JP2011120972A - Grain suction and conveyance device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grain suction and conveyance device that conveys grain while cleanly washing it and that can prevent chipping of the grain during the conveyance. <P>SOLUTION: The grain suction and conveyance device includes: a grain-feeding part 1 which stores the grain (a) to be conveyed; an air conveyance duct 2 through which the grain (a) fed from the grain-feeding part 1 is conveyed by air; a grain-recovering part 4 which receives and recovers the grain (a) conveyed by air through the air conveyance duct 2; a suction mechanism 5 which is communicatively connected to the grain-recovering part 4 communicating with the terminal part 2b of the air conveyance duct 2 and which generates an air flow in the air conveyance duct 2 by suction; and in addition, a humidifying means for adding moisture is provided in the air conveyance duct 2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a grain suction conveyance device.

  Conventionally, a conveyed product supply unit that supplies stored grains such as rice as a conveyed product, an air conveyance path that conveys the supplied grain together with an air current and conveys the air, and the air current is sucked into the air conveyance path by intake air. There has been a grain sucking and conveying apparatus that includes a suction mechanism to be generated and a conveyed product receiving unit that receives a conveyed product that has been conveyed by air through the air conveying path (see, for example, Patent Document 1).

JP 2007-160228 A

  However, the conventional grain sucking and conveying apparatus is merely an apparatus that removes dust and the like adhering to the grain by conveying the grain stored in the conveyed product supply unit to the conveyed product receiving unit through the air conveyance path. . In addition, since the grains stored for a long period of time lose moisture and dry, the water retention amount is not sufficient, and there is a possibility that the grains may be lost when air transported by the grain suction transport device.

  Furthermore, the conveyed grain needs to be adjusted to an appropriate water content by using a humidity control device or the like, but such a humidity control device is quite expensive. In addition, when dirty grains are mixed, it is necessary to separately prepare a cleaning device for cleaning the grains.

  The present invention has been made in view of such circumstances, and can transport grain while cleanly washing it, enabling humidification, preventing chipping of grains during transportation, and controlling the humidity of grains. An object of the present invention is to provide a grain sucking and conveying apparatus that can be expected to be effective.

  In order to solve the above-described conventional problems, the present invention according to claim 1 includes a grain supply unit that stores grains to be conveyed, and an air conveyance conduit that air-transports the grains supplied from the grain supply unit. A cereal collection unit that receives and collects the cereal conveyed by air from the air conveyance conduit, and a cereal collection unit that communicates a terminal portion of the air conveyance conduit, and the air conveyance conduit is connected by intake air In a grain suction conveyance device equipped with a suction mechanism for generating a suction airflow in the interior, moisture can be humidified while supplying moisture into the air conveyance path and sucking the supplied moisture together with the grain by the suction airflow It was decided to provide the humidifying means.

  Moreover, the present invention according to claim 2 is the grain suction conveyance device according to claim 1, wherein the humidifying means has moisture in the air conveyance path via a water supply section formed on the upper side of the air conveyance path. It is characterized by supplying.

  Further, according to a third aspect of the present invention, in the grain suction conveyance device according to the first or second aspect, the water supplied from the humidifying means into the air conveyance path is in the form of water droplets or mist. It is characterized by.

  Moreover, the present invention described in claim 4 is the grain suction conveyance device according to any one of claims 1 to 3, wherein the grain supply unit has moisture for measuring the moisture content of the stored grain. A meter is provided, and the grain recovery unit is provided with a moisture meter for measuring the moisture content of the recovered grain.

  According to the grain sucking and conveying apparatus of the present invention, moisture is supplied into the air conveying path, and the grain can be humidified while sucking the supplied moisture together with the grain by the suction airflow. The grain can be humidified. Therefore, even if the grain is excessively dried before conveyance, an effect of preventing chipping during the conveyance and an effect of beautifying the surface of the grain after conveyance are caused at the same time.

It is a typical whole explanatory view showing the grain suction conveyance device concerning this embodiment. It is typical typical explanatory drawing which shows the modification 1 of a grain suction conveyance apparatus. It is a principal part enlarged view of the grain suction conveyance apparatus shown in FIG. It is typical whole explanatory drawing which shows the modification 2 of a grain suction conveyance apparatus. It is a typical whole explanatory drawing which shows the modification 3 of a grain suction conveyance apparatus.

  Hereinafter, specific embodiments of the grain suction and conveyance device according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic overall explanatory view showing a grain suction conveyance device A according to the present embodiment.

