Anthracite chain furnace
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I would like to learn some knowledge related to chain furnaces used for type 2 anthracite coal (other types of anthracite coal are also acceptable); in particular, I’m interested in how the grate plates are designed. Could you also tell me the advantages and disadvantages of such furnaces?~~
Based on my experience, there isn’t much difference between the grates used for bituminous coal and those used for subbituminous coal. The main differences lie in the arrangement of air preheaters to assist combustion in the heated areas at the rear of the furnace, as well as in the design of the furnace arch. The coverage area of the furnace arch should be greater than that in the case of subbituminous coal. The smoke velocity at the exit of the rear arch and at the throat of the furnace also needs to be properly designed. There are no specific regulations regarding these parameters; they are mainly based on empirical values. I suggest you look up some research papers on this topic – there are quite a few articles available.
Thanks to LS. I’ve read some articles; usually, a long and low rear arch is used in combination with a high and short front arch~~ I also understood this by looking at the diagram~~