JPH05231772A - Device for preventing straw dust accumulation in grain drying machine - Google Patents

Abstract

PURPOSE:To provide a superior flow of grain flowing down from a grain storing chamber into a flowing-down chamber formed between flowing-down shelves. CONSTITUTION:In order to prevent straw dust from accumulating at top portions of flowing-down shelves 3, 3 forming a flowing-down chamber 4 communicated with a grain storing chamber 2, a partition plate 5 is arranged to be directed upwardly from the top portions of the flowing-down shelves 3, 3 and the flowing- down straw dust and the like are applied to the upper end of the partition plate 5, thereby the straw dusts are not accumulated at the top portions of the flowing-down shelves 3, 3. As a result, the flow of grain flowing down the flowing-down chamber 4 is improved and a drying efficiency of the grain is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing straw accumulation in a grain dryer.

[0002]

2. Description of the Related Art Conventionally, a rotating diffusion diffusing plate is used to
The grains are diffused and reduced to the upper grain storage chamber, and the grains are provided from the storage chamber to the delivery chamber formed between the lower inclined shelves, and are provided at the apex of the central shed shelves. ,
It was a grain dryer that does not have a device for preventing the accumulation of straw that prevents the accumulation of straw in the grain at the apex.

[0003]

The grains supplied onto the diffusion plate of the grain dryer are diffused and supplied into the grain storage chamber by the rotation drive of the diffusion plate, and from this storage chamber to the downflow chamber. When the grain water is fed out and exposed to hot air while being circulated to be further circulated to the drying chamber and dried, and the grain moisture is the same as the finishing target moisture, the dryer is stopped and the grain drying is stopped.

During this drying operation, since the grain is heavier than straw dust and the like, it is diffused and supplied to the distant position in the storage chamber, and the straw dust is light and is fed in the short distance position in the storage chamber. In the case of a grain that is highly contaminated with straw debris, this straw debris may be deposited on the apex of the central shelves that form the downflow chamber. It is generated, and the accumulation of straw waste deteriorates the grain flow especially in the vicinity of the central part, which may cause spot dryness in the grain, which is intended to be prevented.

[0005]

According to the present invention, grains are diffused and reduced to an upper grain storage chamber 2 by a diffusion board 1 which is rotationally driven, and the grains are formed between the storage chamber 2 and a lower sloping falling shelf 3. A partition plate 5 is provided for feeding and flowing down the grains into the flow-down chamber 4, and a partition plate 5 for preventing straw and the like accumulated on the apex of the flow-down shelf 3 in the central part is directed upward from the apex of the flow-down shelf 3 in the central part. The apparatus for preventing the accumulation of straw in a grain dryer is characterized in that

[0006]

The grains supplied to the diffusion plate 1 of the grain dryer are diffused and supplied into the grain storage chamber 2 by the rotation drive of the diffusion plate 1, and the flow chamber 4 flows from the storage chamber 2 to the grain storage chamber 2. While being circulated, it is exposed to hot air and dried, and when the grain moisture is the same as the finishing target moisture, the dryer is stopped and the grain is dried. Be stopped.

During this drying operation, inside the grain diffused and supplied from the diffuser 1 to the partition plate 5 provided upward at the top of the flow-down shelf 3 in the central part forming the flow-down chamber 4. Straws mixed in with are caught on the upper end of the partition plate 5, but the position of the caught straws is considerably above the downflow chamber 4, so that the flow of the downflowing grains is prevented. Is smoothly drained and dried.

[0008]

According to the present invention, the partition plate 5 is provided upward from the apex of the flow-down shelf 3 in the central part forming the flow-down chamber 4, and straw is caught on the upper end of the partition plate 5, so that the straw is removed. Since the place where the dust is caught is considerably above the flow-down chamber 4, the flow of the grain that flows down is not obstructed, and the grain always flows smoothly, so that the grain has a dry spot. It is possible to obtain good dried grains without causing

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated example shows a grain dryer 8 in which a cooling device 6 for cooling the grain at the upper part and a hot air drying device 7 for drying the grain at the lower part are mounted in a stacked state. The cooling device 6 and the hot air drying device 7 of the dryer 8 have a rectangular shape that is long in the front-rear direction, and the cooling device 6 above the machine wall 9 has a cooling transfer spiral rotatably installed in the upper part thereof. A cold transfer gutter 10 and a cooling ceiling plate 11 are provided, and a grain cooling storage chamber 2 for storing grains is formed below the cooling ceiling plate 11.

