Vertical Anaerobic Reactor

Abstract

The invention discloses a novel vertical anaerobic reactor, which comprises a tank body, a material circulation stirring assembly arranged in the tank body, and a biogas slurry separator; the material circulation stirring assembly includes a heating reaction tube, and the heating reaction tube controls the material reaction zone in the tank body Separated into the first circulation reaction chamber and the second circulation reaction chamber, the high-pressure biogas buffer tank on one side of the tank sprays biogas above the heating reaction tube through the first biogas discharge pipe, so that the material forms a vertical circulation in the tank; The biogas slurry separator includes a separator shell, and a drainage casing is fixed inside the separator casing; at the same time, a drainage pipe is provided at the bottom of the drainage casing; a circulation pump is also provided on one side of the tank, and the circulation pump discharges the material in the reaction zone. The material is transported into the separator shell; the bottom of the separator shell is also provided with a sludge discharge pipe for transporting the sludge into the tank. The vertical anaerobic reactor can fully stir and mix the materials in the tank, and realize the discharge of biogas residue and the return of sludge.

Description

technical field [0001] The invention relates to anaerobic treatment equipment for domestic garbage, more specifically, it relates to a novel vertical anaerobic reactor. Background technique [0002] Kitchen (kitchen waste) waste contains more than 80% of water, and the liquid phase after pretreatment has the characteristics of high COD, high salt, high SS, etc. In the current normal anaerobic reactor operation, including UASB, CSTR, etc., Sludge loss, fatty acid calcium accumulation, and even acidification will occur. At the same time, the gas production efficiency also decreases with time. COD degradation efficiency gradually decreased. This is related to the reduction of sludge load caused by anaerobic sludge loss, and the poor mass transfer effect caused by uneven stirring, and the inert substances, scum, etc. cannot be removed in time to reduce the effective space. [0003] The Chinese patent application publication number CN101823793A discloses an anaerobic reactor, ...

AI Technical Summary

Problems solved by technology

[0004] 1. The material under the anaerobic reactor is easy to settle and cannot go up, and the material above floats on it and cannot come down, which makes the material easy to stratify and cannot meet the requirements of homogenized materials;

[0005] 2. The anaerobic reactor cannot complete the homogeneous mixing of anaerobic sludge and materials, and materials containing light substances are easily enriched at the top of the tank under the action of buoyancy and biogas lift

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