JPH0242669Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention consists of installing a bucket conveyor-type elevator upright on the front of the fuselage, which is equipped with a grain tank inside, and installing a bucket conveyor-type elevator at the discharge port and the front side of the fuselage. The grains released from the bucket of the bucket conveyor type elevator are
This invention relates to an improvement in a grain dryer in which the grain is connected and communicated so that the grain flies through the receiving port of the grain tank and is thrown into the tank.

In the grain dryer of the above-mentioned type, a bucket conveyor-type lift installed upright on the front side of the machine releases the grains from a bucket, which is used to load grain into a grain tank installed in the machine. Since the movement is carried out by utilizing the momentum of the grain, the flying distance of the grains thrown from the bucket of the bucket conveyor type elevator into the grain tank is proportional to the length of the grain tank from front to back. As a result, many grains are deposited at the front of the grain tank, and the amount of grains deposited at the back of the grain tank is reduced, causing problems with drying operations and uneven grain circulation. There is a problem that drying becomes uneven when tightened.

As a countermeasure to this problem, as described in Japanese Utility Model Application Publication No. 55-91494, a grain tank receiving port is installed on the back side of the grain tank opposite to the grain tank receiving opening to which the bucket conveyor type lift outlet connects. A suction blower is installed to create a flow of air from the inlet side toward the back of the grain tank, and the grains that are thrown into the grain tank from the outlet of the bucket conveyor elevator through the reception port of the grain tank are installed. A known method is to extend the flight distance of the grains by placing them on the flow of the suction air of this suction blower, so that the grains reach the depths of the grain tank. Since the suction blower is provided separately, a drive mechanism is required to drive it, which not only increases the required power, but also increases the cost. By making the suction air strong enough to blow away the grains, more grains will fly into the suction port of the suction blower, and the grains will be scattered outside the machine along with the exhaust air. Another problem arises.

Furthermore, as a means for reflecting and scattering a group of small articles thrown into a grain tank, there is a known means for installing a patch plate movably up and down in the middle of the falling path of a group of small articles, as described in Japanese Utility Model Application Publication No. 53-27576. However, in order to increase the scattering distance, this method requires lowering the position of the backing plate to increase the falling distance of the colliding small items, so it is not suitable for use in grain dryers. In some cases, the height of the grain piled up in the grain tank is lowered, resulting in a problem in which the amount of grain put in is reduced.

The present invention has been made to solve these problems that have arisen with the conventional means. The flight distance of the grains thrown into the machine can be increased without installing a special drive mechanism or increasing the required power.
In addition, the grains are increased without causing the grains to spill out of the machine, and the grains are allowed to reach the depths of the grain tank at a high position within the grain tank. It is an object of the present invention to provide a new means for achieving a sufficient pile height.

In the present invention, as a means to achieve this purpose, a bucket conveyor type elevator is erected on the front of the machine body in which the grain tank is installed, and the discharge port of the bucket conveyor type elevator is connected to the machine body. The receiving port of the grain tank provided at the upper part of the front side of the container is connected and communicated with the receiving port of the grain tank so that the grains released from the bucket of the bucket conveyor type elevator fly through the receiving port and are thrown into the grain tank. In the grain dryer, a shelf-shaped jump table with a flat top is installed at a height approximately corresponding to the reception opening of the grain tank on the ceiling between the front and back of the inner cavity of the grain tank. The top surface of the grains is arranged in a posture substantially parallel to the flight trajectory of the grains that are thrown into the grain tank from the bucket of the bucket conveyor type elevator to fly on a substantially horizontal flight trajectory. The grains flying along the substantially horizontal flight trajectory collide with the upper surface at an extremely shallow acute angle of incidence and are reflected backward and upward into the grain tank at a corresponding acute angle of reflection. The present invention proposes a grain dryer characterized by the following features.

Next, an example of implementation will be described in detail with reference to the drawings.

