CN217757187U

CN217757187U - A integration biological filter equipment for villages and towns sewage treatment

Info

Publication number: CN217757187U
Application number: CN202221143625.XU
Authority: CN
Inventors: 蒋康豫; 唐静; 蒋宁
Original assignee: SICHUAN RENFU BIOLOGICAL ENVIRONMENTAL PROTECTIONCO Ltd
Current assignee: SICHUAN RENFU BIOLOGICAL ENVIRONMENTAL PROTECTIONCO Ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-11-08
Anticipated expiration: 2032-05-11

Abstract

The utility model relates to an integrated biological filter equipment for sewage treatment of villages and towns, the front end of which is connected with a house sewage source through a regulating tank, a grid tank, a sewage main pipe and a sewage branch pipe in sequence, and the rear end of which is connected with an artificial wetland; the device comprises a plurality of annular cylinder units which are concentrically arranged, a plurality of spacing cavities are formed among the annular cylinder units, and the annular cylinder units are all arranged in a shell; the annular cylinder unit is filled with filter materials; an aeration pipe is arranged in the spacing cavity; in the shell, sewage flows circularly from the circle center to the outside, and air flows from the outer ring to the circle center. The utility model discloses the beneficial effect who reaches is: the installation and maintenance are convenient, the pore blockage is avoided, the service life is prolonged, the sludge discharge is facilitated, and the cost is low.

Description

A integration biological filter equipment for villages and towns sewage treatment

Technical Field

The utility model relates to the technical field of sewage treatment equipment, in particular to an integrated biological filter tank device for sewage treatment in villages and towns.

Background

The aeration biological filter is developed based on the biological membrane methods of a common biological filter, a high-load biological filter, a biological filter tower, a biological contact oxidation method and the like. Because the biological oxidation and the interception of suspended solids can be integrated, the subsequent secondary sedimentation is saved, the hydraulic retention time is short, and the effluent quality is high, so the method is widely popularized and applied in recent years.

The aeration pipe of the biological aerated filter is generally provided with a filter head which is arranged on a filter plate and has the main functions of uniformly distributing water at the bottom of the biological aerated filter and during water combined backwashing; a mode of directly arranging a perforated aeration pipe without installing a filter head is also provided; and a mode of installing a membrane type aeration head. Either way, however, it begins to lose its efficiency, usually after two years of operation.

The reasons for the loss of efficiency are many, the main reasons being: with the increase of time, the filter material layer is hardened, the gap is reduced, and the difficulty of gas passing is high; during aeration, the material is easy to fall off, and the aeration layer and the aeration head on the lower layer are blocked, so that the aeration effect is poor. Particularly, in the initial stage of aeration, when the filter material layer is unstable, a lot of filter materials fall down at the aeration layer.

Therefore, the present company has devised a novel biofilter unit to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide an integration biological filter equipment for villages and towns sewage treatment convenient to installation, maintenance, avoid the hole to block up, improve life, do benefit to mud exhaust.

The purpose of the utility model is realized through the following technical scheme: the utility model provides an integration biological filter equipment for villages and towns sewage treatment, its front end is in proper order through equalizing basin, grid pond, sewage main pipe, sewage branch connection on house sewage source, and its rear end links to each other with constructed wetland, includes:

the annular cylinder units are arranged concentrically, a plurality of spacing cavities are formed among the annular cylinder units, and the annular cylinder units are all arranged in the shell;

the annular cylinder unit is internally filled with filter materials;

an aeration pipe is arranged in the spacing cavity;

in the shell, sewage flows circularly from the circle center to the outside, and air flows from the outer ring to the circle center.

Optionally, the annular cylinder unit comprises an inner cylinder and an outer cylinder; the inner cylinder and the outer cylinder are concentric and arranged at intervals and form a filling cavity; the filter material is positioned in the filling cavity.

Furthermore, after the outer cylinder and the inner cylinder are hung on the shell, an annular cylinder structure is naturally formed; the outer cylinder comprises an outer cylinder wall part and a bottom plate part, and the cross section of the outer cylinder is L-shaped; the inner cylinder comprises an inner cylinder wall part and a bottom ring part, and the section of the inner cylinder is in an inverted T shape; the inner cylinder is arranged on the outer cylinder, and the bottom ring part is arranged on the bottom plate part.

Furthermore, a plurality of rods are arranged on the wall of the inner cylinder positioned in the filling cavity; from the top down direction, the length of the rod gradually increases.

