A dry powder mixing device

Abstract

The invention discloses a dry powder mixing device, which comprises a mixing cylinder and a feeding tank, the upper end wall of the feeding tank is fixedly embedded with several nozzles, and the air inlets of the nozzles are all connected with Laval nozzles; the mixing cylinder There is an air outlet and an adjustment port on the upper left cylinder wall. There is a slideway in the adjustment opening. A slider is slidably connected to the slideway. The lower end of the slider is fixedly connected with the baffle plate. Arc-shaped plate structure, the baffle plate is composed of an air outlet part and a sealing part, the air outlet part is matched with the air outlet, and a number of air outlet mesh holes are opened on the wall, and the inner wall of the mixing cylinder is also provided with a storage groove for receiving the sealing part on the right side of the adjustment port ; The inner wall of the mixing cylinder is fixedly connected with a disturbing flow bar and a splitter plate except for the air outlet, the regulating port and the receiving groove. The present invention integrates the advantages of the existing two mixers, and has good mixing effect and high efficiency. Good continuity, simple structure and convenient care.

Description

technical field [0001] The invention relates to a mixing device, in particular to a dry powder mixing device. Background technique [0002] At present, with the development of passivation technology, the composition of powder passivation products is becoming more and more complex, and the powder mixing process is becoming more and more important. In the prior art, the mixing method is relatively simple, one is to use multi-arm stirring The net stirs the raw materials for forced mixing, most of which are funnel-shaped structures. After the raw materials are put in from the top, they are stirred and mixed and then discharged from the bottom. The continuity is good, and the feeding can be carried out without interruption. There is a dead angle between the net and the mixing tank, and the mixing path is shortened when the volume is small, which has a certain impact on the mixing effect. At the same time, it is troublesome to repair and replace the metal mixing net when it is def...

AI Technical Summary

Problems solved by technology

[0002] At present, with the development of passivation technology, the composition of powder passivation products is becoming more and more complex, and the powder mixing process is becoming more and more important. In the prior art, the mixing method is relatively simple, one is to use multi-arm stirring The net stirs the raw materials for forced mixing, most of which are funnel-shaped structures. After the raw materials are put in from the top, they are stirred and mixed and then discharged from the bottom. The continuity is good, and the feeding can be carried out without interruption. There is a dead angle between the net and the mixing tank, and the mixing path is shortened when the volume is small, which has a certain impact on the mixing effect. At the same time, it is troublesome to repair and replace the metal mixing net when it is deformed and damaged. In addition, when the metal surface is worn, the metal The powder falling and doping in the raw material will also affect the purity of the raw material. The other is the drum rolling type, which has a better mixing effect, but it is bulky, the stirring efficiency is low, the mechanical structure is complicated and maintenance is troublesome, and the continuity is poor. The second charge can only be made after the mixing is completed. Therefore, in order to better realize the production of powder passivation products, it is necessary to design a new mixing device that can combine the advantages of the two mixers.

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