Highly-efficient back-mixing roller-type aerobic composting reaction device

Abstract

The invention discloses a highly-efficient back-mixing roller-type aerobic composting reaction device. The highly-efficient back-mixing roller-type aerobic composting reaction device comprises a rotating cylinder body which is connected with a driving unit capable of realizing rotation around a shaft, wherein the rotating cylinder body is horizontally inclined downwards for a certain angle along the direction from a feeding inlet to a discharging outlet; a plurality of material shoveling plates are fixedly arranged on the inner peripheral wall of the rotating cylinder body; at least two groupsof material shoveling plates are distributed along the circumferential direction of the rotating cylinder body; each group of material shoveling plates are uniformly distributed along the axial direction of the rotating cylinder body at intervals; the material shoveling plates in each group are arranged in a staggered mode; each material shoveling plate is composed of a bottom plate and a baffleplate; one ends of bottom plates are fixed with the inner circumferential wall of the rotating cylinder body; and the other ends of the bottom plates face a feeding direction and incline towards the center of the rotating cylinder body with an inclination angle in a range of 45 degrees to 65 degrees. According to the invention, the material shoveling plates are used for pushing a decomposed material at a rear end position to efficiently flow back to the front end of the reactor for inoculation of a fresh material to increase the abundance of microorganisms in the fresh material and promote rapid degradation of organic wastes, so the composting efficiency is effectively improved, and the product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of solid waste aerobic composting reaction devices, in particular to a high-efficiency back-mixing drum-type aerobic composting reaction device. Background technique [0002] With the rapid development of the economy, the generation of solid waste such as urban and rural domestic waste, garden waste, livestock and poultry manure, and agricultural waste in China has increased sharply. Among them, the annual production of urban and rural (including rural) domestic waste has exceeded 400 million tons. , the annual output of crop straw waste reaches 200 million tons. At present, these solid wastes are mainly incinerated or sanitary landfill. The flue gas produced by incineration will pollute the atmospheric environment, especially dioxin, which is highly toxic and belongs to persistent organic pollutants. It stays in the environment for a long time and is stable and difficult to decompose. In addition, incinera...

AI Technical Summary

Problems solved by technology

Because the drum reactor is generally a plug-flow reaction, different batches of materials are basically not mixed, it is difficult to inoculate fresh materials with decomposed compost, and the composting of fresh materials is slow to start, and it is difficult to achieve rapid humification of organic waste

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