CN112707523A - Industrial sewage treatment device easy to form polluted gas - Google Patents

Industrial sewage treatment device easy to form polluted gas Download PDF

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Publication number
CN112707523A
CN112707523A CN202011523400.2A CN202011523400A CN112707523A CN 112707523 A CN112707523 A CN 112707523A CN 202011523400 A CN202011523400 A CN 202011523400A CN 112707523 A CN112707523 A CN 112707523A
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CN
China
Prior art keywords
welded
box
box body
belt pulley
filter
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
CN202011523400.2A
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Chinese (zh)
Inventor
陈卓
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202011523400.2A priority Critical patent/CN112707523A/en
Publication of CN112707523A publication Critical patent/CN112707523A/en
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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
    • B01D29/50Filters 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
    • B01D29/56Filters 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 series connection
    • 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
    • B01D29/70Regenerating the filter material in the filter by forces created by movement of the filter element
    • B01D29/72Regenerating the filter material in the filter by forces created by movement of the filter element involving vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/38Removing components of undefined structure
    • B01D53/40Acidic components
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75Multi-step processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/78Liquid phase processes with gas-liquid contact
    • 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
    • C02F1/20Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/16Regeneration of sorbents, filters

Abstract

The invention discloses an industrial sewage treatment device capable of easily forming polluted gas, which comprises a box body, wherein the bottom of the box body is fixedly connected with a driving motor, an output shaft of the driving motor is welded with a rotating shaft penetrating and extending into the box body, an outer ring of the rotating shaft is welded with a stirring rod, the top end of the rotating shaft is welded with a first belt pulley, the left side of the box body is welded with a first fixing sleeve, a first rotating rod is sleeved inside the first fixing sleeve, the top of the first rotating rod is welded with a first bevel gear, and the bottom end of the first rotating rod is welded with a second belt pulley. The device is novel in design, thinks about ingeniously, can purify the gaseous pollutant that easily volatilizees in the sewage, can prevent that the gaseous pollutant in the sewage from directly getting into the atmosphere, has played the guard action to the environment, can accelerate the staff to the processing of sewage simultaneously, and the while improves the device to the processing of sewage, and is simple to use, and the practicality is strong, is fit for extensively promoting.

