MENU
Dual two-stage technological scheme of the drum mill and ball mills Further, the product of separation (coarse) grinded till finish product in long ball mill. The plant capacity is 245...265 tph of cement with a specific surface area of 2700 cm2pg (CEM I 32.5 N) and 155...170 tph cement with a specific surface of 3500 cm2pg (CEM I 52,5 N).
عرض المزيد
Mill Charge Weight, tons Apparent Density ton/m3 Corresponds to the ratio between the Total Charge Weight and its Apparent Volume (including interstitial voids).
عرض المزيد
Accordingly power consumption per unit of capacity, Po will be expressed in kilowatt hours per short ton, or kw-hr per ton. In all equations D refers to the inside …
عرض المزيد
Ball Mill Power Calculation Example. A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a size distribution of 80% passing ¼ inch (6350...
عرض المزيد
The mill used for this comparison is a 4.4-meter diameter by 13.6 meter long ball mill with a 5000 HP drive motor. It is designed for approximately 90 s.ton per hour. This type two-compartment mill is a state- of-the-art shell supported cement finish mill. The torque and time requirements of the mill with the ball
عرض المزيد
Do you need a quick estimation of a ball mill's capacity or a simple method to estimate how much can a ball mill of a given size (diameter/lenght) grind for tonnage a product P80 size? Use these 2 …
عرض المزيد
Mill diameter and mill liner wear. Dettmer claims that with increasing mill diame ter, the mill liner wear per ton of mill feed decreases. This statement is expressed by the above mentioned author in the following quantitative terms: with increasing mill diameter, the mill capacity increases as a function of the diameter to the 2.6 power, but ...
عرض المزيد
Calculate the power draw and specific energy for semi-autogenous grinding (SAG) and ball mills. Enter the mill shell parameters, liner system parameters, charge fill parameters, …
عرض المزيد
The specific power consumption, measured in kWh per ton of mill feed, is also an important parameter. ... If one increases the charge and keep the ball:charge ratio the same, then the behaviour of ...
عرض المزيد
FOR SALE 60 Ton Per Hour Ball Mill3.4M Dia x 6.5M Long x 1,150 kW, located in Perth, Western Australia. For further information, click here or contact us at 0421 373 166.
عرض المزيد
The bond work index for a mesh-of-grind of 200 mesh for a rock consisting mainly of quartz is 17.5 kWh/ton. How much power in kW is needed to reduce the material in a wet-grinding ball mill from an 80% passing size of 1100 µm to an 80% passing size of 80 µm at a capacity of 10 ton/hr? ANSWER: 142.88 Could you please show the solution?
عرض المزيد
Referring to Table VI the L/D can be between 1.75 and 2.0 or even greater. Referring to Table VII a 3.05 meter (10 foot) by 3.05 meter (10 foot) overflow ball mill with a 40 percent by mill volume ball charge, new liners and 50 mm (2″) balls draws 491 HP. Using equation 5 there will be a loss of 0.55 Kw (0.74 Hp) per metric tonnes of balls.
عرض المزيد
Bond estimated the amount of wear in terms of kilograms per kWh based on the abrasion index, A;, i.e., Wet Ball Mill = kg kWh = 0.16(A i-0.015) 0.33; Dry Ball Mill = kg / kWh = 0.023A i 0.5; Replacement Ball Size. Rowland and Kjos proposed the use of their equation for the determination of the initial and replacement media size.
عرض المزيد
The first two Grinding Efficiency Measurement examples are given to show how to calculate Wio and Wioc for single stage ball mills. Figure 1. The first example is a comparison of two parallel mills from a daily operating report. Mill size 5.03m x 6.1m (16.5′ x 20′ with a ID of 16′).
عرض المزيد
The raw vertical roller mill has four rollers, 3000 KW main drive, 4.8 m table diameter, 2.16 m roller diameter with 330 t/h capacity (made by LOESCHE Company from Germany).
عرض المزيد
Learn about the design, operation and selection of ball mills in mineral processing. Find out how to calculate the number of balls required in a ball mill based on the charge volume and media characteristics.
عرض المزيد
SAG mill liner change-out life/cycle vs. tons/kg consumed. Ball mill liner efficiency based on liner geometry and its influence on kW-hours/ton, total tons/life cycle, and P80 transfer to cyclones. ... SAG mill breaks with stirring the kidney at optimized kidney specific gravity and maximum stir rate per mill revolution, whereas ball mill ...
عرض المزيد
Jaw crushers, Ball mills, Fluid energy mills. Ball mills, Jaw crushers, Fluid energy mills. Fluid energy mills, Jaw crushers, Ball mills. ... What would be the power consumption (in kW) if 10 tons per hour of this product is further crushed to (1times 10^{-4}) m size in the same mill? Assume that Rittinger's law is applicable.
