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| Number | Title | Issue Date |
| 8083520 | Reactor for direct utilization of external radiation heat for thermal or thermo-chemical material processes A reactor for direct utilization of external radiation heat includes a containment can having a longitudinal axis, an external driving mechanism for controllable rotating the containment can and a cavity having a cylindrical shape. The cavity is partially lined with... | 12/27/2011 |
| 7331119 | Apparatus and method thermally removing coatings and/or impurities An apparatus for thermally de-coating and/or drying coated and/or contaminated materials comprises a support and an oven pivotally mounted to the support. The oven has charging portion for receiving material to be treated and a changeover portion. Incorporated withi... | 02/19/2008 |
| 7207797 | Oven for the treatment of contaminated materials An oven (10) has a rotatable portion (12, 14) comprising an outer chamber (20) and an inner treatment chamber (22) within the outer chamber. The inner treatment chamber is adapted to receive material for treatment and the oven has means (... | 04/24/2007 |
| 6892471 | Sludge dryer A material drying apparatus for substantially eliminating the liquid content of a sludge, the apparatus including a first stage operating at ambient pressure for heating the sludge; a second stage operating with partial vacuum for receiving heated sludge from the fi... | 05/17/2005 |
| 6875014 | Method for monitoring a combustion process, and corresponding device In a method for monitoring a combustion process, in which, in a oven, a substance arranged in a bed of the oven is converted under the supply of heat by way of firing by a flame, data of the flame and/or the substance in the bed being recorded by way of at least one... | 04/05/2005 |
| 6425685 | Process for reclaiming salvaged asphalt A process for reclaiming salvaged asphalt includes feeding salvaged asphalt mixed with new sands, stones and tar in a designed proportion into a double-layer drying machine including inner and outer gyroscopic drums; indirectly heating the salvaged asphal... | 07/30/2002 |
| 6244859 | Rotary kiln A rotary kiln (1) is equipped with a horizontal kiln drum (3), arranged rotatable and drivable in a furnace body (2), which kiln drum is closed at the charging and delivery side by end plates (4, 5) forming central charging or delivery openings (6, 7), re... | 06/12/2001 |
| 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 water-cooled split ring graphite bearings. The graphite ... | 03/28/2000 |
| 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 the retort in the predetermined time. The coal being process... | 12/07/1999 |
| 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. Material to be treated is passed through the rotating tube... | 06/01/1999 |
| 5906483 | Rotary film calciner An apparatus for drying/calcining comprises a horizontally extending rotatable drum and a center tube, concentrically positioned within the rotatable drum to provide an annular combustion chamber between the outer wall of the center tube and the inner wal... | 05/25/1999 |
| 5904105 | Device for combustion of moist fuel A device for combustion of moist fuel includes a combustion chamber with a moving fire grate disposed at a bottom portion thereof and a drum dryer located within the combustion chamber above the fire grate. The dryer drum rotates and includes therein an i... | 05/18/1999 |
| 5788481 | Carbon reactivation apparatus A carbon reactivation apparatus has a fossil fuel kiln adjacent to a rotary dryer and flue gas from the kiln flows through the dryer co-currently with carbon particles to provide a more efficient process than previously known. The apparatus has a rotary k... | 08/04/1998 |
| 5580242 | Rotary kiln A rotary kiln has a generally cylindrical housing centered on and extending along an axis inclined to the horizontal and having an upper upstream end and a lower downstream end and a drive that rotates the kiln about its axis. Particles to be heat-treated... | 12/03/1996 |
| 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 extending concentrically from the discharge end of the dru... | 10/03/1995 |
| 5393501 | 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 extending concentrically from the discharge end of the dru... | 02/28/1995 |
| 5382002 | Apparatus for heat treating a particulate material An apparatus for heat treating particulate material containing a combustible contaminant. The particulate material is fed into the upstream end of a rotary drum and is conveyed toward the downstream end of the drum. A fixed first tubular member is dispose... | 01/17/1995 |
| 5205225 | Apparatus for allowing thermal dimensional changes of metal parts in a retort mechanism Apparatus for allowing thermal dimensional changes of metal parts in a retort mechanism including, a retort chamber, a retort pipe axially extending within the retort chamber and having a material inlet and outlet portion, a retort auger axially extending... | 04/27/1993 |
| 5103743 | Method and apparatus for drying solid material A method and apparatus for drying solids such as bark, peat, wet coal or the like utilizes waste heat recovered from a rotary kiln. Solids are dried by simultaneously using both the radiation heat of the shell surface of the kiln and the heat of hot flue ... | 04/14/1992 |
| 5096415 | Reaction furnace A reaction furnace includes a rotating core within a heated shell, the core and shell defining an active annular zone. An interrupted helical screw carried by the core conveys material from an inlet at one end of the zone to an outlet at the opposite end ... | 03/17/1992 |
| 5067254 | Method and apparatus for modifying a veil of materials in a drum of a drying apparatus An improvement to a drum drying and mixing apparatus includes a baffle plate arrangement is supported externally of the drum adjacent one end thereof and is inserted longitudinally from that one end into the drum. Baffle plates of the arrangement are disp... | 11/26/1991 |
