JPS5833159B2 - Transportation method by coal processing vessel and coal processing vessel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transportation method using a coal processing vessel and a coal processing vessel.

When using coal as pulverized coal, there are two methods: one method is to make the coal into pulverized coal at the loading dock, and the other is to make it into pulverized coal at the oil pumping side.

However, pollution problems arise due to the crushing and drying of both methods.

Therefore, the present invention provides a transportation method using a coal processing ship and a coal processing ship that can solve the above-mentioned problems, and one embodiment thereof will be described below based on the drawings.

In FIGS. 1 to 5, 1 is a ship, and there are a plurality of closed-type ships 2A (six in the embodiment) in the bow and aft direction.

2B, 2C, 2D, 2E, 2F, and a central conveyor section 3 in the middle.

The ships 2A to 2F have left and right bottoms 6A, 6B formed by a center hopper 4 and side hoppers 5A, 5B in a cross section, and a wavy bottom hopper 7 in a longitudinal section.

Screw conveyors 8A, 8B extending in the width direction of the ship are disposed at each wave bottom of the ship bottoms 6A, 6B, and the outer ends of these screw conveyors 8A, 8B are connected to side hoppers 5A, 5B.
The case 10A has a space 9I inside the center hopper 4 at its inner end.

Supported by 10B.

In addition, each screw conveyor 8A, 8B has a case 10A.
, IDH are respectively driven by drive devices 11A and 11B attached to the IDH.

Chain conveyors 12A, 12B in the fore-and-aft direction are arranged in the cases IOA, 10B, and the ends of these chain conveyors 12A, 12B reach the central conveyor section 3.

Above are 8A, 8B to 12A. 12B constitutes an unloading device 13.

A packet conveyor 14, to which the chain conveyors 12A and 12B are connected, is provided in the central conveyor section 3.

A pair of packet conveyors 14 are provided on the bow side and the stern side, and penetrate through the upper deck 15, respectively, and have their discharge ports 16 located above the upper deck 15.

At the top of each of the holds 2A to 2F, there is a hatch 17 that can be opened and closed.
A, 17B.

17C, 17D, 17E, and 17F are provided.

18 is a pulverizer connectable to the packet conveyor 14;
19 is connected to this pulverizer 18 and is connected to each ship hold 2A to 2.
A pulverized coal conveying device (chain conveyor) arranged to communicate with the upper part of F is shown.

An inert gas recovery pipe 20 and a secondary gas supply pipe 21 are provided on the upper deck 15 and communicate with the upper part of each of the holds 2A to 2F.

22 has its starting end connected to the discharge port 1 of the packet conveyor 14.
6, and a rotating chain conveyor 23 that can be swung out of the ship is disposed at the end of the chain conveyor.

24 is a discharge mobile fan, 25 is a discharge pipe, and each ship hold 2A~
Each is located on the 2nd floor.

26 is an inert gas generator installed on the upper deck 15, 27
is the cargo handling control room.

Also, on the bottom of the ship, there is an inert gas supply pipe 28 for the crosslinking prevention device.
, an inert gas supply pipe 29 to the screw conveyors 8A and 8B, and a chain conveyor 12A.

An inert gas supply pipe 30 to 12B is connected.

Reference numeral 31 denotes a purge, and a powder/granular material pneumatic conveying device 32 is provided.

In Fig. 4, 33 is the raw coal loading device, and the notch 17A
It has a conveyor 34 that can be inserted into ~17F.

The barge 31 is installed at the berthing point of the ship 1,
As shown in FIGS. 6 and 7, it is moored to a work floor 35 or a dolphin 36 by a mooring cable 37.

The powder/granular material pneumatic conveying device 32 includes a packet elevator 39 having a powder/granular material receiving hopper 38 at its lower part, the powder/granular material receiving hopper, and a rotating chain conveyor 2 on the ship 1 side.
A telescopic connection hose 40 that connects the
, a call bunker 43 connected to the upper end outlet 42 of the packet elevator 39, and this call bunker 4.
This inert gas generator 46 consists of a blow tank 44 connected and disposed below the tank 3, an inert gas compressor 45 connected to the tank 44, and an inert gas generator 46υ). It is composed of an active gas generation section 47, a cooling tower 48, and a filter 49.

