Granular material conveying device

Abstract

To provide a very practical granular material transport device which can exhibit unprecedented action effects.SOLUTION: A granular material transport device has: a suction part 1 which sucks a gas; a gas transporting pipe part 2 which is extended to the suction part 1, and transports granular materials 50 by the gas; and a separation part 3 which is provided on the gas transporting pipe part 2, introduces the gas containing the granular materials 50 therein, and separates the same into the gas and the granular materials 50. The gas separation part 3 is configured from a centrifugal separation vessel which is provided, at an upper site thereof, with a gas introduction part 3a for introducing the gas containing the granular materials 50 and a gas discharge part 3b for discharging the gas from which the granular materials 50 are centrifugally separated, and is provided, at a lower site thereof, with a granular material discharge port part 3c for discharging the centrifugally separated granular materials 50, and a lid body 4, which is blocked by suction of the suction part 1, is provided at the granular material discharge port part 3c.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a granular material transport device. [Background technology]

[0002] 2. Description of the Related Art Conventionally, as a device for conveying granular materials such as rice, for example, a granular material conveying device disclosed in Patent Document 1 (hereinafter, referred to as the "conventional example") has been proposed.

[0003] This conventional example is a bucket conveyor in which a large number of buckets are provided on the outer surface of a circulating belt that is suspended between a drive pulley and a driven pulley that are provided at upper and lower positions on the main body of the device, and as the circulating belt rotates, each bucket rises and falls, transporting granular material from a lower position to an upper position in the conveying space in which the conventional example is installed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-37435 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the conventional example, as mentioned above, the granular material can only be transported from a lower position to an upper position of the device body, which limits the places and uses where the device can be used.

[0006] The present invention is intended to solve the above-mentioned problems, and provides a very practical granular material transport device which exhibits effects not previously available. [Means for solving the problem]

[0007] The gist of the present invention will now be described with reference to the accompanying drawings.

[0008] A granular material conveying device having an intake section 1 for sucking in gas, a gas conveying pipe section 2 extended from the intake section 1 for conveying granular material 50 by gas, and a separation section 3 provided in the gas conveying pipe section 2 for introducing gas containing the granular material 50 and centrifuging the gas and the granular material 50, the separation section 3 being composed of a centrifuge vessel provided at an upper portion with a gas inlet section 3a for introducing gas containing the granular material 50 and a gas outlet section 3b for discharging gas obtained by centrifuging the granular material 50, and a granular material outlet section 3c for discharging the granular material 50 centrifuged at a lower portion, the granular material outlet section 3c being provided with a lid body 4 that is closed by the intake of the intake section 1, and the granular material 50 is arranged to be piled up in the separation section 3 when the lid body 4 is closed, and the lid body 4 is arranged to open by its own weight when the intake is stopped. Furthermore, the tip of the gas conveying pipe 2 is connected to a granular material storage section 7 that stores the granular material 50, and the granular material storage section 7 is provided so as to be movable up and down. The present invention relates to a granular material transport device.

[0009] The present invention also relates to a granular material conveying device, characterized in that in the granular material conveying device described in claim 1, a flexible pipe body is adopted as the gas conveying pipe section 2.

[0010] The present invention also relates to a granular material conveying device, characterized in that, in the granular material conveying device described in any one of claims 1 and 2, the intake section 1 or the gas conveying pipe section 2 is provided with an air passage blocking section 5 that blocks air passage.

[0011] Furthermore, in the granular material conveying device described in any one of claims 1 and 2, the intake section 1 has a gas suction section 1c connected to the gas conveying pipe section 2, and this gas suction section 1c is provided with an air passage blocking section 5 that blocks air passage.

[0012] In addition, in the granular material conveying device described in claim 4, the air-blocking section 5 relates to a granular material conveying device characterized in that it is configured by a freely movable blocking plate 5' having a blocking section 5b that blocks the gas suction section 1c so that it cannot be ventilated and an open hole section 5a that opens the gas suction section 1c to allow ventilation.

