A double-tube automatic slag feeder for wide slab crystallizer

Abstract

The invention relates to a double-pipe automatic slag feeder for a wide slab mold. The double-pipe automatic slag feeder comprises a frame, a micro-alignment mechanism, a distribution area rectangular compensation mechanism, a slag feeding mechanism and an electric control system. A driving motor (8) pushes a displacement compensation horizontal moving table (11) through a sleeve shaft speed reducer (9) and drives a first slag feeding pipe (16) and a second slag feeding pipe (29) to linearly move, an outer ring of a ball bearing (1903) of a guide block (19) is embedded into a distribution area rectangular compensation arc-shaped guide groove (31) and can freely roll and guide, so that the first slag feeding pipe (16) and the second slag feeding pipe (29) are driven to linearly move in a reciprocating manner, the guide block swings in an opening and closing manner in a horizontal plane, and rectangular area distribution is realized. A fine adjustment handle (25) is turned, the position of the central axis of a slag feeding mechanism can be adjusted, a slag feeding area and a mold containing cavity are accurately aligned, and the slag feeding area is rectangular and convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of automatic feeding equipment for mold slag in continuous casting molds, and in particular relates to a double-pipe automatic slag adding machine for wide slab molds. Background technique [0002] In wide slab continuous casting, adding mold powder to the surface of molten steel in the crystallizer is an essential key process. Mold slag contains a certain amount of fluorine. At present, my country's iron and steel enterprises mainly use manual methods to add slag. Workers work in a fluorine-containing environment for a long time, and their health is easily damaged. Moreover, artificial slag is added randomly, and the thickness of the slag layer is uneven, which is easy to cause problems such as slag curling and affect the surface and internal quality of the billet. [0003] At present, some enterprises in our country have introduced the double-pipe swinging cloth slag adding machine produced by Siemens-VAI...

AI Technical Summary

Problems solved by technology

Workers work in a fluorine-containing environment for a long time, and their health is easily damaged. Moreover, the randomness of artificial slag addition is large, and the thickness of the slag layer is uneven, which is easy to cause problems such as slag curling and affect the surface and internal quality of the slab.

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