Application of Apatite Vibrating Screen

Apatite vibrating screen is used for screening apatite, mainly because apatite materials have the characteristics of uneven particle size distribution, moderate hardness, easy agglomeration and many impurities. Ordinary screening equipment is difficult to achieve efficient and stable screening effect. The apatite vibrating screen drives the screen surface to generate high-frequency vibration through the excitation force, which can make the material quickly stratified and screened, improve the screening efficiency, and effectively prevent the phenomenon of blocking and adhesion. 

Apatite Vibrating Screen can be equipped with screens of different mesh sizes to achieve full screening control from coarse screening to fine screening. In the grading of coarse particles of phosphate fertilizer, a perforated screen of 10-20 mesh (aperture 2.0-0.85mm) can be selected to efficiently separate particles with a particle size greater than 0.85mm; for fine screening of phosphorus chemical raw materials, a woven screen of 100-325 mesh (aperture 0.15-0.045mm) can be equipped to achieve precise grading of ultrafine powders. The equipment adopts a multi-layer vibrating screen structure, which adjusts the amplitude (adjustable from 0-5mm) and vibration frequency (0-3000 times/minute) by frequency conversion, and is equipped with a 304 stainless steel or polyurethane screen. It can handle wet screening with high water content and complete precise dry screening, and the screening efficiency can reach more than 95%.

How to choose apatite vibrating screen?

Apatite is mostly irregular particles or powders with different particle sizes. The raw ore often contains impurities such as quartz, clay, carbonate, etc. The specific gravity is relatively large, about 3.1~3.2. Therefore, when selecting an apatite vibrating screen, the characteristics of apatite, the screening process requirements and the on-site working conditions should be considered to ensure stable operation of the equipment. Especially for ore pretreatment and classification, phosphate rock powder finished product screening, etc.

After the phosphate ore is crushed, it needs to be screened to separate large pieces, qualified particle size and fine powder materials. Circular vibrating screen or drum screen is usually used at this stage

In the process of phosphate fertilizer production, such as the granulation of superphosphate, ammonium phosphate and other products, linear vibrating screen or multi-layer vibrating screen is needed to classify and screen phosphate fertilizers of different particle sizes to remove oversized or overfine particles and improve the particle size uniformity and commodity grade of the product.

In the production of phosphorus chemical raw material powder, the powder needs to be finely screened to remove agglomerates, agglomerate particles and impurities. This process often uses ultrasonic vibrating screens, which can effectively prevent fine powder from blocking the screen and improve the screening accuracy. The screen range is usually 100~325 mesh.

The equipment can be equipped with screens of different meshes (such as 10-20 mesh for phosphate fertilizer grading, 100-325 mesh for phosphate chemical fine powder screening), realizing the whole process screening control from coarse screening to fine screening.

Application of Apatite Vibrating Screen Technical Parameters

Advantages of Application of Apatite Vibrating Screen

Application of Apatite Vibrating Screen has the advantages of screening and precise grading, wear-resistant and anti-blocking design, significant energy saving and consumption reduction, strong adaptability of intelligent control, and safe operation:

Screening and precise grading: The apatite vibrating screen is driven by a high-frequency vibration motor, and the screening efficiency is 30%~50% higher than that of the traditional screen machine. It can accurately separate apatite particles of different particle sizes from 0.1 to 30 mm, meeting the stringent requirements of chemical, fertilizer and other industries for mineral fineness.

Wear-resistant and anti-blocking: In view of the high hardness of apatite, the screen is made of 304 stainless steel or polyurethane composite material, and its life is extended by more than 3 times; the elastic cleaning device automatically cleans the adhered particles to avoid the problem of hole blocking.

Energy saving and consumption reduction: The power of the vibration motor is 15%~20% lower than that of similar equipment, and the daily processing capacity of a single unit can reach 50~100 tons, and the energy consumption cost is reduced by 25%, which meets the green mine standards.

