Supply PVG conveyor belt

Flame-retardant conveyor belt, the belt body does not delaminate, is impact-resistant, has low elongation and is tear-resistant. (Plastic surface) type (flame-retardant conveyor belt for coal mine conveyor belt) whole-core flame-retardant belt, implemented/standard.
Safety performance
The flame-retardant conveyor belt has passed flame-retardant testing and electrostatic testing, and has obtained the coal safety mark and customer approval.
Mechanical properties
The flame-retardant conveyor belt has excellent mechanical properties and can provide users with the longest service life and economical installation and use.
The longest service life The service life of the belt body is determined by the following factors. The dense belt core is woven from warp and weft filaments and covered with cotton, and is impregnated with a specially formulated material to make the connection between the belt core and the cover glue The specially formulated cover glue to achieve extremely high bonding strength makes the belt resistant to impact, tearing and abrasion.
The flame-retardant conveyor belt has the characteristics of a whole-core flame-retardant belt, wear resistance, anti-static, waterproof, flame-retardant strength, high safety performance, and lower cost and lower price than other flame-retardant conveyor belts. It is currently more common at home and abroad. One of the popular types of flame-retardant conveyor belts, it is particularly suitable for conveying places with small slopes such as coal mines.
Product structure The flame-retardant conveyor belt uses an integral belt core as the skeleton material, which is made by impregnating and coating materials with excellent anti-static and flame-retardant properties and then plasticizing.
Joint performance
Flame-retardant conveyor belts are connected using mechanical buckles according to the strength of the belt body and the belt core structure. The strength of the knots can reach the rated tensile strength of the belt body. The use of vulcanized joints, the knots of The strength can reach the rated tensile strength of the belt. Various forms of connectors can meet the different needs of customers and ensure safe and efficient operation of the system.
Flame retardant properties
The surface temperature of the roller friction roller is not greater than ℃.
The average flame time of the blowtorch for full-thickness specimens when burning with a blowtorch is not greater than the average time for removing the covering layer.
The lossless length of propane combustion is greater than.
The surface resistance value is not greater than the average value of the upper and lower surfaces.
Flame retardant principle
Natural rubber and styrene-butadiene rubber are flammable, and flame retardants must be added to achieve flame retardancy. The layered flame retardant conveyor belt adhesive flame retardant system adopts a combination of antimony trioxide, chlorinated paraffin, zinc borate and aluminum hydroxide. The function of antimony trioxide flame retardant is as follows. It has no flame retardant effect when used alone, but shows a strong flame retardant effect when used in combination with chlorine-containing compounds. During combustion, antimony trioxide reacts with chlorine-containing compounds on the surface of the combustible material to form volatile antimony chloride and antimony oxychloride. Their volatilization can absorb heat, and the gas produced can isolate oxygen and dilute combustibles. Chlorinated paraffin flame retardant. Chlorinated paraffin decomposes at high temperatures to produce chlorine atoms. The chlorine atoms react with polymers (rubber, nylon, canvas, etc.) to generate hydrogen chloride. Hydrogen chloride reacts with highly active hydroxyl radicals or hydrogen atoms to generate water or hydrogen, thus interrupting The chain oxidation process slows down or even stops combustion, and flame retardant requirements are achieved by adding flame retardants and carbon black.
Conveyor belt model and technical parameters
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_ Product execution standards
Selection safety factor (breaking strength*/)
Transportation inclination angle ℃
Standard model
Corresponding level
Tensile strength, /
Tensile elongation
Recommended minimum diameter of the transmission roller
Longitudinal
Lateral
Portrait
Horizontal

Level 4






Level 5
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Level 6




Level 7




Level 8



Safety performance
Performance name
Alcohol combustion
Propane combustion
Electrical conductivity
Roller friction
Standard value
Average value, single value (covered glue)


℃
Average Value, single value (no cap glue)
No sparks