JP7021697B1 - Grain dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grain dryer provided with a mechanism for discharging grains remaining on a lower screw inside an airframe. SOLUTION: A bucket elevator is provided on a grain drying section to provide a grain storage section, and connects a lower screw conveyor horizontally installed at the bottom of the grain drying section and an upper screw conveyor horizontally installed above the grain storage section. In a grain dryer equipped with a blower for discharging the exhaust air that has passed through the grain drying section to the outside of the machine, and a connecting gutter for connecting the lower screw conveyor and the lower part of the bucket elevator. The bottom surface of the conveyor case of the lower screw conveyor is formed on a porous wall surface, a blower box is provided below the conveyor case, and the blower box is provided with a blower for blowing air inside the blower box. Is characterized by forming a directional inclined slit so that the air blown by the blower is blown toward the transport direction of the lower screw conveyor. [Selection diagram] Fig. 1

Description

The present invention relates to a grain dryer, and more particularly to a grain dryer provided with a residual grain discharge mechanism.

Conventionally, it is well known in Patent Document 1 and the like that this type of grain dryer is provided with an automatic cleaning operation mode in which grains and dust remaining inside the dryer are discharged to the outside of the machine after the drying operation is completed. Since the residual grain in the machine is removed by this automatic cleaning operation, there is an advantage that different varieties and brands do not mix with each other when continuously drying raw grains of different varieties even if they are the same paddy rice. ..

However, even if the grain to be dried next time is of the same variety as the previous one, or even if the grain is harvested from the same field as the previous time, it is not always necessary to clean it after each drying, and in that case, it is rather dried. It may cause a delay in work. In addition, in the automatic cleaning operation, relatively light dust can be removed by the exhaust fan, but the grains remaining on the bottom of the screw conveyor, bucket elevator, etc. cannot be completely discharged, and in order to be more perfect. It was necessary to manually discharge the residual grains inside the machine body with an air gun or a broom (see [0038] of Patent Document 1).

Japanese Unexamined Patent Publication No. 2016-61521

In view of the above problems, an object of the present invention is to provide a grain dryer provided with a mechanism for discharging grains remaining on a lower screw inside the machine body.

In order to achieve the above object, the grain dryer of the present invention
A grain storage section is provided on the grain drying section, and a bucket elevator is erected to connect the lower screw conveyor located horizontally at the bottom of the grain drying section and the upper screw conveyor located horizontally above the grain storage section. , Equipped with an elevator that exhausts the exhaust air that has passed through the grain drying section to the outside of the machine.
A connecting gutter for connecting the lower screw conveyor and the lower part of the bucket elevator is provided .
The bottom surface of the conveyor case of the lower screw conveyor is formed on a porous wall surface, a blower box is provided below the conveyor case, the blower box is provided with a blower for blowing air inside the blower box, and the porous wall surface is provided with a blower. An inclined slit having a direction is formed so that the air blown by the blower is blown toward the transport direction of the lower screw conveyor, and the dried grains remain on the lower screw conveyor after the work of discharging the grains to the outside of the machine is completed. It is characterized by providing a control unit equipped with an automatic cleaning operation mode for discharging grains to the outside of the machine.

In order to achieve the above object, the grain dryer of the present invention
A grain storage section is provided on the grain drying section, and a bucket elevator is erected to connect the lower screw conveyor located horizontally at the bottom of the grain drying section and the upper screw conveyor located horizontally above the grain storage section. , Equipped with an elevator that exhausts the exhaust air that has passed through the grain drying section to the outside of the machine.
A connecting gutter for connecting the lower screw conveyor and the lower part of the bucket elevator is provided, the bottom surface of the conveyor case of the lower screw conveyor is formed on a porous wall surface, a blower box is provided below the conveyor case, and the blower and the blower are provided. The box is communicated with the communication pipe, a damper is provided at the connection portion between the blower and the communication pipe, and the blower of the blower is used for cleaning the lower screw conveyor by the damper, and the perforated wall surface is covered. , An inclined slit having directionality is formed so that the air blown by the blower is blown toward the transport direction of the lower screw conveyor.
After the work of discharging the dried grains to the outside of the machine is completed, the damper uses the blower of the blower to clean the lower screw conveyor, and has an automatic cleaning operation mode in which the grains remaining in the machine are discharged to the outside of the machine. It is characterized by providing a control unit.

