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What industry is the decanter centrifuge used for? Decanter centrifuge working principleļ¼Centrifuges are useful in most industries where solids, liquids, and gases are mixed into a single substance, but separating the components is necessary. For example, decanters (also known as solid bowl centrifuges) continuously separate solids from liquids in slurries and therefore play an essential role in wastewater treatment, chemical, petroleum, and food processing industries. The basic principle of a decanter centrifuge relies on buoyant separation. The denser ingredients will fall to the bottom of the mixture while the less dense ones are suspended above. Due to a large centrifugal force, decanters rotate to separate the substances inside quickly. Before decanters were used, components took hours to settle, but a decanter centrifuge can take only a few seconds.
Hybrid drive system. The use of a drive system with a frequency converter allows for stepless adjustment of the drum speed during operation, and the spiral differential speed also changes accordingly with the drum speed. When the machine is shut down, different speeds can also be achieved by swapping different sets of pulleys. The use of a hydraulic drive system to drive the screw allows for stepless adjustment of the differential speed during operation, and the hydraulic oil directly corresponds to the torque of the screw drive, that is, it is proportional to the material settling inside the rotary drum. This interconnection system is a closed-loop control system that can independently control the spiral differential speed according to the requirements of solid conveying settling inside the rotary drum. If the torque increases, the differential speed of the spiral also increases proportionally, while the speed of the rotary drum can remain constant (thereby keeping the solid dryness discharged from the rotary drum constant).
The fundamental principles of operation for the 2 phase decanter centrifuge and 3-phase Shenzhou Machinery decanter centrifuges are identical to those of the horizontal decanter centrifuge. To separate substances with different densities, the equipment uses a high-speed rotating assembly to create an acceleration inside the bowl that is thousands of times stronger than gravity. Then, the relative motion between the bowl and the screw is generated by the differential gearbox, allowing for the separation of the substances. In contrast, 3 phase decanter centrifuges use centripetal pump technology to achieve solid-liquid-liquid three-phase separation, as opposed to Shenzhou Machinery 2-phase centrifuges, which are utilized for solid-liquid two-phase separation and discharge the solid slag and separation liquid from an opening at the bottom of the equipment collection box. Under the pressure of the centripetal pump, the heavy liquid phase is discharged through the flow outlet on the impeller. In contrast, gravity sends the solid slag and light liquid phase down from the bottom opening of the equipment collection box.
The full name of the decanter centrifuge is the horizontal screw decanter centrifuge, which is a widely used equipment in the field of industrial solid-liquid separation. According to the characteristics of different materials in different industries, Decanter centrifuge is divided into dewatering, separation, and clarifying decanter centrifuge. With centripetal pump technology, decanter centrifuge can also realize the 3-phase separation of liquid, liquid, and solids or two liquid phase separation. Decanter centrifuge can separate over 50%(v/v) solids from liquids on a continuous basis.Typical industrial decanter applications include Crude oil tank bottoms ,waste oil industrial,wastewater,sludge Decantering,Fish meal,WVO/UVO Desludging,Paint sludge ,Etc. If you are looking for a decanter centrifuge manufacturer, Shenzhou Machinery is your best choice. Discover even more details on lnszjx.com.
Rotary drum diameter. The diameter of the Decanter centrifuge is 180-920mm, which means that the theoretical volume separation range is 1:130 when the diameter to length ratio is the same. The diameter of a Decanter centrifuge cannot increase indefinitely, because as the diameter increases, the allowable speed will decrease due to the decrease in material strength, resulting in a corresponding decrease in centrifugal force. From an economic perspective, it is not possible to increase the flow rate of a Decanter centrifuge by increasing its diameter. The ratio of drum diameter to length. In the past, the aspect ratio remained at 1:2, but now it can reach 1:3 or 1:4 (or even higher). The diameter to length ratio has an impact on the residence time of materials in the clarification zone, as it determines the volumetric flow rate of the centrifuge. The diameter to length ratio does not have a significant impact on the solid flow rate, but it has an impact on the moisture content of the mud cake.