The SDS sodium bicarbonate grinding mill delivers efficient dry-process flue gas desulfurization (FGD) using sodium bicarbonate. By ultrafine grinding, it achieves high SO₂ removal without wastewater. Integrated grinding, classification, and conveying functions provide high efficiency and low OPEX, serving power, steel, cement, chemical, and waste incineration industries for ultra-low emissions.
Utilizes multi-stage dynamic grinding to reduce sodium bicarbonate to D97≤20μm ultrafine particles, significantly increasing specific surface area and desulfurization reactivity. High-precision classifier ensures uniform particle size distribution, preventing over-grinding or insufficient fineness to optimize desulfurizer utilization.
Dry process requires no water injection for cooling, suitable for medium-low temperature flue gas (140-250°C). Achieves over 95% desulfurization efficiency, particularly ideal for retrofitting old equipment. Sodium bicarbonate reacts with SO₂ to form solid byproducts (e.g., Na₂SO₄), eliminating wastewater discharge and secondary pollution.
Employs low-consumption motors and variable frequency control, reducing integrated energy consumption by over 30% versus traditional equipment. Modular design supports on-demand start/stop operation, flexibly adapting to varying conditions to further reduce operating costs.
Integrated PLC automates real-time monitoring of grinding fineness, feed rate, and system pressure. Enables one-touch operation and remote monitoring. Fault early-warning function identifies abnormalities to reduce unplanned downtime risks.
01
Shears and impacts sodium bicarbonate via high-speed rotating grinding discs and stator gaps.
02
Uses airflow classification to send qualified fine powder to the desulfurization reactor while returning coarse particles for regrinding.
03
Ensures stable desulfurizer supply via sealed screw or pneumatic conveying, preventing dust leakage.
04
Ground sodium bicarbonate is injected into the flue duct via conveying device. Rapid gas-solid reaction with SO₂ generates solid byproducts collected by dust removers for flue gas purification.