The control unit is characterized in that when the variety brand of the grain to be loaded this time and the variety brand of the grain to be loaded last time are different, the automatic cleaning is performed by the automatic cleaning operation mode before the grain loading operation. And.
Further, the connecting trough is divided into upper and lower parts by a partition plate, the upper portion thereof is formed in a grain transport chamber, and the lower portion thereof is formed in a blower chamber, and the partition plate is oriented so as to be blown toward the bucket elevator side. The grain transport chamber is formed in a slanted slit having a property, and the grain transport chamber communicates with the bucket elevator so as to transfer the grain to the bucket elevator side, while the blower chamber blows toward the bottom of the bucket elevator. It is characterized in that it communicates with the bucket elevator and further communicates with the blower box and the blower chamber so that the air from the blower is blown.

In the grain dryer of the present invention, a grain drying section is placed on the grain drying section to provide a grain storage section, and a lower screw conveyor horizontally installed at the bottom of the grain drying section and an upper screw conveyor horizontally installed above the grain storage section are provided. A bucket elevator to be connected is erected, an exhaust fan is provided to exhaust the exhaust air that has passed through the grain drying section to the outside of the machine, and a connecting gutter for connecting the lower screw conveyor and the lower portion of the bucket elevator is provided . The bottom surface of the conveyor case of the screw conveyor is formed on a porous wall surface, a blower box is provided below the conveyor case, the blower box is provided with a blower for blowing air inside the blower box, and the blower is provided on the porous wall surface. An inclined slit having a directionality is formed so that the air blown by the lower screw conveyor is blown toward the transport direction of the lower screw conveyor, and the grain remaining on the lower screw conveyor is removed after the work of discharging the dried grain to the outside of the machine is completed. Since a control unit equipped with an automatic cleaning operation mode for discharging to the outside of the machine is provided, grain remaining on the lower screw inside the machine can be discharged without human intervention.

In the grain dryer of the present invention, a grain drying section is placed on the grain drying section to provide a grain storage section, and a lower screw conveyor horizontally installed at the bottom of the grain drying section and an upper screw conveyor horizontally installed above the grain storage section are provided. A bucket elevator to be connected is erected, an exhaust fan is provided to exhaust the exhaust air that has passed through the grain drying section to the outside of the machine, and a connecting gutter for connecting the lower screw conveyor and the lower portion of the bucket elevator is provided. The bottom surface of the conveyor case of the screw conveyor is formed on a perforated wall surface, a blower box is provided below the conveyor case, the blower and the blower box are communicated with each other by a communication pipe, and a connection portion between the blower and the communication pipe is connected. A damper is provided in the damper, and the blower of the blower is used for cleaning the lower screw conveyor, and the blower of the blower is blown onto the porous wall surface in the transport direction of the lower screw conveyor. After forming a directional inclined slit and discharging the dried grain to the outside of the machine, the damper uses the blower of the blower to clean the lower screw conveyor to remove the grain remaining in the machine. Since a control unit equipped with an automatic cleaning operation mode for discharging to the outside of the machine is provided, grain remaining on the lower screw inside the machine can be discharged without human intervention.

When the variety brand of the grain to be loaded this time and the variety brand of the grain to be loaded last time are different, the control unit is configured to perform automatic cleaning by the automatic cleaning operation mode before the grain loading operation. It is possible to prevent the stuffed grain from mixing with the stuffed grain this time.
Further, the connecting trough is divided into upper and lower parts by a partition plate, the upper portion thereof is formed in a grain transport chamber, and the lower portion thereof is formed in a blower chamber, and the partition plate is oriented so as to be blown toward the bucket elevator side. The grain transport chamber is formed in a slanted slit having a property, and the grain transport chamber communicates with the bucket elevator so as to transfer the grain to the bucket elevator side, while the blower chamber blows toward the bottom of the bucket elevator. Since the blower box and the blower chamber are communicated with each other so as to communicate with the bucket elevator and further to supply the air from the blower, the grain remaining in the connecting trough can be conveyed to the elevator. In addition, the grain remaining on the bottom of the elevator can be wound up by a blast and collected in an operating bucket.

