This article will introduces the differences of impact crusher and hammer crusher from the structure, working principle and applications etc.
Hammer mills are machines with a rotating shaft that is fitted with free-swinging hammers.This assembly is enclosed by a drum and fed by a hopper.A screen keeps material inside the drum until the rotating hammers pulverize it into pieces of the desired size.These types of aggregate crushers are commonly used to produce crushed stone for landscaping or to process recycled asphalt.Hammer mills are sometimes known as impact crushers.
The latter impact crusher made of world-class manufacturing processes.It not only ensures the quality of the rotor parts, but also makes the machine runs more reliable.The hydraulic control system can be quickly adjusts outlet size and grain size.Its automatic hydraulic open device can quickly complete the plate hammer, the replacement of wearing parts, reduce downtime and maintenance time.In the coarse crushing operations, two crushing chamber can simplify the process; in the fine operation in the crushing chamber, three showed extraordinary.Two kinds of cavity can meet the requirements of the vast majority of coarse and fine crushing.
The stone from the surge pile is conveyed to a vibrating inclined screen called the scalping screen.This unit separates oversized stone from the smaller stone.The undersized material from the scalping screen is considered to be a product stream and is transported to a storage pile and sold as base material.The stone that is too large to pass through the top deck of the scalping screen is processed in the secondary crusher.Cone crushers are commonly used for secondary crushing (although impact crushers are sometimes used), which typically reduces material to about 2.5 to 10 centimeters (1 to 4 inches).The material (throughs) from the second level of the screen bypasses the secondary crusher because it is sufficiently small for the last crushing step.The output from the secondary crusher and the throughs from the secondary screen are transported by conveyor to the tertiary crushing circuit, which includes a sizing screen and a tertiary crusher.
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Impact crusher can break the stone below 350mpa, is suitable for crushing medium hardness stones, so impact crusher is is not recommended to crush the stones with higher hardness.Otherwise, the crusher will be damaged and the capacity of product will be reduced.
Compared with other crushers, the impact crusher has multiple ways to adjust the particle size of the product, which has obvious advantages in adjusting the particle size of the product.Regarding the particle size adjustment of the crushing machine, the following methods can be used:.
B.Impact crusher, as a medium and fine crushing equipment, has a finer discharging particle size; the impact crusher has the function of shaping, with good discharging particle shape of finished aggregate, less water chestnut angle, and the particle shape is better than the cone crusher.
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