CN212894339U

CN212894339U - Aeration biological filter device with middle inlet and upper and lower outlet

Info

Publication number: CN212894339U
Application number: CN202021151488.5U
Authority: CN
Inventors: 李琼
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-04-06
Anticipated expiration: 2030-06-19

Abstract

The utility model belongs to the technical field of sewage treatment, and discloses a middle-inlet upper-lower-outlet water aeration biological filter tank device, which comprises a tank body, wherein a water inlet main channel is arranged at the middle position of the tank body, a first water distribution channel is arranged at one side of the water inlet main channel, a light filter material area is arranged at one side of the first water distribution channel, which is far away from the water inlet main channel, a first water outlet channel is arranged at one side of the light filter material area, which is far away from the first water distribution channel, a second water distribution channel is arranged at one side of the water inlet main channel, which is far away from the water inlet main channel, a heavy filter material area is arranged at one side of the heavy filter material area, which is far away from the second water distribution channel, a second water outlet channel is arranged at one side of the heavy filter material area, which is far away from the second water distribution channel, the utility model ensures the uniformity of up-flow type and down-flow type water inlet on the whole structure, and weir flows at two, the growth thickness of the biological film is uniform, and the biological film can stably run in the later period.

Description

Aeration biological filter device with middle inlet and upper and lower outlet

Technical Field

The utility model belongs to the technical field of sewage, concretely relates to utility model well advance upper and lower play water bological aerated filter device.

Background

A Biological Aerated Filter (BAF) is improved on the basis of a common biological filter, is a novel sewage treatment process by a biomembrane method, is developed in Europe and America at the end of the 80 s, has the maximum scale of dozens of thousands of tons per day, and is developed into a novel filter which can remove nitrogen and phosphorus and intercept suspended matters integrally.

The filter material of the aeration biological filter tank comprises a light filter material and a heavy filter material, the light filter material is a BIOSTYR process, the specific gravity of the filter material is less than 1, the aeration biological filter tank is an up-flow biological filter tank and has the advantages of reliable operation, high automation degree, good water quality of outlet water, strong impact resistance and energy consumption saving, the bottom of the filter tank is provided with a water inlet pipe and a sludge discharge pipe, the middle upper part of the filter tank is a filler layer, a concrete baffle plate provided with a filter head is arranged above the filter bed for preventing the filter material from losing, and the filter head can be detached from the plate surface without emptying the filter bed, so.

The heavy filter material biological aerated filter adopts filter materials with the specific gravity larger than 1 as carriers of microorganisms, the bottom of the biological aerated filter is provided with a sludge discharge pipe, and a filter head and an aeration pipe are arranged on the biological aerated filter.

The existing common biological aerated filter occupies a large area and is not suitable for treating sewage with large water amount; the filter material is easy to block, the accumulation of the biological membrane on the surface of the filter tank is excessive, filter tank flies are easy to generate, the environment condition is worsened, the operation and management cost is high, and the trend of gradual elimination exists, so that the biological aerated filter which is particularly suitable for medium-inlet and low-outlet water in a sewage treatment plant and has small floor area and needs to be modified is very necessary.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a well water aeration biological filter device about getting into to solve current area big, unsuitable sewage that the handling capacity is big, the filter material easily blocks up, the biomembrane accumulation on filter surface is too much easily produces the filter fly, worsens the environment, the high problem of operation administrative cost.

In order to achieve the above object, the utility model provides a following technical scheme: the aeration biological filter device comprises a filter body, wherein a water inlet main channel is arranged in the middle of the filter body, a first water distribution channel is arranged on one side of the water inlet main channel, a light filter material area is arranged on one side, away from the water inlet main channel, of the first water distribution channel, a first water outlet channel is arranged on one side, away from the first water distribution channel, of the light filter material area, a second water distribution channel is arranged on the side, away from the first water distribution channel, of the water inlet main channel, a heavy filter material area is arranged on one side, away from the water inlet main channel, of the second water distribution channel, and a second water outlet channel is arranged on one side, away from the second water distribution channel, of the heavy filter material area.

