Sichuan Zhongjin Environmental Protection uses a baking soda desulfurization grinder.

Sichuan Zhongjin Powder Equipment Co., Ltd. independently **developed and produced a dedicated crushing and classifying machine for flue gas desulfurization (Patent No. ZL 201820900377.6)**. This machine crushes sodium bicarbonate to approximately d90 < 15μm, which is then uniformly and dispersedly injected into the desulfurization tower device. There, it interacts with the airflow to form turbulent collisions and friction, further facilitating the desulfurization reaction.

Process flow:

Raw material warehouseInsideSodium bicarbonate (NaHCO₃) ThroughFeederUniformDeliver the materials.into the grinder(Feed rate is provided by the main system or the flue gas analyzer of the existing chimney at your company's site)4-20mASimulated signal interlocking, online automatic control of feed quantity., grindingmachineUsing a rapidly rotating rotor with hammers and toothed plates, the material is impacted and crushed through the impact force of the equipment.Violent collisions, friction, and shearing occur between the rotating body and the material, achieving ultra-fine grinding of particles. The crushed material is transported by the upward airflow to the impeller classification zone, where, under the action of the centrifugal force of the classification wheel and the fan, separation of coarse and fine powders is achieved. The coarse powder, based on its own gravity,The pressure generated by the classification wheel isReturn to the crushing chamber to continue crushing.Conforms to finenessof the materialSprayed by the conveying fanEntering the flue gas pipeline, it reacts with the acidic components in the pipeline, thereby achieving desulfurization and deacidification.作用Purify the flue gas.

Characteristics:

（1) This machine is a vertical shaft impact crusher, equipped with a classification device inside the crushing chamber. The crushed material is subjected to the action of airflow.

Separated by a classification device, which replaces the usual crusher screen, it can simultaneously complete the two processes of fine powder crushing and fine powder classification.

Preface, high crushing efficiency.

（2) Equipped with an airflow regulating valve and a stepless speed controller for the classifying impeller, allowing particle size adjustment without stopping the machine and without causing pollution.

Environment.

（3) Unique flow field design and constant gas-solidCompareConcentration control ensures a short residence time of the material within the chamber, preventing the material from

Adhered to the inner wall of the cavity.

（4）The crushing hammer head and tooth plate are made with special processes and materials, ensuring a long service life.