JPS5853272B2 - Kokuruikansouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a grain drying device, and was developed in order to improve the drying efficiency, prevent patchy drying, and uniformize the degree of dryness of grains.

Conventional grain drying equipment generally provides drying ventilation to a dense grain layer in which grains are closely connected, and the air resistance in the densely formed grain layer increases. Since it is large, ventilation is insufficient, and the wind on the exhaust side of the grain layer becomes more humid than the wind on the blast side, so there is a defect that uneven drying occurs between several layers on both the blast side and the exhaust side.

In addition, there are cases where grains are dried by blowing them through the wind tunnel with strong winds, but since the drying action is instantaneous, the drying process uses extremely large air volumes and a large amount of heat, but most of it is wasted during drying. Its effects were extremely weak and it was of no practical use, so it has now completely disappeared.

In addition, there is a device similar to the cylinder and spiral of the present invention, in which the spiral axis is used as a blowing pipe, and a blowing hole is formed on the circumferential wall of the pipe, and air is blown around the pipe to dry the grains. There is an example of No. 10001, and there is also an example of Utility Model Publication No. 35-9467, in which a cylinder is formed of a porous material and the spiral grains inside are dried by blowing air from the rows of the cylinder. It is difficult for the wind to pass through the densely layered grains, and in the case of both of the above devices, most of the wind blows through the spiral space on the top surface of the grains, which are stacked in a thin layer on the top surface of the spiral. Since the air passes through the grain layer by grazing the surface and does not ventilate the internal structure of the grain layer, almost no drying effect can be expected and it is practically impractical.

As described above, when ventilation is applied to the coarse grain layer formed in the wind tunnel, that is, the scattered grain group, most of the wind and heat are consumed ineffectively because the passage time through the wind tunnel is short. When passing through the grain layer, the grain density is too high, so that the effect of ventilation drying cannot be obtained and uniform drying is extremely difficult.

The present invention uses the spiral plate itself as a porous wall, and by blowing air from below, the grains stacked in a spiral are scattered through the porous wall, the grain density is adjusted appropriately, and the grains are ventilated and dried. The grains are dispersed into the tank through the upper threshing window, and the grains are tempered in the plug flow inside the tank to prevent uneven drying of the grains and cracking of the grains.

The present invention blows drying air onto the grains scattered in a spiral space, so air volume and heat capacity are effectively utilized, and the drying air is also used for upward transport, eliminating the need for separate elevators and the like. This provides effects such as being safe against cracks and enabling highly efficient drying.

To explain the present invention with reference to embodiment figures, Fig. 1 shows the structure of a blow drying device, in which a cylinder 2 is erected inside a tempering cylinder 1 whose lower part forms a funnel-shaped hopper, and a cylinder 2 is provided at the upper and lower parts of the tempering cylinder 2. A plate-shaped spiral 6 fixed to a tube shaft 5 mounted on the bearings 3 and 4 is used as a porous wall, and the ventilation holes in the porous wall are as shown in FIG.
As shown in Figures 6, 7, and 8, depending on the type of grain or the type of drying purpose, such as a mixture of through holes that are diagonal, directly above, or tilted to the left and right in consideration of the directivity of the through holes. It is formed into various shapes.

A grain discharging window T is provided on the upper peripheral wall of the cylinder 2, and a grain feeding window 9 is provided on the lower peripheral wall, and cylindrical on-off valves 8 and 10, which are aligned and overlapped with the cylinder 2, are moved up and down by gripping rods 11 and 12, respectively. The upper part of the cylinder 2 is extended and bent so that the grain threshing pipe 13
There is an exhaust port 14 at the tip and an exhaust pipe 15 on the way.
This is provided.

On the lower side of the cylinder 2, a wire mesh 19 is provided in a picture window 18 in which a blow pipe IT of a blower 16 is installed to prevent the grains inside the cylinder 2 from leaking.

To feed the grains from the rows into the cylinder 2, they are fed from a hopper 20 through a screw conveyor 21 to a grain feeding port 22.

Although FIG. 1 shows a structure in which the spiral 6 is rotated, the spiral 6 may not necessarily rotate and may remain stationary and unused.
Further, as shown in FIG. 9, the spiral 6 may be reciprocated diagonally up and down by a cam 23 and a rod 24.

In addition, the spiral tube shaft 5 is not necessarily used as a tube but may be used as an ordinary shaft, but FIG. In some cases, air is blown from the provided air chamber 26 through the air supply port 2γ and into the tube shaft 5 from the air hole 28.

