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8764438 Cement system and method for operating a cement system  
In the method according to the invention for operating a cement plant, the raw meal is preheated in a preheating zone, the preheated material is precalcined in a calcining zone and the precalcined...
8695515 Rotary kilns for alternative fuels  
A method for burning raw materials by which method the raw material and a secondary fuel are separately introduced to one and the same rotary kiln in which the raw material as well as the...
8647430 Process for manufacturing cement clinker in a plant, and cement clinker manufacturing plant as such  
The invention relates to a process for manufacturing cement clinker in a plant having a cyclone preheater, a precalcination reactor, a rotary furnace and a clinker cooler. In the process, the flue...
8470290 Methods and apparatus for industrial waste recovery  
This application concerns methods and apparatus for use in industrial waste recovery operations such as recovery of non-consumed chemicals in industrial processes, with recovery of quick lime in a...
8267685 Method of mixing high temperature gases in mineral processing kilns  
A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic...
8161961 Gas-heated laundry dryer having a heating device  
A gas-heated laundry dryer having a heating device. The heating device includes a gas burner, a valve with a gas nozzle configured to supply primary air for formation of a flame and a tubular...
8137099 Method for calcination of a material with low nochi emissions  
The invention relates to a method for calcination of a material in which said material is heated by contact with a heat source essentially generated by means of a flame produced with at least one...
7828548 Reduction kiln  
Disclosed is a process for reducing metallic oxide or sulfide materials in a rotary kiln and a rotary kiln for reducing such materials. The materials are heated in a reducing atmosphere as they...
7628964 Apparatus for treating lime mud  
A method for feeding lime mud into a lime kiln including a rotary kiln shell having an interior between a first end wall and a second end wall, the method including: feeding the lime mud into a...
7229281 Method of mixing high temperature gases in mineral processing kilns  
A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic...
6918194 Heating configuration for a drier  
A heating configuration for a drier, particularly for a laundry drier, has a burner with a burner head, a first heating channel with an inlet opening and an outlet opening, and a second heating...
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...
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...
6468074 Rotary kiln for calcination of light aggregate cement  
A rotary kiln for calcination of light aggregate cement comprises a calcination kiln body, a heavy-oil combustion device, and a cooling device, wherein the calcination kiln body is formed in a...
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...
6371757 Kiln fuel system  
A kiln fuel system and method for producing cement. The system includes a tank for storing a fuel and a suction heater for drawing and preheating the fuel from the tank. A pressure station...
6322355 Method and apparatus for disposing of waste dust generated in the manufacture of cement clinker  
A method of disposing of undesirable chemical compounds in waste dust generated in a first kiln in the manufacture of cement clinker by using the dust and slag as the feedstock material to a...
6279492 Method of thermally decomposing waste materials  
A method of burning tires in a horizontally rotating combuster includes the steps of loading the tires into a rotating combustion chamber through a traveling air lock and burning them until they...
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...
6203315 Rotary burner for solid fuel  
A device for the combustion of solid fuel in the form of granules, pellets, chips or other fragmented or finely divided form, comprising a rotary reactor drum (1), which forms the main combustion...
6077072 Prefferential oxygen firing system for counter-current mineral calcining  
Superior heat transfer in a kiln is achieved by the use of at least one injector which injects both an oxidant, preferably containing oxygen, and a secondary fuel into the kiln. The injectors are...
6042370 Graphite rotary tube furnace  
A rotary tube furnace suitable for operation in controlled atmospheres at temperatures in the range of 1500° to 2800° comprises a generally horizontal rotatable graphite tube slidably supported on...
6036484 Process for reprocessing slag and/or ash from the thermal treatment of refuse  
In a process for reprocessing slag and/or ash from the thermal treatment of refuse, the refuse (1) is pyrolyzed, gasified or partially combusted in a first process step, heavy-metal-containing...
6012918 Method and apparatus for producing cement clinker  
Cement clinker is produced from powdered and fine-grained raw material by the use of a vertical stage cyclone preheater, a precalcinator, a kiln, and a cooler. The raw material is preheated by...
5997288 Apparatus for thermal removal of surface and inherent moisture and limiting rehydration in high moisture coals  
A flighted, horizontally inclined rotary retort, heated externally by flame, hot gases, steam or other sources of heat. The retort shall have sufficient flight area to transport the coal through...
5967062 Rotating tire combuster  
An apparatus burns tires in a horizontally rotating combuster. The tires are loaded into a rotating combustion chamber through a traveling air lock and burned until they are reduced to ash....
5947720 Apparatus for preparing materials for road repair  
Portable-to-site apparatus is operative to produce ready-to-lay traffic-wear surfacing and/or road etc course materials. A drum-like container is supported for axial rotation within insulation...
5938433 Soil remediation system having heat-loss dust decontamination apparatus  
A soil remediation system having apparatus for decontaminating particulate matter or dust entrained in and exhausted with a hot gas stream from a rotary drum wherein the particulate matter is...
