JPH09176710A - Device for supporting rod of boring machine for iron tapping hole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach/detach a rod to/from a boring machine for an iron tapping hole of a blast furnace with remote operation. SOLUTION: A supporting member 44 provided with a shallow recessed part for laying the rod 50 is made rotatable by a cylinder 46, so that the rod 50 can be dropped and the supporting member 44 can be traveled along a guide channel 20. On the other hand, a central riser for openly/closably grasping the rod is provided near the tip part of the guide channel 20. The attachment/ detachment of the rod is executed by remotely operating these mechanisms.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod supporting device for a tap hole opening machine of a blast furnace. More specifically, the present invention relates to a new rod that opens a taphole and a device that enables remote operation attachment / detachment of a used rod.

[0002]

2. Description of the Related Art An intermediate supporting device for supporting a rod of a conventional taphole punching machine of a blast furnace is disclosed in Japanese Utility Model Laid-Open No. 58-56852 in a guide channel of a taphole punching machine. Some can run along. The rod receiving groove is a fixed hook, and when the rod is bent into the tap hole and pre-opened to retract the hole opening machine, when the rod bends, the rod ear catches on the fixing hook and the hole opening machine's It became difficult to evacuate, and it was necessary to manually remove the rod, which sometimes involved very difficult work.

On the other hand, Japanese Utility Model Laid-Open No. 58-56059 discloses a centering device having a rod gripping claw,
Although an apparatus provided with a swingably supported main body and a rod gripping claw is disclosed, it is fixed at one position of the guide channel and cannot travel. Such a device is also disclosed in Japanese Patent Application Laid-Open No. 57-164902. Because these devices are fixed in position on the guide channel, they cannot support the rod in place and drop it in place.

A centering device for centering the rod for engaging the aperture rod with the aperture machine drifter is disclosed in Japanese Utility Model Laid-Open No. 58-27341. Such a centering device is for inserting the rod into the socket of the perforator and functions in the immediate vicinity of the perforator.

[0005]

SUMMARY OF THE INVENTION The present invention has been developed to realize a new rod for a taphole opening machine of a blast furnace and a device which enables remote operation detachment of a used rod. An object of the present invention is to provide a rod supporting device for a hole punching machine. The objects of the present invention are as follows.

(A) The conventional intermediate device for supporting a movable rod requires human power to remove the rod and cannot be remotely operated. Improve this. (B) Since the conventional intermediate support device for rod centering having a gripping claw cannot run, it is difficult to properly select the drop position when dropping a used rod. A remote operation is achieved by facilitating this.

(C) A gripping device for positioning a rod to be introduced into the blast furnace is provided at the tip portion of the guide channel, and the rod is attached and detached by a remote operation by cooperating with the intermediate supporting device. To do. (D) Further, in addition to handling a new rod, it is possible to cope with bending of the rod that occurs due to the opening.

[0008]

The present invention is characterized by taking the following technical means in order to solve the above-mentioned problems in the rod supporting device of the tapping machine of the blast furnace. That is, the present invention provides a support member having a shallow recess for mounting a support rod, a rotating device for rotating the support member in a posture of supporting or dropping the rod mounted in the recess, and tapping the support member. A rod supporting device for a tap hole punching machine, comprising: a traveling device suspended so as to be able to travel along a guide channel of the tapping machine.

The rod supporting device of the taphole opening machine further includes a centralizer near the tip of the guide channel for opening and closing the rod in conformity with the taphole opening axis. It is preferable to provide a remote control attachment / detachment device for the rod.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A taphole opening machine for a blast furnace receives a rod from a rod feeding device at a retracted position, turns and moves to a position facing the taphole of the blast furnace, and the rod is tapped at the taphole. Type in and let the pig iron out. This rod softens and bends under the heat of the hot metal, so it is dropped into the hot metal gutter and recovered as bare metal. The present invention is a technique developed to allow the step of appropriately supporting this rod and dropping it to an appropriate position to be performed by remote control.

According to the present invention, a support member on which a support rod is placed is formed so as to be rotatable, the rod placed on the support member is easily dropped, and the rod can be run along a guide channel. . Further, by providing a centralizer near the tip of the guide channel so as to match the rod with the tap hole opening axis and gripping it, and an operating device for detaching and attaching the rod by remote control, it becomes possible to perform remote operation.

