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Eddy current reactor:
The vortex reaction tank is a reinforcement of folded plate reaction, grid reaction, and grid reaction. A vortex street reactor is installed perpendicular to the water flow direction in the reaction tank to generate high-frequency spectral vortices when water encounters the vortex street reactor, providing micro hydrodynamic conditions for the full contact between the reagent and particles in the water, and producing dense alum flowers. Design classification and flow control according to reaction requirements. Therefore, the ideal reaction effect can be obtained with a short reaction time of only 8-12 minutes, simple construction, easy installation, strong adaptability to changes in raw water quantity and quality, and can adapt to difficult treatment periods and slightly polluted water quality. The flocculation effect is stable.
The flocculation mechanism of vortex street reactor
When a large number of vortex reactors are placed in the coagulation reaction zone, due to the relatively low flow velocity inside the reactor, a suspended floc zone is formed inside the vortex reactor in the upward flow zone. The suspended flocs have a flocculation effect on the destabilization colloids in the water flow. Due to the large total volume of suspended flocs in each vortex reactor in the upward flow zone, three-dimensional contact flocculation is formed. The flocs in the vortex reactor have high growth quality, and those that grow too large will be broken into smaller flocs under the action of vortices to maintain flocculation ability (excessive flocs will reduce the total surface area and adsorption energy). The flocs with lower density will be broken and re flocculated into flocs with higher density under the action of micro vortices. There is arbitrage in precipitation separation.
Structure and Characteristics of Eddy Current Reactor
1） Structure of Eddy Current Reactor
The vortex reactor is made of porous hollow spheres made of ABS plastic, with a surface porosity of 45% -66%. The inner and outer surfaces of the spheres are made rough, and the wall thickness of the vortex reactor is generally around 2mm.
2） Process characteristics of vortex reactor
1. High coagulation efficiency. The micro vortex coagulation process creates efficient coagulation and flocculation hydraulic conditions, and its coagulation efficiency is much better than traditional coagulation processes, as well as grid coagulation processes. It can greatly shorten the reaction time, which means that compared with traditional processes, the water production can be increased by 1-2 times, occupying less land and saving investment.
2. Strong adaptability to changes in water quality and quantity. The micro vortex coagulation process has strong adaptability to changes in water quality and quantity, because its hydraulic conditions for coagulation do not mainly depend on the macroscopic velocity of the water flow, but on the formation of vortices. The formation conditions of vortices mainly depend on the change in flow velocity, that is, the opening rate of the vortex reactor. In addition, the upward flow micro vortex coagulation zone accumulates a large amount of active flocs, which have a buffering effect on changes in water quantity and quality. During periods of water stoppage or tank emptying, these flocs will not settle, plate, or be discharged outside the tank, allowing the micro vortex coagulation tank to work intermittently.
3. Easy to implement. The eddy current reactor has no directionality and can be directly put into water for use. It accumulates without blocking the wall holes and does not require fixed installation.
4. Stable operation and low drug consumption.
5. Long term use and easy maintenance. The eddy current reactor is made of ABS plastic and has a service life of several decades. Compared with network coagulation, the wall holes of the vortex reactor are less prone to blockage because the vortex reactor is in a semi suspended state in water, and its rotational motion under the action of water flow can cause floating debris blocking the wall holes to rise to the water surface and be manually removed. Even if the vortex reactor is blocked, it may be easy to remove it from the pool for thorough cleaning.
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