Description

Industrial sewage treatment device easy to form polluted gas
Technical Field
The invention relates to the field of industrial sewage treatment, in particular to an industrial sewage treatment device capable of easily forming polluted gas.
Background
The industrial sewage refers to waste water and waste liquid generated in the industrial production process, wherein the waste water contains industrial production materials, intermediate products, byproducts and pollutants generated in the production process, which are lost along with water.
In contrast, in "an industrial wastewater treatment plant" disclosed in publication No. CN 210683440U: comprises a treatment box, one side of the top of the treatment box is fixedly connected with a filter box, one side of the top of the filter box is fixedly connected with a water inlet hopper, a water guide pipe is fixedly connected between the bottom of the filter box and the top of the treatment box, the bottom of the treatment box is fixedly connected with a water outlet pipe, and the inside of the water outlet pipe is fixedly connected with a first valve, the other side of the top of the treatment box is fixedly connected with a liquid storage box, a liquid inlet pipe is arranged on one side of the top of the liquid storage tank, a sealing plug is arranged on the top of the liquid inlet pipe, a liquid pump is fixedly connected with the top of one side of the treatment tank, the top of one side of the liquid pump is fixedly connected with a liquid pumping pipe inserted in the liquid storage box, the bottom of one side of the liquid pump is fixedly connected with a liquid discharge pipe inserted in the treatment box, and a spray pipe is fixedly connected between one side of the liquid discharge pipe and the inner wall of the top of the treatment box, and a plurality of spray heads are fixedly connected at the bottom of the spray pipe.
Although this technical scheme can carry out certain processing to sewage, still generally contain the polluting gas who easily volatilizees in sewage, make the polluting gas in the sewage directly volatilize into the atmospheric environment when directly handling sewage in, and then lead to the pollution to the environment, also can influence the healthy of staff simultaneously, it is inconvenient to use, and the practicality is not strong, is not fit for extensively promoting.
Disclosure of Invention
Objects of the invention
In order to solve the technical problems in the background art, the invention provides the industrial sewage treatment device which is easy to form the polluted gas, the device is novel in design and ingenious in conception, the polluted gas which is easy to volatilize in the sewage can be purified, the polluted gas in the sewage can be prevented from directly entering the atmosphere, the environment is protected, meanwhile, the treatment of the sewage by workers can be accelerated, the treatment of the sewage by the device is improved, the use is simple, the practicability is strong, and the device is suitable for wide popularization.
(II) technical scheme
The invention provides an industrial sewage treatment device easy to form polluted gas, which comprises a box body, wherein the bottom of the box body is fixedly connected with a driving motor, an output shaft of the driving motor is welded with a rotating shaft penetrating and extending into the box body, an agitating rod is welded on the outer ring of the rotating shaft, a first belt pulley is welded at the top end of the rotating shaft, a first fixing sleeve is welded on the left side of the box body, a first rotating rod is sleeved inside the first fixing sleeve, a first bevel gear is welded on the top of the first rotating rod, a second belt pulley is welded at the bottom end of the first rotating rod, a first belt is sleeved on the outer rings of the second belt pulley and the first belt pulley, a second fixing sleeve is welded on the left side of the box body, a second rotating rod is sleeved inside the second fixing sleeve, a second bevel gear is welded at one end of the front side of the second rotating rod, a fourth belt pulley is welded, the utility model discloses a solar energy water heater, including box, the back inner wall of box rotates and is connected with the rotary rod, the outer lane welding of rotary rod has the stick of beating, the positive one end welding of rotary rod has the third belt pulley, the second belt has been cup jointed to the outer lane of third belt pulley and fourth belt pulley, the top fixedly connected with case lid of box, the purifying box has all been welded to the both sides bottom of box, the top welding of purifying box has the air duct that runs through and extend to in the case lid, the top welding of purifying box has the outlet duct, the both sides inner wall of box sliding connection has first filter and second filter respectively, the both sides that one side was kept away from each other to first filter and second filter all weld the spring, the one end welding that the spring was kept away from first filter and second filter has the.
