Patent application number | Description | Published |
20100024599 | METHOD AND DEVICE FOR PRODUCING MOLTEN MATERIAL - A method for producing molten material, wherein oxygen, reducing agents and iron that has been reduced in a reduction reactor are introduced into a melter gasifier. The reducing agent is gasified with the oxygen and the heat thereby produced melts the reduced iron. Cupola gas from the melter gasifier is used at least as a portion of the reduction gas, and reacted top gas is withdrawn from the reduction reactor. The aim of the invention is to increase energy efficiency and raw material efficiency as well as productivity while at the same time obtaining metallurgically improved properties of the product. For this purpose, at least a portion of the top gas is branched off from the line for the withdrawal of the top gas from the reduction reactor and is returned via at least one return line leading to the melter gasifier and is introduced into the melter gasifier. | 02-04-2010 |
20100043599 | METHOD AND DEVICE FOR PRODUCING MOLTEN MATERIAL - In a method for the production of molten metal, oxygen, a reducing agent and iron reduced in a reduction reactor are introduced into a melt gasifier, the reducing agent is gasified with oxygen and reduced iron is melted by means of the heat which occurs, the cupola gas being used as at least a fraction of the reduction gas. Reacted top gas is drawn off from the reduction reactor. | 02-25-2010 |
20100133723 | METHOD FOR PRODUCING MOLDINGS - A method for producing moldings, in particular briquettes, from fine-grained to medium-grained mixed material using organic binders. In a first stage, the mixed material is heated to a temperature necessary for the molding operation. In a second, atmospherically separate stage, mixing of the mixed material with binder is performed, as well as downstream steps of the process. The method allows hazardous emissions to be avoided. | 06-03-2010 |
20100313711 | METHOD FOR THE MELTING OF PIG IRON WITH THE RECIRCULATION OF BLAST FURNACE GAS AND WITH THE ADDITION OF HYDROCARBONS - A method for the melting of pig iron in a blast furnace ( | 12-16-2010 |
20110030507 | PROCESS AND APPARATUS FOR PRODUCING LIQUID PIG IRON OR LIQUID PRIMARY STEEL PRODUCTS - A process and an apparatus for producing liquid pig iron or liquid primary steel products from charge materials formed by iron ores and additions. The charge materials are subjected to a further reduction in a reducing zone ( | 02-10-2011 |
20110038772 | METHOD AND DEVICE FOR COARSE SEPARATION OF SOLID PARTICLES FROM SOLID-LADEN GASES - The invention relates to a method and a device for the coarse separation of solid particles from solid-laden gases. The invention further relates to a method for treating particulate feed materials by means of treatment gases in a reactor, particularly in a fluidization zone at an increased temperature. Due to a blind hole-like line extension, it is possible to separate solid particles from a solid-laden gas. | 02-17-2011 |
20110120266 | METHOD AND SYSTEM FOR ENERGY-OPTIMIZED AND CO2 EMISSION-OPTIMIZED IRON PRODUCTION - A process for energy-and emission-optimized iron production and an installation for carrying out the process. A first partial amount of a generator gas produced in a melter gasifier is used as a first reducing gas in a first reduction zone. A second partial amount is fed to at least one further reduction zone as a second reducing gas. In addition, after CO | 05-26-2011 |
20110146485 | PROCESS GAS PURIFICATION DEVICE FOR A MELT REDUCTION SYSTEM FOR EXTRACTING PIG IRON - Process gas purification device ( | 06-23-2011 |
20110290075 | Nozzle for Injecting Gas Containing Oxygen Into a Pig Iron Device Having an Injector Insertion Pipe - An injector insert pipe is arranged in the gas channel of a nozzle for injecting oxygen-containing gas into a pig iron production unit, wherein an interspace which surrounds the pipe is present over the entire pipe length between the wall of the gas channel and the pipe outer wall . The pipe extends at least as far as the nozzle end face which contains the mouth of the gas channel. The pipe space is connected to an oxygen-containing gas feed line, and the interspace is connected to a protective gas supply line. In a process, oxygen-containing gas is fed into the pipe space, which after it has flowed through the pipe, enters the production unit at an entry velocity, and the interspace is simultaneously flowed through by a gas which exits into the production unit at an exit velocity, wherein the entry velocity is greater than the exit velocity. | 12-01-2011 |
20120313300 | PROCESS AND APPARATUS FOR PRODUCING METALS AND/OR PRIMARY METAL PRODUCTS - The invention relates to an apparatus for producing metals and/or primary metal products, in particular pig iron and/or primary pig iron products, in which a metal-containing charge material, in particular in fine particle form, is introduced, using pneumatic conveying, by means of a carrier gas stream, in the form of a stream of medium formed from the charge material and the carrier gas stream, into a melting unit, in particular a melter gasifier, for further processing. According to the invention, the charge material is introduced after the carrier gas stream has been separated off and separately at at least two introduction points, so that at least two partial quantities of the charge material can be introduced independently of one another and continuously or in stacked form. | 12-13-2012 |
20120326363 | METHOD AND DEVICE FOR PROVIDING REDUCTION GAS FROM GENERATOR GAS - A method for providing reduction gas for iron ore reduction by cooling and dry dedusting generator gas produced in a melter gasifier for pig iron production, as well as a device for carrying out such method, are provided. The generator gas may be cooled both by water injection and by heat exchange after it has been discharged from the melter gasifier and before a dry dedusting thereof. | 12-27-2012 |
20130154166 | Method for Increasing the Penetration Depth of an Oxygen Stream - A method and device are disclosed for automatically evaluating a delivery system in respect of the energy efficiency and emissions efficiency thereof. The method may include: determining a service level for the delivery system according to an energy intensity and an evaluation relevance of the particular delivery system, detecting energy data and emissions data of the delivery system corresponding to the determined service level of the delivery system, and calculating at least one indicator based on the detected energy data and emissions data and/or based on data for the energy management and environmental management of the delivery system for evaluating the delivery system with respect to the energy efficiency and emissions efficiency thereof. | 06-20-2013 |
20130284019 | Method And Apparatus For Treating Process Water - A method and apparatus are disclosed for treating process water which is loaded with gaseous compounds and/or possibly with solids and comes from a wet-cleaning installation for cleaning process gas, e.g., from a melt-reduction subassembly or from a direct-reduction subassembly. Process water is introduced in a tank in a first process stage and degassed on the basis of reduced solubility of the dissolved compounds. The tank has, on its upper side, a gas-collecting chamber, in which the separated-off gases are collected and from which these are discharged. Likewise, the treated process water is discharged from the tank via a drainage means. | 10-31-2013 |
20140110891 | METHOD AND DEVICE FOR CHARGING COAL-CONTAINING MATERIAL AND IRON CARRIER MATERIAL - A melter gasifier of a smelting reduction installation is charged by bringing together coal-containing material in lump form and iron carrier material (which may be hot) before and/or while they enter the melter gasifier. The ratio of the combined amounts of iron carrier material and coal-containing material in lump form is variable. The combined amounts of iron carrier material and coal-containing material in lump form are distributed over the cross section of the melter gasifier by a dynamic distributing device, and the ratio of the combined amounts of the iron carrier material and coal-containing material in lump form is set depending on the position of the dynamic distributing device. | 04-24-2014 |
20140138883 | MELTING REDUCTION ASSEMBLY AND METHOD FOR OPERATING A MELTING REDUCTION ASSEMBLY - A melting reduction assembly ( | 05-22-2014 |
20150027038 | PROCESS AND APPARATUS FOR BRIQUETTE PRODUCTION - Process for producing a briquette containing carbon carriers ( | 01-29-2015 |