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50-100mm steel rod is usually used as grinding medium in rod mill, while steel ball is used as grinding medium in ball mill.

3.This ore grinder mill machine could be used as the pre-grinding equipment before ball mill so as to increase ball mill efficiency by 50%.

Ball mill works on impact principle that is size reduction is done by the impact.It contains a hollow cylinder shell that rotates around its axis and is partially filled with the balls.The ball mill may be operated in a batch or continuous fashion and wet or dry.

Ball mill according towards present technological developments, big superfine ball mill continues to be in a location to attain a one-time ultrafine digesting of components by ball mill therapy of fly ash fines, typical particle size, surface area productive progress, immediate mixing in concrete can spend less cement raw materials, to enhance the workability on the concrete mixture, improve the plasticity of concrete and chaos.Fly ash continues to be extensively applied in concrete admixtures, hollow brick, ceramics and building performs backfill.Wider and wider utilization of room implemented through the progress of fly ash, a whole lot more and a whole lot more higher specialized specifications within the ball mill.Equipment within the market place demand, and continuously enhance the mill for digesting energy as properly as the fineness of have to make effective use on the function.Hongxing mill will grow to be the mainstream gear applied through the grinding equipment.

3.What is the feed size for a ultra-fine grinder?a) > 34 inchesb) < 34 inchesc) > 12 inchesd) < 12 inchesview answeranswer: bexplanation: the feed size of ultra-fine grinder is less than 34 inches and the product sizes between 1 to 20 micro meter passing through 100 mesh.4.The fluid energy mill involves __________a) pressureb) temperaturec) fluidd) densityview answeranswer: aexplanation: the fluid energy mill usually uses compressed air and super-heated steam admitted at a pressure of 7 atm through nozzles.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.

1.High efficiency of grinding.Using the principle of material bed's crushing and squeezing, the material is rolled, cut, impacted in the mills; the airflow in the mill can take the grinded materials out timely to avoid excessively grinded; the materials generally stay in the mill for 2-4 minutes.It has the 165% grinding efficiency as the ball mill and the power consumption can be reduced by 30% or so.

We can supply any type of used ball mills for the food, chemical, 2500 hp ball mill: dominion engineering rod mill; cement ball mill;.

Before going to the customers, however, the clinker is put into a tube or ball mill.The ball mill is basically a large rotating drum filled with steel balls of different sizes.The size of the balls depends on the desired fineness of the cement powder.They basically crush and grind the clinker into the desired fineness.

Rod ball mill is applied for triturating or crude crushing all kinds of ores with different grades and materials by wet process, especially used for adjusting the .

Sand washing machinewww.China-crusher.Com/sand-washer3.Htmlimpact crushing machinewww.China-crusher.Com/impact-breaker1.Htmlball millswww.China-crusher.Com/ball-mill5.Html.

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