JP2014076695A - Powder and granular material carrying vessel and powder and granular material fluidization method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a powder and granular material carrying vessel which enables consolidated powder and granular materials to fluidize again.SOLUTION: A powder and granular material carrying vessel 1, which transports powder and granular materials stowed in a hold divided into a plurality of compartments, comprises: vertical transfer means which vertically transfers the powder and granular materials taken out from the hold where an internal space thereof is divided by bulkheads; horizontal transfer means which is arranged in a center of a bottom section of the hold in a manner that penetrates the hold in a longitudinal direction of the powder and granular material carrying vessel, is connected to the vertical transfer means and horizontally transfers the powder and granular materials in the hold toward a lower end side of the vertical transfer means; inter-hold transfer means which is arranged on the bottom section of the hold with downward inclinations toward the center of the bottom section of the hold and transfers the powder and granular materials in the hold toward the horizontal transfer means; and blowing means which blows air or the powder and granular materials taken out from the hold to the powder and granular materials in the hold from above.

Description

  TECHNICAL FIELD The present invention relates to a granular material carrier ship that conveys cargo of inorganic granular materials such as cement, fly ash, calcium carbonate (tankal), slag, clinker, etc., and organic granular particles including cereals. .

  2. Description of the Related Art As a cargo carrier that carries a cargo of granular materials such as cement, fly ash, tankal, slag, clinker, and cereal, for example, a powder carrier disclosed in Patent Document 1 below is known. This powder transport ship has an inclined part with a cloth material as a ship bottom structure toward the powder introduction path in the center of the bottom of the hold, and when the powder is unloaded, A structure is provided in which fluidity of the fluid is secured by blowing out compressed air from the bottom and conveyed to the powder introduction path.

  The powder guided to the powder introduction path by the compressed air is transported in the front-rear direction of the hull by the transport conveyor provided in the powder introduction path, and is unloaded after being transported to the pressurized transporter by the vertical transport means. The

JP 2002-356194 A

  Even when there is a predetermined amount or more of particles in the hold, the particles near the air slider can be suitably fluidized. However, when consolidation at a location away from the air slider progresses, only the fluidized portion of the granular material may be discharged out of the hold, and the consolidated portion may form a bridge. When the bridge is formed, several air holes are formed in the compacted powder and the air path may be fixed. In this case, the granular material is not suitably fluidized, and further consolidation may occur.

  The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a granular material transport ship capable of fluidizing a compacted granular material again.

  A granular material carrier according to one aspect of the present invention is a granular material carrier ship that loads and conveys granular materials in a plurality of compartments, and is carried out of a cargo compartment that is partitioned by a partition wall. A vertical transfer means for transferring the granular material in the vertical direction, and a granular material in the hold, which is arranged in the center of the bottom of the hold so as to penetrate in the longitudinal direction of the hull of the powder carrier and is connected to the vertical transfer means. The horizontal transfer means for horizontally transferring the particles toward the lower end side of the vertical transfer means and the bottom of the hold are arranged so as to incline toward the center of the bottom, and the particles in the hold are transferred toward the horizontal transfer means. And a spraying means for spraying air or powder particles transported from the hold onto the powder particles in the hold from above. In the granular material carrier, it is possible to spray the granular material that has been transported from the air or from the hold to the compacted granular material, and loosen and fluidize the granular material again by impact. Furthermore, when spraying the granular material carried out to the powder fluid in the hold, the fluidized powder is circulated through the above-mentioned transfer means in the hold, horizontal transfer means, vertical transfer means, and spraying means. It is possible to prevent the compaction.

  In addition, the spraying means is connected to the vertical transfer means, and a pressure type transporting machine that blows out powder particles transferred from the vertical transfer means, and a powder that is connected to the pressure type transporting machine and blown out from the pressure type transporting machine. A first granular material transport path for transporting the granular material to the outside, and a second granular material that is connected to the pressurized transporter and transports the granular material blown from the pressurized transporter into the hold. You may provide the conveyance path | route and the granular material conveyance path | route selection means which selectively connects these 1st and 2nd granular material conveyance paths with a pressurization type transporter. In this case, the spraying means can spray the granular material blown from the pressurized transporter onto the granular material in the hold through the second granular material transfer path. When the above-mentioned granular material carrier is configured in this way, it is possible to spray the granular material carried out from the air or the cargo space to the granular material in the cargo space using the pressure of the pressurized transporter used for unloading work. Thus, it is possible to suitably fluidize the granular material without adding other components such as a dedicated pump.

