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8157561 |
System for controlling atmosphere gas inside furnace
A system for controlling atmospheric gas inside a furnace may include a furnace into which an atmospheric gas is charged for thermaltreating carbon steel, a flow control portion that is connected...
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8116992 |
Apparatus and method for determining solids circulation rate
The invention relates to a method of determining bed velocity and solids circulation rate in a standpipe experiencing a moving packed bed flow, such as the in the standpipe section of a circulating...
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8069825 |
Circulating fluidized bed boiler having improved reactant utilization
A method of operating a furnace having a circulating fluidized bed is described. Fuel is combusted in the fluidized bed. The fluidized bed includes a dense bed portion and a lower furnace portion...
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8021143 |
Furnace
A gas fired furnace capable of operating with a 16:1 turndown ratio or greater. The furnace includes a plurality of burners (10) grouped into at least (14a) first and second (14b) groups, each...
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7850448 |
Furnace
A gas fired furnace capable of operating with a 16:1 turndown ratio or greater. The furnace includes a plurality of burners (10) grouped into at least (14a) first and second (14b) groups, each...
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7662351 |
Process and plant for producing metal oxide from metal compounds
The present invention relates to a process for producing metal oxide from metal compounds, in particular metal hydroxide or metal carbonate, in which the metal compound is conveyed into a reactor...
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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)...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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6290492 |
Method of reducing NOx emission from multi-zone reheat furnaces
A method for controlling NOx in a multi-zone re-heating furnace used for meeting process heating (or re-heating) requirements in the metals industry. Oxidant-fuel stoichiometry is altered in...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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3887326 |
Kilns and furnaces
This invention relates to kilns and furnaces in which granular material is heat treated and to a method of operating such kilns and furnaces.
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3832128 |
PROCESS AND APPARATUS FOR PREHEATING SOLID PARTICULATE MATERIALS
A method and apparatus for preheating solid particulate materials such as limestone and materials used in the process of making sealed surface lightweight aggregate. It includes a vessel having an...
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3756768 |
AIR FLOW CONTROL IN SHAFT FURNACES
Apparatus and method of controlling and distributing air in a vertical shaft furnace for indurating oxide pellets including combustion chambers for introducing heated air at opposite sides of a...
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3746537 |
PROCESS AND APPARATUS FOR THE CONTROL OF THE SPEED OF MOVEMENT OF SINTER STRAND
A process and apparatus for regulating the speed of movement of a sinter strand, upon which sinterable material is disposed, with the speed of movement of the sinter strand being controlled so that...
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3733171 |
APPARATUS AND METHOD FOR FIRING MAGNETIC CORES
A kiln for sintering small magnetic cores or other parts, which includes a vertically extending tube that is heated along a center section. Magnetic cores of a diameter much smaller than the inside...
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3659829 |
METHOD FOR ADJUSTMENT OF THE HEAT GENERATING PROCESS IN A ROTARY KILN WITH A HEAT EXCHANGER ETC.
A rotary kiln system employing a pre-heater for feeding material to the kiln. A temperature sensing device is placed in the gas outlet of the rotary kiln and control means are provided to regulate...
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3645516 |
METHOD OF AND APPARATUS FOR PREHEATING SCRAP METAL
Scrap metal contained in a receptacle is preheated, preparatory to charging it into refining apparatus, by circulating through it hot gases generated by burning a carbonaceous fuel in a combustion...
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3645515 |
METALLURGICAL FURNACE INSTALLATION AND OPERATING METHOD
A metallurgical furnace installation and method for operating the metallurgical furnace installation. The installation includes a vessel in which metallurgical operations are carried out with...
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3645514 |
PRODUCTION OF REFRACTORY MATERIALS
The disclosure relates to the production of refractory material in a vertical shaft forced draft kiln wherein the air and fuel supply to the kiln are periodically and automatically interrupted for...
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