  The grain suction conveyance device A includes a grain supply unit 1 that stores grains to be conveyed, an air conveyance line 2 that conveys grains a such as rice supplied from the grain supply unit 1, and an air conveyance line. 2. Humidifier 3 as a humidifying means for supplying moisture to the inside 2 and sucking the supplied moisture together with the grain a by a suction airflow, so that the grain a can be humidified, and the grain conveyed by air from the air conveying line 2 a suction mechanism 5 that communicates and connects the grain recovery part 4 that receives and collects a and the grain recovery part 4 that communicates the terminal part of the air conveyance pipe line 2, and generates the suction airflow in the air conveyance pipe line 2. ing.

  The grain supply unit 1 includes a hopper unit 11 that supplies the stored grain a to the air conveying pipe 2, and the bottom of the hopper unit 11 is formed in a funnel shape. At the center of the funnel-shaped bottom, a short grain supply cylinder 13 having a grain supply port 12 is provided so as to protrude downward.

  A shutter 14 having a slidable flat plate as a shutter body is detachably attached to the grain supply tube 13, and the opening width of the grain supply port 12 is adjusted according to the sliding amount of the shutter 14, and the grain a air transport pipe The supply amount per hour to the road 2 can be adjusted. In the present embodiment, the structure of the shutter 14 is a manual type. However, for example, a structure that includes a driving unit such as a motor and automatically adjusts the opening amount of the valve may be used. Further, it is not always necessary to use a flat plate for the shutter body, and the structure of the shutter 14 is not limited at all.

  The air conveyance pipe line 2 is formed in a substantially L shape from the start end part 2a connected to the grain supply cylinder 13 toward the end part 2b. Specifically, the air conveyance pipe line 2 extends in the horizontal direction from the start portion 2a to the vertical portion 2d extending in the vertical direction, the curved portion 2c curved substantially at right angles, and the curved portion 2c to the end portion 2b. And a horizontal portion 2e. The end portion 2 b of the air conveyance pipe line 2 is connected to the upper portion of the side wall 40 of the receiving hopper 41 of the grain collection unit 4.

  Incidentally, an introduction pipe 15 that serves both as an outside air communication port for supplying outside air and a moisture supply port for supplying moisture is connected to the vertical portion 2d of the air conveyance pipe line 2 in communication. Specifically, the introduction pipe 15 is connected to the vertical placement portion 2d of the air conveyance pipe line 2 so as to form an acute angle. In the present embodiment, the introduction pipe 15 is connected to the vertical placement portion 2d of the air conveyance pipe line 2 at an angle of about 45 degrees.

  The humidifier 3 includes a water supply unit 7 that stores water to be supplied into the air conveyance pipe line 2, a nozzle 8 that is provided on the introduction pipe 15, and a water supply unit 7 that supplies water. And the water | moisture content supplied via the water supply pipe | tube 6 from the water supply part 7 is made to spray with the nozzle 8 in a mist form. The moisture for humidifying the grain a does not necessarily have to be sprayed from the nozzle 8 in the form of a mist. A configuration in which the water is simply dropped onto the introduction tube 15 in the form of water drops may be employed. The water supply unit 7 is provided with an electromagnetic valve for adjusting the amount of water to be sprayed. The opening / closing amount of the electromagnetic valve is controlled based on an electric signal from the control unit 18 described later.

  As described above, in the present embodiment, the introduction pipe 15 is provided so as to project at an acute angle at a position immediately upstream of the curved portion 2c, which is the vertical placement portion 2d on the start end portion 2a side of the air conveyance pipe line 2. A nozzle 8 constituting a part of the humidifying device 3 faces the opening 15a of the introduction pipe 15. Then, the water supplied from the water supply unit 7 through the water supply pipe 6 is atomized by the nozzle 8 and sprayed into the introduction pipe 15. Therefore, the water sprayed in the introduction pipe 15 joins the grain a passing through the vertical portion 2d in the vertical direction at an angle of about 45 degrees, and is smoothly mixed, and the air transport pipe It adheres to the grain a passing through the road 2. That is, the mist-like water sprayed from the direction at an angle of 45 degrees is diffused all at once into the vertical portion 2d of the air conveyance pipe line 2 by the suction airflow, and the suction airflow containing the diffused water wraps the grain a. The curved portion 2c travels in the direction of the curved portion 2c, and the curved portion 2c adheres to the curved portion 2c reliably by the grain a that slightly decelerates and changes the traveling direction.

