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CN-224207869-U - Combined multi-section terminal electromagnetic stirrer

CN224207869UCN 224207869 UCN224207869 UCN 224207869UCN-224207869-U

Abstract

The utility model relates to a combined type multi-section end electromagnetic stirrer which comprises a sealed cavity, wherein a shielding component and an iron core component are correspondingly arranged in the sealed cavity, the shielding component surrounds a non-working surface of the iron core component to realize magnetic field shielding on the non-working surface of the iron core component, a water diversion component for reasonably distributing cooling water onto the iron core component is arranged at the top of the sealed cavity, a cylindrical cooling water chamber component is further arranged at the middle position of the top of the sealed cavity, a terminal plate component is detachably connected to the top of the cooling water chamber component, a cavity opening is formed in the top of the sealed cavity, an internal cable is led out of the iron core component, and is electrically connected with the terminal plate component after upwards passing through the cavity opening and the cooling water chamber component, and the terminal plate component is electrically connected with an external variable-frequency power supply.

Inventors

  • REN JIQUAN
  • QIAO QIZHI
  • ZHANG KAI
  • YIN TENGFEI
  • SHEN CHANGHUA
  • DING YAN
  • SHEN YANCONG
  • SHU QING
  • LIU CONGLIANG
  • LIU YANFU

Assignees

  • 湖南科美达电气股份有限公司

Dates

Publication Date
20260508
Application Date
20250521

Claims (10)

  1. 1. The combined multi-section end electromagnetic stirrer is characterized by comprising a sealed cavity, wherein a shielding component (2) and an iron core component (3) which correspond to each other are arranged in the sealed cavity, and the shielding component (2) surrounds a non-working surface of the iron core component (3); A water distribution assembly (5) for reasonably distributing cooling water to the iron core assembly (3) is arranged at the top of the sealing cavity; a cylindrical cooling water chamber assembly (6) is further arranged in the middle of the top of the sealing cavity, and a terminal plate assembly (7) is detachably connected to the top of the cooling water chamber assembly (6); The top of the sealed cavity is provided with a cavity opening, an internal cable (9) is led out of the iron core assembly (3), the internal cable (9) upwards passes through the cavity opening and the cooling water chamber assembly (6) and then is electrically connected with the terminal plate assembly (7), and the terminal plate assembly (7) is electrically connected with an external variable frequency power supply.
  2. 2. The multi-section end electromagnetic stirrer according to claim 1, characterized in that the sealing cavity is formed by enclosing a shell component (1) and a top plate component (4), and the top of the shell component (1) is detachably connected with the bottom of the top plate component (4).
  3. 3. The multi-section end electromagnetic stirrer according to claim 2, wherein the shell component (1) comprises a shell bottom plate (11), a shell side plate (12) which is enclosed is arranged at the top of the shell bottom plate (11), an iron core mounting seat (13) corresponding to the iron core component (3) is arranged on the inner side wall of the shell side plate (12), a shell flange (14) is arranged at the top of the shell side plate (12), and the shell flange (14) and the top plate component (4) are detachably connected through threaded holes and bolts; The iron core assembly (3) is mounted on the iron core mounting seat (13).
  4. 4. A multi-section end electromagnetic stirrer as claimed in claim 3, characterized in that the shielding assembly (2) comprises a shielding side plate (21) and a shielding top plate (22), the shielding side plate (21) being mounted on the inner side wall of the housing bottom plate (11), the shielding top plate (22) being mounted at the bottom of the top plate assembly (4), the shielding assembly (2) thereby surrounding the top surface, the side surface of the core assembly (3), i.e. the non-working surface of the core assembly (3), the bottom surface of the core assembly (3) acting as the working surface.
  5. 5. A multi-section end electromagnetic stirrer according to claim 3, characterized in that the iron core assembly (3) comprises a plurality of laminated iron core punched sheets (31), the iron core punched sheets (31) are wrapped and fixed by iron core clamping plates (32) and iron core end faces (33), the iron core clamping plates (32) are tightly attached to the front side and the rear side of the iron core punched sheets (31), and the iron core end faces (33) are tightly attached to the left side and the right side of the iron core punched sheets (31); An iron core mounting block (34) corresponding to the iron core mounting seat (13) is arranged on the outer side surface of the iron core punching sheet (31), and the corresponding iron core mounting seat (13) and the iron core mounting block (34) are detachably connected; And the electromagnetic coil (35) is wound outside the iron core punching sheet (31) and the iron core clamping plate (32), and the electromagnetic coil (35) is led out of the internal cable (9).
  6. 6. A multi-section end electromagnetic stirrer according to claim 3, wherein, The top plate assembly (4) comprises a shell top plate (43), the bottom of the shell top plate (43) is detachably connected with a shell flange (14), the left end and the right end of the top of the shell top plate (43) are fixedly connected with mounting fixing plates (41), reinforcing plates (42) are arranged between the mounting fixing plates (41) and the shell top plate (43), and the reinforcing plates (42) are respectively fixedly connected with the mounting fixing plates (41) and the shell top plate (43); The mounting fixing plate (41) is provided with a mounting hole (411) for connecting and fixing with the sector section of the continuous casting machine.
  7. 7. The multi-section end electromagnetic stirrer according to claim 1, characterized in that the water diversion component (5) comprises a water diversion box (52), the water diversion box (52) is installed at the top of the sealed cavity, the water diversion box (52) is upwardly connected with a water pipe quick connector (51) and downwardly connected with a water diversion pipe (53), the water diversion pipe (53) downwardly extends into the sealed cavity, and the top of the sealed cavity is provided with a through pipe hole corresponding to the water diversion pipe (53).
  8. 8. The multi-section end electromagnetic stirrer according to claim 1, characterized in that the cooling water chamber assembly (6) comprises enclosed cooling water chamber side plates (62), wherein the bottom of the cooling water chamber side plates (62) is connected with a cooling water chamber lower flange (61) and the top is connected with a cooling water chamber upper flange (63); The cooling water chamber lower flange (61) is detachably connected with the top of the sealed cavity, and the cooling water chamber lower flange (61) surrounds the outer side of the edge of the cavity opening; The terminal plate assembly (7) is arranged on the cooling water chamber upper flange (63).
  9. 9. The multi-section end electromagnetic stirrer according to claim 1, characterized in that the terminal plate assembly (7) comprises a terminal plate (71), the terminal plate (71) being arranged on top of the cooling water chamber assembly (6); The terminal board (71) is penetrated by a plurality of wiring screw rods (73), the terminal board (71) is provided with terminal board through holes corresponding to the wiring screw rods (73) respectively, the bottom of the wiring screw rods (73) is electrically connected with the internal cable (9), and the top of the terminal board (71) is provided with a waterproof plug (72) for sealing a gap between the wiring screw rods (73) and the terminal board through holes; the wiring screw rod (73) is connected with a bolt fastener (74) and a wiring nose (75); the wiring screw rod (73) is electrically connected with an external variable frequency power supply through the wiring nose (75).
  10. 10. The multi-section end electromagnetic stirrer according to claim 9, characterized in that the terminal block assembly (7) is detachably covered with a junction box assembly (8); The junction box assembly (8) comprises a junction box flange (81), a junction box side plate (82) which is enclosed is arranged at the top of the junction box flange (81), a junction box side cover plate (83) is arranged on the outer side surface of the junction box side plate (82), and a junction box top cover plate (84) is arranged at the top of the junction box side plate (82); The junction box top cover plate (84) is provided with a gun connector (86) and a high-temperature cable waterproof plug (85) corresponding to the junction nose (75).

