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Energy-Saving Particleboard Continuous Flat Press Line 35% Energy Reduction

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Energy-Saving Particleboard Continuous Flat Press Line 35% Energy Reduction

Energy-Saving Particleboard Continuous Flat Press Line 35% Energy Reduction

The energy-saving continuous flat-pressing hot-pressing line achieves an energy consumption reduction of over 35% through four key technological pillars: precise zone control, closed-loop heat energy circulation, efficient drive system, and low-temperature process adaptation. It also improves product accuracy (thickness tolerance ≤ ±0.15mm) and stability. The core lies in converting energy consumption from a "cost" to a "reusable resource", providing an economically and environmentally friendly solution for the wood panel industry. The future development direction will focus on hydrogen heating and AI dynamic optimization of the press curve, further approaching the goal of a "zero-carbon press".

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Model:
MH-CHP
Brand:
MINGHUNG

Product Description

Energy-Saving Particleboard Continuous Flat Press Line 35% Energy Reduction

CPS Continuous Hot Press Particleboard Production Line

I.Continuous Flat Press Working Principle

Innovative integration beyond conventional continuous presses:

1. Mat Forming

- Dried particles blended with resin (PMDI/UF) via air-sifting forming with gradient structure (fine surface/coarse core).

- Energy-saving feature: Variable-frequency drive forming heads reduce idle consumption; online mat density monitoring prevents material waste.

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2. Pre-pressing & Infeed

- Mat compressed by belt pre-press (0.5-2 MPa) to minimize thickness variation before main press.

- Energy-saving feature: Lightweight composite pre-press rolls cut drive power by 18%.

Continuous pre-pressing machine for PB OSB wood based panel production line

Continuous pre-pressing machine for PB OSB MDF wood-based panel production line

3. Continuous Hot Pressing

- Mat conveyed between steel belts through multi-zone controlled heating platens:

- Inlet high-pressure zone (20-50 MPa): Rapid compression to target thickness.

- Central constant-temp zone (180-220°C): Complete resin curing.

- Outlet pressure-release zone (5-10 MPa): Dimensional stabilization.

- Heating method: Thermal oil circulation (30% more efficient than steam); optional electromagnetic induction heating for faster response.

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4. Post-processing

- Continuous panel → Flying cross-cut saw → Star cooler (forced-air cooling) → Sanding → Stacking.

- Energy-saving feature: Cooling section heat recovery for drying stage.

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II. Key Parameters & Performance

Parameter	Energy-Saving Line	Conventional Line
Working Width	2.5-4.8 m (up to 4.8m+)	Same width
Daily Capacity	1,000-3,000 m³	Same capacity
Press Temperature	180-220°C (±2°C zonal control)	190-230°C (±5°C)
Specific Energy	≤180 kWh/m³	270-320 kWh/m³
Heat Recovery Rate	≥40% (exhaust/cooling heat reuse)	≤15%
Thickness Tolerance	±0.15 mm	±0.3 mm

III. Core Energy-Saving Technologies (35% Reduction)

(1) Press System Optimization (≈25% Savings)

- Precision Zonal Control:

- Servo-proportional valves + pressure sensors → pressure error <±0.5 MPa.

- Micro-channel thermal oil tubes in platens → 40% faster heating; 98% temp uniformity.

- Steel Belt Friction Reduction:

- Nano-ceramic coating (friction coefficient ↓60%) → drive power ↓15%.

- Auto-lubrication system minimizes friction heat.

(2) Heat Recovery Systems (≈8% Savings)

- Exhaust Gas Incineration:

- Formaldehyde-rich exhaust → Regenerative Thermal Oxidizer (RTO) (≥850°C) → heats thermal oil (replaces 30% natural gas).

- Cooling Section Heat Reclaim:

- Panel cooling heat → heat pipes → preheats dryer intake air (+50-80°C).

(3) Drive System Upgrades (≈7% Savings)

- Permanent Magnet Motors:

- ≥96% efficiency (vs. 89% for induction motors) → 10-15% power reduction.

