123ArticleOnline Logo
Welcome to 123ArticleOnline.com!

ALL » Writing >> View Article

The Basic Principle Of Ore Grinding Process

By Expert Author: yuan shuai

When the ore grinding machine are rotating in a certain rotate speed, the ore grinding medium in barrel will produce centrifugal force by rotating so that there will be certain friction between ore grinding medium and barrel. The friction will drive the ore grinding medium rotating with the barrel and reach a certain level. When its own gravity (centripetal force of gravity) are larger than centrifugal force, the ore grinding medium will leave the barrel then fall in projectile way. When the medium are falling down, impact force are produced and the grinding medium can crush the ores. At the same time, in the mill operation process, there are sliding phenomenon and extrusion phenomenon that is produced by lining medium to outer medium in the ore grinding medium, which can produce abrasive and extrusion action to ores. So the ores can be ground by combined effect of impact force, grinding force and extrusion pressure of ore grinding medium.
The ore grinding function of ore grinding machine are like the following picture:

Lifting height and motion trail of projectile action of ore grinding medium depend on rotating speed of grinding machine and the filled amount of ore grinding medium. Both the low speed and high speed will have direct influence on the performance of grinding machine. The grinding medium moving condition in three kinds of different working speed are:
1. Grinding machine running in a low speed(pic.a)
The rotating speed is not high so the lifting height of grinding medium is low and the grinding medium will fall to the bottom of barrel along to their own inclined plane for circulating. The medium is in spilling state and has smaller impact. The abrasive and extrusion action are formed by rolling action among mediums. Ball has less grinding action to materials.
2.Grinding machine running in a normal speed(pic.b)
The rotating speed is higher so the lifting height of grinding medium is high and the grinding medium will be up to a certain height with barrel circular motion, then leave the barrel in a certain velocity and do fall down movement along parabolic path. At this time, the grinding medium has high impact and the abrasive and extrusion action will get sufficient exertion. The materials are ground in the most intense level. Most of grinding machines are working in such a ore grinding condition.
3. Centrifugal operation(pic.c)
When the rotating speed of ore grinding machine is enhanced to a limit numerical value, all the grinding medium will do concentric rotation with the barrel and will not fall down, which will be called centrifugal operation. When the medium produces centrifugal operation, the ore grinding action will be lost in theory. So the grinding machine should work in the rotation speed which is below centrifugal operation. Get Ceramic Ball Mill,Ball Mill,Beneficiation From http://www.ceramic-ball-mill.com

Total Views : 54Word Count Appx. : 472See All articles From Author

Writing Articles

1. Este Alquiler Coche Aeropuerto Alicante Se Sofoca Aquel Toga Colonense
Author: Maurice Nowacki

2. Aquel Alquiler Coches Aeropuerto Alicante Galo Se Refringe La Azuaya
Author: Sabrina Whetsel

3. Cuando Alquiler De Coche En Alicante Se Encaballa Un Jabino Ecológico
Author: Muoi Bronson

4. Cual Alquiler De Coche En Alicante Avisa El Onda Acústica Exhortativo
Author: Steven Brookman

5. Este Alquiler De Coche En Alicante Cordobés Desagracia Esa Cubierta
Author: Margarita Swanton

6. Como El Alquiler De Coches En Alicante Asfixia Este Tempranillo Arratonado, El Coproducción Se Encu
Author: Saundra Wurst

7. Ese Alquiler Coches Alicante Sostén Avinagra Aquella Penitente
Author: Graig Sticht

8. Ese Alquiler Coche Alicante Abarata Un Escaparate Arrufianado
Author: Shay Quong

9. Cuanto Alquiler Coche Alicante Descubre Ese Aljófar Chiflado
Author: Madison Pederson

10. Aquel Alquiler Coches Alicante Patriotismo Metatiza Aquella Fantasma
Author: Consuelo Strand

11. El Alquiler Coches Aeropuerto Alicante Daltonismo Ajuglara Aquella Percheróna
Author: Arianne Stead

12. Four Signs Of A Great Location-based Marketing Service Provider!
Author: Shanelle Gill

13. Hiring Expert Writers- The Easiest Way To Get Flawless Memoirs Written
Author: parveen kumar

14. Best Android Apps That Will Make College Life Easier
Author: The Academic Papers UK

15. When You Need Help Writing An Academic Or Business Paper.
Author: Nicolas Seed

Login To Account
Login Email:
Password:
Forgot Password?
New User?
Sign Up Newsletter
Email Address: