CN210595498U - Corrugated paper waste water recovery system - Google Patents

Corrugated paper waste water recovery system Download PDF

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Publication number
CN210595498U
CN210595498U CN201921060969.2U CN201921060969U CN210595498U CN 210595498 U CN210595498 U CN 210595498U CN 201921060969 U CN201921060969 U CN 201921060969U CN 210595498 U CN210595498 U CN 210595498U
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China
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foam
cylinder
water inlet
outlet
water
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CN201921060969.2U
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Chinese (zh)
Inventor
吴贵兴
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Green Forest Qingxin Paper Industrial Ltd
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Green Forest Qingxin Paper Industrial Ltd
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Abstract

The utility model belongs to the field of paper making equipment, and discloses a corrugated paper wastewater recovery system, which comprises a water collecting well and a pulping tank, wherein the water collecting well is used for collecting each wastewater generating point in a corrugated paper mill; the separator consists of a cylinder and a cone connected to the bottom of the cylinder, the top of the cylinder is a foam outlet, the bottom of the cone is a wastewater outlet, the middle of the cylinder is connected with a water inlet pipe, the water inlet pipe is tangent to the cylinder, the water inlet pipe is connected with the outlet of the mixing tank, and a water pump is arranged between the water inlet pipe and the mixing tank; the waste water outlet is connected to a pulp forming pool, and the pulp in the pulp forming pool is used for papermaking of a cylinder paper machine. The system separates solid and liquid through the screen jumping, temporarily stores the waste water through the mixing tank, realizes the separation of foam and slurry through the separator, and finally obtains slurry without slag and foam, and can be directly discharged to the slurry forming tank for paper making recycling.

