JPH0528473Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a grain removal device in a grain dryer.

[Prior Art] As shown in FIG. 1, the grain removal device in the grain dryer A is usually installed at the starting end of a screw conveyor 2 for tensioning, which is mounted on the upper part of the dryer main body 1. 2a protrudes forward from the machine wall 10 on the front side of the dryer main body 1, and the conveying gutter 20 at the starting end 2a
The upper surface side is opened, and the open opening on the lower end side of the discharge cylinder part 30 installed on the upper part of the elevator 3 installed upright in the front of the dryer main body 1 is connected thereto as shown in FIG. 2, and , the starting end 2 of the screw conveyor 2
A take-out gutter 4 is installed below the conveying gutter 20 at the starting end 2a, and an opening 6 is provided on the bottom surface of the conveying gutter 20 at the starting end 2a, which is closed by a shutter 5 that operates to open and close.
has been established and configured. And the dryer body 1
When taking out the grains that have been placed inside the dryer and have completed a predetermined drying process, the shutter 5 is opened as shown by the solid line in FIG. The grains carried out from inside the dryer main body 1 by the lower conveyor 11 are lifted by the elevator 3 and thrown into the starting end of the conveying gutter 20 of the screw conveyor 2 from the discharge cylinder part 30, and the grains are is allowed to flow directly downward from the open port 6 at the bottom of the conveyance gutter 20 and into the take-out gutter 4,
It is adapted to be taken out from the machine through a discharge port 40 of the take-out gutter 4.

[Problem to be solved by the invention] By the way, in the grain removal device of the grain dryer configured as described above, the opening 6 is opened by the opening operation of the shutter 5, as described above.
By operating the lower conveyor 11 at the bottom of the dryer main body 1 and the elevator 3, the dried grains are carried out from the dryer main body 1, lifted by the elevator 3, and delivered to the machine from the discharge port 40 of the take-out gutter 4. When taking it out, lift 3
In order to prevent the grains discharged from the discharge cylinder part 30 into the conveying gutter 20 of the screw conveyor 2 for tensioning from clogging there, and to prevent the conveying gutter of the screw conveyor 2 for In order to prevent grains from remaining inside the dryer main body 1 including the interior of the dryer body 1, the screw conveyor 2 for tensioning is operated and the screw 21 thereof is in a rotating state.

For this reason, when the grains lifted by the elevator 3 and released into the discharge tube section 30 are thrown into the conveying gutter 20 of the screw conveyor 2 and heading toward the opening 6 at the bottom of the conveying gutter 20, The grains are scattered when they hit the inner wall surface of the conveying gutter 20 and the rotating screw 21, come off the opening 6, and flow into the terminal end of the conveying gutter 20, and the grains are transferred to the screw conveyor 2. A problem arises in that the grains return into the dryer main body 1 little by little from the outlet 22 of the dryer, and it takes a long time to finish removing the grains from the dryer main body 1.

Further, the grains lifted by the elevator 3 and thrown into the conveying gutter 20 of the screw conveyor 2 flow toward the opening 6 on the bottom of the conveying gutter 20, pass through the opening 6, and are taken out. In order to make the flow into the gutter 4 smooth, the starting end of the screw conveyor 2 is connected to the machine wall 10 on the front side of the dryer main body 1.
Japanese Utility Model Application Publication No. 57-191436 proposes a method in which a large funnel is installed on the bottom side of the protrusion, and the proximal end of the extraction gutter 4 is connected to it. . However, with this method, the length of the screw conveyor 2 protruding from the dryer main body 1 becomes longer, which increases the length of the entire front and rear body of the grain dryer. There is a problem in that it requires a large space for work and deteriorates handling performance.

[Purpose] The present invention was made in order to solve these problems occurring in the conventional means. The length of the starting end of the screw conveyor that protrudes from the front of the dryer body is shortened so that the grains can be taken out after drying. Without increasing the length,
The purpose of the present invention is to provide a new means for preventing grains discharged from the discharge cylinder part of an elevator from flowing into the terminal side of a screw conveyor for tensioning and returning into the main body of the dryer. It is.

[Means for Solving the Problems] As a means for achieving this object, the present invention has a method in which the starting end in the conveying direction of the screw conveyor for tensioning, which is mounted on the top of the dryer main body, is connected to the dryer. Protruding forward from the machine wall on the front side of the main body, the lower end of the discharge cylinder of the elevator standing upright in the front of the dryer main body is connected and communicated with the upper surface side at the starting end of the conveying gutter of the screw conveyor. A grain removal device for a grain dryer comprising: an opening that can be opened and closed by a shutter provided at the bottom of the starting end of the conveying trough of the screw conveyor; and a removal trough installed below the opening. At the bottom of the part of the conveying gutter of the screw conveyor that is exposed inside the dryer main body, at the part near the machine wall on the front side of the dryer main body,
A separate opening is provided, and a shutter that is continuous or connected with the shutter is installed so as to be freely openable and closable, and a grain flow gutter that slopes downward toward the take-out gutter is installed on the lower surface of the open opening, and The present invention proposes a grain removal device in a grain dryer which is connected and communicated with the grain dryer.

