Treatment equipment for chemical sewage

Abstract

The utility model discloses treatment equipment for chemical sewage, which belongs to the field of environmental protection equipment and comprises a tank body, the upper part of the tank body is provided with a feed port and an exhaust pipe, the lower part of the tank body is provided with a discharge port, a stirring shaft and a heating device are arranged in the tank body, the stirring shaft is vertically arranged, and the upper part of the stirring shaft is provided with stirring blades; the tank body comprises a stirring section and a scattering section from top to bottom, the diameter of the stirring section is larger than that of the scattering section, the lower end of the stirring shaft is connected with the partition plate, the partition plate is provided with an openable discharging port, the discharging port is located between the stirring shaft and the side wall of the tank body, and the stirring shaft is provided with a scattering assembly corresponding to the scattering section in position. The scattering assembly comprises a scattering part, and the scattering part transversely extends out of the stirring shaft and moves in the radial direction of the stirring shaft. The utility model aims to provide treatment equipment for chemical sewage, which can effectively reduce the water content of sludge and ensure that the sludge meets the incineration requirement.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment, specifically a device for treating chemical wastewater. Background Technology

[0002] Chemical plants generate wastewater during production. Suspended impurities in this wastewater, after settling over time, become chemical sludge. The harmless treatment of this chemical sludge is a crucial part of wastewater treatment. When using incineration technology for harmless treatment of chemical sludge, drying is necessary to reduce incineration time and improve energy utilization. During drying, the sludge is first dewatered using a filter press to initially reduce its moisture content. After dewatering, further thermal drying is required to further reduce the moisture content and meet incineration requirements. Furthermore, if the dried sludge clumps during incineration, incomplete combustion may occur, affecting the incineration efficiency. Utility Model Content

[0003] The purpose of this invention is to address the above problems by providing a treatment device for chemical wastewater that can effectively reduce the moisture content of sludge and ensure that the sludge meets the requirements for incineration.

[0004] To achieve the above objectives, the technical solution adopted in this application is: a treatment device for chemical wastewater, comprising a tank body, a feed port and an exhaust pipe at the upper part of the tank body, and a discharge port at the lower part of the tank body. A stirring shaft and a heating device are installed inside the tank body. The stirring shaft is vertically arranged, with stirring blades at its upper part. The tank body includes a stirring section and a dispersing section from top to bottom. The diameter of the stirring section is larger than the diameter of the dispersing section. The lower end of the stirring shaft is connected to a partition plate, which is fixedly installed within the dispersing section. An openable discharge port is provided on the partition plate, located between the stirring shaft and the side wall of the tank body. A dispersing assembly corresponding to the position of the dispersing section is installed on the stirring shaft. The dispersing assembly includes a dispersing part that extends laterally out of the stirring shaft and moves radially along the stirring shaft. Chemical sludge, after preliminary pressing and dewatering, is fed into the tank body through the feed port. The heating device operates to heat the sludge inside the tank, causing the water in the sludge to convert into water vapor, which is then discharged through the exhaust pipe. During the heating process, the stirring shaft rotates under the drive of a motor, thereby stirring the sludge in the stirring section of the tank, ensuring uniform heating of the sludge and improving drying efficiency. Simultaneously, when the sludge enters the space between the tank's dispersing section and the stirring shaft, the dispersing section breaks up the sludge, ensuring it meets incineration requirements.

[0005] Furthermore, in order to enable the dispersing part to move radially along the stirring shaft while rotating with the stirring shaft, the dispersing assembly also includes a transmission part. One end of the dispersing part extends into the stirring shaft and is connected to the transmission part. The transmission part is disposed on a slide rail inside the stirring shaft. The projection of the slide rail in the top view plane is a non-circular closed curve with variable curvature.

[0006] Furthermore, the transmission unit is provided with rollers, which match the guide grooves on the slide rail. The rollers roll within the guide grooves, which are set along the slide rail and provide motion guidance for the rollers, preventing them from deviating from the predetermined track and improving operational reliability. By replacing sliding friction with rolling contact of the rollers, the movement of the transmission unit becomes smoother, reducing wear and extending its service life.

[0007] Furthermore, a pusher is provided at the lower end of the stirring shaft to push the sludge towards the feed inlet.

