ZK protein decanter for the protein production process can be used to wash, extract, concentrate, and clarify proteins. In producing protein powder, to improve the production efficiency and extraction rate as much as possible, ZK food-grade protein centrifuges are more and more applied to the production process line, playing an increasingly important role in the production process.

1. 4k
4k
ZK SEPARATION
Address: No. 1355, Longgong South Road, National Economic and
Technological Development Zone, Chengdu, Sichuan, China
Tel: 86-28-88434038; Fax: 86-28-88430918
Cellphone/Wechat: +86-13882202428
E-mail: sale@westernpetro.net
Skype: Leihonghermes
CHENGDU ZK SEPARATION TECHNOLOGY CO., LTD.

2. I. BASIC INFORMATION
II. TECHNICAL CHARACTERISTICS OF
HIGH-EFFICIENCY PROTEIN CENTRIFUGE
Plant protein is extracted from soybeans, peas, and the like via a common acid-salt extraction process. In addition to its nutritional value, plant
protein has many important functional properties. In the process of producing protein powder, to increase the output and the extraction rate as much
as possible, an increasing number of centrifuges are used in the production line. [ZK Separation] high-speed centrifuge (separation factor ≥ 3500G)
in the production process plays an irreplaceable important role.
HIGH RIGIDITY SCREW ROTOR
Centrifuge is a typical double-rotor differential high-speed rotating device. Its separation factor in the protein industry is up to 3500G, which is
the feature of a high-speed centrifuge. The rigidity of the rotor and the control of the unbalance amount are important factors for the stability of
operation. [ZK Separation] centrifuge is designed in strict accordance with JB/T 8051-2008 Centrifuge Drum Strength Calculation Specifications.
The screw rotor (flexible in high speed state) is put under finite element modal analysis, so that the working speed is far from the first-order and the
second-order critical speed to avoid the occurrence of resonance at high speed, ensuring the bearing service life and lowering vibration and noise.
BUBBLE BREAKER
At the acid-sinking section, the high-speed centrifuge will produce a large amount of bubbles in the
separation and liquid discharging processes. If the bubble is not broken, it is easy to to take out protein.
[ZK Separation] centrifuge is internally set with a bubble breaker, which plays a good role.
DISCHARGE DEVICE FOR CENTRIPETAL PUMP WITH PRESSURE
The bubble generated during the draining process of the centrifuge is easy to block the drain pipe,
causing the fluctuation in the operating current of the centrifuge. [ZK Separation] centrifuge is internally
provided with a discharge device for centrifugal pump with pressure to avoid the supernatant being ejected
at high speed. The device is particularly suitable for the condition that the liquid phase is directly input into
the next section or the next working condition of equipment after separation. For example, in the protein
separating process, the soybean milk after first and second extraction enters the acid precipitation tank,
and if this device is used, the intermediate transition tank, the transfer pump, and related pipes and
instruments are needless.
Sanitation plan (CIP system)
The centrifuge control system is arranged with a fully automatic cleaning procedure. The multi-step mode of high-speed cleaning→low-speed
cleaning (multi-stage)→high-speed multi-level cleaning ensures that it is thoroughly washed per mechanical cleaning. To avoid human factors, a
360° high-pressure cleaning nozzle is used for the hood, the inner cavity of the base, and the outer surface of the drum.
COMMONLY USED PROCESS FLOW
Water: soybean flake = 10-16:1
Defatted
soybean
flake
Grinding Mixing drum
High speed
centrifuge
Acid pH 5
High speed
centrifuge
Soybean
milk
Mixing drum
Soybean dregs
Mixing drum
High speed
centrifuge
Soybean
milk
Soybean
dregs
Lye PH7~9 Add water and lye pH 7~9
COMMONLY USED PROCESS FLOW
III. PARAMETER TABLE OF HIGH-SPEED
CENTRIFUGE FOR PROTEIN SEPARATION
Centrifuge
Model
Bowl
Diameter
Mm
Length-
Diameter
Ratio
Mm
Speed
Rpm
Separation
factor
Differential
speed
rpm
Main moter
power
kW
Back
motor power
kW
Capacity
3
m /h
Weight
kg
Dimension mm
(L× W × H)
Note: If the liquid phase is discharged by the built-in centrifugal pump with pressure, the overall dimensions differ from the technical table, please
contact ZK Separation.
IV. SOYBEAN PRODUCT HIGH-SPEED CENTRIFUGE
PARAMETER TABLE
In the industry of soybean products, high-efficiency fully-enclosed high-speed centrifuges are gradually bringing technological innovation in the
soybean production line and replacing conventional filter-type equipment. Soybean hulls (similar to medium density) are hard to be removed by common
centrifuges. To this end, [ZK Separation] has developed a floating object trap to solve the problem and make the separated soybean milk meet the process
production requirements.
Centrifuge model Bowl diameter
mm
Length-
diameter
ratio
mm
Speed
Rpm
Separation
factor
Differential
speed
rpm
Main moter
power
kW
Back
motor power
kW
Capacity
m3/h
Weight
kg
Dimension mm
(L× W × H)
Note: The capacity is related to material characteristics;
Control method: ① direct control using an inverter (double-motor double-frequency conversion mode); ② PLO+ touch screen control (intelligent
control mode);
Material: AISI321, AISI316, AISI316L SAF2205, etc.
Safety protection: devices for measuring vibration and temperature, emergency stop button, and measures to prevent faulty operation such as hood
not being covered.
ZK SEPARATION
CHENGDU ZK SEPARATION TECHNOLOGY CO., LTD.