CN215049002U - Upflow type aeration biological filter - Google Patents

Abstract

The utility model discloses an upflow biological aerated filter, including the biological filter body, biological filter body bottom fixed connection inlet tube, inlet tube outer wall fixed connection water intaking valve, inlet tube middle part fixed connection back flush pipe, back flush pipe outer wall fixedly connected with back flush valve, the biological filter body left and right sides is fixedly connected with delivery port and back flush delivery port respectively, delivery port and the equal fixedly connected with outlet valve of back flush delivery port outer wall, filter material mechanism still includes first filter bed, second filter bed and third filter bed. The utility model discloses in, open the water intaking valve, inside sewage got into biological filter body through the inlet tube, along with the sewage water level risees, sewage was held back through first precoat, second precoat and third precoat respectively, to the suspended solid in the sewage because the hole of filter material mechanism is big-end-up's little structure, makes its depth of penetration dark, improves whole filtering pond and contains dirty ability, reduces the back flush number of times simultaneously.

Description

Upflow type aeration biological filter

Technical Field

The utility model belongs to the technical field of sewage treatment, in particular to an upflow biological aerated filter.

Background

Sewage treatment is a process of purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and increasingly enters the daily life of common people, and a filter tank is adopted in the sewage treatment to remove fine suspended substances in the sewage, particularly to remove some fine suspended particles and colloidal substances which cannot be removed by biochemical treatment and coagulating sedimentation. At present, the filter is widely used as a three-stage treatment means for further treating the effluent of the second-stage treatment; or as the pretreatment of advanced treatment such as activated carbon adsorption, ion exchange, electrodialysis, reverse osmosis, membrane separation and the like, and the filter tank has a certain removal effect on turbidity, COD, BOD, phosphorus, heavy metals, bacteria, viruses and the like besides the removal effect on suspended substances. In the urban sewage treatment, the filter tank becomes an indispensable treatment unit in a water treatment and reuse system;

the sewage of the biological filter in the prior art generally enters through the top of the filter, is discharged from the bottom of the filter after the filtration is finished, and needs to be backwashed for many times after the treatment is finished, thus needing more manpower and material resources.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that sewage in a biological filter tank generally enters through the top of the filter tank, is discharged from the bottom of the filter tank after filtration is finished, and needs to be backwashed for multiple times after treatment is finished, and more manpower and material resources are needed, the organic cotton regenerated polyester elastic double-layer cloth is provided.

The utility model adopts the technical scheme as follows: an up-flow aeration biological filter, which comprises a biological filter body, wherein the bottom of the biological filter body is fixedly connected with a water inlet pipe, the outer wall of the water inlet pipe is fixedly connected with a water inlet valve, the middle part of the water inlet pipe is fixedly connected with a back-flushing pipe, the outer wall of the back-flushing pipe is fixedly connected with a back-flushing valve, the top of the biological filter body is fixedly connected with an aeration mechanism and a back-flushing air inlet mechanism, the air outlets of the aeration mechanism and the back-flushing air inlet mechanism are respectively and fixedly connected with an aeration pipe and a back-flushing air inlet pipe, the aeration pipe and the back-flushing air inlet pipe are positioned at the outer wall of one end of the bottom in the biological filter body, the interior of the biological filter body is fixedly connected with a bearing layer and a filter material mechanism, the left side and the right side of the biological filter body are respectively and fixedly connected with a water outlet and a back-flushing water outlet, the outer walls of the water outlet and the back-flushing water outlet are both fixedly connected with water outlet valves, the filter material mechanism further comprises a first filter material layer, a second filter material layer and a third filter material layer.

In a preferred embodiment, the second filter material layer is located on top of the third filter material layer, the first filter material layer is located on top of the second filter material layer, the particle size of the first filter material layer is 16-32mm, the particle size of the second filter material layer is 4-12mm, and the particle size of the third filter material layer is 2-4 mm.

In a preferred embodiment, the lower ends of the aeration pipe and the backwashing air inlet pipe are both positioned at the bottom in the biological filter body.

In a preferred embodiment, the filter material mechanism is located on top of the support layer.

