JP5520264B2 - Method for removing dust in transported grain and laterally fed grain transport device - Google Patents

Description

  The present invention relates to a method for removing dust in a transported grain and a grain transporting device for transporting grains such as brown rice, brown rice, white rice, soybeans, and red beans to a storage unit such as a tank or silo or a processing unit such as a dipping tank. It is related to.

2. Description of the Related Art Conventionally, a transport apparatus that transports a transported object by moving a transport body provided in a chain in a machine casing that is formed long in the transport direction is known (see Patent Document 1).
However, there is no device for removing dust in the grain. This is because the rice cake is removed in the rice hull sorting process and the rice milling process, so the amount of dust present in the grains being transported is considered to be low, and it is not regarded as a problem. .
Therefore, the structure which provided the dust removal apparatus in the hulling sorter conventionally is well-known (refer patent document 2).
Conventionally, a structure in which buns are provided in a packaging line of a rice milling apparatus is known (see Patent Document 3).
This bun has a well-known configuration, with thin axes lined obliquely at an interval narrower than the width of the rice, and the grain is flowed from above to the bun stone formed by this axis, and the grain and small rice etc. To be separated.

JP 2002-068451 A JP 2001-239216 A JP-A-5-123591

As described above, the presence of dust present in the grain being transported was not considered as a problem due to the pretreatment in the previous process of transporting. The sales state or sales form of this product has changed, and it has become necessary to remove the dust in the grain, but the reality is that the dust is not effectively removed.
Among the known examples, the known example 1 is originally intended for the conveyance of a powdery substance, so there is no idea of incorporating a dust removing device, and when a grain conveying device is used, not only the dust removing device is separately provided. Also, an elevator and the like are required.
Among the known examples, the known example 2 is provided with a dust removing device in a hulling device which is a grain pretreatment device by a conveying device, and dust in the conveying kernel cannot be removed.
Of the known examples, known example 3 is one in which a boulder is provided in a part of the milled rice processing apparatus. Since it is configured to flow down all at once and pass through the grain and drop the small rice below the vertical rail, the dust in the grain has a low specific gravity and cannot be removed efficiently.
This application pays attention to the fact that transport by the transport body is effective for removing dust adhering to the surface of the grain, and that the moving state of the grain and dust being transported is the upper layer of the grain and the lower layer of the dust. The present invention provides a method and apparatus for removing grain dust.

In the invention of claim 1, the grain by pressing the grain supplied by moving the transport body 16 of the transport conveyor 11 in the lateral direction, and the grain pressed by the transport body 16 sequentially presses the front grain. Using the contact phenomenon where the grains come into contact with each other and rub against each other, remove the adhering dust on the grain surface and transport it forward, so that the grain moves through the upper layer during transportation and the dust becomes the lower layer The carrier 16 conveys the transported grain to a dust removing body 32 having a through hole 36 of the dust removing device 30 while applying vibration to the transported grain. The grain passes through the dust removing body 32 and dust is collected from the through hole 36 . This is a method for removing dust in the transported grain that is dropped into the dust box 33 and removed by suction .
According to the second aspect of the present invention, the supply unit 5 drops and supplies the grain from above to a predetermined position above the machine casing 1A which has at least the bottom plate 2 and the side plates 3 on both the left and right sides of the bottom plate 2 and is formed long in the conveying direction. A discharge unit 10 having a drop port 8 is provided in the machine casing 1A at a predetermined distance from the supply unit 5, and the transfer unit 10 circulates between the supply unit 5 and the discharge unit 10 to convey the grain. A transport conveyor 11 having an endless chain 17 in which bodies 16 are arranged side by side at a predetermined interval is provided, and the upper casing 1A in the transport direction of the discharge unit 10 has dust to remove dust in the transported object. A dust removing device 30 is provided, and the dust removing device 30 is provided below the dust removing body 32 and a dust removing body 32 having a through-hole 36 smaller than a grain to be attached to the opening 31 provided in the bottom plate 2 of the machine casing 1A. It was, constituted by the collection box 33 connected to a suction device 54 It is obtained by the transverse feed grain conveying device.
According to a third aspect of the present invention, the transport body 16 is provided with a predetermined interval so as to transport the grain by a predetermined amount so that a space K is formed on the rear side of the preceding transport body 16. It is a kernel conveying device.
According to a fourth aspect of the present invention, the dust removing body 32 is formed by forming a plurality of through holes 36 in the left and right and front and rear directions in the thin metal plate 35, and the dust collection box 33 is detachable from the case 47 and the bottom of the case 47. The horizontal feed grain conveying device is configured to have a receiving plate 48 attached to the case 47 and to which one end of the suction pipe 51 connected to the suction machine 54 is connected to one of the left and right plates 46 of the case 47.