[Example] Next, an example 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. 4 is a partially cutaway side view of a grain dryer A in which the present invention can be implemented. The screw conveyor 3 indicates an elevator installed in front of the main body 1 of the dryer.

The dryer main body 1 is a normal box-shaped one, and there is a storage section 1 inside which holds the grains to be dried.
This is a conventionally known type, which is equipped with a drying section and a lower conveyor 11 for carrying out at the bottom.

The screw conveyor 2 for tensioning, which is mounted on the upper part of the dryer main body 1, is a normal type consisting of a conveying gutter 20 and a screw 21 that is pivotally supported inside the conveying gutter 20.
The starting end 2a in the conveyance direction is made to protrude forward from the machine wall 10 on the front side of the dryer main body 1, and the conveying gutter 20 of the starting end 2a protrudes from the machine wall 10.
The upper surface side of is open as shown in FIG. As shown in FIG. 5, the opening at the lower end of the discharge cylinder part 30 installed at the upper end of the elevator 3 is connected to the opening at the upper surface of the starting end 2a.
Bucket conveyor 3a stretched inside the elevator 3
The grains lifted and discharged into the discharge tube section 30 flow into the conveying gutter 20 at the starting end section 2a.

The starting end 2a of the screw conveyor 2
An opening 6 that opens downward is provided at the bottom of the conveying gutter 20, and the shaft 21 of the screw 21 is inserted into the opening 6 that opens downward.
A shutter 5 is installed to open and close the opening 6 by the rotational movement of a bracket 50 rotatably fitted and supported on a shaft, and below the shutter 5, as shown in FIG. The upper opening of the take-out gutter 4 is connected and communicated with the cylindrical portion 30 so as to extend downward, and the grains lifted by the elevator 3 are transferred to the discharge cylindrical portion 30 when the shutter 5 is opened and operated. Once released, the grains flow through the conveying gutter 20 at the starting end 2a of the screw conveyor 2, as shown by the double-lined arrow in FIG. It flows into the gutter 4 and is taken out from the machine through its discharge port 40.

Therefore, the conveying gutter 20 of the screw conveyor 2 is located on the bottom surface of the part exposed to the storage section 1a in the dryer main body 1, and in the part near the machine wall 10 on the front side. An opening a opening to the storage section 1a is opened so as to extend an opening 6 opened at the bottom of the conveying gutter 20 at the starting end 2a toward the terminal end side of the screw conveyor 2 in the conveying direction. be. A shutter b, which is formed by extending the shutter 5 provided in the opening 6, is installed in the opening a so as to open and close in conjunction with the opening and closing operation of the shutter 5. Further, below the opening a, there is a guide for guiding the grains flowing out from there toward the take-out gutter 4 disposed in front of the machine wall 10 on the front side of the dryer main body 1 mentioned above. A grain trough c is installed which is inclined so that the grain trough c is tilted downward.
It opens outward on the front side of the dryer main body 1 through a communication port 10a provided in the machine wall 10 on the front side of the dryer main body 1, and connects to the peripheral wall 4a of the take-out gutter 4 disposed there. Connect to the communication port you have opened, and by doing so,
The grains flowing down into the grain flow trough c are configured to flow into the take-out trough 4.

The circumferential wall 4a of the take-out gutter 4 is formed vertically long so that the connection and communication with the sloping descending end of the grain gutter c is made above the funnel-shaped bottom wall 4b of the take-out gutter 4. A funnel-shaped bottom wall 4
The position b has been lowered.

Next, FIG. 7 shows another embodiment. In this embodiment, a communication port 10a opened in the machine wall 10 on the front side of the dryer main body 1 is provided in the machine wall 10 in order to connect and communicate the end of the grain flow gutter c on the downward slope side with the takeout gutter 4. The only difference from the previous embodiment is that the part that joins the end of the grain trough c on the downward slope side is cut out to form a notch shape, and the rest of the structure is the same as that in the sixth embodiment described above. Same as the example shown in the figure,
Components having the same effect will be designated by the same reference numerals and detailed explanations will be omitted.

Next, FIG. 8 shows a further different embodiment.
This embodiment is similar to FIGS. 6 and 7 described above in that the grain flow gutter c disposed inside the dryer body 1 is formed integrally with the peripheral wall 4a of the take-out gutter 4. Other than the difference from the embodiment shown, the rest of the structure is the same as the embodiment described above, and the same constituent members are given the same reference numerals and detailed explanations will be omitted.

[Operation] The embodiment device configured as described above operates as follows.

In order to carry out the grains that have completed the drying process from inside the dryer body 1 and take them out of the machine from the take-out gutter 4, the shutter 5 is opened and the screw conveyor 2 protrudes from the dryer body 1 to the outside of the machine. starting end 2a of
When the opening 6 installed at the bottom of the conveyor gutter 20 of the screw conveyor 2 is opened to communicate with the take-out gutter 4, the screw conveyor 2 is located inside the dryer main body 1 at the bottom of the conveyor gutter 20. At the same time, the opening a installed at the front side of the part near the machine wall 10 is also opened.

