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MH-MDF-CHP
MINGHUNG
Core Structure of Continuous Flat Press
1.Key Subsystems
System | Function | Technical Parameters |
Steel Belt Drive | Carries fiber mat continuously under pressure | - SUS316 stainless belt (1.2-1.8mm thick) |
- Surface hardness HRC 55-60 | ||
- Tension control accuracy ±5kN | ||
Zoned Heating Plates | Gradient curing via temperature zones | - 24-36 independent zones |
- Max 250°C (±1°C) | ||
Hydraulic Servo | Delivers dynamic linear pressure | - Max 12MPa |
- Response time ≤30ms | ||
Thickness Control | Real-time laser monitoring/adjustment | - Resolution 0.01mm |
- Closed-loop accuracy ±0.1mm | ||
Lubrication & Cleaning | Prevents resin adhesion to belt | - Silicone spray (0.1-0.3g/m²) |
- Graphite scraper |
Steel Belt
Heating Plates
Hydraulic system
2. Continuous vs. Batch Press Advantages
Metric | Continuous Press | Batch Press |
Daily Capacity | 800–2,500 m³/day | 200–500 m³/day |
Thickness Range | 1.5–60 mm | 6–40 mm |
Density Uniformity | Deviation ≤3% | Deviation ≤8% |
Energy Consumption | 28–35 kWh/m³ | 45–60 kWh/m³ |
1. Fiber Preparation System
- Refiner:
- Power: 900–1,500 kW (Output 1.5–3 t/h)
- Disc gap: 0.1–0.3mm (±0.02mm)
- Fiber Drying:
- Triple-pass rotary dryer
- Inlet temp: 180–220°C → Outlet moisture: 8–10%
2. Resin Application System
Resin Type | Dosage | Mixing Method | Curing Requirement |
Urea-Formaldehyde (UF) | 8–12% | High-speed atomization | ≥160°C/45s |
Melamine-Urea (MUF) | 10–15% | Biphasic jet spraying | ≥180°C/60s |
Paraffin Wax | 0.5–1.2% | Micro-emulsification | Co-curing |
3. Forming Section
- Mat Formation: Oscillating rake + air-suspension dual-stage
- Pre-press:
- Line pressure: 120–180 N/mm
- Pre-pressed density: 450–550 kg/m³
- Metal Detector: Sensitivity ≥Ø2mm iron particles
Pressing Trinity Control
Parameter | Control Range | Impact | Sensor Type |
Temperature | 180–230°C | Resin cure rate | K-type thermocouple (±1°C) |
Pressure | 3.5–5.5 MPa | Density distribution | Piezoelectric (±0.1%) |
Time | 15–40 s/mm | Core-layer curing depth | Encoder (±0.1s) |
Key Supporting Equipment
1. Energy Center
Equipment | Solution | Efficiency |
Thermal Oil Heater | Gas-fired (proportional control) | Thermal efficiency ≥92% |
Steam Boiler | Waste-heat recovery (10–20 bar) | Steam: 0.8–1.2t/m³ |
Flue Gas Treatment | Bag filter + SCR denitration | NOx ≤50 mg/Nm³ |
2. Sanding Line
Stage | Function | Technical Parameters |
Coarse Sanding | Thickness calibration | Grit P40, cut 0.5–1mm |
Fine Sanding | Surface finishing | Grit P120, speed 25 m/s |
Dust Collection | Explosion-proof pulse filter | Airflow ≥30,000 m³/h |
Advanced Control Systems
System Architecture
1.Core Controller: SIMATIC S7-1500 PLC
Scan cycle: 1 ms
Supports 1,024 I/O points
Communication: PROFINET Industrial Ethernet (100 Mbps)
2. Siemens S7-1500 PLC Implementation
- Real-time Optimization: Adjusts pressure/temperature every 100ms
- Fault Prevention:
- Belt misalignment >2mm triggers alarm
- Temperature gradient >5°C/m auto-slows line
3.Core Control Functions
Module | Control Algorithm | Accuracy |
Temperature Control | PID + Feedforward Compensation | ±0.8°C (at 350°C) |
Pressure Loop | Adaptive Hydraulic Servo Control | Pressure fluctuation ≤±0.3 MPa |
Thickness Control | Laser Gauging + Real-time Feedback | Thickness tolerance ±0.1 mm |
Density Distribution | Dynamic Spreader Adjustment | Density gradient ≤5% |
4.Technical Advantages
Metric | Siemens System | Standard PLC |
Fault Response Time | ≤50 ms (hardware interrupt) | 200–500 ms |
Parameter Optimization | 10 adjustments/second | 1 adjustment/minute |
Thickness Control | ±0.08 mm | ±0.15 mm |
Energy Efficiency | +18–22% improvement | Baseline |
If interested please contact us for a quote.
Our Services
Pre-sales service:
1) Listen to customer needs
2) Provide preliminary machine design and flow chart for free, select and provide the most reasonable configuration equipment:
3) Support remote meetings and remote factory visits;
4) Provide professional advice to customers and confirm the final selection
5) Support on-site factory visits;
On-purchase service:
1) All equipment must be installed and debugged before leaving the factory, and remote video quality inspection is supported;
2) All machines must be unpacked before leaving the factory, and photos, videos, and annotations must be provided;
3) Free online or offline training for buyers' operators (domestic)
4) Assist buyers in installing and debugging equipment (overseas)
After-sales service:
1) 7*24 hours online service, remote real-time video solution;
2) During the first installation and debugging process, problems encountered during normal operation are solved in time:
3) Regular process inspection and use effect, timely machine maintenance suggestions:
4) Lifetime free technical guidance
5) Timely update the latest industry information.
