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WO/2008/074048A1 |
To reduce the content of offgases, in particular the sulphur dioxide content, in the production of cement clinker, raw powder comprising calcium oxide is taken from a calciner (5), cooled and admixed with water to form calcium hydroxide ...
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WO/2008/069708A1 |
A bearing component (1) is disclosed. It comprises a rotary and circular ring (3) that has means (5) allowing fixing to a mechanical element (7), wherein the means (5) is intended to receive a fixing means (9) for fixing in a direction e...
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WO/2008/059378A2 |
The invention provides a process for the production of cement which comprises the calcination of calcium carbonate-containing raw meal in a calciner heated by combustion of a carbon-containing fuel with a gas comprising oxygen and from 0...
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WO/2008/048936A2 |
In a kiln whose interior is heated by combustion with oxidant having a higher oxygen content than air, streams of staging oxidant are fed into the space between the combustion zone and the inner surface of the kiln, and the stoichiometri...
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WO/2008/031800A1 |
This object is achieved using an existing water injecting technology used in precalciners for NOx control. The inventive method comprises the step of injecting water into the precalciner to control the temperature. Thanks to considerably...
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WO/2008/031229A1 |
A process and apparatus for purifying low-purity silicon material and obtaining a higher-purity silicon material is provided. The process includes providing a melting apparatus equipped with an oxy-fuel burner, and melting the low-purity...
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WO/2008/017333A1 |
The invention relates to a cooler for cooling bulk material, in particular for cooling cement clinker, having a bearing surface for supporting the bulk material, conveying elements for transporting the bulk material, which can move to an...
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WO/2008/012673A2 |
Method for the preparation of metal titanates, in particular potassium hexatitanate and its use as a component in materials having a high friction coefficient, in plastic materials, paints, heat resistent materials, and lubricants.
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WO/2007/141497A1 |
A kiln for production of lightweight aggregates is disclosed. The kiln comprises a generally cylindrical heating chamber (10). The heating chamber is disposed for rotation about its axis X. It has an inlet end into which material to be t...
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WO/2007/141307A2 |
The invention relates to an apparatus and method for cooling bulk materials, the physical and chemical properties of which depend on the cooling medium, comprising: a. a base through which a cooling medium can flow and on which the bulk ...
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WO/2007/134824A1 |
The system according to the invention for producing cement clinkers from raw cement mix is composed substantially of a pre-warmer for pre-warming the raw cement mix, a calcination device for pre-calcining the pre-warmed raw cement mix, a...
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WO/2007/134713A2 |
The invention relates to a plant and a process for producing cement clinker comprising a rotary tube furnace for firing preheated and, if appropriate, precalcined material to give cement clinker and a cooler for cooling the fired cement ...
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WO/2007/128619A1 |
Described is a method as well as a plant for manufacturing cement clinker, by which method cement raw materials are preheated in a preheater (1), calcined in suspension with hot gases in a calciner (2, 20), separated from the gases in a ...
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WO/2007/126335A1 |
The invention relates to a method for processing condensed fuels, including solid fuel wastes, by pyrolysis and by gasifying the organic constituent thereof. The inventive method can be used for efficiently processing fuels, including fi...
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WO/2007/116085A1 |
According to the invention, raw meal is fed into the calciner (10) of an installation for producing cement clinker, the raw meal being delivered pneumatically to the calciner (10) by means of a gas stream. The gas stream is introduced in...
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WO/2007/104787A1 |
The container-calcinator (12) is used to precalcinate raw meal (31) in the production of cement clinkers. The calcinator (12) is a container in which it joins below the calcinator waste gas line of the rotating kiln (16) and leads away o...
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WO/2007/104788A1 |
The mixing chamber (30) is arranged in a calcinating step (12) of a system for producing cement clinker. The calcinating step (12) comprises an ascending branch of a pipe conduit (24) and a descending branch of a pipe conduit (26), on wh...
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WO/2007/104785A2 |
The invention relates to the production of cement clinker in a dry process wherein the raw material is ground in a raw mill (20) to form cement raw meal, the raw meal is preheated in a raw meal preheater (16) and is precalcinated in a ca...
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WO/2007/095831A1 |
A rotary kiln includes a drum (1), a heat insulating layer (2) and a lining, in which, the lining comprises refractory bricks (3) fixed onto the drum by anchors (4), hook holes (31) and hook concaves (32) are respectively arranged in two...
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WO/2007/071332A1 |
The invention relates to a method for operating a rotary kiln for burning mineral material, wherein the material is moved from the inlet to the outlet by the rotary motion of the rotary kiln and a transmission of heat to the material to ...
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WO/2007/062823A2 |
The aim of the invention is to create a cement clinker production line comprising a calcination stage arranged upstream of the revolving tubular furnace (16) and provided with an integrated calcination combustion chamber (10), forming a ...
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WO/2007/057512A2 |
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 flue gas flow in the interior of the rotary...
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WO/2007/051585A2 |
The invention relates to a system and a method for producing cement clinker from raw meal. According to the invention, the raw meal is preheated in a preheating zone, is precalcined in a calcination zone, is burned in a sinter burning zo...
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WO/2007/053265A2 |
Apparatus and methods are provided for reducing the variability of stress levels in glass sheets (11) cut from a moving glass ribbon (13). The reductions in variability are achieved by constraining the edge regions (53,55) of the ribbon ...
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WO/2007/039938A1 |
A method of roasting in which both the C content and S content of roasted ore can be lowered to 0.5% or below and in which an Mo yield of 90% or higher can be ensured. For recovery of the valuable metals of V, Mo and Ni by reducing of a ...
