JP2016061478A - Grain dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grain dryer which enables maintenance work of a foreign substance screening part without requiring unstable high place work.SOLUTION: A grain dryer configures a box body in which a storage chamber (2) for storing grain, a drying chamber (3) for receiving the grain from the storage chamber (2) and drying it with hot air, and a grain collecting chamber (4) for collecting the grain received from the drying chamber (3) and delivering it are arranged in this order from the top, and it is configured by including a lift (17) for delivering the grain from the grain collecting chamber (4) to the storage chamber (2). As the grain collecting chamber (4) includes a grain flowing down plate (21) for guiding the grain received from the drying chamber (3) in an inclined manner, a lower part spiral (25) for delivering the grain received at a lower end of the inclination of the grain flowing down plate (21) to the lift (17), and a foreign substance screening machine (22) for removing foreign substances in the charged grain at an upper part of the grain flowing down plate (21), maintenance can be performed by low place work.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a grain dryer for circulating and drying grains such as straw by hot air heated by a burner.

  A grain dryer described in Patent Document 1 is known. This grain dryer consists of a storage part, a drying part, and a grain collection room arranged in a box shape in this order from the top. Thus, the entire grain can be dried uniformly.

  About the said grain dryer, the foreign-material selection part is provided in the inlet_port | entrance of a storage part, and foreign foreign materials, such as straw scraps mixed in the case of threshing etc., can be removed.

Japanese Patent No. 5257837

  However, the foreign matter sorting unit placed at the entrance of the storage unit requires regular maintenance work to clean clogs and remove separated foreign matter, so each time it climbs to the top of the grain dryer. In the upper part of the grain dryer, it was forced to work at an unstable high place and carry out the separated foreign matter.

  An object of the present invention is to provide a grain dryer that can stably perform maintenance work of a foreign matter sorting unit without requiring unstable work at a high place.

  The invention which concerns on Claim 1 received from the storage chamber (2) which accommodates a grain, the drying chamber (3) which receives a grain from this storage chamber (2) and dries with hot air, and this drying chamber (3) A box body in which grain collection rooms (4) for collecting and sending out grains are arranged in order from above is provided, and an elevator (17) for sending grains from the grain collection room (4) to the storage chamber (2) is provided. In the grain dryer, the grain collection room (4) receives the grain collection room (4) at the grain falling plate (21) for inclining and guiding the grains, and the inclined lower end of the grain falling plate (21). It comprises a lower spiral (25) for sending grain to the elevator (17), and a foreign matter sorter (22) for separating and removing foreign matter in the stretched grain.

  According to a second aspect of the present invention, in the first aspect of the invention, the foreign matter sorter (22) is constituted by a cylindrical sorting net (22a) in which a large number of grain transmission slits (22b) are formed in a cylindrical member. The type sorting net (22a) is arranged in the cereal collection chamber (4) along the longitudinal direction of the box, and the wall (4a) of the longitudinal end of the box facing one end of the cylindrical sorting net (22a) ) Is formed with an opening (4d) for grain input.

  According to a third aspect of the present invention, in the second aspect of the present invention, the grain input from the opening (4d) to the front end of the cylindrical sorting net (22a) is applied to the wall surface (4a) of the longitudinal end of the box. A tension hopper (23) is provided, and a foreign substance container (24) for receiving foreign substances is provided at the end of the cylindrical sorting net (22a), and a foreign substance outlet is provided in the foreign substance container (24). It is characterized by.

  The invention according to claim 4 is the invention according to claim 2 or claim 3, wherein the roller (26a, 26b) for rotatably supporting the cylindrical sorting screen (22a) is provided with the wall portion (4a, 4b).

  According to the first aspect of the invention, the cereal grains from which foreign matters such as straw scraps have been separated by the foreign matter sorter (22) provided in the cereal collection chamber (4) are separated from the grain falling plate (21) and the lower spiral (25 ) Through which the foreign matter is sorted out and transferred to the circulation path. Moreover, since the arrangement position of the foreign material sorter (22) can be lowered, maintenance and foreign matter disposal operations are facilitated.

  According to the invention of claim 2, in addition to the effect of the invention of claim 1, the foreign matter sorter (22) is configured to sort the cereal grains from the opening (4d) of the wall surface (4a) at the longitudinal end of the box. It can be received by the net (22a) and permeate through the grain transmission slit (22b) to separate foreign substances such as straw scraps. Moreover, a long cylindrical sorting net | network (22a) can be formed by arrange | positioning in the attitude | position along the longitudinal direction of a box, and a sorting capability can be improved.

