OXYGEN LANCE GUIDING ASSEMBLY

METHOD FOR SIMULTANEOUSLY INJECTING A FUEL GAS AND AN OXYGEN-RICH GAS INTO A UNIT

Long-life service method for powder-bottom-injecting converter based on collaborative hot replacement of furnace bottom and bottom purging brick

Concentrate burner of copper smelting furnace and operation method of copper smelting furnace

METHOD FOR OPERATING MELTING/REFINING FURNACE AND MELTING-REFINING FURNACE

Device for measuring a shape of a wall portion of a coke oven

Injection lance shield for metal production furnace

Lance and method for determining reaction data of the course of a reaction

Apparatus for refining molten aluminum alloys

Raw material supply apparatus, raw material supply method and flash smelting furnace

Raw material supply method

Smelting process and apparatus

Process gas preparation apparatus for an industrial furnace system and an industrial furnace system for gas carburizing and hardening of metal workpieces utilizing same

METHOD FOR OPERATING A BLAST FURNACE

Solids injection lance

Blast furnace operation method

Solids injection lance

METHOD OF OPERATING A FURNACE

Oxygen lance with at least one coil

Starting a smelting process

Method for treating combustible material and installation

Starting a smelting process

Lances for top submerged injection

Top submerged injecting lances

Slag discharge door device for an electric furnace

OXYGEN BLOWING LANCE WITH PROTECTION ELEMENT

Direct smelting plant and process

Refining method and refining apparatus for chromium-contained molten steel

Supplying solid feed materials for a direct smelting process