In the mining and mineral processing industry, choosing a suitable stone crusher has a direct impact on productivity, operating costs and final product quality. As one of the most advanced and efficient devices for primary crushing of minerals, gyratory crushers play a key role in extraction and preparation processes. This type of stone crusher with a unique structure and excellent performance is used in large mines and various mining industries due to its high capacity and ability to crush hard materials.
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Due to its unique design and resistant structure, the gyratory stone crusher has the ability to crush all kinds of minerals, including very hard and dense stones. This device mainly consists of a central axis, a conical housing and a number of gears. The function of this device is that minerals enter the conical chamber from the top of the device and are subjected to pressure due to the rotational and compressive movement of the central axis and are transformed into smaller particles. The main components of gyratory crusher are:
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Rotary stone crusher is one of the devices installed in the first stage of processing lines and has the ability to crush very large stones. When a factory needs a device with a high capacity, it usually uses a gyratory (rotary) crusher, and otherwise, they use a jaw crusher. This stone crusher uses two incomplete cones to crush mineral stones, which are crushed by the middle core of the stone crusher.
Gyraiturous crusher specifications
Gyratory or rotary crushers can be used for the largest and coarsest types of materials, the largest ones have an opening of 138 cm equal to 72 inches and their weight is about 700 tons. The capacity of gyratory crushers is much more than jaw crushers with one type of input load. Therefore, gyratory stone crushers can crush coarser materials in the same time with greater capacity.
Crushing ratio or the ratio of initial load dimensions to product dimensions in these crushers is between 7-9. Although sometimes the crushing factor of stone crushers of this model reaches about 11 and their capacity is about 4000 tons. This fineness means that the dimensions of the raw materials after being placed in the stone crusher and the crushing process reach 9 to 7 times their smaller dimensions.
The capacity of these crushers is very high and its value can be obtained from this relationship: where D is the distance between the two jaws, d is the small opening, L is the length of the perimeter in the crusher opening and all sizes It is also in inches. T=0/75d(L-πD)
The rotating speed of this model of stone crusher is high compared to jaw crushers and reaches up to 300 revolutions per minute in devices with a large capacity and up to 800 revolutions per minute in small devices. The conical angle of the two jaws is between 20 and 24 degrees, and in the case of stone crushers whose input products are very large stones, this angle reaches about 27-30 degrees. It is obvious that the bigger the angle, the bigger the opening of the crusher, it will be able to break larger stones, but instead, its crushing coefficient will be low. Abrasion in this stone crusher depends on the type of steel used and the hardness of the stone, and usually with manganese steel, the amount of abrasion is 5-20 grams per ton, and when the presence of iron in the product is harmful, by using tungsten steels The amount of abrasion can be reduced to about one gram per ton.
The attribute
Giraturi ore application
Gyratory stone crusher can be used as the first or secondary stone crusher in mines. This stone crusher also has a very high ability to crush materials and hard stones. Along with the many features of the gyratory crusher, this crusher is also very useful for producing sand in the required dimensions. This stone crusher has a very high production capacity, which has achieved this capability due to having a large opening for entering materials and input load. Despite its many uses in the industry, especially for crushing hard materials in mines and factories, the gyratory stone crusher is very light in weight, and this light weight has made the device easy to transport and install.
One of the other features of gyratory crushers, which has increased the efficiency and popularity of these crushers compared to jaw crushers among consumers, is the continuous and significant development of this type of crushers. Another feature of gyratory crusher compared to jaw crusher is that unlike jaw crushers that work part-time, these crushers operate full-time. Also, in the same conditions, they can have up to twice the production capacity of jaw crushers, although they consume less power. The crushing ratio of the material in the gyratory crusher is twice that of the jaw crusher, but compared to the product produced in the same conditions, the weight of the product produced in the jaw model is more.
Gyrathy crusher function
These cone crushers consist of two incomplete vertical cones, one of which is placed inside the other. In the gyratory crusher, the top of the outer crust of these incomplete cones is downward and the top of the inner part is upward. Also, the outer cover remains fixed and the inner cover of the cone performs a rotational movement inside it.
The central axis in the gyratory hydrocon does not have full rotational movement, but is connected eccentrically to the axis of this crusher, and as a result, the central axis in addition to moving The rotation it does has a gyratory movement. The inner cone has a small amount of circular motion, but does not rotate. Motion is caused by a centrifugal force. As with some other crushers, the material between the two surfaces, which is gradually crushed, moves downward until it is small enough to pass through the gap. get out between two levels.
