JPS6113432Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention can efficiently drain water, increase the hold capacity by eliminating the need for shoulder tanks to support hatches, and further improve drainage by throttling or suction at the final stage of loading. The present invention proposes a slurry carrier that can carry out this work, and one embodiment thereof will be described below with reference to FIGS. 1 to 7.

In Figure 1, 1 is the hull forming the hold 2, 3
5 is a hatch opening formed by hatch coaming 4 in the upper part of the hold 2, 5 is a hatch cover, and 6 is a drainage portion provided in the bottom wall 7 forming the hold 2. Hollow pillars 8 are erected near the four corners of the hold opening 3 in the hold 2 to support the load of the hold opening. As shown in FIGS. 2 to 5, these columns 8 include a side wall 9 having a rectangular cross section, a pair of vertical bulkheads 10 that partition the internal space formed by the side wall 9 into three parts, a bottom plate 11, and a top plate 11. It is composed of a plate 12. The bottom plate 11 is fixed to the bottom wall 7, and the top plate 12 is fixed to the hatch coaming 4.
It is attached to the side. The internal space has drainage channels 13 formed on both sides by the longitudinal partition wall 10, respectively. Reference numeral 14 denotes a drain/drain pipe communicating with the lower part of the drain channel 13, which passes through the bottom plate 11 and the bottom wall 7, and has a valve (not shown) provided in the middle thereof. An opening/closing door 1 is provided at the lowest part of the side wall 9 facing the drainage channel 13.
5 is provided, and a ladder 17 is further provided within the drainage channel 13. A plurality of drain ports 19 with filters 18 communicating with the drain channel 13 are provided in the vertical direction on the side wall 9. That is, the filter 18 is a wire mesh filter 20 facing the drain port 19, as shown in FIGS. 6 and 7.
and a fiber filter 21 disposed inside it,
Furthermore, it consists of a reinforcing plate 22 with punching holes disposed on the inside, and a rubber packing frame 23 that is integrated all around and integrates these 20, 21, and 22.
The filter 18 configured as described above can be inserted (detachable) from above into the guide frame 24 provided all around the inside of the drain port 19. The swing guide frame 24a is configured as follows. With the filter 18 inserted into the guide frame 24,
By operating a fastener 26 attached to the filter 18, the filter 18 can be fixed against the inner peripheral surface of the drain port 19. At this time, a rubber packing plate 27 is attached to the inner surface of the periphery. As shown in FIGS. 2 to 5, high-pressure water pipes 2 are installed in both drainage channels 13.
8 are arranged vertically, and these high pressure water pipes 28
The upper end thereof is communicated with a high pressure water supply pipe 29. Further, a large number of nozzles 30 are communicated and protruded from the high-pressure water pipe 28, and these horizontally oriented nozzles 30 penetrate the side wall 9 and open to the outside of the support column 8. Furthermore, drainage channel 13
Piping 31 for pressure increase or pressure reduction communicating with the upper part of
has been established.

In the above configuration, coal, for example, is loaded in the form of slurry into the hold 2 through the hold port 3. At this time, the slurry water is drained through the drain section 6, flows into the drain channel 13 through the drain port 19 and the filter 18, and is drained via the drain pipe 14. Due to its particle size distribution, the loaded coal slurry settles closer to the bottom of the ship than coal with larger particle sizes, and fine particles accumulate in the upper layer of the cargo along with water. For this reason, the ventilation to the inner bottom of the boat during drainage is poor, resulting in a decrease in drainage performance. In order to improve air permeability, it is necessary to destroy the film of fine particles forming the uppermost layer, thereby improving air permeability and dehydration. In response to such a situation, compressed air is supplied into the drainage channel 13 through the pipe 31 with the valve of the drain/drainage pipe 14 closed to increase the pressure inside the drainage channel 13. The compressed air then passes through the filter 18 and enters the hold 2, forcibly ventilating the inside of the cargo, destroying the membrane, improving air permeability, and dewatering. Alternatively, the air inside the drainage channel 13 is sucked through the pipe 31 to reduce the pressure inside the drainage channel 13. As a result, the slurry water in the cargo is sucked into the drainage channel 13 through the filter 18, and the cargo is forcibly ventilated to destroy the membrane, improve air permeability, and promote dewatering. When loaded coal is reslurried and unloaded, high pressure water supply pipe 29
High pressure water is supplied to the high pressure water pipe 28 via the high pressure water pipe 28. Then, the high-pressure water from the high-pressure water pipes 28 is injected into the hold 2 through each nozzle 30 toward the coal, thereby breaking up the coal and turning it into slurry. Note that nozzle 3
The inside of the hold 2 can also be cleaned by high-pressure water jetted from zero.

8a to 8e show various cross-sectional modifications of the support column 8.

As described above, according to the present invention, hollow columns are erected near the four corners of the hatch in the hold to support the load of the hatch. It is possible to increase the hold capacity by eliminating the need for a luder tank. In addition, all or part of the internal space of the pillar is made into a drainage channel, and the wall of the pillar is provided with a drain port with a filter that communicates with the drainage channel, so this pillar can be used to drain water efficiently. . Furthermore, since a pressure increase or decrease pressure piping is provided that communicates with the drainage channel, by increasing or decreasing the pressure inside the drainage channel during loading, it is possible to forcibly ventilate the cargo through the filter, and the membrane that has formed can be removed. This can improve air permeability and dewatering, and by alternately reducing and increasing the pressure, it is possible to remove fine powder from the slurry that clogs the filter.

[Brief explanation of the drawing]

Figures 1 to 7 show an embodiment of the present invention, with Figure 1 being a cross-sectional front view of the entire structure, Figure 2 being a perspective view of the support section, Figure 3 being a sectional view of the same, and Figure 4 being 3, FIG. 5 is a BB sectional view, FIG. 6 is a vertical side view of the filter section, FIG. 7 is a cross-sectional plan view of the same, and FIGS. An example of a cross-sectional modification is shown. 2...Hold, 3...Hold mouth, 6...Drainage section, 7...
...bottom wall, 8...post, 13...drainage channel, 18...
Filter, 19... Drain port, 20... Wire mesh filter, 21... Fiber filter, 22... Reinforcement plate, 23... Rubber packing frame, 31... Piping.

Claims (1)

[Scope of utility model registration request] Hollow columns that support the load of the port are erected near the four corners of the port in the hold, all or part of the internal space of these supports is used as a drainage channel, and the wall surface of the support is connected to the drainage channel. 1. A slurry carrier, comprising: a drain port with a filter, and pressure increasing or decreasing pressure piping communicating with the drain channel.