Optionally, the device further comprises an upper cover which is hermetically buckled on the shell;

the center of the upper cover is provided with a water inlet head and a gas outlet head;

the upper cover is provided with a plurality of annular air inlet pipes; each annular air inlet pipe corresponds to one spacing cavity;

the aeration pipe penetrates through the upper cover and is connected with the corresponding annular air inlet pipe;

the upper wall of the shell is provided with a water outlet head.

Optionally, the air pressure in each aeration pipe in the plurality of spacing cavities is gradually reduced from the outer ring to the circle center; the air naturally flows from the outer ring to the center of the circle.

Furthermore, the aeration pipe is provided with aeration holes on a half cylindrical surface close to the center of the shell.

Optionally, the aeration pipe is arranged along the vertical direction in an inclined manner; the aeration pipes in the same spacing cavity are simultaneously inclined in the clockwise direction or the anticlockwise direction; the bottom of the shell is provided with a sludge discharge port.

Optionally, the annular cylinder unit is provided with a lifting ring.

Optionally, the upper cover is provided with a hanging ring.

It should be noted that the rural sewage treatment is different from the urban sewage treatment. During urban sewage treatment, the amount of sewage is large, sewage treatment is concentrated, the contents of heavy metals, chemicals and the like are high, and sewage treatment equipment is large. The sewage quantity in rural areas is small, one sewage treatment device is arranged in each village, the dispersion is wide, the sewage treatment devices are not particularly large, the contents of heavy metals, chemicals and the like in the sewage in rural areas are not high, and the sewage discharge area in rural areas is wide.

The scheme simplifies equipment on the basis of urban sewage equipment aiming at the characteristics of rural sewage; although some substances are not effectively treated, they are discharged to artificial wet areas and can be treated by nature. In addition, the rural sewage equipment is dispersed in each village, so that the manpower and material resources are consumed for the complete overhaul and cleaning, and the structure is designed into a structure convenient to clean and install; in addition, the designed filter equipment has the advantages that the pores among the filter materials are not easy to block, the service life is prolonged, and the cleaning time is prolonged.

Therefore, the scheme has long service life, is beneficial to cleaning, is simple and convenient to install, has simple structure and low cost, and is very suitable for popularization and application in vast rural areas.

The utility model has the advantages of it is following:

the traditional structure that the filter layers are stacked up and down is abandoned, and the filter material is not easy to be pressed down through a plurality of annular cylinder units arranged at intervals, so that the pores of the filter material are prevented from being pressed down; meanwhile, the filtered impurities fall into the spacing cavities by the spacing cavities among the annular cylinder units, so that the impurities are convenient to clean, and most importantly, the filter material pores are not blocked by the impurities, so that the service time of the whole biological filter equipment is prolonged;

the structure of the annular cylinder unit can realize installation by hoisting, is simple and convenient, and is also convenient for subsequent disassembly and cleaning;

when the rod in the annular cylinder unit works for a period of time, the inner cylinder is rotated for maintenance, so that the renovation of the rod to the filter material can be realized, and the pore blockage of the filter material is avoided;

the exposure pipes at different annular positions are connected to the annular pipes at different air pressures, and the aeration holes of the exposure pipes are arranged, so that the flow direction of air can be controlled conveniently, and the adverse interference of air turbulence on water treatment is avoided;

the exposure bags in the same interval cavity are arranged in the same clockwise and anticlockwise mode, so that the exposure tubes can gather sludge at the bottom of the interval cavity at the sludge discharge port, sludge discharge is facilitated, and the structure is simple.

Drawings

FIG. 1 is a schematic view of the connection of the sewage treatment system used in rural areas;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the structure provided between the annular cylinder units;

FIG. 4 is a schematic structural view of an annular cartridge unit;

FIG. 5 is a schematic cross-sectional view of the annular cartridge unit disposed within the housing;

FIG. 6 is a schematic structural view of the upper cover;

in the figure: 1-annular cylinder unit, 2-spacing cavity, 3-shell, 4-filter material, 5-aeration pipe, 6-inner cylinder, 7-outer cylinder, 8-rod, 9-upper cover, 10-water inlet head, 11-gas outlet head, 12-annular air inlet pipe, 13-water outlet head, 14-sludge discharge port, 15-lifting ring, 16-adjusting tank, 17-grid tank, 18-sewage main pipe, 19-sewage branch pipe and 20-house sewage source.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1 to 3, an integrated biofilter device for sewage treatment in villages and towns comprises a housing 3, a plurality of annular cylinder units 1 and an upper cover 9, wherein the front end of the integrated biofilter device is connected to a house sewage source through a regulating tank, a grid tank, a sewage main pipe and a sewage branch pipe in sequence, and the rear end of the integrated biofilter device is connected with an artificial wetland; the upper cover 9 is covered on the shell 3 for sealing; inside the housing 3, a plurality of annular cylinder units 1 are placed, and these annular cylinder units 1 are concentrically arranged while forming a plurality of pitch chambers 2 therebetween. The annular cylinder unit 1 is filled with filter materials 4. An aeration pipe 5 is arranged in the spacing cavity 2.

