CN105498316A - Multi-medium filtering method and filtering device thereof - Google Patents
Multi-medium filtering method and filtering device thereof Download PDFInfo
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- CN105498316A CN105498316A CN201511019265.7A CN201511019265A CN105498316A CN 105498316 A CN105498316 A CN 105498316A CN 201511019265 A CN201511019265 A CN 201511019265A CN 105498316 A CN105498316 A CN 105498316A
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- China
- Prior art keywords
- backwash
- water
- material layer
- water inlet
- outlet
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
- B01D24/12—Downward filtration, the filtering material being supported by pervious surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
- B01D24/4636—Counter-current flushing, e.g. by air with backwash shoes; with nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2101/00—Types of filters having loose filtering material
- B01D2101/02—Carbon filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2101/00—Types of filters having loose filtering material
- B01D2101/04—Sand or gravel filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/08—Regeneration of the filter
- B01D2201/087—Regeneration of the filter using gas bubbles, e.g. air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/08—Regeneration of the filter
- B01D2201/088—Arrangements for killing microorganisms
Abstract
The invention discloses a multi-medium filtering method which comprises the following steps: firstly, manually opening an unloading hole and forming a material loading layer and a filtering layer in a barrel; transferring waste water to a water inlet from a water tank through a backwash pump; opening valves at the water inlet and a positive washing drainage outlet; guiding the waste water into the barrel through an upper pipeline and draining from the positive washing drainage outlet; automatically opening a valve at a water outlet and automatically closing the valve at the positive washing drainage outlet when water from the positive washing drainage outlet becomes clear; transferring water from a backwash water reservoir to a backwash water inlet through the backwash pump and introducing air into a compressed air hole; automatically opening valves at a backwash drainage hole and an exhaust pipe while backwashing; automatically closing the compressed air hole after backwashing, automatically closing the backwash water inlet after 3-5min and continuing backwashing. According to the method provided by the invention, the stability and balance of system pressure drop and the long-term high-efficient filtering capacity of the filtering layer are ensured; the water quality is promoted; the waste of resource is avoided. The invention also discloses a multi-medium filtering device.
Description
Technical field
The present invention relates to the technical field of sewage disposal, specifically a kind of multi-medium filtering method and filter plant thereof.
Background technology
More medium filter utilizes one or more filter mediums, under pressure water higher for turbidity is passed through certain thickness granular or non-grain material, thus effective removing suspended impurity makes the process of clarification of water, conventional filtrate has quartz sand, anthracite, manganese sand etc., be mainly used in water treatment turbidity removal, demineralized water, the prime pretreatment etc. of pure water, delivery turbidity can reach less than 3 degree; In industrial circulation water treatment system, mainly in order to remove dirty impurities in water, absorption wet goods, requirement water quality being met recycle, the suspension in water or colloidal state impurity can also be removed in addition, particularly effectively can remove fine particle and bacterium etc. that sedimentation can not be removed, BOD5 and COD etc. also have removal effect to a certain degree.But existing multi-medium filtering method also exists certain drawback, such as tiny in the course of the work impurity may enter delivery port with current, causes the dirt of pipeline to block up, is easy to the rising causing system pressure drop, and then affects the normal operation of equipment; And after using for a long time, its filter material layer retains and adsorbs a certain amount of foreign material and spot, the filter capacity of filter material layer weakens to some extent, effluent quality declines greatly, add staff cannot monitor water quality at any time, the water quality of therefore discharging will cause a large amount of wastings of resources follow-up once not reach discharge standard, does not meet very much the new demand of current low-carbon environment-friendly.
Summary of the invention
Goal of the invention: in order to overcome above deficiency, the object of this invention is to provide a kind of multi-medium filtering method, this method ensure that the stable equilibrium of system pressure drop, and the long-term filter capacity efficiently of filter material layer can be kept, thus improve the quality of water quality, avoid the waste that following resource is unnecessary, meet very much the theory of current low-carbon environment-friendly.Another technical problem that will solve of the present invention also will provide a kind of filter plant realizing this multi-medium filtering method.
