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04
2023
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05
Dry desulfurization and denitrification equipment manufacturers: Working principle of desulfurization and denitrification equipment
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Dry desulfurization and denitrification equipment manufacturers Desulfurization and denitrification is an acid-base neutralization process. Desulfurization removes SO2 (sulfur dioxide) from flue gas, while denitrification mainly removes NOx (nitrogen oxides). These substances, upon entering the atmosphere, form acid rain, which is very harmful to human health. Therefore, the government has been promoting environmental protection. Coal-fired flue gas contains these substances, especially in thermal power plants. Desulfurization must be constructed simultaneously with thermal power plants. The government has not yet begun to mandate denitrification.
The working principle of desulfurization and denitrification equipment is to reduce the generated NOx to N2, thereby removing NOx from the flue gas. According to the treatment process, it can be divided into wet denitrification and dry denitrification, mainly including: acid absorption method, alkali absorption method, selective catalytic reduction method, non-selective catalytic reduction method, adsorption method, plasma activation method, etc.; some people also use microorganisms to treat nitrogen oxide waste gas.
Dry desulfurization and denitrification equipment manufacturers introduce that the desulfurization process is to prepare an alkaline desulfurizing agent (such as limestone, CaO, sodium hydroxide, etc.) into a slurry, which is mixed with boiler flue gas, sulfur dioxide, and water to generate acid, and then reacts with the alkaline desulfurizing agent to generate CaSO4 (calcium sulfate). The principle of denitrification is similar to that of desulfurization, using ammonia water or urea instead of a denitrifying agent.
Introduction to flue gas desulfurization and denitrification equipment:
1. Using spray water film technology to increase spray power and save circulating water.
2. Flue gas desulfurization and denitrification equipment is characterized by corrosion resistance, aging resistance, light weight, high strength, long service life, and low cost.
3. The flue gas desulfurization and denitrification dispersion chamber has a large liquid-gas contact area, resulting in high dust removal and desulfurization efficiency.
4. Unique impeller dewatering machine saves energy and reduces consumption. It uses the principle of centrifugal force for dewatering. The impeller dewatering equipment does not require power energy, and there are no moving parts inside the equipment, improving operability and stability, reducing wear and tear, and maintenance costs.
5. The flue gas desulfurization and denitrification structure adopts a split combination type, which is convenient for transportation and installation, saving manpower and daily maintenance.
6. Flue gas desulfurization and denitrification equipment integrates dust removal and desulfurization, and consumes less water. Sodium hydroxide, industrial alkaline wastewater or slag water, and grate ash wastewater can all be used as desulfurizing agents, saving energy and preventing secondary pollution.
Dry desulfurization and denitrification equipment manufacturers indicate that desulfurization and denitrification, simply put, is the process of using an alkali to neutralize an acid. Desulfurization is achieved through methods to remove sulfur dioxide contained in boiler flue gas, and denitrification removes nitrogen oxides contained in boiler flue gas. Desulfurization involves an alkaline desulfurizing agent (such as limestone, calcium oxide, sodium hydroxide, etc.) which is made into a slurry and mixed with boiler flue gas. Sulfur dioxide reacts with water to become an acid, which then reacts with the alkaline desulfurizing agent to produce calcium sulfate (CaSO4) and other desulfurization end products. The principle of denitrification is similar to that of desulfurization, using ammonia or urea instead of a denitrifying agent.
The company mainly produces various dust removal, desulfurization, denitrification, VOCs waste gas purification, wastewater treatment, noise reduction, complete sets of industrial electrical control systems and equipment, and researches and develops waste gas, wastewater, waste residue, and noise treatment equipment.
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