KR101008167B1 - An apparstus for supplying the dart in converter - Google Patents

Abstract

The present invention relates to a device for supplying darts to a dart machine (dart) for injecting the dart into the converter, the clamp 131 of the dart machine 100 for injecting the dart 3 into the converter (200). An apparatus for supplying a dart (3) to the mounting, comprising: a base (10) provided on the bottom surface of the dart machine (100) in the vicinity; A lower cylinder (15) mounted to an upper surface of the base (10) so that the rod end is connected to a vertical stand (21) reciprocally assembled to the guider (12) of the base (10); A lifting cylinder 20 which is disposed perpendicular to the internal space of the vertical stand 21 and moves up and down the upper beam 25 mounted at the rod end; The upper beam 25 is assembled in the upper beam 25 so as to be movable forward and backward, and the rod end is connected to an operation arm 35 having a latching jaw 36 on which the dart 3 is mounted at the front end thereof. It comprises a sensor unit 40 for sensing the upper cylinder 30 and the vertical stage 21, the horizontal movement distance of the operating arm 35 and the vertical movement distance of the upper beam 25 disposed horizontally in the interior. By doing so, it is possible to prevent large safety accidents caused by high temperature and splashing of the waste water and to reduce the workforce.

Converter, Dart, Dart Machine, Cylinder, Stand, Working Arm, Upper Beam

Description

Converter dart feeder {AN APPARSTUS FOR SUPPLYING THE DART IN CONVERTER}

Figure 1 (a) is an external view showing a general dart machine.

1B is an external view showing a general dart.

Figure 2 (a) (b) is a working state diagram for supplying the dart on the dart machine.

2 (c) is a state diagram in which the dart is attached to the clamp of the dart machine.

2 (d) (e) is an operation diagram in which dart is input into a converter using a dart machine.

Figure 3 is an overall perspective view of the converter dart supply apparatus according to the present invention.

Figure 4 is a front view of the converter dart supply apparatus according to the present invention.

Figure 5 is a side view of the converter dart supply apparatus according to the present invention.

Figure 6 is a plan view of the converter dart supply apparatus according to the present invention.

Figure 7 (a) (b) (c) (d) is an operating state diagram of the converter dart supply apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

2 ...... darts

10 ..... Base 15 ..... Lower Cylinder

20 ..... Lifting Cylinder 21 ..... Vertical Stand

22 ..... Shift wheel 25 ..... Upper beam

30 ..... upper cylinder 35 ..... operating arm                 

36 ..... Jam Jaw 40 ..... Sensor

41 ..... sensing elements 41a, 41b, 41c ... lower sensor

42 ..... Vertical sensing bar 42a, 42b, 42c ....

43 ..... Horizontal sensing bar 43a, 43b, 43c, 43d, 43e ... Upper sensor

100 .... Dart Machine 131 .... Clamp

The present invention relates to a device for supplying dart to a dart machine (dart machine) for injecting the dart into the converter, and more specifically, located on the side of the dart machine in the dart machine by mechanical operation of the cylinder The present invention relates to a dart supply device for converters that is secured to be installed so as to prevent large safety accidents due to high temperature and splash of molten metal and to reduce workforce.

In general, when dart is discharged from the converter of the steel mill to the outside, the slag remaining in the upper part of the molten steel is injected into the converter so as to prevent the entrance of the converter to remain in the converter without being mixed with the molten steel discharged at the end of the discharge. will be.

Since the dart introduced into the converter has an intermediate gravity of slag and molten steel, it floats on the middle boundary layer between molten steel and slag and is automatically inserted into the tap hole at the end of molten steel discharge to stop the slag discharge.

The dart machine 100 used to inject the dart into the converter is mounted to the main body 120 and the front end of the dart machine 100 so as to be able to pivot up and down on the rotating shaft 111 of the horizontal stand 110 as shown in FIG. Composed of a reciprocating member 130 for reciprocating the clamp 131 back and forth, the dart (3) is disposed perpendicular to the loading base (2) as shown in Figure 1 (b).

The operation of supplying and mounting the dart 3 before the dart 3 is introduced into the converter 200 by using the dart machine 100 is illustrated in FIG. 2) dart (3) is placed on the dart transport cart (4) directly to the dart transport cart (4), and the dart transport cart (4) up to the lower portion of the clamp 131, the tip of the dart machine 100, and the dart transport cart By lifting the cylinder (not shown) attached to the (4), the dart 3 is lifted upwards and fitted to the clamp 131 of the dart machine 100. In addition, as shown in FIG. 2 (b), the worker directly mounts the dart 3 placed on the dart holder 2 by hand, and then directly mounts it to the clamp 131 of the dart machine 100. do.

