CN220012316U - Biological filter for sewage treatment and label extraction - Google Patents

Abstract

The utility model provides a biological filter for sewage treatment and label extraction, which comprises a filter tank and a mounting tank, wherein the mounting tank is arranged on one side of the filter tank, the filter tank comprises a filter layer, a label extraction layer and a gas reverse layer, the filter layer is positioned above the label extraction layer, the label extraction layer is positioned above the gas reverse layer, the biological filter layer is filled in the label extraction layer, a high-pressure return air pipe is arranged in the gas reverse layer, the air outlet direction of the high-pressure return air pipe faces the bottom of the biological filter layer, one end of the high-pressure return air pipe is fixed on the inner wall of the filter tank, the other end of the high-pressure return air pipe penetrates through the inner wall of one side of the filter tank, which is close to the mounting tank, and is fixedly arranged in the mounting tank.

Description

Biological filter for sewage treatment and label extraction

Technical Field

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

Background

The rapid development of the economy in China and the application of various novel materials and technologies in industrial production not only increase the sewage discharge amount, but also increase the difficulty of sewage treatment. At present, the tail water emission of most of sewage treatment plants in China executes the first-level B emission standard in the pollutant emission standard of urban sewage treatment plants (GB 18918-2002), and the water domain function and the classification standard in the surface water environment quality standard (GB 3838-2002) are compared to find that the effluent under the current emission standard still belongs to inferior V-class water, so that the water quality of a receiving water area is directly influenced, and the living environment is influenced; based on the increasingly important current situation and the increasingly strict emission standard of environmental treatment in China, the standard improvement and transformation of sewage treatment plants become a necessary development trend.

The existing sewage treatment plant can realize that the water quality of the sewage is improved to the water quality of the first-stage A from the original first-stage B, and a multi-stage biological filter or a biological filter layer is added to achieve the standard improvement effect, but in the use process, the filtering performance of the biological filter layer is gradually deteriorated due to the filtering interception effect of the biological filter layer, part of waste is easily accumulated at the bottom of the biological filter layer, the filtering standard improvement effect is affected, and the sewage filtering treatment with long time and large capacity is inconvenient to carry out.

In order to achieve the above purpose, the utility model provides a biological filter for sewage treatment and labeling, which can solve the above problems.

Disclosure of Invention

The utility model adopts the following technical scheme:

the utility model provides a sewage treatment carries mark and uses biological filter, includes filtering tank, install bin, the install bin is located one side of filtering tank, filtering tank is equipped with the filter layer from last extremely down in proper order, carries mark layer, gas reverse layer, carry the inside packing on mark layer and have biological filter layer, the inside on gas reverse layer is equipped with high-pressure return air pipe, high-pressure return air pipe's direction of giving vent to anger orientation the bottom on biological filter layer, the one end of high-pressure return air pipe (105) is fixed in the inner wall of filtering tank (1), the other end of high-pressure return air pipe (105) runs through filtering tank (1) and its end-to-end connection have high-pressure air pump (201), high-pressure air pump fixed mounting in the inside of install tank.

Preferably, the high-pressure return air pipe is provided with a plurality of rotary spray head assemblies, each rotary spray head assembly comprises an air guide table and a rotary table, the air guide tables are communicated with each other, a plurality of exhaust pipes are arranged on the periphery of each rotary table, air nozzles are distributed on the exhaust pipes and located above the side of each exhaust pipe, the air nozzles are obliquely distributed above the side of each exhaust pipe, the rotary table is rotationally connected to the upper part of each air guide table, and the exhaust pipes are subjected to centripetal force caused by air pushing in the oblique side direction during air injection, so that the rotary spray head assemblies automatically rotate, and even air backwashing can be performed on the bottoms of the biological filter layers, and the cleaning area is enlarged.

Preferably, a bearing is fixedly connected between the air guide table and the rotary table, the outer wall of the rotary table is connected with the inner wall of the bearing, and the inner wall of the air guide table is fixedly connected with the outer wall of the bearing.

Preferably, the rotary nozzle assembly is installed right above the high-pressure return air pipe, an air passage II is arranged in the rotary table, an air passage I is arranged in the high-pressure return air pipe, and the size and the axial position of the air passage I and the air passage II are the same.

Preferably, the inside of revolving stage is equipped with the conical guide block that protrudes downwards, the guide block is located directly over the first air flue, and conical guide block can be with the high-pressure gas water conservancy diversion to the blast pipe from air flue to blowout upwards, can carry out the water conservancy diversion to the air current simultaneously, reinforcing air current rotation effect, can effectually improve the air conductivity.

