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Method for separating and refining silk reeling leftovers

A technology of foot dregs and raw materials, which is applied in the field of waste treatment after silkworm cocoon processing, can solve the problems of affecting air environment sanitation, long processing cycle, large treatment costs, etc., and achieves great economic and social benefits without affecting air and environmental sanitation , to avoid the effect of waste water and odor

Inactive Publication Date: 2012-09-26
NANCHONG YINHAI SILK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, it has not been effectively recycled, and it is often treated as waste, which not only affects the environment, but also costs huge treatment costs, wasting precious feed and textile resources
Although it has also been used by some silk spinning factories, it has to go through manual selection and removal of impurities, manual material separation, refining and primary refining, lower vat corrosion, material washing, dehydration, bleaching, dehydration, refining, washing, dehydration, softening , dehydration, and drying into a total of 14 processes of dry products. Among them, the rot process alone takes five to seven days. There are many problems such as long processing cycle, large amount of waste water, serious impact on air and environmental sanitation, and the product The cost is also quite high, and it is not worth the candle to use it

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, carry out according to the following steps:

[0019] a. Artificial selection and removal of impurities, artificial selection of impurities in the foot dregs (grass clippings, hemp silk, chemical fibers, etc.);

[0020] b, pupa cotton separation, the foot dregs raw material after the slag removal is sent into a screw type extruding pulverizing separator, obtain silkworm pupa powder, foam cotton respectively;

[0021] c. Low-temperature pre-soaking, add soda ash and soap solution to the foam according to the bath ratio of 1:30, heat it to 40-45°C with steam, and soak for two hours;

[0022] d. Dehydration, take out the foam after low-temperature pre-soaking and put it in a dehydrator for seven to nine minutes;

[0023] e. Refining and bleaching, put the dehydrated foam into the raw material in the refining barrel at the ratio of bath ratio 1:40, control the temperature at 70-75°C, add hydrogen peroxide, water glass, soda ash, soap liquid, and refine for 30 ...

Embodiment 2

[0032] Embodiment 2, carry out according to the following steps:

[0033] a. Artificial selection and removal of impurities, artificial selection of impurities in the foot dregs (grass clippings, hemp silk, chemical fibers, etc.);

[0034] b, pupa cotton separation, the foot dregs raw material after the slag removal is sent into a screw type extruding pulverizing separator, obtain silkworm pupa powder, foam cotton respectively;

[0035] c. Low-temperature pre-soaking, add soda ash and soap solution to the foam according to the bath ratio of 1:30, heat it to 40-45°C with steam, and soak for two hours;

[0036] d. Dehydration, take out the foam after low-temperature pre-soaking and put it in a dehydrator for seven to nine minutes;

[0037] e. Refining and bleaching, put the dehydrated foam into the raw material in the refining barrel at the ratio of bath ratio 1:40, control the temperature at 70-75°C, add hydrogen peroxide, water glass, soda ash, soap liquid, and refine for 30 ...

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PUM

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Abstract

The invention discloses a method for separating and refining silk reeling leftovers, which is characterized by comprising the following steps: (a) artificially sorting and removing impurities; (b) separating pupae and cotton; (c) preimpregnating at low temperature; (d) dehydrating; (e) refining and blanching; (f) taking out the material, and flushing; (g) dehydrating; (h) softening; (i) dehydrating; and (j) baking. Since the pupae / cotton separation is firstly adopted and the decomposition step in the original technique is removed, the invention avoids massive wastewater and peculiar smell generated in the pupae decomposition process, and pupa powder which can be used as precious animal albumen is obtained. The experiment indicates that one ton of waste leftovers can be used for obtaining 650 kilograms of pupa powder and about 300 kilograms of silk cotton by using the method disclosed by the invention. The processing time is shortened from eight days to one day. Thus, the invention completely achieves the goals of short processing cycle, less wastewater, no influence on air and environmental hygiene and low processing cost.

Description

technical field [0001] The invention relates to a method for treating waste after silkworm cocoon processing, in particular to a method for separating and refining silk reeling waste. Background technique [0002] As we all know, foot dregs are the waste after silk reeling. It contains many pupae, high oil content, high impurity content, less cotton grains and short fibers. For a long time, it has not been effectively recycled, and it is often treated as waste, which not only affects the environment, but also costs a huge amount of treatment costs, wasting precious feed and textile resources. Although it has also been used by some silk spinning factories, it has to go through manual selection and removal of impurities, manual material separation, refining and primary refining, lower vat corrosion, material washing, dehydration, bleaching, dehydration, refining, rinsing, dehydration, and softening. , dehydration, and drying into a total of 14 processes of dry products. Among...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01B7/06
Inventor 何国强何国君
Owner NANCHONG YINHAI SILK
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