Separation by settling and centrifugal force

Nov. 4, 2012 - PRLog -- Using vibrating screens to remove drilled solids from mud uses only one characteristic of solids particles— their size. Another factor which affects separation is particle density. Solids control devices which take advantage of both particle size and particle density speed up the settling process by application of centrifugal force. http://www.gnsolidscontrol.com/ These devices utilize Stoke’s Law as the basis for their operation. Stoke’s Law defines the relationship of factors governing the settling velocity of particles in a liquid. This relationship may be stated in its simplest form as: 1. Larger particles (of the same density) settle more rapidly than smaller ones. 2. High density solids settle more quickly than low density ones. 3. High acceleration and low viscosity speed up the settling rate. Settling pits, hydrocyclones, and centrifuges all utilize this principle in their operation. Settling pits simply use the force of gravity to separate solids. The larger and/or heavier a solid is, the faster it will settle through fluid in a settling pit. There is no way to speed up this natural settling process other than reducing the viscosity of the fluid, or flocculating the solid particles with the addition of chemicals. Settling pits are often large and require closure or remediation. The reduction in waste mud achieved through efficient solids control greatly reduces the waste water remediation treatment costs. For more information, please contact GN Solids Control. Using vibrating screens to remove drilled solids from mud uses only one characteristic of solids particles— their size. Another factor which affects separation is particle density. Solids control devices which take advantage of both particle size and particle density speed up the settling process by application of centrifugal force. These devices utilize Stoke’s Law as the basis for their operation. Stoke’s Law defines the relationship of factors governing the settling velocity of particles in a liquid. This relationship may be stated in its simplest form as: 1. Larger particles (of the same density) settle more rapidly than smaller ones. 2. High density solids settle more quickly than low density ones. 3. High acceleration and low viscosity speed up the settling rate. Settling pits, hydrocyclones, and centrifuges all utilize this principle in their operation. Settling pits simply use the force of gravity to separate solids. The larger and/or heavier a solid is, the faster it will settle through fluid in a settling pit. There is no way to speed up this natural settling process other than reducing the viscosity of the fluid, or flocculating the solid particles with the addition of chemicals. Settling pits are often large and require closure or remediation. The reduction in waste mud achieved through efficient solids control greatly reduces the waste water remediation treatment costs. For more info, please contact GN Solids Control http://www.gnsolidscontrol.com/