Several main types of cyclones

According to the construction section, it is divided into one section of classifier cyclone and two section of classifier cyclone.

According to the function, it is divided into classifier cyclone, dewatering cyclone, desliming cyclone, deslagging cyclone, thickening cyclone and special cyclone for tailing dry discharge.

Folded one-stage classifier cyclone

One-stage classifying cyclone is widely used in various metal ore and non-metal ore processing plants with a single series processing capacity of 500 tons per day or more, and it forms a closed circuit grinding and classifying cycle with one stage ball mill. According to different processing capacities, the cyclone can be arranged either as a single unit or in groups. In the case of higher feed concentration, it has higher classification efficiency and finer overflow fineness, the overflow product force promotes uniformity, and the efficiency of the separator is 5-10% higher than that of the commonly used spiral classifier, which is conducive to the improvement of the mill utilization factor.

(1) Large vertebral angle cyclone

The angle of the cyclone is large, up to 180 degrees (also known as flat cyclone), suitable for processing high concentration, high mineral ratio, overflow fineness requirements -200 mesh 60% of the following occasions, especially for the stage grinding process of iron ore a grinding. The cyclone of this structure has a series of advantages such as uniform overflow particle size, light overflow product over-grinding phenomenon, bottom flow yield can be adjusted significantly without affecting the normal work of the cyclone, etc. Compared with the same cyclone, it can improve the processing capacity of one section of grinding by 10-25%.

(2)One section high fineness classifier cyclone

It is suitable for a section of grinding requiring fineness of -200 mesh 80% or more. Due to the fine grading size, even if the normal structure cyclone reaches the required grading size, the grading efficiency will be greatly reduced, the sand return volume will be increased, and the new ore feed to the mill will be low. One-stage high fineness classifying cyclone can reduce the degree of overflow running coarse and bottom flow pinch fine through the change of structure, so as to obtain high overflow fineness and keep high classification efficiency at the same time.

Folded two-stage classifier cyclone

Two-stage classifier cyclone is widely used in the second stage inspection and control classification of various metallic and non-metallic ores. The specifications of cyclone range from 75mm to 660mm, which can be applied to different processing capacity and different requirements for grinding fineness. The cyclone adopts unique structure design, which can make the overflow fineness of two-stage cyclone from -200 mesh 75% to 95% arbitrary selection and adjustment.

Folded dewatering cyclone

Dewatering cyclone is mainly used for the dewatering operation of various mineral slurries. According to different material characteristics and different production installation environment, different structure design is adopted, which has the advantages of lower pressure, large processing capacity and high dewatering efficiency. In the dewatering operation of a tailing re-election slurry, the average concentration of the cyclone overflow is controlled below 1.5% at a feed concentration of 5-12% and a -200 mesh content of 75%, which avoids the loss of useful minerals while achieving the purpose of effective dewatering. In the dewatering operation application of a silica sand, the overflow concentration of the dewatering cyclone reaches less than 0.5%, and the overflow is almost unqualified fine mud, which achieves the double effect of dewatering and desliming, and the cyclone overflow water is reused after settling to save cost.

Folded desliming cyclone

High efficiency desliming cyclone is mainly used for the desliming operation of various metal ore and non-metal ore slurry. On the basis of absorbing the excellent achievements from abroad and after several years' practice, the ratio and coordination of main components of high efficiency desliming cyclone are determined, and the designed and produced high efficiency desliming cyclone has the advantages of high desliming efficiency, less loss of useful minerals, saving cost of users and improving production efficiency. Case:A silica sand mine discarded tailing species mud minerals accounted for 12.7%, fineness - 325 mesh accounted for 39.3%, mud minerals are almost all stored in the -325 mesh level.

Fold slag removal cyclone

De-slag cyclone:It is used in wet desulfurization of power plant, lime slurry, crude oil de-slagging, tap water de-sanding, sewage treatment, etc. It can effectively remove coarse sand, metal and other particulate debris in the slurry, with the advantages of high slag removal efficiency and low loss of useful slurry.

Folding thickening cyclone

High efficiency thickening cyclone is often used with thickener, filter, etc. It is applied to the thickening of various minerals before filtration, the thickening preparation work before mineral fine grinding flotation, gold pulp cyanidation, etc., as well as the high concentration of tailings transport, etc., to realize the thickening of the pulp.

High efficiency thickening cyclone is rarely used alone, often used in combination with other equipment, thickening cyclone can be adjusted in structure and installation according to customer requirements and the specific conditions of upstream and downstream operations to achieve the most optimal use of the effect, while the cyclone can produce a higher bottom flow concentration under the premise of lower overflow concentration by using the unique internal structure design, improving production efficiency, reducing expenses and saving costs. .

Folded tailings dry discharge cyclone

◆Process features

▪ Tailings are discharged from dams to dumps, eliminating tailings storage and reservoir water, avoiding accidents such as dam breakage, dam spreading and dam collapse, and improving safety.

High economy, lower investment cost, save land acquisition cost, shorten construction period, low maintenance and operation cost

▪ Achieve zero discharge of wastewater, saving a lot of water resources for the society and a lot of money for the enterprise.

The solution of tailings dry stacking technology can be used to cofferdam and plant trees as well as to backfill pits and collapse areas, thus achieving a double harvest of resource development and environmental protection.

It is easy to manage, easy to operate, and has a wide range of applications, and is suitable for the concentration and dry discharge of tailings of various sizes and concentrations.

Example of application equipment

High efficiency thickening cyclone ------ Core of tailings dry discharge system

The combination of high-efficiency thickening cyclone, thickener and dewatering screen can complete the thickening and dewatering process efficiently. After thickening and dewatering by cyclone, the increase of bottom flow concentration creates good conditions for dewatering screen operation, which can greatly increase the capacity of dewatering screen, and the decrease of overflow concentration can effectively reduce the load of thickener. Using the unique structure design, it is widely used in all kinds of mineral processing plants. In iron ore, even if the feed concentration is around 8%, the bottom flow concentration can still maintain more than 70% and the yield is more than 75%.