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Web Belt Dryer for Continuous Drying Production Line
Professional industrial web belt dryer designed for efficient continuous drying of roots, stems, and leaves in manufacturing operations.
Chrysanthemum Drying Preparation Process
Selection of Chrysanthemum Varieties
Choose fresh flowers that are intact, free from pests, and without blemishes. Different varieties require specific drying parameters:
Hangbai chrysanthemum: Suitable for low-temperature long drying
Yellow chrysanthemum: Can be dried at slightly higher temperatures for shorter duration
Optimal Harvest Time
Harvest on sunny days between 8 AM and 10 AM after dew has dried. Select flowers that have not fully opened for optimal drying results.
Washing and Pre-treatment
Gently rinse with clean water to remove dust and insect eggs
Air dry in cool, ventilated area to evaporate surface moisture naturally
Grading Process
Grade by size, thickness, or petal integrity to ensure even drying with appropriate time and temperature settings.
Belt Dryer Parameters and Settings
Temperature Control
Initial Temperature: 40°C-45°C to soften moisture in petals
Mid-temperature: 45°C-50°C for continued moisture evaporation
Final temperature: 50°C-55°C (avoid excessive heat to maintain quality)
Airflow and Wind Speed
Maintain uniform wind speed with circulating air system to ensure even hot air flow and prevent petal damage.
Belt Speed Control
Optimal speed: 0.5-1 m/min, adjusted based on chrysanthemum thickness and moisture content.
Drying Time
Typically 4-6 hours using segmented drying approach for optimal results.
Common Drying Problems and Solutions
Problem
Cause
Solution
Dark yellow color
Excessive temperature or prolonged time
Lower temperature, shorten drying time, use segmented temperature control
Petals curling or breaking
Belt collision or high wind speed
Adjust placement, lower wind speed, use flexible belts
Loss of fragrance
High temperature or too rapid drying
Maintain low heat for slow drying, shorten high-temperature phase
Internal moisture remains
Overcrowding or poor air circulation
Layer placement, increase ventilation or airflow
Flowers easily falling off
Inappropriate belt aperture
Use belts with suitable apertures, add anti-drop design
Mold growth
High moisture content, high humidity storage
Pre-dry, package immediately after drying, store in low-humidity environment
Detailed Drying Process
Harvesting → Grading → Washing → Air Drying
Loading onto Belt → Adjusting Placement Density
Start Dryer → Control Temperature and Wind Speed in Segments → Regular Checks
Completion of Drying → Cooling → Quality Inspection
Packaging → Storage → Sales or Further Processing
The cooling stage is critical to avoid humid reflow when hot flowers are directly sealed in packages.
Cost Analysis (per 100 kg fresh chrysanthemums)
Cost Category
Description
Estimated Cost (RMB)
Chrysanthemum Raw Material
100 kg of fresh flowers
800-1200 RMB
Electricity Cost
Belt dryer power 15-30 kW/batch for 4-6 hours
30-50 RMB
Labor Cost
Harvesting, washing, placement, inspection
100-150 RMB
Equipment Depreciation
Dryer depreciation (annual allocation)
50-100 RMB/batch
Packaging
Boxes, vacuum bags, or plastic bags
20-50 RMB
Other Consumables
Washing water, electrical control consumables
10-20 RMB
Total Cost: Approximately 1010-1570 RMB per 100 kg of fresh flowers Yield: 1/5 to 1/6 of fresh flowers (approximately 20 kg dried) Cost per kilogram: Approximately 50-80 RMB for dried chrysanthemums
Efficiency Improvement and Cost Reduction Methods
Evenly spread chrysanthemums to avoid rework
Low-temperature slow drying to reduce color and fragrance loss
Batch production to reduce per-unit labor and energy costs
Multi-layer belt design to maximize space utilization
Use energy-efficient dryers with heat recovery systems
Regular cleaning of belts to maintain air circulation
Henan Suno Technology Co., Ltd. is a company dedicated to global trade and cross-border cooperation, focusing on providing customers with efficient and high-quality import and export services. By establishing a stable international supply chain, we connect resources and markets around the world to h... Henan Suno Technology Co., Ltd. is a company dedicated to global trade and cross-border cooperation, focusing on providing customers with efficient and high-quality import and export services. By establishing a stable international supply chain, we connect resources and markets around the world to h...
