The sorting equipment can effectively separate the coarse and fine particles, avoid the over-smashing of fine-grained minerals, and effectively crush the coarse minerals at the same time. It is indispensable equipment in the beneficiation process. Spiral classifiers and hydro-cyclones are the sorting equipment commonly used in beneficiation technology. Recently, we have a customer inquiries that we would like to purchase several sorting equipment, but I don’t know which of the spiral classifier or hydro-cyclone is better. Today, we will give you details from the area, applicable materials, sorting effect, cost, etc. introduce.
Floor area comparison
Spiral classifier: The spiral classifier has a variety of models, and different types of classifiers have different floor spaces. Among them, the small screw classifier covers an area of 12 square meters, and the large spiral classifier covers an area of up to 100 square meters, which is a large area.
hydro-cyclone: The water conservancy cyclone occupies a small area, which is only half of that of the spiral classifier.
Material comparison
Spiral classifier: There are two main types of spiral classifiers, high weir type, and submerged type. Among them, the high weir type is suitable for the sorting of coarse particles, and its sorting overflow particle diameter is generally greater than 0.15 mm; the submerged spiral classifier is mainly for fine particle sorting, and the sorting overflow particle size is generally less than 0.15 mm.
Hydro-cyclones: Hydro-cyclones are generally suitable for the sorting of fine materials, with a particle size range of 0.3-0.01 mm.
Comparison of sorting effect
Spiral classifier: The spiral classifier machine is mainly based on the principle that the solid particle size and specific gravity are different, so the sedimentation speed in the liquid is different. Transported to the discharge port as returned sand and discharged. According to the amount of returned sand, the processing capacity is 140-11880 t/d. According to the overflow, the processing capacity is 14-800 t/d.
Hydro-cyclone: It has strict requirements on pressure because the hydro-cyclone machine needs to be discharged on the side opposite to the inlet. That is to say, once the pressure is not up to the standard, the material stratification will be turbulent, causing the material to fail. Discharge normally from the discharge port. The treatment of hydro-cyclones is 3.1-220 m³/h.
Cost comparison
The purchase cost of the screw classifier machine is relatively high, but the equipment runs stably and is not prone to failure.
The purchase cost of hydro-cyclones is low, but it is necessary to purchase a series of auxiliary equipment, such as distributors, valves, pumps, etc., to complete the sorting of materials.
In addition, the spiral classifier is simple to operate and can be used after simple training. The hydro-cyclone separator machine is difficult to operate, and it is troublesome to install some auxiliary equipment. In general, if you have a sufficient budget in the early stage and the site is sufficient, you can choose a spiral classifier. If your site is small, mainly for the sorting of fine materials, you can choose a hydro-cyclone.
