JP2512342B2 - Brick laying device for bottom of converter - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a brick stacking device used for stacking bricks on the bottom of a converter used in an iron mill.

[Conventional technology]

Conventionally, as a brick stacking device for stacking bricks on the bottom in the converter, as disclosed in JP-A-1-191733, on the top of the bottom central brick block fixed to the bottom center in the converter, A central part of the swivel frame extending in the diameter direction of the converter is rotatably provided through a swivel support device, and telescopic support legs are attached to the lower portions of both ends of the swivel frame, and is vertically moved by a carrier device elevating and lowering drive device. The lower end of the lifting tower accommodating the carrier is located in the upper center of the swivel frame, a brick loading pallet outlet is provided on the lower peripheral wall of the lifting tower, and a delivery conveyor is provided at the bottom of the carrier. A receiving conveyor is provided above the swivel frame, and a swivel crane that swivels around the hoisting tower is provided around the swivel frame. The swivel crane suspends and supports a brick suction tool. Brick product devices are known being.

[Problems to be Solved by the Invention]

In the case of the conventional brick bottom stacking apparatus, a pallet loaded with a large number of bricks for the furnace bottom is placed on the delivery conveyor in the carrier and lowered to the lower limit position, and then the pallet is placed on the delivery conveyor from the delivery conveyor. And then hoisting the pallet on a pallet cradle at the bottom of the furnace by a hoist, and then sucking the suction cup of the brick adsorbing tool onto one brick for the bottom of the pallet to adsorb the brick. Since bricks are transported to the brickworking position on the bottom of the furnace, there is a problem that the brickworking operation is complicated, and the structure of the brickworking device is complicated and the manufacturing cost is high.

It is an object of the present invention to provide a brick bottom device for a converter bottom that can advantageously solve the above problems.

[Means for solving the problem]

In order to achieve the above object, in the brick bottom laying apparatus for a converter bottom of the present invention, the bottom central brick block 2 fixed to the center of the bottom of the converter 1 and the lower portion of the peripheral wall of the converter 1 are fixed. A floor frame 4 extending in the radial direction of the converter is erected over the upper part of the lower peripheral bricks 3 stacked along the
The lower part of the support column 5 is rotatably attached to the outer end of the floor frame 4, and the base end part of the telescopic brick receiving arm 6 is pivotally attached to the lower part of the support column 5 by a horizontal shaft 7. A lower end of a carrier tower 11 in which a brick receiving arm elevation drive device 8 is attached and which houses a carrier 10 that is vertically moved by a carrier elevating drive device 9 is arranged above the bottom central brick block 2. The tower 11 is provided with a swing crane 12 that swings around it, and the brick suction tool 13 is suspended and supported by the swing crane 12.

〔Example〕

 The present invention will now be described in detail with reference to the illustrated example.

The drawings show an embodiment of the present invention, in which a support frame 16 mounted over a girder 14 and a floor 15 of a steel mill building is fixed to the middle portion of a vertical transport tower 11 and its support. A carry-in roller conveyor 17 is fixed to an upper part of the frame 16 on the floor 15 side, and the carry device 10 arranged in the carrying tower 11 is a carrying device elevating and lowering device composed of a hoisting machine fixed to an upper end portion of the carrying tower 11. A plurality of guide rails 19 for raising and lowering a carrier are vertically supported on the inner surface of the conveying tower 11 by being vertically supported by a driving device 9 via a wire rope 18 and are spaced apart in the tower circumferential direction. Guide rollers 20 that are fixed in place and that engage with the guide rails 19 are attached to the upper and lower portions of the carrier 10.

Brick outlets 21 are provided on both front and rear sides and left and right sides of a lower end portion of a peripheral wall of the tower 11, and a roller conveyor 23 is rotatably mounted on a lower frame 22 of the carrier 10.

