RU2723582C1 - Device for grain drying - Google Patents

Abstract

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to agricultural machine building, particularly to grain drying devices. Proposed device comprises vertically installed cylindrical casing with outer surface coated with heat-insulating material layer, loading hopper, unloading opening, heating element and transporting working element coaxially installed inside casing with possibility of rotation. Conveying working element is made in the form of a flat spring, on which a perforated plate of a round shape is rigidly connected to it and equipped with a drive. Conveying working element is multi-sectional. Sections are arranged above each other so that flat springs located in underlying sections are installed with minimum clearance between their upper edge and lower edge of heating element of upper section. Branch pipe is arranged between odd and even sections in casing center. Perforated rings are installed above heating elements. Plate of round shape made of heat-conducting material is installed between transporting working element and heating element of lower section.

EFFECT: invention usage will allow to reduce duration of grain drying process.

1 cl, 2 dwg

Description

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

A device for drying grain [Device for drying grain. - Patent RU No. 167410. - Publ. 01/10/2017, Bull. No. 1], containing a vertical cylindrical casing, the outer surface of which is covered with a layer of heat-insulating material, a loading hopper, an unloading window, coaxially mounted inside the casing with the possibility of rotation transporting the working body and the heating element. The transporting working body is made in the form of a flat spring. A round perforated plate rigidly connected to it and equipped with a drive is mounted on a flat spring. The heating element is located under the transporting working body and is made in the form of a flat ring.

The known device has the disadvantage of a long duration of the drying process, due to the lack of grain cooling operation upon exiting the device, which is required when re-drying the grain in case of increased initial moisture and the need for repeated passage through the device.

The technical result achieved by using the invention is to reduce the duration of the drying process of grain.

The technical result is achieved by the fact that the transporting working body is multisectional. The sections are arranged one above the other so that the flat springs located in the underlying sections are installed with a minimum clearance between their upper edge and the lower edge of the heating element of the upper section. Between the odd and even sections in the center of the casing establish a pipe. Perforated rings are mounted above the heating elements. Between the transporting working body and the heating element of the lower section, a round plate is installed, which is made of heat-conducting material.

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

The device for drying grain includes a vertically mounted cylindrical 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 transporting working member 5 coaxially mounted inside the casing rotatably, made in the form of a flat spring on which is rigidly connected with it and equipped with a drive, a perforated plate 6 of a round shape and a heating element 7. The transporting working body 5 is made multi-section. The sections are arranged one above the other in such a way that the flat springs located in the underlying sections are installed with a minimum clearance between their upper edge and the lower edge of the heating element 7 of the upper section. A pipe 8 is installed between the sections in the center of the casing 1. Perforated rings 9 are installed above the heating elements 7. A round plate 10 made of heat-conducting material is installed between the transporting working element 5 and the heating element 7 of the lower section.

The device operates as follows. Turn on the heating element 7. After the surface of the heating element 7 reaches the required temperature, turn on the drive (not shown in Fig.), Which starts to rotate the perforated plate 6 of a round shape, and with it the transporting working member 5. Then the grain is fed into loading hopper 3. The grain that is poured from the loading hopper 3 is captured by a coil of the transporting working body 5, and then it is moved by the rotating transporting working body 5 to the discharge pipe 8. Contacting the heated surface of the perforated ring 9, the grain also heats up and loses excess moisture. Then, the heated grain from the first section of the transporting working body 5 through the nozzle 8 enters the second section of the transporting working body 5. Here, the grain is reheated from the heated surface of the perforated ring 9 or from the heated surface of the round plate 10 (in the case of a two-section device) during movement using a rotating transporting working body 5. Dry grain is removed from the device through the discharge window 4.

When using grain of another culture, the heating temperature of the surfaces of the sections of the transporting working body 5 is changed using the heating elements 7, the rotation frequency of the transporting working body 5 is changed.

Performing a transporting working body in multi-sections, arranging sections one above the other, installing a flat spring located in the lower section, with a minimum clearance between their upper edge and the lower edge of the heating element of the upper section, installing between the odd and even sections in the center of the pipe casing, installing over the heating elements of perforated rings, as well as the installation between the transporting working body and the heating element of the lower section of the round plate made of heat-conducting material, reduces the duration of the drying process of grain with its increased initial humidity without the need for repeated passage through the device.

Claims (1)

A device for drying grain, including a vertically mounted cylindrical casing, the outer surface of which is covered with a layer of heat insulating material, a loading hopper, an unloading window, a transporting working element coaxially mounted inside the casing, rotatable, made in the form of a flat spring on which is rigidly connected to it and a perforated round plate equipped with a drive, a heating element, characterized in that the conveying working element is multisectional with the sections arranged one above the other so that the flat springs located in the underlying sections are installed with a minimum clearance between their upper edge and the lower edge of the heating element the upper section, between the odd and even sections in the center of the casing a pipe is installed, perforated rings are installed above the heating elements, and a plate is installed between the transporting working body and the heating element of the lower section round shape made of heat-conducting material.

Images