Overview of 50-Ton Daily Rice Processing Line
A 50-ton daily (milled rice) processing line is a typical configuration for medium-to-large domestic rice processing enterprises, with annual processing capacity of approximately 15,000 tons of paddy. In lines of this scale, the hulling section as the first critical process directly affects the capacity and economic benefits of the entire production line.
Hulling Section Capacity Calculation
Basic Parameters:
- Daily milled rice output: 50 tons
- Milling yield (milled rice/paddy): Calculated at 65%-70%
- Daily paddy required: 50 ÷ 0.70 ≈ 71 tons (upper limit)
- Daily operating hours: 20 hours/day (two-shift system)
- Required huller hourly capacity: 71 ÷ 20 ≈ 3.6 tons/hour
Considerations:
- Equipment utilization: Actual production cannot achieve 100% continuous operation; calculated at 85%
- Design capacity: 3.6 ÷ 0.85 ≈ 4.2 tons/hour
- Actual huller capacity requirement: 4.5-5 tons/hour
Rice Huller Selection Recommendations
For a hulling capacity requirement of 4.5-5 tons/hour, the following configurations are recommended:
Option 1: Single Machine (Recommended)
Equipment: One large pneumatic rice huller with 5-6 tons/hour capacity
Advantages:
- Fewer machines, simpler management and maintenance
- Smaller footprint, compact layout
- High automation, low labor costs
- Relatively lower investment
Applicable Scenarios:
- Production lines with single, stable rice varieties
- Enterprises pursuing automation and minimal staffing
- Processing plants with limited floor space
Recommended Model: Zhejiang Lianggong MLGQ-C series pneumatic rice huller, 5-8 tons/hour, with automatic control system.
Option 2: Dual Machine Parallel Configuration
Equipment: Two medium pneumatic rice hullers (3-4 tons/hour each) operating in parallel
Advantages:
- High flexibility; can operate one or both based on production volume
- When one is under maintenance, the other maintains partial production
- Suitable for multi-variety rotation processing
- Single machine failure does not stop entire line
Applicable Scenarios:
- Production lines with many rice varieties requiring frequent switching
- Enterprises with high continuity requirements
- Users wishing to distribute equipment risk
Recommended Model: Two Zhejiang Lianggong MLGQ-B series pneumatic rice hullers, 3-5 tons/hour each.
Auxiliary Equipment Configuration
Rice hullers cannot work alone and require the following auxiliary equipment:
1. Cleaning Equipment (Pre-hulling)
| Equipment | Function | Recommendation | |-----------|----------|----------------| | Vibrating Cleaner | Remove large and small impurities | 8-10 tons/hour, matching huller capacity | | Destoner | Remove stones and metal | 8-10 tons/hour | | Magnetic Separator | Remove ferrous impurities | Pipeline type, installed on feed pipe |
2. Hulling Section Equipment
| Equipment | Function | Recommendation | |-----------|----------|----------------| | Rice Huller | Paddy dehusking | 5-6 tons/hour, pneumatic automatic type | | Husk Separator | Separate husks from brown rice | Matching huller, air separation type | | Paddy-Brown Rice Separator | Separate unhulled grains | Planar rotary sieve or vibrating sieve | | Re-hulling Elevator | Return unhulled grains to huller | Bucket elevator, matching capacity |
3. Air Network System
The air network system in the hulling section is crucial:
- Air volume calculation: Approximately 150-200 m³/h per ton of paddy
- Fan selection: Total airflow 1000-1200 m³/h, total pressure 1500-2000 Pa
- Dust collector: Matching bag filter or pulse dust collector, filter area ≥ 30 m²
4. Control System
Recommended automated control system configuration:
- PLC Control: Automates huller start/stop, feeding adjustment, fault alarming
- Touchscreen Operation: Intuitive display of operating parameters (current, temperature, output, etc.)
- Metering System: Install electronic flow scales for real-time processing monitoring
- Interlocking Control: Linked with preceding and subsequent process equipment for full-line automation
Workshop Layout Points
For the hulling section of a 50-ton daily production line, recommended workshop area:
- Equipment footprint: Approximately 30-40 m² (including operating aisles)
- Height requirement: No less than 5.5 meters (for elevators and air network piping)
- Floor load capacity: ≥ 500 kg/m²
Layout Principles:
- Follow "high to low" flow to minimize lifting
- Place huller and husk separator close together to shorten conveying distance
- Keep air network piping as short and straight as possible with minimal bends
- Reserve equipment maintenance space (no less than 0.8 meters on all sides)
Power and Energy Consumption Estimation
| Equipment | Power (kW) | Quantity | Subtotal (kW) | |-----------|------------|----------|---------------| | Rice Huller | 15-18.5 | 1 | 15-18.5 | | Fan | 7.5-11 | 1-2 | 7.5-22 | | Elevator | 2.2-3 | 2-3 | 4.4-9 | | Paddy-Brown Rice Separator | 1.5-2.2 | 1 | 1.5-2.2 | | Total | | | 28-52 |
Power consumption per ton: Approximately 3.5-4.5 kWh/ton of paddy (entire section)
Investment Budget Reference
Equipment investment for the hulling section of a 50-ton daily production line (for reference only):
| Configuration | Equipment Investment (RMB 10k) | Installation & Commissioning (RMB 10k) | |---------------|-------------------------------|----------------------------------------| | Single Machine | 80-120 | 10-20 | | Dual Machine | 120-180 | 15-25 |
Zhejiang Lianggong Complete Solution
Zhejiang Lianggong Machinery Technology Co., Ltd. provides not only standalone equipment but also complete solutions for 50-ton daily rice processing lines:
- Process Design: Optimal process flow based on customer raw material characteristics and finished product requirements
- Equipment Matching: Complete sets from cleaning, hulling, milling to color sorting and packaging
- Installation & Commissioning: Professional engineers for on-site installation and commissioning
- Training Services: Systematic operation and maintenance training for customer operators
- After-Sales Guarantee: One-year warranty, lifetime maintenance, guaranteed parts supply
For more information about 50-ton daily rice processing line configurations, please call 0575-87335525 or visit our website.
