CN212476438U

CN212476438U - Sewage filtering device

Info

Publication number: CN212476438U
Application number: CN201922293794.6U
Authority: CN
Inventors: 林茂寒; 胡佳庆; 杨伟利
Original assignee: Wuhan United Fishing Machinery Equipment Co ltd
Current assignee: Wuhan United Fishing Machinery Equipment Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2021-02-05
Anticipated expiration: 2029-12-19

Abstract

The utility model relates to a sewage filtering device, which comprises a filter tank, a filtering baffle plate and a filter box, wherein the filter tank is communicated with the filter box, and the filtering baffle plate is arranged in the filter tank and is positioned at the communication part of the filter tank and the filter box; and the filter chamber and the filter box are both provided with biological fillers, and sewage enters the filter chamber and is purified by the biological fillers, then enters the filter box through the filtration of the filtering baffle, and flows out after being purified again by the biological fillers in the filter box so as to be recycled.

Description

Sewage filtering device

Technical Field

The utility model relates to a sewage filtration field especially relates to a sewage filtering device.

Background

In the aquaculture industry, the polluted water resource is recycled, and the method is a way for preventing sewage discharge and saving water resource. In the process of recycling water resources, the removal of various water-soluble harmful substances, particularly ammonia nitrogen which has strong toxicity to cultured organisms, is an important link. At present, the ammonia nitrogen concentration in the circulating water is controlled by a wet biological ball filter or an automatic rain type biological filter, and after the two methods are used for filtering, the situation that water-soluble harmful substances in the sewage are not filtered completely exists. That is, the conventional filter is not good for filtering water-soluble harmful substances in the sewage.

SUMMERY OF THE UTILITY MODEL

For overcoming the not good problem of filter effect of filter to water solubility harmful substance among the circulating water, the utility model provides a sewage filtering device.

The technical scheme of the utility model for solving the technical problems is to provide a sewage filtering device, which comprises a filtering pool, a filtering baffle plate and a filtering box, wherein the filtering pool is communicated with the filtering box, and the filtering baffle plate is arranged in the filtering pool and is positioned at the communication part of the filtering pool and the filtering box; and the filter chamber and the filter box are both provided with biological fillers, and sewage enters the filter chamber and is purified by the biological fillers, then enters the filter box through the filtration of the filtering baffle, and flows out after being purified again by the biological fillers in the filter box so as to be recycled.

Compared with the prior art, the utility model provides a sewage filtering device has following advantage:

through filtering in proper order of filtering pond, filtration baffle and filter box, can avoid the sewage filter effect not good, lead to the unable used repeatedly's condition.

Drawings

Fig. 1 is a schematic view of a three-dimensional mechanism of a sewage filtering apparatus according to a first embodiment of the present invention;

FIG. 2 is a schematic perspective view of the filter of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion B of FIG. 3;

FIG. 5 is a schematic perspective view of the filter box of FIG. 1;

description of reference numerals: 10. a sewage filtering device; 20. a filter chamber; 30. a filter box; 40. a filtering baffle; 201. A filter base plate; 202. a first filter side plate; 203. a second filter side plate; 204. a third filter side plate; 205. a fourth filter side plate; 2021. a water inlet; 206. a separator plate; 207. a sewage draining outlet; 21. a water inlet cavity; 22. an aeration cavity; 301. a bottom plate of the filter box; 302. a first filter box side plate; 303. a second filter box side plate; 304. A third filter box side plate; 305. a fourth filter box side plate; 3021. a water outlet; 306. a water diversion disc; 307. a water outlet plate; 308. a support frame; 3081. reinforcing ribs; 401. a water inlet space; 31. a water diversion cavity; 32. a filter chamber; 33. a water outlet cavity.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 3, the present invention provides a sewage filtering apparatus 10 for recycling sewage after filtering treatment, which comprises a filtering chamber 20, a filtering box 30 and a filtering baffle 40, wherein the filtering chamber 20 and the filtering box 30 are box bodies with an opening at one side, and biological fillers are disposed therein. The filter chamber 20 is communicated with the filter box 30, and the filtering baffle 40 is arranged in the filter chamber 20 and is positioned at the communication part of the filter chamber 20 and the filter box 30. After entering the filter tank 20, the sewage is purified by the biological filler in the filter tank 20, passes through the filtering baffle 40 and enters the filter box 30. The filtering baffle 40 blocks the fine solid particles, so that only liquid enters the filter box 30, is purified again by biological filler in the filter box 30, and finally flows out of the filter box 30, and the sewage is filtered into a harmless water source and can be recycled. The sewage flows out from the filter tank 30 after entering the filter tank 20, and is filtered by the biological filler in the filter tank 20, the filtering baffle 40 and the biological filler in the filter tank 30, so that the filtering times are increased, the sewage is filtered more thoroughly, and the problem of poor sewage filtering effect is avoided.