  According to the invention of claim 3, in addition to the effect of the invention of claim 2, the foreign matter sorter (22) feeds the grain into the cylindrical sorting net (22a) from the tension hopper (23) on the wall surface at the long end. Accordingly, the grain can be easily put in, and the remaining foreign matter can be easily taken out from the foreign matter outlet of the foreign matter containing portion (24) at the end.

  According to the invention of claim 4, in addition to the effect of the invention of claim 2 or claim 3, the cylindrical sorting net (22a) can be rotated by rollers (26a, 26b) attached to the constituent members of the grain dryer. Since it is supported, the foreign material sorter (22) can be configured easily and stably.

Internal perspective side view of grain dryer Internal perspective front view of grain dryer Front view of the main part of the collection room Side view of the main part of the collection room Side view of cylindrical sorting screen Side view of the inner periphery of the cylindrical sorting screen Side view of the outer periphery of the cylindrical sorting screen Enlarged front view of support part of cylindrical sorting screen Configuration diagram around a cylindrical sorting screen Side view of dryer dust removal equipment installed in grain dryer Side view of essential parts of the dust removal device in use state (a) and storage state (b) Internal perspective front view of a grain dryer equipped with a differently configured dryer dust removal device

First, the whole structure of the grain dryer which comprises this invention is demonstrated. 1 and 2 are an internal perspective side view and an internal perspective front view of a grain dryer.
Reference numeral 1 denotes a frame of a grain dryer, in which a storage chamber 2, a drying chamber 3, and a grain collection chamber 4 are stacked in order from the top. In the drying chamber 3, inclined grain flow passages 5, 5 are formed with the air-permeable mesh bodies 5 a, 5 a facing left and right, and a pair of left and right grain flow passages 5, 5 are formed in a V shape in front view. doing. The upper side of each grain flow passage 5, 5 further forms a diamond-shaped space inside the left and right grain flow passages 5, 5 so as to form a V shape, and this space is formed in the hot air chamber 6. . In addition, the lower half part of the space forming body having a rhombus cross section is constituted by a ventilation net body, and the V-shaped upper half part is constituted by a non-breathable plate material.

  A feeding valve 7 is provided below the left and right junctions at the lower ends of the grain flow passages 5 and 5. The feeding valve 7 is formed in a cylindrical body having a circular cross section. The feeding valve 7 receives grains from an inlet port formed in a part of the outer periphery with forward rotation and reverse rotation, and the lower cereal collection chamber 4 according to forward and reverse rotation. It is the structure which makes it fall.

  In the hot air chamber 6 formed in the rhombus space inside the drying chamber 3, a far-infrared radiator 10 is formed in a polygonal cylindrical shape and has a length extending from the front side wall to the rear side wall of the drying chamber 3. And are detachably fixed to the front and rear surfaces of the machine wall.

  The far-infrared radiator 10 is configured to receive hot air from a burner 13 disposed in front of the dryer on the inlet side. That is, for example, a burner wind tunnel 14 having a vaporization burner 13 disposed at the center is attached to the front side wall of the machine body, and the burner wind tunnel 14 and the entrance of the far-infrared radiator 10 are communicated.

  A suction fan 15 is provided on the back side of the machine body, and is formed outside the grain flow passages 5 and 5 from the hot air chamber 6 which is a rhombus space through the grain flow passages 5 and 5 by the wind of the suction fan 15. It is comprised so that it may ventilate toward the exhaust path 16,16.

  In the cereal collection chamber 4, the lower conveying device 25 provided with a transfer spiral in the center and the grains received from the drying chamber 3, or the cereal stuck from the side of the machine body (not shown) are guided to the center. The left and right grain flow-down plates 21 and 21 are provided, and the grain fed from the feeding valve 7 is received by the lower transport device 25 and transferred to, for example, the front side of the machine body. Further, a foreign matter sorter 22 (to be described later) is disposed in the front-rear direction along one side end of the cereal collection chamber 4, and one end of the sorter 22 is used as a grain insertion port to separate relatively large foreign matters such as straw scraps in the cereal. .

  Elevator 17 is provided on the front side of the machine body, buckets 17a, 17a,... Are provided inside, so that the grains from lower conveyor 25 are picked up and cerealed at the start end of upper conveyor 31 provided on the upper ceiling. It is composed. A hanging shaft 32 is provided at the center of the ceiling on the terminal end side of the upper conveying device 31 provided with a transfer spiral, and a rotating diffusion plate 33 is attached to the hanging shaft 32.

  A suction fan 15 is provided on the back side of the machine body, and is formed outside the grain flow passages 5 and 5 from the hot air chamber 6 which is a rhombus space through the grain flow passages 5 and 5 by the wind of the suction fan 15. It is comprised so that it may ventilate toward the exhaust path 16,16.

