JPH089151Y2 - Brick stacking equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brick stacking device for loading bricks from the bottom of a metal refining furnace such as a converter.

[0002]

2. Description of the Related Art First, a conventional brick laying apparatus will be described with reference to the one described in Japanese Patent Publication No. 48-6003 shown in FIG. 5 and the one described in Japanese Patent Publication No. 53-39241 shown in FIG. To do.

In FIG. 5, reference numeral 61 is a converter, and 62 is a traveling frame located directly below a furnace bottom opening 63 of the converter. The guide casing 6 supported by the traveling frame 62.
4, 65, 66 guide the telescopic lifting rods 67, 68, 69, and the telescopic lifting rods 67, 68, 69 raise the work platform 70 to a desired height in the converter 61. . A basket 71 for storing bricks is hung by a tension rope 73 of a jib crane 72 fixed to the work platform 70 and movable between the work platform 70 and the traveling path 74. According to this brick stacking apparatus, the work platform 70 on which a plurality of brick stacking workers are riding is elevated to a predetermined height in the converter 61 by the telescopic lifting rods 67, 68, 69, and then the traveling path 74 is used. The brick for lining in the converter, which has been transported, is carried into the basket 71, and the jib crane 7
The basket 71 is lifted up to the work platform 70 by 2 and the brick stacking worker stacks the bricks in the basket 71 at a predetermined position in the converter 61 for lining.
In FIG. 6 (hereinafter referred to as “prior art I”), 81 is a metallic shell (corresponding to a converter furnace shell), and a hoist 83 is attached to the upper beam 82. The hoist 83 can raise and lower the cylindrical tower 84 and the box 85. A turntable 86 is disposed at the upper end of the tower 84, and the turntable 86 supports a foldable platform 87 on which a brick-laying worker is placed.
According to this brick stacking device, the forklift truck 8
After transferring the bricks transported by 8 to the box 85, the tower 84 and the box 85 are pulled up to a predetermined position in the shell 81 by using the hoist 83, and only the box 85 is moved by the hoist 83 to the rotary table 86. The bricks are lifted up to the position, and the brick stacking worker on the platform 87 piles up the bricks in the box 85 at a predetermined position in the shell 81 for lining. (Hereafter, referred to as "Prior Art II")

[0004]

By the way, it is necessary to provide a predetermined space between the converter and the floor surface for moving the ladle car and the like and for installing the brick stacking device and the like. As a result, the lower surface of the converter is often located 7 to 8 m or more above the floor surface. Further, most of the converters themselves have a furnace height of 10 m or more.

Therefore, when a brick laying worker performs brick laying on a work platform as in the prior arts I and II, there is a safety problem associated with working in high places and the weight of one brick is about 30 kg. However, there is a problem that the work of brick laying by hand takes a very long time and the work efficiency is low.

The present invention has been made in view of the above problems of the prior art. The purpose of the present invention is to improve the safety of work when loading bricks one by one from the bottom of the furnace. The problem is to provide a brick stacking device that does not have the above problem and has high work efficiency.

[0007]

In order to achieve the above object, the brick stacking apparatus of the present invention comprises a tower extending from the upper side of the furnace opening to the lower side of the bottom of the furnace through the inside of the furnace. In addition to providing a vertically attached cabin, a brick intake means is provided at the lower part of the tower to take in bricks cut out one by one and supply the bricks to the next conveying step with the longitudinal direction of the bricks vertically oriented. Brick supplied from the intake means and bricks previously supplied are mutually connected in a state where their longitudinal directions are vertically connected to each other, and push up means for sequentially pushing up by the brick length and holding means for holding the pushed up bricks. Brick advance means consisting of and is provided in the tower.

[0008]

[Operation] After tilting the brick intake means arranged at the lower part of the tower horizontally to take in the bricks into the take-in means, the take-in means is erected in a vertical position, and the taken-in bricks are provided on the tower. Bricks are continuously conveyed upward by being pushed up in a connected state along the tower by brick advancing means such as push-up means (cylinder push-up type or roller type). And when the brick is transported to the predetermined position,
Usually, an operator in the cabin remotely or automatically controls the brick carry-out arm to grip the brick and bring it to a predetermined position to stack the bricks. The brick carry-out arm is horizontally rotated in the inner circumferential direction of the furnace. Then, after stacking a certain number of steps of bricks, the brick carry-out arm is raised along with the cabin along with the cabin, and the bricks of the next step are stacked in the same manner as above.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

The overall construction of the brick stacking apparatus will be described with reference to FIG. As shown, the converter 1 is a trunnion center 2
It is supported so as to be tiltable around the inner wall of the furnace wall 3, and a brick lining (lining) is formed on the inner surface of the furnace wall 3 by the brick laying apparatus M of the present invention as shown by phantom lines.
An installation stand 4 is installed directly above the converter 1, and an upper tower 5 is installed.
Is hung downward from this, and extends vertically from the opened furnace port 1A through the furnace bottom 1B. This upper tower 5
And a cabin 6 that can be moved up and down along the
A brick unloading arm 8 pivotally attached to the lower swivel ring 7 is provided.

