Primary air oxygen-injection mixing integrated device used for oxygen-enriched combustion of waste

Abstract

The invention discloses a primary air oxygen-injection mixing integrated device used for oxygen-enriched combustion of waste. The primary air oxygen-injection mixing integrated device comprises a tubular body, an oxygen injector and flow mixing sheet sets, two ends of the tubular body can be connected with a primary air pipeline respectively, the oxygen injector comprises an annular oxygen injection ring and multiple nozzles, the oxygen injection ring is arranged in a pipe body of the tubular body, the nozzles are uniformly arranged on the oxygen injection ring, oxygen enters the oxygen injection ring from the outside and is injected into the pipe body of the tubular body through the nozzles, and each flow mixing sheet set coaxially sleeves the inner pipe wall of the tubular body, is positioned on the lower reach of the oxygen injector and comprises a first flow mixing sheet and a second flow mixing sheet which are parallelly arranged in an axially spaced manner. The primary air oxygen-injection mixing integrated device can inject the oxygen in directions parallel to and perpendicular to the direction of air flow; the sheets of special-shaped structure are adopted inside to for mixing of a mixer, so that quick injection and uniform mixing of the oxygen can be realized, and safe and efficient combustion can be realized.

Description

technical field [0001] The invention belongs to the technical field of oxygen-enriched incineration, and in particular relates to an integrated device for injecting pure oxygen into a primary air duct and fully mixing it with air, and is especially suitable for an oxygen-enriched incineration system for garbage. Background technique [0002] Due to the remarkable characteristics of high moisture, high ash content, low calorific value, and complex composition of domestic waste in China, my country's waste incineration faces major problems such as incineration instability and complex pollutants, and such problems are more serious in high-altitude areas. Oxygen-enriched incineration technology is a new type of clean and efficient incineration technology emerging in recent years, which has the significant advantages of high incineration efficiency and low pollutant emissions. Applying oxygen-enriched incineration technology to the waste incineration industry will effectively ove...

AI Technical Summary

Problems solved by technology

The oxygen injection structure in the above scheme has higher requirements on the pressure of the injected oxygen, and must have a higher oxygen pressure head, and its mixing direction is single, and the structure of the nozzle is simple, which cannot guarantee rapid and uniform mixing.

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