The bottom center brick block 2 is formed by stacking a large number of bricks on the upper surface of the furnace bottom center member 24 in advance, and the furnace bottom center member 24 on which the bottom center brick block 2 is stacked is the center of the bottom of the converter body. The lower peripheral brick 3 is formed by being fitted in the opening and fixed by a bolt 25, and a large number of bricks are previously stacked along the lower portion of the peripheral wall in the converter 1.

The inner ends of the plurality of metal floor frames 4 extending in the radial direction of the converter 1, that is, the end on the converter center side are placed on the upper part of the bottom central brick block 2 via a supporting member, and the floor frame is provided. Two screw-type level adjustment support legs 26 provided at the outer end portion of 4, i.e., the end portion on the peripheral wall side of the converter are placed on the upper part of the lower peripheral brick 3, and a metal floor plate 27 is further provided on the upper surface of the floor frame 4. It is fixed.

A bearing box 28 is fixed to an outer end portion of the floor frame, and a lower portion of the vertical metal column 5 is rotatably supported by bearings provided in an upper portion and a lower portion of the bearing box 28, and a lower portion of the column 5 is supported. The base end of the telescopic brick receiving arm 6 is pivotally attached to the bracket 29 fixed to the side by the horizontal shaft 7,
The telescopic brick receiving arm 6 includes a main arm 30 having an upward opening groove section and a movable arm 33 having an upward opening groove section movably attached to the main arm 30 via a side guide rail 31 and an intermediate guide rail 32. And an expansion / contraction cylinder 34 that is an electric cylinder that connects the main arm 30 and the movable arm 33.

A stopper for preventing bricks from falling off at the tip of the movable arm 33.
35 is attached, and the bracket is attached to the lower side of the column 5.
A pedestal 36 protruding to the side opposite to 29 is fixed, and the pedestal 36 includes an electric winch and a brick receiving arm ascending / descending drive device 8
The wire rope 37, which is fixed from the drive device 8, is wound around a support sheave 38 attached to the upper part of the support column 5, and the end portion of the wire rope 37 has a hanging frame 39.
Of the suspension frame 39 is connected to one end of
Horizontal shaft 41 against support bracket 40 fixed to the side plate of main arm 30
Is pivoted by.

A circular turning handle 42 is fixed to an intermediate portion of the support column 5, a base end portion of a horizontal arm 43 is pivotally attached to a shaft portion of the support leg 26, and a screw type attached to a tip end portion of the horizontal arm 43. The adjustment support leg 44 is placed on the upper portion of the lower peripheral brick 3.

The cylindrical frame 45 surrounding the tower 11 is a crane lifting / lowering drive device including a hoisting machine fixed to the upper end of the tower 11.
A plurality of elevating guide rails 48 extending vertically are fixed to the outer surface of the tower 11 by a wire rope 47 so that the elevating guide rails 48 can be lifted up and down. Guide rollers 49 that engage with the guide rails 48 are provided on the upper and lower portions of the tubular frame 45.
Is installed.

The swiveling annular rail 50 and the annular supporting member 51 located inside the swiveling annular rail 50 are arranged concentrically with the upper part of the tubular frame 45, and support members 52 are attached to the tubular frame 45.
Fixed to the trolley frame 53, and on both sides of both ends of the trolley frame 53, the turning traveling wheel 54 mounted on the lower flange of the turning annular rail 50 and the guide rollers 55 engaging with the side surfaces of the lower flange are attached. A swivel trolley 56 is formed.Furthermore, a proximal end portion of a hollow horizontal member 57 extending in the radial direction of the tubular frame is fixed to the lower middle portion of the trolley frame 53, and a horizontal support member 58 is attached to the hollow horizontal member 57. The hollow horizontal member 57 and the horizontal support member 58 are slidably fitted.
The expansion and contraction support member 59 is constituted by and.

