CN110812930B - A back flush unit for integration sewage treatment - Google Patents
A back flush unit for integration sewage treatment Download PDFInfo
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- CN110812930B CN110812930B CN201911071639.8A CN201911071639A CN110812930B CN 110812930 B CN110812930 B CN 110812930B CN 201911071639 A CN201911071639 A CN 201911071639A CN 110812930 B CN110812930 B CN 110812930B
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- tank
- backwashing
- fixedly connected
- pipe
- filter
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- 239000010865 sewage Substances 0.000 title claims abstract description 67
- 230000010354 integration Effects 0.000 title claims description 3
- 238000011001 backwashing Methods 0.000 claims abstract description 138
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 239000007921 spray Substances 0.000 claims description 6
- 238000004065 wastewater treatment Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims 5
- 239000012535 impurity Substances 0.000 description 10
- 238000011010 flushing procedure Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
- B01D29/688—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with backwash arms or shoes acting on the cake side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/117—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to the technical field of sewage treatment, and discloses a backwashing device for integrated sewage treatment, which comprises a filtering tank, wherein the top ends of the filtering tank, an outlet pipe and an inlet pipe are fixedly connected with a backwashing component together, the backwashing component comprises a backwashing tank, one end of the backwashing tank is fixedly connected with a water inlet bent pipe, the other end of the backwashing tank is fixedly connected with a water outlet bent pipe, one end of the inner side of the water outlet bent pipe, which is close to the backwashing tank, is provided with a first manual valve, and one side of the lower end of the outer side of the water outlet bent pipe, which is close to the inlet pipe, is fixedly connected with a backwashing pipe with a valve. According to the invention, the backwashing operation can be respectively carried out on the first-stage filter cylinder and the second-stage filter cylinder in the filter tank through the backwashing pipe and the water outlet bent pipe of the backwashing component, and sewage is filtered through the backwashing filter cylinder of the backwashing tank, so that the backwashing operation is directly carried out on the first-stage filter cylinder and the second-stage filter cylinder in the filter tank by using the sewage, and further the backwashing is more convenient.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a backwashing device for integrated sewage treatment.
Background
With the rapid development of economy in China, a large amount of sewage is generated in life and production, the sewage can be recycled after being treated, the consumption of water resources is reduced for the production in China, the sewage can be purified by using related technical means and can be continuously used by using a water treatment technology, so that the sewage treatment is very important, however, the sewage treatment equipment needs to be cleaned after being bought for a period of time after working, and the backwashing technology is generated in order to reduce the labor intensity and the cleaning time of cleaning.
Chinese patent discloses an automatic backwashing filter device for agricultural irrigation (No. CN109224606A), which is characterized in that a separation pressure-separation plate and a water pressure-reduction plate are arranged in a conventional backwashing filter device, so that water pressure in the backwashing filter can be relieved, internal elements are prevented from being damaged, the service life of the automatic backwashing filter device is prolonged, later maintenance cost is reduced, operation income is indirectly increased, but the backwashing effect is poor, and the backwashing operation efficiency is low. Accordingly, one skilled in the art provides a backwash assembly for integrated wastewater treatment to solve the problems set forth in the background art.
Disclosure of Invention
The invention aims to provide a backwashing device for integrated sewage treatment, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a back washing device for integrated sewage treatment comprises a filtering tank, wherein a set of supporting legs are arranged at the lower end of the outer side of the filtering tank, a second blow-off pipe with a valve is fixedly connected between the set of supporting legs at the lower end of the outer side of the filtering tank, an inlet pipe is fixedly connected at one end of the filtering tank, an outlet pipe is fixedly connected at the other end of the filtering tank, a first blow-off pipe with a valve is fixedly connected at the lower end of one end of the filtering tank close to the inlet pipe, an inlet valve is installed at one end of the inner side of the inlet pipe close to the filtering tank, an outlet valve is installed at one end of the inner side of the outlet pipe far from the filtering tank, a back washing assembly is fixedly connected at the top ends of the filtering tank, the outlet pipe and the inlet pipe together, the back washing assembly comprises a back washing tank, an inlet bent, the one end that the inboard of the return bend of intaking is close to the backwash jar installs the manual valve of second, and the lower extreme of the inboard of the return bend of intaking installs the inlet valve, the inboard one end that is close to the backwash jar of play water return bend installs first manual valve, and the upper end in the outside of play water return bend is close to one side fixedly connected with intake pipe of first manual valve area valve, the lower extreme in the outside of play water return bend is close to one side fixedly connected with area valve's backwash pipe of intake pipe, and the outlet valve is installed to the lower extreme of the inboard of play water return bend.
