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Desiliconizing treatment method for paddy stalk

A processing method and straw technology, applied in the field of separation, to achieve the effects of less energy consumption, less usage, and reduced energy consumption

Inactive Publication Date: 2008-02-20
SHANGHAI COMPAK ENVIRONMENTAL PROTECTION EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of rice straw desiliconization treatment method, solve most of the siliceous matter in the rice straw with existing general equipment and lower energy consumption, make it suitable for making suitable particles with MDI adhesive Technical Problems of Wood-based Panel Strength Standard

Method used

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Experimental program
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Effect test

Embodiment Construction

[0011] In the present invention, the rice straw is first cut into small sections of 80-150mm with a guillotine, a cutter head cutter or other cutting machines, and then the cut-off rice straw sections are put into a hammer crusher and hammered to about 20-50mm. . During the preliminary crushing process, on the one hand, the hammer head of the crusher breaks the rice stalks, and on the other hand, rubs the stalks to rub off the dust, part of the wax layer and silicon layer on the surface. Shake off the first crushed 20-50mm long and short rice stalks to remove the fine wax silicon layer and dust, and put them into a hammer crusher to finely crush them to 0.1-6mm particles. In the process of fine crushing, the rice stalks are further broken up, and most of the silicon particles in the stalks are rubbed out. Finally, use a grading sieve to remove the fine silicide powder and most of the grains, stem nodes and other impurities from the above-mentioned finely crushed product, and ...

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Abstract

The invention discloses a method for executing desiliconisation treatment to rice straw including the step of hammering and rubbing the straw, characterized in the following steps: a, cutting straw into little fragments with length of 80-150mm; b, hammering the fragments to primarily crush them to be 20-50mm; c, eliminating dust from littler fragments and again hammering them to be 0.1-6mm; d, through riddling, separating the particles and grain, eustipes, silicide powder. The invention can eliminate most silica from straw with present device and lower energy consumption to adjust it to make plate met the manual plate standard with MDI glue.

Description

technical field [0001] This invention relates to separation, and more particularly to the removal of silicides from rice straw by mechanical treatment. Background technique: [0002] Rice straw (commonly known as rice straw) has been mainly used as rural fuel, cattle feed or fertilizer for returning to the field since ancient times. However, with the advancement of science and technology and the development of society, rural fuels have been replaced by coal, biogas, liquefied gas and natural gas, and cattle have been eliminated by tractors. reuse. Therefore a large amount of rice stalks are often burned on the spot by farmers, making smog and polluting the atmosphere, especially the smog of burning rice stalks on both sides of the road, which has a greater impact on traffic safety. In addition, the rise of the construction industry has greatly increased the demand for boards, resulting in excessive consumption of forest resources in the world. Countries have generally expl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N1/00B07B1/00
Inventor 龚挺
Owner SHANGHAI COMPAK ENVIRONMENTAL PROTECTION EQUIP CO LTD