CN116786805A - Ladle rapid positioning and tipping method for ferroalloy automatic casting machine - Google Patents

Ladle rapid positioning and tipping method for ferroalloy automatic casting machine Download PDF

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Publication number
CN116786805A
CN116786805A CN202210269959.XA CN202210269959A CN116786805A CN 116786805 A CN116786805 A CN 116786805A CN 202210269959 A CN202210269959 A CN 202210269959A CN 116786805 A CN116786805 A CN 116786805A
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CN
China
Prior art keywords
ladle
clamping mechanism
positioning
tipping
ferroalloy
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Pending
Application number
CN202210269959.XA
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Chinese (zh)
Inventor
王录
刘相元
吴明月
奚泉
毕磊
王�义
张立新
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Harbin Boshi Automation Co Ltd
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Harbin Boshi Automation Co Ltd
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Application filed by Harbin Boshi Automation Co Ltd filed Critical Harbin Boshi Automation Co Ltd
Priority to CN202210269959.XA priority Critical patent/CN116786805A/en
Publication of CN116786805A publication Critical patent/CN116786805A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/06Equipment for tilting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/12Travelling ladles or similar containers; Cars for ladles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

The application provides a ladle rapid positioning and tipping method for an iron alloy automatic casting machine, which solves the problems of low casting efficiency caused by difficult positioning and poor automaticity of a ladle nozzle before casting of the existing ladle. The steel ladle discharging device comprises positioning columns arranged on opposite sides of a steel ladle discharging hole, wherein the axes of the positioning columns are positioned on the symmetrical surface of the steel ladle discharging hole; step one, hoisting a ladle filled with molten ferroalloy to a position right above a ladle trolley through a hoisting device, and keeping a distance from the ladle trolley so that a positioning column is positioned in a region which can be clamped by a centering device arranged right behind the ladle trolley; starting a left clamping mechanism and a right clamping mechanism of the centering device to move in opposite directions, clamping the positioning column to enable the steel ladle to rotate, and enabling a discharge hole of the steel ladle to be positioned at a correct required position when the distance between the two clamping mechanisms is close to the diameter of the positioning column; and thirdly, completely falling and tipping the ladle. According to the application, the clamping mechanism is synchronously opened and closed, so that the quick positioning of the center line of the ladle and the center line of the equipment is realized.

Description

Ladle rapid positioning and tipping method for ferroalloy automatic casting machine
Technical Field
The application belongs to the technical field of pouring, and particularly relates to a ladle rapid positioning and tipping method for an iron alloy automatic casting machine.
Background
The ladle is an important device for smelting and pouring, and is a container for carrying and holding materials in the process of discharging from a furnace to pouring. The ladle is used for holding the material and part of slag flowing out from the outlet of primary smelting furnace, and making partial deoxidation and alloying operation, so that the material can be calmed in the ladle for a period of time, the material temperature can be regulated, the components can be uniform, nonmetallic inclusion in the material can be floated, and at the same time, in the casting process, the casting can be smoothly implemented by controlling the flow rate of the material.
After the steel ladle is filled with materials, the lifting equipment hooks the two trunnions through the lifting hooks and transfers the materials to the designated position. The ladle is manually hooked to adjust the position and the posture of the ladle, a positioning block or a centering clamping block can be used as auxiliary positioning in the adjustment process, after the ladle is positioned after the adjustment is finished, a ladle discharge hole is aligned to the correct direction, and a lifting ring is lifted upwards through another lifting device, so that materials are injected into a corresponding die from the ladle discharge hole.
In the process, the steel ladle is very close to the steel ladle when the posture of the steel ladle is manually adjusted, so that a great safety risk exists, and the steel ladle positioning efficiency is low. Even with conventional locating blocks or centering clips to aid in locating, it does not provide for more accurate positioning. In addition, because different ladles are used under the high-temperature working condition, the appearance of the ladle can be changed, and even if the auxiliary positioning block is arranged, the positioning is difficult to be accurate.
Moreover, after the steel ladle is used for a long time, the appearance of the steel ladle becomes irregular, so that difficulty is brought to the positioning of the steel ladle, the steel ladle discharge hole is difficult to align to a designated position, and correction of the appearance of the steel ladle is very difficult. This deformation makes it difficult for conventional positioning blocks or centering blocks to also function as an auxiliary positioning.