As a further scheme of the invention: the backwashing tank comprises a backwashing tank shell, one end of the backwashing tank shell is fixedly connected with a backwashing water inlet, the other end of the backwashing tank shell is fixedly connected with a backwashing tank cover through a flange plate, one end of the backwashing tank shell, which is close to the lower side of the backwashing water inlet, is provided with a backwashing sewage discharge nozzle, one end of the backwashing sewage discharge nozzle is connected with a threaded plug through threads, one end of the backwashing tank cover is fixedly connected with a backwashing water outlet, and the inner sides of the backwashing tank shell and the backwashing tank cover are jointly provided with a backwashing filter cylinder.
As a still further scheme of the invention: the bottom end of one side of the water inlet bent pipe is fixedly connected with the inlet pipe, the other side of the water inlet bent pipe is fixedly connected with the backwashing water inlet, one side of the water outlet bent pipe is fixedly connected with the backwashing water outlet, and the bottom end of the other side of the water outlet bent pipe is fixedly connected with the outlet pipe.
As a still further scheme of the invention: the filter tank includes a tank shell body, a first-stage filter cartridge is installed to the one end of the inside of tank shell body, and a second-stage filter cartridge is installed to the other end of the inside of tank shell body.
As a still further scheme of the invention: the tank body comprises a first tank and a second tank located on one side of the first tank, the other side of the first tank is fixedly connected with a first tank cover, one side of the second tank is fixedly connected with a second tank cover, the first tank cover is fixedly connected with a first limiting ring of the inner side wall of the second tank, the first tank cover and the inner side wall of the second tank are close to a second limiting ring of the same one side of the first limiting ring, a back flushing spray pipe is arranged on one side, close to the first tank, of the upper end of the second tank in a penetrating mode, the lower end of the second tank is provided with a second drain outlet, and the lower side of one end of the first tank is provided with a first drain outlet.
As a still further scheme of the invention: the one-level cartridge filter includes the filter screen, the one end fixedly connected with annular section of thick bamboo of filter screen, two holding rings of outside fixedly connected with of annular section of thick bamboo.
As a still further scheme of the invention: the two positioning rings are respectively positioned on one side of the corresponding first limiting ring and one side of the corresponding second limiting ring, and the structures of the primary filter cylinder, the secondary filter cylinder and the backwashing filter cylinder are the same.
As a still further scheme of the invention: the top end of the back flushing spray pipe is fixedly connected with the back flushing pipe, the bottom end of the second sewage draining port is fixedly connected with the second sewage draining pipe, and one end of the first sewage draining port is fixedly connected with the first sewage draining pipe.
Compared with the prior art, the invention has the beneficial effects that:
the backwashing assembly has the advantages that the backwashing operation can be respectively carried out on the first-stage filter cylinder and the second-stage filter cylinder in the filter tank through the backwashing pipe and the water outlet bent pipe of the backwashing assembly, so that the backwashing effect can be better, the backwashing operation is more thorough, sewage is filtered through the backwashing filter cylinder of the backwashing tank, the backwashing operation is directly carried out on the first-stage filter cylinder and the second-stage filter cylinder in the filter tank through the sewage, the backwashing is more convenient, and the cost is lower.
