JPS6224225Y2 - - Google Patents

Description

[Detailed description of the invention] In the present invention, the grain tank into which the grains to be dried are placed is formed into a cylindrical or polygonal tube shape with the axis direction being vertical (vertical direction). A cylindrical grain structure in which the floorboard supporting the grains is made of a breathable material and is placed on a shelf at the bottom of the grain tank, and the grains spread inside the grain tank are dried by the drying air blown from below the floorboard. This invention relates to improvements to ventilation drying equipment.

There are two problems with the cylindrical grain draft drying device described above. One is that in order to discharge the grains loaded in the grain tank outside the machine, there is a rotating shaft parallel to the top surface of the floorboard that revolves around the center of the floorboard and revolves around the center of the floorboard. A horizontal auger that rotates on its own axis is installed, and the operation of the horizontal auger directs the lowest layer of grains deposited on the floorboard toward the discharge port installed in the center of the floorboard. However, it requires a large amount of power to carry out the grains using this auger, and in the final stage when the grains that have dried in the grain tank are carried out of the machine, the upper surface of the floorboard is The other method is to increase the amount of grain that remains after being carried out.The other method is to increase the amount of grain that remains after being carried out. As a result of this tendency, the drying air blowing up from the bottom side of the floorboards becomes uneven in how it permeates through the grain layer, and this unevenness in permeating the drying air causes the above-mentioned lateral In order to improve the grain removal action by the auger, if the floor plate is made into a funnel shape that slopes downward toward the central discharge port, the unevenness of penetration becomes even more severe.

The purpose of the present invention is to solve these problems, so that the drying air sent from below the floorboards to the grains deposited on the floorboards passes uniformly through the grain layer while reaching the upper surface of the floorboards. To make the grain carrying-out action by a horizontal auger installed horizontally along the side efficient and to reduce the amount of remaining grains.

In the cylindrical grain ventilation drying device according to the present invention to achieve this purpose, the grain tank is formed into a cylindrical shape or a polygonal cylinder with a vertical axis, and the bottom of the grain tank has an air permeability. Floorboards made of materials such as A horizontal auger is installed at the center of the grain tank to carry out the grains toward a discharge port drilled in the center of the floor plate, and the upper end of the auger protrudes upward from the grain layer deposited in the grain tank. A vertical wind guide tube is arranged, and at a position elevated from the floor plate in the grain tank at a predetermined height, a number of wind guide bars with an umbrella-shaped cross section are installed from the outer surface of the wind guide tube to the peripheral wall of the grain tank. In the cylindrical grain ventilation drying device, which is arranged so as to protrude radially toward the inner surface, and in which each inner end of the air guide bars is communicated with the inner cavity of the air guide tube, the floor plate is arranged so as to protrude radially toward the inner surface. It is formed into a funnel shape that slopes downward toward the outlet in the center of the floor plate at an angle of inclination that does not allow natural flow to flow down, and the horizontal auger is disposed on the upper surface of the funnel, and the large number of air guide bars are The wind guide tube is characterized in that it is disposed so as to protrude radially from the circumferential surface of the wind guide tube so as to be substantially parallel to the upper surface of the inclined floorboard.

Next, an example of implementation will be explained in detail according to the drawings. In FIG. 1, 1 is the fuselage and its peripheral wall 1a
is formed into a cylindrical shape or a polygonal tube shape. Reference numeral 2 denotes a grain tank installed in the body 1, and a floor plate 20 made of a breathable material such as a mesh or a perforated plate is shelved at a position slightly higher than the bottom plate 10 in the inner cavity of the body 1. The fuselage body 1 is formed with an internal cavity above the floor plate 20.

The floor plate 20 is formed in a funnel shape so that the floor surface supporting the grains is inclined downward toward a discharge port 21 installed at the center of the floor plate 20 . The inclination angle α at which the floor surface is inclined downward toward the discharge port 21 is an inclination angle at which the grains deposited on the floor surface do not naturally flow down, and is smaller than the angle of repose of the grains. .