- Intelligent Hydraulic Station:

- Variable-frequency pumps → standby flow ↓90%.

Siemens Motor for MINGHUNG PB MDF OSB Continuous Belt Press

sinmens motor

Hydraulic Station

(4) Process Synergy (≈5% Savings)

- Low-Temp Curing Resins:

- PMDI enables curing at 160-180°C (vs. 190-210°C for UF).

- Mat Moisture Control:

- Online IR sensors maintain ±0.5% moisture accuracy → optimizes drying energy.

IV. Economic Analysis

1.Energy Comparison:

Conventional: 270-320 kWh/m³

Energy-saving: ≤180 kWh/m³ → 35-45% reduction

2.Annual Savings (300,000 m³ line):

Electricity: (300 - 180) × 300,000 = 36,000,000 kWh ($3.6M @ $0.1/kWh)

Natural gas: 180,000 GJ ($1.08M @ $6/GJ)

3.CO₂ reduction: 28,000 tons ($144k carbon credit @ $5/ton)

ROI: 15-20% higher CAPEX repaid in 2-3 years.

Ⅴ.Energy conservation is demonstrated

1. Thermal Efficiency Contrast

Factor	Continuous Flat Press	Multi-Opening Press	Energy Advantage
Preheating Loss	No shutdown → zero cyclic heat loss	30%+ heat loss per cycle	Eliminates thermal inertia waste
Surface Heat Loss	60% less exposed area (enclosed belts)	Open platens → high convection	Steel belts minimize radiation
Heat Transfer Eff.	Thermal oil system (≥85% eff.)	Steam system (≤65% eff.)	Direct contact + temp stability
Waste Heat Recovery	≥40% via RTO + heat exchangers	None → direct emission	Closed-loop energy reuse

Data: Specific heat consumption: 1.0-1.2 GJ/m³ (continuous) vs. 1.8-2.2 GJ/m³ (multi-opening).

2. Operational Efficiency

Metric	Continuous Press	Multi-Opening Press
Effective Press Time	≥95%	≤45%
Output Rate	50-100 m³/h (4.8m line)	10-20 m³/h (20-opening press)
Power Use	≤180 kWh/m³	250-300 kWh/m³

Mechanism: Continuous motion eliminates idle time; zonal hydraulics avoid full-platen cycling.

3. System Design Innovations

3.1 Zonal Pressure/Temp Profiling

- Continuous: 30-50 independent zones (30MPa inlet → 5MPa outlet).

- Traditional: Uniform 35-40 MPa → core over-compression waste.

3.2 Friction Reduction

- Nano-coated belts: μ 0.25 → 0.1 → 40% less drive power.

- Smart hydraulics: Standby power <10% of fixed-pump systems.

3.3 Thermal Closed Loop

微信截图_20250708114121

4. Process Integration

Technique	Continuous Press Benefit	Traditional Limitation
Low-Temp Adhesives	PMDI cures @ 160-180°C	UF requires 190-220°C
Moisture Control	Online IR (±0.5%)	Manual sampling (±2%)
Precise Forming	Air-sifting + feedback → 7% mat savings	Mechanical → safety overfill

5. Verified Savings

300,000 m³/year particleboard line:

Energy	Continuous	Multi-Opening	Annual Savings
Electricity	54 GWh	90 GWh	36 GWh
Natural Gas	240,000 GJ	420,000 GJ	180,000 GJ
CO₂	-	-	28,800 tons

Conclusion: 35-40% total energy reduction; ROI <3 years.

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Whatsapp: +8618769900191 +8615589105786 +8618954906501

Email: osbmdfmachinery@gmail.com

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+86-18769900191 / +86-15589105786
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Energy-Saving Particleboard Continuous Flat Press Line 35% Energy Reduction

Energy-Saving Particleboard Continuous Flat Press Line 35% Energy Reduction

Energy-Saving Particleboard Continuous Flat Press Line 35% Energy Reduction

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