CN101837450A

CN101837450A - Improved ladle bottom structure of ladle

Info

Publication number: CN101837450A
Application number: CN 201010200673
Authority: CN
Inventors: 印午秋; 王凤良
Original assignee: WUXI JULI HEAVY INDUSTRY Co Ltd
Current assignee: WUXI JULI HEAVY INDUSTRY Co Ltd
Priority date: 2010-06-15
Filing date: 2010-06-15
Publication date: 2010-09-22

Abstract

The invention discloses an improved ladle bottom structure of a ladle, which can ensure the requirement on ladle bottom strength and smooth transition of stress at a circumferential weld of a ladle wall and a ladle bottom, effectively reduce the weight of the ladle, and reduce the cost. The improved ladle bottom structure comprises a ladle bottom plate and the ladle wall which are welded. The improved ladle bottom structure is characterized in that the thickness of an arc section in which the ladle bottom plate is connected with the ladle wall is 50-70 percent of the thickness of the ladle bottom plate.

Description

The jar bottom structure of follow-on molten steel jar

Technical field

The present invention relates to technical field of metallurgical equipment, be specially the jar bottom structure of follow-on molten steel jar.

Background technology

Traditional molten steel jar, it installs stiffener 2 additional usually for intensity at the bottom of guaranteeing jar on tank bottom 1, see Fig. 1, general plug welding or the riveted way of adopting is connected between tank bottom and the stiffener, if adopt the mode of plug welding, molten steel jar inside holds its high temperature of high-temperature molten steel and causes the steel plate welding deformation easily, and if adopt riveted way to connect, must guarantee at the bottom of its jar that certain thickness just can reach the requirement of riveted joint.In order to overcome the above problems, now also have and increase the thickness of tank bottom simultaneously being designed to single layer structure at the bottom of the jar, see Fig. 2, to reach requirement of strength, still, because tank bottom 3 increases with tank skin 4 thickness differences, the stress concentration phenomenon appears in the excessive unsmooth meeting of girth joint 5 stress of tank bottom and tank skin, and owing to increased the thickness of tank bottom, has also increased the weight of whole molten steel jar greatly, increased requirement, the processing cost height to the overhead traveling crane crane capacity.

Summary of the invention

At the problems referred to above, the invention provides the jar bottom structure of follow-on molten steel jar, it can guarantee a tank skin and a jar base ring commissure smooth transition of stress when guaranteeing jar end requirement of strength, and can effectively reduce molten steel jar weight, cost can be reduced.

Its technical scheme is such, and it comprises tank bottom and tank skin, welds between described tank bottom and the tank skin, it is characterized in that: its thickness skiving of the arc section that described tank bottom is connected with described tank skin is 50%～70% of a tank bottom thickness.

The jar bottom structure of molten steel jar of the present invention, it adopts the lamina bottom structure, has avoided in the past that doubling plate needs plug welding or riveted joint, guarantees a jar end intensity; Simultaneously, reduce the thickness of tank bottom and tank skin junction arc section, can effectively guarantee tank bottom and tank skin commissure smooth transition of stress, reduced a jar end weight simultaneously.

Description of drawings

Fig. 1 is the low structural representation of molten steel jar doubling plate jar in the past;

Fig. 2 is molten steel jar lamina jar bottom structure schematic diagram in the past;

Fig. 3 is the jar bottom structure schematic diagram of molten steel jar of the present invention.

The specific embodiment

See Fig. 3, structure of the present invention comprises tank bottom 3 and tank skin 4, welding between tank bottom 3 and the tank skin 4, and arc section 6 its thickness skivings that tank bottom 3 is connected with tank skin 4 are 50%～70% of tank bottom thickness.Among Fig. 3,7 is that tank bottom 3 is connected arc section skiving part with tank skin 4.

Claims

1. the jar bottom structure of follow-on molten steel jar, it comprises tank bottom and tank skin, welds between described tank bottom and the tank skin, it is characterized in that: its thickness skiving of the arc section that described tank bottom is connected with described tank skin is 50%～70% of a tank bottom thickness.