On the other hand, a lower tower 10 is erected on the bed of the work carriage 9 just below the furnace bottom 1B, and the lower tower 10 and the upper tower 5 are connected by a flange 11.

The cabin 6 is constructed so that it can be lifted and lowered by an elevating device 12 installed on the installation stand 4 using the upper tower 5 as a guide. Inside the cabin 6, a brick carry-out arm 8 is remotely operated or automatically operated. An operation stand, a control device, or the like for handling the bricks to a predetermined place by controlling the bricks is provided so that a worker can monitor the brick stacking condition from the inside of the cabin.
The brick carry-out arm 8 is a so-called articulated brick-laying robot, and has a suction pad 8a for gripping bricks at its tip. Since the base of the carry-out arm 8 is pivotally attached to the lower part of the vertically movable cabin 6 to a swivel ring 7 that is swivelable around the tower axis, it is mechanically located at a predetermined position in the height direction of the converter 1. Bricks can be stacked on
Bricks can be efficiently piled in the circumferential direction of the converter 1.

A pretreatment device (not shown) for cutting out the converter bricks R for bricks one by one from the brick block is arranged near the work carriage 9, and the brick supply means 13 and the fluid pressure cylinder 14a are associated with the pretreatment device. A tiltable brick intake means 14 is arranged at the base of the lower tower 10 on the work carriage 9. The upper and lower towers 5 and 10 are equipped with built-in brick advancement means L. FIG. 1 illustrates a roller-type brick raising means.

Now, three embodiments of the brick raising means will be described.

FIG. 2 is a conceptual diagram of the cylinder pushing-up type brick advancing means L according to the first embodiment. A brick guide 16 composed of a pair of opposed sandwiching plates 16a and 16b is provided at an upper portion of a push-up cylinder 15 provided at the base of the lower tower at one stroke, and the push cylinder 1 is provided on one side.
7 is attached.

Therefore, in the procedure for feeding the brick R upward, first, one brick R is supplied from the brick intake means 14 (FIG. 1) onto the rod pushing plate 15a of the pushing cylinder 15 (FIG. (A)). ). Cylinder 15 is extended to brick guide 16
The bricks R are pushed up until they enter between them, and the pushing cylinder 17 is extended to push the holding plate 16a on one side against the brick surface to hold the bricks R (Fig. (B)). Next, a new brick R ₁ is supplied from the brick intake means to the push-up cylinder 15 shortened to the original position (FIG. (C)), the cylinder 15 is extended again, and the brick already clamped by the brick guide 16 is supplied. R
Push up to the bottom of. When the lower surface of the upper brick R and the upper surface of the brick R ₁ supplied from below come into contact with each other, the rod of the pressing cylinder 17 is shortened, and further, the pushing cylinder 15 is extended to pass through the lower brick R ₁ . And push up the brick R above (Fig. (D)). And the lower brick R ₁
When is pushed up to a predetermined position, the pressing cylinder 17 is extended again to clamp the brick R ₁ (FIG. (E)). Similarly, bricks are supplied one after another, and the bricks are sequentially sent upward by the same operation as above.

FIG. 3 is a conceptual diagram of a cylinder pushing-up type brick raising means L according to the second embodiment. A rectangular tubular brick guide 18 for guiding bricks is provided in the tower, and a movable stopper 20 projecting inward from a partial opening 19 of the guide 18 is rotatable around a support shaft 21 at the lower end. It is pivotally attached to the movable stopper 20.
Is always biased by a spring 22 so that the brick receiving portion 20a at the front end projects into the guide 18. Therefore,
Brick R supplied on the push-up cylinder 15 (Fig. (A))
However, when it rises as the cylinder expands, the brick R
The movable stopper 20 is kicked by and is rotated clockwise so that the brick R rises (Fig. (B)). When the lower surface of the brick R passes the tip receiving portion 20a of the movable stopper 20, the movable stopper 20 is reversed in the counterclockwise direction by the spring force, and the tip receiving portion 2 is again moved.
0 a projects into the guide 18. Here, when the push-up cylinder 15 is shortened, the brick R rests on the receiving portion 20a of the movable stopper 20 (FIG. (C)). In the same manner, when bricks R _{1 to} R ₂ are successively supplied to the push-up cylinder 15 and the bricks at the top are pushed up in order, the bricks R are sent upward along the brick guide 18 (Fig. (D)). ~ (E)).

FIG. 4 is a plan view of a roller type brick raising means L according to the third embodiment.

A pair of U-shaped support frames 23 and 24 are provided facing each other in the cylindrical towers 5 and 10 having a partial opening 5a in the vertical direction, and rollers 23a and 24a are axially supported by the support frames 23 and 24, respectively. There is. The brick R is nipped and conveyed between the two rollers 23a and 24a. That is, the pressing means 25 is provided on the support frame 23 on one side, and the roller 23a is pressed against the brick R via the support frame 23 so that the brick R can be sandwiched between the opposing rollers 23a and 24a. . Further, a geared motor 26 is connected to one roller 24a, and when the roller 24a is rotationally driven with the brick R being sandwiched, the brick R is moved to the rollers 23a and 2b.
It is designed to be conveyed upward while being sandwiched by 4a. Such roller sets are arranged along the tower at regular intervals.

