Casting blank lifting device and lifting method

Abstract

The invention belongs to the technical field of metallurgical continuous casting equipment, and particularly relates to a casting blank lifting device and a lifting method. The casting blank lifting device comprises a base, a support is arranged on the base, a winch is arranged at the top of the support, guide rails are symmetrically arranged on frames on the two sides of the support inwards, a steel wire rope is wound around the winch, a movable pulley lifting tool is connected to the end of the steel wire rope, and a movable roller way is connected to the lower portion of the movable pulley lifting tool. The two ends of the movable roller way are slidably connected with the guide rails. When the foundation elevation of the continuous casting equipment and the foundation elevation of the steel rolling equipment are different and greatly different, casting blanks produced through continuous casting can be directly lifted to the elevation of the roller way of the equipment in the follow-up process and then are transported to the follow-up equipment through the roller way, human participation is reduced, the labor cost is reduced, and operation is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of metallurgical continuous casting equipment, and in particular relates to a casting billet lifting device and a lifting method. Background Art

[0002] The output of a steel plant determines the direct economic benefits of a steel plant. The most ideal production process is to convert the refined molten steel into ingots through continuous casting equipment and then transport them to the rolling mill to be rolled into the final product. However, most steel plants arrange steelmaking and steel rolling in two different workshops. Due to the different construction times of the two workshops and actual environmental factors, the elevations of the two workshops cannot be guaranteed to be exactly the same. In this case, in actual production projects, the ingots produced by continuous casting cannot be directly sent to the next process flow through the roller.

[0003] The ingots produced by continuous casting are piled up on site and then transported by overhead cranes. Some are even transported to the next workshop by vehicles. If there is a problem in any link during this period, a large amount of ingots will be piled up, and the previous steelmaking and continuous casting links will be forced to stop. At the same time, if the ingots are piled up for a long time and are not sent to the next process, the cooled ingots will have to be reheated for a long time, which greatly increases the risk of becoming scrap ingots. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to provide a billet lifting device and a lifting method. When the foundation elevations of the continuous casting equipment and the steel rolling equipment are different and the difference is large, the billets produced by continuous casting can be directly lifted to the elevation of the roller table of the subsequent process equipment, and then transported to the subsequent equipment through the roller table, which reduces human participation, reduces labor costs, improves operating efficiency, and greatly improves the subsequent production rhythm, providing favorable conditions for reducing production costs.

[0005] The technical solution of the present invention is: a casting billet lifting device, including a base, a bracket is provided on the base, a winch is provided on the top of the bracket, guide rails are symmetrically provided inwardly on the two side frames of the bracket, a steel wire rope is wound on the winch, the end of the steel wire rope is connected to a movable pulley hanger, a movable roller is connected below the movable pulley hanger, and both ends of the movable roller are slidably connected to the guide rails.

[0006] A lifting lug is provided on the top of the movable roller table below the movable pulley sling, a pin is provided in the lifting lug, and the movable pulley sling is detachably connected to the movable roller table through the lifting lug.

[0007] Guide wheels are respectively arranged at both ends of the movable roller, and the guide wheels are in contact with the inner wall of the guide rail groove.

[0008] A plurality of anti-skid mechanisms are arranged on the top of the movable roller table between the movable pulley hangers. The anti-skid mechanisms include a fixed bracket. A push claw is arranged on the upper part of the fixed bracket. The push claw is movably connected to the fixed bracket. A push claw pin is arranged at the connection. The anti-skid mechanism is used to prevent the slab from sliding.

[0009] A heat insulation cover is arranged above the anti-slip mechanism.

[0010] The number of the anti-skid mechanisms is six, the number of the guide wheels is four, and the number of the lifting ears is four. The lifting ears are installed on the moving roller table by bolts.

[0011] A method for lifting a cast slab, using the above-mentioned device for lifting a cast slab, comprises the following steps: S1: The continuous casting slab is transported to the moving roller table through the incoming roller table; S2: The winch starts, the wire rope is pulled, and the movable pulley sling drives the movable roller to move upward along the guide rail until the movable roller is aligned with the subsequent roller. The winch is closed, and the subsequent roller conveys the ingot on the movable roller to the next process; S3: The winch starts, the wire rope is extended, and the movable pulley hoist drives the moving roller to move downward along the guide rail until it is aligned with the incoming billet roller, completing the billet lifting.