Based on the above technical problems, it is needed to provide a ladle rapid positioning and tilting method for an automatic ferroalloy casting machine, so as to meet the requirement of rapidly and safely completing the operation of molten iron casting preparation.
Disclosure of Invention
In view of the above, the application provides a safe and efficient method capable of accurately positioning and overturning, aiming at the problems of difficult positioning, low efficiency, potential safety hazard and the like of the steel ladle in the current smelting industry, so that the discharge port of the steel ladle can accurately reach the designated position to finish pouring and pouring of materials.
In order to achieve the above purpose, the technical scheme of the application is realized as follows:
a rapid ladle positioning and tipping method for an automatic ferroalloy casting machine specifically comprises the following steps that positioning columns are arranged on opposite sides of a ladle discharge port, and axes of the positioning columns are located on a symmetry plane of the ladle discharge port;
step one, hoisting a ladle filled with molten ferroalloy to a position right above a ladle trolley through a hoisting device, and keeping a distance from the ladle trolley so that a positioning column is positioned in a region which can be clamped by a centering device arranged right behind the ladle trolley, wherein the ladle trolley is positioned at the rear position;
starting a left clamping mechanism and a right clamping mechanism of the centering device to move in opposite directions, clamping the positioning column to enable the steel ladle to rotate, and enabling a discharge hole of the steel ladle to reach a required position when the distance between the left clamping mechanism and the right clamping mechanism is close to the diameter of the positioning column but the positioning column is not clamped;
step three, the left clamping mechanism and the right clamping mechanism of the centering device move back and forth separately, and simultaneously, the ladle falls onto the ladle trolley; then the lifting device is separated from the ladle;
step four, the ladle trolley drives the ladle to move forwards to a front position, so that the ladle trunnion enters into a ladle trunnion bayonet;
step five, starting a hydraulic cylinder of the ladle tipping device to push the ladle tipping device to rotate around a rotating shaft of the ladle tipping device, and enabling the ladle tipping device to drive the ladle to finish tipping action, so that a ferroalloy slow and stable casting process is realized;
step six, after all or part of molten ferroalloy in the ladle is poured, driving the ladle tipping device to reversely rotate, and placing the ladle back on the ladle trolley;
and step seven, the ladle trolley moves backwards to the rear position, and the ladle is lifted off by a lifting device to carry out the next round of working procedure.
Further, the centering device also comprises a frame, an anti-collision shield and a driving mechanism, wherein the anti-collision shield comprises a left anti-collision shield and a right anti-collision shield which are symmetrically and fixedly arranged on two opposite sides of the frame, the driving mechanism is arranged on the frame, the left clamping mechanism and the right clamping mechanism are both arranged on a chain of the driving mechanism, and the driving mechanism drives the left clamping mechanism and the right clamping mechanism to synchronously approach or depart from each other to clamp or loosen a positioning column positioned at the middle position of the tail part of the ladle so as to enable the ladle to rotate towards the center line of the equipment, so that the ladle nozzle is opposite to the opening of the pouring pool; when not in work, the left clamping mechanism and the right clamping mechanism are retracted into the anti-collision shields at the corresponding sides.
Further, actuating mechanism still includes guide rail assembly, driving sprocket, driven sprocket and motor assembly, guide rail assembly is guide rail frame, installs driving shaft and driven shaft respectively at guide rail frame's both ends, installs driving sprocket on the driving shaft, installs driven sprocket on the driven shaft, the chain cooperation is on driving sprocket and driven sprocket, motor assembly installs on guide rail frame, motor assembly drives the driving shaft and rotates, and a guide rail has been seted up respectively to guide rail frame's the surface of two curb plates of relative arrangement, left side fixture and right fixture respectively pass through operation gyro wheel mechanism and anti-shock gyro wheel mechanism cooperation in guide rail frame's guide rail, drive left fixture and right fixture through the operation of chain and realize straight line synchronous reciprocating motion on the guide rail.
Further, the left clamping mechanism and the right clamping mechanism have the same structure and are both in a box-shaped structure, and the guide rail frame penetrates through the box-shaped left clamping mechanism and the box-shaped right clamping mechanism.
Further, the chain includes first chain and second chain, and the one end of first chain passes left fixture's middle part and with driven sprocket meshing back and left fixture's lower part fixed connection with right fixture, the one end of second chain and right fixture's middle part fixed connection, pass right fixture's lower part and with left fixture's lower part fixed connection after the other end and the driving sprocket meshing of second chain.
