Screening type clay sand fixing grass planter

Abstract

The invention discloses a screening type clay sand fixing grass planter which is characterized in that a collection and transportation device, a screening device, a sowing device and a driving device are arranged on a rack, wherein the screening device is arranged below the tail end of the collection and transportation device; the driving device is sued for driving the collection and transportation device and the screening device; the collection and transportation device comprises a sand excavation plate and a scraper type conveyer belt; the sand excavation plate is hinged on the rack and the middle part of the sand excavation plate is connected with the rack through a hydraulic rod; the tail end of the sand excavation plate extends onto the scraper type conveyer belt; the screening device comprises a plurality of layers of screens and a bottom plate; the tail end of the scraper type conveyer belt is arranged above the uppermost screen; each layer of screen is inclined and the lower end of each screen is the side in the advancing direction; the bottom plate is arranged below the lowermost screen; the sowing device comprises a seed box and a seed transportation pipe which is communicated with the seed box; and the outlet of the seed transportation pipe is arranged at the lower end of the lowermost screen. According to the screening type clay sand fixing grass planter, the mechanical operation of a clay sand-barrier sand fixing technology is carried out, and the aims of using local materials and permanently fixing sand with low cost are achieved.

Description

technical field [0001] The invention relates to the technical field of desertification prevention and control, in particular to a screening-type clay sand-fixing and grass-planting machine suitable for desert control in arid areas. Background technique [0002] my country currently has desert and sandy land area of ​​1,731,100 km 2 , accounting for 18.03% of my country's total land area, the national economic loss due to land desertification including desertification is about 470 billion yuan, and the sandy land that can be controlled is about 500,000 km 2 . According to the "National Ecological Environment Construction Plan" promulgated by the State Council in 1998, in terms of desertification control, the short-term goal (2010) is proposed to be 220,000 km 2 , the medium-term goal (2030) is 400,000 km 2 . To control desertification, we must first consider the situation of water source control. The most serious and concentrated areas of desertification are mainly the we...

AI Technical Summary

Problems solved by technology

However, there are constraints such as gypsum powder, bentonite, charcoal powder and other raw materials with high cost and complex formulations. Secondly, gypsum powder and charcoal powder must be calcined, milled and transported over long distances, consuming a lot of energy and emitting greenhouse gases; Wang Quanxiang invented "a new technology for gypsum sand-fixing and sand control, greening and beautifying deserts" [patent application number CN01109304.8], which uses the hydration properties of hemihydrate gypsum or anhydrous gypsum powder to spray on sand dunes after rain or artificial water diversion Sprinkle a certain amount of gypsum powder on the final sand dunes, and then manually use toothed agricultural tools or toothed machinery to mix the gypsum powder and sand grains containing a certain amount of water and compact them, so that the surface of the sand dunes can be consolidated in a short period of time. Forms a shell of gypsum-sand mixture

This technology requires a certain amount of gypsum powder and more labor, and the cost of materials and labor is high, making it difficult to apply on a large scale

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