Environment-friendly energy-saving equipment for waste gas burning and residual heat utilization

Abstract

The invention discloses an exhaust gas combustion and waste heat recycling environmental protection and energy saving equipment, comprising a hot air circulation system, an environmental protection disposal system, a waste heat recycling system and an emission system. The hot air circulation system comprises a solidifying furnace and a heating chamber of the solidifying furnace. A painted work piece to be solidified is arranged in the solidifying furnace, and a first combustion machine is arranged in the solidifying furnace heating chamber and is used for heating the exhaust gas generated by work piece solidification process and the supplementary air. The solidifying furnace and the solidifying furnace heating chamber are mutually communicated to form a channel of circulating air. The environmental protection disposal system comprises a high temperature decomposing furnace communicated with the channel of circulating air. The waste heat recycling system is communicated with the environmental protection disposal system and the first combustion machine and also connected with the emission system. The poisonous exhaust gas generated by the solidifying process of the work piece in the solidifying furnace is oxidated and decomposed into qualified exhaust gas in the high temperature decomposing furnace, and the exhaust gas is recycled by a waste heat recycling device when being exhausted to the outside. Additionally, the waste heat of the exhaust gas generated by the heating of the first combustion machine is also used by the waste heat recycling device, so as to realize waste heat recycling and environmental protection emission.

Description

technical field [0001] The invention relates to an environment-friendly and energy-saving equipment, in particular to an environment-friendly and energy-saving equipment capable of fully incinerating waste gas produced in the spraying process and utilizing the waste heat generated by the incineration for waste gas incineration and waste heat utilization. Background technique [0002] As the frontier cities in my country's economically developed regions, southern and coastal cities in China have a considerable number of industries, such as furniture, machinery and equipment, and automobile manufacturing. Paint is used to varying degrees in the production process, most of which are solvent-based paints. . Solvent-based paints are widely used in related industries due to their mature technology, relatively low cost, and good performance. [0003] However, the paint contains a large amount of organic solvents, and the organic solvents contain a large amount of volatile organic c...

AI Technical Summary

Problems solved by technology

Usually, the exhaust gas incinerator uses diesel oil, heavy oil or natural gas as fuel, and the exhaust gas sent to the incinerator burns in the flame of the above fuel to oxidize and decompose it. However, the higher the temperature of the incinerator furnace, the more fuel is consumed. In order to save fuel, some manufacturers adopt low-temperature combustion methods, that is, the incineration temperature is lower than 760°C (such as 700°C, or even below 600°C), so that organic solvents or other harmful components (such as phenol, formaldehyde, etc.) cannot be completely oxidized and decomposed. The above-mentioned harmful components can be detected on the exhaust chimney of the incinerator, which exceeds the national standard, and the smell of the above-mentioned organic substances can be smelled within a few hundred meters from the incinerator

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