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Method and equipment for extracting fiber from stalks

A straw fiber and straw technology, which is applied in the field of plant fiber extraction, can solve the problems of grounding of air flights in traffic accidents, comprehensive utilization rate of less than 10%, large capital investment, etc., and achieves small capital investment, simple and convenient equipment, and equipment investment. The effect of the province

Inactive Publication Date: 2006-09-13
徐丕义
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Rice is the main food crop in my country, and the output of rice straw is also quite high. At present, the comprehensive utilization rate is less than 10%, and more than 90% of rice straw is burned as waste. The burning process pollutes the environment, and even causes traffic accidents and air flights. grounded
There is also a method of using straw fibers, plastics and other auxiliary materials to make composite wood instead of natural wood through mixing, kneading, exhaust, and pressurized extrusion, which is an effective way to comprehensively utilize straw; but the process of making composite wood, The equipment is complicated and the capital investment is large; it requires high professional skills, which is difficult for ordinary personnel to master; and the remaining materials after fiber extraction still need to be processed

Method used

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  • Method and equipment for extracting fiber from stalks
  • Method and equipment for extracting fiber from stalks
  • Method and equipment for extracting fiber from stalks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1. extracts the method for rice straw fiber, comprises the steps:

[0041] (1) stock preparation, raw material is selected from the stalk of paddy rice;

[0042] (2) remove miscellaneous, the stalk of paddy rice is removed dust sundry;

[0043] (3) Cooking, putting the stalks into a cooking container with water for cooking;

[0044] (4) dehydration, dehydration of the cooked stalks, drying and dehydration with a centrifuge to a moisture content of 15%;

[0045] (5) extract fiber, extract the fiber of straw with extraction device;

[0046] (6) Filtration, the fibers and attached tissues are separated by a filtration device, and collected and stored separately.

Embodiment 2

[0047] Embodiment 2. extracts the method for wheat straw fiber, comprises the steps:

[0048] (1) stock preparation, raw material is selected from the stalk of wheat;

[0049] (2) remove miscellaneous, the stalk of wheat is removed dust sundry;

[0050] (3) Cooking, putting the stalk section into a cooking container with water;

[0051] (4) dehydration, dehydration of the cooked stalks, drying to a moisture content of 25% with a centrifuge;

[0052] (5) extract fiber, extract the fiber of straw with extraction device;

[0053] (6) Filtration, the fibers and attached tissues are separated by a filtration device, and collected and stored separately.

Embodiment 3

[0054] Embodiment 3. extract the method for corn stalk fiber, comprise the steps:

[0055] (1) preparing materials, raw materials are selected from corn stalks, which can be cut into sections;

[0056] (2) Remove impurities, remove dust and impurities from the corn stalks;

[0057] (3) Cooking, put the straw section into the cooking container with water and steam

[0058] (4) dehydration, dehydration of the cooked stalks, drying to a moisture content of 20% with a centrifuge;

[0059] (5) extract fiber, extract the fiber of straw with extraction device;

[0060] (6) Filtration, the fibers and attached tissues are separated by a filtration device, and collected and stored separately.

[0061]In the above examples, the cooking is generally carried out at 1-3 atmospheric pressure for 2-10 hours; then kept at 50°C to less than 100°C under normal pressure for 2-72 hours.

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Abstract

The invention is a method and device for extracting stalk fiber, characterized by comprising the steps of: (1) stock preparationú”(2) cuttingú”(3) cookingú”(4) dehydratingú”(5) extracting fiberú” and (6) filtering, and the device comprises a stalk fiber extractor and a filter, where the stalk fiber extractor comprises a steel wire wheel whose peripheral surface is bestrewed with projecting points; and the filter comprises a screen wheel whose outer surface is of a steel wire sieve bestrewed with sieve pores and which is below the steel wire wheel, and one axial end of the screen wheel is connected with an exhaust fan. And the device can be driven by tractor through drive mechanism to directly extract and outputting the fiber. And the invention can synthetically utilize stalks, reducing wood consumption and beneficial to environmental improvement and applied to town and country.

Description

technical field [0001] The invention relates to plant fiber extraction technology, in particular to a method and equipment for extracting straw fiber. Background technique [0002] Rice is the main food crop in my country, and the output of rice straw is also quite high. At present, the comprehensive utilization rate is less than 10%, and more than 90% of rice straw is burned as waste. The burning process pollutes the environment, and even causes traffic accidents and air flights. Grounded. On the other hand, my country's forest resources are scarce, raw wood is in short supply, and there is an urgent need for new wood resources. Chinese patent application 03113643 discloses a method for extracting banana stalk fibers. Its flow process is to cut off the original stalk with a cutting machine, axially break it with a chipper, tear it into sheets by hand, and scrape the hemp to extract the fibers. There is also a method of using straw fibers, plastics and other auxiliary mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C5/00
Inventor 徐莉莉徐静静
Owner 徐丕义
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