Technical scheme: in order to realize above object, a kind of multi-medium filtering method of the present invention and filter plant thereof, comprising: cylindrical shell, water inlet, delivery port, just wash discharge outlet, backwash water inlet, backwash discharge outlet, compressed air mouth, blast pipe, upper pipeline, lower pipeline, discharge port, bearing material layer and filter material layer, described cylindrical shell is connected to pipeline and lower pipeline, described upper pipeline guides water inlet and backwash discharge outlet respectively into, described lower pipeline guides delivery port into respectively, just washing discharge outlet and backwash discharge outlet, wherein forward is flushed through filter material layer and effectively filters suspended impurity in water and bacterium, thus play the effect of clean sewage, and back flush makes flow reversal pass through filter material layer, filtering layer is expanded, suspend, and by the shearing force of current and the collision friction power cleaning filter material layer of particle, the dirt in filter material layer is made to depart from and discharge with backwash water, thus stablize the pressure differential of intake-outlet, also well ensure that its good strainability simultaneously, described cylindrical shell outside is connected to compressed air mouth, blast pipe and discharge port, and compressed air of its conveying can coordinate back flush stablize the pressure differential of intake-outlet further, while also can the dust impurities of eliminating equipment internal residual, described inner barrel is provided with bearing material layer, and described filter material layer is located at above bearing material layer.
Preferably, above-mentioned a kind of multi-medium filtering filter plant, described inner barrel covers one deck natural rubber liner, thus the erosion wear that minimizing water, air are long-term to equipment inner wall, and this material non-toxic is harmless, low-carbon environment-friendly.
The invention provides a kind of multi-medium filtering method, comprise the following steps:
(1), manually open discharge port, load clean gravel as bearing material layer in inner barrel, quartz sand-pottery that loading is cleaned or active carbon-magnetic iron ore, as filter material layer, close discharge port;
(2), start power supply, sewage is sent to water inlet by collecting-tank by recoil pump;
(3), water inlet and just washing the valve opening of discharge outlet;
(4), sewage enters inner barrel by upper pipeline, and the filtration of the bed of material is sent to lower pipeline after filtration, then by just washing discharge outlet water outlet;
(5), when just washing discharge outlet water outlet and being limpid, the valve of delivery port is opened automatically, and the valve just washing discharge outlet is closed automatically;
(6) water, after process carries out water outlet by delivery port;
Equipment is after long-play, and filter material layer retains and adsorbs a certain amount of foreign material and spot, and effluent quality declines, and water outlet pressure reduction increases, and when pressure reduction increases by 0.05-0.07Mpa, equipment carries out air water associating backwash automatically;
(7), the valve of water inlet and delivery port closes automatically, and the valve of backwash water inlet and compressed air mouth is opened automatically;
(8), water is sent to backwash water inlet by backwash storage cistern by recoil pump, and air is passed into compressed air mouth;
(9) valve of, backwash discharge outlet and blast pipe is opened automatically;
(10), air forms air pocket in uphill process in bearing material layer, then becomes minute bubbles at filter material layer, thus produces scrubbing action to filter material surface; Backwash water top pine filter material layer, makes filter material layer be suspended state, thus is beneficial to the scouring of air to filtrate simultaneously; The expansion of its backwash water and backwash air superposes mutually, during than single carrying out, acts on stronger;
(11), air discharged by blast pipe, and backwash water is sent to backwash discharge outlet by upper hose, and is discharged by backwash discharge outlet;
(12), backwash complete after compressed air mouth automatically close, after 3-5min, backwash water inlet is closed automatically, proceeds back flush and removes the bubble be retained in filter bed;
(13), the valve of backwash discharge outlet and blast pipe closes automatically, continues to start just washed filter work next time.
Preferably, a kind of above-mentioned multi-medium filtering method, shows the pressure differential of intake-outlet in real time, thus facilitates staff to check at any time, ensure the normal operation of equipment during the Pressure gauge work that described water inlet and delivery port are provided with.
Preferably, a kind of above-mentioned multi-medium filtering method, described cylindrical shell is before inside loading gravel is as bearing material layer, and arrange the cobble grain of uniform arrangement in advance on bearing material layer surface, its cobble grain prevents a small amount of Powdered Activated Carbon and trash flow to delivery port.
Preferably, a kind of above-mentioned multi-medium filtering method, the filtrate filter footpath, upper strata of described filter material layer is greater than lower floor's filtrate filter footpath, thus ensures the validity of lower floor's filtrate and make full use of, and improves filter effect.
Preferably, a kind of above-mentioned multi-medium filtering method, described cylindrical shell is also connected to Inlet and outlet water sampler, automatically detects water quality in the course of work, thus ensures effluent characteristics, avoids the waste that following resource is unnecessary.
Beneficial effect: prior art is compared, the present invention has the following advantages:
1, a kind of multi-medium filtering equipment described in the present invention, its forward rinses the effect playing clean sewage, back flush makes the dirt in filter material layer depart from and discharge with backwash water, thus stablizes the pressure differential of intake-outlet, also well ensure that its good strainability simultaneously; Compressed air of its conveying can coordinate back flush stablize the pressure differential of intake-outlet further in addition, while also can the dust impurities of eliminating equipment internal residual.
