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Method for manufacturing tile by rice/wheat straw

A technology of wheat straw and a production method, which is applied in the direction of manufacturing tools, flat products, pretreatment of molding materials, etc., can solve problems such as non-degradation

Inactive Publication Date: 2006-10-11
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the building is demolished, it will become construction waste and cannot be degraded

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, the process of the production method of rice / wheat straw tiles:

[0022] 1. Raw material treatment process: The steps are to cut the straw into 30mm straw units, and remove the broken leaves, silt and other impurities in the raw material after the first screening; use a crusher (model ZCQ3) to crush, and after the second screening, remove Excessive dust in the broken material; use a rotor dryer (model BG2327), the drying temperature is 80 ° C, and the moisture content is 6%; use a screening machine (model BF1626C) to screen, and the straw broken material after the coarse material is screened enters the silo;

[0023] 2. Sizing process: the steps use isocyanate as the adhesive, and the sizing amount is 5% of the weight of the dry straw; when sizing, add a waterproofing agent (model NLW-1) that accounts for 1% of the weight of the dry straw; -The glue mixing is completed in the drum combined glue mixing machine, and the moisture content of the raw materials ...

Embodiment 2

[0027] Embodiment 2, the process points of the production method of rice / wheat straw tiles:

[0028] 1. Raw material treatment process: The steps are to cut the straw into 50mm straw units, and remove the broken leaves, silt and other impurities in the raw material after the first screening; use a pulverizer (model ZCQ3) to crush, and after the second screening, remove Excessive dust in the broken material; use a rotor dryer (model BG2327), the drying temperature is 150 ° C, and the moisture content is 6%; use a screening machine (model BF1626C) to screen, and the straw broken material after the coarse material is screened enters the silo;

[0029] 2. Sizing process: The steps use isocyanate as the adhesive, and the sizing amount is 7% of the weight of the dry straw; when sizing, add a waterproofing agent (model NLW-1) that accounts for 1% of the weight of the dry straw; -The glue mixing is completed in the drum combined glue mixing machine, and the moisture content of the raw...

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Abstract

The invention relates to a method for producing rice / wheat straw tile, which comprises: the raw material treatment; the gluing step; the spreading and demoulding step; the thermal compress step; and after-treatment step. The invention can be used to replace traditional tile, with lower weight and saved land resource. The used straw can be decomposed; therefore, the detached building will not be waste. And it has lower cost, better social and economic benefits, while the water adsorption rate of straw tile can reach 21% which is lower than asbestos cement tile, and its anti-bend strength is significantly higher than the support strengths of sinter tile and asbestos cement tile; and the longitudinal anti-bend strength is reduced to 1400N, and the transverse one is reduced to 2200N.

Description

technical field [0001] The invention relates to a method for manufacturing rice / wheat straw tiles, which belongs to the manufacture of wood-based panels [0002] technology field. Background technique [0003] Traditional tiles are made of sintered clay, which requires a lot of land resources. Sintering traditional tiles with clay not only wastes resources, but also emits harmful gases and pollutes the environment during the sintering process of traditional tiles. Traditional tiles fired from clay are heavy in weight. After the building is demolished, it will become construction waste and cannot be degraded. Contents of the invention [0004] The purpose of the present invention is to propose a method for producing rice / wheat straw tiles using crop straws as raw materials. Rice / wheat straw tiles can be used as a new substitute for traditional tiles, which can save valuable land resources and are environmentally friendly and pollution-free. [0005] Technical solution ...

Claims

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Application Information

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IPC IPC(8): B27M3/02B27L11/00B27N1/02B27N3/08
Inventor 吴小平周定国冉染张洋梅长彤徐咏兰华毓坤周哓燕徐信武
Owner NANJING FORESTRY UNIV
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