SU1183808A1 - Charging box of charging machine - Google Patents

Description

The invention relates to the field of metallurgy, in particular to the design of devices for loading materials into steel-smelting furnaces,

Whole inventions is to improve the supply of filling materials to the steel outlet from the working space of the furnace.

FIG. 1 shows a mold, side view; FIG. 2 - the same, zid 10 from above; in fig. 3 - mold in the work.

The mold of the charging machine is made cast, as usual in the form of a parallelepiped, and consists of “tank 1, bounded by the front wall — 15, side walls 3 ,. a back wall ending with a lock 5 for connecting with a charging machine trunk and a bottom 6. Inside the container 1 across it, at the side walls 20 side walls 3, an inclined partition 7 is installed, made in the form of a reflective plate at an angle of 20 hz .

Refueling the steel outlet of the open-hearth furnace with the help of lagaea my mold is as follows.

A dosed portion of refilling material, such as iron ore, ^ 0 from the usual mold for filling scrap in ^g ', _{which is} loaded by the charging machine - capacity; which, due to the presence of an inclined partition 7, concentrates mainly in the front 735 of the mold. the slope for a pair of ore-metal septum 7 may be insufficient to concentrate refueling material in the front 40 of the pan. In this case, it is compensated for when raising the trough with the trunk of the charging machine. Due to the presence of gaps in the castle part 5 between the trunk and the trough when it is raised 45, the latter sags as if increasing the angle of repose of the ore-metal pair, as a result of which the filling material takes a certain place in the front part of the trough. Then, the trough is fed through the charging port from the working area of the furnace to the location of the steel outlet and turned it over with the trunk of the charging machine. In this case, the filling material, poured over the steel outlet, closes it.

Due to the fact that the proposed mold of the charging machine is designed to supply filling materials directly to the steel outlet, it is necessary that it be. the length was equal to the distance from the maximum injected into the space of the open-hearth furnace of the charging machine to the rear wall of the furnace.

The angle n. Of the septum 7 of the proposed trough is chosen so that the distance between its upper base and the front wall 2 is equal to or greater than the length of the tank of the ordinary trough for filling scrap into the open-hearth furnace. This is due to the fact that when the proposed mold is loaded, the filling material from the ordinary mold for filling scrap into the furnace does not disperse the filling material outside the tank 1, the limited inclined partition 7 and the front wall 2,

The distance from the lower base of the inclined partition 7 to the front wall 2 is selected depending on the required amount of filling material for closing the steel outlet. In order to fill the entire material into the steel outlet when tilting it from the pan in the working space of the furnace, it is necessary that it be concentrated in front of the pan. This is achieved by the presence of an inclined partition 7, limiting the distance between it. lower base and front wall 2 of the mold.

The boundary limits of the angle of inclination of the partition of the mold is 20-45 and the distance. between the lower base of the sloping

Sections 7 and the front wall 2 Oulds 1/10 - 1/5 are set experimentally.

It is established that when the angle of inclination of the partition 7 is less than 20, the filling material does not fully concentrate in the front part of the mold, part of it. is retained on the partition wall 7 and when it is tilted in the working space of the furnace, it falls not only into the steel outlet, but also beyond it, and, therefore, the metered portion of the filling material is insufficient to close the steel outlet.

The angle of the septum 7 more than 45 'leads to a decrease in distance

1183808

between the front wall 2 of the mold and the upper base of the partition 7 or to an increase in the distance between the lower base of the partition 7 and the front wall 2 more than 1/5 of the length of the mold. In the first case, the loading of the mold is complicated, since the filling material is scattered beyond its limits, in the second filling material during its cantoek in the working space of the furnace it is poured not only into the steel outlet, but also beyond it.

The distance between the lower base of the partition ⁷ and the front wall 2 of the mold less than 1/10 of the length of the mold is not enough for the capacity of the filling material required for

refueling steel outlet of the furnace.

The use of the proposed technical

This solution will significantly ease labor and shorten the time for closing the steel outlet and, therefore, increase steel production, reduce smelting material, such as iron ore, to 10 tons at each heat, because iron ore is an oxidizing agent. reducing it in the filling allows you to increase the amount of scrap in the filling and, accordingly, reduce the consumption of liquid iron.

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FIG. 3

Claims (2)

'MULDA ROLLING MACHINE ,, Containing a front, rear and side backs, a bottom, a lock for connecting to the trunk of the filling machine and an inclined partition located across the trough, characterized in that, in order to improve the supply of filling materials to the bore outlet, The 'inclined partition' is set according to the height of the container of the mold, 'not exceeding its height. side walls, and is inclined towards the rear wall of the mold at an angle of 20–45, while the distance from the lower base of the inclined partition to the front wall of the mold is 1/10 - 1/5 of the length of the mold. A5 Fiá.1 I 1183808 2