Multilayer combined device and process for dynamically fermenting biomass waste to prepare fertilizer

Abstract

The invention discloses a multilayer combined device and process for dynamically fermenting biomass waste to prepare a fertilizer. The device comprises a feeding module, a stirring and fermentation module, a discharging module, a hot air module for heating the stirring and fermentation module and a control module, wherein the feeding module, the stirring and fermentation module, the discharging module and the hot air module are arranged in sequence, a power device installing zone, a containing cavity for stirring and fermentation, a stirring mechanism installed in the containing cavity and a heat transfer structure for heat conduction are built in the stirring and fermentation module, the stirring and fermentation module is also provided with a feeding port connected with the feeding module, a discharging port connected with the discharging module, a hot air inlet connected with the hot air module and a hot air outlet formed in the side face of a housing. The fertilizer preparing machine adopts multilayer combined structure design, can achieve dynamic fermentation, the fermentation process is performed in a sectioned mode without mutual interference, the energy consumption is lower, and the speed and efficiency are more than three times than an original mode. The device and the process can be applied to preparation of fertilizers, mushroom base materials or feeds and achieve cyclic utilization of the biomass waste.

Description

technical field [0001] The invention relates to a treatment equipment and process for biomass waste, in particular to a multi-layer combined biomass waste dynamic fermentation fertilizer making equipment and process. Background technique [0002] In recent years, biomass waste has become a new source of rural pollution. Every year during summer harvest and autumn and winter, a large amount of biomass waste is piled up, buried or burned in the field, polluting the environment. The main treatment methods for biomass waste in my country are centralized landfill and incineration. For this reason, annual transportation and disposal costs are expensive, and land available for landfill is dwindling. In fact, the usable value of biomass waste is extremely high, and scientific treatment can be made into high-quality bio-organic fertilizer, which can be returned to the soil, greatly increasing soil organic matter and nutrients, and solving unfavorable factors such as soil compaction ...

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Problems solved by technology

[0004] At present, the harmless treatment and fertilizer utilization of domestic biomass waste are treated by the traditional composting method. The most advanced method is to crush the biomass waste, then add bacterial strains, and concentrate the natural composting; the biomass Although the technology of producing biochar and organic fertilizer from waste is relatively mature, the radius of collection operation is too large, the transportation cost is too high, the enterprise is unprofitable, and the enthusiasm of farmers to send raw materials cannot be raised.

[0005] At present, the general horizontal ribbon mixer or horizontal twin-shaft paddle mixer is generally used to pre-mix the biomass waste, and then directly transfer it to the fermenter for fermentation manually or mechanically. There are two types of fermentation methods. The main disadvantages: first, the fermentation time is long and the fermentation efficiency is very low; second, due to the complex structure of the equipment, it is difficult to disassemble, and it is impossible to clean all parts of the fermentation tank thoroughly, resulting in a large amount of residue in the fertilizer, which cannot be guaranteed Sterile environment, high energy consumption, unable to form industrial standardized fermentation process

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