JPH0639947U - Residual pig iron hole opening blocker - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a residual iron vent hole closing device for use in a tap pipe and a mixed pig separation tank of a blast furnace. [Structure] A plurality of hole-drilling drills and a plurality of closing mud filling cylinders are attached to a rotary-type opening obturator holder, which is integrally attached to and removed from a residual tapping hole opening and closing device. And a rotary type hole obturator holder connected to a rotary drive unit by a clutch so that an arbitrary hole obturator can be selectively used.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a residual iron vent hole closing device for use in a tap pipe and a mixed pig iron separation tank of a blast furnace.

[0002]

[Prior art]

 As disclosed in Japanese Utility Model Laid-Open No. 59-33749, as an apparatus for safely and efficiently opening and closing a residual iron hole in a tap iron gutter of a blast furnace or a mixed hot metal separation tank, an opening having a drill is disclosed. An opening and closing device are known in which closing devices equipped with a hole device and a mud gun are arranged side by side in the machine frame so that they can be moved laterally in parallel, and when opening and closing, each device is directly aligned with the residual tapping hole. . Furthermore, as disclosed in Japanese Utility Model Laid-Open No. 1-94445, a boring drill guide and a mud filling cylinder are laterally moved by a winch to directly face a residual iron hole, and a boring drill and a mud press from the rear. Air rods that can be attached to any of the rods are used for the work, and a hoisting device that can move freely between the working position and the standby position is provided.The equipment cost is low, the operation is easy, and the maintenance cost is low. Improved residual iron vent hole closure devices are known.

[0003]

[Problems to be solved by the device]

 According to the present invention, a conventional residual iron vent hole closing device (hereinafter, simply referred to as a hole closing device) can be equipped with only one drilling drill for opening and one mud filling cylinder for closing. In consideration of the need to manually replace the drill for drilling, the mud filling cylinder, and the mud pressing rod during one operation or after each operation, it is possible to reduce the number of workers and to perform safer work. Another object of the present invention is to provide an open hole closing device that enables remote operation.

[0004]

[Means for Solving the Problems]

 The present invention is a hole closing device for solving the above-mentioned problems and achieving an object, wherein a plurality of hole forming drills and a plurality of closing mud filling cylinders are used for rotary type opening closing. It is attached to the tool holder, and it can be attached and removed integrally with the residual iron vent hole closing device, and the rotary type hole closing tool holder is connected to the rotary drive unit with a clutch to open the desired opening. It is a device for closing a residual iron hole opening hole, which is characterized in that an obturator can be selectively used.

[0005]

[Action]

 In the conventional device, the boring drill and the mud filling cylinder are consumable items, and it is necessary to manually replace each time the device is used. However, a plurality of the boring and closing devices according to the present invention are prepared. In addition, it is possible to select the opener blocker by the drive motor, and it is possible to promptly respond to redoing during opening or closing work. Further, since the rotary type hole closing device holder is integrally replaced, it may be replaced once every several times of the residual iron removal work, which leads to a reduction in the work time. Furthermore, these operations can be performed from a distance by remotely monitoring them with a TV. Therefore, it is possible to reduce the number of workers and realize safe work.

[0006]

【Example】

 The details of the aperture closing device according to the present invention will be described with reference to FIGS. In FIG. 1, a residual hot metal draining hole 2 is provided at an end of a hot metal gutter 1, and a residual hot metal flow gutter 3 through which the residual hot metal flowing out from the residual hot metal draining hole 2 flows. 1 and 2 are a side view and a plan view, respectively, showing a state in which the open hole closing device of the present invention is installed at the time of performing work. As shown in FIG. 2, the guide channel 4 is supported and fixed by struts 5a and 5b straddling the residual iron flow gutter 3. A chain feed motor 6 is mounted on the guide channel 4, and a chain 61 is driven by the chain feed motor 6, so that a traveling base 8 on which a drifter 7 is installed and fixed can be moved in a direction directly facing the residual tapping hole 2. .

A range A surrounded by a broken line in FIG. 1 is a rotary aperture obturator holder (hereinafter simply referred to as a rotary holder), and the rotary holder A has a rotary holder front view as shown in FIG. The drilling drill 9, the mud filling cylinder 10 and the mud pressing rod 11 (Fig. 1) are arranged and supported in the circumferential direction of the three holder guides 12, respectively, and the rear ends are respectively supported and fixed by the rod guides 13 (Fig. 1). ing. 9a of the drill hole drill 9 is located at a position directly facing the residual iron hole 2. As shown in FIG. 1, the holder guide 12 and the rod guide 13 are respectively connected to a holder rotating shaft 14, and a clutch 15 is provided at the rear end of the rotating shaft 14, and the rotating shaft 14 is supported by the guide channel 4 from the support base 16 a, It is supported by bearings 18a and 18b through attachments 17a and 17b of 16b. The rotary holder A can be rotated by the rotary drive unit 20 through the clutch 15 and the rotary drive shaft 19. The rotation drive unit 20 has a drive motor 21 and a handle 22 for attaching and detaching the clutch 15.