A bearing roller 60 that is brought into contact with the lower surface of the annular bearing member 51 is attached to the base end portion of the hollow horizontal member 57, a hanging metal fitting 61 is attached to the tip end portion of the horizontal support member 58, and the hollow horizontal member Plural hanging metal fittings 62, 63 at the bottom of the member 57
And a hoist 64 with a manual chain block
Is hung on the hanging metal fitting 63 in a detachable manner. At one end of the trolley frame 53, a chain wheel 65 and a drive pinion 66 are provided.
Is attached to the chain wheel 65, the upper portion of an endless chain 67 for manual rotation is wound around the chain wheel 65, and the drive pinion 66 is a driven gear concentrically and integrally provided with the turning traveling wheel 54. 68 meshed with the endless chain 67
When the chain wheel 65 is rotated by pulling by hand, the rotation is transmitted to the turning traveling wheel 54 via the drive pinion 66 and the driven gear 68, and the trolley frame 53 turns around.

A turning crane 12 is constituted by a turning trolley 56 that turns along the turning annular rail 50, and a hoisting machine 64 supported by a telescopic support member 59 attached to the turning trolley 56. A plurality of cranes 12 are provided around the turning circular rail 50. Further, the brick suction tool 13 is hung on the hanging metal fitting 61 or the hanging metal fitting 62 of the elastic support member 59 through the hanging rope 70 with the hanging hook 69. 19
Since a structure similar to that described in Japanese Patent No. 1733 can be used, description of the structure will be omitted.

When performing brick-laying on the bottom of the converter using the brick-laying device of the above-mentioned example, first, a pallet 72 loaded with a large number of bricks 71 for the hearth is placed on the loading roller conveyor 17 by a forklift 73, and then The pallet 72 is carried by the carrying-in roller conveyor 17 to the roller conveyor 23 in the carrying device 10.
Then, the carry device 10 is lowered to a predetermined position.

Next, as shown in FIG. 2, the telescopic brick receiving arm 6
Is extended toward the uppermost brick 71 on the pallet 72, and is inclined obliquely upward so that the tip side is at a high level, and then an operator moves one brick 71 from the pallet 72 to the brick receiving arm 6. After the transfer, the worker grips the turning handle 42 and turns the pillar 5, the brick receiving arm 6, and the like.

Next, after rotating the brick receiving arm 6 on which the brick 71 is placed downward, the suction cup 74 of the brick suction tool 13 is suctioned to the brick 71 on the brick receiving arm 6, and the brick is held in the brick suction tool 13 It is adsorbed and supported by and transported to the brick bottom position of the furnace bottom. After transporting one brick from the pallet in this way, the brick receiving arm 6 is lifted and rotated, and then horizontally swiveled toward the brick on the upper stage of the pallet to remove the brick on the pallet as described above. Carry one by one toward the bottom of the furnace.

Also, after the conveyance of the topmost bricks on the pallet 72 is completed, the carrier 10 is raised by the thickness of one brick, and then the topmost bricks on the pallet are placed in the furnace one by one again as described above. Transport towards the bottom. Furthermore, when the brick position of the bottom portion in the converter is largely changed in the peripheral direction of the converter, the floor frame 4 and each part supported thereby are moved in the peripheral direction of the converter.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects.

