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CN-224222736-U - Ladle nozzle filling device

CN224222736UCN 224222736 UCN224222736 UCN 224222736UCN-224222736-U

Abstract

The utility model provides a ladle nozzle filling device which comprises a fixed table, a fixed pulley, a filling pipe, a steel wire rope and a balancing weight, wherein the fixed pulley is arranged on the fixed table, two ends of the steel wire rope are all positioned below the fixed table, one end of the steel wire rope is connected with the upper end of the filling pipe, the other end of the steel wire rope bypasses the fixed pulley and then is connected with the balancing weight, the balancing weight is used for adjusting the lifting height of the filling pipe, a positioning cylinder is sleeved at the lower part of the filling pipe, the filling pipe is pulled to enable the filling pipe to descend, and when the lower end of the filling pipe is in contact with the inner wall of a ladle nozzle, drainage sand can be filled into the ladle nozzle through the filling pipe. The filling device can ensure that the filling quantity of the drainage sand accurately accords with the process standard, a hilly filling form with high middle and low periphery is formed in the water gap after filling is finished, the smooth outflow of the solid drainage sand during casting is ensured, and the self-opening rate of the ladle water gap is improved.

Inventors

  • KE CHAO

Assignees

  • 大冶特殊钢有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (10)

  1. 1. The ladle nozzle filling device is characterized by comprising a fixed table, a fixed pulley, a filling pipe, a steel wire rope and a balancing weight, wherein, The fixed pulley is arranged on the fixed table, two ends of the steel wire rope are positioned below the fixed table, one end of the steel wire rope is connected with the upper end of the filler pipe, the other end of the steel wire rope bypasses the fixed pulley and then is connected with the balancing weight, and the balancing weight is used for adjusting the lifting height of the filler pipe; a positioning cylinder is sleeved at the lower part of the filling pipe; the filler pipe is pulled to enable the filler pipe to descend, and when the lower end of the filler pipe is in contact with the inner wall of the ladle nozzle, drainage sand can be filled into the ladle nozzle through the filler pipe.
  2. 2. The ladle nozzle packing apparatus according to claim 1, wherein, The ladle nozzle is provided with a nozzle pocket brick, the shape of the nozzle pocket brick is a hollow frustum, the upper end of the nozzle pocket brick is a large end, and the lower end of the nozzle pocket brick is a small end; The lower end of the packing pipe and the lower end of the positioning cylinder are positioned on the same plane, the outer diameter of the positioning cylinder is smaller than the inner diameter of the upper end of the nozzle pocket brick, and the outer diameter of the positioning cylinder is larger than the inner diameter of the lower end of the nozzle pocket brick.
  3. 3. The ladle nozzle packing apparatus according to claim 1, wherein, The outer diameter of the positioning cylinder is 150mm-180mm, The height of the positioning cylinder is 130mm-150mm.
  4. 4. Ladle nozzle filling device according to claim 1, wherein The thickness of the positioning cylinder is 10mm-15mm.
  5. 5. The ladle nozzle packing apparatus according to claim 1, wherein, The fixed pulleys are provided with 2 fixed pulleys, and the heights of the 2 fixed pulleys are the same.
  6. 6. The ladle nozzle packing apparatus according to claim 1, wherein, The upper end of the positioning cylinder is connected with the filler pipe through a welding block, the longitudinal section of the welding block is triangular, one right-angle side of the welding block is connected with the filler pipe in a welding way, and the other right-angle side of the welding block is connected with the upper end of the positioning cylinder in a welding way.
  7. 7. The ladle nozzle packing apparatus according to claim 6, wherein, And a plurality of welding blocks are uniformly arranged along the circumferential direction of the positioning cylinder.
  8. 8. The ladle nozzle packing apparatus according to claim 7, wherein, The welding blocks are provided with 3-4 blocks.
  9. 9. The ladle nozzle packing apparatus according to claim 1, wherein, And a filling platform is arranged above the ladle nozzle, and when the lower end of the filling pipe is positioned in the ladle nozzle, the upper end of the filling pipe is 20-30 mm higher than the filling platform.
  10. 10. The ladle nozzle packing apparatus according to claim 1, wherein, The height of the filler pipe is 5400mm-5500mm.

