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Flame-retardant oriented-structure strand board improved production device and technology

A technology of flakes and flame retardants, applied in the direction of manufacturing tools, wood processing appliances, pretreatment of molding materials, etc., can solve the problems of high process complexity, high cost, application limitations, etc.

Active Publication Date: 2019-05-31
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 requirements. security requirements

Method used

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  • Flame-retardant oriented-structure strand board improved production device and technology
  • Flame-retardant oriented-structure strand board improved production device and technology
  • Flame-retardant oriented-structure strand board improved production device and technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] Such as figure 1 The oriented strand board production system shown is equipped with a flame retardant spraying structure. The oriented strand board production system includes: a flaking device, a wet flaking conveying device, a wet flaking silo, a drying device, a dry flaking first Conveying device, screening device, dry flaking silo, dry flaking second conveying device, glue mixing device, paving device, hot pressing device and flame retardant spraying structure;

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

[0106] The first flame retardant spraying structure is connected with the wet flaking conveying device, the second flame retardant spraying structure is connected with the first dry flaking ...

Embodiment 2

[0134]Planer specifications: width 5-40mm, thickness 0.4-0.8mm, length 100-180mm.

[0135] The method of using the system of embodiment 1 to produce flame retardant oriented strand board, the method may further comprise the steps:

[0136] (1) The wet shavings enter the blanking channel, and in the blanking channel, spray the flame retardant solution A to it from the top and surroundings of the blanking channel while breaking up the wet shavings;

[0137] The temperature of flame retardant solution A is 25±5°C;

[0138] Dispersion speed is 20-30r / min;

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

[0140] The temperature of flame re...

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 a flame-retardant oriented-structure strand board improved production device and technology. An oriented strand board production system comprises a wet strand board conveying device, a wet strand board stock bin, a drying device, a dry strand board first conveying device, a screening device, a dry strand board stock bin, a dry strand board second conveying device, a glue blending device, a spreading device, a hot pressing device and a flame retardant spraying structure; and the flame retardant spraying structure is connected with the wet strand board conveying device, the dry strand board first conveying device, the dry strand board second conveying device, the glue blending device and the spreading device. According to the flame-retardant oriented-structure strandboard improved production device and technology, multi-procedure spraying is adopted, strand boards can sufficiently absorb a flame retardant, the flame retardant is uniformly distributed, the situation that the spraying quantity of the flame retardant during a single procedure does not reach the standard, thus, the flame retarding performance of the boards are unqualified, or the spraying quantity of the flame retardant is too large, the surfaces of the strand boards cannot absorb the flame retardant in time, and the flame retardant runs off and is wasted is avoided. The flame-retardant oriented strand boards obtained through processing are good in flame retarding performance, and equivalent to oriented strand boards produced and pressed without adding the flame retardant in physical performance.

Description

technical field [0001] The invention belongs to the field of OSB wood processing, and relates to a machine for wood processing, in particular to an improved production device and process of a flame-retardant oriented structure planer board. Background technique [0002] Oriented strand board (OSB) is a kind of oriented structural board made of poplar, pine and other wood as raw materials, which are processed into flakes 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 has been widely developed in recent ye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/02B27N3/10B27N3/14B27N3/16B27N3/18B27N1/00B27K3/02B27K3/12B27K3/52B27K3/50
Inventor 范春涛朱显龙郑少明金安成
Owner 湖北宝源木业有限公司
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