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How to select the crusher



2020-08-08 03:57:54 1048

When users choose a crusher, they are often confused and do not know how to choose many crushing machinery. This article will introduce the crushing machinery in detail to help everyone better understand the various crushers.

Sand and gravel crushing production line site

Classification and scope of application of crushers
(1) Methods of material crushing
Although there are many types of crushing machinery However, according to the different methods of applying force, there are methods such as squeezing, bending, impact shearing and grinding to crush the material. In the crushing machinery, the force application is very complicated, and several types of force exist at the same time, of course, in a certain crushing machine. There are also one or two main forces in machinery. Because the shape of the material particles is irregular and the physical properties of the material are different, the crushing methods used are also different. There are several methods for using mechanical force to crush materials according to the external force applied. .

The stone crushing production line of Gold Mine users is on site, the hammer crusher is shaped by one hammer and is powerful.

1 Crushing

Place the material between two working surfaces. After applying pressure, the material will be broken due to the compressive stress reaching its compressive strength. This method is generally suitable for crushing large pieces of material.

2 Splitting

The material is placed between a plane and a working plane with sharp edges. When the working plane with sharp edges squeezes the material, the material will split along the direction of the pressure line of action. Splitting. The reason for splitting is that the tensile stress on the splitting plane reaches or exceeds the tensile strength limit of the material. The tensile strength limit of the material is much smaller than the compressive strength limit.


The material is broken under the action of bending stress. The two-pivot beam or multi-pivot beam that bears the concentrated load of the crushed material is broken and broken when the bending stress of the material reaches the bending strength of the material .

Gold Mine stone crushing into sand production line site, multiple pairs of roller crushers combined operation, powerful

4 impact crushing

The material is crushed by the impact force, and its crushing force acts instantaneously. Its crushing efficiency is high and the crushing ratio is large. The energy consumption is small. Impact crushing has the following situations:

(1) Movement work The impact of the body on the material

(2) The high-speed moving material impacts on the fixed working surface

(3) Tells the moving material to impact each other

(4) The high-speed moving work body impacts the suspended material.

5 Grinding (grinding)

There is a certain amount of pressure between the material and the moving work surface. After the shearing force is applied, when the shearing stress reaches the limit of the shear strength of the material, the material will be crushed or the material will be crushed by the shearing and grinding action when the materials are rubbed against each other.

Gold Mine user sand production line site

( 2) Classification of crushers

According to different structures and working principles, crushers can be divided into the following types

(1) Jaw crusher (jaw crusher) is Relying on the periodic reciprocating movement of the movable jaws, the materials entering between the two jaws are crushed.

(2) Hammer crusher (hammer crushing) The materials are impacted by the high-speed rotating hammer. And the material itself impacts the fixed liner at a high speed to crush the material.

(3) The cone crusher (cone crusher) relies on the eccentric rotation of the inner cone, so that the material between the two cones is bent And crushing.

(4) Impact crusher (counter-attack breaking) The material is hit by the high-speed moving hammer, causing the material to hit the impact board at high speed, and the materials collide with each other. Crushing.

(5) Roll crusher (roll crushing) The material falls between two parallel and oppositely rotating rollers (rotating towards each other). The material is under the action of friction on the surface of the rollers. It is pulled between the rollers and crushed by the squeezing of the rollers.

Commonly used crushers collection

(6) Mobile crushers (Mobile breaker) is a new type of equipment in crushing machinery, equipped with tires or crawler-type mobile chassis, which is more intelligent, high-yield, energy-saving and environmentally friendly, and can realize mobile production, which is very economical and easy to use, high-yield and environmentally friendly.

The mobile crusher is more mobile and flexible, and the gravel production is more productive and environmentally friendly.

The sand and gravel crushing and sand making production line is currently a relatively hot investment project. There are many commonly used crushing equipment, due to limited space I wont list them one by one here. For example, the commonly used crushers and the fine crushing machine-made sand machine composite crushing single-stage crusher and so on.

Another point worth noting is the crushing ratio and unit power consumption. (Energy consumption per unit mass of crushed products) is the basic technical and economic index of the crushing machinery. The unit power consumption is used to identify whether the power consumption of the crushing machinery is economical, and the crushing ratio is used to describe the characteristics of the crushing process and identify the crushing quality. Two crushers Even if the unit power consumption of the machine is the same, but the crushing ratio is different, the economic effect of the two crushing machines is still different. Generally speaking, the machine with a large crushing ratio has higher working efficiency. Therefore, it is necessary to identify the working efficiency of the crushing machine. The unit power consumption and crushing ratio should be considered at the same time.

Henan Gold Mine is a 40-year-old manufacturer and more reliable

Henan Gold Mine is A large manufacturer specializing in the production and sales of crushing machinery, with more than 40 years of experience, strong strength and rich experience, interested in the sand and gravel crushing industry, users who want to invest in crushing machinery can consult Henan Gold Mine for free, and there will be professional technical personnel online in real time at your service.