CN215559432U - Papermaking pulping effluent treatment plant - Google Patents
Papermaking pulping effluent treatment plant Download PDFInfo
- Publication number
- CN215559432U CN215559432U CN202120041407.4U CN202120041407U CN215559432U CN 215559432 U CN215559432 U CN 215559432U CN 202120041407 U CN202120041407 U CN 202120041407U CN 215559432 U CN215559432 U CN 215559432U
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- Prior art keywords
- fixed
- wall
- filter body
- cleaning
- storage box
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- 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.)
- Expired - Fee Related
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- 238000004537 pulping Methods 0.000 title claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims abstract description 113
- 239000010419 fine particle Substances 0.000 claims abstract description 18
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 63
- 239000000428 dust Substances 0.000 claims description 31
- 239000002699 waste material Substances 0.000 claims description 31
- 238000003756 stirring Methods 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000013589 supplement Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 239000000126 substance Substances 0.000 description 15
- 239000002351 wastewater Substances 0.000 description 11
- 238000001914 filtration Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000010405 clearance mechanism Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012629 purifying agent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a papermaking and pulping wastewater treatment device which comprises a filter body, a first storage tank fixed on the inner wall of the filter body, a second storage tank fixed on the side wall of the filter body, a third storage tank fixed on the lower end surface of the filter body, a fourth storage tank fixed on the side wall of the filter body, a cleaning device rotationally arranged on the inner wall of the filter body and used for cleaning the inner wall of the filter body, and a fine particle device arranged on the inner wall of the second storage tank in a sliding manner.
Description
Technical Field
The utility model relates to the technical field of papermaking wastewater treatment equipment, in particular to a papermaking pulping wastewater treatment device.
Background
The papermaking wastewater refers to wastewater generated in the pulping and papermaking process. Comprises pulping and cooking waste liquor, washing waste water, bleaching waste water, paper machine white water and the like. The papermaking wastewater has complex components and poor biodegradability, belongs to industrial wastewater which is difficult to treat, and is one of main industrial pollution sources in China.
Current filter is when clearing up waste water, and partial waste material can the adhesion on filter body's inner wall, and when the filter screen in the filter equipment carries out long-term filtration to waste water simultaneously, the phenomenon of filter screen jam can appear, when the filter screen jam, can lead to the logical water flow decline of filter screen.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a papermaking and pulping wastewater treatment device which has the effect of cleaning the inner wall of a filter and the effect of cleaning a filter screen.
The technical purpose of the utility model is realized by the following technical scheme:
a papermaking pulping wastewater treatment device comprises a filter body, a first storage box fixed on the inner wall of the filter body, a second storage box fixed on the side wall of the filter body, a third storage box fixed on the lower end face of the filter body, and a fourth storage box fixed on the side wall of the filter body, and further comprises a cleaning device which is rotatably arranged on the inner wall of the filter body and used for cleaning the inner wall of the filter body, and a fine particle device which is slidably arranged on the inner wall of the second storage box, wherein the cleaning device comprises a stirring rod which is rotatably arranged on the inner wall of the filter body and used for stirring liquid, and a brush which is fixed on the side wall of the stirring rod and used for cleaning the inner wall of the filter body, a first suction pump which is used for driving the liquid in the first storage box to enter the filter body is fixed on the inner wall of the first storage box, and a first motor which is used for driving the stirring rod to rotate is fixed on the upper end face of the filter body, the upper end face of the filter body is fixedly provided with a transmission pipe II for transmitting materials in a penetrating manner, a first liquid outlet pipe I for transmitting liquid in the filter body into a storage box II is fixed on the inner wall of the filter body, a second water suction pump is fixed on the inner wall of the first liquid outlet pipe, a first filter screen I for filtering the liquid is fixed on the inner wall of the storage box II, the storage box II is connected with a storage box tee joint through a pipeline, a second filter screen II for filtering the liquid is fixed on the inner wall of the storage box III, a second liquid outlet pipe is fixed on the side wall of the storage box III in a penetrating manner, a first electromagnetic valve is fixed on the side wall of the second liquid outlet pipe I, a third filter screen III for filtering the liquid is arranged on the inner wall of the storage box IV in a sliding manner, and a second electric push rod II for driving the third filter screen to move is fixed on the lower end face of the storage box IV, the upper end face of bin four runs through and is fixed with the supplementary pipe one that is used for carrying out the replenishment to four interior liquid of bin, be fixed with on the inner wall of filter body and be used for transmitting four interior liquid of bin and enter into the suction pump three in the filter body, suction pump three passes through the pipe connection with the filter body.
