The crushing equipment mainly includes jaw crusher, cone crusher, rotary crusher, hammer crusher, roller crusher, counterattack crusher, impact crusher, etc.It belongs to the category of construction machinery.Common features: Basic construction machinery for crushing in industries such as original material construction.Let me introduce it in detail below!
What is the development of the broken equipment industry
Chinas crushing powder grinding equipment industry has fully developed into a fierce competitive industry.According to relevant data, as of the end of 2010, there were 431 crushed powder milling equipment companies above designated size. After the rapid development stage and fierce market competition, the basic pattern was initially formed.At the same time, China has also accumulated problems such as weak independent innovation capabilities, weak self -innovation capabilities, high existence of basic parts, relatively backward market development capabilities in the development of basic parts and components in the development process.Enterprises in the industry are mainly concentrated in the low -end product market, leading to fierce market competition in the field, but the high -end product market is basically monopolized by foreign -funded enterprises. The unreasonable industry structure has greatly hindered the industry itself and the development of the enterprise.effect.
What is the scope of application of broken equipment
The jaw crusher and cone crusher are suitable for crushing and very hard rock stones (the pressure resistance is 150-250MPa); the rotary crusher is suitable for crushing and hardness (more than 100MPa) and medium hardness (pressure resistance in the pressure of pressure)Rock stones with about 100MPa).The hammer crusher is suitable for crushing and medium -hard crispy rocks (with limit pressure resistance below 100MPa); roller crusher is suitable for crushing and medium -hard tough rocks (the limit pressure resistance is about 70MPa).
In actual selection, the following factors should also be considered according to the specific situation:
1. The physical properties of materials, such as fragmentation, viscosity, water sediment content, and maximum materials for materials.
2. The total production and level requirements of the finished product are based on the type and production capacity of the crushing machine.
3. Technical and economic indicators, which are both quality, quantity requirements, convenient operation, reliable work, and maximum cost savings.
What is the mechanism of crushing
Material crushing is a necessary process for brick and tile production.The fuels and raw materials used to produce bricks and tiles, such as coal, clay, coal gangs, shale and impurities (ingredients), etc., appear in different sizes of blocks of different sizes.According to production requirements, most of them need to be broken.Broken is the process of relying on external forces (mainly mechanical forces) to overcome the internal force of solid materials and split its large pieces into small pieces.The raw materials used in the production of brick and tile products can be divided into three levels according to the requirements of the material blocks after the treatment of the material.After the processing of the material block is more than 70 %of 3 mm ~ 40 mm; crushing: The amount of material block after treatment <3 mm accounts for more than 70 %.
During the processing process, the material is broken and smashed at a certain degree of crushing.The maximum diameter ratio of materials before and after crushing is called a broken ratio.Various solid materials have the mechanical strength of certain external forces.According to the properties of external forces, the mechanical strength can be divided into pressure resistance, folding strength, and tensile strength.When crushing, the exerted force is broken when the mechanical strength of the material exceeds the limit of the material.Under normal circumstances, the greater the mechanical strength of the ore, the more difficult it is to break, and the greater the power consumed.Pus hardness coefficient is usually used to evaluate the strength of the ore.For the mechanical strength and internal structural characteristics of various materials, mechanical crushing methods such as squeezing, splitting, breaking, grinding, and crushing can be used to break the material.The combination of various crushing methods has greatly improved the broken effect and production efficiency.

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