In the bentonite processing industry, drying is one of the key production links, and coal-fired boiling furnaces have long been widely used to provide the heat source required for drying due to their high calorific value and low cost.
High-efficiency drying, but energy consumption and pollution problems are prominent
Bentonite drying requires stable and high-temperature hot air. Coal-fired boiling furnaces can provide high-temperature hot air above 400°C, which meets the requirements of rapid dehydration of bentonite and effectively improves production efficiency. The person in charge of a bentonite processing company said: "Compared with electric heating or gas hot air furnaces, coal-fired hot air furnaces have lower operating costs and are especially suitable for large-scale continuous production."
Technical improvement: New coal-fired boiling furnaces improve energy efficiency and reduce emissions
In order to meet environmental protection requirements, some equipment manufacturers have launched improved coal-fired boiling furnaces, using technologies such as stratified combustion, flue gas circulation and bag dust removal to increase thermal efficiency to more than 80%, while reducing sulfide and particulate matter emissions. In addition, some companies combine waste heat recovery systems to further reduce energy consumption.
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