Full
Outline
In recent years, film mulching technology has been widely used in agriculture. After cotton harvest, large amounts of residual film need to be recycled, simultaneously, cotton stalks crushing needs to be carried out, in Xinjiang, China. The existing integrated machine for straw crushing and residual film recycling in China can be mainly divided into drum-type and chain teeth type. Considering the current drum-type integrated machine, which has a low residual film recovery rate, and high impurity content in the residual film, the rubbing-type residual film baling mechanism was prone to throw out the residual film and was easy to deform the baling belt and other problems, an integrated machine for straw crushing and residual film recycling and baling was developed. Through principle analysis and calculation, the key parameters of the hammer blade straw crushing mechanism and the screw conveying mechanism were determined; the residual film picking mechanism and the wheel drive mechanism were improved, and the dimensions and rotation speed of the film pick-up drum, the transmission ratio between the wheel and the film pick-up drum, the dimensions of the film pick-up teeth and the space between adjacent film pick-up teeth were determined; through theoretical analysis, the structural parameters and operating parameters of the screw impurity removal mechanism and the film removal mechanism were determined; by analyzing the process of residual film baling, the parameters such as the angle between the baling belt and the horizontal plane, the linear speed of the baling belt, and the number and space of the support rollers were determined. The field test demonstrated that the optimal operating parameters of the machine were as follows: the machine's advancing velocity was 10 km/h, the depth of the film-picking teeth was 25 mm, and the height of the stubble was 10 cm. Validation test results demonstrated that under the aforementioned optimal operating parameters, the film pickup rate was 89.78%, the soil content was 11.15%, and the pass rate of crushed straw was 94.79%.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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