Section is attached longwall thick seams COAL WITH POSITIVE release

摘要

Section support frame stope powerful formation forced release of coal contains overlap pivotally connected with the fencing on one side thereof, a base pivotally connected with the fencing with his other hand, two gidrostoyki associated with the base and lapped hydrojacks advancing mounted on the base, an opening made in the fence, a barrier, is pivotally connected to the fence, equipped with hydraulic jacks control barrier and the gutter with boards installed in the enclosure opening on the bottom of the trough from the bottom hydrochloric side mounted plunger feeder configured as a rigid plate provided with a hydraulic drive.; A distinctive feature of the section lining is that on top of the ceiling fixed cleaver, made in the form of a wedge, their shear edges are oriented across the predominant direction of natural fractures in the coal array underlay or interlayer thickness.; Description 1 comprises NRM Formula 3 yl.