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

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Teil 3 Seite 8-18 Discontinuous sterilisation through strainer basket boiling apparatuses (Kurztechniken C.) Description In terms of the strainer basket boiling apparatus, a rotary cylindrical screen is installed into a horizontal, heatable apparatus. Through sterilisation, a pulpy mass results, which is pressed outward through the rotary screen (mesh diameter approx. 15 to 18 mm) into the boiling item container. Foreign matter is trapped in the interior of the rotary screen and can be cleared from time to time. Economics At a filling of 8 mg, the total sterilisation time is approx. 1.0 to 1.5 h. Driving force for implementation Easy implementation at smaller plants. Reference literature 244 Discontinuous sterilisation using sieve disk dryer (Kurztechniken C.) The strainer disk cooker is a horizontally lying stirring implement where jacket and stir- rers are heated. Here as well, after the sterilisation is finished the pulp mass is pressed into a cooking material container by an installed strainer or a strainer that rotates along the stirrer. The working time for the sterilisation process amounts to only about 1 hour, due to the intensive mixing and the heating of the stirrer. One uses construction sizes of up to 15 tonnes. The stirring implements also have a heated stirrer, which actually are the classical dry melting implements. They serve simultaneously as dryers, and are mainly used in smaller plants with lower throughputs. The sterilisation and drying time is 3 to 5 h with a charge of about 1,5 to 10 t. Driving force for implementation Easy implementation at smaller plants. Example plants Corporate clarification plant of the Kraftisried animal carcass disposal plant, 87647 Unterthingau Corporate clarification plant of the East Bavarian Meat Flour Association, 94447 Plattling Rethmann TBA Genthin GmbH, 39307 Mützel, Germany Oberding animal carcass disposal plant, Germany Reference literature 244

Continuous sterilisation Teil 3 Seite 8-19 Current continuous sterilisators consist of a system of pre-heaters, heaters, and contact stretches. These systems can be constructed horizontally in a separate construction, or vertically as compact systems. In these methods, the raw material is conveyed from the dosage implement, where fat may be mixed into it, into a piston pump which presses the material at high pressure through the entire system. In the pre-heaters, which consist of a cylindrical container with a pipe bundle within, the raw material is heated to approx. 75 to 80 °C, using the exhaust vapour separation after the sterilisation. In a second stage, the heater, the material is brought to a temperature of 133 °C through indirect steam supply. The heater is also de- signed as a pipe bundle heat exchanger. The third stage is the contact system, which must be dimensioned for the maximum throughput volume. The pressure of 3 bar is war- ranted by the pressure keeping system installed at the end of the contact system, which opens only at a pressure of 3 bar. The mixing of the raw material is guaranteed mainly through the pipe system. After the discharge of the sterilised meat pulp, the exhaust va- pour steam is separated in a cyclone and used again for the pre-heating. Applicability and characterisation of the measure [To be completed] Main achieved environmental performance [To be completed] Cross-media effect [To be completed] Economics [To be completed] Driving force for implementing the technique [To be completed] Reference plants [To be completed] Reference Literature [To be completed] 8.2.1.2 Post sterilisation of MBM (Kurztechniken C.) Description Achieved environmental benefits Cross media effects Operational data Applicability

Continuous sterilisation<br />

Teil 3 Seite 8-19<br />

Current continuous sterilisators consist of a system of pre-heaters, heaters, and contact<br />

stretches. These systems can be constructed horizontally in a separate construction, or<br />

vertically as compact systems.<br />

In these methods, the raw material is conveyed from the dosage implement, where fat<br />

may be mixed into it, into a piston pump which presses the material at high pressure<br />

through the entire system. In the pre-heaters, which consist of a cylindrical container with<br />

a pipe bundle within, the raw material is heated to approx. 75 to 80 °C, using the exhaust<br />

vapour separation after the sterilisation. In a second stage, the heater, the material is<br />

brought to a temperature of 133 °C through indirect steam supply. The heater is also de-<br />

signed as a pipe bundle heat exchanger. The third stage is the contact system, which<br />

must be dimensioned for the maximum throughput volume. The pressure of 3 bar is war-<br />

ranted by the pressure keeping system installed at the end of the contact system, which<br />

opens only at a pressure of 3 bar. The mixing of the raw material is guaranteed mainly<br />

through the pipe system. After the discharge of the sterilised meat pulp, the exhaust va-<br />

pour steam is separated in a cyclone and used again for the pre-heating.<br />

Applicability and characterisation of the measure<br />

[To be completed]<br />

Main achieved environmental performance<br />

[To be completed]<br />

Cross-media effect<br />

[To be completed]<br />

Economics<br />

[To be completed]<br />

Driving force for implementing the technique<br />

[To be completed]<br />

Reference plants<br />

[To be completed]<br />

Reference Literature<br />

[To be completed]<br />

8.2.1.2 Post sterilisation of MBM (Kurztechniken C.)<br />

Description<br />

Achieved environmental benefits<br />

Cross media effects<br />

Operational data Applicability

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