| abstract |
The invention discloses an internal circulation contact reactor, comprising: a tank body; the tank body comprises a water inlet area, a main contact reaction area and a water outlet area which are sequentially communicated; the main contact reaction zone is internally provided with a middle partition plate which divides the main contact reaction zone into a first contact reaction gallery and a second contact reaction gallery, the water inlet zone is communicated with the first contact reaction gallery, and the water outlet zone is communicated with the second contact reaction gallery; two ends of the middle partition plate are respectively provided with a pump well, the bottom of the pump well is provided with an axial flow pump, the first contact reaction gallery side of one pump well is provided with an inverted-barb type shutter, the second contact reaction gallery side is provided with a suction water hole and an upward-raised type shutter, the first contact reaction gallery side of the other pump well is provided with a suction water hole and an upward-raised type shutter, and the second contact reaction gallery side is provided with an inverted-barb type shutter; based on two pump wells, an internal recycle flow of the main contact reaction zone is achieved. The invention realizes the adjustable flow of the internal circulation flow of the reactor and the stable and uniform flow state and efficiently saves the space of the main contact reaction area through the axial flow pump and the shutter overflowing holes. |