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May. 30, 2020
Crushers, grinders and pulverizers are grinding equipment used to convert or reduce rough materials (such as stones, coal or slag) into smaller, finer materials. Grinding equipment can be divided into two basic types: crusher and grinder. The industrial crusher is the first stage to reduce the particle size; further granulation takes place in the grinder or pulverizer.
The crusher will reduce the material through the crusher and the crusher. The crusher or the movable parts of the crusher will crush the material when it is placed under pressure. The force applied during this process may be compressive, shear or impact. When the internal strain level reaches a critical level, the material breaks. When the material breaks, it mainly releases energy as heat.
Industrial crushers crush or deform materials by impact or pressure, thereby reducing large pieces of rock, ore or waste to smaller sizes. During the primary crushing operation, the boulder-sized feed was reduced from 20 to 100 inches to a secondary crusher size of 1 to 20 inches or the ground feed size was 0.5 to 3 inches.
There are currently many different types of crushers with different designs and crushing processes. The correct choice depends on several factors, including the hardness of the material to be crushed, the grinding performance of the material, the moisture content, and the required reduction rate.
The Hydraulic series Cone Crusher uses a rotating cone that rotates eccentrically in the bowl to break the rock between the cone surface (called the sleeve) and the crusher bowl lining. The rotary crusher is very similar to the cone crusher, but the cone slope is steeper and the bowl surface is concave. When the gap between the bowl lining and the mantle narrows, the rock is crushed between the mantle by the turning cone.
The horizontal axis impactor (HSI) rotates the heavy-duty rotor on the horizontal axis. The guide bar attached to the rotor throws the material to be broken towards the collision-resistant apron (or curtain) equipped with replaceable bushings. Using the principle of surface forces, this impact will destroy the material and reduce the production of the material.
The vertical axis impactor (VSI) has a vertical axis and a closed rotor, which can rotate at high speed. There are two main types of VSI Sand Making Machine, namely rock crushing (autogenous) crusher and shoe anvil. The rock crusher's pit is filled with the entire circumference of the rock-filled chamber. The shoe-type and anvil-type VSI crusher has a composite metal alloy anvil, and its placement position can maximize the impact of the material thrown toward the fixed anvil by centrifugal force. Comparison with the cone crusher shows that the VSI crusher has higher energy efficiency, and can produce more fine materials within the same working conditions and time range.
Jaw Crusher For Crushing Granite
Jaw crusher for crushing granite uses mechanical pressure to force the material to move between two vertical jaws, these two jaws are fixed and the other is driven back and forth. As the material moves through the crusher, the gap between the two jaws narrows, further reducing the size. Jaw crushers are heavy machinery that can be used for hard materials in mining or quarries.
Concentrator is one of the newer technologies in the crushing industry. They have two rotors, each with large teeth fixed, and they rotate in opposite directions at low speed. The material to be crushed is fed into the rotor, then clamped, and then crushed between the teeth. When fully reduced, the crushed material falls between the rotors and is discharged from the bottom of the crusher.