In response to the country's updated environmental protection emission standards, many current deep desulfurization projects rely on basic methods like spray layer addition or twin-tower cascading. However, achieving a 50mg/m³ sulfur dioxide limit for a 300MW unit can cost over 30 million yuan. The increased circulation pump head after renovation leads to a sharp rise in system pressure drop and power consumption of the draft and booster fans, resulting in high energy costs. Additionally, using magnesium-based additives brings about high daily operational expenses that power plants struggle to bear. Traditional layered desulfurization technologies are not only costly but also time-consuming and inefficient, no longer meeting today’s market demands.
Developed by Professor Liu Dingping’s research team from South China University of Technology, the third-generation highly-efficient desulfurization technology has overcome key technical challenges in the deep desulfurization industry. This innovative solution eliminates the need for extra layers and expensive additives. With a simple engineering upgrade, it meets the latest and most stringent national emission standards while offering lower investment, reduced operating costs, and a shorter construction period. It enables efficient flue gas desulfurization and supports technological upgrades.
**Technical Principle:**
This high-efficiency desulfurization technology uses an atomization swirling method to convert existing spray towers into more effective systems. By applying ultrasonic atomization, the desulfurizer particle size is reduced from 1500–3000μm to 50–80μm, significantly increasing its specific surface area and accelerating the desulfurization reaction. With patented atomization swirling and tangential arrangement, a swirling spray field is created within the tower, ensuring full mixing and mass transfer between flue gas and desulfurizer. This enhances the probability of SO₂ reacting with the desulfurizer, enabling high-turbulence mass transfer under low liquid-to-gas ratios and improving desulfurization efficiency. The circulation reaction rate of the desulfurizer drops from 77 to 3 times, reducing both the liquid-to-gas ratio and the power consumption of the circulation pump, thus solving the contradiction between economic efficiency and emissions control.
**Five Major Technological Innovations:**
- Ultrasonic atomization is introduced into wet flue gas desulfurization, reducing desulfurizer particle size and enabling technology replacement.
- Computer simulation allows tailored design of the desulfurization tower, rebuilding the cloud-like reaction field for high-efficiency desulfurization.
- Unique anti-wear, anti-clogging, and self-purification technologies ensure stable and long-term operation of the desulfurization tower.
- A proprietary sound-absorbing design improves system performance and reduces noise.
- On-line maintenance technology allows core components of the atomizer to be replaced without shutting down the system.
**Eight Key Advantages:**
- Low liquid-to-gas ratio: Cloud atomization of the desulfurizer reduces the number of cycles and lowers the liquid-to-gas ratio.
- Small particle size: Desulfurizer particles (50–80μm) allow sufficient reaction time and faster reaction rates.
- High efficiency: Complete absorption and high desulfurization efficiency.
- Low investment: Simple system design requires no additional towers or layers, making it cost-effective.
- Low circulation pump energy consumption: Power usage is only half of traditional methods.
- Low ventilation power consumption: System pressure drop is reduced by one-third, saving energy for fans.
- Short construction period: Standard renovation can be completed in just 10 days.
- Wide fuel adaptability: Reduces SO₂ emissions to below 50mg/m³, allowing power plants to use high-sulfur coal without violating environmental regulations.
Analytical Balance
An analytical balance is a highly precise laboratory instrument used to measure the mass or weight of samples with high accuracy and precision. It is commonly used in analytical chemistry, pharmaceuticals, and other scientific fields where precise measurements are required. Analytical balances typically have a readability of 0.1 milligrams (0.0001 grams) or less and are designed to minimize external factors that may affect the measurement, such as air currents and temperature fluctuations. They often use a draft shield to protect the sample from external influences and have a built-in calibration system to ensure accurate readings. Analytical balances can be operated manually or electronically, and some models are equipped with advanced features such as automatic calibration, data storage, and connectivity to a computer or other devices.
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