RU1772562C - Submerged-resistor induction furnace - Google Patents

Abstract

SUMMARY OF THE INVENTION The induction channel furnace contains a bath divided into a melting and distributing chamber by a partition with an opening in the lower part and induction units. The dispensing chamber is provided with an additional partition with an opening in the upper part, the lower edge of which is located below the upper edge of the partition with the opening in the lower part. 1 ill.

Description

The invention relates to metallurgy, in particular to induction channel furnaces for smelting metals and alloys, and can be used in the smelting of zinc.

A known induction master furnace comprising a bath and induction units attached to it at the side or bottom,

A known induction channel furnace, selected as a prototype, comprising a bath divided into a melting and distributing chamber by a partition with an opening in the lower part, and induction units.

- A disadvantage of the known design is the low productivity of the furnace due to downtime associated with the interaction of slag with the lining of the furnace. When the charge supply and metal selection are inconsistent, the melt level in the melting and transfer chambers fluctuates, which leads to an increase in slag on the walls of the melting chamber or to their erosion if the slag is aggressive. As a result, if slag builds up on the walls of the chamber, it is necessary to stop the furnace for a long period to

the time-consuming operation of cleaning the walls of the chamber or, in case of corrosion, to repair them. Fluctuations in the melt level also complicate the design of the mechanism for removing slag.

An object of the invention is to increase furnace productivity by reducing downtime associated with the interaction of slag with the furnace lining by stabilizing the level of the melt in the melting chamber.

This is achieved in that an induction duct furnace comprising a bath divided into. the melting and transfer chamber with a partition with an opening in the lower part, and induction units, is equipped with an additional partition with an opening in the upper part, the lower edge of which is located below the partition with an opening in the lower part, and the additional partition is located in the transfer chamber

 The drawing shows an induction channel channel, a general view.

Induction duct furnace contains a bath 1, divided into a melting 2

(L

WITH

and a distributing chamber 3 with a partition 4 with an opening 5 e of the lower part and induction units 6. The induction channel furnace is equipped with an additional partition 7 with an opening 8 in the upper part. The lower edge of the opening 8 is located below the partition 4 with the opening 5 in the lower part. An additional partition 7 is placed in the dispensing chamber 3 and divides it into the main 9 and intermediate 10. In addition, the induction channel furnace includes a metal casting pump 11 and a loading device 12.

Induction duct furnace operates as follows.

When the furnace is put into operation, as the charge is loaded into the furnace, metal is deposited in the melting chamber 2 with the simultaneous filling of the intermediate chamber 10. When the melt level rises to approximately the level of the aperture 8 in the additional partition 7, the charge is stopped and the slag trapped in the intermediate chamber 10 is removed, after which the charge is resumed. When the melt reaches the level of the opening 8 in the additional partition 7, the metal is poured into the dispensing chamber 3 and, after filling it, to the level from which the selection of metal begins, the metal casting pump 11 or other metal extraction tool starts to work.

The melt level in the melting chamber 2, on the mirror of which there is slag formed during the smelting process, remains

constant, since the metal is poured from the intermediate chamber 10 into the main dispensing chamber 9 only when the charge is loaded and in exactly the same amount as the charge is loaded. Feasibility is achieved by ensuring the stability of the level of the melt in the melting chamber, which reduces the area of interaction of the slag with the lining

the walls of the melting chamber, simplifies the mechanism of slag removal, and thereby reduces downtime associated with the removal of slag or repair of the lining. In this case, there is also no need to move the working body of the slag removal mechanism to monitor level fluctuations and excludes the possibility of metal overflow from the furnace through the slag loading window, bottom surface

which is located above the lower surface of the opening 8 in the partition 7.

Claims (1)

SUMMARY OF THE INVENTION An induction duct furnace comprising a bathtub divided into a melting and distributing chamber by a partition with an opening in the lower part, and induction units, characterized in that, in order to increase the productivity of the furnace, it equipped with an additional partition with an opening in the upper part, the lower edge of which is located below the partition with an opening in the lower part, the additional partition being placed in the transfer chamber.