Crusher roller

Powder or flakes Size reduction Jaw crusher, roller crusher, fluid jet mill... 

Dodge jaw crusher Disc crusher Roller mill... 

Cement gyratory, jaw and roll crushers, roller, and ball mills... 

Roll crushers Roller mills Vibration and vibro- high-speed machinery... 

When steel became available wooden crusher rollers were replaced by steel ones. Production went up, but the industry was hampered by the inefficiency of juice extraction. This was improved in later years by the use of larger central mills which could extract a larger fraction of the juice, but the industry remained in a depressed state until after independence. Today India is one of the lai est sugar-producing nations in the world, although the bulk of the product is used at home. Since a large part of the... 

Fig. 12.2. Crusher roller design (a) spiral ribbed rollers (b) grooved rollers with interconnecting profiles...

Crushers and Roller Mills. In this equipment group, stress is applied by either cmshing single particles or a bed of particles between two sohd surfaces. In general, most machines are used for coarse and medium-size reduction, with the exception of the high pressure roUer mill which can achieve extremely fine particle distributions. 

The Wilhams ring-roller mill Williams Patent Crusher Pulverizer Co.) is an air-swept mill with integral classifier of the rotating-blade type (the Spinner air classifier) or a double-cone type. The fluid-bed roller mill system has jets to introduce hot air into the bed of coal in the mill to diy it. 

Brechungs-ebene, /. (Optica) plane of refraction. -exponent, m. refractive index, -ge-setz, n. law of refraction. -Index, m. refractive index, -k effizient, m. coefficient of refraction. -kraft, /. refractive power, -messer, m. refractometer. -verhaltnis, n. refractive index, -vermfigen, n. refractive power, -winkel, m, angle of refraction, Brech-walzwerk, n. crushing rolls (or rollers), crushing mill. >weln, m. (Pharm.) wine of antimony, antimonial wine, -weiustein, m. tartar emetic, -werk, n. crusher, -wurzel, -wurz,/. ipecacuanha, ipecac. 

Walzen-glas, n. cylinder glass, -gldttwerk, n. Paper) calender, -kessel, m. cylinder boiler, cylindrical boiler, -lager, m. roller bearing, -muhle, /. roller mill, roll crusher, -satz, m. 

Use fluid jet mill for producing particles of micron size range, roller crusher for mm to cm size range, and jaw crusher for cm size range. 

Other coarse crushers Hammer mill Single roll crusher Pin mill Symons disc crusher Griffin mill Ring roller mill (Lopulco) Ball mill Tube mill Hardinge mill Babcock mill... 

Clays pan crushers, ring-rollers, and bead mills... 

Coal roll crushers, pulverizers, ball, ring-roller, and bowl mills... 

Talc and soapstones roll crushers, ring-roller, pebble, and jet mills... 

In industrial and laboratory settings the subdivision process more commonly involves the comminution of large particles or aggregates into smaller sizes, either dry with subsequent dispersion (size reduction to the order of a few pm) or directly in a slurry (size reduction to as small as a few tenths of pm). Examples of comminution machines include agitator ball mills, colloid mills, cutting mills, disk mills, homogenizers, jet mills, mechanical impact mills, ring-roller mills, and roll crushers. 

The native grapes and their hybrids were generally easy to harvest and crush—at first by feet and later with roller crushers. Open wood tanks were used for red wine fermentations and closed tanks for whites. Eastern grapes are difficult to press because the skins slip from the pulp when pressed. Therefore, with the traditional hydraulic presses, it was difficult to secure a high juice yield. Various expedients were used rack-and-cloth presses, heating the skins and pulp before pressing, etc. See Figure 2. 

The crushers were generally located above the fermenting tanks. Roller crushers followed by a stemmer was the usual practice. As a rule grapes are fermented without the stems in California. The exception noted was when the stems were dry and were then allowed to pass into the fermenting tanks, so that tannin can be drawn from the stems. This was probably only for red wines. 

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