Wet desulfurization defoamer is a type of defoamer specifically used in the wet desulfurization process. Wet desulfurization is one of the most widely used flue gas desulfurization technologies, which reacts with sulfur dioxide in flue gas by spraying alkaline solution to generate sulfate or sulfite, so as to achieve the purpose of removing sulfur dioxide from flue gas. However, in the wet desulfurization process, the use of defoamers is required to solve these problems due to the bubbles generated during the reaction that can lead to reduced desulfurization efficiency and increased equipment wear.
The main function of wet desulfurization defoamer is to quickly eliminate the foam generated in the desulfurization process and prevent the influence of foam on the desulfurization efficiency and equipment. At the same time, it reduces the level tension and prevents foam from re-forming. The choice of defoamer is critical to the stability and efficiency of the wet desulfurization process.
When choosing a wet desulfurization defoamer, the following factors need to be considered:
First of all, the defoamer should have a good defoaming effect. It should be able to quickly eliminate foam generated during the desulphurization process and the defoaming effect should be long-lasting and stable. At the same time, the defoamer should have good dispersibility and be evenly distributed in the desulfurization solution to give full play to its defoaming effect.
Secondly, the defoamer should have good chemical stability. In the wet desulfurization process, the desulfurization solution is usually exposed to harsh environments such as high temperature, high humidity, strong acid and alkali, so the defoamer needs to be able to withstand the influence of these conditions, maintain its chemical stability, and will not react with the desulfurization solution and cause failure.
Third, defoamers should be environmentally friendly. It should be free of toxic and harmful substances and will not cause pollution to the environment. At the same time, the amount of defoamer should be controlled within a reasonable range to avoid unnecessary impact on the environment.
Finally, the defoamer should be economical. It's supposed to be reasonable and not incur excessive costs during use. At the same time, the amount of defoamer should be controlled within a reasonable range to avoid waste.
When selecting a wet desulfurization defoamer, it is necessary to consider the specific desulfurization process and equipment, as well as the performance characteristics of the defoamer. At the same time, it is also necessary to pay attention to the use of defoamers and precautions to ensure that defoamers can give full play to their role and improve desulfurization efficiency and equipment stability.
In addition to choosing the right defoamer, there are a few things to keep in mind to ensure a smooth wet desulfurization process:
First of all, the pH of the desulfurization solution needs to be controlled. The pH value of the desulfurization solution has an important impact on the effectiveness of the defoamer and the desulfurization efficiency. A pH that is too high or too low can cause the defoamer to fail or reduce the efficiency of the desulfurization. Therefore, the pH of the desulfurization solution needs to be checked regularly and adjusted as needed.
Secondly, the amount of impurities in the desulfurization solution needs to be controlled. Impurities in the desulfurization solution may react with the defoamer, causing the defoamer to fail. Therefore, it is necessary to keep the desulfurization solution clean and regularly clean the equipment of impurities and sediments.
In addition, it is also necessary to pay attention to the recycling of the desulfurization solution. In the wet desulfurization process, the desulfurization solution usually needs to be recycled. However, recycling may lead to the accumulation of impurities and salts in the desulfurization solution, which can affect the effectiveness of the defoamer and the desulfurization efficiency. Therefore, it is necessary to drain part of the desulfurization solution regularly to keep it clean and stable.
Finally, the maintenance and upkeep of the equipment needs to be strengthened. The proper functioning of the equipment is critical to the stability and efficiency of the wet desulfurization process. Therefore, it is necessary to regularly inspect and maintain the equipment to find and solve problems in time to ensure the normal operation of the equipment and the effect of the defoamer.
In short, wet desulfurization defoamer is an indispensable and important additive in the wet desulfurization process. Choosing the right defoamer and paying attention to the above points can ensure the smooth progress of the wet desulfurization process, improve the desulfurization efficiency and equipment stability, and thus contribute to environmental protection and economic development.