The integrated desulfurization and denitrification purification treatment device has a simple process, easy management, operation, and maintenance, which will not have any impact on the production of the workshop. It has a wide range of applications and can purify multiple pollutants at the same time. The pressure drop is low, the operation flexibility is large, and it has good defogging performance. The tower body can be made of PP/PVC/FRP materials according to the actual situation, and the packing material adopts efficient and low resistance Bao'er ring, which can remove odors, harmful substances, etc. in the gas.
Integrated desulfurization and denitrification purification treatment deviceThe use of a packed tower for purifying exhaust gas is suitable for the treatment of connected and intermittent emissions of exhaust gas. The process is simple, the management operation and maintenance are very convenient and simple, and it will not have any impact on the production of the workshop. It has a wide range of applications and can purify multiple pollutants at the same time. The pressure drop is low, the operation elasticity is large, and it has good dehazing performance. The tower body can be made of PP/PVC/FRP and other materials according to the actual situation. The packing uses efficient and low resistance Bao'er rings, which can remove odors, harmful substances, etc. in the gas.
Integrated desulfurization and denitrification purification treatment deviceProcess Characteristics
① Semi dry desulfurization is set before denitrification to remove the SO2 content in the flue gas to below 30mg/Nm3 to ensure subsequent denitrification.
② Integrated flue gas desulfurization, dust removal, denitrification, and catalyst thermal decomposition regeneration, saving investment, low operating costs, and occupying less space.
③ Dust should be removed before denitrification to reduce the wear and tear of the catalyst caused by dust and extend the service life of the catalyst.
④ By using the pressure equalization effect of the dust removal filter bag filtering layer and the mixed flow equalization structure, the velocity field and temperature field distribution of the flue gas can be made more uniform, which can improve the denitrification efficiency.
⑤ Ammonia gas is sprayed into the device through a grid like distribution of ammonia injection ports, and high-temperature pyrolysis gas is sent into the flue gas through an orifice plate air outlet, making the contact between ammonia gas and flue gas, and the mixing between high-temperature pyrolysis gas and flue gas more complete and uniform.
⑥ Under the condition of not affecting normal operation, high-temperature flue gas decomposition catalyst surface viscous substances can be utilized online to improve denitrification catalytic efficiency and catalyst service life.
⑦ Omit the catalyst cleaning system in traditional processes.
⑧ During the filtration process, the flue gas passes through the filter bag and comes into full contact with the unreacted desulfurizer filtered under the outer surface of the filter bag, further improving the desulfurization efficiency of the flue gas.
⑨ The semi dry desulfurization process has a small temperature drop (<30 ℃), and the integrated dust removal and denitrification process shortens the process, reducing the overall temperature drop. The temperature of the returned flue gas is greater than 150 ℃, meeting the requirements for chimney hot standby.
⑩ The flue gas operates under dry conditions above the dew point temperature of the flue gas, without the risk of condensation corrosion, and does not require special internal anti-corrosion treatment.