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Multi-section flame retardant adding type production system and method for improving flame retarding performance of directional shaving board

A production system and flame retardant technology, applied in the field of wood processing, can solve problems such as application limitations, flame retardant performance that cannot meet safety requirements, and high cost

Active Publication Date: 2019-05-21
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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  • Multi-section flame retardant adding type production system and method for improving flame retarding performance of directional shaving board
  • Multi-section flame retardant adding type production system and method for improving flame retarding performance of directional shaving board
  • Multi-section flame retardant adding type production system and method for improving flame retarding performance of directional shaving board

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] Such as figure 1 The production system for adding flame retardants to improve the flame retardancy of oriented strand board is shown in the multi-stage production system. The production system includes: flaking device, wet flaking conveying device 1, wet flaking silo, wet flaking conveying device 2, 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, post-processing device after hot pressing and flame retardant spraying structure ;

[0102]Flame retardant spraying structure 1 is connected with wet flaking conveying device 2, flame retardant spraying structure 2 is connected with dry flaking conveying device 1 and / or dry flaking conveying device 2, flame retardant spraying structure 3 is connected with glue mixing The devices are connected, and the flame retardant spraying structure 4 is connected with the paving device. The wet shaving conveying devi...

Embodiment 2

[0133] Planer specifications: width 5-40mm, thickness 0.4-0.8mm, length 100-180mm.

[0134] Adopt the production system of embodiment 1, promote the method for oriented strand board flame retardancy, this method comprises the steps:

[0135] (1) The shavings conveyed from the wet shaving silo, spray the flame retardant solution A on the wet shavings during the blanking process and the stirring process of the atomizing cylinder (the temperature of the flame retardant solution A is 25±5°C ), sent to dry;

[0136] (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 shaving silo enter the glue mixing process;

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

[0138] Feed rate a...

Embodiment 3

[0146] 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 multi-section flame retardant adding type production system and method for improving flame retarding performance of directional shaving board. The system comprises a wet shaving material bin, a second wet shaving sheet conveying device, a drying device, a first dry shaving sheet conveying device, a screening device, a dry shaving sheet bin, a second dry shaving sheet conveying device, a gum mixing device, a paving device, a thermal pressing device, a post-treatment device for acting after thermal pressing, and a flame retardant spraying structure, wherein the flame retardant spraying structure is connected to the second wet shaving sheet conveying device, the first dry shaving sheet conveying device and / or the second dry shaving sheet conveying device, the gum mixing device, the paving device and / or the thermal pressing device. According to the system and the method, multi-process spraying is carried out, so that shaving sheets can fully absorb; the flame retardant is uniformly distributed, and the problems that the flame retarding performance of a board is low or the flame retardant is excessively sprayed, the surface of shavings cannot absorb timely, and the flame retardant is lost, can be avoided; the processed flame retarding shaving board is outstanding in flame retarding performance; and the physical performance is equal to that of a shaving board produced by pressed without the 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 a production system and method for adding a flame retardant in multiple stages to improve the flame retardancy of an oriented strand 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, 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 has be...

Claims

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Application Information

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IPC IPC(8): B27N3/02B27N3/08B27N1/00B27N1/02B27K3/02
Inventor 范春涛朱显龙汪运庭曾勇
Owner 湖北宝源木业有限公司
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