China Sodium Bicarbonate Powder Grinding Vertical Air Classifier Mill Pulverizer

China Sodium Bicarbonate Powder Grinding Vertical Air Classifier Mill Pulverizer

Air Classifier Mill Pulverizer Features

Suitable for municipal waste incineration, hazardous waste incineration, sludge incineration, cement plants, glass factories, steel mill coke ovens, etc., can remove the acidic substances in the exhaust gas, such as SO2, HCl, etc., to help discharge sewage Enterprises achieve standard discharge.

1.Low failure rate, stable operation, suitable for continuous operation, annual operation time is over 8000 hours;

2.Simple and reliable process, low investment, low operating cost and short construction period;

3.Grinding and classifying integrated design, to achieve the desired product size by adjusting the classifier wheel speed;

4.Grinding is in closed system, little dust, low noise in a clean and environmentally friendly process;

5.Optional explosion-proof design.

Air Classifier Mill Pulverizer Working Principle

Use of Sodium Bicarbonate

Sodium bicarbonate (NaHCO3), used as an adsorbent for flue gas desulfurization, is sprayed into high-temperature flue gas directly, sodium bicarbonate decomposes at high temperature to form sodium carbonate Na2CO3, H2O and CO2. The newly produced sodium carbonate Na2CO3 has a high reactivity at the moment of formation, can efficiently react with acidic substances in the flue gas, remove more than 95% of SO2; the removal rate of HCl can reach 99%.

Principle of chemical reaction of sodium bicarbonate

NaHCO₃ + HCl     →   NaCl  + H₂O + CO₂
2NaHCO₃ + SO₂ +  ½ O₂   →   Na₂SO_{4 + H2O + 2 CO2
NaHCO3 + HF    →    NaF  + H2O +  CO2}

Characteristics of Sodium Bicarbonate Flue Gas Treatment

• The process is simple and reliable;

• The auxiliary (sodium bicarbonate) and the residue are non-irritating and non-toxic;

• The residue is dry solid with a small amount;

• Could adjust sodium bicarbonate input with the concentration of harmful substances;

• Auxiliary costs are higher, but processing costs are low.

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