Limestone gypsum flue gas desulfurization wet process (FGD) is a mature and widely used desulfurization process in the world, its desulfurization medium is limestone powder. Therefore, the preparation of limestone powder has become a prerequisite for desulfurization in thermal power plants and steel plants to improve desulfurization efficiency.
Limestone gypsum flue gas desulfurization process requires the particle size of limestone powder to be 250 mesh or 325 mesh (45μm),the desulfurization effect of 325 mesh limestone powder is better. To prepare such fine limestone powder, basically, the mills mainly adopt European plate mill, vertical mill, ball mill and pendulum mill. In recent years, with the improvement of the requirements for the fineness of limestone powder and the needs of energy conservation and emission reduction, ball mills and pendulum mills have been gradually eliminated. More and more power plants have begun to adopt European version mills and vertical mills for the preparation of limestone powder by flue gas desulfurization.
European version mill is a new generation of upgraded products of Raymond mill. Compared with traditional pendulum type Raymond mill, European version mill has applied a number of new technologies such as integral transmission of bevel gears and increased linkage of grinding rollers, the output has been greatly improved. The output of 250 mesh or 325 mesh desulfurized limestone powder can reach 5-55 tons per hour, which is more suitable for the centralized and large-scale development of the powder industry.
The vertical mill is also one of the common machines for preparing desulfurized limestone powder. Compared with the European version mill, its output is larger, with an hourly output of about 80 tons, customers can choose according to their actual production needs.
Compared with ball mills, as the current mainstream equipment for desulfurization limestone grinding, European mills and vertical mills not only have large output, but also have much lower unit energy consumption than ball mills, and the fineness of finished products is more uniform, which can better meet the requirements of desulfurization engineering demand for powder, improve desulfurization efficiency.
As for the cost of the complete set of desulfurized lime pulverizing equipment, it should be determined according to the specific equipment model. Compared with the European version mill, the vertical mill has higher production capacity and larger investment. You can submit the production factors such as output, feed size and finished product fineness to the online customer service, and we will arrange technicians to make the model selection scheme and quotation budget.