By adopting the technical scheme, when waste water needs to be cleaned, waste liquid enters the storage box IV through the first replenishing pipe, when the waste liquid enters the storage box IV, the large-particle substances in the waste liquid are filtered by the third filter screen, after the large-particle substances are filtered, the third water suction pump is started, waste materials in the storage box IV are extracted by the third water suction pump to enter the filter body, when the waste liquid enters the filter body, a worker pours purifying chemicals into the second transmission pipe, the purifying chemicals enter the filter body through the second transmission pipe, when the chemicals enter the filter body, the first motor is started, the output shaft of the first motor rotates to drive the stirring rod to rotate, the stirring rod rotates to drive the waste materials and the chemicals in the filter body to be stirred, uniform stirring of the waste materials and the chemicals is realized, after the waste materials and the chemicals are uniformly stirred, the second water suction pump is started, liquid in the filter body enters the second water suction pump through the first liquid outlet pipe, liquid enters the storage tank III through the water suction pump II, when the liquid enters the storage tank III, the filter screen filters the liquid again through the filter screen II, when the second filtering screen finishes filtering again, the first electromagnetic valve is opened, the liquid is discharged into an external wastewater treatment system through the second liquid outlet pipe to realize the discharge of wastewater, when the inner wall of the filter body needs to be cleaned, the first water suction pump is started, the first water suction pump pumps liquid in the first storage tank into the filter body, when the liquid enters the filter body, because the stirring rod is in a rotating state, the stirring rod can drive the brush to rotate in the rotating process, the inner wall of the filter body can be cleaned when the brush rotates, when the first filter screen and the second filter screen need to be cleaned, the fine particle device is started, and the fine particle device cleans the first filter screen and the second filter screen.
As preferred, the fine particle device sets up including sliding and is used for carrying out the clearance board one of clearing up, is used for driving the electric putter one that the clearance board removed and is used for clearing up the interior dust catcher one of cavity on being fixed in two lateral walls of bin on being used for driving the clearance board one on two inner walls of bin and being fixed in the filter body lateral wall, it is provided with the clearance mechanism one that is used for carrying out the clearance to filter screen two to slide on three inner walls of bin, the rotation is provided with the clearance mechanism two that is used for clearing up filter screen three on the inner wall of bin four.
By adopting the technical scheme, when the first filter screen needs to be cleaned, the first electric push rod is started, the first electric push rod drives the first cleaning plate to move, when the first cleaning plate moves, the first dust collector is started, waste materials on the upper end surface of the first filter screen can enter a cavity of the first cleaning plate through an opening of the first cleaning plate, the waste materials enter the first dust collector through the cavity of the first cleaning plate, the first filter screen is cleaned by the first dust collector, when the second filter screen needs to be cleaned, the first cleaning mechanism is started, the second filter screen is cleaned by the second cleaning mechanism, when the third filter screen needs to be cleaned, the second cleaning mechanism is started, and the two pairs of the third filter screens are cleaned by the second cleaning mechanism.
Preferably, the first cleaning mechanism comprises a second cleaning plate and a third dust collector, the second cleaning plate is arranged on the three inner walls of the storage box in a rotating mode and used for cleaning the second filter screen, the third dust collector is fixed on the three side walls of the storage box and used for cleaning the inner cavity of the second cleaning plate, and an electric push rod IV used for driving the second cleaning plate to move is fixed on the side wall of the third storage box.
