SU700660A1

SU700660A1 - Method of dust suppression at stoping face

Info

Publication number: SU700660A1
Application number: SU762408475A
Authority: SU
Inventors: Олег Иванович Дивин; Иван Стефанович Орехов; Владимир Иванович Капырин
Priority date: 1976-10-04
Filing date: 1976-10-04
Publication date: 1979-11-30

Description

1one

Изобретение относитс к горной промышленности , преимуш.ественно угольной, и может быть использовано дл подавлени пыли в очистном забое.The invention relates to the mining industry, predominantly coal, and can be used to suppress dust in a clearing face.

Известен способ подавлени пыли, заключаюш .ийс в подаче тонкодиспергированной орошающей жидкости посредством форсунок на пылеобразуюшую поверхность 1.There is a known method for suppressing dust, i.e., in supplying a finely dispersed irrigating liquid through nozzles to a dust-forming surface 1.

Однако данный способ не обеспечивает эффективного подавлени пыли из-за сноса тонкодиспергированной жидкости вентил ционной струей в горную выработку, что приводит к повышенному расходу орошающей жидкости.However, this method does not effectively suppress dust due to the demolition of a finely dispersed fluid by a ventilation stream into the mine workings, which leads to an increased consumption of irrigating fluid.

Известен способ подавлени пыли в очистном забое, включающий подачу тонкодиспергированной и грубодисперсной орошающей жидкости посредством форсунок, поинтервально раз.мещенных в очистном забое, причем удерживание тонкодиспергированной орощающей жидкости достигают созданием завесы из грубодисперсной жидкости , окружающей тонкодиспергированную 2.There is a known method for suppressing dust in a clearing borehole, which includes the supply of finely dispersed and coarsely dispersed irrigating fluid through nozzles that are intermittently placed in the cleansing borehole, and the retention of the finely dispersed irrigation liquid is achieved by creating a curtain of coarse liquid surrounding the finely dispersed 2.

Недостаток заключаетс в значительном расходе орошающей жидкости, вызывающем переувлажнение полезного ископае.мого и боковых пород.The disadvantage is a significant consumption of irrigating fluid, causing overwetting of minerals and other lateral rocks.

Целью изобретени вл етс повышениеThe aim of the invention is to increase

эффективности пылеподавлени за счет сокращени расхода орощающей жидкости. Это достигаетс тем, что тонкодиспергированную жидкость подают по всей длине очистного забо , а грубодиспергированную жидкость подают у сопр жени очисткого забо с горной выработкой по ходу движени вентил ционной струи, приче.м форсунки размещают с возможностью перекрыти сечени очистного забо факелами орощающей жидкости.dust suppression efficiency by reducing the consumption of irrigation liquid. This is achieved by the fact that the finely dispersed liquid is supplied along the entire length of the clearing in the bottom, and the coarsely dispersed liquid is fed at the interface of the clearing in the face with mine working during the movement of the air flow, and the nozzles are placed with the ability to shut off the cleansing face of the irrigating fluid.

На фиг. 1 представлена схема размец.1.ени форсунок пылеподавлени по длине очистного забо ; на фиг. 2 - размещение форсунок пылеподавлени в поперечном сечении очистного забо .FIG. 1 shows a diagram of the size of 1. dust suppression nozzles along the length of the clearing face; in fig. 2 - placement of dust suppression nozzles in the cross section of the clearing face.

Способ осуществл етс следующим образом .The method is carried out as follows.

Claims

Pipelines 1 and 2 are laid along the clearing face for supplying irrigation fluid and compressed air, respectively. Under the overlap of the securing section, the nozzles 3 are mounted for supplying a finely dispersed irrigating fluid, which are hydraulically connected through the mixer 4 with the indicated pipelines. In order to remove 5 drops of a finely dispersed irrigation liquid from the outgoing ventilation jet at the interface of the cleaning and preparatory workings under the overlap of the lining, nozzles 6 are installed to supply coarse irrigating liquid. By supplying irrigating fluid to pipeline 1 and compressed air to pipeline 2 through mixer 4 to nozzles 3 and only irrigating liquid to liquid nozzles 6, respectively, form a curtain of finely dispersed and coarsely irrigating liquid network that overlap the cross-section of the cleaning fluid. The advantage of the invention is to prevent the liquid of the liquid and the liquid from drifting away from the fluid. the development of a ventilation jet and a reduction in the flow rate of the irrigation liquid for suppressing dust in the clearing face. Claims The method of suppressing dust in a clearing face, including the supply of finely dispersed and coarsely dispersed irrigating fluid to it by means of nozzles positioned intermittently in the cleaning face, characterized in that, in order to increase the effectiveness of dust suppression by reducing the flow of irrigating liquid, the finely dispersed liquid serves to supply the dusting liquid to the pressure suppression effect by reducing the flow of irrigating liquid, to disperse the liquid that serves to distribute the liquid through the spray nozzle. of the clearing bottom, and coarsely dispersed liquid is supplied at the interface of the clearing face with the mine workings along the direction of the air flow, The nozzles are placed with the possibility of blocking the cross-section of the cleansing inlet by torches of irrigating fluid. Sources of information taken into account during the examination 1. Fighting dust on coal fields abroad. M., Ugletekhizdat, 1959, p. 36- 37.

2.Gubaylovsky A.G., Merkulov S.D. The results of comparative tests of various means of dust suppression during operation of the KSh-ZM combine in Kuzbass. - “Coal, 1974, No. 11, p. 35-38.