SU723178A1 - Apparatus for airing mine workings at outbursts spontaneous blowouts of coal, rock and gas - Google Patents

Description

The invention relates to mining and can be used by dpn pro in trivani workings with out of all emissions of coal, rock and gas.

A device for airing preparatory vrabok-ok when blasting operations includes a pre-vacuum pipe and storage tank.

The disadvantage of this device is its small capacity, limited by the volume of the pipeline, water and storage tank, the impossibility of gas utilization and the need to release it into the atmosphere of mountain ranges.

botok.

It is also known to a device for aerating mining operations in case of sudden outbursts of coal, rock and gas, including a pre-evacuated pipeline t, equipped with a diaphragm installed at the end of the pipeline located at the side of the mine working, means for evacuating.

a compressor, storage tanks, means for venting gas from the mine, and shut-off valves that allow the gas to be taken directly from the Ejection wave and accumulated in the state of crystalline hydrates followed by delivery to the surface 2.

However, when realizing this yctw device, it is necessary to have a compressor and storage tanks in the cramped conditions of mine workings, which is why the ventilation scheme is difficult and time consuming, and since the compressor capacity is small, the actual time of ventilation of the workings is longer than the gas-dynamic effect . In addition, there is a need to release gas to the surface in storage tanks.

Claims (1)

The purpose of the invention is to reduce gpb.irit device T5 reduction time 1sh airing. 37 The purpose is based on the fact that a part of the compressed air pipeline laid in the mine workings and connection through an additional pipeline equipped with a valve to the mine drainage network of the main pipeline equipped with a filter, a dust collector and a valve installed in series it is located at the side of the diaphragm, and the additional pipeline is equipped with a register of the methane cycling register, installed between the valve and its coupling node with the main pipe by wire, The drawing shows schematically the proposed device. The charged pipe 1, blocked by a diaphragm 2 and the coarse filter 3, is connected to an intermediate tank 4, which is combined with a dust collector. A pipe in compressed air is used as the vacuum pipe 1, which is connected to the mine degassing pipe through an additional pipe 5. a network 6. A valve 7 is installed in the pipeline 1 to shut off the compressed air. A valve 8 is provided on the additional pipe 5 to connect the pipeline 1 to the degassing network. e ristratsi gas concentration coming from the conduit 1 into a degassing network 6, is effected by registration date tors 9 methane apparatus operates as follows. Before starting, the compressed air line 1 is closed with a valve 7, and the end of it with a filter 3 of coarse air purification and diaphragm 2. Then the valve 8 is opened on an additional pipe 5 connecting pipe 1 to the degassing network 6, due to the vacuum that is in the degassing network , the vacuum is carried out {pipeline 1 and intermediate tank 4 При. When the gas-dynamic phenomenon occurs, the diaphragm 2 is destroyed under the action of the shock wave and the system is depressurized: pipeline 1 is intermediate Capacity 4 - degassing network 6. Gas, supplied to the mountain peak, enters the depressurized system at high speed and is discharged to the surface. When gas concentration decreases, coming from production in the degas network, to 4.5-5.0 %, which is determined by the methane detection sensor 9-, the valve 8 on the intermediate pipe 5 is closed. A coarse filter 3 is removed from conduit 1, the intermediate tank 4 combined with the dust collector is opened and the dust settled at the bottom is removed. Then, the intermediate tank 4 is hermetically sealed and, if necessary, the pipeline 1 is again used as a compressed air pipeline until the next work cycle, which can provoke the release of coal, rock and gas. The use of a device with an efficiency of about 80% contributes to improving the safety of work in mines, where work is under way on outburst-hazardous formations in outburst-hazardous rocks. With an isolated gas discharge from the mine directly to the surface through the mine drainage network, the outflowing of the mine shaft is prevented from gasing and, therefore, the damage caused by emissions of coal, rock and gas can be minimized. At the same time, the gas evolved during emissions can be utilized, which is expedient for both economic and environmental considerations. The implementation of the device does not require any capital expenditures; mine pipelines in the mine workings can be used to manufacture the device. Claims A device for aerating mine workings with sudden outbursts of coal, rock and gas, including a pipeline equipped with a diaphragm installed at the end of the pipeline located at the bottom of the mine working, means for evacuating, means for venting gas from the production and shut-off valves, characterized by that, in order to reduce the size of the device and reduce the time for ventilation, a portion of the compressed air pipeline laid as a pipeline and means for evacuation in the mine workings and connected through an additional pipeline, equipped with a valve, to the mine dismantling network, the main pipeline is equipped with a filter, a dust collector and a valve sequentially installed in it from the side of the diaphragm, and the additional pipeline is equipped with a methane registration sensor installed between the valve and the assembly node his main pipeline. Sources of information taken into account in the examination 1, USSR Author's Certificate N 318710, cl. E 21F 1 / OO. 2, USSR author's certificate No. 611О23, cl. E 21 F 7 / OO (prototype), 6 BUT / /