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design, so that they can identify ways of reducing overall electrical power consumption. Electronic control of crusher discharge opening and feed rate. With adjustment of a crushers discharge opening, as the production continues through an on-line coarse size analysis of the crushed product digital image analyses. Dance, A. 2001
has to follow these three steps crusher selection, crusher layout and process design. 2.4 Crushers . A crusher is a tool or machine that is used to reduce the size of a large solid particle to a smaller solid particle. The ore can have a size of up to 400mm. There are many types of crushers but the major ones are the jaw, gyratory and the cone ...
crusher. Primary Crusher The first crusher in a crushing system into which material is fed. Succeeding crushers in the system are referred to as secondary or tertiary crushers. Product Output from the crusher. Reduction Ratio The ratio of the top size of input material to the top size of crusher
Gyratory crusher is generally used as a primary crusher. The crusher is popular due to its high throughput capacity and the large sized opening. The crusher is well suited for handling direct feed from hauldump trucks. The gyratory crusher is mainly used in rock that is abrasive andor has high compressive strength. ...
Figure 5.1 Schematic diagram of a crusher showingg the open- and closed-side settings. 5.1 Jaw and Gyratory Crushers. Jaw and gyratory crushers are used mostly for primary crushing. They are characterized by wide gape and narrow discharge and are designed to handle large quantities of material. The capacity of the crusher is determined by its size.
design characteristics They are used in mines and quarries as primary crushers to crush blasted rockpile, which may have edge lengths of over 2,000 mm depending on the blasting method, in preparation for finish crushing or conveying. For these tasks thyssenkrupp Industrial Solutions has in its range two types of jaw
20 to 24 . On large primary crushers, using curved or nonchoking concaves and where gravity is of marked aid to nip with the large pieces at the mouth. the angle runs from 25 to 30 . The parameters used in the basic design of a gyratory crusher are nip angle, feed rate, feed opening, closed-side setting, work index, and horsepower.
Design The TST jaw crushers are engineered for trouble-free operation, characterized by safe and easy serviceability. The most modern analysis techniques and features available to date ensure a strong and reliable crusher design. The TST is equipped with an efficient crushing motion, modular frame
Design criteria can be calculated from a simple spreadsheet as shown in Table 2. Mine haul-truck capacity is an important factor at primary crusher installations, because it is cost-effective to integrate truck cycle time at the crusher station with mineshovel operations. If a primary crusher dump pocket is undersized and unable
Dec 23, 2015 Dependability and long service life are landmarks of good primary crusher design of up to 30 yrs. The selection of the primary crusher must consider best-in-breed maintenance services as the whole mines production goes through 1 or 2 of these machines and make the in-pit crusher a vital piece of equipment. Ultimately, the mining sequence ...
Due to their simple design and easy maintainability jaw crushers are widely used as primary size reduction equipment in mechanical and mining industries. As jaw crushers break minerals amp ores of high strength and the economy of many industries depends on its performance it is essential to improve the efficiency of the present design.
The first considerations are at what point in the process the crusher will be used, the type of material, and the output required. Use the table below as a guide. Primary Gyratory Crusher B G G Primary Jaw Crusher G B G Primary HSI Impact Crushers P P B Secondary Cone Crushers S
a Primary crusher The raw material from mines is processed first in primary crushers. The input of these crushers is relatively wider and the output products are coarser in size. Example - Jaw crusher, Gyratory crusher, Impact Crushers, etc. b Secondary crusher- The crushed rocks from primary crusher are sent to these secondary
mechanism of size reduction 4. There are primary and secondary crushers. A primary crusher reduces large particles into smaller sizes for further crushing by the secondary crusher. Examples of crushers include jaw crusher, gyratory crusher and roll crusher. A double roll crusher
Dec 23, 2015 How you select your primary crusher will be based on factors like moisture content, maximum rock lump size, material density SG, abrasion index, degradability and it being prone to dusting or not. The crusher capacities given by manufacturers are typically in tons of 2,000 lbs. and are based on crushing limestone weighing loose about 2,700 lbs. per yard3 and having a specific gravity of 2.6.