Sanitary Self-Cleaning Disc Stack Centrifuge for Egg Liquid Clarification

Product Overview

Egg deep processing enterprises face persistent troubles in raw liquid pretreatment: fresh egg liquid contains eggshell fragments, denatured protein flocs, fiber impurities and lipid colloids. Static sedimentation requires long standing time, takes up massive tank space and causes heavy egg liquid loss trapped in residues; plate-frame filtration needs frequent replacement of filter cloths, which easily triggers secondary microbial pollution and unstable batch quality.

Our food-grade self-cleaning disc stack centrifuge is tailor-made for egg liquid clarification, relying on high-speed centrifugal density difference separation to realize continuous automatic slag discharge without shutdown. It rapidly removes solid impurities in egg liquid in a fully closed low-temperature environment, reduces the impurity load of subsequent ultrafiltration membrane systems, extends membrane service life, and improves the recovery rate of egg white protein. Matched with the egg white ultrafiltration concentration unit, it forms a complete set of egg liquid separation and concentration production line, a core pretreatment equipment for modern egg processing factories.

Working Principle

After crude filtration, mixed egg liquid enters the rotary drum from the central feeding port. High-speed rotation generates powerful centrifugal force. High-density solid impurities such as egg shell crumbs and precipitated protein are thrown to the inner wall of the drum, while light clarified egg liquid moves to the center through gaps between multi-layer inclined disc stacks.

The machine adopts automatic timing slag discharge structure. When solid impurities accumulate to the set threshold, the hydraulic valve opens instantly to discharge residues fully automatically without stopping feeding. The whole separation process operates in a sealed stainless steel cavity, isolating air contact to prevent protein oxidation and bacterial reproduction, and effectively retain the natural activity of egg liquid.

Core Sanitary Configuration

1. All material contact parts: mirror polished 304 stainless steel, fully compliant with food GMP standards, support full CIP online acid-base cleaning and high-temperature sterilization.

2. Dual-frequency variable speed drive system: freely adjust rotating speed and feeding flow, adapt to egg liquid with different impurity content.

3. Low-shear feeding structure: avoid egg liquid emulsification during separation, minimize protein loss.

4. Independent residue outlet and clarified liquid outlet, equipped with online sampling ports for real-time turbidity detection.

5. PLC intelligent control cabinet: set slag discharge interval, automatic fault alarm, unattended continuous operation.

6. Built-in vibration protection, over-temperature and over-current safety interlock, meet CE safety certification requirements.

Five Major Core Advantages

1. Continuous automatic slag discharge, high production efficiency

   No need to stop the machine to clean slag, realize 24-hour uninterrupted continuous production. The separation process only takes several minutes, replacing the static sedimentation process that takes several days, greatly reducing the number of intermediate storage tanks and saving workshop construction investment.

2. Greatly reduce membrane pollution and cut operation cost

   More than 90% of solid impurities in egg liquid are removed in the front end, significantly slowing down the pollution speed of the rear ultrafiltration membrane components, extending the service life of membrane elements, and reducing the frequency of daily CIP cleaning and membrane replacement cost.

3. Low protein loss, improve raw material utilization rate

   Compared with filter press and sedimentation tank, the automatic slag discharge structure reduces the wrapping of egg liquid in solid residues, and the overall yield of egg protein increases by 2%–3%. Separated egg shell residues can be recycled as feed raw materials to realize full resource utilization of by-products.

4. Full closed hygienic design, stable product quality

   Totally sealed operation avoids manual contact and secondary pollution. The clarified egg liquid has uniform turbidity, consistent quality of each batch, effectively avoiding the problem of finished egg white powder precipitation during shelf life.

5. Perfect matching with ultrafiltration concentration system

   The clarified egg liquid can be directly transported to the cross-flow ultrafiltration system through sealed pipelines without intermediate transfer. The two units work together to complete impurity removal + low-temperature concentration integrated processing, forming a streamlined automatic production line.

Standard Process Flow for Egg Liquid Treatment

1. Raw egg liquid pre-filtration: remove large egg shell fragments through coarse filter;

2. Centrifugal clarification: feed into disc stack centrifuge, solid residues are automatically discharged at regular intervals, clarified pure egg liquid flows out;

3. Pipeline conveying: sterile egg liquid is directly sent to the ultrafiltration membrane circulation system for low-temperature concentration;

4. Residue recycling: separated egg shell and protein residues are collected and reused for feed processing;

5. CIP integrated cleaning: after daily production, the centrifuge drum, internal disc stacks and pipelines are cleaned synchronously with the membrane system to remove protein dirt.

Typical Application Scenarios

• Full-automatic egg white powder production line front-end clarification procedure

• Purification of mixed egg liquid, whole egg liquid and egg yolk enzymolysis liquid

• Supporting pretreatment equipment for medium and large egg deep processing plants

• Matching separation equipment for laboratory small-scale egg liquid research projects

One-Stop Supporting Service

Our company independently develops and manufactures disc stack centrifuges and ultrafiltration membrane concentration systems at the same time. We provide integrated overall solutions for egg processing production lines:

1. Customize equipment models and processing capacity according to daily egg liquid output and workshop layout;

2. Provide complete tender materials: equipment datasheets, test reports, CE certificates and technical compliance forms;

3. Unified contract, centralized delivery, on-site installation, commissioning and process parameter optimization;

4. Professional operation training and unified 24-month after-sales warranty for all supporting equipment;

5. Long-term stable supply of wearing parts such as disc stacks, sealing rings and membrane components.

Conclusion

Against the background of the global pursuit of clean-label high-protein egg raw materials and low-carbon food manufacturing, sanitary self-cleaning disc stack centrifuges have become essential pretreatment equipment for egg processing lines. It solves the pain points of low efficiency, high material loss and unstable hygiene of traditional clarification processes. When combined with ultrafiltration membrane concentration equipment, it can maximize production efficiency and product added value, with wide application prospects in the global poultry egg deep processing industry.