Particles in the external cyclone separator are subjected to centrifugal force. If its density is greater than that of the surrounding liquid, the centrifugal force will become larger and larger. Once the centrifugal force is greater than the liquid resistance caused by movement, the particles will overcome this resistance and move to the wall of the cyclone to separate from the surrounding liquid. Particles close to the wall are pushed by the liquid above the cyclone and move downward along the wall.
When it reaches the vicinity of the underflow, it is collected into a suspension with high concentration and discharged from the underflow. The separated liquid rotates downward and continues to move. After entering the conical section, the inner diameter of the hydrocyclone is gradually reduced, and the rotating speed of the liquid is accelerated. Because the pressure distribution along the radial direction is uneven when the liquid produces vortex, the closer it is to the axis, the smaller the pressure is, and the closer it is to the axis, the closer it is to zero.
It becomes a low pressure area or even a vacuum area, causing the liquid to move in the axial direction. At the same time, because the underflow of the hydrocyclone is greatly reduced, the liquid can't be discharged from the underflow quickly, and the overflow port in the center of the top cover of the hydrocyclone cavity moves towards it because it is in the low pressure area, forming an upward rotating motion and discharging from the overflow port.
1, the spiral offset interface can guide the water flow to form a spiral flow pattern, and has the function of energy dissipation and deceleration, effectively reducing the pressure fluctuation of the horizontal straight pipe.
2. The horizontal straight pipe interface with forced tangential water inflow ensures that the horizontal straight pipe water flows tangentially into the expansion section according to a specific descending angle, and is organically integrated with the descending water of the riser through the guide vanes to form a complete and continuous wall-attached spiral water film flow.
3. The difference between the intensified cyclone and other products is that the greater the displacement, the more obvious the centrifugal effect of water flow, the more complete the flow pattern of spiral water film with wall and the thicker the water film. Such a nearly perfect flow pattern makes the center of the riser form a continuous gas core, which ensures the smooth exhaust passage, effectively reduces the pressure fluctuation of the system and protects the effectiveness of the water seal of sanitary ware.
4. The unique flow pattern correction function of the enhanced cyclone ensures that it still has good hydraulic characteristics even if the axis of the drainage riser of the super high-rise building is greatly deviated.
Extended data:
Cyclone type:
Dehydration cyclone separator:
Dehydration cyclone is mainly used for dewatering various pulp. According to different material characteristics, different production and installation environments, different structural designs are adopted, which have the advantages of decompression, large processing capacity and high dehydration efficiency.
When it is used in tailings gravity separation pulping and dewatering, when the feed concentration is 5- 12% and the content of -200 mesh is 75%, the average overflow concentration of cyclone is controlled below 1.5%, and the loss of useful minerals is avoided under the condition of effective dewatering.
In the application of silica sand dewatering, the overflow concentration of the dewatering cyclone is below 0.5%, and almost no unqualified fine mud escapes, thus achieving the dual effects of dewatering and desliming. After settling, the overflow water of the cyclone is reused, which saves the cost.
Desliming cyclone:
The high-efficiency desliming cyclone is mainly used for desliming all kinds of metal ores and nonmetallic pulp. On the basis of absorbing foreign excellent achievements, after several years of practice, the proportion and coordination of main components of high-efficiency desliming cyclone are determined. The designed high-efficiency desliming cyclone has high desliming efficiency.
Less loss of useful minerals, saving user costs and improving production efficiency. Case: The argillaceous minerals in the abandoned tailings of a silica sand mine account for 12.7%, of which -325 mesh accounts for 39.3%, and almost all argillaceous minerals are stored in the particle size of -325 mesh.
Slag cyclone separator:
Deslagging cyclone: used in wet desulfurization, lime pulping, crude oil deslagging, tap water desanding, sewage treatment and other operations, it can effectively remove coarse sand, metals and other particulate impurities in the slurry, with the advantages of high deslagging efficiency and less loss of useful slurry.
Concentrating cyclone:
High-efficiency concentration cyclone is usually used with thickener, filter and so on. It is suitable for the cleaning of various minerals before filtration, the cleaning preparation before fine grinding and flotation of minerals, the cyanidation of gold pulp and the high concentration transportation of tailings to realize the cleaning of pulp.
The high-efficiency concentration cyclone is rarely used alone, but it is often used in combination with other equipment. The structure and installation of the concentration cyclone can be adjusted according to the customer's requirements and the specific situation of upstream and downstream operations, so as to optimize the use effect.
At the same time, the cyclone adopts a unique internal structure design, which can produce higher underflow concentration under the premise of lower overflow concentration, improve production efficiency, reduce expenses and save costs.
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