JPS606473B2 - Grain feeding device in grain dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a grain feeding device for uniformly dispersing grains by means of a diffusion vane provided near the center of the upper part of a storage tank.

The rotational speed of the diffusion blade is adjusted so that uniform diffusion is achieved in each radial direction with respect to the center of rotation, but compared to the amount of grain transferred to the diffusion blade per unit time during regular drying operations, During the tensioning operation in which new grain is loaded into the grain dryer, the amount of grain transferred is large, so the diffusion blades, which are adjusted to ensure uniform diffusion during the drying operation, are used during the tensioning operation. However, there is a problem that a bias appears in the amount of diffusion.

Therefore, in this invention, it is devised so that the grain is dispersed almost uniformly in all directions even during the grain drying process, and the configuration is such that a diffusion vane is installed near the center of the upper part of the storage tank 6 of the grain dryer 1. A transfer spiral 2 is rotatably installed, one end of which passes through the diffusion vane 7, and a transfer spiral 2 is rotatably installed in a transfer gutter 3 provided at the top of the storage tank 6. Grain drying device equipped with an overflow spout that can discharge the excess grain to the outside of the transfer gutter 3 when the layer thickness of the grains transferred to the sides of the transfer gutter 3 in the intermediate portion exceeds a predetermined value. This is a grain feeding device in a machine.

Next, one embodiment of the specific structure will be described in detail with reference to the attached drawings.

In the grain dryer turtle, an overflow port 4 is installed in the middle of a transfer gutter 3 that houses a transfer spiral 2 installed horizontally in the upper part.
is provided. This overflow port 4 is formed so that when grains are transferred in the transfer gutter 3 and the transfer amount exceeds the appropriate amount, the grains are naturally discharged directly from this overflow port into the storage tank 6. It has been done. generally,
Although the appropriate transfer amount in the transfer gutter 3 is determined based on the grain distribution during grain drying, this overflow port 4 is
It is possible to install it above the treetop from this reference line. Then,
A diffusion blade 7 is attached directly below the discharge port 5, and the transfer gutter 3
The grains transferred inside the dryer fall from the discharge port 5 onto the upper surface of the diffusion blade 7 and are spread in the radial direction. During regular drying operations in which grains are repeatedly flowed down and lifted up in the dryer without drying, the grains are uniformly spread in all directions from the spreading vane 7, as schematically shown in Figure 3. The rotational speed of the diffusion vane 7 is adjusted so that this is possible.However, at the time of spreading, the transfer gutter 3 is transferred in a full state.Therefore, t The flow rate far exceeds the appropriate standard mentioned above.
In this case, as shown in FIG. 4, the grains are scattered less in the right direction and more in the left direction in the figure by the diffusion blade 7, so that the grains do not flow uniformly into the storage tank 6, causing dry patches. However, since the overflow port 4 is provided as shown in Fig. 5, when the transfer amount is larger than the predetermined value during the drying operation, only the amount exceeding the predetermined value is transferred. Since the grains overflow from the overflow port 4, the amount of grains supplied to the diffusion blades is approximately the same as during drying, and uniform diffusion is achieved. New grains are supplied into the dryer through the loading port 8, loaded onto the tin by the L grain lifting device, and then fed to the rear of the transfer trough 3.

The grain feeding device in the grain dryer according to the present invention is constructed as described above, and the dispersion blade 7 is passed through the side surface of the intermediate portion of the transfer gutter 3 which encloses the transfer spiral 2. ``When the layer thickness of the grain to be transferred exceeds a predetermined value, an overflow port 4 is provided to discharge the excess grain to the outside of the transfer gutter 3. Grain of a predetermined layer thickness is always supplied during loading, and the grain can be uniformly dispersed in all directions by the diffusion blades 7, so that the grain is dried uniformly without uneven drying. Moreover, since the flow rate of grains supplied to the diffusion vanes 7 is constant in this way, the load fluctuation of the drive mechanism of the diffusion vanes 7 is reduced, which has the advantage that the drive mechanism can be driven with small horsepower. It also has

[Brief explanation of the drawing]

In the drawings, Fig. 1 is a vertical side view of a grain dryer equipped with the device of the present invention, Fig. 2 is a partially cutaway front view of the same, Fig. 3 is an explanatory longitudinal cross-sectional rear view showing the state of grain transfer during drying, and Fig. 4 The figure is an explanatory plan view showing the state of grain dispersion during loading. Figure 5 is an explanatory rear view showing the state of overflowing from the overflow port. ...transport spiral ``
3...transfer gutter, 4...overflow port, 5...
··Vent. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 1 A diffusion blade 7 is rotatably installed near the center of the upper part of the storage tank 6 of the grain dryer 1, one end is communicated with the diffusion blade 7, and a transfer gutter 3 is provided at the top of the storage tank 6.
A transfer spiral 2 is rotatably installed inside the transfer spiral 2, and when the layer thickness of the grain to be transferred exceeds a predetermined value, the above-mentioned grain is transferred to the side surface of the transfer gutter 3 at the intermediate portion of the transfer spiral 2. A grain feeding device in a grain dryer which is provided with an overflow port 4 for discharging to the outside of a transfer gutter 3.