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Oriented strand board production system and oriented strand board production method provided with flame retardant spraying structure

A technology of oriented particle board and production system, which is applied in the field of wood processing, can solve the problems of unsatisfactory flame retardant performance, high process complexity, high cost, etc., and achieve low water absorption thickness expansion rate and uniform distribution of flame retardants , good environmental performance

Active Publication Date: 2021-11-02
湖北宝源木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the flammability of ordinary oriented strand board, its application in many fields is limited
Although the existing oriented strand board usually improves the flame retardancy by adding flame retardants, the process is often very complicated, or the cost is high due to the use of expensive flame retardants, and the flame retardancy cannot meet higher safety requirements

Method used

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  • Oriented strand board production system and oriented strand board production method provided with flame retardant spraying structure
  • Oriented strand board production system and oriented strand board production method provided with flame retardant spraying structure
  • Oriented strand board production system and oriented strand board production method provided with flame retardant spraying structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] Such as figure 1The oriented strand board production system with flame retardant spraying structure shown includes: flaking device, wet flaking conveying device, wet flaking silo, drying device, dry flaking conveying device 1, screening device, dry shaving device Flake silo (including surface dry shaving silo and core layer dry shaving silo), dry shaving transfer device 2, glue mixing device (including surface dry shaving glue mixing device and core layer dry shaving glue mixing device) , paving device, hot pressing device, post-processing device after hot pressing and flame retardant spraying structure;

[0105] The flame retardant spraying structure is connected with the flaking device, the first dry flaking conveying device, the second dry flaking conveying device, the glue mixing device and / or the paving device. The post-processing device after the hot pressing includes a flame retardant spraying structure.

[0106] The first flame retardant spraying structure is ...

Embodiment 2

[0136] Planer specifications: width 5-40mm, thickness 0.4-0.8mm, length 100-180mm.

[0137] Adopt the oriented strand board production system of embodiment 1 to produce the method for flame-retardant oriented strand board, the method may further comprise the steps:

[0138] (1) With the rotation of the knife ring, the blade cuts the planer on the wood. At the same time, the flame retardant solution is evenly sprayed on the planer along the direction perpendicular to the blade edge. The spraying range of the flame retardant solution A can cover All flakes; the temperature of flame retardant solution A is 25±5°C;

[0139] (2) Step (1) After the shavings sprayed with flame retardant A are dried, before entering the dry shaving silo, spray flame retardant solution A on the falling dry shavings in the blanking channel and the blanking port ; After spraying the flame retardant, the shavings enter the dry shaving silo, and the dry shavings conveyed from the dry shavings silo enter t...

Embodiment 3

[0149] Embodiment 3 is the same as that of Embodiment 2, wherein the amount of fire retardant sprayed (i.e. the pump flow rate), the concentration of fire retardant, and the water content of the flakes before and after spraying the flame retardant, the amount of flame retardant attached, and each The test results of the flame retardancy of the shavings in the process are shown in Table 3.

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Abstract

The invention discloses an oriented particle board production system and a production method provided with a flame retardant spraying structure. The production system includes: flaking device, wet flaking conveying device, wet flaking silo, drying device, dry flaking conveying device 1, screening device, dry flaking silo, dry flaking conveying device 2, glue mixing device, paving device, hot pressing device and flame retardant spraying structure; the flame retardant spraying structure is connected with the flaking device, dry flaking conveying device 1 and / or dry flaking conveying device 2, glue mixing device, The paving device is connected. The present invention adopts multi-process spraying, the shavings absorb fully, and the flame retardant is evenly distributed. By spraying various flame retardant solutions while shaving, it can unexpectedly obtain excellent coverage of the flame retardant and further improve the flame retardant. Cooling of rings and blades. The flame-retardant oriented strand board obtained by the treatment has excellent flame-retardant performance; the physical properties are equivalent to those of the oriented strand board produced and pressed without adding a flame retardant.

Description

technical field [0001] The invention belongs to the field of wood processing, and relates to a machine for wood processing, in particular to an oriented particle board production system and an oriented particle board production method provided with a flame retardant spraying structure. Background technique [0002] Oriented strand board (OSB) is a kind of oriented structural board made of poplar, pine and other wood as raw materials, processed into shavings by special equipment, dried, glued, oriented paving, hot-pressed and other processes. The surface flakes are arranged vertically, and the core flakes are arranged horizontally. This criss-cross arrangement reorganizes the wood grain structure, completely eliminates the influence of wood internal stress on processing, and makes it have excellent processability and moisture resistance. OSB has a directional structure inside, no joints, no gaps, no cracks, good overall uniformity, and high internal bonding strength, so OSB ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/02B27N3/08
Inventor 范春涛朱显龙张学金陈超
Owner 湖北宝源木业有限公司
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