Tri-phase separator of anaerobic reactor

Abstract

The invention relates to a tri-phase separator used for an up flow type anaerobic reactor, which consists of a reflection cone, a cone-shaped guide cylinder arranged on the reflection cone, a cylindrical guide cylinder arranged at the center of the cone-shaped guide cylinder, and a gas shield arranged at the upper end of the cone-shaped guide cylinder, wherein a vent pipe is arranged at the outside below the top part of the cone-shaped guide cylinder, and the top part of the gas shield is provided with a vent pipe, an annular passage is arranged between the cone-shaped guide cylinder and the cylindrical guide cylinder, and an annular overflow passage is arranged between the cone-shaped guide cylinder and the upper-end gas shield. In the invention, the cylindrical guide cylinder is added in the cone-shaped guide cylinder to separate the influx inlet from the reflux inlet of muddy water, thus having simple structure, solving the problem that the influx inlet and reflux inlet of the tri-phase separator are overlapped, improving the separating effect of gas, liquid and solid, keeping stable liquid flow of sludge settling areas, and improving waste water removal efficiency of the anaerobic reactor.

Description

technical field [0001] The invention relates to a three-phase separator used in an upflow anaerobic reactor, belonging to the technical field of water treatment. Background technique [0002] The upflow anaerobic reactor has the advantages of simple structure, high organic load, and wide adaptability, and has been widely used in the treatment of various industrial wastewater. [0003] Industrial wastewater enters the anaerobic reactor from the bottom of the reactor through the water distributor, and fully contacts with anaerobic microorganisms in the reaction zone, biochemical reactions occur to generate biogas, and a large number of air bubbles are generated. The air bubbles carry water and sludge to form gas-liquid-solid The mutually inclusive mixture rises together into the three-phase separator, and first collides with the reflector cone, causing the separation of mud and gas. The degassed mud-water mixture enters the sedimentation zone from the inlet for mud-water separ...

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Problems solved by technology

[0005] Conventional three-phase separators mainly have the following problems: the inflow port and the return port are overlapped, so that a large amount of returning sludge and the rising water flow interfere with each other, and at the same time, the gas that is not completely separated will enter the sedimentation area with the sludge, affecting The sedimentation of the sludge is hindered, and the high sludge concentration in the reactor cannot be maintained.

[0006] The inlet and return ports of the improved three-phase separator are separated, which can improve the sedimentation efficiency, but there is a problem of complex structure. If the design is not reasonable, the inlet water may enter the sedimentation area from the return port, resulting in difficult sludge return to reaction area

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