Further, a plurality of groups of running roller mechanisms and a plurality of groups of anti-impact roller mechanisms are respectively arranged on the sides of the box-shaped left clamping mechanism and the box-shaped right clamping mechanism, which correspond to the guide rails.
Further, two groups of running roller mechanisms and two groups of anti-impact roller mechanisms are symmetrically arranged on each clamping mechanism, and the two groups of anti-impact roller mechanisms are arranged between the two groups of running roller mechanisms.
Further, the running roller mechanism comprises a mounting shaft and a running roller, the mounting shaft is mounted on the corresponding clamping mechanism, and the running roller is matched in the track.
Further, the anti-impact roller mechanism comprises an anti-impact roller and a wheel seat, wherein the anti-impact roller is arranged on the wheel seat, the wheel seat is arranged on the corresponding clamping mechanism, and the wheel surface of the anti-impact roller is propped against the inside of the track.
Further, the centering device is installed on the trolley bracket in a matched mode.
Compared with the prior art, the ladle rapid positioning and tipping method for the ferroalloy automatic casting machine has the following advantages:
1. the axis of the positioning column is parallel or coplanar with the symmetry plane of the steel ladle discharge hole by a method of welding the positioning column at the rear of the steel ladle. Then the positioning column is clamped by the clamping device, and after clamping, no matter how much the included angle between the positioning column and the horizontal direction is, the direction aligned by the steel ladle discharging is the correct direction; the method has the advantages of short process time, high operation efficiency, accurate positioning and no personnel safety problem.
2. After the positioning process is finished, the steel ladle falls to the steel ladle trolley through the lifting device, after the centering device finishes clamping the positioning column, the lifting device withdraws, the steel ladle trolley drives the steel ladle to move to the steel ladle overturning device, the steel ladle overturning device drives the steel ladle to overturn, and the situation that the steel ladle cannot be overturned if the overturning center is positioned right above the bottom surface of the steel ladle occurs, so that the application sets that the overturning center of the steel ladle overturning device is positioned at a position more forward than the bottom surface of the steel ladle to realize smooth overturning of the steel ladle. The turnover device has the function of driving the steel ladle to turn over, and the turnover speed can be controlled. After all the materials are poured, the turning device drives the steel ladle to return to the steel ladle trolley, the trolley drives the steel ladle to move to a designated position, and the lifting device is used for transferring the steel ladle to other positions for carrying out next material carrying; the method has the advantages of saving the number of workers, avoiding the safety problem of personnel, saving a lifting device, along with high working efficiency, accurate position of a discharge hole, uniform material flow speed, high stability and the like.
3. The whole quick positioning process of the centering device is controlled by a program, the electromechanical system and the electric system are matched to work, and the synchronous opening and closing actions of the holding mechanism are realized through the operation of the motor, so that the quick positioning function of the center line of the steel ladle and the center line of the equipment is realized, and the centering device has the characteristics of ingenious structure and high mechanization degree;
4. according to the application, the circumferential rotation and positioning movement of the ladle are skillfully realized through linear movement, the purpose of rapidly positioning the ladle is fulfilled, the manual labor is saved, and the accuracy of the molten iron flow direction during pouring of the ladle is ensured, so that the preparation work efficiency of pouring operation is improved;
5. the application has reasonable structural design, is convenient to install and disassemble, can be used by simple training of operators, and is suitable for popularization and use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic diagram of a ladle quick positioning and tipping process for a ferroalloy automatic casting machine;
FIG. 2 is a front view of a centering device according to an embodiment of the present application;
FIG. 3 is a top view of a centering device according to an embodiment of the present application;
FIG. 4 is a front view of the centering device with the crash shield and frame removed in accordance with an embodiment of the application;
FIG. 5 is a top view of the centering device with the crash shield and frame removed in accordance with an embodiment of the application;
FIG. 6 is a schematic diagram of the left and right clamping mechanisms connected to a chain;
FIG. 7 is a diagram illustrating the process of correcting the attitude of a ladle by the centering device of the present application;
fig. 8 is a schematic view illustrating the process of correcting the posture of the ladle by the centering device of the present application under another angle.