Reference numeral 3 denotes a horizontal auger disposed on the upper surface side of the floor plate 20, which is mounted on the upper surface of the conductor case A that is fixedly supported in the discharge port 21, and which rotates freely by a vertical shaft 30 with respect to the conductor case A. A drive wheel is mounted with a machine casing B, the base end of the rotating shaft 31 of the auger 3 is supported in the transmission casing B, and the drive wheel is supported in a transmission casing C provided at the tip of the rotating shaft 31. 32 is mounted on a rail 33 that is annularly installed inside the peripheral wall 11 of the machine body 1, which is the peripheral wall of the grain tank 2, and the base end of the rotating shaft 31 is
In the above-mentioned conductor case B, the electric current is transmitted to the transmission mechanism a and the conduction mechanism b in the conductor case A as shown in FIG. By conducting to the conduction mechanism c in the conductor case C, the conduction mechanism a in the conductor case A described above
By transmitting rotational power to the rotating shaft 31
rotates on its own axis, and the spiral blades 34 provided on the circumferential surface of the rotating shaft 31 act to transport the grains toward the proximal end of the rotating shaft 31, and the driving rotation of the rotating shaft 31 causes the transmission mechanism to The drive wheel 32 rotates at a reduced speed and runs on the rail 33 via the vertical axis 3
It operates to revolve around 0. The horizontal auger 3 is placed in a position where the rotating shaft 31 is parallel to the floor surface of the above-mentioned inclined floor board 20.
It is placed on the floor of 0.

Reference numeral 4 denotes a grain lifting machine (bucket elevator) installed on the outer surface of the machine body 1 in order to load grain into the grain tank 2 formed on the upper surface side of the floor plate 3. The starting end of the tensioning conveyor 40, whose terminal end in the conveying direction enters and opens the grain tank 2, is switchably connected to a grain take-out gutter 41.

Reference numeral 5 denotes a blower device for supplying drying air to the grains strung by the grain lifting machine 4 and the strung conveyor 40, and its discharge port 50 is connected to the lower surface of the floor plate 20 and the bottom plate 10. It is connected to an air guide chamber 51 formed between the two.

Reference numeral 6 denotes a vertical wind guide tube disposed at the axial center of the inner cavity of the grain tank 2. The lower end side is closed with a bottom plate 60, the upper end side is open, and the open opening 61 at the upper end is used to open the grain tank. It is installed so that it protrudes upward from the upper surface of the grain layer when the grains are fully loaded in the tank 2.

Reference numeral 7 designates a number of air guide bars provided to project radially from the outer peripheral surface of the vertical air guide tube 6 toward the inner surface of the peripheral wall of the grain tank 2, each of which is made by bending and forming an iron plate, as shown in FIG. As shown in FIG.
The air guide path 7a formed inside the air guide bar 7 having an umbrella-shaped cross section communicates with the inner cavity of the air guide cylinder 6 through the through hole 62. It is set as. When the air guide beams 7 deposit grains on the floor plate 20 and send dry air at a predetermined static pressure from the air guide chamber 51 below the floor plate 20,
The outer circumferential surface of the wind guide tube 6 and the circumferential wall 11 of the fuselage 1 are arranged at a height opposite to the upper surface of the grain layer at a pile height that allows the drying air of static pressure to pass through with a sufficient amount of airflow.
(the peripheral wall of the grain tank 2), and in this case, as shown in FIG. They are installed at an angle so that they are substantially parallel to each other.

In the illustrated embodiment, 12 is a roof provided on the fuselage 1 to cover the upper surface of the grain tank 2;
1 is an exhaust pipe connected to the roof 12, 14 is an exhaust fan, 8 is a conveyor for carrying out grains discharged from the discharge port 21 to the outside of the machine, 80 is a rotating shaft of the conveyor 8, and 81 is the rotating shaft. This is a transmission mechanism that transmits rotational power from the shaft end of the shaft 80 to the transmission mechanism a inside the transmission case A. In addition, 63 indicates the direction in which the dry air guided in the air guide path 7a inside the air guide bar 7 reaches the inner end portion of the air guide path 7a connected to the inner cavity of the air guide tube 6. In order to introduce dry air overflowing from the inner end portion of the air passage 7a into the inner cavity of the air guide tube 6, the air guide tube 6 is used.
This is an open opening that opens at a position above the connection part with the inner end of the air guide bar 7 in the body part of the air guide bar 7.

