A kind of production method of straw board

Abstract

The invention relates to a method for manufacturing a straw board. The method is mainly carried out according to the manufacturing steps that firstly, straw is purified and then dried; secondly, the straw is mixed; thirdly, mechanical compression is carried out on the straw, and the straw is infiltrated into a high temperature paraffin liquid; fourthly, the straw infiltrated with paraffin is kept at a high temperature, pressure is increased, sucked paraffin liquid is extruded, and a straw sheet is formed; fifthly, the shape of the straw sheet obtained after secondary compression is kept, and the straw sheet is cooled and cured; sixthly, two wide surfaces of the cooled and cured straw sheet are rubbed and scraped and chips are removed; seventhly, urea-formaldehyde resin adhesives are sprayed on the surfaces of the straw sheet after the two surfaces are rubbed and scraped; eighthly, multiple sheets sprayed with the urea-formaldehyde resin adhesives are combined and compressed to form the straw board. According to the method for manufacturing the straw board, a great quantity of straw is used, the problem that waterproofness of a common straw board is poor is solved, and a scientific composite board manufacturing method is provided.

Description

technical field [0001] The invention relates to a method for making a multilayer composite board by using straw as a raw material, and belongs to the field of industrial technology. Background technique [0002] my country is a big country of food production, among which the planting production of rice and wheat ranks first in the production of various grains, which shows that the planting quantity of rice is huge. The planting of rice and wheat has also caused the problem of rice straw treatment. A large amount of rice straw is used as feed for livestock, but livestock feed can only consume a small part of rice straw, so the remaining rice straw is burned on the spot to solve the problem. It not only wastes resources, but also pollutes the environment. [0003] Many composite material companies also use straw as a raw material to produce straw materials, mostly straw sheets. The production of general straw sheets is to firstly chip the straw into shavings, then use alkali...

AI Technical Summary

Problems solved by technology

The production of general straw sheet materials is to firstly chip the straw into shavings, then use alkali water immersion treatment, and then mix and press with resin adhesive to make sheet materials; these methods are too complicated to process and consume a lot of industrial raw materials. And too much time, the cost of investment is too high, which limits the ability to deal with straw, the enterprise does not benefit much from it, the initiative of dealing with straw is not high, and cannot completely solve the problem of a large number of straw