What are the Applications of Vibrating Screen in the Grain Industry?
Vibrating Screen play a vital role in the grain industry. They are essential equipment for grain processing, cleaning, and decomposition. Their efficient screening capabilities, relatively simple structure, and ease of operation and maintenance make them widely used in the following areas.
1. Initial processing of raw grains:
- Removing large impurities: After harvest, grain often contains large impurities such as straw, corn cobs, twine, clods of earth, and stones. Circular vibrating screens equipped with larger mesh sizes can effectively remove these impurities, laying the foundation for subsequent processing.
- Removing small impurities: The screened material also contains fine impurities such as dust, fine sand, crushed particles, and small stones. These impurities can be separated through different levels of mesh.
2. Impurity removal and classification:
- Removing side-by-side impurities: Impurities with similar particle size to the grain but different specific gravity or shape are removed. Effective separation can be achieved by adjusting the mesh size and vibration parameters.
- Grading by particle size: Grains are graded according to particle size.
3. Screening and Selection:
Removal of foreign grains: Removes contaminants from other grain varieties when specific grains are highly demanded.
4. Post-Polishing Processing:
After polishing rice/grains: Removes fine particles and powder generated during the polishing process, resulting in a smooth surface finish and improved product appearance.
5. Flour Screening:
Flour screening: Before packaging, a very fine mesh screen is used to remove lumps, insect eggs, trace impurities, or cellulose from the flour, ensuring a fine and uniform flour.
6. Oilseed Crop Pretreatment:
Cleaning removes impurities such as stems, leaves, stones, clods of soil, empty shells, and moldy kernels, and performs size grading in preparation for subsequent shelling, pressing, or leaching.
Advantages of Vibrating Screens in the Grain Industry:
- High-Efficiency Screening: Vibration disperses the material thoroughly on the screen surface, causing it to rotate and move forward, resulting in high screening efficiency.
- Relatively simple structure and easy maintenance: Core components are easily inspected and replaced. Good sealing: The equipment is typically designed with a sealed structure to reduce dust leakage.
- Flexible screen selection: Screens of varying materials and apertures can be quickly replaced to suit different materials and screening requirements.
- Versatility: By configuring screens with varying numbers of layers and apertures, a single device can simultaneously perform multiple screening stages.
Vibrating screens are essential equipment throughout the entire grain processing chain, playing an irreplaceable role from initial raw material cleaning and impurity removal to intermediate grading and screening, and finally to the fine screening and inspection of the final product.
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Nina
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