A protective device suitable for argon joint at the bottom of ladle

Abstract

A protective device suitable for the argon joint at the bottom of a ladle, comprising a horizontal bottom bar, a vertical bottom bar, a first side protection part, a second side protection part and a front protection part; the number of the horizontal bottom bar and the vertical bottom bar are both two, and they are both arranged on the side wall of the ladle; the two ends of the horizontal bottom bar are respectively connected to one end of the two vertical bottom bars, and the combination of the two horizontal bottom bars and the two vertical bottom bars is a square frame structure, and it surrounds the argon joint; the first side protection part and the second side protection part are respectively arranged at the two ends of the two horizontal bottom bars; the front protection part is arranged between the end faces of the first side protection part and the second side protection part away from the ladle. The utility model effectively protects the argon joint, avoids it from being directly bumped by surrounding equipment, and ensures the smooth progress of the argon joint operation.

Description

Technical Field

[0001] The utility model relates to a protection device, in particular to a device capable of protecting an argon joint at the bottom of a ladle to prevent the argon joint from being bumped, belonging to the technical field of protection equipment for the argon joint of the ladle. Background Art

[0002] In the process of molten steel smelting, argon smelting is a very important part. After the molten steel is transferred to the ladle, argon is injected into the ladle, and the argon surges in the molten steel and stirs the molten steel. An argon joint is provided at the bottom of the side wall of the ladle. When argon needs to be injected, the staff connects the argon blowpipe with the argon joint on the ladle, and then injects argon to complete the bottom blowing operation of the ladle. After the argon bottom blowing operation is completed, the staff cancels the connection between the argon pipe and the argon joint, and finally transports the ladle to the next designated location. At present, the argon joint of the ladle is exposed on the outer wall of the ladle, and the argon joint protrudes a long distance from the side wall of the ladle. In the process of the overhead crane transporting the ladle, the argon joint with a long extension length is more likely to collide with other surrounding equipment. Once the argon joint is damaged, it will affect the subsequent operation of the ladle and the progress of the entire production process. Therefore, a protective device is needed, which is required to effectively protect the argon joint of the ladle to avoid collision during the operation of the ladle, thereby ensuring the normal use of the argon joint. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a protective device suitable for the argon joint at the bottom of the ladle, which can effectively protect the argon joint of the ladle and thus ensure the smooth progress of the argon blowing operation at the bottom of the ladle.

[0004] The problem described in the utility model is solved by the following technical solutions:

[0005] A protective device suitable for an argon gas joint at the bottom of a ladle, comprising a horizontal bottom bar, a vertical bottom bar, a first side protection portion, a second side protection portion and a front protection portion; the number of the horizontal bottom bar and the number of the vertical bottom bars are both two, and both are arranged on the side wall of the ladle; the two ends of the horizontal bottom bar are respectively connected to one end of the two vertical bottom bars, and the combination of the two horizontal bottom bars and the two vertical bottom bars is a square frame structure, and it surrounds the argon gas joint; the first side protection portion and the second side protection portion are respectively arranged at the two ends of the two horizontal bottom bars; the front protection portion is arranged between the end faces of the first side protection portion and the second side protection portion away from the ladle.

[0006] The above-mentioned protection device is suitable for the argon gas joint at the bottom of the ladle, and a slide groove is arranged along the length direction of the horizontal bottom rod at the end surface of the horizontal bottom rod away from the ladle; two pairs of threaded holes are respectively arranged at both ends of the side wall of the horizontal bottom rod, wherein each pair of threaded holes has two threaded holes, and the threaded holes are close to the ends of the horizontal bottom rod, and bolts are passed through each threaded hole, and the ends of the bolts enter into the slide grooves of the horizontal bottom rod.

