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| Number | Title | Issue Date |
| 8177549 | Method and apparatus for processing of materials A method and apparatus processing materials including medical waste, municipal waste, along with other wastes, and processing materials; the apparatus comprising an elongate pressure vessel of generally cylindrical configuration having an inlet end, and an end cap f... | 05/15/2012 |
| 7866977 | Rotary tubular kiln for the production of activated charcoal The subject of the invention is a rotary tube (1), in particular for a rotary tubular kiln for the production of activated charcoal, according to the invention the rotary tube (1) being provided on its outside with at least one reinforcing element (... | 01/11/2011 |
| 7811083 | Rotary tubular kiln useful for the production of activated carbon and having a modified geometry of the rotary tube The invention has as subject matter a rotary tube, especially for a rotary tube kiln for the production of carbon, with several mixing elements arranged in the inner space of the rotary tube for a thorough mixing of a charged material. The rotary tube comprises a tr... | 10/12/2010 |
| 7354266 | Replaceable lump breaker system for a rotary kiln A rotary kiln for pyroprocessing particulate material includes a cylindrical kiln shell supported for rotation about a longitudinal central axis. The kiln has a discharge opening that includes a lump breaker system. The lump breaker system includes multiple insert r... | 04/08/2008 |
| 7311519 | Raw material feeding apparatus for rotary hearth furnace The invention provides a raw materials feeding apparatus capable of uniformly dispersing and feeding into a furnace agglomerated raw materials that are likely to undergo dusting, deformation and mutual adhesion. In a raw material feeding apparatus for a rotary heart... | 12/25/2007 |
| 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 energy into the kiln to reduce or eliminate stratification o... | 06/12/2007 |
| 7204636 | Granular and aggregate blending, cooling and screening rotary drum A rotary drum configured for the efficient blending, cooling, and screening of granular products having an outer cylindrical shell, an intake end, and an exit or discharge end. The rotary drum is normally rotated at a predetermined speed by a conventional drive pack... | 04/17/2007 |
| 7172414 | Rotary tubular kiln for the production of activated carbon The present invention relates to a rotary tube (1), in particular for a rotary tubular kiln for the production of activated carbon, said rotary tube (1) having a plurality of mixing elements (3), in particular metal turning plates, said mixing e... | 02/06/2007 |
| 7111565 | Rotating grate for the combustion of slag producing fuel In a rotating grate having a rotational-symmetrical shape having an axis of rotation which is inclined against a horizontal plane by more than 34°, and which encloses a combustion chamber for the combustion of slag-forming fuel, which is locked on a lower end and i... | 09/26/2006 |
| 7104788 | Device for purifying and/or decontaminating polyester The invention relates to an apparatus for cleaning and/or decontaminating polyester, in particular polyethylene terephthalate (PET). The apparatus has an at least partially heated rotary tubular furnace to be fed with a mixture of polyester and an alkaline material ... | 09/12/2006 |
| 7033167 | Device for purifying and/or decontaminating polyester The invention relates to an apparatus for cleaning and/or decontaminating polyester, in particular polyethylene terephthalate (PET). The apparatus has an at least partially heated rotary tubular furnace to be fed with a mixture of polyester and an alkaline material ... | 04/25/2006 |
| 6929393 | Asphalt production plant An asphalt production plant includes an asphalt binder storage tank, a mixer for mixing asphalt binder and aggregate materials, an asphalt binder pumping system for conveying asphalt binder to the mixer and an asphalt binder metering system for controlling the rate ... | 08/16/2005 |
| 6901868 | Plant for the thermal treatment of material and operation process thereof The plant for the thermal treatment of material, in particular scrap material, comprises at least a reaction zone within a rotary kiln having the longitudinal axis inclined of an angle in the range 0°±45° with regard to an horizontal plane and provided of first h... | 06/07/2005 |
| 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 |
| 6860735 | Rotary kiln Disclosed is a rotary kiln that can be used efficiently in drying, dry distillation and incineration of various garbage and industrial wastes. The rotary kiln comprises a cylindrical furnace body (10) disposed to incline at a small angle from the horiz... | 03/01/2005 |
| 6749425 | Indirect heating furnace An indirect heating furnace heats a substance in a reaction tube with a high-temperature combustion gas without contact between the substance and the combustion gas. The reaction tube is a stationary ceramic tube. A combustion device for supplying said heating high-... | 06/15/2004 |
| 6726351 | Apparatus and method for controlling the flow of material within rotary equipment The present invention is to a method and apparatus for changing the flighting (20) within a mixing drum (12). A plurality of radially spaced apart doors or paddles (30) are connected to one of the two adjacent supports (60). Each door or ... | 04/27/2004 |
| 6705859 | Tapered grizzly bars for lime kiln A grizzly bar device for a rotating kiln having an annular array of bars having at least two adjacent bars, wherein the thickness the bars is reduced in lateral and radial directions, and gap between the adjacent bars increases in width as the bars extend laterally ... | 03/16/2004 |
