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Hebei Weimei Environmental Protection is responsible for the supply and installation of the main body of this wet electrostatic precipitator, including the anode system, cathode system, upper and lower air chambers, gas distribution plate, anti-sway frame, high and low voltage electrical equipment, and distribution cabinets. The flue gas treatment capacity of this equipment is ≤ 220,000 m³/h, the flue gas temperature is ＜ 70℃, and the gas inlet mode is the bottom-in and top-out type.

The wet electrostatic precipitator for cyanuric acid flue gas treatment is dispatched by road.

220,000 m³/h Wet Electrostatic Precipitator (WESP) Commissioned and in Operation

Two wet electrostatic precipitators (WESP) with a gas handling capacity of 22,000 m³/h for acid-making tail gas have entered the commissioning phase. The net flow area of tail gas in the anode tubes of this wet electrostatic precipitator and demister is ≥ 10 m². The main body is made of conductive FRP (fiber-reinforced plastic), equipped with an automatic control system. Both the cathode wires and cathode suspension rods are made of Hastelloy C276.

Commissioning Site of 22,000 m³/h Wet Electrostatic Precipitators (WESPs)

A Set of Installation Photos of 50,000 Nm³/h Wet Electrostatic Precipitator for Yellow Phosphorus Tail Gas and 20,000 Nm³/h Wet Electrostatic Precipitator for Desulfurization Tail Gas.

Hoisting of Anode System of 50,000 Nm³/h Wet Electrostatic Precipitator for Yellow Phosphorus Tail Gas

Hoisting of Anode System of 50,000 Nm³/h Wet Electrostatic Precipitator for Yellow Phosphorus Tail Gas

Hoisting of Frame of 20,000 Nm³/h Wet Electrostatic Precipitator for Desulfurization Tail Gas

The semi-dry process mixing tower, part of the Guizhou 75T stainless steel boiler tail gas treatment system, is currently under fabrication. This tower features a flue gas handling capacity of 30,000–140,000 m³/h, with calcium oxide (CaO) powder as the treating agent. The flue gas residence time is more than 1 second, and the flue gas temperature ranges from 180°C to 200°C. The tower is constructed from 316L stainless steel.

Fabrication of Guizhou 75T Stainless Steel Drying Tower

This wet electrostatic precipitator is designed to remove acid mist from the tail gas discharged after the washing process of the phosphine tail gas incinerator. The main components of the flue gas include water vapor, phosphorus pentoxide (P?O?) and phosphine (PH?), with a gas treatment capacity of 40,000 m³/h.

The equipment supplied by Hebei Weimei includes all the necessary facilities required for the normal operation of the complete set, such as the wet electrostatic precipitator shell (upper gas chamber, lower gas chamber, ash collecting chamber), inlet and outlet matching flanges, anode tubes, cathode wires, counterweights, internal spray system, access doors, explosion-proof openings, etc.

The anode tubes of the wet electrostatic precipitator have passed inspection and are ready for delivery

Material Inspection of the Wet Electrostatic Precipitator

Shell of the Wet Electrostatic Precipitator

The customer’s products include trichloroisocyanuric acid, sodium dichloroisocyanurate, cyanuric acid, etc., which are used in water treatment and disinfection applications, and are mainly exported to European countries. Installed at the end of the production line, the two wet electrostatic precipitators have already entered the commissioning and operation phase.

Operation of Two Wet Electrostatic Precipitators for Cyanuric Acid Tail Gas Treatment

The 2205 stainless steel anode tubes of the wet electrostatic precipitator for sodium hypophosphite flue gas treatment have passed inspection and are ready for delivery. The following is the inspection process.

Fabrication of 2205 Stainless Steel Anode Tubes for Wet Electrostatic Precipitator Completed

Material Inspection of Anode Tubes for Wet Electrostatic Precipitator (Sodium Hypophosphite Flue Gas Treatment)

Thickness Inspection of Anode Tubes for Wet Electrostatic Precipitator (Sodium Hypophosphite Flue Gas Treatment)

Operation Case of Calcium Chloride Tail Gas in Hubei

The two sets of wet electrostatic demisters are applicable to the wet electrostatic precipitator for calcium chloride drying flue gas. Hebei Weimei Environmental Protection is responsible for the functional design, manufacturing, installation, commissioning and operation of the main body of the high-voltage electrostatic demister and its auxiliary equipment system.

This wet electrostatic demister has a flue gas treatment capacity of 180,000 m³/h, with the inlet flue gas dust content (particulate matter) ≤ 200 mg/m³ and flue gas temperature ≤ 50℃. The air inlet and outlet of the demister are arranged in a bottom-in and top-out mode, and the designed flow rate of the demister is 1.1 m/s. The required dust emission concentration of the final product ≤ 20 mg/m³ has been achieved up to standard at present.

Wet Electrostatic Precipitator for Calcium Chloride Drying Flue Gas Treatment in Yichang, Hubei: Air Inlet and Outlet Arranged in Bottom-in and Top-out Mode

Operation Performance of Calcium Chloride Tail Gas Treatment in Shandong

The first wet electrostatic precipitator for upgrading and reconstruction of calcium chloride production line in Shandong Project

The customer is engaged in the chemical production of sodium metabisulfite, sodium bicarbonate, calcium chloride and magnesium chloride. Among them, the calcium chloride production line is in urgent need of environmental protection upgrading and reconstruction. The flue gas flow rate of the demister in this production line is 40,000 m³/h, the inlet flue gas temperature is below 60℃, and the airflow direction is bottom-in and top-out.

The one close by is the second unit, and the one in the distance is the third unit of wet electrostatic precipitator for flue gas deep purification, showing the treatment effect of calcium chloride tail gas.

Treatment Effect of the Fourth Wet Electrostatic Precipitator for Calcium Chloride Tail Gas Treatment

Two sets of wet electrostatic precipitators, designed for treating the mixed flue gas of dichloroisocyanuric acid and trichloroisocyanuric acid with a gas handling capacity of 20,000 m³/h, have been fully assembled and are awaiting for delivery.

Anode Tubes and Shells of Wet Electrostatic Precipitator for Cyanuric Acid Flue Gas

Wet Electrostatic Precipitator for Cyanuric Acid Flue Gas Ready for delivery

The wet electrostatic precipitator for flue gas treatment in a brick factory has been in operation for five years, with a decrease in dust removal efficiency. Inspection revealed that the causes were related to the discharge voltage of the electrode wires, electric field strength, and spraying of the wet electrostatic demister. Therefore, the titanium electrode wires, anti-sway frames, and nozzles were replaced.

On-site Replacement of Titanium Electrode Wires and Anti-sway Frames of Wet Electrostatic Demister for Flue Gas Treatment in a Brick Factory; Dust and Dirt Inside Are Clearly Visible

 The flue gas treated by the wet electrostatic precipitator in the phosphating chemical industry is desulfurized flue gas mixed with water vapor. The flue gas contains highly corrosive media such as sulfur, phosphorus, arsenic, and fluorine, and the operating temperature is below 90 degrees Celsius.

The Removed Girders and Insulation Boxes of the Wet Electrostatic Precipitator with Severe Corrosion

The Removed Anode System and Air Chamber of the Wet Electrostatic Precipitator with Corrosion of Varying Degrees

 Hebei Weimei's overhaul project of the wet electrostatic precipitator in a Yunnan sugar factory has been completed. Meeting environmental protection standards is an important part of the production line, and it is expected to play its due role in the upcoming sugar crushing season.

Overhaul Project of Wet Electrostatic Precipitator in a Sugar Factory