At present, the development of China's crusher industry has been quite mature. However, due to the growth of market demand, various crushing equipment with different models and functions will appear one after another, such as jaw crusher, impact crusher, hammer crusher, sand making machine, etc.
A jaw crusher is known as a jaw crusher, also known as a stone crusher. It is considered to be the best equipment for crushing large materials. Jaw crusher is the most commonly used equipment in the production of mineral processing plant or stone crushing plant, and it has the advantages of low cost and high efficiency compared with other crushers.
Impact crusher is also an abbreviation for impact crusher. It is widely used in hydropower, highway, artificial sand and gravel, gravel and other industries. It can handle all kinds of coarse, medium and fine with a side length of no more than 500mm and a compressive strength of no more than 350MPa. The following differences between materials (granite, limestone, concrete and counter-attack):
1. From the characteristics of crushers: electronic crushers are mainly used as coarse crushers and medium-sized crushers in mining, building materials, infrastructure and other sectors. According to the width of the inlet, it is divided into three types: large, medium and small. FOR LARGE MACHINES, THE INLET WIDTH IS GREATER THAN 600MM. THE WIDTH OF THE INLET FOR MEDIUM-SIZED MACHINES IS 300-600MM. The width of the inlet of the small machine is less than 300mm. Machine. The jaw crusher has a simple structure, easy manufacturing, reliable work and convenient maintenance. Counterattack is a new type of high-efficiency crushing equipment, which has the characteristics of small size, simple structure, large crushing ratio (up to 40), low energy consumption, large production capacity, uniform product size and selective crushing. The role of minerals is a promising equipment for crushing stone.
2. From the perspective of the working principle of the crusher: the E-type crusher has a variety of structural forms, and the working principle is roughly the same, that is, the material is crushed through the periodic movement of the movable jaw. A breaker is a crusher that uses impact energy to crush materials. That is, driven by an electric motor, the rotor rotates at high speed, and when the material enters the area of action of the hammer, it collides with the hammer on the rotor, and then is thrown to the counter-attack device to break again, and then bounces back from the anti-support plate back to the plate. Re-hit the hammering action area, and adjust the gap between the impact frame and the rotor to achieve the purpose of changing the material discharge particle size and material shape.
3. From the perspective of the application range of crusher: jaw crusher is mainly used in metallurgy, mining, chemical industry, cement, construction, refractory materials and ceramics and other industrial sectors to carry out medium and fine crushing of various medium and hard ores and rocks. Various materials with a crush strength of up to 320 MPa. The material with a length of 100-500mm or less, a compressive strength of up to 350MPa, and a large crushing rate is reversed, and the crushed material is cubic particles. At present, due to the emergence of certain wear-resistant materials, they have been applied to some metal concentrators.
It can be seen that there are still many differences between jaw crusher and impact crusher, and their role in the ore crushing process is not the same. For example, due to the relatively large diameter of the jaw crusher, large stones can be crushed into smaller stones, and then the impact crusher can be processed into smaller sizes to fit different buildings. Construction requirements. Typically, a crusher is used to crush the stone first, and then the stone is broken again by a counteroffensive. They belong to the type of devices that match each other. The jaw crusher breaks through at the front, and the impact crusher breaks through at the rear. Although they are both crushers, they serve different purposes. The combination of the two is usually used in stone production lines or sand production lines. Basically both are essential. Jaw crusher is the main crushing equipment that is indispensable for the first layer crushing in stone production line, milling production line and gravel production line. The range of use is wider than that of impact crusher. However, the processing characteristics and functions of the impact crusher are irreplaceable.