CN211171381U

CN211171381U - Thick liquid line feed system

Info

Publication number: CN211171381U
Application number: CN201921684165.XU
Authority: CN
Inventors: 李文斌
Original assignee: 东莞理文造纸厂有限公司
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-08-04
Anticipated expiration: 2029-10-09

Abstract

The utility model relates to the technical field of papermaking equipment, in particular to a pulp line supply system, which comprises a conveyer belt, a medium consistency pulper, a desander, a pre-grinding pool, a long fiber pulp supply system, a double-disc pulping machine, a post-grinding pool and a bottom layer pulping pool, wherein the feeding end of the conveyer belt is connected with the medium consistency pulper, the medium consistency pulper is connected with the desander, the desander is connected with the pre-grinding pool, the other end of the pre-grinding pool is connected with the long fiber pulp supply system, the pre-grinding pool is connected with the double-disc pulping machine, the double-disc pulping machine is connected with the post-grinding pool, and the post-grinding pool is connected with the bottom layer pulping pool; compared with the prior art, reasonable design and layout improves the supply capacity of the pulp line, ensures that a plurality of workshops supply pulp to meet normal production, and in addition, the recovery pulp matched with the long-fiber pulp supply system is used together to reduce the usage amount of imported waste paper, reduce fiber loss and unit consumption influence caused by using the waste paper, and improve the product quality and yield while reducing the input cost of raw materials.

Description

Thick liquid line feed system

Technical Field

The utility model relates to a papermaking equipment technical field, concretely relates to thick liquid line feed system.

Background

No matter what method or equipment is adopted for pulping the waste paper, the main purposes are to remove impurities and untwined pulp, and the whole process comprises production procedures of disintegration, screening, washing and the like. The process is simplified, the auxiliary equipment is reduced, and repeated configuration is avoided; the production characteristics of the equipment are fully utilized, the production capacity of the equipment is improved, and the key points of improving the product quality and reducing the production cost are achieved.

With the increase of the yield, the feeding of the original waste paper pulp line is tense. In order to improve the pulp supply capacity of the pulp line, redesign and development of a pulp line system are carried out, and it is important to add a new pulp supply line.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rationally distributed, simple and easy thick liquid line feed system of structure to not enough among the prior art.

The purpose of the utility model is realized through the following technical scheme: the application provides a thick liquid line feed system, including the conveyer belt, well dense pulper, the desander, the pool before the mill, long fine confession thick liquid system, the double-disk fiberizer, pond and bottom pulping tank after the mill, the pay-off end and the well dense pulper of conveyer belt are connected, well dense pulper is connected with the desander, the desander is connected with the pool before the mill, the other end and the long fine confession thick liquid headtotail in the pool before the mill, the pool before the mill is connected with the double-disk pulper, the double-disk fiberizer is connected with the pond after the mill, the pond after the mill is connected with bottom pulping tank.

The long fiber pulp supply system comprises a long fiber pulp storage tank, a long fiber sand remover, a long fiber pulp grinder and a long fiber pulp forming tank which are connected in sequence.

Wherein the pre-grinding pool, the post-grinding pool and the bottom layer pulping pool are all made of stainless steel materials.

The utility model has the advantages that: the working process of the slurry line supply system is as follows: various pulp boards, broken paper and various waste papers are firstly placed on a conveyor belt and are conveyed into a medium consistency pulper for pulping by the conveyor belt, the medium consistency pulper has the characteristics of strong defibering capacity, wide application range, simple structure, convenient operation and maintenance and the like, then the waste papers after the pulping are conveyed into a desander, impurities in the waste papers are firstly separated out to obtain preliminarily purified waste paper pulp, and the preliminary purification can remove larger impurities in the pulp, such as metal particles, sand grains, fiber bundles, pulp clusters and the like, so that the subsequent equipment can be protected from being damaged; the waste paper pulp of preliminary purification then carries to the pond before grinding and mixes with the thick liquid that long fine confession thick liquid system provided, thereby adjust the concentration of waste paper pulp, the waste paper pulp of adjusting the concentration enters into the double-disc fiberizer, after squeezing the spiral dehydration in the double-disc fiberizer, distribute to the bottom layer pulping tank at last and carry out the papermaking, the thick liquids of bottom layer pulping tank carry out papermaking shaping process through the system that flows, compared with the prior art, reasonable design layout, improve thick liquid line supply capacity, guarantee that a plurality of workshops supply thick liquid and satisfy normal production, in addition, the recovery thick liquid that cooperates with long fine confession thick liquid system uses together, in order to reduce import waste paper use amount, reduce fibre loss and the unit consumption influence that uses waste paper to bring. The input cost of raw materials is reduced, and the product quality and the yield are improved.

Drawings

The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.

Fig. 1 is a flow chart of the pulp line supply system of the present invention.

