CN211813649U - Take filter material cleaning function's rural domestic sewage to use biological filter - Google Patents
Take filter material cleaning function's rural domestic sewage to use biological filter Download PDFInfo
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- CN211813649U CN211813649U CN201921724807.4U CN201921724807U CN211813649U CN 211813649 U CN211813649 U CN 211813649U CN 201921724807 U CN201921724807 U CN 201921724807U CN 211813649 U CN211813649 U CN 211813649U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model discloses a biological filter for rural domestic sewage with a filter material cleaning function, which comprises a barrel, wherein a rotary water distributor is arranged at the top in the barrel and is connected with a water inlet pipe at the top of the barrel, a plurality of filter material layers are arranged below the rotary water distributor, a grid support plate is arranged at the bottom of each filter material layer, a filter material is arranged in each filter material layer, and an air outlet is also arranged at the top of the barrel; the method is characterized in that: a disc-type water distributor is arranged between adjacent filter material layers, the top of each filter material layer is provided with a grid net, and a back washing device is arranged in each filter material layer; the biological filter tank has the advantages of uniform water distribution, good backwashing effect and less filter material loss.
Description
Technical Field
The utility model relates to a rural domestic sewage treatment field especially relates to a take filter material cleaning function's biological filter for rural domestic sewage.
Background
The urbanization level of China is low, most people live in rural areas, the economic condition is poor, domestic sewage is discharged out of order, and pollution cannot be effectively treated. In order to solve the problems of dispersed living, large water quantity fluctuation of domestic sewage, lack of matched drainage pipelines and effectively reduce the construction investment and the operation energy consumption in rural areas, related devices suitable for rural domestic sewage are available in the market at present.
Chinese patent CN105330008A discloses a biological filter for rural domestic sewage, which adopts a pump to feed air to supply filter materials, but the filter materials do not have a corresponding filter material cleaning device, so the filter materials need to be taken out, cleaned and then filled.
Chinese patent CN206308212U discloses an unpowered rural domestic sewage treatment device, which uses natural ventilation to supply oxygen and has low power consumption, but the device has no corresponding filter material cleaning device, so the filter material needs to be taken out, cleaned and then put in.
Most filter material back flush shower nozzles in the existing market are all installed at the bottom of the filter material layer, and during back flushing, because the uppermost layer of filter material needs to be cleaned, large impact force or a large amount of aeration is needed, but the filter material is cleaned by using the large impact force or the large amount of aeration, so that a large amount of loss of the filter material is caused, and the enterprise cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art, providing a structural design, having even water distribution, good backwashing effect and less filter material loss, and being a biological filter for rural domestic sewage with the filter material cleaning function.
In order to realize the purpose of the utility model, the technical proposal of the utility model is that:
a biological filter for rural domestic sewage with a filter material cleaning function comprises a barrel, wherein a rotary water distributor is arranged at the top in the barrel and is connected with a water inlet pipe at the top of the barrel, a plurality of filter material layers are arranged below the rotary water distributor, a grid support plate is arranged at the bottom of each filter material layer, filter materials are arranged in the filter material layers, and an air outlet is also formed in the top of the barrel; a disc-type water distributor is arranged between adjacent filter material layers, the top of each filter material layer is provided with a grid net, and a back washing device is arranged in each filter material layer; the backwashing device mainly comprises a main washing pipe vertically arranged at the center of the filter material layer and a plurality of auxiliary washing pipes uniformly and vertically arranged on the periphery of the side wall of the filter material layer, the top of the main washing pipe is sealed, the bottom of the main washing pipe is connected with a washing water pipe outside the barrel body, a plurality of layers of main spray heads are arranged on the periphery of the side wall of the main washing pipe from top to bottom, and the main spray heads face the direction between two adjacent auxiliary washing pipes; the auxiliary flushing pipe is sealed at the top, the bottom of the auxiliary flushing pipe is connected with a flushing water pipe outside the cylinder, a plurality of auxiliary spray heads are uniformly arranged on the side wall of the auxiliary flushing pipe from top to bottom, the auxiliary spray heads face the direction of the main flushing pipe, and a backwashing outlet is arranged on the side wall of the cylinder above the grid net.
Preferably, the bottom of the barrel is in an inverted cone shape, the bottom of the barrel is provided with a mud outlet pipe, and a mud isolating inclined plate is arranged above the mud outlet pipe.