5927216 Burner apparatus  
A burner apparatus uses fuel derived from waste resin. The burner includes a cylindrical body in combination with an oxygen supplier, which form an oxygen deficient atmosphere. While rotating the...
5908291 Continuous cross-flow rotary kiln  
A direct heat rotary calciner and method for providing improved thermal treatment of particulate material comprises a rotary tube having a plurality of screened apertures along the length thereof....
5902040 Asphalt plant including flame arrester  
An asphalt plant includes a rotary dryer, a rotary mixer, a conduit for transferring gas from the mixer to the dryer, and a flame arrester in the conduit adjacent to the dryer to prevent a fire...
5822881 Method for conditioning refuse  
A method and apparatus for treating refuse by non-combustibly shrinking plastics in the refuse. The trash is heated to a temperature of at least 250° to 500° for a minimum period of time. A...
5819437 Quiet operating industrial dryer with a combustion burner grate  
An improved industrial dryer adapted for more efficient, quieter and safer operation. The dryer blower has a relatively large size blower wheel adapted for generating high volume air flows at...
5791267 Waste pyrolysis process and installation having a preheating unit  
The present invention relates to an installation intended for the pyrolysis of solids, comprising a rotary furnace (1) inside which pyrolysis is achieved, and a means (21) for heating the rotary...
5785516 Conveyable heating apparatus  
A conveyable heating apparatus which is operable in a working place of repairing a paved road and can be carried on a vehicle. An asphalt-reclaiming apparatus 1 embodying one example of the...
5771820 Method for the thermal treatment of waste material, particularly refuse, and a rotary tubular furnace for applying the method  
A waste material, particularly refuse, is conveyed through a combustion chamber while simultaneously being mixed and is treated with a gaseous oxidizing agent. The combustion chamber comprises a...
5746590 Heating chamber with inner heating tubes and method of replacing the heating tubes  
Heating chamber rotatable about a longitudinal axis thereof and having a plurality of heating tubes located in the interior thereof, a first end plate to which each of the heating tubes is secured...
5716205 Rotatable heating chamber for solid material  
A heating chamber for solid material, preferably a low-temperature carbonization drum for waste, is rotatable about its longitudinal axis and is equipped with a number of heating tubes that are...
5713139 Quiet operating industrial dryer  
An improved industrial dryer adapted for more efficient, quieter and safer operation. The dryer blower has a relatively large size blower wheel adapted for generating high volume air flows at...
5704782 Wear lining for a rotary furnace  
A wear lining for a rotary furnace of an incineration installation for, for example, chemical waste, wherein the wear lining comprises tapered bricks (1, 2, 3) which are installed in the furnace...
5688117 Rotatable heating chamber with internal tubes for waste  
A low-temperature carbonization drum for waste includes many heating tubes located in the interior. The tubes are each secured by one end to a first end plate and by the other end to a second end...
5685241 Lined lateral rotary kiln incinerator  
A furnace body (4) consists of drums (D1, D2, and D3) which are supported and drove by rotation drive assemblies (3) independently of each other. Each drum has open ends at both sides, and...
5632616 Method and apparatus for injecting air into long cement kilns  
A method and improved apparatus is disclosed for improving combustion efficiency and reducing emission of gaseous pollutants during the manufacture of cement in conventional long rotary kilns. Air...
5628126 Revolving drum drying apparatus and method  
Apparatus for drying a wet material such as sewage sludge comprises a drum (11) mounted for revolution about a horizontal axis and containing interconnected inner (22) and outer (21) concentric...
5564349 Apparatus for shooting whole automobile tires into a kiln  
A description is given of an apparatus for shooting of whole automobile tires, preferably into a cement rotary kiln, which apparatus comprises a gun barrel, a charging device for placing...
5482458 Heat treatment of expansible materials to form lightweight aggregate  
A rotary kiln (10) is employed which is inclined downwardly from its charge end (12) to its discharge end (14) and has a maximum length to breadth ratio of 5:1. The interior space of the kiln (10)...
5455005 Material remediation in multi-function heating drum  
Material remediation apparatus includes a remediation drum through which materials, such as soil contaminated with hydrocarbons, are advanced from a feed end to a discharge end of the drum. A tube...
5431560 Device for supplying gas to a cylindrical rotary kiln  
A device for supplying gas to a rotary cylinder by means of a slip ring channel is described, a relative movement between rotating part and stationary part of the slip ring being permitted.
5415112 Incinerator  
An incinerator is described which includes a cylindrical rotary furnace slightly inclined downwardly in its longitudinal direction for combusting material introduced into an entrance, a...
5305696 Process and system for treating contaminated particulate soil compositions  
An improved process and apparatus for treating particulate soil composition to remove volatilizable organic materials therefrom comprises separating fine particles of the soil from a gaseous...

Matches 1 - 50 out of 183 1 2 3 4 >