FX250*14 Hydrocyclone group
FX250*14 Hydrocyclone group
Mineral Classifier Machine is mainly used for grading, sorting, concentration, and off the mud in mineral processing industry.
Mineral Classifier Machine is the equipment used for separating and removing heavy mud and sand of coarse particles and sometimes for dehydration of slurry. The Mineral Classifier Machine has two types of pressure type and gravity type and is made up of either cylindrical structure or metal pipe. Water is fed through the top of structure (or metal pipe) by means of pressure or gravity along the tangent line. Coarse and thick particulate matters are thrown to the wall, rotated down and discharged together with the concentrated liquid formed under the action of centrifugal force. Small particulate matters are discharged together with secondary upward vortex after rotated to some extent.
After pumped into the cylinder by sand pump (or height difference) at certain pressure (generally 0.5-2.5kg/cm) and flow velocity (around 5-12m/s) through the ore feed pipe and along the tangential direction, the pulp will rotate along the cylinder wall quite fast to generate substantial centrifugal force. Under the action of centrifugal force and gravity, thick and heavy ore grains are thrown to the wall, moved down along track of the spiral line and discharged out of the sand discharge nozzle at the cone bottom.While fine ore grains form ascending pulp flow with water at the cone center that is later discharged out of the overflow pipe.Compared with mechanical classifier, the hydrocyclone separator has such advantages: no moving part, simple construction; large productivity per unit volume; little area occupation; high grading efficiency (up to 80%-90%); fine grading size; low cost; few consumption of materials. Its shortcomings are quick wear of parts; large power consumption; substantial effect of ore feeding pressure, concentration and particle size on grading indicators.
The working principle of the cyclone is mainly centrifugal sedimentation. When the two-phase (or three-phase) mixture to be separated enters the cyclone at a certain pressure from the feeding port of the cyclone, a strong three-dimensional elliptical strong rotating shear is generated. Cut turbulent motion. Due to the different density of the particles, the centrifugal force, centripetal buoyancy, and fluid drag force are different. Due to centrifugal sedimentation, most of the coarse particles (or heavy phases) are discharged through the swirler bottom outlet, and most of the fine particles ( Or light phase) discharged from the overflow pipe to achieve separation and classification.
Features of Hydrocyclone:
1. Hydro Cyclone Separator is a kind of equipment for classifying the ore pulp by using centrifugal force.
2. Hydro Cyclone Separator has no motion and dynamic parts, but requires matching with corresponding slurry pump.
3.Cyclone desander is based on fluid solid particles in the desander in screening principle when rotating in cycloneand filter made, as a whole, in the field of water treatment to achieve sand removal, and descending the turbid,solid-liquid separation effect is remarkable.
4.Suitable for dry fine powder classifying,powders of ball shape ,flake shape and needle shape,also powders with different densities.
5.Product size from classifier can vary from D97:2 micron to 150 micron.The product size is adjustable,which makes the change of product size easy and simple.
6.Classifying efficiency(extraction rate) can be between 60% and 90%.Material with good flow-ability would have high classifying efficiency,otherwise,the classifying efficiency would be low.
7.Vertical classifier wheel would have low ratation speed,low wear and low motor power.
Advantage of the hydrocyclone:
1.save floor space;
2.low construction expense;
3.Large processing capacity;
5.Low maintenance charge;
6.easy to attach and detach;
7.The classification particle size can reach 10μm.
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