CN218951187U

CN218951187U - Papermaking wastewater recycling system

Info

Publication number: CN218951187U
Application number: CN202222682194.0U
Authority: CN
Inventors: 戚开荣
Original assignee: Huaian Feixiang High Tech Packaging Material Co ltd
Current assignee: Huaian Feixiang High Tech Packaging Material Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-05-02
Anticipated expiration: 2032-10-12

Abstract

The utility model relates to the technical field of paper making wastewater recovery, and provides a paper making wastewater recovery recycling system which comprises a containing box, a settling box and an air flotation box, wherein the settling box is arranged on one side of the containing box, a stirring structure is arranged in the settling box, a screening structure is arranged at the top end of the containing box, a feed inlet is arranged on one side of the top end of the settling box, the air flotation box is arranged on one side of the settling box, a multi-stage filtering structure is arranged on one side of the air flotation box, the multi-stage filtering structure comprises a gauze filtering layer, a quartz stone filtering layer and an active carbon filtering layer, and the gauze filtering layer is arranged on one side of the air flotation box. The utility model has the advantages that the screening structure is arranged, after the production of the papermaking wastewater is finished, some paper pulp is remained in the papermaking wastewater, and the waste of raw materials is caused if the papermaking wastewater is directly discharged, so that the paper pulp in the wastewater can be screened by using the screening box, the paper pulp is screened, and the waste of the paper pulp raw materials is reduced.

Description

Papermaking wastewater recycling system

Technical Field

The utility model relates to the technical field of papermaking wastewater recovery, in particular to a papermaking wastewater recovery and recycling system.

Background

Papermaking is an important utility model of ancient Chinese laborers. There are two forms, mechanism and manual. The mechanism is that the paper pulp is continuously processed on a paper machine, the paper pulp which is suitable for the quality of the paper is diluted to a certain concentration by water, the paper pulp is preliminarily dehydrated at the net part of the paper machine to form wet paper sheets, and the wet paper sheets are pressed and dehydrated and then dried to form paper;

in the process of papermaking, a large amount of papermaking wastewater is generated, wherein the papermaking wastewater refers to wastewater generated in the pulping and papermaking process, and comprises pulping cooking waste liquid, washing waste liquid, bleaching waste water, paper machine white water and other papermaking wastewater components, has poor biodegradability, belongs to industrial wastewater which is difficult to treat, and can cause the following problems if discharged directly;

1. after the production of the papermaking wastewater is finished, some paper pulp can be remained in the papermaking wastewater, and if the papermaking wastewater is directly discharged, the waste of raw materials can be caused;

2. the papermaking wastewater contains a large amount of toxic substances to the environment, if the wastewater is discharged without treatment, the wastewater is easy to pollute the surrounding environment, and the waste of water resources is easy to occur, so that the practicability is poor.

Disclosure of Invention

The utility model aims to provide a papermaking wastewater recycling system, which is used for solving the defects that the existing papermaking wastewater is directly discharged to easily cause environmental pollution and water resource waste.

In order to solve the technical problems, the utility model provides the following technical scheme: the papermaking wastewater recycling system comprises a containing box, a settling box and an air flotation box, wherein the settling box is arranged on one side of the containing box, and a stirring structure is arranged in the settling box;

the top end of the accommodating box is provided with a screening structure, one side of the top end of the settling box is provided with a feed inlet, one side of the settling box is provided with an air flotation box, and one side of the air flotation box is provided with a multi-stage filtering structure;

the multistage filtration structure comprises a gauze filter layer, a quartz filter layer and an active carbon filter layer, wherein the gauze filter layer is arranged on one side of the air flotation tank, the quartz filter layer is arranged at the bottom end of the gauze filter layer, and the active carbon filter layer is arranged at the bottom end of the quartz filter layer.

Preferably, the screening structure comprises a fixing frame, a screening box and a screening net, wherein the screening box is arranged at the top end of the containing box, the fixing frames are arranged on two sides of the screening box, the screening net is arranged at the bottom end of the screening box, the fixing frames are provided with two groups, and the two groups of fixing frames are symmetrically distributed on two sides of the screening box. Through the use of the screening box, pulp in the wastewater can be screened, and the pulp is screened, so that the waste of pulp raw materials is reduced.

Preferably, the front cross-sectional area of the holding box is larger than the front cross-sectional area of the screening box, and an inserting structure is formed between the holding box and the screening box.

Preferably, the stirring structure comprises a servo motor, a connecting shaft and stirring rods, wherein the servo motor is arranged at the top end of the settling tank, the connecting shaft is arranged in the settling tank, and the stirring rods are arranged on two sides of the connecting shaft. Through servo motor, connecting axle and puddler's use, can carry out a stirring to waste water for the speed of flocculation, save the time of flocculation.

