A total of 85 examples were equipped with a new combustion-chambered boiler with an " IfS " mixer-preheater.
22.
This is not surprising given that the company had previously manufactured parts for Tilley, although many improvements were incorporated such as a captive preheater torch.
23.
This was built by Henschel between 1953 and 1956 in Kassel, and installed at the Brunswick repair depot, along with a mixer preheater system.
24.
These problems led to the subsequent sealing off of the preheater drum, over the period 1959-1961, and the locomotives were then worked conventionally.
25.
There are alternative set-ups such as placing the calcium looping plant in the preheater section so as to make the plant as efficient as possible.
26.
The grate preheater consists of a chamber containing a chain-like high-temperature steel moving grate, attached to the cold end of the rotary kiln.
27.
Because this accounts for only 40 % of the system heat input, it can be done with lower heat wastage than in a simple suspension preheater bleed.
28.
Elements such as lead and cadmium preferentially react with the excess chlorides and sulfates in the section between the rotary kiln and the preheater, forming volatile compounds.
29.
The total heating surface amounted to 17, 050 m ? the superheater surface 3, 875 m ?and the air preheater surface 8, 786 m ?
30.
In the preheater and the kiln, this SO 2 reacts to form alkali sulfates, which are bound in the clinker, provided that oxidizing conditions are maintained in the kiln.
