CN114477502A - Accumulation type industrial sewage purification water filter and implementation method thereof - Google Patents

Accumulation type industrial sewage purification water filter and implementation method thereof Download PDF

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Publication number
CN114477502A
CN114477502A CN202210187521.7A CN202210187521A CN114477502A CN 114477502 A CN114477502 A CN 114477502A CN 202210187521 A CN202210187521 A CN 202210187521A CN 114477502 A CN114477502 A CN 114477502A
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CN
China
Prior art keywords
tank
filter
ring
industrial sewage
water
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Pending
Application number
CN202210187521.7A
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Chinese (zh)
Inventor
章礼春
章峰宁
章峻宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flt Filitering System Co ltd
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Flt Filitering System Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flt Filitering System Co ltd filed Critical Flt Filitering System Co ltd
Priority to CN202210187521.7A priority Critical patent/CN114477502A/en
Publication of CN114477502A publication Critical patent/CN114477502A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/03Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/64Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6407Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
    • B01D29/6415Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a rotary movement with respect to the filtering element
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage

Abstract

The invention discloses an accumulation type industrial sewage purification water filter and an implementation method thereof, belonging to the technical field of filters. The invention provides an accumulation type industrial sewage purification water filter and an implementation method thereof.

Description

Accumulation type industrial sewage purification water filter and implementation method thereof
Technical Field
The invention relates to the technical field of filters, in particular to an accumulation type industrial sewage purification water filter and an implementation method thereof.
Background
With the rapid development of economic construction, the population is continuously increased, particularly, the urban population is rapidly expanded, and the national sewage discharge amount is rapidly increased. The gradual deterioration of water quality is an important reason for urban rainwater resource shortage, so that the sustainable development is restricted, the ecological balance of the water environment is destroyed, and the living health of urban residents is threatened. Municipal sewage mainly comprises industrial sewage, hospital sewage, domestic sewage and the like, most of municipal sewage contains organic pollutants, so that the content of bacteria is high, and the environmental water is easily polluted when the municipal sewage is directly discharged into the environmental water.
The existing industrial sewage treatment methods can be broadly divided into physical methods, chemical methods and biological methods, and integrated methods, which use physical, chemical or/and biological methods to treat industrial sewage, and the physical methods, chemical methods and biological methods each include a plurality of specific methods. In general, the existing industrial wastewater treatment methods play an important role in environmental protection, however, for some specific industrial wastewater.
The industrial wastewater comprises production wastewater, production sewage and cooling water, and refers to wastewater and waste liquid generated in the industrial production process, wherein the wastewater and the waste liquid contain industrial production materials, intermediate products, byproducts and pollutants generated in the production process, which are lost along with water. The industrial wastewater has various types and complex components. For example, the waste water from electrolytic salt industry contains mercury, the waste water from heavy metal smelting industry contains various metals such as lead and cadmium, the waste water from electroplating industry contains various heavy metals such as cyanide and chromium, the waste water from petroleum refining industry contains phenol, and the waste water from pesticide manufacturing industry contains various pesticides. Because industrial wastewater contains various toxic substances and pollutes the environment, the environment is harmful to human health, so that the industrial wastewater is developed to be comprehensively utilized and turn the harmful into the beneficial, and can be discharged after being treated by adopting corresponding purification measures according to the components and the concentration of pollutants in the wastewater.
