"Development and performance of flame retardant conveyor belt with steel mesh core for coal mine"

Abstract

In view of main shortcomings of common conveyor belt used in coal mine, a new type of flame retardant conveyor belt with steel mesh core was developed, and the longitudinal tensile strength, bond strength, surface resistance and flame retardant properties of the conveyor belt were studied. The results showed that the average longitudinal tensile strength of the flame retardant conveyor belt with steel mesh core was 1 214 N/mm, the average adhesive strength of working face of the conveyor belt was 13.5 kN/m, and the average adhesive strength of non-working face was 11.4 kN/m. The average surface resistance of working face of the conveyor belt was 3.3×106 Ω, and the average surface resistance of non-working face was 4.8×106 Ω. The average glowiag time and leach-resitant of the conveyor belt with complete cover were not more than 3.0 s, and the average glowiag time and leach-resistant of the conveyor belt without cover were not more than 5.0 s. The indicators of the developed conveyor belt met the relevant provisions of the current major industry standards.

Keywords

• conveyor belt， steel mesh core， longitudinal tensile strength， bond strength， surface resistivity， flame retardant property，