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CN-224227164-U - Protective transition cover of atmosphere protective electroslag remelting furnace

CN224227164UCN 224227164 UCN224227164 UCN 224227164UCN-224227164-U

Abstract

The utility model discloses a protective transition cover of an atmosphere protection electroslag remelting furnace, which comprises a transition cover arranged on the protective cover of the atmosphere protection electroslag remelting furnace, wherein a plurality of groups of connecting holes are formed in the periphery of the transition cover, connecting pieces are arranged in the connecting holes, a plurality of groups of fixing holes matched with the connecting pieces are formed in the protective cover of the atmosphere protection electroslag remelting furnace, and the transition cover is connected to the fixing holes through the connecting pieces. Compared with the traditional bolt fixing mode, the utility model can realize more convenient and rapid installation and disassembly through the structures such as the connecting piece, the reset spring and the like, does not need to use special tools, greatly simplifies operation steps and reduces maintenance time.

Inventors

  • XIE ZHIYUAN
  • ZHANG PENGCHENG
  • LIU YIQI
  • JIAO QI

Assignees

  • 江苏天工爱和科技有限公司

Dates

Publication Date
20260512
Application Date
20250414

Claims (8)

  1. 1. A protective transition cover (1) of an atmosphere protection electroslag remelting furnace is characterized by comprising a transition cover (1) arranged on a protective cover (2) of the atmosphere protection electroslag remelting furnace, wherein a plurality of groups of connecting holes (101) are formed in the periphery of the transition cover (1), connecting pieces (3) are arranged in the connecting holes (101), A plurality of groups of fixing holes (201) matched with the connecting piece (3) are arranged on the protective cover (2) of the atmosphere protection electroslag remelting furnace, Wherein the transition cover (1) is connected to the fixing hole (201) through the connecting piece (3).
  2. 2. The protective transition cover (1) of the atmosphere protective electroslag remelting furnace as claimed in claim 1, wherein the connecting piece (3) comprises an outer bushing (301) arranged in the connecting hole (101), a reset groove (302) is formed in the upper portion of the outer bushing (301), an L-shaped positioning groove (3021) is formed in the reset groove, and a connecting bolt (303) is connected in the reset groove (302) in a sliding mode.
  3. 3. The protective transition cover (1) of the atmosphere protective electroslag remelting furnace as claimed in claim 2, wherein rolling ball grooves (3011) are formed in two sides of the lower part of the outer lining (301), and positioning ball beads (304) are connected to the inner parts of the rolling ball grooves (3011).
  4. 4. A protective overhood (1) for an atmosphere protecting electroslag remelting furnace as claimed in claim 3, wherein a return spring (305) is provided inside the return groove (302), and the return spring (305) is located below the connecting pin (303) so that the connecting pin (303) is elastically moved inside the return groove (302) by the return spring (305).
  5. 5. The excess protection cover (1) for an atmosphere protecting electroslag remelting furnace as claimed in claim 4, wherein a limit lining plate (3031) is arranged at the upper part of the connecting bolt rod (303), positioning plates (3033) matched with L-shaped positioning grooves (3021) are arranged at two sides of the limit lining plate (3031), and the outer diameter of the limit lining plate (3031) is matched with the inner diameter of the reset groove (302) so that the limit lining plate (3031) limits the travel of the connecting bolt rod (303).
  6. 6. The protective transition cover (1) of an atmosphere protective electroslag remelting furnace as claimed in claim 5, wherein an arc-shaped groove (3032) is formed on the outer peripheral side of the connecting bolt rod (303) so that the positioning ball (304) rolls down to the inner side of the outer lining (301) through the arc-shaped groove (3032).
  7. 7. The protective transition cover (1) of an atmosphere protective electroslag remelting furnace as claimed in claim 6, wherein the opening diameter of the rolling ball groove (3011) positioned on the outer lining (301) is smaller than the diameter of the positioning ball (304), and the rolling ball groove (3011) is obliquely arranged at the lower part of the inner wall side of the outer lining (301) so that the positioning ball (304) rolls into the outer lining (301) by gravity.
  8. 8. The protective transition cover (1) of an atmosphere protective electroslag remelting furnace as claimed in claim 7, wherein an annular groove (202) matched with a positioning ball (304) is formed on the inner peripheral side of the fixing hole (201).

