Why does the ammonia desulfurization and desulfurization tower discharge pump go to the first stage

The desulfurization agitator in the desulfurization link of the power plant is mainly to prevent precipitation, mix, and turn the material up. There are two kinds of agitators: the top agitator is placed on the top of the tank to stir limestone solution, gypsum solution, etc., and the side agitator to prevent precipitation is used for wet desulfurization tower, which is used to stir the slurry in the absorption tower to prevent precipitation, in addition, it can also promote liquid mixing to make wet desulfurization more effective.

The principle of ammonia desulfurization process.

Flue gas running path: the flue gas passes through the flue system from the existing electrostatic precipitator and blower; It flows through a 100% axial booster fan and into the scrubber tower. After the flue gas enters the scrubber, it comes into contact with the counter-current spraying slurry containing the ammonia slurry, in which the SO2 is absorbed by the ammonia slurry.

Scrubber Liquid Path: The pH of the slurry in the scrubber is maintained within the range, which optimizes the removal efficiency of SO2 and the oxidation rate of ammonia sulfite. Ammonia sulfate is highly soluble, reaching 40% by weight under normal conditions, while this proportion can be achieved under scrubber operating conditions.

The scrubber is operating in controlled condition at a suspended crystalline particle containing 3-5% by weight. The scrubber transfer pump feeds the slurry into the first stage of the dewatering cyclone.

Application conditions: The boiler dust collector of ammonia desulfurization not only removes harm but also turns harm into benefit, and can also produce by-products that are beneficial to human beings, such as turning acid rain that damages land and crops into fertilizer for farmers to plant.

The ammonia spray method requires booster fans, oxidation fans, pumps, agitators, cyclones, baffle doors, valves, etc., as well as equipment unique to the ammonia method, such as centrifuges, dryers, packaging machines, etc. Then there is the electrical, control system and equipment supporting the equipment.

Ammonia desulfurization needs to be done under alkaline conditions, because ammonia is alkaline, while sulfur dioxide is acidic, and acid-base reacts. If the pH value is lower than 6, it proves that the acidity in the solution is too strong, so it can only be supplemented with ammonia, or the desulfurization tower will be stopped, because the effect of desulfurization can no longer be achieved.

The flow rate of the empty tower of the desulfurization tower is generally between 3-5, and if the SO2 concentration at the desulfurization inlet is not too high, the flow rate can be 4m s

Hello: Ammonia desulfurization is a kind of desulfurization equipment, but the desulfurization we often talk about is generally the desulfurization tower is alkaline desulfurization.

Separate the large and small particles in the slurry, the large particles flow out with the underflow, and the small particles flow out with the overflow. Typical use: gypsum swirl, limestone swirl (in mill systems).

There are two kinds of dust elimination: dry and wet, and wet desulfurization has the effect of desulfurization but is not desulfurization equipment.

Nonsense, it's not that technology doesn't work, it's people who can't.

Chongqing Zhongliangshan Coal and Electric.

Guangxi Water Conservancy and Electric Power Construction Group **** Tiandong Power Plant.

Henan Yaneng Power****.

Shandong Zotye Power Generation****.

Chongqing Fuling Water Conservancy and Electric Power Investment Group, Longqiao Thermal Power, Ningbo Jiufeng Thermal Power.

Daming Group Dongying City Thermal Power.

At present, the newly built power plants basically use ammonia desulfurization, and the difference is whether liquid ammonia or urea is used.