Drawings
FIG. 1 is a schematic structural view of a backwashing apparatus for integrated sewage treatment;
FIG. 2 is a schematic view of a partial structure of a backwash assembly in the backwash assembly for integrated sewage treatment;
FIG. 3 is an exploded view of a backwash tank of a backwash assembly for integrated wastewater treatment;
FIG. 4 is a schematic sectional view of a filter tank of a backwash device for integrated sewage treatment;
FIG. 5 is a schematic sectional view of a tank body in a backwashing apparatus for integrated sewage treatment;
FIG. 6 is a schematic structural diagram of a primary filter cylinder in the backwashing device for integrated sewage treatment.
In the figure: 1. a filter tank; 11. a tank housing; 111. a first canister; 112. backwashing the spray pipe; 113. a second canister; 114. a second can lid; 115. a first limit ring; 116. a second stop collar; 117. a first can lid; 118. a first drain port; 119. a second sewage draining outlet; 12. a first-stage filter cartridge; 121. filtering with a screen; 122. a positioning ring; 123. an annular cylinder; 13. a secondary filter cartridge; 2. a second sewage draining pipe; 3. a support leg; 4. an outlet valve; 5. an outlet pipe; 6. a backwash assembly; 61. a backwash tank; 611. backwashing the tank shell; 612. backwashing a water outlet; 613. backwashing the tank cover; 614. backwashing the filter cylinder; 615. back flushing sewage draining nozzle; 616. a threaded plug; 617. backwashing the water inlet; 62. a first manual valve; 63. an air inlet pipe; 64. a water outlet bent pipe; 65. a water outlet valve; 66. a backwash pipe; 67. a water inlet valve; 68. a water inlet bent pipe; 69. a second manual valve; 7. an inlet pipe; 8. an inlet valve; 9. a first drain pipe.
Detailed Description
Referring to fig. 1 to 6, in the embodiment of the present invention, a backwashing device for integrated sewage treatment includes a filter tank 1, a set of support legs 3 is disposed at a lower end of an outer side of the filter tank 1, a second drain pipe 2 with a valve is fixedly connected between the set of support legs 3 at the lower end of the outer side of the filter tank 1, an inlet pipe 7 is fixedly connected to one end of the filter tank 1, an outlet pipe 5 is fixedly connected to the other end of the filter tank 1, a first drain pipe 9 with a valve is fixedly connected to a lower end of the filter tank 1 close to the inlet pipe 7, an inlet valve 8 is installed at an end of an inner side of the inlet pipe 7 close to the filter tank 1, an outlet valve 4 is installed at an end of the inner side of the outlet pipe 5 far from the filter tank 1, a backwashing assembly 6 is fixedly connected to top ends of the filter tank 1, the, a water inlet bent pipe 68 is fixedly connected to one end of the backwashing tank 61, a water outlet bent pipe 64 is fixedly connected to the other end of the backwashing tank 61, a second manual valve 69 is mounted at one end, close to the backwashing tank 61, of the inner side of the water inlet bent pipe 68, a water inlet valve 67 is mounted at the lower end of the inner side of the water inlet bent pipe 68, a first manual valve 62 is mounted at one end, close to the backwashing tank 61, of the inner side of the water outlet bent pipe 64, an air inlet pipe 63 with a valve is fixedly connected to one side, close to the first manual valve 62, of the upper end of the outer side of the water outlet bent pipe 64, a backwashing pipe 66 with a valve is fixedly connected to one side, close to the air inlet pipe 63.
In fig. 3: the backwashing tank 61 comprises a backwashing tank shell 611, one end of the backwashing tank shell 611 is fixedly connected with a backwashing water inlet 617, the other end of the backwashing tank shell 611 is fixedly connected with a backwashing tank cover 613 through a flange, one end of the backwashing tank shell 611 close to the lower side of the backwashing water inlet 617 is provided with a backwashing sewage discharge nozzle 615, one end of the backwashing sewage discharge nozzle 615 is connected with a threaded plug 616 through threads, one end of the backwashing tank cover 613 is fixedly connected with a backwashing water outlet 612, and backwashing filter cylinders 614 are jointly installed on the inner sides of the backwashing tank shell 611 and the backwashing tank cover 613, so that the backwashing filter cylinders 614 can be used for filtering sewage, and the filtered sewage can be directly used for backwashing the primary filter cylinder 12 and the secondary filter cylinder 13 in the filter tank.
