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특허 상세정보

Method of preventing afterblast sulfide dust explosions

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C06D-005/06    F42B-003/00    C06B-031/28   
미국특허분류(USC) 102/289 ; 102/313 ; 149/049 ; 149/060 ; 149/083 ; 299/013
출원번호 US-0899823 (1997-07-24)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 0  인용 특허 : 12
초록

The invention comprises a method of preventing afterblast sulfide dust explosions in blasting operations involving sulfide-containing ores, which method comprises (a) loading a borehole that has been drilled into a sulfide-containing ore body with an emulsion blasting agent that comprises an emulsifier, a continuous organic fuel phase, a density control agent, and a discontinuous oxidizer salt solution phase that comprises inorganic oxidizer salt(s), water and urea as a chemical inhibitor in an amount of from about 1% to about 10% by weight of the blasti...

대표
청구항

[ What is claimed is:] [1.] A method of preventing afterblast sulfide dust explosions in blasting operations involving sulfide-containing ores, which method comprises(a) loading a borehole that has been drilled into a sulfide-containing ore body with an emulsion blasting agent that consists essentially of an emulsifier, a continuous organic fuel phase, a density control agent, and a discontinuous oxidizer salt solution phase that consists essentially of inorganic oxidizer salt, water and characterized by urea in an amount of from about 1% to about 10% by...

이 특허에 인용된 특허 (12)

  1. Evans William B. (Brossard CAX) Nguyen Anh D. (Brossard CAX). Cap-sensitive packaged emulsion explosive. USP1995105454890.
  2. Mullay John J. (Hazeltown PA). Composite explosive utilizing water-soluble fuels. USP1989104872929.
  3. Tag Arne (Oslo NOX) Petterson Bjorn R. (Oslo NOX) Nygaard Erik C. (Porsgrunn NOX). Emulsion explosive. USP1985024500369.
  4. Healy Nigel A. (Edenvale ZAX). Emulsion of a melt explosive composition. USP1981024248644.
  5. Cranney Don H. (10535 S. Featherwood South Jordan UT 84065) Maxfield Blake T. (6614 S. 5095 West West Jordan UT 84084). Emulsion that is compatible with reactive sulfide/pyrite ores. USP1992105159153.
  6. Engsbraten Bjrn (brebro SEX). Making a reduced volume strength blasting composition. USP1993125271779.
  7. Yabsley Michael (Cheltenham AUX) Skinder Waclaw (Essendon AUX) Mitchell Ken (Cheltenham AUX). Melt-in-fuel emulsion explosive composition and method. USP1991065026442.
  8. Granlund Lars A. (Nora SEX). Method of manufacturing emulsion explosive insensitive to a #8 detonator. USP1982074338146.
  9. Granholm Richard H. (Sandy UT) Lawrence Lawrence D. (Sandy UT). Method of reducing nitrogen oxide fumes in blasting. USP1997035608185.
  10. Mullay John J. (Hazleton PA) Farkas Jane M. (Palmerton PA) McGinley Cathy J. (Coaldale PA). Precompression resistant emulsion explosive. USP1996045507889.
  11. McKenzie Lee F. (15090 Rose Canyon Rd. Riverton UT 84065). Stabilized emulsion explosive and method. USP1991125076867.
  12. Cranney Don H. (10535 S. Featherwood South Jordan UT 84065) Maxfield Blake T. (6614 S. 5095 West West Jordan UT 84084). Surfactant for gassed emulsion explosive. USP1990104960475.