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Device and method for increasing hot-pressing speed of shaving board

A technology of particleboard and shavings, which is applied in the pretreatment of molding materials, wood processing equipment, manufacturing tools, etc., to achieve the effect of accelerating transmission, realizing rapid production of particleboard, and realizing rapid curing

Inactive Publication Date: 2018-01-09
SOUTHWEST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After searching the literature, there is no research on the technology of heat-treating the core layer of the slab to increase the temperature of the core layer of the slab to realize the rapid production of particleboard.

Method used

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  • Device and method for increasing hot-pressing speed of shaving board
  • Device and method for increasing hot-pressing speed of shaving board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029]A device for increasing the hot-pressing speed of particle boards, which includes a core layer shaving bin 1, the bottom of the core layer shaving bin 1 communicates with a hot air treatment device 2, and a paving roller 3 is arranged under the hot air treatment device 2 , a conveyor belt 4 is arranged below the paving roller 3, a slab 5 is arranged on the conveyor belt 4, a hot air pipeline 6 is arranged on the hot air treatment device 2, and a ring with hot air entering the inside of the hot air treatment device 2 is installed. The hot air recovery pipe 9 in the hole 7, under the action of negative pressure, the hot air recovery pipe 9 recycles the hot air through the hot air inlet hole 7. In the hot air recovery pipe 9, the hole spacing of the hot air inlet hole 7 is 10mm , the hole diameter is 5mm, the hot air recovery pipeline 9 communicates with the bottom end of the hot air treatment device 2 and the hot air source 8, the hot air recovery pipeline 9 is provided wit...

Embodiment 2

[0037] A device for increasing the hot-pressing speed of particle boards, which includes a core layer shaving bin 1, the bottom of the core layer shaving bin 1 communicates with a hot air treatment device 2, and a paving roller 3 is arranged under the hot air treatment device 2 , a conveyor belt 4 is arranged below the paving roller 3, a slab 5 is arranged on the conveyor belt 4, a hot air pipeline 6 is arranged on the hot air treatment device 2, and a ring with hot air entering the inside of the hot air treatment device 2 is installed. The hot air recovery pipe 9 in the hole 7, under the action of negative pressure, the hot air recovery pipe 9 recycles the hot air through the hot air inlet hole 7. In the hot air recovery pipe 9, the hole spacing of the hot air inlet hole 7 is 9mm , the hole diameter is 4mm, the hot air recovery pipeline 9 communicates with the bottom end of the hot air treatment device 2 and the hot air source 8, the hot air recovery pipeline 9 is provided wit...

Embodiment 3

[0045] A device for increasing the hot-pressing speed of particle boards, which includes a core layer shaving bin 1, the bottom of the core layer shaving bin 1 communicates with a hot air treatment device 2, and a paving roller 3 is arranged under the hot air treatment device 2 , a conveyor belt 4 is arranged below the paving roller 3, a slab 5 is arranged on the conveyor belt 4, a hot air pipeline 6 is arranged on the hot air treatment device 2, and a ring with hot air entering the inside of the hot air treatment device 2 is installed. The hot air recovery pipe 9 in the hole 7, under the action of negative pressure, the hot air recovery pipe 9 recycles the hot air through the hot air inlet hole 7. In the hot air recovery pipe 9, the hole spacing of the hot air inlet hole 7 is 9mm , the hole diameter is 4mm, the hot air recovery pipeline 9 communicates with the bottom end of the hot air treatment device 2 and the hot air source 8, the hot air recovery pipeline 9 is provided wit...

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Abstract

The invention discloses a device and method for increasing the hot-pressing speed of a shaving board. According to the method, a hot air treatment device is arranged between a core layer shaving siloand a laying roller before slab laying after completion of sizing of an artificial board, the internal hot air temperature ranges from 60 DEG C to 80 DEG C, and the time spent on passing through a hotair pipeline from top to bottom of shavings is about 3-5 seconds; and after thermal treatment, the temperature of the shavings is increased by 20-30 DEG C on the original basis and reaches 50-70 DEGC. By the adoption of the device and method for increasing the hot-pressing speed of the shaving board, the temperature difference between the slab surface layer and the core layer shavings is reducedremarkably, the fast transmission of the temperature in a slab is achieved, and a resin adhesive is quickly cured, so that the hot-pressing speed of the shaving board is increased, and the moisture content of the savings is controlled within 5-7%; and for the surface layer shavings, no treatment is conducted, and by means of the core layer shaving thermal treatment process, the existing hot-pressing speed of the shaving board is increased greatly and is increased to 10 s / mm from 13 s / mm.

Description

technical field [0001] The invention relates to a device and method for increasing the hot-pressing speed of particle boards, belonging to the technical field of wood-based board production. Background technique [0002] In the process of particleboard preparation, the selection of adhesive and the hot pressing of the board are very important. In addition to determining the quality of the board, it also affects the production efficiency, environmental protection performance and production energy consumption of the board preparation to a certain extent. The curing of adhesives for particleboard production requires hot pressing, and the hot pressing process determines the rate and quality of adhesive curing. Generally speaking, the curing of the adhesive needs to be completed under certain temperature, pressure and time conditions. Within a certain time range, the temperature is transferred from the hot-pressed backing plate to the surface layer and core layer of the slab in s...

Claims

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Application Information

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IPC IPC(8): B27N1/00
Inventor 周晓剑杜官本王辉曹明张俊雷洪
Owner SOUTHWEST FORESTRY UNIVERSITY
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