CN213112713U

CN213112713U - Back flush system of upflow type denitrification filter

Info

Publication number: CN213112713U
Application number: CN202021808640.2U
Authority: CN
Inventors: 江强
Original assignee: Jiangxi Oasis Water Environment Comprehensive Treatment Co ltd
Current assignee: Jiangxi Oasis Water Environment Comprehensive Treatment Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-05-04
Anticipated expiration: 2030-08-26

Abstract

The utility model relates to the technical field of backwashing of a filter tank, and discloses a backwashing system of an upflow denitrification filter tank, which solves the problems that the backwashing system of the upflow denitrification filter tank on the current market has complicated operation steps, is easy to block and has low backwashing efficiency, and comprises a filter tank body, a filter plate is fixedly connected between two sides of an inner cavity of the filter tank body, the top of the filter plate is fixedly connected with a filter material, the middle part of one side of the filter tank body is fixedly connected with a power air pump, the output end of the power air pump is fixedly connected with an outlet pipe, and one end of the outlet pipe, which is far away from the power air pump, is fixedly connected with an aeration pipe, and the backwashing system of the upflow denitrification filter tank can wash fine particles or sludge covered on the surface of the filter layer or in gaps to the surface of the filter tank to prevent the filter layer from being blocked, and also adopts double, greatly improving the efficiency of the back washing of the filter.

Description

Back flush system of upflow type denitrification filter

Technical Field

The utility model belongs to the technical field of the back flush of filtering pond, specifically be a back flush system in upflow denitrification filtering pond.

Background

The oasis denitrification filter tank technology is a novel and efficient denitrification filter tank technology developed by combining a gas-water washing and water distribution mode and automatic control and absorbing the advantages of processes such as a denitrification filter tank, a flap filter tank, a non-blocking aeration biological filter tank, an upward flow filter tank (also called a reverse filter tank) and the like on the basis of a reverse particle size filtering theory.

The existing backwashing system of the upflow denitrification filter has complicated operation steps, gaps in the filter layer can be gradually blocked by fine particles or sludge, the water passing capacity is influenced, the granular sludge in the filter layer is not easy to remove, the treatment capacity of the filter can be weakened for a long time, and the backwashing efficiency is low.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a backwash system in upflow denitrification filtering pond, the effectual backwash system operating procedure who has solved current upflow denitrification filtering pond among the above-mentioned background art is loaded down with trivial details, takes place easily to block up and the problem of back flush inefficiency.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a back flush system in upflow denitrification filtering pond, includes the filtering ponds body, fixedly connected with filter plate between the both sides of filtering ponds body inner chamber, the top fixedly connected with filter material of filter plate, the middle part fixedly connected with of filtering ponds body one side have the power air pump, the output fixedly connected with outlet duct of power air pump, the one end fixedly connected with aeration pipe of power air pump is kept away from to the outlet duct, the one end of aeration pipe runs through and extends to the inside of filtering ponds body, the aeration head has been seted up to the surface equidistance that the aeration pipe is located filtering ponds body inside.

Preferably, the top of one side of the filter body is fixedly connected with a raw water inlet pipe, the top of the other side of the filter body is fixedly connected with a back washing inlet pipe, and the surface of the back washing inlet pipe is provided with a back washing inlet valve.

Preferably, the bottom of one side of the filter tank body is communicated with a drain pipe, and one end of the drain pipe penetrates through and extends to the outside of the filter tank body.

Preferably, the middle part of one side of the filter body is fixedly connected with a baffle plate, and the baffle plate is positioned above the power air pump.

Preferably, the filter material comprises a quartz sand layer and a smokeless coal layer, and the smokeless coal layer is positioned above the quartz sand layer.

Preferably, the surface of the filter plate is provided with micropores.

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

(1) during operation, the filter tank body, the filter plate, the filter material, the power air pump, the air outlet pipe, the aeration head, the raw water inlet pipe, the back flush water inlet valve and the drain pipe are arranged, so that the power of the power air pump conveys air into the aeration pipe through the air outlet pipe, then the aeration head is utilized to lift the air through micropores, and the back flush operation of impurities in the filter material is completed, and the back flush system of the whole up-flow denitrification filter tank can flush fine particles or sludge covered on the surface or in gaps of the filter layer to the surface of the filter tank, so as to prevent the filter layer from being blocked;

(2) during work, a raw water inlet pipe is closed, then a drain pipe is opened, water above a filter layer is discharged, the water level on the filter layer is controlled to be reduced to the distance from the top surface of the filter layer, then a power air pump is started, the power air pump can convey air to the interior of an aeration pipe through an air outlet pipe, then the air forms an air cushion layer below the filter plate, the air overflows from micropores on the surface of the filter plate, uniform small bubbles are formed at the bottom of the filter layer and combined into a large air bag in the rising process, and filter materials in the filter layer are vibrated and scrubbed; and then, reducing the strength of the air flow, opening a back flushing water inlet valve, introducing back flushing water flow, after the back flushing water enters, slowly raising the water level on the filter layer, controlling the water level on the filter layer not to exceed the tank top of the filter tank body, and finally, uniformly discharging the eluted sewage out of the filter tank by using the back flushing water.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of the filter material of the present invention;

