As one of the very important crushing equipment, impact crusher is a pretty old machine with many years of history. Its development in China also has decades and its introduction is many years of earlier than that of Barmac sand maker. In the beginning, since we did not have the technology of producing sand maker, we often used impact crusher for processing coarse sand, thus making it the machine king at that time.
Currently, influenced by many new types of crushing equipment, the sales of the industrial impact crusher suffer significant influence. The introduction of vertical shaft impact crusher completely replaces the original sand making methods since it highly-efficiently uses the crushing principle of stone impacting stone and iron impacting iron, and significantly improves the production efficiency. The fineness range of the sand produced is ensured so that it becomes the most competitive sand making machine. For this reason, the impact crusher does not have advantages in the application of sand making, and it can only be used in second crushing at most.
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mineral impact crusher:http://www.hxjq-crusher.com/2.html
However, impact crusher is still a hot selling product since when it is used for producing stone materials, only a small amount of needle materials are produced. But this materials produced by cone crusher are a lot. Highway has high standard requirement for stone materials which are different from common stone materials, so impact crusher is often used as the specified stone material production equipment for highway.
Town construction as the cone crusher industry jobreduce the minimum to maximize the benefits through research, without considering the mill before crushing and grinding process in two ways: open flow and closed circuit.Under the same conditions, the ring abortion than to open stream about 20-35%.Circle flow products, the particle size distribution is more evenly adjust the cement grade is also more convenient; open stream mill grinding materials that is finished, the particle composition of the product distribution is more dispersed, there is over-grinding phenomenon,block machine affecting the quality and quantity of cement.Open flow of grinding cement particle size distribution uniformity coefficient is generally 0.8-0.9, and some are even lower, only 0.7, its particle size distribution is very wide,Rotary dryer 3d strength of the cement may be higher, but later the strength and hydration rates are low, change uniformity coefficient, and the quality of cement is also more difficult.
Consequently, the function of the impact crusher is gradually positioned as equipment for producing building materials and second crushing. However, the impact crusher also suffers the impact of fine jaw crusher and cone crusher. The fine jaw crusher does not have great impact on this machine, but the impact of cone crusher can never neglected. Cone crusher was only used mining crusher, but now it also has wide application in sand and stone crushing. The hydraulic cone crusher is stable in operation and high in production capacity, and it has hydraulic protection and cabin cleaning device, so that it is really a powerful opponent of impact crusher.
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