Internal cooling conveying roller way for metallurgical process

Abstract

The invention discloses an internal cooling conveying roller way for a metallurgical process and belongs to the technical field of metallurgical equipment. The problems that the cooling direction of a roller body of an internal cooling conveying roller way is not clear, and cooling media in and out of an inner cavity of the roller way are mixed and interwoven together are solved. An internal cooling guide cylinder is installed in a conveying roller way roller body, the outer cylindrical surface of the internal cooling guide cylinder is matched with the inner cylindrical surface of a roller main body to form a matching space, and an inner hole of the internal cooling guide cylinder is tightly matched with the outer cylindrical surface of a cooling medium guide-in cylinder installed in the center of the conveying roller way; a crack cooling layer is formed in the matching space between the outer cylindrical surface of the internal cooling guide cylinder and the inner cylindrical surface of the roller main body; and a rotary joint is connected and mounted on the end surface of a driven side shaft head of the conveying roller way through a bolt. A cooling loop is totally closed in the whole process, one-way flowing is achieved, inlet water and return water are completely separated, the roller body cooling effect is enhanced, the roller surface temperature is effectively reduced, and the purposes of low deformation and long service life are achieved.

Description

technical field [0001] The invention belongs to the technical field of metallurgical equipment, in particular to an internal cooling conveying roller table for metallurgical process. Background technique [0002] Roller transport in the metallurgical process is an important link in the production process, used to transport or run various billets (such as continuous casting billets). The temperature of the transported slab and other objects is relatively high. Through contact heat transfer, convective heat transfer and heat radiation, the overall temperature of the conveying roller table rises, and the temperature of the roller surface rises more obviously. The working conditions are very harsh. After a period of use , the roller body produces additional thermal deformation, its mechanical properties, strength and wear resistance are significantly reduced, and the probability of cracks in the special type of slab conveyed increases, thereby affecting the quality of the slab. ...

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problem of unclear direction of cooling for the roller body of the internal cooling conveying roller table, and the problem that the cooling medium entering and leaving the inner cavity of the roller table is mixed and intertwined. It implements enhanced directional cooling on the roller body of the conveying roller table, so that the cooling medium enters the water and the water exits it completely. The roller body of the conveying roller table is quickly discharged through the rotary joint, and the roller body of the conveying roller table is forcibly cooled according to the outlet water temperature, and the temperature of the complete conveying roller table is controlled below 70°C, thereby improving the life of the conveying roller table

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