For Liquid Refuse Patents (Class 110/238)
  • Patent number: 10785860
    Abstract: A dual frequency power-driven inductively coupled plasma torch according to an exemplary embodiment of the present invention includes: a hollow confinement tube provided with a space in which thermal plasma is formed; an induction coil that surrounds the confinement tube; and a power supply source that supplies power to the induction coil, wherein the power supply source may supply at least two powers having different frequencies to the induction coil.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: September 22, 2020
    Assignees: KOREA INSTITUTE OF MACHINERY & MATERIALS, INDUSTRIAL COOPERATION FOUNDATION OF CHONBUK NATIONAL UNIVERSITY
    Inventors: Hee-Chang Park, Dong-Won Yun, Jun-Ho Seo, Junseok Nam, Mi-Yeon Lee, Jeong-Soo Kim
  • Patent number: 10443356
    Abstract: A system and apparatus for treating and disposing of produced water in conjunction with flared gas, thereby avoiding problems associated with injecting produced water back into subsurface strata. The system is installed at or near the wellhead where produced water being treated is at a higher temperatures. Produced water is treated in a scrubber with heat applied through a flare gas field burner, which uses field gas from oilfield operations. A wet scrubber unit with scrubber packing is used to clean emissions. A produced water pump is used to circulate produced water, and pump produced water through spray nozzles in the scrubber unit for use as the wet scrubbing agent. As produced water evaporates, evaporated salts and solids are continuously removed from the evaporator/scrubber unit by appropriate means, such as an auger system. The evaporated salts and solids are then treated via chemical stabilization in a mixing system with chemical reagents to prevent the residual form from being hazardous.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: October 15, 2019
    Assignee: HYDROZONIX, LLC
    Inventor: Mark Patton
  • Patent number: 9981812
    Abstract: An automated method of unloading a shipping vessel includes: receiving a shipping container from the vessel, the container including multiple connectors; retrieving a pallet able to store the connectors, where the pallet includes multiple receptacles, each receptacle able to accommodate one connector; detaching the connectors from the container; transferring the connectors to the pallet; releasing the container; and transferring a subset of the connectors from the pallet to at least one bin that is able to accommodate multiple connectors.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: May 29, 2018
    Inventors: Steve Foldesi, William Hawke, Kyoung Shik Min
  • Patent number: 9649592
    Abstract: A plasma abatement process for abating effluent containing compounds from a processing chamber is described. A plasma abatement process takes gaseous foreline effluent from a processing chamber, such as a deposition chamber, and reacts the effluent within a plasma chamber placed in the foreline path. The plasma dissociates the compounds within the effluent, converting the effluent into more benign compounds. Abating reagents may assist in the abating of the compounds. The abatement process may be a volatizing or a condensing abatement process. Representative volatilizing abating reagents include, for example, CH4, H2O, H2, NF3, SF6, F2, HCl, HF, Cl2, and HBr. Representative condensing abating reagents include, for example, H2, H2O, O2, N2, O3, CO, CO2, NH3, N2O, CH4, and combinations thereof.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: May 16, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Michael S. Cox, Monique McIntosh, Colin John Dickinson, Paul E. Fisher, Yutaka Tanaka, Zheng Yuan
  • Patent number: 9376334
    Abstract: A method for treating a liquid solution S1 is provided. The method may comprise a step of injecting said liquid solution S1 into a plasma immersed in a second liquid solution S2 separate from said liquid solution S1. In addition, a device capable of being applied in the context of such a method is also provided.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: June 28, 2016
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Florent Lemont, Christophe Lafon, Jean-Marie Baronnet, Nicolas Boudesocque
  • Patent number: 9180422
    Abstract: An isolator includes: a contamination-target chamber including an inlet and outlet having intake and discharge filters, respectively; and a decontaminating-gas-supply unit to supply decontaminating gas into the chamber without flowing through the filters, the unit including: an atomizer including first and second ports and a nozzle; a first pipe having one and the other ends connected to a compressor and the first port, respectively; a second pipe having one end connected to the second port and the other end open; a reservoir; a pump to take in decontamination solution from the reservoir; and a third pipe, having one end connected to the pump, thorough which the solution flows, the atomizer configured to, when injecting from the nozzle intake air from the first port, suction the solution, via the second pipe, by negative pressure produced in the second port; and inject the solution in an atomized state, mixing it with air.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: November 10, 2015
    Assignee: PANASONIC HEALTHCARE HOLDINGS CO., LTD.