In the invention of claim 1, the grains can be contacted to each other during the transporting process by the transporting conveyor 11 to remove the adhering dust, and the grain and dust are separated from each other in the vertical direction while being transported by the transporting conveyor 11. Therefore, the dust removal efficiency can be improved and the grain surface can be cleaned to improve the quality.
Further, since dust can be removed during the transporting process of the lateral feed, a separate equipment such as an elevator is not required, the entire apparatus can be made inexpensive, and the space can be effectively used by reducing the equipment.
According to the second aspect of the present invention, it is possible to provide a laterally-feeding grain conveying device that removes adhering dust by bringing the grains into contact with each other during the conveying process at a low cost.
In invention of Claim 3, since a grain is conveyed by the conveyance body 16, the contact between grains can be made favorable, the removal efficiency of adhering dust of a grain can be improved, and the bottom plate 2 of the machine casing 1A can be improved. It is only necessary to provide the dust removing device 30 below the opening 31. Equipment such as an elevator is not required separately, the entire device can be made inexpensive, and the space can be effectively used by reducing the size of the equipment.
In the invention of claim 4, since the dust removing body 32 is configured by the thin metal plate 35 formed by providing a plurality of through holes 36, dust in the grain passing over the dust removing body 32 can be easily removed, Further, since the inside of the case 47 of the dust collection box 33 is sucked by the suction device 54, dust removal efficiency can be improved, and further, since dust is not stored in the case 47, the conveyance and processing operations are continued. Can be done.

The partial omission side view of a processing apparatus and a transverse feed conveyance apparatus. Schematic of a dust removing device. The longitudinal section front view of a conveyance apparatus. The perspective view of a conveyance body and an elastic scraping body. The front view of the dust removal body and dust collection box of a dust removal apparatus. The same side view. The top view of dust removal body vicinity. The top view of a dust removal body. The top view of the mounting state of a dust removing body. The schematic diagram of a grain conveyance state. The side view of the other Example of a transverse feed conveyance apparatus.

An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a grain conveying device that conveys grains such as brown rice, brown rice, white rice, soybeans, and red beans. The grain conveying apparatus 1 is an apparatus that exclusively conveys grains to a single device of a rice mill or a rice huller, a rice milling device combining these, or a bean processing device for soybeans or red beans, A conveyor 11 is provided in the housing 1A.
The configurations of the grain transfer device 1 and the transfer conveyor 11 are arbitrary. For example, the machine casing 1A is configured by providing the bottom plate 2 and the side plates 3 on the left and right sides of the bottom plate 2, and the machine casing 1A is substantially horizontal. The supply unit 5 is provided at a predetermined position above the machine casing 1A, and the discharge unit 10 having the drop port 8 is provided in the machine casing 1A at a predetermined distance from the supply unit 5.
The grain conveying apparatus 1 is provided with a supply unit 5 at least on one side in the length direction of the machine casing 1A and a discharge unit 10 on the other side, and a plurality of discharges between the discharge unit 10 and the supply unit 5 on the other side. The part 10 may be provided.

The supply unit 5 is provided with a supply port 9 in the upper part of the machine casing 1A to drop and supply the grains from above.
In the embodiment, the conveyor 11 has sprockets 12 mounted on the both ends of the machine casing 1A in the length direction by rotating shafts 13, and one of the rotating shafts 13 is driven by a drive motor 14.
The pair of sprockets 12 is hung with a chain 17 having a transport body 16 that moves with an interval smaller than the transport grain with respect to the upper surface of the bottom plate 2 (FIGS. 3 and 4).
As shown in FIG. 4, the chain 17 is formed in an endless manner by connecting both side links 18 in the front-rear direction with pins 19, and the left and right sides of a predetermined one of the side links 18 intersect with the traveling direction. A projecting portion 20 that projects is provided, and the projecting portion 20 constitutes the transport body 16. An elastic scraping body 21 made of urethane rubber or the like is attached to each protruding portion 20 of a specific transport body 16 with a predetermined number of the transport bodies 16. Reference numeral 22 denotes a fixture (note that FIG. 4 shows an elastic scraper 21 in the return stroke for easy understanding).