In this case, the upper rod 3a of the dart 3 is mounted and fixed to the clamp 131 of the dart machine 100, as shown in FIG. 2 (c), and the lower rod 3b is directly below. Facing the room.

Subsequently, as shown in FIG. 2 (d) (e), the reciprocating member 130 of the dart machine 100 to which the dart 3 is supplied and mounted is moved forward to the inlet side of the tilted converter 200. By dripping the dart 3 into the converter, the clamp 131 clamping the dart 3 is unclamped to drop the dart 3 into the converter 200, and then the reciprocating member. Backward (130). In this case, the tap hole 201 of the converter 200 is blocked by the dart 3 at the end of the molten steel discharge can block the discharge of the slag.

However, a worker moving the dart carrying trolley 4 on which the dart loading platform 2 is raised as described above is always poor in flatness due to spilled molten steel or slag. Since it is made in the plane, it is impossible to raise the dart carrying cart 4 in accordance with the lower end clamp 131 of the correct dart machine 100 in actual work.

As a result, most of the conventional operations for supplying and mounting the dart 3 to the dart machine 100 are dependent on the manpower of the operator, as shown in FIG. 2 (b). The dart (3) should be supplied directly from the close proximity of the converter, which contains the danger, and thus the worker is exposed to safety accidents such as burns.

In addition, since the heavy load dart 3 must be lifted by hand and mounted on the clamp 131, the dart is mounted on the dart machine 100, and the supplying of the dart is very cumbersome, and the workload is not only large but also simple. Two workers were required to supply the dart, and thus there was a problem of increasing the workforce of the steelmaking furnace.

Therefore, the present invention has been proposed in order to solve the conventional problems as described above, the purpose of which is to automatically supply the dart introduced into the converter to the dart machine automatically by mechanical operation without any safety accidents such as worker's burn accident It is to provide a converter dart supply device that can prevent the operation and reduce the manpower required for the converter operation.

As a technical configuration for achieving the above object, the present invention,

In the device for supplying the dart to the clamp of the dart machine to inject the dart into the converter,

A base provided on the bottom near the dart machine;

A lower cylinder mounted to an upper surface of the base such that a rod and a tip of the rod are reciprocally assembled to the guider of the base;

An elevating cylinder disposed up and down in the interior space of the vertical stand to elevate the upper beam mounted on the rod end;

An upper cylinder which is assembled to move forward and backward in the upper beam and is horizontally disposed in the upper beam so that the rod and the operating arm mounted to the front end of the engaging jaw on which the dart is mounted are connected;

And a sensor unit for detecting the vertical movement distance, the horizontal movement distance of the operation arm, and the vertical movement distance of the upper beam.

Hereinafter, the present invention will be described in more detail.

3 is an overall perspective view of the converter dart supply device according to the present invention, Figure 4 is a front view of the converter dart supply device according to the present invention, Figure 5 is a side view of the converter dart supply device according to the present invention, Figure 6 is a plan view of the converter dart supply device according to the present invention.

3 to 6, the apparatus 1 of the present invention is equipped near the dart machine injecting the dart into the converter to prevent the external discharge of the slag at the end of the molten steel discharge and clamp the dart machine under high temperature working conditions. As a device capable of safely supplying and mounting darts, the device 1 includes a base 10, a lower cylinder 15, a lifting cylinder 20, an upper cylinder 30, and a sensor unit 40. .

That is, the base 10 is firmly fixed to the bottom near one side of the dart machine 100 as a plurality of anchor bolts (10a), the upper surface is a flat fixing member, the top surface of the base ' C 'is mounted with a guider 12 arranged in a pair of left and right to face the guide member on the cross-section.

The guider 12 is a guide member disposed in parallel with the direction in which the reciprocating member 130 of the dart machine 100 is moved forward and backward.

And, the lower cylinder 15 is the upper portion of the base 10 so that the rod end is connected to the vertical pole 21 equipped with the movable wheel 22 on both lower sides so as to be assembled reciprocally to the guider 12. It is a cylinder member whose rear end is fixed on the surface.

In addition, the lifting cylinder 20 is a cylinder member for raising and lowering the upper beam 25 mounted on the rod front end is disposed perpendicular to the interior space of the vertical pole 21, the lifting cylinder of the The rod front end and the upper beam 25 are connected to each other by a moving block 23 assembled in the inner space of the vertical stand 21 so as to be movable up and down.

The upper beam 25 is disposed in a direction orthogonal to the direction in which the reciprocating member 130 of the dart machine 100 is advanced back and forth.

