Guide of Cyclone Separator
Guide of Cyclone Separator
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View Details 01 The lower part of the cyclone separator is a conical shell, and the upper part is connected to a cylindrical shell. The upper end of the cylindrical casing is sealed, and a bottom plate is arranged in the middle, and a short pipe overflow pipe is inserted in the center of the bottom plate. A feeding pipe is connected to the lower portion of the bottom plate along the tangential direction of the cylindrical shell surface, and an overflow discharging pipe is connected to the upper portion of the bottom plate along the tangential direction of the casing, and the lowermost end of the cone has are placeable settling nozzle. The cyclone separator is mostly made of wear-resistant cast iron. In order to reduce the wear speed of the inner wall of the body, it is also often lined with wear-resistant materials, such as wear-resistant rubber. The specifications of the cyclone separator are expressed in terms of the diameter of the cylinder. For example, the diameter of the cylindrical portion of the Φ350 hydrocyclone is 350 mm, and the cone angle of the cone can be different, typically a minimum of 10° and a maximum of 45°. 02 Cyclone separator is a kind of equipment for classifying or separating materials based on their particle size and density. The material to be classified or separated is fed at a high speed from the inner wall of the cylinder by a tangential line, and the mixture of medium and particles is rotated to form a centrifugal force field which solid materials or liquid phases of different particle sizes and different densities generate different motion trajectories. Under the action of centrifugal force, medium viscous resistance, buoyancy, gravity and other force fields, coarse particles and large density particles move to the periphery and are discharged from the spigot through the cone; fine particles, low-density particles or liquid phase move to the center and discharge by the overflow tube, thus achieving separation of coarse and fine particle or separation of fluids of different densities. Cyclone separators are mainly used in the following aspects in mineral processing: (1) Used as the classification equipment in the grinding circuit, especially for fine grinding; (2) Used for desliming and concentration of slurry; (3) Heavy medium hydrocyclones are common heavy media classification equipment. 03 At present, there are many types of cyclone separator on the market. According to the use function, cyclone separator can be mainly divided into classifying cyclone separator, dewatering cyclone separator, desliming cyclone separator, deslagging cyclone separator and concentrating cyclone separator. The specific application and use phase of cyclone separators are as follow: Classifying cyclone separator, as its name implies, is to separate and classify the material, such as solid-liquid separation, coarse-fine separation, which is divided into one-stage classification and two-stage classification. One-stage classifying cyclone separators are widely used in the grinding stage of the small and medium-sized processing plants, and forms a closed-circuit grinding and classifying cycle with ball mill. The two-stage classifying cyclone separators are generally used in the second-stage inspection to achieve the function of controlling classification. The dewatering cyclone separators are mainly used to complete part of the dewatering operation, and the solid-liquid separation cannot be completely realized only by dewatering cyclone separators. The structure of the cyclone separator varies depending on the material being processed.1. Classifying cyclone separator
2. Dewatering cyclone separator
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3. Desliming cyclone separator
The desliming cyclone separators are mainly used for material desliming operation.
4. Deslagging cyclone separator
Deslagging cyclone separators are widely used in power plant wet desulfurization, lime pulping, tap water sand removal, sewage treatment and other operations. It is mainly used to remove coarse sand and impurities of large particle sizes. Higher slag removal efficiency can be achieved with a dedicated deslagging cyclone separator.
5. Concentrating cyclone separator
The feed port of concentrating cyclone separator has a unique structure, so it is generally not used alone. It is often used together with thickeners, dewatering screens, filters and other equipment to improve dewatering efficiency and achieve concentration of various minerals before filtration. It is also often used in the concentration operation before the flotation and cyanidation operation, as well as the operation of tailings dry stacking.
Concentrating cyclone separator is also used for dewatering in nature. However, the feed port of concentrating cyclone separator has a unique structure, and the concentration of the underflow slurry is larger.
The above are the several aspects about cyclone separator used in the mineral processing. When choosing a cyclone separator, it is recommended to purchase it from the professional and regular cyclone separator manufacturers, and consult professional hydrocyclone technicians according to the actual production conditions to achieve both technical indicators and economic benefits.
Classification of Hydrocyclones
Hydrocyclone is a common separation and classification equipment, commonly used in centrifugal sedimentation principle. When the two-phase mixture to be separated enters the cyclone tangentially from the hydrocyclone periphery with certain pressure, a strong three-dimensional elliptical strong rotational shear turbulent motion is generated. Due to the particle size difference between coarse and fine particles, they are subject to different sizes of centrifugal force, centripetal buoyancy, fluid traction, etc., and are subject to centrifugal sedimentation, most of the coarse particles are discharged through the bottom flow port of the cyclone, while most of the fine particles are discharged from the overflow pipe, thus achieving the purpose of separation and classification.First of all, we would like to introduce the classification of hydrocyclone. The hydrocyclone is divided into classification hydrocyclone, dewatering hydrocyclone, desilter hydrocyclone, slagging hydrocyclone, thickening hydrocyclone, tailing dry discharge hydrocyclone.