Below the cold storage chamber 2, there are provided downflow chambers 4 and 4 which are formed between slanted downflow shelves 3 and 3 which communicate with the cold storage chamber 2. 4, a cooling free-flowing spiral 13 is rotatably installed inside, and a diamond-shaped guide plate 14, 14 is provided on the upper side of the downflow chambers 4, 4, and the downflow shelf 3 at the central portion. , 3 apex portions are provided with a partition plate 5 of a predetermined length upward, and in order to prevent straw from accumulating on the flow down shelves 3, 3 apex portions of the central portion,
Straws are applied to the upper end of the partition plate 5 so that the flow of grains flowing down the flow-down chamber 4 on the central side is good.

On the lower side of the flow chambers 4 and 4, the on-off valve 15,
The open / close valves 15 and 15 are configured to be opened / closed by the forward / reverse rotations of the open / close valve motors 16 and 16. The open / close valves 15 and 15 open the inside of the flow chambers 4 and 4, respectively. The grains are configured to be dropped and supplied into the hot air drying device 7 on the lower side, and the grains in the cooling chambers 4 and 4 are laterally transferred by the cooling downflow spiral 13 in a closed state. ..

At the center between the flow-down chambers 4 and 4, there is provided a drying transfer gutter 17 in which a drying transfer spiral is rotatably mounted. A drying storage chamber 18 of the hot-air drying device 7 is formed below the drying transfer gutter 17, and on the lower side of the drying storage chamber 18, left and right sides and three central exhaust air blow chambers 19 and left and right sides. 4 of the grain drying chambers 21 are provided between the air blowing chambers 20 and 20.
At the lower part, each feeding valve 22 for feeding and flowing down the grains is rotatably supported, and each feeding valve 22 is rotationally driven by a feeding valve motor 23.

A dry grain collecting trough 25 having a dry grain collecting transfer spiral 24 rotatably mounted therein is connected to the lower side of each of the drying chambers 21. On the front side of the machine wall 9, a blower passage chamber 26 that can communicate with the blower chambers 20, 20 is formed, and a burner case 28 containing a burner 27 is detachably attached to the blower passage chamber 26. An operating device 29 for starting and stopping the dryer 8 is detachably provided on the outer surface of the machine wall 9. This operating device 2
Various start switches 34 and stop switches 3 are provided on the surface plate of 9.
5 and the like, and the outside air humidity sensor 37 is provided outside the lower plate.

On the rear side of the machine wall 9, each of the exhaust chambers 19 is provided.
An exhaust passage chamber 30 that can communicate with the exhaust passage chamber 30 is formed.
An exhaust fan 32 is provided on the central rear side exhaust fan 31, and an exhaust fan motor 33 that rotationally drives the exhaust fan 32 is provided. At the central portion of the bottom plates of the cooling / drying transfer gutters 10 and 17 in the front-rear direction, supply ports for supplying the transfer grains to the cooling storage chamber 2 and the drying storage chamber 18 are provided. On the side, cooling / drying diffusers 1 and 1 are rotatably provided.

The grain raising machine 38 is provided outside the rear side of the machine wall 9, a belt with a bucket conveyor 39 is stretched inside, and an upper end portion is provided with an ejecting cylinder 40. One side of the cylinder 40 and the start end of the cooling transfer gutter 10 are communicated with each other, and the other side is connected with the start end of the dry transfer gutter 17 via a flow-down cylinder 41. Is provided with an opening / closing valve 42 that can be opened and closed.
Is configured to open and close by the forward / reverse rotation of the throwing motor 43, and the grain from the grain raising machine 38 is supplied to the cold transfer trough 10 while the throwing switching valve 42 is open, and the closed state. Is supplied to the dry transfer gutter 17 with a lower end part provided with a supply gutter 44 to communicate with the end part of the dry grain collecting gutter 25, and 45 is a grain elevator motor. The sublimation machine motor 45 is configured to rotate and drive each part of the sublimation machine 38.

The sublimation machine 38 receives the grains falling while being conveyed to the upper part by the bucket conveyor 39, and crushes the grains at the same time, and at the same time, the moisture sensor 46 for detecting the water content of the crushed grains. Is provided, and each unit of the moisture sensor 46 is configured to be rotationally driven by a moisture motor 47. Grain drying in the dryer 8 is configured to perform either single drying or double drying. Single drying is performed while the grains circulate in the hot air drying device 7,
The drying is performed by being exposed to hot air, and the double drying is performed by being exposed to hot air and dried while the grains circulate from both inside the cooling device 6 and inside the hot air drying device 7. There is.

