Gravity analyzers and destoners are both mechanical devices used for material separation, widely applied in fields such as agricultural product processing. Here is a brief introduction to them:
* **Gravity Analyzer:** A gravity analyzer is a device that separates materials based on their specific gravity. It uses cyclones and vibration friction to act on the materials, causing the lighter raw materials to float on the surface of the material layer and flow downwards using gas, while the heavier materials sink to the bottom and move upwards, thus achieving separation by specific gravity. Gravity analyzers can be used to process various dry granular materials and can effectively remove lighter impurities, such as sprouted seeds and insect-infested grains from corn seeds.
* **Destoner:** A destoner is a device specifically designed to remove heavy impurities such as stones from materials. Gravity destoners are quite common. It utilizes the difference in density and suspension velocity between granular materials and minerals, using mechanical airflow and a reciprocating screen surface to separate the minerals from the granular materials. For example, destoners can be used for grading and destone removal of grains such as wheat, soybeans, and corn, and can also effectively remove light impurities. They can also be used for seed selection.
Both are core equipment in grain cleaning. The gravity separator focuses on “grading by specific gravity + removing light impurities/inferior grains,” while the destoner focuses on “precisely removing heavy impurities (stones),” working together to ensure grain purity and processing safety.
**Core Functions of the Gravity Separator:**
Separating light impurities: Removing impurities with a lower specific gravity from grains, such as dust, straw fragments, insect-damaged grains, and shriveled grains.
Screening high-quality grains: Grading by specific gravity differences, separating plump grains from unplump grains and sprouted grains, improving the overall quality of the grains.
Pre-treatment assistance: Reducing the burden on subsequent processing (such as milling and sorting), minimizing equipment wear, and improving the efficiency of subsequent processes.
**Core Functions of the Destoner:**
Precisely removing heavy impurities: Specifically removing heavy impurities with a specific gravity much greater than that of the grain, such as stones, mud, and metal particles.
Ensuring processing safety: Preventing stones from entering subsequent equipment (such as milling mills and rice mills), preventing equipment damage and material contamination.
**Core Functions of the Destoner:**
Precisely removing heavy impurities: Specifically removing heavy impurities with a specific gravity much greater than that of the grain, such as stones, mud, and metal particles.
**Ensuring Processing Safety:** Preventing stones from entering subsequent equipment (such as milling mills and rice mills), preventing equipment damage and material contamination. Improve product purity: Reduce hard impurities in grains to ensure the safety and taste of finished products (such as rice and flour).
Post time: Nov-17-2025