| 4961391 | Thermal treatment process for organically contaminated material A thermal treatment process employs an indirectly fired rotary kiln in which matrix material contaminated with organic substances such as dioxins, PCBs, PAHs, fuel oils, and the like is heated as the material is advanced through the kiln to cause componen... | 10/09/1990 |
| 4948365 | High-temperature, gas-burning furnace A novel high-temperature, gas-burning furnace has a rotating porous-ceramic bed, which serves the integral functions of wall insulator, thermal regenerator, combustion chamber, and radiant heater. The configuration permits high chamber temperatures (up to... | 08/14/1990 |
| 4941822 | Apparatus for heat treating contaminated particulate material An apparatus for heat treating contaminated particulate material and more particularly, an apparatus for reclaiming foundry sand. The apparatus includes a heated, inclined rotary drum and an auger projects into the upstream end of the drum and serves to f... | 07/17/1990 |
| 4870911 | Apparatus for waste disposal and method An incinerator pyrolyzer for continuously burning waste material characterized by a rotating kiln within a furnace chamber for incinerating waste material passing through the kiln. The kiln includes means for introducing reactants for chemically changing ... | 10/03/1989 |
| 4850861 | Apparatus for conductive drying loose The apparatus includes a housing 1 accommodating inner and outer tubes 2 and 4, respectively, arranged concentrically relative to each other. Lower ends of the tubes 2 and 4 are connected by a flange 15 to a disk-type feeder 14 the flange and feeder havin... | 07/25/1989 |
| 4836775 | Air cooled rotary kiln collar An air cooled rotary kiln collar for use in improving the delivery of preheated charge material from the rotary kiln to the second stage of a multi-stage heating process. Adjustable rate fans circulate air through an annular collar at the discharge end of... | 06/06/1989 |
| 4683664 | Apparatus for drying metal turnings or scrap Apparatus for the drying of ferrous or non-ferrous turnings or scrap comprises a vertical axis drier (1) in which a drum (2) which encloses a transporter (3) for the turnings in question is mounted transversely. The turnings are heated indirectly via the ... | 08/04/1987 |
| 4684342 | Method and apparatus for the thermal treatment of a batch of raw material An apparatus for the thermal treatment of a batch of raw material has a casing and a drum rotatably mounted in the casing, the drum being made of good thermally conductive material and being substantially closed off from the open atmosphere. A drive is pr... | 08/04/1987 |
| 4677843 | Roller oven for testing fluids An oven for testing fluid samples to determine the effects of temperature and various chemical additives on the rheological, filtration and chemical properties of the sample under simulated circulating conditions comprises an environmental chamber having ... | 07/07/1987 |
| 4649655 | Drilling mud dehydration system Apparatus for dehydrating slurries such as water based drilling fluids heavily laden with drill cuttings and other earth solids comprising a rotating drum which is heated by combustion of a fuel air mixture to generate relatively large quantities of combu... | 03/17/1987 |
| 4648836 | Rotary retort furnace A continuous rotary retort furnace includes an outer shell having first and second ends. A retort assembly extends through openings in the first and second ends. The retort assembly is supported by support devices at both ends external of the shell. The r... | 03/10/1987 |
| 4564505 | Process and apparatus for simultaneous material granulation and classification A process and apparatus for simultaneous feedstock material granulation and classification are provided which utilize applied heat to cause feedstock material to agglomerate, forming a uniformly sized granular product. The feedstock is fed onto a tilted r... | 01/14/1986 |
| 4541346 | Rotary high temperature reactor A rotary drum 2 is provided with vanes 26 extending longitudinally thereof defining passages 21 therebetween with gas to be fed to the reactor being fed only to those of the passages 21 the outlets from which into the reactor are covered by the solid mate... | 09/17/1985 |
| 4451231 | Drying of particulate material A process for the removal of volatile liquid from particulate material employing indirect heating of the particulate material by means of combustion gases resulting from the combustion of sulfur-containing fuel, and further employing purging of the thus h... | 05/29/1984 |
| 4443186 | Solar heated rotary kiln A solar heated rotary kiln utilized for decomposition of materials, such as zinc sulfate. The rotary kiln has an open end and is enclosed in a sealed container having a window positioned for directing solar energy into the open end of the kiln. The materi... | 04/17/1984 |
| 4400153 | Indirectly heated rotary calciner having weighted cylindrical extensions An indirectly heated rotary calciner or dryer for high temperature operation, whereby it is important to reduce cylinder stress to achieve a reasonable life expectancy of the heated section of a cylinder even when the most exotic of metal alloys is used f... | 08/23/1983 |
| 4398471 | Device and method for pyrolyzing waste materials This invention is a device for pyrolyzing waste materials comprising a low - temperature carbonizing reactor. The reactor includes a longitudinally extending tubular vessel adapted to be loaded with waste materials to be pyrolyzed and a flue gas duct whic... | 08/16/1983 |
| 4393603 | Dryer thermal efficiency The thermal efficiency of a dryer is improved by affixing to the shell of the dryer that contains the material to be dried projections which contact a heating medium surrounding the shell of the dryer and protrude into the interior of the shell. Heat is t... | 07/19/1983 |
| 4376343 | Method and apparatus for drying bagasse An outer cylindrical drum has an inner drum concentrically mounted therein in spaced relationship, to form coextensive outer and inner drying chambers that are connected to a common source of hot exhaust gases from a sugar factory boiler. Raw bagasse is f... | 03/15/1983 |