Next, to explain the function and effect, the cylindrical grain ventilation drying device according to the present invention configured as described above has a floor plate 20 made of an air-permeable material and placed on a shelf at the bottom of the grain tank 2. The sloping floor plate 20 is shaped like a funnel that slopes downward at an angle of inclination that is somewhat smaller than the angle of repose of the grains to be dried. A horizontal auger 3 with a rotating shaft 31 along the upper surface of the floor plate 20 rotates on its own axis while orbiting along the upper surface of the floor plate 20, and delivers grains to the discharge port 21.
Since the grains are transported to the side, the grains are transported by the auger 3 in cooperation with the upper surface of the inclined floor plate 20, and the grains are efficiently directed toward the discharge port 21 with a small amount of power required. Most of the grains that remain on the upper surface of the floor plate 20 at the end of the grain discharge process are quickly dredged toward the discharge port 21. During the drying process, the air guide bar 7 is provided to guide the drying air blowing up from the lower surface of the floorboard 20 toward the inner cavity of the air guide tube 6 at a predetermined height position within the grain layer.
However, since the air guide tubes 6 are arranged radially around the air guide tubes 6 so as to be substantially parallel to the upper surface of the inclined floor plate 20, the distance between the upper surface of the inclined floor plate 20 and the air guide beam 7 is However, from the inner end to the outer end of the air guide bar 7, the conditions are approximately equal, and the drying air blowing up from the lower surface of the floorboard 20 passes through the grain layer almost uniformly. .

Therefore, according to the present invention, the lateral auger 3 provided on the upper surface of the floorboard 20 makes the grain removal action more efficient, and while reducing the amount of remaining grains, the grains are blown up from below the floorboard. It is possible to allow the drying air to pass through the grain layer deposited on the upper surface of the floorboard in a substantially uniform state.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of an embodiment of the device of the present invention, Fig. 2 is a longitudinal sectional side view of the main parts of the same device, and Fig. 3 is a longitudinal sectional side view of the revolving drive mechanism of the auger next to the above device. FIG. 4 is a vertical sectional view taken along the line -- in FIG. 2. Explanation of drawing symbols, A... Fixedly supported conductor case, a... Transmission mechanism, B... Rotating conductor case,
b...Transmission mechanism, 1...Body, 1a...Surrounding wall, 1
0...Bottom plate, 11...Peripheral wall, 12...Roof, 13
...Exhaust pipe, 14...Exhaust fan, 2...Grain tank,
20...Floor plate, 21...Exhaust port, α...Inclination angle,
3...Horizontal auger, 30...Vertical shaft, 31...Rotating shaft, C...Transmission machine casing, c...Transmission mechanism, 32...
...Drive wheel, 33...Rail, 34...Spiral blade, 4
...grain lifting machine (bucket elevator), 40...
Conveyor for loading, 41... Takeout gutter, 5... Air blower, 50... Air outlet, 51... Air guide chamber, 6... Vertical air guide tube, 6a... Body circumferential wall, 60... Bottom plate, 61
...Open opening at upper end, 62...Through hole, 63...Open port, 7...Air guide bar, 7a...Air guide path, 8...Conveyor for carrying out, 80...Rotating shaft, 81... Conduction mechanism.

Claims (1)

[Scope of utility model registration request] The grain tank is formed into a cylindrical or polygonal shape with a vertical axis, and a floor plate made of a breathable material is placed on the bottom of the grain tank, and the bottom of the floor plate is used as a drying air guide path. A horizontal auger is installed on the top surface of the floorboard, which rotates while revolving around the center of the floorboard and carries out the grains toward a discharge port provided in the center of the floorboard. A vertical wind guide tube is provided at the axial center of the grain tank, the upper end of which protrudes upward from the grain layer deposited in the grain tank, and a vertical wind pipe is provided at a predetermined height from the floor plate in the grain tank. At the elevated position, a large number of wind guiding bars with an umbrella-shaped cross section are arranged so as to protrude radially from the outer surface of the wind guiding tube toward the inner surface of the peripheral wall of the grain tank, and the inner ends of each of these wind guiding bars are In the cylindrical grain ventilation drying device that communicates with the inner cavity of the air guide tube, the floor plate is sloped downward toward the outlet at the center of the floor plate at an angle of inclination that does not allow the grains to naturally flow down. The above-mentioned horizontal auger is arranged on the upper surface of the funnel-shaped auger, and the plurality of air guide bars are arranged radially from the circumferential surface of the air guide tube in a posture substantially parallel to the upper surface of the inclined floor plate. A cylindrical grain ventilation drying device characterized by its protruding arrangement.