In a preferred embodiment, a water distribution system is arranged at the bottom of the biological filter body, and the top of the water inlet pipe is connected with the water distribution system.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, open the water intaking valve, inside sewage got into biological filter body through the inlet tube, along with the sewage water level risees, sewage passes through first precoat respectively, second precoat and third precoat, hold back the suspended solid in the sewage, open aeration equipment simultaneously, oxygen gets into in the filter material mechanism through the aeration pipe, organic matter in the suspended solid is got rid of through autotrophy aerobic microorganism's oxidation, handle and finish the back and discharge through the outlet, because the hole of filter material mechanism is big-end-up little structure, it is dark to make it pierce through the degree of depth, improve whole filtering pond and contain dirty ability, reduce the back flush number of times simultaneously.

2. The utility model discloses in, after the processing finishes, close the water intaking valve, open back flush valve and backwash air inlet mechanism, inside the backwash water got into the biological filter body through the backwash pipe, backwash air inlet mechanism was at backwash aquatic injection air simultaneously, carries out the backwash of air water simultaneously, improves backwash efficiency.

Drawings

FIG. 1 is a schematic diagram of an upflow biological aerated filter of the utility model;

FIG. 2 is a schematic structural diagram of a filtering material mechanism in the upflow biological aerated filter of the utility model.

The labels in the figure are: 1-a biological filter body, 2-a water inlet pipe, 3-a water inlet valve, 4-a backwashing pipe, 5-a backwashing valve, 6-an aeration mechanism, 7-a backwashing air inlet mechanism, 8-an aeration pipe, 9-a backwashing air inlet pipe, 10-an air outlet nozzle, 11-a supporting layer, 12-a filter material mechanism, 13-a water outlet, 14-a backwashing water outlet, 15-a water outlet valve, 16-a first filter material layer, 17-a second filter material layer and 18-a third filter material layer.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are 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 efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the upflow biological aerated filter comprises a biological filter body 1, a water distribution system is arranged at the bottom of the biological filter body 1, the top of a water inlet pipe 2 is connected with the water distribution system, the bottom of the biological filter body 1 is fixedly connected with a water inlet pipe 2, the outer wall of the water inlet pipe 2 is fixedly connected with a water inlet valve 3, the middle part of the water inlet pipe 2 is fixedly connected with a backwash pipe 4, the outer wall of the backwash pipe 4 is fixedly connected with a backwash valve 5, the top of the biological filter body 1 is fixedly connected with an aeration mechanism 6 and a backwash air inlet mechanism 7, after the treatment is finished, the water inlet valve 3 is closed, the backwash valve 5 and the backwash air inlet mechanism 7 are opened, backwash water enters the biological filter body 1 through the backwash pipe 4, simultaneously the backwash air inlet mechanism 7 injects air into backwash water, the air water and the air-water backwash are carried out, the backwash efficiency is improved, the air outlets of the aeration mechanism 6 and the backwash air inlet mechanism 7 are respectively and fixedly connected with an aeration pipe 8 and a backwash air inlet pipe 9, the lower ends of an aeration pipe 8 and a backwashing air inlet pipe 9 are both positioned at the bottom in the biological filter body 1, the outer wall of one end of the aeration pipe 8 and the backwashing air inlet pipe 9 positioned at the bottom in the biological filter body 1 is fixedly connected with an air outlet nozzle 10, the interior of the biological filter body 1 is fixedly connected with a bearing layer 11 and a filter material mechanism 12, the filter material mechanism 12 is positioned at the top of the bearing layer 11, the left side and the right side of the biological filter body 1 are respectively fixedly connected with a water outlet 13 and a backwashing water outlet 14, the outer walls of the water outlet 13 and the backwashing water outlet 14 are both fixedly connected with a water outlet valve 15, the filter material mechanism 12 further comprises a first filter material layer 16, a second filter material layer 17 and a third filter material layer 18, the second filter material layer 17 is positioned at the top of the third filter material layer 18, the first filter material layer 16 is positioned at the top of the second filter material layer 17, the particle size of the first filter material layer 16 is 16-32mm, the particle size of the second filter material layer 17 is 4-12mm, the particle size of the third filter material layer 18 is 2-4mm, the water inlet valve 3 is opened, sewage enters the biological filter body 1 through the water inlet pipe 2, the sewage respectively passes through the first filter material layer 16, the second filter material layer 17 and the third filter material layer 18 along with the rise of the sewage water level, suspended matters in the sewage are intercepted, the aeration mechanism 6 is opened simultaneously, oxygen enters the filter material mechanism 12 through the aeration pipe 8, organic matters in the suspended matters are removed through the oxidation of autotrophic aerobic microorganisms, the treated sewage is discharged through the water outlet 13, and the pore of the filter material mechanism 12 is of a structure with a large upper part and a small lower part, so that the penetration depth of the filter material mechanism is deep, the dirt-containing capacity of the whole filter is improved, and the backwashing frequency is reduced.

