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Miscellaneous tree raw material wood substance grain processing technique

A technology of wood particles and raw materials, applied in the direction of wood processing equipment, manufacturing tools, etc., can solve the problems of difficult granulation and molding of miscellaneous wood raw materials, poor product quality, etc., and achieve healthy growth of forests. The effect of ecological cycle benefits

Active Publication Date: 2008-06-11
吉林宏日新能源股份有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a production process of miscellaneous wood raw material wood pellets, which solves the shortcomings of the prior art such as difficulty in granulating miscellaneous wood raw materials and poor product quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The hard miscellaneous wood wool or branch wood, sawdust, shavings and wood dust are respectively made into sawdust with a particle size of 3 to 4 mm, and mixed uniformly according to the following proportions: 70kg of hard miscellaneous wood wool, 15kg of sawdust, 10kg of wood shavings, 5kg, after drying, it is granulated and formed by the "Universal Wood Particle Forming Technology" filed by the applicant in another application.

Embodiment 2

[0014] The cork wool or branch wood, sawdust, shavings and wood dust are respectively made into sawdust with a particle size of 3 to 4 mm, and mixed uniformly according to the following proportions: 60kg of cork wool, 1kg of sawdust, 8kg of wood shavings, 3kg, after drying, it is granulated and formed by the "Universal Wood Particle Forming Technology" applied by the applicant separately.

Embodiment 3

[0016] The miscellaneous wood branches or shavings, sawdust, shavings and wood dust are respectively made into sawdust with a particle size of 3 to 4 mm, and uniformly mixed in the following proportions: 90 kg of miscellaneous wood branches or shavings, 20 kg of sawdust, and 15 kg of wood shavings, and after drying, Granulation molding.

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Abstract

The invention provides a production process of wood pellets from miscellaneous tree materials. According to different shapes, the wood materials comprise undressed lumber, crotches, branches, woodchips, and wood materials with shaped of lump, chipping or powder. Respectively employing Methods of slicing, crashing and sieving or relative combined method, processing wood materials with different shapes into chippings with particle size of 3-4mm, mixing wood materials with high lignin content with wood materials with low lignin content by mass ratio, wherein raw materials of hardwood is 60-90, various saw dust is 5-20 and various wood shavings is 8-15, after being dried, molding the mixture by granulating. The invention has rich source supply, is not limited by materials of tree species. Inexpensive materials of tree species can be chosen to collocate flexibly to meet the requirement of low-cost production. Not only the manufacture cost is reduced, but also the mechanical strength of produced wood pellets are ensured to conform to Swedish wood pellets standard.

Description

Technical field: [0001] The invention discloses a process for producing wood pellets as a raw material of miscellaneous wood, and belongs to the technical field of wood pellet fuel molding and processing. Background technique [0002] In recent years, the research and production of wood pellets in my country has been vigorously stimulated by the shortage of the European pellet fuel market. However, the production of wood pellets by many enterprises is still limited to the production of a single species of existing wood processing waste, and the amount of resources is far from enough for the market. demand, and compete with the edible fungus industry for sawdust raw materials, resulting in the skyrocketing price of raw materials in some areas, resulting in a sharp increase in production costs. situation. [0003] Since the environmentally friendly wood pellets cannot have any additives as binders, their adhesion depends on the high temperature during hot pressing to soften the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27L11/00
Inventor 陈喜龙
Owner 吉林宏日新能源股份有限公司
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