  Thus, the cereal a to which moisture has adhered is conveyed from the curved portion 2c of the air conveyance conduit 2 to the cereal collection unit 4 through the horizontal portion 2e. At this time, the grains a having moisture adhering to the surface are conveyed while contacting each other. Therefore, in this embodiment, since water is sprayed from the nozzle 8 via the introduction pipe 15 that supplies outside air and moisture to the grain a being transported in the vertical portion 2d of the air transport pipe 2, the grain a is It is possible to humidify by supplying moisture evenly, increasing the water retention amount of the grain a itself and preventing the chipping of the grain a that occurs during transportation, and also the effect that the attached moisture cleans the grain a cleanly Arise. Furthermore, when the grain a to which moisture has adhered by the humidifier 3 is brown rice, for example, there is an effect of facilitating the milling operation. That is, in the case of overdried brown rice that has not been humidified (moisture content: 12%), the removal rate of koji in the rice milling process deteriorates, and the taste of cooked white rice deteriorates. By humidifying, it becomes easy to polish rice, and has an effect of improving the taste of cooked white rice. Furthermore, when the grain to be humidified by the humidifier is white rice, the free koji adhering to the surface of the white rice can be reduced to about 1/3 compared to the conventional method, and the post-washing rice processing It is possible to reduce the load necessary for removing soot and free soot in the process.

  In the above-described grain sucking and conveying apparatus A, moisture is humidified by using the humidifying device 3 on the grain a in the air conveying pipe 2. Further, the moisture amount is measured by measuring the moisture content of the humidified grain a. Feedback control to automatically adjust the amount of water sprayed from 3.

  First, the 1st moisture meter 16 is provided in the hopper part 11 in the grain suction conveyance apparatus A, and the 2nd moisture meter 17 is provided in the discharge part of the rotary valve 43 mentioned later. The first moisture meter 16 can measure the moisture content of the grain a in the hopper 11 to obtain the first value, and the other second moisture meter 17 is humidified by the humidifier 3. After that, the moisture content of the grain a is measured so that the second value can be obtained. These values are transmitted to the control unit 18. The control unit 18 performs a predetermined calculation, and controls the electromagnetic valve of the water supply unit 7 of the humidifying device 3 based on the calculation result. Feedback control is performed so as to optimize the amount of water. In the figure, 19a is a wiring that electrically connects the first moisture meter 16 and the control unit 18, 19b is a wiring that electrically connects the second moisture meter 17 and the control unit 18, and 19c Is a wiring for electrically connecting the control unit 18 and the humidifier 3.

  For example, when the moisture content of the grain a after being humidified by the humidifier 3 is insufficient, the humidifier 3 is based on the difference value obtained from the moisture values measured by the moisture meters 16 and 17. The control unit 18 calculates the amount of water to be sprayed. Based on the calculated value, feedback control is performed so as to spray a predetermined amount of water by adjusting the electromagnetic valve of the water supply unit 7 of the humidifier 3. In this way, by performing feedback control that always keeps the moisture content from the humidifying device 3 in an optimal state, the moisture content of the grain a depends on environmental changes such as season and room temperature, the type of the grain a, the management state of the grain a, and the like. Even when they are different, it becomes possible to maintain the moisture content of the grain a after being humidified by the humidifying device 3 in an optimum state.

  The grain recovery unit 4 includes a receiving hopper 41 communicating with the terminal end 2b of the air conveyance pipe line 2. In the receiving hopper 41, a recovery guide 9 is disposed and the base end side of the recovery guide 9 is disposed. The air conveyance pipe line 2 is connected in communication with the terminal end 2b.

  Further, a grain outlet 42 from the receiving hopper 41 to the outside is provided at the lower end portion of the receiving hopper 41, and a rotary valve 43 is disposed further below the grain outlet 42. An exhaust pipe 31 protrudes from the ceiling 44 that forms the upper end of the receiving hopper 41, and the suction mechanism 5 is connected to the exhaust pipe 31 through an intake duct 32.

  The suction mechanism 5 sucks air inside the air conveyance pipe line 2 and the receiving hopper 41. By this air suction force, the water sprayed from the nozzle 8 is sucked from the introduction pipe 15 that is connected to the air conveyance pipe 2 while the grain a is conveyed from the grain supply unit 1 through the air conveyance pipe 2, and is efficient. To the grain a. Grain a to which moisture has adhered is washed and transported to the receiving hopper 41 with a moisturizing amount increased. An exhaust port 33 communicates with the exhaust pipe 31.

