JPS6224224Y2 - - Google Patents

Description

[Detailed description of the invention] In the present invention, the grain tank into which the grains to be dried are placed has a cylindrical or polygonal shape with the axial direction being vertical, and inside the grain tank, the grains placed in This relates to improvements to a cylindrical grain ventilation drying device in which a plurality of vertical augers for stirring and fluidizing grains are provided so as to rotate concentrically around the axis of the grain tank. It is.

The above-mentioned cylindrical grain ventilation drying device supports the grains to be loaded into the grain tank, and is equipped with an air-permeable member such as a net so that drying air can be supplied to the supported grains. The floor plate, which is made of wood and placed on a shelf at the bottom of the grain tank, is normally formed in the form of a flat plate along a horizontal plane. In order to smooth the flow toward the outlet provided at the center of the floor plate, it may be formed in the shape of a funnel that slopes downward toward the outlet.

However, if the floor plate of the grain tank is formed into a funnel shape in this way, in the case of grain ventilation drying equipment in which a plurality of vertical augers are suspended in the grain tank, the lower ends of each of the plurality of vertical augers and the distance to the top of the floorboard is
There is a difference between the vertical auger located in the center of the grain tank and that of the vertical auger located on the outer periphery of the grain tank. The agitation and flow of the grain immediately above the floorboard becomes more pronounced toward the outer periphery of the grain tank, and hardly occurs at the center of the grain tank. From this, it appears that the drying air that blows into the grain tank from below the floorboards and passes through the grains deposited in the grain tank passes through the outer periphery where good agitation and flow occurs. This causes a problem that causes uneven drying.

The purpose of the present invention is to propose a new means to solve this problem.

In order to achieve this object, the cylindrical grain ventilation drying device according to the present invention has a grain vat into which the grains to be dried are filled, which is formed into a cylindrical or polygonal shape with a vertical axis. In a cylindrical grain ventilation drying device in which a plurality of vertical augers are vertically arranged in parallel to a support mechanism installed in a grain tank so as to revolve around the axis of the grain tank, A floor plate made of a breathable material placed on a shelf at the bottom of the grain tank is formed into a funnel shape that slopes downward toward the outlet formed in the center of the floor plate, and multiple plates are supported in parallel on the above-mentioned support machine frame. The hanging length of the vertical auger is formed so as to increase sequentially from the vertical auger located at the outer periphery of the grain tank to the vertical auger located at the axial center of the grain tank. .

Next, an example of the implementation will be explained in detail according to the drawings. In FIG.
It's built on top of that. Reference numeral 3 denotes a floor plate that is placed on a shelf at the bottom of the grain tank 1 to support the grains placed in the grain tank 1, and is made of a material such as a net or a perforated board to be breathable, and It is formed into a funnel shape so that the floor surface slopes downward toward the discharge port 4 installed at the center.

Reference numeral 5 denotes a grain lifting machine (bucket elevator) attached to the grain tank 1 for loading grain into the grain tank 1.
A conveyor 50 whose terminal end side in the conveying direction protrudes into the upper part of the inner cavity of the grain tank 1 through a communication port provided in the roof 10 of the grain tank 1 is connected to the discharge port at the upper end of the conveyor 50.
The starting ends of are connected.

Reference numeral 6 denotes an equalizing machine disposed below the terminal end of the conveyor 50 and installed above the inner cavity of the grain tank 1, which divides the grains discharged from the terminal end of the conveyor 50 into a rotating equalizing plate. 60 serves to distribute the grain evenly into the grain tank 1.

7 is a hot air generating device that sends drying air to the grains placed in the grain tank 1 and deposited on the floor plate 3, which is a combination of a blower 70 and a furnace 71;
The hot air outlet is connected to the air guide chamber W formed between the lower surface of the floor plate 3 and the upper surface of the base 2, and is installed on the outer surface of the grain tank 1.

8 is a vertical auger arranged in the grain tank 1 so as to stir and flow the drying grains which are placed in the grain tank 1 and receive the drying air supplied from the above-mentioned hot air generating device 7. At the center of the upper part of the inner cavity of the grain tank 1, a machine frame 91 is provided which rotates around a support shaft 90 arranged at the axial center of the grain tank 1, and at the same time, the upper part of the inner cavity of the grain tank 1 A rail 9 continuous in an annular manner on the outer peripheral surface of
A supporting machine frame 93 is provided between the machine frame 91 and the rail 92 so as to revolve around the support shaft 90. Mounting machine frame 8 that pivotally supports each upper end of the auger 8...
0... are mounted in parallel, and each vertical auger 8 is independently rotated by a motor 81 attached to its mounting frame 80, and the above-mentioned support machine As the frame 93 revolves around the support shaft 90, the frame 93 revolves around the grain tank 1 with concentric loci, which is different from the vertical auger in the conventional cylindrical grain ventilation drying device. In addition, each mounting frame 80 reciprocates in a certain range along the longitudinal direction of the support frame 93 with respect to the support frame 93, so that the revolution rotation due to the rotation of the support frame 93 is prevented. It is still the same as before that the vertical augers 8 may be repeatedly moved forward and backward with respect to the axis of the grain tank 1, but the vertical length l of these multiple vertical augers 8 is equal to The one located on the outermost side of the inner cavity is the shortest, and the one located closer to the axial center is set so that it becomes longer.
As a result, the imaginary line connecting the lower ends of the vertical augers 8 is substantially parallel to the floor surface of the floor plate 3 that slopes downward toward the discharge port 4.

