There are various methods for flue gas desulfurization, and wet flue gas desulfurization is the most efficient and efficient method for utilizing desulfurizers. Due to its many advantages, wet flue gas desulfurization plays an important role in the world's desulfurization processes. According to statistics; Wet desulfurization accounts for over 90% of the operating desulfurization equipment worldwide. For wet desulfurization, depending on the type of desulfurizer used, there are mainly lime (limestone) method, sodium alkali method, magnesium oxide method, ammonia method, double alkali method, etc.
Technical description of wet electrostatic precipitator

working principle
The wet electrostatic precipitator equipment is composed of a cathode wire and an anode tube (precipitation electrode). Its working principle is that the flue gas passes through a high-voltage electric field, which charges the smoke and fog droplets in the flue gas, forming charged ions. The charged ions move towards the electrode with opposite charges, discharge after reaching the electrode, and form neutral dust and fog particles, which deposit on the electrode, aggregate and fall, and are removed. In order to improve the dust removal and defogging efficiency of wet electrostatic precipitator equipment, a certain strength of electric field must be formed, which requires that the anode tube of the wet electrostatic precipitator equipment must have a voltage and current greater than the corona inception voltage, and the cathode line must have a certain line current intensity. The particle size and conductivity of dust and mist are also important factors determining the efficiency of dust removal and mist collection. The main particle size range of wet electrostatic precipitator equipment for dust removal and mist collection is between 0.01-100um, and the specific resistance range of smoke and dust is 3 × 106-4 × 1010 ohms/cm. In order to ensure the dust removal and mist removal efficiency of wet electrostatic precipitator equipment, it is necessary to regularly clean the anode precipitation electrode of the electrostatic precipitator with water.

Technical features
Honeycomb WESP has small volume, low investment, easy layout, low resistance, and low energy consumption; Efficient capture of PM2.5, mercury, and various pollutants; Gas suspended particles and mist can be removed within the range of 0.01-100um, and are widely applicable to smoke and dust; Effectively remove SO3 and water mist from desulfurized flue gas, delaying the corrosion of chimneys by wet flue gas. High dust and mist removal efficiency, with the highest dust and mist removal efficiency reaching over 95%;
Equipment Structure Description

Overall requirements for equipment
The wet electrostatic precipitator (WESP) is arranged on the ground. The dust collecting electrode (anode) of the wet electrostatic precipitator is honeycomb shaped and made of conductive fiberglass. The outer shell is made of carbon steel lined with FRP. The wet electrostatic precipitator body includes: shell, anode system, cathode system, top cleaning device, and inlet current equalization device. The equipment operates normally and meets the emission requirements of<5mg/Nm3. The shell material of the wet electrostatic precipitator is carbon steel with a wall thickness of 4mm. The selection of FRP resin anti-corrosion materials for the inner wall and internal structural components of the body fully considers anti-corrosion requirements, including frames, positioning beams, etc. The anode material is made of conductive fiberglass; The corona electrode adopts 2205 rigid barbed wire; The top air equalization device is made of porous plate (PP material).