JPH02221028A - Equalizer in grain dryer - Google Patents

Abstract

PURPOSE:To make a particular driving means and a troublesome mechanism dispensable by horizontally providing an upper screw conveyor for charging, consisting of a conveying gutter and a screw auger journaled therein, on the upper part of a machine body, so as to communicate the beginning end side in the conveying direction to the discharge port of an elevator. CONSTITUTION:When grain is elevated with an elevator 3 and supplied to the beginning end part of an upper screw conveyor 2, the grain is discharged from the opening 20a on the terminal end of a conveying gutter 20 to the storage part 10 in a machine body 1 in the beginning. When the top part of the accumulated grain layer reaches the opening 20a of the end of the gutter 20, the terminal end side of a screw auger projected from the gutter 20 and exposed carries the discharged grain on the top part of accumulated layer in the conveying direction. Hereby, the screw auger 21 functions as an equalizer, the space of the storage part 10 can be effectively utilized up to the conveyor 2, and when the full capacity of the storage part 10 is instituted as a certain value, the horizontal mounting position of the conveyor 2 can be lowered and also the machine height can be lowered.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention involves loading a predetermined amount of grains to be dried into a grain storage section installed in a box-shaped machine body, and then storing the grains in a drying section where hot air is supplied. The present invention relates to an improvement in an equalizing device for evenly distributing grains into a grain storage section in a grain dryer that circulates the grains for drying.

The equalizing device in the grain dryer of the above-mentioned type is usually formed into a box shape as shown in FIG. A rotating rotating body is mounted so that the rotating body can be driven and rotated by a driving means such as a motor M, and an upper screw for tensioning is mounted horizontally on the top of one machine body L. The end side of the conveyor 2 in the conveying direction is communicated with the elevator 3 (packet elevator - ), the grains are fed to the starting end of the upper screw conveyor 2 in the conveying direction, and are fed from the discharge port of the upper screw conveyor 2 to the upper surface of the rotating body, so that the storage section is The liquid is swung out toward the four circumferences within the storage section 10, and is evenly distributed and released to each location within the storage section 10.

In addition, as another equalizing device, as shown in Fig. 2, an upper screw conveyor 2 for loading horizontally suspended above the inner cavity of the machine body 1 is formed long so as to substantially cross the upper part of the inner cavity of the machine body 1. Then, discharge ports c and d are opened on the bottom surface of the conveying machine 20 at the starting end side and the terminal end side in the conveying direction, respectively.

Shutters that open and close are provided respectively for this, and by opening and closing these shutters alternately by a driving means such as a motor M, the grains are sequentially switched to different parts in the storage section 10 in one machine body 1 and released. In this way, there is a means to evenly distribute the grains to be loaded.

These conventional equalizing means require a dedicated mechanism for equalizing the grain to be loaded into the storage section 10 and a drive means to drive it, which increases the cost and increases the cost. If the accumulated particles reach the height of the rotating body, the shutter that opens and closes, and its drive mechanism, the mechanism will malfunction, so the roof of the machine should be raised and the rotating body As a result, the upper screw conveyor 2 must be installed far above the height of the grain piled up at the end of loading, which raises the problem of raising the height of the machine body and making it inconvenient to handle. It's out.

The present invention was made in order to solve these problems, and does not require any special drive means or complicated mechanism, and can keep the height of one aircraft low, and The purpose of this invention is to provide a new means for achieving equalization of grains.

As a means for achieving this object, the present invention provides an upper screw conveyor for tensioning consisting of a conveyor and a screw auger pivotally supported inside the conveyor. It is installed horizontally on the upper part of the machine body in communication with the discharge port, and its conveyor is formed short in the conveyance direction and has an open end at the end, and the screw auger is formed long in the conveyance direction and the end side is formed short in the conveyance direction. The present invention proposes a proportioning device for a grain dryer, which comprises a grain dryer, in which the grain dryer is made to protrude in an exposed state from an open opening at the terminal end of the conveyor.

Next, embodiments will be described in detail with reference to the drawings. Note that the same reference numerals in the drawings as in the previous means are used for components having the same effect.

FIG. 3 is a longitudinal side view of a grain dryer in which the present invention can be implemented, and in the figure, 1 is a machine body, 2 is an upper screw conveyor for loading, and 3 is an elevator.

