Steel ladle argon automatic plugging device with steel slag cleaning function

Abstract

The utility model belongs to the technical field of converter steelmaking, and particularly discloses a steel ladle argon automatic plugging device with a steel slag cleaning function, which comprises a steel vehicle, a steel ladle and a steel ladle joint, saddle seats are arranged on two sides of the top of the steel vehicle, and steel vehicle joints for plugging the steel ladle joint are arranged on the saddle seats. An argon main pipe used for conveying argon to the steel vehicle connector is arranged on the steel vehicle, the argon main pipe is communicated with two purging pipes respectively, one end of each purging pipe is provided with a purging connector, and the purging connectors are detachably connected to the two sides of the saddle respectively. In the argon blowing process of a steel ladle, steel slag on the surface of the steel ladle falls onto a base of a steel car joint, so that argon cannot be communicated, and the argon blowing operation is interrupted. The purging pipe and the purging connector are arranged, so that steel slag on the base of the steel car connector can be effectively cleaned, interference of steel slag accumulation on alignment of the steel ladle connector and the steel car connector is avoided, and stable argon communication is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to converter steelmaking technical field, concretely relates to a ladle argon automatic plug device with the function of cleaning steel slag. BACKGROUND

[0002] In the steel production process, the argon blowing of the ladle is the most critical link, and the argon plug operation depends on manual operation, which not only makes the labor intensity of workers high and the operation precision difficult to guarantee, but also is accompanied by high safety hazards. Therefore, in order to protect the safety of personnel and reduce the labor load of workers, the automatic plug argon blowing structure is used to complete the argon blowing.

[0003] The argon blowing joint in the automatic plug argon blowing structure includes a ladle joint and a steel car joint, wherein the ladle joint is a flat steel plate connected with the trunnion box of the ladle, and the steel car joint is composed of a sealing ring, an upper and lower telescopic compensation spring and a base connected with the saddle of the steel car. The working principle of the ladle argon blowing is as follows: the ladle is lifted by the crane to the upper side of the steel car, then the ladle joint and the steel car joint are aligned, and then the ladle is placed on the saddle, the steel car joint and the ladle joint are connected, the argon gas is introduced into the ladle, and the argon blowing operation is performed.

[0004] However, it is found that during the argon blowing of the ladle, the steel slag remaining on the surface of the ladle will fall onto the base of the steel car joint, the amount of the falling steel slag is not large, but the powder proportion is high, and as the accumulation gradually increases, it will interfere with the accurate alignment of the ladle joint and the steel car joint, and when the height of the accumulated slag is too high, the argon gas cannot be connected, which causes the interruption of the argon blowing operation. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a ladle argon automatic plug device with the function of cleaning steel slag, so as to solve the problem that during the argon blowing of the ladle, the steel slag on the surface of the ladle falls onto the base of the steel car joint, which will interfere with the accurate alignment of the ladle joint and the steel car joint, and even the argon gas cannot be connected, which causes the interruption of the argon blowing operation.

[0006] In order to achieve the above-mentioned purpose, the basic scheme provided by the utility model is as follows: a ladle argon automatic plug device with the function of cleaning steel slag, which comprises a steel car, a ladle and a ladle joint, the ladle joint is located at the bottom of the trunnion seat of the ladle, the top of the steel car is provided with a saddle on both sides, the saddle on one side of the steel car is provided with a steel car joint for plugging and unplugging the ladle joint, the steel car is provided with an argon main pipe for conveying argon gas to the steel car joint, the argon main pipe is respectively connected with two purge pipes, one end of each purge pipe is provided with a purge joint, the two purge joints are respectively detachably connected to the two sides of the saddle, the purge pipe is provided with a valve, the bottom of the steel car is provided with a moving wheel, and the steel car is provided with a motor for driving the moving wheel.

[0007] The working principle of the utility model lies in: a ladle argon automatic plug device with steel slag cleaning function, when argon blowing is needed, first, the ladle is lifted to the top of the trolley by the crane, then the ladle is lowered by the crane and placed on the trolley, thus the plug operation of the ladle joint and the trolley joint is completed.