It is an overall perspective view of the grain dryer in embodiment of this invention. It is a front sectional view of the grain dryer of FIG. It is explanatory drawing of an example of the initial screen of an operation part. It is explanatory drawing of an example which registers a grain grade brand. It is a front sectional view of the lower screw conveyor. It is a top view of the bottom surface of a conveyor case. FIG. 6 is a cross-sectional view taken along the line AA of FIG. It is sectional drawing of the connecting gutter which connects the transport end part of the lower screw conveyor, and the supply port of a bucket elevator. It is sectional drawing of the grain dryer which connected the blower and the blower box by the communication pipe. It is sectional drawing of a blower.

An embodiment of the present invention will be described.
FIG. 1 shows an overall perspective view of a grain dryer according to an embodiment of the present invention. FIG. 2 shows a front sectional view of the grain dryer of FIG.
The grain dryer 1 according to the embodiment of the present invention includes a grain drying section 3 at the bottom and a grain storage section 2 placed on the grain drying section 3, and hot air is provided in the center of the grain drying section 3 in the front-rear direction. A chamber 4 is formed, and a pair of exhaust chambers 5 are provided on both sides of the hot air chamber 4 with the hot air chamber 4 interposed therebetween. A pair of grain drying chambers 6 connected to 2 are formed. The front end surface of the hot air chamber 4 is connected to a burner (not shown) as a hot air generator, and the hot air generated by the burner is supplied into the hot air chamber 4. The grain drying chamber 6 is formed by a perforated wall (screen), hot air in the hot air chamber 4 passes through the grain drying chamber 6 and flows into the exhaust chamber 5, and is outside the machine by a blower 36 described later. It is configured to be exhausted to.

A burner box 8 containing the burner is arranged on the front wall of the grain drying portion 3, while the back wall surface of the grain drying portion 3 covers a pair of exhaust ports 14 on the rear end surface of the exhaust chamber 5. A fan box 15 is provided as described above, and a blower 36 (FIG. 9) is attached to the central portion of the fan box 15. Further, a control box (not shown) having a built-in control unit is housed in the burner box 8, and the cover body 8a on the front side thereof is composed of a liquid crystal touch panel electrically connected to the control box and the like. The operation unit 7 is provided.

The bucket elevator 9 is erected close to one side of the burner box 8. The bucket elevator 9 lifts grains that have passed through the grain drying chamber 6 into the grain storage section 2.
A rotary valve 11 that is intermittently driven to allow the grains in the grain drying chamber 6 to flow down is horizontally installed at the lower end of the grain drying chamber 6, and falls from the rotary valve 11 at the bottom of the grain drying chamber 3. A grain collecting hopper 12 for receiving the grain to be grain is provided, and a lower screw conveyor 13 is horizontally provided at the center of the grain collecting hopper 12. A connecting gutter 10 for connecting the transport end portion of the lower screw conveyor 13 and the supply port of the bucket elevator 9 is provided.

A motor 9a for driving the bucket elevator 9 is provided on the upper part of the bucket elevator 9, and the discharge portion thereof is lateral to the top plate portion of the grain storage portion 2 by switching a switching valve (not shown). It is connected to the upper screw conveyor 19 to be installed or a discharge unit (not shown) to the outside of the machine. A rotary dispersion board 16 for evenly charging grains into the grain storage section 2 is rotatably installed at the transport end portion of the upper screw conveyor 19.

FIG. 3 shows an explanatory diagram of an example of the initial screen of the operation unit. FIG. 4 shows an explanatory diagram of an example of registering a grain grade brand.
The grain dryer 1 according to the embodiment of the present invention includes a registration unit for storing and registering a variety brand of grains to be dried in advance.
As shown in FIG. 3, when the "tension" button 22 displayed on the initial screen of the touch panel 7a is selected in the operation unit 7 while the operation of the dryer is stopped, the touch panel 7a is displayed in the left column of FIG. The "Grain Type Setting" screen is displayed as shown.

