CN210206159U - Wastewater pretreatment device of multi-cylinder fourdrinier paper machine - Google Patents

Wastewater pretreatment device of multi-cylinder fourdrinier paper machine Download PDF

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Publication number
CN210206159U
CN210206159U CN201920810358.9U CN201920810358U CN210206159U CN 210206159 U CN210206159 U CN 210206159U CN 201920810358 U CN201920810358 U CN 201920810358U CN 210206159 U CN210206159 U CN 210206159U
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filter
cylinder
box
pretreatment device
wastewater pretreatment
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CN201920810358.9U
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Chinese (zh)
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Junxiao Xu
徐君晓
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Zhejiang Qianxinfan Paper Co Ltd
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Zhejiang Qianxinfan Paper Co Ltd
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Abstract

The utility model discloses a wastewater pretreatment device of a multi-cylinder fourdrinier paper machine, which comprises a crushing box and a filter box which are connected by a drain pipe, wherein a stirring shaft is arranged in the crushing box and is connected with a stirring motor, the stirring shaft is sequentially provided with a first stirring rod and a second stirring rod which are transversely distributed from top to bottom, the first stirring rod is provided with a hanging rod, the second stirring rod is provided with sawteeth, the drain port of the crushing box is provided with a filter screen, and the front side of the filter screen is provided with cleaning equipment; the filter box is characterized in that a filter cylinder and a filter layer which are transversely distributed are sequentially arranged in the filter box from top to bottom, one end of the filter cylinder is connected with a rotating motor through a rotating shaft, the other end of the filter cylinder is rotatably connected with a drain pipe, and a brush plate which is correspondingly matched with the filter cylinder is arranged on the inner side wall of the filter box. The utility model has the characteristics of improve filter effect and efficiency, be difficult for blockking up the filter screen.

