JP6016501B2 - Grain drying equipment - Google Patents

Description

  The present invention relates to a grain drying apparatus in which grains are dried by a radiator emitting far-infrared rays.

  In the grain dryer described in Patent Literature 1 below, a heat radiating pipe is provided in the main body cereal collection room or hot air chamber, and heat is radiated to the front side of the main body during maintenance of the cereal collection room, hot air room or radiant pipe. The tube is pulled out.

  However, in this grain dryer, when the side wall of the installation chamber of the main body is arranged in the vicinity of the front side of the main body or when the weight of the heat dissipation pipe is large, the heat dissipation pipe cannot be pulled out to the front side of the main body. Or maintenance of the hot air chamber and the heat radiating pipe may be difficult.

Japanese Patent Laid-Open No. 10-288462

  An object of the present invention is to obtain a grain drying apparatus that can remove foreign substances adhering to at least one of a radiator and a surrounding body even when the radiator cannot be pulled out of the apparatus body in consideration of the above facts.

The grain drying apparatus according to claim 1 is provided in the apparatus main body in which the grain is accommodated, and is rotatable in the vertical direction around a rotation axis on one side in the longitudinal direction. A radiator in which grains are dried by radiating infrared rays, and a surrounding area provided around the radiator, and the distance between the radiator and the radiator is changed by rotating about the rotation axis. And a body.

  A grain drying apparatus according to a second aspect of the present invention is the grain drying apparatus according to the first aspect, further comprising maintaining means for maintaining the state in which the radiator is rotated.

  In the grain drying apparatus according to the first aspect, the grain is accommodated in the apparatus main body, and the radiant in the apparatus main body emits far infrared rays, whereby the grain is dried. In addition, a surrounding body is provided around the radiator.

  Here, the radiator is rotatable about the rotation axis. For this reason, the space between a radiator and a surrounding body can be enlarged, and the foreign material adhering to at least one of a radiator and a surrounding body can be removed through the said space. For this reason, even when a radiator cannot be pulled out of the apparatus main body, the foreign material adhering to at least one of a radiator and a surrounding body can be removed.

  In the grain drying apparatus according to claim 2, the maintaining means maintains the state where the radiator is rotated. For this reason, the operation | work which removes the foreign material adhering to at least one of a radiator and a surrounding body can be made easy.

It is sectional drawing seen from the left which shows the grain drying apparatus which concerns on embodiment of this invention. It is sectional drawing (2-2 sectional view taken on the line of FIG. 1) seen from the front which shows the grain drying apparatus which concerns on embodiment of this invention. It is sectional drawing (3-3 line sectional drawing of FIG. 1) seen from the top which shows the grain drying apparatus which concerns on embodiment of this invention. It is the perspective view seen from the front diagonal right which shows the grain drying apparatus which concerns on embodiment of this invention. It is the disassembled perspective view seen from the front diagonal left which shows the lower part of the grain drying apparatus which concerns on embodiment of this invention. It is the disassembled perspective view seen from the front diagonal left which shows the principal part of the grain drying apparatus which concerns on embodiment of this invention. It is the front view seen from the front which shows the far-infrared radiator in the grain drying apparatus which concerns on embodiment of this invention. It is the front view seen from the front which shows the rotation state of the far-infrared radiator in the grain drying apparatus which concerns on embodiment of this invention. It is the perspective view seen from the front diagonal right which shows the principal part of the rotation state of the far-infrared radiator in the grain drying apparatus which concerns on embodiment of this invention. It is the perspective view seen from the front diagonal right which shows the rotation state of the far-infrared radiator in the grain drying apparatus which concerns on embodiment of this invention. It is the front view seen from the front which shows the left upper rail and lower rail in the grain drying device concerning an embodiment of the invention.

  FIG. 1 is a cross-sectional view of a grain drying apparatus 10 (grain far infrared drying apparatus) according to an embodiment of the present invention as viewed from the left, and FIG. Is shown in a cross-sectional view (a cross-sectional view taken along line 2-2 in FIG. 1). Further, FIG. 3 shows a cross-sectional view (cross-sectional view taken along line 3-3 in FIG. 1) of the grain drying apparatus 10 as viewed from above. In FIG. It is shown in the perspective view seen from. In the drawing, the front of the grain drying apparatus 10 is indicated by an arrow FR, the right side of the grain drying apparatus 10 is indicated by an arrow RH, and the upper part of the grain drying apparatus 10 is indicated by an arrow UP.

