JPS5942221B2 - Storage drying bin - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a storage drying bottle that sends drying air from the outside of the outer cylinder into the inner cylinder through a storage chamber formed between the inner and outer cylinders having air permeability. The purpose of this is to ensure that the grain is dried uniformly on both the side and the outer cylinder side.

Conventionally, as a storage drying bin, a storage chamber for storing grains, etc. is formed between an inner and outer double cylinder with air permeability, and an outlet of a blower is connected to the lower end of the inner cylinder via a ventilation duct, and the air blower is used to store grains. Some devices dry the grains in the storage chamber by sending drying air into the inner cylinder and sending the air from the inner cylinder side through the storage chamber to the outside of the outer cylinder.

However, when drying air is passed from inside the inner cylinder to the outside of the outer cylinder, the air volume per unit amount of grain near the inner cylinder is several times the air volume per unit amount of grain near the outer cylinder (for example, the air volume per unit amount of grain near the inner cylinder is When the diameter ratio between the outer cylinder and the outer cylinder is 1:3, the air volume ratio per unit amount of grain is approximately 3:1), and since the drying air passes between the grains while absorbing the moisture in the grains, it gradually Its humidity increases and its moisture absorption capacity decreases.

For this reason, in the conventional apparatus, the grain near the outer cylinder is less likely to be dried than the grain near the inner cylinder, causing uneven drying of the grain.

Conventionally, in order to prevent such uneven drying, workers would stir the grain in the storage chamber, or perform rotations (transferring grain from one storage drying bin to another storage drying bin).
However, it required a great deal of effort and effort.

In addition, in the conventional device described above, drying air was sent from inside the inner cylinder to the outside of the outer cylinder, so dust, light grains, branches, etc. were mixed with the air discharged from the outer cylinder and scattered around. It was supposed to happen.

For this reason, it was necessary to provide a special dustproof cover around the outer cylinder.

The present invention provides a device that can solve the above-mentioned problems at once.In this invention, an air intake duct communicating with an air intake port of a blower is connected to an opening of a manned inner cylinder having ventilation, and drying air is aired by the suction action of the blower. It is characterized in that it is fed into the inner cylinder from the outside of the outer cylinder.

Embodiments of the present invention will be described below based on the drawings. In FIGS. 1 and 2, 1 is a storage and drying bottle main body, the main body 1 has an outer cylinder 2 made of a porous member having air permeability, It consists of an air permeable manned inner cylinder 3 housed coaxially inside the outer cylinder 2, and a bottom plate 4 that closes the lower part between the two cylinders 2 and 3, and grains are stored between the two cylinders 2.3. A storage chamber 5 is formed.

The upper end of the outer cylinder 2 is open, so that grains can be thrown into the storage chamber 5 from above.

6 is an air cutoff damper that constitutes the bottom of the manned inner cylinder 3.

The lower end opening 3a of the manned inner cylinder 3 has an intake lower a of the blower 7.
An intake duct 8 communicating with is connected.

9 is a fan blade of the blower 7, which is rotationally driven by a motor 10.

In this embodiment, a hot air guide tube 1 is constructed in which a certain gap is left on the outside of the outer tube 2 and the upper and lower ends are closed with end plates 11 and 12.
3 is provided, and a hot air generator 1 that sends low-hot air as heated dry air into the hot air introduction pipe 14 outside the opening of the hot air introduction pipe 14 provided at the lower part of the hot air guide tube 13.
5 is provided.

Here, it is preferable that the hot air introduction pipe 14 is provided in the tangential direction to the hot air guide tube 13. With this configuration, the fluidity of the low hot air in the hot air guide tube 13 can be increased, and the Hot air can be sucked in evenly.

Further, in this embodiment, a mechanism for discharging the grains in the storage chamber 5 is incorporated into the main body 1.

That is, the bottom plate 4 is made of a porous material having air permeability, and an air supply guide cylinder 16 extending from the lower end of the outer cylinder 2 and closing the bottom part is provided.

An air supply duct 18 is branched in the middle of the exhaust duct 1γ connected to the exhaust lower b of the blower 7, and the tip of the air supply duct 18 is opened into the air supply guide cylinder 16. There is.

A switching damper 19 is provided at a branching portion of the exhaust duct 17 and the air supply duct 18 to switch the air discharge flow path from the blower 7 to the exhaust duct 17 or the air supply duct 18.