A usage method according to the present invention will be described with reference to FIGS. 4 to 7. FIG. 4 is a side view of the rotary holder. Before the operation of the present apparatus, a rotary holder A provided with three drilling drills 9, mud filling cylinders 10 and mud pressing rods 11 is prepared. At this time, the mud filling cylinder 10 is assembled with the mud filled. FIG. 5 is a side view of the hole closing device, in which the rotary holder A is connected to the hole closing device in this state with the attachments 17a and 17b, and the clutch 15 is engaged with the handle 22 to rotate the rotary drive unit 20. Connect to. It is not necessary to perform the above work in front of the residual iron extraction hole 2 with high heat and much dust, and the work can be performed safely. The state in which this is installed in front of the residual iron hole 2 is shown in FIG. 1 described above.

In the residual iron removal work, an opening work is performed to remove the residual iron, and then a closing work is performed. FIG. 6 and FIG. 7 are a side view and a plan view, respectively, for explaining the residual iron removing work situation. For the drilling operation, one of the drilling drills 9 is rotated by the drive motor 21 to a position directly facing the residual tapping hole 2 and stopped. Then, the chain feed motor 6 advances the traveling frame 8. There is a rod joint 23 at the tip of the drifter 7 on the traveling platform 8, and the rear end of the drilling drill 9 can be connected by rotating the drifter 7. After that, as shown by the chain double-dashed lines in FIGS. 6 and 7, the traveling platform 8 is further advanced, and the remaining drill hole 2 is drilled by the drilling drill 9 by rotating and striking the drifter 7. At this time, the drill 9 is supported by the holder guide 12 and the rod guide 13 which slides the rotary shaft 14. Simultaneously with the opening, the traveling base 8 is retracted, and the drifter 7 is reversely rotated at a predetermined position to separate the rear end of the hole drill 9 and the rod joint 23.

After extracting the residual iron, one of the mud filling cylinders 10 is swung by the drive motor 21 to a position facing the residual iron vent hole 2 and stopped for the closing work. Next, as in the opening operation, after connecting the rod joint portion 23 and the mud pressing rod 11, it is advanced to push the mud in the mud filling cylinder 10 into the residual tapping hole 2 to close it. The conventional technique of Japanese Utility Model Laid-Open No. 1-94445 can be applied to the closing and the pulling back of the mud filling cylinder 10.

As a means for moving the present apparatus in front of the residual iron hole 2, in addition to the case where the rotary holder A is incorporated as in the present embodiment, it is moved by a transfer facility such as an overhead crane. Further, it is possible to use a hoisting device such as an actual Kaihei No. 1-94445 composed of a swivel drive motor and a swivel support arm, or a swivel retractor such as a tap hole opening machine of a blast furnace. Further, although the rotary holder A is installed in the lower part of the guide channel 4 in the present embodiment, it is also possible to install these in reverse so as to correspond to the layout of the on-site equipment.

[0012]

[Effect of device]

 The residual iron vent hole closing device according to the present invention has a great practical effect as compared with the conventional device because it can reduce the number of working personnel, can perform safe work, and can be operated remotely. .

[Brief description of drawings]

FIG. 1 is a side view of a hole closing device according to the present invention.

FIG. 2 is a plan view of a hole closing device according to the present invention.

FIG. 3 is a front view of the rotation holder.

FIG. 4 is a side view of the rotation holder.

FIG. 5 is a side view of the hole closing device.

FIG. 6 is a side view showing a state of work for removing residual iron.

FIG. 7 is a plan view showing the work status of residual iron removal.

[Explanation of Codes] 2 Residual Iron Draining Hole 4 Guide Channel 6 Chain Feed Motor 7 Drifter 9 Drilling Drill 10 Mud Filling Tube 11 Mud Pressing Rod 12 Holder Guide 13 Rod Guide 14 Holder Rotating Shaft 15 Clutch 17a, 17b Attachment 20 Rotary Drive Part 21 Drive motor 22 Handle for clutch attachment / detachment 23 Rod joint part A Rotary type opening obturator holder

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masayoshi Yukoshi Creator Masayoshi Yukoshi 46-59 Nakahara, Tobata-ku, Kitakyushu City, Fukuoka Prefecture, Nippon Steel Plant Design Co., Ltd. Kimitsu Steel Works, Ltd.

Claims (1)

[Scope of utility model registration request] 1. In a device for closing a residual iron hole opening hole, a plurality of hole forming drills and a plurality of closing mud filling cylinders are mounted on a rotary type opening obturator holder and left. It is possible to install and remove it integrally with the tapping hole hole closing device, and connect the rotary type hole closing device holder to the rotary drive unit by the clutch, and it is possible to select and use any hole closing device. An apparatus for closing a residual iron vent hole, which is characterized in that: