CN211896239U

CN211896239U - Back washing device for porous ceramic particles

Info

Publication number: CN211896239U
Application number: CN201922092871.1U
Authority: CN
Inventors: 张克勤; 周宁; 董伊航; 胡才霞
Original assignee: Wuxi Bihongda Environmental Technology Co ltd
Current assignee: Wuxi Bihongda Environmental Technology Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-11-10
Anticipated expiration: 2029-11-28

Abstract

The utility model discloses a back washing unit of porous ceramic granule. The utility model discloses a back washing device of porous ceramic particles, which comprises an air inlet, wherein the air inlet is arranged below a packing layer and is used for washing the packing layer with air; the water inlet is arranged below the packing layer and used for washing the packing layer; the water outlet is arranged above the packing layer and used for discharging cleaning wastewater; and the spiral cutter is arranged above the packing layer and comprises three cutting strips, one ends of the three cutting strips are mutually connected, the other ends of the three cutting strips are outwards diffused, the cutting strips are arc-shaped cutting strips, and the three cutting strips are uniformly distributed along the geometric center. The utility model discloses a back washing unit of porous ceramic granule through setting up the spiral cutterbar, can be fine cut the filler, has solved the jam of porous ceramic granule well and the problem that hardens.

Description

Back washing device for porous ceramic particles

Technical Field

The utility model relates to a back washing unit of porous ceramic granule belongs to environmental protection technical field.

Background

The biological filter technology has the advantages of high load, small floor area, high automation degree, impact load resistance and the like, and is favored by water treatment practitioners. However, the biological filter has some problems, for example, the filtering material is easy to block and harden in the long-term operation process of the porous ceramsite filtering material loaded biological membrane structure, thereby seriously affecting the treatment effect of the biological filter. The existing solution is mainly to carry out back washing by a back washing device, and trapped suspended matters and biomembranes are discharged out of a pool under the back washing action. The back washing is to back wash the porous ceramic particles through the steps of gas washing, water washing, gas water washing and the like. However, in the existing backwashing system, the filler which moves is mainly collided with the cutting net for crushing, but the filler is difficult to play a good cutting role due to the limited movement range of the filler (the filler is only expanded and is not fluidized in the backwashing process).

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a back washing unit of porous ceramic granule, the utility model discloses a back washing unit is through setting up the spiral cutterbar, can be fine cut the filler, has solved the jam and the problem that hardens of porous ceramic granule well.

A first object of the present invention is to provide a back washing device for porous ceramic particles for back washing a biological filter provided with a packing layer, comprising:

the air inlet is arranged below the packing layer and is used for carrying out air washing on the packing layer; and the number of the first and second groups,

the water inlet is arranged below the packing layer and is used for washing the packing layer; and the number of the first and second groups,

the water outlet is arranged above the packing layer and used for discharging cleaning wastewater; and the number of the first and second groups,

the spiral cutter is arranged above the packing layer and comprises three cutting strips, one ends of the three cutting strips are mutually connected, the other ends of the three cutting strips are outwards diffused, the cutting strips are arc-shaped cutting strips, and the three cutting strips are uniformly distributed along the geometric center.

Furthermore, the concave surfaces of the three cutting strips are arranged in a clockwise or anticlockwise direction.

Further, the cutting strip disperse the end and outwards be equipped with the extension piece, the convex surface setting of extension piece partial to cutting strip to with the cutting strip divergent the contained angle of the tangent line of end be less than 90 o.

Furthermore, a water and gas distribution pipeline is arranged among the gas inlet, the water inlet and the packing layer, the water and gas distribution pipeline is provided with a cavity and a plurality of backflushing ports communicated with the cavity, and the backflushing ports face to the packing layer. Through setting up water distribution gas distribution pipeline, can be more even with gas and water distribution, can wash the packing layer better more evenly.

Furthermore, the plurality of backflushing ports are uniformly distributed on the cavity.

Further, the air inlet is connected with an air pump.

Furthermore, the water inlet is connected with a high-pressure water pump.

Furthermore, the lower side of the packing layer is also provided with a vibration component. Through setting up the vibration subassembly, can strengthen the washing effect to set up the vibration subassembly, the filler that hardens disperses more easily.

Further, the vibration assembly comprises a vibrating rod and a vibration motor.

The utility model has the advantages that:

the utility model discloses a back washing unit of porous ceramic granule through setting up the spiral cutterbar, can be fine cut the filler, has solved the jam of porous ceramic granule well and the problem that hardens.

Drawings

FIG. 1 is a schematic structural view of a back washing device for porous ceramic particles according to the present invention;

fig. 2 is a schematic structural diagram of the spiral cutter of the present invention.

