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Patent Searching and Data


Title:
FLUIDIZED CALCINER
Document Type and Number:
WIPO Patent Application WO/2016/129523
Kind Code:
A1
Abstract:
Provided is a fluidized calciner that makes it possible to reduce the uncombusted percentage at the fluidized calciner outlet and adequately conduct calcining while preventing blockage of a preheater even when using coal or oil coke having poor combustibility in fuel. A fluidized calciner is formed in a cylindrical shape having a central axis along the vertical direction and is equipped with: a furnace body having, at the bottom, a fluidized air blowing port via which fluidized air is blown into the interior; a fuel blowing line via which fuel is blown into the interior of the furnace body, said fuel blowing line being connected to a side portion of the furnace body; a raw material chute via which cement raw materials are charged, said chute being connected to a side portion of the furnace body; and a bleed conduit for leading bleed air into the furnace body, said conduit being connected to a side portion of the furnace body. An extension of the straight line of the central axis of the bleed conduit is offset from the diametral line of the furnace body in a cross-section perpendicular to the central axis of the furnace body, and the ratio (S/R) between the distance S from the diametral line of the furnace body parallel to the central axis of the bleed conduct to the inner wall surface in the furthest position of the bleed conduit and the inner radius R of the furnace body 11 is set to 0.50 to 0.91.

Inventors:
WANG, Junzhu (Central Research Institute 1002-14, Mukohyama, Naka-sh, Ibaraki 02, 〒3110102, JP)
TAKAYAMA, Yoshinori (Central Research Institute 1002-14, Mukohyama, Naka-sh, Ibaraki 02, 〒3110102, JP)
Application Number:
JP2016/053524
Publication Date:
August 18, 2016
Filing Date:
February 05, 2016
Export Citation:
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Assignee:
MITSUBISHI MATERIALS CORPORATION (3-2 Otemachi 1-chome, Chiyoda-ku Tokyo, 17, 〒1008117, JP)
International Classes:
C04B7/45; F27D3/16; F27D3/18
Foreign References:
JPH08231254A1996-09-10
JPS5263931A1977-05-26
JPS61136944A1986-06-24
JPS5113828A1976-02-03
Attorney, Agent or Firm:
AOYAMA, Masakazu (Seiyo Patent Office, 3F Shin-Chiyoda Kyodo Bldg. 3-3-9, Kandakajicho, Chiyoda-k, Tokyo 45, 〒1010045, JP)
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