chp precommissioning checklist

7/30/2019 CHP Precommissioning Checklist

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CHP PRECOMMISSIONING CHECKLIST

MECHANICAL

CONTENTS

NO. TITLE Checklist Ref.no

1.

2.

3.

4.

5.

6.

7.

8.

SECTION-A

Conveyor Belt

Skirt Board

Chute Vibrator

Vibro feeder

Belt Feeder

Rack and Pinion Gate

Flap Gate

Belt Scraper / Belt Cleaner

1.00.00

2.00.00

3.00.00

4.00.00

5.00.00

6.00.00

7.00.00

8.00.00



MECHANICAL

STATION : STANDARD CHECK LIST SHEET 1 OF 4

PLANT ITEM : CONVEYOR BELT

PLANT NOMENCLATURE: _________________________________________________

UNIT____________________________ SYSTEM _________________________________

MANUFACTURER ___________________ SRL. NO. __________________________

LOCATION: _______________________________________________________________

NO. ACTIVITYWITNESSED

DATENHI SPL

1.

2.

3.

4.

5.

Check that installation of conveyor is complete as per theapproved drawing.

Check erection records for the correct alignment of boltidler supports w.r.t. conveyor centre line.

Check that all the idlers/rollers supports are properlytightened with correct size of bolts.

Check the correct leveling of belt pulleys.

Gear box has been tested as per its check list.

REMARKS :

Checklist Ref.no-1.00.00



MECHANICAL




DATENHI SPL

6.

7.

8.

9.

10.

Check fluid coupling with gear box and motor alignment.Record reading.

Check all the idler and bottom rollers and self aligning

rollers are installed.

Any build up of material on idlers rollers and drumsremoved.

Check that there are no sharp corners in the structureupon which the belt may be damaged.

Check the belt joints record.

i. Check joint details.ii. Overlapping length of jointiii. Vulcanizing temperature.iv. Time taken for vulcanizing.v. Time allowed for cooling.

All these checks can be made directly either during thebelt jointing or from the erection records and above detailsmust be in accordance with the belt manufacturer’srecommendation for their type of belt.

REMARKS :




MECHANICAL




DATENHI SPL

11.

12.

13.

14.

15.

16.

17.

Check the position of take up pulley on its traverse. Thereshould be adequate margin in the take-up device to copewith belt elongation during load run of the belt.

Check the weight of the counter weights applied.

Check that there is no sag on the belt in between theidlers.

Skirt boards check lists complete.

Check the loading chutes clearance between the belt andlip of the chute, so that there will be no entrapment of material.

Check the unloading chute for adequate clearancebetween the lip of the chute and face of the pulley. Thisshould be more than twice the largest piece of materialthat is to be conveyed.

Check that the belt scraper and return belt cleaner havebeen installed and check list is complete.

Check that the pull cord switches are installed andcommissioned.

REMARKS :




MECHANICAL





MECHANICAL


PLANT ITEM : SKIRT BOARD


UNIT____________________________ SYSTEM _________________________________


LOCATION: _______________________________________________________________


DATENHI SPL

1.

2.

3.

4.

5.

Installation is complete as per the drgs.

Width of skirt plates should be about 2/3 of belt width.

The rubber strips used should be less hard than the belt.

Length of the skirt plates should not be less than 1200 mm.

The skirts should flare upwards in the running direction of belt travel in order to prevent any wedging of material.

REMARKS :


MECHANICAL




PLANT ITEM : CHUTE VIBRATOR


UNIT____________________________ SYSTEM _________________________________


LOCATION: _______________________________________________________________


DATENHI SPL

1.

2.

3.

4.

5.

The installation is complete in accordance with approved

drawing and specification.

Check that its local control panel is commissioned.

Check that its local control panel is commissioned.

Charge the chute vibrator and observe the operation at nocoal flow.

Charge the chute vibrator under coal flow and observe theperformance.

REMARKS :


MECHANICAL




PLANT ITEM : VIBROFEEDER


UNIT____________________________ SYSTEM _________________________________


LOCATION: _______________________________________________________________


DATENHI SPL

1.

2.

3.

4.

5.

The installation is complete in accordance with approveddrawings and specifications.

All the nuts and bolts are properly tight.

Clearance between the vibrating part and fixed part isminimum 50 mm.

Check that universal coupling joint coincides with arrowmark on the fork.

Check that all the 4 weights on two fly-wheel segments of unbalanced exciter are fully secured.

REMARKS :


MECHANICAL




PLANT ITEM : VIBRO FEEDER

NO. ACTIVITY WITNESSED DATENHI SPL

6.

7.

8.

9.

10.

11.

12.

13.

14.

Check for the correct level of the exciter base. Check theseating area of exciter on its frame from the erectionchecks records.