Preferably, the filter material layer is at least two layers, and a plurality of vent holes are uniformly formed in the side wall of the cylinder body below the lowermost filter material layer.
As preferred, the barrel lateral wall that separates mud swash plate top still sets up delivery port and backward flow mouth, the backward flow mouth passes through the inlet tube connection at back flow and barrel top, still set up the backwash pump on the back flow.
Preferably, the aperture of the meshes of the grid support plate is smaller than that of the filter material.
Preferably, the aperture of the meshes of the grid net is smaller than that of the filter material.
Preferably, the main nozzles on the main flushing pipe are at least provided with 3 layers, and at least 4 nozzles are arranged in each layer; the height of the uppermost layer of main spray head is consistent with the height of the filter material in the filter material layer, and the lowermost layer of main spray head is positioned at the bottom of the main flushing pipe; the number of the auxiliary nozzles on the auxiliary flushing pipe is at least 3, the height of the uppermost auxiliary nozzle is consistent with the height of the filter material in the filter material layer, and the lowermost auxiliary nozzle is positioned at the bottom of the auxiliary flushing pipe.
The utility model has the advantages that:
firstly, the method comprises the following steps: a backwashing device is arranged in the filter material layer, so that the filter material can be cleaned regularly, and the service life of the filter material is prolonged;
secondly, the method comprises the following steps: the main flushing pipe and the auxiliary flushing pipe are vertically arranged, the main spray head and the auxiliary spray head are oppositely arranged, the filter material is flushed in the horizontal direction, the filter material can be cleaned without using a large amount of aeration or large impact force, and meanwhile, the loss in the process of flushing the filter material can be reduced by matching with the grid support plate and the grid net, so that the cost is saved;
thirdly, the method comprises the following steps: a disc type water distributor is arranged between the filter material layers, and water distribution is uniform;
fourthly: simple structure, area are little, set up the vent and form natural draft from down up and sewage forms reverse convection current, fully support the filter material, and sewage treatment is effectual.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 is a cylinder body, 1.1 is a water inlet pipe, 1.2 is an air outlet, 1.3 is a back flushing outlet, 1.4 is a mud outlet pipe, 1.5 is a vent hole, 1.6 is a water outlet, 1.7 is a return port, 2 is a rotary water distributor, 3 is a filter material layer, 4 is a grating support plate, 5 is a disc water distributor, 6 is a grating net, 7 is a back flushing device, 7.1 is a main flushing pipe, 7.2 is an auxiliary flushing pipe, 7.3 is a main spray head, 7.4 is an auxiliary spray head, 8 is a flushing water pipe, 9 is a mud isolating inclined plate, and 10 is a return pump.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
A biological filter for rural domestic sewage with a filter material cleaning function comprises a cylinder body 1, wherein a rotary water distributor 2 is arranged at the top in the cylinder body 1, the rotary water distributor 2 is connected with a water inlet pipe 1.1 at the top of the cylinder body 1, a plurality of filter material layers 3 are arranged below the rotary water distributor 2, a grid support plate 4 is arranged at the bottom of each filter material layer 3, filter materials are arranged in the filter material layers 3, and an air outlet 1.2 is also arranged at the top of the cylinder body 1; a disc-type water distributor 5 is arranged between adjacent filter material layers 3, a grid net 6 is arranged at the top of each filter material layer 3, and a back washing device 7 is arranged in each filter material layer 3; the back washing device 7 mainly comprises a main washing pipe 7.1 vertically arranged at the center of the filter material layer 3 and a plurality of auxiliary washing pipes 7.2 uniformly and vertically arranged on the periphery of the side wall of the filter material layer 3, the top of the main washing pipe 7.1 is sealed, the bottom of the main washing pipe is connected with a washing water pipe 8 outside the cylinder body 1, a plurality of layers of main spray heads 7.3 are arranged on the periphery of the side wall of the main washing pipe 7.1 from top to bottom, and the main spray heads 7.3 face the direction between two adjacent auxiliary washing pipes 7.2; the top of the auxiliary flushing pipe 7.2 is sealed, the bottom of the auxiliary flushing pipe is connected with a flushing water pipe 8 outside the cylinder body 1, a plurality of auxiliary spray heads 7.4 are uniformly arranged on the side wall of the auxiliary flushing pipe 7.2 from top to bottom, the auxiliary spray heads 7.4 face the direction of the main flushing pipe 7.1, and a backwashing outlet 1.3 is arranged on the side wall of the cylinder body 1 above the grille net 6; the filter material can be ceramsite, pearl wool and other common filter materials.
