Automatic powder material feeding method and device

Abstract

The invention discloses an automatic powder material feeding method which comprises the following steps of: 1) installing a material mixing mechanism; 2) installing a liquid conveying mechanism; 3) installing a powder material conveying mechanism; 4) installing a control device; and 5) starting up a control device, and controlling the material mixing mechanism, the liquid conveying mechanism as well as a powder material conveying mechanism so as to achieve automatic feeding, material mixing and material conveying of the powder materials. The invention also discloses an automatic powder material feeder for achieving the method. The automatic powder material feeder comprises a centrifugal pump, a feeding mechanism, a Venturi tube, a pressure switch, a three-way pneumatic valve, a feeding pipe as well as a PLC (program logic controller). According to the automatic powder material feeding method, liquid and powder materials are directly mixed together in the Venturi tube by applying a Venturi vacuum principle, and the powder material conveying speed is controlled automatically according to different formulas so as to guarantee the mixed product concentration; and the solid content of products is high, additional equipment and working procedure steps are not increased in the whole process, and according to the automatic powder material feeding method, efficiency and energy conservation are realized, performances are reliable, and automation degree is high.

Description

technical field [0001] The invention relates to the technical field of powder feeding equipment manufacturing, in particular to an automatic powder feeding method using Venturi vacuum principle mixing and an automatic powder feeding machine implementing the method. Background technique [0002] In the traditional medicine, battery and other manufacturing industries, the dissolving and mixing process of powder is generally to use mixing equipment to put quantitative liquid and quantitative powder into the reaction kettle in advance, and drive the agitator to rotate in the reaction kettle through the motor, and finally put The powder is mixed with the liquid before feeding operation. However, the above-mentioned dissolution mixing process has the following disadvantages: 1. During the mixing process, a large amount of dust will be generated, which float on the liquid surface and do not sink into the liquid, making it difficult to stir; 2. During the mixing process, the powder ...

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Problems solved by technology

However, the above-mentioned dissolution mixing process has the following disadvantages: 1. During the mixing process, a large amount of dust will be generated, which float on the liquid surface and do not sink into the liquid, making it difficult to stir; 2. During the mixing process, the powder Agglomeration will occur in the liquid and it is difficult to mix evenly; 3. The mixing process takes a long time and the work efficiency is low; 4. The liquid and powder need to be manually quantified and put into the reactor, which is labor-intensive

However, the powder and liquid sucked from the silo can only be output after being uniformly dispersed and mixed in the working chamber of the homogenizer. The powder and liquid have to go through repeated mixing processes to achieve a uniform effect. It is still relatively long, additional equipment and process steps have been added, and the working method, work efficiency and degree of automation still need to be improved

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