RU2585346C1 - Grain drying device - Google Patents

Abstract

FIELD: agriculture; machine building.

SUBSTANCE: apparatus for drying grain comprises a casing whose surface is covered with a layer of insulating material mounted within a casing conveying working member hopper unloading window heating elements, arranged between the hopper and unloading window as well as a fan and the duct. Casing is made of rectangular cross section. Conveying actuator is designed as an endless chain with scrapers and agitators. Scrapers are in the form of rectangular plates which are mounted equidistant from each other and parallel to each other. Agitators are designed as shafts with paddles and scrapers are mounted between the rotatable and perpendicular to the direction of conveying movement of the working body. Inside the housing a plate is installed horizontally with the bottom side of which there are heating elements. Upper branch of the chain with scrapers rests on a plate, the lower edge of the blade agitators touches the plate. Duct mounted over the plate between the hopper and unloading window at an equal distance from them.

EFFECT: improving the quality of the finished product.

1 cl, 1 dwg

Description

The invention relates to agricultural machinery, in particular to a device 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, 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 behind the 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 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.

The known device has disadvantages, which include design complexity and uneven heating of grain.

The technical result is an improvement in the quality of the finished product.

The claimed technical result is achieved due to the fact that in the device for drying grain the casing is made of rectangular cross-section. The transporting working body is performed in the form of an endless chain with scrapers and tedders. Scrapers are made in the form of rectangular plates, which are installed at an equal distance from each other and parallel to each other. Tedders are made in the form of shafts with blades and installed between the scrapers with the possibility of rotation and perpendicular to the direction of movement of the transporting working body. Inside the casing, a plate is installed horizontally, on the lower side of which a heating element is installed. The upper branch of the chain with scrapers is carried out resting on the plate, and the lower edge of the tedder blades is in contact with the surface of the plate. An air duct is installed above the plate between the loading hopper and the discharge window at an equal distance from them.

In FIG. 1 shows a General view of the device.

The device for drying grain consists of a casing 1 of rectangular cross section, covered with a layer of heat insulating material 2, a loading hopper 3, an unloading window 4 installed inside the casing 1 of the transporting working body 5, heating elements 6, as well as a fan 7 and an air duct 8. Inside the casing, horizontally installed plate 9. Heating elements 6 are installed on the lower side of the plate 9. The transporting working body 5 is made in the form of an endless chain with scrapers 10 and agitators 11, and the scrapers 10 are made in the form of pit of angular plates. The scrapers 10 are located parallel to each other at an equal distance from each other. Tedders 11 are made in the form of shafts with blades and are installed between the scrapers 10 with the possibility of rotation and perpendicular to the direction of movement of the transporting working body 5. Heating elements 6 are placed between the loading hopper 3 and the discharge window 4. The upper chain branch with scrapers 10 is made resting on the plate 9. The lower edge of the tedder blades is made in contact with the surface of 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 that is blown out by the fan 7 through the duct 8, the discharge window 4 and the loading hopper 3. Dry grain is removed from the device through the discharge window 4.

When moving the transporting working body 5, due to the contact of the lower edge of the blades of the agitators with the surface of the plate 9, the shafts 11 with the blades installed between the scrapers 10 also rotate, and the blades capture and mix the layers of grain, which ensures its movement along the width of the plate 9, rotation grain around its axis when moving along the plate 9 and its uniform heating. The required temperature for heating the grain is provided when the grain is moved by the upper chain branch with scrapers at a predetermined speed along the plate 9 horizontally installed inside the casing 1. In turn, the heating elements 6 located on its lower side provide the heating temperature of the plate 9.

Improving the quality of the finished product is achieved through the manufacture of 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. The scrapers are made in the form of rectangular plates, which are located at an equal distance from each other and parallel to each other, which ensures uniform intake of grain from the loading hopper. Between the scrapers with the possibility of rotation and perpendicular to the direction of movement of the transporting working body mounted tedders made in the form of shafts with blades, which, in contact with the surface of the plate, also rotate, capturing and mixing layers of grain. This ensures the movement of grain along the width of the plate, its rotation around its axis when moving along the plate and uniform heating.

The location of the duct above the plate at an equal distance from the loading hopper and the discharge window also improves the quality of drying due to better removal of evaporated moisture from 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 transporting working element installed inside the casing, a loading hopper, an unloading window, heating elements located between the loading hopper and the unloading window, and a fan and duct, characterized in that the casing made of rectangular cross section, the transporting working body is made in the form of an endless chain with scrapers and tedders, and the scrapers are made in the form of rectangular plates, which mounted at equal distances from each other and parallel to each other, and the tedders are made in the form of shafts with blades and installed between the scrapers with the possibility of rotation perpendicular to the direction of movement of the transporting working body, a plate is installed horizontally inside the casing, on the lower side of which there are heating elements, the upper branch the chain with scrapers rests on the plate, and the lower edge of the agitator blades is in contact with the surface of the plate, and the duct is installed above the plate between gruzochnym hopper and unloading window at an equal distance from them.

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