In addition, the upper cylinder 30 is a cylinder member having a rear end connected to one side end of the upper beam 25 so as to operate the operation arm 35 which is assembled to move forward and backward in the upper beam 25. The operating arm 35 to which the rod end of the upper cylinder 30 is connected is a locking step in which the dart 3 is raised to seat the dart 3 on the clamp 131 of the dart machine 100. Attach (36) to the tip.

Here, the locking jaw 36 is a plate member in which the U-shaped groove 36a is opened to the front side so that the body of the dart 3 is raised.

At the rear end of the upper beam 25, an end plate 27a on which the rear end of the upper cylinder 30 is mounted and a space plate 27b through which the upper cylinder 30 passes are mounted as a plurality of fastening members 27c. The end plate 37a on which the rod end of the upper cylinder 30 is mounted and the space plate 37b through which the rod end passes are provided at the front end of the operation arm 35 on which the locking step 36 is mounted. It mounts as a some fastening member 37c.

On the other hand, the sensor unit 40 detects the vertical movement distance of the vertical stage 21, the operation arm 35 and the vertical movement distance of the upper beam 25.

The sensor unit 40 is disposed at a predetermined interval on the sensing member 41 mounted to the vertical stand 21 and the corresponding guider 12 to detect the left and right positions of the vertical stand 21. It is provided with a plurality of lower sensors (41a) (41b) (41c), the upper end to the vertical sensing bar 42, the upper end is mounted to the upper beam 25, and to detect the lower end of the vertical sensing bar 42 The operation arm 35 is provided with a plurality of lifting sensors 42a, 42b, 42c which are arranged at a predetermined interval on the outer surface of the vertical stand 21 and detect the vertical position of the upper beam 25. A horizontal sensing bar 43 at which a tip is mounted at the front end, and an outer surface of the upper beam 25 so as to detect the front end of the horizontal sensing bar 43 at a predetermined interval, and is moved forward and backward of the operating arm 35. It consists of a plurality of upper sensors 43a, 43b, 43c, 43d, 43e for sensing the position.

The operation of the present invention having the above-described configuration will be described.

The apparatus 1 and the dart machine of the present invention are equipped with a device such as a forklift, and the dart holder 2 having one or more darts 3 installed so that the lower rod 3b of the dart 3 is fitted to the dart holder 2. Position it between (100). At this time, the dart holder 2 is positioned such that the dart 3 seated on the dart holder 2 and the lower sensors 41a and 41b of the apparatus 1 are positioned on the same horizontal line.

Supplying and mounting the dart 3 to the clamp 131 of the dart machine 100, as shown in FIG. 7 (a), the operation arm 35 is used to reverse the operation of the upper cylinder 30. The rear end of the horizontal sensing bar 43 is located at the first upper sensor 43a, and the upper beam 25 is lowered as much as possible by the lowering operation of the elevating cylinder 20. ) Is positioned at the lowermost elevating sensor 42a, while the vertical stand 21 is retracted as much as possible by the reverse operation of the lower cylinder 15 so that the sensing member 41 is connected to the first lower sensor 41a. It is located.

In this state, the operation of supplying and mounting the dart 3 of the dart holder 2 to the dart machine 100 operates the lower cylinder 15 to move forward or backward to guide the vertical stand 21 to the guider 12. By horizontal movement in the), so that the engaging jaw (36) mounted on the tip of the operation arm 35 and the dart (3) of the dart loading platform (2) to each other, the movement of the vertical stand (21) It is provided in the guider 12 and controlled by the first lower sensor 41a or the second lower sensor 41a for detecting the sensing member 41 of the vertical stand 21.

In addition, the horizontal movement of the vertical stand 21 is stopped by the detection signal of the second lower sensor 41a that detects the sensing member 41, and as shown in FIG. 7B, the upper cylinder 30 When the operating arm 35 is moved forward by the forward operation of), the dart 3 of the dart holder 2 is inserted into the groove 36a of the locking jaw 36 mounted at the tip of the operating arm 35. The body is caught, and the forward movement of the operation arm 35 is controlled by the detection signal of the second upper sensor 43b for detecting the horizontal detection bar 43 that moves with the operation arm 35.

Subsequently, the forward movement of the operation arm 35 is stopped and at the same time as shown in FIG. 7 (c), the lifting cylinder 20 in the vertical stand 21 is lifted and the upper beam 25 is raised. When moved, the dart 3 placed on the locking projection 36 of the operation arm 35 is separated from the dart holder 2 and the upward movement of the upper beam 25 is the upper beam 25. In addition, it is interrupted by the detection signal of the second rising and falling sensors 42b for detecting the rising vertical sensing bar 42.

