Mining crushing machinery has been widely used in more and more industries. There are many kinds of crushing equipment used in the industry, and there are many kinds of classification methods. According to the working principle and structural characteristics, it is divided into: jaw crusher, cone crusher, roller crusher and impact crusher. In addition, there are special types of crushers.
Before
The HP type cone crusher crushes materials by the principle of lamination crushing and realizes selective crushing. The advantage of selective crushing is that the material is crushed along the defects of the crystal surface, which not only saves energy consumption, but also has good product particle size characteristics, reduces over-crushing, and meets the requirements of more crushing and less
The development of the new crusher focuses on the development of the crushing cavity of the medium and fine crusher, so that the particle size of the crushed product can reach 10~0mm. Currently there are mainly:
1) New single-cylinder hydraulic cone crusher According to the crushing cavity, it is divided into two types: standard type and short head type. According to the size of the crushed produ
Reducing the particle size of crushed products is one of the effective ways to reduce energy consumption in concentrators. Dong’anshan Concentrator’s incoming grinding ore particle size is reduced from 20-0mm to 12-0mm, which increases the processing capacity of the ball mill by more than 16%. Dashihe Concentrator’s ore particle size decreased from 15~0mm to 12~0mm. The processin
What are the natural types of iron ore Types of iron ore can be divided into two categories: natural type and industrial type. The natural type is the mineral combination of ore cold bar divided according to the material composition, structure and structure of the ore; the industrial type is the type of ore divided according to the different ore beneficiation, smelting methods and technological pr
When the hydraulic cylinder is lifted by pressure, the shaft pin is first cut off, and the crusher stops running, so as to prevent other parts of the machine from being damaged. The weakened section shaft pin on the pulley is the safety device of the gyratory crusher. When large pieces of non-broken material enter the crushing cavity, the large bevel gear with three thrust discs fixed on the eccen
The advantages of jaw crusher are: simple structure, small height, small mass, convenient maintenance, not easy to block, reliable work, but low production capacity. It requires uniform feeding, and needs to be equipped with a feeder, and the product particle size is uneven.
Compared with the jaw crusher, the advantages of the gyratory crusher are: the depth of the crushing cavity is large, the w
In the process of crushing ore by the jaw crusher, the materials added to the crushing cavity of the jaw crusher (the cavity composed of the fixed jaw plate and the movable jaw plate), due to the periodic reciprocating swing of the movable jaw plate, when the movable jaw plate When approaching the fixed jaw, the material is crushed, split and bent and broken. When the movable jaw plate leaves the
The jaw crusher (also known as the tiger mouth) appeared in 1858 and was first widely used in road construction and later in mines. Due to the simple structure and reliable operation of this crushing wind, it is still widely used. It is suitable for crushing hard and medium-hard materials. In the concentrator, it is mostly used as primary and secondary crushing equipment.
There are many types of
Among these five crushing methods, impact crushing has the best effect, and grinding and peeling crushing has the worst effect because the force acts on the surface of the ore. Among the other three crushing methods, pressure crushing requires a large amount of pressure and consumes more energy due to the large contact area between the ore and the crushing face. Splitting is due to the concentrati
Crushing is a process in which bulk materials become smaller in size under the action of mechanical force, and is an important link in beneficiation production. In the crushing process, the force of the crushing equipment is: when crushing the ore, in order to overcome the cohesive force of the ore, an external force must be applied. For the crushing of ore, at present, it mainly relies on the act
Crushing and screening is a necessary preparatory operation in the early stage of the beneficiation process, and has a great impact on the technical and economic indicators of grinding and beneficiation operations. Due to the differences in mining methods, transportation conditions and the size of the concentrator, the particle size of the raw materials sent to the concentrator is also different.
lubricating 1) Regular attention and timely lubrication of the friction surface can ensure the normal operation of the machine and prolong its service life 2) The grease used in this machine should be determined according to the location and climatic conditions. Generally, calcium-based, sodium-based and calcium-sodium-based greases are used. 3) The grease added to the bearing seat is about 50% o
When selecting a desulfurization process, the initial investment and operating cost of the desulfurization process should be calculated and compared in detail, and the desulfurization process with low initial investment and low operating cost should be optimized and selected, so that the trapezoid of the desulfurization facility can be increased as little as possible.
The operation of the desulfu