Internal circulation anaerobic reactor with large diameter of more than or equal to 3m

Abstract

The invention discloses an internal circulation anaerobic reactor with large diameter of more than or equal to 3m. A first-level three-phase separation device is arranged at the top end of a first-level high-load reaction area, and a second-level three-phase separation device is arranged at the top end of a second-level low-load reaction area; a center lifting sleeve is sealed at the bottom end of a gas-liquid separation chamber; the center lifting sleeve is internally provided with a concentric center backflow pipe in a sleeving manner; the upper end of the center backflow pipe extends into the gas-liquid separation chamber; the tail end of the center backflow pipe is connected with a cyclone water distributor in an incoming water mixing area; the first-level and second-level three-phase separation devices respectively comprise a herringbone separator and a gas-liquid lifting branch pipe communicated with the top end of each herringbone separator; the gas-liquid lifting branch pipe of the first-level three-phase separation device is in sealed connection with the tail end of the center lifting sleeve; the gas-liquid lifting branch pipe of the second-level three-phase separation device is connected with a two-level gas collection hood below the bottom end of the gas-liquid separation chamber; a two-level exhaust pipe is arranged on the gas collection hood and extends out of the cylinder; and a partition plate is arranged in the herringbone separator of the first-level three-phase separation device.

Description

technical field [0001] The invention relates to the field of sewage treatment, and is a treatment device for biodegradable organic waste water. Background technique [0002] Chinese patent ZL201320178652.5 discloses an internal circulation anaerobic reactor consisting of a shell, an inlet water distributor, a first-stage three-phase separator, a second-stage three-phase separator, a concentric main riser, and an auxiliary riser , a gas-liquid separation chamber, a spray defoaming device, a swirling conical buffer bucket, a downcomer, a weir, an annular mud hopper, and an annular string-hole mud discharge pipe; the shell is cylindrical and is separated by the first stage three-phase The upper and lower parts are divided into the first-stage fluidized bed reaction chamber and the second-stage deep purification reaction chamber; the first-stage three-phase separator is connected with the gas-liquid separation chamber through a concentric main riser; the second-stage three-phase...

AI Technical Summary

Problems solved by technology

Because the height of the gas-liquid riser is directly proportional to the lifting flow rate, which affects the return flow of the gas lift, directly affects the treatment effect of the anaerobic reactor, and needs to be improved

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