CN210065474U

CN210065474U - Biological filter for sewage treatment

Info

Publication number: CN210065474U
Application number: CN201920636921.5U
Authority: CN
Inventors: 张岩; 高熙阳
Original assignee: Huadian Water (tianjin) Co Ltd
Current assignee: Huadian Water (tianjin) Co Ltd
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-02-14
Anticipated expiration: 2029-05-07

Abstract

The utility model discloses a biological filter for sewage treatment, which belongs to the technical field of sewage treatment and comprises a biological filter body, wherein three groups of positioning steps are sequentially arranged on the inner walls of the left side and the right side of a filtering area from top to bottom, a return pipe is arranged at the water delivery end of a water pump, and disassembly auxiliary parts matched with a filter material box are arranged at the positions on the outer walls of the left side and the right side of the biological filter body close to the upper parts, the biological filter is provided with three groups of positioning steps with different lengths, so that a user can gradually take out the positioning steps for replacing and cleaning through the disassembly auxiliary parts because the three groups of positioning steps are different in length, meanwhile, the three groups of positioning steps also provide support for the filter material box and are provided with disassembly auxiliary parts for assisting, the lifting hook is matched with a lifting lug on the filter material box, the winch is controlled, the difficulty of cleaning and replacing is reduced.

Description

Biological filter for sewage treatment

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a biological filter for sewage treatment.

Background

Domestic sewage in rural areas of China is a source of black and odorous rivers, so that the treatment of the sewage in rural areas of China needs to be strengthened. The main pollutants in the rural domestic sewage are organic matters and ammonia nitrogen. Rural domestic sewage is generally handled through biological filter, but current biological filter filtration quality is low, and the inconvenient user of the filterable filter material and the filter screen that adopt simultaneously changes the clearance, uses for a long time, takes place the circumstances such as jam, and greatly reduced filtration quality reduces work efficiency, and the clearance degree of difficulty is higher simultaneously, for this reason, we provide a biological filter for sewage treatment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a biological filter for sewage treatment to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a biofilter for sewage treatment comprises a biofilter body, wherein an interlayer is arranged at the position, close to the lower part, of an inner cavity of the biofilter body, seepage holes are uniformly formed in the interlayer, the interlayer divides the inner cavity of the biofilter body into a water storage area at the lower part and a filtering area at the upper part, three groups of positioning steps are sequentially arranged on the inner walls of the left side and the right side of the filtering area from top to bottom, a filter box is arranged between the positioning steps of the left side and the right side, an aeration main pipe is spliced at the bottom of the outer wall of the left side of the biofilter body, a water outlet pipe is spliced at the bottom of the outer wall of the left side of the biofilter body and is positioned below the aeration main pipe, a control valve is arranged on the water outlet pipe, the right end of the aeration main pipe extends into the water storage area and is, the aeration branch pipe, the outer wall of the aeration branch pipe in the filter material box is provided with an air outlet, the bottom of the outer wall at the right side of the biological filter pool body is provided with a water pump, the water pumping end of the water pump is provided with a water pumping pipe, the other end of the water pumping pipe penetrates through the biological filter pool body and extends into a water storage area, the water pumping end of the water pump is provided with a return pipe, the front side and the rear side of the biological filter pool body are both provided with supporting pieces with the same structure, the top of each supporting piece is provided with a bearing plate, the top of each bearing plate is provided with a water distribution tank, the bottom of each water distribution tank is provided with a water distribution hopper, the bottom of each water distribution hopper penetrates through the bearing plate and corresponds to the biological filter pool body, one end of the return pipe, which is far away from the water pump, is connected with the right side of the, and the positions on the outer walls of the left side and the right side of the biological filter body are provided with disassembly auxiliary parts matched with the filter material box.

Further, three groups rectangle openings have all been seted up to filter cartridge top and bottom, and the rectangle opening right side is provided with filter plate through the hinge is articulated, filter plate is last evenly to be seted up the movable hole that matches with aeration branch pipe, and the welding of movable hole inner wall has the collar.

Further, support piece includes the installation piece of being connected with the outer wall of biological filter cell body front and back side, the installation piece top left and right sides all is provided with the telescopic link, installation piece top central authorities are provided with electric telescopic handle, and telescopic link and electric telescopic handle top all with accept the board and be connected.

