In-situ comprehensive utilization processing method of kitchen wastes and complete set of processing equipment for in situ comprehensive utilization processing method

Abstract

The invention discloses an in-situ comprehensive processing method of kitchen wastes and complete set of processing equipment for the in-situ comprehensive utilization processing method. The method can timely process the kitchen wastes into available oil (commonly known as gutter oil), a dry solid residual food mixture and domestic sewage which can be directly discharged in situ through the stepsof impurity sorting, tearing and crushing of hard solids, secondary crushing, extrusion solid-liquid separation and dry sterilization treatment; the whole additive process achieves continuous production, and food materials and oil in the kitchen wastes are secondarily recycled; the generated waste liquid is domestic sewage and can be directly discharged for treatment, so that secondary pollution can be avoided. For oil, feed and directly-discharged domestic sewage processed by the kitchen wastes in situ, the oil can be centrally and directionally sold, the dry solid residual food mixture can be used as poultry feed or feed ingredients and the produced sewage can be directly discharged into a domestic sewage pipeline for centralized treatment, so that the kitchen wastes can be changed intotreasures in situ and corresponding processing equipment is provided.

Description

technical field [0001] The invention relates to a method for treating kitchen waste and processing equipment thereof. Background technique [0002] In daily life, a large amount of food waste is produced every day. Food processing waste and edible residues produced by every family, school, canteen and catering industry are commonly called food waste. The composition of food waste is very complicated. Including oil, water, fruit peels, vegetables, rice noodles, fish, meat, bones, shells and other mixtures of substances. With the improvement of people's material living conditions and the acceleration of urbanization, the amount of kitchen waste is increasing year by year, and the environmental and ecological problems caused by kitchen waste are becoming more and more significant. It is imminent to deal with kitchen waste. If it cannot be dealt with in time, it will not only affect the city appearance and living environment, but also affect people's health. Kitchen waste cann...

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Problems solved by technology

[0009] 1. The crushing and direct discharge method, the kitchen waste is crushed and discharged directly through the pipeline. This method is only applicable to the situation where the amount of kitchen waste is small. This method is easy to cause blockage of the drainage pipe and increase the burden of urban sewage discharge, which will Cause secondary pollution, obvious disadvantages, now banned

[0010] 2. Direct landfill method. Although this method is simple to operate and easy to handle, the food waste has a high moisture content and organic components, and the landfill is far away from the city. Not only the cost of waste transportation is high, but also the phenomenon of dripping and leaking It is very serious, and there will be a disgusting smell along the way. When people see garbage trucks, they are disgusted and disgusted. Moreover, the landfill occupies a large area of ​​land. The filtrate will pollute the air, causing surface and groundwater pollution, does not meet the current environmental protection requirements, does not meet the development concept of recycling, and is likely to cause waste of available resources

[0011] 3. Energy treatment. This method mainly includes incineration, thermal decomposition, and hydrogen production by fermentation. Although this treatment method can realize energy recovery and utilization, the investment cost is high and the tail gas treatment is difficult.

[0013] Through the patent search, the applicant found that although there are many technologies surrounding the treatment of kitchen waste, it has not found an effective method that can separate grease, residual food and water from kitchen waste on the spot and comprehensively recycle them, let alone Processing equipment suitable for this processing method

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