SU831784A1 - Gun for closing hole of blast furnace - Google Patents

Description

Union of Soviet

Socialist

Republics

- (72) Authors of the invention (71) Applicant

DESCRIPTION about _Ш84

INVENTIONS ^wOOIZO *

TO AUTHOR'S CERTIFICATE (61) Additional to author. certificate-wu - (22) Declared 25D0.79 (^ 1) 2832487 / 22-02 with the addition of application No. - (23) Priority -

Posted on 05/23/81, Bulletin No. 19

Date published description 230581 '

V.A. Kononov, V.A. Khretonov

State (51) M. Cl. ³

C 21 V 7/12 (53) UDC _{6b9 1b221b} .

.252 (088.8)

A.I. Orkin, A.E. Sukhorukov, p'ddrr, __

E.I. Yasakov, A.M.Shabalin, Yu.Y. The Dumb „and Yu, I. Doronin | '-t :. <=., ·.

Order of Lenin Allied Insti (54) GUN FOR DRIVING A DOMAIN OF A DOMAIN FURNACE

2

The invention relates to ferrous metallurgy, and in particular, to devices for servicing tap holes of a blast furnace.

A known gun for driving a notch of a blast furnace containing a cantilever clamping device mounted on a rotary column, a drive cylinder, the front of which is suspended from the console of the clamping device: by means of articulated levers, and the rear is connected to the suspension roller by rigid brackets G1] ·

A disadvantage of the known gun lies in its significant dimensions, which is caused by the presence of a clamping device that provides a change in the angle of inclination of the cylinder.

The closest to the proposed gun for driving a blast furnace taphole, wherein the clamping device is possible, and a predetermined tilt angle of the cylinder is achieved due to the fact that the rotary column with ²⁵ podve- cervical thereon cylinder arranged obliquely to the vertical T2 /].

The disadvantage of this device is the significant overall dimensions due to the location of the electric drive of the mechanical lung mass and the need for pushing out the gun barrel, as well as in a special very complicated gearbox, whose location in the high-temperature zone reduces the reliability of the gun for clogging the blast furnace.

The purpose of the invention is to reduce the size of the gun and increase the reliability of its operation.

This goal is achieved by the fact that the mechanism for pushing out the tray mass is made with a conical pair, in one of the gears of which a helical gear is integrated, and the other is connected by an intermediate shaft $> <to the electric drive gearbox.

In FIG. 1 shows the proposed device, a General view; in FIG. 2 is the same, plan view) in FIG. 3 is a kinematic diagram of the push-out mechanism of a flying mass.

The gun for driving the tap hole of the blast furnace contains a base 1 with an inclined column 2 mounted on it with a rotary drive 3. A console 4 is mounted on the inclined column 2, on which a working cylinder g 5 with a junction box 6 is mounted. A port 7 is installed in the 30 working cylinder 5, the rod 8 of which is connected by a screw thread 9 to a nut 10 mounted in the junction box 6. With a nut 10, the bevel wheel 11 is rigidly connected, which is connected through the gear 12 and the intermediate shaft 13 to: with the gearbox 14 of the electric drive / 15 mounted on the console 4.

The device operates as follows.

Before closing the tap hole of the blast furnace using the rotation drive 3 mounted on the base 1, the console 4 mounted on the inclined column 2 along with the pre-5 inaccurate mass of the working cylinder 5 'is installed above the main channel. In this case, the toe of the working cylinder 5 is inserted into the notch of the blast furnace at a predetermined angle due to the 20 inclination of the column 2. To drive the notch, the electric drive 15 is turned on and, through the gearbox 14 and the intermediate shaft 13, the moment is transmitted to the gear 12, which is meshed with a bevel gear wheel 11. The rotation of the bevel wheel 11, rigidly connected to the nut 10 mounted in the junction box 6, causes the translational movement of the rod 8 equipped with screw thread 9 together with the piston 7, while the flying mass is pushed out of the working cylinder 5 I’m in the gap of the blast furnace, after which the electric drive 15 is turned off. Then the drive turns on

3, and the gun returns to its original position.

