Major maintenance, repairing and overhauling works of Primary and Secondary crushers and vibrating screen in CHP, ATPS, Anpara

Amount

Major maintenance and repairing works of Primary and Secondary crushers installed in CHP (A) PRIMARY CRUSHER (04 Nos.) TRF MAKE (ROTARY BEAKER )

Balancing of Rotor of primary crusher OR Removal of jamming of bearing of Guide Rollers

Removal of jamming of bearing of supporting Rollers.

Replacement of damaged bearing of supporting Rollers. OR Replacement of damaged supporting rollers by new one/ taken out from other crusher

Replacement of damaged oil seal of guide rollers.

Replacement of damaged / worn out guide roller assembly by new one/ taken out from other primary crusher

Replacement of damaged Plummer block of supporting Roller

Tightening / loosening of the drive chain

Replacement of damaged chain link

Repairing of chain link

Replacement of complete drive chain

Repairing of damaged teeth of drive/ driven sprocket by welding & grinding in position

Replacement of damaged Sealing rubber liner

Replacement of drive sprocket

Replacement of driven sprocket

Checking & Re-alignment of Rotor Assembly of Primary crusher

Re-adjustment of angle of deflector OR Torque Setting of bolt & nut for fixing driven sprocket to feed end spider (12 Nos.) with a torque of 50-60 Kg-M.

Replacement / re-fixing of detached deflector

Re-adjustment of angle of lifting shelve

Repairing of perforated screen plate by welding & grinding the worn out portion

Replacement of Perforated screen plate

Torque Setting of bolt & Nut for fixing of lifiting shelves & screen plate to beam with a torque of 70-80 Kg-M.

Torque Setting of bolt & nut for refuse plough to screen & blank plate (10 Nos. ) with a torque of 70-80 Kg-M.

Torque Setting of bolt & nut of deflector & screen plate to beam (36 Nos. ) with a torque of 70-80 Kg-m.

Torque Setting of bolt & nut for spider to beam (64 Nos.) with a torque of 140-160 Kg-m. OR Torque Setting of bolt & nut of foundation & crusher housing. OR Repairing of distorted inspection doors of primary crusher by heating, welding & straightening etc.

Torque Setting of bolt & nut of screen plate to beam.

Torque Setting of bolt & nut for fixing Plummer block with a torque of 34-45 Kg. M. OR Torque Setting of bolt & nut for fixing guide roller support to roller supporting structure (21 Nos.) with a torque of 15-20 Kg. M.

Repairing / Re-fixing of refuse plough

Checking of tightness of check nut of bearing of supporting Roller after taking out supporting roller from its foundation & refitting in position.

Re-adjustment of float of rotor assembly of primary crusher

Removal of vibration by strengthening the foundation.

Major maintenance and repairing works of Primary and Secondary crushers installed in CHP (B) SECONDARY CRUSHER (RING GRANULATORS)

Replacement of complete set of ring hammers (78 Nos.) by new / useable old hammer OR Repairing of damaged & wornout breaker plate by cutting, grinding & welding etc.

Replacement of damaged/ broken ring hammer by new / useable old hammers of each now.

Alignment of Crusher only

Replacement of damaged breaker plate by new / repaired one

Replacement of drive side bearing or withdrawal sleeve of crusher

Replacement of non drive side (free end side) bearing or withdrawal sleeve of crusher

Repairing of damaged tramp iron tray by heating, straightening & welding etc. after dismantling & re-fixing the same in position after repairing.

Repairing of damaged / worn out centre disc by welding, grinding etc. OR Repairing of damaged / distorted inspection door of secondary crusher

Repairing of damaged straight cage side piece by straightening, welding & grinding etc.

Replacement / Re-fixing of straight cage side piece

Torque Setting of foundation bolts of secondary crusher & its other fasteners.

Attending leakage of oil/grease from bearing of secondary crusher by replacing gasket etc.

Rectification of overheating of bearing of crusher

Repairing of end disc by welding grinding etc. OR Repairing / replacement of liner plates of secondary crusher

Replacement of damaged / worn-out plumber block (bearing housing) of secondary crusher.

Elimination of vibration of secondary crusher by removing all its hammers & rebalancing of rotor

Replacement of damaged coupling pads of voith make fluid coupling of crusher

Replacement of defective fluid coupling of crusher

Replacement of defective oil seal of fluid coupling after removal of motor and fluid coupling from its position & normalisation of system.

Repairing of damaged Tie Beams of Primary crushers and replacement with new repaired tie Beams installed in CHP, ATPS

Repairing of damaged Tie Beams of Primary Crusher installed in CHP, 3x210MW, ATPS, Anpara as per scope of work.

Replacement of Tie Beams of Primary crusher as per scope of work.

Work of overhauling of Primary and Secondary Crushers installed in CHP, ATPS

Overhauling of Secondary crusher as per scope of work

Overhauling of Primary Crusher as per scope of work

Work of Overhauling of Vibrating Screens installed in CHP, ATPS

Complete dismantling of Vibrating Screen, repairing/ Replacement of its worn out, damaged parts and thereafter complete re-assembly as per scope of work of CHP, 3x210MW, ATPS Anapara

Fabrication of side plate of vibrating screen with liners with provision for fitment of left and right hand bearing housing.

TECHCON ENGINEERS

M/S JISHA ENGINEERING CONSTRUCTION