With Deposition Patents (Class 209/139.1)
  • Patent number: 9970707
    Abstract: A wind permeation-type dryer capable of scraping material has a cavity and includes a heating assembly. The experiment cavity and a dropping cavity; the experiment cavity is located above the dropping cavity. The heating assembly communicates with the experiment cavity or the dropping cavity. The cavity is provided with a sieve tray assembly therein for placing materials. The assembly is provided with a rotating scraping assembly provided thereabove for scraping and flattening the materials on the sieve tray assembly. The rotating scraping assembly includes a rotating drive piece, a scraping sheet, and a rotating rod, wherein one end of the rotating rod is connected to the rotating drive piece and the other end of the rotating rod is connected to the scraping sheet adjacent to the sieve tray assembly. The rotating drive piece drives the rotating rod to rotate so as to drive the scraping sheet to rotate together therewith, such that the materials contacting the scraping sheet is scraped and flattened.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: May 15, 2018
    Assignee: HUNAN SUNDY SCIENCE AND TECHNOLOGY CO., LTD
    Inventors: Xiande Zhu, Zhonhtao Zhang, Qing Zhu
  • Patent number: 9944473
    Abstract: The present invention provides a protective wear cover which may be utilized in a metering device housing to protect the housing in an area which may be subjected to high impact by product flow. The protective wear cover may be installed inside the metering device housing at the venturi induction zone. The protective wear cover may be manufactured from a highly wear resistant material. The shape of the protective wear cover may be suited to conform to the metering device housing in the protected area to ensure a tight fit and negligible effect on air flow. This protective wear cover may therefore serve as a sacrificial barrier which prevents wear on the metering device housing and may be periodically replaced when worn. Replacing the protective wear cover negates the need to replace the whole metering device housing.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: April 17, 2018
    Assignee: CNH Industrial Canada, Ltd.
    Inventors: Ethan Curtis Stephen Bent, Martin J. Roberge, Dennis George Thompson
  • Patent number: 9821343
    Abstract: An airflow separator of the present invention includes: a first column into which gas is introduced from a lower portion and inside which a sample is made to flow; a heavy particle recovery device provided at the lower portion of the first column; and a control device configured to control a wind speed by an amount of gas to be introduced into the first column. The first column has a weak rotational airflow generation mechanism to smooth wind speed distribution in a cross-section of a tube of the first column by making it substantially W-shaped from a portion of a wall of the tube to the center of the tube to another portion of the wall of the tube. The heavy particle recovery device recovers from the sample, heavy particles falling down. The airflow separator recovers emission gas, intermediate and light particles from an upper portion of the first column.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: November 21, 2017
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Tatsuya Oki, Tomohiro Noguchi
  • Patent number: 9789492
    Abstract: Fine coal is cleaned of its mineral matter impurities and dewatered by mixing the aqueous slurry containing both with a hydrophobic liquid, subjecting the mixture to a phase separation. The resulting hydrophobic liquid phase contains coal particles free of surface moisture and droplets of water stabilized by coal particles, while the aqueous phase contains the mineral matter. By separating the entrained water droplets from the coal particles mechanically, a clean coal product of substantially reduced mineral matter and moisture contents is obtained. The spent hydrophobic liquid is separated from the clean coal product and recycled. The process can also be used to separate one type of hydrophilic particles from another by selectively hydrophobizing one.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: October 17, 2017
    Assignee: VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
    Inventors: Roe-Hoan Yoon, Mert K. Eraydin, Chad Freeland
  • Patent number: 9764362
    Abstract: The present invention comprises: a separation silo, a discharge silo, a upper sidewall of the separation silo communicated with the discharge silo through a communication port, wherein an air curtain is disposed in the communication port to isolate the silos from each other, a discharge port is disposed at the bottom of the discharge silo, a suction outlet is mounted on the top of the separation silo, a feeding port is disposed at the lower part of a sidewall of the separation silo, which is precisely facing towards the underside of the end of the belt conveyer, a vibration trough is arranged at the lower part of the separation silo, a damper plate is disposed underside thereof, an air inlet is located underbelly thereof at the bottom of the separation silo, a rejection outlet is installed at the underside end of the vibrating trough.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: September 19, 2017
    Assignees: HONGTA TOBACCO (GROUP) CO., LTD., YUXI JIXINGDEYI TRADE & INDUSTRY CO., LTD.
