JPS5926223Y2 - grain drying equipment - Google Patents

Description

[Detailed description of the invention] In this invention, a ventilation pipe having a large number of ventilation holes is placed around the grain storage tank made of a perforated plate, and a drying room is formed between the grain storage tank and the ventilation pipe. This relates to grain drying equipment.

Conventionally, this type of drying equipment dried the grains in the drying storage tank by blowing drying air from only one direction. There is a difference in the drying loss rate between grains on the side where the wind passes through, which has the disadvantage of causing uneven drying.

Therefore, this invention has a structure that can be switched so that drying air can be alternately ventilated into the drying chamber from the ventilation tube or the grain storage tank side, and dry air can also be passed into the drying storage tank from the side where the moisture-laden air exits. To provide a drying device for grains that can be dried to a uniform degree of dryness without causing uneven drying.

An embodiment of this invention will be described below based on the drawings.

1 is a dry storage tank made of a cylindrical perforated plate having a large number of ventilation holes 1C, and the floor plate 1a of this dry storage tank 1 is provided with a large number of blowholes 1b, lb... There is.

A pressure chamber 2 is disposed below the floor plate 1a of the dry storage tank 1, and the pressure chamber 2 and the dry storage tank 1 are communicated with each other via the blowhole 1b. A blow pipe 4 which is connected to a blower 3 is connected to the section.

In addition, on the floor plate 1a of the dry storage tank 1, as shown in FIG.
A discharge gutter 5 that is inclined so that the outer circumferential side is lower is formed in a part deviated by 80 degrees, and a blow hole 5 that blows out air in the discharge direction is formed through the bottom plate 5a and side plates 5b, 5b of this discharge gutter 5. c, 5 c...... are provided.

Blow holes 1b, lb on the floor plate 1a of the dry storage tank 1
- divides the jetting direction from a part deviated by 180 degrees from the discharge gutter 5 along the radial direction, and the blowholes 1b, l
b... The grain is discharged in the shortest distance by the blast from the drain gutter 5.
It is configured so that it can be transferred up to

At the center of the floor plate 1a of the dry storage tank 1, a ventilation tube 6 having a large number of ventilation holes 5a, 5a, . The formed space is formed into a drying chamber, and a blower 3 is connected to the lower side of the ventilation pipe 6 via a wind pipe 7.

Reference numeral 7a denotes a switching valve provided in the wind pipe 7, which can be rotated to adjust communication and isolation between the blower 3 and the ventilation pipe 6.

Next, when explaining the blower 3, 3C is the blower 3.
In the underframe, the square part of the underframe 3C has a rolling wheel 3d...
The square part of the underframe 3C supports a support rod 3f that can be adjusted vertically and has a locking part 3e at the bottom, and the support rod 3f projects downward. the locking part 3e
is positioned below the wheel 3d, and the blower 3 is supported by the locking portion 3e of the support rod 3f, or by pulling the support rod 3f upward, the locking portion 3e of the support rod 3f is positioned above the wheel 3d. When the roller 3d is positioned to support the blower 3, the roller 3d
The structure is such that the blower 3 can be transported by.

3a is an air outlet, and 3b is an air intake port.The air outlet 3a and the air intake port 3b are configured to have the same shape and the same height, and can be connected to the air outlet A of the air pipe 4 and the wind pipe 7. It is configured as follows.

Reference numeral 4a denotes a switching valve, which can be rotated to control communication and isolation between the air pressure chamber 2 and the blower 3.

Note that 3g is a motor and 3h is a bundle.

A support frame 8 is horizontally suspended at the inner lower part of the ventilation tube 6, and a support rod 9 is erected on the support frame 8, and the pipe portion 10a of the regulating body 10 is slidably mounted on the support rod 9. is fitted.

A guide pipe 11 is fixed in a horizontal direction between the lower inner surface of the dry storage tank 1 and the lower outer surface of the ventilation tube 6, and a guide ring 12 is pivotally supported on the support frame 8. With,
A mounting body 14 attached to the lower part of the dry storage tank 1 supports a regulating ring 14 rotatably and fixedly, and also has a ventilation pipe 6.
A support frame 8a is attached to the inner upper part of the support frame 8.
A guide ring 12 a is attached to the guide pipe 11 a between the upper outer surface of the ventilation tube 6 and the upper inner surface of the dry storage tank 1.
a, and a guide ring 1 is attached to the upper outer part of the dry storage tank 1.
2b is installed.

One end of the wire 13 is connected to the lower part of the regulating body 10, and the other end of the wire 13 is connected to the upper part of the regulating body 10.

Then, the lower side of this wire 13 is wound around the guide ring 12, and then led out through the guide pipe 11 to the outside, and wound around the regulating ring 14, and the upper side of this wire 13 is wound around the guide ring 12a. The guide pipe 11a is led out through the guide pipe 11a, and then wrapped around the guide ring 12b.

A conical distributor 15 is attached to the upper end of the ventilation pipe 6, a funnel 17 is attached to the conical distributor 15 via a stay 16, and the outlet 17a of the funnel 17 is opened above the conical distributor 15. ing.