Description

Wastewater pretreatment device of multi-cylinder fourdrinier paper machine
Technical Field
The utility model relates to a treatment facility of multi-cylinder fourdrinier paper machine, especially a wastewater pretreatment device of multi-cylinder fourdrinier paper machine.
Background
In the papermaking production process, can produce a large amount of papermaking waste water, can handle the waste water for guaranteeing that waste water discharge is up to standard, and at the in-process of carrying out the preliminary treatment of multi-cylinder long net papermaking waste water, the fibrous material in the papermaking waste water is filtered to the direct use filter grid usually, and this kind of filtration mode filter effect is general, still contain a large amount of pollutants in the waste water after the filtration, for subsequent waste water work treatment has increaseed the degree of difficulty and pressure, it is big to lead to subsequent waste water treatment working strength, and because contain more paper pulp in the waste water, papermaking fibre etc., easy adhesion is on filter grid or filter screen, lead to the filter screen jam, not only reduce the filter effect, and the clearance is inconvenient, need often to shut down the change, waste treatment time, reduce filtration efficiency, increase cost of maintenance. Therefore, the existing wastewater pretreatment device of the multi-cylinder fourdrinier papermaking machine has the problems of common filtering effect, easy blockage of a filter screen and pending improvement of the filtering efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wastewater pretreatment device of multi-cylinder fourdrinier paper machine. The utility model has the characteristics of improve filter effect and efficiency, be difficult for blockking up the filter screen.
The technical scheme of the utility model: a wastewater pretreatment device of a multi-cylinder fourdrinier paper machine comprises a crushing box and a filter box which are connected through a drain pipe, wherein a stirring shaft is arranged in the crushing box and is connected with a stirring motor, the stirring shaft is sequentially provided with a first stirring rod and a second stirring rod which are transversely distributed from top to bottom, the first stirring rod is provided with a hanging rod, the second stirring rod is provided with sawteeth, a drain port of the crushing box is provided with a filter screen, and the front side of the filter screen is provided with cleaning equipment; the filter box is characterized in that a filter cylinder and a filter layer which are transversely distributed are sequentially arranged in the filter box from top to bottom, one end of the filter cylinder is connected with a rotating motor through a rotating shaft, the other end of the filter cylinder is rotatably connected with a drain pipe, and a brush plate which is correspondingly matched with the filter cylinder is arranged on the inner side wall of the filter box.
In the aforesaid wastewater pretreatment device of multi-cylinder fourdrinier paper machine, cleaning equipment includes the shell, is equipped with intermeshing's gear and rack in the shell, is connected with driving motor on the gear, and driving motor installs in the outside of smashing the case, and the rack is vertical to be distributed, and the lower extreme of rack stretches out the shell and be equipped with filter screen complex scraper blade.
In the wastewater pretreatment device of the multi-cylinder fourdrinier paper machine, the bottom of the crushing box is positioned at the filter screen and is provided with the slag discharging port, the lower part of the slag discharging port is provided with the slag receiving box, and the bottom of the slag discharging port is provided with the baffle corresponding to the inlet end of the slag receiving box.
In the wastewater pretreatment device of the multi-cylinder fourdrinier paper machine, one side of the baffle is hinged to the crushing box and provided with the torsion spring, two ends of the torsion spring are respectively connected with the baffle and the crushing box, the other side of the baffle is provided with the first magnetic block, and the bottom of the crushing box is provided with the second magnetic block which is correspondingly attracted by the first magnetic block.
In the wastewater pretreatment device of the multi-cylinder fourdrinier paper machine, the inner bottom surface of the crushing box is downwards inclined and distributed towards one side of the slag discharge port.
In the wastewater pretreatment device of the multi-cylinder fourdrinier paper machine, the filter layer comprises a granular quartz sand layer, an activated carbon layer and a HEPA filter layer which are sequentially arranged from top to bottom.
