Boiler desulfurization and dust collector

Detailed content introduction of boiler desulfurization and dust collector

Boiler desulfurization and dust collector is a commonly used supporting equipment in boilers and industrial production. Its purpose is to clean the particulate smoke and dust in boiler fuel and combustion exhaust gas, thereby significantly reducing the amount of smoke and dust emitted into the atmosphere. It is an important equipment for improving environmental pollution and air quality. Boiler desulfurization and dust collector is suitable for flue gas dust removal, smoke removal and desulfurization of coal-fired, oil fired boilers and kilns. It has the characteristics of low resistance, flexible installation and layout, good desulfurization efficiency, and long service life.

In boiler combustion, due to the excessive supply of air, in addition to smoke and dust, there are also SO2, SO3, NO and NO2, as well as nitrogen and hydrogen compounds in the flue gas. Excessive concentrations of SO2 and SO3 can trigger respiratory diseases in the human body, corrode industrial equipment and buildings, and in severe cases, cause acid rain, damage vegetation, forests, crops, and ecological balance. The harm of NO to the human body is the same as that of coal gas CO. After being inhaled, it can cause paralysis and spasms due to lack of oxygen. NO2 itself is more toxic than NO and SO2, not only harmful to the human lungs, but also to various organs and hematopoietic tissues. Therefore, it is urgent to carry out desulfurization and denitrification of the flue gas emitted after combustion

Working principle of boiler desulfurization and dust collector

The flue gas enters the Venturi through the inlet duct and is uniformly sprayed with water at the entrance of the throat. Due to the high-speed movement of the flue gas, the sprayed water is melted into small water mist to wet the ash material in the flue gas. In this way, the ash material collides and condenses with the water droplets, especially the ash dust material with small diameter can be dissolved by the water mist. Adequate preparation is made for the separation of ash materials, including dust removal and desulfurization. After that, the flue gas enters the cylinder at a suitable speed to reduce the temperature and continues to impact the lime water in the pool. The dust and SO2 in the flue gas react with the lime water in the pool to form sulfates, which sink to the bottom of the water under the action of inertia, gravity, adhesion, and cohesion to complete the second desulfurization process. The water droplets, water mist, and washed flue gas stirred up by the flue gas are lifted apart by the fan's gravity, allowing the flue gas and lime water to fully react. Then, the water is separated by the impeller dehydrator, and the water flows into the pool through the drainage pipe, completing the third dust removal and desulfurization of the flue gas. The purified gas is discharged into the atmosphere through the fan.

Characteristics of boiler desulfurization and dust collector

The boiler desulfurization and dust collector produced by our company adopts the principles of inertia, condensation, centrifugal force, etc. The dust collector also has an adjustable air cap, which can be adjusted at the top of the equipment to adapt to various sizes of air flow, thus controlling the flue gas flow rate. It has been confirmed to operate normally, and no matter how large the induced draft fan is, it will not carry water and corrode its supporting equipment. Not only does it reduce losses, but it also reduces maintenance and repair costs. And it has a small footprint. The characteristics of convenient transportation and installation. This product uses domestic composite materials and fiberglass resin, which increases its degree of use and greatly extends its service life. This dust collector is easy to operate and maintain, with low operating costs and good desulfurization effect. It is an economical and practical boiler desulfurization and dust collector.