Crushing Machinery Aggregate Processing Equipment Hammer Crusher Hammer Breaker Impact Crusher

Hammer crusher is a kind of equipment for crushing materials in the form of impact, which can be divided into single rotor and double rotor. It is a crusher that directly crushes the material with the maximum particle size of 600-1800 mm to a section below 25 or 25 mm. Hammer crusher is suitable for crushing medium hardness materials such as limestone, slag, coke, coal and other materials in cement, chemical industry, electric power, metallurgy and other industrial sectors. Hammer crusher is mainly composed of box, rotor, hammer head, backlash liner and sieve plate. When the hammer crusher works, the motor drives the rotor to rotate at high speed, and the material evenly enters the crusher chamber. The material is broken by the impact of the high-speed rotating hammer head and the shearing and tearing material. At the same time, the gravity of the material itself causes the material to rush from the high-speed rotating hammer head to the baffle plate and screen strip in the frame. The material larger than the sieve hole size is blocked on the sieve plate and continues to be hit by the hammer Grinding, until crushed to the required size of the discharged material, and finally through the sieve plate discharged outside the machine.

The advantages of hammer crusher are as follows: large crushing ratio (generally 10-25, up to 50), high production capacity, uniform products, less powder phenomenon, low energy consumption per unit product, simple structure, light equipment quality, easy operation and maintenance, etc. Hammer crusher series products are suitable for crushing various medium hardness and brittle materials, such as limestone, coal, salt, Baiya, gypsum, alum, bricks, tiles, coal gangue, etc. The compressive strength of crushed materials does not exceed 150 MPa. This machine is mainly used in cement, coal preparation, power generation, building materials and compound fertilizer industries. It can crush raw materials of different sizes into uniform particles, which is conducive to the next process processing. It has reliable mechanical structure, high production efficiency and good applicability.

The disadvantage of hammer crusher is that hammer head and castor bar sieve wear fast, overhaul and balance time is long, when crushing hard material, wear faster; when crushing viscous and wet material, it is easy to clog the slot of castor bar sieve, which is easy to cause shutdown (moisture content of material should not exceed 10%). When crushing hard materials, hammer head and liner wear heavily and consume more metal materials. It takes more maintenance time to replace easily worn parts frequently. When crushing viscous and wet materials, the castor bar is easy to clog and the production capacity is reduced.

Hammer crusher is used to crush all kinds of hard and weak abrasive materials. The compressive strength of the material does not exceed 100 MPa and the moisture content is less than 15%. Crushed materials are coal, salt, chalk, gypsum, bricks, limestone, etc.