vrm comissioning check ups

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1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Recommended hydraulic fluid with level checking. Check position of ball valves. Check and calibrate pressure transmitters. Remove the entrapped air Before gear unit oil pump 30-40 min oprn,check oil level Erection of gear box, pumps, monitoring instruments Direction of motor Heat exchanger Oil tank should be cleaned. RAW MILL SECTION Gear Box Hydraulic system Equipments outside connections. Check all control and measuring equipments Gear unit started -no load, if everything normal - 8 hrs Check oil quantity for foaming Check all safety Interlocks with mill drive in test condition Gear unit oil in quantity and quality Direction of LP and HP motors Flushing of hydraulic system before starting. Voltage of elect. Eqpt should be checked. Hydro pneumatic accumulators must be charged. Direction of pump motor Run the pump for 10 min at zero pr., check oprn of all dir. valves at low pr. During above test check continuously level, temp and tightness. Fix the measuring scale. Adjust the proximity for material bed. Filters to be cleaned or changed. Vertical Roller Mill for raw material grinding Check completion of erection. Remove all residual materials. Check the software programme for hydraulic system. Fill the roller brg with correct oil- quantity and quality. Check proper seating of rollers in bowl. Set the roller horizontally. Adjust the proximity for material bed. Check and record initial wear profile. Check motor, GB coupling and direction of motor. Check water spray, seal air and close all nozzle rings. Check installation of all measuring instruments. Crosscheck and reconfirm the hyd sys. logics and interlock with main drive. Check MD and magnetic separator in feed belt. Start the mill feed, hyd sys at start pr and make a bed of 30-50 mm. Check reject divertor.

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Vertical roller mill Pre -Comissioning Check Ups

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Page 1: Vrm Comissioning Check Ups

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Recommended hydraulic fluid with level checking.

Check position of ball valves.

Check and calibrate pressure transmitters.

Remove the entrapped air

Before gear unit oil pump 30-40 min oprn,check oil level

Erection of gear box, pumps, monitoring instruments

Direction of motor

Heat exchanger

Oil tank should be cleaned.

RAW MILL SECTION

Gear Box

Hydraulic system

Equipments outside connections.

Check all control and measuring equipments

Gear unit started -no load, if everything normal - 8 hrs

Check oil quantity for foaming

Check all safety Interlocks with mill drive in test condition

Gear unit oil in quantity and quality

Direction of LP and HP motors

Flushing of hydraulic system before starting.

Voltage of elect. Eqpt should be checked.

Hydro pneumatic accumulators must be charged.

Direction of pump motor

Run the pump for 10 min at zero pr., check oprn of all dir. valves at low pr.

During above test check continuously level, temp and tightness.

Fix the measuring scale.

Adjust the proximity for material bed.

Filters to be cleaned or changed.

Vertical Roller Mill for raw material grinding

Check completion of erection.

Remove all residual materials.

Check the software programme for hydraulic system.

Fill the roller brg with correct oil- quantity and quality.

Check proper seating of rollers in bowl.

Set the roller horizontally.

Adjust the proximity for material bed.

Check and record initial wear profile.

Check motor, GB coupling and direction of motor.

Check water spray, seal air and close all nozzle rings.

Check installation of all measuring instruments.

Crosscheck and reconfirm the hyd sys. logics and interlock with main drive.

Check MD and magnetic separator in feed belt.

Start the mill feed, hyd sys at start pr and make a bed of 30-50 mm.

Check reject divertor.