JPS6327059B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a ventilated bin for grain.

In conventionally known ventilated round bottles, the airflow flows unilaterally from the cylindrical internal cavity to the outside through the stored grains, so that the grains located on the upstream side of the airflow and the grains located on the downstream side There is a defect that causes a difference in moisture content between the two.

It is also already known to alternately ventilate the stored grain from opposite directions, but this method has a structure that requires multiple valves each operated by a separate valve shaft as a means of alternating ventilation. It is complicated and difficult to operate.

The present invention eliminates the above-mentioned disadvantages and prevents the occurrence of such moisture content differences by switching the flow direction of the air flow through the stored grain at regular intervals for a plurality of valves by a single shaft. It is an object of the present invention to provide an alternate ventilation type bin.

A feature of the present invention is that air passage switching valves that are simultaneously operated by one operating shaft are provided at the upper and lower parts of the cylindrical internal wind tunnel of the bottle, and the stored grain is controlled by switching the two air passage switching valves. The point is that the direction of the airflow flowing through the grains can be switched.

An embodiment of the present invention shown in the accompanying drawings will be described below.

FIG. 1 is a partially cutaway perspective view of an alternate ventilation type round bottle according to the present invention. In the figure, 1 is a cylindrical outer wall of a round bottle, 2 is a porous outer cylinder installed concentrically within the cylindrical outer wall, and 3 is a porous inner cylinder installed concentrically within the porous outer cylinder. The grains are stored between the porous outer cylinder 2 and the porous inner cylinder 3. Reference numeral 4 denotes an upper air passage switching valve installed in the upper part of the porous inner cylinder 3, and 5 denotes a lower air passage switching valve installed in the lower part of the porous inner cylinder 3. Both air passage switching valves 4 and 5 are operated by one valve operating shaft 6 extending upward from the center of the bottom of the porous inner cylinder 3 of the round bottle. The valve operating shaft 6 is rotated by a control motor (not shown) located at a suitable location.
An opening of a blower duct 21 communicating with a blower 20 is connected to a lower opening of the lower air passage switching valve 5 . In addition,
In FIG. 1, 7 is a supporting leg of a round bottle, and 8 is a funnel for discharging stored grains.

Figure 2 shows the upper air passage switching valve 4 seen from diagonally above.
FIG. 3 is an exploded perspective view of the valve main body 9 of the upper air passage switching valve 4 as seen diagonally from below. In the figure, the valve main body 9 is fixedly attached inside the porous inner cylinder 3. 10 is a valve plate disposed on the upper surface of the valve main body 9. The interior of the valve main body 9 is divided into four chambers a, b, c, and d by a pair of intersecting partition walls, one pair of opposing chambers c and d open vertically, and the other one
One of the pair of opposing chambers a and b opens upward, and the other opens into a lateral upper communication duct 22 that communicates with the annular external cavity 15 . A pair of fan-shaped openings 12 are provided in the valve plate 10 so as to face each other with the valve operating shaft insertion hole 11 at the center. Therefore, the valve plate 10 is rotated on the upper surface of the valve main body 9,
If the pair of openings 12 of the valve plate 10 are positioned above the pair of opposing chambers a, b or c, d of any one of the valve bodies 9, the exhaust duct 13 is connected to the cylindrical internal cavity 1.
4 or annular external cavity 15 .

FIG. 4 is an exploded perspective view of the lower air passage gate valve 5 seen diagonally from below, and FIG. 5 is a perspective view of the valve main body 16 of the lower air passage gate valve 5 seen from diagonally above. In the figure, the valve main body 16 is fixedly attached to the porous inner cylinder 3. 17 is a valve plate disposed on the lower surface of the valve main body. The interior of the valve main body 16 is divided into four chambers by a pair of intersecting partition walls, similar to the valve main body 9 of the upper air passage switching valve 4.
It is divided into a′, b′, c′, and d′, and one pair of opposing chambers a′ and b′ opens downward, and
The other side opens into the lower side communication duct 23 leading to the annular external cavity 15, and the other pair of chambers face each other.
c' and d' are open in the vertical direction. A pair of fan-shaped openings 19 are provided in the valve plate 17 so as to face each other with the valve shaft insertion hole 18 at the center. Therefore, the valve plate 17 is rotated to position the pair of openings 19 in the valve plate 17 below the pair of opposing chambers a' and b' or c' and d' of the valve body 16. If you let it, the air duct 21
The air sent to the lower surface of the lower air passage switching valve is
can be selectively sent.