  Moreover, the said 2nd granular material transfer path | route can also be connected with the ceiling part of a hold. When the second granular material transport path is provided in the ceiling of the hold, supply the air or the granular material carried out from the hold to all holds while maintaining the momentum supplied by the pressurized transporter. Is possible. Furthermore, when the air slider is provided at the bottom of the hold, it is expected that the powder particles are circulated suitably by the spraying.

  Further, it is considered that the particle carrier ship further includes detection means for detecting whether or not the powder is compacted and a control device for controlling the spraying means in accordance with the state of the detection means. It is done. In this case, it is conceivable that the control device sprays the granular material carried out of the air or the cargo hold onto the granular material until the granular material is fluidized. According to such a configuration, since the spraying can be automatically started in accordance with the output of the detection means, and further, the spraying can be terminated at the same time as the powder in the hold is fluidized. And speeding up is expected.

  The method of fluidizing a granular material according to one aspect of the present invention is a granular material carrier ship that loads and conveys a granular material in a cargo compartment partitioned into a plurality of compartments. The vertical transfer means for transferring the discharged granular material in the vertical direction, and the powder in the hold is connected to the vertical transfer means and arranged to penetrate in the longitudinal direction of the hull of the granular material carrier ship at the center of the bottom of the hold. Horizontal transfer means for transferring the particles in the horizontal direction toward the lower end side of the vertical transfer means, and arranged so as to incline toward the center of the bottom at the bottom of the hold, with the particles in the hold facing the horizontal transfer means A granular material fluidizing method for a granular material transport ship equipped with a means for transporting the cargo in the cargo space, the method comprising spraying air or granular material transported from the cargo space from above into the granular material in the cargo space Features.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide the granular material carrier ship which can fluidize the compacted granular material again.

It is a block diagram which shows the structure of the granular material carrier ship which concerns on the 1st Embodiment of this invention. It is the schematic which shows a mode when a granular material is consolidated. It is side sectional drawing which shows the structure of the granular material carrier ship which concerns on the 1st Embodiment of this invention. It is an upper top view which shows the structure of the same granular material carrier ship. It is width direction sectional drawing which shows the structure of the same granular material carrier ship. It is a width direction expanded sectional view which shows the structure of the same granular material carrier ship. It is an upward expanded plan view which shows the structure of the same granular material carrier ship. It is a flowchart explaining the unloading operation | movement of the same granular material carrier ship. It is a flowchart explaining the spraying operation | work of the same granular material carrier ship.

  Hereinafter, a granular material carrier according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[First Embodiment]
[1. Overview]
FIG. 1 is a functional block diagram showing the configuration of the granular material carrier 1 according to the first embodiment of the present invention. In the granular material carrier 1 according to the present embodiment, the loading means 150 is made of, for example, an inorganic material granular material such as cement, fly ash, calcium carbonate (tankal), slag, clinker, or an organic material containing grains. A cargo such as a granular material (hereinafter simply referred to as a granular material) is loaded from the outside and stored in a hold 2 that is a hold of the granular material transport ship 1. The air slider 141 supplies air to the powder particles in the hold 2 to fluidize the powder particles. The unloading means 100 transfers the granular material in the hold 2 to the outside of the hold 2. The pressurization type transporting machine 501 accelerates and transfers the granular material transferred from the unloading means 100 to the granular material transfer path selecting means 502. The granular material transfer path selection unit 502 selectively transfers the granular material transferred from the air or the unloading unit 100 to the first granular material transfer path 503 or the second granular material transfer path 504. The first granular material transfer path 503 discharges the transferred granular material out of the ship. The second granular material transfer path 504 blows air or the transferred granular material into the hold 2. Note that the pressurized transport machine 501, the granular material transfer path selection unit 502, the first granular material transfer path 503, and the second granular material transfer path 504 constitute a spraying unit 500. Moreover, the detection apparatus 601 detects whether or not the granular material in the hold 2 is consolidated, and outputs a flow state signal as a detection result. The control device 602 controls the air slider 141, the unloading means 100, the pressurized transporter 501, the granular material transfer route selection means 502, etc. according to the flow state signal and the unloading command and the blowing command output from the input device 603. Control. For example, a cellar pump can be used as the pressurized transport machine 501.

