Efficient live earthworm separating method and device for implementing method

Abstract

The invention provides an efficient live earthworm separating method and a device for implementing the method, and solves the problems that in the prior art, the practical value is low, death or vigorreduction of earthworms is caused easily, the separation speed is low, chemical residues exist, the labor intensity is high, the production efficiency is low and the like. The separating method comprises the following steps: placing a material in a separating container and spraying water to the material; leaving the material standstill until live earthworms migrate to the lower layer of the material; partially stripping impurities; and collecting the live earthworms. The separating device comprises an operation unit, a separating unit and a collecting unit. Water is used as a separating medium, the separating speed and purity of the earthworms are increased, chemical fed product pollution does not exist, secondary mixing of the live earthworms and the impurities is avoided, the productionefficiency is improved, separating operation conditions are improved effectively, the labor intensity of workers is greatly reduced, occupation of the site for separation operation of live earthwormsis greatly reduced, and the practicality and the production efficiency are greatly improved.

Description

technical field [0001] The invention relates to the technical field of earthworm breeding and processing, in particular to an efficient method for separating live earthworms and a device for realizing the method. Background technique [0002] The material to be separated from live earthworms is composed of linear soft live earthworms and impurities (a mixture of vermicompost, incompletely consumed earthworm bait, soil particles, etc.). During production, live earthworms and impurities need to be separated, and require The separated live earthworms have ideal vigor and high purity, so that they can be used for subsequent processing; the impurity part in the separation process is generally called vermicompost, which is mainly used for fertilizer purposes, and there is no special requirement for the number of live earthworms contained in it. . [0003] The separation method based on the biological principles of earthworms is mainly based on the biological characteristics of ea...

AI Technical Summary

Problems solved by technology

[0004] Some scholars have proposed to use the principle of filtration to separate live earthworms, that is, to use mesh sieving to separate them. However, because the live earthworms in the material are linear and the vermicompost is granular, they are mixed with each other to form a highly cohesive paste. It is very difficult to filter materials; at the same time, during the filtration process, earthworms will drill into the filter mesh, and the earthworms will be entangled in the mesh and cause the mesh to be completely blocked; In the case that most of the meshes are entangled and blocked by undrilled earthworms, the meshes will be completely blocked in a short time due to the influence of gravity, which will be continuously compressed and semi-solidified; therefore, the method of separating earthworms based on the filtration principle has no practical value

[0005] Some scholars have also proposed to separate earthworms based on the principle of animal stress. Specifically, measures such as water flooding, electric shock, etc., or the addition of chemical substances such as acid, alkali and salt can be used to form an unsuitable living environment, so that earthworms will have a stress response and escape from the living area. But above-mentioned method has following problem: (a) can produce the environmental stimulation that is not suitable for earthworm survival in the separation process, can directly cause part earthworm to die or vigor to reduce significantly; Affected by the length of migration time and the smoothness of the migration process, more earthworms will die or their vitality will be greatly reduced; (c) this type of method is still based on the self-migration of earthworms to separate earthworms, and the short-term activity of earthworms after stress begins Faster, but the vigor is quickly and greatly reduced, which will reduce the separation speed; (d) when chemical stress is used to achieve stress, there are still problems of pollution and toxic substances

Therefore, the number of living earthworms separated by the separation method based on the principle of stress is relatively small, there are serious problems of reduced vitality, high mortality, and the pollution of dead earthworms to live earthworms, which is also not of practical value.

[0006] At present, the earthworm separation method based on biological principles is still used in production. The main process is: collect the materials to be separated, transport the materials to the separation work area where the materials can be stacked on the ground, pile the materials on the ground, and wait for the earthworms to feed the materials. Migrate inside and at the bottom, and then gradually separate the impurities in the outer layer of the material, and harvest when the remaining live earthworms reach a purity of more than 60%; when all the materials to be separated are separated, the next feeding and separation process can be carried out; this The method also has the following problems: ①. Since the collection site is scattered on a plane, it is easy to produce secondary mixing of live earthworms and impurities during the separation process, reducing the separation purity of earthworms and vermicompost, and prolonging the separation time; ②. The material pile at the site needs to be separated before the next round of separation process can be carried out. The site occupies a large area and cannot form a flow operation, which seriously reduces production efficiency; The collection of living earthworms is all manual work, the working state is squatting operation, the labor intensity is high, and the production efficiency is low

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