2, a kind of multi-medium filtering equipment described in the present invention, covering one deck natural rubber liner of its inner barrel decreases water, the air erosion wear long-term to equipment inner wall, and this material non-toxic is harmless, low-carbon environment-friendly.
3, a kind of multi-medium filtering method described in the present invention, air forms air pocket in bearing material layer, then becomes minute bubbles at filter material layer, thus produces scrubbing action to filter material surface; And backwash water filter material layer is suspended state, thus be beneficial to the scouring of air to filtrate; The expansion of its backwash water and backwash air superposes mutually in addition, stronger than single mode effect.
4, a kind of multi-medium filtering method described in the present invention, shows the pressure differential of intake-outlet in real time, thus facilitates staff to check at any time, ensure the normal operation of equipment during the Pressure gauge work that water inlet and delivery port are provided with.
5, a kind of multi-medium filtering method described in the present invention, the cobble grain arranged on bearing material layer surface in advance prevents a small amount of Powdered Activated Carbon and trash flow to delivery port.
6, a kind of multi-medium filtering method described in the present invention, its filtrate filter footpath, upper strata is greater than lower floor's filtrate filter footpath, ensure that the validity of lower floor's filtrate and makes full use of, improve filter effect; The Inlet and outlet water sampler that cylindrical shell is connected in addition detects water quality in the course of the work automatically, thus ensures effluent characteristics, avoids the waste that following resource is unnecessary.
Accompanying drawing explanation
Fig. 1 is the external overall structural representation of filter plant in the present invention;
Fig. 2 is the inside partial structurtes schematic diagram of filter plant in the present invention.
In figure: 1 cylindrical shell, 2 water inlets, 3 delivery ports, 4 are just washing pipeline on discharge outlet, 5 backwash water inlets, 6 backwash discharge outlet, 7 compressed air mouths, 8 blast pipes, 9,10 times pipelines, 11 discharge ports, 12 bearing material layers, 13 filter material layers.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of multi-medium filtering equipment of the present embodiment, comprising: cylindrical shell 1, water inlet 2, delivery port 3, just wash discharge outlet 4, backwash water inlet 5, backwash discharge outlet 6, compressed air mouth 7, blast pipe 8, upper pipeline 9, lower pipeline 10, discharge port 11, bearing material layer 12 and filter material layer 13, its cylindrical shell 1 is connected to pipeline 9 and lower pipeline 10, upper pipeline 9 guides water inlet 2 and backwash discharge outlet 6 respectively into, delivery port 3 guided respectively into by lower pipeline 10, just washing discharge outlet 4 and backwash discharge outlet 5, its forward is flushed through suspended impurity and bacterium in filter material layer 13 pairs of water and effectively filters, thus play the effect of clean sewage, and back flush makes flow reversal by filter material layer 13, filter material layer 13 is expanded, suspend, and by the shearing force of current and the collision friction power cleaning filter material layer 13 of particle, the dirt in filter material layer 13 is made to depart from and discharge with backwash water, thus stablize the pressure differential of intake-outlet, also well ensure that its good strainability simultaneously, its cylindrical shell 1 outside is connected to compressed air mouth 7, blast pipe 8 and discharge port 11, and the compressed air of conveying can coordinate back flush to stablize the pressure differential of intake-outlet further, simultaneously also can the dust impurities of eliminating equipment internal residual, its cylindrical shell 1 inside is provided with bearing material layer 12, and filter material layer 13 is located at above bearing material layer 12.
It is preferred further that its cylindrical shell 1 inside covers one deck natural rubber liner as shown in Figure 1 and Figure 2, thus the erosion wear that minimizing water, air are long-term to equipment inner wall, and this material non-toxic is harmless, low-carbon environment-friendly.