The reference numbers in the figures illustrate: 1. the biological filter comprises a biological filter 101, a filler layer 2, an air inlet 201, an air pump 3, a water inlet 301, a high-pressure water pump 4, a water outlet 5, a spiral cutter 501, a cutting strip 502, an extension piece 6, a water and gas distribution pipeline 601, a cavity 602, a back flushing port 7 and a vibration assembly.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

As shown in fig. 1 and 2, the utility model discloses a back washing unit of porous ceramic granule for carry out the back washing to the biological filter 1 that is equipped with packing layer 101, include: the air inlet 2 is connected with an air pump 201, and the air inlet 2 is arranged below the packing layer 101 and used for carrying out air washing on the packing layer 101; the water inlet 3 is connected with a high-pressure water pump 301, and the water inlet 3 is arranged below the packing layer 101 and used for washing the packing layer 101; the water outlet 4 is arranged above the packing layer 101 and used for discharging cleaning wastewater; and, the spiral cutter 5, the spiral cutter includes three cutting strips 501, three cutting strips 501 one end interconnect, the other end outwards diverges, cutting strip 501 is the arc cutting strip, three cutting strips 501 along the geometric center equipartition setting.

And as shown in fig. 2, the concave surfaces of the three cutting strips 501 are arranged in a clockwise or counterclockwise direction. The end is outwards equipped with extension piece 502 to the cutting strip 501 divergence end, and extension piece 502 is partial to the convex surface setting of cutting strip 501 to it is less than 90o to diverge the contained angle of the tangent line of end with cutting strip 501. The utility model discloses a set up curved cutting strip and extension, at the back flush in-process, along with rivers upflow, spiral cutterbar is rotated by the rivers drive, increases the collision cutting that the haydite packed to extension can be more thorough cuts the haydite packing.

As shown in fig. 1, the utility model discloses a still be equipped with water distribution gas distribution pipeline 6 between air inlet 2, water inlet 3 and the packing layer 101, water distribution gas distribution pipeline 6 is equipped with cavity 601 and a plurality of recoil mouth 602 that communicate with cavity 601, and recoil mouth 602 is towards packing layer 101. Through setting up water distribution gas distribution pipeline 6, can be more even with gas and water distribution, can wash the packing layer better more evenly. Preferably, the plurality of backflushing openings 602 are uniformly arranged on the cavity 601.

As shown in fig. 1, the lower side of the packing layer 101 of the present invention is further provided with a vibration component 7, and the vibration component 7 comprises a vibrating bar and a vibration motor. Through setting up the vibration subassembly, can strengthen the washing effect to set up the vibration subassembly, the filler that hardens disperses more easily.

The utility model discloses a theory of operation: the utility model discloses a back flush unit is started after black and odorous water body treatment of a period of time is carried out in the biological filler pond, at first let in gas and carry out the gas washing, break up the filler, through the shearing action each other between the filler and the auxiliary action of vibration subassembly, expand the filler, then let in gas and water and carry out the gas washing, in the gas washing process, the spiral cutter along with rivers impact, reciprocate the rotation in the biological filler pond, carry out more thorough cutting with the haydite packing layer, utilize rivers to discharge impurity and fungus layer between the filler through the delivery port; the process of air washing-air water washing can be carried out for a plurality of times.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. A back washing device for porous ceramic particles is used for back washing a biological filter provided with a packing layer, and is characterized by comprising:

2. The backwashing device for the porous ceramic particles of claim 1, wherein the concave surfaces of the three cutting strips are arranged in a clockwise or counterclockwise direction.

3. The backwashing device for the porous ceramic particles of claim 1, wherein the diverging end of the cutting strip is outwardly provided with an extension, and the extension is biased toward the convex surface of the cutting strip and forms an angle of less than 90 ° with a tangent line of the diverging end of the cutting strip.

4. The backwashing device for the porous ceramic particles of claim 1, wherein a water and gas distribution pipeline is further arranged between the gas inlet, the water inlet and the packing layer, the water and gas distribution pipeline is provided with a cavity and a plurality of backwashing ports communicated with the cavity, and the backwashing ports face the packing layer.

5. The backwashing device for the porous ceramic particles of claim 4, wherein the plurality of backwashing holes are uniformly arranged on the cavity.

6. The backwashing device for the porous ceramic particles of claim 1, wherein the air inlet is connected with an air pump.

7. The backwashing device for the porous ceramic particles of claim 1, wherein the water inlet is connected with a high-pressure water pump.

8. The backwashing device for the porous ceramic particles of claim 1, wherein a vibration assembly is further provided at a lower side of the packing layer.

9. The backwashing device for the porous ceramic particles of claim 8, wherein the vibration unit comprises a vibration rod and a vibration motor.