Patent application number | Description | Published |
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 |
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 |
20110179910 | PROCESS FOR PRODUCING AGGLOMERATES OF FINELY PARTICULATE IRON CARRIERS - A process for producing agglomerates from fine-grained iron carriers and at least one binder as a charge material for a metallurgical process is shown. In at least one further agglomeration step, the agglomerates are coated with a layer, comprising iron carriers and at least one binder, and heated in such a way that the binder is cured in the region of the surface of the agglomerates. In a process for producing liquid pig iron or liquid primary steel products from charge materials and possibly additions and agglomerates, the agglomerates are preheated in a reducing zone, which has a preheating stage, in such a way that the agglomerates completely harden in the preheating stage. | 07-28-2011 |
20120000316 | METHOD FOR PRODUCING PRESSED ARTICLES CONTAINING COAL PARTICLES - Coal particles to be processed into compressed articles are impregnated with a substance before being mixed with a binder system containing water and finally being processed into compressed articles. | 01-05-2012 |
20130032005 | BENTONITE-BOUND COMPACTS OF UNDERSIZED OXIDIC IRON CARRIERS - A method for producing compacts containing iron oxide from undersized oxidic iron carriers may include producing a mixture which comprises undersized oxidic iron carriers, bentonite as a binder and water, pressing the mixture and hardening the green compacts obtained by the pressing, as well as to the compacts produced by the method and to the use of the compacts as lump iron carriers. The mixture may be subjected to a kneading process lasting at least 3 minutes and up to 30 minutes, prior to the pressing. The compacts may thus be produced without a maturing process. | 02-07-2013 |
20130160607 | METHOD FOR PRODUCING PRESSED ARTICLES CONTAINING COAL PARTICLES - A method for producing pressed articles containing coal particles, pressed articles obtained from such method, and the use of such pressed articles in methods for producing pig iron in a fixed bed or for producing carbon carriers for methods for producing pig iron in a fixed bed, are provided. To this end, a partial amount of the coal particles to be processed into pressed articles is impregnated with a substance before the material to be processed into pressed articles is mixed with a binder system containing water and finally being processed into pressed articles. | 06-27-2013 |
20130174695 | METHOD FOR PRODUCING PRESSED ARTICLES CONTAINING COAL PARTICLES - In a method for producing pressed articles containing coal particles, before being mixed with a binder system containing water, at least a subset of the coal particles is subjected to at least two impregnation steps in which it is impregnated with at least one substance. The pressed articles may be used, for example, in methods of pig iron production in a packed bed or in methods for producing carbon carriers for methods of pig iron production in a packed bed. | 07-11-2013 |
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 |
20150027038 | PROCESS AND APPARATUS FOR BRIQUETTE PRODUCTION - Process for producing a briquette containing carbon carriers ( | 01-29-2015 |