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Showing posts with the label fuel handling

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.

40 important question & answers on belt conveyor for power plant engineers & operators

1-What are the equipments used in coal handling plant (CHP)? Starting from coal shed Coal elevator Coal grizzly hopper Coal vibro feeder Coal conveyors (belt conveyor) Coal vibro screen Coal crusher Coal dust extraction system Shuttle conveyor 2-Name the various parts of the belt conveyors? Belt Carrying idlers Return idlers Impact idlers Transoms Pulleys Vertical gravity take up system Power transmission system (Motor, Gear box, couplings) Main structure & trestles Tools & tackles used in power plant maintenance 3-How do you specify the conveyor belt? Belt is specified based on Its material of composition Number of ply Belt rating Belt width 4-What are the various materials used for manufacturing of belts Nylon, Polyester, Aramide, Polyester-Nylon, Steel fabric 5-What are the various pulleys used in belt conveyors? Head pulley Tail pulley Snub pulley Bend pulley Take up pulley 6-Which is the largest and smallest pull

Calculation of coal handling plant and bunker capacity

Coal handling plant (CHP) consists of ; Coal unloader from vehicles Coal storage yards Coal vibrofeeders Coal vibroscreen Magnetic seprators Coal crusher Coal weigher Series of Conveyors Water sprinkling system Coal shuttle conveyor Coal storage bunkers Inorder to calculate the coal handling and coal storage bunkercapacity, first we need to know the coal requireent per day for a plant, coal handling maintenance stratergy We shall calculate the coal handling & bunker capacity by taking an example of 25 MW thermal power plant consuming coal of GCV 4900 kcal/kg & having heat rate 3200 kcal/kwh running at 100% PLF. Plant running load = 50 MW X 100/100 = 25 MW We know that coal consumed = Heat rate X Power generation / (Coal GCV) Coal consumed =3200 X 25 / 4900 = 16.32 MT/hour Coal consumed in a day = 16.32 X 24 =391.68 MT take round figure 392 MT/day A-Coal handling capacity calculation Consderations: Coal handling plat