CS201222B1 - Method of orientation of the working face eliminating non-desired traverse of the scraper conveyer - Google Patents

Description

The invention solves the method of orientation of the face queue eliminating unwanted movement of the scraper conveyor in the direction of its longitudinal axis during its folding.

Running the scraper conveyor while it is being loaded is a worldwide problem. In the case of mechanized wall mining of coal, a double deflection occurs during reloading of the scraper conveyor and thus the entire conveyor is moved from the face to the face.

Currently, this problem is solved worldwide by installing robust anchoring stations equipped with pulling rollers to lift the sliding conveyor up.

This problem has not yet been solved in our coal districts. This has an adverse effect on the economy, but also on the laboriousness of handling the 8 scraper conveyor and the frequent damage to the core conveyor parts.

The drawbacks caused by the present system of reloading the scraper conveyor in the wall coal faces can be eliminated by the present invention, which is based on the fact that the line of the original face queue is rotated relative to the slope by an angle oC. axis and the lateral displacement value of the face conveyor, depending on the engagement. The tangent of the angle of rotation tc of the front face from the slope is equal to the ratio of the length of displacement of the face conveyor in the direction of its longitudinal axis in the lateral displacement of the face conveyor

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a face conveyor. The angle of rotation θ of the new face front line relative to the slope can be positive or negative.

By rotating the original front face line with a pre-calculated positive or negative angle, ee automatically eliminates the shift of the scraper conveyor from or to the face while it is being reloaded, thereby achieving improved safety and mining culture, increasing daily logging and performance and reducing costs per tonne . Furthermore, overwork caused by unwanted shifting of the scraper conveyor to its new working position is eliminated, such as shortening and lengthening the wall conveyor, adjusting the transfer from the wall conveyor to the collecting conveyor under the mine, and possibly handling the collecting conveyor in the hauling corridor.

1 shows the elimination of q) moving the conveyor to the mine by turning the wall at a positive angle, and FIG. 2 shows the orientation of the lining queue eliminating the conveyor from the mine to the corresponding corridor by turning face front to negative angle.

The line of the original front face 4 of FIG. 1 is rotated from the original perpendicular direction, which is identical to the direction of the downstream line 2, by a positive angle eC with respect to the discharge class 4 in the event that the face conveyor 4 would move during reloading, it tended to run away from Explosive Class 3 towards the shroud, so that the line of the new face queue 5 forms an angle (90 ° - 0 °) through the explosive corridor 8.

Referring to FIG. 2, the line of the original original face queue 4 from the original perpendicular direction, which is identical to the direction of the downcomer line 2, is rotated relative to the blown class 3 by a negative angle flC in case the face conveyor 4 would while moving during reloading, he tended to move out of the mine towards the exhaust class 4, so that the line of the new face front 5 forms an angle (90 + θ) with the exhaust passage 3. The angle of rotation of the face queue eC is determined according to the formula. / Δ1 tg = - ¹ -....... bp

The bp value represents the transverse displacement of the face conveyor 4 which is required to advance the new face front 5 by one engagement. The value Δΐ indicates the longitudinal displacements of the face conveyor 4 in the direction of its longitudinal axis with a lateral displacement bp of the conveyor 4 by one engagement.

The face wall orientation system described above can be used in all coal-bearing coal face with mechanized mining if the engagement value which is folded by a single-face conveyor is so great that when the conveyor is reloaded due to the kinematics forces of the scraper conveyor parts displacement along the longitudinal axis.

Claims (3)

SUBJECT OF THE INVENTION 1. A method of orientation of the front queue eliminating the unwanted movement of the scraper conveyor from or to the face during its folding, characterized by the fact that the line of the original face queue (1) is rotated relative to the runners (2) by an angle (<Z)> the magnitude of the longitudinal displacement (Δ1) of the face conveyor (4) in the direction of its longitudinal axis and the value of the lateral displacement (bp) of the face conveyor (4) · depending on the engagement. 2. A method according to claim 1, characterized in that the tangent of the angle of rotation (eu) of the line of the new face (5) from the slope (2) is equal to the ratio of the longitudinal displacement (Δΐ) of the face conveyor (4). at a lateral displacement (bp) of the face conveyor (4) depending on the progress of the line of the new face queue (5) by one engagement and the values of the lateral displacement (bp) of the face conveyor (4). Method of orientation of the front queue according to point 1, line of the new front queue (5) from the slope (2) 4. The method of orientation of the front queue according to item 1, the line of the new front queue (5) from the slope (2), characterized in that the angle (t1) is positive. An angle of rotation, characterized in that the angle of rotation (eu) is negative.