Of Discharging, Or Stopping The Heating Of A Unit Or Batch On Sensed Completion Of Heating Patents (Class 432/43)
-
Publication number: 20130045143Abstract: The disclosed embodiments relate to systems and methods for heating a slurry to increase a solids concentration of the slurry while maintaining the viscosity of the slurry below a threshold viscosity. For example, in one embodiment, a system includes a fuel slurry preparation system having a slurry tank configured to hold a fuel slurry, the fuel slurry having a solid fuel and a liquid. The fuel slurry preparation system also includes a heat source and a controller configured to control the heat source to heat the fuel slurry to decrease a viscosity of the slurry below a threshold viscosity.Type: ApplicationFiled: August 19, 2011Publication date: February 21, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Raymond Douglas Steele, Sivaguru Kanniappan, Raul Eduardo Ayala, Zhaohui Yang, Dejia Wang, Yan Zhou, Karunagaran Sivagurunathan, Murugaraja Sengottaiyan
-
Publication number: 20130011807Abstract: A rotary furnace for conditioning performs includes a heating wheel, a plurality of heating modules disposed on the heating wheel and a control device. Each heating module includes a heating chamber including at least one heating radiator adapted for irradiating the preform with infrared radiation, a holding and lifting device configured to lift or lower at least one of the preform and heating chamber so as to introduce the preform into the heating chamber and/or withdraw the preform from the heating chamber, and a temperature measurement device configured to measure a temperature of at least one of the preform and the heating chamber. The control device is configured to actuate the heating modules based on the measured temperature.Type: ApplicationFiled: October 20, 2010Publication date: January 10, 2013Applicant: KRONES AGInventors: Frank Winzinger, Christian Holzer, Wolfgang Schoenberger, Konrad Senn, Andreas Wutz
-
Patent number: 6340444Abstract: A heat treatment apparatus includes rollers that slide and move an image recording sheet on the surface of a heating member while pressing at least a portion of the sheet against the surface of the heating member. The temperature of a dummy unit, provided at a position adjacent to the rollers, is measured by a temperature sensor. The measured temperature has a relationship with a change in the temperature of the rollers. Temperature control is performed based on the measured temperature in order to adjust the temperature of the rollers. A cushion disposed on a surface of the heating member is arranged to moderate the pressure which is exerted by the rollers on the sheet. A pulling mechanism provides a tension to the cushion, which is detachable from the heating member.Type: GrantFiled: April 18, 2000Date of Patent: January 22, 2002Assignee: Fuji Photo Film Co., Ltd.Inventor: Akihiro Hashiguchi
-
Patent number: 5522724Abstract: Process and device for the treatment of lumpy products using process media, the treatment including a predetermined sequence of process steps. A chain of treatment units is moved in a stepwise manner. The product to be treated remains within the same treatment unit for the duration of the sequence of the process steps. A supply unit supplies and removes process media in a stopping-station specific manner so that the process steps can proceed simultaneously in the treatment units.Type: GrantFiled: July 6, 1994Date of Patent: June 4, 1996Assignee: Fresenius AGInventors: Klaus Heilmann, Martin Lauer
-
