Liaocheng Pet Food Industrial Park: Refrigeration System Upgrade Project

Project Overview

The Liaocheng Pet Food Industrial Park has undergone a comprehensive refrigeration system upgrade across 2,150 sqm of existing facilities, including blast freezing chambers, upgraded workshop HVAC systems, cold chain logistics integration, and innovative drying room retrofits. The flagship No.9 Chicken Breast Processing Workshop leverages intelligent climate control and process re-engineering to enhance efficiency, safety, and product consistency for premium pet meat products, targeting both domestic and international markets.

Key Upgrades

1.  Workshop HVAC System Modernization

    

   • Zoned Temperature Control: Separate 15°C climate zones for raw material handling (raw zone) and sterilized processing (cooked zone), eliminating cross-contamination risks and ensuring HACCP compliance.

   • Energy-efficient Ventilation: Inverter-driven HVAC with heat recovery reduces energy use by 25%, achieving 6 air changes per hour.

    

2. Integrated Blast Freezing & Cold Chain

    

   • -35°C Blast Freezing: Cores of cooked chicken breasts reach -18°C within 20 minutes, preserving nutrients and flavor while extending shelf life.

   • Smart Logistics: 4°C storage linked to automated sorting and blockchain-tracked refrigerated transport ensures end-to-end temperature integrity.

    

3. Drying Room Innovation

    

   • 3-stage Gradient Drying: Humidity-responsive drying at 45°C→35°C→25°C maximizes protein retention and palatability.

   • Waste Heat Recycling: Exhaust heat repurposed for workshop heating, boosting overall energy efficiency by 30%.

    

No.9 Workshop Highlights

• Thawing→Cutting→Washing under 15°C to suppress microbial growth.

• Sterilization→Seasoning→Blast freezing in a closed hygiene-controlled line.

• Batch testing for water activity (Aw≤0.85) and pathogens, meeting FDA/EU regulations.

Economic Benefits

• Daily capacity reaches 20 tons, a 40% increase.

• 18% lower unit costs via energy savings and automation.

• BRCGS certification enables access to premium EU/US markets.