RU172219U1 - 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 rectangular casing, heat-insulating material, a loading hopper, an unloading window, a transporting working element installed inside the casing, and heating elements. The transporting working body is made in the form of a flexible tape of heat-conducting material. A plate of heat-conducting material is installed on the lower side of the upper portion of the flexible tape. Heating elements are placed on the underside of the plate. On the inner upper side of the casing from the feed hopper to the discharge window, perpendicular to the upper surface of the flexible tape installed flow dividers. The flow dividers are made of two rectangular plates mounted vertically and interconnected in such a way that they form a sharp angle in plan, the top of which is directed opposite to the direction of movement of the flexible tape. The flow dividers are installed with a minimum gap between their lower ends and the outer surface of the upper branch of the flexible tape. The grain drying quality 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, a transporting working element coaxially mounted inside the casing with the possibility of rotation, heating elements, a fan and an air duct. 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, and 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. The fan is connected by an air duct, with the internal cavity of the casing behind the discharge window.

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

The technical result achieved by using the utility model is to increase the quality of grain drying.

The technical result is achieved due to the fact that the transporting working body is performed in the form of a flexible tape of heat-conducting material. A plate made of heat-conducting material is mounted on the lower side of the upper portion of the flexible tape. Heating elements are placed on the underside of the plate. On the inner upper side of the casing from the feed hopper to the discharge window, perpendicular to the upper surface of the flexible tape set flow dividers. Flow dividers are made of two rectangular plates. Rectangular plates are installed vertically and interconnected so that they form a sharp angle in plan, the top of which is directed opposite to the direction of movement of the flexible tape. Flow dividers are installed with a minimum gap between their lower ends and the outer surface of the upper branch of the flexible tape.

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

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, coaxially mounted inside the casing 1 of the transporting working body 5, heating elements 6. The transporting working body 5 is made in the form of a flexible tape of heat-conducting material. A plate 7 made of heat-conducting material is installed on the lower side of the upper portion of the flexible tape. Heating elements 6 are placed on the lower side of the plate 7. On the inner upper side of the casing 1 from the feed hopper 3 to the discharge window 4, flow dividers 8 are installed perpendicular to the upper surface of the flexible tape. Flow dividers 8 are made of two rectangular plates mounted vertically and interconnected so that they form an acute angle in the plan, the apex of which is directed opposite to the direction of movement of the flexible tape. The flow dividers 8 are installed with a minimum gap between their lower ends and the outer surface of the upper branch of the flexible tape.

The device operates as follows. Turn on the heating elements 5. After reaching the required temperature of the flexible tape 5, turn on the drive (in Fig. Not shown) of the transporting working body and feed grain into the loading hopper 3, from where it is transported by the transporting working body in the direction of the discharge window 4. Contacting with the heated surface of the flexible tape 5, which is made of a heat-conducting material, the grain also heats up and loses excess moisture. Further, the grain moved by the flexible tape 5, meets during its movement with the flow dividers 8, which are made of two rectangular plates mounted vertically and interconnected so that they form a sharp angle in plan, the top of which is directed opposite to the direction of movement of the flexible tape, moreover, the flow dividers 8 are installed from the loading hopper 3 to the discharge window 4 with a minimum gap between their lower ends and the outer surface of the upper branch of the flexible tape 5. In this case, the grain moving s to unloading window simultaneously moves along the outer surface of the separator, whereby shifting the flexible strip of width 5 and stirred. In this case, moisture in the form of steam is removed from the grain. Dry grain is removed from the device through the discharge window 4.

The implementation of the transporting working body in the form of a flexible tape of heat-conducting material, installation on the lower side of the upper portion of the flexible strip of the plate made of heat-conducting material, placement of heating elements on the lower side of the plate, installation on the inner upper side of the casing from the hopper to the discharge window, perpendicular to the upper the surface of a flexible tape of flow dividers made of two rectangular plates mounted vertically and interconnected in such an image so that they form an acute angle in plan, the apex of which is directed opposite to the direction of movement of the flexible tape, the installation of flow dividers with a minimum gap between their lower ends and the outer surface of the upper branch of the flexible tape - all this ensures quick and uniform heating of grain with constant stirring, which improves the quality of drying.

Claims (1)

A device for drying grain containing a casing of rectangular cross section, covered with a layer of heat insulating material, a loading hopper, an unloading window, a transporting working element coaxially mounted inside the casing, heating elements, characterized in that the transporting working body is made in the form of a flexible tape of heat-conducting material, with the bottom a plate made of heat-conducting material is installed on the side of the upper portion of the flexible tape, heating elements are placed on the bottom side of the plate, on the inside flow dividers are installed on the upper side of the casing from the loading hopper to the discharge window, perpendicular to the upper surface of the flexible tape, made of two rectangular plates mounted vertically and interconnected in such a way that they form an acute angle in plan, the top of which is opposite to the direction of movement of the flexible tape, and the flow dividers are installed with a minimum gap between their lower ends and the outer surface of the upper branches of the flexible tape.

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