RU149117U1 - DEVICE FOR GRAIN DRYING - Google Patents

Abstract

A device for drying grain containing a section including a 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, a transporting working element made in the form of a screw, heating elements placed on the outer surface of the casing under a layer of heat-insulating material between the feed hopper and the discharge window, as well as a fan and duct, characterized in that it is made of multisection moreover, the sections are mounted on the frame parallel to each other in a vertical plane, the loading hopper is connected to the loading windows of the upper sections, the discharge windows of the upper sections are connected to the loading windows of the lower sections, the discharge windows of the lower sections are located above the discharge hopper, and the duct is connected to the discharge windows, whose walls are perforated with a perforation diameter not exceeding the minimum grain size.

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 unloading 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 includes a cooling device, which consists of a fan and an air duct connected to the inner cavity of the casing behind the discharge window.

The known device has the disadvantage of low throughput when drying grain.

The objective of the utility model is to increase the throughput of the grain drying process.

The technical result is achieved due to the fact that the device for drying grain is multi-sectional. Sections are mounted on the frame parallel to each other in a vertical plane. The loading hopper is connected to the loading windows of the upper sections. The unloading windows of the upper sections are connected to the loading windows of the lower section. The discharge windows of the lower sections are located above the discharge hopper. The air duct is connected to the discharge windows, the walls of which are perforated with a perforation diameter not exceeding the minimum grain size.

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

The device for drying grain contains sections, each of which includes a cylindrical casing 1, the outer surface of which is covered with a layer of heat-insulating material 2, a loading hopper 3, an unloading window 4, coaxially mounted inside the casing rotatably transporting the working body 5, made in the form of a screw . The loading hopper 3 is located above the loading windows 6 of the upper sections. On the outer surface of the casing 1 under the layer of heat-insulating material 2 between the loading window 6 and the unloading window 4 there are heating elements 7. The device for drying grain also includes a fan 8 and an air duct 9. The sections are mounted on the frame 10 and are parallel to each other in a vertical plane. The unloading windows 4 of the upper sections are connected to the loading windows 6 of the lower section. Unloading windows 4 of the lower sections are located above the unloading hopper 11. The air duct is connected to the unloading windows. The walls 12 of the discharge windows 4 are perforated with a perforation diameter not exceeding the minimum grain size.

The device operates as follows. Turn on the heating elements 7 of each section of the device. After reaching the required temperature of the casings 1 feed grain into the feed hopper 3 of the upper sections, from where it enters the transporting working body 5 and moves it to the discharge window 4 of each section. At the same time turn on fan 8. In contact with the heated surface of the casing 1, the grain also heats up, loses excess moisture. The fan 8 supplies the air flow through the duct 9 to the discharge windows of the 4 sections, while cooling the grain and removing moisture in the form of steam through the walls 12 of the discharge windows 4 and the discharge hopper 11. The cooled and dried grain is removed through the discharge hopper 11.

The implementation of the device is multi-sectional, placing the sections on the frame and placing them parallel to each other in a vertical plane, the location of the loading hopper with the loading windows of the upper sections, the connection of the upper sections with the loading windows of the lower section, the location of the discharge windows of the lower sections above the discharge hopper, the connection of the duct with the discharge windows the implementation of the walls of the discharge windows perforated with a perforation diameter not exceeding the minimum grain size provides an increase in throughput the process of drying the grain. This is due to the fact that grain of any initial moisture content can be dried in one pass through the device.

Claims (1)

A device for drying grain containing a section including a 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, a transporting working element made in the form of a screw, heating elements placed on the outer surface of the casing under a layer of heat-insulating material between the feed hopper and the discharge window, as well as a fan and duct, characterized in that it is made of multisection moreover, the sections are mounted on the frame parallel to each other in a vertical plane, the loading hopper is connected to the loading windows of the upper sections, the discharge windows of the upper sections are connected to the loading windows of the lower sections, the discharge windows of the lower sections are located above the discharge hopper, and the duct is connected to the discharge windows, whose walls are perforated with a perforation diameter not exceeding the minimum grain size.

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