    Inventors: Yasuhiko Yokoi, Koichi Kobayashi, Hiroshi Yamamoto
  • Patent number: 9133430
    Abstract: An apparatus for production of a biogas by anaerobic digestion of organic material, the apparatus comprising: a digester chamber defining: a gas generating zone and a gas collecting zone. A biogas outlet is defined in the gas collecting zone, and one or more nozzles is/are arranged to spray a gas cooling liquid into the gas accommodated in the gas collecting zone so as to cool the gas. A collecting member is arranged in the gas collecting zone to collect the gas cooling liquid when sprayed from the one or more nozzles towards the collecting member so as to prevent the gas cooling liquid from entering the organic material. The collecting member is arranged to cause the collected gas cooling liquid to flow into a liquid based safety valve.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: September 15, 2015
    Assignee: Veolia Water Solutions and Technologies Support
    Inventors: Soren J. Hojsgaard, Bente E. Nielsen, Per Koefoed-Hansen
  • Patent number: 9102951
    Abstract: The present invention relates to a process for generating steam and recovering salts during a lignocellulosic conversion process. The process comprises de-salting a still bottoms stream; incinerating a stream comprising lignin and the de-salted still bottoms stream in an incinerator; and utilizing the heat generated from said incinerating to produce steam. Further provided is a process that comprises feeding a concentrated still bottoms stream to a crystallizer and forming insoluble solids therein comprising salts. Furthermore, the invention relates to a process for recovering salts from a lignocellulosic conversion process, which process comprises the addition of solvent to a still bottoms stream to precipitate salts therefrom. Also provided is a still bottoms composition, a fertilizer product and a composition for incineration.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: August 11, 2015
    Assignee: IOGEN ENERGY CORPORATION
    Inventors: Robert Griffin, Ziyad Rahme, Patricia Dawn MacLean, Brian Foody
  • Patent number: 9033698
    Abstract: A system and techniques for waste oil combustion are provided. The techniques include straining waste oil, separating contaminants from the strained waste oil to produce segregated layers of waste oil, selectively drawing a segregated layer of the waste oil, entraining the drawn waste oil to a burner for combustion, and regulating flow rate to produce a controllable amount of heat output. The system includes a container for straining waste oil, a storage drum for separating contaminants from the strained waste oil via gravity separation to produce segregated waste oil, an oil uptake channel for entraining the waste oil from the storage drum, a fuel regulator for controlling rate of flow of the waste oil from the storage drum to a burner head via the oil uptake channel, and a burner head control for repositioning a burner head under the input stream to produce a controllable amount of heat output.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: May 19, 2015
    Inventor: Thomas S. Leue
  • Patent number: 8973285
    Abstract: The present invention provides grain-drying facilities which can effectively use the heat energy of a biomass combustion hot-air that has been generated in a biomass combustion furnace.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: March 10, 2015
    Assignee: Satake Corporation
    Inventor: Hirota Fujitomo
  • Patent number: 8881662
    Abstract: An inside of an incinerator body into which sludge is fed is divided into a lower portion, a portion above the lower portion, and a top portion in a height direction. The lower portion serves as a pyrolysis zone for supplying fluidizing air having an air ratio of 1.1 or less together with fuel to thermally decompose the sludge while fluidizing the sludge. The portion above the lower portion serves as an over bed combustion zone for supplying only combustion air having an air ratio of 0.1 to 0.3 to form a local high temperature place to decompose N2O. The top portion serves as a perfect combustion zone for perfectly combusting unburned contents. The quantity of N2O generated during sludge incineration can be drastically reduced while maintaining the use quantity of auxiliary fuel at the same level as that of a conventional incineration method.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: November 11, 2014
    Assignee: Metawater Co., Ltd.
    Inventors: Masaki Yamada, Tetsuya Yanase, Masayuki Yamamoto, Tomoyuki Takeshita, Kosuke Kamiya
  • Patent number: 8845323
    Abstract: The invention comprises a method and apparatus for burning combustible fluids, such as biofuel byproducts and feedstocks, which are difficult to burn in a stable and clean manner. The method includes preheating the combustion zone prior to initiating flow of the combustible fluid and maintaining a minimum oxygen concentration in the oxidant gas.