[0013] Furthermore, in the granular material conveying device described in any one of claims 1 to 5, the lid body 4 is pivotally attached so as to be freely opened and closed in the vertical direction via a hinge portion 11 provided in the vicinity of the granular material discharge outlet portion 3c. Effect of the Invention

[0014] Since the present invention is configured as described above, it is capable of transporting granular materials well, and is extremely convenient as it can be used anywhere and for any purpose, making it an unprecedentedly practical granular material transport device. [Brief description of the drawings]

[0015] [Figure 1] FIG. 2 is an explanatory diagram showing the embodiment in a state of use. [Diagram 2] FIG. 2 is an explanatory diagram of a main part of the present embodiment. [Diagram 3] FIG. 2 is an explanatory diagram of a main part of the present embodiment. [Figure 4] FIG. 2 is an explanatory diagram of a main part of the present embodiment. [Diagram 5] FIG. 2 is an explanatory diagram of a main part of the present embodiment. [Figure 6] FIG. 2 is an explanatory diagram of the operation of the main parts of the present embodiment. [Figure 7] FIG. 2 is an explanatory diagram of the operation of the main parts of the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] A preferred embodiment of the present invention will be briefly described below with reference to the drawings to illustrate the operation of the present invention.

[0017] When air is sucked in through the intake section 1, the air in the gas transport pipe section 2 and the separation section 3 moves to the intake section 1. At this time, negative pressure is created inside the separation section 3, and the granular material discharge port section 3c is closed by the lid body 4, which was in the open state, due to its own weight.

[0018] Because the separation section 3 is in a negative pressure state, for example, granular material 50 arranged at the tip of the gas transport pipe section 2 is sucked in and transported by gas, and the gas containing the granular material 50 is introduced into the separation section 3 from the gas inlet section 3a and centrifuged to separate the gas and the granular material 50. The gas is discharged from the gas outlet section 3b, and the granular material 50 falls and accumulates near the granular material outlet section 3c, which is closed by the lid body 4.

[0019] When the intake of air is stopped at any time, the lid 4 opens due to its own weight, and the accumulated granular material 50 is discharged from the granular material discharge portion 3c.

[0020] Therefore, the suction action can be utilized to effectively transport the granular material 50, and since the gas transport pipe 2 and the separation section 3 can be freely moved to any position, there are no limitations on the place or purpose of use, making it extremely convenient. EXAMPLES

[0021] A specific embodiment of the present invention will now be described with reference to the drawings.

[0022] This embodiment is a granular material conveying device having an intake section 1 that draws in gas, a gas conveying pipe section 2 extending from this intake section 1 and conveying granular material 50 by gas, and a separation section 3 provided in this gas conveying pipe section 2 that introduces gas containing granular material 50 and centrifugally separates the gas and the granular material 50.

[0023] Incidentally, this embodiment is applied to the conveyance of grains (broken rice) as the granular material 50, but is not limited to this and also includes fine grains (powdery material).

[0024] The granular material transport device according to this embodiment will be described in detail below.

[0025] The intake section 1 is an air pump consisting of a rotary drive section 1a (electric motor) provided within a case-shaped main body 1' as shown in Figures 1 and 2, and a blade section 1b provided on the drive shaft 1a' of the rotary drive section 1a. The blade section 1b is covered with a cover body 6, and this cover body 6 is provided with a gas suction section 1c and a gas discharge section (not shown) consisting of holes.

[0026] Therefore, when the blade portion 1b rotates, air is sucked into the cover body 6 through the gas suction portion 1c, and then the air sucked into the cover body 6 is discharged from the gas discharge portion. The rotation drive portion 1a is controlled to be turned on and off by the control portion at a predetermined timing in synchronization with the reciprocating linear drive portion 9 described later, and an overload caused by the forcible blocking of the intake air by the air flow cutoff portion 5 described later, that is, burning due to an overload caused when the operation of the rotation drive portion 1a is continued even after the intake air is forcibly cut off by the air flow cutoff portion 5, is prevented.

[0027] In addition, this gas suction section 1c is connected to the base end of the gas conveying pipe section 2 (first pipe section 2A) described later, and further, an air passage blocking section 5 is provided between this gas suction section 1c and the gas conveying pipe section 2 to block air passage to the gas suction section 1c.

[0028] This air-passage blocking section 5 is configured by a freely movable blocking plate 5' having a blocking section 5b that blocks the gas suction section 1c of the intake section 1 so that air cannot pass through, and an open hole section 5a that opens the gas suction section 1c to allow air to pass through, as shown in Figure 2.

