle (5) through a coupling, and the stirring paddle (5) The side part is welded and fixed with a scraper (6), one side of the scraper (6) is attached to the inner wall of the reaction tank (1), and the bottom of the stirring paddle (5) is welded and fixed with a screw feeding head ( 7), the upper part of the reaction tank (1) is connected with a nitrogen generator (8) through an air inlet pipe (18), and one side of the reaction tank (1) is connected with a water tank (9) through an air outlet pipe (15), An exhaust pipe (10) is communicated with the water tank (9), an activated carbon mesh (17) is installed in the exhaust pipe (10), and a sterilization mechanism (11) is arranged in the water tank (9). A discharge pipe (20) is communicated with the bottom of the reaction tank (1). 2 . The sludge coagulation reaction device according to claim 1 , wherein the sterilization mechanism ( 11 ) comprises an ultraviolet lamp ( 12 ) and a photocatalyst layer ( 13 ), and the ultraviolet lamp ( 12 ) passes through the The bolts are fixedly installed in the water tank (9), and the photocatalyst layer (13) is painted on the inner wall of the water tank (9). 3 . The sludge coagulation reaction device according to claim 1 , wherein an aeration pipe ( 14 ) is threadedly connected to one end of the air outlet pipe ( 15 ). 4 . 4 . The sludge coagulation reaction device according to claim 1 , wherein a ball valve ( 16 ) is installed on the air outlet pipe ( 15 ). 5 . 5 . The sludge coagulation reaction device according to claim 1 , wherein the bottom of the reaction tank ( 1 ) is arranged in a conical shape. 6 . 6 . The sludge coagulation reaction device according to claim 1 , wherein a check valve ( 19 ) is installed on the air inlet pipe ( 18 ). 7 .

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