TSM (Sodium bicarbonate) Air Classifying Mill

Remove more than 95% of SO2 and 99% of HCl in exhaust gas

It is widely used in municipal waste incineration, hazardous waste incineration, sludge incineration, cement plants, glass plants, steel plants coke ovens and other industries to remove acidic substances in exhaust gas, such as SO2, HCl, etc.

According to different materials and application industries, the production capacity and particle size range will be different.
Please contact our engineers to customize the equipment for you. Our experts will contact you within 6 hours to discuss your needs for machine and processes.

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Working Principle

The raw material of sodium bicarbonate (baking soda) is uniformly sent to the grinder through the quantitative feeder in the lower part of the silo for ultra-fine grinding, and the product with particle size (D90: 20μm or the product size can be flexibly adjusted according to the need of deacidification) is transported by the high-pressure fan. Go to the flue gas pipe and spray it into the flue gas, and quickly produce a chemical reaction with the acid-containing flue gas. At high temperature, sodium bicarbonate decomposes into sodium carbonate Na2CO3, H2O and CO2. The newly formed sodium carbonate Na2CO3 has high reaction activity at the moment of formation, and can efficiently react with the acidic substances in the flue gas.

Chemical reaction principle of sodium bicarbonate

NaHCO3 + HCl → NaCl + H2O + CO2
2NaHCO3 + SO2 + ½ O2 → Na2SO4 + H2O + 2CO2
NaHCO3 + HF → NaF + H2O + CO2

Advantages of the special sodium bicarbonate grinder produced by ALPA

Dry desulfurization process treatment

Dry process desulfurization can remove more than 95% of SO2 and 99% of HCl

Easy to take apart and wash

Compact structure, easy to disassemble and wash. Optional CIP.

Quick maintenance

The mill with a power-assisted flip device, and the fan has an overhaul hole.

Low investment and low cost

The process is simple and reliable, low investment & operating cost.

Low failure rate and stable operation

Suitable for continuous operation, annual operation time exceeds 8000 hours.

Large air volume inlet design

The design of large air volume can reduce the grinding temperature.

Clean and environmentally friendly

The whole system is closed with less dust and low noise.

Non-irritating, non-toxic

Additives (sodium bicarbonate) and residues Non-irritating, non-toxic.

Integrated design of crushing and classification

Get the ideal product particle size by adjusting the speed of the grading wheel.

Intelligent control system

One-key operation, online monitoring of key parameters.

Narrow particle size distribution

Particle size D90: 10~45 microns. Good shape and narrow particle size distribution.

Automatically adjust the injection amount of desulfurizer

Adjust the amount of desulfurization agent injected based on the fluctuation of the concentration of harmful substances.

Technical Parameters

Note: The production capacity is closely related to the particle size, specific gravity, hardness, moisture and other indicators of the raw materials. The above parameters are for reference only, please consult our engineers for details.

Product particle size distribution chart

Classic Model