[0007] The above-mentioned protection device is suitable for the argon gas joint at the bottom of the ladle, and the first side protection part includes a first side baffle, a first top baffle, a first bottom baffle and a first slider; the first sliders are arranged at both ends of the same end face of the first side baffle, and the two first sliders are respectively slidably arranged in the slide grooves of two different horizontal bottom bars; the first slider is located between the two bolt holes of the same pair of bolt holes; the first top baffle is arranged at the top end of the end face of the first side baffle close to the argon gas joint, and the first bottom baffle is arranged at the bottom end of the end face of the first side baffle close to the argon gas joint; the first top baffle and the first bottom baffle have the same size; the length of the first top baffle and the first bottom baffle in the length direction of the horizontal bottom bar is less than the length of the horizontal bottom bar, and the length of the first top baffle and the first bottom baffle in the length direction of the horizontal bottom bar is greater than half the length of the horizontal bottom bar.

[0008] The above-mentioned protection device is suitable for the argon gas joint at the bottom of the ladle, and the second side protection part includes a second side baffle, a second top baffle, a second bottom baffle and a second slider; second sliders are arranged at both ends of the same end face of the second side baffle, and the two second sliders are respectively slidably arranged in the slide grooves of two different horizontal bottom bars; the first slider and the second slider are respectively located at the two ends of the horizontal bottom bar; the plane of the first side baffle is parallel to the plane of the second side baffle; the second slider is located between the two bolt holes of the same pair of bolt holes; the second top baffle is arranged at the top end of the end face of the second side baffle close to the argon gas joint, and the second bottom baffle is arranged at the bottom end of the end face of the second side baffle close to the argon gas joint; the second top baffle and the second bottom baffle have the same size; the length of the second top baffle and the second bottom baffle in the length direction of the horizontal bottom bar is less than the length of the horizontal bottom bar, and the length of the second top baffle and the second bottom baffle in the length direction of the horizontal bottom bar is greater than half the length of the horizontal bottom bar; the second top baffle touches on the top end face of the first top baffle; the first bottom baffle touches on the top end face of the second bottom baffle.

[0009] The above-mentioned protection device is suitable for the argon gas joint at the bottom of the ladle, and the front protection part includes a positioning mechanism and a front baffle; the number of the positioning mechanisms is two, and they are symmetrically arranged on the first side baffle and the second side baffle on both sides; the positioning mechanism includes a connecting column and a positioning plate; the connecting column is arranged on the end face of the first side baffle away from the argon gas joint, and its end face away from the ladle is axially connected to the end of the positioning plate; positioning columns are arranged at the four corners of the end face of the front baffle, and the four positioning columns are inserted in the square frame surrounded by each baffle; the end face of the front baffle close to the ladle touches and presses on the end faces of the first side baffle and the second side baffle away from the ladle; the end face of the front baffle away from the ladle is in contact with the end face of the positioning plate close to the ladle.

[0010] The utility model establishes a stable basic frame on the ladle by combining a horizontal bottom rod and a vertical bottom rod; the first side protection part and the second side protection part cooperate to protect the surrounding of the argon gas joint; and when the side protection part is damaged by collision, it can also be quickly disassembled and replaced with a new side protection part; the front protection part protects the front side of the argon gas joint, and it can be quickly disassembled, thereby facilitating the docking of the argon gas pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model after removing the front baffle.

[0013] The list of numbers in the figure is: 1. horizontal bottom bar, 2. vertical bottom bar, 3. first side baffle, 4. first top baffle, 5. first bottom baffle, 6. second side baffle, 7. second top baffle, 8. second bottom baffle, 9. front baffle, 10. connecting column, 11. positioning plate, 12. argon gas connector. DETAILED DESCRIPTION

[0014] See also Figure 1 and Figure 2 The utility model includes a horizontal bottom rod 1, a vertical bottom rod 2, a first side protection part, a second side protection part and a front protection part; the number of the horizontal bottom rod 1 and the vertical bottom rod 2 are both two, and they are both arranged on the side wall of the ladle; the two ends of the horizontal bottom rod 1 are respectively connected to one end of the two vertical bottom rods 2, and the combination of the two horizontal bottom rods 1 and the two vertical bottom rods 2 is a square frame structure, and it surrounds the argon joint 12; the two horizontal bottom rods 1 are opposite to each other, and the four bottom rods form a square frame that acts as a base to provide support and fixation for the remaining protection parts.