Furthermore, an air inlet pipe is welded at the top of the box cover, and a control valve is fixedly connected to the outer ring of the air inlet pipe.
Furthermore, the purifying box comprises a lime water chamber, an alkali water chamber and a drying chamber, the lime water chamber and the alkali water chamber are communicated with each other through a conduit, the alkali water chamber and the drying chamber are communicated with each other through a conduit, and concentrated sulfuric acid is filled in the drying chamber.
Furthermore, two sliding chutes are formed in the inner walls of the two sides of the box body, sliding blocks are sleeved in the sliding chutes, the two ends of the first filtering plate and the two ends of the second filtering plate are welded with the sliding blocks, and the cross sections of the sliding chutes are T-shaped.
Further, the driving motor is fixedly connected with the bottom of the box body through bolts, and the model of the driving motor is 250BYG 52C-0421.
Furthermore, two through holes are formed in the left side of the box body, the first belt and the second belt penetrate through the through holes, water outlets are formed in two sides of the bottom of the box body, and sundry outlets are formed in two sides of the box body.
Compared with the prior art, the technical scheme of the invention has the following beneficial technical effects:
1. the device is through installation driving motor, the puddler, the air duct, the purifying box, outlet duct isotructure, wherein can control the pivot through control driving motor and drive the puddler and rotate, and then can make the gaseous pollutant in the sewage volatilize fast, and volatile gaseous pollutant then can enter into the purifying box and purify, at last discharging away, can prevent that the gaseous pollutant in the sewage from directly getting into the atmosphere, played the guard action to the environment, can accelerate the processing of staff to sewage simultaneously.
2. The device is provided with a belt pulley. Belt, filter, strike excellent, bevel gear, spring isotructure, start and can filter sewage through the filter, remove the impurity solid in the sewage, strike the excellent transmission of striking simultaneously and can strike the filter under belt pulley and bevel gear, and then can make the impurity on the filter flow the box through going out miscellaneous mouthful, prevent that impurity from plugging up the filtration mouth of filter, and then the filter effect of the filter that improves. The device is novel in design, thinks about ingeniously, can purify the gaseous pollutant that easily volatilizees in the sewage, can prevent that the gaseous pollutant in the sewage from directly getting into the atmosphere, has played the guard action to the environment, can accelerate the staff to the processing of sewage simultaneously, and the while improves the device to the processing of sewage, and is simple to use, and the practicality is strong, is fit for extensively promoting.
Drawings
FIG. 1 is a schematic front view of an industrial sewage treatment apparatus capable of easily generating polluted gas according to the present invention.
FIG. 2 is a schematic view of the internal structure of a purification box of an industrial sewage treatment device of the present invention, which is easy to generate polluted gas.
FIG. 3 is a schematic diagram of a side view of a part of an industrial sewage treatment apparatus capable of easily generating polluted gas according to the present invention.
FIG. 4 is a schematic top view of a part of an industrial sewage treatment apparatus capable of easily generating polluted gas according to the present invention.
FIG. 5 is a schematic view of a filter plate structure of an industrial sewage treatment apparatus according to the present invention, which is capable of easily forming a polluted gas.
Reference numerals: 1. a box body; 2. a rotating shaft; 3. a drive motor; 4. a first pulley; 5. a stirring rod; 6. a first filter plate; 7. a first belt; 8. a purification box; 801. a lime water chamber; 802. an alkali water chamber; 803. a drying chamber; 9. a second pulley; 10. a first rotating lever; 11. a first fixing sleeve; 12. a first bevel gear; 13. a second bevel gear; 14. a second fixing sleeve; 15. a baffle plate; 16. a third belt pulley; 17. a knock rod; 18. a second filter plate; 19. a spring; 20. a box cover; 21. an air duct; 22. an air outlet pipe; 23. a second belt; 24. a fourth belt pulley; 25. a second rotating lever; 26. the rod is rotated.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-5, the industrial sewage treatment device easy to form polluted gas provided by the present invention comprises a box body 1, a driving motor 3 is fixedly connected to the bottom of the box body 1, a rotating shaft 2 penetrating and extending into the box body 1 is welded to an output shaft of the driving motor 3, a stirring rod 5 is welded to an outer ring of the rotating shaft 2, a first belt pulley 4 is welded to the top end of the rotating shaft 2, a first fixing sleeve 11 is welded to the left side of the box body 1, a first rotating rod 10 is sleeved inside the first fixing sleeve 11, a first bevel gear 12 is welded to the top of the first rotating rod 10, a second belt pulley 9 is welded to the bottom end of the first rotating rod 10, a first belt 7 is sleeved to the outer rings of the second belt pulley 9 and the first belt pulley 4, a second fixing sleeve 14 is welded to the left side of the box body 1, a second rotating rod 25 is sleeved inside the second fixing sleeve 14, and a second, the welding of the one end at the second dwang 25 back has fourth belt pulley 24, the back inner wall of box 1 rotates and is connected with rotary rod 26, the outer lane welding of rotary rod 26 has strikes excellent 17, the welding of the positive one end of rotary rod 26 has third belt pulley 16, the second belt 23 has been cup jointed to the outer lane of third belt pulley 16 and fourth belt pulley 24, the top fixedly connected with case lid 20 of box 1, purifying box 8 has all been welded to the both sides bottom of box 1, the top welding of purifying box 8 has air duct 21 that runs through and extend to in the case lid 20, the top welding of purifying box 8 has outlet duct 22, the both sides inner wall difference sliding connection of box 1 has first filter 6 and second filter 18, first filter 6 and the both sides that second filter 18 kept away from one side each other all weld spring 19, spring 19 keeps away from the one end welding of first filter 6 and second filter 18 have with box 1 both sides inner wall welded baffle 15.
The top of the box cover 20 is welded with an air inlet pipe, the outer ring of the air inlet pipe is fixedly connected with a control valve, the purifying box 8 comprises a lime water chamber 801, soda water room 802 and drying chamber 803, put through each other through the pipe between lime water room 801 and the soda water room 802, put through each other through the pipe between soda water room 802 and the drying chamber 803, contain concentrated sulfuric acid in the drying chamber 803, two spouts have all been seted up to the both sides inner wall of box 1, the slider has been cup jointed in the spout, the both ends of first filter 6 and second filter 18 all weld with the slider, the cross section of spout is the T type, driving motor 3 passes through the bottom fixed connection of bolt and box 1, driving motor 3's model is 250BYG52C-0421, two through-holes have been seted up in the left side of box 1, first belt 7 and second belt 23 all pass the through-hole, the delivery port has all been seted up to the bottom both sides of box 1, miscellaneous mouthful has all been seted up to the.
In the invention, sewage to be treated is injected into a box body 1 through a water inlet pipe, when the sewage enters the box body 1, the sewage firstly falls on a second filter plate 18 for primary filtration, the filtered sewage further falls on a first filter plate 6 for secondary filtration, so that solid impurities in the sewage are separated, the residual sewage enters the bottom of the box body 1, a driving motor 3 is started, the driving motor 3 is started to drive an output shaft to rotate, the output shaft rotates to drive a rotating shaft 2 to rotate, the rotating shaft 2 rotates to further drive a stirring rod 5 welded on the outer ring of the rotating shaft 2 and a first belt pulley 4 to rotate, the stirring rod 5 rotates to stir the sewage, so that pollution gas easy to volatilize in the sewage is volatilized, and the pollution gas moves upwards to enter a purification box 8 through an air guide pipe 21, when the polluted gas enters the purifying box 8, the polluted gas firstly enters the lime water chamber 801, the acidic gas in the polluted gas is adsorbed by the lime water chamber 801, then enters the alkaline water chamber 802 to absorb the acidic gas in the polluted gas, finally the purified polluted gas is discharged to the atmosphere by dehydration of the drying chamber 803, meanwhile, the first belt pulley 4 rotates to drive the second belt pulley 9 to rotate by the first belt 7, the second belt pulley 9 further rotates to drive the fourth belt pulley 24 to rotate by the first rotating rod 10, the first bevel gear 12, the second bevel gear 13 and the second rotating rod 25, the fourth belt pulley 24 can also rotate to drive the third belt pulley 16 to rotate by the second belt 23, further the rotating rod 26 and the knocking rod 17 are driven to move, the first filter plate 6 and the second filter plate 18 are knocked by the knocking rod 17, and then can make the impurity on first filter 6 and the second filter 18 flow out of box 1 through going out miscellaneous mouthful, prevent that impurity from plugging up first filter 6 and second filter 18.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such changes and modifications that fall within the scope and bounds of the appended claims, or equivalents of such scope and bounds.