  As shown in FIGS. 1-4, the grain drying apparatus 10 which concerns on this Embodiment is provided with the body 12 as an apparatus main body, and the body 12 is made into the rectangular parallelepiped box shape which is high up and down and long back and forth. The airframe 12 has, for example, a vertical dimension of about 7 m, a horizontal dimension of about 1.6 m, and a longitudinal dimension of about 3.5 m.

  The upper part in the machine body 12 is a grain tank 14 that constitutes a storage chamber, and grain K (for example, straw) is stored (accommodated) in the grain tank 14.

  In the lower part of the airframe 12, a pair of exhaust passage bulkheads 16 are provided on the right side and the left side. The exhaust passage bulkhead 16 has air permeability and includes a front plate and a rear plate of the airframe 12. It is bridged between. The exhaust passage partition 16 has a vertical middle portion disposed in the vertical direction, and an upper portion and a lower portion inclined downward from the side plate of the fuselage 12 toward the center in the left-right direction. Is funnel-shaped.

  A wind tunnel plate 18 constituting a surrounding body is provided between the pair of exhaust path partition walls 16. The wind tunnel plate 18 has air permeability and a substantially hexagonal cylindrical shape. The wind tunnel plate 18 is bridged between the front plate and the rear plate of the fuselage 12, and the middle portion and the lower portion in the vertical direction of the wind tunnel plate 18 are parallel to the opposing exhaust passage partition wall 16; The interior of the wind tunnel plate 18 is a blower path 20. A substantially rectangular outside air inlet 22 is formed on the front plate of the body 12 corresponding to the air passage 20, and the outside air inlet 22 communicates with the air passage 20.

  As shown in FIGS. 5 and 10, the portion of the wind tunnel plate 18 excluding the lower end portion is made the wind tunnel upper plate 24, and the lower end portion of the wind tunnel plate 18 is made the wind tunnel lower plate 26. The interior of the wind tunnel plate 18 is opened downward at the lower end of the wind tunnel lower plate 26. Between the right and left portions of the wind tunnel lower plate 26, a plurality of inverted trapezoidal lower support plates 28 constituting the surrounding body are bridged, and the plurality of lower support plates 28 are respectively in the front-rear direction. And at equal intervals in the front-rear direction.

  An air guide partition 30 is provided between the upper part of the wind tunnel plate 18 and the upper part of each exhaust duct partition 16, and the air guide partition 30 has air permeability and a substantially rhombic cylindrical shape. Has been. The air guide partition wall 30 is bridged between the front plate and the rear plate of the airframe 12, and the inside of the air guide channel partition 30 is an air guide channel 32. The lower portion of the air guide partition 30 is parallel to the opposing exhaust duct partition 16 and parallel to the opposing wind tunnel plate 18.

  On the left and right sides of the wind tunnel plate 18, between the wind tunnel plate 18 and the wind guide partition wall 30, between the wind guide partition wall 30 and the exhaust channel partition wall 16, and between the wind tunnel plate 18 and the exhaust guide plate 18. A grain flow path 34 that constitutes a storage chamber is formed between the air channel partition wall 16 and the grain K stored in the grain tank 14 flows (flows) into the grain flow path 34.

  Between the lower ends of the pair of grain flow paths 34, a cylindrical shutter drum 36 as a feeding means that constitutes the flow means and the surrounding body is located immediately below the lower end of the wind tunnel plate 18 (lower end of the wind tunnel lower plate 26). The shutter drum 36 substantially closes the lower end of each grain flow channel 34 and is spanned between the front plate and the rear plate of the machine body 12 so as to be rotatable about an axis. A pair of rectangular slits 38 that are elongated in the axial direction are formed on the outer periphery of the shutter drum 36. One slit 38 is disposed on the front side of the outer periphery of the shutter drum 36, and the other slit 38 is Further, it is disposed on the rear side of the outer periphery of the shutter drum 36 and on the opposite side in the circumferential direction of one slit 38. Here, when the shutter drum 36 rotates and the slit 38 faces the lower end of the grain flow path 34, the grain K in the grain flow path 34 flows into the shutter drum 36 through the slit 38, and further, the shutter drum 36. Rotates and the slit 38 faces downward, so that the grain K flowing into the shutter drum 36 is discharged downward.