Reference numerals illustrate:
A. ladle trolley; B. a centering device; C. a ladle tipping device; D. ladle trunnion bayonet; E. a hydraulic cylinder; F. a rotating shaft;
1. a frame; 2. a left anti-collision shield; 3. a left clamping mechanism; 4. a right clamping mechanism; 5. a driving mechanism; 6. a right anti-collision shield; 7. a drive sprocket; 8. a driven sprocket; 9. a motor assembly; 10. a driving shaft; 11. a driven shaft; 12. operating a roller mechanism; 13. an anti-impact roller mechanism; 14. a first chain; 15. a second chain; 16. a mounting shaft; 17. running rollers; 18. an anti-impact wheel; 19. a wheel seat; 20. ladle; 21. positioning columns; 23. a guide rail assembly; 24. and (3) a chain.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
The application will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1, a ladle rapid positioning and tipping method for a ferroalloy automatic casting machine, specifically comprises the following steps,
the ladle side wall and the bottom surface are of a multi-layer structure, two ends of the upper part of the side wall are respectively provided with an extending trunnion, the lower part of the side wall is provided with two hanging rings, and the upper edge of the side wall is provided with a discharge hole;
a positioning column 21 is arranged on the opposite side of the steel ladle discharge hole, the axis of the positioning column 21 is positioned on the symmetrical surface of the steel ladle discharge hole, the outer diameter of the positioning column 21 is 80mm, and the length is 500-600mm;
step one, because the lifting device cannot fix the rotation angle of the ladle, a certain included angle is formed between the ladle positioning column and the front-rear direction at the moment, the included angle is generally not more than +/-15 degrees, the ladle 20 filled with molten iron alloy is lifted to the position right above the ladle trolley A by the lifting device, and the ladle positioning column is located in a region which is arranged right behind the ladle trolley A and can be clamped by the centering device B, and the initial distance between the left clamping mechanism and the right clamping mechanism meets the requirement of being capable of clamping the positioning column 21, so that the ladle trolley A is located in the rear position; the lifting device is characterized in that a general crown block is matched with two lifting hooks;
step two, the initial distance between the left clamping mechanism 3 and the right clamping mechanism 4 is 1300mm, the left clamping mechanism 3 and the right clamping mechanism 4 of the centering device B are started to move in opposite directions to clamp the positioning column 21 so that the ladle rotates in the falling process, and when the distance between the left clamping mechanism 3 and the right clamping mechanism 4 is 85mm, the discharge hole of the ladle reaches the required position;
step three, the left clamping mechanism and the right clamping mechanism of the centering device B move back and forth separately and are respectively retracted into the left anti-collision shield and the right anti-collision shield, so that the steel ladle 20 is prevented from striking the left clamping mechanism and the right clamping mechanism when the steel ladle is hoisted next time; meanwhile, the ladle 20 falls onto the ladle carriage a; the lifting device is then disengaged from the ladle 20;
step four, the ladle trolley A drives the ladle 20 to move forwards to a front position, so that the ladle trunnion enters a ladle trunnion bayonet D;
step five, a hydraulic cylinder E of a ladle tipping device C is started to push the ladle tipping device C to rotate around a rotating shaft F of the ladle tipping device, the ladle tipping device C drives a ladle 20 to finish tipping action, and the speed of molten ferroalloy flowing out of a ladle discharge hole can be controlled by controlling the extending speed of the hydraulic cylinder, so that the slow and stable casting process of the ferroalloy is realized;
step six, after all or part of molten ferroalloy in the ladle is poured, driving the ladle tipping device C to reversely rotate, and placing the ladle 20 back on the ladle trolley A;
and step seven, the ladle trolley A moves backwards to the rear position, and the ladle 20 is lifted off by a lifting device to carry out the next round of working procedure.
The ladle is hoisted to the position right above the trolley by the hoisting device, and before the ladle falls onto the trolley, the centering device performs centering clamping action on the positioning column, so that the symmetry plane of the discharge opening is positioned on a required plane. In the process of clamping the centering device, the centering device cannot clamp the positioning column because the ladle does not completely fall onto the trolley, and then the lifting device falls the ladle onto the upper surface of the trolley. At this time, the centering device can be separated, and the clamping of the positioning column is canceled. At this time, the symmetry plane of the discharge port is located on the required vertical plane. In order to meet this requirement, the symmetry plane of the trolley is the required symmetry plane, namely the symmetry plane of the centering device.
In order to ensure that the axis of the positioning column is coplanar or parallel to the symmetry plane of the discharge hole, the positioning column is newly prepared for the steel ladle with increased deformation after being used for a period of time so as to ensure the accuracy of steel ladle positioning.
