Horizontal type automatic bottom argon blowing device for converter steel ladle

Abstract

The utility model discloses a horizontal type automatic bottom argon blowing device for a converter steel ladle, which comprises a steel ladle gas pipe, a metal hose, a receiving device, a cylinder transmitting device and a buggy ladle gas pipe, the steel ladle gas pipe is arranged at the middle lower part of the steel ladle and is divided into two paths to be connected with a gas permeable brick at the bottom of the steel ladle; the receiving device is arranged on the side surface of a trunnion seat of the steel ladle; a metal hose is arranged between the steel ladle gas pipe and the receiving device; a bowl opening seat is arranged at the front end of the receiving device; the air cylinder launching device is arranged on a saddle of the buggy ladle; a bowl opening of a bowl opening seat body of the receiving device is opposite to an air cylinder ball head of the air cylinder transmitting device; the horizontal center line of the receiving device coincides with the horizontal center line of the air cylinder transmitting device. The buggy ladle gas pipe is arranged on the buggy ladle; a metal hose is arranged between the air cylinder launching device and the buggy ladle air pipe. The horizontal automatic bottom argon blowing device is simple in structure, convenient to install, reliable in operation and capable of achieving horizontal automatic bottom argon blowing of the converter steel ladle.

Description

TECHNICAL FIELD

[0001] The utility model belongs to metallurgical equipment technical field, further belongs to steel converter equipment technical field, and specifically relates to a converter ladle horizontal automatic bottom argon blowing device which is simple in structure, easy to install and reliable in operation. BACKGROUND

[0002] The bottom argon (nitrogen) blowing of the converter ladle is an indispensable link for improving the quality of molten steel. The bottom argon blowing of the converter ladle is to blow argon into the ladle from the bottom of the ladle after the molten steel is discharged into the ladle. By controlling the pressure and time of argon blowing, the molten steel is boiled and refined, the chemical reaction is accelerated, the harmful gas and inclusions are removed, the composition and temperature uniformity of the molten steel are improved, and the inclusions in the molten steel effectively float up, thereby improving the quality of the casting blank. In the current steelmaking operation, the bottom argon blowing operation adopts manual docking and automatic docking. The manual operation adopts a quick connector to dock and blow argon. The operator needs to plug and unplug the hose in the high-temperature danger zone, which is easy to cause the molten steel to splash and fly out to cause safety accidents, and also easy to cause the ladle to turn over and burn the argon blowing pipeline. The automatic docking adopts a vertical docking mode, mainly including a flat plate type automatic docking device and a cylinder type automatic docking device. The flat plate type automatic docking device has the problems of low correction amplitude and easy accumulation of steel slag and other impurities on the upper plane, which leads to poor docking effect and gas leakage. Moreover, the sealing ring on the docking bottom plate installed on the saddle of the ladle car is directly exposed outside, which is easy to be burned by the steel slag and damaged by the ladle, and has a high failure rate. The vertical cylinder automatic docking device avoids the shortcomings of the flat plate type docking device, but it is vertically installed on the saddle of the ladle car. When the ladle is placed on the ladle car, it is easy to collide with the ladle. In order to align the ladle, the placement speed is not high. Moreover, because of the vertical installation, the self-weight of the cylinder needs to be solved before the successful docking and blowing of the argon, which has a certain lower limit range of the pressure of the argon, which is not conducive to the low-pressure soft blowing of the molten steel. Therefore, the research and development of a converter ladle horizontal automatic bottom argon blowing device which is simple in structure, easy to install and reliable in operation is the key to solve this problem. CONTENT OF THE UTILITY MODEL

[0003] The utility model is simple in structure, easy to install and reliable in operation.

[0004] The utility model discloses a steel ladle gas pipe, metal hose, receiving device, pneumatic cylinder launching device, steel ladle car gas pipe, the steel ladle gas pipe sets up in the lower part of steel ladle, and is connected with the bottom air brick of steel ladle in two ways, the receiving device sets up in the trunnion seat side of steel ladle, metal hose is arranged between the steel ladle gas pipe and receiving device, the bowl mouth seat is arranged to the front of receiving device, the pneumatic cylinder launching device sets up on the saddle of steel ladle car, the bowl mouth of the bowl mouth seat body of receiving device is opposite the pneumatic cylinder ball head of pneumatic cylinder launching device, the horizontal center line of receiving device and the horizontal center line of pneumatic cylinder launching device coincide, the steel ladle car gas pipe sets up on steel ladle car, metal hose is arranged between the pneumatic cylinder launching device and steel ladle car gas pipe.

