Separation method of solid fermentation fungal spore

Abstract

The invention discloses a separation method of solid fermentation fungal spore, comprising the following steps: 1) spore-containing solid culture medium is dried and ground into granules which are sucked into a swirling flow feeder along the tangential direction; 2) spore powder and hyphae enter a primary separator with airflow along the tangential direction after being separated from the granules; 3) spore powder and hyphae move in a vortex pair way, hyphae enter a secondary collection canister and spore powder enters a primary collection canister; 4) the blower is shut off after the separation work is over. The method of the invention is adopted to separate the solid fermentation fungal spore, which has the characteristic of high separation efficiency.

Description

technical field [0001] The invention relates to a method for separating solid fermentation fungal spores. Background technique [0002] Mycoinsecticides are a class of microbial pesticides that have developed rapidly in the world in recent years, and use the effective infectors (usually aerial conidia) of biocontrol fungi as active ingredients; among them The purity and quality of conidia powder are directly related to the quality, shelf life and field application effect of spore preparations (such as oil, suspoemulsion, etc.) (whether the nozzle is blocked and the insecticidal effect is good); Due to quality problems such as these, the industrialization of fungal pesticides in my country has been slow. Therefore, it is necessary to efficiently separate high-purity and high-quality spore powder to fully promote the rapid development of the fungal pesticide industry. [0003] The existing methods for separating solid particulate materials are usually based on cyclone separatio...

AI Technical Summary

Problems solved by technology

Other foreign cyclone separation devices generally use a fluidized bed to separate the solid fermentation medium particles from the spores on the surface, and then use airflow to introduce the spores into multiple parallel cyclone separators to improve work efficiency, but it is usually due to inability to solve the problem. For the escape of spores, it is still necessary to add protective devices

The cyclone dust collectors used in the above patents are generally suitable for purifying non-sticky, non-fibrous dry dust larger than 5-10 microns; however, when separating the broken spores and hyphae of the solid fermented product, there is always a mixture of the two during the cyclone process The problem of being difficult to separate together eventually makes the collected spore powder mixed with mycelium fragments, which seriously affects the purity of the spore powder

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