Microwave Vacuum Dryer


Microwave Vacuum Drying Machine

Rapid and gentle Vacuum Drying for thermo sensitive Products with low thermal Conductivity

Introduction

Heat-drying has become important in almost all areas of industrial processing. Apart from the popular conventional procedures based on conduction, convection, or infrared radiation, heat-drying utilizing microwave energy is an attractive solution to many problems in process technology. In microwave drying, heat is generated by directly transforming the electromagnetic energy into kinetic molecular energy, thus the heat is generated deep within the material to be dried. Especially in vacuum drying the fact of volume heating gives an enormous importance in order to dry bulk and viscous products with low thermal conductivity.

Fields of Application for Microwave Vacuum Drying

•Pharmaceutical Industry

•Food Industry

•Chemical Industry of Fine Chemicals

•Semi-Conductor Manufacturing

Advantages

As compared to conventional drying methods, microwaves penetrate into much greater depths. This so-called volume heating has the following advantages:

1. a temperature gradient directed towards the surface, i.e. temperatures inside are higher than on the outside giving rise to a higher partial pressure that drives the evaporating liquid to the surface

2. consequently, the superficial layer does not dry out completely and the surfaces remain permeable

3. the liquid evaporating inside the product is emitted through the pore structure of the solid material’s macro-capillary system, resulting in a high drying velocity

4. the heating of water and most organic solvents occurs selectively - due to the greater dielectric losses of water as compared to the product to be dried

5. swift and thorough drying of moist products with low thermal conductivity

6. stationary drying of thick layers without frictional losses

7. high total efficiency of energy application

8. high-speed control of the energy transport

9. short processing times, i.e. suitable for automated manufacturing

Together with the appropriate vacuum drying technology, the following advantages for the product are available:

1. Low drying temperatures treat the product gentle

2. No oxygen attack for the product

3. Highly nutritious instant properties

4. Better flavor

5. Less hydroscopic final product

6. Minimal product losses

7. Static drying of thick layers without frictional losses, therefore no mechanic stress for the products.

Application Fields:

Food Industry

Chemical Industry of Fine Chemicals

Semi-Conductor Manufacturing

Pharmaceutical Industry

Technical Specification of Microwave Vacuum Dryer

Items

Microwave   Vacuum Dryer
  HYU-VM-20

Microwave   Vacuum Dryer
  HYU-VM-30

Voltage

380V,50   Hz, 3 Phase
  or as per your request

380V,50   Hz, 3 Phase
  or as per your request

Dehydration   Capacity

0.6-1.0Kg   /Kw/ h

0.6-1.0Kg   /Kw/ h

Microwave   Leakage

0.5   m W/cm2 max

0.5   m W/cm2 max

Appearance

Silver   white stainless steel

Silver   white stainless steel

Frequency

2450±50  MHZ

2450±50  MHZ

Output   Power

20   Kw (Adjustable)

30   Kw (Adjustable)

Cooling   Method

Water   cycle technology

Water   cycle technology

Infrared  Thermometer

Yes

Yes

Vacuum  

from   -0.08 to -0.094 Mpa

from   -0.08 to -0.094 Mpa

Machine   Size

2600x2000x2100   mm

2800x2000x2300   mm

Drying   Temperature

40-85  

40-85  

Vaccum   Gauge

High   accuracy vacuum manometer

High   accuracy vacuum manometer

The   Quantity of trays

Tray   Size940×340×100mmH)
  Tray Quantity
8/sets
  Tray Material
PP+PTFE   Mesh

Tray   Size940×340×100mmH)
  Tray Quantity
10/sets
  Tray Material
PP+PTFE   Mesh

Loading   Area

2.55   m2

3.19   m2

Chamber   Material

304   stainless steel

304   stainless steel

Vacuum   Pump

Water   ring vacuum pump

Water   ring vacuum pump

Video   monitoring system

Yes

Yes

PLC   Control System

Yes

Yes

Touch   Screen

Yes

Yes

Safety   System

Alarm/Warning/Door   Protection

Alarm/Warning/Door   Protection



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