Preferably, a water inlet pipe is arranged at the water inlet of the main water inlet channel, a first water drainage pipe is arranged at the water outlet of the first water outlet channel, and a second water drainage pipe is arranged at the water outlet of the second water outlet channel.

Preferably, light filter material district bottom is equipped with first sludge discharge pipe, be equipped with a plurality of sludge hoppers on the first sludge discharge pipe, heavy filter material district bottom is equipped with the second sludge discharge pipe, be equipped with a plurality of sludge hoppers on the second sludge discharge pipe.

Preferably, a first aeration pipe is arranged above the first sludge discharge pipe, a plurality of first aeration heads are arranged on the first aeration pipe, a second aeration pipe is arranged above the second sludge discharge pipe, and a plurality of second aeration heads are arranged on the second aeration pipe.

Preferably, a first slag discharge pipe is arranged above the first aeration pipe.

Preferably, the heavy filter material area is far away from the bottom of one side of the second water distribution channel and is provided with a second filter plate above the second aeration pipe, and the second filter plate is provided with a plurality of second long-handle filter heads.

Preferably, a sieve plate is arranged above the first slag discharging pipe and fixed on the wall of the structure.

Preferably, a first filter plate is installed at the top of one side, far away from the first water distribution channel, of the light filter material area, and a plurality of first long-handle filter heads are arranged on the first filter plate.

Compared with the prior art, the utility model, following beneficial effect has:

(1) the utility model discloses set up the total channel of intaking and the water distribution canal, guaranteed the steady operation on overall structure, ensured the degree of consistency that upflow and downflow type intake, the total channel both sides weir of intaking flows, has avoided producing the parallel force couple because of intaking from top to bottom, makes the intake of filtering pond more homogenization, makes the growth thickness of biomembrane even, makes later stage biomembrane steady operation.

(2) The utility model discloses the scum pipe has been set up to can open scum pipe discharge mud layer when the biomembrane thickness is not big, prolong back flush cycle, carry out the recoil elution to the biomembrane and fall behind, can utilize water pressure to concentrate and discharge in the scum pipe, avoided because the too thick environment that leads to of biomembrane worsens.

(4) The utility model discloses set up sieve and long handle filter head, avoided because the filter material is washed out outside the pond during back flush, avoided the jam in filtering pond, also convenient washs filter plate and long handle filter head.

Drawings

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

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of the bottom sludge discharge pipe of the present invention;

FIG. 4 is a cross-sectional view of the bottom sludge discharge pipe of the present invention;

in the figure: 1. a water inlet pipe; 2. a water inlet main channel; 3. a first water distribution channel; 4. a sieve plate; 5. a first aeration pipe; 6. a first aeration head; 7. a light filtering material area; 8. a first sludge discharge pipe; 9. a first filter plate; 10. a first long-handled filter head; 11. a first water outlet channel; 12. a first slag discharge pipe; 13. a first drain pipe; 14. a second water distribution channel; 15. a second aeration head; 16. a second aeration pipe; 17. a heavy filtering material area; 18. a second sludge discharge pipe; 19. a second filter plate; 20. a second long-handled filter head; 21. a second water outlet channel; 22. a second drain pipe; 23. a sludge hopper; 24. a tank body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-4, the present invention provides the following technical solutions: a middle-inlet upper-outlet water biological aerated filter device comprises a filter body 24, wherein a water inlet main channel 2 is arranged in the middle of the filter body 24 and used for storing sewage of a water inlet pipe and adjusting the water balance of the whole system, a first water distribution channel 3 is arranged on one side of the water inlet main channel 2 to ensure that the sewage entering the light filter material biological aerated filter is uniform, a light filter material area 7 is arranged on one side of the first water distribution channel 3 away from the water inlet main channel 2 and adopts a filter material with the specific gravity smaller than 1, the particle size of the light filter material is 2-4mm, the height of the filter material area is 1.6-2.0 m, a first water outlet channel 11 is arranged on one side of the light filter material area 7 away from the first water distribution channel 3 and used for collecting the sewage treated by discharging the light filter material, a second water distribution channel 14 is arranged on one side of the water inlet main channel 2 away from the first water distribution channel 3 to ensure that the sewage entering the heavy biological aerated filter material is uniform, a heavy, the filtering material with the specific gravity smaller than 1 is adopted, the particle size of the heavy filtering material is 3-5mm, the height of the filtering material area is 1.5-2.2 m, and a second water outlet channel 21 is arranged on one side of the heavy filtering material area 17 away from the second water distribution channel 14 and used for collecting and discharging sewage treated by the heavy filtering material.

