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7553155 |
Apparatus and method for the production of cement clinker
Apparatus and method for the production of cement clinker, wherein raw meal is preheated in a heat exchanger and is burnt in a kiln to form cement clinker and the exhaust gases from the kiln flow...
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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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7390357 |
Method and plant for manufacturing cement clinker
Described is a method for manufacturing cement clinker by which method cement raw meal is preheated and burned in a plant comprising a cyclone preheater ( 1 ) and a kiln ( 5 ). The method is...
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7384475 |
Method and plant for preheating particulate or pulverulent material
Described is a method as well as a plant for preheating particulate or pulverulent material such as cement raw meal or similar material in a cyclone preheater ( 1 ), comprising at least two cyclone...
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7377773 |
Method of reducing NOx emissions in rotary preheater mineral kilns
This invention relates to a method to further enhance NO x reduction in rotary preheater mineral kilns by coupling the temperature control and gas composition uniformity afforded by the high...
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7361325 |
Methods for making XF•nH2O2 compounds
A substantially dried XF•nH 2 O 2 product is produced by method(s) wherein a feed solution comprised of (i) a XF composition wherein X is K, Na + or NH 4 + and n is an integer from 1 to 3,...
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RE40208 |
Pneumatic flash calciner thermally insulated in feed storage silo
A self-contained calcination plant is enclosed in a feed-storage silo. The plant consists of a vertical reactor, a separation cyclone and a pair of heat exchangers connected by appropriate piping...
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7264781 |
Calcining plant and method
Particulate material to be calcined is conditioned and then introduced into a stream of flue gases which transport the material along a sloping drying duct while drying the material. The dried...
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7189074 |
Method and process for co-combustion in a waste to-energy facility
The co-combustion process may comprise the following unit operations: routing of hot gas ( 10 ) generated in the clinker cooling process to a rotary kiln ( 1 ); use of part of the rotary kiln...
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7052274 |
Method and plant for manufacturing cement clinker
A method and plant for manufacturing cement clinker are disclosed, in which cement raw meal is calcined in a calciner. The calciner comprises an upper zone and a lower zone, where fuel, combustion...
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7029273 |
Process for carbonizing wood residues and producing activated carbon
An apparatus and process for preparing activated carbon from a wood or wood residue feedstock using fluidized bed technology. The fluidized bed apparatus has a number of wood residue inlets that...
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7018485 |
Apparatus for subjecting rare earth alloy to hydrogenation process and method for producing rare earth sintered magnet using the apparatus
An apparatus for subjecting a rare earth alloy block to a hydrogenation process includes a casing, gas inlet and outlet ports, a member arranged to produce a gaseous flow, and a windbreak plate....
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6908507 |
Process and a plant for the production of Portland cement clinker
A process is disclosed for producing cement clinker, comprising the steps of: a) providing a mixture of ground calcareous materials and ground argillaceous materials; b) heating the mixture of step...
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6902714 |
Method for reducing the SO2 emission from a plant for manufacturing cement clinker and such plant
Provided is a method and plant for reducing SO 2 emissions in which a catalyst for catalyzing the formation of cement clinker is extracted from kiln exhaust gas and recycled.
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6881305 |
Heated and cooled vacuum chamber shield
The invention is directed to an apparatus and method for reducing particulates in a semiconductor processing chamber. The apparatus comprises a shield for lining at portion of the interior of a...
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6790034 |
Kiln plant control system
A controller for a kiln plant, typically a cement plant, has a thermodynamic controller which measures a number of variables including the kiln hood temperature and one or more output gas...
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6773259 |
Continuous solid waste derived fuel feed system for calciner kilns
A system is disclosed for continuously feeding and burning solid waste derived fuel (SWDF) material in the calciner of a calciner kiln comprising a calciner combustion chamber, a kiln feed for...
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6691628 |
Method and apparatus for thermal processing of powder raw materials
In the manufacture of cement clinker from cement raw meal, sulfide-containing raw materials or raw materials with a high TOC (total organic carbon) level can be used for cement manufacture, which...
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6688883 |
Apparatus for oxygen enrichment of cement kiln system
The invention in its various embodiments includes an apparatus and a method for improving combustion in a cement kiln system. The apparatus in one embodiment includes a precalciner and an oxygen...
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6641392 |
Method for regulating a roasting furnace
The invention relates to a method of regulating a roasting furnace in fluidized bed roasting. Part of the roasting furnace grate is separated off into a separate grate section, known as the...
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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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6601541 |
Method of producing steam and calcined raw meal
A method of producing a calcined raw meal and of producing additional steam in an existing steam generator comprises the following steps: pulverized raw meal, hydrocarbon, primary air and secondary...
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6599123 |
Method to produce cement clinker using high sulfur content fuel
This describes a method for producing cement clinker using petroleum coke with a sulfur content over 4.5% by weight, in conventional equipment and facilities, wherein said method comprises the...
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6595772 |
Method and apparatus for the thermal treatment of mealy raw materials
To create a calcinator for a cement clinker production line which is connected to the rotary tubular kiln in series and which is equipped with double firings, in which it is possible expediently to...
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6544032 |
Method and installation for heat-treating fine-grained products
A method and apparatus for heat treatment of fine-grained material. In order to reduce the nitrogen oxide content of the exhaust gas from the combustion zone, a region of the calcination zone is...
