SAPROPEL DRYING METHOD Russian patent published in 2007 - IPC F26B3/06 

FIELD: drying of wet sapropel mass after preliminary dehydration and reduction of moisture content by at least half the total moisture content.

SUBSTANCE: method involves applying wet sapropel mass onto rectangular grates; positioning grates in sealed chamber and blowing grates with heated air until sapropel is dried to needed moisture content; cleaning grates by means of brushes from dried sapropel and feeding the latter into receptacle device. Grates are united into cassettes. Grates are filled with wet sapropel mass by dipping grates of each cassette into tank with continuously or periodically replenished sapropel mass. Each of cassettes is, thereafter, into row in closely abutting relationship with respect to one another within channel, said grates being oriented along said channel, wherein heated air is fed.

EFFECT: reduced costs for sapropel drying process, when required capacity is not great.