Kitchen waste pretreatment system and sorting method therefor

Abstract

The invention discloses a kitchen waste pretreatment system and a sorting method therefor. The kitchen waste pretreatment system comprises an air purification subsystem, a waste gas treatment subsystem, a waste transmission subsystem, a hydrodynamic sorting subsystem and a discharging subsystem. Air is introduced into the air purification subsystem and is fed into the top of a workshop by an output end of the air purification subsystem. The waste gas treatment subsystem, the waste transmission subsystem, the hydrodynamic sorting subsystem and the discharging subsystem are respectively arranged under the air purification subsystem. The waste gas treatment subsystem introduces air, removes an odor produced in waste transmission, and transmits pollutant-free gas to a chimney. Waste is introduced into the waste transmission subsystem. An output end of the waste transmission subsystem is connected to the hydrodynamic sorting subsystem. The hydrodynamic sorting subsystem is used for sorting of light waste, heavy waste and organic waste. The sorted light waste, heavy waste and organic waste are discharged by the discharging subsystem. The kitchen waste pretreatment system realizes air purification in a kitchen waste storage space thereby eliminating an odor, realizes automatic sorting of inorganic impurities, and realizes reduction, harmless treatment and recycling of kitchen waste.

Description

technical field [0001] The invention relates to an environment-friendly and renewable energy system and an application method thereof, in particular to a food waste pretreatment system and a sorting method thereof. Background technique [0002] In the classification of urban domestic waste, the kitchen waste formed by residents in the process of living consumption is called kitchen waste, including perishable food waste produced by households, restaurants, and unit canteens. The material composition in food waste is complex, with high moisture and oil content. If it is incinerated together with domestic waste, it will greatly reduce the heat energy utilization of incineration. Toxic gas, if it is directly used as landfill, it will occupy a large amount of landfill site and produce a large amount of leachate, which not only pollutes a large area of ​​land, but also causes great pollution to the surrounding environment and groundwater. However, kitchen waste contains rich orga...

AI Technical Summary

Problems solved by technology

Due to the large size distribution range, complex composition and many components of the waste, the effect of magnetic separation is affected, and because the oil contained in the traditional Chinese diet often makes the kitchen waste sticky and cannot be manually sorted

Therefore, the process has low efficiency, poor effect, difficult coordination and other factors, and high operation and maintenance costs; the equipment occupies a large area

In addition, because food waste is easily acidified, it is easy to generate foul-smelling gas during its pre-treatment process. The smell is strong and easy to spread.

Most of the existing garbage sorting equipment is open-ended, relying on ventilation to disperse the strong odor can only play a role in relieving the odor, and does not really eliminate the odor. People who have been in this working environment for a long time are prone to dizziness and nausea Symptoms affecting health

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