SU1481258A1 - Arrangement for introducing materials into molten metal - Google Patents

Abstract

The invention relates to the field of ferrous metallurgy, more specifically to devices for insertion of materials into liquid metal, and can be used in various industries that use the transportation of materials through pipelines. The purpose of the invention is to increase reliability, reduce the time of technological transitions and reduce energy consumption. A device for introducing materials into a liquid metal, comprising a housing 1, a carriage 2, a lance 3 with two differently sized flanges 5 and a mechanism for its gripping and locking with two shoulders levers 6, provided with cylindrical shafts 7 with restricting pins 11 installed in the carriage 2 housing. Flanges 4 and 5 tuyeres 3 have the ability to interact with the lower ends of the shafts 7 and with the upper ends of the double-arm levers 6 mounted on the shafts 7. The latter are made with a zigzag groove 8, the upper and lower edges of which have a four-tooth sawtooth the shape with offset of the tips of the teeth of the edges by half a step is relative to the other, with one of the faces of each tooth parallel to the axis of the shaft, and the other is a part of the screw surface, the direction of which is opposite for the upper and lower edges. The connection of the carriage 2 with the tuyere 3 occurs by pressing the carriage on the tuyere after combining the axis of the tuyere with the axis of the material supply route. 3 il.

Description

one

The invention relates to metallurgy, and more specifically to devices for introducing materials into liquid metal1, and can be used in various industries that use the transportation of materials through pipelines.

The purpose of the invention is to increase reliability, reduce the time of technological transitions and reduce energy consumption.

Fig. 1 shows a device for introducing materials into a liquid metal; a general view; pas figs. 2 is a section A-A in FIG. 1; on fpg, 3 - scanning surface B in FIG. 1.

The device for introducing materials into the liquid metal comprises a housing 1, a carriage 2 mounted therein, having a vertical movement from a drive (not shown), in which a lance 3 is fixed, provided with upper 4 and lower 5 with differently sized flanges

The nipple 2 is equipped with a locking mechanism and locking the tuyere 3, which includes two shoulders levers 6 mounted on cylindrical shafts 7 located in the carriage body 2. Zigzag grooves 8 are made on the lateral surfaces of the cylindrical shafts 7, the edges of which are upper 9 and lower 105 have the ability to interact with restrictive pins 11 installed in the carriage body 2 "The locking mechanism for locking the lance 3 also includes

five

Pory valve 12 of the route 13 for the supply of materials with a seal 14, mounted in a glass 15 with a spring 16 and a lid 17 installed in the housing of the carriage 2,

The upper ends of the 18 double-arm levers 6 have the ability to interact with the upper flange 4 of the tuyere 3, and the lower ends of the 19 cylindrical shafts 7 - with the lower flange 5 of the tuyere 3. The upper 9 and lower 10 edges of the grooves 8 are four-eared sawtooth in the form, peaks 20 and 21 teeth 22 and 23, respectively, the upper 9 and lower 10 edges are offset from each other by half a step, the faces 24 of the upper teeth 22 and the faces 25 of the lower teeth of beat 23 are parallel to the axes of the shafts 7, and each of the faces 26 of the upper teeth 22 and faces 27 of the lower teeth 23 is a screw segment the surfaces, the direction of which for the upper and lower edges 9 and 10 are opposite, while the troughs 28 between the upper teeth 22 are made with pockets 30, and the troughs 29 between the lower teeth 23 are made

Q with pockets 31.

The device works as follows.

In the initial position, the tuyere 3 is undocked with the material supply line 13 and is located outside the carriage 2, the two shoulders levers 6 do not block the opening of the carriage for the passage of the flange 4 of the tuyere 3, the shut-off valve

12 is pressed by the spring 16 to the glass 15, the limiting pin 11 is in the groove 8 of the cylindrical shaft 7 in position I.