5, 6, 7, and 8 each show another embodiment of the plate-like porous wall of the spiral 6, and in each figure, the upper figure is a longitudinal sectional view, and the lower figure is a plan view.

The one in FIG. 5 has a porous wall opened in the spiral plate body in the upward direction of the spiral 6, that is, in the diagonal upward direction, and has the effect of causing the grains to swirl and rise while blowing up and scattering them. The one shown in the figure is effective for promoting the scattering of grains with a porous wall that has a combination of circular holes directly above the plate and ventilation holes opening diagonally upward in both left and right directions.

Both FIGS. 1 and 8 are embodiments in which the resistance to wind is minimized as much as possible.

Various other ventilation holes of arbitrary shapes can be applied to the present invention.

The present invention forms a kind of circulation process in which the grains fed into the tempering gun 1 are scattered in a jet shape by the spiral 6 of the porous wall in the cylinder 2 and are returned to the tempering gun 1, forming a kind of circulation process. The grain is evacuated to an appropriate density and ventilated for a long period of time, allowing for uniform and highly efficient drying, as well as moderate tempering to prevent cracking and damage to the grain and produce high-quality dried grain at high speed. This has the effect that it can be processed in a number of ways.

Claim 3 is a grain threshing device of the present invention,
When the circulation drying is completed, the opening/closing valves of the grain threshing window and grain feeding window opened at the top and bottom of the cylinder are closed, and the grains are discharged in series from the discharge port through the grain threshing pipe in the upper part.

Examples of National Policies To explain in Figure 1, the following points are taken:
When the grains are pulled upward, the on-off valves 8 and 10 close the grain discharging window γ and the grain feeding window 9, respectively, and the grains are completely discharged from the discharge port 14.

This is an embodiment in which excess air is exhausted from the exhaust pipe 15 at this time.

The present invention has the effect of completely eliminating grain lifting equipment such as elevators in order to save construction costs and installation space, and allowing grains to be easily taken out in series by simply switching the on-off valve on and off.

In addition, in the present invention, it is also possible to achieve the same drying purpose by suctioning the air above the cylinder to also serve as dustproofing.

[Brief explanation of the drawing]

The drawings are illustrative diagrams of the present invention; FIG. 1 is an overall vertical cross-sectional view, FIG. 3 is an enlarged view of the main parts thereof, FIGS. 2, 4, and 9 are enlarged views of the main parts of applied embodiments, and FIG. 5, 6, 7, and 8 are all enlarged views of the main parts of the present invention, and the upper figure is a vertical cross-sectional view, respectively.
The figure below is a plan view. 1... Tempering tank, 2... Cylinder, 3... Bearing, 4... Bearing, 5...
...Pipe shaft, 6...Spiral, γ...Grain removal window, 8...Grain removal window opening/closing valve, 9...Grain feeding window , 10... Grain feeding window opening/closing valve, 11...
- Grip, 12... Grip, 13... Grain removal pipe, 14... Discharge port, 15... Exhaust pipe, 16... ...Blower, 1γ...Blow pipe,
18...Picture style window, 19...Wire mesh, 20
...Hopper, 21...Screw conveyor 22...Grain feeder, 23...
・Cam, 24...Rod, 25...Blower port, 26...Air chamber, 2γ...Picture port, 28...Blower Thousand

Claims (1)

[Scope of Claims] 1. A thin spiral plate installed along the inner surface of a cylinder installed upright in a tempering tank whose lower part forms a funnel-shaped hopper is used as a porous wall, and from below the perforated wall surface of the spiral. The drying air is allowed to pass upward, and a grain feeding window for grains in the tank is provided in the lower peripheral wall of the cylinder, and
A circulation process in which a picture opening is provided on the lower side of the cylinder, and the grains are dried while being ventilated so as to be scattered in a jet shape on the thin plate spiral inside the cylinder, and then returned to the tank through the upper grain threshing window and circulated. A grain drying device characterized by comprising: 2. A grain drying device according to claim 1, characterized in that the spiral is mounted on a shaft so that it rotates or reciprocates together with its main shaft.3 Inside a tempering tank whose lower part forms a funnel-shaped hopper. A thin spiral plate installed along the inner surface of an upright cylinder is used as a porous wall, and air is blown from the bottom to the top. and an on-off valve that moves up and down along the peripheral wall to open and close the grain threshing window, and the upper part of the cylinder is bent to form a grain threshing pipe for shredding grain into the tank row. Grain drying equipment.