Dieffenbacher Continuous Press Wood Industry Particle Board Production Line

Fully Automatic 300~1500 Cbm Per Day Particle Board Continuous Press Production Line

Description

The OSB manufacturing process is highly automated, using mostly batch presses (cycle presses) of either single or multi-opening design. With tendency for increasing productivity and efficiency, continuous presses started to be the leader among OSB manufacturers. In contrast to traditional batch presses, the continuous presses show a favorable acceptance by the wood based panel manufacturers due to their multiple advantages. Continuous presses run with a defined pressure and temperature profile over the whole effective length and are economical consumers of electrical and thermal energy. They need minimal hydraulic forces to maintain the pressure applied, or to decrease or increase it slightly, whereas in batch presses such forces vary between zero and maximum due to closing-opening cycles (Sandvik 2009). The extraordinary length of a continuous press (53 to 70 m) and pre-heating system allow it to work with a speed up to 2000 mm/sec . A further plus for continuous presses is the pressing time factor, which was estimated at 4.0 s/mm for the optimal panel thickness of 16 to 19 mm. The factor depends on press temperature, which can reach 240 oC .

The 300~1500m³/day particle board production line uses raw material through chips preparation, flakes preparation, dring and sitfting, glue dosing system, forming and hot pressing, cooling &trimming and sanding section to make particle board / chipboard. The final size can be 4 x 8, 6 x 8, 6 x 9, 4 x 12, 6 x 12, 6 x 18. The particle board has homogeneous structure, smooth surface, good machining specification and manufacture performance. It is the ideal substitute of nature wood.

Summary of process flow

• Chips Preparation Section
• Flakes Preparation Section
• Drying and Sifting Section
• Glue Dosing System
• Forming Line
• Continuous Press System
• Master Board Handling System
• Automatic Storage System
• Sanding and Cut-to-size Section
• Surface Grading System
• Automatic Package Section

Main technical data

Key equipment of production line

• Drum chipper

• Knife-ring flaker

• Dryer

1 High energy efficiency and waste energy can be recycled to save energy

2 More safe due to low oxygen drying to prevent fire

3 Flaker shape will be well maintained

4 Stable flaker moisture

5 Large unit capacity

• Screen and sifter

1 Large capacity and good performance

2 Frame screen box makes strong and durable

3 Brilliant elastic vibration support

4 Perfect rotary balance technology

5 Self-clean system with jumping balls

6 Stable running and long lifetime

7 Compact structure and less space required

• Forming station

1 Feeding crosswise— real-time regional control technology

2 Volume equal silo— ensure consistent bulk density

3 Aerodynamics— perfect balance of positive/negative pressure airflow

4 Airflow regulation system— artful combination of vertical& horizontal adjustment

5 Airflow surface forming— fine and smooth surface

6 Advanced control technology— high precision lengthwise and crosswise density

1 Crosswise feeding— real-time regional control technology

2 More delicate diamond rollers— ensure forming precision

3 Positive/negative pressure assistant airflow— ensure better fine surface

4 Core cage roller forming— uniform core mat structure

5 Advanced control technology— high precision lengthwise and crosswise density

• Hot press

• Stacking system

• Automatic storage system

• Sanding and cut-to-size line