JPS629198Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a slurry transport vessel.

For example, in a known slurry coal ship, as shown in the partially cutaway side view of FIG. and the dispensing chamber 03 is opened by the valve 06.
a, Transport pipe 0 via the dispensing slurry pump 05
8, and the mother liquor removal chamber 04 is connected to the valve 06.
d. It is connected to a transport pipe 08 via a mother liquor removal pump 010, and the transport pipe 08 is connected to a mother liquor collecting tank 09.

However, in such a slurry tank, in order to completely remove the mother liquor 016 from the hold 01 after the coal loading operation is completed, the mother liquor removal pump 01 is required.
Since the pump 0 sucks air, it must be operated intermittently, and in order to prevent the mother liquor pump 010 from sucking in air,
capacity must be increased.

The present invention was proposed in view of these circumstances, and it increases the slurry loading capacity by reducing the size of the mother liquor removal chamber 04 and preventing the suction of air by the mother liquor removal pump 010, thereby reducing the loading time. With the aim of providing an economical slurry transport vessel with shorter ship times, we have installed a slurry tank to store powder transported in a slurry state mixed with water from onshore powder storage equipment, and a slurry tank installed at the bottom of the slurry tank. a dispensing hopper, a dispensing jet pump disposed below the dispensing hopper via a suction pipe, a draining chamber disposed on the peripheral wall of the dispensing hopper via a wire mesh, and a dispensing chamber disposed through a wire mesh on the peripheral wall of the dispensing hopper; A jet pump for draining water is installed at the bottom of the chamber via a suction pipe, a water tank for storing water, the suction side is connected to the water tank, and the discharge side is connected to the storage equipment on land, the jet pump for discharging water, and the water drain. The present invention is characterized by comprising: pumps connected to the jet pumps for dispensing, and transport pipes connected to the discharge sides of the jet pump for dispensing and the jet pump for draining, respectively.

An embodiment in which the present invention is applied to a coal slurry carrier will be described with reference to the drawings. FIG. 2 is a partially cutaway side view thereof, and FIG. 3 is a partially enlarged view of FIG. 2.

In the above figure, 1 is a ship hold, 2 is a slurry supply pipe, 3 is a discharging hopper, 4 is a draining chamber, 5 is a discharging jet pump, 6a to 6i are valves, 7 is a discharging jet pump suction pipe, 8 is a transport 9 is a water collection tank, 10 is a jet pump for water removal, 11 is a jet pump suction pipe for water removal, 12 is a water supply pipe, 13 is a pump for driving the jet pump, 14 is a suction pipe, 15 is a water circulation pipe, 16 is water, 17 is a wire mesh, 18 is a jet pump driving water pipe, 19 is a hold bottom plate, 20 is a double bottom compartment, 21 is a gutter, 22 is coal, and 23 is a wire mesh holding plate.

In this structure, a slurry supply pipe 2 from shore equipment is connected to the upper part of the hold 1, and the hold bottom plate 19 has a double bottom and top plate structure, and is gently sloped toward the gutter 21 in the center of the hold 1. There is. A dispensing hopper 3 is provided at the longitudinal center of the gutter 21,
The lower part of the dispensing hopper 3 and the suction section of the dispensing jet pump 5 are connected by a dispensing jet pump suction pipe 7 which projects into the double bottom section 20 . The discharge side of the dispensing jet pump 5 is connected to a transport pipe 8, into which a valve 6a is inserted, and a line goes to the water collection tank 9 via a valve 6c on the deck, and to land equipment via a valve 6d. The line is branching off.

An opening is provided in a part of the peripheral wall of the dispensing hopper 3, and a wire mesh 17 is stretched over this opening from the double bottom section 20 side with a wire mesh holding plate 23, and the outer wall surface of the dispensing hopper 3 and the bottom plate of the gutter 21 are wire mesh 17 using
A drainage chamber 4 is attached to cover the area.

The suction parts of the water draining chamber 4 and the water draining jet pump 10 are connected to the water draining jet pump suction pipe 1.
1, a valve 6b is inserted into the water pipe 12, and a water draining jet pump 10 and a transport pipe 8 are connected.
are connected.

The suction pipe 14 and valve 6i of the jet pump driving pump 13 are inserted into the lower part of the water collection tank 9.
The discharge side of the jet pump driving pump 13 is connected to the valve 6.
Water circulation pipe 15 and valve 6b going to onshore equipment via e
The jet pump drive water pipe 18 branches to the jet pump 5 for dispensing and the jet pump 10 for draining water, and after branching, valves 6g and 6h are inserted into each of the jet pumps 5 and 10. has been done.

