Last October, our company shipped a 65-meter flame-retardant conveyor belt with a width of 800 mm to a coal mine in Papua New Guinea for coal transportation.

Flame-retardant conveyor belts, also known as whole-core flame-retardant conveyor belts, are made of an integral belt core that is impregnated with polyvinyl chloride impregnated paste and then plasticized or vulcanized. 

It has the characteristics of high strength, large transportation capacity, and balanced transportation. At the same time, this product It has good flame retardant, antistatic, impact resistance, wear resistance, corrosion resistance and other properties. This product is mainly suitable for underground transportation in coal mines, and can also be used for material transportation in the metallurgical and chemical industries.

The flame retardant conveyor belt is consisted of nylon filament and cotton fiber to form the whole core conveyor belt. It is made by adding rubber molding on the basic of the normal conveyor belt. This structure owing to add the rubber that highly improve the roughness of the conveyor belt, at the same time, the aspect of slip resistance, cold resistance, wear resistance have been improving significantly.

Due to the whole plastic belt body is vulcanized by adding the rubber surface that used for transporting the materials at the angle less than 20°, and it could be also used at the same angle in a watery and humid environment; belt body with good electrostatic conductive and flame retardant effects. It could meet the various need of MT-914, especially used for the materials transportation in flammable places such as underground mining.

Most of the belt body of flame retardant selected the high quality polyester filament with high strength, low elongation. The nylon filament with high transverse strength and moderate mold is used. The belt has the advantages of light belt body, impact resistance, tear resistance, high strength.

Styrene-butadiene rubber and the ordinary rubber are flammable, to achieve the flame retardancy must be added the flame retardants. The layered flame-retardant PVG conveyor belt uses antimony trioxide, chlorinated paraffin, zinc borate and aluminum hydroxide. If a single flame retardant is selected, the flame retardant effect is not ideal at all, but through a variety of retardants The combination of flame retardants can produce a strong flame retardant effect.

During the burning process, the flame retardant antimony trioxide can absorb heat through volatilization that producing the gas, isolated the oxygen and the combustibles. The flame retardant chlorinated paraffin can produce hydrogen chloride at high temperatures. , hydrogen or water will appear under the chemical reaction, thereby slowing down the combustion until it stops.