JPH0418958Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the bottom structure of a ship that carries fine powder such as powdered cement.

[Conventional technology]

On ships transporting fine powder such as cement,
As shown in FIG. 9, powdered cement 10 is loaded directly into the hold 11, and when unloaded, it is poured into a chain conveyor 12 installed in the center, and then transported to the outside by a bucket conveyor (not shown). It was becoming.

On the other hand, the bottom part 13 of the ship is approximately flat as shown in the figure, and the cement 10 will not flow into the chain conveyor 12 in the center as it is. A bottom structure has been proposed.

An example of the bottom structure of a conventional cement ship is shown in FIGS. 6 and 7, in which a slightly inclined slide body 14 (usually with an inclination angle of 8 degrees or more) is arranged in the center, and a steel plate is placed on the side of the slide body 14. Inclined plates 15 and 16 are arranged, and the cement 10 placed on the upper part is
5 and 16 to the slide body 14, and then to the chain conveyor 12.

The slide body 14 is composed of a box body 17 whose upper part is open and a cloth part 18 at the upper part.
Compressed air is introduced into the chamber 7 and discharged from the upper cloth body 18 to lift the cement and move it to the lower part.

In addition, FIG. 8 shows the bottom structure of another conventional example, and as shown in the figure, slide bodies 19, 20, 2
1 and 22 are arranged at a slight incline from the end of the ship toward the center, and an auxiliary slide 2 is installed at the end of the slide.
3 and 24, air is sent from the bottom and discharged from the cloth body on the surface to lift the cement and convey it in the direction of the chain conveyor 12.

[Problem that the invention attempts to solve]

However, in the conventional example shown in FIGS. 6 and 7 above, since the sloped portions 15 and 16 are made of steel plates, it is necessary to set the slopes at 60 degrees or more in relation to the angle of repose of cement. Therefore, there were problems in that a space was formed under the inclined parts 15 and 16, resulting in a reduction in the effective hold volume, and furthermore, the steel plate was required to be thick, resulting in an increase in weight. .

Furthermore, since the volume reduced by the slopes 15 and 16 needs to be minimized, their widths are shortened and therefore the air-driven damper disposed at the end of the slide body 14 is There was a problem in that the spacing became shorter and more dampers were required.

On the other hand, in the conventional example shown in FIG. 8, since the loaded cement moves laterally, partition plates 24a are required between adjacent slides as shown in FIG. ,21,22
Since the auxiliary slides 23 and 24 are arranged at the terminal ends of the slide bodies 19 to 22, it is necessary to connect the air pipes 25a, 26a, 27a, and 28a to the slide bodies 19 to 22 from the top. 25a-2
There was a problem in that cement adhered to 8a, which required cleaning at an appropriate time.

In addition, auxiliary slides 23 and 24 are required in addition to the slide bodies 19 to 22, which complicates the structure. This posed the problem of reducing the effective volume of the hold.

The present invention was developed in view of the above circumstances, and an object of the present invention is to provide a bottom structure for a ship carrying fine powder that does not reduce the effective volume of the hold, is light in weight, and is easy to install.

[Means for solving problems]

The bottom structure of the fine powder loading ship according to the present invention in accordance with the above object includes a conveyor placed in the center of the ship bottom, a plurality of central slide bodies arranged side by side on both sides of the conveyor, and both sides of the central slide body. A ship bottom structure for a fine powder loading ship having a side slide body connected to the center slide body and side slide bodies on both sides each consisting of a large box body with a low height. An air intake port is provided at the top or the bottom, and the upper part is an opening and is covered with a cloth body, and the central slide body has a sufficient width to gradually introduce the fine particles to the conveyor. The central slide body is arranged at a slight incline for pouring, and each of the central slide bodies has a gate portion at its central end, and each of the side slide bodies connected to the central slide body is similar to the central slide body. It has a sufficient width, and furthermore, the side slides are arranged at a slight incline so as to gradually flow the fine powder into the center slide.

Here, the fine powder usually refers to cement powder, but is not limited thereto.