Preferably, the output end of the servo motor extends to the inside of the sedimentation tank, and the output end of the servo motor is connected with the top end of the connecting shaft.

Preferably, the stirring rods are provided with two groups, and the two groups of stirring rods are symmetrically distributed on two sides of the connecting shaft.

Preferably, the stirring rod is provided with a plurality of stirring rods, and a plurality of stirring rods and the connecting shaft form a welding integration. The stirring effect can be better through the use of a plurality of stirring rods.

The papermaking wastewater recycling system provided by the utility model has the advantages that: through the screening structure, after the production of the papermaking wastewater is finished, some paper pulp still remains in the papermaking wastewater, and if the papermaking wastewater is directly discharged, the waste of raw materials is caused, so that the paper pulp in the wastewater can be screened by using the screening box, the paper pulp is screened, and the waste of the paper pulp raw materials is reduced;

through the multistage filtering structure, the papermaking wastewater contains a large amount of toxic substances to the environment, if the wastewater is discharged without treatment, the environmental pollution is easy to cause, and the waste of water resources is easy to occur, so that the toxic substances and impurities in the wastewater can be subjected to multistage filtration through the use of the gauze filtering layer, the quartz filtering layer and the active carbon filtering layer, the toxic substances in the wastewater are reduced, and the wastewater can be reused;

through being provided with stirring structure, in order to make waste water speed faster when flocculating, consequently through servo motor, connecting axle and puddler's use, can carry out a stirring to waste water for the speed of flocculation, save the time of flocculation to the speed of flocculation has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic diagram of a screening structure according to the present utility model;

FIG. 4 is a schematic elevational partial structure of the stirring structure of the present utility model;

fig. 5 is a schematic front perspective view of a screening structure according to the present utility model.

Reference numerals in the drawings illustrate: 1. a storage case; 2. screening a structure; 201. a fixing frame; 202. a screening box; 203. screening a net; 3. a sedimentation tank; 4. a stirring structure; 401. a servo motor; 402. a connecting shaft; 403. a stirring rod; 5. a feed inlet; 6. an air flotation tank; 7. a multi-stage filtration structure; 701. a gauze filter layer; 702. a quartz stone filter layer; 703. an active carbon filter layer.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1-5, the recycling system for papermaking wastewater provided by the utility model comprises a holding tank 1, a settling tank 3 and an air flotation tank 6, wherein the settling tank 3 is arranged on one side of the holding tank 1, a stirring structure 4 is arranged in the settling tank 3, a screening structure 2 is arranged at the top end of the holding tank 1, a feed inlet 5 is arranged on one side of the top end of the settling tank 3, the air flotation tank 6 is arranged on one side of the settling tank 3, a multistage filtering structure 7 is arranged on one side of the air flotation tank 6, the screening structure 2 comprises a fixing frame 201, a screening tank 202 and a screening net 203, the screening tank 202 is arranged at the top end of the holding tank 1, fixing frames 201 are arranged on two sides of the screening tank 202, the bottom end of the screening tank 202 is provided with the screening net 203, the fixing frames 201 are symmetrically distributed on two groups of the two sides of the screening tank 202, and the front cross section area of the holding tank 1 is larger than the front cross section area of the screening tank 202, and an inserting structure is formed between the holding tank 1 and the screening tank 202.

The working principle of the papermaking wastewater recovery and recycling system based on the embodiment 1 is as follows: when pulp wastewater is treated, the screening box 202 is firstly hung at the top end of the holding box 1, and then fixed through the fixing frame 201, after the fixing is completed, the wastewater is poured into the screening box 202, after the wastewater is poured into the screening box 202, the pulp in the wastewater can be screened out by using the screening net 203, and the pulp is left in the screening box 202, so that the waste of papermaking raw materials is reduced, and the screening work is completed.

Example two

The embodiment further includes: the inside of the sedimentation tank 3 is provided with a stirring structure 4, the stirring structure 4 comprises a servo motor 401, a connecting shaft 402 and stirring rods 403, the servo motor 401 is arranged at the top end of the sedimentation tank 3, the connecting shaft 402 is arranged in the sedimentation tank 1, the stirring rods 403 are arranged on two sides of the connecting shaft 402, the output end of the servo motor 401 extends to the inside of the sedimentation tank 3, the output end of the servo motor 401 is connected with the top end of the connecting shaft 402, the stirring rods 403 are provided with two groups, the two groups of stirring rods 403 are symmetrically distributed on two sides of the connecting shaft 402, the stirring rods 403 are provided with a plurality of stirring rods 403, and welding integration is formed between the plurality of stirring rods 403 and the connecting shaft 402.

