High-temperature pyrolysis and oxygen-rich incineration treatment process and system for medical waste

Abstract

The invention provides a high-temperature pyrolysis and oxygen-rich incineration treatment process and system for medical waste. According to the process, the medical waste is crushed after being frozen, and then is screened; during screening, inorganic matter-like substances in the medical waste are separated, and are discharged after being sterilized; reversal combustion gasification and oxygen-rich incineration is performed on remaining organic matter; waste heat utilization is firstly performed on produced gasified gas, and low-pressure steam generated by waste heat utilization is used formedical institutions, and produced low-temperature flue gas is used for performing backflow regulation on the oxygen-rich concentration of reversal combustion gasification and oxygen-rich incineration; ash and slag disposal is performed on solid products of reversal combustion gasification and oxygen-rich incineration; and oxygen during reversal combustion gasification and oxygen-rich incineration is supplied by surplus oxygen in a liquid oxygen production link. The process system provided by the invention has the characteristic of distributed miniaturization, is quickly started and stopped,is ready to start and use, can stop at any time, and reasonably utilizes surplus cold energy in gasification of liquid oxygen of a hospital, reasonably utilizes energy, meets the oxygen demand for oxygen-rich incineration, and is a distributed comprehensive utilization system for waste of comprehensive medical institutions.

Description

technical field [0001] The invention relates to medical waste treatment, in particular to a high-temperature pyrolysis method for treating medical waste. Background technique [0002] In the operation of medical institutions, a large amount of medical waste will be generated, forming solid waste that may contain bacteria, viruses, and pollutants. Governments of all countries attach great importance to the classification, storage, transportation, and disposal management of medical waste. [0003] Medical waste mainly refers to the garbage and waste materials generated in the whole process of medical treatment, mainly composed of plastic, waste paper, kitchen waste, wood and bamboo, fiber, leather, rubber, surgical resection, glassware, etc. Most of these wastes are organic hydrocarbons, which can be completely burned into ashes under certain temperature and sufficient oxygen conditions. After medical waste is incinerated, it can not only completely kill bacteria and viruses,...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a high-temperature pyrolysis polyoxygen incineration treatment process and system for medical waste, which solves the problem that medical solid waste cannot be treated in situ, the economy is not high, and the storage time of medical waste exceeds the standard. For the problem of timely treatment, the process system of the present invention aims at the problems of large number of medical institutions, high concentration of centralized treatment, and omissions in the process of collection and storage and transportation. The distributed miniaturization design has the advantages of rapid start and stop, and can be used at any time. The simplicity of stopping at any time

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