In such a structure, first, in preparation for loading with water slurry, the valves 6a, 6d, and 6g are fully closed, the valves 6b, 6c, 6h, and 6i are fully opened, and the valves 6e and 6f are fully closed. Set to an appropriate opening.

Next, the water 16 in the water collection tank 9 is sucked in by the jet pump driving pump 13, pressurized, and then adjusted to correspond to an appropriate flow rate by operating the valves 6e and 6f.

The water 16 flowing to the water circulation pipe 15 side goes to the onshore equipment and becomes a slurry mother liquor, while the water 16 flowing to the jet pump drive water pipe 18 drives the water draining jet pump 10, and the water pipe 12, the transport pipe 8, and the valve 6c. After that, it returns to the water collection tank 9.

The water slurry produced in the onshore facility is loaded into the hold 1 through a slurry supply pipe 2, and within the hold 1, coal 22 settles and accumulates. Water 16 for circulating use as slurry mother liquor in closed cycle
The coal flows through the coal 22 layer toward the hopper 3, and at this time, the pulverized coal and water 16, which are smaller than the opening of the wire mesh, pass through the wire mesh 17, and the pulverized coal 22 and water 1
6 enters the water drain chamber 4 and is sucked by the water drain jet pump 10.

Even during dewatering after the completion of loading work, the permeated water is sucked and discharged by the water draining jet pump 10. At the time of unloading, the water 16 in the water collection tank 9 is sucked in by the jet pump driving pump 13, the jet pump 5 for discharging is driven, and the coal 22 in the hold 1 is
will be delivered to onshore facilities in an open cycle.

According to such a structure, the following effects can be achieved.

(1) A jet pump is used as the water removal pump, so it can be operated continuously without worrying about air suction even when dewatering the cargo hold.

(2) The drainage chamber can be small.

(3) It is possible to discharge and drain water from the cargo hold by operating one jet pump drive pump.

(4) Jet pumps have no moving parts, so they are less likely to break down.

In short, according to the present invention, there is provided a slurry tank for storing powder transported in a slurry state mixed with water from a land-based powder storage facility, a dispensing hopper provided at the bottom of the slurry tank, and a dispensing hopper provided at the bottom of the slurry tank. a jet pump for dispensing disposed at the bottom of the dispensing hopper via a suction pipe; a chamber for draining water disposed on the peripheral wall of the dispensing hopper via a wire mesh; A water draining jet pump provided, a water tank for storing water, and a pump whose suction side is communicated with the water tank and whose discharge side is connected to the above-mentioned land storage equipment, the above-mentioned dispensing jet pump, and the water draining jet pump, respectively. The present invention provides an economical slurry transport ship that increases the slurry loading capacity and shortens the cargo handling time by providing transport pipes connected to the discharge sides of the dispensing jet pump and the draining jet pump, respectively. It is extremely useful for industry.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of a known coal slurry carrier, Fig. 2 is a partially cutaway side view showing an embodiment in which the present invention is applied to a coal slurry ship, and Fig. 3 is a partially enlarged view of Fig. 2. be. 1... Ship hold, 2... Slurry supply pipe, 3... Dispensing hopper, 4... Drainage chamber, 5...
Jet pump for dispensing, 6a, 6b, 6c, 6
d, 6e, 6f, 6g, 6h, 6i...Valve, 7...
...Jet pump suction pipe for dispensing, 8...Transport pipe, 9...Water collection tank, 10...Jet pump for draining water, 11...Jet pump suction pipe for draining water, 12...Water pipe, 13...For driving jet pump Pump, 14... Suction pipe, 15... Water circulation pipe, 16... Water, 17... Wire mesh, 18... Jet pump drive water pipe, 19... Hold bottom plate, 20...
Double bottom compartment, 21...Gutter, 22...Coal, 23...
...Wire mesh holding plate.

Claims (1)

[Scope of utility model registration request] A slurry tank that stores powder transported in a slurry state mixed with water from a powder storage facility on land, a dispensing hopper installed at the bottom of the slurry tank, and a suction pipe connected to the bottom of the dispensing hopper. A dispensing jet pump arranged in
A water draining chamber disposed on the peripheral wall of the dispensing hopper via a wire mesh, a water draining jet pump disposed at the lower part of the water draining chamber via a suction pipe, and a water tank for storing water. , a pump whose suction side is connected to the water tank and whose discharge side is connected to the above-mentioned onshore storage equipment, the above-mentioned dispensing jet pump, and the water-draining jet pump, respectively;
A slurry transport ship characterized by comprising transport pipes connected to the discharge sides of the dispensing jet pump and the draining jet pump, respectively.