Next, when "fir" is selected on the "grain type setting" screen, the "variety brand selection" screen is always displayed on the touch panel 7a. Here, because of the initial settings, each field on the "Selection of product type" screen is blank.

Then, the process proceeds to the "Register product type" screen, and the product type of "Fir" is registered. Here, after inputting "Koshihikari" on the touch panel 7a, the "register" button is selected, and the "fir" variety brand "Koshihikari" is registered in the registration unit.
After that, on the "type / brand selection" screen displayed on the touch panel 7a, the type / brand of "fir" registered in the registration unit is displayed. Here, two types of "fir" that have been registered in the registration unit are displayed.

The grain dryer 1 according to the embodiment of the present invention has specifications that can be monitored via the Internet or the like, and the grain variety brand can be registered from a remote location by a mobile terminal or the like through a communication means such as the Internet.
When registering a grain variety brand using the mobile terminal or the like, as shown in the right column of FIG. 4, for example, the variety brand can be registered for each of a plurality of dryers.
First, on the "dryer selection" screen displayed on the operation screen of the mobile terminal or the like, the dryer for registering the grain variety brand is selected. Here, "Unit 1" is selected.

When "Unit 1" is selected on the "Dryer selection" screen, the "Category brand selection" screen is displayed next. Here, because of the initial settings, each field on the "Selection of product type" screen is blank.
Then, the process proceeds to the "Enter variety brand" screen, and the grain variety brand is registered. Here, "Koshihikari" is input to select the type and brand of "fir", and the "input complete" button is selected to transmit to the "Unit 1" of the grain dryer through the communication means, and the "Unit 1" is described. Register the "fir" variety brand in the registration section of "".

Although the "grain type setting" screen is omitted here, the grain type can be selected on the "grain type setting" screen. Further, after the grain variety brand is registered in the registration unit of each grain dryer through the communication means, the variety brand registered in the registration unit is displayed on the "variety brand selection" screen.

The grain dryer 1 in the embodiment of the present invention is provided with an automatic cleaning operation mode in which the grain remaining in the machine is discharged to the outside of the machine after the operation of discharging the dried grains to the outside of the machine is completed in the control unit.
Further, the grain dryer 1 includes an input setting unit for inputting and setting a variety brand of the grain to be squeezed, and a comparison unit for comparing the variety brand input and set this time with the variety brand previously input and set in the input setting unit. ..

Prior to the grain loading operation, the operator selects the "pasting" button 22 displayed on the initial screen of the touch panel 7a shown in FIG. 3, and the grain variety brand to be pasted into the grain dryer 1 this time is described. Input settings are made in the input setting section. At that time, if it is registered in the registration unit in advance, it can be selected from the "product type brand selection" screen displayed on the touch panel 7a and input and set in the input setting unit. Further, if it is not registered in the registration unit, it can be input and set in the input setting unit by newly inputting a product type brand from the "product type brand registration" screen. It is assumed that the product type brand newly input from the "product type brand registration" screen can be selectively registered in the registration unit, and when registered, it is selected from the "product type brand selection" screen and input and set in the input setting unit. It may be that.

After inputting and setting the variety brand of the grain to be put into the dryer in the input setting unit, the comparison unit compares the variety brand input and set this time in the input setting unit with the variety brand previously input and set. Then, as a result of comparison in the comparison unit, when these two types of brands are different, the control unit performs an automatic cleaning operation in the automatic cleaning operation mode before the grain loading operation.

Since the grain dryer 1 in the embodiment of the present invention performs the automatic cleaning operation in the automatic cleaning operation mode at the timing when the type and brand of the grain to be dried is switched, the drying work efficiency is not lowered as compared with the case of cleaning each time. It is possible to prevent accidental mixing of different types of brands.

Further, since the input setting of the grain variety brand to be put into the dryer can be selected from a plurality of variety brands registered in advance in the registration unit, the input can be made by the touch panel 7a or the like. You can save time and prevent typos.