    Type: Grant
    Filed: March 2, 2008
    Date of Patent: September 30, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Leighta M. Johnson, Matthew J. Watson, Aleksandar G. Slavejkov
  • Patent number: 8808461
    Abstract: A method for emptying a furnace floor from smelt in a black liquor recovery boiler when the black liquor recovery boiler is being shut down. The emptying can be started while smelt is still flowing in smelt spouts. The floor is emptied by sucking smelt from the furnace with a smelt eductor. A device for removing smelt and wash water from a furnace of a black liquor recovery boiler by means of suction. Negative pressure is generated in the device by conducting pressurized gas into a suction pipe of an eductor so that preheated pressurized gas is discharged in the discharge direction of smelt and wash water.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: August 19, 2014
    Assignee: BOILDEC Oy
    Inventor: Timo Karjunen
  • Publication number: 20140182296
    Abstract: The disclosure is concerned with generating power using new organic fuel that is generated at wastewater purification plants in the form of sewage sludge with moisture content up to 90-95%. The world supplies this new orgabic fuel in very high quantites that are estimated to be more than 25-40 gr of dry mass/man/day. The new composite fuel comprises a coal suspension with the new dispersed medium, which is the liquid sewage sludge. The composite fuel is introduced into a furnace for combustion and generating power.
    Type: Application
    Filed: May 30, 2007
    Publication date: July 3, 2014
    Inventor: Tomer Zimmels
  • Patent number: 8640634
    Abstract: An arrangement is disclosed for supplying an air jet form to the furnace of a recovery boiler, where the furnace has a front wall, a rear wall and side walls. Black liquor spraying devices are disposed on the furnace walls on one or several levels of the furnace. A plurality of air ports are located at several horizontal elevations for introducing air into the furnace from an air supply. In the arrangement for the secondary air flows, at least two horizontal air levels at different elevations are arranged above the lower primary levels and below the black liquor sprayer. Secondary air is supplied from two opposite walls. The secondary air ports on each of said first and second horizontal elevations comprise air ports for each horizontal elevation that project a pattern of large air jets into the furnace from said opposite walls and said secondary air ports further comprise a plurality of secondary air ports on at least one of the elevations that project smaller air jets into the furnace.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: February 4, 2014
    Assignee: Andritz Oy
    Inventors: Kari Saviharju, Jorma Simonen, Raimo Paju, Jukka Savolainen, Esa Vihavainen
  • Patent number: 8607718
    Abstract: A combustion air system particularly useful for Kraft process recovery boilers or soda process recovery boilers has a level of liquor air ports located above the black liquor guns, and multiple levels of tertiary air formed by substantially vertically aligned tertiary air ports located above the black liquor guns. The liquor air ports and the tertiary air ports are on the same opposing walls of the furnace and are substantially vertically aligned with air ports in the same wall at different levels. The liquor air ports are located just above the black liquor guns, within a range of about ½ foot to about four feet. The tertiary air ports are laterally offset with respect to the tertiary air ports on the opposing wall of the furnace.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: December 17, 2013
    Assignee: Babcock & Wilcox Power Generation Group, Inc.
    Inventor: Richard A. Wessel
  • Publication number: 20130206046
    Abstract: An improved oil preheater assembly for a waste oil burner that significantly reduces the labor time required to perform routine maintenance. This is accomplished by incorporating a removable cover to directly access the heated oil passages for cleaning thereby providing a simplified method of access to the areas most often requiring routine maintenance. Additionally this design provides an improved electrical control system which significantly reduces electrical energy consumption and the formation of oil carbonization when oil burner heat output is not required. Additionally this design incorporates a nozzle cleaning system for a low pressure siphoning type of discharge nozzle which can remove carbonization and other nozzle contamination and obstructions without the disassembly of components.
    Type: Application
    Filed: February 13, 2012
    Publication date: August 15, 2013
    Inventor: Daniel B. Jones
  • Patent number: 8443740
    Abstract: A cyclonic incinerator includes a cylindrical outer burn chamber having a defining wall, a central axis, a first end, a second end, and a forced air opening extending through the wall between the first end and the second end. A forced air manifold is provided which is adapted to direct forced air into the forced air opening of the outer burn chamber to create a cyclonic air flow about the central axis of the outer burn chamber. A cylindrical inner burn chamber is concentrically disposed within the outer burn chamber. The inner burn chamber has a defining wall, a first end and a second end. The first end of the inner burn chamber has an exhaust gas opening. The second end of the inner burn chamber is in communication with the outer burn chamber. A gas inlet is positioned at the first end of the outer burn chamber.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: May 21, 2013
    Assignee: Maralto Environmental Technologies Ltd.