The inert gas compression device 45 (composed of a motor 50, a transmission gear case 51, a compressor 52, etc.)
An inert gas supply pipe 53 from the filter 49 is connected to a compressor 52.

At the connecting portion between the coal bunker 43 and the blow tank 44, a quantitative cutting device 54 and an on-off valve 55 are provided.

A compressed inert gas supply pipe 57 from the compressor 52 is connected to a lower outlet 56 of the blow tank 44, and a powder transport pipe 58 extends from the outlet 56.

Note that a branch pipe 59 from the compressed inert gas supply pipe 57 communicates with the upper part of the blow tank 44 .

Two blow tanks 44 are provided for one coal bunker 43 and are used alternately.

Two of the above-mentioned powder and granular material pneumatic conveying devices 32 are arranged on the barge 31, and thus correspond to a pair of rotating chain conveyors 23.

Furthermore, the structure is such that inert gas can be supplied to each other between the yarns before and after compression.

Reference numeral 60 indicates a secondary gas supply pipe branched from the compressed inert gas supply pipe 57, and 61 indicates an inert gas recovery pipe connected to the filter 49.

The telescoping connection hose 40 has a lower end connected to the hopper 38.
A bellows cylinder body 62 connected to the bellows cylinder body 62, an outer cylinder 63 connected to the upper end of the bellows cylinder body 62, an inner cylinder 64 fitted to the outer cylinder 63 in a telescopically slidable manner, and It consists of a cylinder 65 for telescopic sliding, and a universal joint (ball joint) 66 connected to the upper end of the inner cylinder 64, and this universal joint 66 can be attached to and detached from the discharge port of the rotating chain conveyor 23 with one touch. It is configured.

An elongated hole in the lateral direction is formed at the upper end of the pedestal 41, and a pin 69 from the outer cylinder 63 is engaged with this elongated hole.

The pedestal 41 moves up and down, and various methods such as a cylinder, a rack and pinion, etc. can be used to move up and down.

First, I will explain the work at the loading dock.

As shown in FIG. 4, with the ship 1 at anchor, the conveyor 34 from the raw coal loading device 33 on the loading port side is transferred to the hatch 17.
It will be located in holds 2A to 2F through A-17F.

As a result, coal can be loaded into each of the holds 2A to 2F, but here the loading is carried out in such a way that one vessel is empty of two people and all of the other vessels 2B to 2F are loaded.

After the loading is completed as described above, the ship 1 navigates and transports the items.

During this transportation, the coal in one ship 2B is taken out onto the upper deck 15 and pulverized by the pulverizer 18.

In other words, screw conveyor 8A corresponding to ship 2BGC
, 8B, chain conveyors 12A, 12B, and packet conveyor 14.

Then, the coal in hold 2B is transferred to screw conveyor 8A.

8B into cases 10A, 10B, and conveyed to the central conveyor section 3 side by chain conveyors 12A, 12B.

The coal is then transferred to the upper deck 15 by a packet conveyor 14.
It is lifted upward and supplied from the discharge port 16 to the pulverizer 18 via a chute or the like.

In this pulverizer 18 , the coal is pulverized into pulverized coal, which is transferred to a pulverized coal conveying device 19 .

The pulverized coal is then loaded into two empty ship holds.

Through such operations, the coal in the hold 2B becomes pulverized coal and is transferred to two people in the hold, and eventually the ship 2B becomes empty.

In the same manner, the coal in the ship 2B is pulverized, and the pulverized coal is loaded into the empty ship 2B.

In this way, all the coal is turned into pulverized coal, and finally the ship 2F becomes empty.

Next, I will explain the frying process.

With the ship 1 positioned at the berthing point, the rotating chain conveyor 23 is swung out of the ship, and the universal joint 66 is connected to its discharge port.

and a screw conveyor 8A of any vessel 2A to 2E,
8B and chain conveyor 12A.

12B, the packet conveyor 14, and both chain conveyors 22, 23 are driven.

