Mining control cable

Abstract

The invention discloses a mining control cable, which comprises an insulating cable core, an inner sheath layer and an outer sheath layer, wherein the insulating cable core is formed by a single stranded conductor or a plurality of stranded conductors with extruded insulating layers; PP (propene polymer) rope filler is laid in a gap between the insulating cable core and a shielding layer in parallel; the inner side of the outer sheath layer is also provided with an armor layer. The mining control cable disclosed by the invention is novel in structure, and has a good shielding electric field and excellent properties of compression strength, tensile strength, fire resistance, water resistance, corrosion resistance, ageing resistance and the like.

Description

technical field [0001] The invention relates to the field of cables, in particular to a mine control cable. Background technique [0002] Since the European Industrial Revolution in the 18th century, coal has always been an important energy source in the world. 70% of my country's power resources also come from coal combustion. In order to ensure a continuous supply of raw coal, coal mining systems, transportation systems, ventilation systems, and drainage systems The quality of mine cables is very important for the normal operation of mine cables. The environment for laying mine cables is harsh, the geological structure is complex, and they often need to be pulled and moved. Due to poor tensile and pressure resistance, the insulating layer is easily damaged or even broken. , unable to meet the normal power supply needs of the mine, and secondly, the shielding performance of ordinary cables is poor. When the cable is energized, an electromagnetic field will be generated to for...

AI Technical Summary

Problems solved by technology

[0002] Since the European Industrial Revolution in the 18th century, coal has always been an important energy source in the world. 70% of my country's power resources also come from coal combustion. In order to ensure a continuous supply of raw coal, coal mining systems, transportation systems, ventilation systems, and drainage systems The quality of mine cables is very important for the normal operation of mine cables. The environment for laying mine cables is harsh, the geological structure is complex, and they often need to be pulled and moved. Due to poor tensile and pressure resistance, the insulating layer is easily damaged or even broken. , unable to meet the normal power supply needs of the mine, and secondly, the shielding performance of ordinary cables is poor. When the cables are energized, an electromagnetic field will be generated to form static electricity around them. In case of high concentration gas, vicious explosion accidents will often occur

Images