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Patent Searching and Data


Title:
OPERATING METHOD FOR METAL REFINING FURNACE
Document Type and Number:
WIPO Patent Application WO/2019/163607
Kind Code:
A1
Abstract:
Provided is an operating method for a metal refining furnace that can control against deformation of a furnace body due to expansion of refractories of the metal refining furnace. Displacement meters 8-1 through 8-42 are disposed around a furnace body 2 at predetermined intervals, the overall displacement of the furnace body 2 is periodically measured at predetermined timing, and when displacement in at least one location exceeds a preset upper-limit value, control is performed so as to reduce the operating temperature in the furnace body 2 such that the displacement of the furnace body 2 is brought down to at most the upper-limit value. In addition, the renewal time for the furnace body 2 is determined from a residual linear expansion coefficient of the furnace body 2 and a displacement limit of frames constituting the furnace. Consequently, not only can expansion and deformation of the furnace body 2 be kept within a predetermined range, but the furnace materials can also be renewed at appropriate timing.

Inventors:
MOTOMURA Tatsuya (3-3382, Oaza Saganoseki, Oita cit, Oita 01, 〒8792201, JP)
KAWASAKI Tomoya (3-3382, Oaza Saganoseki, Oita cit, Oita 01, 〒8792201, JP)
YUKISATO Takehide (3-3382, Oaza Saganoseki, Oita cit, Oita 01, 〒8792201, JP)
CHIDA Hiroshi (3-3382, Oaza Saganoseki, Oita cit, Oita 01, 〒8792201, JP)
Application Number:
JP2019/005123
Publication Date:
August 29, 2019
Filing Date:
February 13, 2019
Export Citation:
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Assignee:
PAN PACIFIC COPPER CO., LTD. (1-2 Otemachi 1-chome, Chiyoda-ku Tokyo, 47, 〒1008147, JP)
International Classes:
C22B15/00; C22B5/02; F27D19/00; F27D21/00
Attorney, Agent or Firm:
SAITO Seiichi (ODA-SAITO GLOBAL ASSOCIATES, Okamotoya Bldg. 8F 1-24, Toranomon 1-Chome, Minato-k, Tokyo 01, 〒1050001, JP)
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