Check that universal joint shaft is in level with exciter shaftline or level?

Check for the correct oil level in the bearing housing of

exciter.

Check for correct lubrication of universal Joints. Applylithium saponified grease (i.e. acid free and alkali free).

Check that the local control panel is commissioned.

Check that Vibro feeder motor is tested as per the testprocedure.

Give the clearance for connection of exciter with motor.

Charge the Vibro feeder from local panel and observe theoperation record the amplitude.

Issue the initial operation certificate.

REMARKS :


MECHANICAL




PLANT ITEM : BELT FEEDER


UNIT____________________________ SYSTEM _________________________________


LOCATION: _______________________________________________________________


DATENHI SPL

1.

2.

3.

4.

5.

Installation is complete according to general assemblydrawing.

Check the alignment of bolt feeder from erection records.

Check that all the roller supports have been correctlytightened with the correct size of nuts and bolts.

Check the alignment of both sides (Left & right gear boxeswith the driving and driven shafts).

Check that both gear boxes have been checked as per itsstandard check list.

REMARKS :


MECHANICAL






DATE

NHI SPL

6.

7.

8.

9.

10.

11.

12.

13.

14.

Check the correct leveling of driving pulley and tail pulley.

Check that the screw take up has been installed. Note theposition of take up pulley.

Check that all the rollers have been installed and arerotating freely.

Check that there is no sag on belt.

Check that both motors (left & right) have been checked asper the standard check list.

Check that lubrication of:

i. All the rollers.ii. Bearing of driving and tail pulleyiii. Gear boxes.

Check that all the dust guard has been fitted.

Run the belt feeder from local panel.

Check that bolt is running straight and not touchingstationary parts.

REMARKS :


MECHANICAL





NO. ACTIVITY WITNESSED DATENHI SPL

15.

16.

17.

18.

19.

Check for any abnormal sound from gear boxes.

Check the take up pulley position and bolt sag. Adjust thetake up pulling position its adjusting serow if required.

Run the feeder for 8 hrs.

Take lag sheet readings hourly.

Following a satisfactory trial run issue the initial runcertificate.

REMARKS :




BELT FEEDER NO: LOG SHEET FOR BELT FEEDER SHEET 4 OF 4

Sl.No. DATE TIME

MOTOR CURRENTGEAR BOXTEMP.

Whether Belt RunStraight

Sag on Belt Adjustment intake up Pulley.

REMARKS.

Left Right Left Right

MOTOR STARTING CURRENT -MOTOR STARTING TIME -

NHI : CONTRACTOR :



MECHANICAL


PLANT ITEM : RACK AND PINION GATE


UNIT____________________________ SYSTEM _________________________________


LOCATION: _______________________________________________________________


DATENHI SPL

1.

2.

3.

4.

Installation is complete according to the general assemblydrawing.

Racks are mounted on rigid and level frame.

Installation of all the rollers for the rack assembly iscomplete and all the rollers are rotating freely.

Check the lubrication of :

1. Gear Coupling.2. Racks.3. Pinion shaft bearings (Two hos).

REMARKS :




MECHANICAL


PLANT ITEM : RACK AND PINION GATE


DATENHI SPL

5.

6.

7.

8.

9.

Check that the motor has been tested as per its standardcheck list.

Operate the gate first by hand and check that it is openingeasily and quite freely.

Operate the gate electrically and check that it is operatingquite freely.

Check the operation for both opening and closing.


REMARKS :




MECHANICAL


PLANT ITEM : FLAP GATE


UNIT____________________________ SYSTEM _________________________________


LOCATION: _______________________________________________________________


DATENHI SPL

1.

2.

3.

4.

5.

Installation is complete according to the General assemblydrawing.

Travel adjustment limit switches for operation of flap gate inboth directions have been provided.

Check that electrical actuator has been installed.

Operate the flap gate in one direction.

Check that limit switch operates at the end of travel andactuator stops.

REMARKS :




MECHANICAL


PLANT ITEM : FLAP GATE


DATENHI SPL

6.

7.

Repeat the operation for the opposite direction and checkthat limit switch operates and actuator stops.


REMARKS :




MECHANICAL


PLANT ITEM : BELT SCRAPER / BELT CLEANER


UNIT____________________________ SYSTEM _________________________________


LOCATION: _______________________________________________________________


DATENHI SPL

1.

2.

3.

Scraper frame and belt cleaner frame have been rigidlymounted and all the nuts and bolts are tight.

Rubber used is less hard than conveyor bolt.

Check the working when the bolt is running on load:-

i. Wiping action is correct.ii. It is not exerting pressure on the bolt.

REMARKS :


chp precommissioning checklist

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