Soil Particle Analyzer

Product Introduction

1. The soil aggregate structure plays an important role in soil fertility. A good granular structure should generally possess three properties: having a certain size, and being too large or too small is not conducive to forming an appropriate proportion of pores; Having multi-level pores, large pores are breathable and permeable, while small pores retain water and nutrients; Has certain stability, including water stability, mechanical stability, and biological stability. Good aggregate structure is the foundation of soil fertility, and the relationship between aggregate structure and soil fertility is mainly manifested in the following aspects: regulating the contradiction between soil moisture and air; Coordinate the contradiction between the consumption and accumulation of soil nutrients; Stabilize soil temperature and regulate soil thermal conditions; Improving soil fertility is beneficial for the extension of crop roots. The soil particle analyzer is suitable for analyzing aggregates in soil, environmental, geological and other laboratory experiments.

2. Method principle

After dry screening the air dried samples, determine the particle distribution under a certain mechanical stability. Then, mix the particle distribution obtained by the dry screening method in the corresponding proportion and wet it in water to determine the quantity and distribution of water stable macroaggregates.

Terminology and definitions

1. Soil aggregates

The total amount of aggregates in soil that vary in size, shape, porosity, mechanical stability, and water stability. It is composed of soil primary particles that are interconnected through the aggregation, cementation, and bonding of colloids.

2. Soil macroaggregates

Aggregates with a diameter of 0.25mm~10m in soil are called soil macroaggregates

3. Soil water stable macroaggregates

It is a large aggregate of soil particles bonded together by organic matter such as calcium and magnesium, mycelium, etc., which is not easily disintegrated by shaking, soaking, and washing in water, but still maintains its original structure.

Instrument features

1. The structure mainly consists of a speed regulator, reduction gear, and balance frame, with small volume, light weight, and no noise;

2. Beautiful appearance, equipped with automatic parking device, safety emergency stop device, leakage protection and other safety devices;

3. Advanced structure, good performance, convenient and flexible use of jacketed screen.

Technical parameters

1. Host: 500mm in length, 500mm in width, and 890mm in height

2. Stainless steel bucket: 330mm (diameter) * 430mm (height)

3. Standard sieve: 200mm (diameter) * 50mm (height)

4. Standard sieve aperture: 10mm, 7mm, 5mm, 3mm, 2mm, 1mm, 0.5mm, 0.25mm. (Other specifications of aperture are optional)

5. Emergency stop switch: dual control

6. Digital speed controller: display speed, adjust speed

7. Motor speed: 1400rpm

8. Vibration frequency: 0-56 times/minute

9. Vibration amplitude: 30mm, 40mm, 50mm customizable (default 50mm)

10. Digital timer timing

11. Timing range: 0~9999 minutes

12. Power supply: 220V 50Hz 120W

13. Leakage protector: 10A

Instrument configuration

1. 1 host

2. 4 stainless steel water buckets

3. One oscillation frame

4. 4 hangers

5. 4 sets of sieves (aperture: 10mm, 7mm, 5mm, 3mm, 2mm, 1mm, 0.5mm, 0.25mm)

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