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7101175 |
Anode tailgas oxidizer
A combustor for oxidizing a combustion fuel and pre-heating one or more reactants for fuel reforming. The combustor includes an elongated housing having an inlet for receiving a combustion fuel and...
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7037409 |
Method of hot-repairing the heating flues of a coke-oven battery and device for carrying out said method
A method and a device for the hot-repairing of the heating flues of a coke-oven battery according to which the completed sections of a heating flue still under construction are heated by means of a...
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6183243 |
Method of using nuclear waste to produce heat and power
A method of using nuclear waste material and exploiting heat generated by radioactive decay of said radioactive waste, comprising the steps of incorporating solid nuclear waste into glass, ceramic,...
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5876197 |
Method for heating a fuel-fired industrial furnace and regenerator/burner system therefor
In order to create a regenerative, energy-saving fuel firing for an industrial furnace, particularly for a metal smelting furnace, that can flexibly take all possible time and space operating...
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5759022 |
Method and system for reducing NOx and fuel emissions in a furnace
In a method of this invention, a first oxidant flow including oxygen and/or air, is injected into an exhaust gas flow from a primary burn zone in a furnace combustion chamber. The first oxidant...
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5225357 |
Low P+ contact resistance formation by double implant
The method of manufacture of a PMOS integrated circuit having a feature size in the order of one micron or less is done by providing, on a silicon substrate, a pattern of silicon gate electrodes...
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5203859 |
Oxygen-enriched combustion method
A process and apparatus for oxygen-enriched combustion of a fuel in an industrial furnace in which a preheated primary oxidant from a heat exchanger and a fuel to be combusted are introduced into a...
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5044940 |
Blast furnace air heater
An air heating apparatus for air that is to be supplied to a blast furnace. The apparatus includes a number of separate air heater devices connected together in series flow relation so that the...
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4877013 |
Hot blast stove installation
A hot blast stove installation for heating cold blast to form hot blast includes a plurality of hot blast stoves each alternately operable during a heating phase and a blowing phase, a cold blast...
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4874311 |
Method and apparatus for improved regenerative furnace
A method and apparatus for improving the performance of a regenerative burner has a combustion chamber which receives and combusts controllable amounts of auxiliary fuel, an oxidizing gas, and...
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4830093 |
Method and apparatus for utilizing waste heat in a combustion system
An improved method and apparatus for recovery of waste heat of the type having a first heat exchanger which transfers heat to a working fluid and a second heat exchanger which transfers heat from...
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4824364 |
Non-ferrous metal smelting furnace
A non-ferrous metal smelting furnace including a preheating tower includes a smelting chamber, provided below the preheating tower, a combustion chamber, provided adjacent to the preheating tower,...
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4666403 |
Air preheating system for continuous fired furnace
A system for preheating air being fed to a continuous fired furnace by means of high temperature waste gases exhausted from the furnace. The system includes two pairs of interconnected...
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4614496 |
Cowper having no combustion shaft
A cowper having no combustion shaft is presented wherein a combustion chamber is topped by a cupola and is positioned above the chequerwork. One or more burners are arranged symmetrically on the...
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4582485 |
Blast furnace stove
The burner means for a blast furnace stove having a vertical shell, a combustion chamber adjacent the inside wall of the shell and checkers in the shell includes a generally horizontal first tube...
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4540361 |
Enhanced pneumatic regenerator flow control
Pneumatic control of flow patterns in regenerators is improved by the use of flow amplifier nozzles.
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4516934 |
Waste heat recovery from regenerative furnaces
A system for recovering clean hot air from a regenerative, glass melting furnace. The furnace, which may be either a side-port or end-port furnace, is constructed in the conventional manner, but a...
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4507175 |
Fractional distillation process and applications thereof to the production of thermal or mechanical energy from two low level heat sources
A novel fractional distillation process and applications thereof to the production of thermal or mechanical energy from two low level heat sources wherein a mixture of two highly non-ideal reactive...
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4496315 |
Port wall air jet for controlling combustion air
In a multiport combustion furnace having a plurality of firing ports in undivided communication with a common source of combustion gas or air, the invention provides a method and apparatus for...
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4496316 |
Target wall air jet for controlling combustion air
A method of and apparatus for selective control of combustion gas flow in a furnace firing port in a furnace of the type having a plurality of firing ports, each port having a passageway for...
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4492568 |
Process and apparatus for preheating the combustion mediums used for firing blast furnace stoves
Combustion air and fuel gas used for firing blast furnace stoves is preheated by utilizing the heat of waste gases resulting from such firing. The combustion air and fuel gas are passed through...
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4492567 |
Method of removal of impure gases at the time of scrap preheating, and equipment for use of same
A method and apparatus for preheating scrap metal within pure gases discharged from a metallurgical vessel. The method comprises the steps of burning the gases in a combustion chamber to remove...
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4478627 |
Recuperation of heat absorbent media to preheat combustion gases and glass batch
A method of recovering heat from furnace flue gas which comprises passing the hot gases into contact with high specific heat media and the media into contact successively, with combustion gases and...
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4460335 |
System for preventing excess pressure in a gap between a double-shell structure of a blast heating apparatus
A blast heating apparatus includes an inner metal shell and an outer metal shell defining therebetween a gap filled with at least one pourable dry material, for example a mixture of SiC and...
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4454053 |
Additive for the water circulating in civil and industrial heating plants
This invention is relevant to a method for saving fuel in heating plants which utilize thermal energy obtained through combustion of fuel in a boiler and in which the heat transfer medium is...