FIG. 3 is a schematic view of the filter plate of the present invention;

in the figure: 1. a filter tank body; 2. filtering the plate; 3. filtering the material; 301. a quartz sand layer; 302. a smokeless coal seam; 4. a power air pump; 5. an air outlet pipe; 6. an aeration pipe; 7. an aeration head; 8. a raw water inlet pipe; 9. backwashing the water inlet pipe; 10. backwashing the water inlet valve; 11. a drain pipe; 12. a baffle plate; 13. and (4) micro-pores.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Embodiment one, given by fig. 1, the utility model discloses, including filter body 1, fixedly connected with filter plate 2 between the both sides of filter body 1 inner chamber, utilize filter plate 2 to be convenient for support filter material 3, the top fixedly connected with filter material 3 of filter plate 2, the middle part fixedly connected with of filter body 1 one side has power air pump 4, utilize power air pump 4 to be convenient for improve back flush efficiency, power air pump 4's output fixedly connected with outlet duct 5, power air pump 4's one end fixedly connected with aeration pipe 6 is kept away from to outlet duct 5, the one end of aeration pipe 6 runs through and extends to filter body 1's inside, aeration head 7 has been seted up to aeration pipe 6 the surperficial equidistance that is located filter body 1 inside, utilize a plurality of aeration heads 7 to be convenient for improve whole filter body 1.

In the second embodiment, based on the first embodiment, as shown in fig. 1, a raw water inlet pipe 8 is fixedly connected to the top of one side of the filter tank body 1, a backwash water inlet pipe 9 is fixedly connected to the top of the other side of the filter tank body 1, a backwash water inlet valve 10 is arranged on the surface of the backwash water inlet pipe 9, and the backwash operation of the whole filter tank body 1 is facilitated by using the backwash water inlet valve 10.

In the third embodiment, based on the first embodiment, as shown in fig. 1, a drain pipe 11 is communicated with the bottom of one side of the filter tank body 1, one end of the drain pipe 11 penetrates and extends to the outside of the filter tank body 1, and the water quantity in the whole filter tank body 1 is conveniently controlled by using the drain pipe 11.

In the fourth embodiment, based on the first embodiment, as shown in fig. 1, a baffle 12 is fixedly connected to the middle of one side of the filter tank body 1, the baffle 12 is located above the dynamic air pump 4, and the dynamic air pump 4 is protected by the baffle 12.

In the fifth embodiment, based on the first embodiment, as shown in fig. 2, the filter material 3 includes a quartz sand layer 301 and a smokeless coal layer 302, and the smokeless coal layer 302 is located above the quartz sand layer 301, so that the double-layer filter material 3 is used to improve the filterability of the sewage inside the whole filter tank body 1.

In the sixth embodiment, on the basis of the first embodiment, as shown in fig. 3, the surface of the filter plate 2 is provided with micropores 13, and the aeration head 7 is convenient for aeration treatment of the filter material 3 by using the micropores 13.

The working principle is as follows: when the filter material cleaning device works, the raw water inlet pipe 8 is closed firstly, then the drain pipe 11 is opened, water above the filter layer is discharged, the water level on the filter layer is controlled to be reduced to the distance from the top surface of the filter layer, then the power air pump 4 is started, the power air pump 4 can convey air to the interior of the aeration pipe 6 through the air outlet pipe 5, then the air forms an air cushion layer below the filter plate 2, the air overflows from micropores 13 on the surface of the filter plate 2, uniform small bubbles are formed at the bottom of the filter layer and combined into a large air bag in the rising process, and the filter material 3 in the filter layer is vibrated and scrubbed; and then, reducing the strength of the air flow, opening a backwashing water inlet valve 10, introducing backwashing water flow, after the backwashing water enters, slowly raising the water level on the filter layer, controlling the water level on the filter layer not to exceed the tank top of the filter tank body 1, and finally, uniformly discharging the eluted sewage out of the filter tank by using the backwashing water.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides a backwash system of upflow denitrification filtering pond, includes filtering ponds body (1), its characterized in that: fixedly connected with filter plate (2) between the both sides of filter cell body (1) inner chamber, the top fixedly connected with filter material (3) of filter plate (2), the middle part fixedly connected with of filter cell body (1) one side has power air pump (4), the output fixedly connected with outlet duct (5) of power air pump (4), the one end fixedly connected with aeration pipe (6) of power air pump (4) are kept away from in outlet duct (5), the one end of aeration pipe (6) runs through and extends to the inside of filter cell body (1), aeration head (7) have been seted up to aeration pipe (6) the surface equidistance that is located filter cell body (1) inside.

2. The backwashing system of the upflow denitrification filter according to claim 1, wherein: the water filter is characterized in that a raw water inlet pipe (8) is fixedly connected to the top of one side of the filter tank body (1), a backwashing water inlet pipe (9) is fixedly connected to the top of the other side of the filter tank body (1), and a backwashing water inlet valve (10) is arranged on the surface of the backwashing water inlet pipe (9).

3. The backwashing system of the upflow denitrification filter according to claim 1, wherein: the bottom of one side of the filter tank body (1) is communicated with a drain pipe (11), and one end of the drain pipe (11) penetrates through and extends to the outside of the filter tank body (1).

4. The backwashing system of the upflow denitrification filter according to claim 1, wherein: the middle part of one side of the filter tank body (1) is fixedly connected with a baffle (12), and the baffle (12) is positioned above the power air pump (4).

5. The backwashing system of the upflow denitrification filter according to claim 1, wherein: the filter material (3) comprises a quartz sand layer (301) and a smokeless coal layer (302), wherein the smokeless coal layer (302) is located above the quartz sand layer (301).

6. The backwashing system of the upflow denitrification filter according to claim 1, wherein: the surface of the filter plate (2) is provided with micropores (13).