Specific Surface
Specificenergyrequirementof
grindabilitytester
Types of Grate Coolers
A)Traveling grate cooler
B) Reciprocating grate cooler
Grate line ConfigurationGrate line Configuration
Single grate cooler
Combi-coolerCombi-stage cooler
Mechanical Features
Grate
Plates
• Perfect in critical zones (nose and hook
• Residual stresses: must be avoided by
heat treatment for stress ...
1. Chromium (Cr):1. Chromium (Cr):
•Melting point 1890o
C
•It increases the tensile strength of steels by
80-100 N/mm2 per...
1mm
Aircompartments
&flap valves:
Discharge hopper
of UnderGrate
Grate cooler operation and controGrate cooler operation and contro
ClinkerTemp.
AirTemp.
500500
10001000
15001500
250250
500500
750750
10001000
20-55% 0-40% 0-40% 0-45%
Hammer type breakerHammer type breaker
11m/sm/s
4040m/sm/s
22m/sm/s
Grateplate
problems
Air beam technology
DesignDesign
features offeatures of
modernmodern
grategrate
coolercooler
Moving FrameMoving Frame
2562
±2
840
±1
840
±1
682
±1
3452±4
Moving frames Central Beam
Clinker grate cooler
Clinker grate cooler
Clinker grate cooler
Clinker grate cooler
Clinker grate cooler
Clinker grate cooler
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Clinker grate cooler

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This presentation shows the principles of working of clinker coolers and gives some examples for clinker cooler modifications.

Published in: Engineering, Technology, Business
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Clinker grate cooler

  1. 1. Specific Surface Specificenergyrequirementof grindabilitytester
  2. 2. Types of Grate Coolers A)Traveling grate cooler
  3. 3. B) Reciprocating grate cooler
  4. 4. Grate line ConfigurationGrate line Configuration Single grate cooler Combi-coolerCombi-stage cooler
  5. 5. Mechanical Features
  6. 6. Grate Plates • Perfect in critical zones (nose and hook • Residual stresses: must be avoided by heat treatment for stress relieving
  7. 7. 1. Chromium (Cr):1. Chromium (Cr): •Melting point 1890o C •It increases the tensile strength of steels by 80-100 N/mm2 per1% Cr •Increases wearresistance •High temperature strength 3-Clinker hardness3-Clinker hardness (500 – 700) Hv 22--Nickel (NiNickel (Ni):): •Melting point 1458oC •High temperature strength
  8. 8. 1mm
  9. 9. Aircompartments &flap valves: Discharge hopper of UnderGrate
  10. 10. Grate cooler operation and controGrate cooler operation and contro
  11. 11. ClinkerTemp. AirTemp. 500500 10001000 15001500 250250 500500 750750 10001000 20-55% 0-40% 0-40% 0-45%
  12. 12. Hammer type breakerHammer type breaker
  13. 13. 11m/sm/s 4040m/sm/s 22m/sm/s Grateplate problems
  14. 14. Air beam technology
  15. 15. DesignDesign features offeatures of modernmodern grategrate coolercooler
  16. 16. Moving FrameMoving Frame 2562 ±2 840 ±1 840 ±1 682 ±1 3452±4 Moving frames Central Beam
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