Device and method for clean production of hot air by organic matters

Abstract

The invention belongs to the technical field of energy utilization and environmental protection, and relates to a device and method for clean production of hot air by organic matters. The device comprises a low-temperature gasification chamber, a super-adiabatic combustion dust removal chamber and a mixing reforming chamber, wherein the three chambers are half separated, and an air jacket and an insulating layer are sequentially arranged on the outer part of the device. The organic matters are sent into the low-temperature gasification chamber through a closed feed port to have a gasificationreaction by contacting with gasification air so as to generate a gasification gas and ash residues; the gasification gas is sent into the super-adiabatic combustion dust removal chamber and fully mixed with combustion air to generate a low-oxygen super-adiabatic combustion reaction, so that dust and tar contained in the gasification gas are removed in the process; the generated high-temperature clean flue gas is sent into the mixing reforming chamber and mixed with air for temperature regulation; and the flue gas with a specified temperature is sent into a subsequent unit. The device removes pollutants in the device, and adopts the air jacket to replace a heavy refractory material and a water jacket which are widely used at present, so that the generated flue gas and air with a specified temperature are completely recovered, and the energy utilization rate is high during clean production.

Description

technical field [0001] The invention belongs to the technical field of energy utilization and environmental protection, and in particular relates to a device and method for cleanly producing hot air from organic matter. Background technique [0002] There are many types of organic matter and the yield is huge. Burning it directly will produce a lot of SO x , NO x , fly ash and heavy metal pollution, and dioxins will be produced when organic waste is directly incinerated. The result is that the cost of tail gas treatment is extremely high. How to remove pollutants in the device is the key to solving this problem. [0003] The gasification of organic matter is one of the most promising methods for large-scale utilization of the energy contained in it. However, a large amount of tar will be produced during the gasification of most organic matter, and the tar entrained in the gas will be lost during the transportation to the subsequent process. Condensed into liquid, the cond...

AI Technical Summary

Problems solved by technology

[0004] At present, the thermal efficiency of most gasification combustion devices such as fluidized bed, fixed bed, and moving bed is lower than 80%. The air coefficient is high (between 1.3 and 2.0), and the problem is that the flue gas volume is too large. When the flue gas temperature is constant after heat exchange, the larger the flue gas volume, the greater the exhaust heat loss.

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