RU1827385C - Device for introduction of powder reagents into melt - Google Patents

Abstract

SUMMARY OF THE INVENTION: to expand the operational capabilities of the device, the distribution element of the switch of the refrigerant flow to the tuyeres and powdered reagents is located on the switch housing on the side of the supply channels, and on both sides of the discharge radial channels and in the same plane with them in the housing asymmetric channels whose geometric axes intersect with the geometric axis of the inlet radial channel of the powdered reagents at the point of intersection of its axis with external surface of the rotary element. The distances between the three adjacent passage channels formed in the body of the rotary element are equal to each other and amount to 1/5 of the diameter of the rotary element. 4 ill.

Description

The invention relates to metallurgy, in particular to devices for introducing powdered reactants into molten iron or steel.

The purpose of the invention is the expansion of operational capabilities.

In FIG. 1 shows the device in the position of supplying the powdered reactants and refrigerant to the Furnace in FIG. 2 - the same, when feeding to the Furnace in FIG. 3 - the same, when feeding to the Furnace in FIG. 4 - the same, in the neutral position.

The device comprises a switch made in the form of a cylindrical body 1 with inlet 2, 3, 4 and outlet 5, 6, 7 radial channels, on both sides of which and in the same plane with them in the body 1 there are asymmetric channels 8.9, geometric the axes of which intersect with the geometrical axis of the inlet radial channel 3 of powdered reagents on the circumference of the outer diameter of the rotary element 10, made with symmetrically placed passage channels 11, 12, 13.

Conducting radial channels 2.4 are interconnected by a distribution element 14, to the inlet of which 15 a liquid or gas type refrigerant is supplied.

Powder reagent supply pipe 16 and refrigerant supply pipe 17 are connected on one side to the lance 18 of Furnace 1 and, on the other hand, are connected to an asymmetric channel 8 and an outlet radial channel 5.

The powder supply line 19 and the refrigerant supply line 20 are connected to one side

SL

h o do eat

lance 21 of Furnace 2, and on the other, respectively connected to the outlet radial channels 6 and 7.

Powder reagent supply pipe 22 and refrigerant supply pipe 23 are connected on one side with furnace 24 lance 24, and on the other, respectively connected to an asymmetric channel 9 and a radial discharge channel 7.

The distance and between adjacent passage channels 11, 12, 13 of the rotary element 10 are equal to each other and are 1/5 of the diameter of the rotary element 10,

Each of the tuyeres 18, 21,24 has an element for switching on the moving media (not shown), similar to the type at gas stations,

The operation of the device is as follows.

In order to service Furnace 1 (Fig. 1), the passage channel 13 is aligned with the radial feed channel 3 and the asymmetric channel 8. Powdered reagents pass through the channels and pipe 16 to the lance 18.

In the same position, the passage channel 12 becomes aligned with the inlet radial channel 2 and the outlet radial channel 5. The refrigerant through these channels and pipe 17 enters the lance 18 to cool it. When the lance 18 is introduced into the molten metal, the switch lever is pressed on it and the powdered reagents flow into the melt of the Furnace 1. The refrigerant also flows into the melt, where it performs the second part of the useful work of mixing the melt.

When removing the lance 18 from the melt with the help of its switch, the flow of powdered reagents and refrigerant into the furnace 1 is stopped.

To maintain Furnace 2 (Fig. 2), the passage channel 12 is aligned with the inlet radial channel 3 and the outlet radial channel 6. Powdered reagents through these channels and pipe 19 enter the lance 21. In the same position, the passage channel 11 becomes aligned with the supply the radial channel 2 and the discharge radial channel 7. The refrigerant through these channels enters the pipelines 20 and 23. When the lance 21 is introduced into the molten metal of the Furnace 2, the switch lever is pressed on it and the powdery reagents from the pipeline 19 go deep into the distribution lava. The refrigerant in conduit 23 remains stationary, and from conduit 20 enters lance 21 and cools it, after which it flows into the melt to mix it.

Through the distribution element 14, channels 4, 13. 5 the refrigerant also enters the pipe 17, but does not leave it.

When removing lance 21 from the melt using a switch, the flow of powdered reagents and refrigerant to the furnace 2 is stopped.

To maintain Furnace 3 (Fig. 3), the passage channel 11 is aligned with the radial feed channel 3 and the asymmetric channel 9. Powdered reagents through these channels and pipe 22 enter the tuyere 24. In the same position, the feed channel 12 becomes aligned with the feed radial channel 4 and outlet radial channel 7. Refrigerant through these

0 channels enter pipelines 20 and 23. When the lance 24 is introduced into the molten metal of Furnace 3, the switch lever is pressed on it and the powdered reagents from pipeline 22 enter deep into the melt.

5 The refrigerant in line 20 remains stationary, and the lance 24 enters the lance 24 and cools it, after which it flows into the melt to mix it.

0 When extracting lance 24 from the melt with the help of a switch, the flow of powdered reagents and refrigerant to the furnace 3 is stopped.

In order to establish a neutral position, the passage channels 11, 12, 13 are placed perpendicular to the geometric axis of the inlet radial channel 3 (Fig. 4). Compared with the prototype, the technical and economic advantage of the proposed device is to expand operational capabilities by providing sequential switching of the supply of powdered reagents and refrigerant to three furnaces. Positive

5 is that the advantage is achieved without providing the device with additional parts.

Claims (1)

SUMMARY OF THE INVENTION A device for introducing powdered reagents and melt, including tuyeres connected to pipelines for supplying powdered reagents and refrigerant through a switch made in the form of a cylindrical body with inlets and 5 discharge radial channels for powdered reagents and refrigerant, a rotary element located inside it with passage channels placed symmetrically to its axis of rotation, and a distribution element, characterized in that, in order to expand operational capabilities, the distribution element is placed on the switch with the sides of the inlet radial channels, and on both sides of the outgoing radial channels and in the same plane with them in the switch housing, asymmetric channels are made, geometric whose axes intersect with the geometric axis of the inlet radial channel of the powdered reagents at the point of intersection of its axis with the outer surface of the rotary element, the distances between adjacent passage channels being equal to each other and amount to 1/5 of the diameter of the rotary element. / 7ev & 1 p # g. 1 G5 / 6 1 Y /. f & gz fie. 4