The principal function of the grate is to retain the ball charge in the mill while permitting a peripheral discharge The efficiency of the classifier when a ballmill is run in closed circuit directly affects both tonnage and fineness This will be discussed under capacity Conditions Affecting BallMill Capacity
As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.
Feeding Granularity: ≤20-≤25mm
Applied Materials: Limestone, calcite, barite, dolomite, potassium feldspar, marble, talcum, gypsum, kaolin, bentonite, medical stone, rock phosphate, manganese ore, iron ore, copper ore, gold ore,quartz, active carbon, carbon black, ceramic, coal, etc.
Applicable Range: Cement, silicate product, new building material, refractory material, fertilizer, black and non-ferrous metal ore dressing and glass ceramics production industry, etc.
Configuration: Jaw crusher, grinding mill, bucket elevator, magnetic vibrating feeder, transmission gear, main engine.
Applied Materials: Feldspar, calcite, talc, barite, fluorite, rare earth, marble, ceramics, bauxite, manganese, phosphate rock, etc.
Application Area: Building materials, chemicals, fertilizer, metallurgy, mining, refractory, ceramic, steel, thermal power, coal, etc.
Applied Materials:Limestone, granite, basalt, andesite, iron ore, quartz, diabase, iron ore, gold ore, copper ore,etc.
Related Equipments: vibrating feeder, jaw crusher, cone crusher, sand maker and vibrating screen.
Calcium carbonate is the main raw material to make cement, lime and calcium carbide, and it is an indispensable flux limestone in metallurgical industry.
The 250t/h basalt crushing line owner has a large-sized mining field in Zambia.
Metso has designed manufactured and installed over 8000 ball and pebble mills all over the world for a wide range of applications Some of those applications are grate discharge peripheral discharge dry grinding special length to diameter ratio high temperature milling oprations and more
Allis Chalmers Ball Mill 6 foot diameter 17 feet long 2 compartments End peripheral discharge New Magotteaux liners 250 hp Marathon electric motor 480 volt 1788 rpm flender gear box 272 tooth bull gear 18 tooth pinion gear Complete with new mixed media charge Unit has only been tested Project cancelled and never went into production
4 Types on the Basis of Discharge Methods 1 Overflow Type Ore discharged through hollow shaft 2 Grid Type Ore discharged through grid plate 3 Peripheral Type Ore discharged around the cylinder 5 Types on the Basis of Drive Mode 1 Center Drive Ball Mill The drive power device is in the center of the fuselage and the motor realizes the operation of the ball mill through the
peripheral discharge versus conventional discharge for largediameter millsand 6 design of largediameter mills with special reference to discharge arrangements SECONDARY MILLS AT GEDULD The need atweekly intervals to clear the blocked holes in the screens ofthesecondary pebble mills arose from the smaller diameter of
A rod mill differs from a ball mill in that the comparatively rigid grinding media operate in a relatively fixed path and reduction results fram line rather than point contact between grinding surfaces Conventional rod mills are either high or law discharge In the high discharge mill the discharge trunnion is the same size or only slightly
The mill was loaded with 263 kg of 5mm steel balls corresponding to 60 of the mill volume filled by a ball bed A steadystate condition was established by feeding the sand at a given feed rate until the solid discharge rate attained the same value as the feed rate and the size distribution of the product did not change with time
248 lb of ball mill feed sample from plant survey Sample is reconstituted with water to be the same percent solids as the plant ball mill discharge Mill speed 352 rpm 65 percent of critical speed Length of time of test 363 seconds Average torque reading 1056 inlbs Mill HP 1056 inlbs
TITAN BALL MILLS Based on the MPT TITAN design the Mills are girth gear dual pinion driven with selfaligned flanged motors running on hydrodynamic oil lubricated bearings The TITAN design enables you to run full process load 40 Ball charge at 80 critical speed – Max grinding power for every shell size Standard Mill Types Available
The cost of a ball mill conversion from overflow to grate discharge is ‘fairly’ affordable at 65000 for a 13′ x 15′ mill This is only for the discharge head grates and pulp filters rubber A comparison in laboratory of Overflow Discharge Ball Mill VS Grate Discharge Ball Mill