A multi-stage biogas fermentation device for collecting scum and organic waste

Abstract

The invention discloses a multi-graded dross collection and organic waste marsh gas fermentation device. An organic waste crusher is connected with a feeding bucket; a discharging hole is connected with a fermentation chamber of an organic waste fermentation tank; a gas storage chamber is arranged at the top of the fermentation chamber; a porous dross stopping plate is arranged between the gas storage chamber and the fermentation chamber; the gas storage chamber is connected with an overflowing pipe; the other end of the overflowing pipe is connected with a liquid storage box; the liquid storage box is connected with the gas storage chamber and the feeding bucket through a reflowing pipeline; the fermentation chamber is internally provided with at least two dross collecting covers which are arrayed up and down; dross lifting pipes communicated with the gas storage chamber are arranged at the tops of the dross collecting covers; the bottom of the porous dross stopping plate is fixedly connected with a dross reflowing pipe; the dross reflowing pipe stretches to the lower part of the fermentation chamber and is communicated with the gas storage chamber. By arranging a multi-graded dross collection structure and a dross washing and reflowing structure, dross can be effectively collected and a crusting hidden danger is eliminated; the capacity of the fermentation chamber and the capacity of the gas storage chamber are effectively improved, and the utilization rate of raw materials and the marsh gas yield are improved.

Description

technical field [0001] The invention belongs to the technical field of biogas fermentation, and relates to a multistage biogas fermentation device for collecting scum and organic garbage. Background technique [0002] With the development of economy, the rapid expansion of city scale and the rapid increase of urban population, more and more organic wastes are produced. Organic waste contains high moisture and organic matter content, which is easy to decompose, and it is easy to produce odor and sewage. If it is not treated in time, it will cause secondary pollution to the environment, and organic waste will accumulate for a long time, which will easily breed harmful substances such as pathogenic microorganisms and mycotoxins. At present, the treatment methods of organic waste mainly include sanitary landfill, feed processing, aerobic composting, extraction of biodiesel and anaerobic digestion. However, during the anaerobic digestion process of the current anaerobic digesti...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a multi-stage biogas fermentation device for collecting scum and organic waste, which can effectively solve the problems of difficult cleaning of scum in the fermentation process of organic waste in the anaerobic digestion device, low utilization rate of raw materials, and low gas production rate , so that organic waste can be fully anaerobically digested to achieve maximum resource treatment, thereby improving the utilization rate of raw materials and increasing the gas production rate

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