Self-circulation anaerobic reactor

Abstract

The invention discloses a self-circulation anaerobic reactor. The self-circulation anaerobic reactor comprises a container, a water inlet pipe and a water distribution system, wherein the water inlet pipe is communicated with the lower part of the container; the water distribution system is positioned on the lower part of the container and communicated with the water inlet pipe; a baffle plate, a backflow funnel and a return pipe which is communicated with the backflow funnel are arranged in the container; the upper part of the container is provided with a gas collecting hood, an overflow weir and a water outlet pipe; the gas collecting hood is communicated with the gas outlet pipe; the wall of the container is provided with a splitter plate; the upper part of the container is at least provided with one gas collecting hood which is communicated with the gas outlet pipe; the backflow funnel is positioned on the lower edge of the gas collecting hood; the lower edge of each gas collecting hood is at least provided with one layer of baffle plate; each layer of baffle plate on the lower edge of each gas collecting hood at least consists of two plates which are slantwise arranged in the container but are not crossed; the outlet of the return pipe which is connected with the backflow funnel is positioned on the lower part in the container; thus, the reactor contributes to mixing of inlet water and gas, has high starting speed and produces backflow and middle turbulence at the preliminary stage of starting.

Description

technical field [0001] The invention belongs to sewage treatment equipment. In particular it relates to internal loop reactors. Background technique [0002] The commonly used internal circulation reactor is to add a group of gas collection hoods in the middle of the reactor. The gas collection hoods can use the density difference between the gas-liquid mixture and the liquid formed by the gas generated by the material in the reactor to separate the gas. The liquid mixture is lifted above the liquid level in the reactor, and after the gas-liquid separation, the part of the liquid is returned to the bottom of the reactor by using the displacement difference of the liquid to form an internal circulation; however, the initial gas production of this reactor The starting speed is slow, so internal circulation cannot be generated. In addition, the power of the gas produced by this reactor can only be used once, so the flocculation in the reactor is insufficient, which is unfavora...

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Problems solved by technology

[0002] The commonly used internal circulation reactor is to add a set of gas collection hoods in the middle of the reactor. The gas collection hoods can use the density difference between the gas-liquid mixture and the liquid formed by the gas generated by the material in the reactor to separate the gas. The liquid mixture is raised above the liquid level in the reactor, and after the gas-liquid separation, the part of the liquid is returned to the bottom of the reactor by using the displacement difference of the liquid to form an internal circulation; however, the initial gas production of this reactor The starting speed is slow, so internal circulation cannot be generated. In addition, the power of the gas produced by this reactor can only be used once, so the flocculation in the reactor is insufficient, which is unfavorable for the mixing of gas and water.

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