Preferably, the bottom of the cylinder body 1 is in an inverted cone shape, the bottom of the cylinder body 1 is provided with a sludge outlet pipe 1.4, and a sludge separation inclined plate 9 is further arranged above the sludge outlet pipe 1.4.
Preferably, the filter material layers 3 are at least two layers, the side wall of the cylinder 1 below the filter material layer 3 at the lowest layer is also uniformly provided with a plurality of vent holes 1.5, the number of the filter material layers 3 can be determined according to the height of the cylinder 1 and the characteristics of sewage treatment, and the height of each filter material layer 3 can be the same or different.
Preferably, the lateral wall of the barrel 1 above the mud-isolating inclined plate 9 is further provided with a water outlet 1.6 and a return port 1.7, the return port 1.7 is connected with a water inlet pipe 1.1 at the top of the barrel 1 through a return pipe, and the return pipe is further provided with a return pump 10.
Preferably, the aperture of the meshes of the grid support plate 4 is smaller than that of the filter material.
Preferably, the aperture of the meshes of the grid net 6 is smaller than that of the filter material.
Preferably, the main nozzles 7.3 on the main flushing pipe 7.1 are at least provided with 3 layers, and at least 4 main nozzles are arranged in each layer; the height of the uppermost layer of main spray nozzle 7.3 is consistent with the height of the filter material in the filter material layer 3, and the lowermost layer of main spray nozzle 7.3 is positioned at the bottom of the main flushing pipe 7.1; the number of the auxiliary nozzles 7.4 on the auxiliary flushing pipe 7.2 is at least 3, the height of the uppermost auxiliary nozzle 7.4 is consistent with the height of the filter material in the filter material layer 3, and the lowermost auxiliary nozzle 7.4 is positioned at the bottom of the auxiliary flushing pipe 7.2.
The filter tank has the working principle that:
when in use, sewage enters the rotary water distributor 2 along the water inlet pipe 1.1 and then is uniformly distributed on the filter material layer 3, meanwhile, air enters the cylinder body 1 from the vent holes 1.5 and flows upwards under the wind-pulling action of the cylinder body 1 to form natural ventilation and form reverse convection with sewage, and the surface of the filter material is fully contacted with the sewage, the gas-solid-liquid interfaces continuously collide and rub with each other, a thin and uniform biological film is formed on the surface of the filter material, so that pollutants in the sewage are effectively biodegraded, to remove pollutants, the treated water enters the bottom of the cylinder body 1.1 for sedimentation, sludge is discharged from a sludge outlet pipe 1.4, the upper clear water is discharged from a water outlet 1.6, if the concentration of the treated water is higher, the reflux pump 10 can be opened to pump the clean water into the water inlet pipe 1.1, mixing with the sewage in the water inlet pipe 1.1, and then entering the rotary water distributor 2 for water distribution treatment again, thereby achieving the purpose of reducing the organic load of the inlet water.
During backwashing, the water inlet pipe 1.1 is closed, the valve on the flushing water pipe 8 is opened, the main spray head 7.3 and the auxiliary spray head 7.4 start to flush the filter material, the main spray head 7.3 and the auxiliary spray head 7.4 are arranged along the height of the filter material, so that the filter material can be flushed without large impact force or large amount of aeration, the backwashing outlet 1.3 is opened during flushing, backwashing sewage can be discharged from the backwashing outlet 1.3, and the backwashing sewage cannot take away the filter material when being discharged due to small backwashing impact force and matching with the grating plate 6, so that the loss of the filter material is small.
The described embodiments are only some, but not all embodiments of the invention. 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.