In fig. 1 and 2: the bottom end of one side of the water inlet elbow 68 is fixedly connected with the inlet pipe 7, the other side of the water inlet elbow 68 is fixedly connected with the back washing water inlet 617, one side of the water outlet elbow 64 is fixedly connected with the back washing water outlet 612, and the bottom end of the other side of the water outlet elbow 64 is fixedly connected with the outlet pipe 5, so that sewage flowing in from the inlet pipe 7 can flow from the water inlet elbow 68 to the back washing tank 61 for filtering, and the filtered water flows into the filter tank 1 through the water outlet elbow 64 to perform back washing operation on the secondary filter cartridge 13.
In fig. 4: the filter tank 1 includes a tank shell 11, a first-stage filter cartridge 12 is installed to the one end of the inside of the tank shell 11, a second-stage filter cartridge 13 is installed to the other end of the inside of the tank shell 11, and the sewage key can be filtered in stages through the first-stage filter cartridge 12 and the second-stage filter cartridge 13, so that the sewage treatment efficiency can be improved, and the sewage treatment cost can be reduced.
In fig. 5: the tank body 11 comprises a first tank 111 and a second tank 113 positioned on one side of the first tank 111, the other side of the first tank 111 is fixedly connected with a first tank cover 117, one side of the second tank 113 is fixedly connected with a second tank cover 114, the inner side walls of the first tank cover 117 and the second tank cover 114 are fixedly connected with a first limit ring 115, the inner side walls of the first tank 111 and the second tank 113 close to the first limit ring 115 are fixedly connected with a second limit ring 116, one side of the upper end of the second tank 113 close to the first tank 111 is provided with a back washing spray pipe 112 in a penetrating way, the lower end of the second tank 113 is provided with a second sewage outlet 119, the lower side of one end of the first tank cover 117 is provided with a first sewage outlet 118, and the first limit ring 115 and the second limit ring 116 are matched, can fix primary filter cartridge 12 and secondary filter cartridge 13 respectively, stability when having guaranteed rivers and assaulted primary filter cartridge 12 and secondary filter cartridge 13 has been guaranteed.
In fig. 6: the primary filter cartridge 12 comprises a filter screen 121, an annular cylinder 123 fixedly connected with one end of the filter screen 121, and two positioning rings 122 fixedly connected with the outer side of the annular cylinder 123, so that impurities in sewage can be intercepted, and the liquid water is guaranteed to flow smoothly.
In fig. 5 and 6: the two positioning rings 122 are respectively located at one side of the corresponding first and second limiting rings 115 and 116, so that the first and second limiting rings 115 and 116 can tightly clamp the positioning ring 122, thereby ensuring that the primary filter cartridge 12 does not shake, and the primary filter cartridge 12 has the same structure as the secondary filter cartridge 13 and the backwashing filter cartridge 614.
In fig. 2 and 5: the top and the backwash pipe 66 fixed connection of back flush spray pipe 112 to can make the water after filtering wash one-level cartridge filter 12, the bottom and the second blow off pipe 2 fixed connection of second drain 119, thereby make the impurity that back flush in the second grade cartridge filter 13 discharge from second drain 2 smoothly, the one end and the first blow off pipe 9 fixed connection of first drain 118, thereby make the impurity that back flush in the one-level cartridge filter 12 discharge from first drain 9 smoothly.