Description

Combined multi-section terminal electromagnetic stirrer Technical Field The utility model relates to the technical field of metal smelting continuous casting, in particular to a combined multi-section tail end electromagnetic stirrer. Background The working principle of the electromagnetic stirrer is that under the action of an external variable frequency power supply, an electromagnetic coil wound on an iron core component generates a traveling wave magnetic field (ampere rule, electric magnetism is generated), molten steel in a casting blank is taken as a stressed research object, and the molten steel serving as a conductor cuts a magnetic induction line of the traveling wave magnetic field to become a current carrying conductor, so that the moving traveling wave magnetic field generates vortex (right-hand rule, electric power generation) in a molten steel volume element of the casting blank, the magnetic field generates lorentz force (left-hand rule, electric power generation) on the vortex, namely electromagnetic force, the electromagnetic force acts on the molten steel volume element to push the molten steel to flow, thereby realizing stirring of the molten steel in the core of the casting blank, further controlling the casting blank to refine casting blank grains, improving equiaxial crystal rate, improving center segregation, improving center loose and other metallurgical defects in the solidification process, and finally achieving the aim of improving the quality of the casting blank. Since the conventional old continuous casting machine has not considered the installation condition of the conventional electromagnetic stirrer before, it is very troublesome to install the conventional electromagnetic stirrer after that. The sector section is generally required to be greatly reformed, and some continuous casting machine sector sections have no reforming and utilizing value, and even new sector sections need to be redesigned and manufactured, which undoubtedly brings huge economic burden to the owner side. The traditional end electromagnetic stirrer is relatively troublesome to install and is integral, and the appearance structure cannot be adjusted after being determined, so that the casting blank section corresponding to the traditional end electromagnetic stirrer has certain limitation, and industry owners often need to be provided with a plurality of end electromagnetic stirrers with different sections in order to meet the casting blank metallurgical process requirements of different sections, and huge economic burden is certainly brought to owners. The traditional terminal electromagnetic stirrer is internally provided with a shielding component, so that large magnetic leakage exists on a non-working surface, the electromagnetic stirrer needs to input higher operation electric control parameters to meet the normal metallurgical process requirement, the ton steel power consumption is higher, the energy conservation and the environmental protection are not enough, and the huge economic burden is undoubtedly brought to an owner side. Disclosure of utility model Aiming at the technical problems in the related art, the utility model provides a combined multi-section end electromagnetic stirrer which can overcome the defects in the prior art. In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows: The combined multi-section end electromagnetic stirrer comprises a sealed cavity, wherein a shielding component and an iron core component are correspondingly arranged in the sealed cavity, and the shielding component surrounds a non-working surface of the iron core component; a water distribution assembly for reasonably distributing cooling water to the iron core assembly is arranged at the top of the sealing cavity; A cylindrical cooling water chamber assembly is further arranged in the middle of the top of the sealing cavity, and the top of the cooling water chamber assembly is detachably connected with a terminal plate assembly; The top of the close joint cavity is provided with a cavity opening, the iron core component is led out of an internal cable, the internal cable upwards passes through the cavity opening and the cooling water chamber component and then is electrically connected with the terminal board component, and the terminal board component is electrically connected with an external variable frequency power supply. When the method is implemented, the iron core component obtains the electric quantity provided by the variable frequency power supply through the internal cable and the terminal board component, so that a traveling wave magnetic field is generated in casting blank molten steel to be stirred, the casting blank molten steel generates vortex under the action of the magnetic field, the magnetic field generates Lorentz force, namely electromagnetic thrust, and the electromagnetic thrust stirs the casting blank molten steel, so that the