[0015] The first side protection part and the second side protection part are respectively arranged at the two ends of the two horizontal bottom rods 1; the first side protection part and the second side protection part cooperate to form a square cylindrical enclosure, which surrounds the four sides of the argon joint for protection; the front protection part is arranged between the end faces of the first side protection part and the second side protection part away from the ladle; the front protection part can protect the front side of the argon joint, and the front protection part can be quickly disassembled, thereby facilitating subsequent argon docking operations.

[0016] The end surface of the horizontal bottom bar 1 away from the ladle is provided with a slide groove along the length direction of the horizontal bottom bar 1; two pairs of threaded holes are respectively provided at both ends of the side wall of the horizontal bottom bar 1, wherein each pair of threaded holes has two threaded holes, and the threaded holes are close to the end of the horizontal bottom bar 1, and bolts are passed through each threaded hole, and the ends of the bolts enter the slide groove of the horizontal bottom bar 1; four bolts are provided on each horizontal bottom bar 1, and they are divided into two pairs, and the two pairs of bolts respectively fix the first slider and the second slider, thereby relatively fixing the positions of the first side baffle and the second side baffle.

[0017] The first side protection part includes a first side baffle plate 3, a first top baffle plate 4, a first bottom baffle plate 5 and a first slider; first sliders are arranged at both ends of the same end face of the first side baffle plate 3, and the two first sliders are respectively slidably arranged in the slide grooves of two different horizontal bottom bars 1; when the two first sliders slide into the slide groove of the horizontal bottom bar 1 and are located between the two threaded holes, the position of the first slider can be fixed by screwing in the bolts so that it cannot continue to slide in the slide groove of the horizontal bottom bar 1; the first slider is located between the two bolt holes of the same pair of bolt holes; the first top baffle plate 4 is arranged at the top end face of the first side baffle plate 3 close to the argon gas connector 12, and the first bottom baffle plate 5 is arranged at the end face of the first side baffle plate 3 close to the argon gas connector 12 bottom end; the first top baffle 4 and the first bottom baffle 5 have the same size; the length of the first top baffle 4 and the first bottom baffle 5 in the length direction of the horizontal bottom rod 1 is less than the length of the horizontal bottom rod 1, and the length of the first top baffle 4 and the first bottom baffle 5 in the length direction of the horizontal bottom rod 1 is greater than half the length of the horizontal bottom rod 1; this is to avoid the top baffle and the bottom baffle from pressing on the opposite side baffle, the first bottom baffle 5 and the first top baffle do not contact the second side baffle, and vice versa. The effect is that when a side baffle is hit by a collision, since the two top baffles at the upper end are in contact with each other, the impact force will not be directly transmitted to the opposite side baffle, so only one side baffle needs to be replaced, and there is no need to replace the entire frame.

[0018] The second side protection part includes a second side baffle plate 6, a second top baffle plate 7, a second bottom baffle plate 8 and a second slider; second sliders are arranged at both ends of the same end face of the second side baffle plate 6, and the two second sliders are respectively slidably arranged in the slide grooves of two different horizontal bottom bars 1; the first slider and the second slider are respectively located at the two ends of the horizontal bottom bar 1; the plane of the first side baffle plate 3 is parallel to the plane of the second side baffle plate 6; the second slider is located between the two bolt holes of the same pair of bolt holes; the positioning principle of the bolt for the second slider is consistent with the positioning principle of the first slider; the second top baffle plate 7 is arranged at the top end face of the second side baffle plate 6 close to the argon connector 12, and the second bottom baffle plate 8 is arranged at the bottom end face of the second side baffle plate 6 close to the argon connector 12; the size of the second top baffle plate 7 and the second bottom baffle plate 8 is The dimensions are the same; the length of the second top baffle 7 and the second bottom baffle 8 in the length direction of the horizontal bottom rod 1 is less than the length of the horizontal bottom rod 1, and the length of the second top baffle 7 and the second bottom baffle 8 in the length direction of the horizontal bottom rod 1 is greater than half the length of the horizontal bottom rod 1; similarly, the second top baffle and the second bottom baffle do not contact the first side baffle, which is also to prevent the impact force of the second side baffle from being transmitted to the first side baffle and causing it to deform together when the second side baffle collides; the second top baffle 7 contacts and presses on the top end surface of the first top baffle 4; the first bottom baffle 5 contacts and presses on the top end surface of the second bottom baffle 8; the two top baffles are in contact with each other, the bottom baffles are synchronized, and there is no hard contact. When one side baffle is hit, the other side baffle will not be affected, and the damaged side baffle can be replaced alone.

