Corrosive solution filling system

Abstract

The invention relates to a corrosive solution filling system which comprises a liquid inlet pipeline, a liquid distribution tank, a liquid distribution pipeline, a cleaning liquid discharge pipe and a filling valve; one end of the liquid inlet pipeline is communicated with the upper end of the liquid distribution tank; a filter, a manual valve and an electric diagram are sequentially arranged from the upstream end of the liquid inlet pipeline to the connecting end of the liquid distribution tank; the upper end of the cleaning liquid discharge pipe is communicated with the lowest point at the bottom of the liquid distribution tank, and a valve is arranged at the lower end of the cleaning liquid discharge pipe; and the upper end of the liquid distribution pipeline is communicated with the bottom of the liquid distribution tank, and the lower end of the liquid distribution pipeline is connected with a filling device. According to the invention, all parts of components, in contact with material, are made from homopolymerized polypropylene or polytetrafluoroethylene, and the texture can resist corrosion of liquids with strong acid with pH value approaching 0 and strong base with pH value approaching 14. The corrosive solution filling system has the advantages of being simple in structure, convenient to operate, low in cost and the like, and is applicable to automatic filling machines under the liquid level of small and medium packaging barrels in the field of chemical engineering.

Description

technical field [0001] The invention relates to the technical field of chemical product liquid filling, in particular to a corrosive solution filling system. Background technique [0002] In terms of chemical filling in the chemical industry at home and abroad, in the early days, only the liquid surface of the oil gun was filled manually; because the chemicals are volatile and corrosive, they will cause harm to the human body. Some economically powerful chemical companies gradually use automatic filling machines to keep workers away from the hazards of chemicals, and began to purchase imported filling machines, but the cost is very high and maintenance is inconvenient. [0003] In recent years, there have been automatic filling machines for small packages below 5L, such as acid-base solutions, disinfectants, pesticides, detergents, etc., but the main structure of the filling system is made of steel or high-quality stainless steel with surface sprayed with anti-corrosion mate...

AI Technical Summary

Problems solved by technology

If the sprayed anti-corrosion material is damaged and falls off, the steel will be corroded; the corrosion resistance of high-quality stainless steel is also limited, and it will also be corroded if it is exposed to highly corrosive solutions for a long time. After the metal material is corroded, there is a risk of material contamination.

As for the medium drum packaging of about 20L, there is no mature automatic filling equipment on the market.

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