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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Discharge from the SAG mill flows through a rubber-lined trommel and into a common mill discharge hopper. Oversize from the trommel screen (scats) is directed to the scats recycle conveyor for return on to the SAG mill feed conveyor. A CH-440 pebble crusher will be commissioned in Q4 2014 to reduce the scats size to -12mm.
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In this configuration, the water addition to the discharge hopper is varied to maintain a constant feed density to the cyclones. The pump speed is varied to maintain a limited range of levels in the discharge hopper. The mill is controlled to maintain a constant mill weight and circulating load (see control philosophy above). ... The SAG mill ...
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Differnce Between Mining And Wet Ball Millball Mill. Difference between ball mill and sag mill difference between sag mill and ball mill sag is an acronym for semiautogenous grinding sag mills are autogenous mills that also use grinding balls like a ball mill a sag mill is usually a primary or first stage grinder sag mills use a ball charge of 8 to 21 the largest sag mill is 42 128m in.
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This is a ¨low quality¨video of a SAG Mill´s discharge. But in any case, a SAG mill for you to see.
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The -4 mm screen undersize reports to the ball mill discharge hopper along with the ball mill discharge stream. This is pumped to the cyclone cluster, which is fitted with 26 inch hydrocyclones. The cyclone overflow exits the grinding circuit, reporting to the trash screens and leach feed thickener, while the cyclone underflow returns to the 7 ...
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The mill receives crushed ore and process water at a variable flow rate to achieve the correct pulp density. Lime, zinc sulphate and sodium metabisulphite (SMBS) are also dosed to the ball mill to condition the ore prior to the flotation circuit. The ball mill discharge passes over a slotted trommel screen with an aperture size of 10 mm x 25 mm.
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The cyclone underflow gravitates to the SAG mill feed chute via the primary flash flotation cell and the cyclone overflow gravitates to the ball mill discharge hopper. This slurry, along with the ball mill discharge, is pumped to the secondary cyclone cluster including twelve 250CVX cyclones which are designed to achieve a P80 of 45µm.
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Other work included structural steel design and detailed shop drawings for the SAG mill feed platform and steel platework drawings associated with the mill boil box, feed chute, and discharge hopper.
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By combining with SAG discharge and screening on the SAG discharge screens, top size control to the ball-mill circuit feed is maintained while still unloading …
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INDO MURO KENCANA Sag Mill Discharge Hopper, Sag Mill Feed Chute, Pregnant Elution Tank. INDOSARANA LOKA PRATAMA LOBP: Storage, Mixing, Pre-Mix Tanks, Piping works, Operating Platform, Civil works – Jatake. CISADANE JAYA PERKASA LOBP: …
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Similar to the impeller design affecting pump capacity, the pulp lifter design affects the discharge capacity (or mill throughput) of AG and SAG grinding mills. Generally, the discharge from AG/SAG mills consists of one or both of the following components: slurry (water and finer particles) and pebbles (20-100 mm).
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To determine the set point for the optimum mill load, a relation between load, consisting of different feed blends and performance (the maximum achievable throughput) is established. Similar observations are made for mill discharge density and mill discharge flow. The primary function at Level 3 is optimisation of the SAG mill operation.
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AG/SAG Mill Liners. We have supplied pulp lifters for AG/SAG Mills up to 40 ft in diameter. We are pioneers in design of both radial and curved pulp lifters and discharge systems. We also design and manufacture rubber and PolyStl™ grates, lifter bars, shell plates, end plates and all other associated grinding mill liner components. Learn More
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Feed hopper optional Ball charging bucket and chute optional Grinding Mill Discharge Trommel (optional) Internal spiral Openings set for application Reversible Grinding Mill Discharge Chute (Optional) Designed for application Grinding Mill Liners: Rubber, steel, or ceramic Configured as required to suit application Grinding Mill Trunnion Liners ...
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Figure 1 – Grinding plant, Sag Mill and Ball Mills Circuit . 4 DRIVE ARRANGEMENTS ... DISCHARGE PUMPS POSITIONS ... SLURRY SUCTION SUMP HOPPER Low level of slurry in the sump or low suction head can result in formation of vortices and an uneven distribution of flow, and may introduce air into the pump, ...
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On the outside of the mill, flanges are used to attach a stationary discharge hopper to prevent pulp splash or too much dust. The mill may be operated either as a peripheral discharge or a combination or peripheral and trunnion discharge unit, depending on the desired operating conditions.
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The SAG mill discharge screen undersize will gravitate to the mill discharge hopper, where it will be diluted with process water and pumped to the classifying hydrocyclone cluster. The combined cyclone overflow stream, with a nominal pulp density of 42% w/w solids, will gravitate to the trash screen.
