Welcome to Nanyang Co.!

Main Economical & Technical Data 

 

1.Output particle board 30000 m3/y On the basis of 16mm in thickness
2.Final product specification particle board 2440×1220×( 6～25 ) 
3.Working regulation yearly working 300D 
Daily working 22.5h Effective working time
4. Main material  consumption
 Wood material 3.2×10000 m3/y 
5.Main auxiliary material
Urea-formaldehyds 3300t/y Solid content is about60～65%
Paraffin 120t/y Solid
Ammonium chloride 30t/y concentration 97％
6.Power consumption
Water consumption 10m3/h 
Water consumption for production 4m3/h 
Cool recycle water 2.5m3/h 
Electricity 315～350kwh/m3 
Heat consumption for production 220×10000kcal/h 
The production line installed capacity 1150kw
7.Number of personnel 120 
Worker  90 Three shift per day
8.main workshop area 2000 SQM

 

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Heating system
Main technical data for steam boiler
Rated vapouring                     10 t/h
Rated pressure                       2.5 Mpa
Steam temperature                 saturation
Heat load（approximation）
Dryer                    6.5 t/h           2.0 Mpa
Hot press              2.5 t/h           1.6 Mpa
Wax-melting          0.2 t/h           0.3 Mpa
Resin preparation   0.3 t/h           0.3 Mpa

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Environment protection

Environment protection is determined according to the user's local environment protection requirements. China's requirements are as follow

1.Dissociate formaldehyde content in the air
outlet outside workshop less than  3mg/m3.air
in the workshop less than  0.05 mg/m3.air
2.Powdery dust content in the air
Cyclone separator outlet of outside workshop less than 150 mg/m3.air
Bag filter outlet less than 20 mg/m3.air
3.Noise
contact noise time per day 8 hours 85 db (A)
contact noise time per day 4 hours 88 db (A)
contact noise time per day 2 hours 91 db (A)
contact noise time per day 1 hours 94 db (A)
not more than                              115db (A)

For noise, wood machining equipments can't solve this in the world such as flaker, saw sanding machine, etc. Generally, When designing, you can adopt isolating  measures or protection measures.

4.Waster water
BoD5 less than 60 mg/L
CoDcr less than 100 mg/L
Dissociate formaldehyde less than 0.5 mg/L
Float less than 500 mg/L
PH less than 6～9

Waste water comes form following condition for MDF factory
Water from glue preparation and spraying equipment. When cleaning preparing and spraying glue equipment, the user must control the cleaning water minimally. The deposit pond should be equipped at outdoor so as to reuse.
Water out of refiner feeding screw. Generally, you can equip with the deposit pond at outdoor. After filtered, convey to boiler to steam and remove cinder, burn in the coal or others processing method.

5.Waste residue
Waste materials coming from the producing course and materials storing course and deposits produced when cleaning , preparing glue, spraying glue, defining can act as fuel energy.

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The production processing flow
1.Chip preparation  section
First of all, the raw materials should be transported and stacked at the factory site in accordance with the different wood species.
Via the live log belt conveyor, the short and small wooden materials such as branches are made into wood chips by drum chipper, such chips should be sent and stored in chip silo by the No.1 wind conveyer. The wood chips are made into acceptable flakes by round flaker. Finally, the flakes are conveyed into the continuing dryer by the No.2 wind conveyer.
After being dried, the flakes are conveyed into the round swing screen by the No.3 wind conveyer.
2.flakele preparation and gluing section
The flakes are conveyed into the round swing screen to be classified in the event of fine. The larger flakes are made into the smaller ones by the hammer recrusher, and the such smaller flakes are conveyed into the silo for surface flake by No.5 wind conveyer.
The core flakes, are blew into the silo for core flake by No.4 wind conveyer.
This section mainly consists of paraffin-emulsifying, the making and transfer of the hardener solution, additive storage and glue mixture system. The glue mixture for surface and core flake is respectively concocted in the two glue mixers. The glue mixture system is controlled by PLC unit. So the glue preparation section can realize the automatic dosing, continuous concoction and constant glue-spreading, naturally, the adjustment of the above-=mentioned items can also be fulfilled.
The surface flakes and core flakes are glue-spread respectively. Via the oscillating discharger and flake dosing device, the flakes are uniformly conveyed into the round glue mixer where the flakes and glue are mixed fully and uniformly. In order to guarantee  the constant glue-spreading ratio stipulated by the technological requirements, the glue spreading quantity is automatically changed in accordance with the variations of the flake.
3.Rough board preparation section
The glued surface and core flakes are conveyed into the fixation forming machine by screw conveyors and the bucket elevator, under the actions of two rollers in opposite directions running, the continuous mat with gradual-changing structure is formed into the best of the forming conveyor, and such continuous mat is cut to the standard length by the cross cutting saw, in the meantime, the cutting waste is low back to movable air-flow forming machine. As soon as the hot press opens, the forming conveyor will unload the rough board from the hot press and load the dimensional mat with standard length to the hot press, simultaneously, the forming machine will also move to the required position with high speed, then another new continuous mat will be formed.
Via the collection and returning device the unacceptable mat is blow back to the forming machine.
The hot press is welded-frame type, its hydraulic cylinders are set in the bottom of press table i.e. the movable beam, and its rising and pressurizing are realized under the action of hydraulic system. The heating medium of hot-pressing platens is steam or thermal oil. The whole hot-pressing cycle can be realized automatically according to the preset program. Naturally, the hot-pressing program can be modified and set according to different technological requirements.
The rough boards on the unloading are discharged onto the conveyor, and they enter into the downstream line.
After sanding the board is conveyed to the roller conveyor .
After being centered and scaled, the rough board is cut into six dimensional boards by longitudinal saw and transversal saw, meanwhile, the trimming waste is blew black to the wet flake storage silo.
Under the actions of roller conveyor, the dimensional board is conveyed to the fork roller one by one via piling and centering machine and hydraulic lifting platform, at last, the dimensional boards are transported to the storage place.
4.Electric control system
There is a main control room from flake dosing device, glue-spreading, mat-forming and hot-pressing to mat scale and edge-trimming in the particleboard production line. By manipulating the electric control system, it can make each operating procedures automatically or manually. In order to monitor and control the real situations, the operating desk (box) is arranged at each production site (excluding the mat-forming and hot-pressing section).
5.Sanding and cutting sides Section
Finally, the stored dimensional boards are sanded by the sanding machine. The board which the thickness is 6mm needn't to be sanded. the sanding system mainly consists of hydraulic lifting platform, roller conveyor, wide belt with two heads sanding machine and so on. After being inspected and classified, the sanded final dimensional particle board can be transported to the end-product warehouse.
After sanding the board is conveyed to the roller conveyor .
After being centered and scaled, the rough board is cut into six dimensional boards by longitudinal saw and transversal saw, meanwhile, the trimming waste is blew black to the wet flake storage silo.
Under the actions of roller conveyor, the dimensional board is conveyed to the fork roller one by one via piling and centering machine and hydraulic lifting platform, at last, the dimensional boards are transported to the storage place.