    Inventors: Dingrong Mou, Yi Wang, Quan Zou, Yunchuan Zhao, Ran Chen, Guangtao Yang, Xiaohua Gao, Yuan Cai, Wenhui Qi, Xiaohui Qiao, Wenpin Xiao, Yuanchun Dou, Hao Fan, Binghai Qian
  • Patent number: 9612203
    Abstract: A detection device includes a xylem fiber substrate configured with a sampling portion and a reaction portion. The reaction portion includes at least one enzyme reagent. The sampling portion absorbs a test sample. The test sample moves on the xylem fiber substrate to the reaction portion and reacts with the enzyme reagent. A manufacturing method for the detection device is also disclosed. The detection device is advantageous for easy operation, safety and rapid analysis.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: April 4, 2017
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Chen-Meng Kuan, Roger L. York, Robert S. Langer, Chao-Min Cheng
  • Patent number: 9259739
    Abstract: Provided is a vertical-type mill whereby abrasion of a hopper and accumulation of coarse particles in the hopper can both be prevented. A vertical-type mill provided with a milling mechanism for milling a material to be milled and obtaining solid particles by meshing of a milling roller or milling ball and a milling table, a classification mechanism having a classifier for classifying milled solid particles and a hopper (11) for collecting coarse particles that are classified by the classifier and dropped downward and leading the coarse particles toward the milling mechanism, a raw material feeding pipe (1) for charging the material to be milled into the milling table, and housings (43a, b), wherein the raw material feeding pipe is provided in the hopper so that the relationship 0.15?L?/L?0.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: February 16, 2016
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Takashi Aizawa, Takehiro Aoyama, Fumiya Hamanaka
  • Patent number: 9138780
    Abstract: A fractionating device comprises at least one inlet for feedstock, at least one light material outlet for a light material fraction and at least one heavy material outlet for a heavy material fraction. A flow generator for generating gas flow in the fractionating device for separating the light and heavy fractions. A curved centrifugal separating device separates the light material fraction from the gas flow. A conveyor downstream of the inlet carries the feedstock into the centrifugal separating device. At least 50% of the gas can be conducted in the fractionating device as a circulatory flow which is conducted around the conveying device.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: September 22, 2015
    Assignee: Bühler AG
    Inventors: Jürgen Moosmann, Bruno Fässler
  • Patent number: 9022222
    Abstract: A device for the selective granulometric separation of solid powdery materials using centrifugal action, capable of separating materials into a fine material fraction and a coarse material fraction, includes: a housing, a cylindrical rotor rotatable, relative to the housing, about a vertical axis inside the housing and provided with blades evenly distributed on the periphery of an upper outlet opening through which a stream of gas, laden with particles having a size lower than a predetermined particle size, is drawn, a set of vertical adjustable vanes evenly distributed about the rotor along the generatrices of a virtual cylinder and directing the gas stream towards the rotor, elements for feeding the particles between the vanes and the rotor, collecting unit lower than the rotor for collecting the unfed particles having fallen and having a size larger than the predetermined particle size.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: May 5, 2015
    Assignee: Fives FCB
    Inventor: Sebastien Devroe
  • Publication number: 20150060336
    Abstract: The invention employs a particle separation mechanism utilizing a generally circular passage using an air flow for the separation of particles. Ideally, within the passage is a conduit employing a hollow winding. Particles are introduced through an input end and drawn through the winding portion forcing, through centrifugal force, the particles to press against the exterior surface of the winding. Openings in the winding allow the particles to be flung from the winding into the circular passage either directly or via feed tubes.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 5, 2015
    Inventor: Kenneth Abbott
  • Publication number: 20150034532
    Abstract: A zig-zag classifier for separating material to be separated, for example, plastic flakes, including two zig-zag-shaped plates which are arranged oppositely vertical to each other such that a channel is formed between them, where a central vertically disposed zig-zag-shaped separation plate between the two zig-zag-shaped plates is arranged such that the channel is divided into two parallel classifier channels having substantially the same width. Also, a method for separating material to be separated, for example, plastic flakes, using the zig-zag classifier disclosed herein.
    Type: Application
    Filed: July 25, 2014
    Publication date: February 5, 2015
    Inventor: Jörg Blanke
  • Patent number: 8915373
    Abstract: A solid particle flow distribution controller includes an extension skirt configured to be mounted to a discharge skirt at a division between an upstream solid particle conveyance pipe and a plurality of downstream pipes. The extension skirt includes a plurality of circumferential segments. Each segment is movably mounted to the discharge skirt for movement in an upstream and downstream direction with respect to the discharge skirt. The segments of the extension skirt are configured and adapted for motion in the upstream and downstream direction independent of one another to extend upstream of the discharge skirt as needed to improve solid particle distribution among the downstream pipes.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: December 23, 2014
    Assignee: Babcock Power Services, Inc.