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4452586 |
Method of blast heating
A method of and a device for blast heating is described, employing separate indirect heat exchangers for combustion air and fuel gas fed to a regenerator and flue gases discharged from the...
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4444555 |
Method for reducing stress corrosion cracking in high-temperature regenerative air heaters
Stress corrosion cracking which occurs in metallic portions of a high-temperature regenerative air heater can be alleviated by the disclosed methods. The methods include the step of storing a gas...
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4435157 |
Heat exchanger construction and method of operation
A heat exchanger and especially a blast preheater (or cowper) for blast furnaces with refractory lining, insulating layer and steel jacket is described, the insulating layer of which is designed so...
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4434004 |
Method for recovery and recycling of heat from hot gases in metallurigical processing
The present invention relates to a method and an apparatus for the recovery and recycling of heat from hot exhaust gases, specifically from exhaust gases in metallurgical processes and from warm...
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4394122 |
Furnace regenerator with improved flow distribution
A continuous regenerative tank-type glass melting furnace having a plurality of burner ports along each side in communication with a longitudinally extending plenum. Beneath and extending...
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4364727 |
Heat treatment of foodstuff
A method of heat treatment of foodstuff in which a stream of oxygen-containing gas and fuel is passed over one or more catalysts to raise the temperature of the gas stream and the resulting hot,...
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4358305 |
Method of and apparatus for analyzing atmosphere of a combustion chamber
A hole through each of opposed walls of a combustion chamber of a glass melting apparatus and piping interconnect the chamber atmosphere to an oxygen analyzer. A sample of the chamber atmosphere is...
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4334861 |
Method and apparatus for generating a hot air blast
A system to supply high temperature blast air and a method for providing preheating of a cold air blast by gas-to-air heating in a tube-type heat exchanger with heat from waste products of...
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4322205 |
Regenerative air heater
A gas-cooled steel skirt is used to support a refractory cored brick matrix and dome structure in a high temperature regenerative air heater useful in magnetohydrodynamic power generation. The...
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4311456 |
Blast furnace stove
A vertically-fired blast furnace stove includes a mixing bed comprised of a multitude of spheres, cylinders or berl saddles supported by a carrier having openings therein located in the bottom...
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4306859 |
Furnace preheater
A preheater suitable for a laboratory furnace provides improved furnace temperature uniformity and atmosphere control. The preheater comprises a rectangular chamber which is adapted to be placed in...
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4188185 |
Method and apparatus for the treatment of particulate materials
A process and apparatus for treating materials, such as solid, particulate material, wherein the particulate material is introduced into a heat transfer medium, the density of such medium being...
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4153411 |
Rotary sludge drying system with sand recycle
A process and system to dry wet sewage sludge with hot sand and to burn the dried sludge. The sand is heated in a sand heater by burning dried sludge, and the hot sand is transferred to a sludge...
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4144020 |
Energy conserving process furnace system and components thereof
An energy conserving process furnace has a recuperator to utilize heat derived from exhaust gases in order to reduce fossil fuel consumption of the furnace. Elongated, enhanced surface ceramic heat...
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4102636 |
Furnace with heat exchanger flow control
An industrial heating furnace wherein hot exhaust gases from the furnace are heat exchanged in a rotary ceramic heat exchanger with air which is supplied to burners in the furnace for combustion...
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3951586 |
Method of operating the heating stoves
A method is disclosed for the improved operation of heating stoves for blast furnaces. This method is comprised of a combined use of an independent source of compressed air and potential and...
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3951794 |
Geothermal power method
Disclosed are a system and method for extracting heat from hot unrefined water for the purpose of using this heat to do useful work, and specifically for extracting such heat while minimizing the...
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3935102 |
Geothermal power system and method
A system and method for extracting heat from hot unrefined water and ultimately using this heat to do useful work, while avoiding the danger of damage to heat exchange equipment by scale and...
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3912444 |
Method for operating hot blast stove
A method for operating a hot blast stove characterized in that when intermittently operating a plurality of hot blast stoves each having a pressure supply valve, a cold blast valve, a stack valve,...
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3907491 |
Molten metal superheater and method of using the same
A heat exchanging device is provided for superheating molten metals, such as aluminum, which are reflective of radiant heat. Conductive channel walls are provided in a superheating furnace, said...
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3902844 |
Method for operating a hot blast stove
A method for operating a hot blast stove in which a combustion gas of a sulfur-containing fuel is passed through a regenerator to heat up the regenerator and air subsequently is blown through the...
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3746503 |
METHOD AND APPARATUS FOR HEATING COMBUSTIBLE GAS
This invention relates to a regenerator heat exchanger with means for changing over a reforming stage to a reheating stage and vice versa. The invention is also concerned with a method of using...
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3642262 |
METHOD FOR OPERATING A REGENERATIVE GAS HEATER, AND A GAS HEATER FOR USE IN THIS METHOD
In a hot blast stove for a blast furnace a method and means are provided to prevent, during the "on blast" period, overheating of the burner surface, and the occurrence of great differences in...
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3633893 |
METHOD OF OPERATING A REFRACTORY REGENERATIVE FURNACE
A method of operating a refractory regenerative furnace having a combustion chamber located between two heat-regenerative masses and a baffle means located in the combustion chamber, wherein the...
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3627014 |
HEAT-EXCHANGER SYSTEM
Heat exchanger system comprises a plurality of heat exchangers, each being provided with heating means, and preheaters mutually paired and connected by connecting tubes having control valves. The...
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