Unfortunate that you bought a ball mill, that is not the correct equipment for such a coarse feed. You should have bought a rod mill instead; ball mills are inefficient with feed above about 10 mm. As bg76 said, your classifier will be used to pull off your product sizes. The only two ways you can control how much grinding is done is by varying

Table of ContentsPractical ConsiderationsCostsTheoretical Considerations Rod mills were developed as a logical substitute for the rolls crusher when larger tonnages had to be handled, on a continuous basis. Today, with even larger tonnages to process, the trend is to install larger equipment, automate the plant and develop the highest availability possible, in order to cut costs.

(The crushing plant runs 11 h per day, the mill 24 h/d.) The mill power (and media consumption) is higher and the mill grinding length is a bit longer in the open case. Is there any other side-effects associated with feeding a ball mill with 16 kW-h/tonne feed which is coarser (closed P80 of 13.4 mm vs. open P80 of 15.4 mm i.e.2 mm coarser

b) Feed Preparation With more widespread use of coarse ball milling it is increasingly important to present a suitable feed material top-size to the ball mill. Significant inefficiencies are introduced as a result of the need for larger (and, as a result, fewer) grinding balls. Furthermore, as mill performance is related to the complete size distribution of the feed material, all

Ball mills can be used for coarse grinding as described for the rod mill. They will, however, in that application produce more fines and tramp oversize and will in any case necessitate installation of effective classification. If finer grinding is wanted two or three stage grinding is advisable as for instant primary rod mill with 75—100 mm (3″—4″) rods, secondary ball mill

Functional performance analysis of ball milling has been described previously by Mclvor. “Coarse” versus “fine” or product particle cut-off size is first selected, usually equal to some benchmark passing size of the circuit product (e.g., 80%). The function of the grinding circuit is to generate new product size material (or “fines”) from “coarse” particles in the circuit feed

Cylindrical VS Conical Ball Mills. For coarse grinding the cylindrical grate mill will, as a rule, give a lower consumption of power per ton of ore than a conical mill. The reason for its better performance lies in the low pulp discharge level which reduces overgrinding at the point where it would do most harm—i.e., at the discharge end of

Material in the first position, the coarse grinding, single-compartment plate into the second warehouse, the warehouse lined with flat lining, the steel ball, the material further grinding. Powder discharged through the discharge grate plate to complete the grinding operation. Main Technical Parameters of Ball Mill:

20/06/2015· Learn about Ball Mill Critical Speed and its effect on inner charge movements. The effect of Ball Mill RPM speed going from sub-critical to super-critical helps understand the Ball Mill Working

Cylindrical VS Conical Ball Mills. For coarse grinding the cylindrical grate mill will, as a rule, give a lower consumption of power per ton of ore than a conical mill. The reason for its better performance lies in the low pulp discharge level which reduces overgrinding at the point where it would do most harm—i.e., at the discharge end of

Material in the first position, the coarse grinding, single-compartment plate into the second warehouse, the warehouse lined with flat lining, the steel ball, the material further grinding. Powder discharged through the discharge grate plate to complete the grinding operation. Main Technical Parameters of Ball Mill:

Unlike the Ball Mill, however, the Rod Mill uses rods instead of balls as the grinding medium. As a result, its uses are different from those with the Ball Mill. In other words, the Rod Mill gives impact on and grinds coarse particles present between each rod, while no fine particles receive impact and are ground. Therefore, the Rod Mill causes no excessive grinding, enabling you to produce

Joyal-Grinding Mill,Fine Grinding Mill,Micro Powder Mill,Ultrafine Mill,Raymond Mill From China Manufacturer.This page is about the grinding mill,includes micro powder mill,high pressure mill,ygm model,raymond mill,3r,4r,5r,6r and ball mills,if you want to buy these grinding mills

Coarse Grinding (200 to 2000 microns) For the Coarse Grinding of Materials to a range of 200 microns to 2000 microns, there is a wide range of types of grinding mills that are available. Hammer Mills use multiple hammers to pulverize the material to the final size required. The LaMilpa Mill uses friction to grind material between two discs.