[0005] The utility model discloses a steel ladle gas pipe, metal hose, receiving device, pneumatic cylinder launching device, steel ladle car gas pipe constitute, the inside copper sealing bush and high temperature resistant rubber seal cover of receiving device are provided, for after ball head contact can effectively seal, prevent gas leakage, the inside steel filter screen of receiving device is provided, can prevent sundries and enter the hole and block the gas pipe, the upper end of spring support sets up U type groove, and U type groove and cylinder body are between movable connection, and the convenient cylinder replacement operation is carried out, sets up universal spring between end cover and fixed installation flange, when the ball head of cylinder is inserted into the bowl mouth inside receiving device, can automatic deviation rectification universal centering, the inside return spring of cylinder body, its effect is in, after sending gas, the gas of cylinder body is discharged, and return spring is automatically retracted with ball head and cylinder and retracts the original position, the cylinder is wrapped by the box of steel sheet, avoids the cylinder to be scalded by steel slag or molten steel, also avoids being hit by the steel ladle and placing.

[0006] The utility model discloses a steel ladle gas pipe, metal hose, receiving device, pneumatic cylinder launching device, steel ladle car gas pipe constitute, the inside copper sealing bush and high temperature resistant rubber seal cover of receiving device are provided, for after ball head contact can effectively seal, prevent gas leakage, the inside steel filter screen of receiving device is provided, can prevent sundries and enter the hole and block the gas pipe, the upper end of spring support sets up U type groove, and U type groove and cylinder body are between movable connection, and the convenient cylinder replacement operation is carried out, sets up universal spring between end cover and fixed installation flange, when the ball head of cylinder is inserted into the bowl mouth inside receiving device, can automatic deviation rectification universal centering, the inside return spring of cylinder body, its effect is in, after sending gas, the gas of cylinder body is discharged, and return spring is automatically retracted with ball head and cylinder and retracts the original position, the cylinder is wrapped by the box of steel sheet, avoids the cylinder to be scalded by steel slag or molten steel, also avoids being hit by the steel ladle and placing.

[0007] The utility model discloses a steel ladle gas pipe, metal hose, receiving device, pneumatic cylinder launching device, steel ladle car gas pipe constitute, the inside copper sealing bush and high temperature resistant rubber seal cover of receiving device are provided, for after ball head contact can effectively seal, prevent gas leakage, the inside steel filter screen of receiving device is provided, can prevent sundries and enter the hole and block the gas pipe, the upper end of spring support sets up U type groove, and U type groove and cylinder body are between movable connection, and the convenient cylinder replacement operation is carried out, sets up universal spring between end cover and fixed installation flange, when the ball head of cylinder is inserted into the bowl mouth inside receiving device, can automatic deviation rectification universal centering, the inside return spring of cylinder body, its effect is in, after sending gas, the gas of cylinder body is discharged, and return spring is automatically retracted with ball head and cylinder and retracts the original position, the cylinder is wrapped by the box of steel sheet, avoids the cylinder to be scalded by steel slag or molten steel, also avoids being hit by the steel ladle and placing.

