JP2585173B2 - Melting furnace with slag removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing slag generated on the inner peripheral wall and bottom of a nonferrous metal melting furnace for aluminum and the like.

[0002]

2. Description of the Related Art Conventionally, slag generated on the inner peripheral wall and bottom of a non-ferrous metal melting furnace has been removed by removing the ceiling plate and manually removing the same.

[0003]

The manual stripping operation requires a great deal of labor, and is intended to be automated.

[0004]

The present invention will be described with reference to the drawings. According to the first invention, a circular plate-shaped ceiling plate 22 is rotatably mounted on a metal melting furnace main body 10, a skylight 23 is provided at an eccentric position of the ceiling plate 22, and a detachable tower 30 is attached to the skylight 23. And a cover plate 90, and the scraper 70 is fixed to the lower end of an elevating rod 60 movably attached to the tower 30. When the elevating rod 60 is lowered, the rotation trajectory T of the scraper 70 moves along the melting furnace body 10. It is configured so as to be close to the inner wall 11.

According to a second aspect of the present invention, an annular rail 12 is arranged along the upper edge of a metal melting furnace main body 10 having an inner wall 11 formed of an arc-shaped wall having a concentric diameter. The circular plate-shaped ceiling plate 22 is mounted rotatably, a skylight 23 is provided at an eccentric position of the ceiling plate 22, and a tower base 39 and a cover plate 90 which are detachable by moving devices 31 and 91 are provided on the skylight 23. , A tower main body 40 rotatable by a rotating device 44 is erected on the tower base 39,
The scraper 70 with the cooling fluid flow path is fixed to the lower end of the elevating rod 60 with the cooling fluid path, which is attached to the tower body 40 so as to be able to ascend and descend by the elevating device 51. The scraper 70 is configured such that the lower end thereof is close to the bottom 13 of the melting furnace body 10, and the rotation locus T of the scraper 70 is close to the inner wall 11 of the melting furnace body 10 at an arbitrary rotation position of the ceiling plate 22. I have.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 10 denotes a melting furnace main body, and 11 denotes an inner wall of the melting furnace main body 10 having an arc-shaped wall surface having a concentric diameter. Reference numeral 12 denotes a large annular rail provided along the upper edge of the melting furnace body 10;
Is a ceiling plate in which wheels 20 are arranged on a large annular rail 12 so as to be rotatable, and 14 is an upper wall of the melting furnace body 10 and a ceiling plate 22.
It is a sealing device comprising sand 15 in an annular groove and a downward annular ridge 24 provided between the lower surface and the lower surface. Reference numeral 25 denotes a gear-forming pin mounted around the ceiling plate, reference numeral 26 denotes a motor fixed to the furnace main body 10, and reference numeral 27 denotes a gear that is turned from the motor 26 via a speed reducer and meshes with the pin 25. Therefore, when the motor 26 rotates, the gear 27 rotates, and the ceiling plate 22 rotates, forming the rotating device 21.

A tower 30 comprises a tower base 39 and a tower body 40. Reference numeral 31 denotes a tower moving device including a vertical device 33 and a reciprocating device 34. Reference numeral 41 denotes a rotating bearing provided between the tower base 39 and the tower main body 40, reference numeral 42 denotes a motor with a speed reducer mounted on the tower main body 40, and reference numeral 43 denotes a pinion connected to the motor with speed reducer 42, which is mounted on the tower base 39. When the motor 42 with a speed reducer rotates, the tower main body 40 rotates, and these form a rotating device 44.

Reference numeral 60 denotes an elevating rod disposed in the tower body 40, and an upper half 61 has a rectangular cross section. Reference numeral 45 denotes an upper and lower guide roller disposed in the tower body 40, and allows only the vertical movement of the rectangular upper half 61 of the lifting rod. 53
The motor 52 is mounted on the tower body 40 to rotate the gear 52 forward and backward. Reference numeral 62 denotes a rack attached to the upper half 61 of the lifting rod, which meshes with the gear 52. Therefore, the elevating bar 60 moves up and down by the forward and reverse rotation of the motor 53. Reference numeral 70 denotes a scraper attached to the lower end of the lifting rod 60. 63 and 64 are a feed pipe and a delivery pipe connected to the upper end of the lift rod 60, respectively.
The cooling fluid Q flows through the cooling fluid flow path P provided in the cooling fluid flow path P.

Reference numeral 91 denotes a cover plate moving device comprising a vertically moving device 92 and a reciprocating device 93. The cover plate 90 is attached to and detached from the skylight 23.

[0010]

When the slag accumulates in the furnace body 10, the operation of the furnace body is stopped and the furnace body is cooled.

The cover plate 90 is removed by the moving device 91.

The tower 30 is moved to the skylight 2 by the moving device 31.
3 Lower.

The lifting rod 60 is lowered into the skylight 23.

The moving device 31 moves away from the tower base 30.

When the tower body 40 is turned, the scraper 70 rotates together. By the rotation of the ceiling plate 22, the rotation of the tower body 40, and the elevation bar 60, the scraper 70 can peel off the slag S at an arbitrary position on the inner wall 11 and the bottom 13 of the furnace body 10.

After stripping the slag S, the tower 30
Is returned to the predetermined position, and the tower 3
Then, the cover plate 90 is attached to the skylight 23.

[0017]

According to the present invention, the slag S generated in the furnace main body 10 can be removed without direct manual operation.

[Brief description of the drawings]

FIG. 1 is an overall schematic plan view.

FIG. 2 is a schematic front view showing a state during the removal of slag.

FIG. 3 is a schematic front view showing a state where a tower is attached and detached.

FIG. 4 is a schematic front view showing a state in which a cover plate is attached and detached.

FIG. 5 is a partial front view showing a ceiling plate rotating device.

FIG. 6 is a front view of the tower.

FIG. 7 is a side view of FIG. 6;

FIG. 8 is a sectional view taken along line AA of FIG. 7;

FIG. 9 is a sectional view taken along line BB of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Furnace main body 11 Inner wall 12 Large annular rail 13 Bottom 14 Sealing device 15 Sand 20 Wheel 21 Rotating device 22 Ceiling plate 23 Skylight 24 Downward annular ridge 25 Gear configuration pin 26 Motor 27 Gear 30 Tower 31 Moving device 32 Ring gear 33 Lifting device 34 Reciprocating device 39 Tower base 40 Tower body 41 Rotary bearing 42 Motor with reduction gear 43 Gear pinion 44 Rotating device 45 Guide roller 51 Lifting device 52 Gear 53 Motor 60 Lifting rod 61 Upper half 62 Rack 63 Feeding pipe 64 Outgoing pipe 70 Scrapper 90 Cover plate 91 Moving device 92 Vertical device 93 Reciprocating device P Fluid flow path Q Fluid S Slag T Rotary trajectory

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display F27D 23/02 F27D 23/02

Claims (2)

(57) [Claims] 1. A circular plate-shaped ceiling plate (22) is rotatably mounted on a metal melting furnace body (10), and a skylight (23) is provided at an eccentric position of the ceiling plate (22). 23), a detachable tower (30) and a cover plate (90) are provided, and a scraper (70) is fixed to the lower end of an elevating rod (60) attached to the tower (30) so as to be able to move up and down. A melting furnace with a dedusting device, characterized in that when the rod (60) is lowered, the rotation locus (T) of the scraper (70) is close to the inner wall (11) of the melting furnace body (10). 2. An annular rail (12) is arranged along an upper edge of a metal melting furnace main body (10) having an inner wall (11) formed of an arc-shaped wall having a concentric and the same diameter, and along the annular rail (12). A circular plate-like ceiling plate (22) is placed rotatably by a rotation device (21), a skylight (23) is provided at an eccentric position of the ceiling plate (22), and a moving device (51, A tower (30) and a cover plate (90) that can be attached / detached by 91) are provided, and a tower body (40) that can be rotated by a rotating device (44) is erected on the tower (30), and the tower body (40) When the scraper (70) with the cooling fluid flow path is fixed to the lower end of the elevating rod (60) with the cooling fluid path, which is mounted to be able to ascend and descend by the elevating device (51), and when the elevating rod (60) is lowered Lower end of scraper (70) passed through skylight (23) Is the bottom of the melting furnace (10) (1
3), and the scraper (7) at an arbitrary rotation position of the ceiling plate (22).
The rotation locus (T) of (0) corresponds to the inner wall (1) of the melting furnace body (10).
A melting furnace with a slag removing device, which is configured to be close to 1).