As shown in fig. 2-8, the centering device B further includes a frame 1, an anti-collision shield and a driving mechanism 5, the anti-collision shield includes a left anti-collision shield 2 and a right anti-collision shield 6 symmetrically fixed on opposite sides of the frame 1, the driving mechanism 5 is mounted on the frame 1, the left clamping mechanism 3 and the right clamping mechanism 4 are both mounted on a chain 24 of the driving mechanism 5, and the driving mechanism 5 drives the left clamping mechanism 3 and the right clamping mechanism 4 to synchronously approach or separate to clamp or loosen a positioning column 21 located at a middle position of a tail of the ladle 20 so as to enable the ladle 20 to rotate towards a center line of the device, thereby enabling a nozzle of the ladle 20 to be opposite to an opening of a pouring pool; when not working, the left clamping mechanism 3 and the right clamping mechanism 4 are retracted into the anti-collision shields at the corresponding sides; when the anti-collision shield prevents the crown block from being unstable, the ladle shakes to crash the left clamping mechanism 3 and the right clamping mechanism 4, and the centering device B is matched and installed on the trolley bracket.
The driving mechanism 5 further comprises a guide rail assembly 23, a driving sprocket 7, a driven sprocket 8 and a motor assembly 9, the guide rail assembly 23 is a guide rail frame, a driving shaft 10 and a driven shaft 11 are respectively installed at two ends of the guide rail frame, the driving sprocket 7 is installed on the driving shaft 10, the driven sprocket 8 is installed on the driven shaft 11, the driving sprocket 7 and the driven sprocket 8 are matched with chains, the motor assembly 9 is installed on the guide rail frame, the motor assembly 9 drives the driving shaft 10 to rotate, a guide rail is respectively arranged on the outer surfaces of two oppositely arranged side plates of the guide rail frame, and the left clamping mechanism 3 and the right clamping mechanism 4 are respectively matched in the guide rail of the guide rail frame through a running roller mechanism 12 and an anti-impact roller mechanism 13, and the left clamping mechanism 3 and the right clamping mechanism 4 are driven to realize linear synchronous reciprocating motion on the guide rail through the running of the chains.
The left clamping mechanism 3 and the right clamping mechanism 4 have the same structure and are in box-shaped structures, and the guide rail frame penetrates through the box-shaped left clamping mechanism 3 and the box-shaped right clamping mechanism 4.
The chain 24 comprises a first chain 14 and a second chain 15, one end of the first chain 14 is fixedly connected with the middle part of the right clamping mechanism 4, the other end of the first chain 14 passes through the middle part of the left clamping mechanism 3 and is fixedly connected with the lower part of the left clamping mechanism 3 after being meshed with the driven sprocket 8, one end of the second chain 15 is fixedly connected with the middle part of the right clamping mechanism 4, and the other end of the second chain 15 passes through the lower part of the right clamping mechanism 4 and is fixedly connected with the lower part of the left clamping mechanism 3 after being meshed with the driving sprocket 7.
A plurality of groups of running roller mechanisms 12 and a plurality of groups of impact-resistant roller mechanisms 13 are respectively arranged on the sides of the box-shaped left clamping mechanism 3 and the box-shaped right clamping mechanism 4, which correspond to the guide rails. The method specifically comprises the following steps: two groups of running roller mechanisms 12 and two groups of anti-impact roller mechanisms 13 are symmetrically arranged on each clamping mechanism, and the two groups of anti-impact roller mechanisms 13 are arranged between the two groups of running roller mechanisms 12. The running roller mechanism 12 comprises a mounting shaft 16 and running rollers 17, the mounting shaft 16 is mounted on a corresponding clamping mechanism, and the running rollers 17 are matched in a track. The anti-impact roller mechanism 13 comprises an anti-impact roller 18 and a wheel seat 19, wherein the anti-impact roller 18 is arranged on the wheel seat 19, the wheel seat 19 is arranged on a corresponding clamping mechanism, and the wheel surface of the anti-impact roller 18 abuts against the inside of the track. The running roller mechanism 12 is used for moving the clamping mechanism, and the impact-resistant roller mechanism is used for resisting impact when the steel ladle collides with the clamping mechanism.