Compared to the conventional converter bottom brick laying apparatus, bricks 71 placed in the lower part of the carrying tower 11 can be quickly carried toward the furnace bottom one by one by a simple carrying operation, In addition, the brick laying device has a simple structure and can be manufactured at low cost.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a vertical sectional side view showing a state where bricks are piled at the bottom of a converter using the brick laying apparatus of the present invention, and FIG. FIG. 1 is an enlarged vertical side view showing a part of FIG. 1, FIG. 3 is a side view of a brick receiving and transferring device, FIG. 4 is a plan view thereof, and FIG. 5 is a suspension supporting state of a telescopic brick receiving arm. 6 is a partially cutaway front view showing a supporting state of an outer end portion of a floor frame, FIG. 7 is a cross-sectional plan view showing a lifting guide portion of a carrying device and a lifting guide portion of a swing crane, FIG. FIG. 9 is a partially longitudinal side view showing the vicinity of a swing crane, FIG. 9 is a partially cutaway front view thereof, and FIG. 10 is a side view showing a brick suction tool suspended from the swing crane. In the figure, 1 is a converter, 2 is a bottom central brick block, 3
Is a lower peripheral brick, 4 is a floor frame, 5 is a pillar, 6 is a telescopic brick receiving arm, 7 is a horizontal axis, 8 is a brick receiving arm lifting / lowering drive device, 9 is a carrier lifting / lowering drive device, 10 is a carrier, 11 Is a transport tower, 12 is a swing crane, 13 is a brick suction tool, and 23 is
Is a roller conveyor, 26 is a supporting leg for level adjustment, 28 is a bearing box, 30 is a main arm, 31 is a side guide rail, 32 is an intermediate guide rail, 33 is a movable arm, 34 is a telescopic cylinder, and 35 is a brick fall prevention. Stopper for 37, wire rope,
38 is a support sheave, 42 is a swivel handle, 43 is a horizontal arm, 44 is a screw type adjustable support leg, 45 is a tubular frame, 46 is a crane lifting drive device, 47 is a wire rope, 48 is a lifting guide rail, 49 Is a guide roller, 50 is an annular rail for swiveling, 51 is an annular supporting member, 53 is a trolley frame, 56 is a swiveling trolley, 59 is a telescopic support member, 64 is a hoisting machine, 71 is a brick for the hearth bottom, 72 is a pallet, 74 is a sucker.

Front Page Continuation (72) Inventor Toshiaki Yamagata, 3rd Oita, Kashima-cho, Kashima-gun, Ibaraki Sumitomo Metal Industries, Ltd. Kashima Steel Works (72) Toshiharu Yoshida, 3rd Hikari, Kashima-cho, Kashima-gun, Ibaraki Sumitomo Metal Industries Ltd. Company Kashima Steel Works (72) Inventor Nobuyoshi Hiroki No. 3 Hikari, Kashima-machi, Kashima-gun, Ibaraki Prefecture Sumitomo Metal Industries, Ltd. Kashima Works Co., Ltd. (72) No. 3 Hikari, Kojima-machi, Kashima-gun, Ibaraki Prefecture Shinagawa White brick Kashima Sales Department Co., Ltd. (72) Inventor Kazuki Makino, 3rd light, Oshima, Kashima-cho, Kashima-gun, Ibaraki Shinagawa White Brick Co., Ltd. Kashima Sales Department (72) Hideto Watanabe, 3rd light, Kashima-cho, Kashima-gun, Ibaraki Shinagawa Furnace Kashima Plant Co., Ltd. (72) Inventor Toyohisa Mizunochi 5-48 Kamata, Ota-ku, Tokyo Shinagawa Furnace Co., Ltd.

Claims (1)

(57) [Claims] 1. A converter over an upper part of a bottom central brick block 2 fixed to the center of the bottom in a converter 1 and an upper part of a lower peripheral brick 3 stacked along a lower part of a peripheral wall in the converter 1. A floor frame 4 extending in the radial direction is erected, and a lower portion of a column 5 is rotatably attached to an outer end portion of the floor frame 4, and a base end portion of a telescopic brick receiving arm 6 is attached to a lower portion of the column 5. A carrier tower that is pivotally mounted by a horizontal shaft 7, a brick receiving arm elevation drive device 8 is attached to the pillar 5, and a carrier 10 that is moved up and down by a carrier device elevating drive device 9 is housed.
The lower end of 11 is arranged above the bottom central brick block 2, and a swiveling crane 12 that swivels around the tower is provided in the transport tower 11. The swiveling crane 12 suspends and supports a brick suction tool 13. Brick laying device for the bottom of converter.