Film and stalk separation method and device

Abstract

The invention discloses a film and stalk separation method. The method comprises the processes that films and stalks are put into a separation box under the action of negative pressure; the interior of the separation box is divided into a stalk collecting cavity and a film collecting cavity by a gap type filter screen fixed in the interior of the separation box; and the films and the stalks are separated from each other by using a stalk discharging and film cutting device, a guide type film discharging device and the filter screen. The invention provides a film and stalk separation device correspondingly. The device structurally comprises a material box, the separation box, a negative pressure driving device and a power input device, wherein the separation box is a main component, and thegap type filter screen and a mesh type filter screen are fixed in the interior of the separation box; the box body of the separation box is divided into the stalk collecting cavity and the film collecting cavity by the filter screens; the stalk discharging and film cutting device is installed in the stalk collecting cavity; the guide type film discharging device is installed in the film collectingcavity; the cotton stalks are separated in the stalk collecting cavity by the gap type filter screen and discharged through the stalk discharging and film cutting device; and the mulching films enterthe film collecting cavity through the gap type filter screen, so that the cotton stalks and the mulching films are separated. According to the film and stalk separation method and the film and stalkseparation device, the principle is simple, the separation effect is good, the difficult problem of separation of the mulching films and the cotton stalks can be solved, and the film and stalk separation method and the film and stalk separation device are very practical.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a membrane rod separation method for separating and reusing plastic film from a cotton field membrane rod mixture, and a corresponding membrane rod separation device. Background technique [0002] Film mulching planting in cold and dry agricultural areas not only preserves grain and increases income, but also brings serious white pollution. Mechanized recovery and recycling of plastic film is the direction of modern agricultural development. In recent years, machine-harvested mulch is generally treated by centralized landfill or incineration, which directly causes secondary pollution to the land and the environment, and it is impossible to realize the regeneration and recycling of machine-harvested mulch. As a renewable material, the mulch film has not been recycled mainly because the machine-recovered mulch film contains high impurities and serious "knotting" (that is, str...

AI Technical Summary

Problems solved by technology

[0003] At present, manual sorting and washing of plastic film are often used to separate plastic film, which is labor-intensive, low-efficiency, and high-cost, making it impossible to achieve large-scale promotion and application, especially for the knotted machine-coiled rod mixture. more helpless

Therefore, in order to solve the problems of separation and cleaning of the mixture of the mechanical film harvesting rod and the waste of plastic film resources, it is urgent to develop a method and device that can efficiently separate the plastic film and the cotton rod.

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