In the shell 3, sewage flows around from the circle center to the outside, and air flows from the outer ring to the circle center. Specifically, when the aeration treatment is performed, sewage is introduced into the center of the shell 3, the sewage respectively passes through the annular cylinder unit 1 on the first layer, the spacing cavity 2 on the first layer, the annular cylinder unit 1 on the second layer, and the spacing cavity 2 … … on the second layer, finally passes through the annular cylinder unit 1 on the outermost layer, and reaches the annular spacing cavity 2 on the outermost layer, and then the aerated and filtered water is discharged.

In the traditional arrangement that the filtering layers are stacked up and down, the filtering layers are easily pressed under the action of gravity, so that the pores of the filtering layers are pressed small; and after long-time work, the pores of the filter layer are easily blocked by impurities. However, according to the scheme, the traditional integrated filtering layer is divided into the plurality of annular cylinder units 1, and impurities are not easy to block pores along the filtering direction of water flow; and many intercepted impurities can fall into the spacing cavity 2, so that subsequent cleaning is facilitated.

Alternatively, an integrated biofilter unit for sewage treatment in villages and towns is designed for the annular cylinder unit 1.

Specifically, the annular cylinder unit 1 includes an inner cylinder 6 and an outer cylinder 7. Wherein, the outer cylinder 7 comprises an outer cylinder wall part and a bottom plate part, and the section of the outer cylinder is L-shaped; the inner cylinder 6 comprises an inner cylinder wall part and a bottom ring part, and the section of the inner cylinder is in an inverted T shape. The outer cylinder 7 and the inner cylinder 6 are both provided with holes and both provided with hanging rings.

When the device is installed, the outer cylinder 7 is firstly hung in the shell 3, then the inner cylinder 6 is hung in the shell 3, the bottom ring part of the inner cylinder 6 is placed on the bottom plate part, and the corresponding wall parts of the outer cylinder 7 and the inner cylinder 6 are arranged at intervals, so that a filling cavity is formed between the inner cylinder 6 and the outer cylinder 7; the filling cavity is filled with filter material 4. Therefore, the installation is convenient, and the subsequent disassembly and cleaning are very simple.

In this embodiment, a plurality of rods 8 are provided on the wall of the inner barrel 6 at the filling cavity; and the length of the rod 8 gradually increases from the top to the bottom. The function of the rod 8 is to support the filter material 4 to prevent the gap in the filter material 4 from being too small under the action of gravity; on the other hand, through hoisting inner tube 6 and then putting down, perhaps rotate inner tube 6, can stir filter material 4 to a certain extent, play the effect of stirring filter material 4 promptly to can block up the hole that filter material 4 formed because long-time work can comb again, thereby prolong the time of changing filter material 4.

Optionally, an integrated biofilter unit for sewage treatment in villages and towns is also designed for the upper cover 9.

Specifically, a water inlet head 10 is provided at the center of the upper cover 9, and a water outlet head 13 is provided on the upper wall of the housing 3. Water enters the center of the shell 3 through the water inlet head 10 and finally flows to the inner wall of the shell 3 to be discharged from the water outlet head 13.

Further, the upper cover 9 is provided with a plurality of annular air inlet pipes 12, and each annular air inlet pipe 12 corresponds to one spacing cavity 2; the aeration pipe 5 is connected with a corresponding annular air inlet pipe 12 after passing through the upper cover 9. The upper cover 9 has an air outlet 11 at the center. Air enters the aeration pipe 5 through an annular air inlet pipe 12, then goes from the outer ring of the shell 3 to the center, and finally is discharged from an air outlet head 11.

Optionally, an integrated biological filter device for sewage treatment in villages and towns is also provided, wherein the aeration pipe 5 is designed.

Specifically, the air pressure in each aeration pipe 5 in the plurality of spacing cavities 2 is gradually reduced from the outer ring to the circle center; the air naturally flows from the outer ring to the center of the circle. Because the air pressure of each spacing cavity 2 is different, the air pressure at the outer ring is large, and the air pressure at the position closer to the circle center is smaller, so that the flowing direction of the air is controlled.