[0008] Furthermore, to improve the dispersing effect, a dispersing ring is provided on the inner wall of the dispersing section of the tank. The inner wall of the dispersing ring is provided with wavy patterns, raised dots, etc., so that the sludge rolls between the tank and the dispersing zone, making the sludge subjected to uniform force and enhancing the shearing effect, thereby improving the dispersing efficiency and effect.

[0009] Furthermore, a protective shell is provided on the outside of the tank to improve production safety.

[0010] The beneficial effects of this invention are as follows: After preliminary pressing and dehydration, the chemical sludge is fed into the tank through the feeding port. The heating device operates to heat the sludge inside the tank, causing the water in the sludge to turn into water vapor and be discharged through the exhaust pipe. This effectively reduces the moisture content of the chemical sludge, making it suitable for incineration. Simultaneously, when the sludge enters between the dispersing section and the stirring shaft, the dispersing section breaks up any clumps of sludge, ensuring it meets incineration requirements. Attached Figure Description

[0011] Figure 1 This is a side view of the structure of this utility model.

[0012] Figure 2 This is a top view of the structure of the broken section.

[0013] The text labels in the diagram represent: 1. Tank body; 101. Stirring section; 102. Dispersion section; 2. Feeding port; 3. Exhaust pipe; 4. Discharge port; 5. Stirring shaft; 6. Heating device; 7. Stirring blades; 8. Baffle plate; 9. Discharge port; 10. Dispersion section; 11. Transmission section; 12. Slide rail; 13. Pushing section; 14. Dispersion ring; 15. Protective shell; 16. Support base. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solution of this application, the application will be described in detail below with reference to the accompanying drawings. The description in this section is only exemplary and explanatory, and should not be used to limit the scope of protection of this application.

[0015] Example 1, as Figures 1-2 As shown, the specific structure of this embodiment is a treatment device for chemical wastewater, including a tank 1. The upper part of the tank 1 is provided with a feed port 2 and an exhaust pipe 3, and the lower part of the tank 1 is provided with a discharge port 4. Inside the tank 1, a stirring shaft 5 and a heating device 6 are installed. The stirring shaft 5 is coaxially arranged with the tank 1, and its upper part is provided with stirring blades 7. The heating device 6 can adopt existing technologies such as electric heating or steam heating. In this embodiment, a pipe runs around the side wall of the tank 1, and an electric heating element can be installed inside the pipe, which operates through an external power source. Alternatively, the pipe can be connected to a steam generator to allow steam to enter the pipe and heat the sludge inside the tank. Simultaneously, a pipe can also be installed inside the stirring shaft 5, and the upper end of the stirring shaft 5 is connected to a heat source via a rotary joint. The heat source can be an electric or steam generator. A protective shell 15 is provided on the outside of the tank 1, separating the tank 1 where the heating device 6 is located from the outside environment to prevent accidental contact by personnel.

[0016] The tank body 1 includes a stirring section 101 and a dispersing section 102 from top to bottom. The diameter of the stirring section 101 is larger than the diameter of the dispersing section 102. In this embodiment, the stirring section 101 and the dispersing section 102 are coaxially arranged and connected by an inclined plane. The longitudinal section of the dispersing section 102 is rectangular.

[0017] The lower end of the stirring shaft 5 is connected to the partition plate 8, which is fixedly installed within the dispersing section 102. The partition plate 8 has an openable and closable discharge port 9 located between the stirring shaft 5 and the side wall of the tank body 1. Multiple discharge ports 9 are arranged in a circular array around the axis of the tank body 1 to accelerate the discharge speed. The discharge ports 9 are equipped with gates, valves, and other opening and closing mechanisms, which are driven by cylinders to achieve automatic opening and closing of the discharge ports 9. A pusher section 13 is provided at the lower end of the side wall of the stirring shaft 5.

[0018] The stirring shaft 5 is provided with a dispersing assembly corresponding to the position of the dispersing section 102. Multiple dispersing assemblies can be provided and arranged in a ring array around the axis of the tank body 1. The dispersing assembly includes a dispersing part 10 and a transmission part 11. The dispersing part 10 is arranged radially along the stirring shaft 5. One end of the dispersing part 10 extends out of the stirring shaft 5, and the other end extends into the stirring shaft 5 and connects to the transmission part 11. Multiple dispersing parts 10 can be provided on one dispersing assembly to improve the mixing and dispersing effect. All dispersing parts 10 on one dispersing assembly are fixedly connected to one transmission part 11.