The elastic scraper 21 is configured to move in sliding contact with the upper surface of the bottom plate 2 of the machine casing 1A. Further, the elastic scraping body 21 is configured to move in proximity to or in sliding contact with the left and right side plates 3 of the machine casing 1A.
The transport body 16 is provided at a predetermined interval so as to transport the grain by a predetermined amount.
That is, as shown in FIG. 10, the supply amount of the grain and the interval between the transport bodies 16 are relatively set so that a space K is formed on the rear side of the preceding transport body 16.
Therefore, a dust removing device 30 for removing dust in the conveyed product is provided on the upper side in the conveying direction of the discharge unit 10.
The dust removing device 30 has an opening 31 having a predetermined length in the transport direction in the bottom plate 2 of the machine casing 1A, a dust removing body 32 mounted on the opening 31 and a dust collection box provided below the dust removing body 32. 33.

The dust removing body 32 is formed by providing a large number of through holes (slits) 36 in a thin metal plate 35. In the embodiment, the through holes 36 are formed by slits, and the through holes 36 having the same width are arranged side by side, but the width of the through hole 36 on the upper side in the transfer direction is wide, and the through hole 36 on the lower side in the transfer direction is formed. You may form narrowly in order. For example, when soybean is a conveyed product, it is formed into 1.0 millimeter, 1.2 millimeter, and 1.5 millimeter.
Reference numeral 37 denotes a handle provided on the dust removing body 32, which is used when the dust removing body 32 is attached to or detached from the insertion groove 38 between the bottom plate 2 and the dust collection box 33.
Reference numerals 39 are a pair of front and rear guide rails provided on the left and right sides of the opening 31 to facilitate movement when the dust remover 32 is mounted. Reference numeral 40 denotes a shutter that closes the opening 31 in place of the dust removing body 32.

The dust collection box 33 includes a case 47 having front and rear plates 45 and left and right plates 46 and a tray 48 that is detachably attached to the bottom of the case 47. Reference numeral 49 denotes a so-called catch clip, and reference numeral 50 denotes an inspection window provided on either the front / rear plate 45 or the left / right plate 46 of the dust collection box 33.
One end of the suction pipe 51 is connected to the left and right plates 46 of the dust collection box 33. The other end of the suction pipe 51 is connected to a suction machine (blower) 54 via a dust cyclone 52.
53 is a dust box of the dust cyclone 52.
A supply pipe 58 for supplying grains from above from an elevator (not shown) or a tank (not shown) is connected to the supply section 5 of the machine casing 1A, and a tank 59 is connected to each discharge section 10 of the machine casing 1A. And product processing equipment such as color sorters. In the present embodiment, the tank is a grain immersion tank.

  FIG. 11 shows another embodiment of the grain transfer device 1, in which an inclined portion 61 is provided on the upper transfer side of the horizontal portion 60, and the dust removing device 30 is provided on the horizontal portion 60 or the inclined portion 61.

(Operation of Example)
Next, the operation will be described.
When the drive motor 14 of the machine casing 1A is energized, the drive sprocket 12 is driven to rotate by the drive motor 14, and the transport body 16 of the transport conveyor 11 is circulated and moved toward the discharge section 10. When the grain is supplied to 1A, the grain is transported toward the discharge unit 10 by the transport body 16, and is dropped and discharged into a tank 59 provided below the discharge unit 10.
Since the dust removal device 30 for removing dust in the conveyed product is provided in the machine casing 1A on the upper side of the discharge unit 10 on the upper side in the conveyance direction among the plurality of discharge units 10, the conveyance of H It is possible to remove dust and the like in the conveyed product toward the tank 59 which is the tip.

