Heat treatment process of agricultural straw

A technology of crop straw and process method, which is applied in the field of crop straw processing, which can solve the problems of increased adhesive consumption, excessive powdery debris, and increased cost, and achieve the effects of reducing adhesive consumption, reducing production costs, and improving gluing quality

Inactive Publication Date: 2004-07-21
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This processing method has more powdery fragments of the straw unit, and the shape of the straw unit and the increase of free radicals on the surface are not ideal, which leads to an increase in the amount of adhesive and an increase in cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Process steps: 1. Take crop stalks and straws; 2. Process and cut raw material units with a length of 50-80 mm with a cutter roller grass cutter (model ZCQ3), and use roller dust removal equipment (model ZCCZZHZ) to remove mud, sand, dust, Impurities such as paddy are screened out; 3. Heat-treat the straw with steam, steam pressure: 0.1 MPa, and the treatment time is 8 minutes; 4. Grind the heat-treated straw with a forage grinder (model is MFCP).

Embodiment 2

[0008] Process steps: 1. Take crop stalks and wheat straw; 2. Process and cut raw material units with a length of 50-80mm with a cutter roller grass cutter (model ZCQ3), and use roller dust removal equipment (model ZCCZZHZ) to remove silt, dust, Impurities such as rice are sieved out; 3. Heat-treat the wheat straw with steam, steam pressure: 0.3 MPa, and the treatment time is 5 minutes; 4. Pulverize the heat-treated wheat straw with a forage pulverizer (model is MFCP).

Embodiment 3

[0010] Process steps: 1. Take crop stalks and straws; 2. Process and cut raw material units with a length of 50-80 mm with a cutter roller grass cutter (model ZCQ3), and use roller dust removal equipment (model ZCCZZHZ) to remove mud, sand, dust, Impurities such as paddy are screened out; Three, adopt industrial microwave heating device, power is 30KW, carry out heat treatment, treatment time 2min; Four, the rice straw after heat treatment is pulverized with forage pulverizer (model is MFCP).

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PUM

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Abstract

A process for thermally processing the straw and stalk of agricultural crops in order to use them for other purposes includes cutting short, removing dust, treating by steam under 0.1-0.3 MPa for 5-8 min or by microwave for 0.5-2.0 min, and pulverizing. Said powder of straw or stalk features its high binding power to adhesive, resulting in less consumption of adhesive.

Description

technical field [0001] The invention relates to a heat treatment process for crop straw (rice straw, wheat straw), and belongs to the technical field of crop straw processing. Background technique [0002] In the prior art, during the material preparation process for producing wood-based panels from crop straws, a processing method of cutting and pulverizing the crop straws is usually adopted. This processing method has more powdery fragments of the straw unit, and the shape of the straw unit and the increase of free radicals on the surface are not ideal, which leads to an increase in the amount of adhesive and an increase in cost. Contents of the invention [0003] The purpose of the present invention is to propose a new processing method for crop stalks (rice straw, wheat straw) for the above-mentioned defects, and increase the heat treatment process in the process of preparing materials for the production of wood-based panels from crop stalks, thereby effectively improv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K9/00
Inventor 周定国张洋徐信武徐咏兰华毓坤梅长彤周晓燕于文杰
Owner NANJING FORESTRY UNIV
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