Vibrating Screen Fault Analysis

Posted in: , on 30. Jun. 2009 - 18:35

hello

i aman engineering student doing a project on double deck vibrating screen to be used in limestone circuit.

recently during report making i have to categorise various

man error

machine error

method error

material error for cause n effect diagram.


please can someone provide me a sample of such or catgorise for me variouws possible errors in each category.

i have mentioned problems also in earlier thread.(vibrating screen for usw in limestone circuit)

* looking forward for some ppositive reply*

thank you..

Errors In Each Category

Posted on 15. Jul. 2009 - 04:25

man errors:

- install wrong lubrication type, leading to failure

- not checking machine frequently enough for maintenance faults

- overloading the machine

- selecting wrong type of screen for application

machine error:

- wrong speed or rpm

- wrong stroke size

- wrong incline degree

- not enough clearance all around vibrating body

- installed too tight to walls unable to change shafts

- wrong wirecloth

- untensioned sreencloth leading to premature failure

method error:

- use of wrong type of media to screen properly

- operating machine too fast or too slow

- feeding screen wrong, not full width

- dropping material from too much height

- install screen wrong with cables damage to sideplates

- torching clearances on installation to make fit

- welding on machine generally

material error:

- material bed depth too deep = fines carryover

- material too wet = plugging the opening = fines carryover

- material depth too light = too much action, mtls stays statified, fines carryover

- digging material too deep into bank = wet - not free flowing = inefficiency

- material not fed full width of screen = low tons per hour, fines carryover

- many many more

Best Regards, George Baker Regional Sales Manager - Canada TELSMITH Inc Mequon, WI 1-519-242-6664 Cell E: (work) [email]gbaker@telsmith.com[/email] E: (home) [email] gggman353@gmail.com[/email] website: [url]www.telsmith.com[/url] Manufacturer of portable, modular and stationary mineral processing equipment for the aggregate and mining industries.