Study on key technologies of automatic fully-mechanized top-coal caving face with large mining height

The paper introduced key technologies of automatic fully-mechanized top-coal caving face with large mining height, including automatic control of hydraulic support, machinery-tracked automation, automation of coal caving, remote control, lighting and low illumination camera. It analyzed adaptability of automatic fully-mechanized top-coal caving with large mining height under condition of specific coal seam, considered the automatic fully-mechanized top-coal caving face with large mining height can realize not only parallel operation of mining and caving, but also 15 Mt coal produced in a year. It also introduced problems existed in the automatic fully-mechanized top-coal caving with large mining height, and pointed out the automatic fully-mechanized top-coal caving face with large mining height in future would develop in direction of high reliability, intelligentization and less human intervention.