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The SAG mill operates in closed circuit with a trommel screen and vibrating screen and the ball mills operate in closed circuit with hydrocyclones. The ball mills are equipped with a single trommel magnet to remove tramp steel from the mill discharge. Plant capacity has been selected to give a nominal flotation feed grind of 80% passing 75 µm.
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Mill drive arrangement. Mill drives are generally located on the outside of the mill to facilitate maintenance. • Mill discharge arrangement. If the SAG and ball mills feed separate pump systems this is not an issue. If the two stages feed the same pump system, …
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structure and the discharge hopper. The barrel, or blind trommel, is a short extension that bolts directly to the discharge flange of the ball mill. Its function is to transport the mill dis- charge material through the magnetic field. It is fabricated from stainless steel and has an abrasion-resistant wear liner. The barrel is fitted with eight
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8 x 10 ft (2.5 x 3 m) Allis Chalmers ball mill with 400 HP. Manufacturer: Allis-Chalmers - Welded steel shell - Feed and discharge heads are cast steel - Gearbox, 5.318 ratio - Induction motor: 575V, 1780 RPM, 400 HP - High-speed coupling - Some drawings available - Rubber liners with 60-70% life rem...
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FIG. 1 is a schematic representation of a perspective view of a SAG mill, without discharge chute; FIG. 2 is a schematic representation of the cylindrical grinding chamber of the SAG mill of FIG. 1, ... In this embodiment, feed hopper 22 connects directly into sleeve 28, and is mounted in a manner that permits rotation of cylinder 12.
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The material of SAG mill liners are low C or high C Cr-Mo Alloy steel,which depends on the specific working condition of the SAG mill. The hardness of AS2074 L2B is HB310-HB380. We can make big size SAG mill liner castings with Sodium Silicate Sand Process & Resin Sand Process.
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into the mill as recirculating material; this prevents overgrinding of the finished product in the ball mill discharge. Heat generated during the grinding process can be dispersed by good mill ventilation and by injecting water. Layout of a ball mill / sepol® ESV plant configuration polysius® ball mills 3
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Control of circulating load (cyclones online) based on mill discharge hopper level is being replaced with implementation of constant pressure control on both SAG and ball mill cyclones to stabilize circulating loads. SAG mill grate design causing flow restrictions and slurry pooling. Investigation of new grate design is underway.
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The SAG mill agreement has come about as First Majestic ordered a complete new SAG mill package, which, Condor says, is now superfluous to its requirements. The SAG mill has a mill diameter of 24 ft (7.3 m) and an effective grinding length of 18.5 ft and a structural charge mass of 315 t, …
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discharge hopper as shown in Figure 2. The stainless steel barrel is a short extension with an abrasion resistant wear liner that bolts directly to the discharge flange of the ball mill. The stainless steel barrel transports the mill discharge material through the 200-degree arc of permanent magnets. This magnetic arc is mounted on a steel
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32 x 12 ft (9.8 x 3.6 m) Hardinge Koppers ( ) SAG Mill 6800 HP. Manufacturer: . 32 x 12 ft (9.8 x 3.7 m) Hardinge Koppers SAG Mill 6800 HP (5100 kW) Two GE wound rotor induction motors: - 3400 HP - 710 RPM - 4000 V - Includes motor starter. - Includes lube system and temperature sensors.
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Machinery and Equipment buys and sells all types of Used Processing Mills for food, pharmaceutical, chemical and mining industries. View our inventory of more than 100 used mills immediately available.
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circuits, on both greenfield and retrofit projects, to increase feed rate to the SAG mill. In other words, crushing plants, from primary to quaternary circuits, are here to stay. ... must slowly meter the ore into the receiving hopper. 3 Table 2 Production Requirements - Typical ... discharge points; and conveyor belts can be widened to be more ...
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The SAG mill screen undersize, and the ball mill discharge combine, … In grate discharge type ball mill, a grate is provided at the discharge end of shell. PLANT DESCRIPTION INTI RAYMI S.A. (KORI KOLLO) NEWMONT MINING …
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SAG mill feed conveyor. The trommel and dewatering screen undersize gravitated into the SAG mill discharge hopper and this mixture was pumped to the ball mill feed. The overflow ball mill, Ø6.1 m x 9.0 m EGL fitted with a 5.8 MW drive, received feed from both SAG transfer and cyclone underflow. The ball mill discharge passed through a trommel ...
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By combining with SAG discharge and screening on the SAG discharge screens, top size control to the ball-mill circuit feed is maintained while still unloading the SAG circuit (Mosher et al, 2006). A variant of this method is to direct pebble-crushing …
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