CN111643947A - Primary sewage pulse type solid-liquid separation treatment device - Google Patents
Primary sewage pulse type solid-liquid separation treatment device Download PDFInfo
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- CN111643947A CN111643947A CN202010502855.XA CN202010502855A CN111643947A CN 111643947 A CN111643947 A CN 111643947A CN 202010502855 A CN202010502855 A CN 202010502855A CN 111643947 A CN111643947 A CN 111643947A
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- sewage
- pipe
- tank body
- storage tank
- liquid separation
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- 239000010865 sewage Substances 0.000 title claims abstract description 88
- 238000000926 separation method Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 239000008213 purified water Substances 0.000 claims abstract description 33
- 239000004744 fabric Substances 0.000 claims abstract description 27
- 238000001914 filtration Methods 0.000 claims abstract description 23
- 239000007921 spray Substances 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 description 12
- 238000011001 backwashing Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 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
- B01D29/50—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
- B01D29/52—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 in parallel connection
-
- 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
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward 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
- B01D29/62—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
-
- 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
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a pulse type solid-liquid separation treatment device for raw sewage, which comprises a main tank body, wherein an auxiliary tank body is connected to the upper side of the main tank body, a plurality of net barrel racks are arranged in the main tank body, filter cloth bags are arranged on the outer sides of the net barrel racks, the main tank body is connected with a middle water inlet pipe, the middle water inlet pipe is provided with a first valve and a first power pump, the middle water inlet pipe is connected with a sewage storage tank, a sewage backflow pipe is connected between the main tank body and the sewage storage tank and provided with a second valve, the auxiliary tank body is connected with a middle water outlet pipe, the middle water outlet pipe is connected with a purified water storage tank, a back flushing pipe is arranged in the auxiliary tank body, the back flushing pipe is connected with nozzles which correspond to the net barrel racks one by one, the back flushing pipe; the invention is used for the primary sewage treatment, realizes the solid-liquid separation of the sewage, adopts the cloth bag type filtering structure and has the function of automatic cleaning.
Description
Technical Field
The invention belongs to the technical field of sewage treatment equipment, and particularly relates to a primary sewage pulse type solid-liquid separation treatment device.
Background
Along with the rapid development of economy in China, the discharge amount of industrial and domestic sewage is increasing day by day, how to change waste into valuables and reuse the primary sewage is receiving more and more attention from society. The primary sewage source heat pump recycles low-grade energy in primary sewage, fully embodies the advantages of changing waste into valuable and reducing initial investment. However, the water quality condition of the primary sewage is severe, the content of solid impurities in the sewage is high, and if the primary sewage directly enters the heat pump heat exchanger, the heat pump heat exchanger is easy to scale and block, so that the normal operation of the heat pump air conditioner is influenced. The traditional solution is to build a large-scale sewage tank or use a sewage anti-blocking machine, the cost of building the large-scale sewage tank is higher, when the sewage anti-blocking machine is used, the operation life of the sewage anti-blocking machine is short, and the equipment cost is high, so that a raw sewage filter is developed, the quality of sewage entering a heat pump heat exchanger is improved, the requirement of the heat exchanger on the quality of raw sewage is met, and the practical significance is very important.
The existing primary sewage treatment filtering device generally utilizes the working principle of centrifugal rotational flow and is matched with the filtering device to realize the solid impurity separation and pollution discharge of the primary sewage. The sewage treatment effect of the device is poor, the impurities are more after treatment, the treatment capacity is rapidly reduced along with the accumulation of the impurities, the device needs to be cleaned regularly, and the internal structure is not easy to clean.
Disclosure of Invention
The invention aims to provide a primary sewage pulse type solid-liquid separation treatment device, which is used for primary sewage treatment to realize solid-liquid separation of sewage, adopts a cloth bag type filtering structure and has a cloth bag recoil automatic cleaning function.
In order to achieve the purpose, the invention provides the following technical scheme: a primary sewage pulse type solid-liquid separation treatment device comprises a main box body, wherein supporting legs are arranged on the lower side of the main box body, a conical part is arranged at the lower end of the main box body, a blow-off pipe is connected with the lower end of the conical part, an auxiliary box body is integrally connected with the upper side of the main box body, a plurality of net barrel frames are uniformly and vertically arranged in the main box body, the upper ends of the net barrel frames penetrate through the upper side wall of the main box body and extend into the auxiliary box body, filter cloth bags are arranged on the outer sides of the net barrel frames, a middle water inlet pipe is connected with the lower part of the main box body, a first valve and a first power pump are arranged on the middle water inlet pipe, a sewage storage tank is connected with the sewage inlet pipe, a sewage return pipe is connected between the upper part of the main, the water purification storage tank is connected with a water purification outlet pipe, a backwashing water pipe is arranged in the auxiliary tank body, the backwashing water pipe is connected with spray heads which are in one-to-one correspondence with the net barrel frames, the backwashing water pipe is provided with a pulse valve and a second power pump, and the backwashing water pipe is connected with the water purification storage tank through a water purification return pipe.