Adopt above-mentioned technical scheme, electric putter four starts, and electric putter four starts can drive cleaning plate two and remove, and when cleaning plate two removed the position of needs, the dust catcher three starts, and the waste material of two up end of filter screen can enter into the cavity of cleaning plate two through the opening of cleaning plate two, and the waste material is in entering into the dust catcher three through the cavity of cleaning plate two, realizes the clearance of dust catcher three to filter screen two.
Preferably, the second cleaning mechanism comprises a third cleaning plate which is arranged on the four inner walls of the storage box in a sliding mode and used for cleaning the third filter screen and a second dust collector which is fixed on the four side walls of the storage box and used for cleaning the three inner cavities of the cleaning plate, and a third electric push rod which is used for driving the third cleaning plate to move is fixed on the side wall of the fourth storage box.
Adopt above-mentioned technical scheme, electric putter three starts, and electric putter three can drive clearance board three and remove, and when clearance board three removed the position that needs, the dust catcher two starts, and the waste material of three up end of filter screen can enter into the cavity of clearance board three through the opening of clearance board three in, and the waste material enters into the dust catcher two through the cavity of clearance board three in, realizes the clearance of two pairs of filter screens three of dust catcher.
Preferably, a control panel for controlling the cleaning device and the fine particle device is fixed on the side wall of the filter body.
By adopting the technical scheme, the control panel is used for controlling the cleaning device and the fine particle device.
Preferably, a support leg for supporting the filter body is fixed to a lower end surface of the filter body.
Adopt above-mentioned technical scheme, the stabilizer blade is used for supporting filter body.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is a schematic diagram of a cleaning apparatus and a fine particle apparatus according to an embodiment.
Reference numerals: 1. a filter body; 2. a first storage box; 3. a second storage box; 4. a third storage tank; 5. a fourth storage tank; 6. a cleaning device; 7. a fine particle device; 8. a stirring rod; 9. A brush; 10. a first water pump; 12. a second conveying pipe; 13. a first liquid outlet pipe; 14. a water pump II; 15. a first filter screen; 16. a second filter screen; 17. a second liquid outlet pipe; 18. a first electromagnetic valve; 19. A third filter screen; 20. a second electric push rod; 21. a first supplement pipe; 22. a water pump III; 23. cleaning the first plate; 24. an electric push rod I; 25. a first dust collector; 26. a first cleaning mechanism; 27. a second cleaning mechanism; 28. cleaning a second plate; 29. a third dust collector; 30. an electric push rod IV; 31. cleaning a third plate; 32. a second dust collector; 33. an electric push rod III; 34. a control panel; 35. a support leg; 36. and a first motor.
Detailed Description
The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model.
