Limestone is crushed, grinded and slurried and then transported to the absorption tower. The slurry in the absorber is sent to the spraying device by circulating pump for spraying.
After the flue gas is extracted from the flue, it is pressurized by a booster fan and cooled by a GGH flue gas heater and then entered into an absorption tower. The flue gas contacts with the sprayed limestone slurry in the absorption tower, removes SO2 from the flue gas, and the clean flue gas is discharged from the absorption tower and heated by the flue gas heater and discharged into the flue.
CaSO3 formed after SO2 absorption in the absorption tower is oxidized to form CaSO4. CaSO4 discharged from the absorption tower is separated by cyclone (concentrated) and recycled after vacuum dehydration.
In order to ensure the comprehensive utilization of desulfurization gypsum and reduce wastewater discharge, the content of CaCO3 in limestone used for desulfurization should be higher than 90%. The fineness of limestone powder should guarantee 90% screening rate of 250mesh for boilers burning medium and low sulphur fuel coal, and 90% screening rate of 325mesh for boilers burning medium and high sulphur content coal. Quicklime can also be used as absorbent. The purity of quicklime should be higher than 85%.
Dingbo is dedicated to being there for you for the life of your machine.
Projects Consulting
Projects Consulting
Dingbo process engineers are experts at suggesting the best equipment for existing operations and evaluating the solution most likely to improve the efficiency or capacity of your system. Based on our many years' experience on market development and project management, we provide specialized reconstruction services of production line for customers. Replacing old equipment with high-quality equipment greatly increases the output of production lines so that the customers can obtain huge return from relatively limited investment.
Solution Deisgn
Solution Deisgn
Dingbo's Product Development Team has a vast knowledge and a wealth of expertise developing solutions that will benefit our customers in the best possible way. The team is constantly researching new and inventive solutions to ensure our equipment meets your needs. They look at ways to create safer handling and maintenance practices, simpler operating procedures and machines for increasing efficiency. Each piece of Dingbo equipment is designed to give you peace of mind by requiring minimal maintenance while giving your operation maximum profitability. We want to be sure our products do exactly what we say they will when they get to your operation.
Spare Parts Supply
Spare Parts Supply
Dingbo understands that when your equipment goes down, it doesn’t just cost you time, it costs you money. That’s why, when you choose Dingbo, you get more than great equipment, you get the industry’s best parts support. Dingbo has a good many warehouses of spare parts. High-quality spare parts ensure safe and stable operation of equipment. Rapid transport by air removes worry about production interruption loss.
Reconstruction Project
Reconstruction Project
Dingbo process engineers are experts at suggesting the best equipment for existing operations and evaluating the solution most likely to improve the efficiency or capacity of your system. Based on our many years' experience on market development and project management, we provide specialized reconstruction services of production line for customers. Replacing old equipment with high-quality equipment greatly increases the output of production lines so that the customers can obtain huge return from relatively limited investment.
Installation Services
Installation Services
We provide complete installation services for customers regarding site leveling, foundation drawing inspection, construction progress, team planning, installation instruction and commissioning to ensure smooth operation of production lines. In addition, we provide appropriate trainings for customers to achieve their satisfaction. Thanks to many years' experience on on-site management, production line is not difficult for Dingbo.
Operation Training
Operation Training
Our Team are specialists in their field and have decades of application experience. Our customers all over the world also benefit from this expertise, because we are happy to pass our knowledge on to them in our Dingbo training sessions. With our wide range of training programs on applications, operation, and technology, we train you and your employees to use your Dingbo machines effectively and profitably.
