Introduction to injection limited bottom method angle of repose (angle of repose) testing instrument

Dust resting angle (or resting angle) refers to the acute angle between the inclined plane of dust accumulation and the horizontal plane at the bottom.

The injection limited bottom method angle of repose tester is designed and produced in accordance with the national standard GB/T 16913.5-1997 (this standard refers to ISO 4324:1997 Powder and Particle Surfactants - Determination of Angle of repose). The applicable measurement object of this device is dust, and the dust resting angle is measured using the injection limited bottom method. The main technical difference from ISO 4324:1997 is that it does not measure the height of dust accumulated on the limited bottom surface, but directly measures the dust resting angle using a protractor.

Principle of injection limited bottom method angle of repose (angle of repose) tester instrument

Inject enough dust from the funnel into the horizontal tray to fill it up; Measure the acute angle between the inclined plane of dust accumulation and the horizontal plane at the bottom, which is the dust resting angle.

2. Instrument structure (the entire equipment is made of 304 stainless steel)

2.1 Funnel (outlet diameter 5mm)

The funnel taper is 60 º ± 0.5 º;

2.2 Angular protractor

Measuring protractor 10cm;

2.3 Chassis

The distance between the bottom of the outlet and the disc surface is 80mm ± 2mm, and the diameter of the material disc is Φ 80mm.

2.4 Repetitive error ≤ 1%