  As shown in FIG. 5, an extension flow plate 40 is provided below each exhaust passage partition 16, and the extension flow plate 40 is bridged between the front plate and the rear plate of the airframe 12. ing. The pair of stretcher plates 40 are inclined downward from the side plate of the body 12 toward the center in the left-right direction, and are formed in a funnel shape. Further, an air exhaust passage 42 is provided between the side plate of the body 12 and the stretched flow plate 40 and the air exhaust passage partition 16.

  A tension hopper 44 is provided in the lower part of each side plate of the body 12 so as to be openable and closable, and the grain hopper K can be stretched (supplied) into the body 12 by opening the tension hopper 44. . Here, the grain K discharged from the shutter drum 36 or the grain K stuck from the tension hopper 44 flows down between the lower ends of the pair of tension flow plates 40.

  A lower screw conveyor 46 constituting a flow means is provided between the lower ends of the pair of tension flow plates 40. The lower screw conveyor 46 has a rear end fixed to the rear plate of the machine body 12 and a front end. Projecting forward from the front of the airframe 12. The lower screw conveyor 46 has a long bowl-shaped lower conveyance rod 48, and the upper surface and the front surface of the lower conveyance rod 48 outside the machine body 12 are closed. The lower conveyance basket 48 in the machine body 12 communicates with the exhaust path 42, and the grain K that has reached between the lower ends of the pair of tension flow plates 40 flows down into the lower conveyance basket 48. A lower screw 50 is provided in the lower conveying basket 48, and the grain K that has flowed into the lower conveying basket 48 is conveyed forward by the lower screw 50. Further, the lower wall and the right side wall of the lower transport bar 48 are rotatable with respect to the left side wall of the lower transport bar 48, and the lower wall and the right side wall of the lower transport bar 48 become the left side wall of the lower transport bar 48. By being rotated, the inside of the lower conveyance rod 48 is opened to the lower side and the right side.

  In front of the right side portion of the machine body 12, an elevator 52 that constitutes a flow means is erected, and the upper part of the elevator 52 protrudes upward from the upper surface plate of the machine body 12. An endless belt 54 is disposed in the elevator 52, and buckets 56 are attached to the endless belt 54 at regular intervals. The lower end in the elevator 52 is communicated with the front end in the lower conveyance basket 48, and the grain K discharged from the lower screw conveyor 46 (the front end in the lower conveyance basket 48) and deposited on the lower end in the elevator 52 is endless. The belt 54 is lifted and conveyed by the bucket 56 to the upper end in the elevator 52 by the rotation of the belt 54.

  An upper screw conveyor 58 constituting a flow means is provided at the upper end of the machine body 12. The upper screw conveyor 58 has a rear end arranged immediately below the center of the upper surface plate of the machine body 12, and a front end of the upper body of the machine body 12. Projects from the faceplate. The upper screw conveyor 58 has a long bowl-shaped upper conveying bar 60, and the lower surface of the rear end of the upper conveying bar 60 is open. The front end in the upper conveying basket 60 is communicated with the upper end in the elevator 52, and the grain K conveyed to the upper end in the elevator 52 flows down to the front end in the upper conveying basket 60. An upper screw 62 is provided in the upper conveyance basket 60, and the grain K that has flowed down to the front end in the upper conveyance basket 60 is conveyed backward by the upper screw 62. In addition, the front end in the upper transport rod 60 can communicate with the discharge pipe 64, and when the front end in the upper transport rod 60 communicates with the discharge pipe 64, it flows down to the front end in the upper transport rod 60. The finished grain K is discharged from the grain drying apparatus 10 through the discharge pipe 64.

  Below the rear end of the upper screw conveyor 58, a disk-shaped leveling machine 66 that constitutes a flow means is rotatably provided, and is conveyed to the rear end of the upper screw conveyor 58 (the rear end in the upper conveying basket 60). The cereal grains K that flow down to the upper surface of the rotating leveling machine 66 are evenly distributed and distributed into the cereal tank 14 by centrifugal force.

