Electromagnetic induction slag melting furnace bottom flow type anti-vortex center stopper nozzle lifting mechanism

Abstract

The invention relates to an underflow-type anti-vortex central stopper and nozzle lifting mechanism of an electromagnetic induction slag smelter. The mechanism is characterized in that supports are fixed on fixed beams, a cross beam is fixed on the supports through springs, a drive nut is fixed on the cross beam, a threaded part of a lifting sleeve is connected with the drive nut in a screwed manner, an oil motor is fixed on an oil motor support, a gear is connected with an output shaft of the oil motor and meshes with a gear of the lifting sleeve, a stopper is fixed at the top of the lifting sleeve, and the stopper locates at an upper opening of a nozzle. The mechanism has the advantages that the process using the mechanism compared to the cupolas rock wool process can save more than 60% of energy consumption per ton; secondary environment pollution is avoided; the bottom-leak deslagging nozzle guarantees accurate flow; the furnace burden structure is wider in adaptation range; a slag bath with the upper temperature limit of 1700 DEG C is satisfactory to melts of various qualities, with no need for coke; magnetic stirring and mechanical stirring guarantee even melt ingredients; energy consumption is low, heat efficiency is high, waste residue is little, and fiber forming rate is evidently advantageous as well as cost.

Description

technical field [0001] The invention proposes an electromagnetic induction slag melting furnace bottom flow type anti-vortex center stopper nozzle rotating lifting mechanism, which belongs to the technical field of slag melting equipment. Background technique [0002] The process energy consumption of blast furnace ironmaking accounts for about 60% of the total energy consumption of the iron and steel industry. Blast furnace slag is a kind of solid waste discharged from blast furnace ironmaking. Its treatment process not only consumes a lot of energy, but also discharges a lot of harmful substances. Therefore, it is necessary to carry out research on the recycling of blast furnace slag, which is an industrial solid waste. The slag discharged during the blast furnace ironmaking process, also known as blast furnace slag, can be divided into steelmaking pig iron slag, foundry pig iron slag, ferromanganese slag, etc. In some areas of China and the Soviet Union, titanium-magnet...

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Problems solved by technology

[0016] The controllable and constant flow of slag flow is the key to the production of high-quality mineral wool by the subordinate injection method and centrifugal method. The bottom of the holding furnace is thick, and there is a long section of nozzle temperature that is low. The molten slag will block the channel, and the high temperature cannot be controlled. flow rate of slag flow

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