In the sand and gravel aggregate production line, coarse crushing is often an indispensable link. This link is to process the rock materials mined by blasting through a coarse crusher, and process the materials into semi-finished products with smaller particle size, which are then processed by conveyors, screens Extension, medium crushing equipment, fine crushing equipment, etc. are processed, and finally produced into various types of sand and gravel aggregates. It can be said that coarse crushing is the primary link in the production of sand and gravel aggregates. The quality of the coarse crushing link directly affects the subsequent production, so the selection of coarse crushing equipment is very important.
In the selection of coarse crushing equipment, it is generally necessary to consider the types of materials to be processed. The hardness and abrasiveness of different rock materials are different. In addition, factors such as production line capacity and production planning must be considered.
At present, the equipment used for primary crushing mainly includes Gyratory Crusher, impact crusher and jaw crusher.
Gyratory Crusher
Gyratory crusher is a large-scale mechanical equipment. Its crushing form is continuous crushing, with high efficiency, large production capacity and large crushing ratio. It is generally used in large-scale sand and gravel aggregate production lines with an annual output of more than one million tons. Ideal equipment for higher materials. Gyratory crushers are generally more expensive and require a longer period from customization to delivery and installation, so they are suitable for large-scale production projects with long-term planning.
Impact Crusher
The impact crusher is generally used in the secondary crushing process, and in some cases, it can also be used in the primary crushing process. But the scope of application is narrow.
Impact Crusher
Jaw crusher is called "Tiger's Mouth" because of its powerful crushing ability. Compared with gyratory crusher, the cost is lower, and it also has the advantages of large output, easy configuration, convenient maintenance and so on. It is the same as gyratory crusher. , The jaw crusher is also very suitable for crushing materials with high hardness and strong abrasiveness, and the customized production time of the jaw crusher is shorter, and it is more convenient to move than the gyratory crusher.
Jaw Crusher
The jaw crusher is very popular among customers because of its superior performance. Since its invention, it has been used in many fields such as mining, building materials, highways, railways, and water conservancy construction. It is currently the most widely used coarse crushing equipment.
Jaw crusher consists of six parts, namely frame, transmission part (motor, flywheel, pulley, eccentric shaft), crushing part (moving jaw, moving jaw plate, fixed jaw plate), safety device (toggle plate, spring) tie rod part), adjustment part, lubricating device.
jaw crusher structure
Its working principle is: the motor drives the belt and pulley, and the movable jaw is oscillated in a complex manner through the eccentric shaft. When the movable jaw plate approaches the fixed jaw plate, the material is crushed or split to achieve the purpose of crushing; when the movable jaw plate is in the Under the action of the pull rod and spring, when it is far away from the fixed jaw plate, the crushed materials are discharged from the lower opening of the crushing cavity. With the continuous rotation of the motor, the crushing jaws do periodic motions to crush and discharge materials to achieve mass production.
At present, there are many types of jaw crushers on the market, and the differences are large. As far as the frame is concerned, there are mainly three types: cast steel frame, welded frame, and bolted frame. The cast steel frame is relatively bulky. Welded frames carry the risk of stress concentration, while bolted frames avoid various disadvantages, being light and dismantling without the risk of stress concentration.
The CJ series jaw crusher produced by Bellian Machine is the bolted frame. The advanced technology used by this machine is more than that. It can be said that it integrates various advantages. Let us approach it together.
Bellian Machines CJ Series Jaw Crusher
CJ jaw crusher has strong feeding ability
This "Tiger Mouth" is a deep V-shaped crushing cavity, which is a non-blocking structure, so that the "Tiger Mouth" can eat more each time. Once it enters the "tiger's mouth", it will be firmly bitten, and it is difficult for the smooth material to escape.
Deep V-shaped crushing cavity
CJ jaw crusher has large crushing ratio and high output
The effective crushing area is large, the material starts the crushing process at the upper part of the crushing cavity, and the unique design enables a small eccentricity to obtain a larger crushing stroke, and the production capacity is improved.
CJ jaw crusher is suitable for a wide range of production scenarios
It can be used in all kinds of fixed production lines and mobile production lines. Due to the advanced bolting frame technology, each component is easy to disassemble and transport, so it can be seen in many places where there are mines. Can go down the mine, the adaptability is so strong.
The design of CJ jaw crusher is more integrated
The motor and the crusher are designed in one piece, the overall volume is small, and the working space is saved. The motor frame is connected to the rear of the crusher by bolts, and the two machines move synchronously, which can improve the use of the V-belt, thereby saving the cost of use for customers.
Integrated design of motor and crusher
Of course, there are many unique designs of CJ Jaw Crusher in other aspects, such as the well-designed flywheel counterweight system, wider adjustment range of the discharge opening, and high-strength steel plate brackets...
flywheel weight system
As the "big brother" in crushing production, jaw crusher is almost indispensable to the participation of jaw crusher, whether it is mineral processing production line or sand and gravel production line. However, it can fully meet the production and use of customers under different conditions.
