JPH02115683A - Unhulled rice drying machine - Google Patents

Abstract

PURPOSE:To remove heat due to natural heat generation of unhulled rice and to accelerate drying equivalent to natural drying by forming an unhulled rice drying machine in a double wall at the periphery of a cylindrical body, and sucking ventilated air from the outer periphery substantially uniformly to a central suction cylinder along the all axial center directions of the body. CONSTITUTION:When unhulled rice 17 is charged from an unhulled rice inlet 15 of upper end in an unhulled rice drying machine (a) and thrown to a position designated by an imaginary line, an outer cylinder 14 is raised to the vicinity of the upper surface of the rice 17, and the suction port 11 of a suction cylinder 12 is opened in the accumulated rice 17. A ventilation passage 8 of the upper stage is closed, passages 8 of intermediate and lower stages are opened, and a fan 13 is started to operate drying. Then, the air sucked from the passages 8 is passed substantially uniformly through the interior of the rice 17 from the vent port 7 of its inner wall 5 to be sucked and discharged from the port 11 into the cylinder 12. In this case, the heat of the natural heat generation of the rice 17 is removed, drying equivalent to the natural drying is accelerated without charging thermal energy for drying, dried for a predetermined period of time, and the dried rice 17 is recovered from an unhulled rice outlet 16.

Description

DETAILED DESCRIPTION OF THE INVENTION <Used split ends on N leaves] This invention belongs to the field of drying split ends, and relates to a rice dryer that does not use a heat source.

(Conventional Techniques) Various means for forcibly drying rice using a heat source P have been proposed, but these methods have had the problem of deteriorating quality despite high cost.

(Problems to be Solved by the Invention) In view of the above, the present invention aims to provide a paddy dryer that can dry raw paddy equivalent to natural drying by removing heat generated from the paddy through ventilation.

(Means for solving the problem) The paddy dryer of the present invention has a double pedestal in the local part of the cylindrical body,
On the inner neck side, it communicates with the inside of the fuselage through a vent on the inner rock face.
The exterior side is connected to a ventilation hole that introduces outside air, and in the center of the inside of the fuselage there is a vertical suction cylinder with many suction ports on the outer periphery.A fan is installed at the top of the suction cylinder to draw outside air. The cylindrical body is opened, and an outer cylinder covering the suction port is fitted on the outer periphery of the upper part so as to be slidable up and down, a paddy input port is provided at the upper end of the cylindrical body, and a paddy removal port is provided at the lower end. , by appropriately supporting the body. Here, the ventilation passage is not limited to one place, and includes those arranged evenly in a plurality of places around the circumference of the fuselage, as well as those arranged in multiple stages in the narrow direction of the fuselage.

(Function) According to the above configuration, ventilation from the outer periphery can be sucked into the central intake cylinder almost uniformly throughout the axial direction of the fuselage.

(Example) This invention will be specifically explained with reference to an example.
As shown in FIG. 2, the cylindrical body 1 is made up of double walls, the inner and outer walls, and is supported by 1jl12 with its axis perpendicular. It consists of outside I! The inner wall 5, which is attached to the inner wall 4 by screws or spot welding, is made of a longitudinally corrugated full-gate pipe.

Therefore, the welding surface between the outer wall 4 and the inner wall 5 is intermittently,
Air passages 6 are formed in a mesh pattern in the upper, lower, left and right directions. The inner wall 5 is provided with ventilation lowers that communicate with the ventilation passages 6 almost evenly, and the outer wall 4 is provided with ventilation passages 8 in multiple stages at the top, middle, and bottom, as shown in FIG.
are communicated via a wind pressure regulating valve 9, and the ventilation passage 8 communicates with a ventilation opening 10 at its outer end. A suction cylinder 12 having a large number of suction ports 11 penetrating its outer periphery is vertically disposed at the center of the interior of the body. The suction cylinder 12 has a 7-inch fan 16 installed at the top, and a fan 1.
6. Open to the outside air through a heat insulating means (not shown) to prevent cold air from flowing into the suction tube 12 when not in use, and the suction port 11 is installed on the upper outer periphery of the suction tube 12 depending on how the paddy is stored. Outer WJ14ri for attaching: Fitted to the outside so that it can be slid vertically, a paddy input port 15 is provided at the upper end, and a paddy removal port 16 is provided at the lower end. As shown by the imaginary lines in Figure 1, two lines may be arranged facing each other, or they may be arranged in multiple lines evenly.The ventilation opening 10 communicating with the outer end of the ventilation passage 8 has a built-in means for adjusting the humidity of the outside air. There are things to do.

The paddy dryer a constructed in this way has a paddy input port 15 at the upper end.
When the paddy 17 is inputted to the position shown by the imaginary line in FIG. Open inward. When the upper ventilation passage 8 is closed and the lower ventilation passage 8 is opened and the 7-an 13 is started for drying operation, the air sucked from the ventilation passage 8 is transferred to the paddy 17 from the ventilation lower of the inner wall 5.
At this time, the naturally generated heat of the paddy 17 is removed and the paddy is naturally dried without inputting thermal energy for drying. After drying for a required period of time, the dried paddy 17 is recovered from the paddy outlet 16.

(Effects of the Invention) As described above, according to the present invention, ventilation can be caused to flow almost uniformly from the outside IN part to the center part of the paddy stored in the pile without inputting thermal energy. It has the effect of removing the heat generated by the natural heat generation of the paddy, promoting drying equivalent to natural drying, saving energy, and providing rice of the same quality as naturally dried rice. Since it is joined, there is a slope.

[Brief explanation of the drawing]

FIG. 1 is a schematic vertical cross-sectional view of a paddy dryer a according to the present invention, FIG. 2 is a partial enlarged vertical cross-sectional view of the outer circumference, and FIG. 6 is an enlarged vertical cross-sectional view of section A in FIG. 1. In the figure, 1 is the body, 2 is the legs, 6 is the insulation material, 4 is the outer wall, 5 is the inner wall, 6 is the ventilation path, 7 is the ventilation hole, 8 is the ventilation path, 9 is the wind pressure adjustment valve, 10 is the ventilation hole, 11 suction port, 12 suction tube, 1
6 is a fan, 14 is an outer cylinder, 15 is a paddy inlet, 16 is a paddy outlet, and 17 is a paddy outlet. a is a paddy dryer. Measured /: Yoji Cup 3: Linear fever 3 times / θ 1 relative p lt, throat', 5117 d, sashimi 41 buried

Claims (2)

[Claims] (1) The cylindrical body has double walls inside and outside, and the ventilation passages between the inside and outside walls are connected to the interior of the fuselage via the vents on the inner wall on the inner wall side, and to the vents that introduce outside air on the outer wall side. A suction tube with a large number of suction ports penetrating the outer periphery is installed vertically in the center of the tube, and a fan is provided at the top of the suction tube to open it to the outside air, and an outer tube covering the suction ports is provided on the upper outer periphery. This dryer is characterized by being fitted onto the outside of the cylindrical body so as to be slidable up and down, and having a paddy inlet at the upper end of the cylindrical body and an unloading outlet at the lower end, thereby allowing drying with outside air. (2) The rice dryer according to claim (1), wherein the body is composed of a transversely corrugated outer wall and a longitudinally corrugated inner wall, and the contact surfaces of the inner and outer walls are joined.