[0008] The utility model has the advantages that: through the setting of the blowing pipe and the blowing joint, the steel slag on the trolley joint base can be effectively cleaned, the interference of the steel slag accumulation on the alignment of the ladle joint and the trolley joint is avoided, the stable connection of the argon is ensured, the interruption of the argon blowing operation is prevented, and the continuity and stability of the steel production are effectively ensured.

[0009] Scheme two, this is the preferred embodiment of the basic scheme, each said saddle is provided with a limiting plate for limiting the front and back movement of the ladle trunnion base; the limiting plate is arranged on the saddle, which can prevent deviation when the ladle joint and the trolley joint are aligned, thereby effectively improving the reliability of argon blowing.

[0010] Scheme three, this is the preferred embodiment of the basic scheme, the top of the limiting plate is arc-shaped; the top of the limiting plate is arc-shaped, which can prevent the trolley trunnion base from being placed on the top of the limiting plate during the descending process.

[0011] Scheme four, this is the preferred embodiment of the basic scheme, the front end face of the trolley is provided with an infrared range finder, the motor is electrically connected with a PLC controller, and the infrared range finder is electrically connected with the PLC controller; the parking position of the trolley is controlled by manual, and deviation may occur during the driving process, so that the trolley joint and the ladle joint may deviate slightly, which may cause the lower joint sealing ring to be damaged and leak frequently, the infrared range finder is arranged, the limiting distance is set on the PLC controller, and the driving motor of the trolley is interlocked, so that the trolley can be parked accurately, the damage probability of the sealing ring is greatly reduced, and the replacement frequency of the sealing ring is reduced.

[0012] Scheme five, this is the preferred embodiment of the basic scheme, the valve is a regulating valve; the regulating valve can flexibly adjust the argon pressure of the blowing pipe according to the actual amount of steel slag, and appropriate blowing force can be provided when the steel slag is cleaned, so that the steel slag can be effectively removed.

[0013] Scheme six, this is the preferred basic scheme, the argon blowing port of the purge connector is flat; the argon blowing port of the purge connector is arranged to be flat, compared with the traditional circular argon blowing port, the flat argon blowing port can produce a wider blowing gas flow coverage at the same gas flow, enhance the cleaning effect of the steel ladle connector base steel slag, improve the cleaning efficiency.

[0014] Scheme seven, this is the preferred basic scheme, the saddle is provided with a clamp for sleeving the purge connector; the saddle is connected with the purge connector through the clamp, which facilitates the installation and disassembly of the purge connector. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the argon automatic plug-in device for the steel ladle with the function of cleaning the steel slag of the utility model;

[0016] Figure 2 is Figure 1 is an enlarged view of A in the figure;

[0017] Figure 3 is a partial sectional view of the argon automatic plug-in device for the steel ladle with the function of cleaning the steel slag of the utility model;

[0018] Figure 4 is a structure schematic view of the steel ladle hoisting above the steel car in the argon automatic plug-in device for the steel ladle with the function of cleaning the steel slag of the utility model;

[0019] Figure 5 is a left view of the steel ladle placed on the steel car in the argon automatic plug-in device for the steel ladle with the function of cleaning the steel slag of the utility model. DETAILED DESCRIPTION

[0020] The utility model will be further explained in detail by specific implementation ways as follows:

[0021] The reference signs in the drawings of the specification include: 1: steel car; 101: saddle; 102: steel car connector; 103: argon main pipe; 104: purge pipe; 105: purge connector; 106: valve; 107: limiting plate; 108: infrared range finder; 109: clamp; 2: steel ladle; 201: steel ladle connector.

[0022] As Figures 1 to 5The device is shown as follows: a ladle argon automatic plug device with a steel slag cleaning function, comprising a steel car 1, a ladle 2 and a ladle joint 201, the ladle joint 201 is located at the bottom of the trunnion seat of the ladle 2, the top of the steel car 1 is fixedly connected with a saddle 101 on both sides, the saddle 101 on one side of the steel car 1 is provided with a steel car joint 102 for plugging and unplugging the ladle joint 201, the steel car 1 is provided with an argon main pipe 103 for conveying argon to the steel car joint 102, two purge pipes 104 are respectively communicated on the argon main pipe 103, one end of each purge pipe 104 is threadedly connected with a purge joint 105, the argon blowing port of the purge joint 105 is flat, the two purge joints 105 are connected to the two sides of the saddle 101 through a clamp 109, the two purge joints 105 are respectively located on the two sides of the steel car joint 102, the purge pipe 104 is provided with a valve 106, the valve 106 is an adjusting valve, the bottom of the steel car 1 is provided with a moving wheel, the steel car 1 is provided with a motor for driving the moving wheel, the front end face of the steel car 1 is provided with an infrared range finder 108, the motor is electrically connected with a PLC controller, the infrared range finder 108 is electrically connected with the PLC controller, each saddle 101 is provided with a limiting plate 107 for limiting the forward and backward movement of the trunnion seat of the ladle 2, the top of the limiting plate 107 is arc-shaped.

