TRM36。 4 slow roller bearing into material fast cleaning method

TRM36。 4 slow roller bearing into material fast cleaning method - 2018 08 - 06 Wang Liangyong ( Star ship city of sichuan province cement co. , LTD. ) My company TRM36. 4 vertical mill in a normal production, one of the roller bit lubrication oil station suddenly drops rapidly, and the oil return vacuum gauge pressure display to zero. Stop inspection found that the roller grinding small end cover is off, the bearing and the bearing cavity filled with material; And because the bearing inner material too much, roller rotation. As found that the original center of tremie pipe is made of Q235 steel plate, do not wear process, short service life, coupled with insufficient checks the center tremie pipe mill after wear, material direct thrust small end cover bolts and fall, and leads to bearing and the bearing cavity filled with material. To clean bearing and bearing material in the cavity, we adopt the method is: will stand roller lubrication oil replacement for diesel fuel, and open the main motor to sing. masses, forced to drive roller rotation, open for oil pump ( Back to the oil pump does not open) Use diesel flush bearing rotation. Specific cleaning process is as follows: ( 1) Ready to work. Replaced the roller tank of lube oil for diesel, oil level height above the pump inlet pipe appropriate location. Small roller end cover don't hold back, continue to open, to flush the material flow directly; No metal foreign body in check bearing, pulled out as much as possible to block material; Raise all roller, a layer of material on the millstone uniformly distributed layer, layer thickness reference block material height. （ 2) Clean up the implementation. Upon the completion of the preparation work, first open lubricating oil pump oil in advance, and then start the main motor to sing. masses, roller naturally fell at the same time, Four roller sets at the same time, don't pressure roller) Until the roller rotation in roller rotation about 10 laps around ( The rotation time about 10 s) After carrying roller, downtime. After the above process downtime, check the bearing has clean, and flexible rotation. And then change the center tremie pipe to composite wear-resistant plate, at the same time, strengthen the equipment inspection, so as to prevent the similar accidents from happening again.