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Method for processing metal impurities in viscose production

A technology for metal impurities and viscose fibers, applied in the field of viscose fibers, can solve problems such as equipment failure, product quality decline, and metal impurities are not easy to find, and achieve the effects of reduced working pressure, thorough and uniform crushing, and optimized transmission speed.

Inactive Publication Date: 2012-05-09
YIBIN HIEST FIBER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention aims to solve the problems in the prior art that the metal impurities mixed with the alkali fiber are not easy to be found in the process from the crushing process to the aging process of the alkali fiber, resulting in the decline in the quality of the subsequent product and the failure of the subsequent equipment, and provides a viscose fiber The method of processing metal impurities in production, timely discovering metal impurities such as finely crushed racks falling into the alkali fiber, this method can effectively detect the metal impurities mixed into the crushed alkali fiber, and workers can deal with them in time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for processing metal impurities in viscose fiber production, characterized in that: comprising the following process steps:

[0029] A. Squeeze: Use a press to squeeze the porridge at 45°C to obtain hardened alkali cellulose;

[0030] The rotational speed frequency of described press machine is: 50%;

[0031] The weight percentage of the methyl cellulose content of the alkali cellulose of described hardening is 30%, and the weight percentage of alkali content is 12%;

[0032] B, pulverization: the hardened alkali cellulose obtained in step A is pulverized with a pulverizing roller to obtain finely crushed and fluffy alkali cellulose;

[0033] The crushing rollers are three crushing rollers with the same turning direction and turning clockwise, and the speed frequency is 50%;

[0034] The alkali fiber particle size of the finely crushed and fluffy alkali cellulose is 1%. (The weight percentage of particles ≥ 3mm in 100g alkali cellulose is called the particle...

Embodiment 2

[0042] A method for processing metal impurities in viscose fiber production, characterized in that: comprising the following process steps:

[0043] A. Pressing: Use a press to press the porridge at 60°C to obtain hardened alkali cellulose;

[0044] The rotating speed frequency of described press machine is: 70%;

[0045] The weight percentage of the methyl cellulose content of the alkali cellulose of described hardening is 35%, and the weight percentage of alkali content is 18%;

[0046] B, pulverization: the hardened alkali cellulose obtained in step A is pulverized with a pulverizing roller to obtain finely crushed and fluffy alkali cellulose;

[0047] The crushing rollers are three crushing rollers with the same turning direction and turning clockwise, and the speed frequency is 90%;

[0048] The alkali fiber particle size of the finely crushed and fluffy alkali cellulose is 5%. (The weight percentage of particles ≥ 3mm in 100g alkali cellulose is called the particle si...

Embodiment 3

[0056] A method for processing metal impurities in viscose fiber production, characterized in that: comprising the following process steps:

[0057] A. Squeeze: Use a press to squeeze the porridge at 52.5°C to obtain hardened alkali cellulose;

[0058] The rotational speed frequency of described press machine is: 60%;

[0059] The weight percentage of the methyl cellulose content of the alkali cellulose of described hardening is 32.5%, and the weight percentage of alkali content is 15%;

[0060] B, pulverization: the hardened alkali cellulose obtained in step A is pulverized with a pulverizing roller to obtain finely crushed and fluffy alkali cellulose;

[0061] The crushing rollers are three crushing rollers with the same turning direction and turning clockwise, and the speed frequency is 70%;

[0062] The alkali fiber particle size of the finely crushed and fluffy alkali cellulose is 3%. (The weight percentage of particles ≥ 3mm in 100g alkali cellulose is called the part...

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PUM

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Abstract

The invention provides a method for processing metal impurities in viscose production, which comprises the following steps of squeezing, smashing, metal impurity detection, metal impurity processing and the like, wherein through the optimization of the squeezing and smashing technologies, a metal detector which is connected with a DCS (Distributed Control System) is arranged on a delivery belt for delivering to an ageing working procedure, so that metal impurities, such as thinly smashed racks and the like falling into alkali fiber, are timely found out. According to the method provided by the invention, the metal impurities mixed into the smashed alkali fiber can be effectively detected and timely processed by workers, so that over 99% of metal impurities can be detected and timely processed, therefore the smooth operation of the whole production technology and the quality of final products are ensured.

Description

technical field [0001] The invention relates to a method for processing impurities in production, more specifically, the invention relates to a method for processing metal impurities in viscose fiber production, which belongs to the field of viscose fiber. Background technique [0002] Textile is one of the important industries in our country, which accounts for a large proportion of the national economy, and viscose filament / short yarn is an indispensable part of the entire textile industry, so how to improve the continuous and stable production level of viscose filament / short yarn and reduce the Production accidents, improving labor productivity, and reducing production costs are also the only way to upgrade the textile industry. [0003] Viscose fiber is made of α-cellulose (called pulp), which is treated with caustic soda to generate alkali cellulose, referred to as alkali fiber, and then treated with carbon disulfide to obtain orange-yellow cellulose xanthate sodium, an...

Claims

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Application Information

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IPC IPC(8): C08B1/08D01F2/06
Inventor 唐孝兵周林
Owner YIBIN HIEST FIBER