Wet process for building 3t intermediate frequency electric furnace

Abstract

The invention relates to a wet process for building a 3t intermediate frequency electric furnace. By the process, 3t of materials can be melted, and the service life is prolonged. The process comprises the following steps of: (1) manufacturing a steel crucible die which has a shape of a truncated hollow cone; (2) paving an insulation layer and a thermal insulation layer by using two layers of asbestos cloth; (3) paving a furnace bottom, namely paving two layers of asbestos cloth at the furnace bottom in a staggered mode; (4) paving a furnace wall, namely paving two layers of asbestos cloth next to the inner wall of an induction coil from top to bottom, ensuring that each layer is flat and does not have any wrinkle, adhering longitudinal joints for lapping by using water glass, staggering joints of two adjacent layers, and adhering the asbestos cloth which stretches out of the upper plane to a fireproof brick plane at an upper opening of the furnace by using the water glass; (5) preparing a furnace lining material from refined quartz sand; (6) manually knotting a furnace lining, brushing a layer of water glass before filling, and tamping a filler; and (7) baking the furnace and sintering, namely baking only by using firewood after the furnace is built by the wet process, adding 50 to 60kg of firewood into a hearth for several times, and completely combusting to bake the furnace lining.

Description

technical field [0001] The invention relates to a 3t intermediate frequency electric furnace wet furnace building process which can be used for 3T material smelting and prolongs its service life. Background technique [0002] CN102278888A, the name "0.5-1 ton intermediate frequency furnace wet method furnace construction process", is characterized in that it is carried out according to the following steps: a. First cut the asbestos cloth according to the size of the electric furnace, and prepare the quartz sand mixture according to the size of the intermediate frequency furnace; b. Lay the pre-cut asbestos cloth on the coil in the cavity of the furnace to be built from top to bottom; c. Knotting the bottom of the furnace; d. Installing the steel crucible mold; e. Knotting the furnace wall; f. Knotting the top of the furnace ; g. Out of the sink knotted; h. Oven. Its disadvantages: First, the service life is short, the service life of 1 ton intermediate frequency furnace is ...

AI Technical Summary

Problems solved by technology

Its disadvantages: First, the service life is short, the service life of 1 ton intermediate frequency furnace is only increased to 15-25 days, and the service life of 0.5 ton is only 80-90 days, the cost of use is high; the second is that it is impossible to realize the production and processing of intermediate frequency furnaces over 1 ton to smelt

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