And current industrial sewage is when purifying, and current filtration filters the back through built-in filter screen and carries out the edulcoration again, when the filter screen is used for a long time, then leads to the filter screen to be blockked up by impurity, and long-time use then takes place the filter effect variation easily to lead to subsequent effect to reduce.
Disclosure of Invention
The present invention is directed to an accumulation-type industrial wastewater purification filter and a method for implementing the same, which solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an accumulation type industrial sewage purification water filter comprises an accumulation pool, a water suction pump, a detachable filter tank and a purification tank, wherein the water suction pump is installed on the accumulation pool, a water suction pipe of the water suction pump is inserted into the accumulation pool, a water delivery pipe of the water suction pump is connected into the detachable filter tank, and the detachable filter tank is connected with the purification tank through a delivery pipe;
the anti-blocking filter comprises a detachable filter tank, and is characterized in that an anti-blocking component, a power component and a filter component are arranged in the detachable filter tank, the filter component is arranged at the detaching position of the detachable filter tank, the power component is arranged outside the detachable filter tank, and the power component extends into the detachable filter tank and is connected with the anti-blocking component, wherein the anti-blocking component is driven by the power component to rotate for cleaning impurities adsorbed on the filter component;
and a material adding component is arranged in the purification tank.
Furthermore, the detachable filter tank comprises a front tank, a rear tank and flange sheets, the flange sheets are fixed on the opening edges of the front tank and the rear tank, and the front tank and the rear tank are sealed and fixed through the flange sheets;
and a first retaining ring and a second retaining ring are fixed on the inner rings of the openings of the front tank and the rear tank.
Furthermore, the anti-blocking assembly comprises ring pieces, a cross rod and a cleaning brush, the ring pieces are embedded into the annular groove of the first blocking ring, the cross rod is fixed between the ring pieces, and the cleaning brush is fixed along the length direction of the cross rod;
and a circle of gear ring is fixed on the side surface of the ring piece.
Further, power component includes motor, speed reducer, axostylus axostyle and gear, and motor and speed reducer are connected to the axle and the axostylus axostyle one end of speed reducer are connected, and the other end of axostylus axostyle penetrates in the preceding jar fixed with the gear, and gear and ring gear meshing, it is rotatory along the annular to drive the ring piece through the motor under the deceleration of speed reducer, and the clearance brush is around circular motion.
Furthermore, the filtering component comprises a filtering ring and a filtering net, the filtering ring is fixed on the second baffle ring, the filtering net is fixed in the filtering ring, the brush head of the cleaning brush is abutted to the filtering net, and impurities on the filtering net are cleaned in the rotating process of the cleaning brush.
Further, the material adds the subassembly and includes servo motor, bevel gear, swinging pipe and (mixing) shaft, and servo motor installs at the top of purifying tank, and the swinging pipe inserts from purifying tank top to fixed bevel gear intermeshing is gone up with the port of swinging pipe to servo motor's axle, and the (mixing) shaft is fixed on the swinging pipe, is equipped with the pay-off hole and the swinging pipe inner chamber intercommunication that run through in the (mixing) shaft, and the top of swinging pipe inserts the inlet pipe.
Further, the stirring shaft and the rotating pipe extend into the purifying tank, and the rotating pipe is obliquely arranged in the stirring shaft.
The invention provides another technology, and an implementation method of an accumulation type industrial sewage purification water filter, which comprises the following steps:
s1: the water pump pumps the industrial sewage in the accumulation tank to flow into the detachable filtering tank, and the water flow is controlled to enter the detachable filtering tank by adjusting the power of the water pump;
s2: industrial sewage flows into the purification tank after being filtered by the cleaning brush and the filter screen, a servo motor on the purification tank is started, and the servo motor drives the rotary pipe and the stirring shaft to rotate under the driving of the bevel gear to continuously stir the industrial sewage;
