Nitrogen/chlorine (argon/chlorine) mixing and proportioning system and operation method thereof

Abstract

The invention relates to a nitrogen / chlorine (argon / chlorine) mixing and proportioning system and an operation method thereof, aiming to overcome the defect that the manual nitrogen / chlorine (argon / chlorine) mixing and proportioning process in the prior art is completed by manual operation rather than automatic operation and is low in proportioning precision and high in operation risk. The nitrogen / chlorine (argon / chlorine) mixing and proportioning system comprises nitrogen (argon) gas running equipment, chlorine gas running equipment, a nitrogen and chlorine (argon and chlorine) mixer, a mixed gas storage tank and a PLC (programmable logic controller) control cabinet, wherein tail ends of the nitrogen (argon) gas running equipment and the chlorine gas running equipment are connected with the nitrogen and chlorine (argon and chlorine) mixer together, the nitrogen and chlorine (argon and chlorine) mixer is further connected with the mixed gas storage tank for a feeding point, a pressure sensor is arranged on the mixed gas storage tank, the PLC control cabinet is connected with all the equipment, and intelligent management and operation is realized by an internal control and management system. The nitrogen / chlorine (argon / chlorine) mixing and proportioning system and the operation method thereof have the advantages that automatic proportioning operation can be realized, operators can keep away from dangerous sources, the proportioning precision is increased, the service life of the equipment is prolonged, the service pressure of the system is stabilized, and leakage caused by long-term overhigh pressure load for the end equipment is avoided.

Description

technical field [0001] The invention relates to the technical field of online degassing during aluminum processing and casting, in particular to a nitrogen / chlorine (argon / chlorine) mixing ratio system and an operating method thereof. Background technique [0002] Chlorine has a good impurity removal effect in the aluminum processing and casting process, and is an indispensable link in the production of high-quality basic aluminum materials. The existing nitrogen / chlorine (argon / chlorine) mixing ratio requires on-site manual operation and cannot realize automatic rationing operation, the rationing accuracy is low, and the operation risk is high. When the terminal equipment stops, the system pressure cannot maintain the rated pressure, so that the long-term overpressure load of the terminal equipment affects the service life. Since chlorine gas is a highly toxic and highly corrosive gas, it is easy for operators to work in a chlorine-related environment for a long time to ca...

AI Technical Summary

Problems solved by technology

The existing nitrogen / chlorine (argon / chlorine) mixing ratio requires on-site manual operation and cannot realize automatic rationing operation, the rationing accuracy is low, and the operation risk is high

When the terminal equipment stops, the system pressure cannot maintain the rated pressure, so that the long-term overpressure load of the terminal equipment affects the service life

Since chlorine gas is a highly toxic and highly corrosive gas, it is easy for operators to work in a chlorine-related environment for a long time to cause safety production accidents, and the back-end gas equipment is prone to leakage during long-term overpressure load use, causing personal injury

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