SU1397494A1 - Arrangement for supplying oxygen into converter - Google Patents

Description

(21) 4058025 / 31-02

(22) 04/18/86

(46) 05.23.88. Bul No. 19

(71) Moscow Institute of Steel and Alloys

(72) S.S.Denga and M.P.Klyuev

(53) 669.183.13.002.5 (088.8)

(56) Tselikov A.I., Polukhin P.I. Machines and units of metallurgical plants. - M .: Metallurgi, 1978, Vol. II, p. 328.

(54) DEVICE FOR FILING OXYGEN INTO CONVERTER

(57) The invention relates to the field of metallurgy, to oxygen-converter steel production, and can be used in the design of steel-smelting workshops. The purpose of the invention is to reduce the height of the converter

the span of the oxygen converter shop, which makes it possible to reduce the capital and operating costs of its construction and maintenance. The device contains an oxygen lance 1, a trolley 2, a hinge 3, upper rails 4, carriage 5, lower rails 6, a fixture 7 for fixing the tuyere, a fixed stop 8, water and oxygen lines 9, connecting the tuyere to the shop main lines 10. Reduction the height of the converter span is achieved by transferring the tuyere when it is removed from the converter after the drive into an inclined position with respect to the converter, and an additional fixed stop under the center of the tuyere weight facilitates the replacement and maintenance of the tuyere. 1 hp f-ly, 1 ill.

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The invention relates to metallurgy, more specifically to oxygen-converter steel production, and can be used in the design of steel-smelting workshops.

The purpose of the invention is to reduce the height of the converter span of the oxygen converter shop.

The drawing shows the proposed device "

The device contains an oxygen lance 1, a trolley 2, a hinge 3, upper rebs 4, carriage 5, lower rails 6, a fixture 7 for fixing tuyeres, a fixed stop 8, water and oxygen lines 9, connecting the tuyere with the shop roads 10,

The device works as follows.

In the initial position, the lance 1 is connected to the upper end with the trolley 2 by means of a hinge 3, the trolley is mounted on rails 4 at a distance of 5 sin, i + (1-0.25 cosV) from the vertical axis of the converter, and the rails are located at height Hp L ., cosoi from the converter throat plane. The lower end of the tuyere rests on the carriage 5 mounted on the lower additional rails 6 located at a height of 5 L-cosot from the plane of the converter neck and on the fixed support 8 located under the center of the body of the tuyere. To insert the tuyere into the converter, the carriage 2 moves along the upper rails 4 in the direction of the vertical axis of the converter, and the carriage 5 moves along the bottom rails 6, moving the lower end to the converter mouth, and the speed of the carriage is greater than the speed of the carriage. When the axis of the tuyere coincides with the vertical axis of the converter, the tuyere is fixed in the center of the neck with the fixture 7, after which it can move downwards, as in a known device. The connection of the tuyere with water and oxygen lines 9 with the shop main lines is made at half the distance between

trolley and vertical axis converter.

These parameters (Hp, L and Hn) unambiguously determine the position of the tuyere at an angle p to the horizontal plane i arctg 0.5 (1-0.25 cos2 (ir cosoi

The location of the fixed stop between the carriage and the carriage allows the carriage to be retracted for replacement and maintenance of the tuyere. The load on the fixed stop will be minimal when the fixed stop is located under the center of the lance body.

When implementing the device, the height of the converter shop can be reduced by an amount (1-31 dp).

Claims (1)

1. A device for supplying oxygen to a converter containing a trolley with a tuyere mounted on it, horizontal rails for moving, trolleys, a device for fixing a tuyere in the center of the converter neck, water and oxygen lines, characterized in that, in order to reduce the height of the converter span, oxygen -converter shop, the device is additionally equipped with horizontal rails, a carriage and a fixed stop mounted in the center of the body of the tuyere, the upper end of which is connected pivotally to the cart and the lower one is placed on a carriage mounted on additional rails. 2, The apparatus according to claim 1, distinctly from the fact that the rails for moving the trolley are mounted on the converter throat plane at a height of coset, where L- is the length of the tuyere; oL is the angle of inclination of the upper conic part of the converter to the horizontal; the trolley is mounted on rails at a distance L from the vertical axis of the converter equal to L-  , 5sinei. + (1-0,25cos oL), with additional rails located at the height H, from the converter throat plane equal to H, 0.5 L cosot.