Preferably, a water inlet is formed in the top of the filter tank, a filter assembly is arranged in the filter layer, the filter assembly comprises two guide plates, and the two guide plates are fixedly connected with the inner wall of the filter tank respectively; the guide plates are positioned at the upper end of the inner cavity of the filter tank, a filter tank is fixedly connected between the two guide plates, the upper surface of the filter tank is connected with the lower surfaces of the two guide plates, filter screens are embedded on the two side surfaces of the filter tank, the horizontal height of one end of the two guide plates, which are far away from each other, is higher than that of the filter tank, and the horizontal height of one end of the two guide plates, which are close to each other, is the same as that of the filter tank.

Preferably, a drain pump is arranged in the installation box, a drain pipe is connected to the water inlet end of the drain pump, a plurality of water inlet grooves I are formed in the upper surface of the drain pipe, the drain pipe penetrates through one side wall of the filter box and stretches into the filter box, the drain pipe penetrates through one end of the filter box and is fixedly connected with the inner wall of the filter box, a drain pump is arranged at the bottom of the installation box, a drain pipe is arranged on one side of the drain pump, one end of the drain pipe stretches into the bottom of the filter box, and a plurality of water inlet holes are formed in the upper outer wall of part of the outer wall of the filter box, which stretches into the drain pipe.

Preferably, the filter layer is internally provided with a water distribution groove, a plurality of diversion trenches are arranged on the water distribution groove, a plurality of through holes are uniformly formed in the bottoms of the diversion trenches, the through holes penetrate through the water distribution groove, the diversion direction of the water distribution groove is perpendicular to the horizontal arrangement direction of the filter tank, water filtered by the filter tank can be uniformly guided to each through hole, and sewage can be uniformly contacted with the biological filter layer through the conduction of the through holes.

Preferably, the lateral wall of filtering pond case is equipped with the filler mouth, one side of filtering pond case is equipped with two and accomodates the groove, two accomodate the groove with the filler mouth is linked together, two accomodate the inside in groove all is equipped with the arm-tie, accomodate the groove the level height be higher than the level height of biological filtering layer, can fill biological filtering layer through opening and shutting the arm-tie.

Preferably, the side wall of the filter tank is provided with an observation port, so that the consumption degree and the filter residue capacity of the biological filter layer can be conveniently observed.

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

according to the utility model, the air backwashing assembly is arranged at the bottom of the labeling biological filter, so that the biological filter without labeling capacity at the bottom of the biological filter can be effectively washed by high-pressure air flow, the filtering capacity of the biological filter is recovered to a higher level, the labeling capacity of the filter tank for purifying sewage is ensured, and the filter tank can be suitable for long-time large-scale sewage filtering treatment.

Meanwhile, the original multi-group tiled air back-washing pipe with the exhaust holes is replaced by the rotary spray head assembly capable of rotating pneumatically, so that the washing efficiency of high-pressure air and the paving area of the high-pressure air can be effectively improved, and the biological filter layer losing the filtering capability can be uniformly and effectively washed.

Drawings

FIG. 1 is a schematic view of a part of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the structure of the present utility model;

FIG. 3 is a schematic view of the high pressure return air pipe and rotary nozzle assembly of the present utility model;

FIG. 4 is a cross-sectional view of a rotary sprayer assembly of the utility model;

fig. 5 is a sectional view of the mounting box of the present utility model.

In the figure: 1. a filter tank; 2. a mounting box;

101. a filter layer; 102. a label lifting layer; 103. a gas reaction layer; 104. a biological filter layer; 105. a high pressure return air pipe; 106. a filter assembly; 107. a deflector; 108. a filter tank; 109. a filter screen; 110. a blow-down pipe; 111. a water inlet groove I; 112. a water distribution tank; 113. a diversion trench; 114. a through hole; 115. a filler port; 116. a storage groove; 117. pulling a plate; 118. an observation port; 119. a draining pump; 120. a drain pipe; 121. a water inlet hole;

201. a high pressure air pump; 202. a rotary spray head assembly; 203. an air guide table; 204. a rotary table; 205. an exhaust pipe; 206. an air jet; 207. a bearing; 208. an air passage II; 209. an air passage I; 210. a water inlet; 211. a sewage pump; 212. and a flow guiding block.

Detailed Description

In order that the utility model may be more fully understood, a more particular description of the utility model will be rendered by reference to the appended drawings, in which several embodiments of the utility model are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used herein in this description of the utility model are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model, with the term "and/or" as used herein including any and all combinations of one or more of the associated listed items.

The present utility model will be described in further detail with reference to the accompanying drawings.

