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41. 发明专利

JP2003238283A GRANULAR EXPLOSIVE COMPOSITION 审中-公开
公开(公告)号：JP2003238283A
公开(公告)日：2003-08-27
申请号：JP2002039909
申请日：2002-02-18
申请人： ASAHI KASEI CORP
发明人： TOKITA ATSUYA
IPC分类号： F42D1/24 , C06B31/30
摘要： PROBLEM TO BE SOLVED: To provide a granular explosive composition which makes disintegration less, sensitivity low and power high. SOLUTION: The granular ammonium nitrate having the percentage of oil absorption of 18 to 23% and hardness of 5.2 to 8.8 is used as the granular explosive composition containing the granular ammonium nitrate. The oxygen balance per 100 g of the explosive is further preferably 0 to -11 g. COPYRIGHT: (C)2003,JPO

42. 发明专利

JP2001039788A WATER RESISTANT EXPLOSIVE POWDER 失效
公开(公告)号：JP2001039788A
公开(公告)日：2001-02-13
申请号：JP20909199
申请日：1999-07-23
申请人： ASAHI CHEMICAL IND
发明人： ARAMAKI SHOSAKU , INOUE JUNJI
IPC分类号： F42D99/00 , C06B23/00 , C06B31/28 , F42D1/24 , F42D7/00
摘要： PROBLEM TO BE SOLVED: To effect reaction with water in a water hole to generate gas, to expel the water infiltrating the inside of explosive powder, to facilitate ignition and to obtain a stable detonation reaction by consisting the above explosive powder of granular explosive powder essentially consisting of ammonium nitrate and a gas generating agent reacting with the water. SOLUTION: The gas generating agent reacting with the water is sodium nitrite, sodium hydrogencarbonate, ammonium hydrogencarbonate, ammonium carbonate, or the like, preferably for production, which efficiently generates the gas by contact with or dissolution in the water if the pH value of the water is in an adequate range. If a pH control agent, such as an acidic or alkaline material, is previously added thereto for this purpose, the gas may be generated without being affected by the pH of the water around a use site and a gas generation rate) may be controlled by the amount of the pH control agent to be added. For example, the sodium hydrogencarbonate is small in the gas generation rate with the neutral water and, therefore, the gas generation rate is increased by changing the water to the acidic side by using boric acid, or the like.

43. 发明专利

JPH0552500A SEALING MATERIAL FOR LOADING DYNAMITE AND MATERIAL COMPOSITION THEREOF 失效
公开(公告)号：JPH0552500A
公开(公告)日：1993-03-02
申请号：JP23869491
申请日：1991-08-26
申请人： CHIYODA CHEM ENG CONSTRUCT CO
发明人： MIYOSHI HAJIME , MASHINO ZENICHI , OKABAYASHI IKUO
IPC分类号： C04B18/08 , F42D1/24
摘要： PURPOSE:To obtain a sealing material for loading a dynamite, which is prominent in forming property as well as loading characteristics and favorable in cost, by a method wherein a material composition, produced by blending fly ash, bentonite and mud with a specified ratio, is formed so as to have a predetermined configuration. CONSTITUTION:A sealing material for loading a dynamite is obtained by forming a material composition, produced by blending 60-70wt.% of fly ash, 15-40wt.% of bentonite and 0-20wt.% of mud consisting of fine particles, so as to have a predetermined configuration. In this case, the bentonite in the material composition should be powder, containing 20% or less of grains larger than 200 mesh and having water contents of 10wt.% or less. The mud of the material composition should have a grain distribution containing 80wt.% or more of particles having the grain size of 74mum or less while a predetermined amount of water is added to the material composition to form it as hydrolytic blend. The material composition, prominent in forming property as well as loading characteristics, can be obtained with a cost utilizing industrial waste or the fly ash effectively in such a manner.

44. 发明专利

JPH0429000B2 失效
公开(公告)号：JPH0429000B2
公开(公告)日：1992-05-15
申请号：JP14116386
申请日：1986-06-17
申请人： NIPPON STEEL CORP
发明人： KAIHARA TATSUO , SAKAMOTO TAKASHI , OOE KYOTAKA
IPC分类号： F42D1/08 , C21B7/00 , F42D1/24 , F42D3/00

45. 发明专利

JPS63150598A METHOD OF BLAST CONSTRUCTION 失效
公开(公告)号：JPS63150598A
公开(公告)日：1988-06-23
申请号：JP29798286
申请日：1986-12-15
申请人： OHBAYASHI CORP
发明人： KOIDE TADAO
IPC分类号： F42D1/08 , E21C37/14 , F42D1/10 , F42D1/24

