SU325933A1 - METHOD FOR CLEANING GRAIN - Google Patents

Description

Methods are known for harvesting cereals, such as rice, in which the mass is cut, laid for drying into rolls, which are then picked and threshed. This separate method of harvesting is the main method of harvesting rice. This is explained by the fact that the grain moisture in rice that has reached harvest ripeness is 19-21%, while the stalk mass has a moisture content of up to 50% or more. Such a drop in humidity makes it difficult to thresh the mass, so it is mown and laid into rolls for drying. But even in this case, mainly due to large thicknesses, rolls and high soil moisture, the stem mass dries poorly, when high humidity or long-term drying grain moisture increases and there is a need to pick and thresh the rolls 2-3 times. The peculiarity of rice consists of ech, e, and the fact that grains collected from different parts of one stalk have different humidity — the grains collected from the top marks have less moisture and can be threshed directly during the mowing process, and the grains collected from the lower panicles , have significant moisture and must be dried before threshing. With the existing, the same technology of harvesting grain with different humidity is dumped into the sheeting, roll, they get wet and

together with the bulk, they form a mosh, ny roll, which dries poorly for a long time.

According to the proposed method, in order to intensify the drying of the weight of the upper part of the upper unit of the Rus, it is cut off separately from the lower one and at the same time subjected to threshing, and the mass from the lower Rus is placed in the roll. The drawing shows a two-cut method of plants, where H is the height of the stem,

// 1 - the upper rus cut zone, Yao - the lower rus cut zone, Yaz - the height of the stubble.

The proposed method of cleaning can be implemented, for example, with a combine harvester equipped with a second rezhushim apparatus,

adapted for laying the cut mass into a roll. Rezhusimy rezhushim apparatus top rus I | the plants immediately go to the threshing machine of the combine, the lower rus Yao, mowed by the second rezhush, the apparatus, is laid in a roll. The bare part of the first russ, obtained after threshing, is collected and taken to the edge of the check. The swath obtained from the plant russia, after drying, is picked up at the secondary pass of the combine and is threshed.

rolls for drying with further selection of rolls and their threshing, characterized in that, in order to intensify drying with skeshinoi into a roll of mass, it is cut with two brownies, but the mass from the upper tier is immediately threshed, and from the lower one is fed into the rolls.