s3: the purifying material flows into the stirring shaft through the rotating pipe, and can be slowly injected into the purifying tank when being continuously stirred;
s4: the motor and the speed reducer drive the shaft lever and the gear to rotate synchronously, and the cleaning brush rotates to continuously remove impurities on the filter screen.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides an accumulation type industrial sewage purification water filter and an implementation method thereof.
2. According to the accumulation type industrial sewage purification water filter and the implementation method thereof, the brush head of the cleaning brush is abutted against the filter screen, impurities on the filter screen are cleaned in the rotating process of the cleaning brush, and the impurities on the filter screen are removed by the rotation of the cleaning brush.
3. The invention provides an accumulation type industrial sewage purification water filter and an implementation method thereof.
Drawings
FIG. 1 is an overall perspective view of the present invention;
FIG. 2 is a partial exploded view of the present invention;
FIG. 3 is a block diagram of the anti-clogging assembly of the present invention;
FIG. 4 is a perspective view of the anti-jam assembly of the present invention;
fig. 5 is a view showing the structure of a material adding unit according to the present invention.
In the figure: 1. an impoundment; 2. a water pump; 3. the filter tank can be disassembled; 31. a front tank; 311. a first retainer ring; 32. a rear tank; 321. a second retainer ring; 33. a flange sheet; 4. a purification tank; 5. an anti-clogging assembly; 51. a ring sheet; 511. a ring gear; 52. a cross bar; 53. cleaning the brush; 6. a power assembly; 61. a motor; 62. a speed reducer; 63. a shaft lever; 64. a gear; 7. a filter assembly; 71. a filter ring; 72. a filter screen; 8. a material addition component; 81. a servo motor; 82. a bevel gear; 83. rotating the tube; 84. a stirring shaft.
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.
Referring to fig. 1-5, an accumulation type industrial sewage purification water filter comprises an accumulation pool 1, a water pump 2, a detachable filter tank 3 and a purification tank 4, wherein the accumulation pool 1 is used for accumulating industrial sewage, the water pump 2 is installed on the accumulation pool 1, a water pumping pipe of the water pump 2 is inserted into the accumulation pool 1, a water feeding pipe of the water pump 2 is connected to the detachable filter tank 3, the detachable filter tank 3 is connected with the purification tank 4 through a delivery pipe, and the industrial sewage pumped by the water pump 2 is filtered by the detachable filter tank 3 and then is fed into the purification tank 4 for purification;
an anti-blocking component 5, a power component 6 and a filtering component 7 are arranged in the detachable filtering tank 3, the filtering component 7 is arranged at the detaching position of the detachable filtering tank 3 and is used for filtering through the filtering component 7, the power component 6 is arranged outside the detachable filtering tank 3, and the power component 6 extends into the detachable filtering tank 3 and is connected with the anti-blocking component 5, wherein the anti-blocking component 5 is driven by the power component 6 to rotate for cleaning impurities adsorbed on the filtering component 7, the power component 6 drives the anti-blocking component 5 to work, and the anti-blocking component 5 is used for cleaning the filtering screen 72;
the purification tank 4 is internally provided with a material adding component 8.
The detachable filter tank 3 comprises a front tank 31, a rear tank 32 and a flange piece 33, the flange piece 33 is fixed on the opening edges of the front tank 31 and the rear tank 32, the front tank 31 and the rear tank 32 are fixed in a sealing way through the flange piece 33, and the flange piece 33 is convenient to install;
the first retainer ring 311 and the second retainer ring 321 are fixed on the inner rings of the openings of the front can 31 and the rear can 32, and the first retainer ring 311 and the second retainer ring 321 are arranged side by side.
The anti-blocking assembly 5 comprises ring pieces 51, cross rods 52 and cleaning brushes 53, wherein the ring pieces 51 are embedded into the ring grooves of the first blocking ring 311, the cross rods 52 are fixed among the ring pieces 51, the cleaning brushes 53 are fixed along the length direction of the cross rods 52, the cross rods 52 are arranged at the diameter positions of the ring pieces 51, and the cleaning brushes 53 are fixed on the cross rods 52;
a ring gear 511 is fixed on the side of the ring plate 51, and the ring gear 511 is arranged on the ring plate 51.
