Black soldier fly larva asphyxia separation method and separation device

Abstract

The invention discloses a black soldier fly larva asphyxia separation method and separation device. The black soldier fly larva asphyxia separation method includes the particular steps: (1) placing black soldier fly larvae and food mixture into an open container; (2) placing the open container into a closed environment; (3) gradually reducing the concentration of oxygen in the closed environment to be 4%-12%; (4) enabling the black soldier fly larvae to gradually climb out of the open container in the gradually reduced oxygen concentration, and separating the black soldier fly larvae from food. The black soldier fly larva asphyxia separation device comprises a closed box and the open container placed at the bottom of the closed box, a certain black soldier fly larva activity space is reserved between the side wall of the open container and the side wall of the closed box, a bottom peripheral area of the open container inside the closed box is a black soldier fly larva collection area,and an air valve capable of being communicated with the outside is arranged on the closed box.

Description

technical field [0001] The invention relates to the field of black soldier fly breeding, in particular to a black soldier fly larva suffocation type separation method and a separation device which need to separate the black soldier fly larvae from food during the black soldier fly breeding process. Background technique [0002] Black soldier fly is a kind of resource insect, and it is an emerging technology to use black soldier fly larvae to decompose organic waste. After the larva grows and matures to a certain extent, it needs to be separated from the feeding environment for utilization. Currently commonly used separation methods include sieving and heating escape. in: [0003] 1. Sieving method: Use multi-layer vibrating sieves with different apertures to sieve the insect material mixture, and sieve the food through the vibrating sieve to leave black soldier fly larvae. The disadvantage of this method is that the dry humidity of the insect material mixture that needs t...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the energy consumed during heating is large, and it is not suitable for batch separation in the black soldier fly feeding system; and the ammonia gas in the insect material mixture will be volatilized during the heating process, and the pungent odor of ammonia gas will lead to pollute the environment

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