Abstract
Due to the turbulent mixing between agglomeration agent and dust, the number of collisions per unit time between particles and droplets increases with the particle size in the process of chemical agglomeration, and the agglomeration efficiency increases accordingly. Turbulent agglomeration can promote the agglomeration effect of subsequent chemical agglomeration by strengthening the collision between particles and agglomerant droplets. The author used chemical agglomeration and turbulent mixing to cooperate in order to improve the efficiency of dust removal. Turbulent mixing can promote chemical agglomeration from agglomeration effect and dust removal efficiency, which can greatly improve electric dust removal technologyTurbulent mixing is the most intense at the inlet box position, and the agglomeration effect is the best. Turbulent mixing synergistic effect has an effect on dust removal efficiency. Compared with the three curves, it can be seen that the dust removal efficiency increases rapidly with the increase of agglomeration concentration, the curve trend changes obviously. The dust removal efficiency can reach 98.36 % and it is the highest in the middle section when the wind speed is greater than 11.2m/s. Through the experiment, the turbulent mixing and chemical coagulation method has a good application prospect in the electrostatic precipitators.
Highlights
In recent years, the atmospheric environment continues to deteriorate, haze weather occurs frequently, which seriously endangers human health and restricts the sustainable development of economy
In order to find a more economical and environmentally friendly agglomeration method, the effect of turbulent mixing caused by air disturbance between dust and agglomeration on dust agglomeration effect was further explored by changing the injection position of agglomeration agent
Compared with the changing trend of the three curves, it can be seen that the dust removal efficiency increases rapidly with the increase of agglomeration liquid concentration, the curve trend changes obviously, the highest dust removal efficiency can reach 98.36%, and the middle section curve changes with the increase of agglomeration liquid concentration
Summary
The atmospheric environment continues to deteriorate, haze weather occurs frequently, which seriously endangers human health and restricts the sustainable development of economy. The dust removal efficiency of gasifier gas is higher than that of ordinary dust removal device, it is difficult to capture the fine particle dust in gasifier gas because it is relatively large, which affects the effect of dust removal. When turbulence disturbance occurs in the flow field, the motion state of dust becomes chaotic and disordered, which increases the collision probability with other particles, and the agglomeration efficiency increases[2,3]. The collision probability between particles and droplets becomes an important factor affecting agglomeration efficiency[6,7]
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