  A substantially rectangular cylindrical furnace case 68 is provided on the left side of the elevator 52 at the lower front portion of the body 12. The furnace case 68 communicates with the outside air inlet 22. The front side of the furnace case 68 is covered with a substantially rectangular plate-shaped furnace cover 70, and the furnace cover 70 is removable from the furnace case 68. A plurality of slit-shaped outside air inlets 72 are formed in the furnace cover 70, and the inside of the furnace case 68 is communicated to the outside of the body 12 through the outside air inlet 72.

  A far-infrared radiator 74 as a radiation tube constituting the radiator is disposed in the wind tunnel plate 18 (the air duct 20). The far-infrared radiator 74 is formed in a tubular shape and is bent in a U-shape as a whole. The far-infrared radiator 74 has an upper portion and a lower portion that extend in the front-rear direction, and an upper end and The lower end is disposed on the outside air inlet 22 side. The far-infrared radiator 74 has a lower portion whose diameter is larger than that of the upper portion, and an insertion cylinder 74A is formed at the lower end of the far-infrared radiator 74 with a reduced diameter.

  Under the far-infrared radiator 74, a pair of upper rails 76 each having a substantially inverted L-shaped cross section constituting the radiator are fixed, and the pair of upper rails 76 are respectively extended in the front-rear direction. In addition, they are arranged in the horizontal direction. As shown in FIGS. 6 and 11, the upper portion of the upper rail 76 has an inverted V-shaped cross section, and the lower portion of the upper rail 76 is connected to the laterally outer end of the body 12 of the upper portion. . A lower portion of the rear end portion of the upper rail 76 is formed with a notch 76A as a supported portion. The notch 76A is opened downward and rearward, and the front end is disposed vertically in the front-rear direction. Yes. The upper rail 76 may have a pentagonal cross section. In this case, the inside of the upper rail 76 is opened downward.

  As shown in FIGS. 5, 10, and 11, a pair of lower rails 78 each having a substantially inverted L-shaped cross section that forms a surrounding body are disposed in the lower portion of the wind tunnel plate 18. The rails 78 are respectively extended in the front-rear direction in the vicinity of the rear end from the front end of the wind tunnel plate 18 and arranged in the left-right direction. The upper part of the lower rail 78 has an inverted V-shaped cross section, and the lower part of the lower rail 78 is connected to the outer end in the left-right direction of the body 12 of the upper part. A columnar support shaft 78A as a rotation shaft (support portion) is fixed to the lower portion of the rear end of the lower rail 78, and the support shaft 78A projects in parallel in the left-right direction from the lower rail 78. ing. The lower rail 78 may have a pentagonal cross section. In this case, the inside of the lower rail 78 is opened downward.

  The pair of lower rails 78 are supported on the upper side of a plurality of rectangular support plates 80 constituting the surrounding body, and the plurality of support plates 80 are each perpendicular to the front-rear direction and spaced apart from each other in the front-rear direction. Open and arranged. The support plate 80 is fixed in a state of being partially overlapped with the lower support plate 28 in the wind tunnel lower plate 26, and the pair of lower rails 78 is connected to the wind tunnel via the support plate 80 and the lower support plate 28. The lower plate 26 is supported. The upper rail 76 is placed on the lower rail 78, and the front end portion of the notch 76A of the upper rail 76 is in contact with the support shaft 78A of the lower rail 78 from the front side and the upper side. As shown in FIG. 3, the far-infrared radiator 74 is arranged in the wind tunnel plate 18 (the air blowing path 20).

  A burner 82 as dry air generating means is fixed to the lower end of the far-infrared radiator 74, and the combustion cylinder 82 </ b> A on the tip side is inserted into the insertion cylinder 74 </ b> A of the far-infrared radiator 74. At the same time, it is disposed in the furnace case 68.

