Sulfur trioxide leak controlling device for technology for preparing sulfuric acid through sulfur trioxide

Abstract

The invention relates to a sulfur trioxide leak controlling device for a technology for preparing sulfuric acid through sulfur trioxide. The problem that environment pollution is caused by sulfur trioxide is solved, the leaked sulfur trioxide is recovered for producing the sulfuric acid, and the waste is turned into wealth. The leak controlling device comprises sulfur trioxide storage tanks, an acid pump groove and a sulfuric acid drying tower, the sulfur trioxide storage tanks are arranged in a sulfur trioxide storage chamber, the acid pump groove is arranged in an acid pump groove chamber, the sulfur trioxide storage chamber and the acid pump groove chamber are both sealed chambers, the sulfur trioxide storage chamber and the acid pump groove chamber are connected to the sulfuric acid drying tower through a steel tube, axial flow fans and switch gate valves are arranged on the steel tube outside the sulfur trioxide storage chamber and the steel tube outside the acid pump groove chamber respectively, the axial flow fans are used for pumping the sulfur trioxide leaked from the sulfur trioxide storage chamber and the acid pump groove chamber to the sulfuric acid drying tower, startup and shutdown are controlled through the switch gate valves, and the leaked sulfur trioxide is sent to the sulfuric acid drying tower to be recovered for preparing the sulfuric acid.

Description

technical field [0001] The invention relates to the field of liquid sulfur trioxide leakage in the sulfuric acid preparation industry, in particular to a sulfur trioxide leakage control device. Background technique [0002] Liquid sulfur trioxide is a colorless oily liquid with a strong pungent odor, strong oxidizing and corrosive properties. It has a strong stimulating and corrosive effect on the skin, mucous membrane and other tissues, which can cause conjunctivitis, edema, corneal opacity, blindness, respiratory tract irritation, and severe breathing difficulties and pulmonary edema; high concentration can cause laryngospasm or glottic edema And die. Reacts explosively and violently with water and catches fire on contact with organic materials such as wood, cotton or grass. It is highly hygroscopic and produces toxic white fumes in the air. It is highly corrosive to most metals when wet. Due to the unique physical and chemical properties of sulfur trioxide, special at...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of environmental pollution caused by the leakage of sulfur trioxide in the process of preparing sulfuric acid from sulfur trioxide, we have sealed the areas easily polluted by sulfur trioxide (such as: sulfur trioxide storage tanks, acid pump tanks, etc.), and added shafts to the pipelines. Flow fan and switch gate valve

Images