    Inventor: Marlin Romeo
  • Patent number: 8444411
    Abstract: An incinerator (20) for disposing of boil-off gas on an LNG carrier comprises a combustion section (40) wherein the boil-off gas admitted at (42) is burned in the presence of combustion air admitted at (44), producing a flame (46) and combustion products (C). Dilution air (A) is delivered into the combustion section (40) and mixed with the combustion products (C) to produce a diluted mixture (M). The combustion section (40) has an inner wall (48) and an outer wall (50) together defining a first passage (52) through which the dilution air (A) is passed before being mixed with the combustion products (C), whereby the dilution air A cools the combustion section (40). The dilution air A in the first passage (52) also provides a thermally insulting layer limiting radial heat transmission from the combustion section (40). A proportion (AP) of the dilution air is mixed directly with the combustion products (C).
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: May 21, 2013
    Inventors: Simon Mark O'Connor, Richard James Price, Nigel Peter Webley, Mark Boss
  • Patent number: 8381667
    Abstract: An adjustable fuel nozzle assembly [1000] for spraying fuel into a recovery boiler [13] includes at least two fuel nozzle assemblies [1100, 1300]. An adjustment section [1500] adapted to adjust the relative orientation between the nozzle assemblies [1100, 1300] and hold them at the desired orientation relative to each other to create a desired spray pattern. The adjustment section [1500] also adapted to simultaneously aim several fuel nozzles at a target location, retaining their relative orientation between the nozzle assemblies [1100, 1300]. This allows the nozzle assemblies [1100, 1300] to spray fuel with a desired spray pattern to a desired location to properly control combustion of the recovery boiler [13], thereby increasing stability of combustion minimizing the creation of pollutants such as NOx gases.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: February 26, 2013
    Assignee: ALSTOM Technology Ltd
    Inventor: Steven R. Gibowski
  • Publication number: 20130000533
    Abstract: A system and techniques for waste oil combustion are provided. The techniques include straining waste oil, separating contaminants from the strained waste oil to produce segregated layers of waste oil, selectively drawing a segregated layer of the waste oil, entraining the drawn waste oil to a burner for combustion, and regulating flow rate to produce a controllable amount of heat output. The system includes a container for straining waste oil, a storage drum for separating contaminants from the strained waste oil via gravity separation to produce segregated waste oil, an oil uptake channel for entraining the waste oil from the storage drum, a fuel regulator for controlling rate of flow of the waste oil from the storage drum to a burner head via the oil uptake channel, and a burner head control for repositioning a burner head under the input stream to produce a controllable amount of heat output.
    Type: Application
    Filed: February 6, 2012
    Publication date: January 3, 2013
    Inventor: Thomas S. Leue
  • Publication number: 20120200092
    Abstract: The present invention relates to methods and systems for processing sewage sludge using a gasification process. The gasification process takes place at high temperatures in an oxygen-starved environment, which enables carbon-containing materials in the sewage sludge to chemically react under the preferred temperature and oxygen levels, resulting in the formation of usable products, including ash, electricity, and syngas—all of which are generally environmentally benign.
    Type: Application
    Filed: April 20, 2012
    Publication date: August 9, 2012
    Applicant: WasteDry, LLC
    Inventors: Bruce Johnson, Nina Cunningham
  • Publication number: 20120125241
    Abstract: A waste oil furnace for burning waste oil may include a fire container to burn the waste oil, an ignition burner to ignite the oil and an afterburner being connected to the flame container to burn the waste oil. The afterburner may include a venturi, and the afterburner may include a induction air port. The ignition burner includes an oil nozzle and the ignition burner may include nickel cadmium (CAD) cell. The ignition burner may include an ignition electrode, and the ignition burner may include a fuel ignition nozzle.
