General Introduction
High-frequency screen is made up of the vibrator, feeding distributor, structure frame, chassis, suspension springs, screen panels, etc. It has the following merits: high efficiency, low amplitude, high-frequency screening. The principle of the high-frequency screen is different from the general ones. It adopts the technology of high frequency.
Working Principle
The High Frequency Screen operates by using high frequency vibrations to break the surface tension of the pulp. The fine particles in the material then oscillate rapidly on the screen surface. This accelerates the separation of useful minerals with relatively high density. It increases the contact probability between the material and the screen, creating better separation conditions. As a result, materials smaller than the separation particle size, especially those with high density, can pass through the screen mesh along with the pulp.
Structural Composition
Vibration Exciter: It is the component that generates high-frequency vibrations, which is usually an electromagnetic vibrator or other types of vibrators, providing the power source for the screen's vibration.
Ore Pulp Distributor: Responsible for evenly distributing the ore pulp or material to be screened onto the screen surface to ensure uniform screening.
Screen Frame: Serves as the supporting structure for the screen mesh, providing a stable framework to ensure the normal operation of the screen mesh.
Machine Frame: Offers overall support and fixation for the entire screening equipment, ensuring its stability during operation.
Suspension Springs: Connect the screen frame and the machine frame, playing a role in shock absorption and allowing the screen frame to vibrate freely.
Screen Mesh: The core part for material screening, with different mesh sizes available to meet different screening requirements.
Performance Advantages
High Screening Efficiency: Thanks to its high-frequency vibration, it can significantly improve the screening efficiency compared to conventional screens, especially for fine materials.
Large Handling Capacity: Can process a large amount of materials within a short time, meeting the needs of high-volume production. Low Powder Consumption: Usually adopts super elastic materials, which not only ensure the stability of the equipment but also help save power.
Less Clogging: The high-frequency vibration helps to prevent materials from clogging the screen mesh, reducing maintenance and improving the continuity of the screening process.
Good Separation Effect: It can effectively separate materials of different particle sizes, achieving accurate grading and improving the quality of the final product.
Processing Capacity and Applicable Materials
Processing Capacity: Varies according to different models and specifications. Common processing capacities range from tens to hundreds of tons per hour.
Applicable Materials: Widely used in screening and grading fine particles of various mineral ores, such as iron ore, tin ore, tungsten ore, tantalum ore, as well as dolomite sand. It is also suitable for materials in industries like coal, chemicals, food, pharmaceuticals, bricks, alkali, fertilizer, and paper.
Applications
Mineral Processing Industry: Used for classifying and screening ores after crushing and grinding to separate useful minerals from gangue and achieve the purpose of mineral enrichment. Coal Industry: Employed for dewatering and desliming coal slurry, improving the quality of coal products.
Chemical Industry: Helps in the screening and grading of chemical powders to ensure the uniformity and quality of products. Food and Pharmaceutical Industries: Used for screening and classifying food and pharmaceutical raw materials and products to meet different granularity requirements.
