A crane turning ladle trolley for a slow cooling process of metallurgical ladle

Abstract

The application provides a crane ladle turning trolley for a slow cooling process of metallurgical ladle, which comprises a lifting mechanism, a turning mechanism, a hanging beam, a lifting tool, a telescopic arm and a trolley frame, a weight biasing turntable is connected with the lifting tool frame, the telescopic arm is hinged with the trolley frame, the lower part of the telescopic arm is connected with the lifting tool, a turning rope passes through a hanging beam movable pulley and is connected with the turning mechanism at one end and the lifting mechanism at the other end, the lifting tool is connected with the lifting mechanism through a lifting rope on the lifting tool movable pulley, the turning rope and the lifting rope have the same ratio, the lifting mechanism and the turning mechanism have the same nominal diameter, the hanging beam and the weight biasing turntable are connected through a turntable steel wire rope, a hook is connected with the lifting tool frame through a hinge shaft, the hook is provided with a hook roller, a frame clamp on the lifting tool frame is matched with a ladle trunnion on the ladle. The application has the following beneficial effects: the lifting tool and the ladle are combined through vertical movement, the ladle is not turned due to asynchronization during lifting, and the risk of horizontal movement and ladle hanging is completely avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metallurgy, in particular to a crane turning trolley for a metallurgical ladle slow cooling process.

[0002] BACKGROUND

[0003] In the metallurgical process, whether it is black metallurgy or non-ferrous metallurgy, a large amount of high-temperature liquid slag will be produced, and the slag ladle used to receive the high-temperature slag needs to be transported to the slow cooling field for spray cooling.

[0004] When the RGV car full of high-temperature slag ladles reaches the slow cooling field, the gantry crane needs to take down the slag ladle and place it in the slow cooling field for spray cooling. This process generally uses manual operation to realize the gantry crane picking and hanging the slag ladle. After the slag ladle is placed in the slow cooling field for a period of time, the slag ladle is hoisted to the slag pouring area, then the slag ladle is turned over and poured, and after pouring, the empty slag ladle is placed back in the slow cooling field or on the RGV car.

[0005] Because the slag ladle slow cooling field is located outdoors, there are unidirectional winds and vehicle movements during normal operation, causing the picking and hanging hooks to swing and be difficult to accurately and reliably hang, often requiring a long time to stabilize the hook. At the same time, rain, fog, and water mist caused by slag ladle spraying in the slow cooling field all cause great interference to the visibility of manual picking and hanging hooks. Often, part of the main hook and the auxiliary hook are not hung, which poses a great safety hazard to production. When manually operating the crane trolley to pick and hang the ladle, if the operation is not proper and the trolley moves out of position, it will tip over the ladle, causing other ladles in the slow cooling field to tip over in a domino effect. The main and auxiliary hooks need to be synchronized during lifting operations, and if the control system fails, i.e., one mechanism operates and the other mechanism stops, an air accident of the ladle will occur, posing a safety hazard. SUMMARY

[0006] The present application proposes a crane turning trolley for a metallurgical ladle slow cooling process, which solves the problems in the prior art.

[0007] The technical solution of the present application is as follows:

[0008] A crane tumbler for a slow cooling process of a metallurgical ladle, comprising a lifting mechanism, a turnover mechanism, a hanging beam, a lifting tool, a telescopic arm and a tumbler frame, the lifting mechanism and the turnover mechanism are fixedly connected with the tumbler frame respectively, the lifting tool comprises a weight bias turntable, a lifting tool frame and a hook, the weight bias turntable is connected with the lifting tool frame through a hinged shaft, the telescopic arm is fixedly connected with the tumbler frame through a hinged seat, the lower part of the telescopic arm is connected with the lifting tool, one end of the turnover winding rope after passing through a hanging beam movable pulley is connected with a drum of the turnover mechanism, the other end is connected with a drum of the lifting mechanism, the lifting tool is suspendedly connected with the drum of the lifting mechanism through a lifting winding rope on a lifting tool movable pulley, the other end is fixedly connected with the tumbler frame, the turnover winding rope and the lifting winding rope have the same ratio, the drum of the lifting mechanism and the drum of the turnover mechanism have the same nominal diameter, the hanging beam and the weight bias turntable are connected through a turntable steel wire rope, the hook is connected with the lifting tool frame through a hinged shaft, the hook is provided with a hook roller, and a frame bayonet on the lifting tool frame is matched with a ladle trunnion on the ladle.

[0009] Preferably, the telescopic arm is provided with a buffer in the running direction of the tumbler.

