SU95492A1 - Development system of high-grade steeply dipping seams with horizontal layers - Google Patents

Description

Systems for developing steeply dipping coal seams with horizontal layers are known in descending order.

According to the invention, in the proposed system of this type, the working faces are not located across the formation strike, as usual, but diagonally, which extends the line of cleaning faces.

FIG. 1 given a general view of the development system; in fig. 2 is a section along AA of FIG. one; in fig. 3-cuts along BB and BB of FIG. 2; in fig. 4-- cuts in GG and DD of FIG. 3

In the place of opening of the excavation site, the Kerschlag 1 conducts the furnace 2 with two sections of the coal-mining and running gear. A furnace 3 with three compartments, a running, a filling, and a logging furnace, is conducted through a nearby formation (Fig. 2). On the “minus horizon, on the same stratum, a bunker 4 for a backfill material and a chamber 5 for a pneumatic backfill vessel are arranged.

As the layers from furnace 3 are developed, every three layers, orths 6 are conducted on the reservoir under development.

The procedure for removing the horizontal layers is descending. At the same time, two paired cleansing faces 7 and 8 (Fig. 3), located at an elevation perpendicular to the angle of 45 to the formation strike, are being worked out. The step of laying is taken in one "tape 1.2 m wide. Free from laying the space in the stool is allowed in three" tapes. In the first tape, a cleaning operation is performed (Fig. 4). The second "tape is fixed, laid the bed, flooring and rolled metal mesh. A third of the tape is either being prepared for the tab or is being laid.

By the diagonal arrangement of the line of the bottom and the perpendicular alternation of it through the layer, favorable conditions for laying the sheets on the unfastened tape are achieved. All legnes are bonded with metal rings. In this way, it will create as if one continuous bed across the entire diagonal "tape - from hanging to the recumbent side of the bed. With the perpendicular position of the line, the bottom in the lower layer is the overlap of the free space above all three tapes; It fits flush with the soil. This condition facilitates the work of erecting the flooring of the grommets and the mesh and retains them during the work on the excavation of the lower layer. On the floor, perpendicular to the lining of the lining 9, a metal mesh is rolled out between the uprights. The stripping of the tape before laying is performed by portable shields (Fig. 4). Crusher coal produced by BB. Explosive coal donning enters the downhole conveyor. The coal is bypassed from the layer to the point of loading by gravity through furnace 2, which is carried out on the formation. Carbon outlet of the furnace is reinforced with iron pipes with a diameter of 600 mm. To store the coal at the bottom of the furnace, a bunker 10 is arranged. More to the coal-fired furnace, a scraper conveyor is installed along the layered drift of the recumbent side, irrespective of the position of the bottom line. The falling layers of the horizontal layers are dredged in a descending order with a tab, characterized in that, in order to lengthen the line of clearing faces, the layers are worked out with diagonal holes that are arranged in two adjacent layers mutually perpendicular. Delivery of coal from the refining plant of the invention

- 4 FIG. 2

with