The working principle of the invention is as follows: in normal sewage treatment, the water inlet valve 67, the backwashing pipe 66, the water outlet valve 65, the air inlet pipe 63, the first sewage discharge pipe 9 and the second sewage discharge pipe 2 are all in a closed state, the inlet valve 8 and the outlet valve 4 are in an open state, sewage flows in from the inlet pipe 7, enters the interior of the filter tank 1 after passing through the inlet valve 8, is filtered by the primary filter cylinder 12 and the secondary filter cylinder 13, solid impurities are intercepted in the primary filter cylinder 12 and the secondary filter cylinder 13, and drained reclaimed water is drained from the outlet pipe 5;
when the solid impurities in the first-stage filter cylinder 12 and the second-stage filter cylinder 13 reach a certain amount, closing the inlet valve 8 and the outlet valve 4, opening the water inlet valve 67, the backwashing pipe 66, the water outlet valve 65, the second manual valve 69, the first manual valve 62, the first sewage discharge pipe 9 and the second sewage discharge pipe 2, allowing sewage to flow in from the inlet pipe 7, enter the water inlet elbow 68, enter the backwashing tank 61, filtering the sewage through the backwashing filter cylinder 614 in the backwashing tank 61, allowing the sewage to flow in the filter tank 1 from the water outlet elbow 64 and the backwashing pipe 66 respectively, allowing the reclaimed water flowing in from the water outlet elbow 64 to perform backwashing on the second-stage filter cylinder 13 directly, so that the impurities trapped in the second-stage filter cylinder 13 are flushed out, the impurities are discharged from the second sewage discharge pipe 2, the reclaimed water flowing in the backwashing pipe 66 enters the backwashing nozzle 112, and then flows out from the backwashing nozzle 112 to flush out the impurities trapped in the first-stage filter cylinder 12, the impurities are discharged from the first sewage discharge pipe 9, if necessary, the air inlet pipe 63 can be opened, and the impact force of water is improved by compressed air in the air inlet pipe 63, so that the backwashing effect is improved;
after the backwashing is finished, the inlet valve 8, the outlet valve 65 and the first manual valve 62 are opened, the threaded plug 616 is removed anticlockwise, the first sewage discharge pipe 9, the second sewage discharge pipe 2, the backwashing pipe 66, the second manual valve 69 and the inlet valve 67 are closed, sewage flowing in through the inlet pipe 7 enters the filtering tank 1 again for filtering, the filtered reclaimed water reversely flows into the backwashing tank 61 from the outlet elbow pipe 64, the backwashing tank 61 is reversely flushed, impurities trapped in the backwashing filter cartridge 614 are discharged from the backwashing sewage discharge nozzle 615, and the whole backwashing operation is finished.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (5)
1. The utility model provides a back washing unit for integration sewage treatment, includes filter tank (1), the lower extreme in the outside of filter tank (1) is provided with a set of landing leg (3), and the lower extreme in the outside of filter tank (1) is located second blow off pipe (2) of fixedly connected with area valve between a set of landing leg (3), the one end fixedly connected with import pipe (7) of filter tank (1), and the other end fixedly connected with outlet pipe (5) of filter tank (1), the one end of filter tank (1) is close to the lower extreme fixedly connected with of import pipe (7) and takes first blow off pipe (9) of valve, import valve (8) are installed to the inboard one end of being close to filter tank (1) of import pipe (7), outlet valve (4) are installed to the inboard one end of keeping away from filter tank (1) of outlet pipe (5), a serial communication port, filter tank (1), The common fixedly connected with back flush subassembly (6) in top of outlet pipe (5) and import pipe (7), back flush subassembly (6) includes back flush tank (61), the one end fixedly connected with of back flush tank (61) is intake return bend (68), and the other end fixedly connected with of back flush tank (61) goes out water return bend (64), the inboard one end that is close to back flush tank (61) of return bend (68) of intaking installs manual valve (69) of second, and intake valve (67) is installed to the lower extreme of the inboard of intake return bend (68) of intaking, the inboard one end that is close to back flush tank (61) of going out water return bend (64) installs first manual valve (62), and the upper end in the outside of going out water return bend (64) is close to one side fixedly connected with intake pipe (63) of first manual valve (62), the lower extreme in the outside of going out water return bend (64) is close to one side fixedly connected with of intake pipe (63) takes the back flush pipe (66) of valve, a water outlet valve (65) is installed at the lower end