Aseptic food processing
Transcription
Aseptic food processing
Aseptic food processing Sterilized packaging material Sterile surrounding Commercially sterile food Aseptic transfer Aseptic packages Water ring compressor Rubber roller Peroxide bath Water separator Product Peroxide can Air superheater Cooler Tube heater Tight tube Air Sterile area Peroxide Product Water Packaging material TBA/3_600V Step up conditions 10. Cleaning 9. End of Production 8. Filling / Production 7. Start sequense 6. Tube Heater -high temp. 5. Sterilizersignal: TO / FROM 4. Sterilizing / Cooling 3. Tube sealing / St.Air temp. 2. Preheating / Preh. finished TBA/3_FINO Step up conditions . Cleaning push End of Production push within 90 Sec. A-valve close,Dropchute back in , After 7 Sec. C-valve slowly close (4-12s),After 10-12Sec. main motor stop,LS,SA nozzles back . . .. . Tube heat temp .back to 240 c/235 c , Splash valve(Y31) open, Boosted cooling valve(Y33) open ;Jet diverter valve(Y41) close, countdown 3 mins ;Jet diverter valve reopen after 3 mins. In production Production 7 Sec.countdown OK Drop chut out;Package counter on . 29s/26s countdown OK C-valve open ,then after 1-2Sec. A-valve open ,Jet diverter valve open, countdown 7 Sec. Filling Push within 20Sec. after tuber heater w2 ok Start Sequense Flash Main motor On;SA,LS nozzles in position;Driven bending roller run; Tube sprinkler valve (Y31) close; Boosted cooling valve (Y33)off;Heat exchange valve(Y44) on. Hour meter run;Countdown 29s/26s. Tuber heater w2 ok . Tube Heater -high temp. Push . . Tuber Heater(w2)on(470 c/500ml,480 c/250ml), LS temp. to w1(210 c) countdown 20s after Tuber heater w2 temp .reached. Signal OK No action after countdown 20s Countdown 3 mins.Inch Signal from Sterilizer A104 B4 light . Signal to Sterilizer Push K103 act;B-Valve close. 10 mins. reached Cooling 30 mins. countdown reached Sterilizing Push . 280 C reached St.Air temp. 29s or 26s count down arrived Tube Sealing Push Boosted cooling valve (Y33) open; Jet diverter valve(Y41) close; Countdown 10 mins. . . c/500ml,240 c/250ml); Tube Heat on (235 Countdown 30 mins. Main motor stop ;SA,LS nozzle back;Tube sprinkler valve(Y31) open ;B-valve(Y8,Y67) open;B-valve temp. monitor start to . read temp . value(280 c);Hour meter stop. Flash SA,LS nozzle in position ;Main motor run ;Driven berding roller turn; countdown 29s (250)/26s(500); Cutting valve(Y60,Y61) on ;IH on; Hour meter run. 5 mins.countdown OK Ready for tube sealing. Preh. Finished Keep pushing till compressor arrive 0.45bar Preheating Flash Power,Cooling water, Air . Compressor run;Supper heater on (360 c);LS (W2) SA heating;H2O2 ` supper heater pump run;Lub.pump run;Coneyor run ;After temp. of ` LS and SA arrived ,Start countdown 5 mins. Water to compressor valve(Y32)open;Tube sprinkler valve(Y31)close; Jet diverter valve(Y41)open;Paper spliceing element on. Sterile air system Checking, tightness Check that the pipe connections and unions are tight. 1 2 3 4 5 6 7 8 9 10 11 Compressor Water separator Valve, drainage Valve, boosted cooling Valve, sealing water for compressor Valve, boosted cooling Diversion valve Ejector Overflow valve Pressure guard Air superheater 12 Air superheater temperature 13 SA heater 14 SA heater temperature 15 LS heater 16 LS heater temperature 17 Sterile air cooler 18 Sterile air temperature 19 Jet diverter valve 20 Suction filter 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Product valve “A” Sterile air valve “B” Sterile air temperature Proximity switch sterile air valve (B) Steam barrier valve (C) Steam temerature Proximity switch steam barrier valve (C) Air knife Edge dryer 28 27 Peroxide bath Peroxide bath cooling Tube heater Float Valve, sprinkler Steam trap 29 30 26 25 31 21 13 35 23 14 22 24 20 15 16 1 11 32 5 18 19 2 33 3 4 34 10 17 7 9 12 8 6 GBAABB77 89 Doc No MM-80269-0102 TBA/3 Tetra Fino Issue 9510 MM 175-12 1(1) Compressor of water ring type Overhaul 1 2 3 4 Shaft Motor Pump housing rotor 68 MM 160-32 4(5) Issue 9508 Doc No MM-80269-0102 TBA/3 Tetra Fino Principle of constant flow valve Rubber ring Constant flow rate of water Water with fluctuating pressure Water at low pressure Constant flow rate Water at high pressure Technical Training Centre Lund, Sweden Constant flow rate Machine type Issue 1/9904 OH 819 Water separator Dismantling, Cleaning, Checking float a) Detach the entire water separator from the machine. b) Remove the flanges (2) and (3). c) Check that float mechanism (4), the container and the piping. If necessary use a deliming agent. Fitting a) Check the O-ring (5,6) of the flanges and the pipe-union seals. b) Fit the water separator. c) After starting the compressor, check that