Crusher is the main equipment for mining. Many minerals need to be crushed before subsequent processing, and it is necessary to select the appropriate crusher model. Crusher plays an important role as the starting link of many production lines. With the large-scale infrastructure construction in full swing in recent years, the demand has gradually increased.

crusher

There are many types of crushers. According to the crushing needs of different users, different types of crushers can be selected for production. Commonly used crusher equipment are: jaw crusher, cone crusher, impact crusher,hammer crusher, etc., which can complete crushing tasks with different requirements. The choice of crusher model mainly depends on the nature of the material and production Require.

Jaw Crusher:

① Introduction of jaw crusher

Jaw crusher is commonly known as jaw crusher, also known as tiger mouth. The crushing chamber is composed of two jaw plates, the movable jaw and the static jaw, and the crusher completes the material crushing operation by simulating the movement of the two jaws of animals. It is widely used in the crushing of various ores and bulk materials in mining and smelting, building materials, highways, railways, water conservancy and chemical industries. The maximum compressive strength of the crushed material is 320Mpa.

Jaw Crusher

② Working principle of jaw crusher

The working part of the jaw crusher is two jaw plates, one is the fixed jaw plate (fixed jaw), which is fixed on the front wall of the body vertically (or the upper end is slightly inclined outward), and the other is the movable jaw plate (moving jaw). It is inclined to form a crushing cavity (working cavity) with a large upper and a lower small with the fixed jaw. The movable jaw makes periodic reciprocating motion against the fixed jaw, sometimes separating and sometimes approaching. When separating, the material enters the crushing cavity, and the finished product is discharged from the lower part; when approaching, the material installed between the two jaw plates is crushed by extrusion, bending and splitting.

Working principle of jaw crusher

③ Features of jaw crusher

(1)Low noise and less dust.

(2)The crushing ratio is large, and the product particle size is uniform.

(3)Simple structure, reliable work and low operating cost.

(4)The lubrication system is safe and reliable, the components are easily replaced, and the equipment maintenance is simple.

(5)The crushing cavity is deep and has no dead zone, which improves the feeding capacity and output.

(6)Equipment energy saving: single machine saves 15% to 30%, and the system saves more than double.

(7)The adjustment range of the discharge port is large, which can meet the requirements of different users.

Working principle of jaw crusher

Cone Crusher

Introduction of cone crusher

Cone crusher is a crushing machine suitable for raw materials in metallurgy, construction, road construction, chemical and silicate industries. According to different crushing principles and product particle size, it is divided into many models. Crusher is widely used in mining, smelting, building materials, highways, railways, water conservancy and chemical industries and many other sectors. The cone crusher has large crushing ratio, high efficiency, low energy consumption, and uniform product particle size. It is suitable for medium and fine crushing of various ores and rocks.

Cone Crusher

 Working principle of cone crusher

It is mainly composed of driving part, horizontal shaft part, eccentric sleeve part, crushing cone part, upper frame, lower frame body, lubrication system, etc. When working, it adopts the principle of lamination crusher, which has low energy consumption and wear resistance. The electric motor drives the eccentric sleeve to rotate through the transmission device, the moving cone rotates and oscillates under the force of the eccentric sleeve, and the section where the moving cone is close to the static cone becomes the crushing cavity, and the material is crushed by the cone crusher and the static cone. Broken by repeated squeezing and impact.

Working principle of cone crusher

③ Features and advantages of cone crusher

(1)High crushing efficiency: the crushing cavity type is optional, the discharge particle size is fine, and it is used more in beneficiation.

(2)Strong wear resistance: In the crushing practice of high hardness stone, the wear parts of the cone crusher can be used for several months.

(3)High hardness of crushed materials: mainly crush some materials with high hardness, such as granite, basalt, tuff, river pebbles, etc.

(4)High-power motor: 0.5~1.0 times larger than the power of other types of crushers of the same specification, and the crushing production capacity is strong.

(5)The discharge port can be adjusted by yourself: the size of the discharge can be automatically adjusted, the operation is convenient, the reliability is strong, and it can meet the requirements of different users for material particle size.

Structure of Symons cone crusher

Impact Crusher

Introduction of impact crusher

The impact crusher can process all kinds of coarse, medium and fine materials (granite, limestone, concrete, etc.) whose side length does not exceed 500mm and compressive strength does not exceed 350MPa, and is widely used in various ore crushing, railways, highways and construction industries. Production of artificial sand and gravel.

Impact Crusher

Working principle of impact crusher

Impact crusher is a crushing machine that uses impact energy to crush materials. When the machine is working, driven by the motor, the rotor rotates at a high speed. When the material enters the action area of ​​the blow bar, it collides with the blow bar on the rotor and breaks, and then is thrown to the counterattack device to be broken again, and then bounces off the counterattack liner. Return to the action area of ​​the blow hammer to be broken again. This process is repeated. The material enters the first, second and third counterattack chambers from large to small for repeated crushing until the material is broken to the required particle size and discharged from the discharge port.

Working principle of an impact crusher

③ Performance advantages of impact crusher

(1)Uniform particle size and large production volume

Using the principle of rock-on-rock crushing, the rock is crushed along the fragile surfaces such as joints and bedding, and the crushed materials are cubes with uniform particle size. The content of needle flakes is extremely low, the phenomenon of over-grinding is small, the consumption is low, and the production volume is large.

(2)Wide range of materials and high crushing efficiency

It has the characteristics of selective crushing and a variety of crushing methods to meet the crushing needs of different materials. It has strong ability to pass non-crushing materials, is less affected by the moisture content of materials, and has high crushing efficiency.

(3)Advanced structure, reliable operation, energy saving and environmental protection

The structure of the machine is simple, which simplifies the production process and reduces capital investment. It can realize automatic control and accident alarm, easy operation and high reliability. The airflow inside the vortex chamber is self-circulating, with little dust pollution and low working noise, meeting the national environmental protection requirements.

impact-crusher-1

Hammer Crusher

Introduction of Hammer Crusher

Hammer crusher is a kind of equipment for crushing materials in the form of impact, which is divided into two forms: single rotor and double rotor. It is a one-stage crusher that directly crushes materials with a maximum particle size of 600-1800 mm to below 25 or 25 mm. Hammer crusher is suitable for crushing medium hardness materials, such as limestone, slag, coke, coal and other materials in the cement, chemical, electric power, metallurgy and other industrial sectors for medium and fine crushing operations.

Hammer Crusher

Working principle of hammer crusher

Hammer crushers mainly rely on impact energy to complete the operation of crushing materials. When the hammer crusher is working, the motor drives the rotor to rotate at a high speed, and the material enters the crusher cavity evenly. The high-speed rotating hammer head rushes to the baffle plate and sieve bar in the frame, and the material larger than the sieve hole size is blocked on the sieve plate and continues to be hit and ground by the hammer until it is crushed to the required discharge particle size and finally discharged out of the machine through the sieve plate .

Working principle of hammer crusher

Performance characteristics of hammer crusher

(1) The working hammer head is cast by new technology, which is wear-resistant and impact-resistant.

(2)According to customer requirements, adjust the required granularity.

(3) The structure of the hammer crusher is sealed, which solves the problem of dust pollution and ash leakage in the crushing workshop.

(4)The overall design has the advantages of beautiful appearance, compact structure, few wearing parts, and convenient maintenance. It is an upgraded product.

(5)Compact structure, beautiful appearance, good wear resistance and easy maintenance.

Hammer crusher structure

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