What are the options for the selection of rubber conveyor belts?
1. The shape and structure of the rubber conveyor belt: different types of conveying methods, such as flat shape, trough shape, large dip angle, bending and turning conveying, box shape, tubular shape, closed conveying, and lifting conveying, etc. The conveying mode is determined by the conveying capacity of the conveyor belt and will be limited by the terrain and environmental conditions. It is the premise of determining the material, structure, safety factor and the required belt length of the heavy rubber belt.
2. Conveyor belt core material and structure selection: The performance of the conveyor belt has a great relationship with the core material, structure and number of layers. The cotton canvas multi-layer transportation tape has low strength, many layers, is not resistant to fatigue, and is prone to corrosion. High weight, high energy consumption, high strength of nylon conveyor belt, high elasticity, light weight, good impact resistance and bending resistance, good groove forming performance, mildew resistance, water resistance and other properties are better than cotton canvas as the skeleton The disadvantage of the conveyor belt is that the elongation is large. When the tensioning stroke can be set longer, the nylon rubber belt is preferred. The strength of the polyester belt is similar to that of the cotton fiber, and has all the advantages of the nylon tape, and the elastic modulus is higher than that of the nylon. The elongation is small and the dimensional stability is good. It is an ideal transportation belt commonly used in industry. The steel cord conveyor belt has high strength, good groove formation, small elongation and short tensioning stroke, which is especially suitable for mass transportation. , high belt speed, long distance conveying requirements
3. Selection of cover layer: The choice of cover layer includes cover material, surface shape and thickness. The main components of the cover layer are various rubber and plastic. Under most climatic conditions, the rubber band can be under the condition that the inclination angle is not more than the flat angle. Normal work, and the inclination of the normal operation of the flame-retardant conveyor belt is below 120 degrees. Although the main frame material is not as good as the rubber, it has good flame retardancy, unloading and cleaning properties. Because the performance of various rubbers is also very different, such as natural rubber, styrene-butadiene rubber has good energy absorption and wear resistance, ethylene-propylene rubber is particularly heat-resistant, butadiene rubber has good oil resistance, and butyl butyl rubber is heat-resistant. It is also resistant to oxidizing chemistry, so the type of cover material to be selected must be comprehensively considered based on the type of commonly used materials, operating conditions and working environment.
4. The increase of the thickness of the additional cover layer is also beneficial to improve the impact resistance and wear resistance of the rubber conveyor belt. Especially, the cotton canvas belt core has been replaced by the core of the synthetic fiber fabric, and the performance of the core has been greatly improved, while the thickness is relatively Thinning, in order to improve the overall performance of the belt, it is necessary to increase the thickness of the cover layer to fully exert its advantages and improve the service life of the conveyor belt, but the excessive thickness of the lower cover layer will make the running resistance of the heavy-duty heat-resistant conveyor belt If you get bigger, you need to pay attention to it; the running resistance of the heat-resistant conveyor belt becomes large, so you need to pay attention to it.