no water comes of the overflow pipe (7). If so, the water separator must be removed again and the function of the float checked. Note! Water may also come out of the overflow pipe if the sterile air cooler is blocked, see page 165-13 3(3) 1 2 3 4 Pressure gauge Upper flange Lower flange Float mechanism 5 O-ring 6 O-ring flow 7 Overflow pipe 73 Doc No MM-80269-0102 TBA/3 Tetra Fino Issue 9508 MM 162-21 1(1) Air superheater Air Hot air Technical Training Centre Lund, Sweden Machine type Issue Tetra Brik Aseptic 1/9504 OH 537 Sterile air cooler Checking tightness Loosen the connections (1) and (2) on the cooler and the connections (3) and (4) on the cylinder. Connect a pipe (nipple TP No 90030-115) (5) to a hose (9) put into a tank of water (6). Plug the upper connection with a nipple (TP No 90030-115) and a plugged pipe (7). Plug the lower pipe (1) with a welded-up coupling (TP No 90330-064). Plug the lower connection of the cylinder with a welded-up plug (TP No 90224097) (8). Remove the fuses to the air superheater and step up the machine to Preheating. Check that there is no bubbling in the tank (6). Replace the fuses and once again check that there is no bubbling. When the machine has reached the Ready for sterilization state, disconnect the sterile air going to the tube by removing the quick coupling on the B-valve. Turn the jet deflector valve by pushing the cylinder to the outer position. Once again check that there is no bubbling. Step down the machine to Cooling and check that water is sucked up into the hose (9). 1 2 3 4 5 6 7 8 9 Connection Connection Connection Connection Pipe Tank of water Plugged pipe Welded-up plug Hose 79 Doc No MM-80269-0102 TBA/3 Tetra Fino Issue 9508 MM 165-11 1(3) Sterilization liquid This section contains information on how to proceed when handling the hydrogen peroxide used as sterilisation liquid • Concentration ! WARNING! Risk of personal injury! Hydrogen peroxide. Follow the Safety precautions. Concentration 1 The following equipment is required: • aerometer with termometer • graduated cylinder of plastic with an inside diameter of 35 - 50 mm CAUTION! The equipment must be thoroughly cleaned. Open the valve (arrow) and draw approx 250 ml of hydrogen peroxide from the machine into a clean vessel. Pour a small amount of hydrogen peroxide into the graduated cylinder. Lower the areometer into the cylinder making sure that there is enough to float the areometer. If there are air bubbles on the areometer, stir gently until the bubbles disappear. Read the density at the liquid level on the areometer and at the same time read the temperature. Doc No OM-80268-0101 TBA/3 Fino 113 Sterilization liquid 2 The hydrogen peroxide concentration in terms of per cent by weight can now be read from the nomogram. Temperature 80 70 60 Density g/cm3 1.200 50 By means of a ruler, join the density value of the sample (on the density scale) with the temperature value on the temperature scale. If the hydrogen peroxide concentration is incorrect If the concentration is below 30% or above 50%, replace the hydrogen peroxide. Hydrogen peroxide %/weight 1.190 1.180 50% 40 1.170 45% 1.160 1.150 30 40% 1.140 20 35% 1.130 1.120 10 30% 1.110 1.100 25% 0 1.090 20% 1.080 1.070 15% 1.060 1.050 10% 1.040 1.030 5% 1.020 1.010 0% 1.000 114 Doc No OM-80268-0101 TBA/3 Fino RUN Temperature regulating principle PLC 0 Technical Training Centre Lund, Sweden 240 Machine type Issue 1/9601 OH 574 Principle of tube heater TBA/3 Temperature on inside of packaging material Peroxide on packaging material Product Peroxide Cooled air Technical Training Centre Lund, Sweden Machine type TBA/3 Issue 1/9107 OH 414 L1 L2 L3 Tube heater TBA/3_600V, TBA/3 Fino N F003A F003B A307 K10 9 10 27 K307 26 18+ 23 17 24 19 M.B44 M.R34 Yellow 1 Red 2 20 SP1 SP1 Production Disconnected 0-3 min SP1 Product(AP) Valve Graph for the cylinders and the drive motor The synchronization of the cylinders must follow the graph. Sterilization off Preheating off Sprinkler on Production off Production on Tube sealing Sterilization on Cooling on Sprinkler on Sprinkler off Preheating on The closing time of the C valve varies (4-12sec), depending on product viscosity. The higher the viscosity, the longer time. Adjust vith the throttle (25). Open Closed A Tight tube feed 26 - 46 sec B Open Closed C Open Closed 5 sec 4 - 12 sec Open Closed Drive Motor 13 sec 4 sec Tight tube feed 26 - 46 sec A) Product B) Hot air or cleaning C) Steam 21 22 23 24 25 Open position Close position Exhaust Air in Throttle 25 All valves are shown in closed position. the cylinders are vented and springs are closing them. 44 Doc No MM-80269-xxxx TBA/3 Tetra Fino Issue 9912 MM 127-XX x(x)