Filter type sulfur melting kettle

Abstract

The invention relates to a filter type sulfur melting kettle. The filter type sulfur melting kettle comprises a clear liquid section, a filter section and a sulfur melting section, all of which are orderly arranged from top to bottom, wherein a revolving filter screen is arranged in the filter section and driven by a driving device arranged at the top of the kettle; the clear liquid section is provided with a clear liquid outlet, while the filter section is provided with a sulfur foam inlet and the sulfur melting section is provided with a sulfur outlet. The revolving filter screen is a cage type filter screen and capable of rotating around an axis; a fixed scraper plate is arranged on the kettle body outside the revolving filter screen. Compared with the prior art, the filter type sulfur melting kettle has the following beneficial effects: 1) the revolving filter screen is capable of separating the clear liquid and the elemental sulfur in sulfur foam from each other, the sulfur is scraped into the sulfur melting section by use of the scraper plate, and the sulfur product is good in quality and high in recovery rate; 2) slag is not easy to accumulate on the wall of the kettle, the kettle body of the three-section design is easy to clear and convenient to repair and replace, and the equipment utilization rate is high; 3) the sulfur content in the clear liquid is low, and a pipeline is not prone to block, and the clear liquid can be directly returned to the system for utilization; 4) the equipment controllability is high, the production process is stable, the energy consumption is low and the production cost can be reduced.

Description

Technical field [0001] The invention relates to a device used for sulfur recovery of sulfur foam produced by wet desulfurization of sulfur-containing gas in chemical fertilizer plants and coking plants, in particular to a filter type sulfur melting kettle. Background technique [0002] The sulfur foam produced by wet desulfurization of sulfur-containing gas in chemical fertilizer plants and coking plants is usually collected and stored in a sulfur foam tank. The sulfur melting kettle is the equipment used to treat these sulfur foams. In sulfur foam, sulfur is attached to the foam as tiny particles of elemental sulfur. When the sulfur melting kettle is in operation, compressed air or alkali-resistant pumps are used to transport the sulfur foam into the sulfur melting kettle. The sulfur melting kettle is a jacketed vessel. Steam is passed through the jacket to heat the sulfur foam. When heated to 70-90℃ When the bubble bursts, the elemental sulfur of the tiny particles quickly acc...

AI Technical Summary

Problems solved by technology

[0003] In actual use, it is found that there are some problems when using the traditional sulfur melting kettle to separate the clear liquid from the elemental sulfur, such as 1) it is difficult to clean the slag accumulated on the wall of the kettle

Because the wall of the sulfur melting kettle is easy to accumulate slag, it not only reduces the effective volume of the sulfur melting kettle and directly affects the heat transfer rate, but also it is extremely difficult to remove the sulfur slag attached to the kettle wall, and it is difficult to improve the utilization rate of the equipment; 2) Production The process is unstable and the efficiency of sulfur melting is not high; 3) The quality of the clear liquid is poor, and the grade of sulfur is low. Because the clear liquid contains unmelted sulfur residue, it is easy to cause blockage of pipelines and tower equipment; in addition, due to the black appearance of sulfur products , low sulfur content, affecting market sales; 4) high energy consumption, high production costs

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