Checking General Condition; Adapting The Cleaning Procedure Of The Probe - ABB ProKiln GAC400 Operating Instruction

ProKiln GAC400 PROBE GAS SAMPLING SYSTEM | OI/GAC400-EN REV. A

Checking general condition

Condition of the probe sampling system
When the probe sampling system is in operation, monitor the
general condition of the system on a daily basis:
Module Check general condition of retractor with regard to
Retractor including • general damage
probe • missing or loose covers
• visible damage to electric cables
• hose and tube leaks
• drive chain:
– chain tension slack is approx. 1"
– chain link wear
• gas sampling probe:
– signs of wear (e.g. polished metal surfaces)
Cooling system • general damage
• missing or loose covers
• visible damage to electric cables
• hose and tube leaks
• cleanliness of heat exchanger dissipation fins
Control cabinet • general damage
• missing or loose covers
• visible damage to electric cables
• dripping water or other liquids, internal condensation
Compressed-air • visible damage
tank (optional) • air leakage
If there are any defects that impact safety, inform the
responsible maintenance personnel. If cleaning is necessary,
follow the instructions in Checking the condition of the system,
cleaning the system on page 102
Checking the duct opening/process flange
Check the duct opening for clogging at regular intervals and
clean if necessary.
Note
Inserting the gas sampling probe when the duct opening is
clogged can lead to damage to the probe. The same applies to
re-inserting the gas sampling probe after prolonged standstill of
the sampling system.
Special case: Calciner gas outlet
Because of the greater flow speeds in this process, after start-up
the gas sampling probe must be checked frequently for wear at
the calciner gas outlet measuring point. If distinct signs of wear
are visible after a short time, check the installation position of
the gas sampling probe and correct it if necessary. Failing to
observe this can lead to severe damage or total loss of the gas
sampling probe. In the event of significant wear, special
protection or an alternative position must be introduced.
Contact ABB service for assistance/advice.
Adapting the cleaning procedure of the
probe
Cleaning processes
You can start a cleaning process as follows:
• Clean in MANUAL mode (on the HMI at the control cabinet)
• Clean in AUTOMATIC mode (time-controlled)
• Clean in AUTOMATIC mode (remote control via network
connection)
• Clean in AUTOMATIC mode (by monitoring vacuum at the gas
analyser system, only in combination with AO2000-System)
Clean in MANUAL mode
In MANUAL mode you can start the cleaning process in the
cleaning dialog (Menu ► Cleaning).
The following buttons are available:
Button Procedure
Start The cleaning sequence as defined on this page will be initiated
Stop The cleaning sequence will stop
Vx7 Will initiate customer's external Air blaster air cannon
V1 Will initiate probe centre-nozzle cleaning by probe's air blaster
V2 Will initiate probe filter periphery cleaning by probe's air blaster
V3 Will initiate probe filter blow-back cleaning by probe's air blaster
V5.3 Will initiate probe pressure release valve in sample heated line (if
available)
V5.2 Will initiate opening of heated sample shut-off valve (if available)
69