Cooling water circulating device for continuous casting roller set

Abstract

The invention discloses a cooling water circulation device for a continuous casting roll group, which comprises a bearing seat, a bearing cover, a rolling bearing and a mandrel, one end of the mandrel is provided with a press ring, and a rotary joint is connected to the outer side of the press ring , the outer side of the rotary joint is provided with a first water inlet and a first water outlet, and the inside of the mandrel is provided with a first through hole and a second through hole in the axial direction, and the first through hole and the second A first cooling pipe and a second cooling pipe are correspondingly arranged in the through hole, the first water inlet is connected to the first cooling pipe, and the first water outlet is connected to the second cooling pipe; the bearing seat The lower end of the valve block is provided with a valve block, the lower end of the valve block is provided with a second water inlet and a second water outlet, and the inner ring of the bearing seat is provided with a cooling water tank. The invention improves the effect of cooling and crystallization of the continuous casting roll group, reduces the occurrence of secondary faults, improves the operation stability and prolongs the service life.

Description

【Technical field】 [0001] The invention relates to the technical field of continuous steel casting equipment, in particular to a cooling water circulation device for continuous casting roll groups. 【Background technique】 [0002] Continuous casting is the abbreviation of continuous steel casting. In the process of producing various steel products in steel plants, there are two methods of using molten steel to solidify and form: the traditional die casting method and the continuous steel casting method. The continuous casting technology that appeared in European and American countries in the 1950s is an advanced technology that directly pours molten steel into shape. Compared with traditional methods, continuous casting technology can greatly improve the metal yield and billet quality. , energy saving and other significant advantages. In the continuous casting technology, the cooling water circulation device is one of the essential components. The cooling water is connected t...

AI Technical Summary

Problems solved by technology

When in use, since the rotary joint is positioned by the bearing seat, when the radial clearance of the bearing is too large or collapses, the mandrel supported by the bearing will not be concentric with the bearing seat, that is, the rotary joint will not be concentric with the mandrel. Causes damage to the rotary joint, water leakage, and reduced cooling effect, causing greater failure

Further, due to long-term high-load use, the bearing and bearing seat are overheated, the service life of the bearing is short, and the maintenance cost is high

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