Patent number: 5293404Abstract: A thermal analysis device with a sample transporting machine which automatically carries out pretreatment of a sample to quickly heat or cool it. The configuration includes an electric furnace, a temperature controller, a temperature program setter, a sample placing/removing program setter, and a sample transporter, wherein the said sample placing/removing program setter commands the said sample transporter to place the said sample in or remove it from the said electric furnace in synchronization with a synchronization signal from the said temperature program setter and in accordance with a preset sample placing/removing program and, hence, the said sample placing and removing operations (i.e. to place a sample in the electric furnace or, conversely to remove a sample from the electric furnace) are carried out in the electric furnace which is performing a heating operation or a cooling operation in accordance with a temperature program output by the said temperature program setter.Type: GrantFiled: November 27, 1991Date of Patent: March 8, 1994Assignee: Seiko Instruments Inc.Inventor: Haruo Takeda
-
Patent number: 5006061Abstract: A method for bringing a plurality of steel slabs to rolling temperature uses a furnace having a controllable energy supply. To accommodate variation of slab temperature at entry, especially mixing of cold and hot slabs, at least one virtual slab corresponding to a group of the steel slabs is determined, and the energy supply is adjusted in dependence on the desired mean temperature at exit from the furnace of the virtual slab. Suitably the furnace has at least two zones each with an individually controllable energy supply, and virtual slabs are determined for the slabs in each zone. Then the energy supply in each zone is adjusted in dependence on the desired mean temperature at exit from the furnace of the virtual slab of that zone and preceding zones.Type: GrantFiled: February 5, 1990Date of Patent: April 9, 1991Assignee: Hoogovens Groep B.V.Inventors: Rudy Westdorp, Frans P. Muysken
-
Patent number: 4966547Abstract: The invention relates to the control of a tunnel furnace partitioned into a plurality of zones for heat treatment of, e.g., ceramic or glass workpieces. As usual the temperatures of the respective zones are controllable individually. Furthermore, in each of selected zones the temperature of that zone is varied from a first level to a second level during the stay of each workpiece in that zone and returned to the first level in a predetermined time after letting the workpiece out of that zone, and the length of stay of each workpiece in that zone is controlled such that another workpiece can be introduced into that zone while the preceding workpiece stays in the next zone and such that a number of workpieces can be heat treated in succession under the same time-temperature conditions.Type: GrantFiled: March 31, 1989Date of Patent: October 30, 1990Assignee: Central Glass Company, LimitedInventors: Takashi Okuyama, Yutaka Yamauchi
-
Patent number: 4690569Abstract: Apparatus and method for implementing a characterized thermal profile upon a temperature/time dependent process on any material or materials susceptible to such thermal processing in accordance with a closed loop environmental feedback system and a corresponding predetermined characterized thermal profile.Type: GrantFiled: May 22, 1986Date of Patent: September 1, 1987Assignee: Qualtronics CorporationInventor: Randall C. Veitch
-
Patent number: 4461616Abstract: An efficient method for using a periodic kiln to heat ceramic material to a state of maturation, and the apparatus for carrying out the method, duplicate the action of pyrometric cones. In a microcomputer, data is stored describing the relationship between rates of temperature increase and deformation temperatures for several numbered pyrometric cones. The kiln operator selects the cone number for use in the firing operation and then activates both the apparatus and the kiln's heating elements. Using a thermocouple, the microcomputer periodically measures kiln temperature and calculates the average rate of temperature increase inside the kiln (the rate need not be controlled). The rate is then used, in conjunction with the stored data, to determine the temperature at which the ceramic material will have matured. If the present temperature in the kiln is greater than or equal to this maturation temperature, the microcomputer sounds an alarm or shuts off the heating elements.Type: GrantFiled: February 25, 1983Date of Patent: July 24, 1984Assignee: The Edward Orton Jr., Ceramic FoundationInventor: Milan Vukovich, Jr.