The present invention allows to create a gun of reduced dimensions, which simplifies its installation on the work site, and the transfer of the electric drive mechanism for pushing inaccurate mass from the zone of exposure to high temperatures increases the reliability of the gun. In addition, instead of a special gearbox, it allows you to: use a gearbox commercially available from industry.

Claims (2)

The invention relates to ferrous metallurgy, namely, devices for servicing the blast furnace tapes. A known gun for driving a summer blast furnace, comprising a cantilever clamping device mounted on a rotating column, a cylinder with a water in which the front part is attached to the clamping console. devices by means of pivotally attached levers, and the rear arm is connected to the suspension roller by rigid brackets TI} The disadvantage of the known gun lies in its considerable dimensions, which is caused by the presence of a clamping device providing a change in the angle of inclination of the cylinder. Closest to the present invention is a gun for driving the blast furnace tap hole, in which the clamping device is excluded, and the specified angle of inclination of the cylinder is due to the fact that the pivot column with the cylinder suspended on it is set obliquely to the vertical G21 The disadvantage of this device is significant overall dimensions due to the location of the electric drive of the ejection mechanism for pushing the mass on the barrel of the gun, as well as the need for a special, very complex gearbox, which is located in the zone of impact of high tons Temperatures reduce the reliability of the gun for driving a furnace. The purpose of the invention is to reduce the dimensions of the gun and increase the reliability of its operation. The goal is achieved by the fact that the mechanism of pushing out the rail mass with a conical pair, in one of the gears of which is built up a screw gear, and the other is connected to an intermediate shaft with the gearbox of the electric drive. in fig. 1 shows the proposed device, obstructions view; in fig. 2 is the same plan view in FIG. 3 shows a kinematic diagram of the mechanism of ejection of the letting mass. The gun for driving the blast-furnace entrance contains a base 1 with an inclined column 2 mounted on it with a 3-turn drive. On the inclined column 2, a console 4 is fixed, on which the working cylinder I5 is mounted with the junction box 6. The working cylinder 5 is fitted with a port 7, the stem 8 of which is connected with the nut 6 mounted in the junction box 10 with the aid of the screw cutter 9. connected conical wheel 11, which through the gear 12 and the intermediate shaft 13, the center with the gearbox 14 of the actuator; 15, mounted on the console 4. The device works as follows. Before closing the tap hole of the blast furnace using a rotation actuator 3, mounted on base 1, the console 4 mounted on the inclined column 2 together with the working cylinder 5 pre-filled with the flow mass is installed above the main runway. At the same time, the toe of the working cylinder 5 is inserted into the notch of the blast furnace at a predetermined angle due to the tilting of the column 2. The driving drive 15 turns on the electric drive 15 and transfers gear through gear 14 and intermediate shaft 13 to gear 12, which engages with bevel wheel 11. The rotation of the conical wheel 11, which is rigidly connected with the nut 10 mounted in the junction box 6, causes the forward movement of the rod 8 provided with the screw thread 9 together with the porin, and the flying mass is pushed out of the working cylinder 5 into the house furnace furnace, after which the electric drive 1 is turned off. Then drive 3 is turned on and the gun returns to its original position. The present invention makes it possible to create a gun of reduced dimensions, which simplifies its installation on the working platform, and the transfer of the drive mechanism for pushing the bore mass out of the zone of high temperatures increases the reliability of the gun. In addition, instead of a special gearbox, it allows; apply commercially available gearbox. The invention The gun for driving the blast furnace tap hole, containing a sloping column with a rotatable console mounted on it, on which the working cylinder is located with a piston connected by means of a screw gear with an electric drive reducer, in order to reduce the dimensions of the gun and increase the reliability of its operation, the gun is equipped with a conical pair in one of the gears of which the screw transmission is built in, and the other is connected with an intermediate shaft with a gearbox of the electric drive. Sources of information taken into account in the examination 1. The author's certificate of the USSR 502030, cl. From 21 to 7/12, 1976. 2. USSR author's certificate number 152881, cl. From 21 to 7/12, 1970. 15 FIG. 2 FIG.