3600 Beater Wheel Assembly
Get Latest PricePayment Type: | L/C,T/T |
Incoterm: | FOB,CIF |
Min. Order: | 1 Bag/Bags |
Transportation: | Ocean,Land,Air |
Port: | Dalian,Manzhouli,Suifenhe |
Payment Type: | L/C,T/T |
Incoterm: | FOB,CIF |
Min. Order: | 1 Bag/Bags |
Transportation: | Ocean,Land,Air |
Port: | Dalian,Manzhouli,Suifenhe |
Model No.: MB3600-1000-490
Weight: 14800kg
Working Speed: 490RPM
Rotation: Left & Right
Selling Units | : | Bag/Bags |
Package Type | : | by requirements of the customer |
3600 Beater Wheel Assembly
Coal mill, widely applied in steam turbine unit of thermal power plants, breaks down lumpy coal into coal powder, with the purpose of accelerating combustion by increasing surface area of coal to oxygen. Due to different characteristics of coal, types of coal mills are applied including ball mill, disk mill, roller mill, hammer swing sledge mill and fan mill. Among different types of coal mills, fan mill presents advantages of compact structure, less construction cost, less installed area and less electricity consumption, and is more applied in thermal power plants with brown coal fueled. Cracks in pulverizing wheel of fan mill are recently observed in a power plant of China, where the cracks locate in the dovetail grooves of the pulverizing wheel. Similar crack accidents emerged in fan mill, where the cracks are observed in the beaters of the fan mill. The crack depth is less than 15 mm, with the crack ratio of 7%. The operational time of the fan mill is 1658 h. Metallurgical analysis is carried out and the crack cause is the defect of the material with too much carbon and lower teeming temperature than the standard. Compared with the defect in the material, stress concentration is more determined as an important factor in crack failures occurred in shafts and other locations of mills.
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