Method for producing aldehyde-free soft board made of wheat straw

A manufacturing method and soft board technology, applied in the direction of manufacturing tools, flat products, pretreatment of molding materials, etc., can solve problems such as environmental pollution of wood-based panels, and achieve the effects of no environmental pollution, low cost and simple process

Inactive Publication Date: 2006-11-15
江苏大盛板业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since it uses crop straw as raw material, it effectively solves t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Embodiment 1, the manufacturing method of the non-formaldehyde wheat straw soft board, the process steps are as follows:

[0018] 1. Coarse crushing: the hammer crushing method is adopted, and the mesh size of the screen is 15mm; the feeding requirement is uniform, and the raw material is required to be continuously fed with the raw material with close moisture content as much as possible. A water nozzle is installed at the feeding inclined belt to provide a certain degree of humidification when the moisture content of the raw material is low.

[0019] 2. Drying (Dryer CS-02-01): The heat transfer oil heats the air through the heat exchanger, and the hot air dries the coarsely pulverized raw materials in the drying box. The oil temperature (120°C) and the wind temperature ( 90℃), air volume (100%) three parameters and adjust the speed of the mesh belt to control the drying degree and moisture content of the raw materials. The speed-adjustable "S"-shaped conveyor mesh belt i...

Example Embodiment

[0029] Embodiment 2, the manufacturing method of the non-formaldehyde wheat straw soft board, the process steps are as follows:

[0030] 1. Coarse crushing: using hammer crushing, the mesh size of the screen is 10mm; the feeding requirements are uniform, and the raw materials are required to be continuously fed with the raw materials with close moisture content as much as possible. A water nozzle is installed at the feeding inclined belt to provide a certain degree of humidification when the moisture content of the raw material is low.

[0031] 2. Drying (dryer CS-02-01): The heat transfer oil heats the air through the heat exchanger, and the hot air dries the coarsely pulverized raw materials in the drying box. The oil temperature (50°C) and wind temperature ( 40℃), air volume (10%) and adjusting the speed of the mesh belt to control the drying degree and moisture content of the raw materials. The speed-adjustable "S"-shaped conveyor mesh belt is used in the dryer. Finally, the m...

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Abstract

A soft wheat straw board without aldehyde is prepared through breaking by 10-15 mm, drying, fine breaking by 3-8 mm, sorting, mixing with glue, mechanical spreading, pre-pressing, hot pressing, intermittent pressing, cutting for removing edges, and cooling.

Description

technical field [0001] The invention relates to a method for manufacturing an formaldehyde-free wheat straw soft board. It belongs to the field of wood-based panel manufacturing. Background technique [0002] At present, due to the protection of the environment and forest resources in various countries, the use of wood-based panels is gradually restricted, but the demand for wood-based panels in society is increasing. All countries have increased research on the use of crop straw to make wood-based panels. Formaldehyde-free wheat straw Soft board is a low-density wood-based board made of wheat straw. Contents of the invention [0003] The purpose of the present invention is to provide a kind of manufacturing method of the non-formaldehyde wheat straw soft board that can be industrialized. Because crop straw is used as raw material, it effectively solves the defect of environmental pollution caused by wood-based panels. [0004] Technical solution of the present inventio...

Claims

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Application Information

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IPC IPC(8): B27N3/04B27J1/00F26B3/06F26B17/08B27N1/02B27N3/08B27N3/10B27N3/18
Inventor 朱国铭张洋程海龙王健
Owner 江苏大盛板业有限公司
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