A device and a method used for separating light thin film from plants through breaking

Abstract

The invention provides a device and a method used for separating light thin film from plants through breaking. The device comprises a centrifugal separation mechanism, a roller conveying mechanism, a breaking and winnowing mechanism and an electrostatic attraction mechanism, which are arranged from top to bottom successively. The centrifugal separation mechanism firstly performs mud shaking to remove big soil particles; small soil particles roll among rollers of the roller conveying mechanism and are removed; the breaking and winnowing mechanism breaks a mixture of plants and thin film and performs winnowing according to the characteristic that the specific gravities of the plants and the thin film are different to primarily remove thin film mixed with the plants; the electrostatic attraction mechanism performs deep attraction on the plants subjected to winnowing to further remove thin film mixed with the plants. The device can perform breaking and separating on thin film mixed with plants, is especially suitable for collecting mulching film and peanut vines separately, and is low in manufacture cost and convenient to operate.

Description

technical field [0001] The invention belongs to the field of modern agricultural production, and in particular relates to a crushing device and crushing method for light film for plant separation, which can be applied to the separation of plastic film and the collection of peanut seedlings. Background technique [0002] With the continuous development of agricultural modernization, the use of plastic film in rural areas has become an important means to ensure high and stable agricultural production. However, with the extension of cultivation years, the recovery rate of residual plastic film is low, and the amount of residual plastic film in the soil gradually increases, which can easily cause plastic film pollution. [0003] Plastic film mulching is an indispensable part of agricultural production. It can retain water and fertilizer, prolong the growth period of crops, and ensure high yields of agricultural products. However, since the plastic film is difficult to degrade a...

AI Technical Summary

Problems solved by technology

Because the change of the residual film fragments in the soil cuts off the continuity of the soil pores, a greater resistance is generated when the gravitational water moves, and the downward movement of the gravitational water is relatively slow, so that the amount of water infiltration decreases due to the increase of the residual film, and the soil moisture content decreases. It weakens the drought resistance of cultivated land, and even makes it difficult for groundwater to infiltrate, causing serious consequences such as secondary salinization of soil

In addition, the residual film affects the physical properties of the soil and inhibits the growth and development of crops.

The main components of mulch materials are polymer compounds. Under natural conditions, these polymers are difficult to decompose. If they stay in the field for a long time, they will affect the air permeability of the soil, hinder the migration of soil water and fertilizer, and affect the activities of soil microorganisms and normal soil structure. form, eventually reducing the soil fertility level, affecting the growth and development of crop root systems, resulting in crop yield reduction

2. Harm to crops

Due to the limitations of recycling residual film, and the incomplete treatment of recycled residual film, the method is not appropriate, and some of the cleaned residual film is discarded on the edge of the field and on the ground. After the strong wind blows, the residual film is blown to the front of the house, the field, the Treetops, affecting the landscape of the rural environment, causing "visual pollution"

4. Harm to livestock

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