Including Coal Patents (Class 241/24.24)
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Publication number: 20140263771Abstract: A micrometer-sized or nanometer-sized coal material is produced using a method of providing a controlled batch of micrometer-sized or nanometer-sized coal material. This method includes: (a) specifying at least one desired physical and/or chemical parameter of the controlled batch of coal material; (b) specifying the desired range of the physical and/or chemical parameter in the controlled batch of coal material; (c) obtaining a feedstock batch of coal material; and (d) processing a feedstock batch of coal material to obtain the controlled batch of coal material having the at least one specified physical and/or chemical parameter in the specified range thereof.Type: ApplicationFiled: January 20, 2014Publication date: September 18, 2014Inventors: Kevin C. Kerns, James R. Pagnotti
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Patent number: 8739975Abstract: An integrated drying and dry-separating apparatus for upgrading raw coal includes a coal supply system, a hot air system, a drying system, a dedusting and exhausting system, and a dry-separating system. The coal supply system conveys raw coal to the hot air system and the drying system by a raw coal conveyer respectively. The hot air system is a heat source of the drying system. The drying system is used for drying and dewatering the raw coal. The dedusting and exhausting system is consisted of a deduster and an exhaust fan, and establishes a connection between the drying system and the dry-separating system. The dry-separating system includes a dry separator, a circulating fan, and a cyclone deduster, which is used for separating dried raw coal into fancy coal, middling coal and coal gangue. A method for dry-separating and drying raw coal using the apparatus is also provided.Type: GrantFiled: November 19, 2010Date of Patent: June 3, 2014Inventor: Gongmin Li
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Patent number: 8662427Abstract: A printing ink includes a micrometer-sized or nanometer-sized coal material. The micrometer-sized or nanometer-sized coal material is produced using a method of providing a controlled batch of micrometer-sized or nanometer-sized coal material. This method includes the steps of: (a) specifying at least one desired physical and/or chemical parameter of the controlled batch of coal material; (b) specifying the desired range of the physical and/or chemical parameter in the controlled batch of coal material; (c) obtaining a feedstock batch of coal material; and (d) processing a feedstock batch of coal material to obtain the controlled batch of coal material having the at least one specified physical and/or chemical parameter in the specified range thereof. In a further step, the controlled batch of coal material can be activated.Type: GrantFiled: September 14, 2012Date of Patent: March 4, 2014Inventors: Kevin C. Kerns, James R. Pagnotti
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Patent number: 8662426Abstract: The invention relates to a process for processing brown coal for combustion and/or gasification for the purpose of power generation, wherein the brown coal moist from the pit is firstly subjected to preliminary crushing and is subsequently comminuted. The milled coal is then fed to drying in a fluidized-bed dryer. The process is characterized in that the milling apparatus is followed by a control sieving facility, with the sieve opening being selected so that essentially 100% of the brown coal passes the sieve.Type: GrantFiled: November 24, 2008Date of Patent: March 4, 2014Assignee: RWE Power AktiengessellschaftInventor: Hans-Joachim Klutz
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Patent number: 8651032Abstract: To provide a classification device in which product fine powder little in mixture ratio of coarse particles can be obtained. A classification device characterized in that a setting pitch P between stationary fins 13 and a width L of each stationary fin 13 are combined so that a value of P/L is in a range between 0.042×(??50)+0.64 and 0.019×(??50)+0.22 in 50°???70° when ? is an inclination angle of each stationary fin 13, P is the setting pitch, and L is the width in a direction of circulation of particles.Type: GrantFiled: September 26, 2008Date of Patent: February 18, 2014Assignee: Babcock-Hitachi Kabushiki KaishaInventors: Yoshinori Otani, Hiroaki Kanemoto, Shinichiro Nomura, Hideo Mitsui, Yutaka Takeno
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Patent number: 8517290Abstract: A process and installation for the milling-drying and storage of brown coal. Brown coal is milled to form brown coal dust in a low-oxygen atmosphere at temperatures which are higher compared to the prior art. Then, the brown coal dust is washed with low-oxygen, dry second conveying gas and stored in a silo in a low-oxygen, dry atmosphere at a temperature of above 60° C. The installation is designed to carry out this process and comprises, for the process steps mentioned above, a mill, a dust washing installation and a silo.Type: GrantFiled: January 12, 2012Date of Patent: August 27, 2013Assignee: Claudius Peters Projects GmbHInventor: Jens-Peter Thiel
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Patent number: 8440298Abstract: The present invention provides a product obtained by a method of dry milling a mineral material in at least one milling unit: (i) in the presence of at least one polyalkylene glycol polymer having monomer units forming a backbone, where at least 90% of the monomer units forming the backbone of the polymer are constituted by ethylene oxide, propylene oxide or their mixtures, and where the polymer has a molecular weight of at least equal to 400 g/mole, and (ii) in a quantity of water that is less than 10% in dry weight of the material in the milling unit.Type: GrantFiled: August 18, 2011Date of Patent: May 14, 2013Assignees: Omya Development AG, Coatex S.A.S.Inventors: Patrick A. C. Gane, Matthias Buri, René Vinzenz Blum, Jacques Mongoin
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Patent number: 8348184Abstract: A waterless method of processing coal to remove impurities therefrom includes drying a batch of coal to remove moisture therefrom, pulverizing the coal into individual coal particles to liberate impurity particles from the coal and without substantially reducing the size of the impurity particles, and separating the impurity particles and pulverized coal particles into respective product streams via air classification. The dryer includes a plurality of rotating paddles, and an air stream forces the coal through the plurality of rotating paddles to pulverize the coal into individual particles and liberate the impurities.Type: GrantFiled: March 2, 2012Date of Patent: January 8, 2013Assignee: Robbins & Avant Mineral Ventures, LLCInventors: David M. Avant, Jr., Riley D. Robbins
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Patent number: 8157193Abstract: A waterless method of processing coal to remove impurities therefrom includes drying a batch of coal to remove moisture therefrom, pulverizing the coal into individual coal particles to liberate impurity particles from the coal and without substantially reducing the size of the impurity particles, and separating the impurity particles and pulverized coal particles into respective product streams via air classification. The dryer includes a plurality of rotating paddles, and an air stream forces the coal through the plurality of rotating paddles to pulverize the coal into individual particles and liberate the impurities.Type: GrantFiled: January 12, 2010Date of Patent: April 17, 2012Assignee: Robbins & Avant Mineral Ventures, LLCInventors: David M. Avant, Jr., Riley D. Robbins
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Publication number: 20100176226Abstract: A waterless method of processing coal to remove impurities therefrom includes drying a batch of coal to remove moisture therefrom, pulverizing the coal into individual coal particles to liberate impurity particles from the coal and without substantially reducing the size of the impurity particles, and separating the impurity particles and pulverized coal particles into respective product streams via air classification. The dryer includes a plurality of rotating paddles, and an air stream forces the coal through the plurality of rotating paddles to pulverize the coal into individual particles and liberate the impurities.Type: ApplicationFiled: January 12, 2010Publication date: July 15, 2010Inventors: David M. Avant, JR., Riley D. Robbins
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Patent number: 7124968Abstract: An apparatus for sorting particles composed of a mixture of particles with differing physical and chemical characteristics.Type: GrantFiled: November 12, 2004Date of Patent: October 24, 2006Assignee: EXPORTech Company, Inc.Inventors: Robin R. Oder, Russell E. Jamison