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The voids (or interstitial space) within a rod load are approximately half those in a ball mill grinding load.Rods in place weigh approximately 400.

Ball mill is an efficient tool for grinding many materials into fine powder.The ball mill is used to grind many kinds of mine and other materials, or to select the mine.It is widely used in building material, chemical industry, etc.There are two ways of grinding: the dry process and the wet process.It can be divided into tabular type and flowing type according to different forms of discharging material.

What industries can it be applied? ball mill is widely used in powder-making production line including cement industry, chemical industry, new building materials, fire-resistant materials, fertilizer, porcelain and glass industry for grinding iron ore, gold ore, concrete, slag, zinc, copper ore, tantalize, etc.This equipment carries on the dry type or the wet powder to each kind of ore and other gradable material rubs.

In general, the ball volume of the ball mill steel ball is lower than the horizontal line in the cylinder.It is better to control the ball amount at about 40-50%.For smaller ball mills, the ball balls accounts about 35% at best, this can effectively ensure that the steel ball can fall freely, so that creates a larger impact force.

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.

The ball mill is one of the most widely used super fineness grinding equipments in the industry.There are many types such as tube ball mill, cement ball mill, super fineness and energy-saving ball mill, overflow ball mill, chinaware ball mill, and grid ball mill.Ball mill is mainly used to grind materials in mineral, cement, refractory, chemical industry, etc.Ball mill has dry and wet ways.

When the ball when the increase in quantity.The increasing power of ball mill, but until the noise signals, basically is found by large slope down.With the increasing of quantity of ball mill, export differential pressure also slightly increased.When feed greater depth.Differential pressure is rising sharply.

Ballmill machine is a very important facility in enamel production, enamel frit needto be milled with water by ball mill machine.This is very necessary processfor make enamel frit into enamel slip, the milling time depends on propertiesof the frit, types of milling additives, amount of solvent and the requirementsfor the fineness of ready to use powder or enamel slurry.Generally, it can befew hours to ten more hours.

2.Grinding equipment: the combination of high-efficiency grinding machine and ball mill forms a closed circuit system and improves the grinding efficiency.The waste gas from rotary kiln can be used again to dry powder materials.

After cutting parts on a cnc, nearly everyone interested in digital woodworking wants to explore the world of 3d carving.When you add a third dimension to your work, the mills you work with have a new set of requirements.They must be able to reach into curves and create geometry that is not possible with flat end mills.for 3d carving, the cnc mills are round on the bottom.These are called ball mills.

Generally speaking, due to the forced discharge mode, the grate discharge ball mill has higher production capacity than the overflow ball mill, while its discharge particle size is larger.

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