[0008] The utility model discloses a steel ladle gas pipe, metal hose, receiving device, pneumatic cylinder launching device, steel ladle car gas pipe constitute, the inside copper sealing bush and high temperature resistant rubber seal cover of receiving device are provided, for after ball head contact can effectively seal, prevent gas leakage, the inside steel filter screen of receiving device is provided, can prevent sundries and enter the hole and block the gas pipe, the upper end of spring support sets up U type groove, and U type groove and cylinder body are between movable connection, and the convenient cylinder replacement operation is carried out, sets up universal spring between end cover and fixed installation flange, when the ball head of cylinder is inserted into the bowl mouth inside receiving device, can automatic deviation rectification universal centering, the inside return spring of cylinder body, its effect is in, after sending gas, the gas of cylinder body is discharged, and return spring is automatically retracted with ball head and cylinder and retracts the original position, the cylinder is wrapped by the box of steel sheet, avoids the cylinder to be scalded by steel slag or molten steel, also avoids being hit by the steel ladle and placing. The utility model discloses a steel ladle gas pipe, metal hose, receiving device, pneumatic cylinder launching device, steel ladle car gas pipe constitute, the inside copper sealing bush and high temperature resistant rubber seal cover of receiving device are provided, for after ball head contact can effectively seal, prevent gas leakage, the inside steel filter screen of receiving device is provided, can prevent sundries and enter the hole and block the gas pipe, the upper end of spring support sets up U type groove, and U type groove and cylinder body are between movable connection, and the convenient cylinder replacement operation is carried out, sets up universal spring between end cover and fixed installation flange, when the ball head of cylinder is inserted into the bowl mouth inside receiving device, can automatic deviation rectification universal centering, the inside return spring of cylinder body, its effect is in, after sending gas, the gas of cylinder body is discharged, and return spring is automatically retracted with ball head and cylinder and retracts the original position, the cylinder is wrapped by the box of steel sheet, avoids the cylinder to be scalded by steel slag or molten steel, also avoids being hit by the steel ladle and placing.

[0009] The converter steel ladle horizontal automatic bottom argon blowing device has simple structure, convenient installation, reliable operation and can realize horizontal automatic bottom argon blowing. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a whole structure schematic view of the utility model;

[0011] Figure 2 It is a receiving device schematic view of the utility model;

[0012] Figure 3 It is a right view schematic view of the utility model; Figure 2

[0013] Figure 4 It is a cylinder launching device schematic view of the utility model;

[0014] Figure 5 It is a left view schematic view of the utility model; Figure 4

[0015] Figure 6 It is a cylinder schematic view of the utility model;

[0016] Figure 7 It is a receiving device installation schematic view of the utility model.

[0017] In the drawing: 1-steel ladle air pipe, 2-metal hose, 3-receiving device, 31-method Lan, 32-bowl mouth seat body, 33-sleeve, 34-copper sealing bushing, 35-high temperature resistant rubber sealing sleeve, 36-steel filter screen, 37-pipe joint, 4-cylinder launching device, 41-cylinder, 411-ball head, 412-cylinder body, 413-piston rod, 414-return spring, 415-end cover, 416-universal spring, 417-fixed installation flange, 418-inlet pipe, 42-spring support, 43-box body, 5-steel ladle car air pipe, 6-steel ladle, 7-steel ladle car. DETAILED DESCRIPTION

[0018] The utility model will be further described below in combination with the drawings, but in any way to the utility model is limited, based on the utility model teaching made any change, all fall into the utility model protection scope.

[0019] For example, Figures 1-7 ​​As shown, the utility model includes ladle air pipe 1, metal hose 2, receiving device 3, pneumatic cylinder launching device 4, ladle car air pipe 5, the ladle air pipe 1 of being arranged in the lower part of ladle 6 is connected with the bottom air brick of ladle 6 in two ways, the receiving device 3 of being arranged in the trunnion seat side of ladle 6, the metal hose 2 of being arranged between the ladle air pipe 1 and receiving device 3, the bowl mouth seat of being arranged before the receiving device 3, the pneumatic cylinder launching device 4 of being arranged on the saddle of ladle car 7, the bowl mouth of the bowl mouth seat body of the receiving device 3 is opposite the pneumatic cylinder ball head of pneumatic cylinder launching device 4, the horizontal center line of the receiving device 3 coincides with the horizontal center line of pneumatic cylinder launching device 4, the ladle car air pipe 5 of being arranged on the ladle car 7, the metal hose 2 of being arranged between pneumatic cylinder launching device 4 and ladle car air pipe 5.

[0020] The coincidence degree error of the horizontal center line of the receiving device 3 and the horizontal center line of the pneumatic cylinder launching device 4 is not more than 20mm.

