Shutoff assembly and improved drive rod therefor
AssigneeDidier-Werke AG
InventorsRaimund Bruckner, Ullrich Hintzen, Steve Lee, Andreas Schuler, Martin Wiesel
Life of this patent
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Abstract
A shutoff and/or control assembly for use in regulating the discharge from a metallurgical vessel includes a refractory ceramic rotor member to be coupled to a stator to be rotated relative thereto to control discharge. A drive rod has an inner end extending into the rotor member and engaging therewith such that rotation of the drive rod causes rotation of the rotor member. At least an inner end portion of the drive rod is formed of a ceramic material.
Claims30
In a shutoff or control assembly for use in regulating the discharge from a metallurgical vessel and including a refractory ceramic rotor member to be coupled to a stator to be rotatable relative thereto to control discharge, and a drive rod separate from said rotor member and having an outer end to be connected to and rotated by a drive unit and an inner end portion extending into said rotor member and having engagement means engaging with an interior portion of said rotor member such that rotation of said drive rod causes rotation of said rotor member, the improvement wherein:
- at least said engagement means of said inner end portion of said drive rod is formed of a ceramic material.
In a drive rod to be employed with a refractory ceramic rotor member to form a shutoff or control assembly for use in regulating the discharge from a metallurgical vessel, said drive rod having an outer end to be connected to and rotated by a drive unit and an inner end portion to extend into the rotor member and including engagement means to engage an interior portion of the rotor member to transmit rotation thereto, the improvement wherein:
- at least said engagement means of said inner end portion of said drive rod is formed of a ceramic material.
Dependencies are inferred from the claim text.