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公开(公告)号：US11150068B2
公开(公告)日：2021-10-19
申请号：US16348403
申请日：2017-11-20
摘要： A stemming plug (60) for stemming a blast hole in a mine is disclosed. The plug has first and second wedge-shaped members (62′, 62) manufactured from a suitable plastics material. The first wedge-shaped member (62′) has a first sloping face received in sliding relationship with a matching face of the second wedge-shaped member (62) wherein, in use, when the first wedge-shaped member (62′) is positioned nearest to an explosive material in the blast hole it has a larger surface area facing the explosive material than the second wedge-shaped member (62). In use, when a Shockwave from initiation of the explosive material in the blast hole encounters the first wedge-shaped member (62′) it acts as a piston, sliding on the second wedge-shaped member (62) so that both wedge-shaped members exert diametrically opposed forces against the wall of the blast hole to lock the plug (60) in place. The two wedge-shaped members (62′, 62) may be substantially identical, thus significantly simplifying the manufacturing process.
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公开(公告)号：US09816794B1
公开(公告)日：2017-11-14
申请号：US15407837
申请日：2017-01-17
申请人： William Jordan Rice
发明人： William Jordan Rice
CPC分类号： F42D1/18
摘要： An elastomeric blasting plug and method of using the same are described. The elastomeric blasting plug may include a plurality of stacked units that taper from a base to a stem. A fuse may extend through the elastomeric blasting plug and the elastomeric blasting plug may expand radially after detonating the fuse and explosive charge.
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公开(公告)号：US20160209196A1
公开(公告)日：2016-07-21
申请号：US14915499
申请日：2014-09-11
IPC分类号： F42D1/18
CPC分类号： F42D1/18
摘要： A stemming plug (10) for stemming a blast hole in a mine, the plug (10) comprising an active wedge-shaped member (12) having a sloping face received in sliding relationship with a matching face of a passive wedge-shaped member (14). In use, the active wedge-shaped member (12) is positioned nearest to an explosive material in the blast hole and the passive wedge-shaped member (14) is positioned further from the explosive material in the blast hole. The active wedge-shaped member (12) has a friction reducing material provided on at least part of its surface to reduce the sliding resistance of the active wedge-shaped member (12) relative to the passive wedge-shaped member (14); whereby, in use, when a shockwave from initiation of the explosive material in the blast hole encounters the active wedge-shaped member (12) it acts as a piston, sliding on the passive wedge-shaped member (14) so that both wedge-shaped members exert diametrically opposed forces against a wall of the blast hole and are locked in place.
摘要翻译： 一种用于阻止矿井中的爆破孔的止杆塞（10），所述塞子（10）包括主动楔形构件（12），所述主动楔形构件具有与被动楔形构件的匹配面滑动关系的倾斜面（ 14）。 在使用中，主动楔形构件（12）被定位成最接近爆炸孔中的爆炸材料，而被动楔形构件（14）被定位成远离炸药孔中的爆炸材料。 活动的楔形构件（12）具有设置在其表面的至少一部分上的减摩材料，以减少有源楔形构件（12）相对于被动楔形构件（14）的滑动阻力; 由此，在使用中，当爆炸孔中爆炸材料起爆的冲击波遇到主动楔形构件（12）时，它作为活塞，在被动楔形构件（14）上滑动， 形状的构件对爆炸孔的壁施加径向相反的力并被锁定就位。
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公开(公告)号：US08136449B2
公开(公告)日：2012-03-20
申请号：US12781031
申请日：2010-05-17
申请人： Peter S. Escamilla
发明人： Peter S. Escamilla
摘要： An inexpensive bullet-shaped plug is shown for use in a blasting hole containing water in the bottom thereof, which plug permits dry powder to be used above the waterline rather than more expensive wet powder. After the blasting holes are drilled, if water accumulates in the bottom thereof, the bullet-shaped plug with a center weight is dropped into the hole, which bullet-shaped plug floats on the water. Small rocks are dropped on top of the bullet-shaped plug causing upper tentacles to flare out to engage the wall of the blasting hole. Dry powder is then loaded into the blasting hole on top of the bullet-shaped plug. A cap is inserted a distance below the surface of the blasting hole. Thereafter, a series of similar blasting holes are blown at one time to create debris that can be removed or further processed.
摘要翻译： 显示一种便宜的子弹塞，用于在其底部含有水的喷砂孔中，该塞子允许在水线以上使用干粉而不是更昂贵的湿粉。 在钻孔后，如果水中积聚有水分，则具有中心重量的子弹塞塞落入孔中，子弹塞在水面上。 小石头落在子弹头上，导致上部触手伸出来与爆破孔的墙壁接合。 然后将干粉装入子弹塞顶部的喷孔中。 在爆破孔的表面下方插入一个帽。 此后，一次吹入一系列类似的爆破孔，以产生可被除去或进一步加工的碎屑。
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公开(公告)号：US5803172A
公开(公告)日：1998-09-08
申请号：US613498
申请日：1996-03-11
申请人： Richard A. Rajkovich
发明人： Richard A. Rajkovich
IPC分类号： E21B33/02 , E21B33/134 , E21D5/00 , E21F17/107 , F42D1/08 , F42D1/18 , F42D1/26 , E21B33/127 , E21B33/13
CPC分类号： E21F17/107 , E21B33/02 , E21B33/134 , E21D5/00 , F42D1/08 , F42D1/18 , F42D1/26
摘要： A mine shaft closure plug which is created by a self-expanding plastic foam on a platform positioned within the mine shaft. Multiple expansion foam containers are used to provide the foam. Each expansion foam container has two closed waterproof pouches, an inner pouch and an outer pouch, each containing a separate component of the foam. The inner pouch is contained within the outer pouch. Upon breaking the inner pouch, the separate foam components combine within the outer pouch to form a complete expansion foam. The foam expands slowly enough to provide sufficient time for the container to be placed on the platform. Once in position, the expansion foam bursts the outer pouch to form the expansion foam plug above the platform. Either the platform or the expansion foam containers may be lowered into place by attached tethers.
