Porous granulation device for preparing biocontrol microcapsule microbial inoculum

Abstract

A porous granulation device for preparing a biocontrol microcapsule microbial inoculum is disclosed. The invention relates to a porous granulation device which is used for preparing a biocontrol microcapsule microbial inoculum. Manual work is replaced by machinery, the number of liquid outlet holes is increased, the defect that a manual extrusion granulation method is low in efficiency is overcome, the microcapsule forming speed is greatly increased, and the labor cost is reduced; the temperature of a microcapsule preparation liquid can be controlled, and the influence of the production process on the activity of the biocontrol bacteria is greatly reduced. The flowing speed and the titration speed of the microcapsule preparation liquid can be adjusted according to indexes such as the concentration and the viscosity of the biocontrol bacterium liquid; and used materials and equipment are high in adjustability and reformability, and can be modified in time according to actual use conditions. The device is simple and convenient to use, each working unit is clear in division of labor, and the device can be used for mass production of the biocontrol microcapsule microbial inoculum.

Description

Technical field: [0001] The invention belongs to the field of device preparation, and in particular relates to a porous granulation device for preparing biocontrol microcapsule bacterial agents. Background technique: [0002] Microcapsule is a kind of semi-permeable capsule with a diameter of 1-5000 μm that uses natural or synthetic polymer materials to encapsulate core substances such as solid, liquid or gas by chemical, physical, physical-mechanical or physical-chemical methods. Sexual or microscopic sacs sealed with a capsule. Using microcapsule preparation technology to process biocontrol microbial liquid into microcapsule bacterial agent has the following advantages: (1) change the material form, can transform the bacterial liquid into a solid, suitable for storage and transportation; (2) can make the active ingredients slow (3) can protect the microbial cells in the capsule from damage by ultraviolet rays, rainwater, etc.; (4) improve the stability of the microbial ag...

AI Technical Summary

Problems solved by technology

[0003] There are many existing microcapsule encapsulation techniques. The commonly used methods are spray drying and interfacial polymerization. Although these two methods can produce microcapsules in batches, they have some shortcomings. The high temperature in the preparation process can easily inactivate microorganisms. cause loss

The extrusion method can just overcome the shortcomings of the above two methods. This method squeezes the core material—the biocontrol microorganism cell into the immobilization solution through mechanical extrusion, and the immobilization of the wall material At the same time, the biocontrol bacteria are coated in the microcapsules to obtain a grain-shaped microcapsule product, but the current production efficiency of this method is low and cannot meet the requirements of mass production

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