Ccoal-winning machine low-smoke low-halogen screening rubber cover flexible cable

Abstract

The invention relates to a coal mining machine low smoke and low halogen flexible shield rubber-sheathed cable, which comprises a rubber sheath mainly made of chloroprene polymer, and also comprises zinc oxide or magnesia, 2246 parts of acetaldoxime, protective agent, stearic acid, paraffin, chlorinated paraffin, HZR-2 type fire retardant, carbon white, fast yellow, and silane. The burnt rate of the cable of the invention is reduced greatly (only equivalent to burn about 20 percent of the original mine cable), the smoke quantity released by a burnt outer sheathed rubber and the HCL gas quantity are both low (about 10 percent), only being equivalent to about 20 percent of the smoke quantity of the original burnt mine cable, and 10 percent of the HCL gas quantity. The concentration of the smog HCL gas of the whole fire environmental space is lower, thereby the invention has the reliable guarantee to improve the security and the reliability of the coal mine cable, to decrease the harm extent of the fire, and to stop the accident caused by the cable.

Description

technical field [0001] The invention relates to a low-smoke and low-halogen shielded rubber-sheathed flexible cable, in particular to a low-smoke and low-halogen shielded rubber-sheathed flexible cable for coal mining machines. Background technique [0002] Flame-retardant cables that meet the experimental requirements of IEC332-3-1982 "Test method for vertical combustion type of bundled cables" release a large amount of smoke and toxic gases in fire practice. According to a large number of statistics, these smokes cause fire casualties. The number of people accounts for about 80% of the casualty rate of the entire fire, and the released hydrogen chloride will corrode buildings and machinery and equipment. People call it the "secondary disaster" of the fire, which has attracted great attention. For example, in the 80s of the last century, during the Battle of the British and Armagh Islands, more than 300 officers and soldiers of the British warship were shot and all of them ...

AI Technical Summary

Problems solved by technology

[0040] The purpose of the present invention is to provide a low-smoke and low-halogen shielded rubber-sheathed flexible cable for coal mining machines, so as to solve the current problems of generating a large amount of smoke and toxic gases when the cable is burned.