hellow sirs ,
can you plz explain e in brief regarding how to increase the cooler recuperating efficiency
Raj Sahu
There are many reasons of poor heat recuperation efficiency in grate cooler:
1.Lower than the desired material bed in the recuperation zone of the garte cooler.
2.Mechanical breakdown of the seals within an airbeam system-moving rows in modern CFG cooler.Beams and plates damaged due to high temperature.
3.Poor air distribution inside the cooler and limitation to get fine air adjustments
4.High wear on plates
5.Very high plate velocity of air ,which lead to fludization of material
6.Poor grate speed control
7.Inappropriate control loops
8. Inadequate seal between plates
9.Inadequate seals between chambers, etc.,etc.
Heat recuperation efficiency is also depends on design of the grate cooler,fourth generation coolers have recuperation efficiency of 75-80%, Third generation cooler efficiency varies in the range of 70-75%,Second generation is 65-70% and first geneartion cooler have less than 65% efficiency.