The dust removing device 30 has an opening 31 having a predetermined length in the transport direction in the bottom plate 2 of the machine casing 1A, a dust removing body 32 mounted on the opening 31 and a dust collection box 33 provided below the dust removing body 32. Therefore, when the grain passes over the dust removing body 32 attached to the opening 31, the dust in the grain is dropped into the dust collection box 33 and removed.
That is, since the transport body 16 is provided at a predetermined interval so as to transport the grain by a predetermined amount, for example, the transport body 16 places the solid-line grain in FIG. 10 at the position of the temporary-line grain. The grain pressed by the carrier 16 sequentially pushes the forward grain, and the conveying force is sequentially propagated forward, and when the grain is pushed forward, the surface of the grain is rubbed and the grain surface adheres. Dust is removed.

Due to such various factors, a decrease in contact occurs where the surfaces of the grains being conveyed rub against each other, and the attached dust on the surface of the grains is removed.
Moreover, since the conveyance body 16 gives a vibration to the grain under conveyance, the large grain of the grains is separated into the upper layer, and the small grains are separated into the lower layer. A contact phenomenon occurs where the surfaces of each other rub against each other, and the adhering dust on the grain surface is removed.
Furthermore, not only the specific gravity selection based on the size of the grain size of the grain, but also the grain and dust, the grain is separated into the upper layer and the dust is separated into the lower layer and the upper part during conveyance, and the dust removing body 32 of the dust removing device 30 is separated. While reaching the top and being transported on the dust removing body 32, the specific gravity of grain and dust is selected and dust is removed.

In this way, during the conveyance by the conveyance body 16, the removal of the adhering dust to the grain due to the contact phenomenon and the specific gravity selection of the grain and the dust are selected, thereby improving the dust removal efficiency and the cleaning efficiency in the grain. It is done.
Since the dust removing body 32 is formed by providing a large number of through holes (slits) 36 in the thin metal plate 35, the dust can be dropped without dropping the conveyed product, and the conveyed product and the dust can be separated. Separation is performed by the removing device 30.
In this case, since the conveyed product is conveyed toward the discharge unit 10 by the conveyance body 16, the conveyed product from which the dust has been removed by the dust removing device 30 reaches the discharge unit 10.

Moreover, in this application, since the supply pipe | tube 58 which supplies a conveyed product from the upper part is connected to the supply part 5 of the machine casing 1A, regardless of the grain size and specific gravity of the grain, It is supplied into the machine casing 1A, and even during this supply, the grains adhering to each other are separated and removed by the contact phenomenon in which the grains come into contact with each other and rub against each other.
In addition, since the grain is supplied in a state of being irrelevant regardless of the grain size and specific gravity of the grain, it increases the chance that the grain size of the grain and the specific gravity selection with the dust are performed. The contact chance that the surfaces of the grains rub against each other is increased, and the removal efficiency of the attached dust on the grain surface can be improved.

Moreover, since the conveyance body 16 is attached to the chain 17, when the conveyance body 16 abuts on and pushes the grain group, vibration and impact can be applied, and removal of adhering dust and specific gravity due to contact between grains. Separation is promoted, which is preferable.
Since the dust removing body 32 is provided with a handle portion 37, when the dust removing body 32 is slid on the guide rail 39 toward the insertion groove 38 by the handle portion 37 and the dust removing body 32 is inserted into the insertion groove 38, Installation is complete.
Therefore, the dust remover 32 can be easily attached and detached, and the maintenance of the dust remover 32 is facilitated.

Further, when removing the dust remover 32, the shutter 40 is mounted below the opening 31 to prevent the transported object from dropping and foreign matter from entering the machine casing 1A.
The dust collection box 33 has front and rear plate front and rear plates 45 and left and right plate left and right plates 46, and a tray tray 48 is detachably attached to the bottom of these plates, so that dust falling from the dust removing body 32 is collected in the dust collection box 33. Get inside.
Since one end of the suction pipe 51 connected to the dust cyclone 52 is connected to one of the left and right plates 46 of the dust collection box 33, the inside of the dust collection box 33 becomes negative pressure and is conveyed on the dust removing body 32. The dust in the conveyed product is sucked into the dust collection box 33, and the sucked dust is separated and stored by the dust cyclone 52.

