Environment-friendly resource utilization process and system for waste oil drum as hazardous waste

Abstract

The invention discloses an environment-friendly resource utilization process and system for a waste oil drum as hazardous waste. The provided process sequentially comprises the steps as follows: impurity removal, rust and paint removal, crushing, first-stage cleaning, second-stage cleaning, drip washing, drying, packaging and steel-making. According to the system with the application of the process, a manual impurity removing station, a rust and paint removing machine, a shredding machine and a first-stage ultrasonic drum cleaning machine are connected through belts; the first-stage ultrasonicdrum cleaning machine, a second-stage ultrasonic drum cleaning machine, a drip washing machine and a drier are driven by screws; and the drier, a packaging machine and a steel-making furnace are connected through belts. The provided process and system are low in energy consumption, resource-saving and environmentally friendly, and can simultaneously achieve the dual purposes of the elimination ofhazardous waste characteristics of the waste oil drum and the resource utilization.

Description

technical field [0001] The invention belongs to the technical field of hazardous waste treatment, and in particular relates to an environmental protection resource utilization process and system of waste oil barrels of hazardous waste. Background technique [0002] With the rapid development of my country's industrialization, the amount of waste oil barrels is increasing day by day. According to the "National List of Hazardous Wastes" (2016 edition), waste oil barrels are hazardous wastes, with a waste category of HW49 and a code of 900-041-49, belonging to discarded containers contaminated with toxic and flammable hazardous waste. Without proper harmless disposal and utilization, the hazardous waste contaminated on the surface will enter the water, air and soil, causing serious environmental pollution and endangering human health. [0003] At present, the disposal and utilization technologies for waste oil drums include two categories: cleaning disposal and incineration py...

AI Technical Summary

Problems solved by technology

Cleaning and disposal technologies mostly use water or organic solvents as cleaning agents. There is no quality control device in the cleaning process, and there is a lack of necessary pollution prevention and control facilities. There is no guarantee that its hazardous characteristics can be completely eliminated. The production process is not environmentally friendly, and the resource utilization of hazardous waste has not been realized.

The incineration pyrolysis disposal technology needs to build a high-temperature pyrolysis vaporization furnace and waste gas treatment facilities separately. The initial investment is large, the daily operation energy consumption is high, and the waste oil barrels are directly put into the furnace without harmless treatment, and the hazardous waste contaminated on the surface is in production. During the process, it is very easy to enter the environment and cause environmental pollution incidents, and the paint, grease and other impurities on the surface of waste oil barrels will produce strong carcinogenic organic waste gas such as dioxin during the pyrolysis process, and the environmental risk is high.

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