CN112520910A - Sewage treatment device for chemical industry - Google Patents
Sewage treatment device for chemical industry Download PDFInfo
- Publication number
- CN112520910A CN112520910A CN202110179808.0A CN202110179808A CN112520910A CN 112520910 A CN112520910 A CN 112520910A CN 202110179808 A CN202110179808 A CN 202110179808A CN 112520910 A CN112520910 A CN 112520910A
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- China
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- rod
- plate
- box body
- rotating
- fixedly mounted
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/44—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement
- B01F31/441—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement performing a rectilinear reciprocating movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/305—Treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
Abstract
The invention belongs to the technical field of sewage treatment equipment, in particular to chemical sewage treatment equipment, and aims to solve the problems that in the process of treating the waste water, a filter screen is blocked in the process of filtering and the disinfection effect is poor due to the fact that the waste water contains residues, and the problem that the disinfection effect is poor due to the fact that the filter screen is easy to mix unevenly when disinfection powder is added at one time. The invention has simple operation and convenient use, can filter impurities in chemical engineering, and can fully stir and react sewage and a reactant, thereby accelerating the sewage treatment effect.
Description
Technical Field
The invention relates to the technical field of sewage treatment equipment, in particular to sewage treatment equipment for chemical industry.
Background
The sewage is a general term of water and runoff rainwater drained in the process of resident activity, and comprises domestic sewage, industrial wastewater and other useless water such as primary rainwater runoff inflow drainage pipe canal, and generally refers to water which can not be recycled after being treated by a certain technology or can not reach a certain standard after being subjected to primary pollution to be prepared into pure water, and most of the wastewater is disinfected by adding disinfection powder after being treated.
Current sewage treatment device for chemical industry, at the waste water treatment in-process, probably because contain the residue in the waste water, in filtering process, can make the filter screen blockked up, and once only drop into when adding the disinfection powder and lead to mixing inhomogeneous easily, lead to the disinfection effect poor, so we propose a sewage treatment device for chemical industry.
Disclosure of Invention
The invention aims to solve the defects that in the wastewater treatment process of the conventional chemical wastewater treatment equipment, a filter screen is blocked in the filtering process due to residues contained in the wastewater, and the disinfection effect is poor due to uneven mixing easily caused by one-time investment when disinfection powder is added.
In order to achieve the purpose, the invention adopts the following technical scheme:
a chemical sewage treatment device comprises a box body, wherein a discharge box is fixedly arranged at the top of the box body, a motor is fixedly arranged at the bottom of the box body, a rotating rod is fixedly arranged on an output shaft of the motor, a rotating roller is fixedly arranged at the top end of the rotating rod, a movable plate is connected on the inner wall of the box body in a sliding manner, a fixed frame is fixedly arranged at the top of the movable plate, an ejector rod is fixedly arranged at the top of the fixed frame, a material guide pipe is fixedly arranged at the bottom of the discharge box, a plug plate is connected on the inner wall of the material guide pipe in a sliding manner and fixedly connected with the ejector rod, the bottom of the movable plate is rotatably connected with two symmetrically arranged rotating shafts, the bottom ends of the two rotating shafts are rotatably connected with the same connecting plate, the connecting plate is movably connected with the rotating rod, a plurality of stirring rods are fixedly arranged on the, the aqueduct is communicated with the water inlet pipe, the filter plate is connected to the inner wall of the aqueduct in a sliding mode, the bottom of the filter plate is fixedly provided with a fixed rod, the fixed rod is fixedly connected with the movable plate, the top of the aqueduct is movably connected with a movable rod, the bottom of the movable rod is fixedly provided with a scraping rod, the scraping rod is matched with the filter plate, the top of the scraping rod is fixedly provided with two symmetrically arranged scraping plates, and the scraping plates are attached to the inner wall of the aqueduct.
Preferably, fixed cover is equipped with first sprocket on the bull stick, and fixed cover is equipped with the second sprocket in the pivot, and the meshing has same chain on first sprocket and two second sprockets, and pivoted bull stick can drive the pivot through the intermeshing of first sprocket, two second sprockets and chain and rotate simultaneously.
Preferably, the movable plate is provided with a movable hole, the movable hole is movably connected with the rotary roller, the inner wall of the movable hole is fixedly provided with a positioning pin, the rotary roller is provided with a circulating groove, the circulating groove is slidably connected with the positioning pin, and the rotary roller can drive the movable plate to move up and down through the sliding connection of the circulating groove and the positioning pin.
