CN201702356U

CN201702356U - Improved tank bottom structure of molten steel tank

Info

Publication number: CN201702356U
Application number: CN 201020226068
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: 2011-01-12
Anticipated expiration: 2020-06-15

Abstract

The utility model discloses a novel mounting structure of a trunnion for a molten steel tank in metallurgy, which can conveniently disassemble and replace the trunnion, reduce manufacturing cost and ensure accurate transverse positioning between the trunnion and a trunnion seat. The technical scheme provided by the utility model is that the trunnion and the trunnion seat are comprised; the trunnion is arranged on the trunnion seat; the trunnion and the trunnion seat are in an interference fit; and the trunnion seat is mounted on the tank wall of the molten steel tank. The improved tank bottom structure of the molten steel tank has the characteristic that the trunnion and the trunnion seat are fixed together via a compression ring.

Description

A kind of jar bottom structure of follow-on molten steel jar

Technical field

The utility model relates to technical field of metallurgical equipment, is specially a kind of 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 utility model provides a kind of 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, and 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 utility model, 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 the utility model molten steel jar.

The specific embodiment

See Fig. 3, the utility model structure 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

A follow-on molten steel jar the jar bottom structure, 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.