What is the gravitational department?

Gravity separation is a method of division of suspension into its individual components. It is usually used in the medical environment to separate red blood cells from plasma and in the metallurgical industry to separate particles of various metals. Effective separation relies on different density and size of particles and works by combining gravitational forces with movement resistance. The finished concentration is the ratio of the difference between the density of the heavier particles and the liquid, to the difference between the density of lighter particles and the liquid:

concentration = DH - DF/DL - df

There are many ways to achieve gravivity, static separation, and jigging and jigging. For all methods, the correct water balance in suspension is important to ensure efficient separation and fluid must be without slime, which increases viscosity and prevents the movement of particles. For the most effective gravitational separation, particle sizes should be relatively close, with very small or very large particles.

The static method is gravitational separation on the purest and relies only on gravity to achieve separation. The suspension is upset and then left completely undisturbed. As the mixture settles, larger denser particles come to rest first and settle on the bottom of the container. Another largest and densest particles settled above and create a clear layer. The process continues until all particles are seated in their appropriate layers, with smaller, lighter particles at the top. All methods of gravitational separation work in this way, but differ in mechanisms applied to facilitate separation and accelerate the process.

Centrifugation is a method of separation most commonly used in medical environments, but is also sometimes used in multi -contemporaized metallurgical operations, where there are small amounts and larger particles. In the case of blood, the sample is injected into a glass tube with a rubber tip and is placed in a centrifugal centrifugal balance as soon as it is knocked down. Centrifugation can rotate at very high speeds, producing centrifugal forces that push the particles down the liquid until they get into the compact mass at the bottom of the tube. Some tubes contain a gel separator, which is heavier than plasma, but lighter than blood cells, and forms a barrier to prevent re -mixing after centrifugation.

jigging is an older but still effective technique of gravity that achieves separation of 150 micrometers. The most basic mechanism of jigging includes the location of a substance to be separated at the top of "ragging", such as ball bearings, in the water chamber. The rageker layer is on a perforated sheet on the top of another chamber that sends alternating suction and pulses through Ogrging to the top. Pulses rattles ogging and create space for heavier particles that would fall, and suction causes them to collect in the lower chamber. Lighter particles are washed from the surface by a constant flow of water through the substance in question and are collected in a separate container.