Note that the floor plate 3 formed in a funnel shape that slopes downward toward the central discharge port 4 supports vertical augers 8 supported in parallel on the support machine frame 93 within a certain range D, respectively. When the machine frame 93 is mounted so as to reciprocate in the longitudinal direction, the lower ends of the vertical augers 8 whose vertical lengths are set as described above touch the floor plate during the reciprocating movement in the aforementioned direction. In order to avoid interference with the upper surface of the grain tank 3, the funnel-shaped floor plate 3 is fixed so that the width d in the radial direction of the grain tank 1 of each step surface 30 is as shown in FIG. Each vertical auger 8 is formed in a stepwise manner corresponding to a reciprocating range D, and on the upper surface side of each step surface 30, each vertical auger 8 is formed in a radial direction of the grain tank 1 (in the support machine frame 93). There are cases in which reciprocating motion is performed in the longitudinal direction).

In addition, on the upper surface of the inclined floor plate 3, as shown in FIG.
may be installed.

In the illustrated embodiment, 40 is a conveyor for carrying out the grains discharged from the outlet 4 provided at the center of the floor plate 3, and the terminal end in the conveying direction is connected to the bottom of the grain lifting machine 5. It has been done. Moreover, 51 is a take-out gutter provided in the upper part of the grain lifting machine 5 and connected to the conveyor 50 in a freely switchable manner, and 95 is a motor for driving the revolution of the supporting machine frame 93.

Next, to explain the function and effect, the cylindrical grain ventilation drying device according to the present invention constructed as described above has the floor plate 3 formed in the shape of a funnel that slopes downward toward the central discharge port 4. A plurality of vertical augers 8 are supported in parallel on a support frame 93 that revolves around the axis of the augers 8, and the distances between their respective lower ends and the upper surface of the floor plate 3 are approximately equal. Since the floor plate 3 is formed into a funnel shape, the flow condition of the grains toward the discharge port 4 is improved, and the plurality of grains that rotate around the revolution are held in the same state and rotated on their own axis. Both the action of stirring and fluidizing the grains by the vertical auger 8...
The drying air blowing up from the bottom surface of the floorboard 3 can be passed through the grain layer deposited on the top surface of the floorboard 3 without causing unevenness.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of an embodiment of the device of the present invention, FIG. 2 is a longitudinal sectional front view of another embodiment of the device, and FIG. 3 is a longitudinal sectional front view of another embodiment of the device. 1...grain tank, 10...roof, 2...base, 3...
...floorboard, 30...step surface, 4...exhaust port, 40...
Conveyor, 5...Grain lifting machine (bucket elevator), 50...Conveyor, 51...Mounting gutter, 6...
... Equalizing machine, 60 ... Equalizing plate, 7 ... Hot air generation device, 70 ... Blower, 71 ... Furnace, 8 ... Vertical auger, 80 ... Mounting machine frame, 81 ... Motor, 90 ... Support shaft, 91... Machine frame, 92... Rail, 93... Support machine frame, 95... Drive motor, W... Wind guide chamber, l... Length, D... Reciprocating range, d...Radial width, Y...Horizontal auger.

Claims (1)

[Scope of utility model registration request] The grain tank into which the grains to be dried are placed is formed into a cylindrical or polygonal shape with the axial direction vertical, and a plurality of vertical augers are installed in the grain tank at the center of the axis of the grain tank. In a cylindrical grain ventilation drying device that is vertically installed in parallel with a supporting machine frame that is installed to revolve around the grain tank, a floor plate made of an air permeable member placed on a shelf at the bottom of the grain tank is installed at its center. The hanging length of the plurality of vertical augers, which are formed in a funnel shape and are supported in parallel on the above-mentioned support frame, is determined by the length of the vertical auger located on the outer periphery of the grain tank. A cylindrical grain ventilation drying device characterized by being formed so that it gradually becomes longer toward a vertical auger located at the axial center of the grain tank.