Many Types Of Crusher And Their Operation
Continuous equipment for crushing rocks and minerals of different hardness levels. The main difference from the jaw is that they don't have inactive. Once the pieces of material of different fractions re-enter the crusher, they are squeezed between two movable half-bodies, cone and fixed basket. This construction is rational for crushing the ore of ferrous and non-ferrous metals, so it is in this area such aggregates found the most widespread. Let's talk about the structure, principle and characteristics of working cone crushers.
Currently, the cone crusher can be divided into large (CCD), medium (DSC) and fine crushing (KMD) devices. CRDs are characterized in that chunks of rock are capable of accepting 400 to 1200 mm at 75-300 mm outlet slot. Provision of such a unit is 150-2300 m 3/h. Sometimes the only cone crusher that can handle the tasks. Why so, you learn a little later.
There are many casting employees have gone through a deep experiment and also have actually shared their experience concerning the variables that have a result on the crusher wear parts cover life. The crusher component that is pointed out right here is just everything about the spreading wear parts such as Alloy Steel Foundry components and manganese casting components such as roll mill lining, cone lining, jaw plate, and more.
CCR are formed of the cone of 600-900mm, and can process the ore pieces of 60 to 300mm, and the outlet to provide a fraction of 12-60mm. Performance of such units - not less than 12 and not more than 580 m 3/h.
If we talk about the CMD, the receiver is designed for pieces at 35-100 mm, and the output can get the elements of 3-15 mm. Performance of such mills - 12-220 m 3/h. If we consider the principle of operation of unity in a nutshell, then we have something similar. Cone performs the rotation movement. Pressing against one side of the stationary bowl, it crushes the mineral, and when moving away in the opposite direction, the fraction falls into the outlet slot. Then the cycle repeats itself.
From the name it can be understood that in a cylindrical roller it serves as a working body. Material fed to the crushing of the boot from above the device and then falling between the rollers and is subjected to grinding.
Such crushers are classified according to the number of rolls. There are 1, 2 and 4 roller sets. It is worth noting that two dvuvalkovye mounted crusher in the latter case, which are located on top of each other. The surface of the working body can be corrugated, smooth or toothed. In some cases, use different combinations. For example, one roller is smooth, and the second - toothed or corrugated. This is done to improve the crushing ore and obtain a desired fraction.
Rubble crushing equipment
Currently rubble crusher may have some design features.The essence of this work lies in the fact that the material falls between two cheeks (swing plates) and ground. By adjusting the distance, it is possible to receive various gravel fraction. When needed the material of medium and small cuboid shape, cone crushers are used (CMD) for the crushed stone. This solution is more common in the construction industry. Don't forget the roll crusher. They can be used to receive crushed stone fines.
Advantages of cone crushers
There are many pros of cone crushers, which necessarily need to be mentioned. Since the shape of the crushing surface does not form a regular cone, then in different phases and areas of crushing force it can vary significantly. But this forced action, which it managed to achieve by changing the angle of the cone of its height, requires technology.
In recent years, cone crusher has improved slightly. innovators had one distinctive designs they make - unbalanced type vibrators. The latter provide an additional moving cone vibration, which makes crushing quality. Also, the benefits of CDs should include performance. It plays an important role, and the continuity of the process, and the ability to run from the rubble, which is filled with movable cone.
Jaw crusher: operating principles and advantages
The essence of fragmentation in this unit is that the rock or mineral is compressed between the cheeks, that is, working organs. One cheek is fixed and rigidly fixed, the second performs an oscillating movement from a connecting rod. These crushers are classified in the same way as the cone, and there are large, medium and fine crushers. size fractions of the outlet slot depends on the size of the outlet which can be adjusted by mechanical or hydraulic drive.
The working chamber is wedge-shaped, and there is no crushing of the ore. Material is loaded, crushed and gravity falls towards the discharge port.
Currently used different types of jaws, which are different from each other swinging cheek trajectory. divide them into simple and complex. The latter differ more efficient crushing rocks and minerals. But attention should be paid to the fact that it is extremely important to observe the optimum moisture content of the material. Thus, RMA crusher can work with the ore, the amount of moisture in which - no more than 6-8%. If the index increases by even a small percentage, the performance drops to a couple of times.