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| Number | Title | Issue Date |
| 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 |
| 6969249 | Aggregate dryer burner with compressed air oil atomizer A swirl-type internal flame recirculation burner apparatus and method as used to fire asphalt plant aggregate dryers, air heaters and calcining kilns and method includes a compressed air oil atomizer assembly. The burning and swirling fuel and primary main combustio... | 11/29/2005 |
| 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 U-turn for saving construction site and is composed of a feedi... | 10/22/2002 |
| 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 |
| 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 |
| 5664882 | System for concurrently remediating contaminated soil and producing hot mix asphalt A system for concurrently remediating contaminated soil and producing hot mix asphalt includes a single inclined rotary drum; a burner assembly with a burner head spaced intermediately within the drum and oriented to direct a flame and hot gas stream upst... | 09/09/1997 |
| 5616023 | Rotary kiln with a polygonal lining A rotary kiln having a polygonal lining is disclosed for pyro-processing cement, lime, other minerals, as well as other materials. Specifically, utilizing a polygonal lining of brick or a refractory or ceramic material having between 3 and 12 sides improv... | 04/01/1997 |
| 5460518 | Rotary kiln with a cast polygonal lining A rotary kiln having a polygonal lining is disclosed for pyro-processing cement, lime, other minerals, as well as other materials. Specifically, utilizing a polygonal lining of a refractory or ceramic material having between 3 and 12 sides improves the he... | 10/24/1995 |
| 5393225 | Rotating tube heat treatment installation, in particular rotating tubular kiln, with indirect heat feed or dissipation A rotating tube heat treatment installation, for example a rotating tubular kiln for the thermal splitting of MgSO3, or a slag cooler for the separation of salts and aluminum, comprises as the main replaceable component, a rotating tube (1) whi... | 02/28/1995 |
| 5320524 | Gas scrubber for wet process rotary kilns In the initial part of a wet-process rotary kiln, means to decrease the amount of product dust entrained in the escaping combustion gases. Pipes running lengthwise of the kiln, in the region where the feed slurry is wet enough to flow, fill with slurry as... | 06/14/1994 |
| 5299933 | Rotary kiln with a polygonal lining A rotary kiln having a polygonal lining is disclosed for pyro-processing cement, lime, other minerals, as well as other materials. Specifically, utilizing a polygonal lining of brick or a refractory or ceramic material having between 3 and 12 sides improv... | 04/05/1994 |
| 5203693 | Rotary drum dryer having internal flights A rotary drum dryer is disclosed which is useful in the production of asphalt paving composition. The drum incorporates a burner which defines a combustion zone, and a novel dam and flight construction is mounted to the interior of the drum so that the fl... | 04/20/1993 |
| 5190371 | Method and plant producing a bituminous paving mixture A drying and mixing plant for producing a bituminous paving mixture comprises a drying and mixing drum (10) which is supported by a hydraulic cylinder (16) or other lifting means so that the inclination of the drum axis may be altered. By choosing a suita... | 03/02/1993 |
| 5122190 | Method for producing a hydraulic binder A method for producing a hydraulic binder using partially calcined raw meal entrained in the kiln off gases. The raw meal flow form the lowermost cyclone is interrupted at or near the junction of the meal chute, kiln inlet and riser duct. This flow interr... | 06/16/1992 |
| 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 |
| 5083870 | Asphalt plant with segmented drum and zonal heating A blacktop plant has a rotatable cylindrical mixing drum. The drum is disposed within a chamber which is divided into two chambers by a baffle through which the drum penetrates. The forward section of the heating chamber preheats the material which is fed... | 01/28/1992 |
| 4993942 | Lime sludge kiln A kiln for reclaiming quick lime for calcium carbonate sludge formed in the production of cooking liquors in a wood pulping process for the production of paper. The kiln provides increased output with lower energy input due to: measurement and control of ... | 02/19/1991 |
| 4880379 | Method for transforming a rotary kiln intended in particular for the manufacture of cement, kiln obtained by this method and burning line equipped with this kiln The present invention concerns a method for transforming a rotary kiln equipped with a planetary cooler and intended in particular for the manufacture of cement, a kiln obtained by this method and a burning line equipped with this kiln, the kiln being con... | 11/14/1989 |
| 4781580 | Indirectly heated rotary tubular kiln In a rotary tubular kiln for carrying out gas-solids reactions, comprising an indirectly heated, rotatable reaction tube with inner baffles which is provided with charging and removing devices for solid and gas inlet and outlet lines, the improvement whic... | 11/01/1988 |
| 4748921 | Method for removing flammable hazardous liquid waste from soils A method of removing hazardous flammable hydrocarbons from soils comprises introducing the contaminated soil into a rotatable drum open at only one end, introducing flame and hot gases of combustion in the drum while rotating it to substantially expose th... | 06/07/1988 |
| 4724777 | Apparatus for combustion of diverse materials and heat utilization A method and apparatus is disclosed for combustion of diverse materials, particularly combustible solids, liquids or gases, such as sewage sludge, refuse, coal, refinery sludge, tar sands, coal shale, coal tailings and spent foundry sand. A rotary combust... | 02/16/1988 |
| 4678491 | Reduction of material buildup by means of gas jet Exhaust from a melting vessel passes through a transition section and into a rotary kiln to preheat batch material. A gas jet injects a high velocity gas stream into the transition section to alter its flow and reduce buildup of material due to entrained ... | 07/07/1987 |
| 4668185 | Process and apparatus for drying organic material in a rotary dryer A rotating drying chamber has a hot zone 6 and a cooler zone 10. The temperature in the hot zone 6 is high, whereas the temperature in the cooler zone 10 is lower. The material to be dried is held in the hot zone 6 for a shorter period of time than it is ... | 05/26/1987 |
| 4659356 | Kiln construction An apparatus for and method of adjusting the effective length of a rotary kiln. Preheating gas enters the kiln, passes over a portion of the material to be heated and exits the kiln through an axially extending exhaust duct. Changing the length of the duc... | 04/21/1987 |
| 4624634 | Method and arrangement for improving the heat economy in rotary kilns A rotary kiln, in particular, a kiln for reburning of lime mud, wherein the drying and intermediate zones of the kiln chamber are furnished in part with turbulence-forming baffle arrangements to produce a turbulent motion in the hot combustion gases and t... | 11/25/1986 |
| 4592150 | Grain roasting drum construction A grain roasting machine includes an elongated hollow roasting drum mounted for rotation about its fore-and-aft longitudinally extending central axis and a burner for producing a roasting flame within the drum in a direction extending generally longitudin... | 06/03/1986 |
| 4530651 | Installation for treating in long kilns with a half-dry process wet slurries of raw materials for their conversion into portland cement clinker An installation is disclosed for processing a wet slurry of raw materials for cement manufacture having from 28% to 45% of water, the installation comprising a horizontal centrifugal separator connected to an extruder which produces slugs of partially dew... | 07/23/1985 |
| 4507081 | Apparatus with heat exchange means for treating solid, granular and aggregate materials An apparatus (14) embodying heat exchange means for treating solid, granular and aggregate materials, and in particular for treating spent, i.e., used, chemically bonded foundry sand. The subject apparatus (14) includes a rotatable first chamber means (16... | 03/26/1985 |
| 4427376 | Apparatus for heating aggregate, recycled asphalt and the like A drum-type drier and/or mixer in which particulate material such as aggregate or recycled asphalt is introduced into the forward end of the drum. A burner at the rear end of the drum directs its flame forwardly through an elongated firing tube which exte... | 01/24/1984 |
| 4293228 | Drum for an asphalt mixing apparatus Annular lands are mounted on the inner periphery of the tubular shell of a drum for an asphalt mixing apparatus of the type wherein the drum is disposed on a slant and rotated so that flighting arranged about the inner periphery of the drum lifts and drop... | 10/06/1981 |
| 4260373 | Method and apparatus for drying and preheating small metallic particles A system for drying and preheating small metallic particles such as chips, turnings, borings and the like to remove volatiles therefrom which includes a dryer working in conjunction with a briquetting press. The dryer includes a drying and preliminary com... | 04/07/1981 |
| 4125437 | Distillation system Distillation system for distilling shale oil. Shale is inserted into a rotating retort which displaces the shale throughut the retort extended length. The rotating retort is mounted to a multiplicity of enclosed housings through rotative bearings. The enc... | 11/14/1978 |
| 4060042 | Incinerator This invention relates to incinerators for the disposal of urban waste. More particularly, it relates to incinerators of the type comprising a rotary furnace of highly heat-resistant steel, having a horizontal axis of rotation and comprising a drying cham... | 11/29/1977 |
| 4053365 | Rotary calciner A modified rotary kiln suitable for calcining normally solid carbonaceous material, having adapted thereto at one end a firing crown and means for admitting combustible gases or liquids and air; a feeding means for such solid carbonaceous material to be c... | 10/11/1977 |
