Apparatus for automatically punching the tuyeres of a converter
AssigneeSumitomo Metal Mining Co., Ltd.
InventorsYasuro Tomoda, Masaki Aizawa, Osamu Isshiki, Shigetoshi Maeda
Life of this patent
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Abstract
In an apparatus for punching the tuyeres of a converter for smelting of copper or nickel, the apparatus including a carrier frame supported by wheels and which is capable of moving on the working platform located adjacent to the converter, the carrier frame mounting a plurality of punch rods which can reciprocatingly extend into respective tuyeres to remove deposits therein. An electric motor is employed to drive the carrier frame and an electrical control system controls the operation of the electric motor and thus the movement of the carrier frame so that the correct positioning of the punch rods with respect to the tuyeres on a converter can be automatically achieved.
Claims10
In an apparatus for punching the tuyeres of a converter for smelting of copper or nickel, the converter including a converter body and converter tuyeres, said tuyeres being uniformly spaced along a line extending longitudinally of the converter body, the apparatus including a carrier frame which is mounted on wheels so as to be movable on a working platform located adjacent to said converter, said carrier frame having supported thereon a plurality of aligned punch rods which are mounted so as to be reciprocatingly movable with respect to said carrier frame and movable into corresponding tuyeres for removing deposits therein, and the apparatus including an electric motor for driving said carrier frame on said working platform, the improvement wherein:
- a pulse generator is mounted on said carrier frame and wherein means are provided for driving said pulse generator by said electric motor,
- a detector is mounted on said carrier frame so as to extend towards said converter and sense the converter tuyere therepast,
- and a control system is operatively connected to said carrier frame to control both the operation of the electric motor and thus the movement of the carrier frame on said working platform and the reciprocating movement of said aligned punch rods, said control system including a counter means for counting the pulses generated by said pulse generator and a current control means connected to operate said electric motor, said current control means being operated by signals emitted from said counter means and said detector.
Dependencies are inferred from the claim text.