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A continuous feeding and sizing process

A process and feeding technology, which is applied in fiber raw material processing, pulp raw material addition process, textile and paper making, etc. It can solve the problems affecting paper quality, wear of metering rods, easy clogging, etc., achieve good impurity removal effect and prolong service life , the effect of reducing the workload

Inactive Publication Date: 2017-01-11
DONGGUAN NINE DRAGONS PAPER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide a continuous feeding and sizing process, which filters and purifies the first feeding of the rubber through the feeding sieve, so as to prevent the rubber from being processed before or after feeding. The quality of the paper will be affected by pollution during the feeding process and unnecessary wear and tear will be caused to the metering rod of the sizing machine; through the triple purification process of fine sand self-sinking in the reflux tank, purification treatment by the desander, and filtration purification by the first vibrating screen, it can Effectively remove impurities such as fine sand and fibers contained in the backflow sizing material, and effectively solve the problem of easy blockage of the feeding screen. The feeding screen of the sizing machine will not be blocked, and the glue will pass normally, which greatly improves the surface of the sizing paper. Improve the quality of sizing, improve production efficiency, reduce the wear and tear on equipment such as sizing machines, and prolong the service life of equipment

Method used

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  • A continuous feeding and sizing process

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Experimental program
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Effect test

Embodiment 1

[0026] A continuous feeding and sizing process, comprising the following steps:

[0027] A. Feeding: Add fresh rubber into the feeding trough;

[0028] B. Feeding, filtering and reflux: transport the rubber in the feeding trough to the feeding sieve, and screen the qualified rubber through the feeding sieve for use by the sizing machine, and return the unqualified rubber to the reflux tank;

[0029] C. Glue sizing backflow: transport the qualified rubber material screened out in step B to the sizing machine for use by the sizing head, and return the excess rubber material to the reflux tank;

[0030] D. Purify the secondary feeding: including the following steps: D1. Part of the fine sand in the rubber material in the reflux tank is removed by gravity self-sinking in the reflux tank. D2. Transport the rubber material after gravity self-settling treatment to the desander Carry out purification treatment, get qualified rubber material and unqualified rubber material through desan...

Embodiment 2

[0041] The difference between this embodiment and embodiment 1 is:

[0042] Wherein, the reflux temperature of the rubber material is 60° C., the viscosity of the rubber material is 40 mPa·s, and the starch mass percentage of the rubber material is 8%.

[0043] The step D is provided with a reflux channel for the qualified rubber obtained by the desander to return to the reflux tank, and the flow rate of the sizing material in the reflux channel is 25m 3 / h.

[0044] The water pressure of the water spray cleaning treatment in step E is 0.7 MPa.

[0045] The processing capacity of the desander is 80 m 3 / h, the flow rate of rubber material into the desander is 80m 3 / h; the processing capacity of the first vibrating screen is 35m 3 / h, the flow size of the rubber material flowing into the first vibrating screen is 35m 3 / h.

[0046] The feeding mode of described step B is the feeding mode of feeding pump pipeline, and the feeding amount of feeding pump is 90m 3 / h; the s...

Embodiment 3

[0051] The difference between this embodiment and embodiment 1 is:

[0052] Wherein, the reflux temperature of the rubber material is 64° C., the viscosity of the rubber material is 55 mPa·s, and the starch mass percentage of the rubber material is 9%.

[0053] The step D is provided with a reflux channel for the qualified rubber material processed by the desander to return to the reflux tank, and the flow rate of the rubber material in the reflux channel is 50m 3 / h.

[0054] The water pressure of the water spray cleaning treatment in the step E is 0.8 MPa.

[0055] The processing capacity of the desander is 90m 3 / h, the flow rate of sizing material flowing into the desander is 90m 3 / h; the processing capacity of the first vibrating screen is 40 m 3 / h, the flow size of the sizing material flowing into the first vibrating screen is 40m 3 / h.

[0056] The feeding mode of described step B is the feeding mode of feeding pump pipeline, and the feeding capacity of feeding ...

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Abstract

The invention relates to the technical field of glue application, and in particular relates to a continuous feeding glue applying process comprising the following steps: A, feeding; B, filtering and refluxing the fed materials; C, performing glue application refluxing; D, purifying a secondary fed material; and E, performing sand removal refluxing. According to the process provided by the invention, a primary fed glue material is filtered and purified by virtue of a feeding screen, so that the glue material is prevented from being polluted before feeding or during feeding, further, influences to the quality of paper, and unnecessary abrasion to a measuring stick of a glue applicator are also avoided; and by virtue of a triple purification treatment process of reflux tank fine sand self-deposition, sand remover purification treatment and first vibrating screen filtering purification, the impurities including fine sand and fibers contained in a returned glue material can be effectively eliminated, the problem that the feeding screen is easily blocked is effectively solved, the feeding screen of the glue applicator cannot be blocked, the glue material passes through the glue applicator normally, the surface glue application quality of the paper subjected to glue application is greatly improved, and meanwhile, the production efficiency is improved, the abrasion to the equipment including the glue applicator and the like is reduced, and the service life of the equipment is prolonged.

Description

technical field [0001] The invention relates to the technical field of sizing, in particular to a continuous feeding sizing process. Background technique [0002] Surface sizing is an important process in papermaking, and its purpose is to improve the strength and surface properties of paper through starch. At the same time, surface sizing is used to add sizing agent to make the paper have water resistance. According to different processing methods, sizing is divided into two types: internal sizing and surface sizing. Internal sizing is to mix the sizing agent in the pulp when beating or batching, so that the fibers absorb the colloid, and then make paper; surface sizing is to spray the sizing agent on the formed paper when the paper is dry. on page. With the continuous improvement of waste paper recycling rate and the development of packaging paper industry, surface sizing has become an increasingly important and effective means to improve paper strength and surface prin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H23/32D21H23/78
Inventor 刘名中蔡联生林新阳
Owner DONGGUAN NINE DRAGONS PAPER IND
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