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| Number | Title | Issue Date |
| 6955140 | Method and apparatus for increasing the capacity of a waste heat boiler in a metallurgic smelting furnace The invention relates to a method for increasing the capacity of a waste-heat boiler (1) processing gases obtained from a metallurgic smelting furnace, such as a flash smelting furnace, and for reducing dust accretions, where liquid is added into the waste-he... | 10/18/2005 |
| 6547848 | Method for cooling the gas flow in a smelting furnace The present invention relates to a method for cooling the gas flow exiting through the uptake of a smelting furnace such as a flash-smelting furnace with finely dispersed liquid sprays, which prevents the solid matter particles contained within from coale... | 04/15/2003 |
| 6521171 | Processing method for high-temperature exhaust gas To effectively separate and recover solid dust and volatile or molten components while preventing solid dust and volatile or molten component dust from being adhered to inner walls of a temperature control tower. The high-temperature exhaust gas is blown from ... | 02/18/2003 |
| 6517770 | Temperature control device and temperature control method for high-temperature exhaust gas In a temperature control device comprising a temperature control tower for controlling a blown high-temperature exhaust gas to a proper temperature and discharging the temperature-controlled exhaust gas to the subsequent step side, the temperature control... | 02/11/2003 |
| 6460742 | Process for reducing fume emissions during molten metal transfer A process for reducing fume, dust and/or smoke emission in transferring molten metal, entailing: a) blanketing molten metal, preferably steel or iron with, at least, solid carbon dioxide; and b) allowing the carbon dioxide to sublime, thereby restricting free ... | 10/08/2002 |
| 6379420 | Method and plant for producing a reducing gas serving for the reduction of metal ore In a method for producing a hot CO- and H2 -containing reducing gas serving for the reduction of fine-grained metal ore, in particular iron ore, the reducing gas is formed in a gasification zone by a gasification of carbon carriers, in particul... | 04/30/2002 |
| 5382413 | Safety module for hydrogen generating reactors A reactor provided with a gas-safety device/module therefor comprises (i) a reaction vessel having an open upper end, (ii) demisting means engaging and at least partially closing off the open upper end of such reaction vessel, and situated to traverse the... | 01/17/1995 |
| 4643110 | Direct fuel-fired furnace arrangement for the recovery of gallium and germanium from coal fly ash A furnace arrangement utilizes a single vertically disposed shaft furnace incorporating the features of pellet drying and hardening, oxidizing heat-up, reducing roast and gas separation. The upper portion of the furnace dries and hardens "green" pellets w... | 02/17/1987 |
| 4565353 | Apparatus for suppressing fume from a metal pouring operation Method and apparatus for the suppression of fume from a body of molten metal is described. The method involves the blanketing of the molten metal bath with a mixture of pressurized inert gas and finely divided or atomized particles of water. The inert gas... | 01/21/1986 |
| 4544138 | Discharge of top gases from blast furnaces or the like During the charging of a blast furnace with a new raw material, gas with a high dust content enters and pressurizes the storage bin. This pressurized gas is fed to one end of a temporary storage chamber in the form of an elongated tube having a discharge ... | 10/01/1985 |
| 4486230 | Method for suppressing fume from a metal pouring operation Method and apparatus for the suppression of fume from a body of molten metal is described. The method involves the blanketing of the molten metal bath with a mixture of pressurized inert gas and finely divided or atomized particles of water. The inert gas... | 12/04/1984 |
| 4415142 | Apparatus for handling converter gas An apparatus for the handling of converter gases, especially the storage thereof, comprises a hood which fits over the mouth of a steel making converter and is connected by a duct and blower to a storage vessel. According to the invention, between the blo... | 11/15/1983 |
| 4387883 | Changeover device for an installation for recovery of the gases and fumes proceeding from a converter A changeover device for an installation for recovery of the gases proceeding from a tilting converter placed in an enclosure connected to a fixed suction duct called the main suction duct. The main suction duct enables recovery of the gases which escape f... | 06/14/1983 |
| 4368070 | Method for scrubbing the flues and for recovering _the salts in a process for the production of secondary aluminum The invention relates to a process which makes possible the scrubbing of the flues and the recovery of the salts as contained in the oven slags for the remelting of aluminum scraps with a saline flux, by washing the slags with water and using the brine th... | 01/11/1983 |
| 4330511 | Treatment of blast furnace off-gas Off-gas produced by a blast furnace is treated by scrubbing and cooling the gas with water and then settling solids from the liquid effluent. The liquid effluent is cooled following settling, and a major portion of the cooled effluent is recirculated for ... | 05/18/1982 |
| 4317806 | Method and apparatus for dedusting and absorption of contaminating gases being the exhaust gases of waste-incinerating devices and hot-air cupola furnaces The invention relates to a method for dedusting and absorption of contaminating gases in exhaust gases of waste-incinerating devices and hot-air cupola furnaces. In the essence, mud-containing circulation water is atomized in the exhaust gas, whereby dry ... | 03/02/1982 |
| 4286775 | Apparatus for producing molten iron from iron oxide with coal and oxygen A method and apparatus for reducing particulate iron oxide and producing molten iron in which coal and oxygen are impinged onto a molten iron bath in a closed vessel to melt the iron and gasify the coal. The hot off gas from the vessel is removed and used... | 09/01/1981 |
| 4235425 | Impact bed gasifier-melter A method and apparatus for producing molten iron in which pulverized coal is gasified with oxygen in an iron melting chamber, iron pellets on an upstanding hearth in the melting chamber are exposed to the gasification heat and melted. Molten iron trickles... | 11/25/1980 |