    Inventors: Qingsheng Lin, Joseph Bianca, Jilin Zhang, William Freeman, John W Rath, III
  • Patent number: 8905681
    Abstract: A pneumatic conveying process transports plastic pellets from a manufacturing source to a bulk silo for storage before being delivered to the ultimate production utilization of the plastic pellets. Multiple types or multiple sources of plastic pellets can be fed through a common pneumatic conveying conduit to respective bulk silos for temporary storage with diverter valves being utilized to direct product into and out of the common conveying conduit. Expanded elbow fittings are deployed at each directional change in the conveying lines to eliminate the creation of streamers at conduit bends. The plastic pellets are conveyed at a medium velocity between dense and dilute phases to provide a gentle conveying operation. A closed loop air supply system is used for dedusting devices providing a final removal of dust and debris from the stored product before being delivered to the ultimate utilization facility.
    Type: Grant
    Filed: July 24, 2011
    Date of Patent: December 9, 2014
    Assignee: Pelletron Corporation
    Inventors: Heinz Schneider, Paul Wagner
  • Patent number: 8875897
    Abstract: An apparatus for processing a sample including fibers and trash, having a cylinder rotating in a first direction for receiving the sample. The cylinder has a surface with rigid pins. The pins engage and retain the fibers of the sample. A collection surface receives the trash that falls from the cylinder. A counter-flow of air moves in a separation region between the cylinder and the collection surface in a direction that is substantially perpendicular to and towards the underside of the cylinder. The counter-flow of air has at each position within the separation region an air-flow velocity that is sufficient for the counter-flow of air to blow the fibers that are not originally retained by the pins up toward the cylinder and thereby engaging the fibers with the cylinder, and yet insufficient to prevent gravity from pulling the trash downward through the counter-flow of air.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: November 4, 2014
    Assignee: Uster Technologies AG
    Inventors: Youe-Tsyr Chu, Johnathan W. Craps, Weichang Zhao, Michael E. Galyon, Hossein M. Ghorashi
  • Patent number: 8857622
    Abstract: A cylindrical dedusting apparatus has an upper material infeed opening to introduce material into a frusto-conical infeed hopper centered over the tip of a conical wash deck supported over an air infeed conduit. Air is blown through slots and openings in the surface of the wash deck to separate dust and debris from the particulate material. The dust-laden air is discharged by passing between the infeed hopper and a cylindrical sleeve to enter into a circular collector for discharge from the apparatus. Flow rate of material over the wash deck is adjusted by vertically moving the infeed hopper within the sleeve relative to the wash deck, the tip serving as a stopper to define the dimension of the gap through which material flows onto the wash deck. Cleaned material passes through a lower discharge opening while dirty air is removed through a radially oriented discharge conduit from the circular collector.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: October 14, 2014
    Assignee: Pelletron Corporation
    Inventors: Heinz Schneider, Paul Wagner
  • Patent number: 8833564
    Abstract: A method of removing dust from granular polysilicon includes introducing a stream of granular polysilicon, dispersing the longitudinal stream of granular polysilicon by redirecting the stream into a radially outward flow having a circular pattern, and introducing a counter flow of gas in an opposite direction to that of the longitudinal stream of granular polysilicon to contact the radially outward flow to separate the dust from the granular polysilicon.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 16, 2014
    Assignee: SunEdison Semiconductor Limited
    Inventors: Seok-Min Yun, Seong-Su Park, Se-Myung Kim, Won-Jin Choi, Woo-Jin Yoon
  • Publication number: 20140251878
    Abstract: The present invention relates to a dynamic air separator for separating materials consisting of particles of different sizes into particle-size fractions, said separator including a rotary housing (1) and a chamber (2) for recovering the fine particles, which is coaxially arranged in alignment with the rotary housing, characterized in that: said separator includes a fan wheel (3) positioned coaxially to the chamber for recovering the fine particles; and said fan wheel is located at the end of the outlet duct (4) for purified air from the chamber for recovering the fine particles, in order to suck in said air during use and send the latter to the air-distribution chamber (5) around the rotary housing.
    Type: Application
    Filed: September 12, 2012
    Publication date: September 11, 2014
    Applicant: MAGOTTEAUX INTERNATIONAL S.A.