    Type: Application
    Filed: May 20, 2011
    Publication date: May 24, 2012
    Inventor: Phil See
  • Patent number: 8152965
    Abstract: The invention is related to a method for emptying a furnace floor in a soda recovery boiler when the soda recovery boiler is being shut down. The emptying may be started while smelt is still flowing in smelt spouts. The floor is emptied by sucking smelt from the furnace with a smelt eductor. The invention is also related to a device for removing smelt and wash water from a furnace of a soda recovery boiler by means of suction. Negative pressure is generated in the device by conducting pressurized gas into a suction pipe of the eductor so that the pressurized gas is discharged in the discharge direction of smelt and wash water.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: April 10, 2012
    Assignee: Boildec Oy
    Inventor: Timo Karjunen
  • Patent number: 8141501
    Abstract: A wet sludge disposal facility is capable of smoothly transferring wet sludge to a kiln inlet part of a dry process kiln by a low feeding pressure and without substantially increasing the moisture content in the wet sludge. The disposal facility is used in a cement clinker manufacturing facility having a preheater for preheating a cement raw material, and a dry process kiln connected to the preheater at the kiln inlet part of the dry process kiln. Wet sludge is transferred to the side of the kiln inlet part by feeding water between the wet sludge and the inner wall surface of the pipe by a water injection apparatus in at least one place between the pressure feed pump and the kiln inlet part.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: March 27, 2012
    Assignee: Mitsubishi Materials Corporation
    Inventors: Koji Nagamizu, Akihisa Koga, Hiroyuki Terunuma, Yusuke Nakai, Koyuru Horiike, Masafumi Ito
  • Patent number: 8127697
    Abstract: A device and method for charging processing plants, in particular, combustion furnaces (1), is disclosed, in which a flowing process material (3), which has solid components (6) in addition to liquid components (5), is introduced into the processing plant (1), by means of a conveyor line (2) under pressure. According to the invention, advantageous charging conditions may be achieved, by means of mixing the process material (3) before pressurization.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: March 6, 2012
    Inventor: Kurt Himmelfreundpointner
  • Publication number: 20120012040
    Abstract: A waste incinerator system is disclosed for incinerating waste in a holding tank. The system comprises a pump in fluid communication with the waste, and which is adapted to pump waste out of the holding tank and into a substantially hollow burning chamber. The burning chamber includes a raised open end and a lowered chimney end. The chimney end is sealed with a selectively removable chamber plate and includes a chimney for venting exhaust fumes from within the burning chamber. A waste tray is adapted to be slid into the burning chamber through the chimney end and holds waste received from the pump. A burner assembly is fixed adjacent with the open end of the burning chamber and adapted to direct a flame into the open end of the burning chamber to heat the waste tray and incinerate the waste therein. A housing is included to enclose the burner assembly and the burning chamber.
    Type: Application
    Filed: July 13, 2011
    Publication date: January 19, 2012
    Inventors: Stefan Johansson, Mattias Johansson
  • Patent number: 8070863
    Abstract: The present invention provides a gas conditioning system for processing an input gas from a low temperature gasification system to an output gas of desired characteristics. The system comprises a two-stage process, the first stage separating heavy metals and particulate matter in a dry phase, and the second stage including further processing steps of removing acid gases, and/or other contaminants. Optional processes include adjusting the humidity and temperature of the input gas as it passes through the gas conditioning system. The presence and sequence of processing steps is determined by the composition of the input gas, the desired composition of output gas for downstream applications, and by efficiency and waste minimization.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: December 6, 2011
    Assignee: Plasco Energy Group Inc.
    Inventors: Andreas Tsangaris, Margaret Swain
  • Patent number: 7971539
    Abstract: A cleaning device, cleaning tool and method for cleaning outlet ports or the like and/or outlet spouts (12) or the like in soda recovery boilers of the like the cleaning device including at least one connecting rod and at least one front tool part mounted on the connecting rod.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: July 5, 2011
    Assignee: Eie Maskin AB
    Inventors: Ulf Eriksson, Pär Åke Jansson
  • Patent number: 7926747
    Abstract: A nozzle for the spraying of black liquor in a recovery boiler has discharge orifice inserts that can be removed and replaced with other inserts, to provide variable spray patterns, by changing the size and/or shape of the orifice of the nozzle, without requiring replacement of the entire nozzle body, to enable fine tuning of the atomization of the spray.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: April 19, 2011
    Assignee: Clyde Bergemann, Inc.
    Inventors: Mohomed Ishaq Jameel, Daniel R. Higgins
  • Publication number: 20110000407
    Abstract: An on-site electrical power generation system utilizing environmentally hazardous waste oils as a combustible fuel. The disclosed invention utilizes the combustion of environmentally hazardous waste oils to drive a heat engine and electrical generator. In addition, the system is adapted to provide local space heating and hot water as a byproduct of the combustion process.
    Type: Application
    Filed: June 29, 2010
    Publication date: January 6, 2011
    Inventor: Terry Edgar Bassett
  • Publication number: 20100192815
    Abstract: The present invention is directed to a process for burning industrial plant waste, equipment for burning such waste, and a steam-generating boiler that uses the calorific power of the waste for generating energy without polluting the atmosphere. The present process is carried out by controlling the viscosity of the waste, thus burning same out, and the generated steam is advantageously used for the generation of energy through a generator.
    Type: Application
    Filed: February 1, 2010
    Publication date: August 5, 2010
    Applicant: IMCOPA Importacao, Exportacao e Industria de Oleos S.A.
