RU1828773C - Device for treatment and receiving of grain heap - Google Patents

Abstract

Usage: for reception, separation, temporary storage with simultaneous ventilation of grain in agriculture. SUMMARY OF THE INVENTION: a device includes a thrower, a pneumatic separation chamber with grain inlet and outlet channels, an air supply channel in communication with a psevmo separation chamber, a grain hopper in communication with a grain output channel, and an additional air supply channel in communication with the bottom. The hopper is made of at least three sections of a trapezoidal cross-sectional shape, with blinds having a different bottom and side walls, separated by partitions with an elastic coating, pivotally attached to the upper part of the section. The sections of the hopper are made with entrance windows located at their ends for the removal of grain with control flaps. 2 ill.

Description

Fig. F

The invention relates to agricultural machinery and can be used for processing, separating, sorting, receiving, temporary storage while ventilating and transporting grain of agricultural crops.

Figure 1 shows a device for processing and receiving grain heap, top view; figure 2 is the same side view.

A device for processing and receiving grain heaps contains a feeder 1. thrower 2 grain heaps, a pneumatic separation chamber 3 with a grain heap input channel 4 and a clean grain output channel 5, an air stream channel 6 with an air flow source 7, an impurity output channel 8, a grain hopper, consisting of a grain receiving section 9, an aeration chute 10 with a conveying 11 and air under the water channel 12, a louvre bottom 13, an air chamber 14, an air flow generator 15, an additional air duct 16, a discharge conveyor 17. Sections 9 contain a louvre bottom Another 13, side walls 18, partitions 19 with elastic coating 20, Partition 19 is pivotally fixed with the lower edge 21 to the upper part of section 9 and is mounted with the possibility of changing the angle of inclination and height. The duct 16 through the windows 22, overlapped by the shutters 23, is connected to the air chamber And, and through the windows 24, blocked by the shutters 25 is connected to the air supply channel 12 of the duct 10. The shutter 26 is fixed at the ends of the section, blocking the outlet section of the conveying channel 11 of the duct 10. The flaps 23 and 26 are adjustable.

The device for processing and receiving grain heap works as follows: the grain heap is taken by feeder I and fed into thrower 2. The grain heap is thrown into the chamber 3 by pneumatic separation with a thrower 2. When throwing in form a grain stream. Due to the vortex flows formed by the uneven profile of the tangled air stream, the inertial forces and the forces of gravity, the grain stream expands in height. Due to the resistance of the air and less than the grain, the axial kinetic energy reserve, the speed of impurities is sharply reduced and they are discharged by the air flow through the channel 8 for the removal of impurities outside the pneumatic separation chamber 3. A grain with a kinetic energy reserve greater than impurity flies over the airflow zone and enters the grain section 9 through the clean grain output channel 5.

Due to the difference in aerodynamic and inertial properties of individual grains, the grain flow is divided into fractions that follow different trajectories

movements fall into different sections 9.

Turning the corner and changing the height of the partition 19 relative to the upper part of the section take the grain on the elastic coating 20 of the partition 19 and adjust

quantity and quality of grain in sections 9 of the hopper,

To ventilate the grain fractions, an air flow generator 15 is turned on. Through the shutters 23 and 25 open the windows 22 and 24. Air is fed into the air chambers 14 and the air supply ducts 12 of the air ducts 10, and from them through the openings of the louvered side walls 18 and the louvred bottoms 13 into the embankment of fractions

0 grain.

To unload grain fractions, a discharge conveyor 17 is activated. The shutters 26 open the exit sections of the conveying channels 11 of the aerosolines 10, and the shutter 25 opens the window of the corresponding section 9 of the hopper. In this case, the shutter 23 of the window 22 is set to the closed position. The flow generator is driven. Air from the dispensing duct 16 through the window 24 enters the air supply channel 11 of the aeroflot 10. Under the influence of the kinetic energy of the air jets leaving the slots of the louvre bottom 13, particles of the grain material fractions are transported along the conveying channel 11 and passed through the exit section sections enter the conveyor 17. Due to the cross section of the section in the form of a trapezoidal shape with

With a smaller base located in the lower part of the section, the grain fractions by gravity along the inclined parts of the sections enter the conveying channel 11, the air duct 10, as a result of which the capacity of the section 9 of the hopper is completely free of grain.

If necessary, by installing the shutters 23.25, 26 in the appropriate position, the following technological processes are carried out:

- ventilation of the embankment of grain fractions in one, several, and in all sections;

- unloading grain fractions from one or, if possible, several sections, or

5 ventilation of the grain embankment in the remaining sections.

The productivity of the device during the processing and reception of grain heap is controlled by changing the speed of the meta-separator along the pile.

The processing quality of the grain heap in the pneumatic separation chamber is controlled by changing the air flow rate by changing the rotation speed of the drive shaft of the air source 7.

The quantity and quality of the separation of the material into fractions is ensured by the rotation of the partitions 19 relative to the lower edge or by changing their height position, as well as both of these methods.

Both when ventilating the grain fractions and when unloading them, the air supply to the channel is controlled by measuring the position of the shutters 23, 25, as well as by changing the speed of the wheel of the generator 15 of the air flow.

The capacity of the device when unloading grain fractions from sections 9 is controlled by changing the position of the shutter 26.

The use of a device for processing and receiving grain heap allows to increase the efficiency of separation of grain heap by 30%, the productivity of the cleaning process of grain heap, by 20% and reduce grain loss by 2%,

Claims (1)

SUMMARY OF THE INVENTION A device for processing and receiving a grain pile, including a thrower, a pneumatic separation chamber with grain inlet and outlet channels, an air supply channel and an impurity output channel in communication with a pneumatic separation chamber through windows provided in its side walls, a grain hopper in communication with the channel grain output, characterized in that, in order to increase efficiency, productivity and reduce losses during the processing of grain heaps, the device is equipped with an additional air supply channel, communicated e with the bottom of the hopper, the hopper is made of at least three sections of a trapezoidal cross-sectional shape, facing smaller base down, with a louvre bottom and side walls, separated by partitions with an elastic coating, pivotally fixed with the lower edge to the upper part of the section and installed with the possibility of changing the angle of inclination and height, moreover, the sections of the hopper are made with entrance windows located at their ends for the removal of grain with control flaps. 20 ft