High temperature resistant conveyor belt is generally used to transport materials in enterprises. It is generally made of rubber as the covering material and fiber fabric as the core (the core is generally made of polyester, nylon, polyester canvas, cotton, etc., which is layered or integral fabric). Earlier in the high temperature resistant conveyor belt fabric is cotton fiber, the advantage of the cotton fiber is easy with rubber cement, while wet tensile strength increased slightly, heat resistant conveyor belt is heat resistant conveyor belt is composed of multilayer rubber cotton canvas (twill) or polyester canvas has high temperature resistant and heat resistant rubber, up and down by the high temperature vulcanizing bonding together, Suitable for conveying hot coke, cement, slag and hot castings below 175℃! The disadvantage is that the anti-corrosion performance is poor, easy to moldy, low breaking strength of about 56 cattle can be broken by the tension, therefore, the use of cotton fiber conveyor belt is gradually reduced, replaced by polyester, nylon and other materials.
About the characteristics of high temperature resistant conveyor belt conveying material
The original nylon fiber as a core of the conveyor belt began to put into use. The strength of nylon fiber is as high as 700N/(mm. layer), the advantages are water resistance, high temperature resistance, corrosion resistance, fatigue resistance and so on; The disadvantage is that the elasticity is large and the elongation is long. Polyester fiber is a kind of raw material which is similar to nylon fiber, and its performance is similar to nylon fiber, but its elasticity is smaller than that of nylon fiber. When used, its elastic elongation is only half of that of nylon fiber, so it is more and more popular among people. The most commonly used varieties of rubber for heat-resistant conveyor belt covering are SBR, IIR and EPR. At present, SBR is the most commonly used, but it is only suitable for use under 12O ° C; The high temperature resistance of IIR is better than SBR, but the process performance is poor, the price is too high, so it is rarely used in China. EPR heat resistance and price are relatively moderate, suitable for the production of heat-resistant conveyor belt.
Application of high temperature resistant conveyor belt
Mainly used in metallurgy, construction and other industries, conveying sinter, coke, cement clinker and other high temperature materials, material temperature does not exceed 800℃, the belt surface temperature does not exceed 220℃ condition of use. Features: EPDM is used as the covering layer, and the skeleton material is made of high-temperature resistant canvas specially used in China. The unique formula design solves the key problems of high saturation, poor adhesion and low interlayer adhesion of EPDM. It has the characteristics of light belt body, long life (about 2-4 times) and good heat resistance. High temperature resistant conveyor belt is mainly used in metallurgical, chemical, cement, coking, steel and other industries conveying tasks. It is suitable for the environment with short conveying distance and small conveying capacity.