Furthermore, a water inlet pipe 1 is arranged at a water inlet of the water inlet main channel 2, so that sewage enters the filter tank for treatment, a first water discharge pipe 13 is arranged at a water outlet of the first water outlet channel 11, so as to discharge filtered water in the first water outlet channel 11, and a second water discharge pipe 22 is arranged at a water outlet of the second water outlet channel 21, so as to discharge filtered water in the second water outlet channel 21.

Further, 7 bottoms in light filter material district are equipped with first sludge discharge pipe 8, be equipped with a plurality of sludge hoppers 23 on the first sludge discharge pipe 8, make the mud in the pond by the hydraulic effect by sludge hopper 23 collect in unison after through first sludge discharge pipe 8 discharge pond outside, heavy filter material district 17 bottoms are equipped with second sludge discharge pipe 18, also are equipped with a plurality of sludge hoppers 23 on the second sludge discharge pipe 18, make the mud in the pond by the hydraulic effect by sludge hopper 23 collect in unison after through second sludge discharge pipe 18 discharge pond outside.

Further, 8 tops of first sludge discharge pipe are equipped with first aeration pipe 5, be equipped with a plurality of first aeration heads 6 on the first aeration pipe 5, adopt disc aerator, give logical air in the filtering pond, make the microorganism can carry out aerobic motion, promote biological nitrogen and phosphorus removal, 18 tops of second sludge discharge pipe are equipped with second aeration pipe 16, be equipped with a plurality of second aeration heads 15 on the second aeration pipe 16, adopt disc aerator, lead to air in giving the filtering pond, make the microorganism can carry out aerobic motion, promote biological nitrogen and phosphorus removal.

Furthermore, a first slag discharge pipe 12 is arranged above the first aeration pipe 5 and used for discharging a sludge layer generated by suspended solids in the intercepted water of the sieve plate, so that the backwashing period is prolonged.

Furthermore, a second filter plate 19 is installed above the second aerator pipe 16 and at the bottom of the heavy filter material area 17 far from the second water distribution channel 14, and a plurality of second long-handle filter heads 20 are installed on the second filter plate 19 and used for further filtering of filtered water, and meanwhile, the second long-handle filter heads 20 are also very convenient to clean.

It is worth to say that the sieve plate 4 is arranged above the first slag discharge pipe 12, the sieve plate 4 is fixed on the wall of a structure and is in a grid shape, and the mesh aperture of the sieve plate is smaller than the particle size of the light filter material, so that the loss of the filter material is prevented.

Specifically, a first filter plate 9 is installed at the top of one side, far away from the first water distribution channel 3, of the light filter material area 7, a plurality of first long-handle filter heads 10 are installed on the first filter plate 9 and used for further filtering of filtered water, and meanwhile, the first long-handle filter heads 10 are also very convenient to clean.