Further, dismantle the auxiliary member and include the capstan winch of leaning on the position to be connected with biological filter cell body left and right sides outer wall, and the capstan winch is located the back flow front side, the capstan winch passes through support and biological filter cell body outer wall fixed connection, the capstan winch rear end is connected with servo motor, biological filter cell body top left and right sides middle part all is provided with the leading wheel through the support, the winding has the stay cord on the capstan winch, and the stay cord walks around the leading wheel and extends to filtration district inner chamber top, and the stay cord one end of keeping away from the capstan winch is provided with the lifting hook, three groups the filter material box top left and right sides all welds the lug with lifting hook complex.

Further, the location step cross-section is L shape, and three group location step lengths from last to increasing down gradually, the filter material box cross-section is T shape, filter material box bottom is provided with the reference column, and sets up the blind hole that matches with the reference column on the location step.

Furthermore, the three groups of filter material boxes are all provided with filter materials, the three groups of filter materials are respectively a three-dimensional elastic filter material, a plastic filter material and a common filter material from top to bottom, and the outer wall of the filter material is provided with microorganisms.

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

1) the utility model discloses be provided with three different location steps of length of group, because three different location steps of length, make things convenient for the user to take out gradually through dismantling the auxiliary member and change the clearance, three group location steps still provide the support to the filter material box simultaneously, it is supplementary to be provided with the dismantlement auxiliary member simultaneously, through cooperating with the lifting hook with the lug on the filter material box, control receipts line and unwrapping wire through the rotation of servo motor control capstan winch, be convenient for drive filter material box and move upward and dismantle and install the filter material box, reduce the clearance and change the difficulty, guarantee the filtration quality after the long-term use of internal filter structure, the filter material box that sets up simultaneously articulates through the hinge has filter screen plate, conveniently change the internal filter material, simultaneously under the condition that does not influence sewage entering, can also avoid the internal filter material to break away from;

2) the utility model discloses sewage gets into the cloth water tank through connecting water pipe and raceway, water distribution fill through cloth water tank bottom gets into the biological filter cell body, make water homodisperse get into, can effectively avoid blocking up, improve purification quality simultaneously, filter the impurity of aquatic through the filter screen board on three group filter material boxes, the ammonia nitrogen in the sewage passes through behind the filter material of three group filter material boxes, the ammonia oxidizing bacteria that adheres to it oxidizes the nitrite, aeration main pipe and aeration branch pipe effectively control dissolved oxygen concentration in the biological filter cell body simultaneously, restrain the activity of nitrite oxidizing bacteria, simultaneously sewage flows downwards gradually, the contact time of nitrite oxidizing bacteria and nitrite is reduced, finally make nitrite stably remain, denitrifying bacteria utilizes organic matter in the sewage as the carbon source on the filter material, directly reduce the nitrite that remains into nitrogen gas, the sewage denitrification and the degradation of partial organic matters are completed, the residual organic matters in the sewage can be further degraded by other microorganisms on the filter material, the sewage gradually enters the water storage area through the water seepage holes, and meanwhile, the water pump can be started to pump the water in the water storage area out and flow back to the water distribution tank through the return pipe for circular degradation, so that the operation load of the biological filter tank body is reduced, and the sewage purification quality is high.

Drawings

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

FIG. 2 is a schematic diagram of the structure of the filter screen plate of the present invention;

fig. 3 is a schematic structural view of the supporting member of the present invention.

In the figure: 1. a biological filter pool body; 2. an interlayer; 3. a water storage area; 4. a filtration zone; 5. positioning a step; 6. a filter material box; 61. a filter screen plate; 62. a movable hole; 7. an aeration main pipe; 8. an aeration branch pipe; 9. a water pump; 10. a return pipe; 11. a support member; 111. mounting blocks; 112. a telescopic rod; 113. an electric telescopic rod; 12. a water distribution tank; 13. a water delivery pipe; 14. a water pump; 15. disassembling the auxiliary parts; 151. a winch; 152. a guide wheel; 153. pulling a rope; 154. and (4) a lifting hook.