(Foreign material sorter)
The foreign matter sorter 22 will be described in detail. As shown in FIGS. 3 and 4, the front view and the front view of the main part of the cereal collection room along the left or right side end of the cereal collection room 4. A cylindrical sorting net 22a extending in the direction from the front plate 4a to the back plate 4b of the cereal collection chamber 4 is disposed so as to be inclined downward, and one end thereof communicates with the tension hopper 23 attached to the input opening 4d formed in the front plate 4a. In addition, a foreign substance box 24 which is a foreign substance container is provided at the other end so that foreign substances can be accommodated. The foreign matter box 24 is provided with an outlet for taking out foreign matter outside the machine body. The cylindrical sorting net 22a is configured to be removable from the front of the machine body, and is configured to be attachable to any of the left and right cereal collection rooms 4 by selection.

  As shown in FIG. 5, the cylindrical sorting net 22a has a relatively large size such as straw scraps by allowing grains to permeate through a porous portion 22b in which a large number of square or axially long slits are punched in a cylindrical member. By configuring the non-porous guide portion 22c to be a predetermined length (at least about 200 mm) on the input end side and guiding it while lying down the position of the dust at the time of charging, the dust can be separated. Sorting efficiency can be ensured by preventing clogging of the inlet portion caused by being stuck in the hole.

  On the inner surface of the porous portion 22b of the cylindrical sorting net 22a, a feed blade 22d having a height of about 30 mm is formed in a spiral shape on the inner peripheral surface of the porous portion, as shown in a side view of the inner peripheral configuration in FIG. Thus, the movement of the light garbage can be assisted by the action of the feed blade 22d accompanying the rotation.

  On the outer surface of the porous portion 22b of the cylindrical sorting net 22a, as shown in FIG. 7, a side view of the configuration of the outer peripheral portion is provided with a reinforcing ring 22e at a position approximately divided into three in the longitudinal direction. When caught on the sorting net 22a, the side wall of the cereal collecting chamber 4 is opened, and the reinforcing ring 22e is struck while rotating the cylindrical sorting net 22a. .

  As shown in FIG. 8, an enlarged front view of the support portion of the cylindrical sorting net 22a is provided with upper and lower roller support portions 26a and 26b on the front plate 4a and the back plate 4b of the cereal collection chamber 4, respectively. The outer periphery of both ends of the net 22a is supported by four rollers. The upper roller support portion 26a is composed of two rollers R and R that are fixedly disposed in the vicinity of the drying net 5a, and the lower roller support portion 26b is a fulcrum of the roller R that is disposed in the vicinity of the grain falling plate 21. The cylindrical sorting net 22a is moved from the position of the opening 4d to the position of the opening lid 4e and is pivotally supported so that it can be removed.

  Further, as shown in FIG. 9 showing the configuration around the cylindrical sorting net 22a, the inner roller R of the upper roller support portion 26a provided on the back plate 4b of the grain collection chamber 4 is moved from the lower helix 25 which is a lower conveying device. Driven by the transmission belt 27, the cylindrical sorting net 22a is rotated. A scraper 28 made of a rubber plate is provided in contact with the outer periphery of the cylindrical sorting net 22a, and the inspection lid 4f is closed by holding the scraper 28 on the inner surface of the inspection lid 4f provided on the side plate 4c of the grain collection chamber 4. It becomes possible to clean the outer periphery of the cylindrical sorting net 22a only, and maintenance such as replacement of the scraper 28 can be performed only by opening the inspection lid 4f.

  With the operation of the grain dryer 1 configured as described above, the grains received by the grain falling plate 21 of the grain collection chamber 4 are sent from the lower spiral 25 at the lower end of the slope to the elevator 17 and circulated to the storage chamber 2. Since the cereal grains from which foreign matter such as straw scraps has been separated by the foreign matter sorter 22 provided above the grain falling plate 21 are also circulated and processed through the grain falling plate 21 and the lower spiral 25, Since the foreign matter sorting machine 22 provided in the grain collection room 4 can sort the foreign matter in the grain stuck in the grain collection room 4 and shift to the circulation path, the foreign matter sorter 22 in the lower part of the box is cleaned of clogging and Maintenance work such as carrying out foreign matter is possible without requiring work at high places.

  The foreign matter sorter 22 receives the cereal grains introduced from the opening 4d of the wall 4a at the longitudinal end of the rectangular parallelepiped box body in the cylindrical sorting net 22a, permeates the grains through the grain permeation slit 22b, and cracks. And the like, and the maximum sorting capacity can be ensured by the foreign matter removing process along the longitudinal direction of the box configured in a rectangular parallelepiped shape.