Further, a grain discharge hopper 20 inclined downward is provided on the bottom plate 4 of the main body 1.
An opening/closing lid 21 for opening and closing the hopper 20 is provided in the middle of the hopper 20.

In the above-mentioned apparatus, grains are put into the storage chamber 5 from above the main body 1, the air supply duct 18 is closed by the switching damper 19 (state A in the figure), the exhaust duct 17 is opened, and the blower 7
When the air blower 7 is operated, air outside the outer cylinder 2 (here, high-temperature dry air sent out from the hot air generator 15) is sucked into the storage chamber 5 by the suction action generated at the intake lower a of the blower 7. The grains in the storage chamber 5 are fed into the inner cylinder 3 through the grain layer while absorbing moisture.

At this time, the air volume per unit amount of grain is larger near the inner cylinder 3 than near the outer cylinder 2, but this is because the drying air absorbs moisture from the grains while traveling from the outer cylinder 2 side to the inner cylinder 3 side. , its humidity increases and its water absorption capacity gradually decreases.

Therefore, the drying unevenness caused by the air volume per unit amount of grain in the storage chamber and the drying unevenness caused by the change in air humidity cancel each other out, and as a result, the
Uniform drying is performed on the inner cylinder 3 side and the outer cylinder 2 side.

In addition, since the above-mentioned configuration device sends air from outside the outer cylinder 2 into the inner cylinder 3, dust, light grains mixed in the air, etc.
The branch infarcts can be collected in the intake duct 8, and there is no possibility that these dust particles will be scattered outside the main body 1.

When attempting to discharge the grains in the storage chamber 5, the lid 21 of the grain discharge hopper 20 is opened, the switching damper 19 closes the exhaust duct 17, and the air discharged from the blower 7 is passed through the air supply duct 18. The air is guided into the air supply guide tube 16.

As a result, the air introduced into the air supply guide tube 16 is
The grains in the storage chamber 5 are fed into the storage chamber 5 through the ventilation holes in the bottom plate 4, and the grains in the storage chamber 5 are transported to the grain discharge hopper 20 by this wind pressure.
more excreted.

On the other hand, the air sent into the storage chamber 5 is once blown up above the storage chamber 5, and due to the suction force of the blower 7, it does not go outside the outer cylinder 2 and passes through the ventilation hole of the inner cylinder 3. The air passes through and is sucked into the inner space of the inner cylinder 3, and is sent into the air duct 18 again via the blower 7.

Therefore, even when the grain is discharged, dust, light grains, branches, etc. are not scattered outside the main body 1.

As mentioned above, it goes without saying that if the hot air guide cylinder 13 is provided around the outer cylinder 2, scattering of dust and the like can be further prevented.

As explained above, the present invention connects an air blower that sucks the inside of the inner cylinder to the inner cylinder, and uses the air blower to suck the inside of the inner cylinder and send air from outside the outer cylinder into the inner cylinder. Therefore, the uneven drying caused by the difference in air volume per unit amount of grain in the storage chamber and the uneven drying caused by changes in air humidity can be canceled out, and the entire grain in the storage chamber can be Allows for even drying.

Therefore, it becomes possible to save the labor and effort required by the operator to stir the inside of the storage chamber and perform rotation as in the past.

In addition, during drying and grain discharge, air is always collected in the inner cylinder and never leaves the outer cylinder, so dust, light grains, stems, etc. mixed in the air are removed. This prevents the particles from scattering around the main body 1, improving the working environment.

In addition, since there is no need to provide any special dustproof cover around the outer cylinder, the structure of the device can be simplified.
It can be provided at low cost.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the device of the present invention. FIG. 2 is a front view of the apparatus shown in FIG. 1. 2... Outer cylinder, 3... Manned inner cylinder, 3a.
...opening, 5...storage chamber, γ...
...Blower, γa...Intake port, 8...
intake duct.

Claims (1)

[Claims] 1. A manned cylinder with ventilation is provided inside the manned cylinder with ventilation, a storage chamber for storing grains, etc. is formed between the manned cylinder and the outer cylinder, and a blower is installed in the opening of the manned cylinder. A storage drying bin formed by connecting an air intake duct that communicates with the air intake port.