  The upper end of the far-infrared radiator 74 is an exhaust port 84 and faces the outside air inlet 22 in the vicinity of the outside air inlet 22, and the hot air (heated air flow) generated by the burner 82 is far infrared. While the radiator 74 is heated, it is discharged from the exhaust port 84 into the air blowing path 20. Further, the far-infrared radiator 74 is heated by the hot air, so that the far-infrared radiation is emitted from the far-infrared radiator 74 and the air in the air passage 20 is heated.

  As shown in FIGS. 6 and 7, a rectangular box-shaped burner base 86 as a fixing means is fixed to the lower side of the burner 82, and the burner base 86 is fixed to the lower wall of the furnace case 68. Thus, the positions of the burner 82 and the far-infrared radiator 74 are fixed. Further, the burner base 86 is removable from the lower wall of the furnace case 68, and the inside is opened downward.

  A substantially rectangular plate-shaped fixing base 88 (see FIGS. 8 to 10) as a maintaining means is accommodated in the burner base 86, and the fixing base 88 is rotated to the front portion of the burner base 86 at the base end. It is supported movably.

  As shown in FIGS. 1 to 3, a cuboid box-like blower mounting base 90 is provided at the lower rear surface of the airframe 12, and the inside of the blower mounting base 90 communicates with each of the exhaust passages 42. A front end of the blower 92 is attached to the rear surface of the blower mounting base 90, and one end of a flexible exhaust duct 94 is attached to the rear end of the blower 92.

  As a result, when the blower 92 is driven, normal temperature outside air (normal temperature air) is sucked into the air flow path 20 from the outside air introduction port 72 of the furnace cover 70 through the furnace case 68 and the outside air inlet 22, and The wind tunnel plate 18, the grain downflow passage 34, the exhaust passage partition 16, the exhaust passage 42, and the blower mount 90 are sucked into the blower 92 and exhausted through the exhaust duct 94. In addition, the outside air blown through the upper part of the grain downflow passage 34 passes through the air guide passage partition 30 and the air guide passage 32.

  Further, the hot air discharged from the exhaust port 84 of the far-infrared radiator 74 and the outside air heated by the far-infrared radiation radiated from the far-infrared radiator 74 are mixed to produce dry air. Is generated, the dry wind passes through the grain flow path 34.

  As shown in FIG. 4, an operation panel 96 (control device) as a control means is provided in the lower front portion of the fuselage 12 directly below the left side portion of the furnace case 68, and the operation panel 96 is provided with the grain drying device 10. Are connected to each drive unit. The operation panel 96 is provided with various operation switches (not shown) such as a tension operation switch, a drying operation switch, a discharge operation switch, and a stop switch, and various operation switches of the operation panel 96 are operated. Thus, the grain drying apparatus 10 is controlled (operated, stopped, etc.) by the operation panel 96.

  Next, the operation of the present embodiment will be described.

  In the grain drying apparatus 10 having the above configuration, when the tension operation switch of the operation panel 96 is operated, the lower screw conveyor 46, the elevator 52, the upper screw conveyor 58, and the leveling machine 66 are driven, and the tension operation is started. Thereafter, the tension hopper 44 is opened, and the harvested grain K is tensioned into the machine body 12. Grain K stretched into the machine body 12 is guided to the lower screw conveyor 46 by the stretched flow plate 40, passes through the elevator 52, the upper screw conveyor 58 and the leveling machine 66 from the lower screw conveyor 46, and into the grain tank 14. It is conveyed (stored) to each grain flow path 34.

  When the drying operation switch on the operation panel 96 is operated after the tension operation is completed, the shutter drum 36, the lower screw conveyor 46, the elevator 52, the upper screw conveyor 58, the leveling machine 66 and the blower 92 are driven, and the burner 82 is ignited and the drying operation is started.

  In the drying operation, the shutter drum 36, the lower screw conveyor 46, the elevator 52, the upper screw conveyor 58, and the leveling machine 66 are driven so that the grain K stored in the grain tank 14 is transferred to the grain flow down path 34, the shutter drum. 36, the lower screw conveyor 46, the elevator 52, the upper screw conveyor 58 and the leveling machine 66 are returned to the grain tank 14 and circulated in the grain drying apparatus 10.