To bring the device into working position, the housing 1 with the carriage 2 is moved in a horizontal plane above the tuyere 3 to align the axis of the tuyere 3 with the axis of the route 13 of the material supply, after which the carriage 2 is lowered into the tuyere 3 standing on the rack. after which the upper end of the tuyere 3 rests on the shut-off valve 12, the spring 16 is compressed, and the valve 12 moves in the cup 15. The axial clearance that occurs between the valve 12 and the cup 15 takes place until the device is removed from the working position, t0 0 to uncoupling of the lance 3 with the track

13 material supply After the formation of this gap and the subsequent movement of the carriage downward, first two-arm levers 6 are located below the upper flange 4 of the tuyere 3, and then the cylindrical shafts 7 rest with the ends 19 on the lower flange 5 of the tuyere 3

and stop. The restrictive pin 11, continuing downward movement together with the carriage 2, moves in the groove 8 to position II, then, acting on the helical surface of the face 27 of the tooth 23 of the lower edge 10 of the groove 8 on the shaft 7, turns the shaft 7 with two shoulders levers 6 by 45 ° and occupies position III. In this position the carriage stops „

For convenience, the diagram shows the movement of the scanning of the surface B of the cylindrical shaft 7 relative to the pin 11} and moving the pin 11 to the slot 80

When the carriage 2 is lifted, it stops contacting the lower flange 5 with the end face 19 of the shaft 7, which, under the action of its own weight, goes down, while the screw surface of the face 26 of the tooth 22 of the upper edge 9 of the groove 8 at point IV hits the pin 11, and the shaft turns 45 ° in section IV-V in the same direction as in section I-III due to the fact that the screw surfaces 26 and 27 of the upper 9 and lower 30 edges are oppositely directed,

Shafts 7, and with them the levers fixed on them. 6

with

10 15 20

25

30 35

40

45

0

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rotate by 90 °, so that they overlap the opening of the carriage 2 for the passage of the upper flange 4 of the purma 30. When the carriage is further raised, the upper flange 4 of the tuyere 3 is caught on the ends 18 of the double-arm 6, and the tuyere 3 (is pressed by the spring 16 through the check valve 2.

The spring 36 is the working body, both in the gripping mechanism, ensuring the fixing of the tuyere 3 by the cover J7 and the double-arm levers 6, and in the locking mechanism, ensuring the reliability of the seal 14.

Pockets 30 and 31, made in the valleys 28 and 29 of teeth 22 and 23, are designed to compensate for the inaccuracy of the pin 1I stopping in the extreme positions I and V that may occur during operation.

The use of the proposed device makes it possible to increase the reliability of the device due to the elimination of the control systems of the power cylinders (hydraulic or pneumatic) as well as with the cylinders of the gripping mechanisms and the tuyere. The combination of the operation of gripping and locking the tuyere with the operations of lowering and raising the carriage, allows for a shortening of the time of technological conversions. The reduction of energy consumption is achieved by eliminating the control system of the power cylinders, eliminating the consumption of energy carriers, reducing power consumption by reducing the weight of the equipment moved on the carriage.

Claims (1)

Formula and Problem A device for introducing materials into a liquid metal5 containing a body, a carriage, a form with two differently sized flanges, a locking mechanism and locking mechanisms with two shoulders, which are so that, in order to increase reliability, reduce the time of technological transitions and reduce energy costs, the device equipped with cylindrical shafts with restrictive pins installed in the carriage body, two shoulders levers fixed on the shafts, and the flanges are installed with the ability to interact with the lower ends of the shafts and with the upper ends of the double faces arm leverage the shafts are made with a zigzag groove, the upper and lower edges of which have a four-tooth sawtooth shape with the edges of the teeth of the edges shifted by half a step with respect to each Aid one of the edges of the tooth is parallel to the axis of the shaft, and the other is made in the form of a helical surface, the direction of which for the upper and lower edges is opposite 70 25 v is gv st. gb and ft