Then, the pulverized coal in any of the vessels 2A to 2E is taken out into cases 10A and 10B by screw conveyors 8A and 8B, and then transported to the central conveyor section 3 side by chain conveyors 12A and 12B.

The pulverized coal is then transferred to the upper deck 1 by a packet conveyor 14.
5 and passed through the outlet 16 to the chain conveyor 22 and then conveyed by the revolving conveyor 23.

The pulverized coal from the discharge port goes through the universal joint 66, the inner cylinder 64, and the outer cylinder 6.
3. The powder passes through the bellows cylinder 62 and enters the powder receiving hopper 38, and then is sent to the coal bunker 43 via the packet elevator 39, where it is temporarily stored.

The stored pulverized coal is alternately cut out in fixed amounts into the pair of blow tanks 44 by opening and closing the on-off valve 55 and operating the quantitative cutting device 54.

At this time, the inert gas compressor 46 and the inert gas generator 46 are in operation, so the inert gas generated in the inert gas generator 47 and passed through the cooling tower 4B and the filter 49 is compressed by the compressor 52. In this state, a fixed amount of water is cut out and supplied to the upper part of the blow tank 44 and the outlet 56.

As a result, the pulverized coal in the blow tank 44 is taken out from the outlet 56 by the pressurizing action from inside and the ejector action at the outlet 56, and is gaseously transported in the powder transport pipe 58 together with the inert gas. The cargo is unloaded.

The inert gas used for this unloading is the inert gas recovery pipe 6
1 and collected in a filter 49 for reuse.

During such unloading work, the secondary gas supply pipe 60 on the barge 31 side and the secondary gas supply pipe 21 on the ship 1 side are connected, so that the inert gas generated on the barge 31 side is Inert gas supply lines 28.29.30 can be supplied.

When all the powder and granular materials from each ship 2A to 2E have been unloaded, air is sent into each ship hold 2A to 2F by the exhaust motor fan 24 and exhausted from the discharge pipe 25,
Make the inside of 2F safe.

As described above, according to the method of the present invention, coal can be pulverized and dried during transportation by ship, which solves the pollution problem, and gas transportation is possible during unloading, making it possible to improve port facilities and location. Conditions are advantageous.

Furthermore, according to the apparatus of the present invention, the method of the present invention can be carried out reliably.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a vertical side view of the ship, Fig. 2 is a plan view, Fig. 3 is a plan sectional view, Fig. 4 is a cross-sectional front view, and Fig. 5 is a main part. 6 is a side view of the purge portion, and FIG. 7 is a plan view thereof. 1... Ship, 2A, 2B, 2C, 2D, 2E. 2F...Ship, 3...Central conveyor section, 8A, 8
B... Screw conveyor, 12A, 12B... Chain conveyor, 13... Unloading device, 14... Packet conveyor, 15... Upper deck, 16... Discharge port, 1
7A. 17B, 17C, 17D, 17E, 17F... hatch, 18... pulverizing device, 19... pulverized coal conveying device,
31... Purge, 32... Powder air supply device, 33.
... Raw coal loading device, 34... Conveyor, 38... Hopper for receiving powder and granular material, 39... Packet elevator.
143...Cole Bunker, 44...Blow Tank, 450. . Inert gas compression device, 46...Inert gas generation device.

Claims (1)

[Scope of Claims] 1. With one ship empty and all other ships loaded with coal, the coal in one of the loading ships is taken out onto the upper deck while the ship is underway, and a pulverizer is installed. A transportation method using a coal processing ship in which the pulverized coal is pulverized by a coal processing vessel, then loaded onto an empty ship, and this process is repeated one after another to turn all the coal into pulverized coal during transportation by ship. 2. A plurality of ships having a hopper-shaped lower part and a hatch at the upper part, an unloading device installed between the lower part of these ships and the central conveyor section, a packet conveyor installed within the central conveyor section, and the packet conveyor installed in the central conveyor section. A coal processing ship consisting of a pulverizer connected to a conveyor and installed on the upper deck, and a pulverized coal transport device connected to the pulverizer and placed in communication with the upper part of each ship.