Polygonmach Secondary Impact Crusher
The secondary impact crusher is mainly an impactor. This can be in the form of Horizontal Shaft Impactor or HSI. This particular crusher was designed with the thought of taking high velocity forces of impact into the material to be crushed to a much smaller size for secondary or even tertiary applications. Generally speaking, the use of Secondary Impact Crusher versus Primary Impact Crusher could be to obtain a finer, more refined particle and smaller-sized end product. Material breaking is obtained by the impact forces developed by the hammers or blow bars elastically mounted on a rotating rotor. Secondary impact crushers are designed for further reduction of products obtained from the primary crusher in mining, quarrying, and recycling. Secondary impact crushers obtain the desired end product size or shape.
It is suitable for making well-shaped aggregate, finely crushed materials, and application in secondary crushing where fine-sized particles are required. They are versatile machines with a wide application range; thus, they are of great use in different applications if product refinement is the target. The adjustment of the settings in Secondary Impact Crushers enables it to control material output size and shape, hence versatile enough to fit into specific requirements. It would imply that the force caused by these machines would actually result in effective size reduction. Hence, they are necessary machines for areas which need high quality and consistency in most industrial processes.
Parts of the Secondary Impact Crusher
1. Rotor Assembly
Most of the Secondary Impact Crushers have been made to possess a rotor assembly as a significant part, which generally comprises a heavy-duty shaft along with a rotating disc or drum fitted with blow bars or hammers. When these blow bars or hammers are in high speed rotation, they cause powerful forces of impact upon the material which crushes it and hence breaks into small fragments. The design and configuration of the crusher hold great importance for its performance and efficiency. In addition, the size and material of the impact tools will also be a factor. Appropriate maintenance and periodic inspection of the rotor assembly are required to ensure that operational integrity is preserved at the crusher while proper impact crushing performance is ensured.
2. Impact Curtains (Breaker Plates)
The impact curtains, with respect to a Secondary Impact Crusher, are located on the sides of the crushing chamber and help to guide the flow of material, hence aiding the process. These rigid plates absorb the impact forces developed by the rotating rotor and impact tools and further help reduce the material to desired sizes. Other function-the impact curtains serve as an additional crushing surface that ensures material is effectively crushed and fragmented in interaction with the rotor assembly. By design for adjustability, it allows the regulation of output material size and shape, hence giving the operator the ability to fine-tune the process of crushing in order to meet certain application requirements. The final product is of the same quality, with equal particle size. Impact curtains are supposed to be inspected and maintained frequently due to keeping up with crusher performance and assurance of smooth and efficient crushing operations.
Areas of Use of Secondary Impact Crusher
1. Aggregate Production
In most instances, Secondary Impact Crushers are used for aggregate production in the process of recycling crushed material into a finer texture for a variety of construction purposes. These crushers find their application in the aggregate industry for secondary crushing at stages subsequent to the primary stages for the attainment of product specifications that are required for construction activities. Especially, secondary impact crushers are very good for obtaining well-shaped aggregates and decreasing debris or flakiness in materials to meet specifications that are needed for construction. They play a very important role in producing quality materials used in construction, road construction, and concrete production. Therefore, the facility of the secondary impact crusher to produce finer product size gives it an important place in aggregate production and enhances the efficiency and productivity of material processing operations.
2. Recycling and Demolition Operations
Secondary Impact Crushers or Horizontal Shaft Impactors play a very vital role in recycling and demolition processes whereby the aim is to process and reuse materials coming from demolished structures or waste materials. These machines are versatile, used in breaking and recycling waste materials such as concrete and asphalt emanating from construction debris to smaller sizes acceptable for new construction projects or as recyclates. Secondary Impact Crushers add value to crushed waste by turning it into a valuable resource, enabling recycling to become more circular and reduce environmental impacts related to construction and demolition. These machines are a real asset at recycling and demolition sites for the following reasons: their effectiveness in the production of finely crushed materials and versatility in recycle applications help in effective management and utilization of the material recycled for a sustainable future.
Principle of Operation of Secondary Impact Crusher
A secondary impact crusher works on the principle of a horizontal shaft rotating in a direction perpendicular to incoming feed material. It is fitted with impact tools such as hammers or blow bars along the horizontal shaft. Due to the high-speed rotor with impact tools, at some critical point, there occurs interference between the impact tools and feed material rushing inside, through which immense impact forces are created, splitting the material into fragments. Material is fed from an inlet at the top of the crushing chamber onto the turning rotor. This action of impacts effectively fulfills the reduction ratio for finer products, either for further crushing or as a final product in several industrial applications. Secondary Impact Crushers are designed for high velocity impact to substantially reduce the size of material with a minimum loss of power resulting in maximum size reduction and high production of quality end product with a uniform particle-size and shape.
In secondary impact crushers, the output size and shape control is generally done by adjustment of the gap between the rotor and the impact tools. This adjustability feature in the crusher enables the operator to fine-tune the crusher for meeting particular requirements of various applications and to customize the end product. The versatility and effectiveness of the Secondary Impact Crusher lie in the wide circle of work ability, making them so valuable in industries that require finer product sizes and uniform particle shapes. In general, Secondary Impact Crushers are very helpful in producing quality end products through effective material crushing with powerful impact forces, hence contributing to enhanced material processing efficiency and consistency across various industrial sectors.
