Kitchen garbage self-heating drying and continuous fertilizer preparation device and method

Abstract

The invention discloses a kitchen garbage self-heating drying and continuous fertilizer preparation device and method. The device mainly comprises a pre-fermentation area, a main fermentation area, adecomposition area, an odor purification area and a discharge area, continuous flowing of materials among all the areas is achieved by manually drawing out the fan-shaped material passing plates, theodor purification area comprises an air extraction unit and a deodorization unit, and under the action of the air extraction unit, external air sequentially flows into the pre-fermentation area, the main fermentation area and the decomposition area through a one-way air inlet valve and an air pipeline and is used for ventilation oxygen supply, drying and automatic cooling in the kitchen waste aerobic composting process,generated tail gas containing malodorous components is pumped into the deodorization unit for purification treatment and is finally discharged through the gas outlet, by operating the fan-shaped material passing plates in all the areas and throwing fresh kitchen garbage from bottom to top every day, fertilizer preparation, self-heating drying and odor purification of the kitchen garbage are synchronously achieved. According to the invention, on-site reduction and fertilizer application of kitchen garbage in residential areas can be realized, the collection, transportation and subsequent treatment costs are greatly reduced, and a clean and odorless garbage classification environment is created at the same time.

Description

technical field [0001] The invention belongs to the technical field of domestic waste treatment and disposal, and in particular relates to a device and method for self-heating drying of kitchen waste and continuous fertilizer production. Background technique [0002] Kitchen waste accounts for more than 60% of domestic waste, and it is the key object of domestic waste classification and disposal. Anaerobic digestion and aerobic composting are the two mainstream technologies for kitchen waste treatment, and centralized collection, transportation and treatment are basically adopted. On the one hand, centralized collection and transportation lead to high costs due to long-distance transportation, and on the other hand, environmental pollution may be caused by odor and leachate overflow along the way. In this context, the local and nearby resource treatment of kitchen waste has a good application prospect. It can not only greatly reduce the cost of collection and transportation...

AI Technical Summary

Problems solved by technology

However, at present, there is still a lack of miniaturized kitchen waste resource treatment devices that meet the requirements of daily production, daily investment, odorless environmental protection, etc.

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