A grain dropping port 21 is opened above the funnel 17.

Next, the effect will be explained.

When pre-drying raw paddy etc. harvested with a combine harvester, the bundle 14 a of the regulating wheel 14 is rotated to move the regulating body 10 to the upper part of the ventilation tube 6 , and then the air intake port 3 b of the blower 3 is moved. is connected to the air outlet A of the wind pipe 7, and the blower 3 is rotated.

At this time, the switching valve 7a is held horizontally so that the blower 3 and the ventilation tube 6
The switching valve 4b causes the pressurized air chamber 2 and the blower 3 to be communicated with each other.

Then, the paddy is dropped into the funnel 17 from the drop opening 21.

Then, the conical distribution body 15 is evenly spread into the dry storage tank 1 while being dispersed around the periphery.

When the paddy is packed into the drying storage tank 1 in this way, dust is scattered, but this dust is sucked into the ventilation tube 6 along with the air sucked into the inside through the ventilation holes 6a of the ventilation tube 6. The air is discharged from the blower 3 to the outside through the wind pipe 7.

Next, the bundle 14a of the regulating ring 14 is rotated, and the regulating body 10 is fixed at a position slightly below the upper surface of the stuck grain, and the air inlet 3b of the blower 3 and the air outlet 3 are fixed.
Next, connect the air outlet 3a to the air outlet A of the wind pipe 7.

Then, the wind sent to the ventilation tube 6 flows out laterally from the surrounding ventilation holes 6a and flows into the paddy in the drying storage tank 1.
This wind flows laterally through the paddy, flows out from the ventilation hole 1C, and pre-dries the paddy.

When air is blown for a certain period of time, grains near the ventilation hole 6a where dry air blows and grains near the ventilation hole 1C where moisture-laden air escapes will be dryer due to the difference in drying efficiency. This causes uneven dryness.

Therefore, when the air outlet 3a and the air intake port 3b of the blower 3 are switched again and the air intake port 3b is connected to the air outlet A of the wind pipe 7, the suction force of the air blower causes the air to flow out of the dry air outside the dry storage tank 1. It flows into the storage tank 1 through the ventilation hole 1C, passes through the rice grains, passes through the ventilation hole 6a, the ventilation tube 6, the wind pipe 7, and then flows into the blower 3.
is discharged outside the machine from the air intake port 3b.

The wind dries the paddy.

At this time, the paddy near the ventilation hole 1C through which dry air passes is dried better than the paddy near the ventilation hole 6a through which the air that contains more moisture is absorbed, so the uneven drying described above is eliminated and the paddy is uniformly dried. It is dried thoroughly.

When transferring the uniformly dried paddy to the finishing storage tank (not shown), open the opening/closing plate located on the outer periphery of the discharge gutter 5, close the switching valve 7a on the wind pipe 7 side, and then The switching valve 4a on the 4 side is opened, and the air from the blower 3 is sent to the pressure chamber 2.

Then, the wind in the pressurized air chamber 2 blows out from the blowhole 1b of the floor plate 1a, and the paddy on the floor plate 1a is sequentially sent to the discharge gutter 5 side, and the paddy that has fallen into the discharge gutter 5 is Bottom plate 5a and side plates 5b.

The flow is accelerated by the wind blowing out from the blowhole 5C of the blowhole 5b, and even if the slope of the discharge gutter 5 is gentle, the storage tank 1 can be quickly drained.
Paddy can be removed from inside.

This idea consists of placing a ventilation tube 6 having a large number of ventilation holes 6a around the grain storage tank 1 made of a perforated plate having ventilation holes 1C, and creating a drying room between the grain storage tank 1 and the ventilation tube 6. Since the grain drying device is constructed such that drying air can be passed alternately from the ventilation tube 6 side to the grain storage tank 1 side and conversely from the grain storage tank 1 side to the ventilation tube 6 side, The grain can be dried evenly by blowing dry air not only from one direction but also from the side where moisture-laden air is less efficient at drying.

[Brief explanation of drawings]

The drawings show one embodiment of this invention, and FIG.
A side view of the drying device, FIG. 2 is a sectional view of the same, FIG. 3 is a sectional view of the same side, FIG. 4 is a perspective view of the grain supply section, FIG. 5 is a side view of the blower, and FIG. 6 is a rear view of the same. FIG. 7 is a plan view of the same. 1 is a grain storage tank, 1C is a ventilation hole, 6 is a ventilation tube, and 6a is a ventilation hole.

Claims (1)

[Scope of utility model registration request] A ventilation tube 6 having a large number of ventilation holes 6a is placed around the grain storage tank 1 made of a perforated plate having ventilation holes 1C, and a drying room is formed between the grain storage tank 1 and the ventilation tube 6. Dry air flows from the ventilation pipe 6 side to the grain storage tank 1 side, and vice versa.
This grain drying device is configured to allow alternate ventilation from the side to the ventilation tube 6 side.