  Note that a grain outflow prevention filter (not shown) may be provided above the communicating portion of the air conveyance pipe line 2 inside the receiving hopper 41 to prevent the conveyed product a from flowing out from the exhaust port 33.

  In addition, the receiving hopper 41 forms an inclined wall 45 by inclining a lower portion thereof toward the rotary valve 43 from a portion communicating with the air conveyance pipe line 2 on the side wall 40, while facing the inclined wall 45. The surface to be used is a vertical wall 46.

  By the way, the collection guide 9 has a substantially bay-shaped guide wall 90 that changes the conveying direction of the grain a from the horizontal direction to the vertical direction, and extends in an arc shape from both ends of the guide wall 90 along the conveying direction. A pair of side walls 91, 91 having a predetermined height to be extended is formed in a substantially bowl shape having an arc shape in cross section.

  In the collection guide 9, the conveyance speed is reduced while changing the conveyance direction of the grain a flowing in from the horizontal portion 2e of the air conveyance pipeline 2 to a substantially right angle, so that the grain a can be gently lowered and the grain a In addition, the grain a is not sucked into the exhaust port 33 above the receiving hopper 41, so that the mixing into the suction mechanism 5 can be prevented as much as possible.

  Since the base end portion of the collection guide 9 is formed by gradually increasing the cross-sectional area in the conveyance direction, the conveyance speed of the grain a can be once reduced by the enlarged portion 92, and after this deceleration, the collection guide 9 The grain a is further decelerated while being swung in the vertical direction. Therefore, even with such a configuration, it is possible to prevent the grain a discharged from the collection guide 9 from violently colliding with the inner wall surface of the receiving hopper 41 and being damaged.

  In the present embodiment, not only the base end portion of the recovery guide 9 but also the terminal end portion 2b of the air conveyance conduit 2 connecting the recovery guide 9 has a cross-sectional area so as to have the same diameter as the enlarged portion 92. It expands and the air conveyance pipe line 2 and the collection | recovery guide 9 are connected in the close state.

  In the collection guide 9, the width of the guide wall 90 is constant, and the side walls 91 and 91 connected to both ends of the guide wall 90 are also substantially parallel to each other. The side walls 91 and 91 are gradually widened in the transport direction and the side walls 91 and 91 are gradually separated in the transport direction. Conversely, the width of the guide wall 90 is narrowed in the transport direction and the side walls 91 and 91 are narrowed. It can also be set as the structure which approaches gradually toward a conveyance direction. For example, when the cross-sectional area of the base end portion of the guide wall 90 is enlarged in the conveyance direction, the conveyance speed of the grain a can be further reduced by the enlarged part and discharged from the collection guide 9, so that the damage of the grain a Can be more effectively prevented.

[Modification 1]
Next, a modified example of the structure for attaching the introduction pipe 15 for supplying outside air and moisture to the air conveyance pipe line 2 will be described with reference to FIGS. Note that, in the following modified examples, the same components in FIG. 1 described above are denoted by the same reference numerals, and redundant description is omitted, and effects are also omitted.

  In this example, the introduction pipe 25 is connected horizontally to the horizontal portion 2e of the air conveyance path 2c, bent from the grain supply cylinder 13 connected to the hopper part 11 of the grain supply part 1, and introduced to the tip part. The connecting cylinder 2f in which the portion 27 is formed is connected to the lateral portion 2e. That is, in other words, the connecting cylinder 2f that communicates with the hopper portion 11 at the boundary portion between the curved portion 2c and the laterally placed portion 2e of the air conveyance pipe line 2 and becomes the vertical portion 2d of the air conveyance pipe line 2, The introduction pipe 25 extended in the horizontal direction is connected in communication.

  Even in such a configuration, a necessary amount of outside air and moisture can be sufficiently supplied from the starting end opening 26 of the introduction pipe 25 as in the previous embodiment, and the grain a can be reduced by natural fall from the grain supply port 12. Can be easily and reliably supplied into the air conveyance pipe line 2 for smooth air conveyance.

