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公开(公告)号：US20150008369A1
公开(公告)日：2015-01-08
申请号：US14281610
申请日：2014-05-19
IPC分类号： E21F5/12
CPC分类号： E21F5/12 , C01F11/185 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/60 , C09C1/024 , C09C3/08 , C09K3/18 , C09K3/22
摘要： A heterogeneous composition for use as rock dust is disclosed. The heterogeneous composition includes a fine, wet ground inorganic particulate material treated with at least one fatty acid, a salt thereof, or an ester thereof, and a coarse, untreated, dry ground inorganic particulate material. Also disclosed is a heterogeneous composition including coal dust and mine rock dust including a fine, wet ground inorganic particulate material treated with at least one fatty acid, a salt thereof, or an ester thereof, and a coarse, untreated, dry ground inorganic particulate material. The amount of mine rock dust may be sufficient to render the coal dust explosively inert. The fine, treated, wet ground inorganic particulate material may be calcium carbonate. The coarse, untreated inorganic particulate material may be calcium carbonate. The fatty acid may be stearic acid.
摘要翻译： 公开了一种用作岩屑的异质组合物。 非均相组合物包括用至少一种脂肪酸，其盐或其酯处理的细的，湿磨的无机颗粒材料，以及粗的，未处理的干燥研磨的无机颗粒材料。 还公开了一种异质组合物，其包括煤粉和矿石粉尘，包括用至少一种脂肪酸，其盐或其酯处理的细的，湿磨的无机颗粒材料，以及粗，未处理的干磨的无机颗粒材料 。 矿山灰尘的数量可能足以使煤尘爆炸成为惰性。 精细处理的湿磨的无机颗粒材料可以是碳酸钙。 粗的未处理的无机颗粒材料可以是碳酸钙。 脂肪酸可以是硬脂酸。
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公开(公告)号：US20200254291A1
公开(公告)日：2020-08-13
申请号：US16862450
申请日：2020-04-29
发明人： Yen-Yau H. CHAO
摘要： Provided is a foamed dust composition and a method of using the foamed dust composition. The foamed dust composition contains an aqueous foam comprising a foaming agent, a foam stabilizer, water, and a rock dust. The foamed dust composition is sprayed onto coal mine surfaces to prevent coal dust explosion in the event of a fire.
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公开(公告)号：US09458718B2
公开(公告)日：2016-10-04
申请号：US14211166
申请日：2014-03-14
发明人： Shannon N. Wright
CPC分类号： E21F5/12
摘要： This technology relates to a method of forming an aerated material for application to the surfaces of mines to minimize dust formation. The aerated material is comprised of rock dust and a foaming agent which is mixed with water, and when properly mixed and applied to a mine surface, creates a dry cellular structure with little caking.
摘要翻译： 该技术涉及一种形成用于矿山表面的充气材料的方法，以使粉尘形成最小化。 充气材料由岩石粉尘和与水混合的发泡剂组成，当适当混合并施加到矿山表面时，产生结块少的干燥的细胞结构。
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公开(公告)号：US11359491B1
公开(公告)日：2022-06-14
申请号：US17241152
申请日：2021-04-27
申请人： E. Dillon & Company
发明人： Mike Miller , Thomas Harmon Harris
摘要： A mine safety dust exhibiting improved dispersion in water. The rock dust includes dolomitic limestone particles which, when mixed at the mine site to form a slurry, stay in suspension during intermittent operation of spray machinery and with a reduced need for continuous mixing. The rock dust composition includes an inorganic salt that acts as a dispersant to improve dispersion of the rock dust in water and further acts as a deflocculant to keep the dust particles in suspension in the resultant slurry.
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公开(公告)号：US11021956B1
公开(公告)日：2021-06-01
申请号：US16456710
申请日：2019-06-28
申请人： E. Dillon & Company
发明人： Mike Miller , Thomas Harmon Harris
摘要： A mine safety dust exhibiting improved dispersion in water. The rock dust includes dolomitic limestone particles which, when mixed at the mine site to form a slurry, stay in suspension during intermittent operation of spray machinery and with a reduced need for continuous mixing. The rock dust composition includes an inorganic salt that acts as a dispersant to improve dispersion of the rock dust in water and further acts as a deflocculant to keep the dust particles in suspension in the resultant slurry.
