Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Volatile organic compound (VOC) collecting system and method used in wood heat treatment process

A technology of wood heat treatment and collection system, which is applied in the field of VOC collection system in the wood heat treatment process to achieve the effect of moderate price

Active Publication Date: 2016-12-07
BEIJING FORESTRY UNIVERSITY
View PDF5 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a collection system and method for wood VOC in the high-temperature heat treatment process in view of the technical problems existing in the VOC collection process of the existing wood heat treatment process

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
  • Volatile organic compound (VOC) collecting system and method used in wood heat treatment process
  • Volatile organic compound (VOC) collecting system and method used in wood heat treatment process
  • Volatile organic compound (VOC) collecting system and method used in wood heat treatment process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0140] Embodiment 1 measures the moisture content of the sylvestris sylvestris specimen to be heat-treated

[0141] 1. According to the sampling national standard (GT28281-2003), extract 4 specimens from the specimens of Pinus sylvestris sylvestris with a size of 25cm (length) × 10cm (width) × 1cm (thickness). Take a 3-4cm test piece from the end of the test piece along the length direction, and use it to measure the moisture content of the wood (called the moisture content test piece);

[0142] 2. Weigh the initial weight of the moisture content test piece respectively, then put the moisture content test piece into the oven, and dry it at 103°C until it is absolutely dry, weigh the absolute dry weight of the moisture content test piece after cooling, and measure its average water content Rate: 9.28%.

[0143] In the present invention, except for 9.28% moisture content of wood, wood with moisture content between 8-12% is applicable.

Embodiment 2

[0145] 1) Determination of the initial weight of the wood to be heat-treated

[0146] Randomly select 3 specimens of Pinus sylvestris sylvestris with a size of 25cm (length) × 10cm (width) × 1cm (thickness) for high-temperature heat treatment, weigh the initial weights of the three specimens, and calculate their average initial weight to be 167.73g;

[0147] In addition to 3 pieces of wood as an example, other numbers such as 1 to 10 pieces are also suitable for the present invention, and the number of wood is preferably 2 to 5 pieces.

[0148] 2) Wood heat treatment and VOC collection

[0149] 2-1) Open the closed door of the high-temperature heat treatment chamber (not marked in the drawings), and place the weighed wood to be heat-treated on the bracket (such as figure 1 ), put an appropriate amount of water in the water tanks respectively arranged on both sides of the bottom of the heat treatment chamber and on both sides of the heater, and the amount of water is controlle...

Embodiment 3

[0172] Except that in step 1), 5 pieces of sylvestris sylvestris were selected as heat treatment specimens, and the average initial weight of the wood was 163.56g; in step 2) the heat preservation and heat treatment time in the wood heat treatment process was set as 2h; in step 4) the average dry weight of the heat treated wood was 147.98g Except that, the rest are the same as in Example 1; GC-MS detection results are shown in Table 1 to Table 7; VOC release is 1.13%.

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 discloses a volatile organic compound (VOC) collecting system used in the wood heat treatment process and a collecting method utilizing the VOC collecting system. The VOC collecting system comprises a heat treatment device, a gas condensation device, a gas drying device, a VOC absorption device, a gas circulation device and a deoxygenation device which are sequentially connected through connecting pipelines. The VOC absorption device is composed of a VOC liquid phase absorption device and a VOC solid phase absorption device which are connected in series and used for absorbing VOC released in the heat treatment process. The VOC released by wood heat treatment is cooled and dried and then enters the VOC absorption device. After the VOC is collected, residual gas returns to a wood high-temperature heat treatment device through the deoxygenation device, and circulation is conducted until the VOC is completely absorbed. The VOC collecting system is simple, the collecting method enables operation to be convenient, process conditions are easy to control in the collecting process, and the collecting system and method are suitable for collecting released VOC of various types of wood under different heat treatment conditions.

Description

technical field [0001] The invention relates to a VOC (volatile organic compound) collection system and collection method, in particular to a VOC collection system and collection method during wood heat treatment, and belongs to the technical field of wood processing and energy saving and emission reduction. Background technique [0002] High-temperature heat treatment is the functional modification of wood in a physical way in a high-temperature environment to improve the dimensional stability of wood. Compared with the chemical impregnation modification, which has been criticized for its toxicity, this technology is more in line with people's requirements for green products. It has been widely used in many fields such as construction, furniture, interior and exterior decoration, packaging, etc., and has been It has gradually become a research hotspot and development direction for functional improvement of wood at home and abroad. However, although the wood heat treatment ...

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): B27K5/00B01D5/00B01D53/26B01D53/28B01D53/14B01D53/18B01D53/04B01D53/74B01D53/46
CPCY02A50/20
Inventor 赵紫剑马青何正斌吕欢关健伊松林
Owner BEIJING FORESTRY UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com