Claims (6)

1. The industrial sewage treatment device easy to form polluted gas comprises a box body (1) and is characterized in that a driving motor (3) is fixedly connected to the bottom of the box body (1), a rotating shaft (2) penetrating through and extending into the box body (1) is welded to an output shaft of the driving motor (3), a stirring rod (5) is welded to an outer ring of the rotating shaft (2), a first belt pulley (4) is welded to the top end of the rotating shaft (2), a first fixing sleeve (11) is welded to the left side of the box body (1), a first rotating rod (10) is sleeved inside the first fixing sleeve (11), a first bevel gear (12) is welded to the top of the first rotating rod (10), a second belt pulley (9) is welded to the bottom end of the first rotating rod (10), and a first belt (7) is sleeved on the outer rings of the second belt pulley (9) and the first belt pulley (4), the welding of the left side of box (1) has the fixed cover of second (14), the inside of the fixed cover of second (14) has cup jointed second dwang (25), the welding of the positive one end of second dwang (25) has second bevel gear (13), the welding of the one end at the second dwang (25) back has fourth belt pulley (24), the back inner wall of box (1) rotates and is connected with rotary rod (26), the outer lane welding of rotary rod (26) has strikes stick (17), the welding of the positive one end of rotary rod (26) has third belt pulley (16), the outer lane of third belt pulley (16) and fourth belt pulley (24) has cup jointed second belt (23), the top fixedly connected with case lid (20) of box (1), purifying box (8) has all been welded to the both sides bottom of box (1), the top welding of purifying box (8) has air duct (21) that runs through and extend to in case lid (20), the welding of the top of purifying box (8) has outlet duct (22), the both sides inner wall difference sliding connection of box (1) has first filter (6) and second filter (18), spring (19) have all been welded to the both sides of keeping away from one side each other in first filter (6) and second filter (18), the one end welding of keeping away from first filter (6) and second filter (18) in spring (19) have with box (1) both sides inner wall welded baffle (15).
2. The industrial sewage treatment device easy to form polluted gas according to claim 1, wherein an air inlet pipe is welded at the top of the box cover (20), and a control valve is fixedly connected to the outer ring of the air inlet pipe.
3. The industrial sewage treatment device which easily forms polluted gas according to claim 1, wherein the purification box (8) comprises a lime water chamber (801), an alkaline water chamber (802) and a drying chamber (803), the lime water chamber (801) and the alkaline water chamber (802) are communicated with each other through a conduit, the alkaline water chamber (802) and the drying chamber (803) are communicated with each other through a conduit, and concentrated sulfuric acid is contained in the drying chamber (803).
4. The industrial sewage treatment device which is easy to form polluted gas according to claim 1, wherein two sliding grooves are formed on the inner walls of two sides of the box body (1), sliding blocks are sleeved in the sliding grooves, two ends of the first filtering plate (6) and two ends of the second filtering plate (18) are welded with the sliding blocks, and the cross section of each sliding groove is T-shaped.
5. The industrial sewage treatment device easy to form polluted gas according to claim 1, wherein the driving motor (3) is fixedly connected with the bottom of the box body (1) through bolts, and the model of the driving motor (3) is 250BYG 52C-0421.
6. The industrial sewage treatment device easy to form polluted gas according to claim 1, wherein two through holes are formed in the left side of the box body (1), the first belt (7) and the second belt (23) pass through the through holes, water outlets are formed in two sides of the bottom of the box body (1), and impurity outlets are formed in two sides of the box body (1).
CN202011523400.2A 2020-12-22 2020-12-22 Industrial sewage treatment device easy to form polluted gas Withdrawn CN112707523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011523400.2A CN112707523A (en) 2020-12-22 2020-12-22 Industrial sewage treatment device easy to form polluted gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011523400.2A CN112707523A (en) 2020-12-22 2020-12-22 Industrial sewage treatment device easy to form polluted gas

Publications (1)

Publication Number Publication Date
CN112707523A true CN112707523A (en) 2021-04-27

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Application Number Title Priority Date Filing Date
CN202011523400.2A Withdrawn CN112707523A (en) 2020-12-22 2020-12-22 Industrial sewage treatment device easy to form polluted gas

Country Status (1)

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CN (1) CN112707523A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114832463A (en) * 2022-05-17 2022-08-02 四川东立科技股份有限公司 Filter equipment is used in high-grade sulphuric acid production
CN115193152A (en) * 2022-07-25 2022-10-18 中煤科工集团重庆研究院有限公司 Dust remover with sewage treatment function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114832463A (en) * 2022-05-17 2022-08-02 四川东立科技股份有限公司 Filter equipment is used in high-grade sulphuric acid production
CN114832463B (en) * 2022-05-17 2023-12-15 四川东立科技股份有限公司 Filtering device for high-grade sulfuric acid production
CN115193152A (en) * 2022-07-25 2022-10-18 中煤科工集团重庆研究院有限公司 Dust remover with sewage treatment function

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Application publication date: 20210427