System and method for agglomerating particulate matters through ultrasonic atomization of charged turbulence

Abstract

The invention relates to a system and method for agglomerating particulate matters through ultrasonic atomization of charged turbulence. The system comprises a runner main body, an entrance section, an atomization charging device, a premixing section and a turbulence disturbance section, wherein the entrance section, the atomization charging device, the premixing section and the turbulence disturbance section are sequentially arranged on the runner main body; the atomization charging device is used for spraying charged ultrasonically-atomized drops into the runner main body; a plurality of V-shaped mixing blades are distributed in the premixing section, openings of the V-shaped mixing blades back to an incoming flow direction, and two ends of the V-shaped mixing blades are fixedly arranged on the inner wall of the runner main body; the turbulence disturbance section comprises a plurality of turbulence disturbance components; the turbulence disturbance components include round arc plate surfaces and protruded bluff bodies; the protruded bluff bodies are arranged on arched side surfaces of the round arc plate surfaces; the turbulence disturbance components are distributed in the runner main body by taking the flow direction of exhaust gas as a row and the flow direction of vertical exhaust gas as a column; and the turbulence disturbance components in the same row are distributed along the same direction, and the turbulence disturbance components in the adjacent rows are distributed along the opposite direction.

Description

technical field [0001] The invention belongs to the technical field of emission control of industrial smoke and dust particles, and in particular relates to a system and method for agglomerating particles by using ultrasonic charged turbulent flow. Background technique [0002] At present, the problem of large-scale smog pollution in my country has become increasingly prominent. Studies have shown that the aerodynamic diameter of fine particles in coal-burning flue gas is less than 2.5 μm, referred to as PM2.5, which is the main reason for the high concentration of atmospheric aerosols and the formation of haze weather. At present, for the purification of fine particles, domestic and foreign control technology research mainly uses physical and chemical methods to agglomerate fine particles into larger particles, and then remove them with the help of traditional dust removal equipment, so as to better improve the removal efficiency of fine particles . At present, the main a...

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Problems solved by technology

By arranging the combination of cylinder and "+" type vortex, the formation of small vortex is increased, and the turbulent reunion effect is strengthened, but this arrangement is insufficient for the wake of the vortex, and the agglomeration effect is not ideal.

[0005] Publication No. CN100531875 Chinese Patent "Method and Apparatus for Mixing Fluid Flows to Coagulate Particles" discloses a method and apparatus for mixing fluids to agglomerate particles designed by indigo company, the invention takes into account Fine particles play a dominant role in the viscous force in the fluid. A composite mixed flow component is proposed to generate large-scale turbulent flow and take into account the small-scale turbulent flow area in the branch flow to increase the probability of interaction between fine particles, but the design structure Complicated, and the arrangement form is not conducive to the flow of fluid, it is easy to cause a large pressure loss, and the adhesion efficiency problem caused by the adhesion characteristics of the particle surface is not considered, etc.

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