[0021] The receiving device 3 includes method Lan 31, bowl mouth seat body 32, sleeve 33, copper sealing bush 34, high-temperature-resistant rubber sealing sleeve 35, steel filter screen 36, pipe joint 37, the large mouth end of bowl mouth seat body 32 is provided with method Lan 31, the bowl mouth seat body 32 and method Lan 31 are connected through bolts, the small mouth end of bowl mouth seat body 32 is provided with sleeve 33, copper sealing bush 34, high-temperature-resistant rubber sealing sleeve 35 and steel filter screen 36 are sequentially arranged in the inner hole of sleeve 33, the tail part of sleeve 33 is provided with pipe joint 37.

[0022] The inner hole of bowl mouth seat body 32 is a conical hole.

[0023] Method Lan 31 is welded with the trunnion seat side of ladle 6.

[0024] The pneumatic cylinder launching device 4 includes pneumatic cylinder 41, spring support 42 and box 43, the box 43 is provided with pneumatic cylinder 41 and spring support 42, the tail part of pneumatic cylinder 41 is fixedly installed flange and is consolidated with box 43, the spring support 42 is located below the cylinder body of the front end of pneumatic cylinder 41, and the spring support 42 supports pneumatic cylinder 41.

[0025] The cylinder 41 comprises a ball head 411, a cylinder body 412, a piston rod 413, a return spring 414, an end cover 415, a universal spring 416, a fixed mounting flange 417 and an air inlet pipe 418. The left end of the cylinder body 412 is provided with the ball head 411. The inside of the cylinder body 412 is provided with the piston rod 413 and the return spring 414. The right end of the piston rod 413 is sequentially provided with the end cover 415, the universal spring 416, the fixed mounting flange 417 and the air inlet pipe 418. The universal spring 416 is located between the end cover 415 and the fixed mounting flange 417. The piston rod 413 is fixed with the end cover 415. The inside of the piston rod 413 is provided with a through hole.

[0026] The upper end of the spring support 42 is provided with a U-shaped groove.

[0027] The U-shaped groove at the upper end of the spring support 42 is movably connected with the cylinder body 412.

[0028] The box body 43 is welded with the saddle of the ladle car 7.

[0029] The working principle and process of the utility model are as follows:

[0030] The inside of the receiving device 3 is provided with a copper sealing bush 34 and a high-temperature-resistant rubber sealing sleeve 35, which can effectively seal after the ball head 411 is contacted and prevent gas leakage. The inside of the receiving device 3 is provided with a steel filter screen 36, which can prevent sundries from entering the hole and blocking the air pipe. The upper end of the spring support 42 is provided with a U-shaped groove, and the U-shaped groove is movably connected with the cylinder body 412, so that the cylinder 41 is convenient to replace. The universal spring 416 is arranged between the end cover 415 and the fixed mounting flange 417, so that when the ball head 411 of the cylinder 41 is inserted into the inside of the bowl mouth of the receiving device 3, the universal spring 416 can automatically correct the deviation and be centered. The inside of the cylinder body 412 is provided with the return spring 414, which can retract the ball head 411 and the cylinder body 412 to the original position after the gas in the cylinder body 412 is discharged. The cylinder 41 is wrapped by the box body 43 made of steel plate, so as to avoid being damaged by the steel slag or molten steel and being knocked down when the ladle 6 is placed.

[0031] The utility model is provided with the universal spring 416 for deviation correction, and the gas feeding function is realized through the extension and retraction of the cylinder launching device 4. The cylinder launching device 4 can realize the swing of 360° in the plane, and the swing range can reach 40mm in any direction. The position deviation caused by the seating of the ladle 6 can be automatically compensated, so as to reduce the operation accuracy and labor intensity of the crane operator and improve the operability and reliability of the argon receiving process.

[0032] The utility model discloses a remote operation personnel computer operation sends gas, and the ball head 411 of cylinder 41 top will extend, and the automatic butt joint of insertion receiving device 3 is completed, after blowing argon, the operator stops sending gas, and the gas in the pipeline inside is discharged rapidly to the solenoid valve of argon valve station automatic opening, and the automatic retraction of cylinder 41 completes the butt joint task.

