Sulfur spray gun anti-stream leakage method in device for producing acid by sulfur

Abstract

The invention discloses a sulfur spray gun anti-stream leakage method in device for producing acid by sulfur. Equipment is modified so that refractory steel is adopted as sulfur spray gun material, a heat insulation steam mouth piece is lengthened, a sulfur spray gun heat insulation sleeve heat insulation steam inlet and outlet valve is interlocked with a sulfur spray gun atomized liquid sulfur spray valve; simultaneously, when the sulfur gun works, the sulfur spray gun heat insulation sleeve heat insulation steam ensures not to enter, the possibility of steam leakage is zero, thus avoiding the serious consequences such as serious pulverization of converted catalyst, generation of condensed acid by an economizer and overproof discharge of acid mist in tail gas After the equipment is modified, due to good working performance of the equipment, the problem of steam leakage basically does not happen during working time between overhauls, thus avoiding the long term stoppage loss of the devices which cause the above serious consequences due to leakage, seriously maintaining the devices in overhaul stoppage, and basically precluding the devices from breaking down. The invention has goodeconomic and social benefits.

Description

Sulfur lance anti-leakage method in sulfuric acid production technical field The invention belongs to the technical field of sulfuric acid production by using sulfur, and in particular relates to a method for preventing steam leakage of a sulfur spray gun in a sulfuric acid plant. Background technique The nature of elemental sulfur, physical properties Sulfur is a light yellow crystal, commonly known as sulfur. Hardly soluble in water, slightly soluble in alcohol, easily soluble in CS2, with a melting point of 114°C and a boiling point of 444.6°C. One of the chemical properties, sulfur is easy to chemically react with oxygen to form sulfur dioxide, and release a lot of heat at the same time. In the production process of sulfuric acid, firstly, sulfur is heated and melted at low temperature (above 114°C) to become liquid, and then liquid sulfur is incinerated to produce SO2. The production of SO2 is carried out in the sulfur incinerator, and the liquid sulfur is atomized ...

AI Technical Summary

Problems solved by technology

The inventor solved the problems of steam leakage and high-temperature burnout of the sulfur lance through research and experiments