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Focus on heavy equipment
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The bentonite drying company in Liaoning produces 100,000 tons of bentonite powder annually and needs to dry the raw materials (moisture content reduced from 25% to 8%). The original coal-fired chain furnace was used for heating, which had problems such as low thermal efficiency (only 65%), high pollution, and poor fuel adaptability. The company transformed it into a coal-fired boiling furnace with a rotary dryer to achieve energy saving and consumption reduction.
The role of coal-fired fluidized bed furnace in bentonite drying
1. Stable heating
Precise temperature control: The hot air output temperature of the boiling furnace is stable at 800-950℃, which is converted into 300-400℃ clean hot air through the heat exchange system and directly passed into the dryer.
2. Strong fuel adaptability
Burning inferior coal: It can be mixed with coal gangue and washed mixed coal, saving 40% of fuel costs.
3. Environmental protection
Low emission: limestone is added to the furnace for desulfurization (desulfurization rate>90%), SO₂ emission<100mg/m³; No black smoke problem, boiling combustion is thorough, solving the problem of black smoke in traditional chain furnaces.
4. Safety protection: equipped with explosion-proof doors and high-temperature alarms to ensure safe operation in bentonite dust environments.
