Structural composition of impact crusher/crushing principle/discharge particle size adjustment device/crushing ratio

An impact crusher is a type of crushing equipment that uses impact energy to break down material. It is widely used in various industries, such as mining, construction, and aggregates production, for crushing hard and medium-hard materials like quartz, granite, limestone, and river stones. The structural composition, crushing principle, discharge particle size adjustment device, and crushing ratio of an impact crusher are as follows:

1. Structural composition:

An impact crusher mainly consists of the following components:

a. Machine frame: The machine frame is the foundation of the impact crusher, which supports the entire crushing system.

b. Rotor: The rotor is the core component of the impact crusher, installed on bearings and supported by the machine. The frame rotor is usually made of high-quality cast steel or wear-resistant materials, and the central shaft has a number of blades connected to it.

c. Impeller: The impeller is a circular plate with several blades mounted on the central shaft of the rotor. The blades are usually made of high-quality wear-resistant materials like chrome alloy or tungsten carbide.

d. Discharge opening: The discharge opening is located at the bottom of the impact crusher, through which the crushed material is discharged. The size of the discharge opening can be adjusted to control the particle size of the final product.

e. Blower: The blower is used to remove the fine dust produced during the crushing process and to ensure the smooth operation of the impact crusher.

f. Discharge particle size adjustment device: The discharge particle size adjustment device is used to adjust the particle size of the final product by controlling the size of the discharge opening.

g. Electric motor: The electric motor provides the power for the impact crusher to run.

2. Crushing principle:

The impact crusher works based on the principle of impact energy. When the rotor rotates at high speed, the blades on the rotor and impeller throw the raw materials at a high speed against the impact plates or each other, causing the raw materials to be broken down by impact energy.This process repeatedly occurs, reducing the particle size of the raw materials until they reach the desired size.

3. Discharge particle size adjustment device:

The discharge particle size adjustment device is usually a hydraulic or mechanical system that allows for the adjustment of the size of the discharge opening. By adjusting the size of the discharge opening, the particle size of the final product can be controlled to meet the specific requirements of the application.

4. Crushing ratio:

The crushing ratio is a measure of the reduction in particle size that occurs during the crushing process. It is typically expressed as a ratio of the largest particle size in the raw material to the smallest particle size in the final product. The crushing ratio of an impact crusher can vary depending on the specific model and the operating conditions, but it is generally higher than that of other types of crushers, such as jaw crushers and cone crushers. This high crushing ratio makes impact crushers suitable for crushing hard and medium-hard materials with a low iron content.