Efficient dispersed venturi ejection reactor

Abstract

The invention relates to an efficient dispersed venturi ejection reactor, which comprises a high-speed jet nozzle, venturi equipment and a heat insulation jacket, wherein the connecting end of the high-speed jet nozzle and the venturi equipment is connected and sealed by a non-standard flange and a venturi flange, and a venturi section hot steam inlet and outlet pipe is arranged on a venturi heat insulation jacket; a drainage tube section hot steam inlet and outlet pipe is arranged on a drainage tube heat insulation jacket, and a finned tube is arranged in the drainage tube heat insulation jacket. Hydrogen peroxide is ejected out by the nozzle at high speed, and a negative pressure area is formed in a suction chamber, so that a yellow phosphorus liquid containing an arsenic impurity flows through a suction tube into the suction chamber, the yellow phosphorus is efficiently dispersed under the action of jet turbulence, and then the yellow phosphorus and the hydrogen peroxide are subjected to a sufficient contact and mixing reaction in a throat tube and are drained along a diffusion tube and a drainage tube; an outer-layer heat insulation jacket allows the reactor to be at appropriate work temperature. Through the driving of a circulating pump, the uninterrupted contact and mixing reaction of the hydrogen peroxide and the yellow phosphorus is realized, and the ultimate purpose of arsenic removal of the yellow phosphorus is achieved.

Description

technical field [0001] The invention relates to a high-efficiency dispersed Venturi ejector reactor, which belongs to liquid-liquid two-phase flow mixed reaction equipment, and is used for removing impurity arsenic in a yellow phosphorus arsenic removal system. Background technique [0002] Yellow phosphorus is the basic raw material of many phosphorus-containing compounds, and plays an important role in basic industrial raw materials. The related products and their derivatives prepared from phosphorus-containing compounds play an important role in many fields at home and around the world. missing important role. Usually, the impurities of industrial yellow phosphorus contain arsenic, sulfur, iron, lead, aluminum, organic matter (commonly known as oil) and carbides, etc., especially the content of arsenic is generally above 100ppm, and some are even as high as 300-400ppm. Most of them will affect the application range of yellow phosphorus products, and at the same time affe...

AI Technical Summary

Problems solved by technology

The biggest disadvantage of using a mechanical stirrer is that there are moving parts in the whole process, including the shaft connected to the stirring paddle, the bearing, the reducer, etc., and each part will be worn to varying degrees, and the process needs to be driven by a motor and requires external power.

On the other hand, the use of stirrers has the potential for swirls and cylindrical swivel zones, which can lead to a serious loss of stirring efficiency

Moreover, due to the limitation of stirring speed, the degree of dispersion of yellow phosphorus cannot be guaranteed

In the actual application process, the stirring effect in the small-scale experiment is good, but there are many problems when considering the scale-up design of the equipment

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