RU184961U1 - DEVICE FOR GRAIN DRYING - Google Patents

Abstract

The utility model relates to agricultural engineering, in particular to devices for drying grain. A device for drying grain includes a cylindrical casing covered with heat insulating material, a loading hopper, an unloading window mounted inside the casing with the possibility of rotation, transporting a working body, made in the form of a screw, as well as heating elements located on the outer surface of the casing under a layer of heat-insulating material. The turns of the screw are connected by rods that are installed parallel to the shaft of the screw. The rods are arranged around the circumference at equal angles and at different distances from the screw shaft. 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 2323580. - Publ. 05/10/2008, Bull. No. 13], comprising a cylindrical casing, a loading hopper, an unloading window, transporting a working body coaxially mounted inside the casing with the possibility of rotation, as well as heating elements. The outer surface of the casing is covered with a layer of heat-insulating material. The transporting working body is made in the form of a screw with perforated turns, the diameter of the perforation does not exceed the minimum grain size. The casing is made integral, and its components are divided among themselves by rings made of heat-insulating material. Heating elements are placed on the outer surface of the casing under a layer of heat-insulating material between the loading hopper and the discharge window with the possibility of individually controlling the heating temperature of each of the sections of the casing. Each component of the casing is equipped with an individual heating element, and the end surface of the casing from the side of the loading hopper is perforated. In addition, the device contains a fan and duct connected to the inner cavity of the casing.

The known device has the disadvantage of low quality grain drying.

The technical result is an increase in the quality of drying grain.

The technical result is achieved by connecting the screw turns with rods that are installed parallel to the screw shaft. The rods are arranged around the circumference at equal angles and at different distances from the screw shaft.

In FIG. 1 shows a General view of the device; in FIG. 2 - section along the line aa.

The device for drying grain consists of a cylindrical casing 1, covered with heat-insulating material 2, a loading hopper 3, an unloading window 4, mounted inside the casing 1 with the possibility of rotation of the transporting working body 5, made in the form of a screw, as well as heating elements 6 placed on the outer surface casing 1 under a layer of heat-insulating material 2. The turns of the screw are connected by rods 7, which are installed parallel to the shaft of the screw. The rods 7 are located around the circumference through equal angles and at different distances from the screw shaft.

The device operates as follows. The heating elements 6 are turned on and the drive (not shown in FIG.) Of the transporting working member 5. After reaching the required temperature of the casing 1, grain is fed into the loading hopper 3. The grain is captured by a screw from the loading hopper 3 and, heating, moves it along the inner surface of the casing 1 to discharge window 4, losing moisture. During rotation, the auger pushes the grain toward the discharge window 4, and the rods 7, mounted parallel to the auger shaft, connecting the turns of the auger and arranged circumferentially at equal angles and at different distances from the auger shaft, constantly mix the grain layers. Due to this, the uniformity of grain heating is increased and the possibility of overheating of individual grains is eliminated. Dry grain is removed from the device through the discharge window 4.

The connection of the screw turns with rods installed parallel to the screw shaft, the location of the rods around the circumference at equal angles and at different distances from the screw shaft - all this ensures high quality of drying due to better mixing of the grain, which improves the uniformity of its heating when moving from the loading hopper to the unloading to the window.

Claims (1)

A device for drying grain containing a cylindrical casing coated with a heat insulating material, a loading hopper, an unloading window mounted inside the casing with the possibility of rotation transporting the working body, made in the form of a screw, as well as heating elements placed on the outer surface of the casing under a layer of heat insulating material, characterized the fact that the turns of the screw are connected by rods that are installed parallel to the shaft of the screw, and the rods are located around the circumference at equal angles and at different distances s of the screw shaft.

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