JPS608637Y2 - Natural grain drying device using solar heat - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a natural grain drying device using solar heat.

It can be said that mature, delicious rice, which maintains its life in the first place, survives thanks to the blessings of nature.

However, most of the rice (milled rice) currently shipped and sold in the market (including rice grain stores) is processed using combine harvesters, and when drying the paddy, liquid fuel such as heavy oil or gaseous fuel ( We use hot air (thermal power) artificial drying using a combustor using propane gas or city gas.

Therefore, there is a serious drawback that most of the paddy is almost dead rice.

By the way, it is said that if the rice is 100% dried using artificial heat, all of it will turn into dead rice.

Natural drying of paddy, which has been practiced since ancient times, involves harvesting and bundling the rice.
This is first applied and dried naturally under solar heat (heaven's fire).

It is said that this natural drying method can dry only about 60% of the paddy in about one week.

This dried paddy is threshed with a threshing machine to make brown rice, which is then transferred to the top, the upper and lower brown rice are evenly stirred, and then naturally dried under solar heat (heaven's fire), resulting in approximately 80% dryness and 15-16% moisture content. However, this natural drying method takes a long time depending on the weather, such as sunny, cloudy, or rainy weather, and has the drawbacks that the brown rice becomes unpalatable due to deterioration during that time, and that it is not possible to dry a large amount of rice in a short period of time due to drying efficiency. be.

This idea fundamentally eliminates the above-mentioned drawbacks, and as a result of research and development, it makes extremely economical and effective use of the solar heat that can be received freely anywhere for free, and naturally dries a large amount of paddy with high efficiency to produce the most delicious ripe rice. The aim is to provide an excellent natural drying device that contributes to the national rice food policy.

Hereinafter, this invention will be explained with reference to one embodiment shown in the drawings.
A shaped heat-receiving cylinder 1 that accommodates grains such as rice and wheat so as to receive the sun's radiant heat energy all around the inside is made of a perforated plate made of wire mesh or a transparent material, and a tube is placed directly below it. As shown in FIGS. 1 and 2, for example, a grain flow tube 5 is provided with a funnel-shaped hopper 2 for flowing down the grain and a lift conveyor 3 such as a shaping screw conveyor for lifting or lowering the grain inside. A passage 4 for the grains flowing down from the hopper 2 is provided on the lower side of the grain flow cylinder 5, and a discharge amount lower for the lifted grains is provided on the upper part.

Then, the radiant heat energy of the sun is injected into the heat receiving cylinder 1 through the heat receiving cylinder 1 into the grains such as rice and wheat that are fed into the heat receiving cylinder 1 through the upper opening 6 by, for example, a packet elevator. By the rotation of the lift conveyor 3, the grains in the heat receiving cylinder 1 and hopper 2 are caused to flow down into the hopper 2 from the inner peripheral side of the heat receiving cylinder 1 as shown by the arrows in FIG. The inside of the fluidizing cylinder 5 is lifted up by the lifting operation by the lift conveyor 3 through the
This grain is discharged and lifted up from the upper discharge lower part to the center part S of the heat receiving tube 1, and the grain is further lifted into the heat receiving tube 1 by this discharge force.
The grains on the outer circumferential side are lifted up to near position 6 of the supply opening 6, and are turned and discharged from the center to the outer circumferential side at the return portion R below this opening 6, and the grains on the outer circumferential side are transferred to the circumferential side U of the heat receiving cylinder 1 by their own gravity. The grains are allowed to naturally flow down into the hopper 2, and then raised again by the continuously operating lift conveyor 3 while being fed into the grain flow tube 5 through its passage 4, and as described above, the grains are heated from the upper discharge volume lower of the flow tube 5. A repeating continuous automatic circulation cycle of grains is carried out, which is discharged into the central part S of the cylinder 1 and raised from the central part of the heat-receiving cylinder 1, and the radiant heat energy of the sun is transferred to the flowing grains through this circulation cycle through the heat-receiving cylinder 1. By effectively and evenly injecting grains, flowing grains can be air-dried with high efficiency.

In the process of naturally drying a large amount as described above, the grains that have been completely naturally dried are taken out by opening the shutter 9 through the grain outlet gutter 8 installed at the bottom of the hopper 2, and the next grain is heated. Since the material is supplied through the upper opening 6 of the cylinder 1 and the natural drying process is carried out almost continuously, highly efficient natural drying can be achieved.

In FIG. 3 of the embodiment, a parabolic reflecting mirror that faces the heat receiving tube 1 and collects the radiant heat energy of the sun and enters the heat receiving tube 1 is always tracked to the position of the sun that moves relatively. Angle adjustment handle 12 via movable arm 11
This universal joint 13 is installed on the ground via a base 14.

Also, the machine frame 16 on the mounting base 15 into which the motor M is dug
A hopper 2 is installed at , and a rotating shaft 18 of a lift conveyor 3 coupled to a drive shaft 17 of a motor M is supported on a machine frame 16 via a bearing 19.

Further, casters 20 are attached to four locations on the lower part of the mounting base 15, so that the entire apparatus is configured to be movable and portable.

When the sky is clear, the grain flowing through the heat receiving tube is naturally dried using the sun's radiant heat energy, but when it is rainy or cloudy and it is necessary to naturally dry the grain, a blower blows cold air through the heat receiving tube. It can act on the grains flowing in the cylinder to dry them.

This idea was developed to effectively utilize the free solar radiation heat energy that falls almost permanently from the blue sky all over the world for the natural drying of grains such as rice and wheat. In the energy heat receiving cylinder, the grains are flown upward from the center by the lifting blade of the lift conveyor, and are diverted and flowed down by their own weight, like a fountain blown up at the top, flowing down.
In the lower part, a lift conveyor is used again to flow the grain upward from the center.It is configured so that the radiant heat energy of the sun is injected into the flowing grain through a heat receiving cylinder and dried naturally, so that a large amount of grain can be dried. Natural drying can be done evenly and efficiently in a short period of time, and this natural drying can stabilize the quality and dry the grain economically, making it possible to produce living and delicious rice, which is an important contribution to the national policy on rice consumption. The actual benefits are great.

[Brief explanation of drawings]

The figures show an example of the solar heat-utilizing grain natural drying device of this invention. Fig. 1 is a vertical sectional front view, Fig. 2 is a horizontal auxiliary plan view of the hopper section, and Fig. 3 is a solar radiant heat energy drying device. FIG. 4 is a front view of this invention showing the injection state, and FIG. 4 is a vertical sectional front view showing a second example of the embodiment of this invention. 1... Heat receiving cylinder for grains such as rice and wheat, 3...
...Lift conveyor, 4...Feed opening, 5
... Grain flow cylinder, 6 ... Upper supply port.

Claims (1)

[Scope of utility model registration request] A heat-receiving cylinder for grains such as rice and wheat is made of a perforated plate such as a metal net or a transparent material, and a heat-receiving cylinder for grains such as rice or wheat is made so that the radiant heat energy of the sun enters into the interior from all around. A lift conveyor is installed, and a top-open grain flow tube is installed inside the heat-receiving tube, which has openings for feeding grains flowing up and down. A solar heat-utilizing grain natural drying device characterized in that the grain is naturally dried by injecting radiant heat energy of the sun into the grain which is being circulated.