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6514073 |
Resist processing method and resist processing apparatus
A resist processing method includes (a), to a substrate having a circuit pattern with an uneven surface formed thereon, coating a photoresist solution to, by doing so, form a photoresist film, (b)...
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6485295 |
Equipment for calcination
An equipment for calcination for precalcining of powdered materials before their burning in a sintering equipment is inserted between the last but one cyclone ( 72 ) of connected cyclone exchanger...
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6461153 |
Method for desulfurization of off-gases of a system for the manufacture of cement clinker
A system for the manufacture of cement clinker from cement raw meal in which the off-gases of the cement clinker production line not only undergo denitrification but also undergo desulfurization,...
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6447288 |
Heat treating apparatus
Apparatus for heat treating a heat treatable material including a housing having an upper opening for receiving a heat treatable material at a first temperature, a lower opening, and a chamber...
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6394793 |
Method and apparatus of cooling heat-treated work pieces
A method and apparatus for cooling heat-treated metallic work pieces, particularly jet engine components that are normally round in shape, have a complex radial cross-section, and are subject to...
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6383283 |
Control of cement clinker production by analysis of sulfur in the end product
Cement clinker is produced using high sulfur fuels by combusting high sulfur fuel within a kiln. The feed material is introduced at an inlet of preheater of the kiln and is sintered by the...
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6375456 |
Combustion process applicable to the manufacture of cement
Combustion process especially applicable to cement works, in which process it is desired to use fuels which are difficult to ignite. To do so, a flame comprising a primary zone and a secondary zone...
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6345981 |
Controlled solid fuel thermolysis in preheater/precalciner kilns
A method and apparatus for controlling the combustion of fuel modules charged into a preheater or precalciner kiln above the transition shelf, typically into the riser duct, is described. The...
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6309210 |
Kiln universal oxygen enrichment
A kiln is provided with oxidant injection locations upstream of air blowers which blow air into the kiln. The addition of oxygen into the kiln increases the cooling capacity of a clinker cooler,...
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6293787 |
Method of regulating the flue gas temperature and voltage supply in an electrostatic precipitator for a cement production plant
A cement production plant and method of regulating the flue gas temperature in a cement production plant. The cement production plant includes a kiln, a flue gas conditioning device, a mill and an...
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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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6287110 |
System for the thermal treatment of meal-like raw materials
In order to create a calcinator preceding the rotary tubular kiln and equipped with secondary firings in which inert fuels that are difficult to ignite or, respectively, difficult to burn...
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6276306 |
Apparatus for recovering hydrocarbons from granular solids
An apparatus (10) for recovering hydrocarbons or other volatile material from granular solids includes an infeed conveyor (20) that moves the mud, containing a mixture of particulate solids and...
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6257877 |
Kiln plant and method for manufacturing cement
The present invention relates to a kiln plant and a method for manufacturing cement. The kiln plant comprises a kiln for burning clinker, a cooler, a calciner followed by a separation cyclone and a...
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6241514 |
Oxidant-driven dust recycling process and device for rotary kilns
A kiln adapted to recycle kiln dust includes a recycle dust pipe in fluid communication with an oxidant stream to increase the concentration of oxygen in the fluidized recycle dust before the...
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6210154 |
Treatment of exhaust gases from kilns
Emission of nitrogen oxides from a mineral-burning process, for example a cement-manufacturing process, is reduced by passing the exhaust gas from the rotary kiln in which the mineral raw materials...
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6183244 |
Control of cement clinker production in a wet process rotary kiln by analysis of sulfur in the end product
An apparatus for producing cement clinker using a high sulfur fuel includes a wet rotary kiln, at least one sulfur analyzer, a controller, and a burner. The wet rotary kiln has a first end and a...
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6183242 |
Rotary kiln for forming lightweight aggregate from flyash and sewage sludge
A method for producing a lightweight aggregate by treating flyash and sewage sludge. The flyash and sewage sludge are mixed together and agglomerated into pellets. The pelletized agglomerate is fed...
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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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6146133 |
Process for the recycling of residues for the production of portland cement clinker
The present invention concerns a process for the production of cement clinker in rotary kilns with substitution of primary raw materials and fuels by use of residual materials containing minerals...
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6142771 |
Control of cement clinker production using high sulfur fuel in a Lelep-Lepol travelling grate rotary kiln by analysis of sulfur in the end product
A method of producing cement clinker using a high sulfur fuel includes introducing raw material into a Lelep-Lepol travelling grate; drying and heating the raw material in the Lelep-Lepol...
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6119607 |
Granular bed process for thermally treating solid waste in a flame
The process is conducted in an incinerator installation comprising i) a generally vertical, cylindrical riser pipe, ii) a vertically extending annular chamber surrounding the riser pipe and...
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6099301 |
Feed apparatus for batch preparation feed mixture for feeding into smelting furnace
Feed apparatus for treating and feeding lumpy or granular material to a smelting furnace, which apparatus contains a plurality of silos or sub-silos in which said material is contacted with a gas....
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5989018 |
Lime sludge feed arrangement
A method and apparatus for supplying lime sludge to a rotary kiln guides the flow of the lime sludge into the kiln, and the flow of flue gases out of the kiln, in distinct paths so that contact...
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5975891 |
Method for reducing NO.sub.x emission from a kiln plant
There is disclosed a method for reducing the NOx emission from a kiln plant for heat treatment of raw materials, in which kiln plant fuel can be fired in at least three zones an amount c of fuel is...
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