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

Environment-friendly and flame-retardant conveying belt with aramid fiber thread rope core and production technology thereof

A kind of aramid thread, environment-friendly technology, applied in the field of flame retardant conveyor belt in mines, can solve the problems affecting the popularization and use of aramid skeleton material, the length of a single roll of aramid canvas should not be too long, and the cost of products will increase, and the joint strength can be achieved. High retention rate, light weight and good dimensional stability

Active Publication Date: 2016-05-04
ANHUI OUNAI RUBBER & PLASTIC IND
View PDF8 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Restricted by the twisting, weaving and dipping equipment of aramid cords, the length of a single roll of diameter straight weft aramid canvas cannot be too long, and the waste of materials will increase the product cost and the price is too high, which seriously affects the aramid skeleton material promotional use 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
  • Environment-friendly and flame-retardant conveying belt with aramid fiber thread rope core and production technology thereof
  • Environment-friendly and flame-retardant conveying belt with aramid fiber thread rope core and production technology thereof
  • Environment-friendly and flame-retardant conveying belt with aramid fiber thread rope core and production technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] figure 1The shown environment-friendly aramid cord core flame retardant conveyor belt is composed of an aramid dipped cord skeleton layer 5, a tear-resistant buffer layer 6, an upper covering adhesive layer 3, a lower covering adhesive layer 4 and side glue A layer 1 is formed, and a tear-proof buffer layer 6 is provided on both sides of the aramid-impregnated wire rope skeleton layer 5 respectively. Between the aramid dipped cord skeleton layer 5 and the anti-tear buffer layer 6, between the anti-tear buffer layer 6 and the upper and lower cover adhesive layers and the side adhesive layer 1, pass flame-retardant adhesive glue (conveyor belt structure after molding The middle is the flame retardant adhesive layer 7) bonded and vulcanized to form a whole.

Embodiment 2

[0029] Originally used 1000mmST / S1000 Flame retardant steel wire rope belt, the safety factor of steel wire rope tape is 6-8 times. Use environmentally friendly flame-retardant aramid cord core flame-retardant conveyor belt instead. The safety factor of the aramid cord structure tape is 8 to 10 times. Considering the safety factor requirements, the breaking strength of the tape is designed to be 1300N / mm. Among them, the aramid dipped cord has a specification model of 1670dtex×4×5, a breaking strength of 4500N, a cord diameter of 2.3mm, and 300 pieces of 1000mm bandwidth. There is a gap of 0.46mm on both sides of the aramid cord for rubber coating. . The thickness of the upper and lower cover glue is the same as that of the steel cord tape, both are 6.0mm, and the buffer tear layer uses ordinary nylon 66 mesh cloth.

[0030] Flame retardant adhesive formula, by weight: 75 parts of natural rubber, 25 parts of butadiene rubber, 5 parts of zinc oxide, 2 parts of magnesium oxi...

Embodiment 3

[0043] Originally used 1000mmEP250×4(6+3) laminated flame-retardant tape, with a strength of 1000N / mm and a safety factor of 10-12 times. Use environmentally friendly flame-retardant aramid cord core flame-retardant conveyor belt instead, and the safety factor of aramid cord structural tape is 8 to 10 times. Considering that the strength loss of EP tape is 15% during the heat vulcanization process, which is much greater than 5% of aramid fiber The strength change, the breaking strength of the belt is designed to be 800N / mm. Among them, the aramid dipped cord has a specification model of 1670dtex×3×5, a breaking strength of 3500N, a cord diameter of 2.0mm, a cord unit weight of 300g / 100m, and a bandwidth of 1000mm using 300 pieces. The two sides of the aramid cord The gap is 0.6mm, and the weight of the cord consumed per meter of tape is 0.9kg. The thickness of the upper and lower cover rubber is the same as that of the laminated belt, and the buffer tear-proof layer uses ordi...

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

PropertyMeasurementUnit
Breaking strengthaaaaaaaaaa
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a flame-retardant conveying belt for mines, in particular to an environment-friendly and flame-retardant conveying belt with an aramid fiber thread rope core and a production technology thereof. The conveying belt is composed of an aramid fiber impregnation thread rope framework layer, anti-tearing buffering layers, an upper covering glue layer, a lower covering glue layer and side glue layers, wherein the anti-tearing buffering layers are arranged on the upper side and the lower side of the aramid fiber impregnation thread rope framework layer respectively, the aramid fiber impregnation thread rope framework layer and the anti-tearing buffering layers are bonded through flame-retardant bonding glue and are integrated after being vulcanized, and the anti-tearing buffering layers and the upper covering glue layer, the lower covering glue layer and the side glue layers are bonded through flame-retardant bonding glue and are integrated after being vulcanized; the aramid fiber impregnation thread rope framework layer is formed by re-twisting folded yarns formed by twisting para-aramid filaments for forming thread ropes, impregnating the thread ropes with glue and arranging the thread ropes according to certain distance and tensioning degree. The environment-friendly and flame-retardant conveying belt with the aramid fiber thread rope core is retardant to flames, resistant to static electricity and small in smoke density, meets the safety requirements of a flame-retardant environment, is small in smoke and toxicity in the flame combustion process and is friendly to the environment. The consumption of operating kinetic energy is small, the equipment investment is low, and the comprehensive performance is excellent.

Description

technical field [0001] The invention relates to a flame-retardant conveyor belt for mines, in particular to an environment-friendly flame-retardant conveyor belt with an aramid cord core and its production process, in particular to an aramid cord as a tensile layer. Flame retardant rubber is an environmentally friendly aramid cord core flame retardant conveyor belt with low smoke and low toxicity. Background technique [0002] Due to the specific application environment and conditions in underground coal mines and other applications, the conveyor belts used are required to have high requirements for flame retardant, antistatic and physical and mechanical properties. At present, the types of conveyor belts used in coal mines mainly include PVC / PVG fabric whole-core flame-retardant conveyor belts, fabric laminated flame-retardant conveyor belts and steel cord core flame-retardant conveyor belts. Each tape variety is limited by material and has inherent flaws. When the streng...

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): B65G15/34C09J107/00C09J109/00C09J11/04C09J11/06C09J123/08C09J11/08
CPCB65G15/34C09J11/04C09J11/06C09J11/08C09J107/00C09J109/00C09J123/0815C08L9/00C08K13/02C08L7/00
Inventor 操江胡世献徐纯洁
Owner ANHUI OUNAI RUBBER & PLASTIC IND
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