公开(公告)号：US20140318446A1

公开(公告)日：2014-10-30

申请号：US14270620

申请日：2014-05-06

Applicant: Yara International ASA

Inventor： Francois LEDOUX ,  Luc VANMARCKE ,  Howard VOLKE ,  Peter de BAKKER ,  Remco de FOUW ,  Roeland ELDERSON

IPC: B05C9/12 ,  B05C3/02

CPC classification number: B05C9/12 ,  B01J2/16 ,  B05C3/02

Abstract: A method for processing of granules, by forming at least one injection zone in a fluidized bed where a feed stream of seed particles is contacted or coated by a liquid product by simultaneous injection of the feed stream of the seed particles and a feed stream of the liquid product, forming at least one granulation zone in the fluidized bed where the contacted or coated seed particles may be at least one of dried, shaped, and cooled to form granules, extracting the granules from the at least one granulation zone and sorting the extracted granules into undersize granules, on-size granules, and oversize granules, passing the on-size granules to post-processing treatment, removing the oversize granules, and passing the undersize granules back into the feed stream of the seed particles, wherein the extracted granules are made to pass through at least one classifier located in the at least one granulation zone.

Abstract translation: 一种处理颗粒的方法，通过在流化床中形成至少一个注射区，其中种子颗粒的进料流通过同时注入种子颗粒的进料流和液体产物的进料流与液体产物接触或涂覆 在流化床中形成至少一个造粒区，其中接触或涂覆的种子颗粒可以是干燥，成型和冷却以形成颗粒中的至少一种，从至少一个造粒区提取颗粒并将提取的 颗粒形成尺寸过小的颗粒，大小颗粒和过大的颗粒，将尺寸颗粒通过后处理处理，去除过大的颗粒，并将过滤的颗粒返回到种子颗粒的进料流中，其中提取的颗粒 使其通过位于至少一个造粒区域中的至少一个分级器。