KR200278281Y1 - Tapping socket of blast furnace opening machine - Google Patents

Abstract

The present invention relates to a tapping socket mounted to the blast furnace opening,

The front end is formed with a clamp hole 11 to which the screw rod 125 is mounted, and the rear end has a female threaded portion 12 to which the hammer rod 139 is coupled, and communicates with the clamp hole 11 in the axial direction. A body 10 having a plurality of inlet holes 14 extending from the end of the central hole 13 to the outer circumferential surface of the sliding body 10a, and the sliding A first casing (21) having an annular dust seal (22a) in close contact with the outer circumferential surface of the body (10a) and a first bushing member (21) having a packing member (22b), and having a female screw (23) formed at the rear inner peripheral edge ( 20 and the male screw 33 coupled to the female screw 23 of the first casing 20 is formed on the outer circumferential edge of the tip, and has an annular dust seal 32a in close contact with the outer circumferential surface of the sliding body 10a. The second bushing member 31 having the packing member 32b is coupled and supplies a mixed water of cooling water and nitrogen to one side of the outer surface. While forming a through hole 34 connected to one end of the flexible conduit 136, and equipped with a plurality of fixing wings 35 for drilling the fastening hole (35a) is fastened to the fastening member 36 of the frame bracket 37 It provides a tapping socket of the blast furnace opening machine comprising a second casing 30 is fixedly installed as the nut member (36a).

Description

Tapping socket of blast furnace opening machine

The present invention relates to a tapping socket mounted on the blast furnace opening, and more specifically, to the outer peripheral surface of the forward, backward and rotationally operated body is equipped with a casing member in a two-part structure to prevent damage of the internal components due to the impact force, molten iron, In case of sludge reflux inflow, it is possible to quickly remove foreign substances by simple disassembly work, and to provide easy tapping socket of blast furnace opening machine that can reduce the work load of workers and extend the service life.

In general, the operation of the blast furnace is charged with iron ore and coke (blast) in the furnace and blows the hot air blown from the hot blast furnace equipment into the blower tube, producing the water by reducing and melting the iron ore.

In such a furnace operation, in order to discharge the melt in the furnace to the outside of the furnace, the exit port must be penetrated as a separate device, an opener. Opening machines used for such opening operations are shown in FIGS. 1,2 and 8. The opener 100 has 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 body 115 is provided with a blow hammer 132 for generating a blow force in the forward and reverse directions therein and a drill hammer 134 for generating a rotation force, such that the screw rod 125 is rotated and hit, and the blow hammer 132 ) And the flexible conduit 136 penetrating to the center of the drill hammer 134 is configured to supply nitrogen and cooling water to the outlet 140 through the central hole 125a of the screw rod 125.

As shown in FIG. 2, the conventional tapping socket 120 mounted on the opening 100 is formed at one end with a female thread 122 for connecting to the body 115, and at the other front end. A clamp hole 124 is formed for fitting the rear end of the screw rod 125, and the female screw portion 122 and the clamp hole 124 communicate with each other to form nitrogen from the body 115 toward the screw rod 125. And opening the cooling water while discharging the cooling water to the outlet 140 at a pressure of approximately 10 kg / cm ² .

However, the conventional tapping socket 120 is installed because the flexible conduit 136 for supplying nitrogen and cooling water extends through the centers of the hammer 132 and the drill hammer 134 of the body 115. The coolant flows out of the joint by vibration of the gas, and enters the impact hammer 132 and the drill hammer 134 and is absorbed by the oil rings of each drive unit, thereby preventing lubrication and corroding the internal parts when the air hole is stopped. There was a problem that causes equipment trouble by causing.

In addition, Figures 3 and 4 show another conventional tapping socket, such a conventional tapping socket 220, as disclosed in the Republic of Korea Utility Model Registration Application No. 97-24994, female thread portion on the front and rear ends Body 122 and a clamp hole 124 are formed, the body 225 is formed through the plurality of inlet holes 229 in the circumferential direction from the central flow path extending rearward of the clamp hole 124, the body 225 Cylindrical casing 226 mounted via a plurality of bearing members 224a and 224b so as to allow free rotation of the rod, and a plurality of packing members mounted between the body 225 and the casing 226. 228, an annular liner 227 mounted to the outside of the bearing members 224a, 224b, and a flexible conduit 223 for supplying a mixture of nitrogen and cooling water to the inlet 229. The outer surface of the casing 226 is assembled to the slide guide 222 Consists equipped with guide vanes (226a).

