boiling furnace
Thread Content
If a relatively large boiling furnace is to be designed (with an annual production capacity of 100,000 tons of sulfuric acid) and a large amount of raw material is used, how can the feed be distributed evenly within the boiling furnace in order to reduce dead ash? Thank you!
It’s a relatively small furnace, so there’s no need to worry about cold ash. If extra safety is required, simply design the furnace’s ash discharge ports properly during the design phase.
What raw materials do you use? The size of the boiling furnace varies depending on the raw material; zinc concentrate requires approximately 70 square meters of space for such a furnace, while pyrite only needs 28 square meters. Pyrite requires just one feeding port, whereas zinc concentrate generally needs two feeding ports
The raw material used is pyrite, but 28 square meters is a bit small, isn’t it? Are there any things to keep in mind regarding the feed inlet during the design process? Thank you!
For a boiling furnace capable of producing 100,000 tons of sulfuric acid per year, design is not an issue at present; in China, boiling furnaces with an annual production capacity of 300,000 tons are quite common. If you have a large amount of raw material and are concerned about the formation of cold ash, it is recommended to increase the air velocity through the small holes in the air cap slightly. The main reasons for the formation of cold ash are high-temperature scorching and poor fluidity on the bubbling bed; therefore, increasing the air volume can help prevent the occurrence of cold ash. In addition to proper design, control during actual operation is also very important. These are my personal opinions; please feel free to correct me.
It’s really a small furnace; no problem. If you’re still worried, go and check out manufacturers with similar scale