Smelting furnaces generally require a combination of refractory materials. For example, refractory bricks with good wear resistance should be used for contact with the furnace.
Smelting charge (concentrate, sinter, etc.), coke, flux, counter material and other solid materials, added from the top of the furnace, high pressure air blasted into the tuyere device on the lower side of the furnace body, in the process of going up, down. The refractory materials are melted, oxidized, reduced, etc.,the smelting process is completed. The liquid metal, bismuth, and slag are discharged from the throat or the hearth of the lower part of the furnace, and the flue gas, smoke, gaseous metal or metal oxide is discharged from the flue gas outlet of the furnace top. At present, most of them are closed furnace roofs. The furnace body is full water jacket. The refractory material is only used in the throat mouth and the hearth. Because the slag is alkaline slag, the throat part is mainly made of magnesia brick, magnesia chrome brick and aluminum chrome brick. The side wall of the hearth and the upper part of the furnace bottom are made of magnesia brick, magnesia chrome brick and aluminum chrome brick; the bottom of the furnace is inverted arched.
Reverberatory furnace refractory bricks, the operating temperature of the reverberatory furnace head is generally 1400 ~ 1500 ° C, the flue gas temperature is generally 1150 ~ 1200 ° C. The bottom of the furnace is from the bottom to the top, asbestos board, insulation brick layer, clay brick layer, magnesium aluminum brick or magnesium brick layer. Most of the furnace walls are made of magnesia-aluminum bricks or magnesia bricks. Some important parts are made of magnesia-chrome bricks for extending the service life, and clay bricks are generally used for the outer walls. The top of the furnace adopts a hanging top, the top of the small reflecting furnace is made of brick arch, and the top of the arch is made of magnesium aluminum brick.
Oxygen Bottom Blowing Furnace Refractory Brick: 1. QLS method, QLS method completes oxidation and reduction reaction in the same reactor, and the reaction process is actually divided into two steps. Whether the design of the lining is reasonable is directly related to the life of the furnace; the design and configuration of the lining includes two aspects: one is to determine the reasonable structure and size; the other is to correctly select the refractory material. The QLS method has only silver in China, the thickness of the lining is 350mm, the upper part of the molten pool is made of fused and semi-recombined magnesia chrome brick; the bottom of the molten pool is made of electrofusion and then combined with magnesia chrome brick LDMGe-26.
Where are Purchase Refractory Brick - Rongsheng Refractory Factory
As a professional refractory brick manufacturer, Rongsheng Refractory has a complete quality inspection standard and monitoring system. Rongsheng adopts double-three inspection methods, strict self-inspection, sampling inspection and re-inspection procedures to ensure that each batch of refractory materials can meet the needs of users. Standards, let customers buy comfortably and comfortably.