[0012] The technical effects of the present invention are as follows: 1. By setting a movable roller that can move up and down, when the foundation elevations of the continuous casting equipment and the steel rolling equipment are different and the difference is large, the ingot produced by continuous casting can be directly lifted to the elevation of the roller of the subsequent process equipment, and then transported to the subsequent equipment through the roller, thereby improving the subsequent production rhythm and reducing production costs. 2. The present invention can lift ingots with specifications of 6 to 10m and a maximum of 80t. The lifting height can reach a maximum of 5m. When it rises to a high position, it can ensure that the horizontal error between the movable roller and the subsequent roller is ±0.5mm, so as to ensure that the ingot can be smoothly transported to the subsequent process flow; 3. The present invention reduces human participation in the process of lifting ingots, reduces labor costs, and improves the operating rate.

[0013] The following is a further description with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural front view of a casting billet lifting device of the present invention.

[0015] Figure 2 It is a structural side view of a casting billet lifting device of the present invention.

[0016] Figure 3 It is a working schematic diagram of a casting billet lifting device of the present invention.

[0017] Figure 4It is a structural schematic diagram of the anti-skid mechanism of the present invention.

[0018] Figure 5 It is a working schematic diagram of the anti-skid mechanism of the present invention.

[0019] Figure numerals: 1- winch, 2- wire rope, 3- bracket, 4- guide rail, 5- pin shaft, 6- lifting ear, 7- anti-skid mechanism, 8- slab, 9- moving roller, 10- base, 11- heat insulation cover, 12- guide wheel, 13- movable pulley hanger, 71- push claw, 72- fixed bracket, 73- push claw pin shaft. DETAILED DESCRIPTION Example 1

[0020] like Figures 1 to 5 As shown, a casting billet lifting device includes a base 10, a bracket 3 is provided on the base 10, a winch 1 is provided on the top of the bracket 3, guide rails 4 are symmetrically provided inwardly on both side frames of the bracket 3, a steel wire rope 2 is wound around the winch 1, and a movable pulley hanger 13 is connected to the end of the steel wire rope 2. A movable roller 9 is connected below the movable pulley hanger 13, and both ends of the movable roller 9 are slidably connected to the guide rails 4.

[0021] When the present invention is actually used, the ingot produced by continuous casting is transported to the position of the mobile roller 9 through the incoming roller; the winch 1 is started, the wire rope 2 is pulled, and the movable pulley hanger 13 drives the mobile roller 9 to move upward along the guide rail 4 until the mobile roller 9 is aligned with the subsequent roller, the winch 1 is closed, and the subsequent roller conveys the ingot on the mobile roller 9 to the next process; the winch 1 is started, the wire rope 2 is extended, and the movable pulley hanger 13 drives the mobile roller 9 to move downward along the guide rail 4 until it is aligned with the incoming roller, thereby completing the lifting of the ingot. The present invention can lift slabs with specifications of 6 to 10 meters and a maximum of 80 tons, and the maximum lifting height can reach 5 meters. When it is lifted to a high position, the horizontal error between the mobile roller and the subsequent roller can be guaranteed to be ±0.5mm, so as to ensure that the slab can be smoothly transported to the subsequent process flow. The present invention arranges a mobile roller that can move up and down. When the foundation elevations of the continuous casting equipment and the steel rolling equipment are different and the difference is large, the cast slabs produced by continuous casting can be directly lifted to the elevation of the roller of the subsequent process equipment, and then transported to the subsequent equipment through the roller, thereby improving the subsequent production rhythm and reducing the production cost. Example 2

[0022] On the basis of Example 1, in this embodiment, preferably, a lifting ear 6 is provided on the top of the movable roller 9 below the movable pulley hanger 13, a pin shaft 5 is provided in the lifting ear 6, and the movable pulley hanger 13 and the movable roller 9 are detachably connected via the lifting ear 6.

[0023] When the present invention is actually used, the movable pulley hanger 13 is connected to the winch 1 through a wire rope, and is connected to the lifting lug 6 through a pin shaft 5; the winch 1 is driven by a reduction motor to lift the lower movable roller together with the ingot to a certain height. When the foundation elevations of the continuous casting equipment and the steel rolling equipment are different and the difference is large, the ingot produced by continuous casting can be directly lifted to the elevation of the roller of the subsequent process equipment. Example 3

[0024] On the basis of Example 1 or Example 2, in this embodiment, preferably, guide wheels 12 are respectively provided at both ends of the movable roller 9, and the guide wheels 12 are in contact with the inner wall of the groove of the guide rail 4.

[0025] When the present invention is actually used, guide wheels 12 are respectively provided at both ends of the movable roller 9, and the guide wheels 12 are in contact with the inner wall of the groove of the guide rail 4. The guide wheels 12 ensure that the movable roller can move more smoothly on the track. Example 4

[0026] On the basis of Example 1 or Example 3, in this embodiment, preferably, a plurality of anti-skid mechanisms are provided on the top of the movable roller between the movable pulley hangers, and the anti-skid mechanism 7 includes a fixed bracket 72, a push claw 71 is provided on the upper part of the fixed bracket 72, and the push claw 71 is movably connected to the fixed bracket 72, and a push claw pin 73 is provided at the connection, and the anti-skid mechanism 7 is used to prevent the slab 8 from sliding.

