PF Series horizontal impact crusher

IMPACT CRUSHER INTRODUCTION

Impact crushers reduce mineral materials such as concrete, asphalt and natural rock to size to produce valuable commodities. A rapidly rotating rotor throws the material against a solid, fixed impact wall. The impact breaks the material into smaller fragments. The result is a very uniform and cubic product leaving the crusher box.

An impact crusher is a machine that reduces the size of the material by impact rather than pressure. Depending on the processing stage, impact crushers are designated as primary, secondary, tertiary or quaternary rotor crushers.

Impact crushers are named for the method by which they reduce larger pieces of rock to smaller particle sizes. As the name implies, impact crushers accelerate the feed to high speeds and then throw the fast-moving rocks against the walls of the crushing chamber and each other. This collision, impact, breaks the stones into smaller sizes.

Impact crushers (also called impactors or horizontal shaft impactors) can be used in primary, secondary or tertiary applications. They use the inertia of a rotating shaft mounted on a rotor to break the material, resulting in a high crushing ratio. Impactors are often used as a cost-effective alternative to jaw and cone combination equipment because they provide good levels of crushing and product formation in many applications.

STANDARD FEATURES

★High Reduction Ratios: Impact crushers achieve high reduction ratios, meaning they are effective at breaking large pieces of material into smaller pieces quickly.

★Versatility: They can handle a wide range of materials, including softer rocks, concrete, asphalt, and even some harder materials.

★Uniform Product Shape: The impact force produces a more uniform and cubic product shape than other types of crushers, which can be very beneficial for specific applications.

★Low Operating Costs: Impact crushers generally have lower energy costs and maintenance requirements than other types of crushers, such as jaw or cone crushers.

★Easy Maintenance: Many impact crushers are designed with easy access to components, making maintenance and parts replacement simpler.

★Adjustable Output: The size of the output material can usually be adjusted by changing the speed of the rotor or the distance between the impact plate and the feed.

★Reduced Parts Wear: Because the material is broken down by impact rather than compression, there may be less wear on the crushing components, extending their service life.

★Environmental Benefits: Impact crushers can reduce the need for secondary crushing, which can reduce energy consumption and reduce emissions.

Overall, impact crushers are a popular choice for many applications due to their efficiency, effectiveness, and versatility in processing a wide variety of materials.

HOW AN IMPACT CRUSHER WORKS

The material enters the crushing chamber and meets the crushing bar or impact plate, which pushes the feed material against the crushing plate, reducing the impact. There are no screens or grilles inside the impact crusher to contain the material, so the material can be processed efficiently and cost-effectively at a high rate.

The working principle of the impact crusher is that the hammers collide with the object quickly, causing the object to break into small pieces. The crusher consists of a high-speed rotor rotating around a horizontal axis, on which hammers or plate hammers are mounted. The material is fed into the crusher chamber through the feed chute and meets the rotating hammers or plate hammers.

When the material enters the impact crusher, it is hit by the high-speed impact of the hammers or plate hammers, which transfers kinetic energy to the material. This energy causes the material to break and be thrown against the impact plate or curtain located on the wall of the crushing chamber. The impact plate changes the direction of the material flow and accelerates it again into the hammers or plate hammers for further crushing.

As the material repeatedly collides with the hammers or plate hammers, the material is further broken and reduced in size until it can pass through the gaps between the impact plates. The final broken material is discharged through the bottom of the crusher.

The size and shape of the product obtained from an impact crusher can be controlled by adjusting the gap between the impact plate and the rotor or by varying the speed of the rotor. This allows the production of different sized particles to meet specific requirements.

In summary, impact crushers work on the principle of rapid collision of material with a rotating hammer or plate hammer, resulting in its fragmentation and size reduction.                      

PARAMETER

PICTURES SHOW

HOW TO CHOOSE THE SUITABLE MACHINE

To design a suitable machine, please let us know the following information:

1. what kind of stone do you want to crush? limestone? granite? Or others.

2. what's the size of your stone before crushing? how many inches or mm? 

3. how big capacity do you need? 1t/h?10t/h?100t/h?

4. what are your requirements for the final product size? how many inches or mm? 0-5,5-10,10-20mm Or others?

5. Do you only need one set of crushers or a whole crushing line? (Include the feeder, crusher, screen, conveyor, and so on)

6. Do you need a mobile crushing machine or a stationary one?