In one embodiment of the present utility model, please refer to fig. 1-5, which includes a filter tank 1 and a mounting tank 2, the mounting tank 2 is disposed on one side of the filter tank 1, the filter tank 1 is sequentially provided with a filter layer 101, a label lifting layer 102 and a gas counter layer 103 from top to bottom, the inside of the label lifting layer 102 is filled with a biological filter layer 104, the inside of the gas counter layer 103 is provided with a high-pressure return air pipe 105, the air outlet direction of the high-pressure return air pipe 105 faces the bottom of the biological filter layer 104, one end of the high-pressure return air pipe 105 is fixed on the inner wall of the filter tank 1, the other end of the high-pressure return air pipe 105 penetrates through the filter tank 1, one end of the high-pressure return air pipe 105 is connected with a high-pressure air pump 201, the high-pressure air pump 201 is fixedly mounted in the filter tank 2, after sewage enters the filter tank 1, firstly coarse separation is performed through the filter layer 101, then biological label lifting layer 102 is performed, at this moment, the biological filter layer 104 will react with sewage in contact with the sewage, the biological filter layer, the long-time continuously occurs, the filtering capability of the biological filter layer 104 drops, and thus the filtering capability of the biological filter layer 104 can be detected at the time, the water flow rate reaches the standard, and the high-pressure filter layer is not reached, and the filtering capability is blown out from the bottom of the filter layer 104 when the filter layer is controlled by the high-pressure air flow rate when the high-pressure filter device is started up.

Referring to fig. 2-4, a plurality of rotary nozzle assemblies 202 are disposed on the high-pressure return air pipe 105, the rotary nozzle assemblies 202 include an air guide table 203 and a rotary table 204, the air guide table 203 and the rotary table 204 are mutually communicated, a plurality of exhaust pipes 205 are disposed on the periphery of the rotary table 204, air nozzles 206 are distributed above the exhaust pipes 205, the air nozzles 206 are located above the exhaust pipes 205, the air nozzles 206 are obliquely distributed above the exhaust pipes 205, and the exhaust pipes 205 are subjected to centripetal force caused by air pushing in the oblique side direction during air injection, so that the rotary nozzle assemblies automatically rotate, thereby the bottom of the biological filter layer 104 can be uniformly air reversely cleaned, the cleaning area is enlarged, the arrangement of air outlet pipelines can be saved, the materials are saved, the flushing effect on the waste biological filter layer 104 is improved, and the filtering effect of the biological filter layer 104 is guaranteed.

Referring to fig. 4, a bearing 207 is fixedly connected between the air guide table 203 and the rotary table 204, the outer wall of the rotary table 204 is connected with the inner wall of the bearing 207, the inner wall of the air guide table 203 is fixedly connected with the outer wall of the bearing 207, and the air guide table 203 is connected with the rotary table 204 through the bearing 207, so that the rotary table 204 can be effectively ensured to rotate under the action of the centripetal force of air flow, and the cleaning area is effectively ensured.

Referring to fig. 4, the rotary nozzle assembly 202 is installed right above the high-pressure air return pipe 105, the air passage two 208 is provided in the rotary table 204, the air passage one 209 is provided in the high-pressure air return pipe 105, the size and the axial position of the air passage one 209 and the air passage two 208 are the same, the relatively smaller air passage replaces the existing large pipeline for transportation, the pressure of the output gas of the high-pressure air pump 201 can be increased, the gas pressure loss caused by the self material weight of the rotary table 204 can be counteracted, and the pressure intensity after output is ensured to be enough to clean the bottom of the biological filter layer 104.

Referring to fig. 4, a conical flow guiding block 212 protruding downwards is disposed in the rotary table 204, the flow guiding block 212 is disposed right above the first air passage 209, and the conical flow guiding block 212 can guide high-pressure air ejected upwards from the first air passage 209 to the exhaust pipe 205, and meanwhile can guide air flow, so that the air flow rotating effect is enhanced, the air flow conductivity is effectively improved, and the rotating effect is improved.

The working principle of the gas backwashing in the utility model is as follows;

after the sewage passes through the biological filter layer 104, part of the sewage is retained by the biological filter layer 104, so that the sewage passing rate of the biological filter layer 104 is reduced, and meanwhile, the filtering effect is reduced, at the moment, the control terminal receives the flow information and does not reach the standard, and controls the high-pressure air pump 201 to start, the gas exhausted by the high-pressure air pump 201 is transported to the first air passage 209 through the high-pressure air reflection pipe, the gas enters the rotary table 204 through the first air passage 209 and the second air passage 208 and is exhausted by the air injection port 206, and the rotary table 204 rotates to spray the high-pressure air flow in a rotating way because the air injection port 206 is obliquely distributed above the exhaust pipe 205, so that the bottom of the biological filter layer 104 is subjected to covering cleaning. The bottom support plate of the biofilter 104 has a plurality of holes therein, and the packing material inside the biofilter 104 is loosened by the scrubbing action of the air flow, thereby flowing out of the holes.

