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Process method for producing medium density fiber board by utilizing waste wood

A process method and medium-density technology, which is applied in the direction of wood processing equipment, pretreatment and application of molding materials, etc., can solve the problems of utilization degree and unsatisfactory production products, and achieve the effect of smooth surface and uniform thickness

Inactive Publication Date: 2013-12-04
ZUNYI HAIFENG WOOD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the leftovers from original wood processing, small building blocks, slats, waste veneer, log cores and branches that are not lumber are discarded or burned , In recent years, various waste materials have been reused, but for the production of medium density fiberboards from these wastes, the degree of utilization and the production of products are not ideal.

Method used

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Experimental program
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Embodiment Construction

[0007] The specific method of this kind of medium density fiberboard production process is: it is divided into four sections, material preparation section - hot pressing, forming section - finished product preparation section - sanding section. Among them, unfinished branches, small building blocks, slats, waste veneers, log cores and wood processing residues are used for preparation. Hot pressing mainly adopts sizing and hot pressing technology. The sizing uses FM-1 urea-formaldehyde resin, the sizing concentration is 3-7%, and the temperature is controlled at 140-165°C. Its specific operation process is:

[0008] 1. The raw materials are transported to the drum chipper by the belt conveyor. The drum chipper cuts the raw materials into uniform wood chips, which is convenient for the transportation, storage and fiber separation of raw materials. After the raw material is chipped, it is sent by the belt conveyor to the drum-type wood chip sorter for wood chip screening, and un...

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Abstract

The invention relates to a process method for producing a medium density fiber board by utilizing waste wood. Used raw materials adopt worthless branches and residuums generated by wood processing, such as scantlings, battens, waste veneers and log cores; in the sizing process in the process of producing the fiber board, FM-1 urea resin is used; and the process flow for producing the fiber board comprises the steps of chipping the raw materials, screening, pulping, sizing, drying, paving, pre-pressing, carrying out hot pressing, cooling the board, trimming edges, sanding and forming. Due to adoption of the technical scheme, the waste wood raw materials can be sufficiently utilized and the high-quality medium density fiber board with uniform thickness and smooth surface is produced.

Description

Technical field [0001] The invention involves the technical field of resource comprehensive utilization, especially the process method of using density fiber boards in the production of waste wood production. Background technique [0002] Most of the surplus materials, small building blocks, bunches, waste veneers, logs of wood, and unparalleled branches of the original wood processing have been abandoned or burned. In recent years, various waste materials have been used.In the aspect of the density fiber board in waste production, the degree of utilization and production products are not ideal. Invention content [0003] The purpose of the present invention is to disclose a process method of using density fibers in the production of waste wood in the background technology. [0004] Use the process method of density fiber board in waste wood to produce density fiber boards, using raw materials to use unsmooth branches and wood processing surplus materials such as small wood, boa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/04B27N1/02
Inventor 余海
Owner ZUNYI HAIFENG WOOD CO LTD
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