When both the drying of the grains in the dryer 8 and the cooling of the grains are performed at the same time, the grains are allowed to cool in the cooling device 6 in a stationary state, and in the hot air drying device 7. While the grains are circulating, the grains are exposed to hot air and dried. Grain cooling in the dryer 8 is performed by cooling the grain in the cooling device 6 in a stationary state, or by cooling both grains in the hot air drying device 7 from inside the cooling device 6. While circulating, one of the two is allowed to cool.

When double cooling is set by circulating both the cooling device 6 and the hot air drying device 7, the drying control device in the operating device 29 controls as follows. It is configured. Double drying is started (step 101), each part of the dryer 8 is operated (step 102), and the burner 27 is started (step 1).
03), ventilation is started to the cooling device 2 (step 1
04), during double drying (step 105), if the grain moisture detected by the moisture sensor 46 detects, for example, + 2% or less of the finish target moisture set and stored, the finish target moisture becomes 15%. When 17% or less is detected (step 106), or when the outside air temperature detected by the outside air humidity sensor 37 detects 85% or more of the set and stored humidity (step 107), ventilation to the cooling device 2 is performed. Is stopped (step 108), the target finishing moisture or less is detected (step 109), and the dryer 8 is stopped to stop grain drying (step 110).

FIGS. 5 and 6 show a grain dryer 48 according to another embodiment, which is constructed as follows.
The dryer 48 has a rectangular machine wall 49 that is long in the front-rear direction.
A transfer gutter 50 and a ceiling plate 51 in which a transfer spiral is rotatably installed are provided on the upper portion, and a grain storage chamber 52 for storing grains is provided below the ceiling plate 51.

Below the storage chamber 52, the grain drying chambers 55 are provided in an inclined state between the air-blowing chambers 13 on the left and right sides and in the center and the rhombus-shaped exhaust chambers 54, 54. At the confluence of the drying chamber 55 of the outer portion and the drying chamber 55 of the outer portion, feeding valves 56, 56 for feeding and lowering the grains are rotatably supported, and the apex portion of the blower chamber 53 at the central portion. Is provided with a partition plate 5 of a predetermined length upward, and in order to prevent straw debris from accumulating at the apex of the ventilation net forming the blower chamber 53 in the central portion, the upper end of the partition plate 5 is As a structure in which straw dust is applied to the part, the flow of the grains flowing down the flow-down chamber 4 in the central part is made good.

Below each of the drying chambers 55, there is provided a grain collecting gutter 57 in which a transfer spiral through which the grains flow is rotatably installed, and is connected to each other. A burner 58 is detachably installed in the lower side of the right side shelf plate on the front side of the machine wall 49, and the dryer 48, the burner 58 and the moisture sensor are provided on the outer side surface of the front side of the machine wall 49. An operation device 60 for starting and stopping operations such as 59 for loading, drying, and discharging is detachably provided, and hot air generated from the burner 58 is blown through the openings of the front wall 49 to the respective blowers. The air passage chamber 61 is formed so as to communicate with the chamber 53, and the air passage chamber 61 is formed by the air passage chamber cover 62.

On the rear side of the machine wall 49, an exhaust passage chamber 63 which can communicate with the left and right exhaust chambers 54 is formed, and the exhaust passage chamber 63 has a central rear side exhaust duct 64 for exhausting air. An air blower 65 and an air blower motor 66 that rotationally drives the air blower 65 are provided. A supply port for supplying the transfer grains into the storage chamber 52 is provided in the central portion of the bottom plate of the transfer gutter 50 in the front-rear direction, and the grains are evenly diffused into the storage chamber 52 below the supply port. A diffusion board 67 for reduction is provided.

The grain raising machine 68 is provided outside the front of the machine wall 49, and has a belt with a bucket conveyor 69 stretched inside, and its upper end is thrown out between the transfer gutter 50 and the starting end. A cylinder 70 is provided for communication, and a lower end portion is provided with a supply gutter 71 for communication with the terminal end portion of the grain collecting gutter 57. Each part of the grain raising machine 68 has a grain raising motor 7
It is configured to be rotationally driven by 2.

The moisture sensor 59 for detecting the moisture content of the grain is provided substantially in the vertical center of the grain raising machine 68. The moisture sensor 59 transmits the electrical measurement signal from the operating device 60 to cause the moisture content to increase. The motor 73 rotates and each part of the moisture sensor 59 is rotationally driven, and the grain which falls while being conveyed to the upper portion is received by the bucket conveyor 69, and at the same time the grain is crushed by pressure, the moisture of the crushed grain is Is configured to be detected.