In another embodiment of the present utility model, please refer to fig. 1, 2 and 5, a water inlet 210 is provided at the top of the filter tank 1, a filter assembly 106 is provided in the filter layer 101, the filter assembly 106 includes two guide plates 107, and the two guide plates 107 are fixedly connected with the inner wall of the filter tank 1 respectively; the guide plates 107 are located at the upper end of the inner cavity of the filter tank 1, a filter tank 108 is fixedly connected between the two guide plates 107, the upper surface of the filter tank 108 is connected with the lower surfaces of the two guide plates 107, filter screens 109 are embedded in the two side surfaces of the filter tank 108, the horizontal height of one end of each guide plate 107, which is far away from each other, is higher than that of the filter tank 108, the horizontal height of one end of each guide plate 107, which is close to each other, is the same as that of the filter tank 108, sewage is guided to the filter tank 108 through the two guide plates 107, and the sewage is conveniently isolated and discharged in the sewage tank.

Referring to fig. 1, 2 and 5, a drain pump 211 is arranged in the installation box 2, a drain pipe 110 is connected to a water inlet end of the drain pump 211, a plurality of water inlet grooves 111 are formed in the upper surface of the drain pipe 110, the drain pipe 110 penetrates through one side wall of the filter box 1 and extends into the filter tank 108, the drain pipe 110 penetrates through one end of the filter box 1 and is fixedly connected with the inner wall of the filter box 1, a drain pump 119 is arranged at the bottom of the installation box 2, a drain pipe 120 is arranged at one side of the drain pump 119, one end of the drain pipe 120 extends into the bottom of the filter box 1, a plurality of water inlet holes 121 are formed in a part of the outer wall of the drain pipe 120 extending into the filter box 1, the upper part of the filter box 1 discharges isolated sludge through the filter tank 108, the drain pump 211 and the drain pipe 110, and the lower part of the filter box 1 discharges sewage filtered at the bottom through the drain pump 119 and the drain pipe 120, and the standard purification of the sewage is completed.

Referring to fig. 1 and 2, a water distribution groove 112 is disposed in the filter layer 101, a plurality of diversion trenches 113 are disposed above the water distribution groove 112, a plurality of through holes 114 are uniformly disposed at the bottom of each diversion trench 113, the through holes 114 penetrate through the water distribution groove 112, the diversion direction of the water distribution groove 112 is perpendicular to the horizontal arrangement direction of the filter tank 108, and water filtered by the filter tank 108 can be uniformly guided to each through hole 114, so that sewage can uniformly contact with the biological filter layer 104 through the conduction of the through holes 114.

With reference to fig. 1 and 2, a filler opening 115 is formed in a side wall of the filter tank 1, two containing grooves 116 are formed in one side of the filter tank 1, the two containing grooves 116 are communicated with the filler opening 115, pull plates 117 are arranged in the two containing grooves 116, the horizontal height of the containing grooves 116 is higher than that of the biological filter layer 104, the horizontal position of the containing grooves 116 is located on the upper portion of the lifting standard layer 102, the biological filter layer 104 can be filled through the opening and closing pull plates 117, and an observation opening 118 is formed in the side wall of the filter tank 1, so that the consumption degree and the filter residue capacity of the biological filter layer 104 can be observed conveniently.

When the device is used, the device can be automatically controlled through the control terminal, meanwhile, the filter tank can be monitored manually, the thickness of the biological filter layer 104 and the water passing degree can be judged manually through the observation port 118, so that whether filling and air back flushing are needed or not is judged, the thickness of the biological filter layer 104 can be observed in a full coverage mode through the height of the observation port 118, and when the water amount at the bottom of the biological filter layer 104 is obviously smaller, the high-pressure air pump 201 can be started manually to perform air back flushing; when the filler thickness of the biological filter layer 104 is observed to be lower than the standard value, the pulling plate 117 can be manually opened to fill the biological filler inwards, so that the biological filter layer 104 can play a role in lifting the sewage.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the embodiments described above, but is intended to be within the scope of the utility model, as long as such insubstantial modifications are made by the method concepts and technical solutions of the utility model, or the concepts and technical solutions of the utility model are applied directly to other occasions without any modifications.