عرض المزيد
The product from the SAG mill is further reduced in size using pebble crushers and ball mills. Hence, typical gold or copper ore requires between 2.0 and 7.5 kWh per ton of energy to reduce the particle size. Considering a typical mining operation processes 10,000 to 100,000 tons per day the energy expenditure in grinding is 50 …
عرض المزيد
Therefore Tons/hour = 3000/20 = 150 tph. Average kWh/ton of material ground = 2608/150 = 174 kWh; Power consumption per ton of clinker with a conversion ratio for consumption 1.55 : 1 = 17.4 x 1.55 = 27 kWh/ton; Using 4% gypsum – 1 ton clinker = 1.04 tons of cement; Therefore power consumption per ton of cement = …
عرض المزيد
Where N (kW) represented the power of ball mill pinion shaft; K ωb (kW/t) was the power for per ton ball medium; G (t) represented the weight of media loaded in the ball mill. Usually, the power of the ball mill pinion shaft was directly proportional to the motor power of the ball mill, and the correlation coefficient was 1.05–1.20.
عرض المزيد
Typically, the specific energy necessary to reduce the feed material to the desired product size varies in the range of 5–50 kWh/t. Therefore, it is important to have …
عرض المزيد
The composition of the ball mill. The ball mill is composed of main parts such as feeding part, discharging part, rotating part, transmission part (reducer, small transmission gear, motor, electric control). ... and the production capacity can reach more than 200 tons per hour, which meets the needs of modern industrial large-scale production ...
عرض المزيد
Ball Mill Design leftpanel. 0. SITUATION : Ore Work Index, kWh (net)/metric ton : Based on Net Power Available. Feed Size, F80, microns : Product Size, P80, microns : Total Plant Throughput, ton/hr : Specific Energy, kWh/ton : Obtained from Bond's Third Law of Comminution ...
عرض المزيد
Cleaning and Storing of Ball Mill Charge after the Bond Work Index Procedure is done: Add about 500 g of silica sand into the mill containing the ball charge. Seal the mill. Rotate for 20 revolutions to clean. Empty the mill charge and sand into the ball try once grinding is complete. Clean out the mill using a brush. Put the lid on the mill.
عرض المزيد
The calculated liner and ball wear is expressed in kilograms per kilowatt-hour (kg/kWh), and when multiplied by the specific power (kWh/t), the wear rates are given in kilograms per ton of feed. The wear in dry ball mills is approximately one-tenth of that in wet ball mills because of the inhibition of corrosion. The efficiency of ball mills as ...
عرض المزيد
Reengineering the flotation circuit reduced the powerconsumptionfrom55 kWh per metric ton ... ball mills (600 kW). The roller press discharge cake is wet screened over a screen (of 3.6
عرض المزيد
Get info of suppliers, manufacturers, exporters, traders of Ball Grinding Mill for buying in India. IndiaMART. Get Best Price. Shopping Sell. Help. Messages ... 3.7 KW/5 HP, 1440rpm. Electrical Details: 430 V /3~, 50Hz, 4 pole, 10Amps ... Shalimar Countues Bauxiite Ore Grinding Ball Mill, 15000, Capacity: 1-10 Ton Per Hour ₹ 45,00,000 Get ...
عرض المزيد
Feed and product size distribution of a ball mill are given in the following table, Work index (Wi) of the ore ground is 12 kWh per ton, Calculate the energy required for this size reduction, If the capacity of the mill is 150 t/h, what would be the power consumption in the mill? (20 pnts) Mill Feed Wt, Size fractions (um) (%) +500 2,60 -500 ...
عرض المزيد
Specific Energy, kWh/ton : ... Net kW / Mill : Available Net Power per Mill. MILL DIMENSIONS AND OPERATING CONDITIONS : Eff. Diameter (ft) Mill Diameter, inside liners. Eff. Length (ft) Effective Grinding Lenght. Mill Speed % Critical : ... Fraction of the Total Mill Power Draw contributed by the Ball Charge.
عرض المزيد
A.S. Erdem, Ş.L. Ergün, A.H. Benzer 222 () KW b D V p fC s C S s s ⎟+ ⎠ ⎞ ⎜ ⎝ ⎛ = × × − × × − 9−10 0.3 2 0.1 4.879 3.2 3 1 (1) where Kwb – Kilowatts per metric ton of balls D – Mill diameter inside liners in meters Vp – Fraction of mill volume loaded with balls fCs – Fraction of critical speed Ss – Ball size factor To determine the power that a dry grinding ...
عرض المزيد
There are two "inputs" to a ball mill circuit: the ore fed to the circuit and the power delivered by the grinding mill. A ball mill circuit has two "efficiencies": that of the ball mill grinding environment* and that of the classification system*. A ball mill circuit has two efficiencies because it has two main functions:
عرض المزيد
If P is less than 80% passing 70 microns, power consumption will be. Ball Mill Power Calculation Example. A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work ...
عرض المزيد
In the previous discussion the fact was established that the work done by a ball when it strikes at the end of its parabolic path is proportional to its weight and velocity; then, since the velocity may be considered as constant for all the balls in the mill, the work done by a ball is proportional to its weight. Since the amount of ore crushed varies as …
عرض المزيد
The work Index for limestone may be taken as 12.74 kWh/short ton. 5 Points (b) If a ball mill requires 3 kWh per ton of feed to reduce a feed of 1600 micron size to a product of 400 microns size, Show transcribed image text. There's just one step to solve this. Step 1
عرض المزيد
Learn how to characterize the performance of ball mill circuits using the functional performance equation. This module covers the elements, calculations and applications …
عرض المزيد
Copyright © 2024 Sofol Industry & Technology Group Co., Ltd.
المنتجات
محلول
حول الولايات المتحدة
اتصل بنا