The left clamping mechanism and the right clamping mechanism are mounted on the guide rail assembly through the running roller mechanism and the anti-impact roller mechanism, the chains are respectively mounted on the left clamping mechanism and the right clamping mechanism, and the motor assembly and the chain wheel drive the chains to drive the left clamping mechanism and the right clamping mechanism to realize synchronous and opposite running along the guide rail assembly, so that clamping action is realized, and the ladle rapid positioning function is completed; specifically, the motor assembly 9 drives the driving shaft 10 to rotate, the driving shaft 10 drives the driving sprocket 7 to rotate, and the chain 24 on the driving sprocket 7 moves, so that the left clamping mechanism 3 and the right clamping mechanism 4 are driven to synchronously approach or separate along the guide rail, and the positioning column 21 is clamped or loosened. Because the whole steel ladle falling process is carried out through a travelling crane, the sling of the travelling crane belongs to a flexible mechanism, the impact on the device caused by shaking of the steel ladle is difficult to avoid, the impact force is mainly born by an anti-impact roller mechanism, and the impact force is transmitted to the equipment rack through a guide rail component.
When the crane sling suspends the ladle, the ladle mouth and the central line form an included angle theta, the left clamping mechanism and the right clamping mechanism of the device synchronously move inwards under the action of the motor component and the chain, the left clamping mechanism and the right clamping mechanism clamp the ladle tail positioning column 21, so that the ladle tail positioning column rotates towards the central line of the equipment, the included angle theta is eliminated, and after the ladle falls on the ladle trolley, the ladle central line and the central line of the equipment coincide, and the correct molten iron flow direction during pouring is ensured.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the application.

Claims (10)

1. A ladle rapid positioning and tipping method for an automatic ferroalloy casting machine is characterized in that: in particular comprising the following steps of the method,
positioning columns are arranged on the opposite sides of the steel ladle discharge port, and the axes of the positioning columns are positioned on the symmetrical surfaces of the steel ladle discharge port;
step one, hoisting a ladle filled with molten ferroalloy to a position right above a ladle trolley through a hoisting device, and keeping a distance from the ladle trolley so that a positioning column is positioned in a region which can be clamped by a centering device arranged right behind the ladle trolley, wherein the ladle trolley is positioned at the rear position;
starting a left clamping mechanism and a right clamping mechanism of the centering device to move in opposite directions, clamping the positioning column to enable the steel ladle to rotate, and enabling a discharge hole of the steel ladle to reach a required position when the distance between the left clamping mechanism and the right clamping mechanism is close to the diameter of the positioning column but the positioning column is not clamped;
step three, the left clamping mechanism and the right clamping mechanism of the centering device move back and forth separately, and simultaneously, the ladle falls onto the ladle trolley; then the lifting device is separated from the ladle;
step four, the ladle trolley drives the ladle to move forwards to a front position, so that the ladle trunnion enters into a ladle trunnion bayonet;
step five, starting a hydraulic cylinder of the ladle tipping device to push the ladle tipping device to rotate around a rotating shaft of the ladle tipping device, and enabling the ladle tipping device to drive the ladle to finish tipping action, so that a ferroalloy slow and stable casting process is realized;
step six, after all or part of molten ferroalloy in the ladle is poured, driving the ladle tipping device to reversely rotate, and placing the ladle back on the ladle trolley;
and step seven, the ladle trolley moves backwards to the rear position, and the ladle is lifted off by a lifting device to carry out the next round of working procedure.
2. The method for rapidly positioning and tipping a ladle in an automatic ferroalloy casting machine according to claim 1, wherein the method comprises the following steps: the centering device further comprises a frame (1), an anti-collision shield and a driving mechanism (5), wherein the anti-collision shield comprises a left anti-collision shield (2) and a right anti-collision shield (6) which are symmetrically fixedly arranged on two opposite sides of the frame (1), the driving mechanism (5) is arranged on the frame (1), the left clamping mechanism (3) and the right clamping mechanism (4) are arranged on a chain (24) of the driving mechanism (5), the driving mechanism (5) drives the left clamping mechanism (3) and the right clamping mechanism (4) to be synchronously close to or far away from each other to clamp or loosen a positioning column (21) positioned at the middle position of the tail of the ladle (20) so that the ladle (20) rotates towards the center line of the equipment, and therefore the mouth of the ladle (20) is just opposite to the opening of the pouring pool.
