CS199195B1 - Device for continuous removal of impurities from the flow of coal - Google Patents

Abstract

Equipment for continuous removal of impurities from the flow of coal mined from collapse fields, e.g. pillars, tailings and remnants of old mine workings. The equipment consists of a dumping wagon, which is connected to a movable disc screening grate corresponding to the grain size composition of the coal and a driven trough grate with driven spherical discs and a side guide, which is deflected from the axis of the belt conveyor.

Description

Equipment for the continual removal of admixtures from the flow of coal from cave-in fields, such as props, scourings and remnants of old mine workings. The apparatus consists of a shovel, followed by a movable disc sorting grid corresponding to the grain size of the coal and a driven trough arrangement with driven spherical discs and a lateral guide which is deflected from the axis of the conveyor belt.

199 195 Int. Cl? B07B 13/00

199 19S

The invention relates to a device for the continuous removal of admixtures from fossilized coal streams from cave fields, for example, pits, timber and remnants of old mine workings.

When mining coal from cave fields outside its own coal, a large amount of timber, props, etc., is extracted and transported from the former underground mining. The uprights cause a number of transport difficulties, but mainly on long distance conveyor belts. To avoid damaging the conveyor belt, long-distance conveyor belt transportation must be stopped and the handrails removed from the waist mainly by hand. This work is physically demanding and dangerous.

The aforementioned drawbacks are eliminated by the continuous flow admixture device benefiting from the caving fields according to the invention, which consists of a shredder, followed by a displaceable screen sorting grid corresponding to the coal grain composition and a driven trough arrangement with powered spherical disks. and a side guide which is deflected from the belt conveyor.

The continuous contaminant removal device from the coal fields of the present invention automatically removes non-compliant impurities such as lignite, remnants of old mine workings, and the like, thereby eliminating downtime in mining and, in addition, provides increased work safety and eliminates strenuous physical work.

The drawing schematically illustrates an apparatus for continuously removing admixtures from a stream of coal coal from cave fields according to the invention, in which Fig. 1 is a front view and Fig. 2 is a plan view of the device.

The device for the continuous removal of impurities from the cave fields consists of a collecting car 2, followed by a disc screening grate 3, which corresponds to the grain size of the coal, and which allows the coal 5 to fall onto the upper branch of the conveyor belt 1 of the conveyor belt. The dimensional pieces 6 are transferred to a trough driven grate 4 with spherical discs 7 and a lateral guide 8 which is deflected from the axis of the conveyor belt.

The bulk is conveyed by a conveyor belt through a collecting car 2 to a disc sorting grid 3 where the coal falls onto a conveyor belt and bulky pieces 6, e.g., uprights, are transferred from the disc sorting grid 3 to a trough driven grate 4 diverted from the conveyor axis. these undesirable impurities and bulky pieces 6 outside the conveyor belt from which they are loaded and weighed by auxiliary machinery. This avoids breakage of the conveyor belt mainly at the transfer point. It also saves time for stopping long-distance belt transport and extracting timber from mining.

Claims (1)

SUBJECT OF THE INVENTION Apparatus for the continuous removal of admixture from hard coal from cave fields characterized in that it consists of a collecting car (2), followed by a movable disc sorting grid (3) corresponding to the coal grain composition and a trough driven grate (4) with driven spherical discs (7) and a lateral guide (8), which is deflected from the axis of the belt conveyor.