  Further, ambient air outside the airframe 12 is sucked and introduced into the furnace case 68 from the external air inlet 72 of the furnace cover 70 by driving the blower 92, and the wind tunnel is passed through the external air inlet 22 on the front plate of the airframe 12. By being sucked and introduced into the plate 18 (in the air passage 20), hot air generated by the burner 82 is released into the air passage 20 from the exhaust port 84 of the far-infrared radiator 74, and the far-infrared radiator 74. Is heated by the hot air and radiates far infrared rays to heat the outside air in the air passage 20. For this reason, dry air is generated in the air flow path 20, and this dry air is sucked and blown to the grain flow path 34 through the wind tunnel plate 18 to absorb the moisture of the grain K in the grain flow path 34. Cereal K is dried. The dry air after absorbing the moisture of the grain K is sucked and blown to the blower 92 through (passes through) the exhaust passage partition 16, the exhaust passage 42, and the blower mounting base 90, and further passes through the exhaust duct 94. After being exhausted.

  When the discharge operation switch of the operation panel 96 is operated after the drying operation is completed, the shutter drum 36, the lower screw conveyor 46, the elevator 52, the upper screw conveyor 58 and the leveling machine 66 are driven, and the discharge operation is started. Furthermore, the front end in the upper conveyance basket 60 is communicated with the discharge pipe 64, whereby the grain K is discharged from the grain drying device 10 through the discharge pipe 64.

  By the way, during the drying operation of the grain drying apparatus 10, foreign matters (dust, branches, etc.) are generated (dropped off) from the grain K. The foreign matter that has passed through the exhaust passage partition 16 from the grain downflow passage 34 is sucked into the blower 92 through the exhaust passage 42 and the inside of the blower mounting base 90 and discharged through the exhaust duct 94, or the exhaust passage. It adheres on the tension flow board 40 through 42. The foreign matter that has passed through the wind tunnel plate 18 from the grain flow down path 34 falls to the peripheral surface of the shutter drum 36 via the blower path 20 and is put together with the grain K in the shutter drum 36, the lower screw conveyor 46, the elevator 52, and the upper screw conveyor. It returns to the grain tank 14 via 58 and the leveling machine 66, or adheres to the inner side surface 24 </ b> A of the lower end portion of the wind tunnel upper plate 24 of the wind tunnel plate 18 via the air passage 20.

  The foreign matter adhering to the tension flow plate 40 is, for example, the lower wall and the right side wall of the lower conveyance rod 48 are rotated with respect to the left side wall of the lower conveyance rod 48, and the inside of the lower conveyance rod 48 is opened to the lower side and the right side. Therefore, it can be easily removed and discharged. On the other hand, the foreign matter adhering to the inner side surface 24A of the lower end portion of the wind tunnel upper plate 24 of the wind tunnel plate 18 is easily accumulated.

  Therefore, as shown in FIG. 6, after the furnace cover 70 is removed from the furnace case 68 and the burner base 86 is removed from the lower wall of the furnace case 68, the upper rail 76 on the lower side of the far-infrared radiator 74 The far-infrared radiator 74 is slid forward relative to the lower rail 78 in the trunk plate 18, and the far-infrared radiator 74 is drawn out to the front side of the fuselage 12 through the outside air inlet 22 and the furnace case 68 of the front plate of the fuselage 12. Accordingly, foreign matter can be removed from the inner side surface 24A of the lower end portion of the wind tunnel upper plate 24 through the furnace case 68 and the outside air inlet 22 without being obstructed by the far-infrared radiator 74 (lower end portion of the wind tunnel upper plate 24). Can clean the inner surface 24A).

  However, when the side wall of the installation room of the grain drying apparatus 10 is disposed in the vicinity of the front side of the machine body 12 or when the weight of the far-infrared radiator 74 is large, the far-infrared radiator 74 can be pulled out to the front side of the machine body 12. This may not be possible, and it may be difficult to remove foreign matter from the inner side surface 24A of the lower end portion of the wind tunnel upper plate 24.

  Here, in the grain drying apparatus 10, after the grain K is discharged, the furnace cover 70 is removed from the furnace case 68 and the burner base 86 is removed from the lower wall of the furnace case 68. As shown in FIG. 10, the far-infrared radiator 74 is rotated (lifted) about the support shaft 78A while the front end portion of the notch 76A of the upper rail 76 is in contact with the support shaft 78A of the lower rail 78. ), The space between the far-infrared radiator 74 and the inner side surface 24A of the lower end portion of the wind tunnel upper plate 24 is enlarged.