摘要翻译： 矿井闭合塞，其由位于矿井内的平台上的自膨胀塑料泡沫产生。 使用多个膨胀泡沫容器来提供泡沫。 每个膨胀泡沫容器具有两个封闭的防水袋，内袋和外袋，每个包含泡沫的单独组分。 内袋包含在外袋内。 在破碎内袋时，单独的泡沫组分在外袋内组合以形成完全膨胀泡沫。 泡沫膨胀缓慢到足以为容器放置在平台上提供足够的时间。 一旦就位，膨胀泡沫破裂外袋，以在平台上方形成膨胀泡沫塞。 平台或膨胀泡沫容器可以通过附接的系绳降低到位。
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6.发明授权Inflatable devices for suspending explosives and stemming materials in boreholes 失效用于在钻孔中悬挂爆炸物和茎秆材料的充气装置
公开(公告)号：US5273110A
公开(公告)日：1993-12-28
申请号：US916724
申请日：1992-07-22
IPC分类号： E21B33/127 , F42D1/18
CPC分类号： E21B33/1277 , E21B33/127 , F42D1/18
摘要： Inflatable devices configured for use particularly in large diameter boreholes and in blasting applications such as vertical cratering, the invention finds utility in blast removal of earth formations wherein the inflatable devices act to suspend explosives and/or stemming materials and the like within a borehole prior to detonation of explosives within said borehole. The inflatable devices are of various shapes and comprise an inner, relatively stretchable inflatable bag enclosed by an outer, relatively non-resilient bag, the inner bag having a valve to allow a fluid such as air to be pumped thereinto with the inner bag expanding to contact inner walls of the outer bag and force the outer bag into contact with walls of the borehole to exert forces against the borehole walls and thus "plug" the borehole at a desired location along the length thereof. Explosive materials and/or stemming materials can thus be suspended at desired locations within the borehole.
摘要翻译： 本发明可用于特别是在大直径钻孔中以及在诸如垂直凹坑的喷射应用中使用的充气装置，其中可充气装置用于将钻井和/或引导材料等悬挂在钻孔内， 爆炸物在所述钻孔内爆炸。 可膨胀装置具有各种形状，并且包括由外部相对非弹性的袋包围的内部相对可拉伸的可充气袋，内袋具有阀，以允许诸如空气的流体被泵入其中，内袋膨胀至 接触外袋的内壁，并迫使外袋与钻孔的壁接触，以对井眼壁施加力，从而沿着其长度在期望的位置“插塞”钻孔。 因此，爆炸材料和/或引导材料可以悬挂在钻孔内的期望位置。
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公开(公告)号：US4132172A
公开(公告)日：1979-01-02
申请号：US787013
申请日：1977-04-13
CPC分类号： F42D1/18
摘要： A bridging plug for a circular blast hole has a relatively longer major axis and a relatively shorter minor axis. The plug is hinged to pivot about the minor axis. A tension line is secured to the minor axis for lowering the plug into an explosive placement hole. The plug pivots into an angular open position when lowered into the hole. An upward force on the tension line jams the hinged portions of the plug in a closed position to plug the hole. An explosive charge can be placed in the hole at the location defined by the closed plug.
摘要翻译： 用于圆形爆破孔的桥接塞具有相对较长的长轴和较短的短轴。 插头被铰接以绕短轴枢转。 将张力线固定到短轴上，以将塞子降低成爆炸放置孔。 当下降到孔中时，插头枢转成角度打开位置。 张力线上的向上的力将插塞的铰接部分卡在闭合位置以堵塞孔。 爆炸装药可以放置在由封闭塞所定义的位置的孔中。
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公开(公告)号：US3731833A
公开(公告)日：1973-05-08
申请号：US3731833D
申请日：1971-10-15
申请人： HYRVE A
发明人： HYRVE A
摘要： A plug for shot holes employed in seismic exploration in the form of a spiral sheet metal member with the convolutions slightly overlapping and shaped to define a frustro-conical member positioned in the shot hole with the largest convolution disposed below the central convolution.
摘要翻译： 一种用于地震勘探的用于射孔的塞子，其形式为螺旋形金属片，其卷曲稍微重叠并成形为限定位于射孔中的截头圆锥形构件，其中最大的卷积设置在中心卷积之下。
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公开(公告)号：US3112701A
公开(公告)日：1963-12-03
申请号：US4898660
申请日：1960-08-11
申请人： DOW CHEMICAL CO
发明人： GREBE CARL E
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公开(公告)号：US2129439A
公开(公告)日：1938-09-06
申请号：US75807734
申请日：1934-12-18
申请人： CARDOX CORP
发明人： WARREN NOBLE
IPC分类号： F42D1/18
CPC分类号： F42D1/18
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