Problem Identification & Corrective Action Sl No. Problem Potential Cause Solution 1 Chain rises off from sprocket 1.Excess chain slack. 2.Excess wear at the bases of sprocket teeth. 3.Excess chain extension. 4.Foreign material stuck to the bases of sprocket teeth. 5.Reverse rotation of conveyor 6.Uneven chain tightening of chain 1.Adjust the amount of slack equally at both sides. 2.Carryout hard facing of the sprockets 3.Replace the elongated chain parts. 4.Remove the foreign material from the bases of the teeth. 5.Avoid reverse rotation of the conveyor when chain tightened is uneven 2 Chain separates poorly from the sprocket. 1.Sprocket misalignment. 2.Excess chain slack. 3.Excess wear at the bases of sprocket teeth. 4.Uneven chain tightening of chain 1-Adjust alignment. 2-Adjust the amount of slack.
1-What are the functions of air compressors in power plants? The functions of the compressor is to take a definite quantity of fluid (air or gas) & deliver it at a required pressure 2-What are the applications of compressed/pressurized air in power plants? Operating the control valves Operating the solenoid valves Operating the dome valves in ash handling system Air dampers operation in fans Operating pneumatic tools 3-How does air compressor work? & what are the effects of compression on air? An air compressor takes in atmospheric air. Compresses it and delivers this air to a storage vessel from which it will be conveyed by the pipe line to the required equipments. Effects of compression: Air pressure & temperature increases & moisture content in air increases 4-What are the various types of air compressors used in power plants? Generally reciprocating, screw & centrifugal air compressors are used. 5-How does the positive displacement