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. 1-3, the present invention provides a technical solution: a biological filter for sewage treatment comprises a biological filter body 1, the upper end of the biological filter body 1 is not sealed, an interlayer 2 is arranged at the position below the inner cavity of the biological filter body 1, the interlayer 2 and the biological filter body 1 are integrally formed, and seepage holes are uniformly formed in the interlayer 2, sewage after treatment conveniently enters a water storage area 3 downwards, the interlayer 2 divides the inner cavity of the biological filter body 1 into the water storage area 3 at the lower part and a filtering area 4 at the upper part, three groups of positioning steps 5 are sequentially arranged on the inner walls of the left side and the right side of the filtering area 4 from top to bottom for supporting and fixing a filter material box 6, the filter material box 6 is arranged between the positioning steps 5 at the left side and the right side, a main aeration pipe 7 is inserted at the bottom of the outer wall at the left side of the biological filter body 1, the left end of the main aeration pipe 7 is communicated with an aerator, the water outlet pipe is positioned below the main aeration pipe 7, the water outlet pipe is provided with a control valve, the right end of the main aeration pipe 7 extends into the water storage area 3 and is fixedly connected with the inner wall of the right side of the water storage area 3, the right end of the main aeration pipe 7 is closed, the top of the main aeration pipe 7 is uniformly provided with branch aeration pipes 8, the branch aeration pipes 8 are communicated with the main aeration pipe 7, the top of each branch aeration pipe 8 sequentially penetrates through the interlayer 2 and the three groups of filter material boxes 6, the branch aeration pipes 8 and the top of the filter material boxes 6 at the top are positioned on the same horizontal line, the top of each branch aeration pipe 8 is closed, the outer wall of each branch aeration pipe 8 positioned in each filter material box 6 is provided with air outlet holes, the outer wall of each branch aeration pipe 8 can be sealed by sealant to be provided with a waterproof and breathable film, under the condition, and because the aeration branch pipe 8 runs through the three groups of filter material boxes 6, the dissolved oxygen concentration at the three groups of filter material boxes 6 can be effectively controlled, an excessive or insufficient aeration area can not be formed, the bottom of the outer wall of the right side of the biological filter pool body 1 is provided with a water pump 9, the water pumping end of the water pump 9 is provided with a water pumping pipe, the other end of the water pumping pipe runs through the biological filter pool body 1 and extends into the water storage area 3, the water delivery end of the water pump 9 is provided with a return pipe 10, the front side and the back side of the biological filter pool body 1 are both provided with supporting pieces 11 with the same structure, the top of the supporting piece 11 is provided with a bearing plate, the top of the bearing plate is provided with a water distribution tank 12, the bottom of the water distribution tank 12 is provided with a water distribution hopper, so that water is uniformly dispersed and enters, the blockage can be effectively avoided, the bottom of the water, the water delivery end of the water suction pump 14 is connected with the top of the water distribution tank 12 through a water delivery pipe 13, the water suction end of the water suction pump 14 is provided with a connecting water pipe, and the positions, close to the upper parts, of the outer walls of the left side and the right side of the biological filter tank body 1 are provided with disassembly auxiliary parts 15 matched with the filter material box 6.

As shown in fig. 2: the top and the bottom of the three groups of filter material boxes 6 are respectively provided with a rectangular opening, the right side of each rectangular opening is provided with a filter screen plate 61 in a hinged mode through a hinge, the filter material in the filter screen plate is convenient to replace, meanwhile, the aperture of each filter screen plate 61 is smaller than the particle size of the filter material, the filter material in the filter screen plate is prevented from seeping out, the filter screen plate 61 is uniformly provided with movable holes 62 matched with the aeration branch pipes 8, when the filter screen plate is used for installation, the movable holes 62 correspond to the aeration branch pipes 8, the aeration branch pipes 8 play a guiding role, mounting rings are welded on the inner walls of the movable holes 62 and used for reducing the abrasion of the contact between the aeration branch pipes 8 and the filter;

as shown in fig. 3: the supporting piece 11 comprises an installation block 111 connected with the outer walls of the front side and the rear side of the biological filter tank body 1, the installation block 111 can be connected with the biological filter tank body 1 through bolts, telescopic rods 112 are arranged on the left side and the right side of the top of the installation block 111, balance of up-and-down movement of the bearing plate is guaranteed, an electric telescopic rod 113 is arranged in the center of the top of the installation block 111, the electric telescopic rod 113 is connected with an external power supply through a wire, the electric telescopic rod 113 is used for controlling the bearing plate to move up and down, the phenomenon that the work of disassembling the filter material box 6 through disassembling the auxiliary piece 15 is influenced is avoided;

