Slurry cooling device for slurry internal circulation type desulfurizing tower

Abstract

The invention discloses a slurry cooling device for a slurry internal circulation type desulfurizing tower. The slurry cooling device for the slurry internal circulation type desulfurizing tower is characterized in that the slurry cooling device comprises a sleeve, two sealing plates and a plurality of heat exchange pipes, wherein the two sealing plates are connected to the upper end opening and the lower end opening of the sleeve respectively, and the heat exchange pipes are connected between the two sealing plates. A sealed cavity is formed between the sleeve and the two sealing plates. The two end openings of each heat exchange pipe are communicated with the space outside the sealed cavity. A water outlet and a water inlet are formed in the upper side wall and the lower side wall of the sleeve respectively. Compared with the prior art, the slurry cooling device for the slurry internal circulation type desulfurizing tower has the advantages that the temperature of sprayed slurry is decreased, and safety operation of components in the desulfurizing tower and a slurry circulating pump is guaranteed.

Description

Technical field: [0001] The invention relates to an environment-friendly sulfur removal technology. Background technique: [0002] At present, the temperature in the oxidation slurry tank of the internal circulation desulfurization tower is relatively high, which can actually reach 70-80°C. The saturated vapor pressure of the slurry increases with the increase of the liquid temperature, so that the gas in the slurry is continuously vaporized. The slurry containing a large number of air bubbles will cause cavitation after being sucked by the circulating pump, which will seriously damage the impeller of the circulating pump and the components of the mechanical seal; in addition, because the slurry is circulated and sprayed, it will be in gas-liquid contact with the imported high-temperature flue gas. When the slurry temperature is high, the flue gas cannot be cooled, resulting in high-temperature flue gas damage to the anti-corrosion scales in the desulfurization tower, FRP e...

AI Technical Summary

Problems solved by technology

When the slurry temperature is high, the flue gas cannot be cooled, resulting in high-temperature flue gas damage to the anti-corrosion scales in the desulfurization tower, FRP equipment such as demisters, etc., which can easily cause serious consequences such as the loss of anti-corrosion scales and the collapse of the demister.

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