Originally Posted by lovedaniel2006

I am a graduate engineer, now i get a job for vibrating feeder and screen design. i checked the design handbook. It seems like these is not so many information for the feeder and screen design, and all of that is not so useful for me. so could you give me some advise or suggest me to read some reference papers. you can give me a book name list which some of them is useful for you.so i can buy some books base on that list, or download some of PDF version from the internet. if you could do that, i would appreciate it .

I would contact George Baker and Lawrence Nordell for suggestions regarding the purchase of texts for your purpose as well as contacting the Vibrating Screem Manufacturers Association and

Martin Sprocket and Gear through their home pages. ■

Daniel

Design of a vibrating screen and a vibrating feeder in not a simple job if you have never done it - if you have done it, you still need to be careful in your calcs - and I am surprised you have been asked to do it without any help or assistance

Regards

Ziggy Gregory

www.vibfem.com.au ■

Daniel

I can design screen and feeder for your company but if you wanted to know how to do it it is a little bit more complicated.

Regards

Ziggy Gregory

www.vibfem.com.au ■

well....feeder...FEEDER FOR WHAT?

if for feeding a jaw crusher for example, we need on a brute force feeder, some fairly basic needs: strong enough support structure under the PAN AREA, to take the HUGE impact forces of dumping material on it.

- Material from where: if from a wheel loader: that would be one duty of structure used

- Material dumped on the same TYPE of feeder from a MINING TRUCK 30,40,50+ TONS in one dump, that would be a SIMILAR TYPE BUT, totally different "DUTY" of brute force feeder.

- there are BRUTE FORCE FEEDERS for the above

- using INVICTA MOTORS in lieu of TWIN SHAFT with a gear engagement or two is a totally different concept to design for

- so before we can DESIGN and/or recommend any feeder of any kind and the same cross applies to VIBRATING SCREEN APPLICATIONS we MUST get specific DATA for each specific APPLICATION.

- feeding say GYPSUM ROCK...light, non abrasive rock vs HARD GRANITE at say 60-70 SILICA CONTENT, vs sand and gravel or just sand are all different setups and DO NOT UTILIZE THE exact same drives, drive sizes, drive shafts, body weights and so on

a simple answer for this is not really possible. WE would fill in a standard application data sheet first, if we are doing the customer any favours and recommend the proper feeder, properly sized, width for TONS PER HOUR AND length for EFFICIENCY with properly sized components to handle the job.

if you goggle under ENGINEERING for vibrating equipment and source books, you are sure to be able to obtain help.

GEORGE BAKER

MODERATOR ■

Dear George Baker,

one of our customers has a vibratory screen which does not deliver the theoretical design flow. The purpose of the screen is to segregate wood chips from sawdust. Moisture content normally above 45% wet basis. The design flow is for 250m3/h but they hardly achieve 100 when processing a mix with high % of sawdust. It also happens with certain type of sawdust that the material forms balls which do not pass through the screen holes. We cannot give advice on this matter so we are looking for some expert to make a preliminary case study and if necessary travel to Uruguay to visit the machine on site and assess by himself. Do you have anybody to recommend so we can contact for this purpose? Many thanks in advance,

Walter ■

Originally Posted by Walter Lusiardo

Dear George Baker,

one of our customers has a vibratory screen which does not deliver the theoretical design flow. The purpose of the screen is to segregate wood chips from sawdust. Moisture content normally above 45% wet basis. The design flow is for 250m3/h but they hardly achieve 100 when processing a mix with high % of sawdust. It also happens with certain type of sawdust that the material forms balls which do not pass through the screen holes. We cannot give advice on this matter so we are looking for some expert to make a preliminary case study and if necessary travel to Uruguay to visit the machine on site and assess by himself. Do you have anybody to recommend so we can contact for this purpose? Many thanks in advance,

Walter

Walter

Think about Bivitec or Hein - Lehman screen. Both screens give you similar result. There is probably few more companies with similar product. Let me know if you have further questions.

Regards

Ziggy Gregory ■

Originally Posted by ziggy

Walter

Think about Bivitec or Hein - Lehman screen. Both screens give you similar result. There is probably few more companies with similar product. Let me know if you have further questions.

Regards

Ziggy Gregory

Many thanks Ziggy for your reply but we have already very good suppliers of new equipment, like BM&M of Canada, but what they are looking for is somebody to assist in the assessment of their current screen. Only in the event that the result of the assessment is negative and there is nothing to do to improve the screen's throughput then they will consider ordering a brand new one. Does anybody know any expert to get in ouch with?

Thanks in advance,

Walter ■

Originally Posted by lovedaniel2006

I am a graduate engineer, now i get a job for vibrating feeder and screen design. i checked the design handbook. It seems like these is not so many information for the feeder and screen design, and all of that is not so useful for me. so could you give me some advise or suggest me to read some reference papers. you can give me a book name list which some of them is useful for you.so i can buy some books base on that list, or download some of PDF version from the internet. if you could do that, i would appreciate it .

My name is Hennie Nagel and you are correct there is not much "useful information" on the design of Vibrating Feeders and Screens.

I decided many years ago to write a book/manual ( ISBN 0/620/24902/1) "A GUIDE TO THE UNDERSTANDING AND SELECTION OF VIBRATING FEEDERS" It is not a sales manual a describes the three common feeders used in industry. Electro Magnetic, Brute Force and TWO MASS NF Electro Mechanical.

I also describe the basis of Vibration Technology. ■