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Chain conveyor troubleshoot guide

  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.

Procedure for Boiler Gauge glass line up & Flushing

Boiler Gauge glass: is a transparent glass of shape tubular, flat or square blocks fitted to the boiler steam drum to facilitate a visual indication of the water level of a steam drum. These types of glasses are manufactured by borosilicate glass which is robust, temperature & chemical resistant.

 



Line up of Gauge glass:

  • Ensure all tools & required PPEs are taken to operate the valves (Hand gloves, Safety goggles, “F” rods etc)
  • Ensure steam & water side valve of gauge glass are healthy & operating properly
  • Ensure there are no any leakages
  • Ensure steam side & water side valves are closed
  • Ensure gauge glass drain valve is open & drain is connected/extended to safe location
  • Now crack open the steam valve & check for any leakages in gauge glass. Wait for some times until system heats uniformly.
  • Then crack open the water side valve, wait for some time for stabilization
  • Then close the drain valve
  • Open the steam valve & water valve fully
  • Observe water collected in glass & showing the level
  • Cross check the level glass with other side level glass or control room transmitter reading or with Hydra step

Factors considered for Boiler Engineering

Flushing of gauge glass

Ensure all tools & required PPEs are taken to operate the valves (Hand gloves, Safety goggles, “F” rods etc)

Step-I

  • Close the water side valve & open the drain valve for flushing, wait for some time
  • Then close the drain valve & open the water side valve

Note: After opening the water side valve, water level should retain its normal operating level, if not then there might be blockages in valve or line

Step-II

  • Close the steam side valve & open the drain valve for flushing, wait for some time
  • Then close the drain valve & open the steam side valve

Note: After opening the steam side valve, water level should retain its normal operating level, if not then there might be blockages in valve or line

Questions & Answers on AFBC Boiler





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  1. You have done a good job by publishing this article about Gauge Glass. I appreciate your efforts which you have put into this article, It is a beneficial article for us. Thanks for sharing such informative thoughts.
    Klinger Gauge Glass

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