Claims

1. A horizontal automatic bottom argon blowing device for a converter ladle, comprising a ladle air pipe (1), a metal hose (2), a receiving device (3), an air cylinder launching device (4), and a ladle car air pipe (5), characterized in that: The ladle air pipe (1) is arranged in the lower part of the ladle (6) and is connected with the bottom of the ladle (6) through the air brick in two ways; the receiving device (3) is arranged on the trunnion seat side of the ladle (6); the metal hose (2) is arranged between the ladle air pipe (1) and the receiving device (3); the bowl mouth seat is arranged at the front end of the receiving device (3); the cylinder launching device (4) is arranged on the saddle of the ladle car (7); the bowl mouth of the bowl mouth seat body of the receiving device (3) is opposite to the cylinder ball head of the cylinder launching device (4); the horizontal center line of the receiving device (3) coincides with the horizontal center line of the cylinder launching device (4); the ladle car air pipe (5) is arranged on the ladle car (7); the metal hose (2) is arranged between the cylinder launching device (4) and the ladle car air pipe (5).

2. The horizontal automatic bottom argon blowing device for converter ladle according to claim 1, characterized in that: The coincidence error of the horizontal center line of the receiving device (3) and the horizontal center line of the cylinder launching device (4) is not more than 20mm.

3. The horizontal automatic bottom argon blowing device for converter ladle according to claim 1, characterized in that: The receiving device (3) comprises a method lan (31), a bowl mouth seat body (32), a sleeve (33), a copper sealing bush (34), a high-temperature-resistant rubber sealing sleeve (35), a steel filter screen (36), and a pipe joint (37); the large mouth end of the bowl mouth seat body (32) is provided with the method lan (31); the bowl mouth seat body (32) and the method lan (31) are connected through bolts; the small mouth end of the bowl mouth seat body (32) is provided with the sleeve (33); the copper sealing bush (34), the high-temperature-resistant rubber sealing sleeve (35), and the steel filter screen (36) are sequentially arranged in the inner hole of the sleeve (33); and the tail part of the sleeve (33) is provided with the pipe joint (37).

4. The horizontal automatic bottom argon blowing device for converter ladle according to claim 3, characterized in that: The inner hole of the bowl mouth seat body (32) is a conical hole.

5. The horizontal automatic bottom argon blowing device for converter ladle according to claim 3, characterized in that: The method lan (31) is welded with the trunnion seat side of the ladle (6).

6. The horizontal automatic bottom argon blowing device for converter ladle according to claim 1, characterized in that: The cylinder launching device (4) comprises a cylinder (41), a spring support (42), and a box body (43); the cylinder (41) and the spring support (42) are arranged in the box body (43); the tail part of the cylinder (41) is fixedly installed with the flange and the box body (43) is fixed; the spring support (42) is located below the front end cylinder body of the cylinder (41); and the spring support (42) supports the cylinder (41).

7. The horizontal automatic bottom argon blowing device for converter ladle according to claim 6, characterized in that: The cylinder (41) comprises a ball head (411), a cylinder body (412), a piston rod (413), a return spring (414), an end cover (415), a universal spring (416), a fixed mounting flange (417), and an air inlet pipe (418); the left end of the cylinder body (412) is provided with the ball head (411); the inside of the cylinder body (412) is provided with the piston rod (413) and the return spring (414); the right end of the piston rod (413) is sequentially provided with the end cover (415), the universal spring (416), the fixed mounting flange (417), and the air inlet pipe (418); the universal spring (416) is located between the end cover (415) and the fixed mounting flange (417); the piston rod (413) is integrated with the end cover (415); and the inside of the piston rod (413) is provided with a through hole.

8. The horizontal automatic bottom argon blowing device for converter ladle according to claim 6, characterized in that: The upper end of the spring support (42) is provided with a U-shaped groove.

9. The horizontal automatic bottom argon blowing device for converter ladle according to claim 6 or 7, characterized in that: The U-shaped groove at the upper end of the spring support (42) is movably connected with the cylinder body (412).

10. The horizontal automatic bottom argon blowing device for converter ladle according to claim 6, characterized in that: The box body (43) is welded with the saddle of the ladle car (7).

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