Device for connecting converter body and trunnion ring

Abstract

The invention discloses a device for connecting a converter body and a trunnion ring. The device comprises a trunnion ring support frame fixed on the lower cover plate of the trunnion ring and a furnace body support frame fixed on the converter body, wherein the trunnion ring support frame comprises a pair of baffle seats and a cover plate for connecting the pair of baffle seats; the opposite sides of the pair of baffle plates are respectively provided with a second supporting plate and a spherical support in turn; the supporting plate and the spherical support is in planar contact connection; the two sides of the furnace body support frame corresponding to the spherical support are provided with spherical pads; the spherical pads and the spherical support are in spherical clearance contact connection; and the furnace body support frame is sandwiched between a pair of baffle plates. The connecting device can effectively adjust the radial and axial relative displacement of the converter body in the trunnion ring generated by temperature change, absorbs distortion stress in the process of frequent heavy-duty overturning motion of the converter body, ensures that the converter body cannot bounce, ensures the normal operation of key equipment of a converter and improves the equipment capacity of the converter.

Description

technical field [0001] The invention relates to the technical field of steelmaking equipment, in particular to a connection device between a converter body and a support ring. Background technique [0002] Modern converter steelmaking technology has been relatively mature, and there are many forms of connection devices between the converter body and the support ring, such as suspension support plates, clamps (support bracket clamps, clamp clamps), hanging connection devices ( Flange bolt connection device, three-point spherical support connection device, tie rod suspension connection device), plate-type flexible connection device (also known as thin belt connection device), etc. Each of these connection devices has its own advantages and disadvantages. In order to obtain a better connection effect, a connection method in which multiple connection devices are used together is usually used. A commonly used connection method such as figure 1 As shown, the upper part of the su...

AI Technical Summary

Problems solved by technology

However, in the process of steelmaking, the converter body 2 needs to perform frequent heavy-duty tilting movements. Under the action of high-temperature oxygen smelting and alternating stress, the converter body 2 will inevitably produce plastic deformation, and its distortion deformation The internal stress needs to be released, and the aforementioned rigid support bracket holder 4 cannot meet this need, thus presenting an abnormal state of the lower horizontal support

During the steelmaking process, the converter will produce abnormal tilting noise, and even the ball joint 3 nut between the converter body 2 and the support ring 1 will loosen or the support bracket holder 4 will deform, resulting in tearing of the weld seam ,There are security risks

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