The width of the conveyor belt is mainly determined by the maximum block size of the material and the conveying capacity. Generally speaking, the belt width should be greater than 3 times the maximum block size of the material. For screened materials, the belt width should be greater than 2 times the maximum block size of the material. At the same time, the actual conveying capacity should be considered to ensure it is between 70%-90% of the theoretical conveying capacity to ensure the normal operation and service life of the conveyor belt.

Common causes of conveyor belt deviation include: incorrect installation of idler sets, non-straight belt joints, non-perpendicularity between roller centerline and belt centerline, and quality issues with the belt itself. Solutions include: adjusting the position of idler sets, re-calibrating belt joints, adjusting roller positions, and installing self-aligning idlers. In daily use, regular inspection and maintenance are important measures to prevent belt deviation.

Methods to extend the service life of conveyor belts include: selecting the appropriate belt type and specifications, correct installation and commissioning, keeping the belt clean, regular inspection and maintenance, avoiding overloading, timely adjustment of deviation, installing appropriate cleaning devices, controlling material temperature within the allowable range, etc. In addition, choosing reliable belt products and professional installation and commissioning services are also important factors in extending service life.

There are three main methods of conveyor belt jointing: mechanical jointing, vulcanized jointing, and cold bonding. Mechanical jointing is simple to operate and can be completed quickly on-site, but has low joint strength (about 35%-55%) and high operating noise, suitable for temporary use or low-strength requirements. Vulcanized jointing has high joint strength (up to 90% or more) and stable operation, but requires professional equipment and personnel, takes a long time, suitable for fixed equipment with high strength and long service life requirements. Cold bonding does not require large equipment, has relatively high joint strength (about 70%-85%), but is greatly affected by environmental temperature and has a long curing time, suitable for on-site maintenance of small and medium-sized conveyors.

In high-temperature environments, heat-resistant conveyor belts should be selected. Depending on the temperature range, different materials of heat-resistant conveyor belts can be chosen: for temperatures between 80℃-150℃, heat-resistant conveyor belts made of ethylene-propylene rubber can be selected; for temperatures between 150℃-200℃, high-temperature resistant conveyor belts made of silicone can be selected; for temperatures exceeding 200℃, conveyor belts made of Teflon (PTFE) are recommended, which can work in high-temperature environments of 260℃ for a long time. At the same time, other characteristics of the materials need to be considered, such as whether they are corrosive and whether food-grade requirements are needed.