Nitrite removing additive production line and preparation method thereof

Abstract

The invention discloses a nitrite removing additive production line, and belongs to the field of chemistry. The production line sequentially comprises a cleaning device, a drying device, a crushing device, an extracting device, a complexing reaction kettle and a precipitating-filtering device from front to back; the complexing reaction kettle comprises a reaction kettle shell, a reaction kettle stirring assembly and an ultrasonic generator; wherein the whole reaction kettle shell is similar to a cylinder; the upper surface and the lower surface of the reaction kettle shell are convex arc-shaped surfaces, a reaction kettle feeding hole is formed in the top surface, a reaction kettle discharging hole is formed in the middle of the bottom surface, the reaction kettle stirring assembly is arranged on the top surface of the reaction kettle shell and is coaxial with the central shaft of the reaction kettle shell, and the ultrasonic generator is arranged on the circumferential side surface ofthe reaction kettle shell. The production line has the beneficial effects that ultrasonic waves are used to heat and mix a solution in the complexing reaction kettle, so that the movement activity ofprocyanidine and aluminum ions in a solvent is effectively improved, the contact opportunity of grape seed procyanidine and aluminum ions is increased, and the reaction efficiency and the complex stability are improved.

Description

technical field [0001] The invention relates to the field of chemistry, in particular to a nitrite scavenging additive production line and a preparation method thereof. Background technique [0002] Grapes are deciduous vines belonging to the genus Vitis, and are one of the most commonly cultivated fruits in the world. They are treasures in fruits and are known as the "Queen of Fruits". Grape is an important fruit tree in my country. With the reform and opening up and the adjustment of rural industrial structure, the viticulture industry in my country has developed accordingly. Especially in the past ten years, the cultivated area and output of grape have been on the rise. In 2005, the cultivated area of ​​grapes in my country was 408,100 hm 2 , ranking No. 4 in the world, with an output of 5.794 million tons, ranking No. 5 in the world. [0003] Proanthocyanidins are a large class of flavonoid polyphenolic compounds that are ubiquitous in woody and herbaceous plants. In ...

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Problems solved by technology

[0005] Aiming at the problems of low extraction efficiency of grape seed proanthocyanidins in the prior art, large amount of solvent consumption, long extraction time, low extraction rate and low application value, the present invention provides a nitrite scavenging additive production line, from before to After that, it includes cleaning device, drying device, pulverizing device, extraction device, complexation reactor and precipitation filtration device, and the complexation reactor includes a reactor shell, a reactor stirring assembly and an ultrasonic generator, and the reactor shell The whole body is like a cylinder, and the upper and lower sides are convex arc-shaped surfaces. The top surface forms a reactor feed port, and the middle of the bottom surface forms a reactor discharge port. The reactor stirring assembly is installed on the reaction tank. On the top surface of the kettle shell and coaxial with the central axis of the reactor shell, the ultrasonic generator is installed on the circumferential side of the reactor shell

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