Reference numerals: the system comprises a conveying belt 1, a medium consistency pulper 2, a sand remover 3, a pre-grinding tank 4, a long fiber pulp supply system 5, a double-disc pulping machine 6, a post-grinding tank 7 and a bottom layer pulp forming tank 8.

Detailed Description

The invention will be further described with reference to the following examples.

The utility model discloses a slurry line feed system's embodiment, as shown in fig. 1, including conveyer belt 1, well dense pulper 2, desander 3, prefum 4, long fine pulp supply system 5, double-disc refiner 6, mill back pond 7 and bottom pulping tank 8, the pay-off end and the well dense pulper 2 of conveyer belt 1 are connected, well dense pulper 2 is connected with desander 3, desander 3 is connected with prefum 4, the other end and the long fine pulp supply system 5 of prefum 4 are connected, prefum 4 is connected with double-disc refiner 6, double-disc refiner 6 is connected with mill back pond 7, mill back pond 7 is connected with bottom pulping tank 8.

Preferably, the long fiber pulp supply system 5 comprises a long fiber pulp storage tank, a long fiber sand remover 3, a long fiber pulp grinder and a long fiber pulp forming tank which are connected in sequence.

In order to allow the stock to be deaerated during transport, the entire flow system is closed. The pre-grinding tank 4, the post-grinding tank 7 and the bottom layer pulping tank 8 are all made of stainless steel materials.

It should be noted that the medium consistency pulper 2 employs a hybrid rotor in which a low consistency rotor and a high consistency rotor are combined. It contains six vanes similar to the low-concentration rotor, and also plays a role of cleaning the sieve plate when crushing the pulp. The desander 3 provides certain pressure through the pump sending to send into the 3D shape intraductal of desander with the thick liquids with tangential direction, the thick liquids takes place vortex motion along the pipe inner wall, and the centrifugal force that produces throws solid impurity to the pipe wall, and solid impurity falls to row cinder notch along the pipe wall because of the action of gravity and discharges. The double-disc pulping machine 6 has three grinding discs in total, two grinding discs on two sides are fixed, and the middle grinding disc rotates to form two grinding areas respectively. The 1# and 2# grinding discs on both sides can move along the axial direction to control the distance between the two grinding areas. The No. 1 millstone is a motor-controlled feed, and the No. 2 millstone is guided to move in and out by the pressure generated between two grinding areas by two slurry inlet pipes: the double-disc pulp grinder 6 increases the surface area of single fiber by further refining, swelling and kneading, crushing and other actions of pulp after defibering the hydropulper

The working process of the slurry line supply system of the embodiment is as follows: various pulp boards, broken paper and various waste papers are firstly placed on a conveying belt 1 and are conveyed into a medium consistency pulper 2 for disintegration by the conveying belt 1, the medium consistency pulper 2 has the characteristics of strong defibering capacity, wide application range, simple structure, convenient operation and maintenance and the like, then the disintegrated waste papers are conveyed into a desander 3, impurities in the waste papers are firstly separated out to obtain preliminarily purified waste paper pulp, and the preliminarily purified waste paper pulp can remove larger impurities in pulp, such as metal particles, sand grains, fiber bundles, pulp clusters and the like, so that subsequent equipment can be protected from being damaged; the waste paper pulp of preliminary purification then conveys to mill forebay 4 and mixes with the thick liquid that long fine confession thick liquid system 5 provided, thereby adjust the concentration of waste paper pulp, the waste paper pulp of adjusting the concentration enters into double-disc refiner 6, after squeezing the spiral dehydration in double-disc refiner 6, distribute to bottom layer pulping tank 8 at last and make, the thick liquids of bottom layer pulping tank 8 carry out papermaking shaping process through the approach system, compare with prior art, reasonable design layout, improve thick liquid line supply capacity, guarantee that a plurality of workshops supply thick liquid and satisfy normal production, in addition, the recovery thick liquid that cooperates long fine confession thick liquid system 5 uses together, in order to reduce import waste paper use amount, reduce fibre loss and unit consumption influence that the waste paper brought. The input cost of raw materials is reduced, and the product quality and the yield are improved.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A slurry line feeding system characterized by: including conveyer belt, well dense pulper, desander, mill forebay, long fine confession thick liquid system, double-disc fiberizer, mill back pond and bottom pulping pond, the pay-off end and the well dense pulper of conveyer belt are connected, well dense pulper is connected with the desander, the desander is connected with mill forebay, and the other end and the long fine confession thick liquid system in mill forebay are connected, and mill forebay is connected with double-disc pulper, and double-disc fiberizer is connected with mill back pond, and mill back pond is connected with bottom pulping pond.

2. The slurry line feeding system according to claim 1, wherein: the long fiber pulp supply system comprises a long fiber pulp storage tank, a long fiber sand remover, a long fiber pulp grinder and a long fiber pulp forming tank which are connected in sequence.

3. The slurry line feeding system according to claim 1, wherein: the pre-grinding pool, the post-grinding pool and the bottom layer pulping pool are all made of stainless steel materials.