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Method for preparing straw raw material of MDI glue straw artificial board and production line

A technology for wood-based panels and straws, which is applied in the processing field of wood or similar materials, can solve the problems of increasing investment in plant equipment, increasing investment in equipment management and maintenance, and repairing, shortening drying time, and improving fine crushing. effect, effect-enhancing effect

Inactive Publication Date: 2009-07-08
上海康拜环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the factory uses straw without pith core and straw with pith core as raw material, two different types of raw material preparation production lines must be configured, which will not only increase the investment in plant construction and equipment, but also increase the cost of production. Equipment management, maintenance and repair investment

Method used

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  • Method for preparing straw raw material of MDI glue straw artificial board and production line

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Embodiment Construction

[0013] The straw raw material preparation method of the MDI glue straw artificial board of the present invention comprises the coarse crushing, drying, homogenization, magnetic separation, fine crushing and classification procedures of the existing straw raw material preparation method, but its homogeneous procedure needs to be The drying process is carried out twice before and after, and after fine crushing, the separation of stems and straws and air separation are carried out in turn, and then they are classified. The straw materials after classification can be stored in advance or directly sent to board making. The procedure is as follows:

[0014] Fine crushing, homogenization, drying, homogenization, magnetic separation, selection, stem and straw separation, winnowing separation, grading, storage.

[0015] According to above-mentioned technological process, the production assembly line that the present invention uses and operating process are as follows (referring to figu...

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Abstract

The present invention belongs to the processing of material or similar material. A method for preparing straw as raw material of MDI adhesive artificial straw board comprises the steps of coarse crushing of raw material, furnace drying, quality uniforming, magnetic separating, finely crushing and grading. The invention is characterized in that the method is added with the steps of quality uniforming, stalk-straw separating and air separating. Particularly the method of the invention comprises the following steps: coarse crushing, quality uniforming, magnetic separating, finely crushing, stalk-straw separating, air separating and grading. The invention settles the technical problem that the preparing method and production flow of a same material are suitable for the preparing the material of straw with core and straw without core and are satisfying for the requirement of MDI adhesive to the humidity consistency of raw material.

Description

Technical field: [0001] The invention belongs to the processing of wood or similar materials, and in particular relates to a preparation method and a production line of straw raw materials using crop straws as board-making materials. Background technique: [0002] Using crop waste stalks (such as wheat stalks, rice stalks, corn stalks, rape stalks, bean stalks, etc.) Many documents have made public reports. Especially recently, people pay more and more attention to the living, working and living environment. The board industry has also made a lot of research and improvement on the types and components of the binder and the hot pressing process of the board, so as to reduce the release of harmful formaldehyde gas in the final product. The most notable is the use of isocyanate glue (MDI glue) to replace the traditional formaldehyde adhesive. Taking a broad view of the existing crop stalks that can be used to manufacture plates, they can be divided into two categories, one is...

Claims

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Application Information

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IPC IPC(8): B27K1/00
Inventor 王步宁高翔
Owner 上海康拜环保科技有限公司
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