What are the Characteristics of Mine Crushers in Mining?
Mine crusher plays a particularly important role as a weapon for mining. The mining is broken into particle size forming, which requires coarse crushing and crushing, medium crusher and fine crusher. Then every product is filled in the whole production process. What role can be achieved, what is the working principle and characteristics of each type of broken?
1. Jaw crusher
As the first break of the entire production line, the jaw crusher plays a very important job. When the jaw crusher is working, the movable jaws periodically reciprocate the fixed jaws, sometimes close and sometimes leave. When approaching, the material is crushed by crushing, splitting, and impact between the two jaws; when leaving, the material that has been broken is discharged from the discharge port by gravity. It is widely used in medium-sized crushing of various ores and bulk materials in industries such as mining, smelting, building materials, roads, railways, water conservancy and chemical industry. The crushed material has a compressive strength of 320MPa.
2. Impact crusher
The impact crusher is used in the secondary crushing operation in the production line. It is high-efficiency crushing equipment. The specific feed port is large, the feed size is large, heavy-duty rotor structure has no high crushing efficiency, large capacity, low energy consumption, and operation. Simple, easy to maintain, but the disadvantage is that the hammer and impact are particularly prone to wear, especially broken or hard ore, which is more worn and needs frequent replacement. Due to the emergence of some wear-resistant materials, it has been applied in some metal concentrators.
3. Cone crusher
The shortage of cone crusher as a fine crushing device is a contradiction between production and fineness. In the pursuit of smaller crushing fineness, the eccentricity of the cone crusher and the discharge port must be reduced, which will greatly reduce the production capacity of the cone crusher. Therefore, the cone crusher is used as a fine crusher for mining, and the crushing particle size is not fine enough, which has a certain influence on the dry separation of lean ore in China. However, the stability of the cone crusher makes it widely used in secondary crushing in mines.
4. High efficiency fine crusher
The principle and recommendations of the high-efficiency fine crusher are the same. They all use the hammer to strike the material for the crushing operation. "However, the structure of the high-efficiency fine crusher has been greatly improved. The hammer head adopts a combined structure, which is convenient for replacing the hammer head, and the bottom sieve plate adopts a cast structure, so that the sieve plate has a certain wear function. The overall structure is more strengthened, and the production capacity is enhanced. With a great improvement, the single machine production capacity is less than 100T/H, which can stabilize the fine crushing production. When the single machine production capacity exceeds 100 T/H, some problems of hammer crushing will gradually appear. For example: blockage problem, wear problem or replace the wear parts with too much work.
5. Vertical impact crusher
The vertical impact crusher is the representative equipment for sand making. Using the working principle of “stone best stone” and “stone beat iron”, the material is crushed and broken in the crushing chamber several times to make the material full and distinct. Meet the sand effect of buildings, roads and railways. Ultra-fine crusher is a wide-ranging fine-grain crusher with good fine crushing effect on various high hardness, high wear and high viscosity materials. The vertical impact crusher not only greatly reduces the wear cost, is easy to maintain and maintain, but also makes it easy to achieve millimeter-scale fine crushing. However, the vertical impact crusher has a small particle size, so that materials below 50mm can enter the vertical impact crusher for fine crushing operation, which limits the application range to a certain extent. If the crushing line can be optimized, the vertical impact crusher can achieve economical production efficiency.