as shown in fig. 1: the disassembly auxiliary part 15 comprises a winch 151 connected with the upper positions of the outer walls of the left side and the right side of the biological filter tank body 1, the winch 151 is positioned on the front side of the return pipe 10, the winch 151 is fixedly connected with the outer wall of the biological filter tank body 1 through a support, the rear end of the winch 151 is connected with a servo motor, the servo motor is connected with an external power supply through a wire, guide wheels 152 are arranged in the middle of the left side and the right side of the top of the biological filter tank body 1 through supports to play a role in guiding and limiting, a pull rope 153 is wound on the winch 151, the pull rope 153 bypasses the guide wheels 152 to extend to the upper part of an inner cavity of the filtering area 4, a lifting hook 154 is arranged at one end of the pull rope;

as shown in fig. 1: the cross section of each positioning step 5 is L-shaped, the lengths of the three groups of positioning steps 5 are gradually increased from top to bottom, so that the middle filter material box 6 and the bottom filter material box 6 can move upwards conveniently, the cross section of the filter material box 6 is T-shaped, the bottom of the filter material box 6 is provided with a positioning column, and the positioning steps 5 are provided with blind holes matched with the positioning columns, so that the positioning and installation are convenient;

as shown in fig. 1: the three groups of filter material boxes 6 are all provided with filter materials, the three groups of filter materials are respectively three-dimensional elastic filter materials, plastic filter materials and common filter materials from top to bottom, the common filter materials are common filter materials well known by the technical personnel in the field, no special limitation is provided, preferably quartz sand, the filter materials in the plastic filter material layers are plastic filter materials well known by the technical personnel in the field, no special limitation is provided, preferably corrugated filter materials are provided, and the outer walls of the filter materials are provided with microorganisms.

Example (b): when in use, the water pump 14 is started, sewage enters the water distribution tank 12 through the connecting water pipe and the water delivery pipe 13, enters the biological filter tank body 1 through the water distribution hopper at the bottom of the water distribution tank 12, water entering the biological filter tank body 1 sequentially passes through the three groups of filter material boxes 6, impurities in the water are filtered through the filter screen plates 61 on the three groups of filter material boxes 6, ammonia nitrogen in the sewage passes through filter materials of the three groups of filter material boxes 6, ammonia oxidizing bacteria attached to the ammonia oxidizing bacteria are oxidized into nitrite, meanwhile, the dissolved oxygen concentration in the biological filter tank body 1 is effectively controlled by the main aeration pipe 7 and the branch aeration pipes 8, the activity of nitrite oxidizing bacteria is inhibited, simultaneously, the sewage gradually flows downwards, the contact time of the nitrite oxidizing bacteria and the nitrite is reduced, finally the nitrite is stably kept, and then the denitrifying bacteria on the filter materials utilize organic matters in the sewage as a carbon source, the denitrification of the sewage and the degradation of partial organic matters are completed, the residual organic matters in the sewage can be further degraded by other microorganisms on the filter material, the sewage gradually enters the water storage area 3 through the water seepage hole, meanwhile, the water pump 9 can be started to pump the water in the water storage area 3 out and flow back to the water distribution tank 12 through the return pipe 10 for cyclic degradation, the operation load of the biological filter tank body 1 is reduced, the sewage treatment quality is improved, after the treatment is finished, the water can be discharged by opening the control valve on the water outlet pipe, when the filter material needs to be cleaned or replaced, the electric telescopic rod 113 is started to drive the bearing plate to enable the water distribution tank 12 to move upwards to a specified position, the lifting hook 154 is fixed with the lifting lug on the top filter material box 6, the servo motor is started to drive the winch 151 to rotate, the filter material box 6 on the top is moved upwards, the filter material box 6 on the top is, the messenger is fixed through the lug with lifting hook 154 on the filter material box 6 with the middle part, starts servo motor and drives capstan winch 151 corotation, makes the filter material box 6 rebound that is located the middle part, and on the same reason, the filter material box 6 of dismantling the bottom also through the same step as above-mentioned can, dismantle filter material box 6 back, can overturn filter screen board 61 and clear up or change the inner wall filter material, guarantee this biological filter cell body 1 filtration quality.