of the inner side of the water outlet bent pipe (64), the backwashing tank (61) comprises a backwashing tank shell (611), one end of the backwashing tank shell (611) is fixedly connected with a backwashing water inlet (617), the other end of the backwashing tank shell (611) is fixedly connected with a backwashing tank cover (613) through a flange plate, one end of the backwashing tank shell (611) close to the lower side of the backwashing water inlet (617) is provided with a backwashing sewage nozzle (615), one end of the backwashing sewage nozzle (615) is connected with a threaded plug (616) through threads, one end of the backwashing tank cover (613) is fixedly connected with a backwashing water outlet (612), backwashing filter cylinders (614) are installed at the inner sides of the backwashing tank shell (611) and the backwashing tank cover (613) together, the filtering tank (1) comprises a tank shell (11), and a primary filter cylinder (12) is installed at one end of the, and the other end of the inside of the tank shell (11) is provided with a two-stage filter cylinder (13), the tank shell (11) comprises a first tank (111) and a second tank (113) positioned at one side of the first tank (111), the other side of the first tank (111) is fixedly connected with a first tank cover (117), one side of the second tank (113) is fixedly connected with a second tank cover (114), the inner side walls of the first tank cover (117) and the second tank cover (114) are both fixedly connected with a first limit ring (115), the inner side walls of the first tank (111) and the second tank (113) are both fixedly connected with a second limit ring (116), one side of the upper end of the second tank (113) close to the first tank (111) is provided with a backwash spray pipe (112) in a penetrating way, and the lower end of the second tank (113) is provided with a second drain outlet (119), a first drain outlet (118) is provided on the lower side of one end of the first tank cover (117).
2. The backwashing device for integrated sewage treatment according to claim 1, wherein the bottom end of one side of the water inlet elbow (68) is fixedly connected with the inlet pipe (7), the other side of the water inlet elbow (68) is fixedly connected with the backwashing water inlet (617), one side of the water outlet elbow (64) is fixedly connected with the backwashing water outlet (612), and the bottom end of the other side of the water outlet elbow (64) is fixedly connected with the outlet pipe (5).
3. The backwashing device for integrated wastewater treatment according to claim 1, wherein the primary filter cylinder (12) comprises a filter screen (121), an annular cylinder (123) is fixedly connected to one end of the filter screen (121), and two positioning rings (122) are fixedly connected to the outer side of the annular cylinder (123).
4. The backwashing device for integrated wastewater treatment of claim 3, wherein two of said positioning rings (122) are respectively located on one side of the corresponding first and second limiting rings (115, 116), and wherein said primary filter cartridge (12) and said secondary filter cartridge (13) and said backwashing filter cartridge (614) are identical in structure.
5. The backwashing device for integrated sewage treatment of claim 1, wherein the top end of the backwashing nozzle (112) is fixedly connected with the backwashing pipe (66), the bottom end of the second sewage discharge port (119) is fixedly connected with the second sewage discharge pipe (2), and one end of the first sewage discharge port (118) is fixedly connected with the first sewage discharge pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911071639.8A CN110812930B (en) | 2019-11-05 | 2019-11-05 | A back flush unit for integration sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911071639.8A CN110812930B (en) | 2019-11-05 | 2019-11-05 | A back flush unit for integration sewage treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110812930A CN110812930A (en) | 2020-02-21 |
| CN110812930B true CN110812930B (en) | 2020-10-23 |
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| CN201911071639.8A Active CN110812930B (en) | 2019-11-05 | 2019-11-05 | A back flush unit for integration sewage treatment |
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| CN113713486A (en) * | 2021-09-15 | 2021-11-30 | 义乌市水处理有限责任公司 | Flushing system of internal inflow type screen plate grid cleaner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101249341A (en) * | 2008-03-28 | 2008-08-27 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Bounce-back type multilevel water flush purifier |
| CN202015533U (en) * | 2011-03-21 | 2011-10-26 | 吴端钦 | Mine filter device |
| CN206867810U (en) * | 2017-04-11 | 2018-01-12 | 福建海屹舰船设备有限公司 | A kind of highly effective sea-water filter |
| CN107321020A (en) * | 2017-06-15 | 2017-11-07 | 广西碧水泉水业有限公司 | A kind of filtering trough of sanitary sewage automated cleaning |
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