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Purification system for surface sizing starch glue solution and application of purification system

A technology of surface sizing starch and purification system, which is applied in chemical instruments and methods, water repellent addition, pulp raw material addition process, etc., can solve problems such as poor slag removal effect of glue solution, and achieve the effect of reducing easy clogging

Pending Publication Date: 2020-10-30
SHANYING INT HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a purification system for surface sizing starch glue, the purpose of which is to solve the problem of poor slag removal effect of the existing glue

Method used

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  • Purification system for surface sizing starch glue solution and application of purification system
  • Purification system for surface sizing starch glue solution and application of purification system
  • Purification system for surface sizing starch glue solution and application of purification system

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A purification system for surface sizing starch glue of this embodiment includes a sizing tank 100, a loading screen 210, a sizing machine 300, a return tank 400, a slag remover 510, and a square vibration, which are connected by pipes in sequence and form a loop. A sieve 520, where the glue in the gluing tank 100 flows to the upper sieve 210 and is left in the sizing machine 300 to form a gluing unit 200. The gluing unit 200 removes impurities from the gluing tank 100 and passes it into The upper and lower sizing sticks in the sizing machine 300 coat the front and back of the paper with glue and form a film; the glue returned from the sizing machine 300 enters the return tank 400 and passes through the slag remover 510 and the square vibrating screen After 520 impurity removal, it flows to the upper glue tank 100 to form a glue-back unit. The glue-back unit recovers the excess glue from the sizing machine 300, and performs a series of purification and impurity removal pr...

Embodiment 2

[0043] The purification system of the surface sizing starch glue solution of this embodiment is basically the same as that of Embodiment 1, and the difference is that a sediment tank 530 is also provided in the reflux unit 500.

[0044] Combine figure 2 The feed port of the slag tank 530 is connected to the slag discharge port of the slag remover 510 for recovering and processing the slag discharged from the slag remover 510. The structure of the sediment tank 530 is as image 3 As shown, a first baffle 531, a second baffle 532, a third baffle 533, and a fourth baffle 534 are arranged side-by-side at the top. After the slag discharged from the cleaner 510 enters the slag tank 530, it passes through the Disturbance of a baffle 531, a second baffle 532, a third baffle 533, and a fourth baffle 534, under the action of inertia, heavy slag sinks into the bottom of the slag tank 530, and the bottom of the slag tank 530 is provided with a slag discharge port, The closing of the slag po...

Embodiment 3

[0047] The purification system of the surface sizing starch glue solution of this embodiment is basically the same as that of the embodiment 2, and the difference lies in that: the gluing unit 200 is provided with two pressure screens connected in series, each of which is a section of pressure screen 211 And the two-stage pressure screen 212, in which the screen slits of the first-stage pressure screen 211 and the second-stage pressure screen 212 are both 80-100 μm.

[0048] Combine Figure 5 As shown, in the gluing unit 200, the glue is transported by the feeding pump from the gluing tank 100 to the pressure screen 211, the pressure at the upper part of the pressure screen 211 is 72Kpa, and the pressure at the lower part of the pressure screen is 57Kpa. , The inlet and outlet pressure difference is set to 15Kpa, the first stage of slag discharged from the bottom of the pressure screen 211 enters the reflux tank 400 for processing, and the good slurry through the first stage of pr...

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Abstract

The invention discloses a purification system for a surface sizing starch glue solution and an application of the purification system. A gluing groove, a glue applicator and a backflow groove are sequentially connected through pipelines to form a loop, wherein the pipeline between the gluing groove and the glue applicator forms a gluing unit, the glue applicator is connected with the backflow groove, and a pipeline leading to the gluing groove forms a backflow unit; the purification system is characterized in that the gluing unit further comprises a feeding screen, and the backflow unit further comprises a slag remover and a square vibration screen which are connected in sequence; the feeding sieve is used for filtering impurities in a glue solution of the gluing unit; the slag remover isused for removing impurities with high density in the glue solution of the backflow unit; the square vibrating screen is used for removing large-volume impurities in the glue solution of the backflowunit; according to the application of the purification system, an upper roller and a lower roller of the glue applicator are respectively provided with an independent purification system for simultaneously removing impurities. According to the invention, the backflow glue solution is subjected to centrifugal force deslagging and volume deslagging in sequence, so that the cleanliness of the backflow starch glue solution is more effectively improved.

Description

Technical field [0001] The invention belongs to the technical field of waste paper papermaking production technology, and relates to a purification system for surface sizing starch glue and an application purification system. Background technique [0002] The main raw material for the production of packaging paper is waste paper. Waste paper recycling requires certain special properties to manufacture boxboard base paper, including paper strength, printability, water resistance, stiffness and a series of properties. Among them, waste paper is shredded, decolorized and pulped through various processes to produce recycled paper. Since 80% of the raw materials of packaging paper come from recycled waste paper, waste paper is known as an environmentally friendly product with low energy consumption and light pollution. paper. The current national policy’s restrictions on imported waste paper make the production of packaging paper dominated by national waste. The so-called national wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H23/56D21H23/58D21H21/16B01D36/04
CPCD21H23/56D21H23/58D21H21/16B01D36/045
Inventor 吴建雄陈学萍宋杰林飞陈剑锋
Owner SHANYING INT HLDG CO LTD
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