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| Number | Title | Issue Date |
| 7427375 | Diffuser for an annealing furnace A diffuser (24) for an annealing furnace has a plurality of radially extending generally and vertically oriented vanes (40) for radially directing furnace gases. The vanes have top edges (42) defining a generally planar support and the top edges... | 09/23/2008 |
| 7410356 | Circulating fluidized bed boiler having improved reactant utilization A circulating fluidized bed boiler having improved reactant utilization. The circulating fluidized bed boiler includes a circulating fluidized bed having a dense bed portion; a lower furnace portion adjacent to the dense bed portion; and an upper furnace portion, wh... | 08/12/2008 |
| 7287980 | Ton unit heating saddle Embodiments of the invention provide methods, systems, and apparatus for delivering gas in a liquefied state at a controlled rate. The liquefied gas may be transported in ton cylinders by placing the ton cylinder on a transportation pallet. The transportation pallet... | 10/30/2007 |
| 7279037 | Process and products of chinese kaolin Disclosed are methods of processing Chinese kaolin involving providing Chinese kaolin having a desired powder size, delaminating the Chinese kaolin, pulverizing the delaminated Chinese kaolin at least two times, and heating the at least twice pulverized Chinese kaol... | 10/09/2007 |
| 6926752 | Method for the stabilization of a fluidized bed in a roasting furnace This invention relates to a method for stabilizing a fluidized bed used in roasting by adjusting the oxygen content of the roasting gas in the bed. The fine-grained material for roasting is fed into the furnace above the fluidized bed and the roasting gas, which cau... | 08/09/2005 |
| 6638061 | Low NOx combustion method and apparatus Primary fuel and preheated oxidant are injected into a combustion zone to produce a flame with a predetermined adiabatic flame temperature. The preheated oxidant is injected at a target rate of oxidant injection. The primary fuel is injected at a first re... | 10/28/2003 |
| 6454562 | Oxy-boost control in furnaces A process controls oxy-boost firing and air-fuel burner firing in furnaces, including large glass furnaces such as float furnaces. The large side-fired regenerative float furnaces use oxy-boost firing for a variety of reasons, including production increas... | 09/24/2002 |
| 6375457 | Method for manufacturing a multilayered ceramic electronic component A method for manufacturing a multilayered ceramic electronic component includes the step of firing multilayered ceramic bodies having therein ceramic layers and internal electrodes in a firing furnace while flowing one or more atmosphere gases thereinto, ... | 04/23/2002 |
| 6368884 | Die-based in-fab process monitoring and analysis system for semiconductor processing A method is provided for manufacturing, the method including processing a workpiece in a plurality of processing steps and measuring characteristics of the processing performed on the workpiece in at least two of the plurality of processing steps. The met... | 04/09/2002 |
| 6159003 | Combustion process using separate injections of fuel and of oxidizer Combustion process in a furnace comprising a floor on which a charge to be heated is placed, and a roof lying above the charge, in which process the combustible fluid and the oxidizer fluid are injected separately between the surface of the charge and the... | 12/12/2000 |
| 5971286 | Method for the determination of the gas flux distribution in a blast furnace This invention relates to a method for the determination of the gas flux distribution in the shaft of a blast furnace. The invention is characterized in that: the temperature and optionally also the composition of the gas that has passed through the burde... | 10/26/1999 |
| 5779467 | Method and apparatus for preheating particulate material A preheating apparatus for particulate material includes a plurality of vertical chambers, a temperature sensor within each chamber and a particulate discharge mechanism. Each chamber is segregated from an adjacent chamber by a vertical wall and includes ... | 07/14/1998 |
| 5290334 | Apparatus for batch preheating and pollution abatement in glass manufacture A method and apparatus for glass manufacture is described having batch preheating and reduced pollution emission. The apparatus includes two modules containing pelletized glass and/or cullet. One module functions as a pelletized glass preheater, and the o... | 03/01/1994 |
| 5213497 | Semiconductor processing gas diffuser plate Disclosed is a baffle apparatus for insertion into a semiconductor wafer processing furnace to diffuse processing gases that are injected into the furnace by an injector nozzle. The baffle apparatus comprises: a diffuser plate assembly having an upper end and ... | 05/25/1993 |
| 5024599 | Semiconductor processing apparatus for creating back pressure within a quartz furnace tube Disclosed is a semiconductor processing furnace flow restricting apparatus for insertion into a longitudinally elongated semiconductor wafer processing furnace to create back pressure to increase residence time of processing gases within the furnace. The ... | 06/18/1991 |
| 4817008 | Method of regulating a cement manufacturing installation To enable the operation of a cement manufacturing installation to be controlled by taking into account changes in essential operating parameters as soon as they appear, the quantity of the total theoretical heat (QT) required to convert the raw material t... | 03/28/1989 |
| 4787938 | Countercurrent drum mixer asphalt plant A drum mixer asphalt plant is provided with a rotatable cylinder 10 in which virgin aggregate, recycle material and liquid asphalt are mixed to produce an asphaltic composition and the hot gas stream for heating and drying the materials flow in countercur... | 11/29/1988 |
| 4716532 | Clinker manufacture control using falling clinker colorific energy measurement To optimize the operation of an installation for the manufacture of clinker, which installation comprises a rotary tubular kiln having an open discharge end for the clinker produced in the kiln, a cooler for the clinker connected to the discharge end, a h... | 12/29/1987 |
| 4687440 | Apparatus for heating charging material In order to be able to heat the charging material (3) of a charging material preheater (1) in a more uniform fashion and to higher temperatures, while enjoying short flow paths, the charging material preheater (1) is in the form of a container (2) having ... | 08/18/1987 |
| 4637795 | Method and apparatus for calcining material containing volatile constituents Bulk materials containing volatile constituents are calcined in a two-stage process comprising a first heating stage at de-volatilizing temperature but below calcining temperature during which the material is turned over and mixed to accelerate its bulk h... | 01/20/1987 |
| 4624634 | Method and arrangement for improving the heat economy in rotary kilns A rotary kiln, in particular, a kiln for reburning of lime mud, wherein the drying and intermediate zones of the kiln chamber are furnished in part with turbulence-forming baffle arrangements to produce a turbulent motion in the hot combustion gases and t... | 11/25/1986 |
| 4571174 | Method for drying particulate law rank coal in a fluidized bed An improved method for drying particulate low rank coal in a fluidized bed wherein the improvement comprises flowing hot fluidizing gas of varying temperatures upwardly through the fluidized bed so that the hottest fluidizing gas flows upwardly through th... | 02/18/1986 |
| 4568272 | Method of operating an open ring-type furnace The operation of an open ring-type baking furnace for the production of shaped carbonaceous bodies and having at least partly grouped fire shafts is such that during the fire reversal phase the negative pressure is regulated in each fire shaft in the tran... | 02/04/1986 |
| 4531907 | Fluidized bed combustor A fluidized bed combustor is adapted to deprive a combustion gas issuing therefrom of dust by bringing the combustion gas into contact with a filter medium which is a fluidizing solid discharged in conjunction with slagging ash out of the combustor.... | 07/30/1985 |
| 4481080 | Staged fluidized bed Method and apparatus for narrowing the distribution of residence times of any size particle and equalizing the residence times of large and small particles in fluidized beds. Particles are moved up one fluidized column and down a second fluidized column w... | 11/06/1984 |
| 4453703 | Sintering machine The invention comprises a sinter belt and a collector, vacuum chambers, a gas cleaning device, an air purifying device, and an exhauster mounted adjacent the belt. Above the sinter belt are mounted assemblies for loading a bed and a charge, and an ignitio... | 06/12/1984 |
| 4437834 | Method of and apparatus for treating granular material A method and apparatus for treating granular materials which require to be heated to drive off volatile constituents and which require to be cooled, for example foundry sand containing an organic binder. The method comprises the step of maintaining a mass... | 03/20/1984 |
