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Modern, energy saving industrial and agricultural drying equipment, cleaners, optical sorters, conveyors, storage silos

LAW Energy Saving BI-Temperature Drier

LAW Energy Saving BI-Temperature Drier
LAW Energy Saving BI-Temperature Drier
LAW Energy Saving BI-Temperature Drier
LAW Energy Saving BI-Temperature Drier
LAW Energy Saving BI-Temperature Drier
LAW Energy Saving BI-Temperature Drier
LAW Energy Saving BI-Temperature Drier
LAW Energy Saving BI-Temperature Drier
LAW Energy Saving BI-Temperature Drier
LAW Energy Saving BI-Temperature Drier
LAW Energy Saving BI-Temperature Drier
LAW Energy Saving BI-Temperature Drier
LAW Energy Saving BI-Temperature Drier
LAW Energy Saving BI-Temperature Drier
Értékelés:

Cikkszám: L1

LAW ENERGY SAVING BI-TEMPERATURE DRYER

LAW offers a first class dryer with heat recovery.

In addition a LAW dryer provides:

* a quick and efficient response to any increase

* drying maize, as well as:

  • oil seeds (soya bean, sunflower...)
  • all other cereals (wheat, barley, rice...)
  • tropical products (coffee, cocoa bean...)

Good reasons
for choosing a LAW ENERGY SAVING DRYER

REDUCED RUNNING COST

  • Recycling of both cooled and unsaturated air in the bottom of the dryer.
  • Heating system with two temperatures adjustable over the whole height of the column.
  • Insulation of the whole dryer with glass fibre inside the (double skin) panels.
  • Helicoidal fans with mixers and stabilizers with medium pressure (greater air volume centrifugal fan for the same power rating)

SECURITY

  • Reliable operation is ensured by a comprehensive, proven, automatized system.
  • Reliable air circulation, recycled air is mixed with hot air outside of the combustion chamber thanks to a mixer.
  • Safe combustion using a non radiating fan pulsed burner.
  • Safe access to the main working parts of the dryer, through large doors interior walkways and ladders.
  • Reduced dust thanks to optional rotary cleaning filters.
  • Optional integrated pre-cleaner.

PRINCIPLE OF OPERATION

1-AIR FLOW SYSTEM

The drying column (1) of LAW economiser dryers is based on the mixed flow principle.

A series of heating zones are provided at different levels which improve the evaporative efficiency. The grain moves vertically: the sections are loaded with grain which falls by gravity each time the discharger opens allowing a pre-determined quantity to fall into the bottom collecting hopper (2).

The drying hot air is applied on the whole of one side of the drying column, and the ducts are so designed that the air passes out on the other side charged with moisture.

The drying column comprises a number of sections depending on the evaporation performance chosen. The bottom of the column comprises dual purpose sections which may be used either as drying sections or as cooling sections.

The air circulation in the dryer is due to 2 groups of fans. The first one is located at the bottom of the exhaust plenum and recycles unsaturated air from the lower drying sections and also cooling the air (8.).

The second one (9) is located at the top of the exhaust plenum and removes the saturated exhaust air. Access is directly from the upper platform one the dryer roof. A system of shutters (VDA) on each of these upper fans serves to regulate the volume of air passing through the grain (7). All the fans are equipped with dust shutters.

Dust removal system by filtration and rotative aspirator (option) (10).

2-HOT AIR SYSTEM

LAW economiser dryers are individually fitted with burners to suit the customer`s choice. (3)

In the case of fuel oil, the 2 stages burners are fitted in combustion chambers of refractory stainless steel. When gas is used the burners are of the air blowing type. These are modulating burners made by LAW and allow the use of all types of natural gas, L.P.G. ...

In either case the burners are installed in the bottom of the hot air plenum. The upper part of the hot air chamber (4) is designed to achieve a uniform temperature of air through (5).

3- ADJUSTMENT OF EVAPORATION CAPACITY

Two operating modes are available to alter the dryer to the different drying requirements, based on the use or  shutting off of recycling fan:

a) Mode 1 - Standard Operation

The shutter VDA is closed and all the air drawn in by the fans, passes through the grain.
This mode is particularly suitable for pre-cleaned maize before drying.

b) Mode 2 - Light grain

For the drying of light seeds such as sunflower, oil seed rape and sorghum. The air flow is further reduced to prevent the seed being sucked out of the drying sections and the recycling fan is switched off.
The dryer uses only the upper fans for drying and cooling.
The VDA shutters (7) are either closed or only slightly open.

OPERATION WITH SUNFLOWER SEED AND SORGHUM

These products present some particular risk during drying, they give off inflammable gases.

LAW Dryers are adapted for this king of drying including in the higher sections, a gas extraction section.

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