For this reason, the grains that are lifted by the bucket conveyor 3a of the elevator 3 and flow into the starting end 2a of the screw conveyor 2 from the discharge tube section 30 collide with the screw 21 which is rotated and are scattered. When the grains begin to flow toward the terminal end side of the conveyance gutter 20 in the conveying direction, the grains flow out from the open port a, are guided from the grain flow gutter c below it, and are collected in the take-out gutter 4, Together with the grains flowing up and down the conveyance gutter 20, they are taken out of the machine from the discharge port 40, and the scattered grains are transferred inside the conveyance gutter 20 by the screw 21 toward the discharge port 22 at the end. This prevents the dryer from being thrown back into the dryer main body 1.

[Effects of the invention] As explained above, the grain removal device of the grain dryer according to the present invention configured as described above is capable of lifting grains by the elevator 3 and transporting the grains from the discharge tube part 30 to the starting end of the screw conveyor 2. When the grains poured into the portion 2a flow up and down through the starting end 2a and flow into the take-out gutter 4, they collide with the screw 21 etc. of the screw conveyor 2 which is in operation, and the screw conveyor 2 Even if the grains jump into the terminal end side of the conveying gutter 20, the grains flow out from the open port 6 and the open port a separately opened at the bottom of the conveying gutter 20 located inside the dryer main body 1. , the grain flows back to the take-out trough 4 through the grain trough c.

In this way, the screw 21 in operation
The part of the conveying gutter 20 located inside the dryer main body 1 that returns the grains that fly into the terminal end of the conveying gutter 20 of the screw conveyor 2 to the take-out gutter 4 due to contact with and being repelled by the an opening a provided in the
Since the grain flow gutter c slopes downward toward the take-out gutter 4 provided below the opening a, the starting end side of the conveying gutter 20 of the screw conveyor 2 is connected to the dryer main body 1.
without increasing the length protruding from the front side.
While the projecting length of the starting end side of the conveying gutter 20 remains short, the grains that have jumped into the terminal end side of the conveying gutter 20 can be returned to the extraction gutter 4.

Therefore, in order to prevent clogging of grains from occurring, the screw conveyor for loading is operated to take out the dried grains, and at the same time, the screw conveyor is made to protrude from the front of the main body of the dryer. When the projecting length of the starting end of the screw conveyor is shortened and the overall length of the grain dryer is not increased, the grains discharged from the ejection cylinder of the elevator are It can be prevented from flowing into the end side of the Yukon conveyor and returning into the main body of the dryer.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway side view of the conventional means;
The figure is a partially cutaway front view of the main parts of the same as above, Fig. 3 is a longitudinal sectional side view of the main parts of the same as above, Fig. 4 is a partially cutaway side view of the embodiment of the device of the present invention, and Fig. 5 is the same as above. 6 is a longitudinal sectional side view of the essential parts of the same as above, FIG. 7 is a vertical sectional side view of the essential parts of another embodiment of the device, and FIG. 8 is a further different embodiment. FIG. 3 is a vertical side view of the main parts of the device. Explanation of drawing symbols, A... Grain dryer, 1... Dryer main body, 1a... Storage section, 10... Machine wall, 10
a...Communication port, 11...Lower conveyor, 2...Screw conveyor, 2a...Starting end, 20...Transport gutter, 21...Screw, 21a...Shaft, 22
...Discharge port, 3...Elevator, 3a...Bucket conveyor, 30...Discharge cylinder section, 4...Takeout gutter, 4a
...Peripheral wall, 4b...Bottom wall, 40...Discharge port, 5...
...Shutter, 50...Bracket, 6...Open port, a...Open port, b...Shutter, c...Grain gutter.

Claims (1)

[Scope of utility model registration request] The starting end 2a of the screw conveyor 2 for tensioning, which is mounted on the upper part of the dryer main body 1, in the conveying direction is made to protrude forward from the machine wall 10 on the front side of the dryer main body 1, so that the screw conveyor 2 The lower end of the ejection cylinder part 30 of the elevator 3 erected in front of the dryer main body 1 is connected and communicated with the upper surface side of the starting end 2 a of the conveying gutter 20 . In the grain removal device of the grain dryer, an opening 6 which can be opened and closed by a shutter 5 is opened at the bottom of the starting end 2a, and a extraction gutter 4 is installed below the opening 6. At the bottom of the part of the conveying gutter 20 exposed inside the dryer body 1, the machine wall 10 on the front side of the dryer body 1
A separate opening a is opened in the area near the outlet, and a shutter b that is continuous or connected with the shutter 5 is installed so as to be openable and closable. A grain take-out device in a grain dryer, which is equipped with a grain gutter c connected and communicated with the take-out gutter 4.