Claims (10)

1. The utility model provides a sewage treatment carries mark and uses biological filter which characterized in that: including filtering case (1), install bin (2) are located one side of filtering case (1), filtering case (1) is equipped with filter layer (101) from last to being equipped with down in proper order, carries mark layer (102), gas anti-layer (103), the inside that carries mark layer (102) is filled with biological filter layer (104), the inside of gas anti-layer (103) is equipped with high-pressure return pipe (105), the direction of giving vent to anger of high-pressure return pipe (105) orientation biological filter layer (104)'s bottom, the one end of high-pressure return pipe (105) is fixed in filtering case (1)'s inner wall, the other end of high-pressure return pipe (105) runs through filtering case (1) and its end-to-end connection have high-pressure air pump (201), high-pressure air pump (201) fixed mounting in the inside of install bin (2).

2. The biological filter for sewage treatment labeling of claim 1, wherein: be equipped with a plurality of rotatory nozzle assemblies (202) on high-pressure return air pipe (105), rotatory nozzle assemblies (202) are including air guide platform (203), revolving stage (204), be linked together between air guide platform (203) and revolving stage (204), the week side of revolving stage (204) is equipped with a plurality of blast pipes (205), it has air jet (206) to distribute on blast pipe (205), air jet (206) are located the side top of blast pipe (205), revolving stage (204) rotate connect in the top of air guide platform (203).

3. The biological filter for sewage treatment labeling according to claim 2, wherein: the air guide table (203) is fixedly connected with a bearing (207) between the rotating table (204), the outer wall of the rotating table (204) is connected with the inner wall of the bearing (207), and the inner wall of the air guide table (203) is fixedly connected with the outer wall of the bearing (207).

4. A biological filter for sewage treatment labeling according to claim 3, wherein: the rotary nozzle assembly (202) is arranged right above the high-pressure return air pipe (105), an air passage two (208) is arranged in the rotary table (204), an air passage one (209) is arranged in the high-pressure return air pipe (105), and the size and the axial position of the air passage one (209) and the air passage two (208) are the same.

5. The biological filter for sewage treatment labeling of claim 4, wherein: the inside of revolving stage (204) is equipped with conical guide block (212) that protrudes downwards, guide block (212) are located directly over air flue one (209).

6. The biological filter for sewage treatment labeling of claim 1, wherein: the top of the filter tank (1) is provided with a water inlet (210), a filter assembly (106) is arranged in the filter layer (101), the filter assembly (106) comprises two guide plates (107), and the two guide plates (107) are fixedly connected with the inner wall of the filter tank (1) respectively; guide plates (107) are located the inner chamber upper end of filtering tank (1), two fixedly connected with filter vat (108) between guide plates (107), the upper surface of filter vat (108) is connected with two the lower surface of guide plates (107), filter vat (108) both sides face all inlays and is equipped with filter screen (109), two the level of the one end that guide plates (107) kept away from each other is higher than the level of filter vat (108), two the level of the one end that guide plates (107) are close to each other with the level of filter vat (108) is the same.

7. The biological filter for sewage treatment labeling of claim 6, wherein: the inside of install bin (2) is equipped with dredge pump (211), the inlet end of dredge pump (211) is connected with drain pipe (110), the upper surface of drain pipe (110) is equipped with a plurality of inlet tanks (111), drain pipe (110) pass one side lateral wall of filtering tank (1) stretches into filtering tank (108), drain pipe (110) run through one end of filtering tank (1) and with the inner wall fixed connection of filtering tank (1), the bottom of install bin (2) is equipped with drain pump (119), one side of drain pump (119) is equipped with drain pipe (120), the one end of drain pipe (120) stretches into the bottom of filtering tank (1), drain pipe (120) stretch into be equipped with a plurality of inlet openings (121) on the outer wall of the part of filtering tank (1).

8. The biological filter for sewage treatment labeling of claim 7, wherein: the filter layer (101) is internally provided with a water distribution groove (112), a plurality of diversion trenches (113) are arranged on the water distribution groove (112), a plurality of through holes (114) are uniformly formed in the bottom of each diversion trench (113), and the through holes (114) penetrate through the water distribution groove (112).

9. The biological filter for sewage treatment labeling of claim 1, wherein: the side wall of filtering tank (1) is equipped with filler mouth (115), one side of filtering tank (1) is equipped with two and accomodates groove (116), two accomodate groove (116) with filler mouth (115) are linked together, two accomodate the inside of groove (116) is equipped with arm-tie (117), accomodate the level of groove (116) and be higher than the level of biological filtering layer (104).

10. The biological filter for sewage treatment labeling of claim 1, wherein: the side wall of the filter tank (1) is provided with an observation port (118).