Overview

High-temperature sulfur-containing flue gas passes through the spray mist area from bottom to top, fully contacting the slurry and undergoing an acid-base neutralization reaction. This efficiently removes pollutants such as sulfur dioxide, sulfur trioxide, fine dust, and aerosols from the flue gas. It is the core process structure for achieving flue gas desulfurization and purification, ensuring ultra-low emission standards are met, and directly determines the desulfurization efficiency and treatment effect of the entire desulfurization system.

Features

Employing a multi-layered, uniformly distributed mesh design, the spray coverage area is large, with no dead zones or blind spots. The slurry atomization is fine and uniform, significantly increasing the gas-liquid contact area, allowing for thorough mixing and reaction between flue gas and desulfurization slurry. This results in high desulfurization adsorption efficiency and stable emission compliance.

The spray network uses specialized anti-corrosion materials such as FRP fiberglass, ultra-high-strength anti-corrosion plastics, and stainless steel with rubber lining. It is resistant to acid and alkali corrosion, slurry erosion, and aging, and can withstand the high-corrosion, high-solids-content, and high-speed erosion conditions of desulfurization slurry for extended periods. It is not easily damaged, deformed, or scaled, making it suitable for the harsh, humid, and corrosive environment inside the tower.

Equipped with specialized solid and hollow cone anti-corrosion nozzles, these nozzles have a large flow diameter and excellent anti-clogging performance, preventing blockage by slurry particles, impurities, and sludge. The precise atomization angle and uniform spray force effectively avoid problems such as slurry deviation, uneven spraying, and localized dry walls, ensuring stable reaction conditions within the tower.

The overall structural layout is scientifically sound and rationally designed, with uniform and stable pipe network stress, capable of withstanding slurry impact and airflow disturbance within the tower, ensuring smooth operation without shaking or risk of detachment. The multi-layered spray system is rationally configured, allowing for adjustments to the number of spray layers based on flue gas load, adapting to high and low load switching, offering energy efficiency, high performance, and exceptional adaptability.

The system operates with stable resistance, preventing significant loss of air pressure within the tower and maintaining the dust removal system's airflow. It perfectly matches the collaborative operation of front-end dust removal equipment, balancing desulfurization efficiency with overall system ventilation stability, and boasts an extremely low failure rate during 24-hour continuous operation.

Suitable Scenarios

Widely compatible with the core spray process layers of various limestone-gypsum wet desulfurization towers, spray-type desulfurization and purification towers, and acid-alkali waste gas scrubbing towers. Primarily used in flue gas desulfurization projects for thermal power generation, heating, metallurgical sintering, cement kiln tail gas, chemical tail gas, waste incineration, and biomass combustion, this system is specifically designed for spraying and neutralizing industrial flue gas containing sulfur, dust, and acid mist. It is an indispensable core process structure in wet desulfurization systems.

Maintenance Design

The equipment comes standard with a complete set of main and branch spray pipes, anti-clogging atomizing nozzles, dedicated pipe clamps, anti-corrosion fixing hangers, and sealing connectors. It features a complete, modular design, convenient on-site installation, and wide versatility. It supports single-layer and multi-layer customized layouts, allowing for matching spray density and number of layers based on tower diameter, flue gas treatment volume, and sulfur dioxide concentration. It is adaptable to various desulfurization tower conditions, including normal pressure, high temperature, and high corrosion, and is compatible with new installations, upgrades, and replacements of old spray layers in existing desulfurization towers. Daily maintenance is simple, requiring only periodic flushing of the pipe network, clearing nozzle blockages, and checking pipe tightness and corrosion. Long-term maintenance costs are extremely low.

Note

The spray layer is designed for uniform atomization, full gas-liquid reaction, and efficient desulfurization. It is the core purification process layer of the wet desulfurization system. Clogged nozzles, damaged pipelines, and uneven spraying will directly lead to a decrease in desulfurization efficiency, exceeding of outlet standards, and scale buildup on the tower walls. Regular cleaning, maintenance, and replacement of aging parts are required to ensure the efficient, stable, and compliant operation of the desulfurization system.