    Inventor: Xavier Prignon
  • Patent number: 8820535
    Abstract: Multiple embodiments of a variable flow classifier for vertical air-swept coal pulverizers are disclosed. In all embodiments, a classifier structure includes a cone with means for providing a pattern of inlet ports for introducing airborne coal to the cone wherein said means allows for selective variation in the size of the ports.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: September 2, 2014
    Inventor: Rickey E. Wark
  • Patent number: 8813967
    Abstract: A classifier [100] is disclosed that employs adjustable vanes [140] that may be interactively adjusted to change the distribution of fuel particle sizes that are passed on to a furnace. The classifier employs a frame [133] having a plurality of windows [131] each having an adjustable vane [140]. A control ring [160] is rotated with respect to the frame [133] to simultaneously move links [150] connected between the control ring [160] and the vanes [140]. This causes the vanes [140] to open or close, changing the air flow path and changing the size distribution of particles passing through the classifier [100] to the furnace. The system may include an adjustment system [260] that can automatically sense particle size to optimize several physical parameters related to particle size.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: August 26, 2014
    Assignee: ALSTOM Technology Ltd
    Inventors: Robert Plant, Mike Godwin, Christopher Daniel Curl
  • Patent number: 8800777
    Abstract: A cylindrical dedusting apparatus has an upper material infeed opening to introduce material into a frusto-conical infeed hopper centered over the tip of a conical wash deck supported over an air infeed conduit. Air is blown through slots and openings in the surface of the wash deck to separate dust and debris from the particulate material. The dust-laden air is discharged by passing between the infeed hopper and a cylindrical sleeve to enter into a circular collector for discharge from the apparatus. Flow rate of material over the wash deck is adjusted by vertically moving the infeed hopper within the sleeve relative to the wash deck to vary the dimension of the gap through which material flows onto the wash deck. A closed loop air system can be used with the cylindrical dedusting apparatus with a bleed air module that reduces air flow into the apparatus.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: August 12, 2014
    Assignee: Pelletron Corporation
    Inventors: Heinz Schneider, Paul Wagner
  • Patent number: 8770411
    Abstract: A method for the separation of fine particles from granulate-like bulk material conveyed in a pipeline as a product flow by means of a compressed air or vacuum conveyance, characterized in that the product flow is radially dispersed at the intake end of a pipe screen integrated in the pipeline in an airtight manner, and aerated there by a cleansing airflow, flowing at an angle to the direction of the dispersed product flow, in the region of a cleansing plane, which deflects the lighter particles, fibers, clusters, dust or similar items carried in the product flow from the trajectory of the heavier granulate, and conveys said into an annular sheath through which the cleansing air flows, from which they are removed by means of a separator.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: July 8, 2014
    Assignee: Zeppelin Systems GmbH
    Inventors: Guido Winkhardt, Michael Heep
  • Patent number: 8757387
    Abstract: A classification device for classifying particles by size including an upper impeller-type rotor, a first end of which is covered with a cover disc without penetration hole and a second end of which is covered with an upper cover disc with a penetration hole; and a lower impeller-type rotor, a first end of which is covered with a cover disc without penetration hole and a second end of which is covered with a lower cover disc with a penetration hole. The upper impeller-type rotor and the lower impeller-type rotor are provided so that axes thereof are coincident and the first ends face with each other forming a gap therebetween in an axial direction, and the diameters of the penetration holes of the upper cover disc and the lower cover disc are different.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: June 24, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Nobuyasu Makino, Masakazu Yashiro, Kazuo Kuratani
  • Patent number: 8668091
    Abstract: An air classifier contains a cylindrical casing provided with at an upper part thereof a feed port to feed high pressure air and a powder material, an umbrella-shaped center core in the casing, and an umbrella-shaped separator core arranged downstream of the center core in the casing and including an opening at center thereof. The air classifier has a configuration containing a dispersion chamber to disperse the powder material, being surrounded by an inner wall of the upper part casing and the center core, and a classification chamber to classify the powder material into fine and coarse powders by centrifugation, being surrounded by the center core, separator core and inner wall of the casing. In the dispersion chamber provided are a louver ring containing guide slats circularly arranged at regular intervals, and a space encircling the louver ring and serving as flow passage of the air and powder material.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: March 11, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Nobuyasu Makino, Eiichi Masushio, Fumitoshi Murakami
