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CN-122012862-A - Spherical bullet feeding device for pure steel calcium treatment

CN122012862ACN 122012862 ACN122012862 ACN 122012862ACN-122012862-A

Abstract

The invention discloses a spherical bullet feeding device for pure steel calcium treatment, which comprises a steel platform, a bullet feeding mechanism and a controller electrically connected with the bullet feeding mechanism, wherein the steel platform is positioned above a steel ladle, the lower end of the steel platform is provided with a heat insulation fireproof layer, the steel platform is provided with a plurality of vertical through holes which are distributed in rows and columns and are used for passing through spherical bullets, the horizontal positions of the plurality of vertical through holes are all in the range of the horizontal positions of a ladle cavity in the steel ladle, and the bullet feeding mechanism is provided with a plurality of bullet feeding ends which are synchronously used for feeding the bullets to the plurality of vertical through holes respectively. According to the invention, after the bullet throwing mechanism is controlled, a plurality of spherical bullets are synchronously and respectively and uniformly thrown into the steel ladle through a plurality of vertical through holes distributed in rows and columns, so that the time of a calcium treatment process is reduced, the calcium absorption is promoted, the automation, the high efficiency and the scale of the calcium treatment are realized, and the heat insulation fireproof layer can insulate heat and prevent fire, so that the bullet throwing mechanism is not exposed to molten steel heat radiation baking any more, the bullet throwing mechanism is not deformed for a long time, and the reliability is further improved.

Inventors

  • PENG HONGLIANG

Assignees

  • 攀钢集团攀枝花钢铁研究院有限公司

Dates

Publication Date
20260512
Application Date
20260313

Claims (10)

