The mill is fitted with 80 mm grates with total grate open area of 7.66 m 2 (Hart et al., 2001). A 4.5 m diameter by 5.2 m long trommel screens the discharge product at a cut size of ca. 12 mm. Material less than 12 mm falls into a cyclone feed sump, where it is combined with discharge from the ball mills.
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A Process Flow Diagram is presented in Figure 2. The 8.53 m Ø x 3.92 m EGL (28 x 12.8-ft) SAG mill is fitted with two 1850 kW motors. An operating ball charge in the range of 4 to 10% is used. The mill currently operates at a fixed speed of 72.5% of critical, however it has variable speed capability through the use of the liquid resistance ...
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Upon resolution of issues related to the mill grate design, ... • the use of a blend of ball mill balls to increase finer size particles and ... 2 x 3. 2 x 6.4. Grate s ize. Mm . 19. 19. 32 and ...
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3.2x13m Ball Mill, US $ 310000 - 780000 / Set, Jiangsu, China, Sinoma.Source from Sinoma-Liyang Heavy Machinery Co., Ltd. on Alibaba.com.
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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 ...
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The mill is powered by two 5500 hp D.C. motors. Nominal mill speed is 10.7 r.p.m. (78% critical) with a top speed of 11.3 r.p.m. The mill discharges through a grate with 3″ pebble ports onto a 14′ dia. x 13′ trommel screen with ¾" openings. On January 19, 1991 the mill was brought on line as a fully autogenous mill without pebble crushing.
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Ball Mills 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.
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Grate ball mill. Type G Grate Ball Mill is a cylindrical mill equipped with grate and lifter at the discharge end, designed to be most efficient for coarse grinding in an open or closed circuit with a SAND CLASSIFIER. Type G Ball Mill can handle 25mm feed. To grind such a large feed efficiently, it comes equipped with thick shell lining and ...
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Stage 1/2 grinding circuit The SAG mill is an 8.53 m diameter by 4.27 m long (3.81 m effective grinding length) grate discharge mill with a 5,595 kW synchronous motor installed and an air clutch for starting the mill. The mill operates at 76% critical speed with a ball charge of …
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1. The jack-up device of wet grate ball mill makes maintenance easy. 2. The hydrostatic and hydrodynamic bearings ensure the smooth operation of wet grate ball mill. 3. The low speed transmission of wet grate ball mill contributes to easy overhaul and maintenance. 4. The oil-mist lubrication device guarantees reliable performance of bearings. 5.
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3.2 X 6.35m Polysius Dry Raw Mill, 60 tph, 950kW 50Hz. 2.6m X 6.7m Cemtec Ball Mill, 690kW 50Hz. 10' X 18' KVS Coal Ball MIlls, Air Swept, 800HP 60Hz (2 units) 3.2m x 4.25m Polysius Air-Swept Coal Mill, 15 tph, 500kW 50Hz ... Rotary Valve, 1250 x 1250mm, 180m3/h Capacity, 0 …
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China. HS Code. 8474202000. Product Description. Grate Ball Mill Gold Ore Milling Machine. Working Principle. The transmission device drives cylinder to rotate. Materials and water are fed from the feeding end of cylinder and materials are grinded by impact and grinding of steel balls and ores into fine particles.
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(2) Grate discharge type ball mill In grate discharge type ball mill, a grate is provided at the discharge end of shell. Compared with the over flow type, over grinding is minimized, and this suitable for grinding to 60 – 100 mesh level. 1. Shell 2. Trunnion 3. Feed Side Trunnion Liner 4. Discharge Side Trunnion Liner 5. Trunnion Bearing 6 ...
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domestic 8.8 × 4.8 m SAG mill ( diameter represents nominal diameter, and length of the mill represents the effective grinding length inside the end liners and discharge grates), 6.2 × 9.5 m overflow ball mill and closed stockpile (maximum storage capacity at 120,000 t, effective storage capacity at …
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Ball mill introduction. The ball mill is a key equipment for grinding materials, widely used in powder-making production line such as cement, silicate sand, new-type building material, refractory material, fertilizer, ore dressing of ferrous metal and non-ferrous metal, glass ceramics, etc. Ball mill can grind various ores and materials with dry type or wet type.
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The length to diameter ratio of cylindrical mills range from 1 to 1 through 3 to 1. When the L/D ratio is 2 to 1 or greater, we refer to the mill as a Tube Mill. The two most popular types of ball ...
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Min. Order: 1 set. Contact Now. Small Wet Ore Grinding Ball Mill Gold Mining Machine Extraction Equipment. FOB Price: US $16,000-60,000 / set. Min. Order: 1 set. Contact Now. China Center-Drive Grinding Ball Mill Mining Processing Line for Mineral Processing. FOB Price: US $10,000-600,000 / set. Min. Order: 1 set.
