Spray evaporation cooling hot press, and single-sided compressed wooden plate and production method thereof

A technology of wooden boards and hot-pressed boards, which is applied in the direction of wood compression, etc., can solve the problems of unutilized inner surface hardness, long natural cooling time of slabs, and reduced wood utilization, so as to prevent "exploding boards" and cracking , Improve productivity and save wood

Active Publication Date: 2012-04-25
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, its existing problem is: 1, the time of natural cooling of slab is longer, and production efficiency is low
For another example, for the boards used to make furniture, it is generally only necessary to have high hardness on the outer surface and good

Method used

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  • Spray evaporation cooling hot press, and single-sided compressed wooden plate and production method thereof
  • Spray evaporation cooling hot press, and single-sided compressed wooden plate and production method thereof
  • Spray evaporation cooling hot press, and single-sided compressed wooden plate and production method thereof

Examples

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Example Embodiment

[0029] See Figure 1-2 The steam-jet cooling hot press shown includes two hot press plates opposite to each other, namely, the lower hot press plate 1 and the upper hot press plate 2. The bottom of the lower hot press plate and the driving lower hot press plate are opposite to the upper hot press plate. The moving cylinder 3 is connected. A plurality of parallel steam channels 4, hot oil channels 5, and cooling channels 6 are provided in the lower hot pressing plate 1. The hot pressing surface 11 of the lower hot pressing plate 1 is provided with a plurality of steam outlet holes 41 communicating with the steam passage; there are multiple rows of steam outlet holes, and the diameter of each steam outlet is less than 1 mm; the steam passage communicates with the steam source. The hot oil passage 5 is in communication with a hot oil source, and the cooling passage is in communication with a cooling water source. A cooling channel 7 communicating with a cooling water source is a...

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PUM

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Abstract

The invention provides a spray evaporation cooling hot press which can shorten cooling time, improve productivity and effectively prevent a plate from being cracked and is used for producing a single-sided compressed wooden plate. The spray evaporation cooling hot press comprises upper and lower hot pressing plates, wherein a steam channel, a steam outlet communicated with the steam channel, a heating device and a cooling channel are formed in the lower hot pressing plate. The invention also provides the single-sided compressed wooden plate which can be more practical and by which the utilization rate of wood is improved, and a production method thereof. The production method comprises the following steps of: putting a plate blank between the two hot pressing plates, heating the lower hot pressing plate to a certain temperature, moving the lower hot pressing plate relative to the upper hot pressing plate to press the plate blank, spraying steam with 5 to 8 atmospheric pressures into the steam channel for 5 to 10 seconds, stopping heating the lower hot pressing plate when the compression ratio of the plate blank meets the requirement, introducing a cooling medium into the cooling channel, cooling the lower hot pressing plate, and releasing pressure.

Description

technical field [0001] The technology relates to a steam spray hot press, a single-side compressed wooden board produced by the steam spray hot press and a production method of the single-side compressed wooden board. Background technique [0002] The steam spray hot press is used for the production of wooden boards. It generally includes two hot pressing plates facing each other up and down, that is, the upper hot pressing plate and the lower hot pressing plate. The oil cylinder that moves up and down on the plate is provided with a steam channel in the two hot-pressing plates, and a steam outlet hole communicated with the steam channel is opened on the hot-pressing surface of the two hot-pressing plates; the steam channel communicates with the steam source ; A heating device (such as an electric heating device or an oil heating device) is arranged on the two hot pressing plates. [0003] When using the steam jet hot press to produce wooden boards, put the assembled slab b...

Claims

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Application Information

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IPC IPC(8): B27M1/02
Inventor 蔡家斌
Owner NANJING FORESTRY UNIV
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