  • Patent number: 8627960
    Abstract: Separating a mixture comprising at least two solid materials comprises transporting the mixture into a plenum, introducing air into the plenum, removing a heavier fraction of the solid materials from the plenum, removing air having a lighter fraction of the solid materials entrained therein from the plenum, removing the lighter fraction of the solid materials from the air that is removed from the plenum, filtering the remaining air, and re-circulating the air back to the plenum. Valves at the locations where material is introduced to and removed from the system can prevent air flow therethrough while allowing the materials to pass. The air can be introduced into the plenum at an angle with respect to the pathway in which the heavier fraction of the materials falls through the plenum, thereby avoiding damage to a screen that diffuses the air being introduced into the plenum.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: January 14, 2014
    Assignee: MTD America Ltd (LLC)
    Inventors: Thomas A. Valerio, Daniel P. Creighton
  • Patent number: 8596462
    Abstract: A separator is disclosed for separating particles of at least first and second mass/size ranges from an ambient fluid (e.g. gaseous) medium in which they are present, particles of the first range being of generally larger size/mass than particles of the second range. The separator is especially designed for use in an air monitoring device which is designed for rapid detection of micro-organisms such as bacteria, viruses, pathogens and the like, and is designed to be portable so that it can be readily and rapidly deployed in both civilian and military environments and can be used indoors and outdoors; it can also be designed for personal use.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: December 3, 2013
    Assignee: BAE Systems PLC
    Inventors: Alexander Roy Parfitt, Ian Michael Sturland, Clyde Warsop, Paul James Dawson
  • Patent number: 8590709
    Abstract: Process for pneumatic classification of mixture of granular particulates by providing an apparatus, entraining mixture, reducing velocity of entraining airstream, and airwashing falling particulates of low aerodynamic support. Specific applications include a method separating mixed granular material based upon dissimilar specific gravities, useful in cleaning firearm ranges by separating lead from backstop material. Falling granular lead particulates can also be airwashed and negative pressure facilitates control of lead dust. Also disclosed are applications that pick up and clean or enrich precious metal bearing ore, and a broad range of applications from heavy mixtures, such as landscape rock, to light mixtures such as grain.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: November 26, 2013
    Inventor: Richard L. Miller
  • Publication number: 20130292304
    Abstract: A classifier [100] is disclosed that employs adjustable vanes [140] that may be interactively adjusted to change the distribution of fuel particle sizes that are passed on to a furnace. The classifier employs a frame [133] having a plurality of windows [131] each having an adjustable vane [140]. A control ring [160] is rotated with respect to the frame to simultaneously move links [150] connected between the control ring [160] and the vanes [140]. This causes the vanes [140] to open or close, changing the air flow path and changing the size distribution of particles passing through the classifier [100] to the furnace. The system may include an adjustment system [260] that can automatically sense particle size to optimize several physical parameters related to particle size.
    Type: Application
    Filed: May 2, 2012
    Publication date: November 7, 2013
    Inventors: Robert Plant, Mike Godwin, Christopher Daniel Curl
  • Patent number: 8496114
    Abstract: An apparatus for processing a sample of fibers and trash, having a cylinder for receiving the sample. Pins extend from the surface of the cylinder and retain the fibers. A knife extends along the cylinder adjacent the pins, and removes the trash that is not retained by the pins. The trash is separated from the sample along a downward direction. A counter-flow of air in an upward direction is directed towards the cylinder, where the velocity is sufficient to blow the fibers that are not originally retained by the pins up toward the cylinder, and yet is insufficient to prevent gravity from pulling the trash downward.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: July 30, 2013
    Assignee: Uster Technologies AG
    Inventors: Youe-Tsyr Chu, Johnathan W. Craps, Weichang Zhao, Michael E. Galyon, Hossein M. Ghorashi
  • Patent number: 8453846
    Abstract: A method for classifying a ground material-fluid mixture and a mill classifier improve the grinding and classification process, wherein a fine material-fluid flow leaving a dynamic classifier part with angular momentum is subjected to a swirl reduction or swirl elimination, with the aid of a guiding apparatus and a displacement body and is made uniform in a classifier outlet housing and deflected into a virtually linear flow. The fixed guiding apparatus arranged coaxially with the classifier axis in the classifier outlet housing and the displacement body may be formed as one unit, and the guide elements of the guiding apparatus may be arranged on the displacement body and extending into the vicinity of the inner wall of the classifier outlet housing.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: June 4, 2013
