Hydrocyclone polyurethane hydrocyclone desliming dehydration hydrocyclone manufacture

Hydrocyclone polyurethane hydrocyclone   Manufacturer of desliming dehydration cyclone
Hydrocyclone is an equipment used to separate and remove heavy coarse-grained mud and sand in sewage
Sometimes it is also used for mud dewatering
It is divided into pressure type and gravity type
It is often made of circular cylindrical structures or metal pipes
Water enters from the upper part of the structure (or metal pipe) along the tangent line by pressure or gravity
Under the action of centrifugal force, coarse particulate matter is thrown to the wall and rotated downward to discharge together with the formed concentrated liquid
After the smaller particles rotate to a certain extent, they are discharged by the secondary uprotation vortex

  Detailed introduction
  Structure of hydrocyclone: the upper part is conical
The cylindrical cylinder is provided with a feed pipe which is tangent to the cylinder wall
The upper part of the cone is provided with a central overflow pipe connected with the cylindrical part
The upper end of the overflow pipe is directly connected with the external pipe through the buffer chamber to discharge the overflow
A grit nozzle is installed at the conical bottom to discharge coarse grit
In order to reduce wear, wear-resistant rubber or diabase, cast stone, silicon carbide and other wear-resistant materials can be lined at the ore feeding port, grit setting nozzle and the inner wall of the cylinder

 
  Working principle of hydrocyclone: when the slurry enters the cylinder along the tangent direction through the ore feeding pipe with a sand pump (or height difference) at a certain pressure (generally 0
5 ~ 2
5 kg / cm) and flow rate (about 5 ~ 12 m / s), the slurry will rotate along the cylinder wall at a very fast speed, resulting in a large centrifugal force
Under the action of centrifugal force and gravity, the coarser and heavier ore particles are thrown to the wall, move downward along the trajectory of the spiral line, and are discharged from the exhaust nozzle at the lower part of the cone, while the finer ore particles form an internal spiral rising slurry flow with water in the center of the cone, which is discharged through the overflow pipe

  Compared with mechanical classifier, hydrocyclone has the following advantages: no moving parts, simple structure; The production capacity per unit volume is large and the area is small; High classification efficiency (up to 80% ~ 90%) and fine classification particle size; Low cost and low material consumption
Its disadvantage is that the parts and components are damaged quickly; High power consumption; The feeding pressure, concentration and particle size have great influence on the classification index

  Hydrocyclones have been widely used in the beneficiation process of major metal mines
Mainly reflected in the following operations:
  1
One stage closed circuit grinding and classification
  2
Two stage closed circuit grinding and classification
  3
Concentrate regrinding classification
  4
Desliming before and after raw ore dressing
  5
Damming and backfilling of tailings
  In the closed-circuit grinding and classification system composed with the primary mill, it has higher classification efficiency and finer overflow fineness at higher feed concentration
The classification efficiency is 5-10% higher than that of the common spiral classifier, which is conducive to the improvement of mill utilization factor

  According to the requirements of grinding capacity, overflow fineness and grit concentration, the correct selection of hydrocyclones with appropriate specifications and models is the premise for the realization of chemical working conditions
Can provide φ 50、Φ 75、Φ 100、Φ 125、Φ 150、Φ 200、Φ 250、Φ 300、Φ 350、Φ 500、Φ 660 and other single unit, parallel unit or series unit

  When the tailings from the concentrator are sent to the tailings pond for treatment, the content of the tailings is less than 37-mu; M fine sand should not be used as dam material for tailings
After the cyclone is used for classification, the coarse tailings will remain in the dam body, the fine tailings will move towards the tail of the tailings pond, the fine slurry will also be classified naturally during the flow process, and the thin and fine tailings will also be classified naturally during the flow process
At the tail of the tailings pond, there is a clear water area, which can be used as backwater
In the full tail filling process, the cyclone is used for pre classification and concentration, so that most of the coarse particles are separated in advance, and the load of the subsequent filter is reduced, which can achieve better results
Using hydrocyclone to complete dam building and filling can solve the problems of ore leakage, beach collapse and excessive external drainage of tailings dam, and can achieve obvious economic and social benefits