Crushing system is the core system of the whole sand aggregate production line, and as the key equipment of crushing system, crusher plays an extremely important role in the product quality and stable operation of the whole production line.
At present, the sand aggregate production line often adopts the method of graded production and a variety of crusher combination in order to achieve the best effect.
Production scale, financial status, maintenance and overhaul amount, product performance and proportion are the main factors that determine the combination form of crusher in sand and stone aggregate production line. Here is a brief introduction of several commonly used crusher combination forms and their advantages and disadvantages.
1, single stage hammer crusher system
The advantages of the system are simple process, convenient operation and management, less occupation, low project investment, low energy consumption per unit product.
Its disadvantage is that the proportion of product varieties is not easy to adjust, and its applicability to ores is poor and its scope of application is narrow. The product grain shape is poor, the amount of fine powder is large, the product acquisition rate is low, and the dust collection air volume is large. The consumption of wear parts is high, and the later investment is large.
2, jaw crusher+ impact crusher system
The advantages of the system are more specifications, large-scale production, wide range of application; the proportion of product varieties is easy to adjust, the product grain shape is good, the powder is less; Good adaptability to medium abrasion index materials.
Its disadvantages are poor adaptability to materials with high abrasion index, medium aggregate yield, higher wear parts consumption than cone crusher, higher energy consumption per unit product.
3, jaw crusher+ cone crusher system
The advantages of the system are that the proportion of product varieties is easy to adjust; suitable for high abrasive index materials; product grain shape is good, the amount of fine powder is small, and the yield of coarse particle size aggregate is high; the energy consumption per unit product is low.
Its disadvantage is that when the production capacity of the system is large, it needs three stage crushing or multiple crushing machines, which will lead to complex process and high project investment. Compared with the impact crusher system, the scope of application is narrow.
4, jaw crusher+ impact crusher+ sand making machine system
This system adds a sand making mahcine on the basis of the jaw crusher+ impact crusher system, forming a three stage crushing system. The role of sand making machine is to shape the aggregate. In addition to the advantages of jaw crusher+ impact crusher system, this system can also produce aggregates of different quality. At the same time, the fine powder produced in the process of aggregate shaping can also be used to produce machine-made sand.
Its disadvantage is adding a sand making machine in the system, so that the early investment increases, the total investment is high.
5, jaw crusher+ cone crusher+ cone crusher system
This system adds a cone crusher on the basis of the jaw crusher+ cone crusher system, forming a three stage crushing system. In addition to the advantages of jaw crusher+ cone crusher system, this system has large production capacity, suitable for large-scale production lines.
Its disadvantage is adding a cone crusher in the system, so that the early investment increases, the total investment is high.
Introductions of crushers mentioned above
Jaw crusher is generally used as primary crushing equipment in the crushing plant. It has large crushing ratio and large feeding size. SBM provides PE and CI6X series jaw crusher for customers to choose.
Because of the features of wear-resistant parts in impact crusher, impact crusher has limits to crush raw materials with high hardness. It is more suitable for coarse, medium or fine crushing soft or medium hard raw materials, such as limestone, feldspar, calcite, talc, barite, clay, kaolin, dolomite, gypsum and graphite and so on.
There are 3 different types of impact crusher, PF series, PFW series and CI5X series impact crusher.
Cone crusher is a kind of very commonly used crushing equipment in mining and construction industry. At present, there are numerous manufacturers that provide cone crusher for sale in the market.
As a professional manufacturer, provides spring cone crusher and hydraulic cone crusher for sale. In spring cone crusher, there is CS series spring cone crusher. In hydraulic cone crusher, there are HPT and HST series hydraulic cone crusher for customers to choose. And there are various different models in these types, suitable for different production requirements.
Vertical shaft impact crusher
Vertical shaft impact crusher is one of the commonly used sand making equipment.
The “rock on rock” crushing method is suitable for crushing abrasive materials with medium hardness and above, such as basalt etc. The shape of the finished products is good under the crushing method of "rock on rock".
The “rock on iron” crushing method is suitable for crushing abrasive materials with medium hardness and below, such as limestone etc. Under the “rock on iron” crushing method, sand making machine has high efficiency.
Besides, “rock on rock” crushing method is used for shaping and “rock on iron” crushing method is used for sand making.
In sand aggregate production line, crushing system is in a key position. The capacity of the same crusher is different when crushing different materials under the same conditions, and the capacity of different crushers is also different when crushing the same material under the same conditions.
How to choose the type and combination form of crusher when crushing materials needs to be considered from the physical characteristics of materials, product quality requirements and production capacity.