-
Patent number: 4459103Abstract: An analyzer is provided for use in determining the volatile matter content of coal and coke. The analyzer automatically adjusts a position of a crucible containing a coal or coke sample relative to a furnace depending upon the temperature of the crucible. The crucible is supported and the temperature of the crucible and sample is sensed by means of a thermocouple arranged as a sling for contacting the crucible. The sensed temperature is compared with a predetermined and desired temperature. A comparison difference triggers a vertical movement of the crucible and sample, within the temperature profile of the furnace, using a servomotor until the crucible is positioned such that the sensed temperature and desired temperature correspond.Type: GrantFiled: March 10, 1982Date of Patent: July 10, 1984Assignee: Hazen Research, Inc.Inventor: David H. Gieskieng
-
Patent number: 4383821Abstract: A device for automatically shutting off a sulfur melter when its supply of sulfur is exhausted or when sulfur bridging has occurred is disclosed. The shutoff uses a temperature value sensed at the top of the melter's sloping melter bottom and shuts the heat off when the sensed temperature exceeds a preset value related to sulfur's melting temperature. The device avoids jamming and maintenance problems inherent in the use of mechanical level controls in a powdered/molten sulfur environment.Type: GrantFiled: February 20, 1981Date of Patent: May 17, 1983Assignee: Chevron Research CompanyInventor: Robert W. Campbell
-
Patent number: 4379547Abstract: A continuous cold rolling and annealing apparatus for a steel strip so that interruption of a cold rolling mill part does not directly cause a continuous annealing furnace part to be interrupted, in which apparatus at least one cold rolling mill is located upstream of the entrance of a continuous annealing furnace and an intermediate reel for supplying a spare steel strip coil to said continuous annealing furnace, is arranged between the cold rolling mill and the continuous annealing furnace.Type: GrantFiled: April 10, 1981Date of Patent: April 12, 1983Assignee: Nippon Steel CorporationInventors: Ichiro Shimbashi, Hiroshi Ikegami, Hideharu Bando
-
Patent number: 4188186Abstract: A vessel is mounted above a furnace, and is used for retaining gypsum as it is calcined to prepare it for making wallboard or plaster. A feed of crushed gypsum supplies the vessel-kettle regulated by the temperature required to calcine gypsum. Calcined gypsum flows from the kettle while maintaining a predetermined level of gypsum in the kettle.Type: GrantFiled: June 22, 1978Date of Patent: February 12, 1980Assignee: Combustion Engineering, Inc.Inventor: Richard D. Ladwig
-
Patent number: 4076492Abstract: An electronic dryer for grain or other materials which includes a gas burner and one or more blowers for providing heated air into a plenum chamber from which such heated air passes through the material to be dried between two spaced walls formed with openings such that the heated air can pass therethrough for drying the material. Temperature sensing means in the form of an elongated member such as a wire is mounted within the plenum chamber so as to detect the plenum chamber temperature and to control the duty cycle of the burner and second and third temperature sensing means are mounted between the spaced walls adjacent the inlet and outlet areas of the heated air so as to detect and determine the moisture content in the materials to be dried. These sensors are also elongated and detect the temperature at many portions of the dryer so as to more accurately determine the temperature.Type: GrantFiled: December 27, 1976Date of Patent: February 28, 1978Assignee: AFE Industries, Inc.Inventors: Erhardt E. Alms, Donald P. DeVale, William Russell
-
Patent number: 4022349Abstract: Apparatus for tempering drilling mud preparatory to testing the mud for petroleum content comprising a plurality of cylinders with heat-sinks about their exteriors, resistance heaters in the heat-sinks and temperature control means related to the heaters and heat-sinks, pistons engaged in the cylinders and shiftable longitudinally therein to draw mud into and drive mud out of the cylinders, valve controlled flow means connected with and between the cylinders and upstream and downstream sections of a mud conducting flow line and operable to conduct mud from the upstream section into the cylinders and from the cylinders to the downstream sections and operable by pressure differentials in the cylinders resulting from the movement of the pistons therein, drive means to move the pistons and means controlling operation of the drive means and responsive to the temperature of mud in the cylinders, the pistons operate to wipe and displace mud caked on the walls of the cylinders to be recombined with fluid mud, wherebyType: GrantFiled: August 11, 1976Date of Patent: May 10, 1977Inventors: James P. McMullan, Kermit E. Giddens, Melville E. Borst
-
Patent number: 3982882Abstract: A furnace for preparing test specimens, such as specimens of ceramic materials, is provided, such furnace including a furnace chamber having a heating zone; heating means for heating the heating zone; first specimen support means disposed in the heating zone supporting at least two test specimens to be subjected to heat treatment; heat sensing means disposed in the heating zone for sensing the degree of heat treatment of at least one of said test specimens; specimen outlet conveyor means for removing from the heating zone at least one test specimen subjected to a predetermined heat treatment; and specimen inlet conveyor means for feeding control or blank specimens into the heating zone to maintain constant the total number (total mass) of specimens subjected to heat treatment in the heating zone.Type: GrantFiled: May 19, 1975Date of Patent: September 28, 1976Assignee: Commercial Decal, Inc.Inventor: Saul Weingrad