Vertical roller mill adopts three-dimensional structure,which needs less space,ball mill is just the opposite.And vertical roller mill is cheaper than ball mill,if you don't need high productivity,roller mill is a better choice. I think this note,which called what is the difference between vertical roller mill and ball mill can help you.

Grate and Overflow Ball Mill-Jiangsu Zhongbo Machinery The basic types of commonly used ball mill in the production are grate mill, ... of industrial production; big crushing ratio, fineness of pulverized materials can be ... of the lattice-type ball mill is basically the same, the difference between the two ...

For overflow mills K = 7.98 and for grate mills K = 9.10. This difference is ascribed to the presence of a pool of sl urry that is present on the bottom ... Ld is the mean length of the conical ends and is calculated as half the difference between the center-line length of the ... steel balls in a ball mill, or large lumps of ore in an

Wet overflow ball mill: 350: Wet grate ball mill: 330: ... The so-called two-stage ratio is to use two different sizes of steel grinding balls with a large difference in diameter to carry out the grading. The multi-stage is suitable for the materials with small particle size and good abrasive property, while the two-stage ratio is suitable for ...

The basic difference between a universal horizontal milling machine and a plain horizontal milling machine is the addition of a table swivel housing between the table and the saddle of the universal machine. This permits the table to swing up to 45° in either direction for angular and helical milling operations. The universal machine can be ...

The difference between overflow ball mill and grid ball mill lies in the structure of their unloading device: 1) Grid ball mill ... However, the grille central vent, grate gap and the gap between compartments are easily blocked by slurry at the ore discharge end of the grid ball mill, which increases the difficulty of maintenance work. Conclusion.

What's the Difference Between Ball Mill, Rod Mill and SAG. Mar 20, 2020· SAG mill: The SAG mill adopts a self-return device to realize the discharge of the mill. Ball mill: There are many types of ball mills, mainly including overflow ball mills and grate ball mills. Rod mill: The rod mill does not use grid plates to discharge ore.

Jun 24, 2015 The cost of a ball mill conversion from overflow to grate discharge is 'fairly' affordable at $65,000 for a 13′ x 15′ mill. This is only for the discharge head, grates and pulp filters (rubber). A comparison in laboratory of Overflow Discharge Ball Mill VS Grate Discharge Ball Mill. More

It is often used in ball mills and flotation machines in mineral processing, and can also be used for cement clinker, Drying of raw materials such as coal powder and slag. 4. The structure is different: the barrel of the tumble dryer is a horizontal revolving cylinder, inside which is welded a variety of staggered plates with different angles.

where an approximate figure for the constant is 3.5 for rod mills, 4.0 for overflow ball or pebble mills and 4.5 for grate discharge ball or pebble mills. ç is specific gravity of grinding media (for rods or balls normally 7.85) q is the charge volume in fraction of mill volume (40 % = 0.40) nc is the mill speed in fraction of critical speed

This ball mill and rod mill power draw model is based on a torque model and empirical measurements made by the Equipment Company for use by its sales representatives to size grinding mills. Slight differences in the equations used allow rod mills, dry ball mills and wet overflow and grate ball mills to …

Converting a ball mill from overflow to grate discharge involves installing a grate inside the mill at the discharge end. The grate holds the balls inside the mill but allows the slurry to pass through, and it is then pumped out of the mill by the pulp lifters. This is different to an overflow mill which holds the slurry and balls inside until ...

Inventory ID: 6C-GC01a. FULLER - TRAYLOR 16' x 24.5" Ball Mill w/ 4000 HP sync motor 200 RPM, 60hz.

Hammer Mill Working Principle: • The material to be crushed is fed from the top of the casing. The shaft is rotated at a high speed and centrifugal force causes the hammers to swing out radially. The material is beaten by the hammers around inside of the casing and by impact against the breaker plates (located on inside of the casing) or the ...

The ore discharge of overflow type ball mill mainly depends on the pulp itself high over the lower edge of the hollow shaft bushing. 2. Performance and application differences between grid type ball mill and overflow type ball mill. Compared with the overflow type ball mill, the ore discharge of grid type ball mill is low-level forced discharge.

