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Content archived on 2022-12-27

HEAT RECOVERY FROM ROTARY DRYERS

Objective

The primary aim would be to demonstrate the viability of heat recovery from rotary dryer exhausts. The rotary dryer exhausts are corrosive (acid gases) and carry fine dust particles. Heat exchange in such situations can lead to severe problems with fouling and corrosion. The project will show these problems can be successfully overcome.
The secondary aim would be to demonstrate the effective use of low grade recovered heat in a ring-main system, to users having varying and different requirements.L%
The absolute energy savings are 2335 TEP/yr, as given in the table below :

a) There are two innovative aspects :
1) The heat recovery unit installed in the rotary dryers exhaust will be of a novel design to be able to function reliably in the severe corrosive and fouling conditions.
2) A significant proportion of the heat recovered would be used to preheat process slurry. The use of low grade heat to heat slurry is novel for this industry.
Both of these aspects have direct applicability in many industrial processes.
b) The Project involves the design and installation of a Heat Recovery System for Cleveland Potash Ltd at their mine on North East Coast of England. Cleveland Potash mine and refine Potassium chloride (potash) which is dryed in oil fired rotary dryers. The Heat Recovery system will recover waste heat from the exhaust gases of the rotary dryers into a hot water ring main serving various heating requirements throughout the plant.
c) The technology will make heat recovery viable in areas which may not have been viable previously. The payback onthe capital invested, in energy cost saving, is anticipated to be less than 4 years.

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Programme(s)

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Topic(s)

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Call for proposal

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Funding Scheme

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DEM - Demonstration contracts

Coordinator

OSPREY CORPORATION LTD
EU contribution
No data
Address
UNITS 82-85 JOHN WILSON BUSINESS PARK, WHITSTABLE
CT5 QU KENT SE
United Kingdom

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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

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