KR200272215Y1 - Tapping socket of furnace opening - Google Patents

Abstract

The present invention relates to a device for opening the exit port to discharge the molten metal of the furnace, more specifically, the problem that the hammer does not operate when water enters the opening body when excavation of the exit port by the opener The present invention relates to a tapping socket of a furnace opening that is improved to prevent delay in departure.

The present invention, the rear end portion is formed with a female screw portion for connecting to the opening machine body, the front end portion is formed with a clamp hole for insertion of the screw rod, the rear side of the clamp hole is formed with a central channel of a constant depth, A body having a plurality of inflow holes extending from the central flow path to a circumferential surface thereof; The body has a cylindrical casing connected to the body through first and second bearings, and the body is free to rotate, and a plurality of pekings are formed on both sides of the annular flow path having inlet holes therebetween. Rotary joints formed on both sides of the first and second bearings with an annular liner formed between the body and the casing; And a flexible conduit forming a nitrogen and cooling water inlet which penetrates one side of the rotary joint, and the nitrogen and the cooling water inlet are formed to correspond to an annular flow path, and providing a mixture of high pressure nitrogen and cooling water to the inlet. It provides a tapping socket of a furnace opening.

Description

Tapping socket of furnace opening

The present invention relates to a device for opening the exit port to discharge the molten metal of the furnace, more specifically, the problem that the hammer does not operate when water enters the opening body when excavation of the exit port by the opener It relates to a tapping socket of a blast furnace opener that is improved to prevent delays in starting.

In general, the operation of the furnace is to produce iron by reducing and dissolving iron ore by charging iron ore and COKE into the furnace and blowing high temperature hot air from a hot stove facility into a blower tube.

In the furnace operation as described above, in order to discharge the melt in the furnace to the outside of the furnace it is necessary to penetrate the exit port as an opener. The openings used for this work are shown in FIG. The opener 100 is provided with a body 115 that can move back and forth along the guide 110, the screw rod 125 is mounted to the front end of the body 115 through a tapping socket 120, The opener body 115 is provided with a blow hammer 132 and a drill hammer 134 therein to rotate while the screw rod 125 to hit, the center of the blow hammer 132 and the drill hammer 134 Conduit 136 passing through is configured to supply nitrogen and coolant to the outlet 140 through the central hole (125a) of the screw rod (125).

In addition, the conventional tapping socket 120 mounted on the opening 100 as described above, as shown in FIG. 3, the female screw 122 for screwing to the opening body 115 at one end thereof. Is formed, and a clamp hole 124 for fitting the rear end of the screw rod 125 is formed at the other front end. In addition, a flow path 126 connecting the center of the female screw part 122 and the center of the clamp hole 124 is formed to be configured to allow nitrogen and cooling water to pass from the opening body body 115 to the screw rod 125 side. will be. Therefore, the opener 100 as described above proceeds with the opening work while discharging nitrogen (N ₂ ) and the cooling water to the outlet 140 at a pressure of approximately 10 kg / cm ² .

However, in the conventional method, the following problems occur.

Conduit 136 for supplying nitrogen and cooling water when opening the exit port 140 by the opening machine 100 is extended through the center of the hammer 132 and the drill hammer 134 of the opening machine body 115 Therefore, the coolant flows out of the joint due to the vibration of the facility, so that the coolant enters the inside of the drill hammer 134 and the hit hammer 132 and is absorbed by the oil rings of each drive unit to hinder lubrication. By inducing the corrosion of internal parts including the hammers 132 and 134 when the opening of the opening machine 100 is stopped, the hammers 132 and 134 are not operated during the opening work, so that starting delay and equipment trouble are generated. It was a problem of equipment accident.

The present invention has been made to solve the above problems, when digging out the opening by the opening machine, to ensure the smooth operation of the opening machine by improving the problem that the water (HAMMER) does not work into the opening of the opening machine body It is an object of the present invention to provide a tapping socket of a furnace opening that is improved to prevent delays in starting.

1 is a side view of a general opening;

Figure 2 is a side cross-sectional view showing a water blowing structure provided in a conventional air hole.

3 is a block diagram showing a conventional tapping socket (TAPPING SOCKET);

Figure 4 is a block diagram showing a tapping socket (TAPPING SOCKET) of the present invention;

5 is a cross-sectional view along the line A-A shown in FIG. 4;

Figure 6 is a side view of the opening machine equipped with a tapping socket of the present invention.

Explanation of symbols on the main parts of the drawings

5 ..... Bodybuilder 7 ..... Central Euro

9 ..... Inlet hole 10 .... Rotary Joint

12 .... Casings 14a, 14b ... First and second bearings

16 .... ball 19 .... annular euro

22 .... Packing 30 .... Support

32 .... Nitrogen and coolant inlets 100 ... Open air

115 ... Opening body 125 ... Screw rod

140. Exit

The present invention as a technical means for achieving the above object, in the apparatus for opening the exit port for discharging the molten metal of the furnace, the rear end is formed with a female screw portion for connecting to the opening machine body, the front end A body having a clamp hole for inserting a screw rod, a central channel having a predetermined depth formed at a rear side of the clamp hole, and having a plurality of inflow holes extending from the central channel to a circumferential surface thereof; The body has a cylindrical casing connected to the body through first and second bearings, and the body is free to rotate, and a plurality of pekings are formed on both sides of the annular flow path having inlet holes therebetween. Rotary joints formed on both sides of the first and second bearings with an annular liner formed between the body and the casing; And a flexible conduit forming a nitrogen and cooling water inlet which penetrates one side of the rotary joint, and the nitrogen and the cooling water inlet are formed to correspond to an annular flow path, and providing a mixture of high pressure nitrogen and cooling water to the inlet. In the provision of the tapping socket of the furnace opener characterized in that it comprises.

