JP2002243373A - Base metal removing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable ore adhered to a lid of a refining vessel to be easily removed by splash without producing any dangerous condition. SOLUTION: A table lifter 107 is rotatably arranged in a horizontal plane on a boggie 100. An arm 123 is arranged at one side edge of a top plate of the table lifter in such a way that it can be raised or inclined under an operation of a hydraulic cylinder 124, and at the same time the extremity end of the arm is provided with a vibration bit 133 which can be raised or inclined under an operation of a hydraulic cylinder 128.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing splash metal adhered to a smelting vessel lid.

[0002]

2. Description of the Related Art FIG. 1 shows an apparatus for decarburizing and refining stainless steel under reduced pressure. In the figure, 1 is a smelting vessel having a refractory material 2 stretched on the inner surface, 3 is an outer lid which is hermetically covered so as to surround an upper portion of the vessel 1, and 4 is supported in the center of the outer lid. It is a refractory inner lid. A through-hole 5 is formed in the inner lid 4, and the through-hole 5 is supported at the center in the outer lid so as to face the upper end opening 6 of the refining vessel 1. Reference numeral 7 denotes an alloy hopper provided to hold ferrosilicon as a reducing material on the outer lid 3. Ferrosilicon is refined through the through-hole 5 by opening a butterfly valve provided at the bottom of the alloy hopper. It is put into the container 1. Reference numeral 8 denotes a molten metal material held in the smelting vessel 1, and oxygen gas,
Argon gas, nitrogen gas, etc. are blown. In addition, 10
Denotes a vacuum pump provided for reducing the pressure inside the outer lid 3.

In this decarburizing and refining apparatus, when a gas is blown into a metal material under reduced pressure, splashes are actively scattered, and the splash adheres to the lower surface of the inner lid 4 and solidifies. For this reason, the solidified metal 13 may block the through-hole 5, so that it is necessary to periodically remove the splash metal.

Conventionally, in order to remove the splash metal on the lower surface of the inner lid 4, as shown in FIG. 2, the inner lid 4 integrated with the outer lid 3 is supported in the air, The hook 12 was pulled off by hooking it on the end of the metal 13 and pulling it. However, this work always involves a danger of falling metal and is a heavy labor in a harsh environment that must be performed even when the outer lid 3 is still in a high temperature state, and thus improvement has been desired.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a bullion removing apparatus which can easily remove bullion attached to a smelting vessel lid by splash without danger. is there.

[0006]

In order to achieve the above object, a bullion removing apparatus according to the present invention has a table lifter rotatably provided on a carriage in a horizontal plane, and a hydraulic cylinder is provided on one side edge of a top plate of the table lifter. The arm is provided so as to be capable of standing up and tilting, and a vibration bit is further provided at the tip of the arm so as to be able to stand up and tilt by operating a fluid pressure cylinder.

[0007]

Next, an embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. In the figure, reference numeral 100 denotes a bogie provided with four wheels 101 and capable of running on rails 102 with the power of a motor 103. A turntable 104 is provided on the carriage so as to be rotatable in a horizontal plane by a roller bearing 105, and the turntable 104 is set to rotate and stop at an arbitrary rotational position by the power of a motor 106. . Reference numeral 107 denotes a table lifter provided on the turntable 104. The table lifter is configured such that a top plate 108 is supported by a pair of X legs 109 so as to be able to move up and down, and the height of the top plate 108 can be arbitrarily set by operating a fluid pressure cylinder 110. Reference numeral 111 denotes a rail clamp provided at four corners of the trolley 100 in an expanded manner, and the trolley is immovably stopped by operating the rail clamp.

As shown in FIG. 5, a notch 120 is formed at one side edge of the top plate 108, and a support shaft 121 is supported by a bearing piece 122 so as to face the notch. A rod 123 of a hydraulic cylinder 124 is connected to the base end of the arm by a pin 126, and the arm 123 is turned inward by the operation of the hydraulic cylinder as indicated by a broken line in FIG. It can be raised and tilted with an angle range of about 30 degrees and about 15 degrees outward.

