Drying method of silicon dioxide vacuum insulated panel

A technology of vacuum insulation panels and silicon dioxide, which is used in drying and heating to dry solid materials, dry solid materials, etc., can solve problems such as affecting the drying effect of products and unfavorable water loss, saving drying costs, The effect of shortening drying time and reducing costs

Inactive Publication Date: 2015-10-14
CHUZHOU YINXING NEW MATERIAL TECH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, microwave heating is carried out in a closed space, which is not conducive to the loss of water and affects the drying effect of the product.

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
  • Drying method of silicon dioxide vacuum insulated panel
  • Drying method of silicon dioxide vacuum insulated panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The drying method combined with microwave and hot air circulation drying tunnel is used to produce silicon dioxide vacuum insulation panels, which specifically includes the following steps:

[0025] (1) adopting powder processing technology to prepare massive silica powder core material with smooth surface and regular corners;

[0026] (2) Pack the block silica powder core material prepared in step (1) into the cut non-woven bag to form the silica core material, and weigh its weight (m1), then first Dry at 150°C for 15 minutes by microwave drying, then quickly transfer to a circulating heating oven heated to 130°C for 15 minutes, take it out and weigh it (m2);

[0027] (3) For the dried silicon dioxide core material, prepare a silicon dioxide vacuum insulation board by packaging and vacuumizing, and test the thermal conductivity.

[0028] The influence of three different drying methods (circulation heating method, microwave drying method, microwave + circulation heatin...

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 drying method of a silicon dioxide vacuum insulated panel and relates to the technical field of production of the silicon dioxide vacuum insulated panel. A novel drying method of combining microwaves with heated air circulation drying channel is adopted. The drying method specifically comprises the following steps that a massive silicon dioxide powder core material with a smooth surface and regular corners is prepared by the adoption of a powder processing technology; the prepared massive silicon dioxide powder core material is loaded into a cut non-woven bag, a silicon dioxide core material is formed, heating processing is conducted, and the heating processing mode comprises the steps that drying is conducted by use of the microwaves for 10-30 min at the temperature ranging from 120 DEG C to 180 DEG C, and then the silicon dioxide core material is rapidly transferred to the circulation heating channel already heated to the temperature ranging from 100 DEG C to 160 DEG C to continue drying for 5-35 min; the silicon dioxide vacuum insulated panel is prepared through packaging and vacuum-pumping for the dried silicon dioxide core material, and the heat-conducting property is tested. By means of the drying method of the silicon dioxide vacuum insulated panel, the dewatering rate reaches 0-5%, and the heat conductivity coefficient can reach 0.004-0.008 w/mk to the minimum; the microwave drying is introduced, rapid heating can be conducted on the silicon dioxide core material, the drying time is greatly shortened, and the drying efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of production of silicon dioxide vacuum heat insulation panels, in particular to a drying method for silicon dioxide vacuum heat insulation panels. Background technique [0002] Vacuum insulation panels (VIP) have attracted extensive attention due to their low thermal conductivity, high temperature resistance, environmental protection and energy saving. As we all know, the porous structure of fumed silica, high specific surface area, and the ability to self-adsorb the gas inside the product have made it the preferred material for VIP core materials. Vacuum insulation panels (VIP-FS) with fumed silica as the core material are mainly produced by core material mixing, compression molding, pre-assembly, drying, vacuuming and other processes, among which drying has a negative impact on the performance and cost of the product. Significant influence. Studies have shown that with the increase of moisture in the co...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F26B3/347F26B3/02
Inventor 黄奉康夏玉明王堂瑜吴乐于
Owner CHUZHOU YINXING NEW MATERIAL TECH CO LTD
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