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WO/2007/033749A1 |
The invention relates to a device and a method for producing clinker from raw cement material. The raw cement material is preheated in a preheater, is precalcined in a calcining apparatus, is completely burned in a sintering furnace, and...
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WO/2007/025406A1 |
Dual estimation and a parameterized model of the circulation of volatiles is used to identify the changing volatility parameters (E1, E2, A) in a cement kiln and to estimate the concentration of the volatiles; the estimates of the volati...
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WO/2007/017747A2 |
Disclosed is a method for preheating raw meal used for producing cement clinker. According to said method, the raw meal is conveyed to the input end of a clinker kiln (1) counter to the flow of hot gases in at least one heat exchanger le...
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WO/2007/017748A2 |
The invention relates to a method for use of alternative fuels in clinker and cement production with application of the alternative fuels in reactors (4) for the pre-heating and/or pre-calcination of raw meal in a burner device (17), sep...
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WO/2007/015029A1 |
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 flow (a) of fuel and primary air and a fl...
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WO/2007/007071A1 |
A system (10) for pyrolysing material comprises a stationary inlet stage (20), a rotary kiln (60) and a stationary outlet stage (70), with a rotary joint mechanism (30, 80) provided between the inlet stage (20) and the rotary kiln and/or...
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WO/2007/003510A1 |
The invention relates to a rotary kiln comprising a housing that encloses a kiln chamber in which bulk materials or small parts located in a rotating tube are heated by means of heating elements, at least two tubes penetrating the kiln c...
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WO2005118480A9 |
A method of continuously producing reduced compounds, which comprises continuously feeding our oxidised compound into a reaction chamber and contracting the oxidised compound with a reductant gas. The oxidised compound may be titanium di...
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WO/2007/001692A1 |
A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln (10). The method comprises injection of air with high velocity/high kinetic energy into the kiln (10) to reduce o...
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WO/2006/119528A1 |
The invention relates to a device for feeding lumpy alternative fuels and/or waste products into a revolving tubular furnace at a location situated between the feeding end and the dropping end of the revolving tubular furnace. A closeabl...
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WO/2006/117336A1 |
The invention relates to a method for the smelting of a ferrous load. More specifically, the invention relates to an organic load which may or may not be inherent to the ferrous load and which is subjected to combustion using a burner ox...
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WO/2006/115242A1 |
Disclosed is a surface-treated fine particle which is surface-treated by a simple process while being precisely controlled in the degree of the surface treatment. Also disclosed are a surface-treating apparatus and a method for surface-t...
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WO/2006/104775A2 |
Method and apparatus for pneumatically drying thickened lime mud and feeding the dried thickened lime mud to a lime reburning kiln. The thickened mud is pneumatically dried via the action of flue gas emanating from the lime reburning kil...
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WO/2006/089332A1 |
The invention concerns a method for melting down small-sized scrap aluminum. Following a thermal pre-treatment, the scrap aluminum to be melted down is subjected to a melting process in a hot gas stream. The invention aims at ensuring ad...
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WO/2006/089978A1 |
The invention relates to a rotary furnace which is used for the continuous production of minium from yellow lead and which is formed by a tubular body that is inclined in relation to the horizontal plane, comprising an inlet at the highe...
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WO/2006/079498A1 |
The invention relates to a multi-stage heat exchanger for exchanging heat between a gas flow and a fine-grained or floury product. Said heat exchanger comprises a plurality of separator stages (I, II, III, IV) that are disposed one after...
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WO/2006/077098A1 |
The invention relates to a device (12) which is used to remove solid melt residues from a melting furnace (14) which is used, in particular, for producing metal oxide. Said device (12) comprises a cleaning head (36) which can be driven i...
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WO/2006/007678A1 |
Process and equipment for the treatment of loads or residues of non-ferrous metals and their alloys including the steps of loading of scraps or dross to be processed; heating the load (29) and melting the metal; revolving the heated load...
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WO/2006/000283A1 |
The invention relates to a low-wear and low-maintenance sealing arrangement for sealing a junction between movable (2) and fixed (3) parts comprising a multi-part slide ring (4) which is arranged around the movable part and placed on the...
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WO/2005/123885A1 |
Method and apparatus for drying wet bio-solids by utilizing waste heat from one of a clinker cooler or kiln exhaust gases in a cement making process.
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WO/2005/121675A1 |
[PROBLEMS] A rotary heat exchanger increasing the degree of contact of the entire raw material with heat gas, enabling to achieve a high exchange rate of heat with the gas even the raw material has a high percentage of water content. [ME...
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WO/2005/114080A1 |
The aim of the invention is to design a bulk-material cooler, particularly one for cooling cement clinker, which operates according to the walking floor principle, so that its cooling grate can be composed of a multitude of ventilated co...
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WO/2005/108892A1 |
Described is a method as well as an apparatus for incineration of combustible waste during the manufacture of cement clinker by which method the waste is introduced via a waste inlet (11) and supported on a supporting surface (21) incorp...
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WO/2005/108891A1 |
Disclosed are an installation and a method for producing cement clinker, in which raw meal is preheated in a heat exchanger and is burned in a furnace so as to obtain clinker. The exhaust gases of the furnace successively penetrate the h...
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WO/2005/100510A1 |
A method of continuously carbonization-treating, while saving energy, biomass resources and other inflammable wastes by utilizing a rotary kiln, characterized by comprising a step for supplying treated matter from the upstream side of th...
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