  In addition, the foreign matter sorter 22 can easily put the grain by putting the grain into the cylindrical sorting net 22a from the stretch hopper 23 on the wall surface at the longitudinal end of the box structure. Residual foreign matter can be easily taken out from the 24 foreign matter outlets.

  Further, since the cylindrical sorting net 22a is rotatably supported by the rollers 26a and 26b attached to the constituent members of the grain dryer 1, the foreign matter sorting machine 22 can be configured to be simple and stable.

  In addition, the cylindrical member which comprises the above-mentioned cylindrical selection net | network 22a is a polygonal cylinder member according to a cylindrical member, ie, the polygonal cylinder member of about 30-40 angle | corners which can be comprised so that a big foreign material can be isolate | separated. Including.

(Dust removal device)
Next, the dryer dust removing device will be described.
As shown in FIG. 10, a side view of the mounting configuration of the dryer dedusting device 41 is configured by forming a cleaning sheet 41 a in a roll shape and attaching it to the back of the grain dryer 1. As shown in FIG. 11 (a), the dryer dust removing device 41 has one end of the sheet 41a fixed to the drum 42, and the other is attached with a bar 41b so that the sheet 41a can be kept horizontal. By connecting the string 41c and providing the drum 42 with a winding handle 42a, dust can be discharged to the front side of the machine body. Further, as shown in FIG. 11B, the seat 41a can be wound up by turning the handle 42a.

  As described above, the dryer dust removing device 41 having the above-described configuration can be set in the dryer with a simple and inexpensive configuration, and is a convenient tool that can be easily taken out during cleaning and can be easily stored. The discharge part of the lower helix 25 that is difficult to clean at the center of the can be easily dealt with without placing a blue sheet or the like and forced to deal with the user individually, and can be easily attached to the dryer It is also suitable for retrofitting to existing dryers.

  In addition, the dryer dust removing device 43 according to another configuration example has one end of a cleaning sheet 43a attached to the rotating fulcrum side of the lower spiral 25, as shown in FIG. The other end of the sheet 43 a is configured to be hooked on the upper end of the grain falling plate 21. At the time of cleaning, the other end of the sheet 43a is removed and laid on the floor, and the bottom of the lower spiral 25 is opened by rotation, so that the dust in the dryer can be discharged to the outside of the machine body.

1 Grain dryer 2 Storage room 3 Drying room 4 Grain collection room 4a Front plate (front wall)
4b Back plate (rear wall)
4d Input opening 17 Elevator 21 Grain falling plate 22 Foreign matter sorter 22a Cylindrical sorting net 22b Grain permeation slit (porous part)
23 Tightening hopper 24 Foreign material box (foreign material container)
25 Lower spiral (lower conveyor)
26a Roller support part 26b Roller support part

Claims (4)

A storage chamber (2) for storing grains, a drying chamber (3) for receiving grains from the storage chamber (2) and drying with hot air, and a cereal collection for collecting and sending the grains received from the drying chamber (3) In the grain dryer comprising the elevator (17) for sending the grain from the cereal collection chamber (4) to the storage chamber (2) while configuring a box body arranged in order from the top with the chamber (4),
In the cereal collection room (4), the cereal collection room (4) is provided with a cereal falling plate (21) for inclining and guiding cereal grains, and cereals received at the inclined lower end of the cereal falling plate (21) in the elevator ( 17) A grain dryer comprising a lower spiral (25) to be sent to 17) and a foreign matter sorter (22) for separating and removing foreign matter in the cereal.   The foreign matter sorter (22) is constituted by a cylindrical sorting net (22a) in which a large number of grain transmission slits (22b) are formed in a cylindrical member, and the cylindrical sorting net (22a) is arranged along the longitudinal direction of the box. And an opening (4d) for grain input is formed on the wall surface (4a) at the longitudinal end of the box body facing one end of the cylindrical sorting net (22a). The grain dryer according to claim 1.   The wall surface (4a) at the longitudinal end of the box is provided with a tension hopper (23) for putting grain from the opening (4d) to the front end of the cylindrical sorting screen (22a), and the cylindrical type The grain dryer according to claim 2, wherein a foreign matter container (24) for receiving foreign matter is provided at the end of the sorting net (22a), and a foreign matter outlet is provided in the foreign matter container (24). The roller (26a, 26b) that rotatably supports the cylindrical sorting screen (22a) is provided on the wall (4a, 4b) on the box side, according to claim 2 or claim 3. The grain dryer described.

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