In this embodiment, the waste water after the screening can flow to the inside of the settling tank 3, when the waste water in the settling tank 3 needs to be treated, the flocculant is injected into the inside of the settling tank 3 through the feed inlet 5, after injection, the external power supply starts the servo motor 401, the servo motor 401 drives the stirring rod 403 to rotate through the connecting shaft 402 after rotation, and the stirring rod 403 rotates, so that the waste water is stirred, the mixing speed between the waste water and the flocculant is accelerated, and the stirring work is completed.

Example III

The embodiment further includes: one side of the air flotation tank 6 is provided with a multistage filtering structure 7, the multistage filtering structure 7 comprises a gauze filtering layer 701, a quartz filtering layer 702 and an active carbon filtering layer 703, the gauze filtering layer 701 is arranged on one side of the air flotation tank 6, the quartz filtering layer 702 is arranged at the bottom end of the gauze filtering layer 701, and the active carbon filtering layer 703 is arranged at the bottom end of the quartz filtering layer 702.

In this embodiment, after the flocculation of the wastewater is completed, the wastewater flows into the air flotation tank 6 for air flotation treatment, the wastewater after air flotation treatment flows into the gauze filter layer 701, the gauze inside the gauze filter layer 701 performs a preliminary filtration on impurities in the wastewater, the wastewater passes through the preliminary filtration of the gauze filter layer 701 and flows into the quartz filter layer 702, at this time, the quartz inside the quartz filter layer 702 performs a filtration on impurities in the wastewater again, the wastewater after the filtration again flows into the activated carbon filter layer 703 for final filtration, the activated carbon inside the activated carbon filter layer 703 performs an adsorption on impurities and peculiar smell in the wastewater, the filtered wastewater is discharged after the adsorption is completed, and is reserved as water for other purposes, the environmental pollution caused by the wastewater is reduced, and the waste of water resources is also reduced, thereby completing the recovery work of papermaking wastewater.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. Papermaking waste water recovery recycle system, including holding case (1), sedimentation tank (3) and air supporting case (6), its characterized in that: one side of the containing box (1) is provided with a settling box (3), and the interior of the settling box (3) is provided with a stirring structure (4);

the screening device is characterized in that a screening structure (2) is arranged at the top end of the containing box (1), a feed inlet (5) is formed in one side of the top end of the settling box (3), an air flotation box (6) is arranged on one side of the settling box (3), and a multistage filtering structure (7) is arranged on one side of the air flotation box (6);

multistage filtration (7) are including gauze filter layer (701), quartz filter layer (702) and active carbon filter layer (703), gauze filter layer (701) set up in one side of air supporting case (6), the bottom of gauze filter layer (701) is provided with quartz filter layer (702), the bottom of quartz filter layer (702) is provided with active carbon filter layer (703).

2. The papermaking wastewater recovery and recycling system according to claim 1, wherein: screening structure (2) are including mount (201), screening case (202) and screening net (203), screening case (202) set up in the top that holds case (1), the both sides of screening case (202) are provided with mount (201), the bottom of screening case (202) is provided with screening net (203), mount (201) are provided with two sets of, two sets of mount (201) are symmetric distribution in the both sides of screening case (202).

3. The papermaking wastewater recovery and recycling system according to claim 1, wherein: the front cross-sectional area of the containing box (1) is larger than that of the screening box (202), and an inserting structure is formed between the containing box (1) and the screening box (202).

4. The papermaking wastewater recovery and recycling system according to claim 1, wherein: stirring structure (4) include servo motor (401), connecting axle (402) and puddler (403), servo motor (401) set up in the top of sedimentation tank (3), the inside of holding case (1) is provided with connecting axle (402), the both sides of connecting axle (402) are provided with puddler (403).

5. The papermaking wastewater recovery and recycling system according to claim 4, wherein: the output end of the servo motor (401) extends to the inside of the sedimentation tank (3), and the output end of the servo motor (401) is connected with the top end of the connecting shaft (402).

6. The papermaking wastewater recovery and recycling system according to claim 4, wherein: the stirring rods (403) are arranged in two groups, and the two groups of stirring rods (403) are symmetrically distributed on two sides of the connecting shaft (402).

7. The papermaking wastewater recovery and recycling system according to claim 4, wherein: the stirring rods (403) are arranged in a plurality, and welding integration is formed between the stirring rods (403) and the connecting shaft (402).