Preferably, two symmetrically-arranged grooves are formed in the plug plate, the grooves are matched with the material guide pipes, and the plug plate can guide out materials in the material discharge box through the grooves.
Preferably, the through-hole has been seted up at the top of box, through-hole and carriage release lever swing joint, and seted up the thread groove on the carriage release lever, fixed mounting has the locating piece on the inner wall of through-hole, locating piece and thread groove sliding connection, and the carriage release lever that removes can drive the carriage release lever through the sliding connection of thread groove and locating piece and rotate.
Preferably, the top fixed mounting of carriage release lever has the fixed plate, and the bottom fixed mounting of fixed plate has reset spring, and reset spring's bottom and box fixed connection, reset spring can drive the carriage release lever through the fixed plate and reset.
Preferably, one side threaded connection of box has the aggregate box, and the aggregate box is mutually supported with the filter, and the aggregate box can be collected the waste material on the filter.
Preferably, a water outlet pipe is fixedly mounted on one side of the box body, a valve is arranged on the water outlet pipe, and the water outlet pipe can guide out the treated water in the box body and is controlled through the valve.
Compared with the prior art, the invention has the advantages that:
(1) according to the scheme, the first chain wheel, the second chain wheel and the chain are meshed with each other, so that the rotating rod can drive the two rotating shafts to rotate simultaneously, and further can drive the stirring rod to stir the wastewater in the tank body;
(2) due to the sliding connection of the circulating groove and the positioning pin, the rotating roller can drive the moving plate to move up and down, and further can drive the plug plate to move up and down through the fixing frame, so that materials in the material placing box can be intermittently placed through the groove;
(3) because the sliding connection of thread groove and locating piece for the carriage release lever that removes can form the rotation, and then can drive and scrape the waste material of pole on to the filter and scrape out.
The invention has simple operation and convenient use, can filter impurities in chemical engineering, and can fully stir and react sewage and a reactant, thereby accelerating the sewage treatment effect.
Drawings
FIG. 1 is a schematic structural diagram of a chemical wastewater treatment plant according to the present invention;
FIG. 2 is a schematic cross-sectional view of a tank of a chemical wastewater treatment plant according to the present invention;
FIG. 3 is a schematic cross-sectional view of a water conduit of a chemical wastewater treatment plant according to the present invention;
FIG. 4 is a schematic structural view of part A of a chemical wastewater treatment plant according to the present invention;
FIG. 5 is a schematic structural diagram of part B of a chemical wastewater treatment plant according to the present invention.
In the figure: 1. a box body; 2. placing a material box; 3. a motor; 4. a rotating rod; 5. moving the plate; 6. rotating the roller; 7. a fixed mount; 8. a circulation tank; 9. positioning pins; 10. a top rod; 11. a material guide pipe; 12. a plug plate; 13. a groove; 14. a rotating shaft; 15. a stirring rod; 16. a water inlet pipe; 17. a water conduit; 18. a filter plate; 19. fixing the rod; 20. a through hole; 21. a travel bar; 22. positioning blocks; 23. a thread groove; 24. a fixing plate; 25. a return spring; 26. a scraping rod; 27. a squeegee; 28. a material collecting box; 29. a connecting plate.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.
Example one
Referring to fig. 1-5, a chemical wastewater treatment device comprises a box body 1, a discharge box 2 is fixedly installed on the top of the box body 1, a motor 3 is fixedly installed on the bottom of the box body 1, a rotating rod 4 is fixedly installed on an output shaft of the motor 3, a rotating roller 6 is fixedly installed on the top end of the rotating rod 4, a moving plate 5 is slidably connected on the inner wall of the box body 1, a fixed frame 7 is fixedly installed on the top of the moving plate 5, a top rod 10 is fixedly installed on the top of the fixed frame 7, a material guide tube 11 is fixedly installed on the bottom of the discharge box 2, a plug plate 12 is slidably connected on the inner wall of the material guide tube 11, the plug plate 12 is fixedly connected with the top rod 10, two symmetrically arranged rotating shafts 14 are rotatably connected on the bottom of the moving plate 5, the same connecting plate 29 is rotatably connected on the bottom ends of the two rotating shafts 14, the connecting, one side fixed mounting of box 1 has inlet tube 16, fixed mounting aqueduct 17 on one side inner wall of box 1, aqueduct 17 is linked together with inlet tube 16, sliding connection has filter 18 on the inner wall of aqueduct 17, the bottom fixed mounting of filter 18 has dead lever 19, dead lever 19 and movable plate 5 fixed connection, the top swing joint of aqueduct 17 has carriage release lever 21, the bottom fixed mounting of carriage release lever 21 has scraping bar 26, scraping bar 26 and filter 18 are mutually supported, and the top fixed mounting of scraping bar 26 has the scraper blade 27 of two symmetries settings, scraper blade 27 laminates with the inner wall of aqueduct 17 mutually.