Also, as shown in FIG.
Also, the link plate 127 is rotatably supported, and the rod 129 of the fluid pressure cylinder 128 is connected with the pin 130,
The link plate 127 is rotated by the operation of the fluid pressure cylinder, and a pin 131 is attached to the other end of the link plate 127.
The air breaker 132 is connected via the.

Reference numeral 133 denotes a support shaft 134 at the tip of the arm 123.
The vibrating bit is supported so that the sharp distal end 136 faces inward, and a pin 13 is attached to the base end of the vibrating bit.
The tip of the air breaker 132 is connected through a wire 5. For this reason, by operating the fluid pressure cylinder 128 and rotating the link plate 127, the vibration bit 133 rises and tilts at the tip of the arm 123, and the direction of the vibration bit is supported as shown by the broken line in FIG. The shaft 134 is used as a fulcrum so that it can be adjusted up and down in an angle range of about 80 degrees.

In the thus-constructed splash metal removing apparatus, the inner lid 4 integral with the outer lid 3 is suspended in the air as shown by a broken line in FIG. 10
0, the carriage is stopped by the rail clamp 111, the top plate 108 is raised, the vibration bit 133 is advanced between the outer lid 3 and the inner lid 4, and the arm 123 is moved as necessary. The tip 13 of the vibrating bit 133 is tilted appropriately and the metal 13 attached to the lower surface of the inner lid 4.
Into the edge of the. Then, the air breaker 132 is operated to vibrate the vibration bit 133 with the support shaft 134 as a fulcrum. Thereby, the base metal 13 can be easily separated from the lower surface of the inner lid 4. Turntable 10
4 is rotated so that the vibrating bit 133
The arm 123 can be moved to an arbitrary place around the arm.
If the location where the vibrating bit bites is properly set by inclining, the metal can be reliably peeled off by making it bite into several places even if it is difficult to peel it off at only one location.

Since the direction of the vibration bit 133 can be adjusted by operating the fluid pressure cylinder 128, the vibration bit is set upward as shown by the broken line in FIG. Can be attached to the inner surface of the through-hole and the base metal can also be released. The metal dropped from the inner lid 4 in this manner is
8 and can be collected.

[0013]

As described above, in the splash metal removing apparatus according to the present invention, a table lifter is rotatably provided on a bogie in a horizontal plane, and one side edge of the top plate of the table lifter is operated by a fluid pressure cylinder. Since an arm is provided so as to be able to stand and tilt, and a vibration bit is provided at the tip of the arm so as to be able to stand and tilt by the operation of a hydraulic cylinder,
The vibrating bit can be accurately opposed to the lower surface of the refining vessel lid, and the splash metal can be reliably peeled off and removed. Further, there is a beneficial effect that the worker can safely work by remote control without the need for the worker to enter the lid in the high temperature state, and the labor of the worker is greatly reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view schematically showing a decarburization refining device.

FIG. 2 is a schematic diagram of a conventional splash metal removal operation.

FIG. 3 is a front view showing an embodiment of a slab removing device according to the present invention.

FIG. 4 is a left side view of the bullion removing apparatus of FIG. 3;

FIG. 5 is a front view of a main part showing an operation state of the bullion removing device according to the present invention.

FIG. 6 is a front view of a main part showing an operating state of the bullion removing apparatus according to the present invention.

[Explanation of symbols]

 100 cart 104 turntable 107 table lifter 108 top plate 121 support shaft 123 arm 124 fluid pressure cylinder 127 link plate 128 fluid pressure cylinder 132 air breaker 133 vibration bit

Claims (1)

[Claims] 1. A table lifter is provided on a carriage so as to be rotatable in a horizontal plane, and an arm is provided at one side edge of a top plate of the table lifter so as to be able to stand up and tilt by operation of a fluid pressure cylinder. An apparatus for removing splash metal adhered to a lid of a smelting vessel, further comprising a vibrating bit that can be raised and tilted by operation of a fluid pressure cylinder.