    Inventor: Paula Fernandes de Siqueira
  • Publication number: 20100192816
    Abstract: An inside of an incinerator body into which sludge is fed is divided into a lower portion, a portion above the lower portion, and a top portion in a height direction. The lower portion serves as a pyrolysis zone for supplying fluidizing air having an air ratio of 1.1 or less together with fuel to thermally decompose the sludge while fluidizing the sludge. The portion above the lower portion serves as an over bed combustion zone for supplying only combustion air having an air ratio of 0.1 to 0.3 to form a local high temperature place to decompose N2O. The top portion serves as a perfect combustion zone for perfectly combusting unburned contents. The quantity of N2O generated during sludge incineration can be drastically reduced while maintaining the use quantity of auxiliary fuel at the same level as that of a conventional incineration method.
    Type: Application
    Filed: April 12, 2010
    Publication date: August 5, 2010
    Applicant: Metawater Co., Ltd.
    Inventors: Masaki YAMADA, Tetsuya Yanase, Masayuki Yamamoto, Tomoyuki Takeshita, Kosuke Kamiya
  • Publication number: 20100154691
    Abstract: A handling device for liquor guns (2) of a recovery boiler plant, which device comprises transfer means (11) for transferring a nozzle (7) of a liquor gun to the furnace (1) of a boiler and out from the furnace. In addition, the invention relates to a recovery boiler plant as well as a method in a recovery boiler plant.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 24, 2010
    Applicant: Metso Power Oy
    Inventors: Heikki Sainio, Ari Saarela
  • Publication number: 20100139537
    Abstract: Thermal oxidiser (1) for the oxidation of a feed liquid (W) comprising an elongated retort (3) provided with a combustion gas input lance (5), a feed liquid input lance (7), one or more flow straighteners (11) and an exhaust gas outlet (13) wherein said retort (3) comprises an elongated wall (15) with a first end plate (17) fastened to a first end (19) thereof and a second end plate (21) fastened to the second, opposite end (23) thereof, combustion gas input lance (5) projects substantially horizontally through first end plate (17) into said retort (3) and feed liquid input lance (7) projects downwards though the retort wall into said retort (3).
    Type: Application
    Filed: August 18, 2006
    Publication date: June 10, 2010
    Applicant: GE HEALTHCARE UK LIMITED
    Inventors: Ian Richard Bonnett, Stan Kolaczkowski
  • Publication number: 20100132592
    Abstract: An object of the present invention is to provide a wet sludge disposal method and facility capable of smoothly transferring wet sludge to a kiln inlet part, or the like, of a dry process kiln, by a low feeding pressure and without substantially increasing the moisture content in the wet sludge.
    Type: Application
    Filed: August 26, 2005
    Publication date: June 3, 2010
    Inventors: Koji Nagamizu, Akihisa Koga, Hiroyuki Terunuma, Yusuke Nakai, Koyuru Horiike, Masafumi Ito
  • Publication number: 20100101463
    Abstract: An arrangement is disclosed for supplying an air jet form to the furnace of a recovery boiler, where the furnace has a front wall, a rear wall and side walls. Black liquor spraying devices are disposed on the furnace walls on one or several levels of the furnace. A plurality of air ports are located at several horizontal elevations for introducing air into the furnace from an air supply. In the arrangement for the secondary air flows, at least two horizontal air levels at different elevations are arranged above the lower primary levels and below the black liquor sprayer. Secondary air is supplied from two opposite walls. The secondary air ports on each of said first and second horizontal elevations comprise air ports for each horizontal elevation that project a pattern of large air jets into the furnace from said opposite walls and said secondary air ports further comprise a plurality of secondary air ports on at least one of the elevations that project smaller air jets into the furnace.
    Type: Application
    Filed: October 14, 2005
    Publication date: April 29, 2010
    Applicant: ANDRITZ OY
    Inventors: Kari Saviharju, Jorma Simonen, Raimo Paju, Jukka Savolainen, Esa Vihavainen
  • Patent number: 7677185
    Abstract: The invention is a system and method for neutralizing fluid chemical waste products that result from a chemical production process and are collected from the production line. The invention comprises a pyrolysis/reaction chamber into which the fluid chemical waste is pumped through an atomizer. The jet of small droplets of liquid waste that is formed by the atomizer effectively contacts the plasma stream created by a plasma torch. When the droplets contact the plasma stream the molecules of the waste from which the droplets are composed are dissociated into atoms and/or ions. These atoms and ions move out of the immediate region of the plasma stream and recombine to form a mixture of product gases which exits the chamber. The product gases then enter a post-pyrolysis subsystem, which is designed to neutralize and/or collect the components comprising the mixture of product gases.
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: March 16, 2010
    Assignee: E.S.T. Ecological Systems Ltd.
    Inventor: Yehuda Yuri Simon
  • Patent number: 7661376
    Abstract: A spent liquor recovery boiler system including a boiler having a water/steam circulation system with superheaters and a furnace for recovering energy and chemicals from spent liquor combusted therein, the walls of the boiler are formed of a plurality of water-cooled tubes connected to the water/steam circulation system. The system is provided with at least one cavity having walls formed of water-cooled tubes connected to the water/steam circulation system, means for combusting a fuel and at least one outlet for discharging combustion gases to the boiler, the interior of the at least one cavity being provided with heat exchanger means for final superheating of the steam generated in the boiler, said heat exchanger means being connected to the superheaters of the boiler.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: February 16, 2010
    Assignee: Andritz Oy
    Inventors: Kari Saviharju, Jorma Simonen, Olli Arpalahti, Lasse Koivisto
  • Patent number: 7571687
    Abstract: A mobile destruction apparatus for use with oil contaminated with a toxic organic pollutant material includes a housing, which defines a first heating combustion chamber for heating the oil to generate a toxic fluid using a first burner connected thereto. The apparatus includes a rotating transition cylinder that defines a drying chamber, which is in fluid communication with the combustion chamber to receive the toxic fluid. The cylinder includes an amount of a desiccant material to dry the toxic fluid. A second heating destruction chamber is provided downstream of the cylinder to heat the toxic fluid to substantially convert it and destroy it into an inert fluid, which exhausts from the apparatus. A method of destructing toxic contaminants from contaminated oils is also described.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: August 11, 2009
    Inventor: J René Cornellier
  • Publication number: 20090044767
    Abstract: In a boiler, a space is reserved to expand the boiler by increasing the front and rear walls. To expand the boiler, wall additions are added to increase the width of the front and rear walls. After the expansion, the distance between the front and rear walls is substantially the same distance between the front and rear walls before the expansion.
    Type: Application
    Filed: October 18, 2005
    Publication date: February 19, 2009
    Applicant: ANDRITZ OY
    Inventors: Jan Storbacka, Petri Tikka
  • Publication number: 20090000530
    Abstract: A waste oil combustion apparatus can use various kinds of waste oils and burn the same efficiently, and permits effective utilization of the thermal energy resulting from the combustion thereof. The apparatus includes a bottomed cylindrical combustion furnace, a waste oil supply unit for supplying waste oil into the furnace, an auxiliary-fuel supply unit for supplying auxiliary fuel for burning the waste oil in the furnace, an ignition burner for heating the furnace inside and the waste oil and auxiliary fuel to ignite the fuels, an air supply unit for supplying air to the furnace, and a controller for controlling each of the igniting burner, waste oil supply unit, auxiliary-fuel supply unit and air supply unit to act at a predetermined time and operate for a predetermined time. The waste oil is spirally swirled inside the furnace under the action of air from the air supply unit.
    Type: Application
    Filed: May 27, 2008
    Publication date: January 1, 2009
    Applicant: Fujita Manufacturing Co., Ltd
    Inventor: Syuichiro Fujita
  • Publication number: 20080236459
    Abstract: A combustion air system particularly useful for Kraft process recovery boilers or soda process recovery boilers has a level of liquor air ports located above the black liquor guns, and multiple levels of tertiary air formed by substantially vertically aligned tertiary air ports located above the black liquor guns. The liquor air ports and the tertiary air ports are on the same opposing walls of the furnace and are substantially vertically aligned with air ports in the same wall at different levels. The liquor air ports are located just above the black liquor guns, within a range of about ½ foot to about four feet. The tertiary air ports are laterally offset with respect to the tertiary air ports on the opposing wall of the furnace.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 2, 2008
    Inventor: Richard A. Wessel
  • Publication number: 20080236460
    Abstract: A device and method for charging processing plants, in particular, combustion furnaces (1), is disclosed, in which a flowing process material (3), which has solid components (6) in addition to liquid components (5), is introduced into the processing plant (1), by means of a conveyor line (2) under pressure. According to the invention, advantageous charging conditions may be achieved, by means of mixing the process material (3) before pressurization.