In this embodiment, the rotating rod 4 is fixedly sleeved with a first chain wheel, the rotating shaft 14 is fixedly sleeved with a second chain wheel, and the first chain wheel and the two second chain wheels are engaged with a same chain.
In this embodiment, the movable plate 5 is provided with a movable hole, the movable hole is movably connected with the rotary roller 6, the inner wall of the movable hole is fixedly provided with a positioning pin 9, the rotary roller 6 is provided with a circulating groove 8, and the circulating groove 8 is slidably connected with the positioning pin 9.
In this embodiment, the plug plate 12 is provided with two symmetrically arranged grooves 13, and the grooves 13 are matched with the material guiding pipes 11.
In this embodiment, the top of the box body 1 is provided with a through hole 20, the through hole 20 is movably connected with the moving rod 21, the moving rod 21 is provided with a thread groove 23, the inner wall of the through hole 20 is fixedly provided with a positioning block 22, and the positioning block 22 is slidably connected with the thread groove 23.
In this embodiment, a fixing plate 24 is fixedly mounted on the top of the moving rod 21, a return spring 25 is fixedly mounted on the bottom of the fixing plate 24, and the bottom end of the return spring 25 is fixedly connected with the box body 1.
In this embodiment, a material collecting box 28 is connected to one side of the box body 1 by screw threads, and the material collecting box 28 is matched with the filter plate 18.
In this embodiment, one side of the box body 1 is fixedly provided with a water outlet pipe, and a valve is arranged on the water outlet pipe.
Example two
Referring to fig. 1-5, a chemical wastewater treatment device comprises a box body 1, a material discharging box 2 welded on the top of the box body 1, a motor 3 fixed on the bottom of the box body 1 through bolts, a rotating rod 4 welded on the output shaft of the motor 3, a rotating roller 6 welded on the top end of the rotating rod 4, a moving plate 5 connected on the inner wall of the box body 1 in a sliding manner, a fixed frame 7 welded on the top of the moving plate 5, a top rod 10 welded on the top of the fixed frame 7, a material guide tube 11 welded on the bottom of the material discharging box 2, a plug plate 12 connected on the inner wall of the material guide tube 11 in a sliding manner, the plug plate 12 fixedly connected with the top rod 10, two symmetrically arranged rotating shafts 14 rotatably connected on the bottom of the moving plate 5, a same connecting plate 29 rotatably connected on the bottom ends of the two rotating shafts 14, the connecting plate 29 movably connected with the rotating rod 4, a plurality, welding aqueduct 17 on one side inner wall of box 1, aqueduct 17 is linked together with inlet tube 16, sliding connection has filter 18 on the inner wall of aqueduct 17, the bottom welding of filter 18 has dead lever 19, dead lever 19 and movable plate 5 fixed connection, the top swing joint of aqueduct 17 has carriage release lever 21, the bottom welding of carriage release lever 21 has scraping bar 26, scraping bar 26 and filter 18 are mutually supported, and the top welding of scraping bar 26 has the scraper blade 27 of two symmetry settings, scraper blade 27 laminates mutually with aqueduct 17's inner wall.
In this embodiment, fixed cover is equipped with first sprocket on the bull stick 4, and fixed cover is equipped with the second sprocket on the pivot 14, and the meshing has same chain on first sprocket and two second sprockets, and pivoted bull stick 4 can drive pivot 14 simultaneous rotation through the intermeshing of first sprocket, two second sprockets and chain.
In this embodiment, the movable plate 5 is provided with a movable hole, the movable hole is movably connected with the rotating roller 6, the inner wall of the movable hole is welded with the positioning pin 9, the rotating roller 6 is provided with a circulating groove 8, the circulating groove 8 is slidably connected with the positioning pin 9, and the rotating roller 6 can drive the movable plate 5 to move up and down through the sliding connection between the circulating groove 8 and the positioning pin 9.
In this embodiment, two symmetrically-arranged grooves 13 are formed in the plug plate 12, the grooves 13 are matched with the material guide pipes 11, and the plug plate 12 can guide out materials in the material discharge box 2 through the grooves 13.
In this embodiment, the top of the box body 1 is provided with a through hole 20, the through hole 20 is movably connected with the moving rod 21, the moving rod 21 is provided with a thread groove 23, the inner wall of the through hole 20 is welded with a positioning block 22, the positioning block 22 is slidably connected with the thread groove 23, and the moving rod 21 can drive the moving rod 21 to rotate through the sliding connection between the thread groove 23 and the positioning block 22.