  1. 1. The utility model provides a pure steel calcium is handled with spherical bullet device of throwing something and feeding which characterized in that includes: The steel platform (100), the steel platform (100) is located above the ladle (400), the lower end of the steel platform (100) is provided with a heat insulation fireproof layer (200), the steel platform (100) is provided with a plurality of vertical through holes which are distributed in rows and columns and are used for passing through spherical bullets, and the horizontal positions of the plurality of vertical through holes are all in the range of the horizontal positions of the ladle cavity in the ladle (400); The bullet throwing mechanism (300) is provided with a plurality of bullet throwing ends which are used for throwing to a plurality of vertical through holes synchronously; And the controller is electrically connected with the projectile throwing mechanism (300).
  2. 2. The spherical bullet feeding device for pure steel calcium treatment according to claim 1, wherein the bullet feeding mechanism (300) comprises a plurality of bullet distributing modules (320), a plurality of bullet control and feeding modules (330) for temporarily controlling and feeding spherical bullets, and a plurality of spiral bullet bins (310) which are vertically arranged and enable the spherical bullets to roll along a spiral line, the plurality of spiral bullet bins (310) are uniformly arranged along the longitudinal direction, the plurality of bullet distributing modules (320) are uniformly arranged along the longitudinal direction, and the plurality of bullet control and feeding modules (330) are distributed in rows and columns; The bullet-distributing module (320) is uniformly provided with a plurality of bullet-distributing ends along the transverse direction, the output end of the spiral bullet bin (310) is transversely communicated with all bullet-distributing ends of the bullet-distributing module (320), the bullet-controlling throwing module (330) is vertically provided with a bullet-throwing end which is positioned right above the vertical through hole, and one bullet-distributing end is downwards communicated with one bullet-throwing end.
  3. 3. The spherical bullet feeding device for pure steel calcium treatment according to claim 2, wherein a spiral groove (313) and a bullet loading hole (312) are arranged in the spiral bullet bin (310), the axis of the spiral groove (313) is vertical, the lower end of the bullet loading hole (312) is connected to the upper end of the spiral groove (313), and the lower end of the spiral groove (313) is connected to the bullet distributing module (320) through an opening and closing assembly.
  4. 4. The spherical bullet feeding device for pure steel calcium treatment according to claim 3, wherein the opening and closing assembly comprises a first baffle plate (314) rotatably connected to the lower end of the spiral bullet bin (310), the first baffle plate (314) is rotated to block the lower end of the spiral groove (313), and the first baffle plate (314) is rotated reversely to open the lower end of the spiral groove (313).
  5. 5. The spherical bullet feeding device for pure steel calcium treatment according to any one of claims 2-4, wherein the upper end of the spiral bullet bin (310) is provided with a lifting hole (311), and/or The lower end of the spiral magazine (310) is provided with a plurality of positioning pin holes (315) which are connected with the steel platform (100) in a positioning way.
  6. 6. The spherical bullet feeding device for pure steel calcium treatment according to any one of claims 2-4, wherein the bullet distributing module (320) comprises two supports (321) and a bullet distributing coil (322) extending transversely, two ends of the bullet distributing coil (322) are respectively connected to the two supports (321) in a rotating way, one end of the bullet distributing coil (322) is connected to the output end of the spiral bullet bin (310), a rotation driving mechanism (324) for driving the bullet distributing coil (322) to rotate is arranged on the support (321) far away from the spiral bullet bin (310), and the rotation driving mechanism (324) is electrically connected with a controller; The inner lower part of the bullet-distributing coil pipe (322) is provided with a V-shaped groove (325) along the length direction, the upper part of the bullet-distributing coil pipe (322) is uniformly provided with a plurality of bullet-distributing holes (323) which are internally and externally communicated along the length direction, and two sides of any bullet-distributing hole (323) are vertically provided with a second baffle plate (326) positioned at the inner upper part of the bullet-distributing coil pipe (322); Before the bullet-distributing rotary tube (322) rotates, the V-shaped groove (325) sequentially rolls and arranges a plurality of spherical bullets along the length direction; After the bullet distributing coil (322) rotates 180 degrees, spherical bullets corresponding to the horizontal positions of the bullet distributing holes (323) fall into the bullet controlling and throwing module (330) from the bullet distributing holes (323), and any one of the second baffle plates (326) blocks the spherical bullets on one side of the bullet distributing holes (323) from rolling to the bullet distributing holes (323).
  7. 7. The spherical bullet feeding device for pure steel calcium treatment according to claim 6, wherein the bullet control throwing module (330) comprises a frame (331), a sloping plate (332) located under the bullet distribution hole (323) is arranged on the frame (331), an electromagnet (333) electrically connected with the controller is arranged at the lower end of the sloping plate (332), a bullet throwing hole (334) located above the vertical through hole is arranged at the lower end of the frame (331), and one side of the sloping plate (332) extends downwards to be right above the bullet throwing hole (334).
  8. 8. The spherical bullet feeding device for pure steel calcium treatment according to claim 7, wherein the lower end of the bullet distributing coil (322) is uniformly connected with a flying screw along the length direction by bolts, the bullet controlling and feeding module (330) comprises a stop block (336) and a connecting rod which are positioned on one side of the inclined plate (332) close to the bullet feeding hole (334), one end of the stop block (336) and one end of the connecting rod are rotatably connected to the frame (331) around a transverse rotation center line, and the other end of the connecting rod is flexibly connected with the flying screw; After the bullet-distributing coil (322) rotates 180 degrees, the other end of the stop block (336) rotates to a rolling path of the spherical bullet downward on the sloping plate (332); After the bullet distributing coil (322) is reset, the ball-shaped bullet on the inclined plate (332) pushes the stop block (336) open and rolls downwards into the bullet throwing hole (334).
  9. 9. The spherical bullet feeding device for pure steel calcium treatment according to claim 7, wherein a grid plate (335) positioned right above the bullet feeding hole (334) is arranged on the frame (331).
  10. 10. The spherical bullet feeding device for pure steel calcium treatment according to claim 1, wherein splash-proof curtains are arranged around the lower end of the steel platform (100).

