Ball Grinding Mill With Air Classifier Production Line

Principle of operation

Ball mills are giant drums that are filled to between 30 and 40% of their volume with freely moving grinding media - in this case balls. The diameter of the balls is between one and several centimetres to suit the application - smaller balls for fine milling results and larger ones for coarser milling tasks.

The drive sets the milling drum into slow rotation and the bed of milling media is thus activated, i.e. the balls are lifted and then impact back against the bed. Ball mills are usually operated at 75% of the critical speed. The critical speed is the speed where, mathematically calculated, the grinding media would centrifuge out. Mills of 2 m in diameter therefore rotate in operation at about 23 revolutions per minute, which corresponds to a peripheral speed of 2.4 m/s.

A mill of this size equipped with steel grinding media converts approx. 50 kW per m³ of feedstock. The feed product is fed continuously through the trunnion and is discharged through slots on the opposite side. The discharge rate can be adjusted as a function of the number of open slots. The ground product is transported - often pneumatically - and is charged to a downstream classifier. The coarse material is returned to the mill together with the feed product.

Features

The classic standard design which has proved itself in operation throughout the world for decades. Both the design and efficiency are continually improved to pay tribute to new technology and market requirements.

*Cast side plates bolted to a rolled-steel drum with integrated manhole.

*Drive via ring-and-pinion gear with automatically controlled tooth lubrication, back gearing with couplings and high-performance gear unit.

*Bearing unit: journal bearing designed as a friction bearing with permanent oil-recirculation lubrication and

temperature control.

*Option: self-aligning roller bearings.

*Product discharge via adjustable slots located around the periphery of the drum. Two-part discharge housing

*with top venting connection and inspection cover.

Variable-speed drive

Ball mills are usually operated at 75% of the critical speed, i.e. in the fringe area between cascading and free-fall. With a specially designed frequency converter, it is even possible to operate a heavy ball mill at variable speed. And if the GF is to be used for grinding ultrafine products or if it is planned to change the product frequently, operation with a frequency converter is particularly advantageous.

Load cell technology results in precision product level control

A high consistency of the product quality demands exact measurement of the amount of product in the mill. Because of this, an optional accessory offered for our ball mills is the load cell system which permits precision control of the product level. The complete ball mill is bedded on a steel or concrete frame designed to rest on a defined number of load cells. The load cells are integrated into a control unit and determine the total weight of mill, grinding media and product. The addition of virgin feed can be controlled with such precision that the mill always operates at optimum load. This means reliable prevention of no-load operation or overfilling, and mill operation is exceedingly cost-effective.

Detailed images

PACKAGING & SHIPPING

1 Packaging:  Specially made wooden boxes and containers

2 Shipping: Forty days after receiving initial payment

OUR SEVICES

1 We will provide non metallic ore EPC turnkey project services.

2 According to customer's requirement, you can customize your private model.

3 You can make the complete test 

4 We will respect your reasonable requirements

COMPANY INFORMATION

Weifang GUOTE Mine Equipment . is professional and  modern enterprise including research and development, engineering design, production and installation, debugging services , automatic control equipment, non-metallic mineral production line test, design, consultation and the complete line of delivery.The scope of services related to mining, metallurgy, electric power, coal, glass, paper, chemical building materials, refractory materials, tiles,food, cement ,etc.Our product sell well in more than thirty provinces, autonomous region.

   Our product have electromagnetic, permanent magnetic separator, dry wet magnetic separator,electromagnetic vibration feeder, quartz sand making machine, air classifier, dust collector, water separator, washing machine, flotation machine,metal detector, screw conveyor, timing quantitative feeding,weigher and centralized control system, etc.

   Facing the new opportunities and challenges, the company in line with the spirit of "honesty-oriented, mutual benefit, cooperation and innovation" , dedicated to providing “dependable,simple and efficient” products and services to customers, make enterprises become domestic advanced mining equipment manufacturer.

   Our company is willing to work together with people from all walks of life for a better future.

FAQ

1.What main products do you supply?

l Ball mill with air classifier production line

l High pure sand making machine

l Air classifier

l Dust collector

l High gradient vertical ring magnetic separator

l Plate type magnetic separator

l Roller type permanent magnetic separator

l Metal detector

l Vibrating feeder

2  Are you a trading company or factory?

We are professional manufacturer of non-metallic minerals  

EPC dressing turnkey service in Shandong,China. You are

welcome to visit our factory and discuss for further 

business.

3 Delivery date for my order?

  10 to 15 days for small size machine; 30 to 40 days for large

   size machine.

4 How about your payment methods?
  Our payment methods are T/T, Western Union, Money Gram,

  Cash, Paypal etc.

5. How do you handle the shipment for my order?

 Express, we offer express service ( DHL, UPS, Fedex, TNT&

 EMS), it’s the fastest way to receive your order; Air or Sea, we  

 can send your order by air or sea. Its the most economic way

 to receive your order.

6. What is your company warranty policy?

We offer 12 months warranty. For regular customers, we always offer them lifetime warranty.

7. Do you offer any replacement for my order?

Yes, we will offer you the replacements based on the model and quantity you are going to order.

 8.  How can I contact to you?

   You can contact us by e-mail on alibaba or whatsapp

   +86 18853617214.

 contact information

Name: Kellen Wang

WhatsApp: +8618853617214

Skype:live:749971721

Wechat:king198803181834

My alibaba website:   http://sdguote.en.china.cn/

If you have any questions, pls don't hesitated to contacting me anytime.