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| Number | Title | Issue Date |
| 7021013 | Compensator for compensating thermal expansions A compensator (18) is provided for compensating thermal expansions of ducts or pipelines (10) for carrying flows of hot media, especially ducts that are lined with fire-proof material. The compensator (18) is easy to maintain and is relatively s... | 04/04/2006 |
| 6884064 | Burner mechanism for a rotary kiln A burner protection shield is provided at a distance and in an area below a burner lance that is used in a rotary kiln for the production of cement clinker. Such a mechanism enhances the useful lifetime of the burner lance. ... | 04/26/2005 |
| 6875267 | Process and device for feeding dispersible solid fuels into the calcinator of a cement clinker production line In order to make sure, for cement clinker production lines with blown injection of dispersible solid fuels such as, for example, coal dust, into the calcinator which is provided with fuel, that an open flame does not occur at the fuel injection point, it is proposed... | 04/05/2005 |
| 6855302 | Method for emission control of dioxin and/or furan waste gas pollutants in a cement clinker production line In order to provide a comparatively simple and cost-effective method for cement clinker production lines where especially raw materials and/or fuel/secondary fuel containing chlorine compounds and a partial gas extraction with an electrostatic dust collector as wast... | 02/15/2005 |
| 6845867 | Classifier for the classification of granular material A static V-classifier or cascade classifier having a stairway cascade (13) and oppositely arranged classifying flues (15) with upward extending and adjustable guide vanes (21) at their upper ends for altering the cut point of the classifier by c... | 01/25/2005 |
| 6837913 | Cyclone separator A hot gas cyclone separator is provided with a segmented dip tube whose smooth sheet metal dip-tube segments have tops which are securely fastened to a cap of the separator in hook like manner by U-shaped angle rails. The adjacent lower ends of the dip-tube segments... | 01/04/2005 |
| 6695911 | Method and installation for production of cement clinker In the production of cement clinker or cement with the addition of a cement additive (40), such as for example slag, which is ground in a closed-circuit grinding installation into slag meal (32) of equal fineness to cement, in order to utilize excess slag... | 02/24/2004 |
| 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 are uncontrollably incompletely burned in the upper cyclone... | 02/17/2004 |
| 6666680 | Multi-train installation for the production of cement clinker from raw meal A dual-train or multi-train installation for the production of cement clinker from raw meal includes several cyclone suspension heat exchanger trains which provide substantially equal gas and meal loads of the following gas-solid suspensions through use o... | 12/23/2003 |
| 6666394 | Milling installation In the production of meal-fine products by a milling process the milling material generated in a comminuting device is ordinarily separated at the desired grain size in a downstream sifter and the fine material (meal-fine product) obtained here is then se... | 12/23/2003 |
| 6655617 | Drive system for a tube mill A simply and compactly built drive system for a tube mill is provided whose force transmission is no longer threatened by flexures and other deformations of the grinding tube. A one-piece ring gear having a diameter less than or equal to the diameter of t... | 12/02/2003 |
| 6652272 | Device for sluicing a hot meal-form material In order to create a device like a shuttle sluice for sluicing or distributing a hot meal-form material flow, in particular for cement plant construction, whose shuttle valve or shuttle valves is or are easy and inexpensive to repair or renew in case of w... | 11/25/2003 |
| 6626662 | System for manufacturing cement clinker In order to provide a cement clinker production line with a calcinator connected to the rotary kiln and including a separate rotary drum-type reactor with the objective to safely burn even coarse secondary fuels in the drum-type reactor and also to evenly... | 09/30/2003 |
| 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 dispose of lumpy combustibles such as unchipped used tire... | 07/22/2003 |
| 6557790 | Circuit grinding apparatus with high-pressure roller mill and sifter In order to further develop a circuit grinding apparatus with a roller mill or roller press for material bed disintegration of granular material and with at least one integrated sifter, where the mill and the sifter are disposed within two stationary side... | 05/06/2003 |
| 6524099 | Method and apparatus for thermal treatment of mealy raw materials In order to create, for cement clinker production lines, a calcinator that is connected upstream from the rotary tubular kiln and is equipped with two firings, which enables on the one hand a high-grade calcinated raw meal and on the other hand an exhaust... | 02/25/2003 |
| 6523767 | Grinding roller and method for the manufacture thereof In order to create a surface armoring suitable for the autogenous wear protection with application of grid armoring technology that exhibits a long service life capability due to high wear-resistance and compressive strength and that can nonetheless be ma... | 02/25/2003 |
| 6517597 | Insertion element subject to thermal stress and wear, in particular, a segment for the assembly of a segmented cyclone dip tube A heat-resistant and wear-resistant insertion element or segment of a segmented dip tube suitable for use in a refractory-lined cyclone of a cement clinker production line. The insertion element, is capable of being fabricated and installed with a length ... | 02/11/2003 |