Further, a spiral conveying blade is arranged in the sewage discharge pipe, and a motor for driving the spiral conveying blade to rotate is arranged at one end of the sewage discharge pipe.
Furthermore, the lower side wall of the auxiliary box body is the upper side wall of the main box body, the upper side wall of the main box body is provided with a through hole communicated with the auxiliary box body, the upper end of the mesh cylinder frame is positioned in the through hole, and the mesh cylinder frame is fixedly connected with the upper side wall of the main box body.
Furthermore, the bag opening of the filter cloth bag is connected with the lower side edge of the through hole on the upper side wall of the main box body in a sealing manner.
Furthermore, the lower part of the sewage storage tank is connected with the middle water inlet pipe, and the upper part of the sewage storage tank is connected with the sewage inlet pipe and the sewage return pipe.
Furthermore, the lower part of the purified water storage tank is connected with a purified water return pipe, and the upper part of the purified water storage tank is connected with a middle water outlet pipe and a purified water outlet pipe.
The invention has the following beneficial effects:
according to the invention, through the sewage treatment structure of the filtering cloth bag, the treatment effect of the primary sewage is greatly improved, impurities in the treated water flow are obviously reduced, and through the sewage discharge pipe of the spiral conveying structure, the sewage discharge capacity is enhanced, so that the improvement of the amount of the filtered sewage of the sewage treatment structure is adapted;
the invention realizes the cleaning of the accumulated dirt on the outer side of the filtering cloth bag through the back flushing structure, has high efficiency and good effect, ensures that the sewage treatment capability of the filtering cloth bag is not excessively attenuated, prolongs the service life of the device, prevents blockage and reduces the cleaning labor intensity;
the invention utilizes the treated purified water to carry out the back flushing on the filter cloth bag circularly, saves water resources, is self-sufficient, has excellent effect, does not depend on an external water source, discharges part of back flushing impurities through the blow-off pipe, re-filters part of the back flushing impurities, has novel design and stable operation.
Drawings
FIG. 1 is a schematic view of a flow of wastewater in a wastewater treatment state according to the present invention.
FIG. 2 is a schematic view of the backflush clean state water flow of the present invention.
In the figure: 1. the device comprises a main box body, 2, supporting legs, 3, an auxiliary box body, 4, a conical part, 5, a blow-off pipe, 6, a mesh barrel frame, 7, a filtering cloth bag, 8, a middle water inlet pipe, 9, a first valve, 10, a first power pump, 11, a sewage storage tank, 12, a sewage water inlet pipe, 13, a sewage return pipe, 14, a second valve, 15, a middle water outlet pipe, 16, a third valve, 17, a purified water storage tank, 18, a purified water outlet pipe, 19, a backwashing water pipe, 20, a spray head, 21, a pulse valve, 22, a second power pump, 23 and a purified water return pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "middle", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-2, the embodiment provides a primary sewage pulse type solid-liquid separation treatment device, which comprises a main tank body 1, wherein the lower side of the main tank body 1 is provided with supporting legs 2, the lower end of the main tank body 1 is provided with a conical part 4, the lower end of the conical part 1 is connected with a sewage discharge pipe 5, the upper side of the main tank body 1 is integrally connected with an auxiliary tank body 3, a plurality of net barrel frames 6 are uniformly and vertically arranged in the main tank body 1, the upper ends of the net barrel frames 6 penetrate through the upper side wall of the main tank body 1 and extend into the auxiliary tank body 3, the outer sides of the net barrel frames 6 are respectively provided with a filter cloth bag 7, the lower part of the main tank body 1 is connected with a middle water inlet pipe 8, the middle water inlet pipe 8 is provided with a first valve 9 and a first power pump 10, the middle water inlet pipe 8 is connected with a, the auxiliary box body 3 is connected with an intermediate water outlet pipe 15, the intermediate water outlet pipe 15 is provided with a third valve 16, the intermediate water outlet pipe 15 is connected with a purified water storage tank 17, the purified water storage tank 17 is connected with a purified water outlet pipe 18, a backwashing water pipe 19 is arranged in the auxiliary box body 3, the backwashing water pipe 19 is connected with spray heads 20 in one-to-one correspondence with the net barrel frame 6, the spray heads 20 face the inside of the net barrel frame 6 and face the inner side of the filtering cloth bag 7, the backwashing water pipe 19 is provided with a pulse valve 21 and a second power pump 22, and the backwashing water pipe 19 is connected with the purified water.
