Sulphur condensing and separating deice of sulphur recovering device

Abstract

The invention relates to a combined device for condensing and separating sulphur of a sulphur recovering device. The combined device is combined by a process gas condensing cooler and a liquid sulphur separator. The liquid sulphur separator is directly connected below the end socket of the process gas condensing cooler and forms an integral space together with the end socket. A steam heating facility is arranged outside the end socket of the process gas condensing cooler and the liquid sulphur separator. The liquid sulphur separator is internally provided with a filler layer section and a liquid sulphur collecting section. The filler layer is in a normal filler structure. A process gas outlet is provided with a liquid sulphur capturer and is connected with a next stage reaction or condensing cooling system. The liquid sulphur separator is provided with a liquid sulphur outlet valve which controls the liquid sulphur to flow out. The liquid sulphur outlet valve is connected to a liquid sulphur middle tank through a liquid sulphur outlet line. According to the combined device provided by the invention, the investment on devices is reduced and the environment and a human body are not damaged, the content of hydrogen sulfide entrained by liquid sulphur treated is low, and the content of sulphur dioxide in exhaust gas is low, so that the environmental pollution is reduced.

Description

technical field [0001] The invention belongs to the technical field of sulfur recovery, and in particular relates to a sulfur condensation and separation combination equipment and process suitable for a sulfur recovery device. Background technique [0002] In the existing sulfur recovery device, the liquid sulfur condensed by the process gas condensing cooler is directly sent from the condensing cooler to the sulfur sealing tank installed below the ground, and then the gravity of the liquid sulfur is used to flow into the normal pressure liquid sulfur pool. Due to the short residence time of liquid sulfur in the condensing cooler, the dissolved amount of hydrogen sulfide is greater than the equilibrium dissolved amount in the cooling state, and the amount of hydrogen sulfide separated during the subsequent liquid sulfur degassing is relatively large. The current conventional liquid sulfur degassing process , most of them use air bubbling and liquid sulfur throwing for degass...

AI Technical Summary

Problems solved by technology

Due to the short residence time of liquid sulfur in the condensing cooler, the dissolved amount of hydrogen sulfide is greater than the equilibrium dissolved amount in the cooling state, and the amount of hydrogen sulfide separated during the subsequent liquid sulfur degassing is relatively large. The current conventional liquid sulfur degassing process , most of them use air bubbling and liquid sulfur throwing for degassing, and the released gas is pumped to the incinerator together with nitrogen blanketing gas to form sulfur dioxide, which pollutes the atmosphere. The contribution of this part of pollutants to the sulfur dioxide emitted by the atmosphere is 100-300mg / m 3 , at the same time, because the liquid sulfur pool is operated under normal pressure, the hydrogen sulfide released from it will cause harm to the surrounding environment and related operators; while the sulfur sealing tank is set in the sulfur sealing tank pool below the ground, and the liquid sulfur pool is all located below the ground, so There is a risk of soil contamination from liquid sulfur

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