[0029] Specifically, as shown in Figures 2 and 3, this blocking plate 5' is arranged inside the case-shaped main body 1' so as to be freely rotatable in the vertical direction, and the tip end is provided with the aforementioned blocking portion 5b and open hole portion 5a, and the base end is provided with a biasing body 8 (tension spring) that rotates and biases the blocking plate 5' so that the gas suction portion 1c is blocked by the blocking portion 5b, and a reciprocating linear drive unit 9 (solenoid) that operates at a predetermined timing and rotates the blocking plate 5' against the bias of the biasing body 8 so that the gas suction portion 1c is opened by the open hole portion 5a.

[0030] The reciprocating linear drive unit 9 is controlled by the control unit so as to be turned on and off approximately every 5 seconds, and the operation timing is set so that the gas suction unit 1c of the barrier plate 5' is in the non-ventilable state and the ventilable state for approximately 5 seconds each, and when the reciprocating linear drive unit 9 is turned off, the barrier plate 5' rotates due to the biasing force of the biasing body 8. The on / off timing controlled by the control unit can be changed as appropriate.

[0031] In this embodiment, the structure for forcibly blocking the intake of the intake section 1 allows the conveyance of the granular material 50 to be carried out extremely efficiently.

[0032] In other words, if there is no structure (air flow blocking section 5) forcibly cutting off the intake of the intake section 1, the driving source 1a (electric motor) of the intake section 1 will not stop immediately but will instead dampen and then stop (the intake will gradually weaken), resulting in a time lag before the lid body 4 is opened.However, in this embodiment, the intake is forcibly cut off regardless of the operation of the driving source 1a, so that the lid body 4 can be opened immediately at a predetermined timing and the granular material 50 can be discharged from the granular material discharge port 3c, and the transport operation of the granular material 50 can be carried out efficiently.

[0033] In this embodiment, the air-passage blocking section 5 is provided in the intake section 1, but it may also be provided in the gas transport pipe section 2 (first pipe section 2A), and any structure that can forcibly block air flow within the device and stop the intake of air by the intake section 1 may be used.

[0034] The gas conveying pipe section 2 is composed of a first pipe section 2A provided between the intake section 1 and the separation section 3 described later, and a second pipe section 2B provided between the separation section 3 and the granular material storage section 7 described later.

[0035] The first pipe portion 2A and the second pipe portion 2B are flexible pipes (bellows-shaped flexible pipes with alternating peaks and valleys) made of an appropriate synthetic resin material as shown in FIG.

[0036] Therefore, since the gas transport pipe section 2 is flexible, the intake section 1, the separation section 3 and the granular material storage section 7 can be disposed at any desired positions.

[0037] The separation section 3 is composed of a centrifuge container having, at its upper portion, a gas inlet portion 3a for introducing gas containing granular material 50 and a gas outlet portion 3b for discharging the granular material 50 and the centrifuged gas, and, at its lower portion, a granular material outlet portion 3c for discharging the gas and the centrifuged granular material 50.

[0038] Specifically, the separation section 3 is a vertically elongated cylindrical body made of an appropriate synthetic resin material as shown in Figures 1, 4, and 5, and is composed of a vertical upper cylindrical section 3A and a downwardly inclined lower cylindrical section 3B connected to this upper cylindrical section 3A via a bent section.

[0039] By forming the lower portion of this separation section 3 as the lower cylindrical section 3B described above, good discharge of the granular material 50 from the granular material discharge port section 3c can be achieved.

[0040] In other words, if the lower part of the separation section 3 were vertical, the range of motion (rotation angle) of the lid body 4 described below would have to be large in order to discharge the granular material 50 from the granular material discharge outlet 3c (to ensure sufficient space for the granular material 50 to fall), but a strong force (suction action) would be required to close this lid body 4.

[0041] Therefore, in this embodiment, by adopting the above-mentioned configuration, sufficient space can be secured for the granular material 50 to fall without increasing the range of motion of the lid body 4, so that the granular material 50 can be discharged well, and moreover, the lid body 4 can be closed reliably without requiring a strong force to be closed.

[0042] In addition, a gas inlet section 3a is provided at a lateral position of the upper part of the separation section 3 (the upper end of the upper tube section 3A), through which gas containing the granular material 50 transported by the gas transport pipe section 2 (second pipe section 2B) is introduced downward along the inner surface, and a gas outlet section 3b is provided at a central position of the upper part of the separation section 3 (the upper end of the upper tube section 3A), through which gas obtained by centrifugal separation of the granular material 50 is discharged.

