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1. (WO2017035670) METHOD FOR PRODUCING ASPHALT, USE OF SUPERHEATED STEAM IN THE PRODUCTION OF ASPHALT, AND DEVICE FOR REDUCING THE RESIDUAL MOISTURE OF A BULK MATERIAL

Pub. No.:    WO/2017/035670    International Application No.:    PCT/CH2015/000124
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Tue Sep 01 01:59:59 CEST 2015
IPC: E01C 19/05
E01C 19/10
Applicants: ESPRIA GMBH
Inventors: WÜTHRICH, Andreas
Title: METHOD FOR PRODUCING ASPHALT, USE OF SUPERHEATED STEAM IN THE PRODUCTION OF ASPHALT, AND DEVICE FOR REDUCING THE RESIDUAL MOISTURE OF A BULK MATERIAL
Abstract:
The invention relates to a method for producing asphalt (304) from a bulk material (301), which has residual moisture, and from bitumen (302). The bulk material (301) is supplied with superheated steam in order to reduce the residual moisture in the bulk material (301), and the bulk material (302) with reduced residual moisture is mixed with bitumen (303) in order to obtain asphalt (304). The invention also relates to the use of superheated steam in the production of asphalt and to a device (200, 300, 400) for reducing the residual moisture of a bulk material.