Wood high-heat treatment device and technological process thereof

A high-temperature heat treatment and wood technology, applied in wood treatment, wood treatment details, wood processing equipment, etc., can solve the problems of low energy utilization rate, harm to human health, pollution of the atmospheric environment, etc., to reduce equipment investment and operating costs, Improved safety and sufficient combustion effects

Inactive Publication Date: 2009-07-29
NANJING FORESTRY UNIV
View PDF0 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the vast majority of wood companies, the heat-conducting oil furnace usually uses wood processing residues as fuel, so that the heat generated by the combustion of wood processing residues is first transferred to the heat-conducting oil by the heat-conducting oil furnace, and then transferred by the heat-conducting oil For the heat treatment medium inside the heat treatment equipment, the energy utilization rate of

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wood high-heat treatment device and technological process thereof
  • Wood high-heat treatment device and technological process thereof
  • Wood high-heat treatment device and technological process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1 Tree species: Chinese fir; Thickness: 20mm; Maximum heat treatment temperature: 220°C

[0020] 1) Stacking: Palletize fir boards correctly on the carrying trolley, then push the carrying trolley into the body of the high-temperature heat treatment equipment, and close the chamber door;

[0021] 2) Ignition: Send the wood processing residues into the combustion area from the feeding port at the upper end of the furnace body, and ignite them through the furnace door, then start the induced draft fan, and control the oxygen intake and fuel combustion state by adjusting the induced draft fan speed.

[0022] 3) Process control: start the heating fan to heat the wood to be treated in the body. During the heat treatment process, the process state required by the heat treatment is controlled by adjusting the opening of the heating fan and the humidification (water) device. The end temperature of the heat treatment is controlled between 220°C and the heat treatment hol...

Embodiment 2

[0025] Example 2 Tree species: Masson pine; Thickness: 30mm; Maximum heat treatment temperature: 200°C

[0026] 1) Stacking: Correctly stack the masson pine boards on the carrying trolley, then push the carrying trolley into the body of the high-temperature heat treatment equipment, and close the chamber door;

[0027] 2) Ignition: Send the wood processing residues into the combustion area from the feeding port at the upper end of the furnace body, and ignite them through the furnace door, then start the induced draft fan, and control the oxygen intake and fuel combustion state by adjusting the induced draft fan speed.

[0028] 3) Process control: start the heating fan to heat the wood to be treated in the body. During the heat treatment process, the process state required by the heat treatment is regulated by adjusting the opening of the heating fan and the humidification (water) device. The end temperature of the heat treatment is controlled within 200°C, and the heat treatm...

Embodiment 3

[0031] Example 3 Tree species: Mandshurica mandshurica; Thickness: 25mm; Maximum heat treatment temperature: 190°C

[0032] 1) Stacking: Correctly stack the Mandshurica mandshurica plates on the carrying trolley, then push the carrying trolley into the body of the high-temperature heat treatment equipment, and close the chamber door;

[0033] 2) Ignition: Send the wood processing residues into the combustion area from the feeding port at the upper end of the furnace body, and ignite them through the furnace door, then start the induced draft fan, and control the oxygen intake and fuel combustion state by adjusting the induced draft fan speed.

[0034] 3) Process control: start the heating fan to heat the wood to be treated in the body. During the heat treatment process, the process state required by the heat treatment is controlled by adjusting the opening of the heating fan and the humidification (water) device. The end temperature of the heat treatment is controlled between ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a device and a technical method for the high-temperature thermal treatment of timber. The device adopts a structure that: the air outlet of a reverse combustion-type combustion-heat exchange integral hot blast stove is communicated with the air inlet of a gas ejector pipe, the air outlet of the gas ejector pipe is communicated with the air inlet pipe of a return pipe through a log pile in a logging truck, the air outlet pipe of the return pipe is connected with one end of a heat supply fan through a humidifying device, the other end of the heat supply fan is connected with the air inlet of the reverse combustion-type combustion-heat exchange integral hot blast stove, and the smoke outlet of the reverse combustion-type combustion-heat exchange integral hot blast stove is connected with an induced draft fan; and a machine body of the high temperature thermal treatment device is provided with a machine body heat-preservation layer, and the top of the reverse combustion-type combustion-heat exchange integral hot blast stove is provided with a charging hole. The technical method comprises the steps of piling, ignition, process control, conditioning treatment, temperature reduction and discharge and the like. The device and the method have that advantages that: residues of timber processing are used as fuel, the heat exchange of a thermal treatment cyclic medium is carried out through the reverse combustion-type combustion-heat exchange integral hot blast stove at a time, the thermal efficiency is high, the combustion is complete and no pollution is produced.

Description

technical field [0001] The invention relates to high-temperature heat treatment equipment and a process method for wood, belonging to the technical field of wood processing. Background technique [0002] At present, the conventional wood high-temperature heat treatment process is to place the wood under the protection of water vapor at a heat treatment temperature of 180°C to 220°C. For such a high heat treatment temperature, using saturated water vapor under high pressure as a heat medium is not realistic. Therefore, industrial wood high-temperature heat treatment equipment usually uses heat transfer oil (oil temperature is usually greater than 240°C) as the heating medium. In this way, in terms of equipment investment, in addition to the investment in the heat treatment equipment itself, it is also necessary to increase the heat transfer oil heating. Investment in ancillary equipment such as systems, steam boilers or steam generators. In some cases, the total investment ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B27K5/00B27K1/00
Inventor 张齐生蒋身学伊松林
Owner NANJING FORESTRY UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap