Flow control device for induction furnace to produce mineral cotton, rock wool, glass ceramics, cast stone products and the like

Abstract

The invention discloses a flow control device for an induction furnace to produce mineral cotton, rock wool, glass ceramics, cast stone products and the like. A nozzle brick (8) is fixed at the bottom of the induction furnace through a water cooling tray (9), and the flow control device is provided with a water cooling eking body (5). The lower end of the water cooling eking body (5) is fixedly connected with a graphite stopper (6), and the lower end of the graphite stopper (6) is provided with a tapered stopper head (7) which is matched with a nozzle of the nozzle brick (8). The water cooling eking body (5) is connected to a rotating driving mechanism (2) through a flange and a torque limiter (1). The flow control device conducts precise control over melt supplying amount, flow is not limited by the temperature and the component of melt, adjusting can be achieved at will, the control precision is high, the influence of manufacturing of the stopper and the eking body and mounting errors on sealing can be removed, and the fact that the nozzle is closed reliably at any time can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of inorganic material production technology. Specifically, the present invention relates to a flow control device for induction furnace production of slag wool, rock wool, glass-ceramic and cast stone. Background technique [0002] At present, in the production process of domestic slag wool and rock wool, most manufacturers use cupolas as melting equipment, melt basalt, slag, dolomite, etc. with coke in the cupola and supply them to fiber-forming equipment to make fibers. Melting ore and other raw materials will cause a lot of energy consumption and serious environmental pollution. [0003] The composition of the cupola furnace is controlled by the amount of charge into the furnace, and the reaction cycle is long; the control of the melt temperature and supply is adjusted by the coke ratio and the tuyere. There is a direct relationship between temperature and supply. When the temperature rises, the supply i...

AI Technical Summary

Problems solved by technology

The composition in the furnace must be continuously adjusted, and the adjustment time is long, the efficiency is low, and the waste is large when producing products with different composition requirements.

Moreover, it is difficult for the temperature of the melt to exceed 1500°C, the melt in the furnace cannot be stirred, and the uniformity of the composition is poor

Melting ore and other raw materials will also cause a lot of energy consumption and serious environmental pollution

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