US 12,123,650 B2
Cooler and a method for cooling bulk material
Stefanie Richter, Oelde (DE); Ludwig Koenning, Ahlen (DE); and Jochen Altfeld, Münster (DE)
Assigned to thyssenkrupp Polysius GmbH, Beckum (DE); and thyssenkrupp AG, Essen (DE)
Appl. No. 17/768,803
Filed by thyssenkrupp Industrial Solutions AG, Essen (DE); and thyssenkrupp AG, Essen (DE)
PCT Filed Oct. 12, 2020, PCT No. PCT/EP2020/078560
§ 371(c)(1), (2) Date Apr. 13, 2022,
PCT Pub. No. WO2021/074055, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 2019/5691 (BE), filed on Oct. 14, 2019; and application No. 10 2019 215 731.9 (DE), filed on Oct. 14, 2019.
Prior Publication US 2024/0093941 A1, Mar. 21, 2024
Int. Cl. F27D 15/02 (2006.01); C04B 7/47 (2006.01); C04B 7/48 (2006.01)
CPC F27D 15/0213 (2013.01) [C04B 7/47 (2013.01); C04B 7/48 (2013.01); F27D 2015/026 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for cooling bulk material in a fine material cooler, the method comprising:
admitting bulk material to be cooled into the fine material cooler through a material inlet, wherein the bulk material has a fine material proportion of 70% to 95% and a coarse material proportion of 5% to 30%, wherein the fine material has a grain size of 10−5 mm to 4 mm and the coarse material has a grain size of 4 mm to 100 mm;
conveying the coarse material with a first mechanical or pneumatic conveying unit; and
conveying the fine material independently of the course material with a second conveying unit in a conveying direction through the fine material cooler to a material outlet.