Title:
METHOD FOR THE OPERATION OF A MILL AT CONTINUOUS INPUT AND OUTPUT MASS FLOWS
Document Type and Number:
WIPO Patent Application WO/2012/072315
Kind Code:
A3
Abstract:
The invention relates to a method for operating a mill (1) at continuous input and output mass flows (5, 7, 9, 23), and to the mill (1), wherein a process model based on power balance equations and mass balance equations is used. Characteristic process variables (11, 13, 19, 25, 27, 31) can be measured in a simple manner outside the mill (1). Characteristic process variables which are still not known can be ascertained by means of inserting the measured values into a respective power balance equation, assuming that the other process variables are in each case known or are insignificant. On this basis, the mill (1) can be actuated in an optimum manner in order to provide a high output power.
Inventors:
HELD HARALD (DE)
METZGER MICHAEL (DE)
STEINKE FLORIAN (DE)
METZGER MICHAEL (DE)
STEINKE FLORIAN (DE)
Application Number:
PCT/EP2011/067248
Publication Date:
July 26, 2012
Filing Date:
October 04, 2011
Export Citation:
Assignee:
SIEMENS AG (DE)
HELD HARALD (DE)
METZGER MICHAEL (DE)
STEINKE FLORIAN (DE)
HELD HARALD (DE)
METZGER MICHAEL (DE)
STEINKE FLORIAN (DE)
International Classes:
B02C25/00; G05B13/04
Domestic Patent References:
| WO2007124981A1 | 2007-11-08 | |||
| WO2007110466A1 | 2007-10-04 |
Foreign References:
| DE19922449A1 | 2000-11-16 |
Other References:
RAJ K. RAJAMANI ET AL: "Optimal control of a ball mill grinding circuit-I. Grinding circuit modeling and dynamic simulation", CHEMICAL ENGINEERING SCIENCE, vol. 46, no. 3, 1 January 1991 (1991-01-01), pages 861 - 870, XP055020054, ISSN: 0009-2509, DOI: 10.1016/0009-2509(91)80193-3
Attorney, Agent or Firm:
SIEMENS AKTIENGESELLSCHAFT (München, DE)
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