US 12,077,474 B2
Production of foamed sand using near infrared
Rainer Gaus, Freiburg im Breisgau (DE)
Assigned to ThermProTEC GmbH, Kehl-Marlen (DE)
Filed by ThermProTEC GmbH, Kehl-Marlen (DE)
Filed on Oct. 5, 2023, as Appl. No. 18/481,378.
Application 18/481,378 is a division of application No. 16/641,319, granted, now 11,814,319, previously published as PCT/DE2018/100731, filed on Aug. 24, 2018.
Claims priority of application No. 102017119371.5 (DE), filed on Aug. 24, 2017.
Prior Publication US 2024/0034677 A1, Feb. 1, 2024
Int. Cl. C04B 20/06 (2006.01); B01D 45/16 (2006.01); B01J 19/12 (2006.01); C04B 14/06 (2006.01); C04B 20/00 (2006.01); C04B 38/00 (2006.01)
CPC C04B 20/066 (2013.01) [B01D 45/16 (2013.01); B01J 19/128 (2013.01); C04B 14/06 (2013.01); C04B 20/002 (2013.01); C04B 38/0093 (2013.01); B01J 2219/0801 (2013.01); B01J 2219/0869 (2013.01); B01J 2219/0879 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An arrangement for producing a bulk material essentially from foamed or blown mineral or oxidic particles by thermal treatment of a bed of basic particles, the arrangement comprising:
a flat arrangement of NIR halogen radiators for generating a NIR radiation field of radiation whose essential active component is in a near infrared, NIR, range having a wavelength in a range between 0.8 μm and 1.5 μm and which has a power density of at least 50 kW/m2 for thermally treating the basic particles;
a conveying device for transporting a layer or stream of the bed of basic particles through the radiation field; and
a controller that controls heating of the bed of basic particles such that a maximum temperature in the layer or in the stream is in a temperature range between 600 and 1500° C.