Strong adaptability: Equipped with a variable frequency control system, it can automatically adjust the amplitude (2~5mm) and vibration frequency (800~1500 times/minute) according to the moisture content of apatite (≤8%) to ensure the screening efficiency of high-viscosity materials.

Safe operation: The fully sealed structure is equipped with a pulse dust removal interface, and the dust concentration is controlled below 10mg/m³; the shock-absorbing spring reduces the noise to 75 decibels, which is better than the industrial standard.

Recommended mesh number of apatite vibrating screen

The mesh number of the apatite vibrating screen needs to be determined according to the specific screening requirements. The larger the mesh number, the smaller the aperture, and the finer the particles of the screened material. For the screening of apatite, if it is a coarse screening, a screen with a smaller mesh number will be selected to remove larger impurities or particles.

Application link	Screening purpose	Recommended mesh number range	Corresponding particle size (μm)
Ore initial screening/grading after crushing	Removal of large particles, coarse screening	4~10 mesh	2000~4000μm
Grading of phosphate fertilizer particles after granulation	Separation of powder and finished particles	10~20 mesh	850~2000μm
Medium-sized powder grading (phosphate)	Control of medium powder particle size	40~80 mesh	180~425μm
Fine phosphorus powder classification (chemical grade apatite)	fine screening to remove impurities and prevent caking	100~200 mesh	75~150μm
Ultrafine phosphide fine screening	precision screening, removal of crystal agglomerates	200~325 mesh	44~75μm

What is the use of apatite vibrating screen?

Apatite vibrating screen is widely used in phosphate ore classification, phosphate fertilizer granulation screening, phosphorus chemical powder fine screening and desludging and impurity removal. In raw ore processing, it can efficiently remove unqualified particle size and improve crushing and flotation efficiency; in phosphate fertilizer production, it can control particle grade through screening and improve finished product consistency; in chemical processing, fine screening ensures powder purity and reaction efficiency; and in pre-packaging impurity removal and environmental dust removal, vibrating screens also play a key role. 

Specific application case of apatite vibrating screen

Apatite vibrating screen is an indispensable equipment in the phosphate ore beneficiation process, mainly used for material pre-screening, particle size classification, impurity removal, dehydration and other treatments. Depending on the process objectives, the vibrating screen is usually configured in key stages such as crushing, grinding, and flotation to improve the quality of phosphate concentrate and the overall process efficiency.

The apatite ore processed by the beneficiation plant has a low grade, and the ore properties are complex and contain a variety of impurities. In order to improve the recovery rate and concentrate grade of apatite, the ore needs to be efficiently screened and graded.

Equipment selection: The circular vibrating screen is selected as the coarse screening equipment to separate large pieces of ore and impurities such as soil in the raw ore; the linear vibrating screen is used as the fine screening equipment to further screen and grade the crushed ore, providing suitable feed for subsequent grinding and beneficiation operations. By adopting the combined screening process of circular vibrating screen and linear vibrating screen, the apatite recovery rate of the concentrator has increased by more than 10%, and the concentrate grade has also increased by about 5%.

Apatite vibrating screen supplier

When choosing an apatite vibrating screen supplier, it is more important to see whether it has the production capacity of various types of equipment and rich industry application experience. High-quality suppliers can provide a variety of equipment such as linear vibrating screens, three-dimensional vibrating screens, dewatering screens, heavy-duty screens, etc. according to parameters such as apatite particle size, impurity content, humidity and processing capacity, which are suitable for classification before crushing, fine screening before flotation, and dewatering after flotation. Supplier should have non-standard customization capabilities to adapt to different working conditions such as open-pit mines, mineral processing workshops, and wet operations. 

Apatite vibrating screen plays a key role in the field of ore processing. Through pretreatment, precise screening and product optimization, efficient grading of apatite is achieved. The refined operation from coarse screening to fine screening not only improves the utilization rate of raw materials, but also meets the stringent requirements of apatite particle size in different industries.