  Even when there are more than a predetermined amount of particles in the hold 2, some of the particles near the air slider 141 can be suitably fluidized. However, as shown in FIG. 2, the powder particles loaded relatively downward in the hold 2 are compressed by the weight of the powder particles loaded upward, resulting in a high density state. When such compaction of the granular material proceeds, only the fluidized part of the granular material is discharged out of the hold 2, and the consolidated part may form a bridge. When the bridge is formed, several air holes h are formed in the compacted granular material, and the air path may be fixed. In this case, the granular material is not suitably fluidized, and further consolidation may occur. However, in the granular material transport ship having the above-described configuration, it is possible to spray the granular material carried out from the air or the hold to the compacted granular material and fluidize the granular material again by impact. . Furthermore, when spraying the granular material carried out to the powder fluid in the hold, the fluidized powder is circulated through the above-mentioned transfer means in the hold, horizontal transfer means, vertical transfer means, and spraying means. It is possible to prevent the compaction.

  The control device 602 may be configured by a computer or the like. For example, when an unloading command is input by the input device 603, it is possible to drive the air slider 141, the unloading means 100, etc., and further control the granular material transfer path selection means 502 according to the output of the detection device 601. It is done. For example, when the granular material in the hold 2 is fluidized, that is, when it is not consolidated, the first granular material transfer path 503 is used, and when the granular material in the hold 2 is consolidated. It is conceivable to control the granular material transfer route selection means 502 so as to select the second granular material transfer route 504. Thereby, it is possible to start spraying automatically in accordance with the output of the detection device 601 and to finish the spraying simultaneously with the fluidization of the powder in the hold 2, so that the unloading operation can be automated and speeded up. There is expected.

  Moreover, even when the unloading command is not input by the input device 603, it is also conceivable that, for example, the powder particles are sprayed in advance during transportation of the particles to speed up the loading operation. In this case, a spray command is output from the input device 603, the air slider 141, the unloading means 100, etc. are driven in response to this, and the second granular material transfer path 504 is set regardless of the output of the detection device 601. It is conceivable to control the granular material transfer path selection means 502 to select. Furthermore, even when an unloading instruction is input and it is determined from the detection device 601 that the granular material in the hold 2 is fluidized, the blowing instruction is manually input. Therefore, it is possible to switch the powder path to the second powder path so that spraying can be performed.

  The configuration of the control device 602 is merely an example. Therefore, it is of course possible to configure the granular material transfer path selecting means 502 and the unloading means 100 so that they can be controlled independently and independently according to the situation, and the first granular material transfer regardless of the output of the detection device 601. It is also possible to configure the means 503 to be in the selected state. Furthermore, in the spraying operation, when spraying the granular material transported from the hold onto the powdered fluid in the hold, the spraying is performed from the viewpoint of securing the flow rate necessary for the spraying operation and controlling the attitude of the granular material transport ship 1 on the water. It is also conceivable that the work is not performed for all the holds 2 at the same time but only for one or two or more holds 2. On the other hand, when air is blown to the fluid in the hold in the blowing work, it is conceivable to perform the blowing work for all the holds 2 at the same time. An example of a specific operation method of the control device 602 will be described later.

  As the detection device 601, various modes can be assumed. For example, a pressure sensor or an optical sensor may be applied, and it is conceivable to install a camera in the hold 2 or to measure the flow rate of the granular material discharged from the hold 2. As the input device 603, various configurations such as a keyboard, a mouse, and a touch panel are applicable.