The power assembly 6 comprises a motor 61, a speed reducer 62, a shaft rod 63 and a gear 64, the motor 61 is connected with the speed reducer 62, the motor 61 drives the speed reducer 62 to rotate, a shaft of the speed reducer 62 is connected with one end of the shaft rod 63, the speed reducer 62 reduces the speed to drive the shaft rod 63 to rotate, the other end of the shaft rod 63 penetrates into the front tank 31 and is fixed with the gear 64, the gear 64 is meshed with the gear ring 511, the ring piece 51 is driven to rotate along the ring groove through the motor 61 under the speed reduction of the speed reducer 62, the cleaning hairbrush 53 moves around the circumference, and the cleaning hairbrush 53 rotates along with the ring piece 51.
The filter assembly 7 comprises a filter ring 71 and a filter screen 72, the filter ring 71 is fixed on the second baffle ring 321, the filter screen 72 is fixed in the filter ring 71, the brush head of the cleaning brush 53 abuts against the filter screen 72, impurities on the filter screen 72 are cleaned in the rotating process of the cleaning brush 53, and the impurities on the filter screen 72 are removed by the rotation of the cleaning brush 53.
The material adding assembly 8 comprises a servo motor 81, a bevel gear 82, a rotating pipe 83 and a stirring shaft 84, the servo motor 81 is installed at the top of the purification tank 4, the rotating pipe 83 is inserted from the top end of the purification tank 4, the shaft of the servo motor 81 is meshed with the bevel gear 82 fixed on the port of the rotating pipe 83, the stirring shaft 84 is fixed on the rotating pipe 83, a feeding hole penetrating through the stirring shaft 84 is communicated with the inner cavity of the rotating pipe 83, the top end of the rotating pipe 83 is connected with a feeding pipe, the servo motor 81 drives the rotating pipe 83 and the stirring shaft 84 to rotate, and the rotating pipe 83 and the stirring shaft 84 discharge purification materials while rotating.
The stirring shaft 84 and the rotary pipe 83 extend into the purification tank 4, and the rotary pipe 83 is obliquely arranged in the stirring shaft 84, so that the purification materials can be discharged from the stirring shaft 84 through the oblique arrangement.
The invention provides another technology, and an implementation method of an accumulation type industrial sewage purification water filter, which comprises the following steps:
the method comprises the following steps: the water pump 2 pumps the industrial sewage in the accumulation pool 1 and flows into the detachable filter tank 3, and the water flow is controlled to enter the detachable filter tank 3 by adjusting the power of the water pump 2;
step two: the industrial sewage flows into the purification tank 4 after being filtered by the cleaning brush 53 and the filter screen 72, the servo motor 81 on the purification tank 4 is started, the servo motor 81 drives the rotary pipe 83 and the stirring shaft 84 to rotate under the drive of the bevel gear 82, and the industrial sewage is continuously stirred;
step three: the purification material flows into the stirring shaft 84 through the rotating pipe 83, and can be slowly injected into the purification tank 4 when being stirred continuously;
step four: the motor 61 and the speed reducer 62 drive the shaft rod 63 and the gear 64 to synchronously rotate, and the cleaning brush 53 rotates to continuously remove impurities on the filter screen 72.
In conclusion; the invention relates to an accumulation type industrial sewage purification water filter and an implementation method thereof.A water accumulation pool 1 is used for accumulating industrial sewage, a water suction pump 2 is arranged on the water accumulation pool 1, a water suction pipe of the water suction pump 2 is inserted into the water accumulation pool 1, a water feeding pipe of the water suction pump 2 is connected to a detachable filter tank 3, the detachable filter tank 3 is connected with a purification tank 4 through a delivery pipe, the industrial sewage pumped by the water suction pump 2 is filtered by the detachable filter tank 3 and then is sent into the purification tank 4 for purification; filter through filtering component 7, power component 6 sets up and is dismantling the filter tank 3 outside to power component 6 extends to can dismantle in the filter tank 3 and is connected with anti-blocking component 5, wherein, prevents blocking component 5 and is used for clearing up absorbent impurity on the filtering component 7 in the rotation of power component 6 drive down, and power component 6 drive prevents blocking component 5 work, prevents blocking component 5 and is used for clearing up filter screen 72.
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 able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims (8)

