XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 3939
located near Aachen, Germany. The tests are conducted at
this particular facility on a FLS Raptor 250 cone crusher.
PLANT INFORMATION AND SYSTEM
CONFIGURATIONS
The GeoScanner was installed at the product side of a
Raptor 250 cone crusher in August 2022, and after three
months of trial running, the online signal was connected
to the FLSmidth Field Agent, making it viewable from the
SiteConnect app. A validation test was performed on-site
in December 2022 and subsequent analysis was conducted.
The principal aim of the validation test is to:
Validate the GeoScanner’s accuracy in measuring the
PSD of crushed products, within the size range of
1 mm to 45 mm.
Assess the signal’s consistency across various crusher
CSS adjustments.
Inspect the condition of the equipment following a
3-month trial run.
Develop plans for further tests, based on the valida-
tion results.
The site flowsheet is depicted in Figure 1. Within this
Heidelberger facility, there exists a recycling crushing
circuit with one vibrating screen and a Raptor 250 cone
crusher. The feed material size fed to the Raptor is up to
150 mm, and the target product P80 is below 17 mm. The
installation of the system is shown in Figure 2 and Figure 3.
Three CSS of the cone crusher are adjusted to
13 mm, 15 mm, and 17 mm.
For each CSS, three samples are taken from the con-
veyor belt. The position of the samples is marked
with paint, and their timestamp is recorded.
Each sample weighs approximately 4kg and is 50 cm
wide on the conveyor belt.
The samples are subsequently sieved by a sieving
machine and then compared with the GeoScanner
readings from the corresponding timestamp.
As a result of the validation test of the installed PSD
system, its accuracy and robustness have been confirmed.
Additionally, we have observed that the product of the
crusher is not solely influenced by crusher settings but also
depends on the feed material size. Without feed particle
size distribution information, measuring only the output
particle size cannot provide a comprehensive analysis of the
cone crusher’s performance. Therefore, in November 2023,
an additional GeoScanner at the feed side was installed, see
Figure 1. Schematic flowsheet of the test plant
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