PL8563B1 - Plain or artificial rock dust blast hole wadding. - Google Patents
Plain or artificial rock dust blast hole wadding. Download PDFInfo
- Publication number
- PL8563B1 PL8563B1 PL8563A PL856327A PL8563B1 PL 8563 B1 PL8563 B1 PL 8563B1 PL 8563 A PL8563 A PL 8563A PL 856327 A PL856327 A PL 856327A PL 8563 B1 PL8563 B1 PL 8563B1
- Authority
- PL
- Poland
- Prior art keywords
- blast hole
- wadding
- plain
- rock dust
- artificial rock
- Prior art date
Links
- 239000000428 dust Substances 0.000 title claims description 7
- 239000011435 rock Substances 0.000 title claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Description
W celu zapobiezenia wybuchom w ko¬ palniach otwory strzalowe przysypywano pylem skalnym, przyczem próbowano nie¬ kiedy dodawac do takiej przybitki pewna nieznaczna ilosc plynów.Okazalo sie, ze mozna zwiekszyc znacz¬ nie bezpieczenstwo przeciwko wybuchom pylu weglowego i gazów wybuchowych, skoro otwory strzalowe przysypac zwy¬ klym pylem skalnym z nieznacznym dodat¬ kiem wody lub innego plynu laczacego pyl, przyczem zawartosc wilgoci wynosi okolo 15%. Powyzszy stosunek ilosciowy mie^ szaniny zmniejsza natychmiast stopien bezpieczenstwa, skoro dodac mniejsza ilosc plynu. Przybitka, utworzona w mysl wyna¬ lazku, zapewnia bezpieczenstwo tak daleh ce, iz zewnetrzna przybitka otworów strza¬ lowych staje sie zbyteczna. Jest to rzecz obojetna, w jaki sposób wilgotny pyl skal¬ ny zostanie umieszczony w otworze strza¬ lowym, mozna to uskutecznic zapomoca po¬ wietrza sprezonego, oslon papierowych i im podobnych. PL PLIn order to prevent explosions in the mines, the blast holes were covered with rock dust, and some attempts were made to add a small amount of liquids to the cartridge. normal rock dust with a slight addition of water or some other liquid that binds the dust, since the moisture content is about 15%. The above ratio of the mixture immediately reduces the degree of safety when less liquid is added. The wad of the invention provides security so long as the outer shell of the shot holes becomes superfluous. It is indifferent to how wet rock dust is placed in the blast hole, it can be effected by compressed air, paper covers and the like. PL PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL8563B1 true PL8563B1 (en) | 1928-04-30 |
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