JP3679441B2 - Cooling equipment for continuous cast slabs heat treated - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a cooling device for performing heat treatment of a continuously cast slab.
[0002]
[Prior art]
The slab manufactured by the continuous casting method is then transported to a heating furnace and heated to a predetermined temperature and rolled by a rolling mill. If it is transported to the heating furnace immediately after casting, the composition, structure, and heating temperature of the slab Or, since cracking occurs depending on the rolling conditions, as shown in FIG. 5, the cooling water tank 13 is separately placed on the machine side of the conveying line, and the slab 10 carried into the conveying table 18 is placed between the cooling water tank and the unloading table. A slab support device has been proposed in which a slab is immersed in a water tank using a dedicated crane 1 for straddling.
[0003]
[Problems to be solved by the invention]
The conventional method is a slab support method using a dedicated crane in which a cooling water tank is separately placed on the machine side of the three-feed line, and the slab carried into the transfer table is straddled between the cooling water tank and the carry-out table. Therefore, there are the following problems.
(1) A dedicated crane that moves while supporting the slab between the transfer table and the cooling water tank has a large moving stroke, and the slab is within the slab loading pitch determined by the casting speed and the shortest cutting length of the slab. The heat treatment time for immersing in the cooling water tank is limited.
(2) Since the space for installing a cooling water tank to the machine side of the conveying line is required, to came the need for building extended not only an obstacle to machine side passage, leading to rise of equipment cost.
[0004]
The present invention has been made in view of such circumstances, and provides a cooling device for a continuously cast slab that is heat-treated and has improved processing capability by shortening the moving stroke by making the transfer table movable. With the goal.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a device for conveying a slab manufactured by continuous casting and cut to a predetermined length on a conveying table in which a plurality of slabs are continuously arranged, and is conveyed during the slab conveyance. one table, the support cradle, and Tsu支through the running rollers and the moving table to move horizontally in the conveying direction and perpendicular direction, on the support cradle, supporting the slab on top of the moving table A cooling device for a continuous cast slab to be heat treated, characterized in that a lifting device for raising and lowering is disposed, and a cooling water tank for rapidly cooling the slab surface by immersing the surface of the slab is disposed below the moving table. Processing time and installation space.
[0006]
[Action]
One of a plurality of continuous conveying tables for conveying the slab is a moving table that horizontally moves in a direction perpendicular to the conveying direction, and a lifting device that supports and lifts the slab on the upper part of the moving table A cooling water tank is provided at the bottom of the moving table, and the slab is carried in and out when the moving table is at the moving forward limit, and the lifting device is used when the moving table is at the moving backward limit The slab is supported up and down to the cooling water tank, and by moving the transfer table horizontally, the movement stroke can be as small as necessary within the range where there is no interference between the slab and the transfer table. Since the cooling water tank is arranged at the lower part of the table, the installation space of the facility can be made compact.
[0007]
【Example】
Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.
1 is a perspective view of the main part of the present invention, FIG. 2 is a side view of the present invention, FIG. 3 is a cross-sectional view of AA, and FIGS. As shown in the figure, the movable table 2 is guided on the rail 4 via the traveling roller 3 on the support frame 1 and is installed so as to be able to travel by the operation of the traveling cylinder 6. On the support frame 1, an elevating device 7 is guided by a guide frame 8 via an elevating roller 5 so that the elevating device 7 can be moved up and down by the operation of the elevating cylinder 9. A hook 12 arranged in a necessary number is attached to the hook connection frame 11.
On the other hand, a cooling water tank 13 for rapidly cooling the slab 10 is disposed below the movable table 2 so as to be able to immerse the length of the slab being conveyed.
[0008]
A plurality of rollers 14 for conveying and supporting the slab 10 are arranged on the lower surface of the table frame 18 on the movable table 2, and a rotary bearing 15 and a chain 16 for transmitting a rotational driving force to the rollers are provided. The slab 10 is conveyed via
The roller 14 is supported in a cantilever manner and has a structure in which the hook 12 attached to the lifting device 7 can be easily arranged.
[0009]
FIG. 4 shows the transferred state of the slab in the present invention.
(A) The figure shows a state before the moving table 2 is positioned at the moving forward limit, the slab 10 that has been conveyed is placed thereon, and the hook 12 provided on the lifting device 7 lifts the slab 10 Indicates.
(B) The figure shows a state in which the moving table is positioned at the moving forward limit, and the slab 10 that has been conveyed is lifted by the hook 12 provided on the lifting device 7.
(C) The figure shows a state in which the moving table is retracted to the last stage after moving, and the hook 12 provided in the lifting device 7 can be lowered to the cooling water tank 13 with the cast piece 10 placed thereon.
[0010]
The above shows the process until the slab 10 that has been carried into the moving table is rapidly cooled, but the carry-out is performed in the reverse process described above.
[0011]
【The invention's effect】
As apparent from the above description, the present invention has the following remarkable effects.
(1) By moving the transfer table horizontally, the movement stroke can be reduced to the minimum necessary so that there is no interference between the slab and the transfer table, so the movement time of the slab can be shortened and heat treatment time can be secured. It becomes easy.
(2) Since there is no need to install a cooling water tank on the machine side of the transfer line, it is possible to secure a machine-side passage, eliminate the need for building expansion, and reduce the equipment cost.
(3) Since the roller disposed on the moving table is attached to the lower surface of the table frame, the installation level of the cooling water tank is not deep, and the elevation stroke for immersing the slab into the cooling water can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the main outline of the present invention.
FIG. 2 is a side view illustrating an outline of a slab support device for continuous cast pieces according to the present invention.
FIG. 3 is a schematic explanatory view of the continuous cast slab support device of the present invention showing a cross section along line AA in FIG. 1;
FIG. 4 is an explanatory view of a slab transfer method by a slab lifting device, and (a) is an explanatory view showing a state where the slab is placed on a moving table. (B) is explanatory drawing which shows the state which transferred the slab to the raising / lowering apparatus. (C) is explanatory drawing which shows the state which a moving table evacuates and can cast a slab to a cooling water tank.
FIG. 5 is a side view illustrating an outline of a conventional slab support device for continuous cast pieces.
[Explanation of symbols]
1: support frame 2: moving table 3: traveling roller 4: rail 5: elevating roller 6: traveling cylinder 7: elevating device 8: guide frame 9a, 9b: elevating cylinder 10: slab 11: connecting frame 12: hook 13: Cooling water tank 14: Roller 15: Rotary bearing 16: Chain 17: Electric motor 18: Table frame

Claims (1)

Manufactured by continuous casting, the slab which is cut to length, in a device for conveying the conveying table arranged more consecutive, one conveying table during slab transport, the support cradle, the transport via running rollers and the moving table for horizontal movement in a direction perpendicular to the direction to Tsu支, wherein on a support cradle, place the lifting device for supporting the lifting of the slab on top of the moving table, and said A cooling apparatus for continuously cast slabs to be heat-treated, wherein a cooling water tank for rapidly cooling the slab surface by immersing the surface of the slab is disposed below the moving table.

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