| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 266138000 | WITH MEANS TO PREHEAT GAS | 7 |
| 20100148410 | LINEAR HEARTH FURNACE SYSTEM AND METHODS REGARDING SAME - Systems and methods for use in processing raw material (e.g., iron bearing material) include a linear furnace apparatus extending along a longitudinal axis between a charging end and a discharging end (e.g., the linear furnace apparatus includes at least a furnace zone positioned along the longitudinal axis). Raw material is provided into one or more separate or separable containers (e.g., trays) at the charging end of the linear furnace apparatus. The separate or separable containers are moved through at least the furnace zone and to the discharging end where the processed material is discharged resulting in one or more empty containers. One or more of the empty containers are returned to the charging end of the linear furnace apparatus to receive further raw material. | 06-17-2010 |
| 20100164149 | Center Backfire Inner Heat Regenerative Energy Saving High Efficiency Furnace and Tank Integration Reduction Furnace System - A center backfire inner heat regenerative energy saving high efficiency furnace and tank integration reduction furnace system comprises a furnace section and a heating section. The furnace section includes a reduction tank, a material inlet door, a magnesium crystal collecting machine, and a residue exhaust pipe. The reduction tank includes a tank body, a centre combustion room, and plural fume exhaust pipes. The material inlet door is connected to a material charging room between the center combustion room and the tank body, and the magnesium crystal collecting machine is provided with a crystal cover communicating with the material charging room, and a water recycling condensation equipment outside the crystal cover. The residue exhaust pipe is connected to the material charging room and provided with a residue exhaust door and a water dispersing heat separating cover. The heating section includes a burner connected to the center combustion room. | 07-01-2010 |
| 20120119424 | SYSTEM AND METHOD FOR PRODUCING METALLIC IRON - A hearth furnace for producing metallic iron material has a furnace housing having a drying/preheat zone, a conversion zone, a fusion zone, and optionally a cooling zone, the conversion zone is between the drying/preheat zone and the fusion zone. A moving hearth is positioned within the furnace housing. A hood or separation barrier within at least a portion of the conversion zone, fusion zone or both separates the fusion zone into an upper region and a lower region with the lower region adjacent the hearth and the upper region adjacent the lower region and spaced from the hearth. An injector introduces a gaseous reductant into the lower region adjacent the hearth. A combustion region may be formed above the hood or separation barrier. | 05-17-2012 |
| 266139000 | Having heat storage means, e.g., checkers, stroves | 1 |
| 20080197546 | Metal heat treatment system hot-gas quenching apparatus and hot-gas heat treatment system - A metal heat treatment method includes quenching a workpiece by blowing an inert gas onto the workpiece, adjusting the temperature of the inert gas to approximately an isothermal holding temperature of the workpiece for transformation of the workpiece, holding the isothermal holding temperature within a margin of error of approximately plus or minus five degrees Celsius for a given period, and performing a metal heat treatment with the isothermal holding temperature kept statically or dynamically by varying the temperature of the hot-gas. | 08-21-2008 |
| 266140000 | By heat generating means | 2 |
| 20110266726 | GAS TURBINE EXHAUST AS HOT BLAST FOR A BLAST FURNACE - In certain exemplary embodiments, a system includes a gas turbine system having a turbine, combustor, and a compressor. The system also includes an output flow path from the gas turbine system. The system further includes a blast furnace coupled to the output flow path, wherein output flow path is configured to deliver heated air or exhaust gas from the gas turbine system directly to the blast furnace as a blast heat source. | 11-03-2011 |
| 20140151943 | VALUABLE METAL RECOVERY APPARATUS - The present invention provides a valuable metal recovery apparatus capable of discharging clean exhaust gas. The apparatus | 06-05-2014 |
| 266141000 | By remote heat exchanger | 1 |
| 20100258985 | Installation for production of secondary steel based on scrap - An installation for production of the secondary steel based on scrap in which the scrap ( | 10-14-2010 |