[0019] The transmission unit 11 has a support at one end of the inner side of the tank body 1. A roller is mounted on the support, and the roller matches the guide groove on the slide rail 12. The slide rail 12 is mounted on a support base 16, which is fixedly mounted on the upper end of the partition plate 8. The slide rail 12 is a non-circular closed curve; in this embodiment, the slide rail 12 is elliptical when viewed from above. The guide groove, slide rail 12, and stirring shaft 5 are coaxially arranged. A dispersing ring 14 is provided on the inner wall of the dispersing section 102 of the tank body 1. The dispersing ring 14 can be made of hard alloy materials such as tungsten-cobalt, and its inner wall has raised dots, wavy patterns, etc.

[0020] Specific processing steps: Chemical sludge is fed into tank 1 through feed port 2. Heating device 6 is activated to heat the chemical sludge in tank 1. During the heating process, the moisture in the sludge is converted into water vapor, which is discharged from tank 1 through exhaust pipe 3, thus achieving sludge drying. During drying, feed port 9 is closed.

[0021] During the drying process, the motor drives the stirring shaft 5 to rotate. The stirring blades 7 on the stirring shaft 5 agitate the sludge in the stirring section 101, ensuring uniform heating of the sludge and improving drying efficiency. As the stirring shaft 5 rotates, the sludge moves towards the dispersing section 102 under the action of gravity and the stirring blades 7. After entering the dispersing section 102, the sludge is compacted due to the reduced distance between the dispersing section 102 and the side wall of the stirring shaft 5. Simultaneously, the dispersing section 10 rotates with the stirring shaft 5 to further disperse the sludge.

[0022] When the dispersing part 10 rotates with the stirring shaft 5, due to the different radii on the slide rail 12, when the transmission part 11 moves to the long axis of the slide rail 12, the dispersing part 10 moves to the outside of the tank body 1, and when the transmission part 11 moves to the short axis of the slide rail 12, the dispersing part 10 moves to the inside of the tank body 1.

[0023] After drying is completed, the discharge port 9 is opened, and the dried sludge moves to the lower part of the tank 1 and is finally discharged from the discharge port 4.

[0024] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A treatment device for chemical wastewater, comprising a tank (1), wherein a feed inlet (2) and an exhaust pipe (3) are provided at the upper part of the tank (1), and a discharge outlet (4) is provided at the lower part of the tank (1); a stirring shaft (5) and a heating device (6) are provided inside the tank (1), wherein the stirring shaft (5) is vertically arranged and a stirring blade (7) is provided at its upper part; characterized in that, The tank (1) includes a stirring section (101) and a dispersing section (102) from top to bottom. The diameter of the stirring section (101) is larger than the diameter of the dispersing section (102). The lower end of the stirring shaft (5) is connected to the partition plate (8). The partition plate (8) is fixedly installed in the dispersing section (102). The partition plate (8) is provided with an openable discharge port (9). The discharge port (9) is located between the stirring shaft (5) and the side wall of the tank (1). The stirring shaft (5) is provided with a dispersing assembly corresponding to the position of the dispersing section (102). The dispersing assembly includes a dispersing part (10). The dispersing part (10) extends laterally out of the stirring shaft (5) and moves radially along the stirring shaft (5).

2. The equipment for treating chemical wastewater according to claim 1, characterized in that, The dispersing assembly also includes a transmission part (11), one end of which extends into the stirring shaft (5) and is connected to the transmission part (11). The transmission part (11) is disposed on a slide rail (12) inside the stirring shaft (5), and the slide rail (12) is a non-circular closed curve.

3. The equipment for treating chemical wastewater according to claim 2, characterized in that, The transmission part (11) is provided with a roller, which matches the guide groove on the slide rail (12), and the guide groove is provided along the slide rail (12).

4. The equipment for treating chemical wastewater according to claim 1, characterized in that, The stirring shaft (5) is provided with a pusher section (13) at its lower end.

5. The equipment for treating chemical wastewater according to claim 1, characterized in that, A dispersing ring (14) is provided on the inner wall of the dispersing section (102) of the tank (1).

6. The equipment for treating chemical wastewater according to claim 1, characterized in that, A protective shell (15) is provided on the outside of the tank body (1).

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