The utility model discloses a theory of operation and use flow: through the combination of the up-flow type light filter material biological aerated filter and the down-flow type heavy filter material biological aerated filter, a sewage treatment structure which occupies small floor area, has low capital construction cost, lower operation and management cost and higher treatment efficiency can be provided for a sewage treatment plant which is limited in planning area, increases the treatment load of the water plant and needs to be modified by a treatment process; the pool body 24 comprises an upflow type light filter material aeration biological filter and a downflow type heavy filter material aeration biological filter, sewage enters a water inlet main channel 2 through a water inlet pipe 1 and simultaneously flows to two sides through a channel wall weir to enter a first water distribution channel 3 and a second water distribution channel 14, the sewage respectively enters the upflow type light filter material aeration biological filter and the downflow type heavy filter material aeration biological filter through the first water distribution channel 3 and the second water distribution channel 14, the sewage flowing to the upflow type light filter material aeration biological filter passes through a light filter material area 7 and then flows into a first water outlet channel 11 through a first long handle filter head 10 arranged on a first filter plate 9, the sewage flows out through a first water discharge pipe 13 on the side surface of the first water outlet channel 11, sludge is collected by a sludge hopper 23 under the hydraulic pressure effect and then enters the first sludge discharge pipe 8 to be discharged out of the pool, the sewage flowing to the downflow type heavy aeration biological filter passes through a heavy filter material area 17 and then flows into a second long handle filter head 20 arranged on a second filter plate 19, flows out through a second water discharge pipe 22 on the side surface of the second water outlet channel 21, and sludge enters the second sludge discharge pipe 18 to be discharged out of the pool after being collected by a sludge hopper 23 under the hydraulic pressure.

The utility model discloses though simple structure, it is extremely convenient in the operation management, to deciding the cycle and rinse and accomplish through automated control, moreover because the stability of the structure of filtering pond itself, its life cycle also can prolong, area is littleer than ordinary bological aerated filter, so the capital expenditure can be lower, and its treatment effeciency is than ordinary bological aerated filter greatly increased.

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 well advance upper and lower play water bological aerated filter device, includes cell body (24), its characterized in that: the intermediate position department of cell body (24) is equipped with into water main canal (2), the one side of intaking main canal (2) is equipped with first water distribution channel (3), one side that first water distribution channel (3) kept away from into water main canal (2) is equipped with light filter material district (7), one side that first water distribution channel (3) were kept away from in light filter material district (7) is equipped with first water outlet channel (11), one side that first water distribution channel (3) were kept away from in water main canal (2) is equipped with second water distribution channel (14), one side that second water distribution channel (14) were kept away from into water main canal (2) is equipped with heavy weight filter material district (17), one side that second water distribution channel (14) were kept away from in heavy weight filter material district (17) is equipped with second water outlet channel (21).

2. A medium inlet and outlet biological aerated filter device according to claim 1, wherein: the inlet water of the water inlet main channel (2) is provided with a water inlet pipe (1), the outlet of the first water outlet channel (11) is provided with a first water discharge pipe (13), and the outlet of the second water outlet channel (21) is provided with a second water discharge pipe (22).

3. A medium inlet and outlet biological aerated filter device according to claim 1, wherein: the bottom in light filter material district (7) is equipped with first sludge discharge pipe (8), be equipped with a plurality of sludge buckets (23) on first sludge discharge pipe (8), the bottom in heavy filter material district (17) is equipped with second sludge discharge pipe (18), also be equipped with a plurality of sludge buckets (23) on second sludge discharge pipe (18).

4. A medium inlet and outlet biological aerated filter device according to claim 3, wherein: the sludge treatment device is characterized in that a first aeration pipe (5) is arranged above the first sludge discharge pipe (8), a plurality of first aeration heads (6) are arranged on the first aeration pipe (5), a second aeration pipe (16) is arranged above the second sludge discharge pipe (18), and a plurality of second aeration heads (15) are arranged on the second aeration pipe (16).

5. A medium inlet and outlet water biological aerated filter device according to claim 4, characterized in that: a first slag discharge pipe (12) is arranged above the first aeration pipe (5).

6. A medium inlet and outlet biological aerated filter device according to claim 1, wherein: the heavy filter material area (17) is kept away from the bottom of second water distribution channel (14) one side and is located the top department of second aeration pipe (16) and installs second filter plate (19), install a plurality of second long handle filter heads (20) on second filter plate (19).

7. A medium inlet and outlet water biological aerated filter device according to claim 5, characterized in that: and a sieve plate (4) is arranged above the first slag discharging pipe (12), and the sieve plate (4) is fixed on the wall of a structure.

8. A medium inlet and outlet biological aerated filter device according to claim 1, wherein: a first filter plate (9) is installed at the top of one side, far away from the first water distribution channel (3), of the light filter material area (7), and a plurality of first long-handle filter heads (10) are installed on the first filter plate (9).