When carrying out a brick-laying operation, it is necessary to first install the brick-laying device M, which is shown in FIG.
As shown in (1), the furnace opening 1A and the furnace bottom 1B of the inactive converter 1 are opened, and the installation stand 4 is installed right above the converter 1.
Then, an upper tower 5 equipped with a cabin 6 that can be raised and lowered and a brick unloading arm 8 attached to the cabin 6 is hung from the installation stand 4 into the converter 1, and is arranged below the lower end of the upper tower 5 and the furnace bottom 1B in advance. A flange 11 is connected to the upper end of the lower tower 10 on the work carriage 9 to form a tower that extends from above the furnace port 1A through the inside of the furnace and extends below the furnace bottom 1B.

Brick supply means 13 on the conveyor and work carriage 9 of the pretreatment device for cutting out one by one from the brick block
And are connected. The bricks R cut out one by one are conveyed, and after the bricks are taken into the brick taking-in means 14 arranged horizontally at the base of the lower tower 10, the taking-in means 14 is erected in a vertical position. The bricks taken in are conveyed upward along the tower by the above-mentioned cylinder pushing-up type or roller type brick raising means L incorporated in the lower tower 10 in the above-described manner. Then, when the brick is conveyed to a predetermined position, the brick R by the suction pad 8a provided at the tip of the articulated brick unloading arm 8 is remotely or automatically operated by the worker in the cabin 6.
Is taken out from inside the upper tower 5 through the opening 5a, brought to a predetermined position, and bricked. The brick unloading arm 8 is rotated in the inner circumferential direction of the furnace by rotating the turning ring 7. Then, after the bricks of a certain number of steps have been stacked, the lifting device 12 on the installation stand 4 raises the brick discharge arm 8 along with the cabin 6 along the upper tower 5, and the bricks of the next step are stacked in the same manner as above. Done in.

The brick laying operation is performed by a worker in the cabin operating the brick unloading arm by remote control or preferably by automatic control (computer control). Therefore, since the worker does not directly handle the bricks to stack the bricks, safety in high-place work is ensured and the brick stacking work becomes efficient.

[0023]

Since the present invention is constructed as described above, it has the following effects. Since the worker can mechanically perform brick stacking without directly handling the bricks, there is no safety problem, and the bricks can be efficiently stacked by the automatically controlled device. With a structurally simplified brick raising means of a cylinder pushing type or a roller type, a large number of bricks can be continuously conveyed along the tower in a state of being connected in the vertical conveying direction. By such a continuous transfer mode, bricks can be easily and quickly handled, and as a result, bricks can be quickly loaded (that is, the idle period of the furnace can be shortened),
Automation and unmanned operation can be achieved. Since there is a cabin with a brick unloading arm that moves along a tower that passes vertically through the furnace, while raising the brick unloading arm along the tower and rotating it in the circumferential direction, it can be positioned at any height position. In this way, bricks can be quickly and efficiently stacked in the circumferential direction.

Since bricks can be conveyed along the tower one by one by the cylinder pushing-up type or roller type brick raising means, bricks can be easily handled, and in turn, automation and unmanned operation of bricks can be achieved. Become.

While raising the brick carry-out arm along the tower and rotating it in the circumferential direction, bricks can be quickly and efficiently piled at an arbitrary height position or in the circumferential direction.

[Brief description of drawings]

FIG. 1 is a side view of the brick stacking apparatus of the present invention installed in a converter.

FIG. 2 is a conceptual diagram of a first embodiment of a brick raising means in the present invention.

FIG. 3 is a conceptual diagram of the second embodiment.

FIG. 4 is a conceptual diagram of the third embodiment.

FIG. 5 is a side view of a conventional brick stacking device.

FIG. 6 is a side view of another conventional brick stacking device.

[Explanation of symbols]

 M ... Brick stacking device L ... Brick lifting means R ... Brick 1 ... Converter 5 ... Upper tower 6 ... Cabin 8 ... Brick unloading arm 10 ... Lower tower 14 ... Brick loading means

Claims (1)

[Scope of utility model registration request] 1. A tower extending from above the furnace mouth through the inside of the furnace to below the bottom of the furnace is formed, and a cabin with a brick carry-out arm is provided on the tower so as to be able to move up and down, and one is cut out at the bottom of the tower. The length of the brick
Intake of bricks to feed to the next transfer process with the direction vertical
Means provided, and the bricks supplied from the brick intake means
The previously supplied bricks are connected vertically to each other in the longitudinal direction.
Pushing hands that are in contact with each other and sequentially push upward for the brick length
A step and holding means for holding the pushed-up brick
A brick stacking device, characterized in that the tower is provided with a means for raising bricks.