Quick direct connection device for trunnion and rotary joint of converter

Abstract

The utility model belongs to the technical field of metallurgical converter equipment, and particularly relates to a quick direct connection device for a converter trunnion and a rotary joint, which comprises a flange and a separated insertion tube, the converter trunnion is connected with the rotary joint through the flange, one end of the converter trunnion is connected with the left end of the flange through a bolt, and the right end of the flange is connected with the rotary joint through a bolt. A plurality of trunnion inner matching pipes are transversely arranged in the converter trunnion, a plurality of inserting holes are transversely formed in the rotary joint, a plurality of communicating holes are transversely formed in the flange in a penetrating mode, the trunnion inner matching pipes are inserted into the communicating holes from one side of the flange, and the diameter of the middle of each communicating hole is smaller than that of the two ends. And the communicating hole in the other side of the flange is fixedly connected with the inserting hole of the rotary joint through a separated inserting pipe. According to the direct connection device, the trunnion inner piping is connected and fixed through the flange, accurate positioning can be achieved, and installation is convenient; the flange and the rotary joint are connected and fixed through the separated inserting pipe, the efficiency is higher, the matching of a piping joint in the trunnion and the rotary joint is not needed, and the problems of leakage and piping breakage are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to metallurgical converter equipment technical field, especially relate to a quick straight connection device of converter trunnion and rotary joint. BACKGROUND

[0002] The rotary joint of the converter trunnion is the device for connecting external cooling water, bottom blowing gas, tapping hole slide plate slag blocking hydraulic oil into the converter trunnion ring.

[0003] The cooling water, bottom blowing gas and hydraulic oil enter the rotary joint shell (stator) and then enter the rotor inner cavity through multiple annular seals, and then reach the furnace mouth, furnace cap, furnace bottom bottom gun and slide plate slag blocking device hydraulic cylinder through the corresponding pipe joint arranged in advance in the trunnion and trunnion.

[0004] The converter rotary joint weighs about 1 ton, and when replacing the operation, the rotary joint is lifted by the chain, the medium passage hole at the front end of the rotary joint is aligned with the corresponding pipe joint in the converter trunnion, and the rotary joint is jacked into place.

[0005] The pipe diameters in the trunnion are different, and the holes corresponding to the rotary joint are connected through the trunnion. The connection is sealed by "O" ring, and the cooperation size and precision are high. The pipe in the trunnion (the number is about 5-8) is long and cannot be accurately positioned. When the rotary joint is installed, the pipe inside cannot be seen, and it is difficult to install. Moreover, as long as one pipe is not aligned, the rotary joint cannot be smoothly installed in place. Even if it is installed in place, the pipe that is not aligned can be deformed and displaced, so that the pipe joint cannot be accurately matched with the rotary joint, causing leakage, and even the pipe can be broken. To restore the pipe, the furnace shell and trunnion must be repaired, causing great time and production capacity loss. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a quick straight connection device of converter trunnion and rotary joint to solve the problems in the above background technology.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A converter trunnion and rotary joint quick straight connecting device, including a flange and a split plug-in pipe, the converter trunnion and rotary joint are connected through the flange, the left end of the flange is connected with the converter trunnion through bolts, the right end of the flange is connected with the rotary joint through bolts, a plurality of inner trunnion pipes are arranged transversely in the converter trunnion, a plurality of plug-in holes are arranged transversely in the rotary joint, a plurality of communication holes are arranged transversely in the flange, the middle diameter of the communication hole is smaller than the diameter of the two ends, the inner trunnion pipe is inserted into the communication hole from one side of the flange, and the communication hole on the other side of the flange is connected and fixed with the plug-in hole of the rotary joint through the split plug-in pipe.

[0009] Further, the bolt is a hexagonal bolt.

[0010] Further, the flange and the rotary joint are provided with a positioning structure.

[0011] Further, the positioning structure is composed of a limiting groove and a positioning block, the limiting groove is arranged on the flange, the positioning block is fixedly connected to the rotary joint, and the positioning block is connected with the limiting groove.

[0012] The installation process is as follows: the communication holes on the left side of the flange are aligned with the inner trunnion pipes one by one, the inner trunnion pipes are inserted into the communication holes, the flange and the converter trunnion are fixedly connected through bolts, the split plug-in pipe is inserted into the communication holes on the right side of the flange in sequence, the plug-in holes on the rotary joint are aligned with the split plug-in pipes, the split plug-in pipes are inserted into the plug-in holes, the positioning block is matched with the limiting groove, and the flange and the rotary joint are fixedly connected through bolts.