It should be noted that the biological filler is suspended in water, anaerobic bacteria grow inside the biological filler to generate nitrification reaction for denitrification, aerobic bacteria grow outside the biological filler to remove ammonia nitrogen and organic matters, and nitrification and denitrification processes exist simultaneously in the whole treatment process so as to achieve the purification effects of denitrifying sewage and decomposing organic matters. The type of the biological filler includes a granular filler made of inorganic ceramsite or quartz sand, an irregular porous filler with multi-surface free spheres, a honeycomb filler, and the like, and in this embodiment, the granular filler is preferred.

The biological filler is used for purifying the sewage, that is, denitrifying the sewage and decomposing organic substances.

It should be noted that the poor filtration effect means excessive organic matter and excessive ammonia nitrogen concentration in the sewage.

Specifically, the filter 20 includes a filter bottom plate 201, a first filter side plate 202, a second filter side plate 203, a third filter side plate 204, and a fourth filter side plate 205, and the first filter side plate 202, the second filter side plate 203, the third filter side plate 204, and the fourth filter side plate 205 are enclosed around the filter bottom plate 201 to form a box body with an opening at one side. The filter box 30 includes a filter box bottom plate 301, a first filter box side plate 302, a second filter box side plate 303, a third filter box side plate 304 and a fourth filter box side plate 305, and the first filter box side plate 302, the second filter box side plate 303, the third filter box side plate 304 and the fourth filter box side plate 305 are enclosed around the filter box bottom plate 301 to form a box body with an opening on one side.

The first filter side plate 202 is provided with a water inlet 2021, sewage enters the filter chamber 20 from the water inlet 2021, the second filter side plate 203 is communicated with the second filter box side plate 303 through a pipeline, so that the sewage can enter the filter box 30 from the filter chamber 20 through the pipeline, the first filter box side plate 302 is provided with a water outlet 3021, and the sewage enters the filter box 30 from the filter chamber 20 and then is discharged from the water outlet 3021. The filtering baffle 40 is arranged in the filter tank 20, is connected with the inner wall of the filter tank 20, and is enclosed into a water inlet space 401, and the water inlet space 401 is communicated with the filter box 30. Namely, the filtering baffle 40 is respectively connected with the second filter side plate 203, the third filter side plate 204 and the fourth filter side plate 205, and the filtering baffle 40, the second filter side plate 203, the third filter side plate 204 and the fourth filter side plate 205 are connected to enclose a water inlet space 401, and a pipeline communicated with the second filter side plate 203 is positioned in the water inlet space 401. Before entering the filter box 30, the sewage in the filter chamber 20 firstly enters the water inlet space 401 through the filter baffle 40, and then enters the filter box 30 through the pipeline.

It can be understood that the filtering baffle 40 is a filtering net, and forms an included angle with the horizontal plane after being connected with the second filter side plate 203, the third filter side plate 204 and the fourth filter side plate 205. When sewage when filtering baffle 40, the solid waste in the sewage is kept off by filtering baffle 40, because filtering baffle 40 is the contained angle with the level, the solid waste who is kept off in the sewage can receive gravity to influence, sinks in sewage to the condition that filtering baffle 40 is blockked up has been avoided. Preferably, the included angle is 0 ° to 45 °.

The solid waste includes solid impurities insoluble in water, such as silt and stone.

It should be noted that, in the present embodiment, the second filter side plate 203 and the second filter tank side plate 303 are integrated, and in other embodiments, the second filter side plate 203 and the second filter tank side plate 303 may be two independent side plates.

