JPS6032012Y2 - Moisture content sample extraction device for grain drying equipment - Google Patents

Description

[Detailed description of the invention] The present invention is designed to control the operation of a grain drying device based on the moisture content of the grains being dried by the device. The present invention relates to an improvement in a measurement sample take-out device installed in a grain drying device so as to feed the sample to a measuring device.

The purpose of the present invention is to provide a measurement sample extraction device for sampling grains during the drying process without impairing the function of the grain drying device and while ensuring that grains are sampled. The object of the present invention is to be able to be fixedly attached to the body of the grain drying device so that sampling can be performed automatically at a desired time.

The device of the present invention for achieving this purpose is a grain drying device which is equipped with a grain drying device for feeding grains into a grain tank. A small outlet for taking out the sample is provided at the part exposed to the outside at the lower part of the side, where the grains thrown up by the circulation of the packet collide, and an operating mechanism activated by excitation is provided at the outlet. It is equipped with an opening/closing lid that can be automatically opened and closed, and a sample collection box and a moisture content measuring device communicating with the sample collection box are integrally mounted on the outer surface of the machine wall outside the opening/closing lid. This feature is characterized by:

To explain the embodiment in more detail with reference to the drawings, as shown in FIG. 1, paddy (grain) to be dried is loaded into a grain tank 1 by an elevator 2 (packet elevator) attached thereto. The paddy is circulated and flowed by the elevator 2 and the grain discharge screw conveyor (not shown) provided at the bottom of the grain tank 1, while being circulated through a blower 3 (in this example, a suction type). In the conventionally known circulation type grain drying device A, which supplies and dries drying air by operating a burner device 4, the above-mentioned grain drying device A is provided so that grains are loaded into the grain tank 1 thereof. At the lower part of the plate wall 22 of the elevator 2 on the side of the grain lifting process where the packet 21 goes up, there is a part for sampling grains that is collided with the grains that are splashed up when the packet 21 scoops up the grains. A small outlet 5 is provided as shown in FIG. 2, and the outlet is provided with an opening/closing lid 51 that can be opened and closed by an actuating mechanism activated by excitation, and on the outside of the opening/closing lid 51, A moisture content measuring device 6 communicating with a sample collection box 52 and an outlet 53 of the sample collection box 52
They are assembled and mounted integrally on the plate wall 22.

The moisture content measuring device 6 in this embodiment has a pair of crushing rolls 62 and 63 that are driven and rotated by a motor 61 and is supported by a pair of left and right opposite electric contacts. It is configured so that the electrical resistance of the grains intervening in the opposing gap between the crushing rolls 62 and 63 can be detected, and the moisture content can be measured by detecting the electrical resistance. A signal resulting from the detected change in electrical resistance is sent to a control unit 7 provided separately on the outside of the grain tank 1, and the control unit 7 controls the air blower 3 and burner device 4 of the grain drying device A.
, the packet elevator 2, and the discharge screw conveyor.

Note that 8 is a control box for controlling each of the above-mentioned parts.

Further, an operating mechanism 9 for causing the above-mentioned opening/closing lid 51 to open/close.
3, an operating rod 92 that raises the upper end of the opening/closing lid 51 and opens the opening/closing lid 51 as shown by the chain line in FIG. The solenoid 91 is composed of a spring 93 and the like, and the solenoid 91 is a timer (
(not shown), it operates for a certain period of time (usually about 1 minute) at preset intervals.

These operating mechanism 9 and water content measuring device 6 are surrounded by a machine casing 10 mounted on the outer surface of the plate wall 22, and furthermore, at the bottom of the machine casing 10, crushing rolls 62 and 63 are passed through a gap. A hopper 11 that receives the rice grains after the measurement is detachably attached.

Note that 64 and 65 are transmission gears. Next, to explain the operation and effect, the device for taking out the moisture content measurement data in the grain drying device according to the present invention is as described above, in the grain drying device A.
A part of the plate wall 22 of the elevator 2 (packet elevator) that is exposed to the outside at the lower part of the grain lifting process side where the packets 21 ascend, and is a part where the grains thrown up by the rotation of the packets 21 collide with each other. A small extraction port 5 for sample extraction is provided, and an opening/closing lid 51 that can be opened and closed by an actuating mechanism 9 activated by excitation is provided at the extraction opening 5. Since the sample collection box 52 and the moisture content measuring device 6 communicating with the sample collection box 52 are integrally assembled and mounted, the operation mechanism 9 can be activated at a desired time set in advance. When the opening/closing lid 51 is opened by operation, the packet 21
When the grains that are thrown up when scooping up the grains along with the lower end of the elevator 2 collide with the inner lower part of the plate wall 22, a part of the grains that collide with the plate wall 22. Through a small outlet 5, the sample jumps into a sample collection box 52 provided outside the outlet 5 and collects there.

When the actuating mechanism 9 is activated to close the opening/closing lid 51 by excitation after a predetermined time has elapsed, since the outlet 5 is small and open, grains that resist the movement of the opening/closing lid 51 to the closed position are removed. The pressure of the grains is extremely small, as only some of the grains that are bounced up by the packet 21 and collide with the plate wall 22 jump into this small outlet 5. As a result, the opening/closing lid 51 is reliably closed, and as a result, the grains heading toward the extraction port 5 collide and reflect on the opening/closing lid 51 and return to the bottom of the elevator 2, allowing a predetermined amount of grains to be removed. sampling will be performed reliably.

The grains reflected by the opening/closing lid 51 in this way do not disturb the flow of grains inside the elevator 2 because the take-out port 5 is small.
The outlet 5 provided in the elevator 2 does not weaken the strength of the elevator 2.

Furthermore, since the outlet 5 is provided in a part exposed to the outside of the plate wall 22, the sample collection box 52 and the moisture content measuring device 6 attached to the outside of the outlet 5 may impair the function of the elevator 2. It becomes possible to assemble and install it easily and easily.

Therefore, according to the present invention, the measurement sample taking device for sampling grains during the drying process can be used without impairing the function of the grain drying device and ensuring that a predetermined amount of grains can be sampled. The grain drying apparatus can be fixedly assembled to the body of the grain drying apparatus so that sampling can be carried out automatically at a desired time.

[Brief Description of the Drawings] Fig. 1 is a partially cutaway front view of an embodiment of the device of the present invention, Fig. 2 is a perspective view of the main parts of the same as seen from the back side, and Fig. 3 is a longitudinal cross-section of the main parts of the same. The front view and FIG. 4 are longitudinal sectional side views of the same. 1... Grain tank, 2... Packet elevator-121... Packet, 22... Board wall, 5... Outlet, 51. ...Opening/closing lid, 52... Sample collection box, 53... Outlet, 6... Moisture content measuring device.

Claims (1)

[Scope of utility model registration request] A portion of the plate wall of the packet elevator, in which the grain drying device is equipped for feeding grain into the grain tank, is exposed to the outside at the lower part of the grain lifting process side where the packets ascend. A small outlet for taking out the sample is provided at the part where the grains thrown up by the rotation collide, and the outlet is equipped with an opening/closing lid that can be automatically opened and closed by an actuating mechanism activated by excitation. A sample for measuring moisture content in a grain drying device, characterized in that a sample collection box and a moisture content measuring device communicating with the sample collection box are integrally assembled and mounted on the outer surface of the machine wall on the outside of the lid. extraction device.