  That is, the nozzle 8 that constitutes a part of the humidifying device 3 is provided adjacent to the start end opening 26 of the introduction pipe 25. The nozzle 8 sprays the water supplied from the water supply unit 7 through the water supply pipe 6 in the form of a mist into the introduction pipe 25. The water sprayed in the introduction pipe 25 adheres to the grain a which passes through the curved portion 2c of the air conveyance pipe line 2 and reaches the horizontal portion 2e. Compared to the opening diameter of the start end opening 26, the introduction pipe 25 has a terminal portion, that is, a passage 29 below the grain introduction portion 27 in the air conveying pipe 2, which is introduced from the start end opening 26. The outside air and moisture are accelerated by the narrowly formed passage 29 and diffused all at once from the end of the passage 29 into the horizontal portion 2e, and sprayed from the curved portion 2c to the ongoing grain a through the horizontal portion 2e. Accordingly, the grain a in progress passes through the horizontal portion 2e and is conveyed to the grain collection unit 4 through the horizontal portion 2e from the curved portion 2c of the air conveyance pipe 2 together with the suction air flow while being wrapped in the diffused moisture. .

  In this way, since the water is sprayed by the nozzle 8 through the introduction pipe 25 to the grain a being transported in the curved portion 2c of the air transport pipe 2, the attached water cleans the grain a and cleans the grain a. There is an effect of preventing the chipping of the grain a that occurs during the conveyance by increasing the water retention amount of itself.

  Further, as shown in FIG. 3, the grain introduction portion 27 in the air conveyance pipe line 2 is formed by extending a grain receiving plate 28 with an appropriate length in the conveyance direction inside the air conveyance pipe line 2. Yes.

  That is, the grain receiving plate 28 is extended from the grain introduction part end part 27a located substantially in the center part in the vertically placed part 2d of the air conveying pipe 2 so as to partition the air conveying pipe 2 vertically. With the grain receiving plate 28, the grain a falling from the grain supply unit 1 is once received and then sucked and conveyed by air. By adopting such a configuration, there is no possibility that a large amount of grain a falls at once and accumulates in the air conveyance pipe 2 and becomes clogged, and the suction and conveyance of the grain a by air can be performed smoothly.

[Modification 2]
Next, a modified example 2 of the introduction pipe 25 for supplying outside air and moisture in the air conveyance pipe line 2 will be described with reference to FIG.

  In this example, only the outside air is introduced into the introduction pipe 25 in FIGS. 2 and 3, and the moisture supply pipe 63 that constitutes a part of the humidifier 30 is connected to the horizontal portion of the air conveyance pipe line 2. It is set as the structure connected to the middle part of 2e. Specifically, the moisture supply pipe 63 is connected in communication with the horizontal portion 2e in the conveying direction of the grain a from the vertical direction. More preferably, it is preferable that the moisture supply pipe 63 is tilted backward with respect to the transport direction so that the moisture can be supplied to the moisture supply pipe 63 at an acute angle.

  The humidifier 30 includes a moisture supply pipe 63, a water supply unit 7, and a water supply tube 60, and the water droplet-like moisture supplied from the water supply unit 7 passes through the moisture supply pipe 63 and is installed in the horizontal portion of the air conveyance pipe line 2. 2e.

  When the suction mechanism 5 is actuated, the grain a is drawn from the grain supply unit 1 into the air conveyance pipe 2 and is conveyed along with the outside air supplied from the introduction pipe 25, and the grain a being conveyed is further conveyed to the air conveyance line 2. In this state, water droplets supplied from the moisture supply pipe 63 connected to the horizontal portion 2e are transported to the grain collection unit 4 in a state of adhering.

  As described above, in the present embodiment, since the water droplet-like moisture is supplied from the moisture supply pipe 63 to the grain a being transported in the horizontal portion 2e of the air conveyance pipeline 2, the grain a is washed cleanly and the grain The water retention amount of a itself increases, and it has the effect of preventing chipping of grain a.

[Modification 3]
Next, Modification 3 of the structure for supplying outside air and moisture to the air conveyance pipe line 2 will be described with reference to FIG.

  Moreover, as shown in FIG. 5, the grain introduction part 77 formed in the start end part 2a of the air conveyance pipeline 2 has a structure for conveying and supplying the grain a and the outside air supplied from the grain supply part 1. . The grain supply cylinder 13 of the grain supply unit 1 is erected in a state of being separated from the grain introduction part 77 (outside air communication port) of the air conveyance pipe line 2 by a predetermined distance.

