RU73721U1 - DEVICE FOR WASHING AND REMOVING GRAIN - Google Patents

Abstract

The utility model relates to the processing industries of agricultural production, in particular, to devices for washing and removing external moisture from grain, for example, before grinding.

A device for washing and smoothing grain contains a housing, a rotor made in the form of a perforated drum resting on rollers, a sediment collector and located in the lower part of the rotor parallel to its axis with the possibility of rotation of the spiral, inside which the rod is mounted. The spiral is connected to the shaft with spokes radially and evenly mounted inside it. The body is mounted on height-adjustable racks with the possibility of fixing its position. A centrifugal nozzle is installed inside the rotor.

The quality of the process of removing external moisture from the grain improves and the manufacturability of the device increases.

Description

The utility model relates to the processing industries of agricultural production, in particular, to devices for washing and removing external moisture from grain, for example, before grinding.

A device for removing external moisture from grain [1], containing a housing, a rotor, a sediment collector and a spiral. The rotor is made in the form of a perforated drum resting on rollers. The spiral is located in the lower part of the rotor parallel to its axis with the possibility of rotation. A rod is installed inside the spiral. The rotor and spiral are equipped with a drive with the ability to independently change the frequency of their rotation.

The known device has disadvantages, which include the impossibility of combining the technological processes of washing and smoothing grain in it and the insufficient quality of removing external moisture from the grain.

The purpose of creating a utility model is to improve the quality of the process of removing external moisture from grain and increase the manufacturability of the device.

The goal is achieved by the fact that the casing is mounted on height-adjustable racks with the possibility of fixing its position, a centrifugal nozzle is installed inside the rotor, and the spiral is connected to the shaft with spokes radially and evenly mounted inside it.

Figure 1 shows a General view of the device for washing and smoothing grain, figure 2 is a section along A - A.

A device for washing and smoothing grain consists of a housing 1, a rotor 2, made in the form of a perforated drum, supported by rollers 3 from each end of it and driven into rotation by means of drive 4, loading chute 5, sediment collector 6, spiral 7 with a rod 8, the collection of dry grain 9. The housing 1 is mounted on a height-adjustable uprights 10 with the possibility of fixing its position using the stops 11. Inside the rotor 2 is installed

centrifugal nozzle 12. The spiral 7 is connected to the shaft 8 by spokes 13, which are installed radially and evenly inside it.

A device for washing and smoothing grain works as follows. The grain is fed through the loading chute 5 into the inner cavity of the rotor 2, which receives rotation from the drive 4. At the same time, the grain is treated with water supplied to it under pressure through a centrifugal nozzle 12, which is installed inside the rotor 2. The centrifugal force arising from the rotation of the rotor 2 presses the grain to the wall of the rotor 2. Moisture from the grain surface along with impurities leaves through perforation into the internal cavity of the housing 1 and flows through the sediment collector 6. By rotating spiral 7, the grain is evenly distributed along the inner surface the surface of the rotor 2 and gradually moves along it in the axial direction to the dry grain collector 9. The rod 8, connected to the spiral by spokes 13 radially and evenly mounted inside it, does not allow the spiral 7 to stretch and, due to friction forces, deviate in the direction of rotation of the rotor 2, providing uniformity of unloading of the finished product in the collection of dry grain 9.

The throughput of the device and the moisture content of the grain at the exit from it are regulated by an independent change in the frequency of rotation of the spiral 7 and (or) the frequency of rotation of the rotor 2, as well as by changing the location of the housing 1 with respect to the horizontal plane using height-adjustable racks 10 and fixing the housing 1 in the required stop position 11.

To improve the quality of washing and smoothing grain, the housing 1 is lifted from the collector of dry grain 9, and from the side of the loading chute 5 is lowered. In this case, the rotational speed of the rotor 2 is increased, and the spiral 7 is reduced.

This device makes it possible to simultaneously wash the grain and remove external moisture from its surface along with contaminants, allowing you to adjust the degree of efficiency of this process.

The connection of the spiral with the rod with knitting needles, which are installed radially and evenly inside it, ensures a constant gap between the spiral and the rotor and the friction forces that arise during operation. This improves the uniformity of grain unloading and, as a result, the quality of removing external moisture from the grain.

The source of information

1. Artemyev V.G., Kurdyumov V.I., Bogatov V.A., Murzaev F.F. A device for removing external moisture from grain. - Patent RU No. 2217670. - Publ. November 27, 2003, Bull. No. 33.

Claims (1)

A device for washing and smoothing grain containing a housing, a rotor made in the form of a perforated drum resting on rollers, a sediment collector and located in the lower part of the rotor parallel to its axis with the possibility of rotation of the spiral, inside which a rod is installed, characterized in that the housing is mounted on racks adjustable in height with the possibility of fixing its position, a centrifugal nozzle is installed inside the rotor, and the spiral is connected to the shaft by spokes radially and evenly installed inside it.