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Rendering: no waste of energy!

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• .

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.First grind up. Leave to cook for twenty minutes.

Then the flash tank, condensation and disk dryers.

• .

13-1-2015Rendering

.First grind up. Leave to cook for twenty minutes.

Then the flash tank, condensation and disk dryers.

• .

13-1-2015Rendering

.First grind up. Leave to cook for twenty minutes.

Then the flash tank, condensation and disk dryers.

• The industry that processes carcasses and offal, rendering, ensures that

the human food chain remains free from these animal remains.

• They are unsuitable to be reprocessed into anything else but animal feed.

• The rendering process starts when carcasses and offal arrive. First, all is

ground and left to boil for twenty minutes in water at 130°C, then the liquid

is transferred to a flash tank.

• An air-cooled rendering condenser removes most of the cooking steam

under very slight overpressure.

• It aims to condense the steam and cool the condensate to a maximum of

35°C.

• This is necessary as bio waste water purification processes the

condensate and active bacteria in the purification will die if temperatures

reach more than 40°C.

• The reason behind condensing the steam is its awful smell which is

neutralised during this process.

• The broth of meat, which is what is left in the flash tank, is dried using the

heat in disk dryers until it has reached a water content of 5%.

Rendering Case

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Challenge / question

First grind up. Leave to cook for twenty minutes. Then

the flash tank, condensation and disk dryers.

• One of our clients is faced with a high

level of fouling and corrosion during the

process due to aggressive cooking

steam.

• The process operators lack knowledge

of the equipment.

• Production is paramount as the client is

paid according to the number of

processed carcasses and amount of

offal.

• The client requires a solution for the

corrosion problems.

• He would like an operator-friendly

installation that is easy to keep clean

and has an absolute minimum of

downtime.

Rendering Case

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Solution

First grind up. Leave to cook for twenty minutes. Then

the flash tank, condensation and disk dryers.

• All our components that come in contact with

steam are made from stainless steel.

• Clasps on lids enable quick and frequent

cleaning. Inspection eye-glasses are put in

place to keep on eye on things.

• We found out that the operators release

steam of 100°C on the condenser after the

installation restart, even when it is freezing

outside.

• The tubes of every 'normal' condenser that

has welded and/or rolled tube-to-plate

connections would bend due to the less

optimal steam distribution.

Rendering Case

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Solution

First grind up. Leave to cook for twenty minutes. Then

the flash tank, condensation and disk dryers.

• In order to prevent this from happening,

we have welded the tubes in our air-

cooled condenser only on one side.

• The other side has a special sliding

connection.

• Therefore, the tubes are able to

individually expand and shrink free of

tension.

• This prevents other tubes with less steam

from having to bear a transfer of tension

forces.

• The result is a complete and distortion free

cold/hot start condenser.

• The operators can rest assured when

releasing steam in full flow on our

condensers.

Rendering

• Rendering is related to the following products:

• Super heater: http://www.bronswerk.com/en/Superheater/PT86/

• Steam generator: http://www.bronswerk.com/en/Steam-Generator/PT28/

• Separator: http://www.bronswerk.com/en/Separator/PT78/

• Dump condensation system:

http://www.bronswerk.com/en/Dumpcondensation-System/PT21/

• Centrifugal fan: http://www.bronswerk.com/en/Centrifugal-Fan/PT46/

• Air Cooled Heat Exchanger: http://www.bronswerk.com/en/Air-Cooled-

Heat-Exchanger/PT38/

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• Interested? Can we help you with your business?

• Read more about heat exchange solutions for different markets:

• Power: http://www.bronswerk.com/en/Power/MT40/

• Gas: http://www.bronswerk.com/en/Gas/MT14/

• Oil: http://www.bronswerk.com/en/Oil/MT4/

• Chemical: http://www.bronswerk.com/en/Chemical/MT24/

• Air Handling: http://www.bronswerk.com/en/Air-handling/MT30/

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• Can we improve your energy ROI?

• Ask our colleague nl.linkedin.com/pub/bram-marcus/11/24b/34b or contact

our company.

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• Like to know more about our company?

• Have a chat with Bronswerk people via our website or

• Visit our website: http://www.bronswerk.com/en/

• Meet us on LinkedIn.

• https://www.linkedin.com/company/bronswerk-heat-

transfer/products?trk=top_nav_products

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