Charging silt separation device of plug flow reactor

Abstract

The invention provides a charging silt separation device of a plug flow reactor and in particular relates to the technical field of anaerobic fermentation production of marsh gas. The charging silt separation device comprises a sedimentation tank which is arranged in an underground or semi-underground place, wherein the sedimentation tank comprises a first sedimentation tank and a second sedimentation tank; a discharging end of the first sedimentation tank is connected with a feeding end of the second sedimentation tank through a transition tank and the bottom of the transition tank is obliquely arranged; the bottom of the second sedimentation tank is higher than the bottom of the first sedimentation tank; heat-insulation layers are arranged at the bottom in the sedimentation tank and thesurface of a side wall; each heat-insulation layer is provided with a vacuum cavity; each heat-insulation layer is made of an extrusion plate; the sedimentation tank is internally provided with a plurality of baffle plates which can be used for reducing the flowing speed of silt. According to the charging silt separation device of the plug flow reactor provided by the invention, a lot of the siltis intercepted through primary sedimentation in the first sedimentation tank; the second sedimentation tank is used for further settling to improve the sedimentation effect; furthermore, the sedimentation tank is arranged in the underground or semi-underground place so that heat loss can be reduced; the heat-insulation layers are arranged so that effective heat-insulation measures on excrement areeasy to carry out and subsequent reaction of the plug flow reactor is easy to realize.

Description

technical field [0001] The invention belongs to the technical field of biogas production by anaerobic fermentation, and in particular relates to a feed sediment separation device for a plug flow reactor. Background technique [0002] At present, due to the rapid development of biomass renewable energy, the development and application of aquaculture manure and crop straw, etc., the field of biogas production by anaerobic fermentation of straw manure needs to be more popularized. In the application process, after the manure is collected, it needs It is pumped to the plug-flow reactor for fermentation to produce biogas. During the application process, we found that the inside of the plug-flow reactor needs to be cleaned regularly. The reason is that the feces contain a large amount of sediment and accumulate at the bottom of the plug-flow reactor. If things go on like this, the effective volume of the plug flow reactor will be greatly reduced, and the gas production efficiency ...

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Problems solved by technology

[0002] At present, due to the rapid development of biomass renewable energy, the development and application of aquaculture manure and crop straw, etc., the field of biogas production by anaerobic fermentation of straw manure needs to be more popularized. In the application process, after the manure is collected, it needs It is pumped to the plug-flow reactor for fermentation to produce biogas. During the application process, we found that the inside of the plug-flow reactor needs to be cleaned regularly. The reason is that the feces contain a large amount of sediment and accumulate at the bottom of the plug-flow reactor. In the long run, the effective volume of the plug flow reactor will be greatly reduced, and the gas production efficiency will be low. At this time, how to remove the sediment contained in the front-end manure is an engineering problem that needs to be solved at present

The existing ones also use grit chambers for sand settling, but the separation effect is not good

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