In the wastewater pretreatment device of the multi-cylinder fourdrinier papermaking machine, the hanging rod is T-shaped, and the saw teeth are distributed at the end part and the side part of the second stirring rod.
Compared with the prior art, the utility model has the advantages that the first stirring rod and the second stirring rod are arranged in the crushing box, the wastewater entering the crushing box is stirred, the hanging rod is arranged on the first stirring rod, the large-volume impurities can be intercepted through the hanging rod, the flowing degree of the water flow can be improved, the impurities in the wastewater are guided to the second stirring rod for crushing treatment, and the crushing effect is improved; the second stirring rod is provided with sawteeth, and large granular substances in the wastewater are crushed into small granular substances by the sawteeth, so that the blockage of a filter screen is reduced, and the difficulty of subsequent filtration and water purification treatment is reduced; the filter screen arranged at the water outlet preliminarily filters the wastewater, the cleaning equipment arranged at the front side of the filter screen is used for cleaning impurities adhered to the filter screen and cleaning the cleaned impurities into the slag receiving box, so that the permeability of the filter screen is ensured, the filtering effect and efficiency are improved, and the cleaning is convenient; the waste water is further filtered and purified through the arranged filter box, secondary filtration is firstly carried out through the filter cylinder, the filter cylinder is driven by the rotating motor to rotate, the waste water is filtered in the rotating filter cylinder, the filtering effect is improved, the brush plate brushes the filter cylinder when the filter cylinder rotates, the filter cylinder is cleaned, the blocking phenomenon of the filter cylinder is reduced, and the filtering efficiency is improved; the wastewater after passing through the filter cartridge is filtered layer by layer through the filter layer, so that the quality of the treated wastewater is improved, and the pressure of subsequent equipment for purifying the wastewater is reduced. Therefore, the utility model has the characteristics of improve filter effect and efficiency, be difficult for blockking up the filter screen.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the construction of the filtration tank;
fig. 3 is an enlarged view of a portion of a structure shown in fig. 1.
The labels in the figures are: 1. a crushing box; 11. a stirring shaft; 12. a stirring motor; 13. a first stirring rod; 14. a second stirring rod; 15. a hanging rod; 16. saw teeth; 17. a filter screen; 18. a slag discharge port; 19. a drain pipe; 191. a water pump; 2. a filter box; 21. a filter cartridge; 22. a filter layer; 221. a granular quartz sand layer; 222. an activated carbon layer; 223. a HEPA filter layer; 24. rotating the motor; 25. brushing the board; 3. cleaning equipment; 31. a housing; 32. a gear; 33. a rack; 34. a drive motor; 35. a squeegee; 4. a slag receiving box; 41. a baffle plate; 42. a first magnetic block; 43. a second magnetic block.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Examples are given.
As shown in fig. 1-3, a wastewater pretreatment device of a multi-cylinder fourdrinier papermaking machine comprises a crushing box 1 and a filter box 2 which are connected through a drain pipe 19, wherein a stirring shaft 11 is arranged in the crushing box 1, the stirring shaft 11 is connected with a stirring motor 12, the stirring shaft 11 is sequentially provided with a first stirring rod 13 and a second stirring rod 14 which are transversely distributed from top to bottom, the first stirring rod 13 is provided with a hanging rod 15, the second stirring rod 14 is provided with sawteeth 16, a drain port of the crushing box 1 is provided with a filter screen 17, and the front side of the filter screen 17 is provided with a cleaning device 3; the filter box 2 is internally provided with a filter cartridge 21 and a filter layer 22 which are transversely distributed from top to bottom in sequence, one end of the filter cartridge 21 is connected with a rotating motor 24 through a rotating shaft, the other end of the filter cartridge 21 is rotatably connected with a drain pipe 19, and the inner side wall of the filter box 2 is provided with a brush plate 25 which is correspondingly matched with the filter cartridge 21.
Cleaning device 3 is equipped with intermeshing's gear 32 and rack 33 including installing the shell 31 in smashing case 1 in the shell 31, be connected with driving motor 34 on the gear 32, and driving motor 34 installs in the outside of smashing case 1, and rack 33 vertical distribution, the lower extreme of rack 33 stretches out shell 31 and is equipped with the scraper blade 35 with filter screen 17 complex.
