Page 34 - Critical Control flipbook_Neat
P. 34
CRITICAL CONTROLS
Contact with Hot Meal
Early Detection
Prevent major exposures to hot meal by triggering process adjustments
including automatic kiln emergency shutdown.
Critical sensors and interlocks are inspected, Cyclone blockage signal (delayed)
maintained and tested. automatically starts kiln shutdown.
Kiln back-end is frequently inspected High alarm triggers SOP process adjustments
and monitored. by operator (up to kiln shutdown).
Blockage
detection
Blockage
detected
SOP
End-to-end trip
testing
• Sensor/detector
• Control system
(PLC)
• Actuator/
end-element
© 2022 Holcim
