Rotary drum dryer Overhaul

Monday, March 31, 2008 in mining equipment

   Rotary drum dryer for drying the materials used drying equipment. Reliable operation, operating flexibility, adaptability, and ability to handle high in the chemical, metallurgical materials, light industry, and other departments are widely used.
 
     A rotary drum dryer structure
     Rotary drum dryer from the main cylinder, supporting devices, fixed installations and the End Seal device, and other components.
 
     A) cylinder
 
     Cylinder rotary drum dryer is the matrix, not only for its internal heat transfer, mass transfer process have seized mobile carrier material role.
 
     B) Support Device
 
     Cylinder device is supported by the roll ring and entrusted round block round consists of three parts. By the weight of the entire cylinder roll ring passed to the supporting wheel, and rolling circle in the care wheel rolling, blocking cylinder block round of the role of the axial movement.
 
     C) transmission device
 
     Rotary drum dryer gear including electrical, reducer, gears, gear and other parts.
 
     D) access device and sealed devices.
 
     2 overhaul axial movement in the process of adjustment
 
     According to the rotary drum dryer working principle and structure of production and maintenance of rotary drum dryer experience, we should ensure rotary drum dryer Machinery long-term safe operation, the key is adjustment entrusted round.
 
     2.1 The purpose of supporting roller adjustment
 
     Maintaining rotary drum dryer linear axis; cylinder to the normal back and forth along the axial movement, so that block round to remain static or little short of the campaign to make the block round care more evenly round Shell commitment load.
 
     Adjustment method
 
     2.1 inspection
 
     Observation wheel round and asked whether it is still in a relative position in the middle position of the block and turning round.
 
     2.2 adjustment
 
     Riding Wheel adjusted according to the cylinder rotary direction, adjusting entrusted round of the centerline, taken in a certain direction at the same time skew supporting wheel, and a tiny cylinder centerline angle (normally not more than 0.5 °, so as to avoid supporting roller flour Profiled) a thrust upward spiral, and its upper and lower cylinder channeling basic balance of power, simplified relative stability in a position of functioning, that is, with a round, the next round of block ran back and forth freely between.
 
 
     Adjustment steps are as follows: When moving down Simplified, will regulate the bolts fastening the lap 2, a full-Lo retire lap (Note must be tightened laps with pine retreat laps equivalent), Simplified will stop downward if turn upward movements, the increase in the child care round liquid lubricants, this simplified the shift will stop, if still on the move, tightening a bolt, bolt-withdrawal 2, Simplified stop on the shift downward turn, if , it would be entrusted round of the lubrication sleeve losers swaps and, when necessary, repeat the aforementioned methods, ran until not so far. Adjustment process, prevent entrusted round to different directions askew.
 
     In the process of readjustment, in order for the cylinder on the shift, the best round of the surface in the care poured some lubricants to increase surface friction contrary to spare cylinder down, poured some thick grease to reduce friction surface . At the same time supporting roller adjustment to adjust four supporting wheel, and that care round and round with not less than 50% of the contact surface.
 
     3 the results of
 
     After riding wheel adjustment has been greatly reduced by block round, which would in turn improve the care, block wheel bearing life, lower production costs and improved production efficiency. At the same time, supporting wheel, wheel bands (Rolling Ring) contoured to reduce wear, and the useful life of equipment has been upgraded. If I plant compound fertilizer dryer continuous operation for four years, not overhaul, a good effect. But the wear and tear is inevitable, need regular maintenance, and maintain lubrication, and the regular round of Chatuo, block round of the location and bearing fever, timely adjustment and maintenance, to ensure the normal production.

 

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