Д type furnace in operation, is the empty layer as an important basis for the adjustment of the production, many
people are based on an empty layer data
To adjust the coal and ash, and as a main indicator of stable production.
Empty layer from fire detecting orifice to furnace material layer on the surface of the roof this distance.
Empty layer itself is meaningless, the empty layer and calculate the material thickness is an important parameter
in the gasification, if is in 4.2 meters pin measured data can be calculated the thickness of material layer
(layer material including dry, dry distillation, reduction, oxidation and the sum of the ash layers).
Material thickness = 4.2 - empty layer height
If empty layer of 2.3 m, the thickness of material layer is 1.9 meters, also can calculate the thickness of coal
seam (in general will be dry, dry distillation furnace, reduction and so on three layers combined called coal seam)
Coal thickness = 4.2 (empty layer fire + + grey layer), including dry, dry distillation layer of coal seam and
the reduction zone.
If empty layer is 2.3 meters, fire layer is 0.15 meters (150 mm), the ash layer is 1.1 meters (1100 mm), so, the
thickness of coal seam is 0.65 meters (650 millimeter).
Easy to determine due to the empty layer, material layer can't directly, and empty and can reflect the material
layer or coal seam (material layer and thickness of coal seam and gasification in the main data), so it's important
you empty layer of the data. |