JPS581108Y2 - Loading device for fine ore slurry - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a loading device for fine ore slurry.

At the loading port, the fine ore is stowed in the hold in the form of a slurry.
During loading, the supernatant water is discharged while being allowed to settle.

The fine ore slurry that is loaded from the slurry input pipe is stirred greatly in the hold because it is loaded at a speed of, for example, 4 m/sec, and the slurry that has already settled in the loading case is pushed into the stirring button and depression (waterfall-shaped). ), and also delays the separation of supernatant water in the hold, making it impossible to carry out uniform and highly concentrated stowage.

The present invention proposes a powder ore slug IJ- loading device that can solve the above-mentioned problems, and one embodiment thereof will be described below with reference to FIGS. 1 to 3.

A hold 1 is defined by a vertical bulkhead 2, a horizontal bulkhead 3, a double bottom wall 4, and an upper deck 5. The upper deck 5 is provided with a hold opening 6.

The hold 1 has multiple stages in the bow and stern direction, and has a transverse bulkhead 3.
have a double configuration with a drainage trunk 7 formed therebetween.

This drainage trunk 7 communicates with the interior of the hold 1 through a plurality of free water drainage ports 8 provided on one side of the transverse bulkhead 3 in the vertical and horizontal directions, and a supernatant water discharge pipe 9 is provided in the lower part.

A slurry concentration detector 10 is provided in the hold 1 near one of the transverse bulkheads 3, and an overflow transfer/discharge pipe 12 having an overflow valve 11 is provided between the upper parts of the adjacent holds 1.

Near the other transverse bulkhead 3, a slurry input pipe 13 is introduced into the hold 1 while penetrating the upper deck 5, and furthermore, the slurry input pipe 13 is unloaded along the other transverse bulkhead 3 directly below the slurry input pipe 13. A pontoon 14 is provided.

That is, this pontoon 14 has a semicircular shape, and is guided by a vertical guide body 15 provided on the other horizontal bulkhead 3 so that it can be lifted up via rollers (not shown), for example.
Furthermore, the loading is automatically carried out according to the amount of slurry 16 loaded due to the buoyancy of the pontoon 14.

Reference numeral 1T is a movable frame suspended from the port 6, and is movable in the bow and aft direction by being guided by wheels 19 on rails 18 provided in the port 6 in the bow and aft direction.

This movable pedestal 11 is equipped with a drainage pump 20, and the free end of the flexible discharge pipe 21 connected to the discharge side is connected to the vertical partition wall 20.
The flexible suction pipe 22 which extends outside the hold 1 and is connected to the suction side reaches a floating body 23, and a suction port 24 at the end of the flexible suction pipe 22 is attached to the floating body 23.

25 is a vacuum dehydration device provided on the double bottom wall 4.

When loading the slurry from the slurry input pipe 13, the slurry 16 is collided with the pontoon 14 located directly below the slurry 16, is scattered, and its direction is changed, and then flows into the hold 1 and is loaded.

As a result, the amount (height) of the slurry 16 is gradually increased.

At this time, sedimentation has already begun, and the free water in the upper layer flows into the drainage trunk γ through the corresponding free water outlet 8 and is removed overboard by the supernatant water discharge pipe 9.

Since the pontoon 14 lifts up the piled up residue according to its height, the slurry input from the slurry input pipe 13 always collides with the pontoon 14 and does not stir up the already piled slurry.

Furthermore, the floating body 23 is also lifted up according to its height.

The height of slurry loading is overflow transfer discharge pipe 12
and this height! When loading, the overflow valve 11 is opened and the overflow is transferred to the next adjacent hold 1 through the overflow transfer discharge pipe 12.

In this manner, the concentration of the supernatant water is sequentially measured by the slurry concentration detector 10 during loading into the hold 1, and only the supernatant water is drained from the free water drain port 8.

After all the cargo holds 1 have been loaded as expected and sedimentation has been completed, the supernatant water accumulated in the center of the cargo holds 1 is discharged.

That is, the drain pump 20 is activated to suck supernatant water through the suction port 24, and discharge the supernatant water out of the boat through the flexible suction pipe 22 and the flexible discharge pipe 21.

After this drainage is completed, the vacuum dehydration device 25 is operated to perform vacuum dehydration.

In the above embodiment, a flat plate-shaped pontoon 14 was shown, but as shown in FIGS. It is also possible to provide an embodiment in which the slurry outlet 26 is provided at appropriate intervals in the direction of the ship.

According to the present invention described in the embodiments above, the powder slurry introduced into the ship's hold from the slurry injection pipe is changed in flow direction by the pontoon and is scattered.
Since it is supplied across the entire length of the hold, it is possible to load fine ore in a well-balanced manner, and since there is no need to re-stir the feed ore deposited at the bottom of the hold, it is possible to easily separate the fine ore and slurry water. It can carry highly concentrated powder ore.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the present invention, with Figure 1 being a cross-sectional side view, Figure 2 being a longitudinal front view, and Figure 3 being a cross-sectional plan view.
FIG. 4 is a cross-sectional side view of main parts showing another embodiment, and FIG. 5 is a cross-sectional plan view of the same. 1... Hold, 2... Vertical bulkhead, 3...
...Transverse bulkhead, 4...Double bottom wall, 10...
... Slurry concentration detector, 12 ... Overflow transfer discharge pipe, 13 ... Slurry input pipe, 1
4... Pontoon, 15... Guide body, 16... Loading slurry, 25...
Vacuum dehydration equipment.

Claims (1)

[Scope of utility model registration request] A slurry injection pipe is introduced into the hold from the upper deck, and a slurry scattering pontoon is guided by a guide body installed on the bulkhead directly below the slurry injection pipe and is lifted according to the amount of slurry loaded by buoyancy. Equipped with a loading device for powder ore slurry.