In this embodiment, the top welding of carriage release lever 21 has fixed plate 24, and the bottom welding of fixed plate 24 has reset spring 25, and reset spring 25's bottom and box 1 fixed connection, reset spring 25 can drive carriage release lever 21 through fixed plate 24 and reset.
In this embodiment, one side threaded connection of box 1 has material collecting box 28, and material collecting box 28 and filter 18 mutually support, and material collecting box 28 can collect the waste material on the filter 18.
In this embodiment, the welding of one side of box 1 has the outlet pipe, is equipped with the valve on the outlet pipe, and the outlet pipe can be derived the good water of treatment in the box 1 to control through the valve.
In the embodiment, when the device works, the switch of the motor 3 is started, the output shaft of the motor 3 drives the rotating rod 4 to rotate, the rotating rod 4 drives the rotating shaft 14 to rotate through the mutual meshing of the first chain wheel, the two second chain wheels and the chain, the rotating shaft 14 and the rotating rod 4 drive the stirring rod 15 to stir sewage in the box body 1, meanwhile, the rotating rod 4 which rotates drives the rotating roller 6 to rotate, the rotating roller 6 drives the moving plate 5 to move up and down through the sliding connection of the positioning pin 9 and the circulating groove 8, the moving plate 5 drives the ejector rod 10 to move up and down through the fixing frame 7, further drives the plug plate 12 to move back and forth out of the discharging box 2, and through the mutual matching of the groove 13 and the material guide pipe 11, materials in the discharging box 2 can be discharged intermittently, so that the materials can be uniformly dispersed under the stirring of the stirring rod 15 and the reaction to the sewage is accelerated, meanwhile, the, the filter 18 drives the movable rod 21 to move up and down through scraping the pole 26, the movable rod 21 can form the rotation through the thread groove 23 and the sliding connection of the positioning block 22, the waste filtered out on the filter 18 is cleared away by the movable rod 21 which rotates, and the waste is collected through the material collecting box 28, so that people can use the waste conveniently. All structures in this application can carry out the selection of material and length according to actual use condition, and the attached drawing is schematic structure chart, and specific actual dimensions can make appropriate adjustment.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention in the technical scope of the present invention.
Claims (8)
1. The chemical sewage treatment equipment comprises a box body (1) and is characterized in that a material discharging box (2) is fixedly mounted at the top of the box body (1), a motor (3) is fixedly mounted at the bottom of the box body (1), a rotating rod (4) is fixedly mounted on an output shaft of the motor (3), a rotating roller (6) is fixedly mounted at the top end of the rotating rod (4), a movable plate (5) is slidably connected onto the inner wall of the box body (1), a fixing frame (7) is fixedly mounted at the top of the movable plate (5), an ejector rod (10) is fixedly mounted at the top of the fixing frame (7), a material guide pipe (11) is fixedly mounted at the bottom of the material discharging box (2), a plug plate (12) is slidably connected onto the inner wall of the material guide pipe (11), the plug plate (12) is fixedly connected with the ejector rod (10), and two rotating shafts (14) which are symmetrically arranged, the bottom ends of the two rotating shafts (14) are rotatably connected with the same connecting plate (29), the connecting plate (29) is movably connected with the rotating rod (4), the rotating rod (4) and the rotating shaft (14) are fixedly provided with a plurality of stirring rods (15), one side of the box body (1) is fixedly provided with a water inlet pipe (16), the inner wall of one side of the box body (1) is fixedly provided with a water guide pipe (17), the water guide pipe (17) is communicated with the water inlet pipe (16), the inner wall of the water guide pipe (17) is slidably connected with a filter plate (18), the bottom of the filter plate (18) is fixedly provided with a fixed rod (19), the fixed rod (19) is fixedly connected with the movable plate (5), the top of the water guide pipe (17) is movably connected with a movable rod (21), the bottom end of the movable rod (21) is fixedly provided with a scraping rod (26), the scraping rod (26) is matched with the filter plate (18), and the top of, the scraper (27) is attached to the inner wall of the water conduit (17).
2. The chemical wastewater treatment equipment according to claim 1, wherein the rotating rod (4) is fixedly sleeved with a first chain wheel, the rotating shaft (14) is fixedly sleeved with a second chain wheel, and the first chain wheel and the two second chain wheels are meshed with a same chain.