  The grain introduction part 77 is formed in the enlarged diameter part 21 having a diameter larger than the diameter of the other part of the air conveying pipe 2 and is configured to have a larger diameter than the opening of the grain supply cylinder 13. Yes.

  A moisture supply pipe 83 that constitutes a part of the humidifying device 80 is connected in communication with the middle portion of the horizontal portion 2 e of the air conveyance pipe 2. Specifically, the moisture supply pipe 83 is connected in communication with the lateral placement portion 2e with the proximal end curved. In the present embodiment, the introduction plate 83a at the base end of the moisture supply pipe 83 is connected to the laterally placed portion 2e of the air conveyance pipe line 2 at an angle of about 30 degrees.

  The humidifier 80 includes a moisture supply pipe 83 and a humidifier 87. Connected to the moisture supply pipe 83 is an ultrasonic (nebulizer type) humidifying unit 87 that mists moisture supplied from a water supply unit (not shown).

  The start end portion 2 a of the air conveyance pipeline 2 takes in an outside air communication port that is an intake port for outside air drawn into the air conveyance pipeline 2, and a grain a such as rice that is an object of air conveyance into the air conveyance pipeline 2. A grain introduction part 77 that also serves as a grain introduction port is provided.

  In the grain introduction part 77, the grain a supplied from the hopper part 11 is easily supplied into the air conveying pipe 2 by natural fall, and is formed to have a larger diameter than the opening diameter of the grain supply cylinder 13. The outside air is sucked by functioning as an outside air communication port. Grain a is effectively supplied into the air conveyance pipe line 2 without being dissipated from the grain introduction part 77, and rides on the suction airflow to start the end part 2a in the air conveyance pipe line 2 → the vertically placed part 2d → curved part 2c. → The horizontal portion 2e → the end portion 2b smoothly flows and is conveyed. The mist-like moisture generated by the humidifying unit 87 is sprayed into the moisture supply pipe 83. The mist of water sprayed in the moisture supply pipe 83 will join the grain a passing through the horizontal portion 2e in the horizontal direction at an angle of about 30 degrees, and will be smoothly mixed. It adheres to a. Grain a to which moisture has adhered is conveyed while being washed in the horizontal portion 2e of the air conveyance pipe 2 and is effectively stored in the grain collection unit 4.

  The humidifier 80 is connected to a control unit 18 for adjusting the amount of moisture to the grain a, and the first moisture meter 16 and the second moisture meter 17 are Based on the value measured in step 1, the water amount feedback control is performed.

  In the modified example 3, the moisture supply pipe 83 is connected to the horizontal portion 2e of the air conveyance pipe line 2 so as to be humidified. However, the moisture supply pipe 83 is generated by the humidifier from the grain introduction part 77 serving as the outside air communication port. You may make it supply a mist-like water | moisture content.

  Although the present invention has been described through each embodiment, the present invention is not limited to each embodiment, and the shape of each component and the layout of the apparatus are within the scope of the claims. Etc. can be appropriately changed.

A Grain suction conveyance device 1 Grain supply unit 2 Air conveyance line 3 Humidification device 4 Grain collection unit 5 Suction mechanism 6 Water supply tube 7 Water supply unit 9 Collection guide 11 Hopper unit 12 Grain supply port 13 Grain supply tube 14 Shutter 15 Introducing tube

Claims (4)

A grain supply unit for storing grains to be conveyed;
An air conveyance pipe for conveying the grains supplied from the grain supply unit by air;
A grain collection unit that receives and collects the grains conveyed by air from the air conveyance pipeline;
A suction mechanism that is connected in communication with the grain recovery unit that communicates the terminal portion of the air conveyance pipe line, and generates a suction airflow in the air conveyance pipe line by intake air;
In the grain suction conveyance device provided with
A grain suction / conveying apparatus, comprising a humidifying means for supplying moisture into the air conveying path, and capable of humidifying the grain while sucking the supplied moisture together with the grain by the suction airflow. The humidifying means is
The grain suction conveyance device according to claim 1, wherein moisture is supplied into the air conveyance path through a water supply unit formed on the upper side of the air conveyance path.   The grain suction conveyance device according to claim 1 or 2, wherein the moisture supplied from the humidifying means into the air conveyance path is in the form of water droplets or mist.   The grain supply unit is provided with a moisture meter for measuring the moisture content of the stored grain, and the grain collection unit is provided with a moisture meter for measuring the moisture content of the collected grain. The grain suction conveyance device according to any one of claims 1 to 3.

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