[2. overall structure]
Next, with reference to FIGS. 3-7, the more detailed structural example of the granular material carrier ship 1 which concerns on the 1st Embodiment of this invention is demonstrated. FIG. 3 is a side sectional view showing the structure of the granular material carrier 1 according to the present embodiment. FIG. 4 is an upper plan view showing the structure of the granular material carrier 1. FIG. 5 is a cross-sectional view in the width direction of the granular material carrier 1, and FIG. 6 is an enlarged cross-sectional view thereof. FIG. 7 is an enlarged schematic view of FIG. A granular material carrier 1 according to the present embodiment includes a ballast tank 4 disposed on a hull bottom plate 3 constituting a bottom of a ship, and a bottom plate 4a of a hold 2 that is an upper plate of the ballast tank 4, and includes a bow. Between the part 6 and the stern part 7, for example, eight holds 2 are provided which are divided by four in the hull longitudinal direction and two in the hull width direction. These holds 2 are partitioned by a partition wall 2b in the front-rear direction and the width direction of the hull.

[3. Unloading means]
As shown in FIGS. 3 to 5, the unloading means 100 includes a bucket elevator 110 that is a vertical transfer means for transferring a cargo such as a granular material in the vertical direction. The unloading means 100 is disposed at the bottom center 2c of the hold 2 so as to penetrate in the front-rear direction of the hull of the granular material transport ship, and is connected to the bucket elevator 110 so that the cargo such as the granular material is transferred to the lower end of the bucket elevator 110. The flow conveyor 120 of the horizontal transfer means which transfers to a horizontal direction toward the side is provided.

  Furthermore, the unloading means 100 includes an in-carrying transfer means 140 that is disposed on the bottom 2a of the hold 2 so as to incline toward the center 2c of the bottom, and transfers the granular material in the hold 2 toward the flow conveyor 120. A plurality of the in-hull transfer means 140 are provided at predetermined intervals along the flow conveyor 120 on both sides of the flow conveyor 120 at the bottom of the hold and are accumulated by extending in the width direction of the hull at a certain inclination angle from the dredging wall. An air slider 141 that is a transfer-off means for transferring the body to the flow conveyor 120, and a mountain-shaped inclined portion 142 provided along the air slider 141 on both sides of the air slider 141. The connecting portions of the flow conveyor 120 and the air slider 141 are provided with extraction gates 130 as closing means that can close the connecting portions. As shown in FIG. 3, the air slider 141 is provided above the air slider mounting bottom plate 5 provided on the bottom plate 4 a of the hold 2. The air slider mounting bottom plate 5 is installed on the entire surface of the bottom portion 2a of the hold 2 in a watertight structure so that there is no leakage of powder particles from the inside of the hold 2 or intrusion of seawater from the bottom plate 4a side. The extraction gate 130 is configured by a knife gate valve, a butterfly valve, or the like having an electric or pneumatic cylinder.

[4. Spraying means]
In the vicinity of the bucket elevator 110, a plurality of the pressurized transport aircraft 501 are arranged, for example, in the width direction of the hull. The granular material transferred from the bucket elevator 110 is transferred to the pressurized transport machine 501 via the feed pipe 161 connecting the pressurized transport machine 501 and the upper end side of the bucket elevator 110. The pressurization type transport machine 501 accelerates the granular material transported from the air or the bucket elevator 110, and feeds the powder body in the pressurization type transport machine 501 to a feed pipe 511 and a transport pipe (unloading pipe) 512. transport.

  As shown in FIG. 7, the transport pipe 512 is selectively connected to the first granular material transfer path 503 or the second granular material transfer path 504 via the granular material transfer path selection means 502. The granular material transfer path selection means 502 includes, for example, a first butterfly valve 521 provided between the transport pipe 512 and the first granular material transfer path 503, the transport pipe 512, and the second granular material. It can be considered that the second butterfly valve 522 provided between the transfer path 504 and the transfer path 504 is configured. The first granular material transfer path 503 is a transfer pipe made of a flexible material, and is connected to the outside of the granular material transport ship 1.