The ball mill can grind various ores and other materials either wet or dry. There are two kinds of ball mill, grate type and overflow type due to different ways of discharging material. There are many types of grinding media suitable for use in a ball mill, each material having …

LIGHT DUTY - all grates having safe live load under 2000 lbs. MEDIUM DUTY-all grates having safe live load between 2000 and 4999 lbs. HEAVY DUTY-all grates having safe live load between 5000 and 7499 lbs. EXTRA HEAVY DUTY-all grates having safe live load between 7500 and 10,000 lbs. SPECIAL DUTY-all grates having safe live load over 10,000 lbs.

AG mills can treat both harder or softer ore and scrubbers are for only softer ores. This paper differentiates scrubber and AG mill modelling in a similar way that overflow ball mills and grate ...

Difference Between Grate And Overflowing Ball Mill. Wi the bond ball mill work index 1952 - is a measure of the resistance of the material to crushing and grinding bond ball mill work index test may be required for the design of a new mineral processing plant t is determined by bond ball mill grindability test in a lab using a bond mill.

A ball mill, a type of grinder, is a cylindrical device used in grinding (or mixing) materials like ores, chemicals, ceramic raw materials and paints.Ball mills rotate around a horizontal axis, partially filled with the material to be ground plus the grinding medium. Different materials are used as media, including ceramic balls, flint pebbles, and stainless steel balls.

If a ball mill uses little or no water during grinding, it is a 'dry' mill. If a ball mill uses water during grinding, it is a 'wet' mill. A typical ball mill will have a drum length that is 1 or 1.5 times the drum diameter. Ball mills with a drum length to diameter ratio greater than 1.5 are referred to as tube mills.

Difference Between Lattice Ball Mill and Overflow Ball. Ball mill is the key equipment for crushing materials after crushing. According to the different ways of discharging, the ball mill can be divided into lattice type ball mill and overflow type ball mill. The user should choose according to the technological process and needs. 1.

CIC provides different types of grinding mills including SAG milling, ball mill machine, etc. With more than 60 years of experience in the production of large mills, we use professional and advanced software to meet your different needs. Click to get CIC horizontal cement grinding mill price!

Differences between ball mill and rod mill Different in performance Ball mill It can be divided into two types of ball mills according to the discharging ways, overflow discharge ball mill, and grate discharge ball mill. Fote ball mill Grate discharge ball mill.

DOVE supplies two different kinds of ball mills Grate type, and Overflow type. The difference between the two types is according to their ways of discharging material, and the plant flow design specifications. The Grinding Balls will grind the material into powder size of 20 to 75 micron.

The difference between a mill designed to operate in overflow mode or with a grate and pulp lifters is also important in this context, since the duty imposed on the liner is not the same. While the physical characteristics of the ore being ground, such as its abrasiveness and the distribution of mineral within the rock, have a major influence ...

Overflow VS Grate Discharge Ball or Mill Why Retrofit Grate Discharge Ball Mill Capacities The above tables list some of the most common Grate Discharge Ball Mill sizes Capacities are based on medium hard ore with mill operating in closed circuit under wet grinding conditions at speeds indicated For dry grinding, speeds are reduced and capacities drop between 30% to 50%

the cost of a ball mill conversion from overflow to grate discharge is 'fairly' affordable at $65,000 for a 13′ x 15′ mill. this is only for the discharge head, grates and pulp filters (rubber). a comparison in laboratory of overflow discharge ball mill vs grate discharge ball …

What's the Difference Between SAG Mill and Ball Mill. Discharge method. 1. Overflow type: discharge ore through the hollow shaft. When the ore discharge surface is higher than the slurry surface, the finished product is discharged and the ore is automatically discharged by gravity, thus the overflow ball mill saves energy. 2. Grate discharge ...

Ball mill is the key equipment for crushing materials after crushing. According to the different ways of discharging, the ball mill can be divided into lattice type ball mill and overflow type ball mill. The user should choose according to the technological process and needs. 1. The structural composition is similar.