| 6688884 | Rotary kiln heat exchanger and method of assembling same Rotary kiln heat exchangers having precast hub and leg assemblies are disclosed. The hub and leg assemblies include interlocking features which secure the heat exchanger components together. A method of installing such heat exchangers in rotary kilns is a... | 02/10/2004 |
| 6685465 | Drum heater with hot gas conduit segments, in particular for asphalt recycling A rotary drum heater for mixing asphalt with a hot gas introduced into the drum by gas burners is disclosed. The drum has an inlet opening for material to enter the drum to be processed and an outlet opening for material to exit. The hot gas is blown into... | 02/03/2004 |
| 6638062 | Sand and stone screw heater An axially rotatable materials handling apparatus for handling a mixture of solid particulate and water, includes a heater mounted on the housing that can transfer heat to the mixture to prevent or thaw frozen water inside the apparatus. The heater can be... | 10/28/2003 |
| 6474985 | Toothed grate for rotary kiln peripheral discharge openings A rotary kiln for pyroprocessing particulate material includes a cylindrical kiln shell supported for rotation about a longitudinal central axis. The kiln has a plurality of circumferentially spaced peripheral openings provided in the kiln shell near its ... | 11/05/2002 |
| 6447289 | Rotary drum roller support adjustable on a skew axis A support stand for supporting an elongated rotary drum for rotation about a longitudinally extending drum axis includes a lower portion extending upwardly from a base to a tilted top extending in a plane of tilt; a correspondingly tilted upper portion mo... | 09/10/2002 |
| 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 pressurizes the preheated fuel and a heater heats the preheated an... | 04/16/2002 |
| 6365518 | Method of processing a substrate in a processing chamber Methods for processing a substrate are disclosed. In one embodiment of the invention, a substrate with a first layer and an oxide layer on the substrate is placed in a processing chamber. The oxide layer is removed while the substrate is at a first temper... | 04/02/2002 |
| 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 are reduced to ash; enhancing combustion by tumbling the bur... | 08/28/2001 |
| 6257878 | Preformed modular trefoil and installation method A trefoil for a rotary kiln is provided that has at least three spoke-like refractory legs. Each one of the legs extends radially outwardly from a center of the trefoil; spans approximately from the kiln shell to the center of the kiln; is pre-formed outs... | 07/10/2001 |
| 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 |
| 6185842 | Apparatus and methods for controlling the temperature of exhaust gases in a drum mixer A inclined rotary drum mixer has flights for forming a veiling pattern of particles across the width of the drum for a substantial axial extent. The drum has a burner for flowing hot gases of combustion in heat transfer contact with the particle or aggreg... | 02/13/2001 |
| 6186778 | Device for driving a cylinder in rotation The invention relates to a device for driving a cylinder in rotation about its longitudinal axis, and includes a ring gear perpendicular to the cylinder axis; truncated rollers arranged on each side of the ring gear, at least one of which is a drive rolle... | 02/13/2001 |
| 6174362 | Processing equipment and method for a pulverulent calcium sulphate material and novel hydraulic binder A method for processing a pulverulent calcium sulphate material in order to obtain a hydraulic binder is described, including combining the following two successive processing steps: (a) heating the pulverulent material in a curing tunnel (1) at a tempera... | 01/16/2001 |
| 6132560 | Rotary drum cooler having adjustable lifters A rotary drum cooler having a shell for cooling particulate material (e.g. coke particles) wherein the volumetric capacity of the lifters within the shell which lift the material from the bottom of the shell to the exit thereof can be adjusted to thereby ... | 10/17/2000 |
| 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 |
| 6027338 | Furnace and method for firing ceramics A furnace for manufacturing ceramics is disclosed. The furnace contains a cylindrical heat resistant container, a furnace body for heating the cylindrical heat resistant container, and driving means for driving the cylindrical heat resistant container. Th... | 02/22/2000 |
| 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 |
| 5997289 | Rotary calciner with mixing flights A rotary calciner for the treatment such as thermal treatment of particulate solids equipped with riffle flights, each in the form of an inverted V shape. The flights are arranged in at least two rows on the inner circumferential wall of the calciner, the... | 12/07/1999 |
| 5975752 | Fabricated steel lifter for rotary kiln A fabricated steel lifter for enhancing mixing of particulate material in a rotary calcining kiln. The lifter is fabricated from a weldable heat resistant alloy and includes a base plate, an anchor post, a sole plate, a face plate attached to the sole pla... | 11/02/1999 |
| 5946815 | Apparatus for roasting legumes An apparatus and method for roasting legumes such as soybeans to enhance their nutritional properties. Raw legumes are introduced to a roaster having an oven section and a steeping section downstream of the oven section. The raw legumes are heated to a se... | 09/07/1999 |
| 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 cylindrical body, a small portion of waste resin is partial... | 07/27/1999 |
| 5873714 | Rotary kiln having a lining with a wave-shaped inner face A kiln for pyro-processing a variety of materials, such as cement, lime, lime sludge, clay, shale, magnesite, dolomite, and other minerals, includes a continuously-rotated, cylindrical, elongated shell having a feed end for receiving the material, a proce... | 02/23/1999 |