  The second granular material transfer path 504 is connected to each hold 2 and selectively supplies air or granular material to each hold 2. Since the second granular material transport path 504 is connected to the pressurized transport machine 501 via the transport pipe 512, air or granular material is brought into the hold 2 using the pressure of the pressurized transport machine 501. It is possible to spray, and it is possible to suitably fluidize the granular material without adding another configuration such as a dedicated pump.

  In the present embodiment, the second granular material transport path 504 is connected to the ceiling portion of the hold 2. Therefore, it is possible to supply the air or the granular material to all the holds while maintaining the momentum supplied by the pressurized transport machine 501. Further, since the air slider 141 is provided at the bottom of the hold 2, it is possible to spray the granular material carried out from the bottom of the hold 2 from the ceiling of the hold 2. Therefore, it is considered possible to circulate most of the granular materials in the hold 2. Furthermore, in this embodiment, the connection part of the 2nd granular material transfer path and the hold 2, and the connection part of the loading means 150 and the hold 2 are both located in the center of the hold 2 ceiling part. . Therefore, even when the granular material loses fluidity at the loading stage and is piled up in the hold 2, air or granular material is sprayed on the top of the mountain, and the compressed granular material It is possible to effectively fluidize the body.

  The second granular material transfer path 504 holds the temporary pipe 541 connected to the transfer pipe 512 via the granular material transfer path selection means 502 and the air or the granular material supplied from the temporary pipe 541 for each hold 2. , And a seizure prevention valve 543 and a seizure prevention nozzle 544 for selectively connecting each hold 2 and the seizure prevention pipe 542 to each other. In addition, it is possible to control the said presence prevention valve 543 according to the output of the detection apparatus 601 with which each hold 2 was equipped.

[5. Loading means]
The loading means 150 of the granular material carrier 1 includes, for example, a central distribution tank 152 connected to a receiving air slide (not shown) that receives the cargo (load) loaded in the hold 2 from the land to the granular material carrier 1, A distribution air slide 153 connected to the distribution tank 152, a hold loading portion 154 branched from the distribution air slide 153, and the like are provided. In the present embodiment, the central distribution tank 152 and the distribution air slide 153 operate as a central distribution device that distributes the granular material for each hold. Further, the hold loading sections 154 operate as a cargo loading section, and the same number as the hold 2 is provided. That is, the granular material carrier 1 according to the present embodiment can deposit the granular material flat regardless of the number of cargo loading parts, thereby simplifying the configuration of the loading means and reducing the manufacturing cost. doing.

  The central distribution tank 152 is disposed substantially at the center in the front-rear direction of the hull. Four distribution air slides 153 are provided so as to extend from the central distribution tank 152 in the direction of the bow portion 6 and the stern portion 7 and to be inclined downward in these directions from the central distribution tank 152 side. The hold loading part 154 provided at the upper part of the center distribution tank 152 and the central distribution tank 152 are connected.

  A hold loading portion 154 connected to the distribution air slide 153 is provided for each hold 2, and by opening the gate 155 provided between the hold loading portion 154 and the distribution air slide 153, A granular material such as cement falls into the hold 2 immediately below the hold loading portion 154 and is loaded. At this time, the granular material falls into the hold 2 in a fluidized state. As will be described later, aeration is performed in the hold 2 during loading. Accordingly, the powder particles are laminated flat in the hold 2 and the dead space in the hold 2 is reduced.

  Although detailed description of the structure of the central distribution tank 152, the distribution air slide 153, etc. will be omitted, the air slide is provided with, for example, an inclined canvas in a duct, and air is supplied from below the canvas to form powder particles. It moves while fluidizing the body.

  In addition, the structure of the said loading means 100 is only an example to the last. For example, a method of accepting a central distribution tank by a pressure-feeding pipe arranged on the ground by a pressure-feeding pipe may be adopted, or a pressure-feeding pipe connected to a pressure-type transportation machine arranged on the ground is connected to each hold. However, a method of directly loading (pumping method) may be adopted.

