The solid-wall bowl has a cylindrical section for efficient separation and clarification of the liquid. The product enters the
decanter through the feed tube and passes through the distributor into the centrifugation space. The liquid level in the bowl is adjustable via regulating plates. Due to the centrifugal forces, the solid particles are forced to the bowl wall and are transported by the decanter scroll to the solids outlet.The liquids are separated in the separation zone And discharge

Soy protein isolate is the most concentrated form of low-fat, high-protein nutrition currently available, and is in great demand.The most hygienic and efficient way to process soy protein isolate is with Food decanter centrifuges from Shenzhou.

High-efficiency process flow chart - soy protein isolate

as the starting material, the protein is first dissolved in water. The resulting solution is then separated from the solid
residue. Finally, the protein is precipitated from the solution, and then separated and dried.
solution. This protein-rich solution must then be separated from the solid matter (known as okara). A traditional configuration for doing this features extraction consisting of vibrating and rotary screens, followed by optional purification and concentration.
Model | Diameter(mm) | Lenght(mm) | Max speed | L/D ratio | G-force | Capacity(m3/h) | Main motor power(Kw) | Weight(kg) | Dimension (mm) |
LW250*1000 | 250 | 1000 | 5000 | 4 | 2722 | 0.5-5 | 7.5 | 950 | 2120*1250*680 |
LW300*900 | 300 | 900 | 4200 | 3 | 2964 | 1-6 | 11 | 1160 | 2150*1300*900 |
LW300*1200 | 300 | 1200 | 4000 | 4 | 2784 | 2-6 | 11 | 1350 | 2450*1300*900 |
LW355*1160 | 355 | 1160 | 3600 | 3.3 | 2576 | 2-8 | 15 | 1400 | 2470*1350*830 |
LW355*1460 | 355 | 1460 | 3600 | 4 | 2576 | 2-10 | 15 | 1800 | 2750*1350*830 |
LW400*1200 | 400 | 1200 | 3200 | 3 | 2294 | 3-12 | 18.5 | 1800 | 2730*1600*1080 |
LW400*1600 | 400 | 1600 | 3000 | 4 | 2016 | 3-15 | 22 | 2000 | 3130*1600*1080 |
LW450*1800 | 450 | 1800 | 2800 | 4 | 1976 | 4-25 | 37 | 2500 | 3320*1700*1130 |
LW500*2000 | 500 | 2000 | 2800 | 4 | 1750 | 5-35 | 45 | 4000 | 3520*1800*1170 |
LW530*1855 | 530 | 1855 | 2600 | 3.5 | 2006 | 5-38 | 55 | 4680 | 3885*1350*1600 |
LW530*2120 | 530 | 2120 | 2400 | 4 | 1709 | 5-40 | 55 | 4800 | 4150*1350*1600 |
LW550*2000 | 550 | 2000 | 2800 | 4 | 2412 | 6-40 | 55 | 5700 | 4570*1380*1600 |
LW650*1950 | 650 | 1950 | 2200 | 3 | 1761 | 6-45 | 75 | 5000 | 4840*1510*1720 |
LW650*2600 | 650 | 2600 | 2200 | 4 | 1456 | 6-65 | 90 | 6000 | 5490*1510*1720 |
LW720*2160 | 720 | 2160 | 2200 | 3 | 1612 | 7-80 | 120 | 6000 | 5200*1600*1800 |






The feed product is pumped into the decanter centrifuges through the inlet. Feed goes into a horizontal bowl, which rotates. The bowl has is composed of a cylindrical part and a conical part. The separation takes place in the cylindrical part of the bowl. The fast rotation generates centrifugal forces up to 4000 x g. Under these forces, the solid particles with higher density are collected and compacted on the wall of the bowl. A scroll (also screw or screw conveyor) rotates inside the bowl at a slightly different speed. This speed difference is called the differential speed. This way the scroll is transporting the settled particles along the cylindrical part of the bowl and up to the end conical part of the bowl. At the smallest end of the conical part of the bowl, the dewatered solids leave the bowl via discharge opening. The clarified liquid leaves through a paring disc (internal centripetal pump).
3-phase separation with a decanter
Typical applications of 3-phase separation are the production of edible oils such as olive oil, oil sludge processing, the
production of biodiesel etc.
Parameters and influencing factors of the separation
Decanter Centrifuges Acceleration
The separation medium reaches its maximum speed in the decanter bowl, causing the solids to settle on the bowl inner diameter. A characteristic feature of the bowl is its cylindrical/conical shape.
Differential speed
Filling volume / Weir discs or overflow weir
The clarified liquid flows to the cylindrical end of the bowl in the decanter centrifuge, from where it runs out through openings in the bowl cover. These openings contain precisely adjustable weir discs/weir plates by means of which the pond depth in the bowl can be set. The weir discs determine the filling volume of the bowl.
Advantages and limitations over competitive processes
Generally the decanter centrifuge has more advantages than disadvantages; however, there are some limitations when compared to other processes.
Decanter Centrifuges Advantages:
* Decanter centrifuges have a clean appearance and have little to no odor problems.
* Not only is the device easy to install and fast at starting up and shutting down but also only requires a small area for
operation compared to other competitive processes.
* The decanter centrifuge is versatile as different lengths of the cylindrical bowl section and the cone angle can be selected for different applications. Also, the system can be pre-programmed with various design curves to predict the sludge type, while some competitive processes, such as a belt filter press, cannot change the belt type to operate for different sludge types. Its versatility allows the machine to have various functions such as operating for thickening or dewatering.
* The machine can operate with a higher throughput capacity than smaller machines. This also reduces the number of units required.
* The device is simple to optimize and operate as it has few major variables and reliable feedback information.
* The decanter centrifuge has reduced labor costs compared to other processes, as it requires low continuous maintenance and operator attention.
* Compared to some competitive process such as the belt filter process, the decanter centrifuge has more process flexibility and higher levels of performance.
Decanter Centrifuges Limitations:
* The decanter centrifuges cannot separate biological solids with very small density differences, such as cells and viruses. A competitive process that is capable of separating these difficult-to-separate solids is the tubular-bowl centrifuge.
* The machine can be very noisy and can cause vibration.
* The device has a high-energy consumption due to high G-forces.
* The decanter centrifuge has high equipment capital costs. Hard surfacing and abrasion protection materials are required for the scroll to reduce wear and therefore reduce the maintenance of the scroll wear.