It should be noted that the connection between the filtering baffle 40 and the second filter side plate 203, the third filter side plate 204, and the fourth filter side plate 205 may be a non-detachable connection in a welding manner, or a detachable connection in a sliding groove, a screw, a clamping manner, or the like, for example, the filtering baffle 40 is inserted into a clamping groove formed in the second filter side plate 203, the third filter side plate 204, and the fourth filter side plate 205. Preferably, the filter baffle 40 is detachably connected with the second filter side plate 203, the third filter side plate 204 and the fourth filter side plate 205, so that the filter baffle 40 can be cleaned conveniently.

In some embodiments, the filter bottom plate 201, the first filter side plate 202, the second filter side plate 203, the third filter side plate 204, and the fourth filter side plate 205 may be integrally formed, and the filter box bottom plate 301, the first filter box side plate 302, the second filter box side plate 303, the third filter box side plate 304, and the fourth filter box side plate 305 may be integrally formed.

Referring to fig. 2-3, the filter chamber 20 further includes a partition plate 206 and a drain outlet 207, the partition plate 206 is provided with a through hole (not shown) disposed in the filter chamber 20 and connected to the first filter chamber side plate 202, the second filter chamber side plate 203, the third filter chamber side plate 204 and the fourth filter chamber side plate 205, so as to divide the filter chamber 20 into a water inlet chamber 21 and an aeration chamber 22, and the water inlet chamber 21 is communicated with the aeration chamber 22 through the through hole. The water inlet 2021 is communicated with the water inlet cavity 21, the biological filler is positioned in the water inlet cavity 21, the aeration cavity 22 is internally provided with an air pipe (not shown) which is communicated with an external source and injects air into the sewage to increase the oxygen content in the sewage and stir the sewage, thereby promoting the reaction between the biological filler and the sewage. The sewage outlet 207 is communicated with the aeration chamber 22, and when sewage passes through the filtering baffle 40, solid waste is stopped by the filtering baffle 40, sinks into the aeration chamber 22 from the water inlet chamber 21 through the through hole, and is discharged through the sewage outlet 207.

Referring to fig. 3-5, the filter box 30 further includes a water diversion disc 306 and a water outlet plate 307, the water diversion disc 306 and the water outlet plate 307 are both located in the filter box 30, the filter box 30 is divided into a water diversion cavity 31, a filter cavity 32 and a water outlet cavity 33, the water outlet port 3021 is communicated with the water outlet cavity 33, the water inlet space 401 is communicated with the water diversion cavity 31 through a pipeline, and the biological filler is located in the filter cavity 32. After being filtered by the filtering baffle 40, the sewage enters the water diversion cavity 31 from the pipeline, then enters the filtering cavity 32 through the water diversion disc 306, is subjected to denitrification and organic matter decomposition purification again by utilizing the biological filler in the filtering cavity 32, finally enters the water outlet cavity 33 through the water outlet plate 307, and flows out from the water outlet 3021.

Specifically, the effect of diversion disk 306 is to divide into the water curtain from the sewage that the pipeline flowed into in the diversion chamber 31, and its structure is for setting up many water conservancy diversion passageways on diversion disk 306, and sewage enters into diversion disk 306 after, flows out from many water conservancy diversion passageways to play the reposition of redundant personnel, the water conservancy diversion effect of rivers, thereby make the sewage that flows into filter chamber 32 from diversion chamber 31 form the water curtain. The water outlet plate 307 is also provided with a through hole (not shown), and the sewage in the filter cavity 32 flows into the water outlet cavity 33 through the through hole after being purified again by the biological filler in the filter cavity 32, and flows out from the water outlet for recycling.

It will be appreciated that the purpose of the outlet plate 307 is to position the biological filler from the filter chamber 32 into the outlet chamber 33.

Further, the filter box 30 further includes a support frame 308, and the support frame 308 is disposed in the filter box 30, and is connected to the first filter box side plate 302, the second filter box side plate 303, the third filter box side plate 304, and the fourth filter box side plate 305, and is configured to support the water distribution tray.

Furthermore, a reinforcing rib 3081 is further disposed at the connection position of the supporting frame 308 and the inner wall of the filter box 30 to enhance the connection stability of the supporting frame 308, the first filter box side plate 302, the second filter box side plate 303, the third filter box side plate 304 and the fourth filter box side plate 305.