Referring to fig. 1 to 2, a papermaking and pulping wastewater treatment device comprises a filter body 1, a first storage tank 2 fixed on the inner wall of the filter body 1, a second storage tank 3 fixed on the side wall of the filter body 1, a third storage tank 4 fixed on the lower end surface of the filter body 1, a fourth storage tank 5 fixed on the side wall of the filter body 1, a cleaning device 6 rotatably arranged on the inner wall of the filter body 1 for cleaning the inner wall of the filter body 1, and a fine particle device 7 slidably arranged on the inner wall of the second storage tank 3, wherein a first supplement pipe 21 for supplementing liquid in the fourth storage tank 5 is fixedly arranged on the upper end surface of the fourth storage tank 5 in a penetrating manner, the cleaning device 6 comprises a stirring rod 8 rotatably arranged on the inner wall of the filter body 1 for stirring the liquid, and a brush 9 fixed on the side wall of the stirring rod 8 for cleaning the inner wall of the filter body 1, when waste water needs to be cleaned, waste liquid enters the storage tank four 5 through the first supplement pipe 21, the inner wall of the storage tank four 5 is provided with a third filter screen 19 used for filtering liquid in a sliding mode, when the waste liquid enters the storage tank four 5, the third filter screen 19 filters large granular substances in the waste liquid, a third suction pump 22 used for conveying liquid in the storage tank four 5 into the filter body 1 is fixed on the inner wall of the filter body 1, the third suction pump 22 is connected with the filter body 1 through a pipeline, after the large granular substances are filtered, the third suction pump 22 is started, the third suction pump 22 pumps waste materials in the storage tank four 5 into the filter body 1, when the waste liquid enters the filter body 1, the upper end face of the filter body 1 penetrates through and is fixedly provided with a second conveying pipe 12 used for conveying the materials, and a purifying agent is poured into the second conveying pipe 12 by staff, purifying chemicals enter the filter body 1 through the second transmission pipe 12, when the chemicals enter the filter body 1, a first motor 36 for driving the stirring rod 8 to rotate is fixed on the upper end face of the filter body 1, the first motor 36 is started, an output shaft of the first motor 36 rotates to drive the stirring rod 8 to rotate, the stirring rod 8 rotates to drive waste materials and the chemicals in the filter body 1 to stir, the waste materials and the chemicals are uniformly stirred, after the waste materials and the chemicals are uniformly stirred, a first filter screen 15 for filtering liquid is fixed on the inner wall of the second storage box 3, a first liquid outlet pipe 13 for transmitting liquid in the filter body 1 to enter the second storage box 3 is fixed on the inner wall of the first liquid outlet pipe 13, a second water suction pump 14 is fixed on the inner wall of the first liquid outlet pipe 13, the second water suction pump 14 is started, the liquid in the filter body 1 enters the second water suction pump 14 through the first liquid outlet pipe 13, liquid enters the storage box II 3 through the water suction pump II 14, when the liquid enters the storage box III 4, the waste is filtered by the filter screen I15, after the waste is filtered, the storage box II 3 is connected with the storage box III 4 through a pipeline, the liquid in the storage box II 3 can enter the storage box III 4, when the liquid enters the storage box III 4, the filter screen II 16 for filtering the liquid is fixed on the inner wall of the storage box III 4, the liquid outlet pipe II 17 penetrates through and is fixed on the side wall of the storage box III 4, the electromagnetic valve I18 is fixed on the side wall of the liquid outlet pipe II 17, the liquid is filtered again by the filter screen II 16, after the secondary filtering of the filter screen II 16 is completed, the electromagnetic valve I18 is opened, the liquid is discharged into an external wastewater treatment system through the liquid outlet pipe II 17, the discharge of wastewater is realized, when the liquid enters the filter body 1, the water suction pump I10 is started, the first water pump 10 pumps liquid in the first storage tank 2 into the filter body 1, when the liquid enters the filter body 1, the stirring rod 8 is in a rotating state, so that the stirring rod 8 can drive the brush 9 to rotate in the rotating process, the inner wall of the filter body 1 can be cleaned when the brush 9 rotates,
when the first filter screen 15 and the second filter screen 16 and the third filter screen 19 need to be cleaned, the fine particle device 7 is started, the fine particle device 7 cleans the first filter screen 15 and the second filter screen 16 and the third filter screen 19, the fine particle device 7 comprises a first cleaning plate 23 which is arranged on the inner wall of the second storage box 3 in a sliding mode and used for cleaning the first filter screen 15, a first electric push rod 24 which is fixed on the side wall of the second storage box 3 and used for driving the first cleaning plate 23 to move, and a first dust collector 25 which is fixed on the side wall of the filter body 1 and used for cleaning waste in a cavity, when the first filter screen 15 needs to be cleaned, the first electric push rod 24 is started, the first electric push rod 24 drives the first cleaning plate 23 to move, when the first cleaning plate 23 moves, the first dust collector 25 is started, the waste on the upper end face of the first filter screen 15 enters the cavity of the first cleaning plate 23 through the opening of the first cleaning plate 23, and enters