The Hydrocyclone have advantages and disadvantages?
Hydrocyclone has many advantages: simple structure, no moving parts; processing capacity per unit volume; sand washing equipment high classification accuracy; low cost of equipment; occupied, easy maintenance; sand mining equipment less the number of stay and time of pulp in the machine.
Hydrocyclone shortcomings: transport the slurry with the sand pump consumes power; sand pump wear violent and out of the feed opening, so frequent repair; requirements to the ore particle size, mobile sand washing plant pulp density and pressure changes in the scope of small, easily lead to the quality of classification fluctuations. But to take measures, such as out of the feed opening set cast stone bush, can greatly reduce the wear and tear. Strictly to strengthen the operating system, most of the cyclone affecting the quality of shortcomings can be avoided and reduced.
The specifications of the cyclone is part of its Park tube diameter. For example: 350 hydrocyclone Park tube diameter of 350 mm.
Section III classification process factors
the main factors affecting the classification process?
Factors affecting the classification process. Ore properties: clay content and grain size of the proportion and shape of the ore into the grading machine materials: machine construction factors: the size of the helical axis of the trough tilt angle rotation speed, the width of the trough, the operating The factors are: pulp density, uniformity to the amount of ore to mine, the level of the overflow weir.
when the clay content material to the into the grader or fine for a long time what would happen?
When the clay content in the graded material or fine grade the more slurry viscosity the greater, and thus the smaller the settling velocity of mineral particles in the pulp, and thus the overflow product size also thicker. In this case, in order to meet the requirements to ensure that the overflow product size should be appropriate to reduce the grain slurry concentration. Materials containing clay less or after desliming, in order to avoid the entrainment of sand returning too much fine-grained level, should be graded concentrations of an appropriate increase.
the proportion of graded materials of different sizes and ore particle shape different classification?
The same concentration and other operating conditions, if the smaller the proportion of graded materials, the greater the viscosity of the slurry particle size in the overflow product thicker, increase in content of fine particles in the return sand. In the classification of the large proportion of the ore should be properly increase the concentration of grading; grading the proportion of small ore, should be an appropriate lower classification levels.
When the ore particles are flattened shape, settling velocity slower than round or close to the park-shaped ore settling velocity, and thus lower the concentration of flat ore grading, or to accelerate the rate of discharge of the overflow product.
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