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298 94 307/02 Untersuchungen zum Stand der Umsetzung des ...

298 94 307/02 Untersuchungen zum Stand der Umsetzung des ... 298 94 307/02 Untersuchungen zum Stand der Umsetzung des ...

bvt.umweltbundesamt.de
von bvt.umweltbundesamt.de Mehr von diesem Publisher
03.12.2012 Aufrufe

Teil 3 Seite 4-5 Table 4-2: Comparison of consumption data of water revolution pumps and condensation scalding water circulation spray scalding Condensation scalding Energy demand 4 pumps * 5 kW * 8h * 255 days = 4 ventilators * 4 kW * 8h * 255 days = Heat consumption 40.800 kWh/a 32.640 kWh/a 1450 kWh * 255 days = 369.750 kWh 3,116 kWh/SE * 600.000 SU = 1.869.600 kWh/a to heat the water bath not applicable to heat the pigs Water demand daily water bath Cross-media effect [to be completed] Economics [to be completed] 25 m³ * 255 days = 6.375 m³ not applicable 11,625 l/SE * 600000 SE = 6975 m³ Driving force for implementing the technique [to be completed] Reference plants [to be completed] Literature [to be completed] 4.1.7 Pig hair and toe-nail removal Reference to actual BREF Reference to actual BREF 2,5 kWh/SU * 600.000 SU = 1.500.000 kWh/a Leaking loss 1l/SE * 600000 SE = 600 m³ - Re-use of cooling water from the singeing kiln for de- hairing of pigs (4.2.2.9.1- p.204) - Control of the water supply to de- hairing machines (4.2.2.9.2 - p.205) - Replacing irrigation pipes at the top of de-hairing machines, with nozzles (4.2.2.9.3- p, 205) 4.1.8 Pig singeing - Heat recovery from gases to preheat water (4.2.2.10.1- p.206)

Teil 3 Seite 4-6 - Efficient use and design of singe pipes (4.2.2.10.2- p.206) - Post singeing showering with flat jet nozzles (4.2.2.10.3 - p. 206) Reference to actual BREF - Dry evisceration (4.2.2.12.1- p.209) 4.1.11 Chilling - (but most refrigeration techniques may be covered in the F & M BREF) - Heat recuperation from pig singeing exhaust gas (4.2.2.10.4- p. 207) - Grinsted system - re- use of cooling water from the singeing kiln for hairing (4.2.2.10.5 - p. 207) 4.1.9 Evisceration - Saw sterilisaion in a cabinet with nozzles with cold and hot water (4.2.2.12.2- p,209) - Integrates transport and cooling of red offal (4.2.2.12.3 -p. 209) - Use of fat separators (4.2.2.12.4- p. 210) 4.1.10 Splitting Reference to actual BREF - NOT showering pig carcases before hey are chille in a chilling tunnel (4.2.2.14.3- p.212) - Recuperation from refrigeration plant (4.2.2.14.4- p.213) Reference Advantages and disadvantages of Binary Ice (AT 3535005) 4.1.11.1 Binary Ice as Cooling Fluid (Secondary Refrigerant) Description Binary Ice is a "liquid ice" in the form of a suspension of minute ice crystals ( not granu- lated ice!) in an aqueous solution or mixture. This solution or mixture contains a freezing point depressing substance, which enables the simultaneous presence of ice crystals (consisting of pure water) and fluid. The size of the ice crystals is between 1/100 and 1/10 mm (10 – 100 microns). These crystals have no abrasive effect on pipes or valves The freezing point depressing sub- stance used for closed systems is an ethanol based and corrosion protected liquid TALIN (certified for use in the food industry), and for open systems common NaCl is suitable for immersion of fish or packed food. There are presently two different technologies available to produce Binary Ice: 1. Binary Ice is generated with a special evaporator (icegenerator) 1 which is sup- plied with unfrozen fluid by a pump 2 from a Binary Ice storage vessel 3. A conven-

Teil 3 Seite 4-5<br />

Table 4-2: Comparison of consumption data of water revolution pumps and condensation<br />

scalding<br />

water circulation spray scalding Condensation scalding<br />

Energy demand 4 pumps * 5 kW * 8h * 255 days = 4 ventilators * 4 kW * 8h * 255 days =<br />

Heat consumption<br />

40.800 kWh/a 32.640 kWh/a<br />

1450 kWh * 255 days = 369.750<br />

kWh<br />

3,116 kWh/SE * 600.000 SU =<br />

1.869.600 kWh/a<br />

to heat the water bath<br />

not applicable<br />

to heat the pigs<br />

Water demand daily water bath<br />

Cross-media effect<br />

[to be completed]<br />

Economics<br />

[to be completed]<br />

25 m³ * 255 days = 6.375 m³ not applicable<br />

11,625 l/SE * 600000 SE = 6975<br />

m³<br />

Driving force for implementing the technique<br />

[to be completed]<br />

Reference plants<br />

[to be completed]<br />

Literature<br />

[to be completed]<br />

4.1.7 Pig hair and toe-nail removal<br />

Reference to actual BREF<br />

Reference to actual BREF<br />

2,5 kWh/SU * 600.000 SU =<br />

1.500.000 kWh/a<br />

Leaking loss<br />

1l/SE * 600000 SE = 600 m³<br />

- Re-use of cooling water from the singeing kiln for de- hairing of pigs (4.2.2.9.1-<br />

p.204)<br />

- Control of the water supply to de- hairing machines (4.2.2.9.2 - p.205)<br />

- Replacing irrigation pipes at the top of de-hairing machines, with nozzles<br />

(4.2.2.9.3- p, 205)<br />

4.1.8 Pig singeing<br />

- Heat recovery from gases to preheat water (4.2.2.10.1- p.206)

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