Elution Technology of Tubular Vortex Enhanced Diesel-Contaminated Maifan Stone Particles

In view of the difficulty in repairing petroleum-contaminated soil, a tubular vortex elution device is designed based on previous research findings in this paper. Using the experimental method, the diesel-contaminated maifan stone was taken as the research object, the process of tubular vortex technology to repair the soil was simulated, and the particle motion visualization research was studied. The optimal structure of tubular vortex elution device was determined by adjusting the form and combination of spiral blades. It is found that the optimal structure of the tubular vortex elution device is that the number of spiral blade channels is three, the lead of spiral blade is 12.5 mm, the spiral blades are arranged alternately in different directions, and the number of spiral blades is four. Under the regulation of the vortex in the tube, the particles not only do the spiral revolution, but also do the rotation movement, thereby strengthening the desorption of the pollutants in the particles.