[0027] When the present invention is actually used, a plurality of anti-skid mechanisms 7 are provided on the top of the movable roller 9 between the movable pulley hangers 13, and the anti-skid mechanisms 7 prevent the equipment from tilting or the roller from accidentally reversing during the billet lifting process, causing the billet to fall and damage the preceding equipment. Example 5

[0028] On the basis of Embodiment 1, in this embodiment, preferably, a heat insulation cover 11 is provided above the anti-slip mechanism 7 .

[0029] When the present invention is actually used, a heat insulation cover 11 is provided above the anti-slip mechanism 7 to prevent the slab temperature from being too high from the previous process from burning out the winch when it is lifted to a high position, thereby protecting the winch 1. Example 6

[0030] On the basis of Example 1, in this embodiment, preferably, the number of the anti-skid mechanisms 7 is six, the number of the guide wheels 12 is four, the number of the lifting ears 6 is four, and the lifting ears 6 are installed on the moving roller 9 by bolts.

[0031] When the present invention is actually used, the lifting lug 6 is mounted on the moving roller 9 by means of bolts, and the connection method is simple and the connection is tight. Example 7

[0032] A method for lifting a cast slab, using the above-mentioned device for lifting a cast slab, comprises the following steps: S1: The continuous casting slab is transported to the moving roller table 9 through the incoming slab roller table; S2: The hoist 1 is started, the wire rope 2 is pulled, and the movable pulley sling 13 drives the movable roller 9 to move upward along the guide rail 4 until the movable roller 9 is aligned with the subsequent roller. The hoist 1 is closed, and the subsequent roller conveys the ingot on the movable roller 9 to the next process; S3: The winch 1 is started, the wire rope 2 is extended, and the movable pulley sling 13 drives the movable roller 9 to move downward along the guide rail 4 until it is aligned with the incoming billet roller, completing the billet lifting.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A casting billet lifting device, characterized in that: The invention comprises a base (10), a bracket (3) being provided on the base (10), a winch (1) being provided on the top of the bracket (3), guide rails (4) being symmetrically provided inwardly on the frames on both sides of the bracket (3), a steel wire rope (2) being wound around the winch (1), the end of the steel wire rope (2) being connected to a movable pulley sling (13), a movable roller (9) being connected below the movable pulley sling (13), and both ends of the movable roller (9) being slidably connected to the guide rails (4).

2. A casting billet lifting device according to claim 1, characterized in that: A lifting lug (6) is provided at the top of the movable roller (9) below the movable pulley hanger (13), a pin shaft (5) is provided in the lifting lug (6), and the movable pulley hanger (13) and the movable roller (9) are detachably connected via the lifting lug (6).

3. The casting billet lifting device according to claim 1, characterized in that: Guide wheels (12) are respectively provided at both ends of the movable roller conveyor (9), and the guide wheels (12) are in contact with the inner wall of the groove of the guide rail (4).

4. The casting billet lifting device according to claim 1, characterized in that: A plurality of anti-skid mechanisms (7) are provided on the top of the movable roller (9) between the movable pulley hangers (13), the anti-skid mechanisms (7) comprising a fixed bracket (72), a push claw (71) being provided on the upper portion of the fixed bracket (72), the push claw (71) being movably connected to the fixed bracket (72), a push claw pin (73) being provided at the connection, and the anti-skid mechanisms (7) are used to prevent the slab (8) from sliding.

5. A casting billet lifting device according to claim 4, characterized in that: A heat insulation cover (11) is provided above the anti-slip mechanism (7).

6. The casting billet lifting device according to claim 1, characterized in that: The number of the anti-skid mechanisms (7) is six, the number of the guide wheels (12) is four, the number of the lifting ears (6) is four, and the lifting ears (6) are mounted on the moving roller table (9) by means of bolts.

7. A method for lifting a cast slab, using a cast slab lifting device as claimed in claim 1, characterized in that: The following steps are involved: S1: The ingot produced by continuous casting is transported to the moving roller table (9) via the incoming roller table; S2: The winch (1) is started, the wire rope (2) is pulled, and the movable pulley sling (13) drives the movable roller (9) to move upward along the guide rail (4) until the movable roller (9) is aligned with the subsequent roller, the winch (1) is closed, and the subsequent roller conveys the ingot on the movable roller (9) to the next process; S3: The winch (1) is started, the wire rope (2) is extended, and the movable pulley hanger (13) drives the movable roller (9) to move downward along the guide rail (4) until it is aligned with the incoming roller, thereby completing the lifting of the cast billet.

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