The working principle is as follows: opening a water inlet valve 3, enabling sewage to enter the interior of the biological filter body 1 through a water inlet pipe 2, enabling the sewage to pass through a first filter material layer 16, a second filter material layer 17 and a third filter material layer 18 respectively along with the rise of the water level of the sewage, intercepting suspended matters in the sewage, simultaneously opening an aeration mechanism 6, enabling oxygen to enter a filter material mechanism 12 through an aeration pipe 8, removing organic matters in the suspended matters through oxidation of autotrophic aerobic microorganisms, and discharging the treated sewage through a water outlet 13, wherein the penetration depth of the filter material mechanism 12 is deep due to the fact that the pores of the filter material mechanism 12 are of a structure with a large upper part and a small lower part, the dirt-containing capacity of the whole filter is improved, and the backwashing frequency is reduced;

after the treatment is finished, the water inlet valve 3 is closed, the backwashing valve 5 and the backwashing air inlet mechanism 7 are opened, backwashing water enters the biological filter body 1 through the backwashing pipe 4, and simultaneously the backwashing air inlet mechanism 7 injects air into the backwashing water to perform air-water backwashing, so that the backwashing efficiency is improved.

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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (5)

1. Upflow biological aerated filter, including biological filter body (1), its characterized in that: the biological filter comprises a biological filter body (1), wherein a water inlet pipe (2) is fixedly connected to the bottom of the biological filter body (1), a water inlet valve (3) is fixedly connected to the outer wall of the water inlet pipe (2), a backwashing pipe (4) is fixedly connected to the middle of the water inlet pipe (2), a backwashing valve (5) is fixedly connected to the outer wall of the backwashing pipe (4), an aeration mechanism (6) and a backwashing air inlet mechanism (7) are fixedly connected to the top of the biological filter body (1), an aeration pipe (8) and a backwashing air inlet pipe (9) are respectively fixedly connected to the air outlets of the aeration mechanism (6) and the backwashing air inlet mechanism (7), the aeration pipe (8) and the backwashing air inlet pipe (9) are located in the biological filter body (1), an air outlet nozzle (10) is fixedly connected to the outer wall of the bottom of the biological filter body (1), a supporting layer (11) and a filtering material mechanism (12) are fixedly connected to the inside the biological filter body (1), and a water outlet (13) and a water outlet are respectively fixedly connected to the left side and the left side of the biological filter body (1) The filter material mechanism (12) comprises a port (14), wherein the outer walls of the water outlet (13) and the back washing water outlet (14) are fixedly connected with water outlet valves (15), and the filter material mechanism further comprises a first filter material layer (16), a second filter material layer (17) and a third filter material layer (18).

2. An upflow biological aerated filter as in claim 1, in which: the second filter material layer (17) is located on the top of the third filter material layer (18), the first filter material layer (16) is located on the top of the second filter material layer (17), the particle size of the first filter material layer (16) is 16-32mm, the particle size of the second filter material layer (17) is 4-12mm, and the particle size of the third filter material layer (18) is 2-4 mm.

3. An upflow biological aerated filter as in claim 1, in which: the lower ends of the aeration pipe (8) and the backwashing air inlet pipe (9) are both positioned at the bottom in the biological filter body (1).

4. An upflow biological aerated filter as in claim 1, in which: the filter material mechanism (12) is positioned at the top of the bearing layer (11).

5. An upflow biological aerated filter as in claim 1, in which: the bottom of the biological filter body (1) is provided with a water distribution system, and the top of the water inlet pipe (2) is connected with the water distribution system.

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