[0043] In addition, a granular material discharge port 3c is provided at the lower part of the separation section 3 (the lower end of the lower tube section 3B) for discharging the granular material 50 separated by centrifugal separation from the gas, and further, a lid body 4 is provided at the granular material discharge port 3c for closing the granular material discharge port 3c.

[0044] This lid body 4 is formed from an appropriate synthetic resin plate material as shown in Figures 1 and 4, and is freely rotatable in the vertical direction via a hinge portion 11 provided on the upper outer peripheral surface of the lower tube portion 3B, and is configured to rotate downward under its own weight from a blocked state to open the granular material discharge outlet portion 3c.

[0045] Specifically, when the intake of air by the intake section 1 creates negative pressure inside the separation section 4, the suction action causes the open lid body 4 to rotate in the closing direction (upward), and while the intake of air by the intake section 1 continues, the closed state of the lid body 4 is maintained, and when the intake of air by the intake section 1 stops, the lid body 4 rotates in the opening direction (downward) due to its own weight.

[0046] Therefore, the gas containing the granular material 50 transported by the gas transport pipe section 2 (second pipe section 2B) and introduced from the gas introduction section 3a moves downward by a vortex flow along the inner surface of the separation section 3, and the granular material 50 is centrifuged. The gas into which the granular material 50 has been centrifuged moves upward through the center of the separation section 3 and is discharged from the gas discharge section 3b (transported to the intake section 1). Meanwhile, the granular material 50 centrifuged from the gas is deposited on the lid body 4. Thereafter, when the intake by the intake section 1 is stopped and the lid body 4 is opened by its own weight, the granular material 50 deposited on the lid body 4 is discharged from the granular material discharge port section 3c.

[0047] In this embodiment, a separation section support body 10 is provided for supporting the separation section 3 at a predetermined height position.

[0048] This separation section support body 10 is formed from an appropriate metal member as shown in Figure 1, and has a frame structure section 10a of a predetermined height, and a bottom-open storage structure section 10b at the top of this frame structure section 10a for storing the separation section 3, and is configured so that a FIBC bag 51 with its top opening open can be placed below this storage structure section 10b.

[0049] Therefore, the granular material 50 discharged from the granular material discharge port 3 c of the separation section 3 falls into the flexible container bag 51 .

[0050] In this embodiment, the tip of the gas transport pipe section 2 (second pipe section 2B) is connected to a granular material storage section 7 that stores granular material 50.

[0051] 1, the granular material storage section 7 is composed of a hopper body made of an appropriate metal member, and is provided with a cylindrical slide section 7a that slides on a guide section 12a of a granular material storage section support body 12 described later. The slide section 7a is provided with a stopper (not shown) that stops the slide section 7a at any position on the guide section 12a.

[0052] As shown in Figure 1, the granular material storage section support body 12 is composed of a plate-shaped grounding portion 12b and a support portion 12a erected in the center of the upper surface of the grounding portion 12b, and this support portion 12a is configured as a guide portion 12a that guides the slide portion 7a.

[0053] Therefore, the granular material storage section 7 moves up and down relative to the granular material storage section support body 12 and is supported at a predetermined height position.

[0054] Reference numeral 52 denotes a granular material supplying device (rice husk removing device) that supplies granular material 50 (broken rice) to the granular material storage section 7.

[0055] Since this embodiment is configured as described above, when air is sucked in through the intake section 1, the air in the gas transport pipe section 2 and the separation section 3 moves to the intake section 1. At this time, negative pressure is created inside the separation section 3, and the granular material discharge port section 3c is closed by the lid body 4, which was in the open state, due to its own weight.

[0056] Since the separation section 3 is in a negative pressure state, for example, granular material 50 arranged at the tip of the gas transport pipe section 2 is sucked in and transported by gas, and the gas containing the granular material 50 is introduced into the separation section 3 from the gas inlet section 3a and centrifuged to separate the gas and the granular material 50. The gas is discharged from the gas outlet section 3b, and the granular material 50 falls and accumulates near the granular material outlet section 3c blocked by the lid body 4 (on the inner surface of the lid body 4 and the area above it) (see Figure 6).

