Gravity settling field flow separatorBy utilizing the combined effect of gravity and flow fields, particulate matter is separated in a fluid according to its size, shape, or density characteristics. In the separation channel, particles will settle downwards under the action of gravity, while the flow of fluid will cause particles to move forward with the fluid. Particles of different sizes, shapes, or densities have different settling velocities and motion trajectories in the fluid, thus achieving separation.

Technical advantages:

1. Non fixed phase design: avoids sample adsorption or shear force damage, suitable for analysis of biomolecules and nanomaterials.

2. High precision particle size analysis: There is a significant relationship between settling velocity and the square of particle size, which can distinguish small differences in particle size (such as 1 nm to several hundred micrometers).

3. Mild separation conditions: No high temperature or high pressure required, preserving sample integrity.

This device adopts a separation channel design, with a simple separation channel structure. Common types include straight, curved, and spiral to ensure stable fluid flow. The channel size should be reasonably selected based on the size and density of the particles to be separated, with a width and height slightly larger than the particle diameter and a moderate length. The surface of the channel is smooth, and the inlet and outlet are designed in a smooth shape to reduce particle adsorption and blockage.

　　Gravity settling field flow separatorIt can be applied to many different industries and fields such as chemistry, biomedicine, environmental science, materials science, etc. For example, it has applications in ore screening in the mining industry, screening and screening in the archaeological industry, and the re separation and preparation of micron sized catalyst particles.