Then, the dart 3 is separated from the dart holder 2 by the lifting operation of the lifting cylinder 20, and the lower cylinder 15 is moved forward as shown in FIG. 7 (d). In addition to the vertical stand 21, the upper beam 25 is moved forward to the dart mounting position, and the upper cylinder 30 is also moved forward to move the operating arm 35 to the dart mounting position, the operation arm ( The dart 3 placed on the locking projection 36 of the 35 is disposed directly under the clamp 131 of the dart machine 100.

In this state, when the elevating cylinder 20 is moved up once again, the upper rod 3a of the dart 3 is bitten by the clamping operation of the clamp 131 to mount the dart 3. Will be.

Here, the forward operation of the lower cylinder 15 and the upper cylinder 30 is controlled by the detection signals of the lower sensor 41c and the upper sensor 43e disposed at the top, and the lifting cylinder 20 The lift operation is controlled by the lift sensor 42c disposed at the top.

When the mounting of the dart 3 to the clamp 131 of the dart machine 100 is completed as described above, the reciprocating member 130 of the dart machine 100 moves forward toward the side of the converter 200 tilted to one side and is pulled out. At the end of the dart is to be put into the converter.

Then, the upper and lower cylinders 15 and 20 are returned to the reverse position, and the lowering and returning the lifting cylinder 20 is positioned so that the actuating arm 35 can supply the dart 3 of the second row thereafter. The operation of is done the same.

Here, the installation amount or arrangement of the dart (3) can be increased by extending the horizontal movement distance of the upper, lower cylinders (15, 30), the upper, lower sensor ( By increasing the number of installations of 41a) (41b) (41c) (42a) (42b) (42c) and (42d), more darts (3) can be arranged and efficiently supplied and mounted individually on the dart machine (200). have.

According to the present invention as described above, by supplying a plurality of darts seated on the dart loading stand to be mounted separately to the clamp of the dart machine by the front and rear and the lifting operation of the cylinder, depending on the manpower of the operator as in the prior art It can protect workers from the disaster risk of large safety accidents, reduce the work load of workers, and reduce the work manpower required for the installation and input of darts during the converter operation process.

In addition, the effect of optimizing the operation of the dart machine injecting the dart to prevent the discharge of slag at the end of the tapping can be produced an excellent quality molten steel.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the claims below. I would like to clarify that knowledge is easy to know.

Claims (4)

In the device for supplying the dart (3) to be mounted to the clamp 131 of the dart machine 100 for introducing the dart 3 into the converter 200, A base 10 provided on the bottom surface of the dart machine 100; A lower cylinder (15) mounted to an upper surface of the base (10) so that the rod end is connected to a vertical stand (21) reciprocally assembled to the guider (12) of the base (10); A lifting cylinder 20 which is disposed perpendicular to the internal space of the vertical stand 21 and moves up and down the upper beam 25 mounted at the rod end; The upper beam 25 is assembled in the upper beam 25 so as to be movable forward and backward, and the rod end is connected to an operation arm 35 having a latching jaw 36 on which the dart 3 is mounted at the front end thereof. An upper cylinder 30 arranged horizontally within And a sensor unit (40) for detecting the vertical movement distance of the vertical beam (21), the operating arm (35), and the vertical movement distance of the upper beam (25). The method of claim 1, The guider 12 faces each other in parallel with the direction in which the reciprocating member 130 of the dart machine 100 moves forward and backward, and has a 'c' cross-section in which the moving wheel 22 of the vertical stand 21 is disposed. The converter dart supply device, characterized in that composed of a guide member. The method of claim 1, The upper beam 25 is a dart supply apparatus of the converter, characterized in that arranged in a direction orthogonal to the direction in which the reciprocating member 130 of the dart machine 100 is moved forward and backward. The method of claim 1, The sensor unit 40 is disposed at a predetermined interval on the sensing member 41 mounted to the vertical stand 21 and the corresponding guider 12 so as to sense the left and right positions of the vertical stand 21. It is provided with a plurality of lower sensors (41a) (41b) (41c), the upper end to the vertical sensing bar 42, the upper end is mounted to the upper beam 25, and to detect the lower end of the vertical sensing bar 42 The operation arm 35 is provided with a plurality of lifting sensors 42a, 42b, 42c which are arranged at a predetermined interval on the outer surface of the vertical stand 21 and detect the vertical position of the upper beam 25. A horizontal sensing bar 43 at which a tip is mounted at the front end, and an outer surface of the upper beam 25 so as to detect the front end of the horizontal sensing bar 43 at a predetermined interval, and is moved forward and backward of the operating arm 35. The dart supply apparatus of the converter, characterized in that composed of a plurality of upper sensors (43a) (43b) (43c) (43d) (43e) for detecting the position.

Images