Further, if the specifications can be monitored via the Internet or the like and the operation unit 7 can be accelerated by a mobile terminal or the like through a communication means such as the Internet, the grain type brand to be put into the dryer can be transferred to the input setting unit from a remote location. Input settings can be made and convenience is improved.

If the operation unit 7 can be accessed by a mobile terminal or the like, the user can register field data including GPS information, scheduled cutting date and time, etc. in the dryer in addition to the grain variety brand. Further, at the time of cutting or at the timing of transporting the cut grain, it is also possible to select a dryer to be loaded and input and set the type and brand of the grain to be loaded in the input setting unit.

When the grain type brand to be put in next time is input and set in the input setting unit at the timing during the discharge operation of the grain dryer 1 by the mobile terminal or the like, the comparison unit is currently discharging from the dryer. If the grain is different from the variety brand previously input to the input setting unit, for example, the number of grains measured by the automatic moisture meter is less than the specified number (for example, 5 grains or less in 4 minutes). ), It can be determined that the discharge of the dried grain has been completed, and the automatic cleaning operation by the automatic cleaning operation mode can be performed.

Further, when the grain type brand to be put in next time is input and set in the input setting unit at the timing during the drying operation of the grain dryer 1 by the mobile terminal or the like, the comparison unit is currently drying in the dryer. If the grain is compared with the variety brand that was previously input and set in the input setting unit, and if these two variety brands are different, for example, after the automatic moisture meter detects the dryness of the grain and shifts to the discharge operation. Similar to the above, for example, when the number of grains measured by the automatic moisture meter is less than a predetermined value (for example, 5 grains or less in 4 minutes), it is judged that the discharge of the dried grains is completed, and the automatic cleaning operation is performed. Can be done.

The discharge mechanism of the grain remaining on the lower screw of the grain dryer will be described with reference to FIGS. 5 to 8.
In the conveyor case 31 of the lower screw conveyor 13 (see FIG. 5), the bottom surface 32 of the conveyor case is formed on a porous wall surface, and a blower box 33 having the porous wall surface on the upper surface is provided below the conveyor case 31, and the blower box is provided. A blower (not shown) for blowing air is provided inside the 33. Here (see FIG. 5), an example of blowing air from the side to the blower box 33 is shown. The perforated wall surface forms an inclined slit 34a having directivity so that the air blown by the blower is blown in the transport direction of the lower screw conveyor 13 (see FIG. 7).

As shown in FIGS. 5, 8 and 9, the connecting gutter 10 is divided into upper and lower parts by a partition plate 39, and the upper portion thereof is formed in the grain transport chamber 40 and the lower portion thereof is formed in the blower chamber 41. The partition plate 39 is formed with an inclined slit 34b having a directivity to blow air toward the bucket elevator 9. The grain transport chamber 40 communicates with the bucket elevator 9 so as to transfer grains to the bucket elevator 9, while the blower chamber 41 communicates with the bucket elevator 9 so as to blow toward the bottom of the bucket elevator 9. Communicate. The connection portion 35 between the blower chamber 41 and the bucket elevator 9 is preferably formed in a horizontal slit. By the blow of the blower, the grains at the bottom of the bucket elevator 9 are blown up by the air. The blown-up grains can be collected in the bucket 9b of the bucket elevator 9 and discharged to the outside of the machine.

The amount of blown air can be determined for each of the inclined slits 34a and 34b by defining the area of the opening thereof. As an example, by making the area of the opening of the inclined slit 34b larger than the area of the opening of the inclined slit 34a, the amount of air blown from the inclined slit 34b increases. As a result, many grains can be transported into the bucket elevator 9.

FIG. 9 is a cross-sectional view of a grain dryer when the blower 36 and the blower box 33 are connected by a communication pipe 37. Further, FIG. 10 is a front sectional view of the blower 36. By communicating the blower 36 and the blower box 33 with a communication pipe 37 and providing a damper 38 at the connection portion between the blower 36 and the communication pipe 37, the blower of the blower 36 is blown by the lower screw conveyor. It can be used for cleaning 13. In this case, it is not necessary to prepare a blower separately, so that the cost can be reduced.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and the configuration thereof can be appropriately changed as long as it does not deviate from the scope of the invention. For example, the connection position of the blower is not limited to the blower box, and may be connected to the blower chamber so as to blow toward the bucket elevator side.