In order to enhance the sewage discharge capability of the sewage discharge pipe 5 and avoid the blockage of the sewage discharge pipe 5, in the embodiment, a spiral conveying blade is arranged in the sewage discharge pipe 5, and one end of the sewage discharge pipe 5 is provided with a motor for driving the spiral conveying blade to rotate.
In order to make the purified water passing through the filtering cloth bag 7 enter the auxiliary box body 3 through the net cylinder frame 6, in the embodiment, the lower side wall of the auxiliary box body 3 is the upper side wall of the main box body 1, the upper side wall of the main box body 1 is provided with a through hole communicated with the auxiliary box body 3, the upper end of the net cylinder frame 6 is positioned in the through hole, and the net cylinder frame 6 is fixedly connected with the upper side wall of the main box body 1.
In order to make sewage flow through the filtering cloth bag 7, in this embodiment, the bag opening of the filtering cloth bag 7 is hermetically connected with the lower side edge of the through hole on the upper side wall of the main box 1.
In order to ensure the stable operation of the device and the stable conduction of the filtered water flow, in this embodiment, the lower part of the sewage storage tank 11 is connected with the middle water inlet pipe 8, and the upper part of the sewage storage tank 11 is connected with the sewage inlet pipe 12 and the sewage return pipe 13.
In order to ensure the stable operation of the device and the stable conduction of the backflushing water flow, in this embodiment, the lower part of the purified water storage tank 17 is connected with the purified water return pipe 23, and the upper part of the purified water storage tank 17 is connected with the middle water outlet pipe 15 and the purified water outlet pipe 18.
The working principle of the invention is as follows: in the sewage filtering state, the first valve 9, the third valve 16 and the first power pump 10 are opened, and the second valve 14, the pulse valve 21 and the second power pump 22 are closed; sewage enters a sewage storage tank 11 from a sewage inlet pipe 12, the sewage storage tank 11 temporarily stores the sewage, a first power pump 10 guides the sewage in the sewage storage tank 11 into a main tank body 1 through a middle inlet pipe 8, the sewage entering the main tank body 1 is diffused and expanded in volume, and a part of impurities with larger volume enter a conical part 4 of the main tank body 1 under the action of inertia or natural sedimentation and are periodically discharged through a discharge pipe 5; the rest impurities with smaller volume rise along with the water flow and pass through the filtering cloth bag 7, the impurities are retained at the outer side of the filtering cloth bag 7, the purified water flow enters the auxiliary box body 3 through the mesh barrel frame 6 and then enters the purified water storage tank 17 through the middle water outlet pipe 15, the purified water storage tank 17 temporarily stores the purified water, and the purified water is discharged from the purified water outlet pipe 18 along with the accumulation of the water;
self-cleaning backflushing: along with the continuous filtration, impurities on the outer side of the filter cloth bag 7 are accumulated continuously, the resistance is increased gradually, and the filter cloth bag 7 needs to be backflushed; the first valve 9, the third valve 16 and the first power pump 10 are closed, the second valve 14 and the second power pump 22 are opened, the pulse valve 21 is opened, the second power pump 22 leads the purified water in the purified water storage tank 17 into the backwashing water pipe 19 through the purified water return pipe 23, the water in the backwashing water pipe 19 has high pressure, the pulse valve 21 sprays high-pressure water flow into the inside of the net barrel frame 6 and the inner side of the filtering cloth bag 7 through the spray head 20, the filtering cloth bag 7 rapidly expands and generates strong shaking, so that impurities accumulated on the outer side of the filtering cloth bag 7 shake off and fall into the conical part 4 of the main tank body 1, and the purpose of self-cleaning of the filtering cloth bag 7 is achieved; part of the reverse water flow passing through the filtering cloth bag 7 returns to the sewage storage tank 11 through the sewage return pipe 13, so that the excessive water pressure in the main tank body 1 is avoided, and the stable operation of the structure is ensured.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (6)
1. The utility model provides a primary sewage pulsed solid-liquid separation processing apparatus, includes the main tank body, its characterized in that: the lower side of the main tank body is provided with a supporting leg, the lower end of the main tank body is provided with a conical part, the lower end of the conical part is connected with a blow-off pipe, the upper side of the main tank body is integrally connected with an auxiliary tank body, a plurality of net barrel frames are uniformly and vertically arranged in the main tank body, the upper ends of the net barrel frames penetrate through the upper side wall of the main tank body and extend into the auxiliary tank body, the outer sides of the net barrel frames are respectively provided with a filtering cloth bag, the lower part of the main tank body is connected with a middle water inlet pipe, the middle water inlet pipe is provided with a first valve and a first power pump, the middle water inlet pipe is connected with a sewage storage tank, the sewage storage tank is connected with a sewage inlet pipe, a sewage return pipe is connected between the upper part of the main tank body, the backwash water pipe is connected with spray heads which are in one-to-one correspondence with the net barrel frame, the backwash water pipe is provided with a pulse valve and a second power pump, and the backwash water pipe is connected with the purified water storage tank through a purified water return pipe.