As shown in Figure 1 and Figure 2, a kind of multi-medium filtering method of the present embodiment: comprise the following steps:
(1), manually open discharge port 11, load clean gravel as bearing material layer 12 in cylindrical shell 1 inside, active carbon-magnetic iron ore that loading is cleaned, as filter material layer 13, closes discharge port 11;
(2), start power supply, sewage is sent to water inlet 2 by collecting-tank by recoil pump;
(3), water inlet 2 and just washing the valve opening of discharge outlet 4;
(4), that sewage enters cylindrical shell 1 by upper pipeline 9 is inner, and the filtration of the bed of material 13 is sent to lower pipeline 10 after filtration, then by just washing discharge outlet 4 water outlet;
(5), when just washing discharge outlet 4 water outlet and being limpid, the valve of delivery port 3 is opened automatically, and the valve just washing discharge outlet 4 is closed automatically;
(6) water, after process carries out water outlet by delivery port 3;
Equipment is after long-play, and filter material layer 13 retains and adsorbs a certain amount of foreign material and spot, and effluent quality declines, and water outlet pressure reduction increases, and when pressure reduction increases by 0.05-0.07Mpa, equipment carries out air water associating backwash automatically;
(7), the valve of water inlet 2 and delivery port 3 closes automatically, and the valve of backwash water inlet 5 and compressed air mouth 7 is opened automatically;
(8), water is sent to backwash water inlet 7 by backwash storage cistern by recoil pump, and air is passed into compressed air mouth 7;
(9) valve of, backwash discharge outlet 6 and blast pipe 8 is opened automatically;
(10), air in uphill process in bearing material layer 12 formed air pocket, then become minute bubbles at filter material layer 13, thus to filter material surface produce scrubbing action; Backwash water top pine filter material layer 13 simultaneously, makes filter material layer 13 in suspended state, thus is beneficial to the scouring of air to filtrate; The expansion of its backwash water and backwash air, two kinds of mutual superpositions of mode are stronger;
(11), air discharged by blast pipe 8, and backwash water is sent to backwash discharge outlet 6 by upper hose 9, and is discharged by backwash discharge outlet 6;
(12), backwash complete after compressed air mouth 7 automatically close, after 3-5min, backwash water inlet 5 is closed automatically, proceeds back flush and removes the bubble be retained in filter bed;
(13), the valve of backwash discharge outlet 6 and blast pipe 8 closes automatically, continues to start just washed filter work next time.
Further preferably as shown in Figure 1 and Figure 2, during work: the pressure differential showing intake-outlet during the Pressure gauge work that its water inlet 2 and delivery port 3 are provided with in real time, thus facilitate staff to check at any time, ensure the normal operation of equipment; Its cylindrical shell 1 is before inside loading gravel is as bearing material layer 12, and arrange the cobble grain of uniform arrangement in advance on bearing material layer 12 surface, its cobble grain prevents a small amount of Powdered Activated Carbon and trash flow to delivery port; The filtrate filter footpath, upper strata of its filter material layer 13 is greater than lower floor's filtrate filter footpath, thus ensures the validity of lower floor's filtrate and make full use of, and improves filter effect; Its cylindrical shell 1 is also connected to Inlet and outlet water sampler, automatically detects water quality in the course of work, thus ensures effluent characteristics, avoids the waste that following resource is unnecessary.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvement, and these improvement also should be considered as protection scope of the present invention.
Claims (7)
1. a multi-medium filtering equipment, is characterized in that: comprising: cylindrical shell (1), water inlet (2), delivery port (3), just wash discharge outlet (4), backwash water inlet (5), backwash discharge outlet (6), compressed air mouth (7), blast pipe (8), upper pipeline (9), lower pipeline (10), discharge port (11), bearing material layer (12) and filter material layer (13);
Described cylindrical shell (1) is connected to pipeline (9) and lower pipeline (10), described upper pipeline (9) guides water inlet (2) and backwash discharge outlet (6) respectively into, and described lower pipeline (10) is guided delivery port (3) respectively into, just washed discharge outlet (4) and backwash discharge outlet (5); Described cylindrical shell (1) outside is connected to compressed air mouth (7), blast pipe (8) and discharge port (11), and inside is provided with bearing material layer (12), and described filter material layer (13) is located at bearing material layer (12) top.
2. a kind of multi-medium filtering equipment according to claim 1, is characterized in that: described cylindrical shell (1) inside covers one deck natural rubber liner.