The bottom of the crushing box 1 is provided with a slag discharge port 18 at the position of the filter screen 17, a slag receiving box 4 is arranged below the slag discharge port 18, and the bottom of the slag discharge port 18 is provided with a baffle 41 corresponding to the inlet end of the slag receiving box 4.
One side of baffle 41 is articulated with crushing case 1 and is equipped with the torsional spring, and the both ends of torsional spring are connected with baffle 41 and crushing case 1 respectively, and the opposite side of baffle 41 is equipped with first magnetic path 42, and the bottom of crushing case 1 is equipped with the second magnetic path 43 that corresponds the attraction with first magnetic path 42. The attractive force between the first magnetic block 42 and the second magnetic block 43 is larger than the pressure of water flow, the baffle plate 41 is tightly attached to the slag discharging port 18 in a normal state, water flow is prevented from being discharged from the slag discharging port 18, when the filter screen 17 needs to be cleaned, the scraper 35 is driven by the rack 33 to move downwards, the baffle plate 41 is pushed to rotate downwards, the slag discharging port 18 is opened, impurities on the filter screen 17 are cleaned into the slag receiving box 4, when the rack 33 moves upwards and does not push the baffle plate 41 any more, the baffle plate 41 recovers to an original state under the restoring acting force of the torsion spring, the first magnetic block 42 and the second magnetic block 43 attract again, and the slag discharging port 18 is covered.
The inner bottom of the crushing box 1 is downwards distributed towards one side of the slag discharge port 18. The inclined arrangement not only guides the waste water to the water outlet of the crushing box 1, but also guides the impurities in the waste water to the slag discharge port 18, thereby accelerating the treatment speed, improving the treatment efficiency and reducing the deposition.
The filter layer 22 comprises a granular quartz sand layer 221, an activated carbon layer 222 and a HEPA filter layer 223 which are arranged from top to bottom in sequence.
The hanging rod 15 is T-shaped, and the saw teeth 16 are distributed at the end and the side of the second stirring rod 14. The peg 15 of T type is changeed and is intercepted impurity to strengthen the vortex effect, increase the impact, improve crushing effect, the distribution state of sawtooth 16 improves crushing scope and intensity.
The working principle is as follows: wastewater generated by the multi-cylinder fourdrinier paper machine enters the crushing box 1, the first stirring rod 13 and the second stirring rod 14 rotate under the driving of the stirring motor 12, the wastewater is stirred, large-volume impurities are intercepted through the hanging rod 15, large-particle large-volume substances in the wastewater are crushed into small-particle small-volume substances through the saw teeth 16, the blocking phenomenon of the filter screen 17 is reduced, and the subsequent difficulty of filtering and water purifying treatment is reduced; the wastewater after the crushing treatment enters the filter cartridge 21 of the filter box 2 along the drain pipe 19 through the filter screen 17 under the driving of the water pump 191, the filter cartridge 21 is driven by the rotating motor 24 to rotate, the wastewater is filtered in the rotating filter cartridge 21, the filtering effect is improved, the filter cartridge 21 is rotated, and meanwhile, the brush plate 25 brushes the filter cartridge 21 in all aspects, so that the filter cartridge 21 is cleaned, the blocking phenomenon of the filter cartridge 21 is reduced, and the filtering efficiency is improved; the wastewater after passing through the filter cartridge 21 is filtered layer by layer through the granular quartz sand layer 221, the activated carbon layer 222 and the HEPA filter layer 223, so that the quality of the treated wastewater is improved, and the pressure of subsequent equipment for purifying the wastewater is reduced. When needs clearance filter screen 17, driving motor 34 drives gear 32 and rotates, gear 32 drives rack 33 and reciprocates in shell 31, thereby drive scraper blade 35 and reciprocate in the outside of filter screen 17, scrape the clearance with the impurity of adhesion on the filter screen, and continue the downstream promotion baffle 41, the motive force is greater than the adsorption affinity of first magnetic path 42 and second magnetic path 43, make baffle 41 rotate downwards, open row's cinder notch 18 and connect the passageway between slag box 4, with the impurity clearance on the filter screen 17 to connect in the slag box 4, effectively clear up filter screen 17, the condition that reduces to block up filter screen 17 takes place, reduce the maintenance replacement, reduce maintenance equipment cost.

