Organic solid waste pyrolysis and gasification system and method

Abstract

The invention provides an organic solid waste pyrolysis and gasification system and method. The system comprises a feeding hopper, a shaftless screw feeder, a rotary gasification kiln, a combustion chamber, a high-temperature air preheater, a slag cooler, a high-temperature dust removal net, a pyrolysis gas fan, an ignition combustion-supporting oil pump, a combustion-supporting fan, a purification system and a gas storage tank. The feeding hopper, the shaftless screw feeder, the rotary gasification kiln and the combustion chamber are connected in sequence; the high-temperature air preheater and the slag cooler are connected at the bottom of the combustion chamber; the high-temperature dust removal net is arranged at the inlet end of the rotary gasification kiln, the rotary gasification kiln is connected with the pyrolysis gas fan, one path of an outlet of the pyrolysis gas fan is connected with the pyrolysis gas connector, and the other path of the outlet of the pyrolysis gas fan is sequentially connected with the purification system and the gas storage tank; and the combustion-supporting fan and the ignition combustion-supporting oil pump are respectively connected with the combustion chamber. Compared with the prior art, the rotary gasification kiln and the high-temperature dust removal net are integrally combined, and the investment cost of the pyrolysis gas purification system can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of organic solid waste treatment, in particular to an organic solid waste pyrolysis gasification system and method. Background technique [0002] At present, the annual output of organic solid waste from living sources, agricultural sources, and industrial sources in my country exceeds 6 billion tons, accounting for more than 60% of the total solid waste generated. Due to the relatively complex composition of organic solid waste in my country, including agricultural straw, sludge, kitchen waste, kitchen waste, residues of traditional Chinese medicine, waste tires, etc., there are not only resources such as carbon, nitrogen, phosphorus, but also polluting elements such as heavy metals. properties and pollution properties, but a scientific and rational management and safe disposal technology system has not yet been formed. [0003] In terms of urban waste, the amount of waste has increased sharply, the utiliza...

AI Technical Summary

Problems solved by technology

Rotary kiln gasification technology has disadvantages such as high pyrolysis gas dust content, high slag thermal loss rate, high tar content, etc.

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