3. a multi-medium filtering method, is characterized in that: comprise the following steps:
(1), manually open discharge port (11), load clean gravel as bearing material layer (12) in cylindrical shell (1) inside, quartz sand-pottery that loading is cleaned or active carbon-magnetic iron ore, as filter material layer (13), close discharge port (11);
(2), start power supply, sewage is sent to water inlet (2) by collecting-tank by recoil pump;
(3), water inlet (2) and just washing the valve opening of discharge outlet (4);
(4), that sewage enters cylindrical shell (1) by upper pipeline (9) is inner, and the filtration of the bed of material (13) is sent to lower pipeline (10) after filtration, then by just washing discharge outlet (4) water outlet;
(5), when just washing discharge outlet (4) water outlet and being limpid, the valve of delivery port (3) is opened automatically, and the valve just washing discharge outlet (4) is closed automatically;
(6) water, after process carries out water outlet by delivery port (3);
Equipment is after long-play, and filter material layer (13) retains and adsorbs a certain amount of foreign material and spot, and effluent quality declines, and water outlet pressure reduction increases, and when pressure reduction increases by 0.05-0.07Mpa, equipment carries out air water associating backwash automatically;
(7), the valve of water inlet (2) and delivery port (3) closes automatically, and the valve of backwash water inlet (5) and compressed air mouth (7) is opened automatically;
(8), water is sent to backwash water inlet (7) by backwash storage cistern by recoil pump, and air is passed into compressed air mouth (7);
(9) valve of, backwash discharge outlet (6) and blast pipe (8) is opened automatically;
(10), air forms air pocket in uphill process in bearing material layer (12), then becomes minute bubbles at filter material layer (13), simultaneously backwash water top pine filter material layer (13);
(11), air discharged by blast pipe (8), and backwash water is sent to backwash discharge outlet (6) by upper hose (9), and is discharged by backwash discharge outlet (6);
(12), backwash complete after compressed air mouth (7) automatically close, after 3-5min, backwash water inlet (5) is closed automatically;
(13), the valve of backwash discharge outlet (6) and blast pipe (8) closes automatically, continues to start just washed filter work next time.
4. a kind of multi-medium filtering method according to claim 3, is characterized in that: the pressure differential showing intake-outlet during the Pressure gauge work that described water inlet (2) and delivery port (3) are provided with in real time.
5. a kind of multi-medium filtering method according to claim 3, is characterized in that: described cylindrical shell (1), before inside loading gravel is as bearing material layer (12), arranges the cobble grain of uniform arrangement in advance on bearing material layer (12) surface.
6. a kind of multi-medium filtering method according to claim 3, is characterized in that: the filtrate filter footpath, upper strata of described filter material layer (13) is greater than lower floor's filtrate filter footpath.
7. a kind of multi-medium filtering method according to claim 3, is characterized in that: described cylindrical shell (1) is also connected to Inlet and outlet water sampler, automatically detects water quality in the course of work.
Priority Applications (1)
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CN201511019265.7A CN105498316A (en) | 2015-12-29 | 2015-12-29 | Multi-medium filtering method and filtering device thereof |
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CN201511019265.7A CN105498316A (en) | 2015-12-29 | 2015-12-29 | Multi-medium filtering method and filtering device thereof |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108114514A (en) * | 2018-02-12 | 2018-06-05 | 安徽省高迪科技有限公司 | A kind of water purification quartz filter and its filter method |
CN109368838A (en) * | 2018-12-19 | 2019-02-22 | 胡小弟 | Microfiltration systems water treatment technology |
CN111701289A (en) * | 2020-06-28 | 2020-09-25 | 莱特莱德(北京)环境技术股份有限公司 | Material stock solution refining and filtering device and cleaning process thereof |
CN113384922A (en) * | 2021-06-29 | 2021-09-14 | 满洲里达赉湖热电有限公司 | Water collecting device of filter |
CN113813657A (en) * | 2021-08-08 | 2021-12-21 | 滁州永强汽车制造有限公司 | Vehicle-mounted fiber ball purified water filtering device |
CN114212944A (en) * | 2021-12-22 | 2022-03-22 | 广西欧尔佳环保技术有限公司 | High-precision active filtering device and process system for purifying crude ammonia water |
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CN203620318U (en) * | 2013-11-12 | 2014-06-04 | 杭州桂冠环保科技有限公司 | Fiber ball filter |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108114514A (en) * | 2018-02-12 | 2018-06-05 | 安徽省高迪科技有限公司 | A kind of water purification quartz filter and its filter method |
CN109368838A (en) * | 2018-12-19 | 2019-02-22 | 胡小弟 | Microfiltration systems water treatment technology |
CN111701289A (en) * | 2020-06-28 | 2020-09-25 | 莱特莱德(北京)环境技术股份有限公司 | Material stock solution refining and filtering device and cleaning process thereof |
CN113384922A (en) * | 2021-06-29 | 2021-09-14 | 满洲里达赉湖热电有限公司 | Water collecting device of filter |
CN113813657A (en) * | 2021-08-08 | 2021-12-21 | 滁州永强汽车制造有限公司 | Vehicle-mounted fiber ball purified water filtering device |
CN114212944A (en) * | 2021-12-22 | 2022-03-22 | 广西欧尔佳环保技术有限公司 | High-precision active filtering device and process system for purifying crude ammonia water |
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