Description

Ladle nozzle filling device Technical Field The utility model relates to the technical field of smelting equipment, in particular to a ladle nozzle filling device. Background The ladle nozzle mainly comprises a nozzle pocket block, an upper nozzle and an upper sliding plate. After hot repair, the middle slide plate, the lower slide plate, the middle hole channel of the water outlet and the water outlet channel of the ladle water outlet are in a dislocation state. Before tapping, the ladle car is moved to the position below the filling platform, then the filling pipe is lowered to align with the ladle nozzle, and the drainage sand is added from the top to flow into the ladle nozzle. In the refining process, the top of the drainage sand and molten steel are subjected to sintering reaction to form an upper sintering layer and a lower sand-fixing layer, and the reasonable structure and shape of the sintering layer-sand-fixing layer are preconditions for ensuring automatic casting of molten steel after a water gap is opened during ladle casting, so that molten steel can automatically flow out during ladle casting. When casting is started, the middle slide plate, the lower slide plate and the middle hole channel of the water outlet are aligned with the water outlet channel, the solid drainage sand flows out of the water outlet and the middle hole channel of the slide plate at first, and the molten steel of a receiver breaks through the drainage sand sintering layer under the action of static pressure to flow out automatically. The existing filling pipe adopts a tubular structural design with an upper horn mouth and a tubular bottom, and performs filling operation by adjusting lifting through a counterweight. However, the existing filler pipe has three main defects that firstly, the bottom of the filler pipe is easy to shake when aligning with a water gap due to no counterweight, meanwhile, the filler pipe is easy to rebound due to the counterweight design, the operation is difficult, the alignment accuracy is low, and the filler operation is inconvenient, secondly, the quantity of drainage sand actually entering the water gap is reduced due to shaking, the height of a sintering layer is insufficient, a sand fixing layer becomes thin and even disappears, automatic casting is seriously affected, and finally, the ideal hilly filler appearance becomes a pit or a slope due to shaking, so that the shape of the sintering layer is abnormal, and the casting stability is further reduced. Disclosure of utility model The utility model aims to provide a ladle nozzle filling device, by using the filling device to fill drainage sand into a ladle nozzle, the filling quantity of the drainage sand can be ensured to accurately accord with the process standard, the drainage sand can form a reasonable sintered layer-sand fixing layer structure in the ladle nozzle, the smooth outflow of solid drainage sand during casting is ensured, and the self-opening rate of the ladle nozzle is improved. In order to achieve the above object, the present utility model provides the following technical solutions: The steel ladle water gap filling device comprises a fixed table, a fixed pulley, a filling pipe, a steel wire rope and a balancing weight, wherein the fixed pulley is arranged on the fixed table, two ends of the steel wire rope are located below the fixed table, one end of the steel wire rope is connected with the upper end of the filling pipe, the other end of the steel wire rope bypasses the fixed pulley and then is connected with the balancing weight, the balancing weight is used for adjusting the lifting height of the filling pipe, a positioning cylinder is sleeved on the lower portion of the filling pipe, the filling pipe is pulled to enable the filling pipe to descend, and when the lower end of the filling pipe contacts with the inner wall of a steel ladle water gap, drainage sand can be filled in the steel ladle water gap through the filling pipe. Further, in the ladle nozzle filling device, the ladle nozzle is provided with the nozzle pocket brick, the shape of the nozzle pocket brick is a hollow frustum, the upper end of the nozzle pocket brick is a large end, the lower end of the nozzle pocket brick is a small end, the lower end of the filling pipe and the lower end of the positioning cylinder are positioned on the same plane, the outer diameter of the positioning cylinder is smaller than the inner diameter of the upper end of the nozzle pocket brick, and the outer diameter of the positioning cylinder is larger than the inner diameter of the lower end of the nozzle pocket brick. Further, in the ladle nozzle filling device, the outer diameter of the positioning cylinder is 150-180 mm, and the height of the positioning cylinder is 130-150 mm. Further, in the ladle nozzle filling device, the thickness of the positioning cylinder is 10mm-15 mm. Further, in the ladle nozzle filling device, 2 fixed pulleys are arranged, and the heights o