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 biological filter for sewage treatment, includes biological filter cell body (1), its characterized in that: the inner cavity of the biological filter tank body (1) is provided with an interlayer (2) at a position close to the lower part, the interlayer (2) is uniformly provided with water seepage holes, the interlayer (2) divides the inner cavity of the biological filter tank body (1) into a water storage area (3) at the lower part and a filtering area (4) at the upper part, the inner walls of the left side and the right side of the filtering area (4) are sequentially provided with three groups of positioning steps (5) from top to bottom, a filter material box (6) is arranged between the positioning steps (5) at the left side and the right side, the bottom of the outer wall at the left side of the biological filter tank body (1) is spliced with an aeration main pipe (7), the water outlet pipe is positioned below the aeration main pipe (7), a control valve is arranged on the water outlet pipe, the right end of the aeration main pipe (7) extends into the water storage area (3), aeration branch pipes (8) are uniformly arranged at the top of the aeration main pipe (7), the top of each aeration branch pipe (8) sequentially penetrates through the interlayer (2) and the three groups of filter material boxes (6), each aeration branch pipe (8), the outer wall of each aeration branch pipe (8) in each filter material box (6) is provided with an air outlet, the bottom of the outer wall of the right side of the biological filter pool body (1) is provided with a water pump (9), the water pumping end of each water pump (9) is provided with a water pumping pipe, the other end of each water pumping pipe penetrates through the biological filter pool body (1) and extends into the water storage area (3), the water delivery end of each water pump (9) is provided with a return pipe (10), the front side and the rear side of the biological filter pool body (1) are respectively provided with a supporting piece (11) with the same structure, the top of each supporting piece (11) is provided with, and the water distribution hopper bottom runs through and accepts the board corresponding with biological filter cell body (1), the one end that water pump (9) were kept away from in back flow (10) is connected with water distribution tank (12) right side, water distribution tank (12) top left side is provided with suction pump (14), suction pump (14) water delivery end is connected with water distribution tank (12) top through raceway (13), and suction pump (14) end of drawing water is provided with the connection water pipe, biological filter cell body (1) left and right sides outer wall all is provided with dismantlement auxiliary member (15) with filter material box (6) complex by last position.

2. A biofilter for wastewater treatment according to claim 1, wherein: the filter screen comprises three groups of filter screen boxes (6), rectangular openings are formed in the tops and the bottoms of the filter screen boxes, filter screen plates (61) are hinged to the right sides of the rectangular openings through hinges, movable holes (62) matched with the aeration branch pipes (8) are uniformly formed in the filter screen plates (61), and mounting rings are welded to the inner walls of the movable holes (62).

3. A biofilter for wastewater treatment according to claim 1, wherein: support piece (11) include installation piece (111) of being connected with biological filter cell body (1) front and back side outer wall, installation piece (111) top left and right sides all is provided with telescopic link (112), installation piece (111) top central authorities are provided with electric telescopic handle (113), and telescopic link (112) and electric telescopic handle (113) top all with accept the board and be connected.

4. A biofilter for wastewater treatment according to claim 1, wherein: dismantle auxiliary member (15) and include winch (151) of leaning on the position connection with biological filter cell body (1) left and right sides outer wall, and winch (151) are located back flow (10) front side, winch (151) are through support and biological filter cell body (1) outer wall fixed connection, winch (151) rear end is connected with servo motor, biological filter cell body (1) top left and right sides middle part all is provided with leading wheel (152) through the support, the winding has stay cord (153) on winch (151), and stay cord (153) are walked around leading wheel (152) and are extended to filtering area (4) inner chamber top, and stay cord (153) keep away from the one end of winch (151) and be provided with lifting hook (154), three groups filtering box (6) top left and right sides all welds and have lifting hook (154) complex lug.

5. A biofilter for wastewater treatment according to claim 1, wherein: the cross-section of location step (5) is L shape, and three group location step (5) lengths from last to increasing down gradually, filter cartridge (6) cross-section is T shape, filter cartridge (6) bottom is provided with the reference column, and sets up the blind hole that matches with the reference column on location step (5).

6. A biofilter for wastewater treatment according to claim 1, wherein: the three groups of filter material boxes (6) are all provided with filter materials, the three groups of filter materials are respectively a three-dimensional elastic filter material, a plastic filter material and a common filter material from top to bottom, and the outer wall of the filter material is provided with microorganisms.