Hereinafter, the embodiment structure according to the present invention according to the drawings in detail.

As shown in detail in FIG. 4, the tapping socket 1 according to the present invention has a female thread 122 for being screwed to the opening body 115 at the rear end side of the body 5 having a circular outer circumferential surface. It is formed, the front end of the opening body 115 is formed with a clamp hole 124 for fixing the rear end of the screw rod 125, the flow path 7 of a predetermined depth to the rear side of the clamp hole 124 ) Is formed. Unlike the conventional structure, the flow path 7 does not extend to the female screw portion 122 and forms a plurality of branched inflow holes 9 in the middle portion toward the outer circumferential surface of the body 5.

In addition, a rotary joint 10 having a cylindrical casing 12 is fitted to an outer circumferential surface of the body 5, and the rotary joint 10 has a plurality of inner portions at the front side and the rear side of the casing 12, respectively. The first and second bearings 14a and 14b of the four balls 16 are formed, and the balls 16 of the first and second bearings 14a and 14b are shown in cross section in FIG. As described above, the body in the longitudinal direction with respect to the rotary joint 10 is inserted into the annular grooves 5a and 12a of semicircular sections respectively formed on the outer circumferential surface of the body 5 and the corresponding inner circumferential surface of the casing 12, respectively. The body 5 is configured to freely rotate in the circumferential direction in the casing 12 while preventing the movement of (5). In addition, an annular flow passage 19 having a semicircular cross section is formed in a circumferential direction at a portion where the plurality of inflow holes 9 are formed in the body 5, and the body 5 is formed at both sides of the annular flow passage 19. And a plurality of annular packings 22 are mounted between the casing 12 and the outer side of the first and second bearings 14a and 14b, respectively, to prevent foreign substances from invading from the outside. Annular liners 24 are located between the casing 12 and the body 5 respectively. In addition, the support 30 is connected to the outside of the casing 12 of the rotary joint 10 to be fixed to a frame (not shown), so that the rotary joint 10 is fixed in position during operation. On the lower side of 12) nitrogen and cooling water inlet 32 is formed through the casing 12 so as to communicate with the annular flow passage 19, the inlet 32 is connected to the flexible conduit 35 A mixture of nitrogen and cooling water is supplied from the outside to the inside of the casing 12, and is supplied to the annular flow passage 19, the inflow hole 9, and the central flow passage 7 of the body 5, and finally Through the central hole of the screw rod 125 is to be injected into the tap opening 140 in the opening work of the tap opening 140.

When the tapping socket 1 of the furnace opening machine of the present invention configured as described above is intended to open the exit port 140 of the furnace, the drill hammer 134 and the blow hammer 132 embedded in the opening machine body 115 In operation), the screw rod 125 rotates and starts to open the outlet 140 by applying rotational force and a hitting force to the outlet 140. In this case, the tapping socket 1 of the present invention connecting the opening body 115 and the screw rod 125 has a first body and a first body in the casing 12 of the rotary joint 10. Since it is rotatably connected through two bearings (14a) and (14b), it is free to rotate inside the rotary joint (10), and at the same time a flexible hose connected to the nitrogen and cooling water inlet (32) of the rotary joint ( Nitrogen and cooling water are supplied at approximately 10 Kg / cm < 2 > through 35) and flow into the annular flow passage 19 and the plurality of inlet holes 9, and flow into the central flow passage 7 of the body 5 to provide a screw rod ( 125) to the front side. Therefore, while the screw rod 125 rotates and strikes, high pressure nitrogen and cooling water are supplied to the outlet 140 to open the work.

On the other hand, the present invention as described above, such as cooling water is leaked into the opening body 115 does not corrode the hammer hammer 132 and the drill hammer 134 as in the prior art. It supplies nitrogen and coolant to the rotary joint 10 from the outside of the opener body 115 through a flexible conduit 35 separate from the opener body 115, and the nitrogen and coolant are supplied to the opener body 115. Since isolation is isolated from), the problem of corrosion of a facility as in the related art is solved.

According to the present invention as described above, when excavating the exit port 140 by the opening machine 100, the coolant, etc. enter the opening body 115 to blow hammer 132 and drill hammer 134, etc. By improving the problem that the corrosion does not work by improving the practical effect is obtained to prevent delay in departure.

Claims (1)

In the apparatus for opening the exit opening 140 to discharge the molten metal of the furnace, a female thread 122 for connecting to the opening body 115 is formed at the rear end, the screw rod 125 at the front end A clamp hole 124 is formed for insertion of a plurality of clamp holes, and a central flow path 7 having a predetermined depth is formed at a rear side of the clamp hole 124, and a plurality of circumferential surfaces extending from the central flow path 7 are formed. A body 5 in which the inflow hole 9 is formed; The body 5 has a cylindrical casing 12 connected to the body 5 via first and second bearings 14a and 14b to freely rotate the body 5, and the body 5 and the casing 12. A plurality of pekings 22 are formed on both sides of the annular flow path 19 in which the inflow hole 9 is formed therebetween, and an annular liner is formed on both sides of the first and second bearings 14a and 14b. A rotary joint (10) formed between the body (5) and the casing (12); And a nitrogen and cooling water inlet 32 penetrating through one side of the rotary joint 10, and the nitrogen and cooling water inlet 32 is formed to coincide with the annular flow path 19. And a flexible conduit (35) for providing a mixture of nitrogen and cooling water at high pressure into the furnace.