| 4381916 | Method and apparatus for roasting fine grained ores A method and apparatus for roasting fine grained ores such as cement raw meal, lime, dolomite, gypsum, phosphate rock and the like. A suspension preheater consisting of a plurality of serially connected cyclone separators is utilized to preheat the raw ma... | 05/03/1983 |
| 4340359 | Apparatus and method of heating particulate material The rotary combustion bed has a rotary drum with a permeable refractory lining through which air is blown during rotation of the drum and cascading of a charge of material in the drum. The air may flow upwardly through the material at a predetermined fixe... | 07/20/1982 |
| 4338160 | Process for drying and/or preheating coal A plant for pre-heating by fluidizing and for milling coking coal in a treatment chamber is combined, by means of heat a exchanger interposed in a circuit for recirculating heat-conveying gas, with a plant for the dry quenching of hot coke in a quenching ... | 07/06/1982 |
| 4329141 | Method of and device for heating finely divided solid particles in conveying ducts In a pneumatic conveying heater or drier for dispersed solid particles, a pulsating device in the form for example of a rotary throttling disk is arranged in the circulation conduit for the conveying stream of hot gas so as to periodically accelerate and ... | 05/11/1982 |
| 4323384 | Preheater for compacted vitrifiable material A preheater in the form of a vertical column for treating a vitrifiable composition introduced into the column at the top and which moves through the column by the force of gravity. The vitrifiable composition, which ultimately moves from the column to fe... | 04/06/1982 |
| 4255129 | Apparatus and method for processing organic materials into more useful states A method for processing various organic materials such as lignocellulosics or biomass into more useful states, such as charcoal, carbon black, and coke, and other processed products while producing useful off-gases, includes feeding aggregate pieces of th... | 03/10/1981 |
| 4149844 | Optimum continuous flow grain drying and conditioning method and apparatus A continuous grain drying and conditioning apparatus of a type including a burner and blower, or a multiplicity of burners and blowers, surrounded by a plenum chamber, air pervious grain holding walls positioned outwardly with respect to the plenum chambe... | 04/17/1979 |
| 4083675 | Scrap preheating system A scrap preheating system of the type employing a conveyor upon which the scrap is placed, an elongate burner hood surrounding the conveyor and burners within the hood which direct flames upon the scrap. The side walls of the burner hood include an elonga... | 04/11/1978 |
| 4022569 | Calcination of coke In the calcination of petroleum coke or the like in a rotary kiln, utilizing controlled air supply intermediate the ends of the kiln to burn removed volatiles and thereby generate all or nearly all of the heat required, highly effective control procedure ... | 05/10/1977 |
| 3959890 | Method and apparatus for adjustably feeding raw material to a preheater for a kiln An apparatus is disclosed in which a raw material feed delivery pipe is connected to the periphery of a vertical conduit that receives gases from a rotary kiln and conducts such gases upwardly to a location where the gases are divided between a pair of cy... | 06/01/1976 |
| 3955915 | Thermal treatment of granular or lumpy material, particularly firing lime, dolomite, magnesite or the like In vertical continuous furnace calcining of lime, dolomite, magnesite, or the like, part of the air which is introduced at the lower end of the furnace chamber is drawn off in the area of the cooling zone within the chamber and is then reintroduced in enc... | 05/11/1976 |
| 3942944 | Heating of aggregate material for asphalt mixing A method and an apparatus for heating a granular aggregate for mixture with asphalt by means of a flue gas being chemically inert to the aggregate. The aggregate is moved intermittently within the gas under control of the stationary periods of driven scre... | 03/09/1976 |
| 3941557 | Thermal treatment of granular or lumpy material, particularly firing lime, dolomite, magnesite or the like and furnace therefor A calcining method and apparatus are provided wherein material to be treated is fed into the top of the furnace and the finished material discharges from the bottom of the furnace and cooling and combustion air enters under forced draft through the bottom... | 03/02/1976 |
