The flow pasteurizer can be produced in various lengths and widths.
Flow pasteurization in the continuous process can be carried out in two ways:
- Over-spraying over the entire length. This would mean that both the pasteurizing zone and the cooling zone are sprayed with hot water and then with cold water.
- Spray with foot bath. This is the best method and most effective method to ensure a continuous process and increase the quality of the product.
When spraying with a footbath, the pasteurisation area is sprayed with hot water from above as well as the container is immersed in a height- adjustable foot bath that can be adjusted up to 150 mm. The heat transfer so called convection is further enhanced by this effect.
Construction
The continuous or tunnel pasteurizer is produced as a self-supporting bucket construction. The covers lie loosely in the water lock. The pasteurizing and cooling zones are sprayed from above through special spraying systems (spraying sticks for screw connection with milk pipe connection DIN 11850) as well as hollow cone spray nozzles made of PP "blue").
The tub has a one- sided slope. On the operating side, water boxes and additional cleaning doors are installed to clean the system from one side.
The disc valves located in the bottom of the water boxes are grouped together in a collection line. The piping between the spray booths and waterboxes (pumps) is made of high-quality stainless steel W. St. 1.4571 with double-sided milk tube fittings and disc valves for easy disassembly and / or pump exchange.
If possible, the tub heat exchangers are placed on the system and screwed. Each zone is equipped with thermometer and manometer. To control the temperature in the pasteurizing zone, Pt100 is used together with 3rd step stepping regulators and electrically controlled control valves.
The infeed belt is rebuilt to prevent a larger vapour discharge. The pasteurizing zone is insulated on the sides, cover and bottom 50 mm and is sealed with stainless steel jacket. For the insulation, aluminum-lined mineral wool is used on both sides.
Specifications
Type | Hot water spraying PHW 15/2,0 |
Performance | 30.000 glasses / hour |
Container Size | Ø 45 mm, H: bis ~ 100 mm |
Dimensions
Total length including an output band | ~ 15.900 mm |
Total width including water boxes | ~ 2.700 mm |
Total width of span | ~ 2.100 mm |
Net width | ~ 2.000 mm |
Height | ~ 1.500 mm |
Cube length | ~ 14.000 mm |
Working height | ~ 1.050 mm, ± 50mm |
Usable area in the pasteurizer | ~ 28m² |
Drives
Drives | LENZE-14/5000 gearmotor 230/400V, 50Hz 22/5000 with frequency converter |
Pumps | Stainless steel pumps 230/400 V |
Conveyor belt | RMCC Rexnord Serie 2000 mit DTS-C System for Product Transfer |
Material strengths and qualities
Cube | stainless steel, W.St.Nr. 1.4301, 3,0 mm |
Cover | Stainless steel, W.St.Nr. 1.4301, 1,5 mm |
Sieving tray | Stainless Steel, W.St.Nr. 1.4301, 2,0 mm |
Frame | Stainless Steel, W.St.Nr. 1.4301, 3,0 mm |
Hot water piping | Stainless steel, W.St.Nr. 1.4571 V4a |
Cold water piping | Stainless steel, W.St.Nr. 1.4571 V4a |
Curtains | Silicone rubber transparent, 2,5 mm thick |
Screen boxes | There are 2 changing screens |
Three-track infeed (RMCC) | ~ 4.000 mm long, 1 x 127,3 mm, 2 x 85 mm |
4-lane output strip (RMCC) | ~ 4.000 mm long, 1 x 127,3 mm, ~ 4.000 mm long 3 x 85 mm (with different speed) Curve, 90 ° curve, ~ 2.000mm Straight n. curve |
Cover | Loose in the water lock with handles |
Heating
2 pieces external tube heat exchanger (lying) made of stainless steel W.St. 1.4571 / 1.4301. Incl. Footboard and insulation on the long side. Operating pressure max. 10 bar | |
Steam & Condensation connection | DN 65, for pre-heating and post-heating (energy saving) /td> |
Control | 2 pcs. Bälz motor valve with control unit (3-step step control), 2 pieces float condenser emptier |
Temperature control | 2 pcs Pt 100 |
Cooling
1 Piece external tube heat exchanger (lying) made of stainless steel W.St. No. 1.4571 / 1.4301. 1 control valve for well water control. 1 additional water box with pump | |
Cooling medium | Well water (about 12 ° C) |
Control
Stainless steel control cabinet completely wired. | |
PLC System | |
Other controls Siemens/EATON | |
S7-200SP including visualization | |
Touchpanel 7“ with serial. Interface | |
Cabinet type Rittal stainless steel incl. forced air fan | |
Flash (built up) | |
Heating control via panel | |
Incl. potential-free contacts and interface | |
Temperature monitoring | |
Level control | |
Speed control main band |
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