Description

Spherical bullet feeding device for pure steel calcium treatment Technical Field The invention belongs to the technical field of metallurgical steelmaking, and particularly relates to a spherical bullet feeding device for pure steel calcium treatment. Background The calcium treatment is an external refining process which is necessary for clean steel, and a wire feeder is generally adopted to enable a cored wire to pass through a slag layer at a certain speed from the top of a steel ladle and reach a certain depth of molten steel so as to play roles of desulfurizing, removing impurities and improving purity. In the practical application process, the yield of calcium by the wire feeding method is too low (< 5%), the calcium treatment effect is unstable, the occurrence rate of faults such as wire breakage, wire sliding and wire running is high, and dust pollution is large, so that the method is saturated. At present, the patent document with the publication number of CN117660723A provides a novel calcium treatment method, which adopts an even-distribution bullet-throwing method, and specifically wraps low-density alloys such as calcium and the like in a spherical steel shell so as to ensure that the overall average density is greater than that of molten steel, thereby ensuring that alloy bullets are released at the bottom to be fed deeply and evenly, further ensuring that the yield of calcium is high, and further thoroughly eliminating the problems of uncontrollable concentration, high failure rate, large iron loss and large smoke dust in the traditional wire-feeding method calcium treatment process. However, the throwing device special for spherical calcium bullets in the patent document can only throw spherical bullets one by one, so that the calcium treatment process time is long, and in addition, the throwing device is easy to deform due to the influence of the radiation of molten steel in a steel ladle and long cantilever. Disclosure of Invention The invention provides a spherical bullet feeding device for pure steel calcium treatment, which overcomes the defects of the prior art and can realize automation, high efficiency and scale of calcium treatment on a reliable basis. The aim of the invention is achieved by the following technical scheme: a ball bullet feeding device for pure steel calcium treatment, comprising: the steel platform is positioned above the steel ladle, the lower end of the steel platform is provided with a heat insulation and fire resistance layer, the steel platform is provided with a plurality of vertical through holes which are distributed in rows and columns and are used for passing through spherical bullets, and the horizontal positions of the plurality of vertical through holes are all within the range of the horizontal positions of the ladle inner ladle cavity; the bullet throwing mechanism is provided with a plurality of bullet throwing ends which are used for throwing the bullets to a plurality of vertical through holes respectively; And the controller is electrically connected with the projectile throwing mechanism. Further, the bullet throwing mechanism comprises a plurality of bullet distributing modules, a plurality of bullet controlling and throwing modules for throwing the spherical bullets after temporary control and a plurality of spiral bullet bins which are vertically arranged and enable the spherical bullets to roll along a spiral line, wherein the plurality of spiral bullet bins are uniformly arranged along the longitudinal direction, the plurality of bullet distributing modules are uniformly arranged along the longitudinal direction, and the plurality of bullet controlling and throwing modules are distributed in rows and columns; The bullet-distributing module is uniformly provided with a plurality of bullet-distributing ends along the transverse direction, the output end of a spiral bullet bin is transversely communicated with all bullet-distributing ends of the bullet-distributing module, the bullet-controlling throwing module is vertically provided with a bullet-throwing end positioned right above the vertical through hole, and one bullet-distributing end is downwards communicated with one bullet-throwing end. Further, a spiral groove and a loading hole are formed in the spiral bullet bin, the axis of the spiral groove is vertical, the lower end of the loading hole is connected to the upper end of the spiral groove, and the lower end of the spiral groove is connected to the bullet distributing module through an opening and closing assembly. The opening and closing assembly further comprises a first baffle plate rotatably connected to the lower end of the spiral magazine, the lower end of the spiral groove is blocked after the first baffle plate rotates, and the lower end of the spiral groove is opened after the first baffle plate rotates reversely. Further, the upper end of the spiral magazine is provided with a lifting hole and/or The lower extreme in spiral