Embodiments of the present invention will be described in detail below with reference to the drawings. Fig. 15 shows a taphole opener 1 on standby
FIG. 3 is a top view showing that a is turned to the center line 2 of the tap hole 104 of the blast furnace 100 as shown by an arrow 3 and the tap hole opening machine 1 is set at a position facing the tap hole 104. . The stand-by boring machine 1a receives a rod from a rod receiving device (not shown) and holds the rod below the guide channel 20 as illustrated in FIG. This rod 5
0 is attached to the mounting head 12 of the hole drilling machine 10,
The tip side is supported by the rod supporting device 40 (intermediate hanger). The boring machine 10 is equipped with a reverse striking machine 11 and is equipped with a rod 50.
Is driven in to open the taphole of the blast furnace. In order to match the center line 2 of the tap hole of the blast furnace with the center line of the hole punching machine 1, a deck 101 is provided on the blast furnace side, and a hacker receiver 102 is hung to suspend the tip of the guide channel of the tapping hole punching machine 1. It is provided with a hacker (a hook-shaped metal object) 103 for locking.

FIG. 1 shows a rod supporting device 40 of the taphole opening machine of the present invention. Rod support device 40 for taphole opening machine
The frame 41 suspended from the guide channel 20 via the rollers 42 travels freely in the longitudinal direction of the guide channel 20. The hanging bracket 43 and the cylinder mounting bracket 47 are attached to the frame 41, and the hanging bracket 4
A support main body 44 for mounting and supporting the rod 50 on 3 is rotatably pin-connected. An operation rod of a rotation cylinder 46 is connected to one end of a support body 44 with a pin 45. The support body 44 rotates in accordance with the vertical movement of the cylinder 46, and rotates to a position where the rod 50 is discharged and dropped like the support body 48 shown by the phantom line.

FIG. 2 shows a front view of the centralizer 60. A frame 61 is suspended from the guide channel 20 via rollers 62. The cylinder 63 attached to the frame 61 includes left and right arms 67 and 68 having centering claws.
Is linked through links 65 and 66 so as to be openable and closable. When the plunger 64 of the cylinder 46 is moved up and down, the links 65 and 66 are cranked, and the arm 67 connected to the links 65 and 66. , 68 is opened and closed. Arms 67a and 68a shown by phantom lines show the state in which the arms are opened, and arms 67 and 68 shown by solid lines are in contact with their tips to form a rod grip portion 69, and hold the rod 50 here.

In the present invention, the cooperative operation of the centralizer 60 and the rod support device 40 allows the rod 50 to be removed by a remote function. The work contents are as follows. As shown in FIG. 15, first, the rod 50 for hole opening is attached to the hole opening machine 1 at the standby position, and the hole opening machine 1 is rotated forward to perform hole alignment toward the tap hole 104 of the blast furnace 100. , Dig the mud that is blocking the taphole 104.
Then, the hole-forming rod 50 is extracted, detached from the hole-drilling machine 10, and the hole-forming rod is separated. Next, the hole making machine 1 is rotated in the reverse direction, a hole forming gold rod is attached, and the hole forming is started again to penetrate the inside of the furnace.

In this excavation operation, there are cases where a rod for opening a hole and a gold rod are used as described above, or where a drill, a rod for opening a hole and a gold rod are separately used. In addition, the pre-drilling method is also used in the drilling work, in which the rod for drilling is driven in advance before the mud is solidified and the drilling is started from that state (Jitsuko Sho 57-45241).
No. gazette) or solidified mud, drill rod for drilling,
There is a normal opening method or the like which is performed while switching to a gold rod, but either method may be used. Here, the pre-opening will be described as an example.

The working process will be described in detail with reference to FIGS. First, as shown in FIG. 3, immediately after filling the mud, the rod 50 for hole opening is automatically set on the hole drilling machine 10 of the tap hole opening machine 1, and then the tap hole opening machine 1 is turned to rotate the blast furnace 1.
No. 00 is located in front of the tap hole 104, and then the boring machine 10 is advanced along the guide channel 20 to start boring work, as shown in FIG. Next, as shown in FIG. 5, the drilling rod 50 (which may be a gold rod) is made to reach the inside of the furnace, and the drilling machine 10 is evacuated while being left at the tap hole 104.

When it is necessary to open the tap hole 104, the boring machine 10 is moved forward again, and as shown in FIG. 6, the remaining boring rod 50 is grasped and pulled out. FIG.
When the rod 50 is pulled out, the hot metal 11 in the blast furnace 100
0 indicates a state (a tapped state) which is jetted from the opened outlet port 104. If tapping does not start, excavation may be performed again. In any case, opening rod 50
Is subjected to a very high heat load and the tip portion is in a high temperature state, and the extracted hole-forming rod 50 is easily bent, and the tip portion hangs as shown in FIG. 7, or is bent as a whole by excavation again. Occur. Although there are various conventional automatic attachment / detachment techniques for a new rod without bending, the bent opening rod 50
Since it cannot be automatically attached and detached, the operator had to manually remove it.