Claims (7)
1. A biological filter for rural domestic sewage with a filter material cleaning function comprises a barrel, wherein a rotary water distributor is arranged at the top in the barrel and is connected with a water inlet pipe at the top of the barrel, a plurality of filter material layers are arranged below the rotary water distributor, a grid support plate is arranged at the bottom of each filter material layer, filter materials are arranged in the filter material layers, and an air outlet is also formed in the top of the barrel; the method is characterized in that: a disc-type water distributor is arranged between adjacent filter material layers, the top of each filter material layer is provided with a grid net, and a back washing device is arranged in each filter material layer; the backwashing device mainly comprises a main washing pipe vertically arranged at the center of the filter material layer and a plurality of auxiliary washing pipes uniformly and vertically arranged on the periphery of the side wall of the filter material layer, the top of the main washing pipe is sealed, the bottom of the main washing pipe is connected with a washing water pipe outside the barrel body, a plurality of layers of main spray heads are arranged on the periphery of the side wall of the main washing pipe from top to bottom, and the main spray heads face the direction between two adjacent auxiliary washing pipes; the auxiliary flushing pipe is sealed at the top, the bottom of the auxiliary flushing pipe is connected with a flushing water pipe outside the cylinder, a plurality of auxiliary spray heads are uniformly arranged on the side wall of the auxiliary flushing pipe from top to bottom, the auxiliary spray heads face the direction of the main flushing pipe, and a backwashing outlet is arranged on the side wall of the cylinder above the grid net.
2. The biological filter for rural domestic sewage with the filter material cleaning function according to claim 1, characterized in that: the bottom of the barrel is in an inverted cone shape, the bottom of the barrel is provided with a mud outlet pipe, and a mud separation inclined plate is arranged above the mud outlet pipe.
3. The biological filter for rural domestic sewage with the filter material cleaning function according to claim 1, characterized in that: the filter material layer sets up two-layerly at least, and the barrel lateral wall of the filter material layer below of lower floor still evenly sets up a plurality of ventilation holes.
4. The biological filter for rural domestic sewage with the filter material cleaning function according to claim 2, characterized in that: the barrel lateral wall that separates mud swash plate top still sets up delivery port and backward flow mouth, the backward flow mouth passes through the inlet tube connection at back flow and barrel top, still set up the backwash pump on the back flow.
5. The biological filter for rural domestic sewage with the filter material cleaning function according to claim 1, characterized in that: the aperture of the meshes of the grating supporting plate is smaller than that of the filter material.
6. The biological filter for rural domestic sewage with the filter material cleaning function according to claim 1, characterized in that: the aperture of the meshes of the grid net is smaller than that of the filter material.
7. The biological filter for rural domestic sewage with the filter material cleaning function according to claim 1, characterized in that: the main nozzles on the main flushing pipe are at least provided with 3 layers, and each layer is at least provided with 4 layers; the height of the uppermost layer of main spray head is consistent with the height of the filter material in the filter material layer, and the lowermost layer of main spray head is positioned at the bottom of the main flushing pipe; the number of the auxiliary nozzles on the auxiliary flushing pipe is at least 3, the height of the uppermost auxiliary nozzle is consistent with the height of the filter material in the filter material layer, and the lowermost auxiliary nozzle is positioned at the bottom of the auxiliary flushing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921724807.4U CN211813649U (en) | 2019-10-15 | 2019-10-15 | Take filter material cleaning function's rural domestic sewage to use biological filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921724807.4U CN211813649U (en) | 2019-10-15 | 2019-10-15 | Take filter material cleaning function's rural domestic sewage to use biological filter |
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| CN211813649U true CN211813649U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921724807.4U Active CN211813649U (en) | 2019-10-15 | 2019-10-15 | Take filter material cleaning function's rural domestic sewage to use biological filter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112678943A (en) * | 2020-12-25 | 2021-04-20 | 马鞍山奥柯环保科技发展有限公司 | Modularized biological aerated filter |
| CN112876004A (en) * | 2021-04-06 | 2021-06-01 | 贵州山水环保有限公司 | Water plant operation system and process method thereof |
-
2019
- 2019-10-15 CN CN201921724807.4U patent/CN211813649U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112678943A (en) * | 2020-12-25 | 2021-04-20 | 马鞍山奥柯环保科技发展有限公司 | Modularized biological aerated filter |
| CN112678943B (en) * | 2020-12-25 | 2024-01-30 | 马鞍山奥柯环保科技发展有限公司 | Modularized aeration biological filter |
| CN112876004A (en) * | 2021-04-06 | 2021-06-01 | 贵州山水环保有限公司 | Water plant operation system and process method thereof |
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