From an environmental point of view  the use of a shelter on a sinter machine with the hot air overflow into the sintering zone will solve a number of problems:

1.Reduce dust emissions in the sinter machine installation area, that will have a positive effect on the environmental situation in the sinter machines installation and maintenance area.
2.The use of combined blast will make it possible to stop using one of the cleaning units, which was located in the cooling zone in the classical sinter machine operation scheme. The only one main source of emissions remains and it is the exhauster emission in the sintering zone of the sinter machine. Excluding one of the cleaning units will allow us to redirect the saved money on reconstruction or replacement of the cleaning unit after the exhauster with a more productive and efficient one.
3.The use of the scheme with the “bottom-up” hot air overflow into the sintering zone provides a theoretical opportunity to reduce the dust emissions of the finished cake due to the air blowing under the shelter. Potential dust remains under the shelter in the sintering zone.

Fig.1 – 3D model for computational modeling of the gas flow in the sintering and cooling zone.

Fig. 2 — 3D model. Sectional drawing.

Fig. 3 — Velocity field in the profile: hearth, shelter, sintering and cooling zone.

Fig. 4 – Air velocity vectors in the profile of two outermost pallets.

Fig. 5 — Vectors of air flow velocities in the section beyond the mountain, the beginning of sintering.

Fig. 6 — Flow lines. Gas flow pattern.

Fig. 7 — Pressure distribution in longitudinal profile.

Fig. 8 — Cross-sectional pressure distribution.