Resin sand casting site harmful flue gas purification method using materials capable of performing online regeneration and absorption

Abstract

The invention relates to a resin sand casting site harmful flue gas purification method using materials capable of performing online regeneration and absorption. The method comprises: 1, constructing a resin sand casting site harmful flue gas purification treatment system using materials capable of performing online regeneration and absorption; 2, arranging a set of powder spraying equipment on the hard wind pipe of the resin sand casting site harmful flue gas purification treatment system; 3, mixing the captured harmful flue gas into a powder material through the system; 4, cooling the harmful flue gas; and 5, carrying out absorption / online regeneration. According to the present invention, the captured harmful flue gas is subjected to powder spraying and filtration treatment, the organic matters in the harmful flue gas are adsorbed with the adsorbent, the adsorption device is regularly and onlinely regenerated, and the organic matters collected by the adsorbent are recovered by the condensing recovery device, such that the operation reliability and the operation stability of the harmful flue gas purification treatment system are effectively ensured, and the occupational hazards and the environmental pollution caused by the harmful flue gas in the resin sand casting and cooling production process are eliminated or reduced.

Description

technical field [0001] The invention relates to the fields of post sanitation and environmental protection, and more specifically relates to a method for purifying harmful flue gas at the site of resin sand casting that can regenerate adsorption materials on-line. Background technique [0002] With the development of casting technology, no-hardening furan resin and phenolic resin sand molding have been widely used in my country's foundry industry, which not only shortens the production cycle, improves production efficiency, but also improves the appearance quality of castings. However, when the resin sand mold is pouring and cooling, it will emit very thick smoke. Due to the baking of high-temperature molten aluminum, molten iron and molten steel, the components of the smoke include not only smoke and CO, but also decomposed organic substances and viscosity. Larger resinous oily volatiles, these resinous oily volatiles mixed with smoke and dust will produce highly viscous an...

AI Technical Summary

Problems solved by technology

However, due to the low concentration of organic matter in the organic waste gas of the foundry industry and the low gas production, it is difficult to directly copy and use the organic waste gas treatment methods of the above-mentioned industries.

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