Equipment and method for disposing kitchen waste based on high-temperature aerobic fermentation technology

Abstract

The invention discloses equipment and a method for disposing kitchen waste based on a high-temperature aerobic fermentation technology. The equipment comprises a shell, a waste conveyor and a waste fermentation tank, wherein a pouring opening through which the waste is poured is formed in the shell, the shell is step-shaped, and the pouring opening is formed in the shell at the position of the lowest step, so that the waste is convenient to pour; the waste conveyor is arranged slantly, and the inlet end of the waste conveyor is arranged at the bottom of the pouring opening; and the outlet end of the waste conveyor communicates with the waste fermentation tank, a heating source is arranged on the periphery of the waste fermentation tank so as to heat the waste in the waste fermentation tank, the waste fermentation tank is internally provided with at least one hollow shaft, a plurality of through holes are formed in the circumferential direction of the hollow shaft, and a filter layer is arranged at the bottom of the waste fermentation tank so as to discharge liquid generated through waste fermentation. Meanwhile, the requirement for the stirring effect of stirring paddles is reduced, and the stirring power is low. The filter structure is simple and reliable. The filter layer is arranged at the bottom of the fermentation tank, and liquid in the material is filtered by adopting fine sand, so that the equipment is simple in structure and good in filter effect.

Description

technical field [0001] The invention relates to kitchen waste treatment, in particular to a kitchen waste treatment equipment and method based on high-temperature aerobic fermentation technology. Background technique [0002] Kitchen waste mainly comes from food processing leftovers (kitchen waste) and food residues (swill) produced in the catering service industry, households, and canteens of enterprises and institutions. Food and kitchen waste treatment refers to a systematic method for on-site treatment and resource utilization of food and kitchen waste. With the rapid development of our country's economy and the gradual acceleration of urbanization, the output of kitchen waste is showing an upward trend year by year. In large and super-large cities in China, such as Beijing, Shanghai, Shenzhen, etc., the daily output of kitchen waste has reached thousands of tons, and the annual output of kitchen waste in the country has reached 10 million tons. If it is simply landfill...

AI Technical Summary

Problems solved by technology

Bad smells are likely to be produced near the garbage collection site, causing people's sensory resentment; due to the high water content of kitchen waste, there are a series of problems in the transportation process

Irregular transport vehicles are prone to leakage and dumping of kitchen waste, seriously affecting city appearance, city appearance and traffic; the most important thing is that most of the garbage from urban catering enterprises is collected by farmers and used directly as breeding feed. Disposal enters the human food chain, endangering the health of the people; at the same time, waste oil is collected and re-refined to become cheap edible oil, which is circulated in the market again, endangering the health of the people

[0004] At present, the treatment technologies of food waste mainly include landfill, incineration, feed treatment, anaerobic fermentation and aerobic composting, etc. Among them, anaerobic fermentation and aerobic composting have more potential, but the treatment period of these two methods is relatively long , it is difficult to meet the requirements of the daily production and clearing of kitchen waste. At the same time, the exposed waste disposal is easy to emit a large unpleasant smell, and there is a problem of polluting the environment. In summary, there is no economical system equipment to deal with Better and faster treatment of food waste

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