Title:
TREATMENT DEVICE AND TREATMENT METHOD FOR CHLORINE BYPASS DUST
Document Type and Number:
WIPO Patent Application WO/2011/162101
Kind Code:
A1
Abstract:
The disclosed device and method enable chlorine bypass dust to be treated whilst maintaining a stable cement quality and preventing an increase in drug costs and the concentration of heavy metals in a clinker. In a chlorine bypass facility (1) which cools and bleeds part (G) of combustion gas from a kiln exhaust gas flow channel, running from a cement kiln (2) kiln tail to a bottom-stage cyclone, and collects high chlorine concentration chlorine bypass dust (D5) from bled gas (G1), a solid content is obtained by bringing SO2 gas and/or CO2 gas, and a slurry (S) which contains chlorine bypass dust into contact. The slurry containing chlorine bypass dust, and exhaust gas from a cement kiln and/or a chlorine bypass facility can be brought into contact and the solid content can be supplied to a cement finishing process, and thus the inclusion ratio of CaO and Ca(OH)2 is low, and cement can be manufactured with stable physical properties during setting time and the like.
Inventors:
TERASAKI Junichi (TAIHEIYO CEMENT CORPORATION 2-4-2, Osaku, Sakura-sh, Chiba 55, 〒2858655, JP)
寺崎 淳一 (〒55 千葉県佐倉市大作二丁目４番２号 太平洋セメント株式会社中央研究所内 Chiba, 〒2858655, JP)
寺崎 淳一 (〒55 千葉県佐倉市大作二丁目４番２号 太平洋セメント株式会社中央研究所内 Chiba, 〒2858655, JP)
Application Number:
JP2011/063133
Publication Date:
December 29, 2011
Filing Date:
June 08, 2011
Export Citation:
Assignee:
TAIHEIYO CEMENT CORPORATION (3-5 Daiba 2-chome, Minato-ku Tokyo, 78, 〒1358578, JP)
太平洋セメント株式会社 (〒78 東京都港区台場二丁目３番５号 Tokyo, 〒1358578, JP)
TERASAKI Junichi (TAIHEIYO CEMENT CORPORATION 2-4-2, Osaku, Sakura-sh, Chiba 55, 〒2858655, JP)
太平洋セメント株式会社 (〒78 東京都港区台場二丁目３番５号 Tokyo, 〒1358578, JP)
TERASAKI Junichi (TAIHEIYO CEMENT CORPORATION 2-4-2, Osaku, Sakura-sh, Chiba 55, 〒2858655, JP)
International Classes:
C04B7/60; B09B3/00
Attorney, Agent or Firm:
NAKAI Jun (#210 Win Shinjuku Wakamatsucho, 25-17Wakamatsucho,Shinjuku-k, Tokyo 56, 〒1620056, JP)
Claims: