With its unique structural design and operating principle, the Scraper Vibrating Screen has become a core solution to the pain points of fine screening in the food industry, providing a reliable solution for efficient screening of materials such as starch, flour, milk powder, fruit and vegetable powder, and additives. Coreal Machinery has compiled some information for your reference.
In the food industry production chain, from raw material pretreatment to finished product grading, screening remains the "gatekeeper of quality." With increasing consumer demand for refined and safer food, traditional screening equipment often encounters problems such as screen clogging, insufficient screening accuracy, and low efficiency when handling high-viscosity, easily agglomerated, and fine-particle materials.
I. Common Problems in Fine Screening in the Food Industry
- 1. Screen Clogging: Materials rich in oil, sugar, or water easily adsorb and adhere to the screen, causing clogging of the mesh, rapidly reducing the effective screening area and dramatically decreasing efficiency.
- 2. Agglomeration: Many powders tend to clump during storage and transportation, making traditional vibrating screens difficult to break up. This results in ineffective separation of large impurities or agglomerates, impacting product uniformity.
- 3. Static Electricity: Screening dry, lightweight powders generates static electricity, causing the powder to adhere to the screen frame or clump, impacting screening accuracy and yield.
- 4. The Conflict Between Output and Precision: Increasing output often requires increasing the vibration amplitude or using a larger mesh screen, but this sacrifices screening accuracy. Conversely, pursuing high precision results in reduced output.
- 5. Hygiene Requirements: Food-grade production requires equipment that is easy to clean and disinfect thoroughly, with no dead corners, to prevent microbial growth and cross-contamination.
II. The Outstanding Advantages of Scraper Vibrating Screens in the Food Industry
1. Highly Efficient Anti-clogging, Significantly Increased Output: This completely solves the problem of screen clogging caused by high-fine, easily adherent materials. The equipment can operate continuously for extended periods without frequent downtime for cleaning, resulting in 30%-50% higher output than conventional vibrating screens.
2. High Screening Precision and Stable Product Quality: Ensures effective operation of each mesh, clear separation of oversize and undersize, and a concentrated product particle size distribution, ensuring consistent and high-quality product.
3. Wide Range of Materials: excels at processing materials that traditional screens struggle with, such as:
- High-precision materials: Flour, starch, and soy flour with a mesh size of 200 or larger.
- Prone materials: Milk powder, egg white powder, cocoa powder, and powdered sugar.
- Light-weight materials: Tea powder and seasoning powder.
- Prone materials: Rice flour and pollen.
4. Compliant with Food-Grade Hygiene Standards:
- Contact components are typically made of 304 or 316L stainless steel, which is corrosion-resistant, non-toxic, and odorless.
- The food-grade certified silicone scraper is flexible, does not damage the screen, and is easily disassembled for cleaning.
- The design strives for zero hygienic blind spots and a smooth surface, facilitating CIP (Cleaning-in-Place) or SIP (Sterilization-in-Place) processing.
5. High degree of automation, reducing labor costs: Fully automated screen cleaning eliminates the need for manual intervention, reducing worker workload and maintenance costs.
III. Application Scenarios
1. Flour and Grain Processing: High-precision flour grading and impurity removal, and screening of rice and corn flour.
2. Dairy Industry: Final screening of milk powder and whey protein powder to ensure agglomeration-free production.
3. Condiments and Spices: Screening and impurity removal of powdered sugar, MSG, chili powder, pepper, and spice powders.
4. Food Additives: Precision screening of fine powders such as pigments, sweeteners, and nutritional enhancers.
5. Starch and Sugar Industry: Screening of potato starch, tapioca starch, and powdered sugar.
Coreal Machinery is committed to providing you with high-quality screening equipment and industry solutions.