Patent application number | Description | Published |
20090236451 | Method For Generating Finest Particles And Jet Mill Therefor As Well As Classifier And Operating Method Thereof - A method and jet mill apparatus for generating fine particles by means of a jet mill with an integrated dynamic air classifier, wherein the rotational speed of a classifying rotor of the air classifier and the inner amplification ratio V (=Di/DF) are so selected, set or controlled that the circumferential velocity of the operating medium at an immersion pipe or outlet connection assigned to the classifying wheel reaches up to 0.8 times of the velocity of sound of the operating medium. A dynamic air classifier with a classifying wheel is additionally created, wherein a source (Tank | 09-24-2009 |
20090261187 | METHOD FOR GENERATING FINEST PARTICLES AND JET MILL THEREFOR AS WELL AS CLASSIFIER AND OPERATING METHOD THEREOF - A method and jet mill apparatus for generating fine particles by means of a jet mill with an integrated dynamic air classifier including a classifying wheel classifying wheel shaft and classifier housing, wherein between the classifying wheel and classifier housing a classifier gap is formed and between the classifying wheel shaft and the classifier housing a shaft passage is formed, wherein gap flushing of classifier gap or shaft passage takes place with compressed gases of low energy content, and wherein comminution jet inlets are present which are charged with energy-rich superheated steam. Through the invention a dynamic air classifier explained above and a corresponding operating method therefor are additionally created. | 10-22-2009 |
20090294557 | METHOD FOR PRODUCING VERY FINE PARTICLES BY MEANS OF A JET MILL - The invention relates to a method for producing very fine particles by means of a jet mill using compressed gases as the grinding gas, characterized in that the grinding gas is under pressure of ≦4.5 bar(abs). | 12-03-2009 |
20100065668 | METHOD FOR THE PRODUCTION OF VERY FINE PARTICLES BY MEANS OF A JET MILL - The invention relates to a method for producing very fine particles by means of a jet mill ( | 03-18-2010 |
20100127105 | Pulverizer And Operating Method Therefor - A pulverizer includes a cutting rotor with a multiplicity of cutting blades, a cutting stator surrounding the cutting rotor with a plurality of stator blades, a milling stock inlet for the milling stock feed and a discharge screen in direction of rotation of the cutting rotor located after the milling stock inlet, wherein all stator blades in direction of rotation of the cutting rotor are arranged between the milling stock inlet and the discharge screen. Furthermore, an operating method for a pulverizer as described above is also contemplated. | 05-27-2010 |
20120211576 | Pulverizer And Operating Method Therefor - A pulverizer includes a cutting rotor with a multiplicity of cutting blades, a cutting stator surrounding the cutting rotor with a plurality of stator blades, a milling stock inlet for the milling stock feed and a discharge screen in direction of rotation of the cutting rotor located after the milling stock inlet, wherein all stator blades in direction of rotation of the cutting rotor are arranged between the milling stock inlet and the discharge screen. Furthermore, an operating method for a pulverizer as described above is also contemplated. | 08-23-2012 |
20120298782 | JET MILL AND METHOD FOR OPERATION OF A JET MILL - A method for the operation of a jet mill with an integrated dynamic air classifier, wherein particles are fed as grinding stock into a grinding chamber of the jet mill and are ground there into ultra-fine particles by grinding, in that superheated steam or technical gases is/are used as working stock, wherein at least one surface-active additive is fed to the grinding stock for stabilization of the generated ultra-fine particles. A jet mill for performing this method, having an integrated dynamic air classifier, and a grinding chamber into which superheated steam or technical gases are provided as working stock via working stock feed devices as grinding stock and in which the grinding stock is ground into ultra-fine particles by grinding, and wherein feeding devices for at least one surface-active additive for stabilization of the generated ultra-fine particles are provided. | 11-29-2012 |
20140021275 | Operating Method For A Jet Mill Plant And Jet Mill Plant - An operating method for a jet mill plant, wherein superheated steam at low pressure is used as an operating medium for a jet mill and the steam, after the jet mill and separation of grinding stock, is circulated back again into the jet mill via a compressor for excess pressure and temperature increase in the circuit. Furthermore, a jet mill plant includes a jet mill designed to operate with superheated steam at low pressure, wherein a jet mill steam discharge line, a compressor and a jet mill steam supply line form together with the jet mill a circuit for steam, so that steam is conveyed from the jet mill back again into the jet mill via the compressor for excess pressure and temperature increase in the circuit. | 01-23-2014 |
20140197252 | Method for Jet Milling and Jet Mill Therefor - A method for jet milling of damp or wet grist in a jet mill, such that at least one of the operating parameters is appropriately selected so that a combined drying and milling process occurs in which, to obtain an end product with predetermined degree of fineness and moisture content. The specific operating mechanism required for milling is selected so that it is greater than or equal to the specific drying requirement, and the end product is released from the jet mill with the predetermined fineness and moisture content. In addition, the invention relates to a jet mill to perform this method, such that adjusting, controlling or regulating devices are foreseen for adjusting, controlling or regulating at least one of the operating parameters. | 07-17-2014 |
Patent application number | Description | Published |
20090020728 | METHOD FOR CONTROLLING THE THICKENING OF AQUEOUS SYSTEMS - A method for controlling the thickening of aqueous systems comprising silicates, which comprises adding to the aqueous system at least one copolymer of a mean molecular weight Mw of greater than 60 000 g/mol and the copolymer being made up essentially randomly from monoethylenically unsaturated monocarboxylic acids, monoethylenically unsaturated dicarboxylic acids and optionally other ethylenically unsaturated comonomers, the quantitative figures being respectively based on the total amount of all monomers used. | 01-22-2009 |
20090025896 | Control of the Thikening of Silicate-Containing Aqueous Systems - A method for controlling the thickening of aqueous systems comprising silicates, which comprises adding to the aqueous system at least one copolymer of a mean molecular weight Mw of at least 3000 g/mol to at most 60 000 g/mol and the copolymer being made up essentially randomly from monoethylenically unsaturated monocarboxylic acids, monoethylenically unsaturated dicarboxylic acids and other ethylenically unsaturated comonomers, the polymerization for producing the copolymer being performed in the presence of from 0.01 to 100 mol % of at least one base, based on the total amount of all COOH groups of the monocarboxylic and dicarboxylic acids, the quantitative figures in % by weight being respectively based on the total amount of all monomers used. | 01-29-2009 |
20130037491 | POLYMER MIXTURES AS DEPOSIT INHIBITORS IN WATER-BEARING SYSTEMS - A polymer mixture in solid or aqueous form includes a content of from 5 to 95% by weight of a first polymer and a content of from 5 to 95% by weight of a second polymer. The first polymer is a water-soluble or water-dispersible polymer having a weight-average molecular weight of 1000 to 20 000 g/mol. The second polymer is a water-soluble or water-dispersible polymer having a weight-average molecular weight of 1000 to 50 000 g/mol. The polymer mixture can inhibit precipitation and sedimentation of calcium salts and magnesium salts in water-bearing systems. | 02-14-2013 |
20130178574 | COPOLYMERS OF ISOPRENOL, MONOETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACIDS AND SULFONIC ACIDS, METHODS FOR PRODUCTION THEREOF AND USE THEREOF AS DEPOSIT INHIBITORS IN WATER-BEARING SYSTEMS - The invention relates to a copolymer of | 07-11-2013 |
20130180926 | PREPARING MALEIC ACID-ISOPRENOL COPOLYMERS - The invention relates to a process for preparing maleic acid-isoprenol copolymers from
| 07-18-2013 |