    Assignee: LOESCHE GmbH
    Inventors: Andre′ Baetz, Michael Keyssner
  • Patent number: 8403149
    Abstract: A cyclone classifier for classifying a particulate material, including an outer cylinder having a waistless part and an inverted-cone part vertically connected to an underside of the waistless part, and an inner cylinder which includes an exhaust opening such that the inner cylinder has a position-adjustable bottom end.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: March 26, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Takahiro Kadota, Kenichi Uehara, Noboru Kuroda, Masato Kobayashi
  • Patent number: 8353408
    Abstract: A centrifugal air classifier, in which a relation between an area S1 of a side surface of a cylinder or a truncated cone circumscribed about the rotor blades, an axis of the cylinder or a truncated cone being the rotor rotational shaft, and a calculation average value D of a diameter of a circle orthogonal to the rotor rotational shaft and circumscribed about the rotor blades is S1/D2=0.9 to 1.6, and with the S1, a relation between a cross sectional area S2 of inflow of the air for classification and the D is S2/D2=0.8 to 1.4.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: January 15, 2013
    Assignee: Taiheiyo Cement Corporation
    Inventor: Mitsuhiro Ito
  • Patent number: 8312994
    Abstract: A cylindrical dedusting apparatus has an upper material infeed opening to introduce material into a frusto-conical infeed hopper centered over the tip of a conical wash deck supported over an air infeed conduit. Air is blown through slots and openings in the surface of the wash deck to separate dust and debris from the particulate material. The dust-laden air is discharged by passing between the infeed hopper and a cylindrical sleeve to enter into a circular collector for discharge from the apparatus. Flow rate of material over the wash deck is adjusted by vertically moving the infeed hopper within the sleeve relative to the wash deck, the tip serving as a stopper to define the dimension of the gap through which material flows onto the wash deck. Cleaned material passes through a lower discharge opening while dirty air is removed through a radially oriented discharge conduit from the circular collector.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: November 20, 2012
    Assignee: Pelletron Corporation
    Inventors: Heinz Schneider, Paul Wagner
  • Patent number: 8307987
    Abstract: A separation system includes an air separator that, in one embodiment, primarily receives Municipal Solid Waste (MSW) containing a mixture of relatively light MSW recyclable materials such as plastic, paper, cardboard, plastic containers, and/or metal containers and relatively heavy MSW such as textiles, food waste, yard debris, etc. The air separator blows the relatively light MSW recyclable materials up though a chamber and onto a first conveyor while the other relatively heavy MSW material drops down a chute onto a second conveyor. A separation screen receives the relatively light MSW recyclable materials from the air separator and separates the relatively flat fiber and plastic film materials from the other paper, plastic and metal containers. In another separation stage, an electrostatic emitter is positioned adjacent to a conveyor for applying an electrostatic charge to faciliate separation of the MSW recyclable materials.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: November 13, 2012
    Assignee: Emerging Acquisitions, LLC
    Inventors: Steve Miller, Roy Miller, Dane Campbell
  • Patent number: 8281931
    Abstract: An apparatus and method for post-threshing inspection and sorting of tobacco lamina is described and which includes a separation conduit which receives a source of post-threshed tobacco lamina and other contaminants for inspection and sorting, and wherein a source of pressurized air causes the tobacco lamina to move along the separation conduit past an inspection station where it is optically inspected to identify undesirable tobacco lamina or other contaminants; and a downstream reject station is provided which responds to a sorting signal provided by the inspection station and which removes unwanted or undesirable tobacco lamina and other contaminants from an air stream so as to provide a resulting product which is substantially free from contaminants or other defects.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: October 9, 2012
    Assignee: Key Technology, Inc.
    Inventors: Harry Drewes, Wolfgang Benz, Hans Dierken, Peter Funke, Frank Schuster, Cliff J. Leidecker, J. Thomas Higgins
  • Patent number: 8267254
    Abstract: A separator for separating trash into its constituents. An inlet conduit accelerates the trash mixture into an expansion chamber allowing the lighter weight materials to move apart from heavier materials. An air fan applies air pressure to the lighter weight materials drawing off the lighter weight materials while the heavier materials fall towards a collecting conveyor by the force of gravity.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: September 18, 2012
    Assignee: Air Equipment & Engineering, Inc.
