The horizontal decanter centrifuge bowl has a screw conveyor rotation which is slightly different in speed in decanter centrifuges. Through this method, continuous separation is achieved.It is used in various industries like wastewater treatment, food processing, separating sludge from industrial processes.
Tubular bowl centrifuges are characterized by the lengthier, narrow and cylindrical shape of the bowl that enhances high-speed rotation conducive to efficient separation.They have wide applications in separating solids from liquids, like purification of edible oils to rid impurities and refining lubricating oils and blood components in a medical laboratory.
The horizontal sedimentation decanter centrifuge is composed of a rotating drum with high speed, a screw and a differential with the same speed as the rotating drum and a slightly higher or lower speed than the rotating drum.
It is pushed through the blade on the screw pusher to the slag discharge port at the small end of the rotating drum, and the liquid phase is spilt through the overflow hole at the large end of the rotating drum.
This is repeated in order to achieve the purpose of continuous separation. Mainly used in industry.
Technical parameter
Principle of horizontal decanter centrifuge
The horizontal sedimentation decanter centrifuge is mainly composed of a high speed rotating drum, the same as the rotating drum and the rotating speed is slightly higher or slightly lower than the rotating drum and a differential. When the suspension to be separated enters the centrifuge drum, the high-speed rotating drum generates strong centrifugal force to settle the solid particles with higher density than the liquid phase to the inner wall of the drum. Due to the different speed of the spiral and the rotating drum, there is relative motion between the two (that is, the speed difference). The solid phase deposited in the inner wall of the rotating drum is pushed to the outlet of the small end of the rotating drum by the relative motion of the spiral and the rotating drum. The separated liquid is discharged from the other end of the centrifuge. The function of the differential (gear box) is to form a certain speed difference between the drum and the helix.
Centrifugal sedimentation is to add the mixture of solid and liquid in the cylindrical (or conical) rotor, due to the role of centrifugal force, the solid in the liquid settlement, the settlement of the material is further squeezed by the centrifugal force, extrusion of water, in order to achieve the purpose of solid and liquid separation.
Centrifugal sedimentation and gravity sedimentation are different: in gravity sedimentation, the acceleration of material sedimentation is equal to the acceleration of gravity and is a constant value; In centrifugal sedimentation, the centrifugal force depends on the radius of rotation of the particle movement, so when the angular velocity is equal, the centrifugal force is not the same for the moving particles at different radius of rotation.
Main features of horizontal sedimentation screw discharge centrifuge
◪Horizontal sedimentation screw discharge centrifuge has a wide range of applications, and can be widely used in chemical, petroleum, food,pharmaceutical, environmental protection and other needs. The field of liquid separation. It can complete the separation process of solid phase dehydration, liquid phase clarification, liquid-liquid-solid, liquid-solid-solid three-phase separation, particle size classification, etc.
◪The horizontal sedimentation screw discharge centrifuge has a large adaptability to the material, and can separate a wide range of solid phase particle size (0.0005~2mm), and can be separated as usual when the solid phase particle size is uneven.
◪Horizontal sedimentation screw discharge centrifuge can be automatic, continuous, long-term operation, easy maintenance, can be closed operation.
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Horizontal sedimentation screw discharge centrifuge single production capacity, compact structure, small footprint, low operating costs.
◪The solid phase sediment content of the horizontal sedimentation screw discharge centrifuge is generally higher than that of the filter centrifuge, and is roughly close to the vacuum filter.
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However, the solid phase sediment washing effect of horizontal sedimentation screw discharge centrifuge is not good.
Horizontal decanter centrifuge is mainly used
1. Separating and dewatering industrial and domestic sewage
2, Starch washing, classification, dehydration
3. Dehydration of soybean and wheat protein
4, Fish meal, fish dehydration
5. Dewatering wine lees
6, Juice purification and pulp fiber dehydration
7, Separation and purification of vegetable oil
8. Separation and purification of coal tar
9, Kaolin, graphite classification and dehydration
10. Classifying and dewatering dyes and pigments
Exhibition
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