Tech Team · Kintek Solution

The sieve shaker method is a widely used technique for determining the particle size distribution of granular materials. It works by separating particles into different size fractions using a stack of sieves with varying mesh sizes. The top sieve has the largest mesh size, while the bottom sieve has the smallest. The granular sample is placed on the top sieve, and the sieve shaker vibrates the stack, allowing particles to pass through the sieves according to their size. This method can simultaneously separate materials into 2 to 7 particle segments. The sieve shaker is suitable for analyzing a wide range of particle sizes, from coarse materials down to fine particles, with mesh sizes ranging from 4 mm to 38 microns. Additionally, special sieves can measure particles as small as 20 microns or less.

Key Points Explained:

1. Sieve Shaker Setup and Functionality:

   • The sieve shaker uses a stack of sieves arranged in descending order of mesh size, with the largest mesh at the top and the smallest at the bottom.
   • The granular sample is placed on the top sieve, and the shaker vibrates the stack to separate particles based on size.
   • This method can simultaneously separate materials into 2 to 7 distinct particle size segments.

2. Range of Particle Sizes Measurable:

   • The sieve shaker method is suitable for analyzing a wide range of particle sizes.
   • Standard test sieves can measure particle sizes from 125 mm (coarse materials) down to 20 microns (fine particles).
   • For even finer particles, special sieves with apertures less than 20 microns can be used.

3. Common Mesh Sizes and Sieve Diameters:

   • The mesh sizes of sieves typically range from 4 mm to 38 microns, covering a broad spectrum of granular materials.
   • Common sieve diameters include 75 mm, 100 mm, 200 mm, 300 mm, and 400 mm, which accommodate different sample volumes and analysis requirements.

4. Applications and Suitability:

   • The sieve shaker method is versatile and can be used for particle size analysis of various materials, including soils, aggregates, powders, and other granular substances.
   • It is particularly effective for coarse materials down to 150 microns.
   • The method can also be adapted for wet sieve analysis, where the material is dispersed in a liquid, provided the liquid does not affect the material's properties.

5. Limitations and Considerations:

   • The sieve shaker method is less effective for particles smaller than 20 microns, as standard sieves may not accurately capture such fine particles.
   • Specialized sieves or alternative methods (e.g., laser diffraction) may be required for ultra-fine particle analysis.
   • Proper calibration and maintenance of sieves are essential to ensure accurate results.

By understanding these key points, users can determine whether the sieve shaker method is appropriate for their specific granular sample and select the appropriate sieve sizes and diameters for accurate particle size analysis.

Summary Table:

Aspect	Details
Sieve Shaker Setup	Stack of sieves arranged by mesh size; top sieve has largest mesh.
Particle Size Range	Measures sizes from 125 mm (coarse) to 20 microns (fine); special sieves for <20 microns.
Common Mesh Sizes	4 mm to 38 microns; sieve diameters: 75 mm, 100 mm, 200 mm, 300 mm, 400 mm.
Applications	Suitable for soils, aggregates, powders; effective down to 150 microns.
Limitations	Less effective for particles <20 microns; requires calibration for accuracy.

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