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System and process for producing flame-retardant oriented strand board

An oriented strand board and process technology, applied in the field of wood processing, can solve the problems of application limitation, flame retardant performance cannot meet safety, and high process complexity

Active Publication Date: 2019-05-14
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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  • System and process for producing flame-retardant oriented strand board
  • System and process for producing flame-retardant oriented strand board
  • System and process for producing flame-retardant oriented strand board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] Such as figure 1 The system for producing flame-retardant oriented strand board is shown. The particle board production system includes: shaving device, wet shaving conveying device 1, wet shaving silo, wet shaving conveying device 2, drying device, dry shaving 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;

[0116] The flame retardant spraying structure is connected with the second wet flaking conveying device, the first dry flaking conveying device and / or the second dry flaking conveying device, the glue mixing device and / or the paving device. The aftertreatment device after hot pressing includes a flame retardant spraying structure. The screening device includes surface layer dry flake screening device and core layer dry flake screening device. The dry flake bin is divided into surface dry ...

Embodiment 2

[0147] Planer specifications: width 5-40mm, thickness 0.4-0.8mm, length 100-180mm.

[0148] A method for producing flame-retardant oriented strand board by an oriented strand board production system, the method comprising the steps of:

[0149](1) For the shavings conveyed from the wet shaving silo, the wet shavings are broken up and / or extruded during the blanking process, and the wet shavings are sprayed with damping spray to the wet shavings while breaking up and / or extruding. Flame retardant solution A (the temperature of flame retardant solution A is 25±5°C), sent to dry;

[0150] (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 shavings enter the dry shaving silo, and the dry shavings conveyed from the dry shaving silo enter the glue mixing process;

[0151] The temp...

Embodiment 3

[0160] 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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PUM

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Abstract

The invention discloses a system and process for producing a flame-retardant oriented strand board. The system comprises a flaking device, a first wet flake conveying device, a wet flake bin, a secondwet flake conveying device, a drying device, a first dry flake conveying device, a screening device, dry flake bins (including the surface dry flake bin and the core dry flake bin), a second dry flake conveying device, glue mixing devices (including the surface dry flake glue mixing device and the core dry flake glue mixing device), a mat formation device, a hot-pressing device, and an after-treatment device and a flame retardant spraying structure used after hot-pressing. According to the system and process, a flame retardant is sprayed in multiple procedures to be sufficiently absorbed by flakes and is evenly distributed, and the flame-retardant oriented strand board obtained through the system and process has an excellent flame retardant property.

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 system and process for producing flame-retardant oriented particle boards. 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 been widely developed in recent years. [0003] However, due to ...

Claims

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Application Information

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IPC IPC(8): B27N3/02B27N3/08B27N3/16B27K3/02B27N1/00B27N1/02B27K3/52
Inventor 范春涛朱显龙郑钊邓晓妮
Owner 湖北宝源木业有限公司
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