The valve main body 9 of the upper air passage switching valve and the valve main body 16 of the lower air passage switching valve are fixedly mounted inside the porous inner cylinder 3 so that the chambers a, a', b, b'... are vertically overlapped. The valve plate 10 of the upper air passage switching valve and the valve plate 17 of the lower air passage switching valve are fixedly attached to the valve stem 6 such that their paired openings are perpendicular to each other when viewed in the vertical direction. The valve stem 6 rotatably penetrates into an insertion hole provided at the center of each valve main body 9, 16.

Therefore, the valve stem 6 is rotated by the control motor to open the pair of openings 19 in the valve plate 7 of the lower air passage switching valve.
are located below the opposing pair of chambers c' and d' of the valve body 16, the openings 12 of the pair of valve plates 10 of the upper air passage switching valve are located below the opposing pairs of chambers c' and d' of the valve body 9. Since it is located above chambers a and b, the air supplied to the lower air passage switching valve by the air duct 21 flows through the round bottle in the direction shown by the solid arrow in FIG. Also, if the valve stem 6 is rotated 90 degrees from the above position,
Since each valve plate 10, 17 also rotates 90 degrees, air now flows through the round bottle in the direction shown by the dotted arrow in FIG.

As described above, the alternating ventilation type bottle of the present invention has a porous inner cylinder and a porous outer cylinder disposed inside the outer wall, and the inside of the outer wall includes an inner cavity, an annular columnar outer cavity, and a ring located between the two cavities. The lower and upper ends of the porous inner cylinder are connected to a duct, respectively, and a grain receiving cylinder is provided at the upper end of the porous outer cylinder. A lower air passage switching valve is provided at the lower part, and the air passage switching valve is provided through the both air passage switching valves,
Further, a valve operating shaft is provided for simultaneously switching and operating both the air passage switching valves.
By providing alternate ventilation to the grains stored in the bin, it is possible to prevent uneven moisture content from occurring when the grains are processed in a desired manner.

In addition, in the above-mentioned embodiment, a humidifier is configured by connecting the air duct 21 with a humidifying means,
It is a natural technique to construct a dryer by connecting the blower duct 21 with a heating means. Further, instead of the blower 20, an exhaust fan may be provided in the exhaust duct 13, or the blower 20 and the exhaust fan may be used together.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of an alternate ventilation type round bottle according to the present invention, Fig. 2 is an exploded perspective view of the upper air passage switching valve seen from above, and Fig. 3 is an upward air flow shown in Fig. 2. Perspective view of the valve main body of the road switching valve viewed from below, No. 4
The figure is an exploded perspective view of the lower air passage switching valve seen from below.
FIG. 5 is a perspective view of the valve main body of the lower air passage switching valve shown in FIG. 4, viewed from above. 1... Cylindrical outer wall, 2... Porous outer cylinder, 3... Porous inner cylinder, 4... Upper air passage switching valve, 5... Lower air passage switching valve, 6... Valve operating shaft, 7... Support leg , 8... Funnel, 9... Valve main body, 10... Valve plate, 11... Valve actuation shaft insertion hole, 12... Opening, 13... Exhaust duct, 14... Cylindrical internal cavity, 15... Ring Columnar external cavity, 16... Valve main body, 17... Valve plate, 18...
...Valve operating shaft insertion hole, 19...Opening, 20...Blower, 21...Blower duct, 22...Upper communication duct, 23...Lower communication duct.

Claims (1)

[Claims] 1. A porous inner cylinder and a porous outer cylinder are disposed within the outer wall, and the inside of the outer wall is divided into an internal cavity, an annular columnar external cavity, and an annular columnar grain storage chamber located between the two cavities. , one of the lower and upper ends of the porous inner cylinder is connected to a ventilation duct and the other to an exhaust duct, a grain receiving cylinder is provided at the upper end of the perforated outer cylinder, and an upper air passage switching valve is installed at the upper end of the perforated inner cylinder.
A lower air passage switching valve is provided at the lower part thereof, and a valve operating shaft is provided that passes through both the air passage switching valves and simultaneously switches and operates both the air passage switching valves. Alternate draft bin. 2. The alternate ventilation bottle according to claim 1, wherein the valve operating shaft is a single shaft. 3. The alternate ventilation type bottle according to claim 1 or 2, wherein the ventilation duct has a humidifying means. 4. The alternating ventilation bottle according to claim 1, 2, or 3, wherein the ventilation duct has a heating means.