In the whole sewage purification process, sewage firstly enters the filter 20 from the water inlet 2021 and contacts with the biological filler in the water inlet cavity 21 to carry out the first sewage purification. Meanwhile, after the air pipe is communicated with an external air source, air is filled into the sewage, so that the purification speed of the biological filler is accelerated. When the filter chamber 20 is filled with sewage, the sewage enters the water diversion cavity 31 of the filter box 30 through the filtering baffle 40 by a pipeline, and the solid waste blocked by the filtering baffle 40 sinks into the aeration cavity 22 through the isolation plate 206 and is discharged from the sewage outlet 207. The sewage entering the water diversion cavity 31 is divided into water curtains by the water diversion disc, enters the filter cavity 32, is purified again by the biological filler in the filter cavity 32, passes through the water outlet plate 307, flows into the water outlet cavity, and finally flows out of the water outlet 3021 for recycling. Through the primary purification of the biological filler in the water inlet cavity 21, the filtration of the filtering baffle 40 and the secondary purification of the biological filler in the filtering cavity 32, the complete purification of soluble harmful substances in the sewage can be ensured, and the condition of poor filtering effect can not occur.

The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A sewage filtering device is characterized in that:

the sewage filtering device comprises a filtering pool, a filtering baffle and a filtering box, wherein the filtering pool is communicated with the filtering box, the filtering baffle is arranged in the filtering pool and is positioned at the communication position of the filtering pool and the filtering box, and biological fillers are arranged in the filtering pool and the filtering box;

and sewage enters the filter tank and is purified by the biological filler, then enters the filter box through the filtration of the filtration baffle, and flows out after being purified again by the biological filler in the filter box, so as to be recycled.

2. The sewage filtering apparatus of claim 1, wherein:

the filtering baffle is connected with the side wall of the filter tank and encloses a water inlet space, and the water inlet space is communicated with the filter tank.

3. The sewage filtering apparatus of claim 2, wherein:

the size of an included angle between the filtering baffle and the horizontal plane is 0-45 degrees.

4. The sewage filtering apparatus of claim 2, wherein:

the filter box also comprises a water distribution disc and a water outlet plate, wherein the water distribution disc and the water outlet plate are positioned in the filter box and divide the filter box into a water distribution cavity, a filter cavity and a water outlet cavity;

the water distribution cavity is communicated with the water inlet space, the biological filler is positioned in the filtering cavity, and the purified sewage flows out of the water outlet cavity.

5. The sewage filtering apparatus of claim 4, wherein:

the filter box further comprises a support frame, and the support frame is located in the filter box and connected with the inner wall of the filter box to support the water distribution disc.

6. The sewage filtering apparatus of claim 5, wherein:

and reinforcing ribs are further arranged at the joints of the support frame and the inner wall of the filter box.

7. The sewage filtering apparatus of claim 1, wherein:

the filter tank also comprises a partition plate, through holes are formed in the partition plate, and the partition plate divides the filter tank into a water inlet cavity and an explosion air cavity; the biological filler is positioned in the water inlet cavity, and an air pipe is arranged in the air explosion cavity.

8. The sewage filtering apparatus of claim 7, wherein:

the filter chamber also comprises a drain outlet which is communicated with the aeration cavity.

9. The sewage filtering apparatus of claim 1, wherein:

the filter chamber is provided with a water inlet, the filter box is provided with a water outlet, sewage enters the filter chamber from the water inlet, passes through the filter baffle, enters the filter box and finally flows out from the water outlet.

10. A sewage filtration apparatus as claimed in any one of claims 1 to 9 wherein:

the filter comprises a filter bottom plate, a first filter side plate, a second filter side plate, a third filter side plate and a fourth filter side plate, wherein the first filter side plate, the second filter side plate, the third filter side plate and the fourth filter side plate are arranged on the filter bottom plate in a surrounding manner to form a box body with an opening at one side;

the filter box comprises a filter box bottom plate, a first filter box side plate, a second filter box side plate, a third filter box side plate and a fourth filter box side plate, wherein the first filter box side plate, the second filter box side plate, the third filter box side plate and the fourth filter box side plate are arranged around the filter box bottom plate to form a box body with an opening at one side;

and the second filter side plate is communicated with the second filter box side plate through a pipeline.