Accordingly, the conventional tapping socket 220 operation during the opening of the exit port 140 of the blast furnace is performed by the body hammer 132 of the hammer 132 of the body 115 connected to the female screw 122. Since the forward and backward action of the and the rotation of the body 225 by the drill hammer 134 is transmitted to the bit 126 of the screw rod 125, the exit port 140 closed as the bit 126 Simultaneously with the opening, the sprayed water mixed with the cooling water and nitrogen is supplied through the inlet hole 229 and the center hole 125a of the screw rod 125 in communication with the flexible conduit 223. The bit 126 to perform could be cooled.

However, the following problem occurred during the opening work using the opening machine 100 employing such a conventional tapping socket 220.

That is, when the body 225 hits the body as a strike hammer 132 in the forward and reverse directions, since the external force is applied to the casing 226 that is heavy in addition to the body 225, the body 225 and the casing ( As the bearing members 224a, 224b, and the liner 227 mounted between 226 are damaged by the inertia and reaction of the casing 226, which is a heavy object, the rotational operation of the body 225 and the body ( 225) and the sealing between the casing 226 is not made properly, leaking the injection water occurred.

In addition, molten iron and sludge in the furnace are flowed back through the injection hole 229 of the bit 126 by the furnace internal pressure (1.5 kg / cm ²⁾ at the completion of opening, and the body 225 and the casing ( Since the 226 is integrally assembled and difficult to disassemble, it is very difficult to remove the molten iron and sludge that flows back and adhere to the inside of the casing 226, and the disassembly work takes a lot of time. There was a problem that the service life of the tapping socket 220 is shortened for one company when blocked.

Therefore, the present invention is to solve such a conventional problem, the object of which is to provide a casing member in a two-part structure on the outer circumferential surface of the body to be moved forward, backward and rotation, to prevent damage of the internal components due to the impact force, It is to provide a tapping socket of blast furnace opening machine that can remove foreign substances quickly by simple disassembly work when molten iron and sludge flow back inflow, and it is easy to handle, reducing work load of worker and extending service life.

1 is a schematic configuration diagram showing a general blast furnace opening machine,

2 is an assembly view showing a tapping socket according to the prior art,

3 is a perspective view showing another tapping socket according to the prior art,

Figure 4 is a longitudinal sectional view showing another tapping socket according to the prior art,

5 is an assembly configuration showing a tapping socket of the blast furnace opening machine according to the present invention,

Figure 6 is an operating state showing the tapping socket of the blast furnace opening machine according to the present invention,

Figure 7 is an exploded perspective view showing a tapping socket of the blast furnace opening machine according to the present invention,

8 is a perspective view showing a blast furnace opening machine employing a tapping socket according to the present invention.

Explanation of symbols on the main parts of the drawings

1 ...... Taping socket 10 ..... Body

11 ...... Clamp hole 12 ...... Female thread

13 ...... Center hole 14 ...... Inlet hole

20 ... first casing 21 ... first bush member

22a, 32a ...... dust seal 22b, 32b ...... sealing member

23 ...... Female thread 30 ...... 2nd casing

31 ...... Second bushing member 33 ......

34 ...... Through hole 35 ......

36 ...... Fastening member 37 ...... Frame Bracket

The present invention as a technical configuration for achieving the above object,

In the opening machine to open the exit of the blast furnace,

The front end forms a clamp hole for mounting the screw rod, the rear end forms a female screw portion to which the hammer rod is coupled, and forms a central hole having a predetermined length in communication with the clamp hole and extending in the axial direction, and the end of the central hole. A body formed with a plurality of inflow holes extending from the outer peripheral surface of the sliding body to

A first casing having an annular dust seal in close contact with an outer circumferential surface of the sliding body and a first bushing member having a packing member, and having a female screw formed at a rear inner rim thereof;

A male thread coupled to the female thread of the first casing is formed on the outer circumferential edge of the first casing, and a second bush member having an annular dust seal and a packing member is in close contact with the outer circumferential surface of the sliding body, and one side of the outer surface has cooling water and nitrogen and A second casing which is formed as a nut member fastened to the fastening member of the frame bracket by forming a through hole connected to one end of the flexible conduit for supplying the mixed water of By providing a tapping socket of the blast furnace opening machine characterized in that.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

5 is an assembly configuration showing a tapping socket of the blast furnace opening machine according to the present invention, Figure 6 is an operating state diagram showing a tapping socket of the blast furnace opening machine according to the present invention, Figure 7 is a blast furnace dog according to the present invention 8 is an exploded perspective view illustrating a tapping socket of air, and FIG. 8 is a perspective view illustrating a blast furnace opening machine employing a tapping socket according to the present invention.