| 6508420 | Method and device for two-stage classification of granular material Two-stage classification of a granular material, in particular a cement grinding feed, is accomplished in two classifiers connected in series in such a way that the separative behavior or the separative action and thus the particle-size distribution of th... | 01/21/2003 |
| 6484416 | Apparatus for producing cement clinker It is required with respect to the production of cement clinker from wet slurry raw materials that are calcined to cement clinker in a drying-rotary pipe furnace, which is preceded by a cyclone suspension type heat exchanger system, after the materials ha... | 11/26/2002 |
| 6467967 | Shoe bearing for rotary drums such as for example tube mills A shoe bearing for a heavy rotary drum such as a cylindrical casing of a tube mill designed so that all the shoe bearing elements used at each bearing station are always uniformly loaded. One of the two outlying shoe bearing elements (11) is braced direct... | 10/22/2002 |
| 6468075 | Apparatus for thermal processing of raw material in meal form Cement clinker production apparatus having a precalcination stage connected upstream of a rotary kiln, in which precalcination stage a CO-containing reduction zone in the rotary kiln off-gas duct is employed for the purpose of reducing the pollutant NO | 10/22/2002 |
| 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, so that even sulfur-rich raw materials and fuels can be emp... | 10/08/2002 |
| 6447598 | Process for the thermal treatment of meal-form raw materials In order to create a process for the economical production of cement clinker in a cement clinker production line with a raw meal preheater, a precalcination stage, a rotary tubular kiln and a clinker cooler, in which the total oxygen excess required for a... | 09/10/2002 |
| 6444026 | Process for the production of cement clinker in the rotary kiln intake chamber In cement clinker production installations, especially with short rotary tubular kiln, in order to find a way in which the thermally highly stressed rotary kiln intake chamber can be protected from overstress and therewith the entire production installati... | 09/03/2002 |
| 6415998 | Circuit grinding apparatus with high pressure roller mill and sifter In order to further develop a circuit grinding apparatus with roller mill or roller press for comminution of the material bed of granular material and with at least one integrated sifter, in which mill and sifters are arranged within two fixed side face w... | 07/09/2002 |
| 6382963 | Grate cooler A grate cooler of simple construction whose cooling grate is substantly protected against wear and which can be operated in simple fashion and with a high cooling efficiency. A plurality of rotatably supported tubular oscillating shafts, spaced apart from... | 05/07/2002 |
| 6347707 | Sifting device for sifting granular material In order to create a sifting device with integrated static sifter member and dynamic sifter member having at least one rotatably disposed rod basket such that the two sifter members are optimally coordinated so as to operate efficiently, particularly with... | 02/19/2002 |
| 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 (secondary fuels) can be beneficially disposed of by burning for th... | 09/11/2001 |
| 6203202 | Method for monitoring and controlling the operation of rotary drums borne on sliding blocks and a sliding block bearing therefor In order to monitor the function of the sliding block bearing elements in view of the hydrostatically and/or hydrodynamically generated compressed oil film or, respectively, compressed oil cushion, given rotating drums seated on sliding blocks such as, fo... | 03/20/2001 |
| 6186019 | Drive pinion for rim gear/pinion drive The pinion (10) on the pin shaft (11) and/or the pinion shaft bearings to either side of the pinion and/or the pinion shaft pillow blocks (12, 13) are supported by elastically deformable components (15, 16, 22, 23) so as to automatically adapt radially in... | 02/13/2001 |
| 6032887 | Circuit grinding apparatus with high-pressure roll press and sifter A compact circuit grinding apparatus wherein two press rolls are housed in one housing, comprising of two stationary lateral end walls, between which is arranged a material conveyor ring, which is rotatably seated and can be set into rotation, for an inte... | 03/07/2000 |
| 6032882 | Method for circulation grinding of brittle grinding stock and grinding apparatus therefor In order to enable grinding, with the lowest possible specific energy requirement, of brittle grinding material, in particular moist ores and/or other moist minerals, with the use of an interparticle crushing high-pressure roll press in which the roll sur... | 03/07/2000 |
| 6000937 | Device for distributing and/or feeding a hot flour-like material A cement plant for the production of cement clinker from cement raw meal has a flat plate shaped control element for distributing and/or transporting-feeding a stream of hot flour-like material which is subjected to severe thermochemical and abrasive ware... | 12/14/1999 |
| 5951279 | Method and apparatus for reducing pollutant circulations in the manufacture of cement clinker from raw meal A method and apparatus is provided for use in cement clinker production apparatuses, particularly those with a short rotary tubular kiln, in which pollutant containing raw meals are utilized, wherein a bypass vent or gas sub-vent, exhausts a sub-stream of... | 09/14/1999 |
