What are the conditions that affect the use effect of desulfurization and denitrification equipment?

When using desulfurization and denitrification equipment, we need certain conditions, so that its overall effect will be better. In addition to the structure of the equipment itself, we also need to consider the analysis of some data when using. Next, we will analyze what conditions the desulfurization and denitrification equipment needs when using. We look forward to your attention.

1. The mixing degree of the reverberant and the smoke: The mixing degree of the restoring agent and the smoke determines the reverberation process and speed. In the differentiation furnace, the restoring agent and flue gas react when mixed. The power of denitrification is directly determined by mixing. Mixing problem is one of the main reasons for low power of SNCR denitrification.

2. Resilient retention time: Since any reaction requires time, it is necessary to ensure that the restorative has enough retention time in the flue gas at appropriate temperature scale to generate recovery reaction. Under the same conditions, the longer the residence time of the restoring agent of the desulfurization and denitrification equipment is, the better the denitrification effect is. At this moment, it is required to completely complete the steps of mixing NH3 or urea with flue gas, transpiration of water, differentiation of restoring agent, and restoration of nitrogen oxides. Generally, the time required is 0.5s. The residence time of ammonia in the differentiation furnace depends on the size of the differentiation furnace, the speed of flue gas passing through the differentiation furnace, the atomization condition of solution, and the mixing mode of fog field and flue gas.

3. Temperature scale: the recovery reaction of nitrogen oxides of desulfurization and denitrification equipment occurs within a specific temperature scale. Because SNCR does not use catalyst, higher temperature is required to ensure recovery reaction (the reaction temperature scale of SNCR is 850~1150C). The reaction temperature has an important influence on the removal rate of nitrogen oxides in SNCR reaction. If the temperature is too low, it will lead to incomplete reaction of NH3, increase the amount of NH3 escaping, and form secondary pollution; With the increase of temperature, the molecular movement accelerated, and the ammonia transpiration and diffusion process strengthened.

After the above analysis, we should consider the temperature and the mixing degree of reverberants and flue gas when we want to use the desulfurization and denitrification equipment, so that the performance of the equipment can be brought into play and the impurities can be cleaned up. Of course, the temperature of the equipment at that time should be checked before use. If it meets the operation requirements, the next step should be taken to prevent problems in the use process.