Wet Overflow Ball Mill Of Flsmidsh For Steel Plants

Here the structure means the ratio of ball mill length to its diameter.According to the industrial tests, the capacity varies with the ball mill types; even from the same type of ball mill, the energy consumption and milling efficiency are different.

5.At what speed stirred mill operates?a) 50 to 500 rpmb) 5 to 10 rpmc) 10 to 500 rpmd) 100 to 1500 rpmview answeranswer: dexplanation: in a stirred mill, a central paddle wheel or impellor armature stirs the media at speed from 100 to 1500 rpm.Advertisement freestar.Queue.Push(function () { googletag.Display('sanfoundry_300x250_320x50_320x100_inlist2'); }); 6.What does colloid mill produces?a) emulsions and solid dispersionsb) wet and dry productsc) coarse and fine particlesd) broad particlesview answeranswer: aexplanation: colloidal suspensions, emulsions and solid dispersions are produced by means of colloid mills or dispersions mills.7.The clearance between rotor and stator is ______a) 5 to 10 mmb) 1 to 2.5 mmc) 0 to 1.25 mmd) 5 to 15 mmview answeranswer: cexplanation: the mill consists of a flat rotor and stator, the clearance between the rotor and stator is generally 1 to 1.25 mm.8.The power consumption of colloid mill is _______a) very lowb) optimumc) criticald) very highview answeranswer: dexplanation: the power consumption is very high and the material should therefore be ground as fine as possible before it is fed to mill.9.The speed of a rotary knife cutter is ___a) 100 to 500 rev/minb) 200 to 900 rev/minc) 400 to 600 rev/mind) 50 to 60 rev/minview answeranswer: cexplanation: a rotary knife cutter contains a horizontal rotor turning at 200 to 900 revolutions per minute, which is cylindrical chamber.10.______ indicates the impact of resistance.A) toughnessb) rigidityc) brittlenessd) fatigueview answeranswer: aexplanation: toughness indicates the impact of resistance.It is the inverse of friability and brittleness, it is also a deciding factor for commutation.Advertisement freestar.Queue.Push(function () { googletag.Display('sanfoundry_300x250_320x50_btf_1'); }); sanfoundry global education & learning series mechanical operations.To practice all areas of mechanical operations, here is complete set of 1000+ multiple choice questions and answers. prev page - mechanical operations questions and answers intermediate and fine crushers next page - mechanical operations questions and answers advantages of ball mill.

There are two methods to make bp: the ball mill method and the precipitation (or 'cia') method.You'll need aball millin any case.While both methods work, they each have their own advantages and disadvantages.The main disadvantage of the ball mill method is that it is essential that you have a safe place to let your mill do it's work.You need a place with no buildings, people or animals whatsoever in the neighbourhood, and you need to be able to turn it on and off remotely.It also makes a lot of noise.Advantage of the ball mill method is that it is less laborous.You can simply charge your mill with the ingredients, turn it on, do something else for a couple of hours and you're done.The cia method is much more work: you first mill the charcoal and sulfur together (just like you would with the ball mill method), but this is followed by dissolving the potassium nitrate in hot boiling water which is then mixed with the milled charcoal/sulfur mixture.The potassium nitrate is then precipitated from the solution by mixing with ice cold isopropyl alcohol.This is followed by filtering (messy) and drying (takes a long time, and a good place with no ignition sources, since there is a flammable liquid involved).

However, how to improve the ball mill efficiency has always been an important subject for engineers as well as a mattered issue to investors.

Ball mill's double-row self-aligning spherical roller bearing replaces babbitt-lined bearing.Friction resistance is significantly lowered down, effortless to begin and 20-30% of power is saved.Ball grinder's grooved magnesium kiln and ringed liner raises contacting surface area in between balls and ores, enhancing milling impact and saving power via its lifting impact for the materials.Ball grinder's all-in-one frame is employed in middle-sized or small-sized machinery, facilitating engineering design and gear installation.Ball mill's big discharging outlet and large capacity, discharge coarse particles, usually employed in very first phase rotary kiln milling.The energy-saving cone ball mill may be employed for grinding particles with the procedure of material mineral resources, for instance gold, silver, iron, copper, lead, zinc etc., and non-metal mineral resources.

The feeder feeds material continuously and evenly, the ground material will be continuously discharged from the ball mill.The wet ball mill can be divided into three types according to the motion characteristics: a simple swing type wet ball mill, a complex swing type wet ball mill, and a hybrid swing type wet ball mill.

Thus, the performance and service life of the lining plate are issues that users are very concerned about, for its performance will directly affect the performance of the ball mill.The following are the 10 requirements for the liner installation.

Inside the ball mill, the crushed copper ore will grind the ore to about 0.2 mm with 3-inch steel balls.This copper ore slurry is as a final point pumped to the flotation deck.This copper ore slurry is last but not least pumped to the flotation deck with the great sulfide ore (~-0.5 mm) going to froth flotation cells for recovery of copper.

After mining ore has been sufficiently crushed by use of a jaw crusher, gyratory crusher or impact crusher the next step is to grind that material down to even finer powders and particles for processing.There are several types of used grinding equipment that can be utilized to perform this task including ball mills, rod mills, sag mills and hammer mills.Each type of grinding press has its advantages depending on the mining ore being used.

Raw material: limestone fineness requirement: 200 mesh limestone grinding plant: trapezium mill, ball mill, high-pressure grinding mill, raymond mill.

Coal ball mill, as a piece of mineral processing equipment, a ball mill is widely used in beneficiation, building material and chemical industries.Ball mill is suitable for dry-type ore grinding and wet-type ore grinding.According to different discharging methods, ball mills fall into grate ball mill and overflow ball mill.

Mining gear could be the device for ore mining and wealthy ore selection.It includes ore mining machine, ore choice machine, crusher device, smashing machine, milling machine, washing devices, screening machines, boring devices for mining, mining loading machinery and ancillary gear.Within the broad definition, the mine detecting resource also belongs to mining gadget.Besides, a large number of crushers, ball mill, drying machine and transferring machine are utilized in mining functions.


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