[Effect]

The bottom structure of the fine powder loading ship according to the present invention consists of a central slide body for flowing the powder onto a central conveyor, and side slide bodies connected to the central slide part. Each slide body consists of a box with the upper part open and a cloth body covered.
Since there is compressed air inside, the air is blown out from the upper cloth body and the fine powder at the top is blown up and becomes fluid, and the loaded fine powder is moved from the side slide body arranged at a slight angle It is moved to the central slide body and guided to the transport conveyor in the center of the ship via a gate provided at the end of the central slide body.

In this case, since no auxiliary slide body or the like is provided at the terminal end of each slide body, air piping can be provided from the terminal end of the slide body.

〔Example〕

Next, an embodiment embodying the present invention will be described with reference to the attached drawings to provide an understanding of the present invention.

Here, FIG. 1 is a perspective view showing the bottom structure of a fine powder loading ship according to an embodiment of the present invention, FIG. 2 is a side sectional view showing the bottom structure of the fine powder loading ship according to the above embodiment, and FIG. FIG. 3 is a plan view of the slide body constituting the above embodiment, FIG. 4 is a sectional view taken along the line B--B in FIG. 3, and FIG. 5 is a perspective view showing the assembled state of the slide body.

FIG. 1 shows a part of the bottom structure of a fine powder loading ship according to an embodiment of the present invention. As shown in the figure, side slide bodies 27 and 28 are assembled on both sides of a central slide body 26 A slide body is disposed by the center slide body 26, and a gate portion 29a that is opened and closed by a cylinder (not shown) is disposed at the terminal end of the central slide body 26. The center slide body 26 has an inclination of about 8 degrees from the side toward the center, one end of the side slides 27 and 28 is arranged parallel to the center slide 26, and the other end is parallel to the center slide 26. As shown in FIG. 4, a slope is provided with an inclination of about 8 degrees.

The central slide body 26 and the side slide bodies 2
7 and 28 are box-shaped as shown in FIGS. 3 and 4, and have a canvas 29, which is an example of a cloth body, on the top.
30 and 31. This installation will be explained with reference to Figure 5 for the center slide body 26 (the same applies to the side slide bodies 27 and 28).A canvas 29 cut to a predetermined size is placed on the top of the lower box body 32. The frame cover 33 is fitted onto the frame cover 33 and the side surfaces are screwed to attach the frame cover 33.

The box body 32 has a rectangular cross section as shown in FIG. The cement powder is gradually starting to slide off.

In addition, as shown in FIGS. 3 and 4, the box body 32 of the center slide body 26 and the side slide bodies 27, 2
At the upper end of the box bodies 34 and 35 of 8, there is a canvas 29,
30, 31 and reinforcing aggregates 36, 37, 38 to support the weight of the cement powder placed thereon.
is installed. Note that 39 and 40 indicate frame lids of the side slide bodies 27 and 28, respectively.

An air intake port 42 is provided at the bottom end of the box body 32, and air intake ports 43, 44 are provided at the ends of the box bodies 34, 35, respectively, and predetermined piping is provided. Inside the body 26 and the side slide bodies 27 and 28, lightweight aerated concrete 4, which is an example of a lightweight filler whose height is lower than the height of the box body, is provided.
5, 46, and 47 are arranged. The reason why the lightweight aerated concrete 45, 46, 47 is filled in this way is to reduce the amount of air introduced, and the spaces provided above are for the air intake ports 42, 43, 47, respectively. The air entering from 44 flows smoothly and evenly to the upper canvas 29, 30, 31.
This is to make it come out. In addition, this lightweight aerated concrete has air intake ports 42, 43,
Furthermore, the above-mentioned lightweight aerated concrete 45, 46, and 47 can be freely installed, and foamed plastic may be used as a lightweight filler in some cases. It is possible.

The above-mentioned central slide body 26, side slide body 2
The widths of 7 and 28 are set according to the installation width of the reinforcing ribs 48 provided on the hull as shown in Fig. 1.
The reinforcing ribs 48 are fitted between the reinforcing ribs 48 so that the inclination is downward (approximately 8 degrees) in the center, and both ends of the reinforcing ribs 48 are welded and fixed to predetermined positions on the bottom of the ship.