Our contacts:
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com
Core Structure of Continuous Flat Press
1.Key Subsystems
System | Function | Technical Parameters |
Steel Belt Drive | Carries fiber mat continuously under pressure | - SUS316 stainless belt (1.2-1.8mm thick) |
- Surface hardness HRC 55-60 | ||
- Tension control accuracy ±5kN | ||
Zoned Heating Plates | Gradient curing via temperature zones | - 24-36 independent zones |
- Max 250°C (±1°C) | ||
Hydraulic Servo | Delivers dynamic linear pressure | - Max 12MPa |
- Response time ≤30ms | ||
Thickness Control | Real-time laser monitoring/adjustment | - Resolution 0.01mm |
- Closed-loop accuracy ±0.1mm | ||
Lubrication & Cleaning | Prevents resin adhesion to belt | - Silicone spray (0.1-0.3g/m²) |
- Graphite scraper |
Steel Belt
Heating Plates
Hydraulic system
2. Continuous vs. Batch Press Advantages
Metric | Continuous Press | Batch Press |
Daily Capacity | 800–2,500 m³/day | 200–500 m³/day |
Thickness Range | 1.5–60 mm | 6–40 mm |
Density Uniformity | Deviation ≤3% | Deviation ≤8% |
Energy Consumption | 28–35 kWh/m³ | 45–60 kWh/m³ |
1. Fiber Preparation System
- Refiner:
- Power: 900–1,500 kW (Output 1.5–3 t/h)
- Disc gap: 0.1–0.3mm (±0.02mm)
- Fiber Drying:
- Triple-pass rotary dryer
- Inlet temp: 180–220°C → Outlet moisture: 8–10%
2. Resin Application System
Resin Type | Dosage | Mixing Method | Curing Requirement |
Urea-Formaldehyde (UF) | 8–12% | High-speed atomization | ≥160°C/45s |
Melamine-Urea (MUF) | 10–15% | Biphasic jet spraying | ≥180°C/60s |
Paraffin Wax | 0.5–1.2% | Micro-emulsification | Co-curing |
3. Forming Section
- Mat Formation: Oscillating rake + air-suspension dual-stage
- Pre-press:
- Line pressure: 120–180 N/mm
- Pre-pressed density: 450–550 kg/m³
- Metal Detector: Sensitivity ≥Ø2mm iron particles
Pressing Trinity Control
Parameter | Control Range | Impact | Sensor Type |
Temperature | 180–230°C | Resin cure rate | K-type thermocouple (±1°C) |
Pressure | 3.5–5.5 MPa | Density distribution | Piezoelectric (±0.1%) |
Time | 15–40 s/mm | Core-layer curing depth | Encoder (±0.1s) |
Key Supporting Equipment
1. Energy Center
Equipment | Solution | Efficiency |
Thermal Oil Heater | Gas-fired (proportional control) | Thermal efficiency ≥92% |
Steam Boiler | Waste-heat recovery (10–20 bar) | Steam: 0.8–1.2t/m³ |
Flue Gas Treatment | Bag filter + SCR denitration | NOx ≤50 mg/Nm³ |
2. Sanding Line
Stage | Function | Technical Parameters |
Coarse Sanding | Thickness calibration | Grit P40, cut 0.5–1mm |
Fine Sanding | Surface finishing | Grit P120, speed 25 m/s |
Dust Collection | Explosion-proof pulse filter | Airflow ≥30,000 m³/h |
Advanced Control Systems
System Architecture
1.Core Controller: SIMATIC S7-1500 PLC
Scan cycle: 1 ms
Supports 1,024 I/O points
Communication: PROFINET Industrial Ethernet (100 Mbps)
2. Siemens S7-1500 PLC Implementation
- Real-time Optimization: Adjusts pressure/temperature every 100ms
- Fault Prevention:
- Belt misalignment >2mm triggers alarm
- Temperature gradient >5°C/m auto-slows line
3.Core Control Functions
Module | Control Algorithm | Accuracy |
Temperature Control | PID + Feedforward Compensation | ±0.8°C (at 350°C) |
Pressure Loop | Adaptive Hydraulic Servo Control | Pressure fluctuation ≤±0.3 MPa |
Thickness Control | Laser Gauging + Real-time Feedback | Thickness tolerance ±0.1 mm |
Density Distribution | Dynamic Spreader Adjustment | Density gradient ≤5% |
4.Technical Advantages
Metric | Siemens System | Standard PLC |
Fault Response Time | ≤50 ms (hardware interrupt) | 200–500 ms |
Parameter Optimization | 10 adjustments/second | 1 adjustment/minute |
Thickness Control | ±0.08 mm | ±0.15 mm |
Energy Efficiency | +18–22% improvement | Baseline |
If interested please contact us for a quote.
Our Services
Pre-sales service:
1) Listen to customer needs
2) Provide preliminary machine design and flow chart for free, select and provide the most reasonable configuration equipment:
3) Support remote meetings and remote factory visits;
4) Provide professional advice to customers and confirm the final selection
5) Support on-site factory visits;
On-purchase service:
1) All equipment must be installed and debugged before leaving the factory, and remote video quality inspection is supported;
2) All machines must be unpacked before leaving the factory, and photos, videos, and annotations must be provided;
3) Free online or offline training for buyers' operators (domestic)
4) Assist buyers in installing and debugging equipment (overseas)
After-sales service:
1) 7*24 hours online service, remote real-time video solution;
2) During the first installation and debugging process, problems encountered during normal operation are solved in time:
3) Regular process inspection and use effect, timely machine maintenance suggestions:
4) Lifetime free technical guidance
5) Timely update the latest industry information.
Our contacts:
Whatsapp: +8618769900191 +8615589105786 +8618954906501
Email: osbmdfmachinery@gmail.com