The tapping socket 1 of the blast furnace opening machine according to the present invention, as shown in Figures 5 to 8, the screw rod 125 and the body (attached to the tip end of the bit 126 opening the exit port 140, and the body ( While connecting between the hammer 132 mounted in the 115 and the hammer rod 139 of the drill hammer 134, the mixed condensed water mixed with the cooling water and nitrogen is supplied from the flexible conduit 223 to the bit 126 without leaking. The tapping socket 1 is composed of a body 10 and first and second casings 20 and 30 assembled into a bipartite structure.

That is, the body 10 forms a clamp hole 11 in which the rear end of the screw rod 125 is fitted and fixed to the front end, and the female screw part 12 in which the front end of the hammer rod 139 is fastened and fixed to the rear end. The central hole 13 communicating with the clamp hole 11 extends a predetermined length in the rearward axial direction, and the first and second casings 20 and 30 are formed from the end of the central hole 13. ) Is equipped with a plurality of inlet holes 14 extending radially to the outer circumferential surface of the slide body (10a) is assembled so that the slide movement, the flexible conduit 136 through the inlet hole (14) Fluid forcedly introduced from the mixture, that is, mixed water of nitrogen and cooling water, is delivered to the bit 126 through the central hole 125a of the screw rod 125 mounted in the central hole 13 and the clamp hole 11 and sprayed. do.

In addition, the first casing 20 installed on the slide body 10a of the body 10 has an annular dust seal 22a and a packing member 22b that are in close contact with the outer circumferential surface of the slide body 10a. A first bush member 21 is mounted, and a female screw 23 is formed on the rear inner peripheral edge. In addition, the second casing 30, which is assembled into a bipartition type to facilitate disassembly and assembly with the first casing 20, has a male screw 33 coupled to the female screw 23 of the first casing 20. A second bush member 31 formed on the outer periphery of the front end and having an annular dust seal 32a and a packing member 32b attached to the outer circumferential surface of the sliding body 10a similarly to the first casing 10 on the inner circumferential surface thereof. ), And configure. At this time, between the first and second bush members 21 and 31 is a cylindrical empty space G which is always exposed to the inlet hole 14 of the body 10 so that the supplied mixed water is introduced. Is formed

In addition, the second casing 30 is supplied with mixed water mixed with nitrogen and cooling water to form a through hole 34 communicating with the empty space G, and a fastening hole 35a formed on an outer surface thereof. With a plurality of wings 35, the fastening member (35a) is fitted with a fastening member (36), one end of which is fixed to the frame bracket (37) of the opening machine (100), and then the nut member (36a) is fastened to the other end Accordingly, the first and second casings 20 and 30 screwed in a bipartisan type for easy disassembly are connected to the hammer rod 139 of the hammer hammer 132 and the drill hammer 134, and thus have a predetermined hang. It is fixedly installed on the frame bracket 37, which is a fixed member installed in position differently from the body 10 that is rotated while the front and rear reciprocating operation.

Referring to the operation and effect of the tapping socket of the blast furnace opening machine having the configuration as described above are as follows.

As shown in FIG. 8, the tapping socket 1 of the present invention is provided between a screw rod 125 with a bit mounted at the tip, and a hammer rod 139 connected to a hammer hammer 132 and a drill hammer 134. In the case of opening the opening 140 of the blast furnace as the opening machine 100 equipped with the first, first, the hitting hammer 132, the drill hammer ( When the 134 is operated, the screw rod 125 is rotated in one direction while moving forward and backward reciprocating at a predetermined stroke distance, thereby opening the closed exit port 140 as the bit 126 mounted at the end thereof. To start.

In this case, the tapping socket 1 of the present invention is wetted with the body 10 mounted between the screw rod 125 and the hammer rod 136 and the outer peripheral surface of the sliding body 10a of the body 10, As the first and second casings 20 and 30 connected to the frame bracket 37, which is a fixed member, the first and second bushing members of the first and second casings 20 and 30 are fixed. (21), (31) In the inner circumferential surface, the body 10 is rotated in one direction while moving forward and backward reciprocating a certain stroke according to the operation of the hammer hammer 132, drill hammer 134, the screw rod connected to it ( The opening of the starting port 140 is started as the bit 126 of 125.

