SU118440A1 - Method for preventing explosions of coal dust and methane during blasting operations - Google Patents
Method for preventing explosions of coal dust and methane during blasting operationsInfo
- Publication number
- SU118440A1 SU118440A1 SU590137A SU590137A SU118440A1 SU 118440 A1 SU118440 A1 SU 118440A1 SU 590137 A SU590137 A SU 590137A SU 590137 A SU590137 A SU 590137A SU 118440 A1 SU118440 A1 SU 118440A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- coal dust
- blasting operations
- during blasting
- preventing explosions
- methane during
- Prior art date
Links
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Description
Способы предупреждени взрывов угольной пыли и метана при взрывных работах в шахтах посредством предварительного осланцевани выработок, а также проветривани забоев, известны.Methods for preventing explosions of coal dust and methane during blasting in mines by means of prior olanzeation of workings, as well as aeration of faces, are known.
Особенность описываемого способа заключаетс в заполнении воздушно-механической пеной высокой кратности (пор дка 800-1000) призабойного пространства, в котором производитс взрыв шпуров забо . Это повышает безопасность ведени взрывных работ при прохождении глухих горных выработок.A feature of the described method is to fill a high-expansion air-mechanical foam (on the order of 800-1000) in the bottomhole space where blast holes are made. This increases the safety of blasting operations during the passage of deaf mine workings.
Суш,ность описываемого способа заключаетс в следуюшем.The dryness of the described method is as follows.
На шахтах, опасных по газу или пыли, при проходке выработок взрывными работами, перед палением, призабойную часть выработки на длину 15-20 м от забо заполн ют «пенной пробкой. Пена, соприкаса сь со стенками выработки, смачивает угольную пыль, а заполн призабойное пространство, вытесн ет из него смесь метана и воздуха и не дает возможности образоватьс взрывоопасной воздушной смеси. Кроме того, продукты взрыва, пройд через пенное заполнение, охлаждаютс до температуры ниже 700°.In mines that are hazardous for gas or dust, when sinking workings by blasting, before burning, the bottom-hole part of the excavation for a length of 15–20 m from the bottom is filled with “foamy cork. The foam, in contact with the walls of the excavation, wets the coal dust, and the filling of the bottom hole, displaces the mixture of methane and air from it and makes it impossible to form an explosive air mixture. In addition, the explosion products, after passing through the foam filling, are cooled to a temperature below 700 °.
Такое пенное заполнение, основанное на принципе охлаждени пожарных газов, может предотвратить возгорание горючих веществ.Such a foam filling, based on the principle of cooling of fire gases, can prevent the ignition of combustible substances.
На чертеже изображена схема установки дл получени пены, включаемой посто нно в вентил ционную линию вентил тора частичного проветривани .The drawing shows an installation diagram for producing foam that is continuously included in the ventilation line of a partial ventilation fan.
Установка состоит из сетки /, водораспылительной насадки 2, пожарного прорезиненного рукава 3, пеносмесител 4 и сосуда 5 с пенообразователем емкостью около 50 л.The installation consists of a grid /, a water spray nozzle 2, a rubber fire hose 3, a foam mixer 4, and a vessel 5 with a frother with a capacity of about 50 liters.
Воздух, идуший по вентил ционной трубе через сетку, взаимодейству с распыленным раствором пенообразовател , образует пену, котора затем подаетс в призабойное пространство выработки. Скорость выхода пены зависит от состо ни вентил ционной линии труб и типа вентил тора. Количество набрызгиваемого на сетку пенообразующего раствора и количество проход ш,его через сетку воздуха относ тс другThe air going through the ventilation pipe through the grid, interacting with the sprayed solution of the foaming agent, forms a foam, which is then fed into the bottom hole production space. The rate of foam output depends on the state of the vent line and the type of fan. The amount of the foaming solution sprayed on the grid and the amount of passage w, it through the air grid are different
№ 118440No. 118440
к другу в отношении примерно 1 : 1250. При этом получаетс многократна пена (пор дка 800-1000).to a friend in a ratio of about 1: 1250. This results in multiple foam (on the order of 800-1000).
Предмет изобретени Subject invention
Способ предупреждени взрывов угольной пыли и метана при производстве взрывных работ, отличающийс тем, что, с целью повышени безопасности ведени взрывных работ при прохождении глухих горных выработок, призабойное пространство, в котором производитс взрыв шпуров забо , заполн етс воздушно-механической пеной высокой кратности (пор дка 800-1000).A method for preventing explosions of coal dust and methane during blasting operations, characterized in that, in order to increase the safety of blasting operations during the passage of deaf mine workings, the bottom hole space where blast holes are being drilled is filled with air-mechanical foam of high multiplicity 800-1000)
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU590137A SU118440A1 (en) | 1958-01-20 | 1958-01-20 | Method for preventing explosions of coal dust and methane during blasting operations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU590137A SU118440A1 (en) | 1958-01-20 | 1958-01-20 | Method for preventing explosions of coal dust and methane during blasting operations |
Publications (1)
Publication Number | Publication Date |
---|---|
SU118440A1 true SU118440A1 (en) | 1958-11-30 |
Family
ID=48390480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU590137A SU118440A1 (en) | 1958-01-20 | 1958-01-20 | Method for preventing explosions of coal dust and methane during blasting operations |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU118440A1 (en) |
-
1958
- 1958-01-20 SU SU590137A patent/SU118440A1/en active
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