Description

Corrugated paper waste water recovery system
Technical Field
The utility model relates to a papermaking equipment field, especially a corrugated paper waste water recovery system.
Background
The applicant, Guilin Hengzhen technology and technology Limited company, has proposed an invention patent application CN201810334373.0 in 2018, and discloses a papermaking wastewater recovery tank, including scraper blade, milipore filter, jet pump, dissolved air pump and second casing, the second casing left side has seted up the outlet, second casing left side bottom fixedly connected with first motor, the conveyer belt outside fixedly connected with grid, baffle top fixedly connected with second motor, the track outside fixedly connected with scraper blade, dissolved air pump left end fixedly connected with breather pipe, dissolved air pump right-hand member fixedly connected with water service pipe, water service pipe top fixedly connected with jet pump, jet pump output fixedly connected with jet pipe, first casing inside is equipped with the milipore filter, second casing right side bottom fixedly connected with slurry collecting bucket.
The scheme has the advantage that the jet pump and the ultrafiltration membrane are utilized to realize 100 percent recovery of the paper fiber.
Through this scheme, it can be seen that each paper mill is striving to achieve zero effluent discharge, and each company has its unique design.
The technical problem that this application will solve is: the complexity of the system is reduced, and the recycling of the papermaking fibers is realized by using the equipment which is as simple as possible.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a corrugated paper waste water recovery system, this system carry out solid and liquid separation through jumping the sieve, keep in waste water through mixing the pond, realize the separation of foam and thick liquid through the separator, and the thick liquid that obtains at last does not have sediment, does not have the bubble, can directly arrange to the pulping pond and supplies the papermaking retrieval and utilization.
The solution does not involve extraction of pulp fibres and therefore its structure is much simpler than existing designs and does not require excessively laborious maintenance.
The utility model provides a technical scheme does: a corrugated paper wastewater recovery system comprises a water collecting well and a pulping tank, wherein the water collecting well is used for collecting each wastewater generating point in a corrugated paper mill, the pulping tank also comprises a screen jump, a mixing tank used for receiving the wastewater after the screen jump removes slag, and a separator used for separating the wastewater and foam; the separator consists of a cylinder and a cone connected to the bottom of the cylinder, the top of the cylinder is a foam outlet, the bottom of the cone is a wastewater outlet, the middle of the cylinder is connected with a water inlet pipe, the water inlet pipe is tangent to the cylinder, the water inlet pipe is connected with the outlet of the mixing tank, and a water pump is arranged between the water inlet pipe and the mixing tank; the waste water outlet is connected to a pulp forming pool, and the pulp in the pulp forming pool is used for papermaking of a cylinder paper machine.
In the corrugated paper wastewater recovery system, the number of the separators is multiple, and the separators are connected in parallel; still include foam discharge pipe and row thick liquid pipe, the foam outlet of a plurality of separators is connected to the foam discharge pipe, the waste water export of a plurality of separators is connected to into the thick liquid pond through row thick liquid pipe.
In foretell corrugated paper waste water recovery system, the inlet tube of connecting on a plurality of separators is connected to a water inlet manifold, the water pump is connected on water inlet manifold, water inlet manifold is connected to the export of mixing tank.
In foretell corrugated paper waste water recovery system, the mixing tank is circular, be equipped with the agitator on the mixing tank.
In foretell corrugated paper waste water recovery system, still include the foam collecting pit, the upper portion of the lateral wall of mixing tank is equipped with the foam overflow mouth, the foam overflow mouth is connected to the foam collecting pit, the foam discharge pipe also is connected to the foam collecting pit.
After the technical scheme is adopted in the utility model, its beneficial effect who has is:
this scheme carries out solid and liquid separation through jumping the sieve, keeps in waste water through mixing the pond, realizes the separation of foam and thick liquid through the separator, and the thick liquid that obtains at last does not have sediment, does not have the bubble, can directly arrange to the pulping pond and supply the papermaking retrieval and utilization.
The solution does not involve extraction of pulp fibres and therefore its structure is much simpler than existing designs and does not require excessively laborious maintenance and replacement of consumables.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the following detailed description, but the present invention is not limited thereto.
Example 1:
referring to fig. 1, a corrugated paper wastewater recovery system comprises a water collecting well 1 for collecting each wastewater generating point in a corrugated paper mill, a pulping tank 2, a skip screen 3, a mixing tank 4 for receiving wastewater after deslagging of the skip screen 3, and a separator 5 for separating wastewater and foam; the separator 5 consists of a cylinder body 51 and a cone 52 connected to the bottom of the cylinder body 51, the top of the cylinder body 51 is a foam outlet 53, the bottom of the cone 52 is a waste water outlet 54, the middle of the cylinder body 51 is connected with a water inlet pipe 55, the water inlet pipe 55 is tangent to the cylinder body 51, the water inlet pipe 55 is connected with the outlet of the mixing tank 4, and a water pump 6 is arranged between the water inlet pipe 55 and the mixing tank 4; the waste water outlet 54 is connected to the pulp forming tank 2, and the pulp in the pulp forming tank 2 is used for papermaking of a cylinder machine.
In the actual production process, the water collecting well 1 is used for collecting waste water containing paper pulp generated in each process in the papermaking process, the waste water may contain various solid matters, the waste water in the water collecting well 1 firstly enters the jump sieve 3, the jump sieve 3 removes solid impurities visible to naked eyes, the treated waste water enters the mixing tank 4 for temporary storage and continuous mixing, foam is generated in the process, and tiny solid impurities are entrained in the foam and removed. The bottom or middle-lower part of the mixing tank 4 is connected with a water pump 6, the water pump 6 pumps the wastewater into a separator 5, the working principle of the separator 5 is similar to that of a cyclone dust collector, the fluid enters the cylinder body 51 tangentially, spiral fluid can be generated, the spiral fluid can continue to generate foam, residual micro solid impurities are carried in the foam, the foam can be discharged from a foam outlet 53 when the foam is lighter, the liquid fluid can be discharged to the pulping tank 2 from a wastewater outlet 54 when the liquid fluid is heavier, the wastewater at the moment can be called slurry with smaller concentration, and the slurry can be mixed with other slurry in the pulping tank 2 and recycled to a cylinder paper machine.
In this embodiment, there are a plurality of separators 5, and the plurality of separators 5 are connected in parallel; and the device also comprises a foam discharge pipe 7 and a pulp discharge pipe 8, wherein the foam outlets 53 of the separators 5 are connected to the foam discharge pipe 7, and the waste water outlets 54 of the separators 5 are connected to the pulping pool 2 through the pulp discharge pipe 8. The number of separators 5 to be put into use can be selected according to the amount of production, and in this embodiment, there are 3 separators 5, and in the case of high-load plant operation, all of the 3 separators 5 are put into operation, and in the case of low-load plant operation, 1 separator 5 is put into operation.
Preferably, the water inlet pipe 55 connected to the plurality of separators 5 is connected to a water inlet manifold 9, the water pump 6 is connected to the water inlet manifold 9, and the water inlet manifold 9 is connected to the outlet of the mixing tank 4.
In this embodiment, the mixing tank 4 is circular, the mixing tank 4 is provided with a stirrer 41, and further comprises a foam collecting tank 10, the upper portion of the side wall of the mixing tank 4 is provided with a foam overflow port 11, the foam overflow port 11 is connected to the foam collecting tank 10, and the foam discharge pipe 7 is also connected to the foam collecting tank 10.
In this embodiment, the separation of large granular solids and the separation of small solids are removed by two different methods, the large granular solids are removed by the skip sieve 3, and the small solids are removed by the froth. The process of foam removal of fine particles is carried out in two locations, one mixing tank 4 and one separator 5.
In practical application, in order to improve the quality of the slurry, a proper number of filters 12 with filtering meshes can be arranged between the slurry discharge pipe 8 and the slurry forming tank 2.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims (5)

