Title:
湿灰のセメント添加装置及び添加方法
Document Type and Number:
Japanese Patent JP5147408
Kind Code:
B2
Abstract:
PROBLEMS To provide an apparatus and a method for adding wet ash to cement which make it possible to fed wet ash to a cement mill without generating cost for drying the wet ash and new setting space at the neighboring area of the entrance portion of the cement mill. MEANS FOR SOLVING PROBLEMS The apparatus comprises a dewaterer for dewatering wet ash, a mixer 7 for mixing the wet ash with one of materials that are mixed with clinker and ground together, and a feeder 11 for feeding the mixture to a cement mill 14. After dewatered, the wet ash with predetermined quantity is mixed with the one of the materials that are mixed with clinker and ground together and fed to the mill. The water content of the wet ash after dewatered is adjusted to 20 mass percent or below, preferably to 15 mass percent or below. A centrifugal separator can be used as the dewaterer, and a pug mill may be used as the mixer. Modified ash (fly ash slurry) from fly ash decarbonization facilities can effectively be used as the wet ash by feeding it to the cement mill.
Inventors:
Shinichiro Saito
Application Number:
JP2007542316A
Publication Date:
February 20, 2013
Filing Date:
October 17, 2006
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
International Classes:
C04B7/38
Domestic Patent References:
| JPH07213950A | 1995-08-15 | |||
| JP2005104792A | 2005-04-21 | |||
| JPH06335700A | 1994-12-06 | |||
| JPH05238788A | 1993-09-17 | |||
| JP2000024625A | 2000-01-25 |
Attorney, Agent or Firm:
Jun Nakai