EP 0632242 B1 20000802 - Drying and/or heating of bulk material
Title (en)
Drying and/or heating of bulk material
Title (de)
Trocknung und/oder Erhitzung von rieselfähigem Material
Title (fr)
Séchage et/ou chauffage de matériau en vrac
Publication
Application
Priority
- CH 120494 A 19940420
- CH 199993 A 19930702
- DE 9318822 U 19931208
Abstract (en)
[origin: EP0632242A1] In order to dry and/or heat bulk material in a drying drum (1a/b), in particular in asphalt plants, the temperature of the waste gases of a burner (5a/b) which heats the drying drum (1a/b) is measured. In addition to this measured value, there is determined a measured value in connection with the material to be supplied to the drying and/or heating process and/or already undergoing the latter, and the inflow of the combustible medium and oxygen carrier for the burner (5a/b) is controlled as a function of the measured values. By this procedure, the heating and/or drying process for the material to be used is controlled in such a way that the process proceeds in a manner which is optimal in terms of fuel engineering, with low pollutant content in the waste gases. The apparatus for carrying out the process has a burner (5a/b) arranged in a drying drum (1a/b) rotatable about the longitudinal axis (2), a temperature-measuring device (22a/b) and a filter arrangement (17) for the burner waste gases, an adjusting device (31a/b, 32a/b) for adjusting the inflow of combustion medium and oxygen carrier, a measuring device (22a/b; 24a/b; 25a-f; 27a-f) for measuring at least one physical value of the material to be supplied to the drying and/or heating process and/or already undergoing the latter. <IMAGE>
IPC 1-7
IPC 8 full level
F26B 11/04 (2006.01); F26B 23/02 (2006.01); F26B 25/22 (2006.01)
CPC (source: EP)
F26B 11/04 (2013.01); F26B 23/02 (2013.01); F26B 25/22 (2013.01)
Designated contracting state (EPC)
AT CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0632242 A1 19950104; EP 0632242 B1 20000802; AT E195176 T1 20000815
DOCDB simple family (application)
EP 94108846 A 19940609; AT 94108846 T 19940609