    Inventor: Donald G. Cox
  • Patent number: 8245963
    Abstract: A grain size and/or pulverulent-matter drying apparatus for the treatment of suspended mineral particles, at least 90% in weight of which have a size less than 60 mm, primarily includes a substantially vertical gas pipe with an ascending flow provided with a gas inlet, a lower opening and an upper opening between which a supply opening is also provided for insertion of matter. A portion of the matter, or so-called “fines”, can escape with the gas through the upper opening due to the bearing capacity of the ascending flow, while another coarser portion of the matter is not carried away by the gas and falls into the lower opening. The apparatus also has a device for creating turbulence, which favors the separation of the different grain sizes and the suspension of matter, provided at the internal wall of the pipe and located between the lower opening and the supply opening.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: August 21, 2012
    Assignee: FIVES FCB Societe Anonyme
    Inventors: Sébastien Devroe, Alain Cordonnier, Pascal Marechal
  • Patent number: 8231007
    Abstract: A static classifier cage is formed in upper and lower tiers of circumferentially spaced bar-shaped vanes of wear-resistant material. The lower tier is formed by and between a bottom ring and an intermediate ring. The top tier is formed by and between the intermediate ring and a topmost ring. In each tier, the lowermost ring is provided with slots to receive and act as a seat for the vertically oriented vanes while the upper ring in the tier is provided with radially outwardly opening notches into which the vanes are moved in a radial fashion. After the vanes are installed, a retainer is fastened into position to prevent the vanes from backing out of the notches.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: July 31, 2012
    Inventor: Rickey E. Wark
  • Patent number: 8177070
    Abstract: An air sieving apparatus capable of sieving particles in a particle size range below 50 ?m includes a cylindrical screening case defining an internal space and provided with a screen dividing the internal space into an upper space and a lower space. Powdered material is fed through a powdered material feed opening onto a bottom plate disposed to cover the lower open end of the screening case with gaps formed therebetween. Air in the screening case is sucked upward by a suction blower. The fed powdered material is dispersed by currents of air sucked through the gaps and the dispersed powdered material is sucked upward. Fine particles that have passed through the screen 3 flow through a fine particle recovery duct into a cyclone and a fine particle container. Coarse particles remaining in the lower space drop through the coarse particle recovery opening into a coarse particle container.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: May 15, 2012
    Assignee: Seishin Enterprise Co., Ltd.
    Inventor: Isamu Minami
  • Patent number: 8118170
    Abstract: Particulates called nanoparticles (principally having a diameter of 10 nm or less) are reliably and easily according to size with high throughput. An impactor includes a particulate size classifying chamber provided with an exhaust port for particulates, a nozzle ejecting to the inside of the particulate size classifying chamber a carrier gas containing particulates to be classified, and a trapping plate as particulate trapping unit provided in the particulate size classifying chamber and selectively trapping particulates ejected from the nozzle.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: February 21, 2012
    Assignee: Fujitsu Limited
    Inventor: Shintaro Sato
  • Patent number: 8109392
    Abstract: A concrete processing apparatus (10) including at least one chute (14) along which crushed concrete and impurities is to pass. The chute (14) is downwardly inclined and has an air outlet to which air is delivered from a blower (29). An air stream issuing from the air outlet is directed across the interior of the chute (14) to deliver impurities to an impurities outlet (23).
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: February 7, 2012
    Assignee: Airstream Recycling Forces Pty Ltd
    Inventors: Philip Andrew Byrne, John Richard Gooding
  • Patent number: 8100269
    Abstract: The powder classifying device classifies powder having a particle size distribution and collects the classified powder. The device includes a disc-like cavity to which the powder is supplied and where the supplied powder is classified, a powder supply port for supplying the powder to the cavity, guide vanes arranged so as to extend from an outer periphery of the cavity in an inner direction at a predetermined angle, a discharge unit for air streams including fine particles discharged from the cavity, a collection unit for coarse particles discharged from the cavity and air nozzles arranged below the guide vanes on an outer peripheral wall of the cavity along a tangential direction of the outer peripheral wall and blow compressed air into an inside of the cavity.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: January 24, 2012
    Assignee: Nisshin Seifun Group, Inc.
    Inventors: Kenji Taketomi, Kazumi Kozawa, Masaru Kyugo
  • Patent number: 8097059
    Abstract: An exhauster bypass system 20 receives an input flow of gases and entrained fine solid particles 15 from a pulverizer 12 and separates the input flow into a particle-deficient gas flow and a particle-laden gas flow. The particle-deficient gas flow is provided to a fan of an exhauster assembly through a central outlet, while the particle-laden gas flow is provided to the exhauster assembly away from the fan through a bypass outlet. The bypass system includes a housing that provides a chamber for separating the particles from the hot gases to produce the particle-laden gas flow and a particle-deficient gas flow. The bypass system further includes a plurality of vertically stacked louvers disposed before the central outlet for separating the particles from the input gas flow. The outlet may include a seal or bypass fan in fluid communication with the bypass outlet to provide the particle-laden gas flow to the exhauster assembly.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: January 17, 2012
    Assignee: ALSTOM Technology Ltd
    Inventor: Douglas Whitney Crafts
  • Publication number: 20110315606
    Abstract: A separator for separating trash into its constituents. An inlet conduit accelerates the trash mixture into an expansion chamber allowing the lighter weight materials to move apart from heavier materials. An air fan applies air pressure to the lighter weight materials drawing off the lighter weight materials while the heavier materials fall towards a collecting conveyor by the force of gravity.
