Low dioxin emission system and method for high-temperature carbonization pyrolysis and high-temperature gasification incineration of medical waste

Abstract

The invention relates to a low dioxin emission system and method for high-temperature carbonization pyrolysis and high-temperature gasification incineration of medical waste. The system comprises a dry distillation bar making system and a high-temperature gasification purifying system. The dry distillation bar making system comprises a storage warehouse, a carbonization furnace, a bar making machine, a warehouse, a purifying device, a waste heat boiler and a combustion chamber. Solid waste is brought out of the storage warehouse and then thrown into the carbonization furnace, and after carbonization, solids and oil tar are removed out and conveyed to the bar making machine to serve as raw materials. The carbonization furnace is connected with the combustion chamber and the purifying device. The purifying device is connected with the waste heat boiler. The high-temperature gasification purifying system comprises a draught fan, a gasification furnace, a waste heat boiler, a quenching tower, a dioxin removing tower, a cyclone mixing adsorption device, dust collecting bags, an induced draught fan and the like, wherein the draught fan, the gasification furnace, the waste heat boiler, the quenching tower, the dioxin removing tower, the cyclone mixing adsorption device, the dust collecting bags, the induced draught fan and a chimney are sequentially connected. By means of the system and method, emission of dangerous waste and medical waste can be effectively controlled, and harmlessness, reduction and reclamation are achieved.

Description

technical field [0001] The invention relates to the field of hazardous waste and medical waste treatment, in particular to a low-dioxin emission system and method for high-temperature carbonization, pyrolysis, high-temperature gasification and incineration of medical waste. Background technique [0002] Hazardous waste has a great negative impact on society and the environment, mainly as follows: (1) Destruction of the ecological environment. Hazardous waste discharged and stored at will will pollute water and soil under the long-term infiltration and diffusion of rainwater and groundwater, and reduce the environmental function level of the area; (2) affect human health. Hazardous wastes cause poisoning through ingestion, inhalation, skin absorption, eye contact, or cause events such as combustion and explosion; long-term hazards include poisoning, carcinogenicity, and teratogenicity caused by repeated exposure; (3) Restrict sustainable development. The air, water, and soil...

AI Technical Summary

Problems solved by technology

Hazardous waste discharged and stored at will will pollute water and soil under the long-term infiltration and diffusion of rainwater and groundwater, and reduce the environmental function level of the area; (2) affect human health

Hazardous wastes cause poisoning through ingestion, inhalation, skin absorption, eye contact, or cause combustion, explosion and other events; long-term hazards include poisoning, carcinogenicity, teratogenicity, etc. caused by repeated exposure; (3) restrict sustainable development

The air, water, and soil pollution caused by non-treatment or non-standard disposal of hazardous waste will also become a bottleneck restricting economic activities; (4) direct incineration of hazardous waste and medical waste will produce a large amount of carcinogenic dioxins and various To remove these substances and avoid the production of dioxins, the cost of the purification system and dioxin control system is also very high, so hazardous waste must be disposed of strictly and carefully to eliminate Negative impact

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