Rotary crushers

Kreisel, m. top gyroscope, -bewegung,/. motion of a top, gyroscopic motion, -brecher, m. rotary crusher, -elektron, n. spinning electron. 

The selection guides given by Lowrison (1974) and Marshall (1974), which are reproduced in Tables 10.12 (see p. 465) and 10.13, can be used to make a preliminary selection based on particle size and material hardness. Descriptions of most of the equipment listed in these tables are given in Volume 2, Chapter 2 or can be found in the literature Perry et al. (1997), Hioms (1970), Lowrison (1974). The most commonly used equipment for coarse size reduction are jaw crushers and rotary crushers and for grinding, ball mills or their variants pebble, roll and tube mills. 

Magnetic pulley, conveyors, and elevators, rotary cooler, screening, crusher-mixer Particulates (dust) Exhaust system, cyclone, and baghouse... 

Applications include electric motor drives for conveyors and other material handling equipment such as stacker reclaimers, crushers, haulages, ball mills, cranes, hammer mills, rotary dryers, centrifuges, reciprocating pumps, winches, fans and wire drawing machines. 

In some size-reduction problems the feed stoeks are too tenacious or too resilient to be broken by compression, impact, or attrition, In other problems the feed must be reduced to particles of fixed dimensions. These requirements are met by devices that cut, chop, or tear the feed into a product with the desired characteristics. The sawtoothed crushers mentioned above do much of their work in this way. True cutting machines include rotary knife cutters and granulators. These devices find application in a variety of processes but are especially well adapted to size-reduction problems in the manufacture of rubber and plastics. They are finding important applications in recycling paper and plastic materials. ... 

During normal operation fresh pre-mixed (if applicable) feed (2) and recyclate (18) are proportioned by rotary gates and weigh belts (3). The ratio of fresh feed to recyclate should be kept constant it is only adjusted if the level controls in bins (2) and (18) require modification of compactor feed composition. Typically a changed relationship fresh feed to recyclate necessitates readjustment of the compactor (8) and, sometimes, the oversize crusher (16) parameters. Fresh feed and recyclate are homogenized in a low-intensity mixer (e.g.,. pug mill, mix muller) (4) and transported by buck-... 

The rotary pick mineral sizer has been used as a secondary crusher for soft to moderately hard limestone. The construction is similar to that of the rolls crusher, but the rotors are fitted with alloy steel teeth, which break the rock by a combination of compression, tension and shear. 

Coke for carbide production is crushed in two crushing units of three sets of double crusher rolls each, and dried in four rotary driers 5 4 feet diameter by 40 feet long. This prepared coke is stored in four concrete silos of 160 tons capacity. 

Primary breakers that treat ROM coal are usually rotary breakers, jaw crushers, or roll crushers some of these are listed below. 

The process encompasses an additional drying step, where the remaining water of the amorphous disilicate is liberated, and a subsequent annealing step, where the actual crystallization takes place. The crystalline sodium silicate emerging from the rotary kiln in the form of lumps is comminuted by means of mechanical mills and crushers to a powder grade of 100-150 pm particle size [3,21,49,51,66,95,96]. 

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