FIG. 7 is a diagram showing another embodiment, in which a tension rod 74 for reinforcing the machine wall 49 is provided between the front and rear machine walls 49 in the storage chamber 52 and above the blower chamber 53 in the central portion. In addition, a plurality of ventilated nets forming the blower chamber 53 in the central portion are provided by providing a plurality of them on the upper side of the apex portion of the rhombus forming the exhaust chambers 54, 54 and mounting the both sides with nuts 75 or the like. In order to prevent straw debris from accumulating in the portion, straw is applied to the tension rod 74, and the flow of the grains flowing down the central downflow chamber 4 is improved to improve the drying efficiency. There is.

FIG. 8 is a view showing another embodiment, in which an oscillating sorter 76 is provided in the upper part of the storage chamber 52, and the straw waste mixed with the grains thrown out from the grain raiser 68 is mixed. Is supplied to the sorting device 76, and the sorted grains fall from the holes of the sorting shelf plate 77 of the sorting device 76 and fall into the storage chamber 5.
The straw waste supplied to No. 2 and sorted is transferred on the sorting shelf plate 77 of the sorting device 76, discharged through the straw passage 78 to the outside of the machine, and the straw waste is removed during grain drying. As a configuration, the drying efficiency is improved.

The operation of the above embodiment will be described below. When performing double-drying of the grains stored in the grain cooling storage chamber 2 of the cooling device 6 of the grain dryer 8, by operating the start switch 34 for starting the drying operation of the operating device 29. The respective parts of the dryer 8, the burner 27, the moisture sensor 46, etc. are started, and the hot air generated from the burner 27 passes from the air passage chamber 26 to the air blowing chambers 20, 20, and the grain drying chambers 21. The cooling air storage chamber 2 is sucked and exhausted by the exhaust fan 32 through the exhaust chambers 19 and the exhaust passage chambers 30.
The grains stored in 1 are exposed to the hot air while they are flowing from the cold storage chamber 2 into the flow-down chambers 4 and 4, the drying storage chamber 18 of the hot-air drying device 7 and the grain drying chamber 21 to be dried. Then, each of the feeding valves 22 feeds it to the lower portion to flow it down, and the dried grain collecting gutter 2
5 through the supply gutter 44 into the grain elevator 38.
5 is transported and supplied by the dry grain collecting and transporting spiral 24, is transported to the upper part by the bucket conveyor 39, is supplied from the throwing-out cylinder 40 into the cold-cooling transfer trough 10, and is allowed to cool and spread by the cold-cooling transfer trough 10. 1 is fed and supplied by the cold-cooling transfer spiral in the cold-cooling transfer gutter 10 to be uniformly diffused and reduced in the cold-cooling storage chamber 2 by the diffusion plate 1, and the grain moisture detected by the moisture sensor 46 is When the same grain moisture as the finishing target moisture is detected, it is detected that the drying has been completed, and the dryer 8 is automatically controlled by the drying controller.
Is automatically stopped to stop the drying of the grain.

At the time of this drying operation, the straw waste mixed in the grain is applied to the upper end of the partition plate 5 provided in the cold storage chamber 2, and the straw waste forms the flow-down chamber 4. Falling shelves 3,3
There is no accumulation at the apex, and therefore the flow of the grains flowing down the flow-down chamber 4 is improved and the grains flow smoothly.

[Brief description of drawings]

 The figure shows an embodiment of the invention.

FIG. 1 is an enlarged sectional view taken along line AA of FIG.

FIG. 2 is an overall side view of a grain dryer.

FIG. 3 is an enlarged front view in which a part of the grain dryer is partially broken.

FIG. 4 is a flowchart.

5 is an enlarged sectional view taken along line BB of FIG. 6 showing another embodiment.

FIG. 6 is an overall side view of a grain dryer showing another embodiment.

FIG. 7 is an overall front sectional view of a grain dryer showing another embodiment.

FIG. 8 is an overall side view of a grain dryer according to another embodiment, which is partially broken.

[Explanation of symbols]

 1 Diffuser 2 Grain storage chamber 3 Downflow shelf 4 Downflow chamber 5 Partition plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Eiji Mori 1st Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A rotary diffusing plate 1 diffuses and reduces grains into an upper grain storage chamber 2 and transfers the grains from the storage chamber 2 to a downflow chamber 4 formed between inclined lower flow shelves 3. The partition plate 5 is provided for feeding and flowing down, and is provided with a partition plate 5 for preventing straw and the like accumulated on the apex portion of the flow-down shelf 3 in the central portion, which is provided upward from the apex portion of the flow-down shelf 3 in the central portion. Straw accumulation prevention device for grain dryer.