Coarse Grinding Mill zimbabwe crusher. Coarse Grinding Mill is the latest technology of Shanghai developed by the company, which is widely used in various industrial processing relevant,concerning.

Operation and Elements of a Closed Circuit Ball Mill System. Cement ball mills typically have two grinding chambers. The first chamber is filled with larger diameter grinding media and lined with lifting liners. The first chamber coarse-grinds the feed material and prepares it for the second chamber. The second chamber is the fine grinding

Coarse Powder Hammer Mill. Coarse Powder Mill engaging in crushing various rocks and stones with comprehensive strength not higher than 320 MPa into fine and micro fine powders, is widely used in metallurgy, mining, chemical, cement, coal, sand-making, coal gangue, construction, refractory materials and ceramic industries.

24/06/2015· 1. Safety around a ball mill 2. An overview of a ball mill 3. A ball mill’s components and the components’ functions, and on 4. Cement grinding systems with primary focus on closed circuit

The mill product can either be finished size ready for processing, or an intermediate size ready for final grinding in a rod mill, ball mill or pebble mill. AG/SAG mills can accomplish the same size reduction work as two or three stages of crushing and screening, a rod mill, and some or all of the work of a ball mill.

It is also faster to install than a traditional ball mill, significantly reducing initial costs. Lower operating cost. Vertimill® is an energy efficient grinding machine. They tend to grind more efficiently than for example ball mills with feeds as coarse as 6 mm to products finer than 20 microns.

Ball mill = coarse particles (in the plant ball mill) grinding efficiency Ore grindability (in the lab ball mill) The units of "ball mill grinding efficiency" will be covered in detail in the first part of the module. Alternatively, we can say that: Specific grinding rate = Ball mill x Ore grindability of coarse particles grinding (in the lab mill)

First-order and second-order breakage rate of coarse particles in ball mill grinding 269 If the total mass load in the mill is at particle size i=1 (single-sized particles), then

8/10/2018· The Rock grinding mill 30-80 mesh coarse powder through special device inside the machine. Rock Grinding Mill Grinding Roller.coarse grinder mesh sirptsciencecollegeHow to Grind

26/12/2017· Several factors affect the efficiency of a ball mill for cement grinding. In this article, we shall be looking at some of these factors that have been proven to influence grinding efficiency: Mill Geometry And Speed According to Bond (1954), the grinding efficiency of a mill depends on the ball mill diameter, size of the []

Various industrial grinding mills for sale, stone powder processing equipment basement from China! Grind all kinds of ores into high-valued superfine powder!Action speak louder than words.Why not contact us now? Superior quality, impeccable service--Shanghai Clirik Machinery Co.,Ltd, your customized stone powder grinding mill specialist!

Ball mill is the key equipment for grinding after crushing is widely used in the manufacture industries, such as cement, feldspar, silicate ore, new building material, refractory material, fertilizer, ferrous.

Alibaba offers 5,756 coarse grinding products. About 26% of these are abrasive tools, 3% are abrasives, and 2% are mine mill. A wide variety of coarse grinding options are available to you, such as ball mill, surface grinding machine, and cylindrical grinding machine.

Under the same finished final size and the same motor power, the capacity of Micro pulverizer machine is twice as much as jet mill, mixing grinder and ball mill. 2、Long lifecycle of spare parts The ring and roller are forged by special material with high utilization. Under the same grinding material and finish special size, the lifecycle of

stirred mill that operates with very high power intensities (up to 300kW/m3) compared to ball or tower mills (with less than 40kW/m3). This high power intensity enables the IsaMill™ to process coarse particles to ˜ne product sizes with small media at high throughput. The result is large scale, ef˜cient grinding for both coarse and ˜ne