SU1258840A1 - Converter - Google Patents

Description

The invention relates to ferrous metallurgy, and more specifically to the structures of converters of bottom and combined blowing.

The purpose of the invention is to improve maintainability, safety reliability and simplify the design.

FIG. a schematic representation of the converter, a general view; figure 2 - node I in figure 1; in FIG. 3 - section A-A in FIG. 1, in FIG. 4, view B in FIG. 1; on fig.Z - section bb In figure 4; figure 6 - section GG in figure 2.

The converter includes a housing 1 with a removable bottom 2 mounted in a support ring 3 with hollow trunnions 4 and 5 and trunnion plates 6 and 7 with vertical holes 8 and 9 in them, where pipes 10 and 11 are located for supplying oxygen and protective gas, respectively . One end of the pipe 10 for supplying oxygen is connected to a hinge unit 12 fixed on the trunnion 5, and the other end is connected to a divider 13 fixed to the removable bottom 2.

One end of the pipe 11 for the supply of protective gas is connected to the hinge assembly 14, mounted on the trunnion 4, and the other to the tuyeres 15 mounted on the removable bottom 2.

The oxygen supply pipe 10 below the support ring 3 is made in the form of rigid sections 16 and 17 connected by at least three inside-lined joints 18.

The section 17 of the oxygen supply pipe 10, located between the two hinges 18 nearest to the divider 13, is installed with the possibility of adjusting the positions of wedges 19 and 20 in the bracket 21 fixed to the housing 1.

The housing l is provided with protrusions 22, which are included in slots 23 that are made on the removable bottom 2.

The hinge 18 consists of flanges 24. and 25, between which is fixed a syringe 26, which is closed inside by a pipe 27, All elements are made of stainless steel. The flanges 24 and 25 are fastened to the joints 28 and 29, which are connected with a finger 30. The finger 30 is pressed into the pull 29, and with respect to the pull 28 it is installed with a gap. The gap is selected taking into account possible movements of the oxygen supply pipe 10 in the horizontal plane. Movement in vertical

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the planes are compensated by twisting about the axis of the finger 30.

Charged gas supply pipes 1 1 can be made without compensators, since they are rigid. As compared with oxygen supply pipe 10, the displacements are displaced in the bends of these pipes. It is possible to install at the ends of the pipes 11 in front of the bottom tuyeres I5 sections of metal hoses as additional compensators.

The converter works as follows.

A lined bottom 2 with bottom wagons 15 mounted on it and a divider 13 is fed to the jack car under the converter. The bottom 2 is inserted so that the protrusions 22 on the housing 1 fit into the slots 23 on the removable bottom 2, while the flange of the nozzle 13 divider occupies a certain position. The bottom 2. fasteners to the body, then with the help of wedges 19 and 20 flanges 25 of the hinge 18 are brought to the flange of the branch pipe of the divider 13 and, after being sealed with a copper gasket, are bolted. After that, the wedges 19 and 20 are knocked out in order not to limit the possibilities of movement of the section 17 of the oxygen supply pipe 10.

Next, dock to the tuyeres 15 of the pipe 11 for supplying the gas of 1 ton of gas, after which the jack car pulls out and is removed from under the converter.

After driving the joint between the linings of hull 1 and bottom 2, the converter is ready for operation.

The bottom 2 is removed in reverse order. When the converter is without bottom 2, the section 17 of the oxygen supply pipe 10 is fixed by wedges 19 and 20.

The bottom 2 joining is performed both with the new lining and during the campaign life of the liner of the housing 1. This is because the durability of the tuyeres 15 and the liner of the bottom 2 is lower than the durability of the liner of the housing 1.

The presence of at least three hinges 18 compensates for the different movements of the pipe 10 and the housing 1 relative to the support ring 3.

The proposed design makes it possible to save the bottom replacement time by eliminating labor-intensive cutting 31

and welding works for flange preparation, increase reliability and safety of converter operation for

pipe shrinkage compensation bill

I collar relative to the support ring

2588404

caused by their uneven heat and fluctuations during purging, as well as a simple hinge design, since the movement of the bottom relative to the body is now limited.

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Compiled by A.Protasov Editor N.EgorovaTehred M.Hodanich

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Proofreader O.Lugov

Order 5086/25 Circulation 552Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Claims (2)

1. A converter containing. a housing with a removable bottom mounted in a jug ring with hollow pins and trunnion plates, a divider mounted on a removable bottom and connected by pipelines for supplying oxygen and protective gas by hinged nodes mounted on the pins, characterized in that, in order to improve maintainability, reliability and safety, the oxygen supply pipe below the support ring is made in the form of hard sections connected by at least three hinges, while the section located between the two hinges closest to the divider, installed with the ability to adjust the position in the bracket mounted on the 'case. 2. The converter according to π.1, with the fact that, in order to simplify its design, the housing has protrusions included in the grooves made on a removable bottom. SU „„ 1258840 Fig /