high frequency dewatering vibrating screen for minerals

High frequency dewatering vibrating screen is widely used in many industrial fields such as mineral processing, sand and gravel, washed coal, construction sand recycling and tailings treatment, which is one of the indispensable key equipments in the current wet production process.

Features of high frequency dewatering vibrating screen:

1. Multi-section screen surface inclined design: the front end of the screen is inclined at a large angle, which is conducive to the rapid formation of a stable material layer; the tail is designed with a negative inclination angle, which prolongs the material residence time and improves the dewatering efficiency;
2. High-frequency small amplitude excitation system: the use of dual-motor reverse synchronous drive, high vibration frequency, small amplitude, to ensure that the material is efficiently propelled at the same time to promote the rapid passage of the liquid through the screen mesh;
3. Wear-resistant and corrosion-resistant screen mesh: the screen mesh is mostly made of polyurethane material, which has excellent elasticity and wear-resistant, anti-clogging and long service life;
4. Solid structure, convenient maintenance: the main frame is fastened with high-strength bolts (e.g. Huck bolts) to avoid stress cracks that may occur in the traditional welded structure;
5. Low vibration noise of the screen body: reasonable vibration system design, so that the whole machine runs smoothly, low noise, adapt to long time continuous work.

Performance advantages of high frequency dewatering vibrating screen:

1. Ultra-low residual moisture: the moisture content of the treated material can be controlled at 10%~15%, which greatly reduces the cost of subsequent drying or stockpiling;
2. High screening precision: can efficiently deal with fine-grained materials with particle size in the range of 0.1~5mm, and it is not easy to produce leakage and blocking sieve phenomenon;
3. Energy-saving and environmentally friendly structure: compared with traditional dewatering equipment, the power consumption is smaller, while the structure is more compact, occupies an area of less;
4. Adaptable: according to different working conditions to adjust the amplitude, frequency, screen surface material and inclination angle, to meet a variety of material characteristics;
5. Flexible installation: simple and compact structure, can be used as a stand-alone machine, can also be combined with hydrocyclone, thickening pool and other equipment to form a closed-loop recovery system.

Working principle of high frequency dewatering vibrating screen:

It is mainly driven by two excitation motors to make the screen body produce high frequency linear vibration. When the water-containing material falls to the screen surface from the feeding end, it firstly spreads rapidly to form material bed in the feeding section with positive inclination angle, prompting the free water to be separated and discharged rapidly.

As the material advances to the middle and discharge end, due to the screen surface with -5 degrees of negative inclination, the material movement speed slows down, under the action of high-frequency vibration, further aggravate the solid-liquid separation. Materials in the screen surface constantly jump vibration, moisture through the screen mesh discharge, dry material along the discharge end, so as to achieve the purpose of continuous dewatering.

Application areas of high frequency dewatering vibrating screen:

1. Mining beneficiation: suitable for iron ore, gold ore, manganese ore, copper ore and other metal ore concentrate or tailings dewatering process;
2. Mechanism sand washing: used for river sand, mountain sand, mechanism sand and other sand washing after the dewatering and recycling process, to prevent the loss of fine sand;
3. Coal treatment: applied in the recovery and dewatering system of coal slurry water, and used as the final dewatering equipment in coal washing plant;
4. Environmental protection engineering: used for solid-liquid separation in sewage treatment plant, sludge thickening treatment, water reuse and other process links;
5. Non-metallic mineral processing: widely used in quartz sand, potassium feldspar, kaolin, fluorite and other non-metallic minerals dewatering and grading.