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Manufacturing process for bamboo and wood composite fiberboards

A manufacturing process, bamboo and wood composite technology, applied in the field of wood processing, to achieve the effect of increasing production efficiency, reducing production cost, and stable quality

Active Publication Date: 2014-02-19
大亚木业(肇庆)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, the technology of making fiberboard with pure bamboo alone is not yet mature, and part of bamboo can be used instead of wood to produce fiberboard temporarily.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A manufacturing process of bamboo-wood composite fiberboard includes the following steps:

[0017] 1. Material screening: Screen wood chips and bamboo chips (qualified bamboo chips and wood chips between 5-75mm). After screening, adjust the ratio of bamboo to wood by adjusting the spiral speed of the wood chips, so that the ratio of bamboo to wood is 1: 3.5;

[0018] 2. Cleaning: Wood chips and bamboo chips are washed with water to remove mixed sand, stone, metal, mud and other impurities to ensure the cleanliness of wood chips and bamboo chips, and on the other hand, appropriately increase the moisture content of wood chips and bamboo chips;

[0019] 3. Steaming: The washed wood chips and bamboo chips are cooked with saturated steam in the cooking tank, the cooking pressure is 7.3bar, and the cooking time is 0.8min;

[0020] 4. Hot milling: The steamed bamboo chips and wood chips are defibrated through a hot mill, and molten paraffin is added to the mill at the same time. The ...

Embodiment 2

[0026] A manufacturing process of bamboo-wood composite fiberboard includes the following steps:

[0027] 1. Material screening: Screen wood chips and bamboo chips (qualified bamboo chips and wood chips between 5-75mm). After screening, adjust the ratio of bamboo to wood by adjusting the spiral speed of the wood chips, so that the ratio of bamboo to wood is 1: 4;

[0028] 2. Cleaning: Wood chips and bamboo chips are washed with water to remove mixed sand, stone, metal, mud and other impurities to ensure the cleanliness of wood chips and bamboo chips, and on the other hand, appropriately increase the moisture content of wood chips and bamboo chips;

[0029] 3. Steaming: The washed wood chips and bamboo chips are cooked with saturated steam in the cooking tank, the cooking pressure is 7.5bar, and the cooking time is 1.0min;

[0030] 4. Hot milling: The steamed bamboo chips and wood chips are defibrated through a hot mill, and molten paraffin is added to the mill at the same time. The am...

Embodiment 3

[0036] A manufacturing process of bamboo-wood composite fiberboard includes the following steps:

[0037] 1. Material screening: Screen wood chips and bamboo chips (qualified bamboo chips and wood chips between 5-75mm). After screening, adjust the ratio of bamboo to wood by adjusting the spiral speed of the wood chips, so that the ratio of bamboo to wood is 1: 3.6;

[0038] 2. Cleaning: Wood chips and bamboo chips are washed with water to remove mixed sand, stone, metal, mud and other impurities to ensure the cleanliness of wood chips and bamboo chips, and on the other hand, appropriately increase the moisture content of wood chips and bamboo chips;

[0039] 3. Cooking: The washed wood chips and bamboo chips are cooked with saturated steam in the cooking tank, the cooking pressure is 7.7bar, and the cooking time is 1.2min;

[0040] 4. Hot milling: The steamed bamboo chips and wood chips are defibrated through a hot mill, and molten paraffin is added to the mill at the same time. The a...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): B27N3/04
Inventor 王上洲刘飞吴英才
Owner 大亚木业(肇庆)有限公司
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