In February 2021, our company shipped a 100-meter flame-retardant conveyor belt with a bandwidth of 1200mm to a coal mine in New Zealand for underground transportation of coal.

  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.

  Flame retardant conveyor belt is widely used in above mines and blow mines by enterprises. Its covered glue applied the rubber with high temperature resistance, good heat resistance. Through high temperature vulcanized that bonded together which has great heat absorption and barrier properties. Can well protect the interior and it is suitable for conveying hot coke, slag, hot castings, cement clinker and high temperature materials that could have good flame retardant, water proof and anti tear resistant effect. Flame retardant conveyor belt usually used for harsh environment, contact with high temperature materials for a long time which makes the covered glue of the conveyor belt easily aged and it is prone to caused belt delamination and deformation.

  Conveyor belt will get impact or worn by the materials to occur pit hole, scratches. Also, the flame retardant conveyor belt has a certain using temperature, if the surface temperature is too high, conveyor belt is not sufficiently cooled when returned, will appear cracks and pieces will fall off. If these problems are not deal with immediately will cause the conveyor belt to penetrate, fracture. For damage to conveyor belts usually use the flame retardant conveyor belt adhesive glue to repair and bonding.

  The characteristics of conveyor belt adhesive: it has self-extinguishing to flame combustion and good high temperature resistance, ageing resistance; the products has high performance ingredients, and has high bonding strength after repair and can strengthening the insulation effect of the repaired parts can effectively extend the service life of flame retardant conveyor belt; it is easy to be operated, fast curing speed, to be started after repairing to avoid looses caused by long time of maintenance.

  How to repair the conveyor belt: cleaning and grinding. Use an angle grinder with a tungsten steel grinding disc to grind the repaired area, then clean it with a brush and clean it with cleaning agent. Mixing and painting: After mixing the conveyor belt adhesive SK313 and the curing agent UT-R40 in proportion, apply the mixture evenly on the bonding surface. After the application is dry, apply the second layer and add CN the layer repair strip is also coated with a layer of compound.

  Bonding and curing: when the second layer glue is half dry, stick the Cn layer repair strip and finally use a roller to compact it. After curing for more than 4 hours, the machine can be turned on. If the conveyor belt is penetrated, a flame retardant rubber repair agent can be used to fill the hole before performing the above operations.

  When using flame retardant conveyor belts, the surface temperature must be measured. Recorded and monitored and materials, conveyor belts must be cooled in time to avoid damage caused by unnecessary temperature rise. When repairing conveyor belts, non flame retardant or unqualified repair materials can easily caused combustion when exposed to external fire sources. Only by choosing safe and flame retardant products can fire accidents be effectively prevented.