SU1629716A1 - Cupola furnace - Google Patents

Abstract

The invention relates to metallurgy, in particular, to designs of cupolas for smelting iron. The purpose of the invention is to increase the efficiency of use in chip smelting and the efficiency of smelting by using the heat of exhaust gases to preheat the charge. The Kuskova charge is loaded into the chimney 4, and from there device 6 into the shaft 2 of the cupola. Coke, together with metal shavings, is fed into the shaft through device 8. Exhaust gases from the smelting zone enter the precipitation chamber 7, where carbon dioxide is burned through the window 5 into the flue duct, filled with the charge, and heat the last . Coke loading together with chips in the cupola eliminates waste and sintering of chips during smelting. Making the upper part of the body in the form of a precipitation chamber 7 eliminates the removal of chips from the cupola, and equipping the chamber with the afterburning unit 9 improves the melting efficiency due to the high degree of heat recovery from the exhaust gases. 1 h p f-ly. 1 il. cl

Description

It produces a large economic effect due to more complete use of metal shavings as the cheapest component of the charge, as well as less coke consumption due to effective utilization. After ignition of the idler tube into the chimney 4, through the top-hole window 10, a metal lump is loaded, the portion of which is

6 is fed to the cupola shaft. After that on. 30, the physical and chemical heat of the lame metal charge of the devices 8 is supplied with coke along with chips.

When feeding, blowing through the tuyeres 3 due to the combustion of the coke’s fuel from the colostrum starts from the process of heating and melting the metal lumpy mixture and chips, which are fed in layers to the shaft of the cupola. As the charge column descends, its level is replenished, while from the flue gases.

Claims (2)

1. A cupola containing a body, tuyeres and a chimney connected to the mine shaft of the waggon: / through the window in the upper part of the body of the device sosnoe device-8 directly along the axis of the cupola 40 fuel loading in the mine, located in physical and chemical heat from waste gases. Invention Formula 1. A cupola containing a body, tuyeres and a chimney connected to the mine shaft of the waggon: / through a window in the upper part of the body of the device to load the charge into the shaft, placed in the chimney, coke is fed together with metal chips to the smelting zone, and then the loading device 6 is turned on and a portion of the metal lump mixture is fed to the layer of coke with chips. Exhaust gases from the smelting zone enter the precipitation chamber 7, where, due to the decrease in their speed, complete afterburning takes place at the expense of node 9 afterburning the upper part of the body, which is characterized by the fact that, in order to increase the efficiency of using metal shavings during smelting, the upper part of the body is made in the form of a settling chamber. 2. The cupola of claim 1, characterized in that, in order to increase the efficiency of smelting by using heat, waste (carbon monoxide) is sent through 50 gases to preheat the charge, the precipitator is a window 5 to the chimney 4, The filled metal / metal chamber is equipped with a node afterburning lump charge. Because smoke exhaust gases. Compiled by P.Matveev. Editor E.PappTechred M.MorgentalKorrector M.Demchik the upper part of the body, which is characterized by the fact that, in order to increase the efficiency of using metal shavings during smelting, the upper part of the body is made in the form of a settling chamber.