Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
  • B22D41/04—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like tiltable
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
  • B22D41/04—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like tiltable
  • B22D41/05—Tea-pot spout ladles

Definitions

• the present invention relates to a molten metal ladle.
• molten metal such as steel and aluminum has been taken out into a forging factory, put into a molten metal ladle, and transported to the factory or a remote manufacturing factory by a forklift or the like.
• An example of such a molten metal ladle is disclosed in Patent Document 1.
• a molten metal ladle 100 disclosed in Patent Document 1 includes a ladle body 102 having a pouring pipe 101 and an opening provided at the upper portion of the ladle body 102. And a lid 104 covering 103.
• the ladle body 102 has a cross-sectional structure in which a steel plate outer skin 105 is provided on the outermost side, and a lining layer 108 composed of a heat insulating material 106 and a refractory material 107 is provided on the inner side. Being! /
• Patent Document 1 Japanese Unexamined Patent Publication No. 2000-106935
• the present invention has been made to solve such a problem, and an object of the present invention is to provide a molten metal ladle that can easily and reliably remove scales and the like attached to the lining layer.
• the above object of the present invention is a molten metal ladle provided with a bottomed cylindrical ladle body having an opening in the upper part, the ladle body comprising an upper ladle and a lower ladle.
• the upper portion of the ladle is connected to the upper end of the lower portion of the ladle, and a lining layer is provided on the inner side of the upper portion of the ladle and the lower portion of the ladle.
• the innermost surface of the lining layer is achieved by a molten metal ladle that forms an inclined surface whose opening area decreases toward the edge of the opening.
• the inclined surface has a constant inclination angle over the edge of the opening in the longitudinal sectional view, the upper end force of the lining layer below the ladle.
• the lining layer is preferably formed of a heat insulating material and a refractory material.
• FIG. 1 is a (a) cross-sectional view and (b) AA cross-sectional view of a molten metal ladle according to an embodiment of the present invention.
• FIG. 2 is a cross-sectional view of a molten metal ladle according to another embodiment of the present invention.
• FIG. 3 is a cross-sectional view of a molten metal ladle according to another embodiment of the present invention.
• FIG. 4 is a sectional view showing a conventional molten metal ladle.
• FIG. 1 (a) is a sectional view of a molten metal ladle according to one embodiment of the present invention
• FIG. 1 (b) is an AA sectional view thereof.
• a molten metal ladle 1 is a pressurized pouring ladle, which includes a ladle body 10, a pouring pipe 30, a pressurizing portion 31, a lid 32, and a pair of legs. Parts 33 and 33 are provided.
• the ladle body 10 is formed in a cylindrical shape with a circular horizontal section, and the lower ladle 11 and the upper ladle 1 And two.
• the lower ladle 11 is a bottomed cylinder having the same outer diameter, and is connected to the upper ladle 12 at the upper end.
• an opening 13 smaller than the inner diameter of the bottom face of the lower ladle is formed in the upper part of the ladle upper part 12.
• the outer shape of the ladle upper part 12 is formed in a taper shape so that the horizontal section becomes smaller as the upper end force of the ladle lower part 11 is directed upward.
• the ladle lower part 11 and the ladle upper part 12 may be formed integrally or may be formed as separate bodies and connected by connecting members! / ⁇ .
• the cross-sectional structure of the ladle lower part 11 is provided with a steel plate outer skin 14 on the outer side, and a lower lining layer 17 made of a heat insulating material 15 and a refractory material 16 on the inner side so as to follow the shape.
• the ladle upper part 12 has a cross-sectional structure similar to that of the ladle lower part 11, and a steel plate outer skin 14 is provided on the outer side, and the heat insulating material 15 and An upper lining layer 18 made of refractory material 16 is provided.
• the innermost surface 18 a of the upper lining layer 18 is formed so as to be an inclined surface in which the opening area decreases from the upper end of the innermost surface 17 a of the lower lining layer 17 toward the edge of the opening 13.
• This inclined surface is formed so as to have a certain inclination angle from the upper end of the innermost surface 17a of the lower lining layer 17 to the edge of the opening 13 in the longitudinal sectional view of FIG.
• heat insulating material 15 for example, heat insulating brick, ceramic fiber felt, mortar, or the like can be used.
• refractory material 16 for example, refractory bricks, castable refractories, plastic refractories and the like can be used.
• the pouring pipe 30 has one end 30 a that is open near the bottom surface inside the ladle body 10 and the other end 30 b that is open outside the ladle body 10.
• the pressurizing unit 31 is formed to protrude obliquely upward from the ladle body 10 and includes a compressed air introduction pipe 31a.
• Compressed air supply means for example, a compressor
• the ladle body 10 may be pressurized with a compressed inert gas instead of compressed air.
• the lid 32 is provided on the top of the ladle body 10 so as to be openable and closable so as to cover the opening 13 of the ladle body 10.
• a steel plate outer skin 14 is provided on the outermost side, and a lid body tension layer 19 made of a heat insulating material 15 and a refractory material 16 is provided on the inner side.
• the pair of leg portions 33, 33 are provided on the bottom surface of the ladle body 10 so as to be parallel to each other.