Dewatering hydrocyclone
Dewatering hydrocyclone is mainly used for the dewatering operation of various mineral slurries. According to different material characteristics, different production and installation environment, different structure design is adopted, which has the advantages of lower pressure, large processing capacity and high dewatering efficiency. It has the advantages of lower pressure, larger capacity and higher dewatering efficiency. In the dewatering operation of a tailing re-election slurry, the hydrocyclone is used in a concentration of 5-12% of the feed ore and 75% of the -200 mesh content. The average concentration of the overflow of the hydrocyclone is controlled below 1.5% under the condition of 75% of the feed ore concentration and -200 mesh content, which can achieve effective dewatering and avoid useful dewatering. In the dewatering operation of a silica sand, the average concentration of the hydrocyclone overflow is controlled to less than 1.5%, which can achieve effective dewatering and avoid the loss of useful minerals. In a silica sand dewatering application, the overflow concentration of the dewatering hydrocyclone reached 1.5% or less. In a silica sand dewatering operation, the overflow concentration of the dewatering hydrocyclone reaches less than 0.5%, and the overflow is almost unqualified fine mud, achieving the dual effect of dewatering and mud removal. The hydrocyclone overflow water is settled and reused to save cost.
Desilter hydrocyclone
High efficiency desliming hydrocyclone is mainly used for the desliming operation of various metal ore and non-metal ore slurry. High efficiency desilter hydrocyclone. On the basis of absorbing the excellent achievements from abroad, after several years of practice, we have determined the ratio and coordination of the main components of the high efficiency desliming cyclone. The high efficiency desilter hydrocyclone is designed and produced with high efficiency of desilter, low loss of useful minerals and cost saving for users. The design and production of high-efficiency desilter hydrocyclone has the advantages of high desilter efficiency, low loss of useful minerals, saving cost for users and improving production efficiency. Case: A silica sand mine discarded tailings The muddy minerals of a silica sand mine account for 12.7%, and the fineness of -325 mesh accounts for 39.3%, and almost all the muddy minerals are stored in -325 mesh grade.
Deslagging hydrocyclone
High efficiency thickening hydrocyclone is often used in conjunction with thickener, filter, etc. It is applied to various minerals before filtration concentration, mineral fine grinding flotation, gold pulp cyanidation and other preparatory operations before the concentration, as well as the tailings of high concentration of tailings, etc.
Concentration hydrocyclone
High efficiency thickening hydrocyclone is often used in conjunction with thickener, filter, etc. It is applied to various minerals before filtration Concentration, mineral fine grinding flotation, gold pulp cyanidation and other preparatory operations before the concentration, as well as the tailings of high concentration concentration of tailings, etc.
High efficiency thickening hydrocyclone is seldom used alone, but often used in combination with other equipment. Thickening hydrocyclone can be adjusted in terms of structure and installation according to customer requirements and the specific conditions of upstream and downstream operations to achieve the most optimal use effect, while the hydrocyclone can produce a higher bottom flow concentration with a lower overflow concentration by using the unique internal structure design to improve productivity, reduce expenses and save costs.
Tailings dry discharge hydrocyclone
High efficiency thickening hydrocyclone is the core of the tailings dry discharge system, high efficiency thickening hydrocyclone, thickener and dewatering screen.The combination of high efficiency thickener hydrocyclone with thickener and dewatering screen can complete the thickening and dewatering process efficiently.
Hydrocyclone applications
Hydrocyclone are commonly used as classification equipment in industrial enterprises with mineral processing links. Hydrocyclone are mostly used for classification, sorting, thickening and desliming of ore slurry in these enterprises. When hydrocyclone is used as classification equipment, it is mainly used with desilter, desander, mud cleaner. When used as classification equipment, cyclones are mainly used with mills to form a grinding and classification system. In addition, hydrocyclones are mostly used for desilter in re-election plants and dewatering in tailings treatment.
Hydrocyclone advantages
The advantage of the hydrocyclone is that it has no internal moving parts, so the structure is simple and easy to use. Compared with Compared with other classifying and separating equipment, the classification efficiency is higher, which can reach more than 80%, and the hydrocyclone classifies. The particle size of cyclone classification is fine, which can meet the requirements of industrial production. In addition, the low cost and low material consumption of cyclone more economic value.
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