3. The ladle rapid positioning and tipping method for the ferroalloy automatic casting machine according to claim 2, wherein the ladle rapid positioning and tipping method comprises the following steps: the driving mechanism (5) further comprises a guide rail assembly (23), a driving sprocket (7), a driven sprocket (8) and a motor assembly (9), the guide rail assembly (23) is a guide rail frame, a driving shaft (10) and a driven shaft (11) are respectively installed at two ends of the guide rail frame, the driving sprocket (7) is installed on the driving shaft (10), the driven sprocket (8) is installed on the driven shaft (11), a chain is matched with the driving sprocket (7) and the driven sprocket (8), the motor assembly (9) is installed on the guide rail frame, the motor assembly (9) drives the driving shaft (10) to rotate, a guide rail is respectively arranged on the outer surfaces of two oppositely arranged side plates of the guide rail frame, and the left clamping mechanism (3) and the right clamping mechanism (4) are matched in the guide rail of the guide rail frame through a running roller mechanism (12) and an anti-impact roller mechanism (13) respectively and drive the left clamping mechanism (3) and the right clamping mechanism (4) to realize linear synchronous reciprocating motion on the guide rail through the running of the chain.
4. A ladle rapid positioning and tipping method for a ferroalloy automatic casting machine according to claim 3, wherein: the left clamping mechanism (3) and the right clamping mechanism (4) are the same in structure and are of box-shaped structures, and the guide rail frame penetrates through the box-shaped left clamping mechanism (3) and the box-shaped right clamping mechanism (4).
5. A ladle rapid positioning and tipping method for a ferroalloy automatic casting machine according to claim 3, wherein: the chain (24) comprises a first chain (14) and a second chain (15), one end of the first chain (14) is fixedly connected with the middle part of the right clamping mechanism (4), the other end of the first chain (14) penetrates through the middle part of the left clamping mechanism (3) and is fixedly connected with the lower part of the left clamping mechanism (3) after being meshed with the driven sprocket (8), one end of the second chain (15) is fixedly connected with the middle part of the right clamping mechanism (4), and the other end of the second chain (15) penetrates through the lower part of the right clamping mechanism (4) and is fixedly connected with the lower part of the left clamping mechanism (3) after being meshed with the driving sprocket (7).
6. The method for rapidly positioning and tipping a ladle in an automatic ferroalloy casting machine according to claim 5, wherein the method comprises the following steps: a plurality of groups of running roller mechanisms (12) and a plurality of groups of anti-impact roller mechanisms (13) are respectively arranged on the sides of the box-shaped left clamping mechanism (3) and the box-shaped right clamping mechanism (4) corresponding to the guide rails.
7. The method for rapidly positioning and tipping a ladle in an automatic ferroalloy casting machine according to claim 6, wherein: two groups of running roller mechanisms (12) and two groups of anti-impact roller mechanisms (13) are symmetrically arranged on each clamping mechanism, and the two groups of anti-impact roller mechanisms (13) are arranged between the two groups of running roller mechanisms (12).
8. The method for rapidly positioning and tipping a ladle in an automatic ferroalloy casting machine according to claim 6, wherein: the running roller mechanism (12) comprises a mounting shaft (16) and running rollers (17), the mounting shaft (16) is mounted on the corresponding clamping mechanism, and the running rollers (17) are matched in the track.
9. The method for rapidly positioning and tipping a ladle in an automatic ferroalloy casting machine according to claim 6, wherein: the anti-impact roller mechanism (13) comprises an anti-impact roller (18) and a wheel seat (19), wherein the anti-impact roller (18) is arranged on the wheel seat (19), the wheel seat (19) is arranged on a corresponding clamping mechanism, and the wheel surface of the anti-impact roller (18) is propped against the inside of the track.
10. A ladle rapid positioning and tipping method for a ferroalloy automatic casting machine according to any one of claims 1-9, characterized in that: the centering device (B) is arranged on the trolley bracket in a matching way.
CN202210269959.XA 2022-03-18 2022-03-18 Ladle rapid positioning and tipping method for ferroalloy automatic casting machine Pending CN116786805A (en)

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CN202210269959.XA CN116786805A (en) 2022-03-18 2022-03-18 Ladle rapid positioning and tipping method for ferroalloy automatic casting machine

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CN202210269959.XA CN116786805A (en) 2022-03-18 2022-03-18 Ladle rapid positioning and tipping method for ferroalloy automatic casting machine

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CN116786805A true CN116786805A (en) 2023-09-22

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