[0010] The working principle of the present application is as follows:

[0011] One end of the lifting winding rope is connected to the drum of the lifting mechanism, and the other end is connected to the fixed end on the tumbler frame of the lifting mechanism; the turnover mechanism lifts or lowers the hanging beam through the turntable steel wire rope, and the hanging beam rotates the weight bias turntable through the turntable steel wire rope.

[0012] The turnover winding rope and the lifting winding rope have the same ratio, and the winding drums have the same diameter; when the lifting mechanism rises or descends, the hanging beam and the lifting tool also rise or descend synchronously; when the turnover mechanism rises or descends, the ladle is turned over; the turnover mechanism and the lifting mechanism are completely independent and can independently act and combine.

[0013] The present application has the following advantages:

[0014] The lifting tool and the ladle are combined through vertical action, and once combined, the lifting tool and the ladle can complete the lifting and turning actions through the action of the ladle turnover mechanism; the lifting mechanism and the ladle turnover mechanism have the same ratio, the winding drums have the same diameter and are completely independent, and when lifting, the ladle will not be turned over due to asynchronization, completely avoiding the risk of horizontal movement.

[0015] The buffer bidirectionally pushes against the telescopic arm, absorbs the recoil force generated by the cargo during the dumping process, has the functions of rapid roll reduction and wind protection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the crane-operated ladle trolley used in the slow cooling process of metallurgical slag bags according to the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the lifting device;

[0019] Figure 3 for Figure 2 Side view;

[0020] Figure 4 This is a schematic diagram of the slag bag structure;

[0021] In the picture:

[0022] 1. Lifting mechanism, 2. Articulated seat, 3. Tilting mechanism, 4. Tilting rope winding, 5. Lifting beam, 6. Lifting device, 7. Telescopic boom, 8. Lifting rope winding, 9. Buffer, 10. Trolley frame;

[0023] 11. Unbalanced turntable; 12. Turntable wire rope; 13. Lifting frame; 14. Lifting beam pulley; 15. Lifting tool pulley; 16. Hook; 17. Slag bag; 18. Frame bayonet; 19. Hook roller; 20. Unbalanced turntable arm; 21. Slag bag trunnion; 22. Slag bag trunnion mating surface. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1-4The illustrated embodiment can know that the crane tumbler for the slow cooling process of metallurgical ladle, including: hoisting mechanism 1, turnover mechanism 3, hanging beam 5, lifting appliance 6, telescopic arm 7 and trolley frame 10, hoisting mechanism 1 and turnover mechanism 3 are fixedly connected with trolley frame 10 respectively, lifting appliance 6 includes eccentric weight turntable 11, lifting appliance rack 13 and hook 16, eccentric weight turntable 11 is connected with lifting appliance rack 13 by hinged shaft;Telescopic arm 7 is fixedly connected with trolley frame 10 by hinged seat 2;The lower part of telescopic arm 7 is connected with lifting appliance 6;Turnover winding rope 4 is connected with the winding drum of turnover mechanism 3 at one end after passing through hanging beam movable pulley 14, and is connected with the winding drum of hoisting mechanism 1 at the other end, lifting appliance 6 is suspendedly connected with the winding drum of hoisting mechanism 1 through hoisting appliance movable pulley 15 hoisting winding rope 8, and is fixedly connected with trolley frame 10 at the other end, the winding ratio of turnover winding rope 4 and hoisting winding rope 8 is same;The winding drum of hoisting mechanism 1 and the winding drum of turnover mechanism 4 are same in nominal diameter;Hanging beam 5 and eccentric weight turntable 11 are connected by turntable wire rope 12;Hook 16 is connected with lifting appliance rack 13 by hinged shaft, and hook roller 19 is arranged on hook 16;The rack bayonet 18 on lifting appliance rack 13 is clamped with the ladle trunnion 21 on the ladle 17.

[0026] Telescopic arm 7 is provided with buffer 9 in the direction of trolley operation, and buffer 9 is fixedly connected with trolley frame 10.

[0027] The inside of lifting appliance rack 13 can be provided with corresponding heat insulation material according to the temperature of the hoisted article to protect the rack from being damaged by heat radiation.

[0028] The working process of the above-mentioned tumbler is as follows:

[0029] In the unhooked state, hanging beam 5 is in the lowest position relative to lifting appliance rack 13, at this time, eccentric weight turntable 11 rotates clockwise under the action of self weight to make turntable wire rope 12 tensioned, eccentric weight turntable arm 20 on eccentric weight turntable 11 lifts hook roller 19 on hook 16 clockwise, at this time, hook 16 is inclined to the maximum angle.When the trolley runs to the position directly above the ladle 17, hoisting mechanism 1 is lowered to release the rope, at this time, hanging beam 5 and lifting appliance 6 run downward until the rack bayonet 18 clamps the ladle trunnion 21, at this time, there is a gap between hook 16 and ladle trunnion 21.