| 4196892 | Apparatus for equalizing top gas pressure in a blast furnace An apparatus for equalizing top gas pressure exerted on the bottom surface of the large bell operating in the large bell hopper in a top closing device for a blast furnace, so as to enable opening of the large bell for the feeding of charge therethrough d... | 04/08/1980 |
| 4190237 | Apparatus for treating refinery waste gases A method for treating waste gases which are emitted from metallurgic refining methods wherein the gas is collected, cooled, cleaned and stored, and wherein the gas is removed from the refining method and treated under an excess pressure which pressure res... | 02/26/1980 |
| 4183506 | Protective device for turbine driven by exhaust gas from blast furnace A device for protecting a turbine driven by an exhaust gas of a blast furnace from a high temperature gas generated and discharged when the blow-out phenomenon takes place in the blast furnace is disclosed. In this protective device, occurrence of the blo... | 01/15/1980 |
| 4145193 | Apparatus for cleaning stack gas and using same for generation of electric power Stack gas is first passed through a coarse-particle separator and then a prescrubbing tower. Then this gas, which is under pressure, is passed through a pair of differential-pressure (annular-gap) washers. The output side of one of the washers is connecte... | 03/20/1979 |
| 4145187 | Treatment of material with hydrogen chloride This invention relates to apparatus for refining platinum group metal concentrates and the separation therefrom of silver and of the majority of base metals which are present with them. In more detail, the apparatus comprises means for reacting together g... | 03/20/1979 |
| 4133655 | Scrubber for blast furnace gas A scrubber for blast furnace gas has a primary purifying unit and a secondary purifying and pressure adjusting unit in series with the primary unit. The primary purifying unit includes venturi having a divergent-constant diameter-convergent core in which ... | 01/09/1979 |
| 4082253 | Blast furnace pressure equalizing apparatus An apparatus located at the top of a blast furnace for equalizing pressure exerted by top gas, generated during operation of the blast furnace, on the bottom surface of the large bell movably mounted in the top of the blast furnace, operable so as to remo... | 04/04/1978 |
| 4065110 | Method and apparatus for purifying blister furnace effluent A purifier for handling the high temperature effluent from a blister copper furnace, which includes solid particles in the range from 600 microns, or greater, down to a few microns, which contains oxidizable material, and which is at a high temperature, i... | 12/27/1977 |
| 4055331 | Method of cleaning stack gas and using same for generation of electric power Stack gas is first passed through a coarse-particle separator and then a prescrubbing tower. Then this gas, which is under pressure, is passed through a pair of differential-pressure (annular-gap) washers. The output side of one of the washers is connecte... | 10/25/1977 |
| 4040819 | Basic oxygen steel furnace and process An improved method for the production of steel which results in reducing the volume of off-flow gases which are created in the production of steel by the Basic Oxygen Steel Process. The method involves introduction of oxygen within the flame cone of the o... | 08/09/1977 |
| 4013455 | Method of and apparatus for treating a nonferrous metal A nonferrous metal is heated so as to produce a hot gas that is passed through an evaporative-cooler and, without saturation of the gas, is introduced into a dry-process filter where particulate material is removed. Thereafter this gas is fed to a scrubbi... | 03/22/1977 |
| 4013456 | Method for treating flue dust containing lead A method for pretreating of flue dust having a content of lead therein, by which method the flue dust is fused at a relatively low temperature without any substantial reduction taking place, whereupon the slag thus formed is cooled until solidification, r... | 03/22/1977 |
| 4013055 | Injection pump for air-compressing injection-type internal combustion engine An injection pump for an air-compressing injection internal combustion engine with at least one pump element that consists of a cylinder and of a piston; the piston is provided with an upwardly disposed control edge for the control of the beginning of the... | 03/22/1977 |
| 4009240 | Method and apparatus for purifying blister furnace effluent A purifier for handling the high temperature effluent from a blister copper furnace, which includes solid particles in the range from 600 microns, or greater, down to a few microns, which contains oxidizable material, and which is at a high temperature, i... | 02/22/1977 |
| 4007025 | Apparatus for cleaning stack gas and using same for generation of electric power Stack gas is first passed through a coarse-particle separator and then a prescrubbing tower. Then this gas, which is under pressure, is passed through a pair of Venturi washers. The output side of one of the washers is connected directly to a droplet sepa... | 02/08/1977 |
| 4000886 | Furnace exhaust duct An exhaust duct for use with a direct evacuation exhaust decontamination system of a blast furnace or steel converter. The exhaust duct includes a main support coolant inlet conduit and a plurality of coolant return conduits arranged in a generally circul... | 01/04/1977 |
| 3997299 | Apparatus for producing protective gas Apparatus for producing protective reducer gas, for use in plant having main and auxiliary burners for burning liquid or gaseous fuels, and designed either for heating purposes or for ore reduction processes. The apparatus includes a common cooling chambe... | 12/14/1976 |
| 3972518 | Cupola emission control system The invention discloses a method and apparatus for conditioning the gases discharged from a cupola. The apparatus consists of three flow connected vessels comprising first the cupola with improved gas conditioning means therein, secondly, a water spray to... | 08/03/1976 |
| 3972708 | Process for avoiding formation of smoke and flames in bottom blown converters This disclosure teaches a process for avoiding formation of smoke and flames in bottom blown converters upon charging of scrap and pig iron, deslagging and casting. Inert gas, preferably nitrogen, is blown into the converter vessel through bottom tuyeres ... | 08/03/1976 |
