AGITATED BALL MILL ANR-CL GCC fillers and coating pigments from ANR-CL-CL grinding systems 60% < 2 µm 45 kWh/t 90% < 2 µm 105 kWh/t 98% < 2 µm 180 kWh/t Slurry concentration 70 - 78 Weight% Viscosity 150 - 300 mPas Feed size 99,9 % < 45 µm The ANR-CL is designed for the cost-efficient ultrafine grinding of highly concentrated

A Review of Advanced Ball Mill Modelling ... unit mass of powder or ore in batch mills. Given typically in kWh/t, it has long been recognized as the most import - ant descriptor of the contribution of the process to the outcome of comminution. The importance of specific en-

The measured BW i was 14.0 and 6.6 kWh/t for the medium/hard and soft ore, respectively, at a closing screen size of 106 μm compared with the simulated values of 13.2 and 5.6 kWh/t. The ability to simulate the Bond work index test also allows examination of truncated ball mill feed size distributions on the work index.

AG/SAG Wio, AWio (kWh/t) 28.5 Ball Mill Wio, BWio 8.6 Circuit Wio, OWio 14.6 Bond Ball Mill Work Index, BWi, kWh/t 13.4 Bond Rod Mill Work Index, RWi, kWh/t 18.1 Table 1. Example of AG/SAG Ball Mill Circuit Wio Calculations [1] [2] ABstrAct Optimum use of power in grinding, both in terms of grinding efficiency and use of installed capital, can have

equipment to use to calculate KWh/t. What pieces of equipment should i use to calculate KWh/t. My grinding system has a roll press, ball mill and separator. Should i used: 1. Just the ball mill, roll press, separator, separator fan and ball mill fan. 2. All in 1 above including elevators. 3. include everything in the system.

In combination with a ball mill, the roller press performs a pre‐grinding of the clinker before it is fed into the ball mill. Integral grinding carried out by the combination of a roller press, a separator with desagglomerator stage and an elevator. ... Electric consumption (kWh/t) 35: 24:

Wc Specific energy for conventional crushing (kWh/t) Wh Specific energy for HPGRs (kWh/t) Wi Bond Work Index Ws Specific energy correction for size distribution (kWh/t) WiBM Bond Ball Mill Test Work Index (kWh/t) 3. KEYWORDS Autogenous Grinding (AG), Ball mill, Bond Work Index (Wi), Comminution circuit, High Pressure Grinding Rolls (HPGRs), Rod ...

iis the Bond ball mill work index (kWh/t), F80 is the feed 80 pct passing size (lm), and P80 is the product 80 pct passing size (lm). It can be seen that in the regime in which the Bond equation is valid, energy use increases exponentially as product size decreases with constant feed size, with an exponent of (approximately) 0.5.

The ball mill, an intermediate and fine-grinding device, is a tumbling drum with a 40% to 50% filling of balls. The material that is to be ground fills the voids between the balls. The tumbling balls capture the particles in ball/ball or ball/liner events and load them to the point of fracture.

Disadvantages are the energy consumption in kWh/t of around 30-40 kWh/t for clinker, is typically louder than other comminution machines and may require longer downtime periods for maintenance. 4 Ball mills come in two compartments with ball charge size of around 50mm-90mm for grinding the coarser material and the second compartment containing ...

12%As fine grinding is typically used on regrind applications, the feed tonnages to fine grinding circuits are small compared to head tonnages, typically 10 to 30 tph. However, the specific energies are often much larger than those encountered in intermediate milling and can be as high as 60 kWh/t.

600,000 t/y Slag Grinding Plant Model No.: GRMS46.41 Slag Powder Vertical Roller Mill Electricity Consumption: 40 kWh/t Standard Production Rate: 105 t/h Effective Diameter of Spinning Plate: 4600 mm 300,000 t/y Slag Grinding Plant Model Number: GRMS33.31 Slag Powder Vertical Roller Mill Electricity Consumption: 43 kWh/t Standard Production ...

The dry feed of a ball mill circuit is 300 t/h. The power at the pinion of the ball mill is 1800 kW. F80 = 80% passing size of the circuit feed, in microns = 2500 um P80 = 80% passing size of the circuit product, in microns = 225 um Solution Work Input (Energy input): W= (1800 kw)/ 300 t/h=6.0 kwh/t Then WI = Work Index of this circuit

of the mill (kWh/t) is determined. The specific energy is mainly a function of the ore hardness (A and b values), the feed size and the dimensions of the mill (specifically the aspect ratio) as well as to a . 0 10 20 30 40 50 60 70 80 90 100 0 0.5 1 1.5 2 2.5 3 3.5 4. t10 (%) Ecs (kWh/t) Weighted Fit 63 x 53 45 x 37.5 31.5 x 26.5 22.4 x 19 16 x ...