3. The chemical wastewater treatment equipment according to claim 1, wherein the movable plate (5) is provided with a movable hole, the movable hole is movably connected with the rotating roller (6), a positioning pin (9) is fixedly installed on the inner wall of the movable hole, the rotating roller (6) is provided with a circulating groove (8), and the circulating groove (8) is slidably connected with the positioning pin (9).
4. The chemical wastewater treatment equipment according to claim 1, wherein the plug plate (12) is provided with two symmetrically arranged grooves (13), and the grooves (13) are matched with the material guide pipes (11).
5. The chemical sewage treatment equipment according to claim 1, wherein a through hole (20) is formed in the top of the box body (1), the through hole (20) is movably connected with the moving rod (21), a threaded groove (23) is formed in the moving rod (21), a positioning block (22) is fixedly mounted on the inner wall of the through hole (20), and the positioning block (22) is slidably connected with the threaded groove (23).
6. The chemical wastewater treatment equipment according to claim 1, wherein a fixing plate (24) is fixedly mounted at the top of the moving rod (21), a return spring (25) is fixedly mounted at the bottom of the fixing plate (24), and the bottom end of the return spring (25) is fixedly connected with the tank body (1).
7. The chemical wastewater treatment equipment according to claim 1, wherein a material collecting box (28) is connected to one side of the box body (1) in a threaded manner, and the material collecting box (28) is matched with the filter plate (18).
8. The chemical wastewater treatment equipment according to claim 1, wherein a water outlet pipe is fixedly arranged on one side of the box body (1), and a valve is arranged on the water outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110179808.0A CN112520910A (en) | 2021-02-08 | 2021-02-08 | Sewage treatment device for chemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110179808.0A CN112520910A (en) | 2021-02-08 | 2021-02-08 | Sewage treatment device for chemical industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112520910A true CN112520910A (en) | 2021-03-19 |
Family
ID=74975606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110179808.0A Pending CN112520910A (en) | 2021-02-08 | 2021-02-08 | Sewage treatment device for chemical industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112520910A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113387516A (en) * | 2021-06-25 | 2021-09-14 | 江苏师范大学 | Sewage ecological treatment device |
| CN113526735A (en) * | 2021-08-01 | 2021-10-22 | 山东科美环保技术服务有限公司 | Chemical wastewater recycling equipment |
| CN114772851A (en) * | 2022-04-22 | 2022-07-22 | 安徽国青智能环保科技有限公司 | Energy-saving and environment-friendly multi-stage sewage treatment device and use method thereof |
| CN115920520A (en) * | 2023-02-22 | 2023-04-07 | 潍坊敬诚环保设备有限公司 | Slaughterhouse sewage treatment device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016172935A1 (en) * | 2015-04-30 | 2016-11-03 | 吴植仁 | Sewage treatment method using self-produced sludge carbon and sludge carbon preparation system |
| CN111318639A (en) * | 2020-04-11 | 2020-06-23 | 罗厚镇 | Casting system with noise reduction function |
| CN111348777A (en) * | 2020-03-25 | 2020-06-30 | 烟台同兴智能技术有限公司 | Automatic sewage treatment device |
| CN112076514A (en) * | 2020-09-25 | 2020-12-15 | 韦健华 | Prevent filter screen jam's filter equipment for sewage treatment |
-
2021
- 2021-02-08 CN CN202110179808.0A patent/CN112520910A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016172935A1 (en) * | 2015-04-30 | 2016-11-03 | 吴植仁 | Sewage treatment method using self-produced sludge carbon and sludge carbon preparation system |
| CN111348777A (en) * | 2020-03-25 | 2020-06-30 | 烟台同兴智能技术有限公司 | Automatic sewage treatment device |
| CN111318639A (en) * | 2020-04-11 | 2020-06-23 | 罗厚镇 | Casting system with noise reduction function |
| CN112076514A (en) * | 2020-09-25 | 2020-12-15 | 韦健华 | Prevent filter screen jam's filter equipment for sewage treatment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113387516A (en) * | 2021-06-25 | 2021-09-14 | 江苏师范大学 | Sewage ecological treatment device |
| CN113526735A (en) * | 2021-08-01 | 2021-10-22 | 山东科美环保技术服务有限公司 | Chemical wastewater recycling equipment |
| CN114772851A (en) * | 2022-04-22 | 2022-07-22 | 安徽国青智能环保科技有限公司 | Energy-saving and environment-friendly multi-stage sewage treatment device and use method thereof |
| CN115920520A (en) * | 2023-02-22 | 2023-04-07 | 潍坊敬诚环保设备有限公司 | Slaughterhouse sewage treatment device |
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Application publication date: 20210319 |