PL153425B1 - Method and system for spraying dust occuring during mining operations in mines - Google Patents

Description

REPUBLIC RAI PATENT DESCRIPTION 153425 POLAND - Additional patent to patent no --- Int. Cl. ⁵ E21F 5/02 Reported: 87 01 02 / P. 263531 / Priority (SllUlMk tlt OFFICE PATENT Application announced: es 09 29 RP Patent description published: 1991 08 30

Creators of the invention: Stanisław Orzechowski, Adam Gorzkowski

The holder of the patent: Kopąlnia Węgla Kamiennego Staszic ··, • Katowice / Poland /

METHOD AND SYSTEM OF SCRUBBING THE DUST ARISING AT THE MACHINING OF EXCAVATORS

The subject of the invention is a method and a system for spraying dust generated during mining of minerals, especially in walls and paving faces of hard coal mines.

Dust generated during mining of minerals in hard coal mines poses a serious threat to the health and life of miners, e.g. respiratory system diseases, the possibility of coal dust explosion. Therefore, eliminating dust is one of the basic elements ensuring work safety.

The currently used method of spraying the dust generated during mining of minerals consists in spraying the spraying liquid through nozzles built on the head of the roadheader. The spraying liquid from the water line, e.g. fire-fighting liquid, is led to the body of the roadheader, and then to the nozzles by means of water hoses. the combine head does not eliminate dust from the peripheral dust streaks. In addition, the nozzles are systematically contaminated, preventing their operation, and are often torn by the debris and lost irretrievably. Moving the combine along the wall also breaks the water hoses. Failures resulting from the above reasons cause the combine's downtime.

The aim of the invention is to develop a method and a system for spraying dusts generated during the mining of minerals, which would significantly improve the safety of work on walls and pavements. The aim of the invention is also to eliminate breakdowns of the roadheader resulting from failures related to fouling and tearing off nozzles, breaking water hoses, and thus improving the rhythm of work in mining departments and reducing the costs associated with removing the above-mentioned failures. This has been solved according to the invention in such a way that there are spraying nozzles located on the elements of the roadway housing, and the dosing of the spraying liquid supplied to the nozzles is controlled by the deflection of the side wall or by the combine's movement.

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The system implementing the method according to the invention consists of nozzles mounted on the pavement housing, which are connected through rubber hoses with the outputs of control valves. Control valve inputs through rubber hoses and safety valves are connected with the runoff or fire protection line. The control valves are coupled with the face guards or elements controlled by the combine's advance.

The subject of the invention has been shown in the embodiment in the drawing showing the system for sprinkling dusts generated during hard coal mining installed on the section of the hydraulic roadway support. The dust sprinkling system consists of 2 spraying nozzles mounted on the front wall cover 1 of the hydraulic walkway housing 8, which are connected by means of rubber hoses 3 to the control valve output 4. Control valve input 4 is connected through a rubber hose 5 to the output of the safety valve 6, the input of which is connected to the flow line of the hydraulic medium 7. Moreover, the control valve is coupled to the cover 1 of the face of the wall, the movement of which controls the dosing of the spraying liquid.

The operation of the system is as follows. After the combine is moved under the next section of the hydraulic housing 8, the cover 1 of the face of the wall tilts towards the canopy of the housing 8. This deflection opens the control valve 4. The spraying liquid from the drainage line 7 flows through the safety valve 6, rubber hose 5, control valve 4, hoses rubber nozzles 3 and nozzles 1 sprinkles the face of the wall 9. After moving the combine under the next section of the housing, in the section under which the combine worked previously, the cover of the front of the wall 1 swings towards the face of the wall 9. This deflection causes the control valve 4 to close, and thus finishing spraying the part of the face of the wall under which the combine was previously working. On the other hand, in the section under which the combiner has been moved, the deflection of the front wall cover towards the canopy of the housing starts watering the next part of the wall.

Claims (2)

Patent claims 1. The method of spraying dusts generated during mining of minerals, characterized by the fact that the spraying liquid flows from nozzles / 2 / located on the elements of the roadway housing / 8 /, and its dosing is controlled by the deflection of the wall cover / 1 / or the combine movement. 2. A system for sprinkling the dust generated during mining of minerals, characterized in that the nozzles / 2 / mounted on the roadway housing / 8 / through rubber hoses / 3 / are connected with the outputs of control valves / 4 /, inputs of control valves / 4 / through rubber hoses / 5 / and safety valves / 6 / are connected to the drain or fire mains, moreover, the control valves are coupled with the face guards / 1 / or elements controlled by the shearer's movement. Department of Publishing of the UP RP. Circulation 100 copies Price: PLN 3,000