Furthermore, the aeration pipe 5 is provided with aeration holes on the half cylindrical surface close to the circle center of the shell 3. When the air is discharged, the air is towards the direction of the circle center, the flowing direction of the air is further controlled, and disturbance caused by air turbulence is avoided.

In this embodiment, the aeration pipe 5 is arranged obliquely in the vertical direction; the aeration pipes 5 in the same spacing cavity 2 are simultaneously inclined in the clockwise direction or the anticlockwise direction. The bottom of the shell 3 is provided with a sludge collecting groove, and the sludge collecting groove is provided with a sludge discharge port 14. The lower end of the aeration pipe 5 is not blocked, and the gas released by the lower end of the aeration pipe 5 due to the inclined arrangement can blow the sludge to flow along the sludge collecting groove and is finally discharged at the sludge discharge port 14. The sludge discharge port 14 is connected with a sludge pump through a switch valve and a pipeline.

The above examples only represent preferred embodiments, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides an integration biological filter equipment for villages and towns sewage treatment, its front end is connected on house sewage source (20) through equalizing basin (16), grid pond (17), sewage main pipe (18), sewage branch pipe (19) in proper order, and its rear end links to each other with constructed wetland (21), its characterized in that: the method comprises the following steps:

a plurality of annular cylinder units (1) which are concentrically arranged, form a plurality of spacing cavities (2) with each other and are all arranged in the shell (3);

the annular cylinder unit (1) is filled with filter materials (4);

an aeration pipe (5) is arranged in the spacing cavity (2);

in the shell (3), sewage flows circularly from the circle center to the outside, and air flows from the outer ring to the circle center.

2. An integrated biofilter unit according to claim 1 for use in the treatment of sewage from villages and towns, characterized in that: the annular cylinder unit (1) comprises an inner cylinder (6) and an outer cylinder (7);

the inner cylinder (6) and the outer cylinder (7) are concentric and arranged at intervals, and form a filling cavity;

the filter material (4) is positioned in the filling cavity.

3. An integrated biofilter unit according to claim 2 for use in the treatment of sewage from villages and towns, characterized in that: the outer cylinder (7) and the inner cylinder (6) are hung on the shell (3) to naturally form an annular cylinder structure;

the outer cylinder (7) comprises an outer cylinder wall part and a bottom plate part, and the cross section of the outer cylinder is L-shaped;

the inner cylinder (6) comprises an inner cylinder wall part and a bottom ring part, and the section of the inner cylinder is in an inverted T shape;

the inner cylinder (6) is arranged on the outer cylinder (7), and the bottom ring part is arranged on the bottom plate part.

4. An integrated biofilter unit according to claim 3 for use in the treatment of sewage from villages and towns, characterized in that: the inner cylinder (6) is provided with a plurality of rods (8) on the wall of the filling cavity;

the length of the rod (8) increases gradually from top to bottom.

5. The integrated biofilter unit for treatment of sewage in villages and towns according to claim 1, characterized in that: the device also comprises an upper cover (9) which is hermetically covered on the shell (3);

the center of the upper cover (9) is provided with a water inlet head (10) and a gas outlet head (11);

the upper cover (9) is provided with a plurality of annular air inlet pipes (12); each annular air inlet pipe (12) corresponds to one spacing cavity (2);

the aeration pipe (5) penetrates through the upper cover (9) and is connected with the corresponding annular air inlet pipe (12);

the shell (3) is provided with a water outlet head (13) on the upper wall.

6. An integrated biofilter unit according to claim 1 for use in the treatment of sewage from villages and towns, characterized in that: the aeration pipes (5) in the plurality of spacing cavities (2) have gradually reduced air pressure in each aeration pipe (5) from the outer ring to the circle center;

the air naturally flows from the outer ring to the center of the circle.

7. The integrated biofilter unit for treatment of sewage in villages and towns according to claim 6, wherein: and the aeration pipe (5) is provided with aeration holes on a half cylindrical surface close to the circle center of the shell (3).

8. An integrated biofilter unit according to claim 1 for use in the treatment of sewage from villages and towns, characterized in that: the aeration pipe (5) is arranged along the vertical direction in an inclined way;

a plurality of aeration pipes (5) in the same spacing cavity (2) are simultaneously inclined along the clockwise direction or the anticlockwise direction;

the bottom of the shell (3) is provided with a sludge discharge port (14).

9. The integrated biofilter unit for treatment of sewage in villages and towns according to claim 1, characterized in that: the annular cylinder unit (1) is provided with a hanging ring (15).

10. The integrated biofilter unit for treatment of sewage in villages and towns according to claim 5, wherein: the upper cover (9) is provided with a hanging ring (15).