[0057] Subsequently, when the intake is stopped at any time, the lid 4 opens due to its own weight (and the weight of the accumulated granular material 50), and the accumulated granular material 50 is discharged from the granular material discharge section 3c (see FIG. 7).

[0058] Therefore, according to this embodiment, the suction action can be utilized to effectively transport the granular material 50, and furthermore, the gas transport pipe 2 and the separation section 3 can be freely moved to any position, so that the place of use and application are not limited, making it extremely convenient.

[0059] In addition, in this embodiment, a flexible tube is used as the gas transport pipe section 2, so that in this respect too, the gas transport pipe 2 and the separation section 3 can be freely moved to any position, which is extremely convenient.

[0060] In addition, in this embodiment, the intake section 1 or the gas transport pipe section 2 is provided with the airflow blocking section 5 for blocking airflow, so that the granular material 50 can be transported efficiently.

[0061] In addition, in this embodiment, the intake section 1 has a gas suction section 1c connected to the gas transport pipe section 2, and this gas suction section 1c is provided with an air passage blocking section 5 that blocks air passage. This air passage blocking section 5 is configured by a movable blocking plate 5' having a blocking section 5b that blocks the gas suction section 1c to prevent air passage and an open hole section 5a that opens the gas suction section 1c to allow air passage, so that it can reliably block air passage, and moreover, due to its simple structure, it is inexpensive and has excellent mass productivity.

[0062] In addition, in this embodiment, the lid body 4 is pivoted so as to be freely opened and closed in the vertical direction via the hinge portion 11 provided in the vicinity of the granular material discharge outlet portion 3c, so that the lid body 4 can be opened and closed reliably.

[0063] In addition, in this embodiment, the tip of the gas conveying pipe section 2 is connected to the granular material storage section 7 which stores the granular material 50, and the granular material storage section 7 is arranged so that it can be raised and lowered. Therefore, in this respect, it is extremely convenient as it is not limited in terms of the place or purpose of use.

[0064] It should be noted that the present invention is not limited to the embodiments, and the specific configuration of each component can be appropriately designed. [Explanation of symbols]

[0065] 1. Intake section 1c Gas suction section 2 Gas conveying pipe section 3 Separation part 3a Gas inlet 3b Gas exhaust section 3c Particulate matter discharge port 4 Lid 5. Ventilation Block 5' Blocking plate 5a Open hole 5b Occlusion 7 Granular material storage section 11 Hinge part 50 Particulate matter

Claims

1. a gas supply pipe extending from the gas supply pipe for supplying gas to the granular material; and a separation section provided in the gas supply pipe for introducing gas containing the granular material and centrifuging the gas and the granular material. The separation section is comprised of a centrifuge container having an upper portion provided with a gas inlet portion for introducing the gas containing the granular material and a gas outlet portion for discharging the gas obtained by centrifuging the granular material, and a lower portion provided with a granular material outlet portion for discharging the granular material that has been centrifuged. The granular material outlet portion is provided with a lid that is closed by the intake of air from the gas supply pipe, and when the lid is closed, the granular material is piled up in the separation section. The lid is configured to open under its own weight when the intake is stopped. The granular material transport device is further characterized in that the tip of the gas supply pipe is connected to a granular material storage section that stores the granular material, and the granular material storage section is configured to be able to be raised and lowered.

2. 2. The granular material conveying device according to claim 1, wherein the gas conveying pipe section is a flexible pipe.

3. 3. The granular material conveying device according to claim 1, wherein the intake section or the gas conveying pipe section is provided with an air passage blocking section for blocking air passage.

4. A granular material conveying device as described in any one of claims 1 and 2, characterized in that the intake section has a gas suction section connected to the gas conveying pipe section, and this gas suction section is provided with an air passage blocking section for blocking air passage.

5. 5. A granular material conveying device as described in claim 4, characterized in that the air passage blocking section is configured by a movable blocking plate having a blocking section that blocks the gas suction section so that it cannot be ventilated and an open hole section that opens the gas suction section so that it can be ventilated.

6. A granular material conveying device as described in any one of claims 1 to 5, characterized in that the lid body is pivotally attached so as to be freely opened and closed in the vertical direction via a hinge portion provided in the vicinity of the granular material discharge outlet portion.

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