Rotary grain spreader

Abstract

The invention relates to a rotary grain spreader capable of automatically grading in the process of lightening grain loading in a squat silo. Because a chute or a flow pipe is dragged by a motor to rotate around a grain outlet rotating shaft in most of the conventional grain spreaders, shortages of complex structure, inconvenient installation, extra energy consumption and the like exist. A method for arranging a guide plate 6, a guide plate 7 and a guide plate 8 below a grain outlet gap 11 of a chute 4 and at an end outlet 10 of the chute 4 is utilized, so that a certain inclined angle is formed between the flow direction of grains and the axis of a fixing barrel 2, the guide plates are needed to apply certain force to the grains to change the flow direction of the grains, a horizontal component of the force is counteracted on the guide plates, the reacting force pushes a rotary barrel 3 and the chute 4 to rotate, outflowing grains are spread in a larger flat area, automatically grading phenomena are reduced in the process of loading the grains into the squat silo, and the defects that the spreader has a complicated motor-dragged structure and is inconvenient to mount are overcome.

Description

technical field [0001] The present invention relates to a kind of equipment for reducing the automatic grading of grain impurities produced when the granary is loaded with grain, in particular to a kind of self-rotating cloth that can reduce the accumulation of impurities caused by automatic grading when the shallow garden silo or the vertical silo is loaded with grain. grain utensils. Background technique [0002] Modern grain logistics requires fast grain entry and exit. The state has invested in the construction of large-scale modern grain depots, mainly shallow garden warehouses and vertical silos, which has greatly accelerated the speed of grain entry and exit. However, since the shallow garden warehouse and the vertical silo have only one grain inlet at the top, and the grain inlet is tens of meters away from the ground, when entering the grain, due to the different physical properties of the impurities and grain particles, it will cause serious automatic classificatio...

AI Technical Summary

Problems solved by technology

However, since the shallow garden warehouse and the vertical silo have only one grain inlet at the top, and the grain inlet is tens of meters away from the ground, when entering the grain, due to the different physical properties of the impurities and grain particles, it will cause serious automatic classification of grain miscellaneous, resulting in Mineral dust forms an impurity column under the grain inlet, and light impurities fly around to form a light impurity ring area around it, which affects grain ventilation and fumigation and insecticide. The concentration of microorganisms carried by impurities will seriously affect the safe storage of grain

In order to reduce the accumulation of impurities caused by automatic grading caused by excessive concentration of grain from one grain inlet, certain measures have been taken at present, such as setting a conical hood under the grain inlet so that the grain flowing into the grain inlet follows the slope of the conical hood. Move outward for a certain distance to disperse the concentrated falling of the grain, but this method can only change the grain into a ring from a point, and an impurity ring area will still be formed under the conical hood, which cannot effectively eliminate the impurity Accumulation, currently rarely used due to poor efficacy

Another method is to install a high-speed rotating device under the grain inlet, and use the centrifugal method to throw the grain a certain distance to reduce the accumulation of impurities in the grain pile. This method has a certain effect on vertical silos with relatively small diameters. Shallow garden warehouses with a diameter of tens of meters are not effective. To throw grains tens of meters requires high-power equipment. The thrown grains and impurities fall at a fixed point, and they are thrown farther than heavy impurities, and their specific gravity is small. Throwing the impurities close will still cause the accumulation of impurities, and the high-speed rotation will also cause the grains to break and affect the stability of the stored grains. Therefore, the above two technologies have not been popularized and applied so far due to their obvious shortcomings.

Another solution is the rotary chute structure, which uses a motor to drive the chute to rotate at a slow speed. There are slits along the length direction under the chute, and the grain flowing into the grain mouth is distributed to the entire grain through the slits under the symmetrical chute on both sides. In terms of diameter, the grain is evenly distributed to the entire circular plane covered by the length of the chute by rotating the chute. This method better solves the phenomenon of automatic grading, but this structure requires motor drive, and the structure is complicated, and installation has certain influence on the structure of the granary. Requirements also increase energy consumption

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