In Figures 1 and 2, a is a grain dryer A
This is the main body of the aircraft, with four walls 1... and bottom plate 2.
It is formed into a box shape by the top plate 3 and the top plate 3.

b is a grain tank in which grains to be dried are filled, and at the bottom of the inner cavity of the body A, as shown in FIG. By arranging shelves so as to be inclined downward from the inner surfaces of the machine walls 1, 1 toward the left and right centers of the machine body a, respectively, the internal cavity of the machine body a above the floor plates 4, 4 is formed. .

C is a discharge conveyor for discharging the grain loaded in the grain tank B to the outside of the machine, and as shown in FIG. A grain feeding gutter 5 is installed horizontally at the bottom of the grain tank b along the longitudinal direction of the machine body a (left and right direction in FIG. It is constructed by horizontally supporting a screw with blades 7 wound at unequal pitches, and by driving the rotating shaft 6 through an appropriate transmission mechanism, the grain flows into the feeder 5. It acts to carry out the grains from the rear end of the machine a (the right end in Figure 1) toward the front end of the machine a, and the front end, which is the terminal end in the transport direction, is the front side of the machine a. side (left end side in Figure 1)
It is projected forward of the aircraft wall 1.

d is a bucket conveyor-type elevator installed on the front side of the outside of the machine body a in order to load grain to be dried into the grain tank b provided in the inner cavity of the machine body a; A bucket conveyor 11 is stretched inside the grain lifting tower 10, and the grains supplied from the supply hopper 12 provided at the lower part of the grain lifting tower 10 are carried up by the bucket 13 of the bucket conveyor 11 that rotates in circulation. This is a normal bucket conveyor-type elevator (bucket elevator) that operates to discharge from a discharge port 14 provided at the upper part of the bucket into a discharge tube section 15 that is continuous with the discharge port 14. The grain raising stroke side 11a facing forward on the front side of the machine body a, and the descending return stroke side 11b facing the machine wall 1 on the front side of the machine body a, are erected on the front side of the machine body a. . Then, at the lower part of the return stroke side 11b of the bucket conveyor 11 of the grain lifting tower 10, the terminal end of the discharge conveyor c that protrudes toward the front side of the machine body a is placed as shown in FIG. The grains brought into contact with each other and carried out to the terminal end of the discharge conveyor c are directly transferred to the grain lifting tower 1.
It is connected and communicated so that it is fed into the lower lumen of 0. Further, at the upper end of the grain lifting tower 10 of the bucket conveyor type elevator d, a discharge port 14 is opened on the side facing the machine wall 1 on the front side of the machine body a. A discharge cylinder part 15 provided to protrude toward the upper part of the machine wall 1 on the front side is connected and communicated with a receiving port e installed in the upper part of the machine wall 1 on the front side of the body a. Accordingly, the grains released by each bucket 13 of the bucket conveyor 11 in the upper circulation section of the bucket conveyor 11 are thrown into the grain tank b with the force of being released. There is.

Reference numeral f denotes a jump stand which is placed on a shelf in the inner cavity of the grain tank b, and is formed into a horizontal shelf plate shape with a flat upper surface as shown in FIGS. 1 and 2. The jump table f is placed at a ceiling portion between the front and back of the inner cavity of the grain tank b, at a height substantially corresponding to the reception opening e of the grain tank b, from the bucket 13 of the bucket conveyor type elevator d. As shown by the arrow in FIG.
The particles are arranged so that they collide at an extremely shallow acute angle of incidence α close to the horizontal, and are reflected backward and upward in grain vat b with a corresponding acute angle of reflection β, as shown in FIG. 2. It is attached to and supported by the support means 16 of the fuselage a. As a result, the grains flying along the substantially horizontal flight trajectory a are directed at an acute angle of incidence α with respect to the horizontal upper surface of the jump table f.
As shown by the arrow B in Fig. 1, the grain makes a reflexive leap towards the rear and diagonally upward of the inner cavity of grain vat B at the corresponding acute reflection angle β. This acts to increase the backward flight distance of the grain.