Even in a normal hole, since tapping occurs at the same time as the hole is opened, melting and bending of the rod 50 occur due to contact with the hot metal and heat load. Further, if the tapped state of the opened hole is poor, the opening rod 50 may be inserted again for cleaning the hole, causing melting and bending. FIG. 8 is a view of the same state as FIG. 7, but shows that when the rod 50 is pulled out and the rod 50 is pulled out, the portion subjected to the high temperature load is easily deformed or melted by the tapping. .
Therefore, this deformed or partially melted hole forming rod 5
The handling (removal) of 0 could not be automated and had to rely on manual operation. FIG. 8 shows a state in which the hole-forming rod 50 hangs down by its own weight in the direction indicated by the arrow 52 and bends.

As shown in FIGS. 9 to 13, in the present invention, when the rod 50 for opening has a deformation such as bending, the rod for opening is handled as follows. (A) The tip of the guide channel 20 of the tap hole opening machine 1 is removed from the hacker 103 so that the tap hole opening machine 1 can be retracted from the tap hole 104 (see FIG. 9). (B) As shown in FIG. 10, the swivel motion of moving the channel support bracket 30 is used to make the taphole opening machine 1.
Is swung and retracted from the tap hole 104.

(C) As shown in FIG. 11, the chain feed motor is driven to temporarily send the hole-forming rod 50 forward. (D) The reason why the opening rod 50 is sent forward in the step (c) is that the portion of the opening rod 50 on the cotter side is not subjected to heat load and is not deformed. This is because the portion is fed to the centralizer 60 portion of the taphole opening machine 1 and held by the centralizer 60.

(E) Centralizer 6 of taphole 1
In order to protect 0, the rod is kept in the air in the state as shown in FIGS. 10 and 11 to stop the tap hole punching machine, wait for the temperature of the rod 50 for punching to drop, and then the operation of FIG. May be performed. (F) After the hole-forming rod 50 is held by the centralizer 60 and the rod support device 40 (intermediate hanger), the hole-drilling machine 10
Is driven to retreat, and the engagement between the cotter and the opening rod 50 is released. At this time, the opening rod 50 is in the state shown in FIG.

The rod 50 for hole opening held in the state of the above step (e) is conveyed to the upper part of the tap hole by utilizing the turning operation of the tap hole opening machine 1, and the holding is released, as shown in FIG. Arrow 5
As shown in 3, drop and discard in tapping gutter. The hole-opening rod that has dropped into the taphole is melted by the hot metal and recovered as a resource.

[0024]

Since the rod supporting device of the taphole opening machine of the present invention is constructed as described above, automation by a remote operation can be achieved.

[Brief description of the drawings]

FIG. 1 is a front view showing a rod supporting device of a taphole opening machine of an embodiment.

FIG. 2 is a front view of a centralizer of the taphole opening machine of the embodiment.

FIG. 3 is an explanatory diagram of a process of using the example.

FIG. 4 is an explanatory diagram of a process of using the example.

FIG. 5 is an explanatory diagram of a process of using the example.

FIG. 6 is an explanatory diagram of a process of using the example.

FIG. 7 is an explanatory diagram of a process of using the example.

FIG. 8 is an explanatory diagram of a process of using the example.

FIG. 9 is an explanatory diagram of a process of using the example.

FIG. 10 is an explanatory diagram of a process of using the example.

FIG. 11 is an explanatory diagram of a process of using the example.

FIG. 12 is an explanatory diagram of a process of using the example.

FIG. 13 is an explanatory diagram of a process of using the example.

FIG. 14 is a side view of the entire taphole opening machine to which the embodiment is mounted.

FIG. 15 is an overall top view of the taphole opening machine according to the embodiment.

[Explanation of symbols]

1, 1a Drilling machine 2 Center line 10 Drilling machine 11 Reverse hammering machine 20 Guide channel 30 Channel support bracket 40 Rod support device 41 Frame 42 Roller 43 Suspension bracket 44 Support body 45 pin 46 Cylinder 47 Bracket 48 Support body 50 Rod 51, 52, 53 Arrow 60 Centralizer 61 Frame 62 Roller 63 Cylinder 64 Plunger 65, 66 Link 67, 67a, 6
8, 68a Arm 69 Rod grip 100 Blast furnace 101 Deck 102 Hacker receiver 103 Hacker 104 Tap tap 110 Hot metal

Claims (2)

[Claims] 1. A support member having a shallow recess for mounting a support rod, a rotating device for rotating the support member in a posture of supporting or dropping the rod mounted in the recess, and opening the tap hole for the support member. A rod supporting device for a tap hole punching machine, comprising: a traveling device suspended so as to be able to travel along a guide channel of the boring machine. 2. A centralizer for gripping the rod in the vicinity of the tip of the guide channel so as to match the rod opening opening axis, and an operating device for remotely attaching and detaching the rod. Item 2. A rod supporting device for a taphole opening machine according to Item 1.