The body 1 is a normal box-shaped structure, and a storage part 10 for storing grains to be dried is formed in the upper half of the interior so as to share the mechanism of the body 1, and in the lower half, As shown in FIG. 4, a grain flow path 110 and a hot air supply path 111
A grain drying section 11 consisting of a and an air exhaust passage 112 is installed. The hot air supply path 111 of the drying section 11 communicates with a hot air generating device 12 and a blower 13 provided on the front side of the machine body l (on the right side in FIG. 3).

Further, a rotary shutter 14 is provided at the lower end of the grain flow path 11O of the drying section 11, and a lower screw conveyor 15 for discharge is installed at the bottom of the inner cavity of the body 1 below the rotary shutter 14.

The screw conveyor 2 consists of a conveyor 20 and a screw auger 21 that is pivotally supported in the inner cavity of the conveyor 20.
It is hung horizontally in the upper part of the inner cavity so that the conveyance direction is the front-rear direction of the machine body 1, and its starting end in the conveyance direction is connected to the ejection cylinder part on the upper end side of the elevator 113 installed on the outer surface of the machine body 1. It is the same as the upper screw conveyor 2 for loading in the previous grain dryer A in that the grains lifted by the lift 4113 are discharged into the storage section 10 in the machine body 1. As shown in FIG. 3, the carrier 20 is formed to have a very short length that is approximately half or less of the longitudinal length of the machine body l, and has an open opening 20a at the terminal end thereof.
It will be opened as such. Further, the screw auger 21 extends long with its terminal end side in the conveying direction protruding from the open opening 20a at the terminal end of the conveying machine 20 and being exposed;
Its end should reach the front wall of the fuselage l.

As a result, when the grains lifted by the elevator ja3 are received at the starting end of the Wi feed gutter 20 and transported by the screw auger 21, when the inside of the storage section 10 is empty, the terminal end of the transporter 20 The grains are discharged from there into the storage section 10 using the opening 20a of the storage section 10 as a discharge port.As a result, the upper surface of the grain layer deposited within the storage section 10 rises, and the top of the upper surface becomes the first layer. When the open port 20a of the conveyor 20 is reached as shown by the solid line (A) in FIG.
The terminal side of 1 is in contact with the top of the sediment layer of grains that have accumulated and swelled up, and the grains in contact with it are conveyed so as to be leveled in the conveying direction, and the top of the sediment layer of grains is conveyed. In Figure 3, as shown by the chain lines, (b) φ French), ni), and (e), move it toward the front side of the body cavity, and spread it into the storage part 10 in an evenly divided state. It's Nishide.

At this time, when the top of the grain layer reaches the front end side of the inner cavity of the storage section 10 (the terminal end side in the conveying direction of the screw auger 21), the grain layer around the screw auger 21 is By being surrounded by
The height of the piled-up height of the fluidized bed of grains flowing in the conveyor 20 increases, causing clogging of grains in the conveyor 20. Therefore, the above-mentioned (00 ), (ha), ni) 挟(匍...) corresponding to the level of each grain,
A level sensor S for the amount of grain is provided, and the tensioning is stopped when the grains are tensioned to the expiry position or to a predetermined height.

In this case, as shown in FIG. 5, if the top side of the conveyor 20 is also opened, or if a window hole is formed on the top side to provide an opening 20b, the grains can be The top of the sedimentary layer has been leveled out to the front end inside the storage section 10,
When the pile height of the fluidized bed of grains flowing and being conveyed in the conveyor 20 becomes high, the grains are transferred to the base end side of the conveyor 20 through the open opening 20b on the upper surface side. The grain layer that overflows from side to side and accumulates in the storage section 10 fills the space above the hem on the rear side of the storage section 10, so the grain capacity when the storage section 10 expires is The space within the storage section 10 can be used more effectively.

In addition, the conveyor 20 of the upper screw conveyor 2 for tensioning
As shown in FIG. 6, the terminal side is formed into a double wall so that the outer wall side or the inner wall side thereof can be slid in the longitudinal direction, so that the open opening 20a on the terminal side The position may be made to be freely displaceable in the transport direction with respect to the machine body 1, and in order to reduce the amount of remaining grains when the grains inside the machine body 1 are discharged to the outside after the drying process.

