Hydrogen fluoride gas absorption experimental device

Abstract

The invention discloses a hydrogen fluoride-containing mixed gas absorption experimental device. The hydrogen fluoride-containing mixed gas absorption experimental device comprises an air source, a hydrogen fluoride gas source, a mixer and a gas absorption system, wherein the air source and the hydrogen fluoride gas source are connected to the mixer through pipelines, the mixer is connected with the gas absorption system through a pipeline and used for proportionally mixing air coming from the air source and hydrogen fluoride gas coming from the hydrogen fluoride gas source, the mixed gas is absorbed by a calcium sulfate solution or a sodium hydroxide solution inside the gas absorption system by spraying after entering the gas absorption system, an induced draft fan connected with an external environment is used for emptying the gas absorption system, and the gas absorption system is a primary absorption tower and / or a secondary absorption tower connected with the primary absorption tower in series. The hydrogen fluoride-containing mixed gas absorption experimental device disclosed by the invention can be used for absorbing the hydrogen fluoride mixed gas in different content ranges so as to provide a theory basis for future industrial hydrogen fluoride gas absorption devices.

Description

technical field [0001] The invention relates to an experimental device for absorbing hydrogen fluoride gas, which belongs to the field of experimental chemistry. Background technique [0002] Hydrogen fluoride (chemical formula: HF) is an extremely strong corrosive agent and highly toxic. In terms of physical and chemical properties, hydrogen fluoride is a colorless gas. If the content in the air exceeds 3ppm, it will produce a pungent taste. Because hydrofluoric acid can be absorbed through the skin, mucous membranes, respiratory tract and gastrointestinal tract, it will cause great harm to human health. [0003] In the production of chemical industry, many industrial tail gases contain hydrogen fluoride gas components. A large amount of waste gas containing hydrogen fluoride gas is discharged into the air through equipment, which not only causes environmental pollution but also brings great hidden dangers to the health of workers. Therefore, the tail gas Purification to m...

AI Technical Summary

Problems solved by technology

[0004] At present, factories usually use single-cycle water washing tanks for absorption, but this absorption treatment method cannot completely eliminate hydrogen fluoride in waste gas, and the water consumption is large, which increases the production cost of the enterprise. Using calcium sulfate solution to absorb hydrogen fluoride gas can produce The by-product calcium fluoride not only purifies the industrial exhaust, but also creates profits, achieving the effect of killing two birds with one stone

Images