  Therefore, the inner side 24A of the lower end portion of the wind tunnel upper plate 24 can be easily seen through the inside of the furnace case 68 and the outside air inlet 22 of the body 12 front plate, and the outside air inlet 22 inside the furnace case 68 and the body 12 front plate. It is possible to easily insert a soot and an air gun as a removing means between the far-infrared radiator 74 and the inner side surface 24A of the lower end portion of the wind tunnel upper plate 24 through the inner wall of the wind tunnel upper plate 24. The foreign matter can be removed from the side surface 24 </ b> A, and the foreign matter can be dropped onto the peripheral surface of the shutter drum 36. Further, the lower wall and the right side wall of the lower conveying rod 48 are rotated with respect to the left side wall of the lower conveying rod 48, the inside of the lower conveying rod 48 is opened to the lower side and the right side, and the discharge operation switch of the operation panel 96 is set. By operating, the foreign matter dropped on the peripheral surface of the shutter drum 36 can be dropped through the shutter drum 36 and the lower transport rod 48 and discharged out of the machine body 12.

  Therefore, even when the far-infrared radiator 74 cannot be pulled out to the front side of the airframe 12, foreign matter can be removed from the inner side surface 24A of the lower end portion of the wind tunnel upper plate 24, and the foreign matter can be discharged out of the airframe 12.

  Further, when the far-infrared radiator 74 is rotated upward about the support shaft 78A, the fixed base 88 in the burner base 86 is rotated downward with respect to the burner base 86, and the burner base In a state of being in contact with the front wall of 86, it is placed on the lower wall of the furnace case 68 at the tip. Thereby, the far-infrared radiator 74 is supported (fixed) on the lower wall of the furnace case 68 via the burner 82, the burner base 86, and the fixed base 88, and the far-infrared radiator 74 is rotated upward. Maintained. For this reason, it is not necessary for the operator to maintain the state in which the far-infrared radiator 74 is rotated upward, and the work for removing the foreign matter from the inner side surface 24A of the lower end portion of the wind tunnel upper plate 24 can be facilitated. Can be easily discharged out of the machine body 12.

  Further, it is necessary for two persons to pull out the far-infrared radiator 74 to the front side of the fuselage 12 through the outside air inlet 22 of the front plate of the fuselage 12 and the furnace case 68, but the infrared radiator 74 is supported by the support shaft 78A. The work of turning the upper side around the center can be performed by one person. For this reason, the foreign matter can be more easily removed from the inner side surface 24A of the lower end portion of the wind tunnel upper plate 24, and the foreign matter can be more easily discharged out of the body 12.

  In the present embodiment, the foreign matter is removed from the inner side surface 24A of the lower end portion of the wind tunnel upper plate 24 when the infrared radiator 74 is rotated upward about the support shaft 78A. However, when the infrared radiator 74 is rotated upward about the support shaft 78A, other parts (the other part of the wind tunnel plate 18, the lower support plate 28, the shutter drum 36, the far infrared radiator 74, the upper The foreign matter may be removed from the rail 76, the lower rail 78 or the support plate 80).

10 Grain drying device 12 Airframe (device main body)
18 Wind tunnel board (surrounding body)
28 Lower support plate (surrounding body)
36 Shutter drum (surrounding body)
74 Far-infrared radiator (emitter)
76 Upper rail (radiator)
78 Lower rail (surrounding body)
78A Support shaft (rotating shaft)
80 Support plate (surrounding body)
88 fixed base (maintenance means)
K grain

Claims (2)

A device body in which the grain is accommodated;
A radiator that is provided in the apparatus main body and is rotatable in the vertical direction around a rotation axis on one side in the longitudinal direction , and the grain is dried by emitting far-infrared rays,
A surrounding body provided around the radiator, wherein the radiator is rotated about the rotation axis to change a distance from the radiator;
Grain drying equipment with.   The grain drying apparatus according to claim 1, further comprising a maintaining unit that maintains a state in which the radiator is rotated.

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