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Common faults and troubleshooting of powder separator

Date:2019-04-09 16:16     writer:admin     Views:

  1, gear box heat or "smoke"

  Cause: gear box lack of oil, poor lubrication, poor oil quality.

  Overload use.

  The transmission itself fails.

  Elimination method: improve lubrication or oil change.

  Control load or improve drive design.

  According to "burning oil", "gluing", "thermoplastic deformation" and other specific analysis symptomatic treatment.

  2, vibration and noise occurred in the gearbox

  Cause: bad tooth contact surface.

  The lateral clearance is suitable and there is channeling in the axial direction.

  The accuracy of bevel gear is out of tolerance.

  Exclusion method: adjust the contact surface.

  Adjust side clearance to eliminate channeling.

  Replace the bevel gear.

  3, bevel gear root crack or fracture

  Cause: bad tooth contact surface.

  The lateral clearance is suitable and there is channeling in the axial direction.

  The accuracy of bevel gear is out of tolerance.

  Exclusion method: adjust the contact surface.

  Adjust side clearance to eliminate channeling.

  Replace the bevel gear.

  4. Thermoplastic deformation and adhesion of gears

  Causes: poor lubrication, little oil, no oil.

  High speed overload service.

  Elimination method: clean the oil tank, change the oil and fill it.

  Control speed, control load or improve design.

  5. Severe pitting and peeling of gears

  Cause: bearing clearance is too large, bearing wear.

  Poor material or heat treatment.

  Overload use.

  Exclusion: repair or replace the bearing.

  Improve material, improve heat treatment.

  Control load.

  6. Serious gear wear

  Cause: poor protective sealing.

  The oil is poor in quality, there are impurities in the oil.

  Poor material.

  Elimination method: strengthen the protective seal.

  Clean and change the oil.

  Choose wear-resisting material.

  7. Abnormal heating and noise of rolling bearing

  Cause: poor lubrication, lack of oil wear serious.

  The flange bolt at the transverse shaft end loosens the slip tooth.

  Loose fit increases clearance.

  Upper adjusting nut thread thread slide teeth

  Exclusion method: timely refueling, a short time to increase the amount of oil.

  Rewire the large bolts.

  Tear down and repair.

  Handle shaft head, rewire and replace nut.

  8, powder separator blade broken or falling body swing

  Causes: poor blade quality, inconsistent weight.

  Blade retaining bolts loose.

  Improper installation, resulting in up or down deflection.

  Elimination method: replace the blade, and evenly install the weight.

  Check bolts, add washer and tighten bolts.

  Adjust installation position.

  9, powder separator current suddenly increased

  Cause: lower or upper rolling bearing burned out.

  The ring is out of shape.

  Large pieces of sundries are mixed into the feed to plug up the upper outlet of the spreader plate.

  The big nut at the bottom of the vertical shaft becomes loose and the hub of the spreader falls down.

  Exclusion: check and replace the bearing.

  Check and replace the ring.

  Clear clutter.

  Tighten the big nut.

  Common faults: fan bearing vibration.

  10, fan and motor two different centers

  Cause: impeller imbalance.

  Fan inlet and outlet damper is not in correct position.

  Foundation stiffness is not strong enough.

  The anchor bolt is loose.

  The fan impeller collects dust.

  Exclusion method: alignment to make the two axes concentric.

  Correct balance.

  Adjust the damper position.

  Strengthen foundation, increase stiffness.

  Check the tightening bolts.

  Open maintenance door to remove dust after stop.

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Active lime is produced from limestone dolomite chalk and other minerals with high calcium carbonate content by the calcination process under the temperature of 1000-1100 ° C. There are various processes for the active lime production mainly

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