[0023] The implementation of the embodiment is that when the ladle needs to be argon blown, first, the infrared range finder 108 and the motor are started, the infrared range finder 108 measures the distance between the steel car 1 and the anti-collision stop head of the steel car 1, when the distance measured by the infrared range finder 108 is the same as the distance set by the PLC controller in advance, the PLC controller stops the motor, so that the steel car 1 stops moving, then the crane hoists the ladle 2 to the top of the steel car 1, and then the crane lowers the ladle 2, and the distance between the trunnion seat of the ladle 2 and the limiting plate 107 is observed, when the bottom of the trunnion seat of the ladle 2 touches the arc-shaped surface at the top of the limiting plate 107, the crane completely places the ladle 2 on the steel car 1, at this time, the trunnion seat of the ladle 2 slides along the arc-shaped surface and is placed on the saddle 101, so as to complete the plugging and unplugging operation of the ladle joint 201 and the steel car joint 102.

[0024] When the bottom of the base of the steel car joint 102 is accumulated with steel slag before the ladle 2 is placed, the valve 106 on the purge pipe 104 is opened by hand, the argon in the argon main pipe 103 is blown out from the flat argon blowing port of the purge joint 105 through the purge pipe 104, so as to clean the base of the steel car joint 102, after the cleaning is completed, the valve 106 is closed.

[0025] The above only is the embodiment of the present application, and the well-known specific structure and characteristics and other common knowledge in the scheme are not described too much here. It should be pointed out that, for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A ladle argon automatic plug device with a function of cleaning steel slag, characterized in that, The application relates to a steel ladle trolley (1), a ladle (2) and a ladle connector (201), wherein the ladle connector (201) is arranged at the bottom of a trunnion seat of the ladle (2), the top of the steel ladle trolley (1) is provided with saddle seats (101) on both sides, the saddle seat (101) on one side of the steel ladle trolley (1) is provided with a steel ladle trolley connector (102) for plugging and unplugging the ladle connector (201), the steel ladle trolley (1) is provided with an argon main pipe (103) for supplying argon to the steel ladle trolley connector (102), two purge pipes (104) are respectively communicated with the argon main pipe (103), one end of each of the purge pipes (104) is provided with a purge connector (105), the two purge connectors (105) are respectively detachably connected to the two sides of the saddle seat (101), the purge pipe (104) is provided with a valve (106), the bottom of the steel ladle trolley (1) is provided with moving wheels, and the steel ladle trolley (1) is provided with a motor for driving the moving wheels.

2. The ladle argon automatic plug device with the function of cleaning the steel slag according to claim 1, characterized in that, Each of the saddle seats (101) is provided with a limiting plate (107) for limiting the front and back movement of the trunnion seat of the ladle (2).

3. The ladle argon automatic plug device with the function of cleaning the steel slag according to claim 2, characterized in that, The top of the limiting plate (107) is arc-shaped.

4. The ladle argon automatic plug device with the function of cleaning the steel slag according to claim 1, characterized in that, The front end surface of the steel ladle trolley (1) is provided with an infrared range finder (108), the motor is electrically connected with a PLC controller, and the infrared range finder (108) is electrically connected with the PLC controller.

5. The ladle argon automatic plug device with the function of cleaning the steel slag according to claim 1, characterized in that, The valve (106) is an adjusting valve.

6. The ladle argon automatic plug device with the function of cleaning the steel slag according to claim 1, characterized in that, The argon blowing port of the purge connector (105) is flat.

7. The ladle argon automatic plug device with the function of cleaning the steel slag according to claim 1, characterized in that, The saddle seat (101) is bolted with a clamp (109) for sleeving the purge connector (105).

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