Patent application number | Description | Published |
20110090934 | SEALING DEVICE - A sealing device is arranged around a rod electrode extending vertically through an aperture made in the ceiling of an arc furnace and being vertically movable inside the furnace to prevent the access of gases from the furnace through the aperture to the atmosphere, and on the other hand to prevent air from flowing from the atmosphere into the furnace. The sealing device comprises a gas distribution chamber provided with an inlet channel for feeding essentially passive gas, such as nitrogen or air, into the gas distribution chamber. The sealing device also includes a slit nozzle encasing the electrode, through which nozzle a gas jet is arranged to be discharged from the gas distribution chamber towards the electrode in a direction that is at an angle with respect to the horizontal plane and has a slightly upwards inclined orientation, and that is, with respect to the furnace interior, pointed outwardly, so that the sealing is carried out owing to the effect of the created stagnation pressure. | 04-21-2011 |
20120200012 | METHOD OF USING A SUSPENSION SMELTING FURNACE, A SUSPENSION SMELTING FURNACE, AND A CONCENTRATE BURNER - The invention relates to a method of using a suspension smelting furnace and to a suspension smelting furnace and to a concentrate burner ( | 08-09-2012 |
20120204679 | METHOD OF CONTROLLING THE THERMAL BALANCE OF THE REACTION SHAFT OF A SUSPENSION SMELTING FURNACE AND A CONCENTRATE BURNER - The invention relates to a method of controlling the thermal balance of the reaction shaft of a suspension smelting furnace and to a concentrate burner for feeding reaction gas and pulverous solid mater into the reaction shaft of the suspension smelting furnace. In the method, endothermic material ( | 08-16-2012 |
20130099431 | SUSPENSION SMELTING FURNACE AND A CONCENTRATE BURNER - The invention relates to a suspension smelting furnace comprising a reaction shaft ( | 04-25-2013 |
20130328250 | METHOD FOR CONTROLLING THERMAL BALANCE OF A SUSPENSION SMELTING FURNACE AND SUSPENSION SMELTING FURNACE - The invention relates to a method for controlling the thermal balance of a suspension smelting and to a suspension smelting furnace. The suspension smelting furnace, comprising a reaction shaft ( | 12-12-2013 |
20140239560 | METHOD FOR CONTROLLING THE SUSPENSION IN A SUSPENSION SMELTING FURNACE, A SUSPENSION SMELTING FURNACE, AND A CONCENTRATE BURNER - The invention relates to a method for controlling suspension ( | 08-28-2014 |
20150143951 | METHOD AND ARRANGEMENT FOR REFINING COPPER CONCENTRATE - The invention relates to a method and to an arrangement for refining copper concentrate ( | 05-28-2015 |
20150197828 | METHOD OF USING A SUSPENSION SMELTING FURNACE, A SUSPENSION SMELTING FURNACE, AND A CONCENTRATE BURNER - The invention relates to a method of using a suspension smelting furnace and to a suspension smelting furnace and to a concentrate burner ( | 07-16-2015 |