SU1118689A1 - Metal tipping arrangement - Google Patents

Abstract

A METAL DRAIN DEVICE, containing an intermediate tank with a skimmer and a pouring chute, characterized in that, in order to expand technological capabilities, increase the resistance of the chute, reduce losses and improve the quality of the metal, the device is equipped with an intermediate chute connecting the intermediate tank with the pouring gut, and the intermediate tank is provided with a refractory partition dividing it into a settling tank and a receiving chamber, and is installed with the possibility of rotation in a vertical plane.

Description

(L

WITH

CX)

but

00

with

one

The invention relates to ferrous metallurgy, in particular to devices for draining a liquid metal, preferably into a mixer.

The closest to the proposed technical essence and the achieved result is a device for pouring metal into the mixer, containing an intermediate tank with a skimmer and filling chute M.

The disadvantages of the known device are the inability to drain metal for steel-making units directly into casting-iron casting ladles. They are alternately placed under the drain toe of the mixer during technical problems of the mixer, its repair and heating, and the durability of the end wall of the mixer at the place of installation of the replaced beaker of the lined chute is not sufficiently resistant to the replacement of the lining of the lining of the mixer at the place of installation of the alternator of the lined chute, insufficient resistance of the end wall of the mixer at the place of installation of the lined chute of the lined chute is not sufficient; caused by the constant positioning of the replaceable sock of the lined groove in the high temperature zone J of the metal being drained, caused by its discharge through the layer of blast-furnace slag, metal loss together with thickened slag, caused by the absence of metal sludge and a violation of the slag-metal level in the intermediate tank due to uneven wear of the bottom of the metal socks and slag and the lack of possibility of level adjustment zi with the location of the container on a stationary stand.

The aim of the invention is to expand the technological capabilities of the device, increase the resistance of the chute, reduce losses and improve the quality of the metal to be drained.

. The goal is achieved by the fact that a device for metal discharge, containing an intermediate tank with a skimmer and a filling chute, is equipped with an intermediate chute connecting the intermediate spacing tank to the filling chute, and the intermediate tank is equipped with a refractory partition dividing it into the settling and receiving chambers and installed with the ability to rotate in a vertical plane.

FIG. 1 shows a device for metal discharge, a plan view, FIG. 2 shows section A-A in FIG. 1, in FIG. 3 is a section b-B in FIG. one.

186892

The device contains an intermediate tank 1, divided by a refractory partition 2 into two chambers: a settling chamber 3 with a drain toe 4 for metal, a drain toe 5 for slag and a skimmer 6 and a water receiver 7 with a drain toe 8 for metal. The tank 1 is equipped with a mechanized cover 9 with fuel Q burners 10. Under the drain socks. 4 and 8, for the metal of the intermediate tank, there is a refractory ditch 11 connecting the intermediate tank with the lined chute 12,

located on the trolley 13 with the possibility of introducing its cooled drain sock 14 into the window of the drain sock 15 of the mixer 16. The refractory ditch 11 is located along the axis of the cast iron overpass, and its drain sock is installed above the hatch and working platform of the mixer to drain the metal into the iron casting ladles 17. The refractory partition 2 along the 5th cell exceeds the slag level in chamber 3 to prevent it from overflowing into chamber 7 and can reach the level of the upper end of tank 1 to prevent slag splashing into chamber 7. Supply and discharge of water for cooling the waiting of the nose 14 of the chute 12 is carried out by flexible metal pipes 18. The intermediate tank 1 is fixed on the frame 19 installed on the working platform of the mixer with the possibility of rotation in the vertical plane with the help of jacks 20.

The device works as follows.

Under drain toe 5 for slag

 intermediate tank 1 set the slag bowl 21.

The cast iron is delivered from the blast furnace in the cast iron ladles 22.

5 To drain the metal into the mixer open the bottom 9 of the intermediate tank 1, simultaneously stop the supply of fuel to the burners 10, the carriage 13 with the groove 12 is moved to the side of the mic, switch on the cooling water to the drain socket 14 of the chute and enter it into the drain window of the mixer IS toe 16, while the receiving funnel of the lined chute is located under the drain toe of the refractory ditch 11. Such a position of the device is the starting point for draining the metal into the mixer (Fig. 1).