the first dust collector 25 through the cavity of the cleaning plate 23, the cleaning of the first filter screen 15 by the first dust collector 25 is realized, when the second filter screen 16 needs to be cleaned, a first cleaning mechanism 26 for cleaning the second filter screen 16 is arranged on the inner wall of the third storage box 4 in a sliding mode, the first cleaning mechanism 26 comprises a second cleaning plate 28 which is rotatably arranged on the inner wall of the third storage box 4 and is used for cleaning the second filter screen 16 and a third dust collector 29 which is fixed on the side wall of the third storage box 4 and is used for cleaning the inner chamber of the second cleaning plate 28, an electric push rod four 30 for driving the second cleaning plate 28 to move is fixed on the side wall of the third storage box 4, the electric push rod four 30 is started, the electric push rod four 30 drives the second cleaning plate 28 to move, when the second cleaning plate 28 moves to a required position, the third dust collector 29 is started, waste on the upper end face of the second filter screen 16 enters the chamber of the second cleaning plate 28 through an opening of the second cleaning plate 28, and enters the third dust collector 29 through the chamber of the second cleaning plate 28, the cleaning of the second filter screen 16 by the third dust collector 29 is realized, the inner wall of the storage box four 5 is rotatably provided with a second cleaning mechanism 27 for cleaning the third filter screen 19, the second cleaning mechanism 27 comprises a third cleaning plate 31 which is arranged on the inner wall of the storage box four 5 in a sliding manner and is used for cleaning the third filter screen 19 and a second dust collector 32 which is fixed on the side wall of the storage box four 5 and is used for cleaning the inner chamber of the third cleaning plate 31, the side wall of the storage box four 5 is fixed with a third electric push rod 33 for driving the third cleaning plate 31 to move, the third electric push rod 33 is started, the third electric push rod 33 drives the third cleaning plate 31 to move, when the third cleaning plate 31 moves to a required position, the second dust collector 32 is started, waste on the upper end surface of the third filter screen 19 enters the chamber of the third cleaning plate 31 through the opening of the third cleaning plate 31, and enters the second dust collector 32 through the chamber of the third cleaning plate 31, the second dust collector 32 is used for cleaning the third filter screen 19, a control panel 34 used for controlling the cleaning device 6 and the fine particle device 7 is fixed on the side wall of the filter body 1, the control panel 34 is used for controlling the cleaning device 6 and the fine particle device 7, supporting legs 35 used for supporting the filter body 1 are fixed on the lower end face of the filter body 1, and the supporting legs 35 are used for supporting the filter body 1.
Claims (6)
1. A papermaking pulping wastewater treatment device comprises a filter body (1), a first storage box (2) fixed on the inner wall of the filter body (1), a second storage box (3) fixed on the side wall of the filter body (1), a third storage box (4) fixed on the lower end surface of the filter body (1) and a fourth storage box (5) fixed on the side wall of the filter body (1), and is characterized by further comprising a cleaning device (6) which is rotatably arranged on the inner wall of the filter body (1) and used for cleaning the inner wall of the filter body (1) and a fine particle device (7) which is slidably arranged on the inner wall of the second storage box (3), wherein the cleaning device (6) comprises a stirring rod (8) which is rotatably arranged on the inner wall of the filter body (1) and used for stirring liquid, and a brush (9) which is fixed on the side wall of the stirring rod (8) and used for cleaning the inner wall of the filter body (1), the up end of filter body (1) is fixed with and is used for driving puddler (8) pivoted motor one (36), be fixed with on the inner wall of bin one (2) and be used for driving in bin one (2) liquid enter into filter body (1) suction pump one (10), the up end of filter body (1) runs through and is fixed with transmission pipe two (12) that are used for transmitting the material, be fixed with on the inner wall of filter body (1) and be used for transmitting in filter body (1) liquid enter into drain pipe one (13) in bin two (3), be fixed with on the inner wall of drain pipe one (13) suction pump two (14), be fixed with on the inner wall of bin two (3) and be used for carrying out filterable filter screen one (15) to liquid, bin two (3) and bin three (4) pass through the pipe connection, be fixed with on the inner wall of bin three (4) and be used for carrying out filterable filter screen two (16) to liquid The utility model discloses a filter, it is fixed with drain pipe two (17) to run through on the lateral wall of bin three (4), be fixed with solenoid valve one (18) on the lateral wall of drain pipe two (17), it is used for carrying out filterable filter screen three (19) to liquid to slide on the inner wall of bin four (5), the lower terminal surface of bin four (5) is fixed with electric putter two (20) that are used for driving filter screen three (19) and remove, the up end of bin four (5) runs through to be fixed with and is used for carrying out the supplementary pipe one (21) that supplements to liquid in bin four (5), be fixed with on the inner wall of filter body (1) and be used for transmitting bin four (5) interior liquid and enter into three (22) of suction pump in filter body (1), suction pump three (22) pass through the pipe connection with filter body (1).