2. The pulse type solid-liquid separation treatment device for primary sewage of claim 1, which is characterized in that: a spiral conveying blade is arranged in the drain pipe, and a motor for driving the spiral conveying blade to rotate is arranged at one end of the drain pipe.
3. The pulse type solid-liquid separation treatment device for primary sewage of claim 2, which is characterized in that: the lower side wall of the auxiliary box body is the upper side wall of the main box body, the upper side wall of the main box body is provided with a through hole communicated with the auxiliary box body, the upper end of the mesh cylinder frame is positioned in the through hole, and the mesh cylinder frame is fixedly connected with the upper side wall of the main box body.
4. The pulse type solid-liquid separation treatment device for primary sewage of claim 3, characterized in that: the bag mouth of the filtering cloth bag is hermetically connected with the lower side edge of the through hole on the upper side wall of the main box body.
5. The pulse type solid-liquid separation treatment device for primary sewage of claim 4, which is characterized in that: the lower part of the sewage storage tank is connected with the middle water inlet pipe, and the upper part of the sewage storage tank is connected with the sewage inlet pipe and the sewage return pipe.
6. The pulse type solid-liquid separation treatment device for primary sewage of claim 5, which is characterized in that: the lower part of the purified water storage tank is connected with a purified water return pipe, and the upper part of the purified water storage tank is connected with a middle water outlet pipe and a purified water outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010502855.XA CN111643947A (en) | 2020-06-05 | 2020-06-05 | Primary sewage pulse type solid-liquid separation treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010502855.XA CN111643947A (en) | 2020-06-05 | 2020-06-05 | Primary sewage pulse type solid-liquid separation treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111643947A true CN111643947A (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010502855.XA Pending CN111643947A (en) | 2020-06-05 | 2020-06-05 | Primary sewage pulse type solid-liquid separation treatment device |
Country Status (1)
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| CN (1) | CN111643947A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011131A (en) * | 2021-09-29 | 2022-02-08 | 国能龙源环保南京有限公司 | Concentration device and method for biogas residue liquid discharged by anaerobic fermentation tank |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028022A (en) * | 2014-05-27 | 2014-09-10 | 大庆高新区百世环保科技开发有限公司 | Pulse backflushing bag-type sewage fine filter device |
| CN203899249U (en) * | 2014-06-25 | 2014-10-29 | 北京美斯顿科技开发有限公司 | Automatic back-flush filter with compound filter element |
| CN107970658A (en) * | 2017-12-04 | 2018-05-01 | 上海大张过滤设备有限公司 | Candle filter |
| CN207641132U (en) * | 2017-11-12 | 2018-07-24 | 山东新阳光环保设备股份有限公司 | A kind of potential energy pocket type filtered gray water device |
-
2020
- 2020-06-05 CN CN202010502855.XA patent/CN111643947A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028022A (en) * | 2014-05-27 | 2014-09-10 | 大庆高新区百世环保科技开发有限公司 | Pulse backflushing bag-type sewage fine filter device |
| CN203899249U (en) * | 2014-06-25 | 2014-10-29 | 北京美斯顿科技开发有限公司 | Automatic back-flush filter with compound filter element |
| CN207641132U (en) * | 2017-11-12 | 2018-07-24 | 山东新阳光环保设备股份有限公司 | A kind of potential energy pocket type filtered gray water device |
| CN107970658A (en) * | 2017-12-04 | 2018-05-01 | 上海大张过滤设备有限公司 | Candle filter |
Non-Patent Citations (2)
| Title |
|---|
| 任霄编著: "《成都特殊地质条件下地铁盾构选型与施工关键技术》", 31 December 2018, 成都西南交通大学出版社 * |
| 李燕主编: "《水污染控制工程》", 31 January 2017, 徐州：中国矿业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011131A (en) * | 2021-09-29 | 2022-02-08 | 国能龙源环保南京有限公司 | Concentration device and method for biogas residue liquid discharged by anaerobic fermentation tank |
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Application publication date: 20200911 |