[6. Example of control device operation]
Next, an example of a specific operation method of the control device 602 will be described with reference to FIGS.

  FIG. 8 is a flowchart showing the operation of the control device 602 in the unloading operation. When the unloading command is input to the control device 602, the control device 602 outputs a signal for starting the air slider 141, the unloading means 100, and the pressurized transporter 501 (step S11). Next, according to the output of the detection means 601, it is determined whether the powder in the hold 2 is fluidized and whether a spray command is input from the input device 603 (steps S12 and S13). If the powder is fluidized and no spray command is input, the first powder transfer path 503 is selected (step S14), and the powder in the hold 2 is removed from the ship. To discharge. On the other hand, when the powder is not fluidized or a spraying command is input, the second powder transfer path 504 is selected (step S15), and the powder discharged once from the hold 2 Blow your body again into Hold 2. The above operation is repeated until an instruction to end the unloading operation is given (step S16). When there is an instruction to end the unloading operation, the control device 602 outputs a stop command to the air slider 141, the unloading means 100, and the pressurized transporter 501 (step S17), and the first granular material transfer path 503 and the second Is closed (step S18), and the unloading operation is completed. The above flow is only an example of the operation method. Therefore, for example, when the unloading operation is started, the first granular material transfer path can be forcibly selected to discharge the granular material.

  FIG. 9 is a flowchart when the unloading operation is not performed, for example, when the blowing operation is performed during the voyage. When a spray command is input to the control device 602, the control device 602 outputs a signal for starting the air slider 141, the unloading means 100, and the pressurized transporter 501 (step S21). Next, the second granular material transport route is selected (step S22), and the spraying operation is performed. The above operation is repeated until an instruction to end the spraying operation is given (step S23). When there is an instruction to end the spraying operation, the control device 602 outputs a stop command to the air slider 141, the unloading means 100, and the pressurized transporter 501 (step S24), and closes the second granular material transfer path 504 ( Step S25), the spraying operation is finished. The above flow is only an example of the operation method.

[Second Embodiment]
Next, the granular material carrier 1 which concerns on the 2nd Embodiment of this invention is demonstrated. The granular material carrier 1 according to the present embodiment is basically the same as the granular material carrier 1 according to the first embodiment, but a connection portion between the flow conveyor 120 and the air slider 141 as the extraction gate 130. A water-tight means capable of closing the water-tight state is provided.

  In the granular material carrier 1 according to the present embodiment, as will be described later, the hold 2 is divided into a plurality of sections and is independently closed in a watertight state by watertight means. Therefore, for example, when a part of the hold 2 is submerged, during the unloading operation or the spraying operation, the unloading operation or the spraying operation is performed on the dry granular material in the hold 2 first. It is conceivable to keep the watertight means closed.

  In the present embodiment, the mountain-shaped inclined portion 142 is provided with an air slider on almost the entire inclined surface on both sides of the air slider 141 as a wiping means for transferring the accumulated granular material to the air slider 141. It has been. Therefore, it becomes possible to pay out the powder particles in the hold 2 appropriately.

[7. Other Embodiments]
Instead of the bucket elevator 110, vertical transfer means such as a vertical screw conveyor can be adopted, and a chain conveyor, a horizontal screw conveyor, or the like can be adopted as the flow conveyor 120. In the second embodiment, when unloading, the watertight extraction gate 130 is operated as a flow rate adjusting valve for adjusting the flow rate of the granular material to the flow conveyor 120 according to the opening degree, or the air slider 141. It is also possible to adjust the flow rate by controlling the aeration.

  Moreover, according to the granular material carrier 1 according to the second embodiment, the structure of the watertight extraction gate 130 is configured by existing watertight means such as a knife gate valve, and the opening shape of the gate is rectangular or circular. Therefore, a dead space for the connection between the flow conveyor 120 and the air slider 141 is not necessary, and the unloading means improves the damage stability with a simpler structure. 100 can be realized.