In the illustrated embodiment, g is the grain tank b.
This is an air guide path that guides the drying air to be sent to the grains stretched into the inner cavity, and is formed into a cylindrical shape with an air permeable partition wall 17 such as a mesh or a perforated board, and is formed inside the grain tank b. The part near the bottom of the cavity is provided so as to penetrate in the longitudinal direction of the fuselage a, and the front end is connected to the communication hole 18 provided in the machine wall 1 on the front side of the fuselage a as shown in FIG. It communicates with a duct h provided on the front side of the fuselage a through the duct h.

The duct h also serves as a mounting frame for a hot air generating device j (furnace) that supplies the air to the air guide path g,
A hot air generator j is mounted and supported on the front surface of this duct h.

K is an air exhaust path that guides the exhaust air of the dry air sent into the grain tank b from the air guide path g to the outside of the machine, and is formed by the inner cavity of the machine body a below the floor plate 4 mentioned above. There is a communication port 1 provided in the machine wall 1 on the rear side of the aircraft body a.
9, it communicates with a duct m provided on the rear surface of the fuselage a, and further communicates with a suction port of an exhaust fan n provided connected to the duct m. Further, this exhaust passage k is connected and communicated with the lower part of the grain lifting tower 10 of the bucket conveyor type elevator d mentioned above via a communication pipe o.

The embodiment device constructed in this manner operates as follows.

It is released from the bucket 13 of the bucket conveyor elevator d installed on the front side of the aircraft a, flies through the reception port e of the grain tank b provided at the upper part of the front side of the aircraft a, and enters the grain tank b. The grains being thrown into the
As shown by the arrow in Fig. 1, it flies toward the back of grain tank B with a nearly horizontal flight trajectory A, but in the middle of its flight, grain tank B The light collides with the horizontal upper surface of a horizontal shelf-shaped jump table f that is shelf-installed on the ceiling between the front and back of the interior, and is reflected.

At this time, the grains collide with the top surface of the jump table f, which is a flat table surface along a horizontal plane as shown in FIGS. 1 and 2, and the timing of the grain collision with this is Since the plane is still maintaining a nearly horizontal flight trajectory A, as shown in Figure 1, the flight path is extremely shallow and approximately parallel to the top surface of the jump platform f. Since it collides at an acute angle of incidence α and is reflected at a corresponding extremely shallow angle of reflection β, it seems to bounce forward and upward in the direction of flight without receiving almost any loss of kinetic energy in the direction of flight. become.

Therefore, the grains thrown into the grain tank b collide with the horizontal top surface of the jump table f and are reflected upwards in front of the flight direction, causing the grains to fly to the falling position by the amount of jump. The distance becomes longer and it reaches the depths of grain vat b.

As explained above, the grain dryer according to the present invention has a bucket conveyor type elevator d.
In a grain dryer configured such that the grains released from the grain tank fly through the receiving port e of the grain tank b and are thrown into the grain tank b, there is a space between the front and rear of the inner cavity of the grain tank b. A shelf-shaped jump platform f with a flat top surface is placed at a height position approximately corresponding to the reception opening e of grain tank b on the ceiling part of The grain is oriented in a posture substantially parallel to the flight trajectory A of the grain, which is released so as to fly on a substantially horizontal flight trajectory A, and the grain is oriented in a posture substantially parallel to the flight trajectory A, and the grain is oriented in a posture substantially parallel to the flight trajectory A, and the grain is oriented in a posture substantially parallel to the flight trajectory A, and the grain is oriented so as to fly along the substantially horizontal flight trajectory A, with respect to the flat upper surface of the grain. Since the structure is such that the flying grains collide with each other at an extremely shallow acute angle of incidence α and are reflected backward and upward into grain tank b at a corresponding acute angle of reflection β, the bucket The grains released from the bucket 13 of the conveyor type elevator d, fly through the receiving port e of the grain tank b, and are thrown into the grain tank b pass near the ceiling of the grain tank b. While flying almost horizontally from the side of receiving port e of grain tank b toward the back side of grain tank b,
On the horizontal upper surface of a horizontal shelf-like jump table f fixedly installed near the ceiling in the middle of the front and back inside the grain tank b, there is a shallow surface approximately parallel to the horizontal upper surface of the jump table f. The grains collide at an angle of incidence α, and at a high position near the ceiling, at a shallow reflection angle β corresponding to the angle of incidence α, the grains reflect and jump diagonally upward in the direction in which they were flying. Then, with almost no loss of kinetic energy as it is thrown into grain vat B and flies, it rises by the amount of the jump caused by the reflex jump in the middle of its flight, and from that rising position. It will begin to fly toward the back of grain tank b, and the distance it will fly toward the back of grain tank b will become longer before it falls.