[0019] The front guard part includes a positioning mechanism and a front baffle 9; the number of the positioning mechanisms is two, and they are symmetrically arranged on the first side baffle 3 and the second side baffle 6 on both sides; the positioning mechanisms on both sides fix the front baffle 9, thereby preventing the front baffle 9 from being separated from the first side baffle 3 and the second side baffle; the positioning mechanism includes a connecting column 10 and a positioning piece 11; the connecting column 10 is arranged on the end face of the first side baffle 3 away from the argon joint 12, and its end face away from the ladle is axially connected to the end of the positioning piece 11; positioning columns are arranged at the four corners of the end face of the front baffle 9, and the four positioning columns are inserted in the square frame surrounded by each baffle; the positioning column The presence of a matching positioning plate 11 makes the front baffle 9 relatively fixed to the side baffles, the top baffle and the bottom baffle; ensures that the front baffle 9 will not easily break away from the square frame surrounded by the side baffles, the top baffle and the bottom baffle; the end face of the front baffle 9 close to the ladle presses against the end faces of the first side baffle 3 and the second side baffle 6 away from the ladle; the end face of the front baffle 9 away from the ladle contacts the end face of the positioning plate 11 close to the ladle; the presence of the positioning plate 11 blocks the retreat of the front baffle 9 away from the remaining baffles, ensuring that the front baffle 9 maintains contact with the remaining baffles; the front baffle 9 can only be withdrawn when the positioning plate 11 is rotated so that it no longer contacts the front baffle 9.

[0020] Principle of use: The installation steps are as follows. In the initial state, the horizontal bottom rod 1 and the vertical bottom rod 2 are combined to surround the argon joint 12 and are set on the outer wall of the ladle; then the two first sliders on the first side baffle 3 are slid and set in the slide groove of the horizontal bottom rod 1, and the position of the first slider is adjusted so that it is located between the adjacent threaded holes of the horizontal bottom rod 1, and then the bolts are screwed in. The bolts on both sides of the first slider fix the position of the first slider, and then fix the position of the first side baffle 3. The fixing principle of the second side baffle 6 is the same; then the four positioning columns on the front baffle 9 are inserted into the square frame surrounded by each baffle, and the positioning piece 11 is rotated to limit the front baffle 9 to prevent it from detaching from the square frame surrounded by each baffle; at this point, the external protection of the argon joint 12 is set and the argon joint 12 is protected;

[0021] When argon gas docking is required, the positioning piece 11 is rotated, and then the front baffle plate 9 is removed, and then the argon gas joint 12 is docked with the argon gas pipeline to perform argon blowing. After the argon blowing is completed, the argon gas pipeline is removed, and the front baffle plate 9 is put back, and the positioning piece 11 is rotated to re-limit.

[0022] If the protective device is damaged and needs to be replaced, the front baffle 9 can be directly replaced; for the replacement of the first side protection part or the second side protection part; unscrew the corresponding bolts, and then move the side baffle and the slider thereon laterally; then install the new side protection part, and re-screw the bolts to fix it.

Claims

1. A protective device for the argon joint at the bottom of a ladle, characterized in that: The invention comprises a horizontal bottom bar (1), a vertical bottom bar (2), a first side protection part, a second side protection part and a front protection part; the number of the horizontal bottom bar (1) and the number of the vertical bottom bar (2) are both two, and both are arranged on the side wall of the ladle; the two ends of the horizontal bottom bar (1) are respectively connected to one end of the two vertical bottom bars (2), and the combination of the two horizontal bottom bars (1) and the two vertical bottom bars (2) is a square frame structure, and the structure surrounds the argon gas joint (12); the first side protection part and the second side protection part are respectively arranged at the two ends of the two horizontal bottom bars (1); and the front protection part is arranged between the end faces of the first side protection part and the second side protection part away from the ladle.