As shown in FIG. 7, there are cases where the posture is switched to a tilted and rotated posture.

Incidentally, the lift 4111i3 is a normal type with a packet conveyor (not shown) installed inside the grain lifting tower 3a, and the lower end of the grain lifting tower 3a is connected to the lower part of the lower part for discharging installed horizontally at the bottom of the machine body l. It is connected and communicated with the terminal end side of the screw conveyor 15.

The embodiment device constructed in this manner operates as follows.

If the grains are lifted by the elevator 3 and supplied to the starting end of the upper screw conveyor 2, the grains will be.

Initially, grains are discharged from the open port 20a at the end of the carrier 20 to the storage section 10 in the machine body 1, and the top of the deposited layer of grains reaches the open port 20a at the peripheral end of the carrier 20. When this happens, the terminal end side of the screw auger 21 that protrudes and is exposed from the conveyor 20 carries out the grains released to the top of the grain accumulation layer in the conveying direction, and transfers them to the front end side of the storage section IO. Things will start to even out.

For this reason, the screw auger 21 of the upper screw conveyor 2 for filling comes to act as an equalizing device, and the space until it reaches the upper screw conveyor 2 is effectively used for storing filO installed in the machine body 1. be made available to the public. Further, if the capacity of the storage section 10 at the time of expiration is made constant, the horizontal mounting position of the upper screw conveyor 2 can be lowered, and the machine height can be kept low.

As explained above, the equalizing device for the grain dryer according to the present invention moves the upper screw conveyor 2 for tensioning, which is composed of the conveyor 20 and the screw auger 21 supported inside the conveyor 20, in the direction of conveyance thereof. The starting end side is connected to the discharge port of the elevator 3 and installed horizontally in the upper part of the machine body 1, and the transport machine 2
0 is formed short in the conveying direction and has an open opening 2 on the terminal end side.
The upper screw conveyor 2 Since the screw auger 21 performs an equalizing action, no special driving means or complicated mechanism is required, and the height of each machine body 1 can be kept low to increase the distribution of grains. You will be able to obtain even distribution.

Furthermore, by opening the opening 20b on the upper surface side of the conveyor 20, the capacity of the storage section 10 at the time of expiration can be increased to 4
11 The space within the body cavity can be utilized more effectively.

[Brief explanation of the drawing]

FIG. 1 is a vertical side view of a grain dryer using a conventional equalizing device, FIG. 2 is a vertical side view of a grain dryer using another conventional equalizing device, and FIG. A vertical side view of a grain dryer that can implement the equalization device according to the present invention, FIG. 4 is a vertical front view of the same as above, FIG. 5 is a vertical side view of another embodiment of the same as above, and FIG.
The figure is a longitudinal side view of yet another embodiment, and FIG. 7 is a longitudinal side view of another embodiment. Explanation of drawing symbols A: Grain dryer a: Rotating shaft b: Rotating body cod: At discharge port M: Motor S: Level sensor
・Airframe 1a... Front wall 10... Storage section 11... Drying section 110... Downstream path
111...Feeding channel 112...Exhaust channel 12
... Hot air generator 13 ... Air blower @ 14
...Shutter 15...Lower screw conveyor 2...Upper screw conveyor 20...Conveyor 20a/2021...Screw auger 3...Elevator 3a...Grain lifting tower b...
Open mouth permit applicant: Sansui Seisakusho Co., Ltd. Figure 1 110112 111 glo 112

Claims (2)

[Claims] (1) The upper screw conveyor 2 for tensioning, which is composed of a conveyor 20 and a screw auger 21 pivotally supported inside the conveyor 20, is connected to the discharge port of the elevator 3 with its starting end in the conveying direction, and A conveyor 20 is placed horizontally on the upper part of the interior.
is formed short in the conveyance direction and has an open opening 20 on the terminal end side.
A, the screw auger 21 is formed long in the conveying direction, and its terminal end side is exposed and protrudes from the open opening 20a at the terminal end of the conveying machine 20. (2) The equalizing device in a grain dryer according to claim 1, wherein the conveyor 20 has an open opening 20b on the upper surface side.