RU2411432C1 - Grain drying device - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: grain drying device includes jacket of rectangular section, surface of which is coated with a layer of heat insulation material, loading hopper, discharge window, transporting working element installed inside jacket, arranged in the form of continuous chain with scrapers, heating elements arranged between loading hopper and discharge window, and also cooling device, comprising fan and air duct. Air duct of cooling device is connected to jacket at equal distance from loading hopper and discharge window. Jacket is made with rectangular section, and a plate is installed inside in a horizontal manner. Transporting working element is arranged in the form of continuous chain with scrapers. At lower side of plate there are heating elements, besides, upper branch of chain with scrapers rests against plate.

EFFECT: application of this device makes it possible to efficiency of grain drying process and to improve quality of finished product.

1 dwg

Description

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

A device for drying grain [1] is known, comprising a cylindrical casing, a loading hopper, an unloading window, a transporting working element coaxially mounted inside the casing for rotation, heating elements and a cooling device, which consists of a fan and an air duct connected to the internal cavity of the casing unloading window. 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. In this case, 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.

The known device has disadvantages, which include design complexity and low productivity.

The purpose of the invention is to simplify the design and increase the productivity of the device.

This goal is achieved by the fact that the casing is of rectangular cross-section. The transporting working body is made in the form of an endless chain with scrapers, a plate is installed horizontally inside the casing, on the lower side of which there are heating elements, and the upper branch of the chain with scrapers rests on the plate. The air duct of the cooling device is connected to the casing at an equal distance from the loading hopper and the discharge window.

The drawing shows a General view of the device.

The device for drying grain consists of a casing of rectangular cross section 1, covered with a layer of heat insulating material 2, a loading hopper 3, an unloading window 4, installed inside the casing of the transporting working body 5, heating elements 6, and also a cooling device consisting of a fan 7 and an air duct 8. The air duct of the cooling device is connected to the casing at an equal distance from the loading hopper and the discharge window. The transporting working body 5 is made in the form of an endless chain with scrapers. The heating elements 6 are placed between the loading hopper 3 and the discharge window 4. Inside the casing 1, a plate 9 is horizontally mounted. The heating elements 6 are located on the lower side of the plate 9, and the upper chain branch with scrapers rests on the plate 9.

The device operates as follows. Turn on the heating elements 6. After reaching the required temperature, the plate 9 feeds grain into the loading hopper 3, from where it enters the plate 9, which moves the transporting working body 5 to the discharge window 4. In contact with the heated surface of the plate 9, the grain also heats up, loses excess moisture, which in the form of steam is sucked out through the duct 8 by the fan 7. Dry grain is removed from the device through the discharge window 4.

Simplification of the design of the device and increasing its productivity is achieved by manufacturing a casing of rectangular cross section and placement inside the casing of a transporting working body, made in the form of an endless chain with scrapers. Moreover, productivity increases with increasing width of the device and the height of the scrapers. The required temperature for heating the grain is provided when moving with a given grain speed the upper chain branch with scrapers along a plate horizontally installed inside the casing. In turn, the required heating temperature of the plate is provided by the heating elements located on its lower side. The connection of the duct of the cooling device with the casing at an equal distance from the loading hopper and the discharge window allows you to achieve uniform blowing of the moving grain with air, providing the necessary drying quality with high productivity of the device.

Information sources

1. Device for drying grain. - Patent RU 2323580. - Publ. 05/10/2008, Bull. No. 13.

Claims (1)

A device for drying grain containing a casing, the surface of which is covered with a layer of heat insulating material, a transporting working element installed inside the casing, a loading hopper, an unloading window, heating elements located between the loading hopper and the unloading window, as well as a cooling device consisting of a fan and an air duct, characterized in that the casing is made of rectangular cross section, the transporting working body is made in the form of an endless chain with scrapers, horizontally installed inside the casing plate on the lower side which are arranged heating elements, the upper branch of the chain with scrapers rests on the plate, and the duct of the cooling device is connected to the casing at an equal distance from the feed hopper and unloading window.