Rotational flow flash evaporation self-heating gradient utilization device for preparing solid fuel from kitchen waste

Abstract

The invention provides a rotational flow flash evaporation self-heating gradient utilization device for preparing solid fuel from kitchen waste, and belongs to the technical field of waste recycling.The device comprises a heating extrusion treatment part, a combustion chamber part, a high-speed crushing and rotational flow flash evaporation part, a condensation and tail gas treatment part and a gas-solid separation and solid fuel collection part, kitchen waste is put into a spiral propeller through the feeding port. After being extruded by a variable pitch and heated downwards, the materialsare pushed into the smashing device through a hand rocker and smashed through a high-speed rotating blade, the materials which are small enough enter the rotational flow drying chamber in the tangential direction of smoke to be dried and subjected to gas-solid separation, solid products can be used as fuel to supply drying heat, negative-pressure low-temperature flash evaporation is achieved in the device, and tail gas is exhausted after being condensed and adsorbed. According to the device, self-heating on-site rapid drying can be achieved, a downward ignition type combustion chamber is designed to achieve gradient utilization of flue gas heat, energy consumption is low, meanwhile, low-temperature combustion reduces the pollutant generation amount, a tail gas treatment system is arrangedto achieve up-to-standard emission, and secondary pollution is avoided.

Description

technical field [0001] The invention relates to the technical field of waste recycling, in particular to a device for making solid fuel from kitchen waste by swirl flash steam self-heating cascade utilization. Background technique [0002] In 2016, the national food waste generation was about 97 million tons, with an average annual growth rate of more than 10%. In recent years, garbage sorting policies have prevailed. Due to the large output, high water content and large space occupation of kitchen waste, the transportation cost is high and the terminal treatment load is too high. [0003] At present, traditional food waste treatment methods are mostly used in medium and large canteens. The garbage room needs to be equipped with refrigerators and room temperature storage space. The canteen staff has been packing boxes and packing them in a centralized manner, and then transported them to the centralized waste treatment site. Although many food waste treatment devices have a...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a solid fuel device made of food waste by self-heating cascade of swirl flash, which solves the problem of insufficient processing capacity, low efficiency and high energy consumption of some existing food waste treatment devices Or high transportation costs, long processing time, overwhelmed waste disposal stations, etc.

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