Claims (7)

1. The utility model provides a wastewater pretreatment device of multi-cylinder fourdrinier paper machine which characterized in that: the automatic water-saving filter comprises a crushing box (1) and a filter box (2) which are connected through a water discharge pipe (19), wherein a stirring shaft (11) is arranged in the crushing box (1), the stirring shaft (11) is connected with a stirring motor (12), the stirring shaft (11) is sequentially provided with a first stirring rod (13) and a second stirring rod (14) which are transversely distributed from top to bottom, a hanging rod (15) is arranged on the first stirring rod (13), sawteeth (16) are arranged on the second stirring rod (14), a filter screen (17) is arranged at a water discharge port of the crushing box (1), and cleaning equipment (3) is arranged on the front side of the filter screen (17); the filter box is characterized in that a filter cylinder (21) and a filter layer (22) which are transversely distributed are sequentially arranged in the filter box (2) from top to bottom, one end of the filter cylinder (21) is connected with a rotating motor (24) through a rotating shaft, the other end of the filter cylinder (21) is rotatably connected with a drain pipe (19), and a brush plate (25) which is correspondingly matched with the filter cylinder (21) is arranged on the inner side wall of the filter box (2).
2. The wastewater pretreatment device of the multi-cylinder fourdrinier papermaking machine according to claim 1, characterized in that: cleaning equipment (3) are equipped with intermeshing's gear (32) and rack (33) including shell (31) in shell (31), are connected with driving motor (34) on gear (32), and driving motor (34) are installed in the outside of smashing case (1), and rack (33) vertical distribution, the lower extreme of rack (33) stretch out shell (31) and be equipped with filter screen (17) complex scraper blade (35).
3. The wastewater pretreatment device of the multi-cylinder fourdrinier papermaking machine according to claim 1, characterized in that: the bottom of the crushing box (1) is provided with a slag discharge port (18) at the position of the filter screen (17), a slag receiving box (4) is arranged below the slag discharge port (18), and a baffle (41) corresponding to the inlet end of the slag receiving box (4) is arranged at the bottom of the slag discharge port (18).
4. The wastewater pretreatment device of the multi-cylinder fourdrinier papermaking machine according to claim 3, characterized in that: one side of baffle (41) and crushing case (1) are articulated and be equipped with the torsional spring, and the both ends of torsional spring are connected with baffle (41) and crushing case (1) respectively, and the opposite side of baffle (41) is equipped with first magnetic path (42), and the bottom of crushing case (1) is equipped with second magnetic path (43) that correspond the attraction with first magnetic path (42).
5. The wastewater pretreatment device of the multi-cylinder fourdrinier papermaking machine according to claim 1, characterized in that: the inner bottom surface of the crushing box (1) is downwards distributed towards one side of the slag discharge port (18).
6. The wastewater pretreatment device of the multi-cylinder fourdrinier papermaking machine according to claim 1, characterized in that: the filter layer (22) comprises a granular quartz sand layer (221), an activated carbon layer (222) and a HEPA filter layer (223) which are sequentially arranged from top to bottom.
7. The wastewater pretreatment device of the multi-cylinder fourdrinier papermaking machine according to claim 1, characterized in that: the hanging rod (15) is T-shaped, and the sawteeth (16) are distributed at the end part and the side part of the second stirring rod (14).
CN201920810358.9U 2019-05-31 2019-05-31 Wastewater pretreatment device of multi-cylinder fourdrinier paper machine Active CN210206159U (en)

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Application Number Priority Date Filing Date Title
CN201920810358.9U CN210206159U (en) 2019-05-31 2019-05-31 Wastewater pretreatment device of multi-cylinder fourdrinier paper machine

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Application Number Priority Date Filing Date Title
CN201920810358.9U CN210206159U (en) 2019-05-31 2019-05-31 Wastewater pretreatment device of multi-cylinder fourdrinier paper machine

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112663373A (en) * 2020-12-23 2021-04-16 清远铧研新材料科技有限公司 Bagasse preparation paper pulp molding production equipment
CN114016597A (en) * 2021-10-26 2022-02-08 武汉绿岛园林股份有限公司 Sponge type road paving structure for gardens and construction method thereof
CN114632357A (en) * 2022-04-19 2022-06-17 西南石油大学 Wastewater hydrogen production device with filtering function
CN116328416A (en) * 2023-05-30 2023-06-27 山东春帆环境科技有限责任公司 Water paint application effluent treatment plant

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112663373A (en) * 2020-12-23 2021-04-16 清远铧研新材料科技有限公司 Bagasse preparation paper pulp molding production equipment
CN114016597A (en) * 2021-10-26 2022-02-08 武汉绿岛园林股份有限公司 Sponge type road paving structure for gardens and construction method thereof
CN114632357A (en) * 2022-04-19 2022-06-17 西南石油大学 Wastewater hydrogen production device with filtering function
CN116328416A (en) * 2023-05-30 2023-06-27 山东春帆环境科技有限责任公司 Water paint application effluent treatment plant
CN116328416B (en) * 2023-05-30 2023-08-08 山东春帆环境科技有限责任公司 Water paint application effluent treatment plant

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