[0030] Turnover winding rope 4 drives hanging beam 5 to move upward under the winding of turnover mechanism 3, at the same time, hanging beam 5 pulls turntable wire rope 12 to move upward, turntable wire rope 12 drives eccentric weight turntable 11 to rotate counterclockwise, eccentric weight turntable arm 20 swings counterclockwise, hook 16 also swings counterclockwise under the action of self weight until completely in the state of suspension, at this time, hook roller 19 and the upper surface of eccentric weight turntable arm 20 are completely separated.

[0031] The hoisting mechanism 1 reeling rope winding, because of the turnover winding rope 4 one end is connected to the hoisting mechanism 1 reel, hoisting winding rope 8 one end is also connected to the hoisting mechanism 1 reel, turnover winding rope 4 and hoisting winding rope 8 same ratio, reel nominal diameter is the same, at this time will overturn the spreaders 6 and overturn the beam 5 are hoisted simultaneously, and the hoisting speed is the same, at this time the hook 16 is completely hooked up the ladle ear shaft 21.

[0032] The turnover winding rope 4 in the turnover mechanism 3 winding drive beam 5 upward movement, while the beam 5 traction turntable wire rope 12 upward movement, turntable wire rope 12 drive eccentric weight turntable 11 counterclockwise rotation, eccentric weight turntable arm 20 counterclockwise swing and ladle ear plate contact surface 22 contact, and drive the ladle 17 and eccentric weight turntable arm 20 synchronous rotation around the center, until the ladle 17 in the slag is completely poured out.

[0033] The crane is not affected by conventional wind and rain, fog and other adverse factors, mechanical anti shake is conducive to accurate alignment; reliable to pick up and hang the ladle, only need to fall in line. The turnover mechanism and the hoisting mechanism are completely independent, the spreaders and the beam are synchronized during hoisting, which avoids the safety hazard of accidental ladle turnover caused by the speed difference between the hoisting mechanism and the beam.

[0034] The ladle has a great reverse impact when it is poured, and the swing telescopic arm with buffering effect can effectively absorb this part of the energy, which can prevent the crane from being damaged by the reverse impact.

[0035] The above only describes the preferred embodiments of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A crane tundish car for a metallurgical ladle slow cooling process, characterized in that, It includes: Lifting mechanism (1), turnover mechanism (3), hanging beam (5), spreader (6), telescopic arm (7) and trolley frame (10), the lifting mechanism (1) and the turnover mechanism (3) are fixedly connected with the trolley frame (10) respectively, the spreader (6) includes eccentric weight turntable (11), spreader rack (13) and hook (16), the eccentric weight turntable (11) is connected with the spreader rack (13) through the hinged shaft, the telescopic arm (7) is fixedly connected with the trolley frame (10) through the hinged seat (2), the lower part of the telescopic arm (7) is connected with the spreader (6), one end of the turnover winding rope (4) is connected with the drum of the turnover mechanism (3) after passing through the hanging beam movable pulley (14), the other end is connected with the drum of the lifting mechanism (1), the spreader (6) is suspendedly connected with the drum of the lifting mechanism (1) through the lifting winding rope (8) on the spreader movable pulley (15), the other end is fixedly connected with the trolley frame (10), the turnover winding rope (4) and the lifting winding rope (8) have the same ratio, the drum of the lifting mechanism (1) and the drum of the turnover mechanism (3) have the same nominal diameter, the hanging beam (5) and the eccentric weight turntable (11) are connected through the turntable steel wire rope (12), the hook (16) is connected with the spreader rack (13) through the hinged shaft, the hook (16) is provided with hook roller (19), the rack bayonet (18) on the spreader rack (13) is clamped and matched with the ladle trunnion (21) on the ladle (17), the eccentric weight turntable arm (20) on the eccentric weight turntable (11) lifts the hook roller (19) on the hook (16) clockwise, the eccentric weight turntable arm (20) counterclockwise swings and contacts with the ladle lug plate combined surface (22), and drives the ladle (17) and the eccentric weight turntable arm (20) to rotate synchronously around the center, until the slag in the ladle (17) is completely poured out.

2. A crane tundisher car for a slow cooling process of metallurgical ladles according to claim 1, characterized in that, The telescopic arm (7) is provided with buffer (9) in the trolley running direction, and the buffer (9) is fixedly connected with the trolley frame (10).

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