SU569603A1 - Device for injecting gas-flux mixture into melt - Google Patents

Description

(54) DEVICE FOR INTRODUCTION 1

The invention relates to metallurgical metallurgy, in particular to devices for treating melts with reagents.

A device is known for introducing a gas-fusible mixture into a melt containing a bunker with a drum of dispenser of tin and a final evaporator 1. There is also known a design of an inspection device for injecting powder into reagents into a metal consisting of a reservoir of reaterts with a gas inlet pipe, and gate 2. In these devices, the supply of reagents into the liquid metal is carried out by injection of the carrier gas.

It is also known a device for introducing reagents into a liquid metal, containing a bunker, which is sealed and connected to the tuyere pipe 31.

However, all known devices do not provide uninterrupted feed of powder reagents into the metal, since the reagents hang in the bunker, which does not allow for a stable progress of refining.

The purpose of the invention is to provide continuous introduction of the flux into the melt and eliminate its hang-up.

FUEL MIXTURE

In RASP

For this, the proposed device is provided with a sprayer, for example, a propeller mounted inside a hermetic bunker, and a lance is inserted at one end into the bunker and located along its wall, and the sprayer is designed as a propeller.

The drawing shows the proposed device.

It has a hermetic hopper 1 which is simultaneously a mixing chamber; a nebulizer 2 located in the bunker, made for example in the form of a propeller connected to an electric motor 3, mounted for 1 m on the roof 4; choke 5 for carrying the carrier gas and the lance 6, one end of which is inserted into the hopper.

The device works as follows.

The electric motor 3 leads the sprayer 2, which sprays the flux 7, and the gas entering the bunker 1 through the nozzle 5, mixing with the powdered flux 7, entrains it through the tuyere into the melt.

Claims (3)

1. A device for introducing a gas flux mixture into a melt containing a sealed bunker and  characterized in that, in order to ensure the continuous introduction of the flux into the melt and eliminate its hang-up, it is equipped with a nozzle mounted inside the bunker along its axis, and the tuyere is disposed at one end in the bunker along its wall. 2. A device according to claim 1, wherein the vro atomizer is designed as a propeller. Sources of information taken into account in the examination: 1. USSR author's certificate number 398615, cl. C 21 C 1/00, 1972. 2. USSR author's certificate number 220998, cl. C 21 C 1/00, 1966. 3. Krasavtsev, NI, et al. Cast iron desulfurization, Kiev, Technika, 1975, p. 37.