RU181622U1 - DEVICE FOR GRAIN DRYING - Google Patents

Abstract

The utility model relates to agricultural machinery, in particular to devices for drying grain. A device for drying grain contains a casing of rectangular cross section, the outer surface of which is covered with a layer of heat-insulating material, a loading hopper, an unloading window, heating elements, a fan, an air duct, and a transporting working body made in the form of a box with a stepped surface and the ability to communicate oscillations to it. The transporting working body is made multi-sectional, and the sections are arranged sequentially one after another so that each subsequent section is set lower than the previous one. Between the sections there is a pitched board made perforated, with the possibility of adjusting the angle of its inclination. An air duct is installed on the underside of the ramp board. Technical result: the quality of grain drying is improved. The upper part of the casing located above the pitched board is perforated. The size of the holes of the ramp does not exceed the minimum grain size. Technical result: the quality of grain drying is improved.

Description

The utility model relates to agricultural machinery, in particular to devices for drying grain.

A device for drying grain [Device for drying grain. - Patent RU 174687. - Publ. 10/26/2017, Bull. No. 30] comprising a rectangular casing, the surface of which is covered with a layer of heat insulating material, a loading hopper, an unloading window, heating elements, a fan, an air duct, as well as a transporting working element installed inside the casing. The transporting working body is made in the form of a box and is installed with the possibility of informing him of vibrations. The upper surface of the box is made stepped from heat-conducting material. Holes are made on the side surfaces of the steps. Heaters are installed on the underside of the steps. The duct is connected to the inner cavity of the duct. Heating elements are installed in the duct.

The known device has the disadvantage of low drying quality, which consists in the absence of grain cooling operation during unloading from the dryer, which requires repeated drying of the grain with its increased initial moisture content and the need for repeated passage through the device.

The technical result achieved by using the utility model is improving the quality of grain drying.

The technical result is achieved by the fact that the transporting working body is multi-sectional. Sections are set sequentially one after another so that each subsequent section is set lower than the previous one. Between the sections, a pitched board is installed, which is perforated with the possibility of adjusting the angle of its inclination. An air duct is installed on the underside of the ramp board. The upper part of the casing, located above the pitched board, is perforated, and the size of the holes of the pitched board is taken not exceeding the minimum grain size.

In FIG. 1 shows a general view of the device, and in FIG. 2 - the same, top view.

The device for drying grain includes a casing 1, the surface of which is covered with a layer of heat-insulating material 2, a loading hopper 3, an unloading window 4, a heating element 5, a fan 6, an air duct 7 and a transporting working element 8 installed inside the casing 1, made in the form of a box with a stepped surface and the possibility of telling him hesitation. The transporting working body 8 is made multi-sectional, and the sections are arranged sequentially one after another so that each subsequent section is set lower than the previous one. Between the sections of the transporting working body 8, a pitched board 9 is installed, made perforated, with the possibility of adjusting the angle of its inclination. The angle of inclination of the ramp board 9 is changed by moving the rear of the ramp board 9 up or down relative to the hinge installed on the front of the ramp board along the plate 10 with holes installed inside the casing 1. An air duct 7 is installed from the bottom of the ramp 9. The upper part of the casing 1 located above the ramp board 9, made perforated. The size of the holes of the ramp board 9 does not exceed the minimum grain size. The transporting working body 8 is equipped with a drive 11.

The device operates as follows. Turn on the heating elements 5 of the device. After reaching the required temperature of the surfaces of the sections of the transporting working body 8, turn on its drive 11. At the same time, turn on the fan 6. Then grain is fed into the loading hopper 3, from where it is discharged to the first section of the transporting working body 8 and is moved to the side of the discharge window 4. Contacting with heated the surface of the first section of the transporting working body 8, the grain also heats up, loses excess moisture. Then the heated grain from the first section of the transporting working body 8 falls onto the ramp board 9. Moving along the ramp board 9, the grain loses some moisture when it is cooled by the air flow created by the fan 6 and directed into the duct 7. The air flow passes through the layer located on the ramp grain board 9 to the upper perforated part of the casing 1, through which moistened air is removed to the outside. Cooled and partially dried grain enters the heated surface of the second section of the transporting working body 8, where it is reheated during movement in the direction of the discharge window 4. At the same time, the grain is dried to normal humidity and is removed from the device through the discharge window 4 at the end of the last drying cycle.

When using grain of another culture, the temperature of the heating surfaces of the ducts of the sections of the transporting working body 8 is changed using the heating elements 5, the frequency and (or) the amplitude of the vibrations of the sections of the transporting working body 8 are changed, and the air flow in the duct 7 is reduced or increased, changing the speed fan 6.

The implementation of the transporting working body is multi-sectional, the arrangement of sections sequentially one after another so that each subsequent section is set lower than the previous one, the location between the sections of the perforated ramp board, made with the possibility of adjusting the angle of its inclination, the location of the duct from the bottom of the ramp, as well as the top the part of the casing located above the ramp, perforated with a hole size not exceeding the minimum grain size, provides the required the quality of drying grain with its increased initial moisture content without the need for repeated passage through the device.

Claims (1)

A device for drying grain containing a casing, the surface of which is covered with a layer of heat insulating material, a loading hopper, an unloading window, heating elements, a fan, an air duct, a transporting working element installed inside the casing, made in the form of a box with a stepped surface and the possibility of conveying vibrations to it, characterized in that the transporting working body is made multi-sectional, and the sections are arranged sequentially one after another so that each subsequent section is set is lower than the previous one, a pitched board is installed between the sections, made perforated, with the possibility of adjusting the angle of its inclination, an air duct is installed on the bottom side of the pitched board, the upper part of the casing located above the pitched board is perforated, and the hole size of the pitched board does not exceed the minimum grain size .

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