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A method for cleaning papermaking blanket stickies

A paper-making blanket and sticky technology, which is applied in papermaking, paper machines, textiles and papermaking, etc., can solve problems such as the inability to effectively remove felt stickies, and achieve improved paper machine operation efficiency, high cleaning efficiency, and low impact Effect

Active Publication Date: 2018-05-04
上海东冠纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Chinese patent CN101768889A discloses a felt cleaning device for a paper machine, the felt cleaning device is a steam type felt cleaning device, which is installed at the frame of the paper machine guide roller, wherein the steam type felt cleaning device includes: running with the felt The steam main pipe with a vertical direction; the steam branch pipe arranged on the steam main pipe and in the same direction as the felt running direction, the steam branch pipe is provided with nozzles with a distance of 6-8 cm from the felt cloth, and a paper machine with a felt cleaning device and a felt cloth are also provided. cleaning method, but this method is still not effective in removing the stickies on the blanket

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The felt of a Metso DCT135+ paper machine in a paper mill was heavily polluted by resin, and the conventional cleaning method was not effective, resulting in abnormal production, which seriously affected production efficiency and product stability. After adopting the cleaning method of the present invention, the effect is obvious.

[0034] The method comprises the following process steps:

[0035] 1. When the paper machine is stopped, when the machine speed drops to 300m / min, the wet part spray water will be turned off, and the water in the felt will be sucked out as much as possible through the vacuum system;

[0036] 2. Open the drain valve of the white water pool under the net;

[0037] 3. Find an old blanket with a width of 3.98m (the same width as the current blanket) and a length of 2.5m;

[0038] 4. Tie the old felt to the frame under the horizontal walking table of the paper machine, make the front of the new and old felt contact and spread the old felt folded...

Embodiment 2

[0047] A method for cleaning paper-making blanket stickies, the following steps are adopted:

[0048] (1) Stop the paper machine, turn off the spray water in the wet part, and suck the moisture in the felt through the vacuum system;

[0049] (2) Open the drain valve of the white water pool under the net;

[0050] (3) Cover a layer of old blanket on the blanket to be cleaned. The width of the old blanket is not less than that of the blanket to be cleaned, and the length is 1.2 times the vertical distance from the blanket surface of the blanket to be cleaned to the upper frame on both sides of the paper machine. Tie the old blanket Put it on the frame under the horizontal walking table of the paper machine and let it hang down naturally, touch the felt to be cleaned frontally and spread the old felt along the running direction of the felt;

[0051] (4) Control the running speed of the wet end of the paper machine to 10m / min;

[0052] (5) During one cycle of running the wet end...

Embodiment 3

[0057] A method for cleaning paper-making blanket stickies, the following steps are adopted:

[0058] (1) Stop the paper machine, turn off the spray water in the wet part, and suck the moisture in the felt through the vacuum system;

[0059] (2) Open the drain valve of the white water pool under the net;

[0060] (3) Cover a layer of old blanket on the blanket to be cleaned. The width of the old blanket is not less than that of the blanket to be cleaned, and the length is 1.5 times the vertical distance from the blanket surface of the blanket to be cleaned to the upper frame on both sides of the paper machine. Tie the old blanket Put it on the frame under the horizontal walking table of the paper machine and let it hang down naturally, touch the felt to be cleaned frontally and spread the old felt along the running direction of the felt;

[0061] (4) Control the running speed of the wet end of the paper machine to 15m / min;

[0062] (5) During the 2 cycles of the wet end of the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a method for cleaning stickies of a paper making felt. The cleaning method is aimed at a blanket which is seriously polluted by stickies. A solvent washing method using gasoline or kerosene as a cleaning agent is used, and combined with a physical washing system, comprehensive thorough cleaning is achieved. Compared with the prior art, the method can perform complete covering cleaning on pollutants on the surface of the felt, a cleaning process continuously executes, and the method is low in damages of the felt, and high in cleaning efficiency, and has little influence on a papermaking system.

Description

technical field [0001] The invention relates to the field of papermaking technology, in particular to a method for cleaning papermaking felt stickies. Background technique [0002] Papermaking felt is one of the most important components of a modern paper machine, mainly used for forming and conveying paper sheets. [0003] Blankets will be polluted to varying degrees during production and use, and it is very important to have reasonable cleaning and maintenance. Blanket pollutants mainly include two types: 1. Adhesive pollution, mainly resin in the slurry, various organically synthesized additives adhere to the surface of fiber raw materials, fillers or free in the slurry to cause deposition and adhesion; 2. , fine fibers, fillers, etc. clog the felt. [0004] There are two types of blanket washing methods: physical washing and chemical washing. Physical washing is mainly used in conjunction with spray water and vacuum suction tanks; chemical washing includes alkaline was...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F1/32
CPCD21F1/32
Inventor 莫建新洪增源鲁宾孟祥强杜林
Owner 上海东冠纸业有限公司
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