Black film biogas digester with biogas self-circulation stirring and strong deslagging functions

Abstract

The invention discloses a black film biogas digester with biogas self-circulation stirring and strong deslagging functions, and relates to the technical field of biogas digesters, the black film biogas digester comprises a water inlet end and a water outlet end, the water inlet end is provided with a water inlet pool, and the water inlet pool is connected with a water inlet distribution pipe through a water inlet pipe; a water outlet tank and a circulating water tank are arranged at the water outlet end, the water outlet tank is connected with a water outlet pipe, the circulating water tank is connected with a circulating water inlet pipe, and a circulating water pump is arranged in the circulating water tank and can adjust sucked biogas, so that the biogas in the adjustable circulating aeration self-stirring area is controlled; sludge and water in the adjusting type circulating aeration self-stirring area in the black film biogas digester are in a completely mixed state, the anaerobic reaction efficiency is greatly improved, full contact of anaerobic sludge and wastewater is facilitated, the metabolism rate of the anaerobic sludge is increased, and the anaerobic sludge treatment effect is improved. According to the black film biogas digester with the biogas self-circulation stirring and strong deslagging functions, the stationarity of pipelines in the adjusting type circulation aeration self-stirring area and the sedimentation deslagging area is effectively guaranteed, and the pipelines laid in the digester are prevented from floating upwards.

Description

technical field [0001] The invention relates to the technical field of biogas pools, in particular to a black-film biogas pool with self-circulating and stirring biogas and strong slag discharge functions. Background technique [0002] The black-film biogas digester, commonly known as the covered lagoon, is a super-large biogas digester integrating fermentation and gas storage. Due to its characteristics of shock load resistance, low operating cost, low construction cost, and convenient construction, it is favored by the majority of farmers. . However, the black film biogas digester generally occupies a large area, and the activated sludge in the pond is often still at the bottom of the pond, which cannot be fully mixed with the wastewater, and the sludge settles at the bottom of the pond. It is difficult to completely remove the sludge at the bottom of the pool, so the wastewater treatment efficiency is low and unstable. The black-film biogas digester runs for two to three...

AI Technical Summary

Problems solved by technology

The bottom of the pool is equipped with a biogas aeration supervisor, a biogas aeration branch pipe, and an aeration pan. The aeration pan hose is wound and fixed on the iron frame of the aeration pan. The circulating gas aerates and stirs the bottom of the tank. This patent can effectively solve the problems of large area occupied by the black film biogas tank, uneven mixing of feed and liquid, easy deposition of suspended solids and low reaction efficiency, but there are also difficulties in construction and aeration. In addition, due to the uneven sinking of the bottom of the black film biogas digester, the standing film baffles are easy to collapse, thereby causing damage to the black film biogas digester. Therefore, it is urgent for those skilled in the art to design a new biogas digester

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