An oxygen-enriched side blowing treatment process for inorganic hazardous waste

Abstract

The invention discloses a process for treating inorganic hazardous waste with oxygen-enriched side blowing, which belongs to the technical field of inorganic hazardous waste treatment. Then, the preheated charge melts in the tuyere area and undergoes a metallurgical reaction to generate alloy and slag; finally, the generated alloy and slag flow into the bed area together, and interact with each other in the bed area; The oxygen-enriched side-blowing furnace used in the invention is advanced in technology, and the production equipment has a high level of automation and informatization. Oxygen-enriched energy-saving and environmental protection measures are adopted, with low energy consumption and good energy-saving benefits. The low metal content in the slag improves the level of comprehensive utilization of resources; effective pollution prevention and control measures are adopted, resulting in a high level of clean production.

Description

technical field [0001] The invention relates to the technical field of inorganic hazardous waste treatment, in particular to an oxygen-enriched side-blowing treatment process for inorganic hazardous waste. The oxygen-enriched side-blown furnace is used to carry out oxidation-reduction reaction of inorganic hazardous waste, extract metals, and obtain alloy ingots. The types of hazardous waste to be disposed of include photosensitive material waste (HW16), surface treatment waste (HW17), incineration disposal residue (HW18), copper-containing waste (HW22), zinc-containing waste (HW23), nickel-containing waste (HW46), non-ferrous metal Smelting waste (HW48), other waste (HW49), spent catalyst (HW50), etc. Background technique [0002] Inorganic hazardous waste raw materials are hazardous waste containing copper, nickel, tin, zinc and other metals, mainly from petrochemical, surface treatment, electroplating, electronics and environmental protection industries. These materials h...

AI Technical Summary

Problems solved by technology

Incineration, wet method and landfill are the main methods of disposal of inorganic hazardous waste raw materials. Currently, there is no enterprise specialized in comprehensive disposal of inorganic hazardous waste

In particular, enterprises in the park can only dispose of solid waste through self-built environmental protection facilities or entrust other qualified environmental protection enterprises outside the city. restrict

[0003] The traditional inorganic hazardous waste treatment equipment is mainly a blast furnace. In the field of hazardous waste pyrolysis, the composition of hazardous waste materials is extremely complex, and most of them contain relatively high refractory gangue components or low gasification temperature components. A single material cannot be stored on a large scale ; The technological characteristics of the blast furnace determine that the blast furnace is not suitable for processing refractory gangue components or materials with high components at low gasification temperatures, and it needs to consume more metallurgical coke with good quality and high price; the technical requirements are relatively high, especially the content of sintered The sulfur content should be less than 1%, which makes the control of the sintering process of the concentrate complicated; the furnace and the condenser will inevitably produce fast furnace deposits, which need to be cleaned regularly, with high labor intensity and low equipment operation rate; environmental protection discharge pressure is high