SU820701A1 - Device for irradiation of grain - Google Patents

Description

I

The invention relates to agricultural machinery and can be used to irradiate grain during disinsection.

A device for irradiating grains, comprising an irradiation chamber with radiators and a reflector, is known. The grain in the irradiation chamber is moved using special transporting means 1.

The disadvantages of this device are the bulkiness and intensity of the irradiation chamber due to the presence of transporting means and the additional energy consumption for driving the transporting means.

A device for irradiating grains is also known, which includes a feeder with a metering orifice and an irradiation chamber with radiators and reflectors. The emitters are located vertically on a cylindrical. camera surface, and the irradiated grain comes from the metering hole of the feeder located on top of chamber 2.. The disadvantage of this device is the uneven grain processing, so. as a grain located in the center of a cylindrical stream, it is irradiated considerably ate-.

bee than grain at the edge of the stream. In addition, in this device, it is not possible to vary the radiation dose by switching off several emitters without disturbing the uniformity of grain irradiation.

The purpose of the invention is to improve the uniformity of grain processing.

This goal is achieved by making the camera in the form of a rectangular parallelepiped, the location of the emitters on two opposite side walls, and

0 also by performing a metering opening in the form of a slit and a horizontal and parallel arrangement of emitters and a slit.

FIG. 1 shows a grain irradiation device, side view; in fig. 2 - the same, front view; in fig. 3 - the same view

5 above.

The device comprises a feeder 1 with a metering opening 2 and an irradiation chamber 3. The irradiation chamber is made in the form of a rectangular parallelepiped with heat insulated walls 4 and 5. On the walls 4 there are fixed tubular radiators 6 with parabolic mirror reflectors 7. The slit 2 is parallel to the radiators 6. Along the bottom of the reflector 7 along the axis of the tubular radiator in the walls of the chamber A slit hole 8 is provided, communicating with the central air channel 9 via branches 10.

A device for irradiating grain works as follows.

The grain to be treated is supplied to the feeder 1, from where, through the slit 2, in the form of a stream with a thickness of 1-2 grains enters the irradiation chamber 3. The span of the camera between the radiators 6 under the action of gravity, the grain is irradiated.

To protect the radiators from dust, the air flow directed to the central channel 9 from the fan installation is distributed through separate channels 10 and, washing each radiator 6, creates an overpressure that prevents dust from entering them.

To reduce the radiation dose, one or several pairs of emitters 6 located on opposite walls 4 opposite each other are switched off. In this case, the irradiation uniformity does not change.

The use of the invention will allow uniform grain processing.

and also to change doses of radiation with preservation of uniformity of radiation.

Claims (2)

1. The use of electricity in agricultural production. Directory by ed. P. N. Listova, M., 1974, p. 516-517 2. USSR author's certificate No. 401305, cl. A 01 C 1/00 1971 (prototype).