Air blast Quick Freezing Process and Flash Freeze Machine
Air blast Quick freezing (Individual Quick Freezer) is rapid freeze of food by exposure to a blast of air at a very low temperature.
Unlike slow freezing, very small crystals of ice are formed which do not rupture the cells of the
food and so the structure is relatively undamaged.
A freeze tunnel is a process where the materials to be frozen are placed on an endless
conveyor and passed through the tunnel where the refrigerants are used to cool the air
and through circulation allow the material to become frozen.
In the freezer the product is individually quick-frozen. This means that a high capacity cold airflow
is blowing through the product. In the first stage brings the product on the temperature of -5°C. The second
is cooled down further till -18°C; a retention time in a freezer is minimum 9 minutes.
Tunnel quick freezer application
Tunnel quick freezer is one of the idea IQF equipment, which is suitable for frozen fruits & vegetables, meat, seafood, such as asparagus, broccoli, carrot, strawberry, beef, divided meat ,shrimp, sliced fish, meat ball, etc.
Tunnel Quick Freeze Machine Features
Tunnel Quick Freeze Machine adopts environment friendly and high efficient compressor and environmentally friendly refrigerant
R404 or R507.
Tunnel Quick Freezer is an efficient impingement mesh belt tunnel quick-freezing device
Due to blast air of higher velocity in freeze tunnel with the unique air ducting to achieve a uniform
air distribution, unfrozen food material like fries, chips and fresh vegetable is fully exposed in the strong cold air.
There are independent vibration devices under the belt mesh; the mesh space is not block with frost,
less wind resistance reducer, much stronger cold air flow smoothly. Also freezing materials will become
into individual frozen food without agglomerate and sticks.
Tunnel Freezer Technical data
|
No. |
Item |
|
|
1 |
Type |
Tunnel Quick Freeze Machine |
|
2 |
Application Freezing Products |
fruits & vegetables, meat & seafood |
|
3 |
Non-frozen Products Type |
Bulk without any package or put in tray |
|
4 |
Non-frozen Products Arrangement |
Place on mesh belt directly |
|
5 |
Freezer Working |
Continuous freezing |
|
6 |
Freeze Method |
Blast freezing |
|
7 |
Air Supply Mode |
Strong convective blowing |
|
8 |
Non-frozen Products Temperature |
Less than 20℃ |
|
9 |
Frozen Products Temperature |
-18℃,Central temperature |
|
10 |
Freezing Time |
10-45min |
|
11 |
Freezing Temperature |
-35℃ |
|
12 |
Mesh Belt Material |
304 Stainless steel |
|
13 |
Defrosting method |
Water Defrosting |
|
14 |
Library Body Thickness |
120 mm |
|
15 |
Bulk density of Polyurethane Plate |
42 kg/m³ |
|
16 |
Library door seal |
Equipped with frame heating device |
|
17 |
Energy saving |
Multi block air strips both inlet and outlet |
|
Specification |
SSD300 |
SSD500 |
SSD1000 |
SSD1500 |
|
Freezing Capacity |
300Kg/h |
500Kg/h |
1000Kg/h |
1500Kg/h |
|
Refrigerant |
R404 or R507 |
R404 or R507 |
R404 or R507 |
R404 or R507 |
|
Cold consumption |
54KW |
96KW |
170KW |
255KW |
|
Freezer Power |
8KW |
14KW |
21KW |
30KW |
|
Dimension |
12600*2700*2300mm |
13800*3200*2500mm |
22900*3700*2500m |
26400*4200*2500m |
|
Mesh Width |
1500mm |
2000mm |
2500mm |
3000mm |
|
Refrigerating unit |
Double screw compressor with condenser |
|||
Watch a practical tunnel quick freezer running video
