Stone Crusher in Kenya

Kenya, officially the Republic of Kenya, is a sovereign state in the African Great Lakes region of Southeast Africa. Kenya has rich mineral resources, like soda, salt, fluorspar, limestone, barite, gold, silver, copper, aluminum, zinc and niobium, thorium, etc. We offer programs and equipment to process these ores, If you are interested, please contact us. Here, we will introduce you one of our machine: gyratory crusher which has play a important role in crushing plant.

Crushing Plant

Gyratory Crusher in Kenya

Gyratory Crusher employs a crushing head in the form of a truncated cone which is mounted on a shaft. The top end is held in a flexible bearing while the bottom end is driven eccentricly so as to describe a circle. The bowl of the machine is a portion of an inverted cone of massive construction and rigidly fixed. The continuous crushing action is caused by the crushing head rotating within the bowl causing the nipping arc to move around the bowl. Figure 4 shows the principle of this type of crusher. It consists of a heavy steel or cast frame which includes in its lower part an actuating mechanism, eccentric and driving gear, and in its upper part a cone shaped crushing chamber lined with wear resistant plates. Spanning the top of the chamber is a steady rest containing a machined journal fixing the main shaft. The crushing member consists of the main shaft and its crushing head or mantle. This assembly is suspended in the journal by means of a large adjustable nut. The lower end of the shaft passes through the eccentric, offsetting the lower end of the shaft. Both crushing members are subject to heavy wear and must be fitted with substantial wearing plates.

Gyratory crushers are capable of crushing very hard rocks with comparatively low maintenance costs but the value of spares required to be kept on hand is much higher than with other types of crusher. Feed problems can arise if the feed is not parallel to the steady rest.

Material Feed Direction to a Gyratory Crusher

Figure Above shows the best feed direction. Both sides of the crusher must receive equal amounts of feed to spread the wear caused by the impact of the feed on entry. Some breaking is done by impact of the feed onto the armored cover over the suspension nut but the major method of particle reduction is by compression.