    Type: Application
    Filed: September 25, 2006
    Publication date: October 2, 2008
    Inventor: Kurt Himmelfreundpointner
  • Patent number: 7426891
    Abstract: A simplified energy producing system that utilizes natural animal waste and/or by-products and converts such waste into a usable clean energy source. The system incorporates a grinder/dehydration system, waste transport, a holding container, fuel air regulator, and a novel combustion heat regulator in combination. Thus, after the waste has been treated, combusted and incinerated, intense heat is produced that is usable via heat exchange for production of electrical energy and also a fine fly ash is produced usable for environmentally friendly purposes.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: September 23, 2008
    Inventor: Ronald E. Loving
  • Patent number: 7270539
    Abstract: A burner assembly for the destruction of noxious vapors and other waste streams includes an inner burner element in the form of a sudden expansion burner and an outer burner element that encircles the inner burner element and forms an annular passageway between the two elements. Waste vapors may be conducted directly into the flame of the inner burner element (direct inject) or routed through the annular passageway and preheated, for injection at the flame or beyond. The burner elements may include solid or perforated cones mounted on their exits to enhance mixing and injection of the streams. The burner assembly may be equipped with water injection nozzles for flash oxidation of contaminants in waste waters.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: September 18, 2007
    Assignee: Soil-Therm Equipment, Inc.
    Inventor: Mark L. Sujata
  • Patent number: 7207280
    Abstract: An arrangement is disclosed for supplying an air jet form to the furnace of a recovery boiler, where the furnace has a front wall, a rear wall and side walls. Black liquor spraying devices are disposed on the furnace walls at one or several levels of the furnace. A plurality of air ports are located at several horizontal levels for introducing air into the furnace from an air supply. In the arrangement for the secondary air flows, two horizontal air levels at different elevations are arranged above the lower primary levels and below the black liquor sprayer. Secondary air is supplied from two opposite walls and the air ports from each of the two levels are located so that the air jets are introduced in an interlaced pattern having an even number of jets on one opposite wall and an uneven number of jets on the other opposite wall. The air jets of said at least two air levels are located substantially one above each other in substantially vertical rows.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: April 24, 2007
    Assignee: Andritz Oy
    Inventors: Kari Saviharju, Jorma Simonen, Liisa Simonen, Esa Vakkilainen, Esko Mattelmaki
  • Patent number: 7185594
    Abstract: A combustion air system for a recovery boiler is described in which multiple levels of secondary and tertiary combustion air ports each have an even number of ports, with the ports on opposing walls interlaced. The air system lends itself equally well to front/rear wall or sidewall applications and is especially beneficial for rectangular boilers. The air system features large and small-scale horizontal circulation zones superimposed on each other and the ability to adjust the angle of the air jets. Additional features include port dampers for the starting burners and system control based on kinetic energy.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: March 6, 2007
    Assignee: Clyde Bergemann, Inc.
    Inventors: Daniel R. Higgins, Eugene Sullivan
  • Patent number: 7083763
    Abstract: A feed system for loading waste into a fuel gas generator system where the feed system is made of a walled container wherein the outer container back has an outer back hole and the inner container back has an inner back hole, and wherein the holes are aligned and a piston penetrates the holes, wherein the piston is connected to a plate moveably disposed in the container, wherein the piston is connected to sealable opening locks to apply pressure and retract the plate to a position against the back thereby providing a loading chamber to insert waste, a second piston connected to the door retracts the door for loading waste, at least one inert gas injector mounted to the container for flooding the loading chamber with inert gas, a liquid cooling system disposed in the walls of the container, and a controller for operating the locks, doors and sealable opening.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: August 1, 2006
    Inventor: Joseph Frank Pierce, Jr.
  • Patent number: 5153508
    Abstract: A method is described for determining the return stroke polarity of distant lightning for distances beyond 600 km by detecting the electric field associated with a return stroke of distant lightning, and processing the electric field signal to determine the polarity of the slow tail of the VLF waveform signal associated with the detected electric field. The polarity of the return stroke of distant lightning is determined based upon the polarity of the slow tail portion of the waveform.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: October 6, 1992
    Assignee: United States of America as Represented by the Administrator, National Aeronautics and Space Administration
    Inventors: Richard J. Blakeslee, Marx Brook
  • Patent number: RE43733
    Abstract: A combustion air system for a recovery boiler is described in which multiple levels of secondary and tertiary combustion air ports each have an even number of ports, with the ports on opposing walls interlaced. The air system lends itself equally well to front/rear wall or sidewall applications and is especially beneficial for rectangular boilers. The air system features large and small-scale horizontal circulation zones superimposed on each other and the ability to adjust the angle of the air jets. Additional features include port dampers for the starting burners and system control based on kinetic energy.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: October 16, 2012
    Inventors: Daniel R. Higgins, Eugene Sullivan