Fish Skin and Bone Powder Production Line: From Raw Materials to Finished Product

1. Raw Material Pretreatment

• Cleaning:
  Raw fish skin and bones are thoroughly cleaned to remove impurities, blood, and surface dirt. This can be achieved through flowing water rinsing or immersion cleaning, ensuring the elimination of contaminants that may affect the final product quality.
• Sorting:
  Substandard materials such as severely damaged or deteriorated fish skin and bones are removed. This step guarantees that only high-quality raw materials proceed to the next processing stages.

2. Crushing Process

• Coarse Crushing (Meat Grinder):
  A crusher is used to initially grind fish skin and bones into larger particles. This breaks down the raw materials into manageable sizes for subsequent fine processing.
• Fine Crushing (Colloidal Mill):
  Equipment such as a grinding mill is employed to further refine the particles to the required fineness. This stage ensures the powder meets the specified particle size standards for different applications.

3. Biological Reaction Stirring System

• Emulsifying Pump: Facilitates the emulsification of materials to promote uniform mixing.
• Rinsing Tank & Re-rinsing Tank: Further cleans the materials to remove residual impurities.
• Enzymatic Hydrolysis Tank: Uses enzymes to break down proteins and other components in fish skin and bones, enhancing the nutritional value and usability of the powder.
• Salting-out Tank: Controls the concentration of salts to precipitate target components, contributing to the purity of the final product.

4. Drying Process

• Drying Methods:
  Hot air drying or vacuum drying can be used to remove moisture from the stirred liquid (containing fish bones and meat). The evaporation amount of water is carefully monitored to ensure product quality and stability.
• Temperature & Time Control:
  Strict control of drying temperature and time is essential to prevent over-drying, which could compromise the product's quality and nutritional value.

5. Screening and Packaging

• Screening:
  Screening equipment is used to grade fish skin and bone powder by particle size, ensuring a uniform product. This allows for customization to meet different customer requirements.
• Packaging:
  Appropriate packaging materials are used to protect the powder from contamination and damage during storage and transportation, maintaining its quality and hygiene.

Quality Control and Operational Requirements

Conclusion