46. 发明专利

JPS57104792A PREVENTION OF WATER LEAKAGE OF BALLING HOLE IN DEEP LAYER 失效
公开(公告)号：JPS57104792A
公开(公告)日：1982-06-29
申请号：JP17758180
申请日：1980-12-16
申请人： TAKENAKA KOMUTEN CO , SEKISO KK
发明人： MURATA AKIRA , OOKOUCHI KATSUTOSHI , KAMATA SEIZOU
IPC分类号： E21B21/00 , E21B33/13 , F42D1/24

47. 发明专利

JPS50148513A 失效
公开(公告)号：JPS50148513A
公开(公告)日：1975-11-28
申请号：JP5849174
申请日：1974-05-24
IPC分类号： E02F5/30 , E02F9/00 , F42D1/08 , F42D1/24

48. 发明公开

US20240118065A1 MODULAR RAPID DEPLOYMENT CHARGES 审中-公开
公开(公告)号：US20240118065A1
公开(公告)日：2024-04-11
申请号：US17938896
申请日：2022-10-07
申请人： Breacher's Hardware LLC
发明人： Avner Klein
IPC分类号： F42D1/02 , F42D1/24
CPC分类号： F42D1/02 , F42D1/24 , F42D3/00
摘要： A modular rapid deployment explosive charge device, the device being configured for simple assembly and ease of access and placement at a target site, with the feature that detonation cords may be reversibly loaded, adjusted, removed or replaced to facilitate flexibility of operation and adjustments to intended characteristics and impact of blast event, facilitate flexibility of operation in placement and in timing of explosive blast event, and features of the device system and methods of fabrication and assembly thereof.

49. 发明授权

US11808559B2 Tamp for explosive material 有权
公开(公告)号：US11808559B2
公开(公告)日：2023-11-07
申请号：US17190321
申请日：2021-03-02
申请人： River Front Services, Inc.
发明人： Anthony Miles Brown , Donald Ray Brown
IPC分类号： F42D1/08 , F42D1/20 , F42D1/24 , F42B3/087
CPC分类号： F42D1/20 , F42D1/08 , F42D1/24 , F42B3/087
摘要： This description relates to a tamp for an explosive. The tamp is formed from heat-shrink material having its ends heat-shrunk closed holding a tamp substance therein. A length of heat-shrink material is provided. A first end of the heat-shrink material is heated-shrunk closed to create a bag shape. A tamp substance is inserted into the bag via a second end of the heat-shrink material. The second end of the heat-shrink material is heat-shrunk closed to create a tamp. The tamp is placed adjacent to an explosive. This description also relates to a sleeve for an explosive. The sleeve is formed from heat-shrink material. An explosive is placed in the sleeve. One or both ends of the sleeve may be heat-shrunk closed.

50. 发明授权

US4586438A Borehole stemming with a column of liquefiable and/or vaporizable chunks of solid material 失效
标题翻译：钻孔柱塞，具有可液化和/或可蒸发的固体材料块
公开(公告)号：US4586438A
公开(公告)日：1986-05-06
申请号：US652268
申请日：1984-09-20
申请人： David L. Coursen , James D. Heffner
发明人： David L. Coursen , James D. Heffner
IPC分类号： F42D1/24 , F42B3/00
CPC分类号： F42D1/24
摘要： To prevent the rapid escape of high-pressure explosion gases when an explosive charge is initiated in a borehole, the hole is stemmed with chunks of readily liquefiable and/or vaporizable solid material, preferably chunks of ice and/or chunks of dry ice, piled up one upon the other so as to form a columnar bed of pre-solidified stemming material. The column remains in place during the explosion, and thereafter disappears by melting and/or subliming on absorbing heat from the surrounding formation. A preferred stemming column comprises a combination of ice chunks and chunks of dry ice, e.g., wherein the ratio of dry ice to ice in the column decreases with distance from the explosive charge.
摘要翻译：为了防止在钻孔中引发爆炸装置时高压爆炸气体的快速逃逸，该孔被容易地液化和/或可蒸发的固体材料块块，最好是大量的冰块和/或干冰块块堆积一个接一个地形成一个预固化的引茎材料的柱状床。该柱在爆炸期间保持在适当位置，然后通过在从周围地层吸收热量时熔化和/或升华而消失。优选的柱塞柱包括冰块和干冰块的组合，例如其中柱中的干冰与冰的比例随着与炸药的距离而减小。

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