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公开(公告)号：US09228435B2
公开(公告)日：2016-01-05
申请号：US14062148
申请日：2013-10-24
申请人： Rusmar Incorporated
发明人： Ricky VanBuren
CPC分类号： E21F5/10
摘要： Rock dust is applied to a mine wall for mine fire suppression in combination with a chemical foam, by generating the foam from air and a foamable liquid in a mixing chamber, and delivering the foam through one flexible conduit and a suspension of rock dust in water through another flexible conduit to a combiner, and causing the combined foam, rock dust and water to pass through a flexible hose to a delivery nozzle from which it is applied to a mine wall.
摘要翻译： 通过在空气中产生泡沫和混合室中的可发泡液体将岩屑施加到矿井壁上以进行矿山灭火，并将泡沫通过一个柔性管道和岩石粉尘悬浮在水中 通过另一个柔性导管连接到组合器，并使组合的泡沫，岩屑和水通过柔性软管通过其被施加到矿井的输送喷嘴。
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公开(公告)号：US11421531B2
公开(公告)日：2022-08-23
申请号：US16703929
申请日：2019-12-05
申请人： Imerys USA, Inc.
摘要： A method for using a composition for use as rock dust in an underground mine is disclosed. The composition includes a fine, wet ground inorganic particulate material treated with at least one hydrophobic treatment, and a coarse, untreated, dry ground inorganic particulate material. Also disclosed is a composition including coal dust and mine rock dust including a fine, wet ground inorganic particulate material treated with at least one hydrophobic treatment, and a coarse, untreated, dry ground inorganic particulate material. The amount of mine rock dust may be sufficient to render the coal dust explosively inert according to at least one of a 20-L explosibility test or an ASTM E1515 explosibility test. The fine, wet ground inorganic particulate material may be calcium carbonate. The coarse, untreated inorganic particulate material may be calcium carbonate. The fatty acid may be stearic acid.
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公开(公告)号：US10533417B2
公开(公告)日：2020-01-14
申请号：US15432789
申请日：2017-02-14
申请人： Imerys USA, Inc.
摘要： A method for using a composition for use as rock dust in an underground mine is disclosed. The composition includes a fine, wet ground inorganic particulate material treated with at least one hydrophobic treatment, and a coarse, untreated, dry ground inorganic particulate material. Also disclosed is a composition including coal dust and mine rock dust including a fine, wet ground inorganic particulate material treated with at least one hydrophobic treatment, and a coarse, untreated, dry ground inorganic particulate material. The amount of mine rock dust may be sufficient to render the coal dust explosively inert according to at least one of a 20-L explosibility test or an ASTM E1515 explosibility test. The fine, wet ground inorganic particulate material may be calcium carbonate. The coarse, untreated inorganic particulate material may be calcium carbonate. The fatty acid may be stearic acid.
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公开(公告)号：US20180291246A1
公开(公告)日：2018-10-11
申请号：US15531167
申请日：2015-10-29
摘要： The proposed invention is a process for obtaining the ore dust suppressant resin with the chemical recycling of Poly thermoplastic polymer (Ethylene Terephthalate) or PET. It is proposed a method for obtaining the resin by using the depolymerization reaction methodology of the Poly polymer (Ethylene Terephthalate) obtained from post-consumption PET bottles, in the presence of cationic surfactant hexadeciltrimetrilamonio bromide (CTAB).The resin is thus obtained being subsequently added to the same PVP K-90 (Polyvinylpyrrolidone) as increasing load on the final viscosity of the resin. Other additives such as lignin extracted from plants such as leaves and tree branches may also be added, in this case, incorporated to make the resin more hydrophobic.
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公开(公告)号：US09631492B2
公开(公告)日：2017-04-25
申请号：US14281610
申请日：2014-05-19
CPC分类号： E21F5/12 , C01F11/185 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/60 , C09C1/024 , C09C3/08 , C09K3/18 , C09K3/22
摘要： A heterogeneous composition for use as rock dust is disclosed. The heterogeneous composition includes a fine, wet ground inorganic particulate material treated with at least one fatty acid, a salt thereof, or an ester thereof, and a coarse, untreated, dry ground inorganic particulate material. Also disclosed is a heterogeneous composition including coal dust and mine rock dust including a fine, wet ground inorganic particulate material treated with at least one fatty acid, a salt thereof, or an ester thereof, and a coarse, untreated, dry ground inorganic particulate material. The amount of mine rock dust may be sufficient to render the coal dust explosively inert. The fine, treated, wet ground inorganic particulate material may be calcium carbonate. The coarse, untreated inorganic particulate material may be calcium carbonate. The fatty acid may be stearic acid.
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