[Nantong University] Settling Particle Sorter
The Settling Particle Sorter is an innovative device designed to automatically separate particles of different sizes based on their settling velocity in water. This process follows Stokes' Law, which states that the sedimentation rate of a particle in a fluid depends on its size, density, and the viscosity of the liquid at a given temperature. By controlling the settling time, the instrument can efficiently extract particles of specific sizes from a sample. The device operates through a series of automated steps. First, the power is turned on, and a pre-treated sediment sample is placed into a tall beaker. Once the start button is pressed, the water timer activates the solenoid valve, allowing purified water to flow into the beaker via a latex tube. The water level is carefully controlled by the timer, after which the solenoid valve closes. An air compressor is then activated, and the stirring timer triggers a lifting cylinder that moves a stirring rod up and down, ensuring the sediment and water are thoroughly mixed. After mixing, the stirring rod is lifted above the water surface. Once the mixing is complete, the sedimentation timer begins. Over a period of 4 to 8 hours, the particles settle according to their size. After this time, the water absorption timer activates a diaphragm vacuum pump, which draws a 5 cm deep water sample containing specific particle sizes from the beaker through a latex tube into a collection beaker. This process is repeated until the sample becomes clear, indicating that the desired particle size has been effectively separated. The watering timer then opens the solenoid valve again to refill the beaker with fresh water, and the cycle continues. This instrument significantly reduces the time and effort required for manual sediment separation, making it an essential tool for geoscience researchers. It offers a more efficient, accurate, and standardized method for particle size analysis compared to traditional techniques. The Settling Particle Sorter is ideal for use in university and research laboratory settings, particularly in fields such as geology, soil science, ecology, and environmental science. Its practicality and reliability make it a valuable asset in modern scientific research. Title of the Work: Settling Particle Sorter Developed by: School of Geographical Science, Nantong University, Jiangsu Province Standing Desk electric adjustable height has become very popular. This series of standing desks are very easy to use and suitable for people who work from home. A good Electric Standing Desk can minimize the harmful effects of sitting too long for bodies. Standing Desk Electric, Electric Standing Desk, Electric Height Adjustable Stand Desk, Standing Desk Electric Height Adjustable Foshan Hollin Furniture Co.,Ltd , https://www.china-hollin.com
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