The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 2004
Filed:
Jun. 26, 2002
Vassilios Burdis, Butzbach, DE;
Shin G. Kang, Simsbury, CT (US);
Srivats Srinivasachar, Sturbridge, MA (US);
Majed Toqan, La Celle St. Cloud, FR;
Alstom Technology LTD, Baden, SE;
Abstract
In a method of producing cement clinker and electricity, cement raw mix and hydrocarbon are fed in a circulating fluidized bed boiler ( ). Therein cement raw mix is calcined and steam is produced. Gas and solids out of the fluidized bed enter a cyclone ( ), the solids being separated therein and returned to the bed. Part of those solids are first cooled down in a solids heat exchanger ( ) producing steam. Fly ash consisting predominantly of lime and gas escaping the cyclone are passed through a heat exchanger ( ) and a filter ( ). Hot bed material is discharged from the circulating fluidized bed and is ground with additives, then blended with lime being separated in the filter ( ), then supplied to a rotary kiln ( ), wherein the solids are clinkered. The produced steam is fed to a steam turbine island ( ).