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Capacity, MTPA 0.6 1.2 2 4 Production Capacity, t/h 90-110 155 280 520 Working area, m 2 108 189 306 528 Number of gas-air chambers, pcs. 13 21 34 32.5 Number of pallets cars 69 105 157 192 Pallet dimensions, m 3 X 1.5 3.0×1.5 ï5íXñ ð5íXñ Pallet speed, m/min 0.5-1.5 0.5-2.0 1.5-3.0 2-4.5 Maximum temperature above
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Stage 1/2 grinding circuit. The SAG mill is an 8.53 m diameter by 4.27 m long (3.81 m effective grinding length) grate discharge mill with a 5,595 kW synchronous motor installed and an air clutch for starting the mill. The mill operates at 76% critical speed with a ball charge of …
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Mill US Stoneware ball mill model 564, 1/2 hp, CS: Carbon Steel : SPC-8804: Mill attritor mill used spare shaft with arms: Stainless Steel : ... Mill Restch knife mill model SM1, CS, 2 hp, 3 1/4" x 3 1/4" throat size: Carbon Steel : SPC-8089: Mill Premier horizontal media mill model ML 1.5, 1.5 liter, Stainless Steel Contact Parts ...
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The current (2004) world cement production was about 2.11 billion tonnes per annum and it is increasing at about 1% per annum. The cement industry, as other mineralogical transformation process ...
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Ball Mills 【Capacity】 0.2-90 T/H 【Advantages】Designed for long service life, minimum maintenance, can grind and homogenize mineral ores down to the nano range, a large volume of processing capacity 【Max Feeding Size】 <25mm 【Discharge Size】0.075-0.4mm 【Types】Overflow ball mills, grate discharge ball mills 【Service】 24hrs quotation, custom-made parts, …
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2. Storing, Crushing and Conveying of Auxiliary Raw Materials. The open storage yard for sandstones has a specification of 60 m×20m, and a storage capacity of 5100t. And the open storage yard for iron ores has a specification of 32 m×20m, and a storage capacity of 2730 t. PC1609 hammer crusher is used to crush both sandstones and iron ores.
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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
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1 Plug&Grind XTREME unit with a production capacity of 350.000 t/y: ball mill Ø 3,2 x 11,5 m and 1,600kW. XP4i separator. Scope of supply includes equipment for interconnections with two other units of Plug&Grind® and raw material transport from client´s storage halls, …
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A General Model for Semi-autogenous and Autogenous Milling an 8 m diameter SAG mill with LID = 0.5 grinding a copper ore, and predicted maximum capacity and minimum kWh/ton at about 6070 ball load at 25070 total filling. Two FAG .... FIGURE 1. Illustration of grate classification treatment as an exit classifier .... defined as the mean value of K for particle sizes x i. +.
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Grate discharge mm 63 Discharge % solids wt% 72 SAG mill discharge screening Stage 1 trommel Stage 2 double deck screen Table 2 – Pre-Sampling Data Parameter Unit Design Criteria Sampled Collected from Mine Pit on 31-Oct-2017 TOM Laboratory SG g/cm3 2.66 2.69 Bulk density t/m3 1.6 1.58 – 1.76 Abrasion index g 0.30 (avg.)
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for small and medium capacity grinding applications, and are suitable for Ball, Rod and Pebble charges. ... (overflow or grate discharge) STANDARD MILL SIZES DIA. X L (m) INSTALLED POWER (kW) 1.05 x 1.4 18 1.2 x 2.3 37 ... 1.8 x 3.6 Sepro Ball Mill Sepro Pneumatic Tyre Drive System (PTD) Feed Chute Heavy Duty One (1) Piece Shell Weldment. Thermally
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cement mills. Assembly of a raw mill Ø 5.4 x 11 m with pre-drying chamber 3D model of a raw mill Raw mill Ø 5.4 x 11 m with a pre-drying chamber Example of a fl ow sheet of raw mill grinding circuit 2 4 6 8 1 – ball mill 2 – elevator 3 – separator VTP 4 – separating cyclone 5 – mill fan 6 …
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how to calculate hammermill capacity; 3.2 x 3.1 m grate ball mill capacity; large capacity vertical mills; granite stone crusher capacity; looking for gold ore crusher small capacity; raymond roller mill capacity for limestone; 1000 tons capacity ball mill for gold ore; vertical roller mill barite capacity; 18 36 jaw crusher capacity
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1.8 x 3.2 m (6x10 ft) new ball or rod mill - New manufacture 1.8 x 3.2 m (~6 x 10 ft) ball mill - American and European components - 50 and 60 Hz electrical available - Offered complete with components described below: - Cast steel heads, bearings housing...
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1. Hammer Crusher 400x300 mainly consists of frame, rotor, support iron and grate bars. 2.The frame is divided into two parts: Upper part and lower part which are welded by steel plates after being cut. 3.Liners made of high manganese steels within the frame can be replaced after being worn out.
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