    Type: Application
    Filed: June 24, 2010
    Publication date: December 29, 2011
    Inventor: Donald G. Cox
  • Patent number: 8051986
    Abstract: A process for the production of a range of improved biomass material products suitable for use as a fuel and which have been derived from municipal solid waste (MSW). The process comprises the steps of delivering a stream of mixed, MSW derived biomass material into a separator which operates under negative pressure enabling the biomass material to fall down the separator while inducing a sole air stream through the falling material to create a vortex of spinning material within the turbo chamber to separate out by centrifugal action selected denser components of the biomass material enabling such to continue falling to an outlet for collection while redirecting by entrainment in the air stream the remaining biomass material to a second outlet for subsequent processing or for collection.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: November 8, 2011
    Assignee: Orchid LP Limited
    Inventor: Tony Lees
  • Patent number: 8016117
    Abstract: An air classification device for separation of solids comprising an input system, a first solid separator system, an output system, and an emission containing system. The emission containing system employs supplemental air lines, a supplemental air source, and high-velocity air knives to create negative air pressure at any opening in the device. The negative air pressure induces air to move into the device and prevents polluted air from escaping the device at the openings.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: September 13, 2011
    Assignee: Mac Process Inc.
    Inventor: Michael D. Althouse
  • Patent number: 8016116
    Abstract: An open configuration is provided for the housing of a particulate material dedusting apparatus through which particulate material passes to be cleaned by air passing through wash decks to separate dirt and debris from the particulate material for discharge from the housing. The front wall and side access doors of the housing are configured to be openable for full access to the front and rear chambers. The primary wash deck is detachably mounted within the housing for removal for cleaning purposes. The generally horizontal floors of the housing are formed with a slope to allow water to drain from the housing. The open configuration of the deduster housing facilitates cleaning, draining and drying of the housing to expedite changeover from one material to another. Furthermore, the open configuration allows access for improved welding to eliminate cracks and openings in joints which accumulate dirt and debris during operation.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: September 13, 2011
    Assignee: Pelletron Corporation
    Inventor: Heinz Schneider
  • Patent number: 7971725
    Abstract: Disclosed are embodiments of apparatus for sorting particles in a fluid stream by size. In one embodiment of an apparatus for sorting such particles, a housing is provided, which defines a channel for a fluid stream containing particles. A suction channel is also provided, which terminates at a suction port. The suction port is positioned adjacent to the fluid stream. The suction channel may be configured to create a low pressure region and thereby redirect particles in the first fluid stream such that they may be sorted by size.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: July 5, 2011
    Assignee: Utah State University
    Inventors: Barton L. Smith, Zachary Earl Humes
  • Publication number: 20110132814
    Abstract: Process for pneumatic classification of mixture of granular particulates by providing an apparatus, entraining mixture, reducing velocity of entraining airstream, and airwashing falling particulates of low aerodynamic support. Specific applications include a method separating mixed granular material based upon dissimilar specific gravities, useful in cleaning firearm ranges by separating lead from backstop material. Falling granular lead particulates can also be airwashed and negative pressure facilitates control of lead dust. Also disclosed are applications that pick up and clean or enrich precious metal bearing ore, and a broad range of applications from heavy mixtures, such as landscape rock, to light mixtures such as grain.
    Type: Application
    Filed: February 10, 2011
    Publication date: June 9, 2011
    Inventor: Richard L. Miller
  • Patent number: 7942273
    Abstract: A cross-flow air separation system comprises a conveyor configured to project material out over an end of the conveyor generally along a trajectory path into a far receiving bin. An optical sensing system is configured to identify particular objects in the projected material. A first air ejection system is configured to generate a first airstream that ejects the identified objects from the trajectory path into a second near receiving bin. A second cross air current system is configured to generate a second airstream that reduces air resistance for the materials projected along the trajectory path. The second airstream reduces certain aeronautic phenomena that would cause some of the projected materials to unintentionally fall into the wrong receiving bin, thus creating a higher purity/less contaminated materiel stream into the near bin.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: May 17, 2011
    Assignee: Emerging Acquisitions, LLC
    Inventors: Dane Campbell, Roy Miller, Steve Miller
  • Patent number: 7913851
    Abstract: A separator is used in conjunction with a grinding mill which has a suction assembly, a grinding device, regulating devices and a driving device. The separator is mounted in a main body of the grinding mill on a rotating vertical separator shaft, comprising two support rings of equal sizes and shapes, mounted on the separator shaft with parallel orientations, having radial bridges with openings in between, which are surrounded by a plurality of mounting holes; and a plurality of blades, hingedly mounted on the mounting holes by vertical rods, for separating ground particles according to size.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: March 29, 2011
    Inventor: Jin-Hong Chang