1. A corrugated paper wastewater recovery system comprises a water collecting well for collecting each wastewater generating point in a corrugated paper mill, a pulping tank, a screen jumping, a mixing tank for receiving wastewater after the screen jumping removes slag, and a separator for separating the wastewater and foam; the separator consists of a cylinder and a cone connected to the bottom of the cylinder, the top of the cylinder is a foam outlet, the bottom of the cone is a wastewater outlet, the middle of the cylinder is connected with a water inlet pipe, the water inlet pipe is tangent to the cylinder, the water inlet pipe is connected with the outlet of the mixing tank, and a water pump is arranged between the water inlet pipe and the mixing tank; the waste water outlet is connected to a pulp forming pool, and the pulp in the pulp forming pool is used for papermaking of a cylinder paper machine.
2. The corrugated paper wastewater recovery system of claim 1, wherein the separator is a plurality of separators, the plurality of separators being connected in parallel; still include foam discharge pipe and row thick liquid pipe, the foam outlet of a plurality of separators is connected to the foam discharge pipe, the waste water export of a plurality of separators is connected to into the thick liquid pond through row thick liquid pipe.
3. The corrugated paper wastewater recovery system of claim 2, wherein the water inlet pipes connected to the plurality of separators are connected to a water inlet manifold, the water pump is connected to the water inlet manifold, and the water inlet manifold is connected to the outlet of the mixing tank.
4. The corrugated paper wastewater recovery system of claim 2, wherein the mixing basin is circular and a stirrer is disposed on the mixing basin.
5. The corrugated paper wastewater recovery system of claim 4, further comprising a foam collecting tank, wherein a foam overflow port is arranged on the upper portion of the side wall of the mixing tank, the foam overflow port is connected to the foam collecting tank, and the foam discharge pipe is also connected to the foam collecting tank.
CN201921060969.2U 2019-07-07 2019-07-07 Corrugated paper waste water recovery system Active CN210595498U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921060969.2U CN210595498U (en) 2019-07-07 2019-07-07 Corrugated paper waste water recovery system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921060969.2U CN210595498U (en) 2019-07-07 2019-07-07 Corrugated paper waste water recovery system

Publications (1)

Publication Number Publication Date
CN210595498U true CN210595498U (en) 2020-05-22

Family

ID=70713385

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921060969.2U Active CN210595498U (en) 2019-07-07 2019-07-07 Corrugated paper waste water recovery system

Country Status (1)

Country Link
CN (1) CN210595498U (en)

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