JPS591973A - Natural-ventilation cereal drier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an outdoor shell dryer, and in particular, the dryer is installed outdoors and automatically shuts down the shutter through a rain sensor and a humidity sensor during rain or high humidity. Concerning a natural draft grain dryer with closed operation.

Conventional outdoor shell dryers are constructed so that rice and wheat bundles are mounted on several tiers above and below on cylindrical supports, and rice and wheat ears can be hung freely around the periphery of these shelves. There is a dryer (Japanese Utility Model Publication No. 14542/1983) in which an air intake port is provided at the base of a support, a heat source is provided inside the support, and an intake hole is provided in the support. However, since this dryer does not have a shutter to prevent the inflow of moisture, it is easily affected by the weather and has the disadvantage of requiring a heat source as an essential component.

There is also a movable dryer covered with a transparent plate to make full use of solar heat (Utility Model Publication No. 39-2985).

Alternatively, a dryer (Utility Model Publication No. 40-15187) is equipped with a transparent resin cylinder to make full use of solar heat, a vertical pipe with intake holes is installed inside the cylinder, and an exhaust device is attached to the top of the vertical pipe. be. However, since they are all closed, they cannot utilize natural wind.

There is a disadvantage that drying performance deteriorates.

Therefore, the purpose of this invention is to attach a shutter to the ventilation opening on the side of a vertically long dryer installed outdoors so that the grain inside the dryer can be naturally dried by natural ventilation, and to open and close this shutter. A drive means for opening and closing is provided, and this drive means is controlled, and the shutter is opened at desired times such as on sunny days to allow natural ventilation, without causing drying defects such as side splits, etc.
It is an object of the present invention to provide a natural ventilation grain dryer that contributes to energy saving and allows the shutter to be opened and closed easily and smoothly.

Hereinafter, embodiments of the present invention will be described in detail and specifically based on the drawings. A grain chamber 4 is formed in a vertically long dryer main body 2 installed outdoors, and this grain chamber 4 is formed with a perforated plate 6. This grain chamber 4 is provided with an upper conveying means 8 at its upper part, and a delivery belt conveyor 10 and a lower conveying means 12 at its lower part. A grain lifting machine 14 is interposed between the upper and lower conveying means 8 and 12 to enable circulation drying of the grain. and.

In order to naturally dry the stored grain in the grain room 4 through natural ventilation, a plurality of cutters 18 are arranged in a step-like manner in the lower part of the lower part 16, and a shutter is provided in the upper part part 20. 22 is attached so that it can be opened and closed freely. The shutter 22 is made of a transparent resin plate to take in solar heat, and the upper ventilation hole 20
A shutter 22 is eccentrically attached to the shaft 24 disposed on the shaft 24 so that the upper end of the shutter 22, which is a part 19, is located inside the dryer main body 2 and opens when the dryer main body 2 is opened. This contributes to the effective utilization of the interior space and to smooth opening of the shutter 22. Further, a balance weight 26 is attached to a portion 19 of the shutter 22 in order to further smooth the opening and closing movement of the shutter 22. A sprocket 28 driven by the shaft 24
, and a guide sprocket 30 is interposed between each driven sprocket 28.

Furthermore, the tension grocket 32 adjusts the chain tension. A driving Sugerocket 33 is installed, and an endless chain 34 is attached to each sprocket 28, 30, 32, 33.
Stretch it.

A speed reducer 36 and a drive motor 38 are provided as drive means to impart reciprocating motion to the chain 34, and a control means is provided to apply a drive current to the drive motor 38 to cause it to rotate in forward and reverse directions as desired.

That is, this control means is Controltex 40,
The rain sensor 42 is configured to function as a break switch when it rains, and the humidity sensor 44 is configured to function as a break switch when the humidity exceeds a predetermined value. 42,44
The lead wires are introduced to form an electric circuit inside the control tex 40. This allows the drive motor 38, which is a drive means, to be controlled in order to close the shutter 22 during rainy weather or high humidity.

In addition, 46 is a wire robe, and 48 is a supply arm.

And 50 is the electrical equipment dex.

Next, the effect will be explained.

First, the natural grain dryer according to the present invention is installed outdoors in a rice field or the like via a wire pod roso 46, etc., and at this time, one ventilation port 16, 20 is oriented in the direction of the wind. Then, grains such as corn, for example, are supplied from the feeder 48 and stored in the grain chamber 4 through the grain lifting machine 14 and the like.

However, when the sun rises and the humidity decreases.

Not only does the rain sensor 42 operate, but the humidity sensor 44 also operates when the humidity falls below a set value (60 degrees in the embodiment). Therefore, under the control of the control tex 40, a drive current for opening the shutter 22 is applied to the drive motor 38. As a result, the chain 34 rotates in the direction of the arrow L1, and the shutter 22 moves from the fully closed state shown by the imaginary line to the arrow L! It opens in the force direction and is kept fully open as shown in Figure 2. For this reason, the upper ventilation opening 20 is opened, and natural air passes through the grain room 4 from one ventilation opening 20 and exits to the other ventilation opening 20.

At this time, the stored grain in the grain chamber 4 is naturally dried, and there is no risk of drying defects such as side splitting.

Then, if it rains all day long, or if it gets humid in the evening, the rain sensor 42. Or the humidity sensor 44 is activated,
Therefore, a drive current for closing the shutter 22 is applied to the drive motor 38, and the shutter 22 is moved to close to be in a fully closed state. By the way, it's raining.

Alternatively, it is possible to prevent the inflow of moisture and prevent drying failure due to moisture absorption.

As is clear from the above description, according to the present invention, a shutter is provided on the side surface of a vertically long dryer body installed outdoors so as to be openable and closable, a driving means for opening and closing the shutter is provided, and this driving means is controlled. Since the control means is provided, it is possible to naturally dry the stored grains by natural ventilation, and it is possible to dry the grains uniformly, and it is also possible to prevent inconveniences such as shell cracking. Since it is possible to use a drying method, it can contribute to energy saving.

As in the embodiment, the shutter is eccentrically mounted so that it can be opened and closed so that a part of the shutter is located inside the dryer main body when it is opened.

If you attach a balance weight to a part of the shutter.

This enables effective use of the inside of the dryer, and opens and closes the shutter using a small-capacity drive motor.

The shutter can be opened and closed smoothly.

Further, as in the embodiment, if a control means including a rain sensor and a humidity sensor is provided to control the drive means to close the shutter in rainy weather or when humidity exceeds a set value, natural wind This has the effect of saving labor for natural drying and improving drying efficiency.

[Brief explanation of drawings]

FIG. 1 is a front view showing a grain natural dryer according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of FIG. 1. 2...Dryer body, 22...Shutter, 26...
Balance weight, 28...Sugerocket, 38...
・Drive motor, 40...control, 42
...Rainfall sensor, 44...Humidity sensor.

Claims (3)

[Claims] (1) A shutter is provided on the side of the main body of the vertically long dryer to be installed outdoors so that it can be freely opened and closed in order to naturally dry the stored grain through natural ventilation, and a drive means is provided to open and close the shutter. A natural ventilation grain dryer characterized by being provided with a control means for controlling the dryer. (2) The shutter is constructed by placing a part of the shutter inside the dryer main body and fitting it eccentrically to the shaft so that it can be opened and closed when opened, and a balance weight is attached to a part of the shutter. A natural draft grain dryer according to claim 1, characterized in that: (3) The control means includes a rain sensor and a humidity sensor that control the drive means to close the shutter in rainy weather or in high humidity exceeding a set value. Or the natural draft grain dryer according to paragraph 2.