5-500 Tph Ball Grinding Mill 5 Ton Quartz Ball Mill Grinding

usage
Ball mill is the key equipment to crush the material after it is broken.
Ball mill is one of the high fine grinding machines widely used in industrial production.
There are many kinds, such as horizontal ball mill, ball mill bearing bush, energy saving ball mill, overflow type ball mill, ceramic ball mill, grid ball mill, etc.
Ball mill is suitable for grinding all kinds of ore and other materials, is widely used in mineral processing, building materials and chemical industries, can be divided into dry and wet grinding methods.It can be divided into two types, grid type and overflow type, according to different discharging modes.

ore mill type	remark
ball mill	feeding small size and output 200mesh
agmill and sag mill	with large crushing ratio like jaw crusher

Our largest mills has been delivered to SINO Site to date are Ø12.2m x 11m 28MW Gearless Drive AG Mills and Ø7.9m x 13.6m 2x8 MW Twin Pinion Drive Ball Mills. These mills are scheduled of start up on 2012.
Our market share in China exceeds 80% with the largest mills supplied to date being a Ø7.9m x 13.6m 2x8.5MW Ball Mill and a Ø11m x 5.4m 2x8.5MW SAG Mill , being the largest in China.CITIC HMC Company is the key large enterprise for the design and manufacture equipments in China. The manufacture of grinding equipment begins from 1960s. Since 1980s,our company has cooperated with many famous foreign grinding manufactures on technology introduction ,cooperating manufacture and development. We have in particular long experience in mill testing, study, design, made and field operation, and made advancement and innovation on foreign technologies. Now we have established our own grinding laboratory, formed various type mills to series, totally produced over 1000 sets, and exported to Australia, Russia, Pakistan, Zambia, Indonesia, Vietnam, Canada etc. we have produced the overflow ball mill with the largest size Φ5.5×8.5m, Φ8.5×4.0m semi-autogenous mill, Φ5×15.5m tube cement mill Φ5m vertical cement raw mill, etc.
Our company possesses the national first-rate study and group on mill, perfect experiment and testing measures, and superior manufacturing equipment and technology on large- scale mills, we have formed complete supplying system for mill experiment, study design, manufacture, testing and service.

A ball mill grinds ores and other materials to a typical product size of 35 mesh or finer.

The feed to a ball mill is prepared by...
· Single or multistage crushing and screening
· Crushing, screening, and/or rod milling
· Primary crushing and autogenous/semiautogenous grinding

Ball Mill Normal feed sizes: 
· 80% passing 1/4" (6 mm or finer) for hard ores
· 80% passing 1" (25 mm or finer) for softer ores
(Larger feed sizes can be tolerated depending
Grate or Diaphragm Discharge Ball Mill

In the discharge end of this mill, a slotted full diameter or partial diameter grate with discharge lifter assembly conveys the material to the discharge trunnion opening. The grate serves to retain balls, tramp, and coarse material. A gradient created between the feed opening and the discharge slots eases the flow of material.
Trunnion Overflow Discharge Ball mill
A trunnion overflow mill has an open discharge end. Material flows through the trunnion as a result of the pulp gradient between the feed and discharge openings. A reverse helix in the discharge trunnion liner retains balls in the mill.
ZTIC Ball Mill Feature 
♦The cylindrical mill adopts the driving type edge-driving, center-driving, edge-driving with multi-point meshing, etc; driven by asynchronous motor +reducer +pinion and gear as well as synchronous motor +

air lclutch + pinion and gear.
♦Generally supported by static-dynamic pressure bearing on both ends. Fuuly closed self-aligning 120º osculation rocker bearing is used. Also single or double slipper staic- dynamic bearings can be used. The bush is made by NC machine.
♦ The large open gear is designed using AGMA standard, Equipped with reliably sealed gear housing and grease ahtomatic spraying lubrication system.
 The shell is key part of a mill. Carry out finite element analysis on it with computer to ensure the reliable operation;
♦ The shell is automatically welded, ultrasonic inspected, wholly annealed and machined by large special machine tools on one chucking; there special seal on static-dynamic connection parts , ch as feed and discharge hoper, trunnion, etc, to prevent oil and slurry leakage;
♦ The liner is of wear-resistance material mad by our company, wich has been specially heat-treated, with high hardness and long service life. Also other wear-resistance casting or rubber liner can be used;
♦ There are slow speed drive for medium and large mill;
♦The high and low pressure lubricating station is equipped for medium and large mill;
♦The control and protection system is controlled by PLC.

