SU97031A1 - The method of construction of the overlap of wire mesh in the development of powerful, oblique coal seams - Google Patents

Description

Methods for erecting wireflocks from a wire mesh in the design of powerful 1 x oblique coal seams with long poles along padapia or cam with reverse notch without layer separation are known. But they do not provide the reservoir with full power without the use of reverse lining in the longwall.

In the case of this method, this drawback is eliminated: the wire net is irregularly placed under the roof of the reservoir and from the side of the overlying substage on the soil of the inclined layer in the upper pack of the reservoir, and the horizontal layer from the side of the overlying substage.

On fng. 1 is a diagram of a development system with wire mesh overlap; on fig. 2 is a section along AA nBB in FIG. }; in fig. 3-section but CC in FIG. one.

The main drift 1 is held at the recumbent side of the formation.

At a height of 4-6 m from the main roadway, the first parallel roadway 2 is held at the sides of the bed.

There are two ventilation drifts: one is 3 at the roof, the other 4 is at the seam soil, and they are at the same level.

Extraction furnaces 5 are conducted from the ground for the ventilation track near the soil of the reservoir every 7 m along the strike of the reservoir, and R is the purpose of ventilation, are knocked together after every 10 m by coupling 6.

An intermediate furnace 7 is conducted on formations with a thickness of more than 8 m parallel to the excavation kiln and in the same vertical plane with it, at a distance of 3-m from the tops of the mining furnace.

For ventilation purposes, these ovens are knocked down by orths 8 every 10 meters.

DG 97031-2 -

For weak coals, Bi ip; i6oTKn are carried out with fastening, while for coals of medium stability and resistant with fastening, the following are carried out: Üb parallel drift, excavation furnaces and ventilation drifts. All other workings are carried out without fastening the park.

On the Granin of the excavation section; 1, the cutting necks are conducted: one near the soil, the other near the roof of the seam (in the same vertical plane).

On the sides of the wall of which the side is drawn a conventional "section 9, in one line with the section." On the side, an ort 10 is conducted to cut the horizontal layer between the ventilation drifts.

 the furnace at the recumbent side and the incision is carried out by a hiler with a width of 1-1.5 m, which is fastened with plaster circles on the beds.

The gap serves as a liter of laying the net on the boundary of the work on the strike of the reservoir.

The cleaning works begin with coal extraction in the lava section and in the horizontal layer. After the lava and horizontal layer is advanced by 3-4 meters, the grid is laid on the soil of the lava, in the horizontal layer and in the slot in the following order.

Rolls of the first row, 1;) are rolled over the entire surface of the lava and the horizontal layer; The third row of the grid is laid over the top of interlaced two rows, noc; i.e., CHJHBKa produces three rows of net wires.

Can be applied and d,;: p1np t. nets: its lengths but the length is connected overlapping with each other and 1: it is stitched at the ends with a wire.

In this way, a sufficiently strong overlap is obtained. In the horizontal layer, the mesh is laid on the soil of the layer and is supported on it by the uprights.

The processing of the lava and the horizontal layer is performed with the collapse of the usual episobs.

Cleaning work under the screen begins. after the lava and horizontal layer from the pelvic furnace along the strike for two "landing steps" and consist in dredging the coal from the excavation and intermediate (with a seam thickness of 8 m) furnaces.

Repulsed carbon node by the action of its own weight is delivered through the excavation furnace to the main drift and here it is loaded into trolleys.

The grid overlap P under the action of a rock that has collapsed into the developed space moves after the bottom.

At the same time, two or three slabs with an advance of 15–20 m can be worked out.

P rede:. invented by

The method of erecting overlapping wire mesh in the development of thick, obliquely lying coal seams with long pillars in the fall or chambers with a reverse notch without division into layers, characterized in that, in order to excavate the layer and the whole mine without the use of conventional lining the grid is preliminarily made under the roof of the reservoir and from the side of the upper deck and its podsat to the inclined layer being removed for this purpose, in the top pack of the reservoir and the horizontal layer from the side B11: sheleng n:; d: taj.

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