Ball mill work index kWh/t 19.4 (avg.) 17.33 20.9 (design) BACKGROUND The 40 ft SAG mill was supplied with a traditional bi-directional OEM lining system manufactured from chrome molybdenum steel with a total of 412 liners per set and a total liner mass of 773,931 kg. All the liners were designed

Example: material grindability & correlation with ball mill Evaluation of performance with help of Zeisel test Guiding values for the grindability of an OPC cement 95/5 are o 27-32 kWh/t at 3000 cm²/g acc. Blaine o 39-47 kWh/t at 4000 cm²/g acc. Blaine o 58-69 kWh/t at 5000 cm²/g acc. Blaine Energy consideration in cement grinding

AG/SAG/Ball Mill Sizing Gross Power Draw and Specific Energy Calculator for Autogenous Grinding (AG), Semi-Autogenous Grinding (SAG) and Ball Mills. Exit Mill Calculator ... [kWh/t] Required when F 80 (feed size) is larger than transfer size. Milling Circuit Arrangement. P xx Passing size control [%] ...

vertical ball mill slakers eliminate grit disposal problems When lime or water quality is poor and/or when lime consumption rates are high, STT designs slaking systems utilizing a vertical ball mill. The total grinding process of a vertical ball mill utilizes all residual reaction value, virtually eliminates grit disposal problems, and ...

South America Mining Special use 3" hardness60-65HRC Forged Steel Ball. Forged and casting grinding balls for ball mill, Dia20-150mm. Hot rolling B2 matrial SAG mill grinding balls for Cement Plant. Forged And Cast Grinding Balls For Mining / grinding media steel balls. Chrome cast iron steel mill media for cement plant, customized size.

(kWh/t) and WioACTis the Actual Operating Bond Work Index (kWh/t). • If the Wi Efficiency Ratio is 1.0 or , the circuit is per-forming with the same efficiency as the Bond Standard Circuit (and the ore Wi = circuit operating Wi), in accor-dance with the correlation that Bond (1962) established between plant operating data and test data ...

F80) in a SAG mill will require 29.5 kWh/t in the SAG mill. When ball mill grinding is added, an additional 12.3 kWh/t is needed to grind to a P80 of 74 microns to feed the process. 0 10 20 30 40 50 60 70 80 90 100 8 10 12 14 16 18 20 …

The operating work index for the overall circuit ranged from 14.6 kWh/t to 17.6 kWh/t. The Bond ball mill work index for the ore samples collected from surveys 3 and 4 was 17.2 and 18.7

Test WI of circuit feed ore = 16.1 kWh/t (The Bond ball mill test Work Index of the ore, whichapplies over the size reduction range of this circuit) W = 3,150 kW / 450 t/h = 7.0 kWh/t . The circuit's Bond WI Ratio Eff. = 16.1 / 14.4 = 1.12, or 112% . This circuit is performing approximately 12% better than predicted

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. Azzaroni (1981) and Dunn (1989) recommended the use of the following expression for the size of the makeup media:

BM = Ball mill specific energy from T 80 1.7 mm to final product P 80, using Bond's Law, (kWh/t) W T = Total grinding mill circuit specific energy (kWh/t) Note that K BM is the composite of EF3, EF4 and EF5 factors for ball milling (Rowland, 1982). Morrell and SMCC Morrell (2004) developed a methodology for predicting specific energy with

BALL MILL Specification Number A Process Data Sheet xxxx-xxx-xxx Sheet No : 1 of 2 Area: xxx Client : Operating Centre: Jakarta No. 1 Working 1 Service: ROM Ball Mill Item No: 1 of: Standby 0 xxxx-ML-001 2 Manufacturer: Model Type and Number: 3 OPERATING CONDITIONS 4 MATERIAL HANDLED: Crushed Ore 5 Hazard Considerations: Yes X No Type: 6 DESIGN …

Answer (1 of 2): Incomplete Question. Please allow me to ask few question, if you can answer them you will know the price without any difficulty: 1) Application of Ball Mill 2) Capacity of Ball Mill (in TPH or TPD) 3) What is the Work Index of Material to …

Tag Archives: vrm vs ball mill kwh/t - Ball Mill Grinding ... prinsip kerja ... Report on Mill Comminution Testing - Orezone 25 Feb 2013 ... Table 3 – Derived Values for A*b and t10 at 1 kWh / t . ..... x Conventional reciprocating crushers, eg jaw, gyratory and cone x HPGRs.

13.06 kWh/t 10.2 kWh/t 16.6 kWh/t None of the above No, the answer is incorrect. Score: 0 Accepted Answers: ... In ball mill fine product can be obtained with Longer residence time Large size balls Both of the above None of the above No, the answer is incorrect. Score: 0 …

Traditionally, ball mills are used in cement industry for raw material, fuel and product grinding. Ball mills use an established technology and offer certain advantages. However, they have higher energy demands. By using an appropriate kind of the more efficient roller mill technologies – either as a replacement or in combination with ball mills – considerable energy savings can …