1. An accumulation type industrial sewage purification water filter is characterized by comprising an accumulation pool (1), a water suction pump (2), a detachable filter tank (3) and a purification tank (4), wherein the water suction pump (2) is installed on the accumulation pool (1), a water suction pipe of the water suction pump (2) is inserted into the accumulation pool (1), a water delivery pipe of the water suction pump (2) is connected into the detachable filter tank (3), and the detachable filter tank (3) is connected with the purification tank (4) through a delivery pipe;
the detachable filter tank (3) is internally provided with an anti-blocking component (5), a power component (6) and a filter component (7), the filter component (7) is arranged at the detachable position of the detachable filter tank (3), the power component (6) is arranged outside the detachable filter tank (3), the power component (6) extends into the detachable filter tank (3) and is connected with the anti-blocking component (5), and the anti-blocking component (5) is driven by the power component (6) to rotate to clean impurities adsorbed on the filter component (7);
and a material adding component (8) is arranged in the purification tank (4).
2. The accumulative industrial sewage purifying water filter according to claim 1 wherein the detachable filtering tank (3) comprises a front tank (31), a rear tank (32) and a flange plate (33), the flange plate (33) is fixed on the opening edges of the front tank (31) and the rear tank (32), and the front tank (31) and the rear tank (32) are fixed by the flange plate (33) in a sealing way;
and a first retaining ring (311) and a second retaining ring (321) are fixed on the inner rings of the openings of the front tank (31) and the rear tank (32).
3. The accumulative industrial sewage purifying water filter according to claim 1 wherein the anti-clogging member (5) comprises ring pieces (51), cross bars (52) and cleaning brushes (53), the ring pieces (51) are embedded in the ring grooves of the first retainer ring (311), the cross bars (52) are fixed between the ring pieces (51), and the cleaning brushes (53) are fixed along the length direction of the cross bars (52);
and a ring of gear rings (511) are fixed on the side surface of the ring piece (51).
4. The accumulative industrial sewage purifying water filter as defined in claim 1 wherein the power assembly (6) comprises a motor (61), a speed reducer (62), a shaft (63) and a gear (64), the motor (61) and the speed reducer (62) are connected, and the shaft of the speed reducer (62) is connected with one end of the shaft (63), the other end of the shaft (63) penetrates into the front tank (31) to be fixed with the gear (64), and the gear (64) is engaged with the gear ring (511), the ring plate (51) is driven to rotate along the ring groove by the motor (61) at the reduced speed of the speed reducer (62), and the cleaning brush (53) moves around the circumference.
5. The accumulative industrial sewage purifying water filter as defined in claim 1 wherein the filter unit (7) comprises a filter ring (71) and a filter net (72), the filter ring (71) is fixed on the second stopper ring (321), the filter net (72) is fixed in the filter ring (71), the brush head of the cleaning brush (53) abuts against the filter net (72), and the cleaning brush (53) cleans impurities on the filter net (72) during the rotation.
6. The accumulative industrial sewage purifying water filter according to claim 1 wherein the material adding means (8) comprises a servo motor (81), a bevel gear (82), a rotary pipe (83) and a stirring shaft (84), the servo motor (81) is installed on the top of the purifying tank (4), the rotary pipe (83) is inserted from the top of the purifying tank (4), the shaft of the servo motor (81) is engaged with the bevel gear (82) fixed on the end of the rotary pipe (83), the stirring shaft (84) is fixed on the rotary pipe (83), a feed hole penetrating through the stirring shaft (84) is communicated with the inner cavity of the rotary pipe (83), and the top of the rotary pipe (83) is connected to the feed pipe.
7. The accumulative industrial sewage purifying water filter, as defined in claim 6, wherein the agitating shaft (84) and the rotary pipe (83) are extended into the purifying tank (4), and the rotary pipe (83) is slantingly provided in the agitating shaft (84).
8. The method of any one of claims 1 to 7 for implementing an accumulative industrial sewage purifying water filter comprising the steps of:
s1: the water pump (2) pumps the industrial sewage in the impoundment (1) to flow into the detachable filter tank (3), and water flow is controlled to enter the detachable filter tank (3) by adjusting the power of the water pump (2);
s2: industrial sewage flows into the purification tank (4) after being filtered by the cleaning brush (53) and the filter screen (72), a servo motor (81) on the purification tank (4) is started, and the servo motor (81) drives the rotary pipe (83) and the stirring shaft (84) to rotate under the drive of the bevel gear (82), so that the industrial sewage is continuously stirred;
s3: the purifying material flows into the stirring shaft (84) through the rotating pipe (83), and can be slowly injected into the purifying tank (4) when being stirred continuously;
s4: the motor (61) and the speed reducer (62) drive the shaft lever (63) and the gear (64) to synchronously rotate, and the cleaning brush (53) rotates to continuously remove impurities on the filter screen (72).
CN202210187521.7A 2022-02-28 2022-02-28 Accumulation type industrial sewage purification water filter and implementation method thereof Pending CN114477502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210187521.7A CN114477502A (en) 2022-02-28 2022-02-28 Accumulation type industrial sewage purification water filter and implementation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210187521.7A CN114477502A (en) 2022-02-28 2022-02-28 Accumulation type industrial sewage purification water filter and implementation method thereof

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Publication Number Publication Date
CN114477502A true CN114477502A (en) 2022-05-13

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA959980A (en) * 1971-04-01 1974-12-24 August Schreiber Filtration and purification of contaminated water
CN211069789U (en) * 2019-10-29 2020-07-24 河北海天环保工程设备股份有限公司 Sewage automatic reagent feeding device
CN112875914A (en) * 2021-01-12 2021-06-01 辽宁科技学院 Two-in-one treatment system for municipal sewage and industrial sewage and implementation method thereof
CN213527661U (en) * 2020-08-03 2021-06-25 黄爱民 Chemical industry is handled and is used impurity filtering device for waste water treatment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA959980A (en) * 1971-04-01 1974-12-24 August Schreiber Filtration and purification of contaminated water
CN211069789U (en) * 2019-10-29 2020-07-24 河北海天环保工程设备股份有限公司 Sewage automatic reagent feeding device
CN213527661U (en) * 2020-08-03 2021-06-25 黄爱民 Chemical industry is handled and is used impurity filtering device for waste water treatment
CN112875914A (en) * 2021-01-12 2021-06-01 辽宁科技学院 Two-in-one treatment system for municipal sewage and industrial sewage and implementation method thereof

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