  Further, during the loading operation, the air slider 141 of the unloading means 100 in the first embodiment or the air slider 141 of the unloading means 100 in the second embodiment or the air slider provided on the mountain-shaped inclined portion 142 is used. Alternatively, the granular material carrier 1 may be configured to perform aeration during the transportation of the granular material or during the unloading operation.

  DESCRIPTION OF SYMBOLS 1 ... Granule carrier ship, 2 ... Hold (hold), 2a ... Bottom part, 2b ... Bulkhead, 3 ... Hull bottom plate, 4 ... Ballast tank, 4a ... Bottom plate, 5 ... Air slider mounting bottom plate, 6 ... Bow part, 7 DESCRIPTION OF SYMBOLS ... Stern part, 100 ... Unloading means, 110 ... Bucket elevator, 120 ... Flow conveyor, 140 ... Transfer means in cargo hold, 141 ... Air slider, 142 ... Inclined part of mountain shape, 150 ... Loading means, 500 ... Spraying means, 501 ... Pressure-type transporting machine, 502 ... Powder particle transfer route selection means, 503 ... First powder particle transfer route, 504 ... Second powder particle transfer route, 541 ... Temporary tube, 542 ... Prevention tube 543 ... Prevention valve, 544 ... Prevention nozzle 601 ... Detection device, 602 ... Control device, 603 ... Input device.

Claims (5)

It is a granular material carrier ship that loads and conveys particles in a cargo compartment divided into a plurality of compartments,
Vertical transfer means for vertically transferring powder particles carried from the inside of the hold, the interior of which is partitioned by a partition;
It is arranged at the center of the bottom of the hold so as to penetrate in the longitudinal direction of the hull of the powder carrier, and is connected to the vertical transfer means, and the particles in the hold are directed to the lower end side of the vertical transfer means. Horizontal transfer means for transferring in the horizontal direction;
A transfer means in the hold, which is disposed at the bottom of the hold so as to incline toward the center of the bottom, and transfers the granular material in the hold toward the horizontal transfer means;
A granular material carrier comprising: spraying means for spraying air or granular material transported from the cargo from above into the granular material in the cargo hold. The spraying means is
A pressurized transporter that is connected to the vertical transfer means and blows out the granular material transferred from the vertical transfer means;
A first particulate transport path that is connected to the pressurized transporter and transports the particulates blown from the pressurized transporter to the outside;
A second particulate transport path that is connected to the pressurized transporter and transports the particulates blown from the pressurized transporter into the hold;
A granular material transfer path selecting means for selectively connecting the first and second granular material transfer paths to the pressurized transporter;
The granular material carrier ship according to claim 1, wherein the granular material blown out from the pressurizing transporter is sprayed onto the granular material in the hold through the second granular material transfer path.   The granular material carrier according to claim 1 or 2, wherein the second granular material transport path is connected to a ceiling portion of the hold. Detecting means for detecting whether or not the granular material is consolidated;
A control device for controlling the spraying means according to the state of the detection means,
The said control apparatus sprays the granular material conveyed from the air or the said hold to the said granular material until the said granular material fluidizes. Any one of Claims 1-3 characterized by the above-mentioned. Granular material carrier.   Vertical transport for transporting powder particles in a vertical direction in which the powder particles are transported by loading them into a cargo compartment divided into a plurality of compartments and transported in the vertical direction by the bulkhead And a lower end side of the vertical transfer means that are arranged in the center of the bottom of the hold so as to penetrate in the longitudinal direction of the hull of the powder carrier and are connected to the vertical transfer means. A horizontal transfer means for transferring in the horizontal direction toward the bottom of the hold, and disposed in the bottom of the hold so as to incline toward the center of the bottom, and in the hold for transferring the granular material in the hold toward the horizontal transfer means A granular material fluidizing method for a granular material transport ship provided with a transfer means, and a closing means that is provided at a connection portion of the horizontal transfer means and the transfer means in the hold and can close the connection portion, Whether the granule in the hold is air or the hold Granule carrier of particulate material fluidization wherein the blowing out been powdery grains from the top.

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