A combined aerobic fermentation aeration device

Abstract

A combined aerobic fermentation aeration device belongs to the technical field of aeration devices. The device comprises a base plate and an aeration cap; the base plate is a hollow case; a plurality of air inlets are disposed on the bottom surface of the case; an aeration hole is disposed at the top surface of the case; holes for wedge leg insertion are disposed at the periphery of the aeration hole at the top surface of the case; the aeration cap is fixed by the wedge legs to cover right above the aeration hole at the top surface of the case so as to prevent aeration hole obstruction; a gap is left between the aeration cap and the base plate top surface. According to the invention, the composting fermentation aeration device is guaranteed to have good permeability, seepage resistance, obstruction resistance, simple structure, convenient application, and long service life.

Description

Technical field [0001] The invention relates to a combined aerobic fermentation and aeration device, which is applied to the aerobic fermentation and composting of urban sludge, livestock and poultry manure and organic waste, and belongs to the technical field of aeration devices. Background technique [0002] At present, the compost aeration process technology mostly uses vent holes or pipe-type holes in the concrete slab, and there is no dedicated aeration device. However, the aeration process of the concrete plate open-hole compost is complicated, it is easy to be blocked during the compost fermentation, which is not conducive to the passage of air, and the oxygen content in the fermentation pile cannot reach the predetermined value, resulting in anaerobic fermentation and a large amount of odor. In addition, it is difficult to clean up the vent holes after being blocked. In order to achieve sufficient aeration, more aeration holes must be arranged on the concrete slab, which ...

AI Technical Summary

Problems solved by technology

[0002] At present, the compost aeration technology mostly adopts air holes or pipe-type openings on the concrete slab, and there is no special aeration device yet.

However, the aeration process of the open-hole compost of the concrete plate is complicated, and it is easy to be blocked during the compost fermentation, which is not conducive to the passage of air, and the oxygen content in the fermentation pile cannot reach the predetermined value, resulting in anaerobic fermentation and a large amount of odor.

In addition, it is difficult to clean the air holes after they are clogged. In order to achieve sufficient aeration, more air holes must be arranged on the concrete slab, which will affect the structural rigidity of the slab and increase the construction cost.

The pipe-opening compost aeration process also has the problem of easy clogging during compost fermentation. At the same time, the overall resistance to deformation of the pipe is small, and the pipe is prone to rust and corrosion in an acidic environment, which affects the service life of the aeration pipe.

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