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:
Sep. 29, 2009
Filed:
Feb. 16, 2005
Jens Peter Hansen, Köpenhamn Ö, DK;
Lars Skaarup Jensen, Vallensbaek, DK;
Jens Peter Hansen, Köpenhamn Ö, DK;
Lars Skaarup Jensen, Vallensbaek, DK;
FLSMIDTH A/S, , DK;
Abstract
Described is a method as well as an apparatus for hydration of a particulate or pulverulent material containing CaO. The method is peculiar in that water is added in a quantity which will ensure that the partial pressure Pof the added water as a function of the temperature (° C.) is maintained within the interval defined by the formula (I), where Pis the partial pressure of water vapour in atm. and T is the temperature in ° C. Hereby is obtained that the material particles do not lump into agglomerates, and that the particles are hydrated evenly from the outside and inwards so that it is the active surface of the material particles which undergoes hydration in connection with partial hydration. This is due to the fact that the liquid water will not get into contact with the material particles since the water will appear in vapour form within the specified interval.