Using a casting crane made of iron-carrying ladles 22, all the slag and the upper metal layer are first poured into the settling chamber 3, and then moving the bucket 22 over the refractory partition 2, the metal freed from the slag is drained into the receiving chamber 7. From chamber 7, the metal after it filling the drain toe 8, the refractory ditch 11, the lined chute 12 and its drain toe 14 is drained into the mixer 16. After the chamber 3 is filled with metal and slag and the slag and part of the metal from the ladle is subsequently drained, the separation of slag and metal begins. The metal through the skimmer 6 through the drain toe 4, the refractory ditch 11, the lined chute 12 and its drain toe 14 enters the mixer 16, and the slag from the chamber 3 through the drain toe 5 is drained into the slag cup 21.

After the metal is drained into the micron, the cart 13 with the lined gland 12 is moved away from the mixer until they take the position shown in FIG. 3, close the intermediate tank 1 with the krushka 9, turn on the fuel supply to the burners 10, reduce or completely stop the supply of cooling water to the drain sock 14 of the lined trough 12 until the next injection into the drain sock 15 of the mixer 16.

When the fuel is supplied through the burners 10 (Fig. 2), a high temperature is created in the space above the metal and slag to maintain the slag in a liquid state with good fluidity, which helps to improve sludge metal conditions and remove slag from chamber 3 to the slag cup 18 during subsequent drains .

In case of technical malfunctions of the mixer, its repair and heating, it becomes necessary to drain the metal directly into the priming buckets 17, for which the supply of fuel to the burners 10 is stopped, they open

Krshka 9 and the pouring valve will drain the putty and the top metal layer from the bucket 22, first into chamber 3, and then pure metal into chamber 7 /, from 1186894

where the metal over the drain socks 4 and 8 and the refractory ditch 11 is poured into the pouring ladle 17, and the donkey over the drain sock 5 into the slag bowl 21. J The metal is poured into the mixer through the window in the drain sock in close proximity to the metal level in it allows reduce spatter formation, which contributes to an increase in the lining of the mixer, reducing slag formation in it.

When metal and slag is drained from chamber 3 through drain socks 4 and 5, their bottom is subjected to wear, when J5 than the bottom of the drain sock 5 wears out faster than it creates the prerequisites for metal to leave with the slag in the slag cup 21. To avoid this, tank 1 is turned

20 in the vertical plane by turning the frame 19 with the help of jacks 20 until the level of the metal in the toe 4 is fully restored and the level of the slag in the toe 5.

25 Thus, the presence of two chambers in an intermediate heated tank improves the quality of the metal being drained. The location of the lined chute on the trolley allows its drain no. 30 to be inserted; juice into the mixer toe window during the draining period, which increases the durability of the mixer lining compared to the prototype, and temporary insertion of the drain toe into the area

35 high temperatures with a post conclusion help to increase the durability of the drain toe of the gutter, the location of the refractory - ditches along the axis of the cast-hole-carrying trestle,

40 lined gutter on the trolley and an intermediate tank on a frame rotatable in a vertical plane allows to expand the technological capabilities of the device due to the possibility of metal discharge not only into the mixer, but also into cast iron-carrying ladles and leveling shpak. metal in the socks of the intermediate tank, which allows

50 to exclude the supply of iron with shpak to the steel-smelting shops during the repair of the mixer, loss of metal with downloadable slag.

eleven

///////BUT ////

Fig 2 13 20

Claims (1)

METAL DRAINING DEVICE containing an intermediate container with a skimmer and a casting trough, characterized in that, in order to · expand technological capabilities; to increase the durability of the gutter, reduce losses and improve the quality of the metal, the device is equipped with an intermediate gutter connecting the intermediate tank with the casting gutter, and the intermediate tank is equipped with a refractory partition separating it into the settling and receiving chamber, and is mounted for rotation in a vertical plane. 00 s