Auger drilling machine unmanned face mining technology

Shandong Xinwen Mining Group Company introduced from abroad auger mining coal new technology, to fill the domestic coal mining technology gap has opened up a new way of domestic thin coal seams and thin seam mining. From the first two batches of equipment introduced in the two mines, the equipment is operating normally and the economic benefits are obvious.

The coal mining process achieves unmanned mining. Workers can operate coal-electric equipment at locations other than the working face to complete the processes of coal breaking, coal loading, and coal transportation, freeing workers from heavy physical labor and harsh thin coal mining environments. The process also allows the extraction of very thin coal seams that are difficult to mine or that are impossible to mine, improving resource utilization and mine service life.

The rig uses a local ventilator to supply air to the head, dust-proof pipes and spray nozzles to the head, using a non-sparking drill bit, installing a gas-breaking sensor in the head-drill pipe, and setting up external spray and other safety measures at the opening of the hole to avoid gas. Coal dust explosion. From the application situation of the first equipment, the unit has a width of 2.1m, a depth of up to 85m, a coal seam thickness of 1m, a coal pillar width of 0.7m between the drilling and mining holes, and a recovery rate of 90% of the raw coal. The whole coal mining process is calculated. The recovery rate is 67.5%, which is about 17% higher than the ordinary mining process.

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