The present invention provides a grain dryer provided with a mechanism for discharging grains remaining on the lower screw inside the machine, which is extremely useful.

Code 1 Grain dryer 2 Grain storage 3 Grain drying section 4 Hot air chamber 5 Blowout chamber 6 Grain drying chamber 7 Operation unit 7a Touch panel 8 Burner box 8a Cover body 9 Bucket elevator 9a Motor 9b Bucket 10 Connection gutter 11 Rotary valve 12 collection Grain hopper 13 Lower screw conveyor 14 Blower port 15 Fan box 16 Rotating disperser 19 Upper screw conveyor 22 "Put in" button 31 Conveyor case 32 Conveyor case bottom 33 Blower box 34a Inclined slit 34b Inclined slit 35 Connection 36 Blower 37 Connection Pipe 38 Damper 39 Partition plate 40 Grain transport room 41 Blower room

Claims (4)

A grain storage section is provided on the grain drying section, and a bucket elevator is erected to connect the lower screw conveyor located horizontally at the bottom of the grain drying section and the upper screw conveyor located horizontally above the grain storage section. , Equipped with an elevator that exhausts the exhaust air that has passed through the grain drying section to the outside of the machine.
A connecting gutter for connecting the lower screw conveyor and the lower part of the bucket elevator is provided.
The bottom surface of the conveyor case of the lower screw conveyor is formed on a porous wall surface, and a blower box is provided below the conveyor case.
The blower box is provided with a blower that blows air inside the blower box.
An inclined slit having a directivity is formed on the perforated wall surface so that the air blown by the blower is blown in the transport direction of the lower screw conveyor.
A grain dryer provided with a control unit having an automatic cleaning operation mode for discharging grains remaining on the lower screw conveyor to the outside of the machine after the work of discharging the dried grains to the outside of the machine is completed . A grain storage section is provided on the grain drying section, and a bucket elevator is erected to connect the lower screw conveyor located horizontally at the bottom of the grain drying section and the upper screw conveyor located horizontally above the grain drying section. , Equipped with an elevator that exhausts the exhaust air that has passed through the grain drying section to the outside of the machine.
A connecting gutter for connecting the lower screw conveyor and the lower part of the bucket elevator is provided, the bottom surface of the conveyor case of the lower screw conveyor is formed on a porous wall surface, and a blower box is provided below the conveyor case.
The blower and the blower box are communicated with each other by a communication pipe, a damper is provided at the connection portion between the blower and the communication pipe, and the blower of the blower is used for cleaning the lower screw conveyor by the damper. ,
An inclined slit having a directivity is formed on the perforated wall surface so that the air blown by the blower is blown in the transport direction of the lower screw conveyor.
After the work of discharging the dried grains to the outside of the machine is completed, the damper uses the blower of the blower to clean the lower screw conveyor, and has an automatic cleaning operation mode in which the grains remaining in the machine are discharged to the outside of the machine. A grain dryer characterized by having a control unit . When the control unit is different from the grain type brand of the grain to be loaded this time and the grain type brand of the grain to be loaded last time, the control unit may use the control unit.
The grain dryer according to claim 1 or 2, wherein the automatic cleaning is performed by the automatic cleaning operation mode before the grain filling operation. The connecting gutter is divided into upper and lower parts by a partition plate, the upper portion thereof is formed in a grain transport chamber, and the lower portion thereof is formed in a blower chamber. The grain transport chamber is formed in the inclined slit having the bucket elevator, and the grain transport chamber communicates with the bucket elevator so as to transfer the grain to the bucket elevator side, while the air blow chamber blows toward the bottom of the bucket elevator. The grain dryer according to any one of claims 1 to 3, wherein the blower box and the blower chamber are communicated with each other so that the air from the blower is blown.

Images