Model No.: PC
Qualified materials crushed will be screened out and exit from the gap of the grate bars while the unqualified will be left in the crushing cavity to be further hammered and ground until reach the standard size. The size of the final product can be adjusted by changing the grate bars. The gap between the rotors and the grate bars can also be adjusted according to different requirement. To avoid the plugging of the crusher, the proportion of water for the crushing materials is no more than 20%.
When the hammer crusher or hammer crushing machine works, the motor drives the rotor to spin at high speed, materials are fed into the crushing cavity evenly, and then be impacted, cut and tore by high speed spinning hammerhead till they are completely crushed. Meanwhile, the gravity action of materials forces them to crash the baffle and grate bars on the frame. Materials with particle size smaller than the Screen size will pass the sieve plate while those with bigger particle size are stopped on the plate and will continue to be impacted and grounded by the hammer until they are crushed to the required particle size, finally, crushed materials will be discharged from the hammer crusher through the sieve plate.
Hammer crusher is generally used to crush materials whose size is in 600-1800mm into around 25mm.Hammer crusher is mainly adopted in cement, chemistry, electricity and metallurgy industry, especially for crushing finely. Hammer crusher is mainly composed by box, roller, hammer, counterattack plate and screen etc,.The crushed materials are generally coal, salt, chalk, plaster, brick and tile, limestone etc. It is also used to crush fiber, elastic broken wood, papers and waste. On the other hand, hammer crusher is also could replaced with Cone Crusher.
The machine is used to crush normal brittle rock such as limestone, sandstone, rock paste etc. The characters of this machine are that the material can be in big size and the crushing ratio is high. This machine can crush the large piece of rock that has been crushed for only one time and then the crushed rock can be sent to the mill for grinding. As the granularity becomes smaller, the capacity of this machine will increase.
Features of Hammer Crusher:
The enhancement rotor is designed with finite element analysis technology.
2. High crushing ratio. The crushing ratio ranges from 10 to 25 or even higher to 50.
3. The AMC alloy hammerhead enjoys a service life increased by 50~150%.
4. The theory of stone hitting effectively reduces the wear load of hammerhead and grid plate.
5. The military high strength artillery steel spindle is designed with vacuum duplex which increases the strength by 3-4 times.
Working Principle of Hammer Crusher:
In the hammer crusher, the motor drives the rotor to rotate at a high speed through the belt, and on the rotor there are a series of hammers. When the materials get into the working area of hammers, the rotating hammers with high rotation speed will crush them, and the products which are crushed to meet the required size can be discharged by the outlet and become the final products, then the large size products are brought back to the crushing area by the hammers for being re-crushed until they reach the required size.
Structure of Hammer Crusher:
The hammer crusher mainly consists of the box, disk, axis, hammer, grates, adjusting frame and coupling. The housing of the hammer crusher is a box made of steel plate, which can be divided into two parts along the center of the axis. The two parts are connected by the bolts. To avoid abrasion and transformation of the inner wall of the box under the impact of the materials, there are protecting scale boards in the housing of the hammer crusher. The types of disk are triangle and circle, with the former easy to be abraded than the latter. There are 6 mandrels on the disk, through which the hammers are installed staggered on the disk. The axis of rotator is supported by the axis on the ends. The grates are arranged by the grate frame, which is fixed on the box by bolts. The quill shaft is arranged with two eccentric shafts under the box. Rotate the handling along the sides of the machine to make an angle for the eccentric, the grates frame can be raised up or lowered down, which can adjust the gap between the hammer and the grates, and then the product installation can be completed.
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