+86-21-58386256
Capacity. 1-95t/h. Input size. <25mm. Ball mill is a type of grinder machine which uses steel ball as grinding medium, can crush and grind the materials to 35 mesh or finer, adopted in open or close circuit. The feed materials can be dry or wet, they are broken by the force of impact and attrition that created by the different sized balls.
Aug 02, 2013· In Grinding, selecting (calculate) the correct or optimum ball size that allows for the best and optimum/ideal or target grind size to be achieved by your ball mill is an important thing for a Mineral Processing Engineer AKA Metallurgist to do. Often, the ball used in ball mills is oversize "just in case". Well, this safety factor can cost you much in recovery and/or mill liner wear and tear.
Ball Mills. Ball mills have been used for the preparation of coal–oil and conventional coal–water slurry fuels, also in large sizes up to a capacity of 50 tonnes of coal per hour (Austin et al., 1984).
A ball mill is a type of grinder used to grind or blend materials for use in mineral dressing processes, paints, pyrotechnics, ceramics, and selective laser sintering.It works on the principle of impact and attrition: size reduction is done by impact as the balls drop from near the top of the shell. A ball mill consists of a hollow cylindrical shell rotating about its axis. T
Oct 15, 2015· Calculate Ball Mill Grinding Capacity. The sizing of ball mills and ball milling circuits from laboratory grinding tests is largely a question of applying empirical equations or factors based on accumulated experience. Different manufacturers use different methods, and it is difficult to check the validity of the sizing estimates when estimates ...
Feed size-0-3mm. Output- 85mesh% Capacity-60TPH. Bond index-17kwh/mt. Liner typer-metal liner. According to the requests above, I am here to recommend 2145 ball mill (Ф2100×4500), which is a combination of new technology and ideas, and totally meets various users' needs in terms of. Get Price.
Aug 30, 2019· 1 Calculation of ball mill capacity. The production capacity of the ball mill is determined by the amount of material required to be ground, and it must have a certain margin when designing and selecting. There are many factors affecting the production capacity of the ball mill, in addition to the nature of the material (grain size, hardness, density, temperature and humidity), the degree of ...
Ball mill. A typical type of fine grinder is the ball mill.A slightly inclined or horizontal rotating cylinder is partially filled with balls, usually stone or metal, which grind material to the necessary fineness by friction and impact with the tumbling balls. Ball mills normally operate with an approximate ball charge of 30%.
Jan 01, 2016· A 20:1 reduction ratio of ore was desired. The mill was operated at 80% of the critical speed. Assuming a bed porosity of 40%, estimate the mill capacity in tonnes per year. 7.6. A ball mill is to produce a grind of 34 μm (P 80) product from a feed size of 200 μm at a rate of 1.5 t/h.
obtained with 100% of a make-up ball size of 50.8 mm. As the. feed size is reduced to 13.4 mm, a 62:38 mix of 50.8 mm and. 25.4 mm balls was found to be the optimum mix. As the feed size. is ...
Ball Mill Ore Grinding Equipment for Sale JXSC Machine. Ball Mill. 【Capacity】 0.2-90 T/H 【Feeding size】 <25mm 【Discharge size】0.075-0.4mm 【Type】overflow ball mills, grate discharge ball mills 【Service】 30m quick . get price
Oct 22, 2020· Valid data shows that the suitable loading degree of the tumbling ball mill is 80%-90% of the total volume. Generally, the total load should not exceed five-quarters of the total capacity of the tumbling ball mill. Therefore, grinding steel balls generally account for 45%-55% of the total volume. In this range, the tumbling ball mill has the ...
Cobalt Steel Ball End Mills with Two Milling Ends. With better heat and wear resistance than high-speed steel, these cobalt steel end mills can run at higher speeds and provide better performance on hard material, such as cast iron, hardened steel, titanium, and tool steel. When one end wears out, turn the tool around for a sharp edge.
Aug 18, 2019· Factors That Affect Ball Mill Grinder Capacity And Quality 7 factors that affect the output of ball mill machine The grain size of raw material. Since the vertical kiln cement plant uses the small ball mill, the grain size of raw material can greatly affect its capacity and quality.
a low-speed ball tube mill and a high-speed attrition pulverizer. Specific topics include throughput capability, ... with mill capacities ranging from 7 to 300 tons per hour. ... with increasing mill size. As described earlier, it is a high-speed mill that pulverizes coal by the combination
Investigations were carried out in a laboratory ball mill having the size of DxL = 160x200 mm with a ribbed inside surface of the drum. The mill ball loading was 40% by volume, the rotation rate was equal to 85% of the critical speed. Balls were made from steel: S4146, extra high quality, having hardness 62 ± 2 HRC according to Rockwell.