Maintenance procedures

(1) Maintenance cycle:

1. After repairing for 1 month;

2, minor repairs 1-3 months;

3. 12-24 months of middle repair;

4. Overhaul 60-120 months.

(2) Maintenance content:

1. After repair: mainly check the oil quantity, adjust the clearance of each part, strengthen the bolts of each part, replace the individual lining plate or check the wear condition of the lining plate, and repair the feeder.

2. Minor repairs: Check the wear of the cleaning and measurement tooth surfaces, check the wear of the lining plate, and replace if necessary.

3. Intermediate repair: replace the feeding parts, replace the transmission pinion runner and bearing, and check the disassembly of the reduction box. The large gear can be adjusted and used according to the situation when it is running for 3-5 years, and the hollow shaft should be measured when it is running for 3-5 years.

4. Overhaul: disassemble, inspect, clean, measure, repair or replace the large gear, hollow shaft, spherical bush, transmission shaft, pinion and cylinder according to the wear condition, repair and replace electrical components, after the electrical equipment is overhauled, it must be tested for acceptance Work.

(3) Maintenance standards:

1. The processing surfaces of the two bearing bases are on the same horizontal plane, the tolerance between the centers is 1mm, the deviation of the non-parallelism of the longitudinal centerline is 0.5mm, and the deviation of the horizontal centerline is 0.5mm per meter.

2. The contact angle of the spherical contact surface of the pad should be uniform; no less than 1-2 points per 50Ⅹ50mm2; the contact surface between the hollow shaft and the pad should be no less than 2 points per square inch at 90°-100°, and the journal and the The clearance on both sides of the bearing is approximately the same.

3. The mating surface of the cylinder flange and the front end cover should ensure good contact, no gaskets are allowed, and the tolerance of the different axial degrees of the two hollow shafts is less than 0.8mm. When the large ring gear and the cylinder end cover are connected and assembled, the thrust should be firm and the positioning pin should be installed. The radial swing of the ring gear should not exceed 0.5mm and the axial swing should not exceed 0.84mm.

4. When installing the lining plate, the end cover should be installed first. The lining plate of the cylinder should start from the mouth and be carried out according to the assembly requirements. The screws should be tightened evenly to prevent water leakage. There should be no gaps in the rubber lining , and the gaps should be blocked with sponge.

5. The center line of the pinion should be parallel to the center line of the large gear, and the deviation should not exceed 0.2mm per meter. The tooth top clearance is 1/4 module, the tooth side clearance is 1.06-----1.8mm, the contact area of the tooth surface is not less than 50% of the tooth length and 40% of the tooth height.

6. The transmission coupling of the reducer, motor and transmission shaft should maintain high coaxiality, the non-axiality of the center line is not more than 0.3mm, and the inclination of the center line is less than 1/1000.

company factory show

 

Q: Why we believe in luoyang zhongtai industries co., ltd:
A: 1. More than 30 years experience.
2.We are the leading professional supplier of mining machinery, construction machinery, machines casting and forged parts
3. All products achieved ISO9901:2000 quality management certificate and CE, ROHS certificates.

Q:Delivery time
A: parts lead time 1-2months, machines 2-3months.

Q:Payment terms
A: Accept payment type: T/T, L/C, Western union,Cash.
30% deposit when signed contract. Full payment paid before shipping

Q: Quality warranty?
A: guarantee time: one year for main machinery. If something wrong we will provide the technical advice and find solution immediately. For those wearing parts we guarantee high quality parts for long-term supply.

Q: After sales service?
A: we can supply technical guide for machines running test and parts maintenance if end user needs.