Description

Protective transition cover of atmosphere protective electroslag remelting furnace Technical Field The utility model relates to a protective transition cover of an atmosphere protective electroslag remelting furnace. Background The electroslag remelting technology is a special metallurgical method for remelting and refining consumable electrodes and resolidifying the consumable electrodes into steel ingots in a water-cooling crystallizer through slag heat resistance. The method has the remarkable characteristics of slag washing refining, sequential solidification, no large-scale inclusion of cast ingot, small macro and micro segregation, and uniform components and tissues. The requirement of the protective atmosphere electroslag furnace on the slag adding speed, the slag adding amount and the oxygen content of the slag charge of the solid protective slag is extremely high. The basic principle of electroslag remelting of a large steel ingot is the same as that of electroslag remelting of a medium and small steel ingots, but because the electroslag remelting current of the large steel ingot reaches tens of amperes, the inductance causes great voltage drop of a network, in addition, the smelting time is long, the smelting time of one steel ingot can reach tens of hours to hundreds of hours, and the slag composition is greatly changed. The greatest disadvantage of electroslag remelting is that the smelting process cannot remove hydrogen, which is more harmful to large steel ingots, and based on the problems, a slag adding machine for electroslag remelting large steel ingots must take special technological measures. In the slag adding process, the slag adding machine is ensured to add slag into the crystallizer at a constant speed, and the transition cover plays a vital role. The existing connection mode of the protective cover and the main body equipment is usually fixed by adopting a simple bolt, special tools are needed for installing and detaching the protective cover, the operation steps are complex, the time consumption is long, and the difficulty and the cost of equipment maintenance are increased. Thus, a protective overhood for an atmosphere-protecting electroslag remelting furnace is proposed. Disclosure of utility model The utility model aims to provide a protective transition cover of an atmosphere protective electroslag remelting furnace, which aims to solve the problems that in the prior art, a connection mode of a protective cover and main body equipment is usually fixed by adopting a simple bolt, special tools are required to be used for mounting and dismounting, the operation steps are complex, and the time consumption is long. In order to solve the technical problems, the utility model provides the technical proposal that the protective transition cover of the atmosphere protection electroslag remelting furnace comprises a transition cover arranged on the protective cover of the atmosphere protection electroslag remelting furnace, wherein the periphery of the transition cover is provided with a plurality of groups of connecting holes, connecting pieces are arranged in the connecting holes, A plurality of groups of fixing holes matched with the connecting piece are arranged on the protective cover of the atmosphere protection electroslag remelting furnace, Wherein, the excessive cover is connected to the fixed orifices department through the connecting piece. Preferably, the connecting piece is including setting up in the connecting hole outer bush, is located reset groove has been seted up on the upper portion of outer bush, is located reset inslot portion has seted up "L" form constant head tank, reset inslot portion sliding connection has the connection bolt pole. Preferably, rolling ball grooves are formed in two sides of the lower portion of the outer lining sleeve, and positioning ball beads are connected to the inner portions of the rolling ball grooves. Preferably, a reset spring is arranged in the reset groove, and the reset spring is positioned below the connecting bolt rod, so that the connecting bolt rod elastically moves in the reset groove through the reset spring. Preferably, the upper part of the connecting bolt rod is provided with a limit lining plate, two sides of the limit lining plate are provided with positioning plates matched with the L-shaped positioning grooves, and the outer diameter of the limit lining plate is matched with the inner diameter of the reset groove so that the limit lining plate limits the stroke of the connecting bolt rod Preferably, an arc-shaped groove is formed in the outer peripheral side of the connecting bolt rod, so that the positioning ball rolls to the inner side of the outer lining through the arc-shaped groove. Preferably, the diameter of the opening of the rolling ball groove positioned on the outer bushing is smaller than the diameter of the positioning ball, and the lower part of the rolling ball groove positioned on the inner wall side of