Ball mill is widely used for milling varied kinds of ores or rocks in steel and non-steel mining and building materials business.The primary bearing of the ball mill with the shell diameter 900-2100mm is spherical liner bearing; for the shell diameter 2700mm, the primary bearing is completely closed self-aligning 120°bearing with strong alloy ...
Small / large size lab scale ball mill machine / grinding ball mills. Contact Directly & Get Quotes!! Wholesaler, Suppliers and Exporters, Manufacturer - Aimil.com. ... Laboratory Ball Mill 5 Kg capacity (AIM 441) Laboratory Ball Mill 10 Kg capacity (AIM 441 …
Number, size and mass of each ball size depends on mill load and whether or not the media is being added as the initial charge. For the initial chargin of a mill, Coghill and DeVaney (1937) defined the ball size as a function of the top size of the feed, i.e., dâ†"V = 0.40 K√F dB = …
Wet Grid Ball Mill |. Capacity: 0.5-500TPH Feed Size: ≤25 mm. Grid ball mill is widely used in smashing all kinds of ores and other materials, ore dressing and national economic departments like building and chemical industries etc. The size of ore shall not exceed 65mm and the best feed size is under 6mm. The effect in this job is better ...
Creative Ball Mill works on the principle of impact on the Feed material and also due to abrasion of one ball over the other and by the free fall of the balls. Due to the rotation of the mill, the mill charge is lifted on the inner periphery of the mill until a position of dynamic equilibrium reached,then it …
ball mill sizes and capacities. Very large tonnages can be ground with these ball mills because they are very effective material handling devices Ball mills are rated by power rather than capacity Today, the largest ball mill in operation is 853 m diameter and 1341 m long with a corresponding motor power of 22 MW (Toromocho, private communications) Ball Mill, Ball Mill For Sale
RETSCH is the world leading manufacturer of laboratory ball mills and offers the perfect product for each application. The High Energy Ball Mill E max and MM 500 were developed for grinding with the highest energy input. The innovative design of both, the mills and the grinding jars, allows for continuous grinding down to the nano range in the shortest amount of time - with only minor warming ...
Steel Ball Mills & Lined Ball Mills. Particle size reduction of materials in a ball mill with the presence of metallic balls or other media dates back to the late 1800's. The basic construction of a ball mill is a cylindrical container with journals at its axis. The cylinder is filled with grinding media (ceramic or …
May 15, 2015· In general, therefore, the required mill power is calculated using the following equation. where n is the number of efficiency factors, EFi, used and fo is the feed rate of new ore to the mill. The power calculated from equation 2 can be looked up in published tables (Rowland and Kjos, 1978) and the correct mill size and type can be selected.
Then, the mill capacities used to produce desired product size can be predicted by simulation using the kinetic parameter corresponding to the different ball sizes. The mill liners used are constructed from cast alloy steels, wear-resistant cast irons, or polymer (rubber) and polymer metal combinations.
A Slice Mill of 72" diameter by 12" wide would replicate the result of a normal production, mill 72" in diameter as 120" long. A Slice Mill is the same diameter as the production mill but shorter in length. Click to request a ball mill quote online or call 630-350-3012 to speak with an expert at Paul O. Abbe® to help you determine ...
Sep 01, 2013· Fig. 6 shows one set of results, where the circuit capacities are shown in three-ball-size ternary diagrams for various feed sizes with a circulation ratio of 2.5 at a size reduction ratio of 45:1 using a 1 m diameter ball mill.
UNUSED METSO 22' x 38' (6706mm x 11582mm) Ball Mill, 10,000 kW (13405 HP) Twin Pinion 50 Hz Motors and Gear Reducers. Inventory ID: 6C-CM02. UNUSED METSO 22' x 38' (6706mm x 11582mm) Ball Mill, 10,000 kW (13405 HP) Twin Pinion 50 Hz Motors and Gear Reducers. Manufacturer: METSO.
The closed circuit ball mill with size classification after milling (Figure 1) is common for primary ball mill applications, while classification of fresh feed before milling (Figure 2) is more commonly used for secondary ball mill applications. The relative capacity as function of circulating load and classification efficency for secondary ...
Ball Mill, Ball Mill For Sale. According to the need of customers, ball mills can realize both wet and dry production Ball mills have been designed in standard sizes of the final products between 0074 mm and 04 mm in diameter Feed particle size: less than 30mm Production capacity: 22250 tons / hour.
Nov 18, 2008· Basic principle Ball mill is generally used to grind material 1/4 inch and finer, down to the particle size of 20 to 75 microns. To achieve a reasonable efficiency with ball mills, they must be operated in a closed system. There is a specific operating speed for most efficient grinding.
Bionics Scientific is a leading laboratory ball mill manufacturers in India and offers its customers a fair deal in buying ball mills with facilities of customized size and capacities up to 10 Kg. In standard, these lab scale ball mill machines come in 2Kg, 5Kg and 10 Kg and are sold all over India at highly competitive price. These machines are supplied with steel grinding balls with ...