Therefore, even if the grain conveying device 1 is continuously operated, dust can be prevented from accumulating in the dust collection box 33 of the dust removing device 30, and continuous operation is possible.
In this case, since the tray 48 of the dust collection box 33 is detachably attached to the front and rear plates 45 and the like by a locking tool 49, the degree of contamination in the dust collection box 33 by the inspection window 50 of the dust collection box 33. And remove the tray 48 for maintenance.
Therefore, it is easy to keep the inside of the dust collection box 33 clean at all times.

  Moreover, in the other Example of the grain conveying apparatus 1 of FIG. 11, since the inclination part 61 is provided in the conveyance upper side of the horizontal part horizontal part 60, and the dust removal apparatus 30 is provided in the horizontal part 60 or the inclination part 61, it is. The degree of freedom of installation of the dust removing device 30 can be expanded and the space can be used effectively.

  DESCRIPTION OF SYMBOLS 1 ... Machine casing, 2 ... Bottom plate, 3 ... Side plate, 5 ... Supply part, 6 ... Input port, 7 ... Supply port, 8 ... Drop port, 10 ... Discharge part, 11 ... Conveyor, 12 ... Forward / reverse sprocket, 13 DESCRIPTION OF SYMBOLS ... Rotary shaft, 14 ... Drive motor, 16 ... Conveyance body, 17 ... Chain, 18 ... Both-sides link, 19 ... Pin, 20 ... Projection part, 21 ... Elastic scraping body, 30 ... Dust removal apparatus, 31 ... Opening part, 32 ... Dust remover, 33 ... Dust collection box, 35 ... Thin metal plate, 36 ... Through hole, 37 ... Handle part, 38 ... Insertion groove, 39 ... Guide rail, 40 ... Shutter, 45 ... Front and rear plates, 46 ... Left and right plates , 47 ... Case, 48 ... Receptacle, 49 ... Locking tool, 50 ... Inspection window, 51 ... Suction pipe, 52 ... Dust cyclone, 53 ... Dust box, 54 ... Suction machine, 58 ... Supply pipe, 59 ... Tank, 60 ... Horizontal part, 61 ... inclined part.

Claims (4)

By moving the transport body 16 of the transport conveyor 11 in the lateral direction, the supplied grain is pressed, and the grains pressed by the transport body 16 sequentially press the forward grain, so that the grains come into contact with each other and rub against each other. Using the contact phenomenon, the transport body 16 is transported forward while removing the adhering dust on the grain surface, and the transport body 16 transports the grain so that the grain moves in the upper layer and the dust becomes the lower layer during the transport. It conveys to the dust removing body 32 which has the through-hole 36 of the dust removing device 30 while giving vibration to the grain, and the grain is allowed to pass through the dust removing body 32 and the dust is dropped into the dust collecting box 33 from the through-hole 36. A method of removing dust from the transported grain that is removed by suction . At least a bottom plate 2 and side plates 3 on both the left and right sides of the bottom plate 2 are provided at a predetermined position above a machine casing 1A formed long in the conveying direction, and a supply unit 5 for dropping and supplying the grain from above is provided. A discharge unit 10 having a drop port 8 is provided in a machine casing 1A at a predetermined distance from the supply unit 5, and a carrier 16 that circulates and conveys grains between the supply unit 5 and the discharge unit 10 at a predetermined interval. A conveyor 11 having endless chains 17 arranged side by side is provided, and the machine casing 1A on the upper side in the transport direction of the discharge unit 10 is provided with a dust removing device 30 for removing dust in the transported object, The dust removing device 30 is connected to a dust removing body 32 having a through-hole 36 smaller than a grain to be attached to an opening 31 provided in the bottom plate 2 of the machine casing 1A , and a suction device 54 provided below the dust removing body 32. crossfeed grain conveying instrumentation constructed by the collection box 33 .   In Claim 2, the said conveyance body 16 is the transverse feed grain provided in predetermined intervals so that a predetermined amount might be conveyed so that the space K might be formed in the rear side of the preceding conveyance body 16. Conveying device.   In claim 2 or claim 3, the dust removing body 32 is formed by forming a plurality of through holes 36 in the left and right and front and rear directions in the thin metal plate 35, and the dust collection box 33 is formed at the bottom of the case 47 and the case 47. A laterally-feeding grain conveying apparatus comprising a receiving tray 48 which is detachably attached, wherein one end of the left and right plates 46 of the case 47 is connected to an end of a suction pipe 51 connected to a suction machine 54.

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