• the leg portions 33, 33 are formed with fork pockets 33a, 33a for inserting the fork portion of the forklift so that the molten metal ladle 1 can be conveyed by the forklift.
• a removing tool such as a scraping bar
• washing and removing work such as scales adhering to the upper lining layer 18 and the lower lining layer 17 is performed.
• a removing tool such as a barb is inserted into the ladle body 10 from the opening 13 to remove scales and the like attached to the innermost surfaces 18a, 17a of the upper lining layer 18 and the lower lining layer 17. Do it by wiping it down.
• the innermost surface 18a 1S of the upper lining layer 18 provided on the inner side of the upper ladle 12 1S 1S the innermost surface of the lower lining layer 17 The opening area decreases from the upper end to the edge of the opening 13 Therefore, an operator who removes the scale, etc., can easily relax from the outside of the opening 13 without checking the state of adhesion of the scale etc. by inserting his / her face through the opening 13 etc.
• the scales and the like can be surely washed and removed while confirming the state of adhesion and removal of the scales and the like on the entire innermost surfaces 18a and 17a of the upper lining layer 18 and the lower lining layer 17 in a proper posture.
• the innermost surface 18a of the upper lining layer 18 provided on the inner side of the upper ladle 12 is directed from the upper end of the innermost surface 17a of the lower lining layer 17 to the edge of the opening 13 to reduce the opening area. Therefore, when molten metal is poured into the ladle lower part 11, a space is formed between the surface of the molten metal and the inner surface of the lid 32. As a result, even if the molten metal jumps inside the ladle body 10 during movement of the molten metal ladle 1 or during pouring of the molten metal, the molten metal adheres to the inner surface of the lid 32. The effect Can be prevented.
• the innermost surface 18a of the upper lining layer 18 that is an inclined surface extends from the upper end of the innermost surface 17a of the lower lining layer 17 to the edge of the opening 13 as shown in the sectional view of FIG. Since it is configured to have a certain inclination angle, it is possible to easily check the adhesion status and removal status of the scale etc. on the innermost surface 18a. In addition, when removing scales etc. attached to the innermost surface 18a of the upper lining layer 18, it is possible to carry out removal work of scales etc. without greatly changing the support posture of the removal tool such as a scraping bar. It becomes possible and quick removal work becomes possible.
• the innermost surface 18a of the upper lining layer 18 is inclined from the upper end of the innermost surface 17a of the lower lining layer 17 toward the edge of the opening 13 to reduce the opening area.
• the refractory material 15 such as refractory bricks constituting the upper lining layer 18 from falling. That is, since the refractory material 15 directly below supports a part of the weight of each refractory material 15, the tensile load in the direction of gravity generated on the lining surface of the refractory material 15 is reduced, and the refractory material 15 The fall can be effectively prevented.
• the angle ⁇ formed by the inclined line of the innermost surface 18a of the upper lining layer 18 and the line connecting the connection portion 20 and the edge of the opening 13 For example, when removing the scale attached to the innermost surface 18a with a straight bar, it is preferable to set the angle so that the bar and the edge of the opening 13 do not interfere with each other. An angle of ⁇ 30 ° is preferred.
• the outer shape of the ladle upper part 12 is formed so as to be tapered, but provided on the inner side of the ladle upper part 12, the outermost inner surface 18 a of the upper lining layer 18 is formed.
• the outer shape of the upper ladle 12 is not particularly limited as long as it is formed so as to have an inclined surface with a smaller opening area from the upper end of the lower lining layer 17 toward the edge of the opening 13, and the outer shape of the upper ladle 12 is not particularly limited.
• the shape may be a cylindrical shape having the same outer diameter over the entire height direction.
• molten metal ladle 1 compressed air or the like is blown into the ladle body 10 and pressurized, and the molten metal in the ladle body 10 is discharged out of the ladle.
• Pressurized pouring type for hot water The force that employs a molten metal ladle A tilting type molten metal ladle that pours water from the pouring port 51 by tilting the molten metal ladle as shown in Fig. 2 may be adopted.
• the innermost surface 18a of the upper lining layer 18 is constant from the upper end of the innermost surface 17a of the lower lining layer 17 to the edge of the opening 13 as shown in the sectional view of FIG. Although it is formed to be an inclined surface having an inclination angle, as shown in the sectional view of FIG. 3, it is a curved line that smoothly connects the upper end of the innermost surface 17a of the lower lining layer 17 and the edge of the opening 13. Form it to be an inclined surface.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
• Furnace Housings, Linings, Walls, And Ceilings (AREA)
• Continuous Casting (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=36614648

Family Applications (1)

Country Status (5)

Families Citing this family (6)

Citations (3)

Family Cites Families (8)

• 2004
  • 2004-12-28 JP JP2004379356A patent/JP3903321B2/ja active Active
• 2005
  • 2005-10-14 EP EP05793202A patent/EP1832363A4/de not_active Withdrawn
  • 2005-10-14 CN CNA2005800403942A patent/CN101065202A/zh active Pending
  • 2005-10-14 US US11/665,837 patent/US20090065987A1/en not_active Abandoned
  • 2005-10-14 WO PCT/JP2005/018925 patent/WO2006070522A1/ja active Application Filing

Patent Citations (3)

Non-Patent Citations (1)

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