[0013] The utility model discloses the following beneficial effects are obtained:

[0014] (1) compared with the rotary joint, the flange is small in quality, is more easily installed with the inner trunnion pipe, and the inner trunnion pipe does not bend in the installation process, and the flange is connected and fixed to the inner trunnion pipe, avoids the shaking of the inner trunnion pipe in the subsequent connection process, can be accurately positioned, and is convenient to install.

[0015] (2) the flange and the rotary joint are connected and fixed through the split plug-in pipe, installation is more convenient, and efficiency is higher, without the cooperation of the inner trunnion pipe joint and the rotary joint, the problems of leakage and top break pipe are avoided. DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model embodiment.

[0017] Mark explanation: 1, converter trunnion;2, inner trunnion pipe;3, rotary joint;4, plug-in hole;5, flange;6, communication hole;7, split plug-in pipe;8, limiting groove;9, positioning block. Specific implementation

[0018] The technical scheme of the utility model will be described clearly and completely in connection with the drawings and embodiments.

[0019] As Figure 1 As shown in the figure, a converter trunnion and rotary joint quick straight connecting device, including converter trunnion 1 and separate plug-in pipe 7, rotary joint 3 and flange 5, converter trunnion 1 and rotary joint 3 are connected through flange 5, one end of converter trunnion 1 is connected through bolt flange 5 left end, the right end of flange 5 is connected through bolt rotary joint 3, bolt is hexagon bolt, converter trunnion 1 is equipped with several trunnion inner pipes 2 in the transverse direction, rotary joint 3 is equipped with several plug-in holes 4 in the transverse direction, the middle diameter of communication hole 4 is less than the diameter of both ends, several communication holes 6 are transversely provided on flange 5, trunnion inner pipe 2 is inserted into communication hole 6 from one side of flange 5, communication hole 6 on the other side of flange 5 and plug-in hole 4 of rotary joint 3 are connected and fixed through separate plug-in pipe 7, positioning structure is arranged between flange 5 and rotary joint 3, and the positioning structure is composed of limiting groove 8 and positioning block 9, limiting groove 8 is provided on flange 5, positioning block 9 is fixedly connected on rotary joint 3, and positioning block 9 is connected with limiting groove 8 in engagement;The trunnion inner pipe is connected and fixed through the flange, which prevents the trunnion inner pipe from shaking in the subsequent connection process and accurately positions;The separate plug-in pipe is used to connect the flange and the rotary joint, the separate plug-in pipe is accurately matched with the rotary joint, and leakage is prevented;Through the design that the middle diameter of communication hole is less than the diameter of both ends, the narrow hole structure in the middle plays a limiting role on the trunnion inner pipe and the separate plug-in pipe, and use is more convenient;Through the engagement of limiting groove and positioning block, the positioning effect is achieved, and the structure is more stable.

[0020] It can be understood that the specific embodiments described herein are only used to explain the utility model, and not to limit the utility model.

[0021] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A quick straight connecting device of a converter trunnion and a rotary joint, characterized in that, The converter trunnion is connected with the rotary joint through a flange, the left end of the flange is connected with the trunnion through bolts, the right end of the flange is connected with the rotary joint through bolts, a plurality of inner trunnion pipes are arranged in the trunnion, a plurality of plug-in holes are arranged in the rotary joint, a plurality of communication holes are arranged in the flange, the middle diameter of the communication hole is smaller than the two end diameters, the inner trunnion pipes are inserted into the communication holes from one side of the flange, and the communication holes on the other side of the flange are connected and fixed with the plug-in holes of the rotary joint through separate plug-in pipes.

2. A quick straight connecting device of trunnion and rotary joint of converter according to claim 1, characterized in that, The bolt is a hexagonal bolt.

3. The quick straight connection device of the trunnion and rotary joint of a converter according to claim 1, characterized in that, A positioning structure is arranged between the flange and the rotary joint.

4. A quick straight connecting device of a trunnion and a rotary joint of a converter according to claim 3, characterized in that, The positioning structure is composed of a limiting groove and a positioning block, the limiting groove is arranged on the flange, the positioning block is fixedly connected to the rotary joint, and the positioning block is connected with the limiting groove in a matching mode.

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