2. The papermaking pulping wastewater treatment device according to claim 1, characterized in that the fine particle device (7) comprises a first cleaning plate (23) which is arranged on the inner wall of the second storage box (3) in a sliding manner and used for cleaning the first filter screen (15), a first electric push rod (24) which is fixed on the side wall of the second storage box (3) and used for driving the first cleaning plate (23) to move, and a first dust collector (25) which is fixed on the side wall of the filter body (1) and used for cleaning waste materials in the cavity, a first cleaning mechanism (26) which is used for cleaning the second filter screen (16) is arranged on the inner wall of the third storage box (4) in a sliding manner, and a second cleaning mechanism (27) which is used for cleaning the third filter screen (19) is arranged on the inner wall of the fourth storage box (5) in a sliding manner.
3. The papermaking and pulping wastewater treatment device according to claim 2, characterized in that the first cleaning mechanism (26) comprises a second cleaning plate (28) which is rotatably arranged on the inner wall of the third storage box (4) and used for cleaning the second filter screen (16) and a third dust collector (29) which is fixed on the side wall of the third storage box (4) and used for cleaning the inner chamber of the second cleaning plate (28), and a fourth electric push rod (30) which is used for driving the second cleaning plate (28) to move is fixed on the side wall of the third storage box (4).
4. The papermaking pulping wastewater treatment device according to claim 2, characterized in that the second cleaning mechanism (27) comprises a third cleaning plate (31) which is arranged on the inner wall of the fourth storage box (5) in a sliding manner and used for cleaning the third filter screen (19) and a second dust collector (32) which is fixed on the side wall of the fourth storage box (5) and used for cleaning the inner chamber of the third cleaning plate (31), and a third electric push rod (33) which is used for driving the third cleaning plate (31) to move is fixed on the side wall of the fourth storage box (5).
5. The paper-making and pulping wastewater treatment device according to claim 2, characterized in that a control panel (34) for controlling the cleaning device (6) and the fine particle device (7) is fixed on the side wall of the filter body (1).
6. The papermaking and pulping wastewater treatment device according to claim 1, characterized in that a support leg (35) for supporting the filter body (1) is fixed on the lower end surface of the filter body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120041407.4U CN215559432U (en) | 2021-01-06 | 2021-01-06 | Papermaking pulping effluent treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120041407.4U CN215559432U (en) | 2021-01-06 | 2021-01-06 | Papermaking pulping effluent treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215559432U true CN215559432U (en) | 2022-01-18 |
Family
ID=79816185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120041407.4U Expired - Fee Related CN215559432U (en) | 2021-01-06 | 2021-01-06 | Papermaking pulping effluent treatment plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215559432U (en) |
-
2021
- 2021-01-06 CN CN202120041407.4U patent/CN215559432U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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Granted publication date: 20220118 |