As shown in FIG. 2, the lengths of the side slide bodies 27 and 28 are adapted to match the length of the side plate 51 of the tunnel body 50 in the center from the ship's side plate 49. The gate portion 29 is slightly long in the center and has a damper at the protruding end that is driven by a cylinder (not shown).
a is attached and the gate portion 29a is opened, the cement powder is smoothly fed into a well-known chain conveyor, which is an example of a conveyor (not shown), disposed inside the tunnel body 50 as shown in FIG. It's becoming like that. Note that the air piping connecting to the central slide body 26 and the side slide bodies 27 and 28 will be connected from the central tunnel body 50, so that cement will not adhere to the piping. It disappears.

Since the bottom structure of the fine powder loading ship according to an embodiment of the present invention is constructed as described above, when it is used, the air pipe is connected to the central slide body 2.
6. By sending air into the side slides 27 and 28 and discharging the air from the upper canvases 29 to 31, it is possible to lift the cement powder that is on it, even if the angle of inclination is extremely small. (approximately 8 degrees) Cement powder can be moved downward. At this time, it is assumed that the gate portion 29a is of course open and the chain conveyor inside the tunnel body 50 is driven.

Since the center slide body 26 and the side slide bodies 27 and 28 are respectively attached to the bottom of the ship, the upper space can be effectively taken up, and thereby a large effective volume can be obtained.

In the above embodiment, the widths of the central slide body 26 and the side slide bodies 27 and 28 are determined according to the installation interval of the reinforcing ribs 48 provided on the hull. It is also possible to fill the gaps appropriately and make the center slide body and the side slide bodies wider than the spacing between the reinforcing ribs 48, and by doing so, the gap between the gates can be widened. Therefore, the number of parts such as cylinders that constitute the gate can be reduced.

[Effect of idea]

As is clear from the above explanation, the bottom structure of the fine powder loading ship according to the present invention is not provided with an auxiliary slide connected to the central slide, so the height of the drop to the auxiliary slide is required. Without,
Therefore, the center slide body and the side slide bodies can be disposed closer to the bottom of the ship, thereby increasing the loading weight.

Furthermore, since there is no metal sloped part or the like, the effective volume in the hold increases, allowing more cargo to be packed.

Further, since there are no heavy metal inclined parts or the like, and there are no auxiliary slides or the like, the overall weight is reduced.

Since the side slide body is designed to blow out airflow from the cloth body, the flow gradient can be small, the width can be increased, and the spacing between each gate can be widened. As a result, it is possible to reduce the number of gates having complicated control mechanisms such as cylinders.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the bottom structure of a ship carrying fine powder according to an embodiment of the present invention, FIG. 2 is a side sectional view showing the bottom structure of a ship carrying fine powder according to the above embodiment, and FIG. A plan view of the slide body constituting the above embodiment, FIG. 4 is a sectional view taken along arrow B-B in FIG. 3,
Fig. 5 is a perspective view showing the assembled state of the slide body, Fig. 6 is a partial plan view of the bottom structure of a conventional fine powder loading ship, and Fig. 7 is a cross section taken along arrow A-A in Fig. 6. 8 is a partial perspective view of the bottom structure of a ship carrying fine powder according to another conventional example, and FIG. 9 is a sectional view of the ship carrying fine powder according to the conventional example. Explanation of symbols, 26...Central slide body, 27,
28... Side slide body, 29, 30, 31...
Canvas (cloth material), 29a...Gate part, 50
...Tunnel body.

Claims (1)

[Claims for Utility Model Registration] (1) A conveyor placed in the center of the bottom of the ship, a plurality of central slide bodies arranged side by side on both sides of the conveyor, and a plurality of central slide bodies arranged in series on both sides of the central slide body. The bottom structure of a fine powder loading ship has a side slide body with a side slide body, and the center slide plate and the side slide bodies on both sides each consist of a large box with a low height, and the side or bottom part thereof has a bottom structure. Equipped with an air intake,
The upper part thereof is an opening and is covered with a cloth body, and the central slide body has a sufficient width and is arranged at a slight inclination so as to gradually flow the fine particles into the conveyor. Each of the central slide bodies has a gate portion at its central end, and each of the side slide bodies connected to the central slide body has a sufficient width similar to the central slide body, and A bottom structure of a ship carrying fine powder, characterized in that the partial slide body is arranged at a slight inclination so as to gradually flow the fine powder into the central slide body. (2) The bottom structure of a ship carrying fine powder as set forth in claim 1 of the utility model registration claim, in which a space is provided in the upper part of the box body in the center slide part and the side slide parts, and a lightweight filler is provided. .