In addition, the mixed water mixed with nitrogen and cooling water forced through the flexible conduit 136 having one end connected to the through hole 34 of the second casing 30 is mixed with the first and second casings 20 and 30. Inflow into the empty space (G) between the first and second bush members 21 and 31 formed by the assembly, and introduced into the central hole 13 through the inlet hole 14 of the body 10 The mixed water is guided to the injection hole of the bit 126 through which the opening work is performed through the center hole 125a of the screw rod 125 mounted in the clamp hole 11 so that cooling is performed.

At this time, the dust chambers 22a, 32a and packing members 22b, 32b of the first and second bush members 21, 31 are formed on the outer circumferential surface of the slide body 10a of the body 10. Since they are in close contact with each other, the mixed water supplied into the empty space G such that the forward and backward reciprocating operation and the rotating operation of only the body 10 is performed is the sliding body 10a and the first and second parts of the body 10. Not only to prevent the leakage of water to the outside through the assembly gap between the bush members (21) and (31), but also to prevent foreign matter from entering.

Here, the inlet hole 14 penetrated in the circumferential direction overlaps with the first and second bush members 21 and 31 during the forward and backward reciprocating operation of the body 10 so that the inlet is not sealed and is always empty. It is to be formed to communicate with the central hole 13 on the outer circumferential surface of the slide body (10a) in accordance with the forward and backward stroke distance of the hammer rod 139 to maintain the state exposed to the space (G).

On the other hand, the molten iron and sludge in the blast furnace at the same time as the opening of the outlet 140, the injection hole of the bit 126, the central hole 125a of the screw rod 125, the central hole 13 of the body 10 And backflow into the empty space G between the first and second casings 20 and 30 assembled through the inflow hole 14 and fixed to the wall, the front and rear ends of the female screw 23 and the male screw 33. As it is screwed into a two-divided structure, easy to disassemble, and the light weight of the first and second casing (20), 30 is easily separated from each other, it is possible to easily remove the foreign matter stuck inside.

In FIG. 8, reference numeral 119 denotes a roller moving along the guide 110, and 118 denotes an air switching valve.

According to the present invention as described above, it is mounted between the screw rod 125 and the hammer rod 139, the front and rear reciprocating, the body of the rotary operation 10 and the two-divided structure that is assembled to be able to wet the outer peripheral surface By constructing the first and second casings 20 and 30, the internal components are damaged by the striking force of the hammer rod 139 to prevent the sealing force and the rotational operation from becoming difficult as before. It can be extended, and it is possible to easily remove the foreign substances by easily disassembling the first and second casings 20 and 30 which are light in weight when foreign substances are attached by the reverse flow of molten iron and sludge, thereby significantly reducing maintenance time and improving work productivity. In addition, while reducing a worker's workload, a practical effect of performing a stable opening of the exit port 140 without a leakage of mixed water is obtained.

Claims (1)

In the opening machine to open the exit 140 of the blast furnace, The front end is formed with a clamp hole 11 to which the screw rod 125 is mounted, and the rear end has a female threaded portion 12 to which the hammer rod 139 is coupled, and communicates with the clamp hole 11 in the axial direction. A body 10 having a plurality of inlet holes 14 extending from the end of the center hole 13 to the outer circumferential surface of the sliding body 10a, forming a central hole 13 having a predetermined length extending; A first bush member 21 having an annular dust seal 22a in close contact with the outer circumferential surface of the slide body 10a and a packing member 22b is coupled, and a first threaded female thread 23 is formed on the rear inner peripheral edge. Casing 20, A male screw 33 coupled to the female screw 23 of the first casing 20 is formed on the outer circumferential edge of the tip, and the annular dust seal 32a and the packing member 32b are in close contact with the outer circumferential surface of the sliding body 10a. The second bushing member 31 having a) is coupled, and on one side of the outer surface forms a through hole 34 connected to one end of the flexible conduit 136 for supplying a mixture of cooling water and nitrogen, and a fastening hole. And a second casing 30 fixedly installed as a nut member 36a fastened to the fastening member 36 of the frame bracket 37 by having a plurality of fixed blades 35 perforated 35a. The tapping socket of the blast furnace opening machine to say.