Manufacturing process for bamboo and wood composite fiberboards

Abstract

The invention discloses a manufacturing process for bamboo and wood composite fiberboards. The manufacturing process comprises the steps of material screening, cleaning, digesting, hot grinding, glue mixing and gluing, drying, pavement forming, hot pressing and cooling. In the wood chip selection process, the ratio of bamboos to woods is 1:3.5-1:4; in the digesting process, the digesting pressure is 7.3-7.7 bar, and the digesting time is 0.8-1.2min; in the hot grinding process, fiber separation is conducted on the digested wood chips through a defibrator, and fusion paraffin is added into the defibrator, wherein the paraffin applying amount is 4.0-4.5kg, and the defibrator power is 180-190kwh / t; in the glue mixing and gluing process, a tackiness agent and a curing agent are mixed for gluing, wherein the tackiness agent amount is 12-12.5%; in the drying process, the moisture content of dried fiberboards is 10-11%. The bamboo and wood composite fiberboards manufactured based on the manufacturing process for the bamboo and wood composite fiberboards are stable in quality, and the fiberboard performance can meet performance requirements of pure wood fiber boards; in addition, due to the fact that bamboo woods are cheaper than woods, production cost can be greatly reduced, and production effectiveness is improved.

Description

Technical field

[0001] The invention belongs to the field of wood processing, and specifically relates to a manufacturing process of a bamboo-wood composite fiber board. Background technique

[0002] With the rapid development of my country’s fiberboard industry and the implementation of major ecological projects such as national natural forest protection, countries around the world have banned the export of logs. The shortage of wood resources in my country has intensified the contradiction between supply and demand. It is urgent to find a resource that can replace wood. . my country is rich in bamboo resources. The development of industrial utilization of bamboo plants, replacing wood with bamboo, will be an effective way to alleviate the shortage of forest resources in my country and increase the economic benefits of plant utilization. At this stage, the process of using pure bamboo to make fiberboard is not yet mature, and some bamboo can be used to replace wood to produce fi...