Therefore, the grains that are thrown from the bucket of the bucket conveyor type elevator into the grain tank through the receiving port of the grain tank with a substantially horizontal trajectory toward the back of the grain tank. In order to increase the flying distance of grains in the direction toward the back of the tank, the flying distance of grains can be increased at a high position near the ceiling of the grain tank without installing a special drive mechanism or increasing the required power. As a result, the grains released into the grain tank from the bucket of the bucket conveyor type elevator can reach the depths of the grain tank at a high position within the grain tank, allowing the grains to be released into the grain tank. It becomes possible to push it into a state where it accumulates deep and high.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view of a grain dryer that can implement the present invention, Fig. 2 is a longitudinal sectional front view of the same device, Fig. 3 is a cross-sectional plan view of the same device, and Fig. 4 is a front view of the same device; FIG. 5 is a cross-sectional plan view of the elevator, and FIG. 6 is a longitudinal sectional front view of the lower part of the elevator. Explanation of drawing symbols, A... Grain dryer, a... Machine body, b... Grain tank, c... Discharge conveyor, d... Bucket conveyor elevator, e... Receiving port, f...
Jump stand, g...Air guide path, h...Duct, j...
...Hot air generator (furnace), k...Exhaust duct, m...
Duct, n...Exhaust fan, o...Communication pipe, α...Incidence angle, β...Reflection angle, 1...Machine wall, 10...
Grain lifting tower, 11...Bucket conveyor, 11a...
Grain lifting process side, 11b...Return process side, 12...Hopper, 13...Bucket, 14...Discharge port, 1
5... Cylinder part, 16... Support means, 17... Partition wall,
18...Communication hole, 19...Communication port, 2...Bottom plate,
3... Top plate, 4... Floor board, 5... Grain feeding gutter, 6...
Rotating shaft, 7...grain feeding blade.

Claims (1)

[Scope of utility model registration request] A bucket conveyor type elevator d is installed upright on the front side of the machine body a in which the grain tank b is installed, and the grain is connected to the discharge port 14 of the bucket conveyor type elevator d and the grain provided at the upper part of the front side of the machine body a. Grain released from the bucket 13 of the bucket conveyor type elevator d flies through the receiving port e of the tank b and enters the grain tank b.
In a grain dryer that is connected and communicated so as to be fed into the interior of the grain tank, there is provided a grain dryer with a flat top surface at a ceiling portion between the front and rear of the inner cavity of grain tank b, at a height approximately corresponding to the reception opening e of grain tank b. A shelf-shaped jump table f is used so that its flat upper surface is used to hold the grains thrown from the bucket 13 of the bucket conveyor type elevator d into the grain tank b so as to fly along a substantially horizontal flight trajectory i. The grain is arranged in a posture substantially parallel to the flight trajectory A, and the grain flying along the substantially horizontal flight trajectory A has an extremely shallow acute angle of incidence α with respect to the flat upper surface of the grain.
A grain dryer characterized in that the grain dryer is installed so that the grain collides with the grain trough b and is reflected rearward and upward in the grain tank b at a corresponding acute reflection angle β.