2. The protective device for the argon joint at the bottom of the ladle according to claim 1, characterized in that: The end surface of the horizontal bottom rod (1) away from the ladle is provided with a slide groove along the length direction of the horizontal bottom rod (1); two pairs of threaded holes are respectively provided at both ends of the side wall of the horizontal bottom rod (1), wherein each pair of threaded holes has two threaded holes, and the threaded holes are close to the ends of the horizontal bottom rod (1), and bolts are passed through each threaded hole, and the ends of the bolts enter the slide groove of the horizontal bottom rod (1).

3. The protective device for the argon joint at the bottom of the ladle according to claim 2, characterized in that: The first side protection part comprises a first side baffle (3), a first top baffle (4), a first bottom baffle (5) and a first slider; both ends of the same end surface of the first side baffle (3) are provided with a first slider, and the two first sliders are respectively slidably arranged in the slide grooves of two different horizontal bottom bars (1); the first slider is located between the two bolt holes of the same pair of bolt holes; the first top baffle (4) is arranged at the top end of the end surface of the first side baffle (3) close to the argon gas connector (12), and the first bottom baffle (5) is arranged at the bottom end of the end surface of the first side baffle (3) close to the argon gas connector (12); the first top baffle (4) and the first bottom baffle (5) have the same size; the length of the first top baffle (4) and the first bottom baffle (5) in the length direction of the horizontal bottom bar (1) is less than the length of the horizontal bottom bar (1), and the length of the first top baffle (4) and the first bottom baffle (5) in the length direction of the horizontal bottom bar (1) is greater than half the length of the horizontal bottom bar (1).

4. The protective device for the argon joint at the bottom of the ladle according to claim 3, characterized in that: The second side protection portion comprises a second side baffle (6), a second top baffle (7), a second bottom baffle (8) and a second slider; the second side baffle (6) is provided with a second slider at both ends of the same end surface, and the two second sliders are respectively slidably arranged in the slide grooves of two different horizontal bottom bars (1); the first slider and the second slider are respectively located at the two ends of the horizontal bottom bar (1); the plane of the first side baffle (3) is parallel to the plane of the second side baffle (6); the second slider is located between the two bolt holes of the same pair of bolt holes; the second top baffle (7) is arranged at the top end of the end surface of the second side baffle (6) close to the argon gas connector (12) The second bottom baffle plate (8) is arranged at the bottom end of the end surface of the second side baffle plate (6) close to the argon gas connector (12); the second top baffle plate (7) and the second bottom baffle plate (8) have the same size; the length of the second top baffle plate (7) and the second bottom baffle plate (8) in the length direction of the horizontal bottom rod (1) is less than the length of the horizontal bottom rod (1), and the length of the second top baffle plate (7) and the second bottom baffle plate (8) in the length direction of the horizontal bottom rod (1) is greater than half the length of the horizontal bottom rod (1); the second top baffle plate (7) contacts the top end surface of the first top baffle plate (4); and the first bottom baffle plate (5) contacts the top end surface of the second bottom baffle plate (8).

5. The protective device for the argon joint at the bottom of the ladle according to claim 4, characterized in that: The front guard part comprises a positioning mechanism and a front baffle (9); the number of the positioning mechanisms is two, and they are symmetrically arranged on the first side baffle (3) and the second side baffle (6) on both sides; the positioning mechanism comprises a connecting column (10) and a positioning plate (11); the connecting column (10) is arranged on the end face of the first side baffle (3) away from the argon joint (12), and its end face away from the ladle is axially connected to the end of the positioning plate (11); positioning columns are arranged at the four corners of the end face of the front baffle (9), and the four positioning columns are inserted in the square frame surrounded by each baffle; the end face of the front baffle (9) close to the ladle contacts the end faces of the first side baffle (3) and the second side baffle (6) away from the ladle; the end face of the front baffle (9) away from the ladle contacts the end face of the positioning plate (11) close to the ladle.

Images