SU924107A1 - Gun for plugging taphole of blast furnace - Google Patents

Description

The invention relates to ferrous metallurgy, more precisely to the guns used for driving the log of the blast furnace.

Known gun, including the base, turning the column, the clamping device, a cylinder with a drive, suspended from the console column with a trolley, equipped with rollers, placed in the shaped grooves console gf

However, these guns have a large overall height.

The closest in technical essence and the achieved effect to the proposed is a gun for driving a log of a blast furnace, containing a rotary column with a console, on which a hinge device with a drive and a working cylinder is suspended by means of hinged levers.

.. Such an imbet gun is much smaller in overall height, which allows it to be placed under the platform for servicing tuyeres [2].

In order to properly fill the gage with the summer mass, it is necessary that the sock of the gun be installed exactly along the axis of the notch. In practice, the "notch often

2

performed with a certain vertical shift relative to the design position, which causes

with blocking known difficulties. When ^e hoditsya consistently produce alignment elektropushki.

This disadvantage is inherent in the above gun designs.

• l The purpose of the invention is to facilitate the centering of the sock of the gun along the notch axis.

This goal is achieved by the fact that in the gun for blocking the entrance of a blast furnace containing a rotary column with a console, on which a pressure device with a drive and a working cylinder is suspended by means of pivotally attached levers, while the lower part of the lever it is provided with a cylindrical pin, which is included in the bore of the upper part, and is connected with it by a screw coupler and key.

FIG. 1 shows the gun, view

25 on the side in FIG. 2 is the same, front view (toe side), in FIG. 3 - suspension arm; in fig. 4 - section A-A

'in FIG. 3

The gun consists of a base 1, on-50 portal column 2, actually push3

924107

four

ki 3, which is a cylinder for a belt mass with a drive, and a pressure device 4. The rear part of the gun is suspended from the console of the rotary column using rollers 5 placed in the figured groins 6 and mounted on the arms of the actual gun 3. The front part of the gun suspended from the console by means of levers 7 suspension. The clamping device consists of a drive 8, kinematically connected-Yu go with a screw pair, one of the elements of which is rigidly connected with the gun 3. Each lever 7 of the gun suspension consists of the lower part of the lever 9, ending with the trunnion 10 and the upper part 15 of the lever 11, in the bore axle 10 is installed. Both parts are connected to each other by means of a screw tie 12, the ends of which are screwed into the threaded holes of the parts of the ry-20 of chaga 9 and 11. In the axle 10 there are keyways, which include keys fixed in the bore wall of the upper arm eleven.

To install the gun in the working 25

position, i.e. to enter the sock into the tap hole, include a drive 8, which with the help of a screw pair moves the gun. At the same time, the shaped grooves 6 and levers 7 ensure the movement of the nose of the gun along the trajectory shown in FIG. 1 by the dashed line A.

In the case of a mismatch between the nose of the gun and the center of the notch, by rotating the tie rod 12, the length of the levers 7 is changed, thereby changing the position of the Sock vertically. Screeds 12 can also be used to ensure a tight fit of the rollers 5 to the guide surfaces of the grooves 6.

The specified adjustment of the position of the nose of the gun is made after the repair of the tap-hole or as necessary, after which the coupler stops

in the desired position (in Fig. the locking device is not shown).

The efforts in the arms arising during the operation of the gun are perceived: longitudinal - by a screw coupler, transverse - by a pin and its boring, twisting - by dowels 13.

The use of the proposed gun facilitates installation and disassembly of the gun 3, ι since there is no need for laborious disassembly of the upper hinge of the levers 7. Instead, it is enough to turn out the screeds 12. On a blast furnace of 2700 m ⁵ served by two PE-0.25 / 130 electric guns, provides annual savings of about 80 thousand rubles.

Claims (1)

Claims $ Gun for driving the taphole of a blast furnace, containing a rotary column with a console, on which a hinge device with a drive and a working cylinder is suspended by means of hinged levers, characterized in that, in order to improve the centering of the toe of the gun along the axis of the tap hole, the hinge levers are made of upper and lower parts, while the lower part of the lever is provided with a cylindrical pin entering the bore of the upper part, and is connected * with it by a screw coupler and key. 35 ’