What is a sieve?

A sieve is a tool or device that is used to separate solid particles or materials based on their size or texture. A typical sieve consists of a sheet of metal or cloth with small holes or openings of a specific size. The material to be sieved is usually poured over the surface of the sieve, and shaken so that the smaller particles fall through the holes, while the larger particles remain on top of the sieve. Sieves can be used for a variety of applications, such as in food processing, pharmaceuticals, construction, and agriculture. They can also be used to test the particle size distribution of a sample, in order to determine its quality or suitability for a particular use. There are different types of sieves, including hand-held sieves, rotary sieves, and vibratory sieves, which are used in different industries depending on the specific requirements of the application.