JP3013755U - Special vessel automatic unloading system - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is intended to provide an automatic unloading system for a special ship that can automatically and efficiently carry out bulk cargo in a hold while unloading while weighing. . According to the present invention, a bottom wall 5 of a hold 4 is formed in a hopper shape, a discharge opening 9 is provided in the hopper-shaped bottom portion 7, and a cargo discharge conveyor 10 is provided below the discharge opening 9. A vertical conveyor 15, a weighing conveyor 17 and a swivel conveyor 19 are connected to the cargo unloading conveyor 10 so that the amount of unloading cargo can be measured by the measuring conveyor 19.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a special ship for transporting bulk cargo such as rock and crushed stone, granular cargo such as earth and sand, grains and beans, and powder cargo such as cement, or bulk cargo containing liquid such as sea sand and river sand. It relates to the automatic unloading system of.

[0002]

[Prior art]

 Conventionally, bulk, granular, or powdered bulk cargo is loaded into the hold from the hold opening on the upper deck of the cargo ship by a loading means such as a feeder hose. When unloading the cargo that has been bulk-loaded in the hold of this cargo ship, a bulldozer, etc. is installed in the hold to collect the bulk-load cargo in the hold, and the cargo is loaded into a crane with grab buckets. They were unloaded using a carry-out device such as a bucket wheel or gantry crane.

However, when the bulk cargo in the hold is collected by a bulldozer or the like and unloaded in a grab bucket or the like, not only the landing efficiency of the cargo is poor, but also the crane with club bucket and the bucket wheel. There was a problem that a large and heavy unloading device such as a gantry crane or a gantry crane was required.

Therefore, the applicant of the present application has filed an application for Japanese Utility Model Application No. 5-6670 “Special Ship” in order to solve the above problems. In this special ship, a stirring device for stirring the cargo in the cargo hold is installed in the bow and tail direction, and the bottom wall of the cargo hold is formed in a hopper shape and can be opened and closed on the hopper-shaped bottom wall. Such a discharge opening is provided, a cargo carry-out conveyor is provided below the discharge opening, and the cargo carry-out conveyor is landed via a vertical conveyor, a swivel conveyor, or the like.

[0005]

[Problems to be solved by the invention] However, when there are several ports of call, it is necessary to determine the landing amount of bulk cargo, and most of them measure the landing amount by the reduction of the cargo in the hold, that is, the calculation. Is the current situation. Therefore, the object of the present invention is to provide an automatic unloading system for a special ship that automates each process from the above-mentioned cargo unloading conveyor to the swivel conveyor for landing and can weigh cargo while landing. is there.

[0006]

[Means for Solving the Problems]

 The above object of the present invention can be achieved by a special ship having the following structure. That is, the gist is that the bottom wall of the hold is formed in a hopper shape, and an opening / closing discharge opening is provided in the hopper-shaped bottom wall, and a cargo unloading conveyor is provided below the discharge opening. This is an automatic unloading system for a special ship, which is characterized in that a vertical conveyor, a weighing conveyor, and a swiveling conveyor are connected in series, and the amount of cargo carried out can be measured by the weighing conveyor. Further, the side wall on the bow-stern side of the hold is formed to be inclined like a hopper, and the discharge opening of the bottom wall of the hold has a liquid-tight structure. Further, the stirring device for stirring the cargo in the above-mentioned hold is provided so as to be movable in the bow-stern direction.

[0007]

[Action]

 In the special ship of the present invention, as shown in FIG. 5, the bulk cargo B loaded in the hold 4 of the hull 2 is discharged from the respective hopper-shaped bottoms 7, 7 ,. It is dropped on the cargo carrying-out conveyor 10 arranged below. Then, it is transferred to the vertical conveyor 15 by the cargo carrying-out conveyor 10 and transferred onto the hull 2 by the vertical conveyor 15. It is dropped from the vertical conveyor 15 into a stacking hopper 16 and further below it onto a weighing conveyor 17.

Next, the weight of the bulk cargo B dropped on the weighing conveyor 17 is accumulated by the weighing mechanism provided in the weighing conveyor 17, and the weight of the bulk cargo B passing through the weighing conveyor 17 is accumulated. The bulk cargo B transferred to the swivel conveyor 19 is transported to and loaded on an arbitrary place outside the ship by the swivel conveyor 19, and at the same time, the landing amount of the bulk cargo B can be accurately grasped. Become. When loading cargo into the hold 4, if the stirrer A is moved while moving in the bow-stern direction of the hold 4, it is possible to uniformly load the cargo in bulk throughout the hold 4. At the same time as improving the loading efficiency, the stability of the hull 2 is prevented from deteriorating due to uneven distribution of cargo in the hold 4, and safe navigation is possible.

[0009]

【Example】

 Hereinafter, a special ship according to the present invention will be described in detail with reference to the drawings showing an embodiment thereof. As shown in FIGS. 1 and 2, the special ship 1 does not have a propulsion device on the hull 2 and is pushed by a pusher ship 3 equipped with the propulsion device. There is a mode in which the ship is equipped with a propulsion device, or a mode in which the ship is pulled by using a tugboat.

A cargo hold 4 is provided for loading, leaving a space at the bottom of the hull 2. The bottom wall 5 of the hold 4 is tilted toward the center of the hold 4 from both sides in the width direction of the hull 2 and is further inclined downwards to form a large number of hopper-like bottom parts. 7 are formed. As shown in FIG. 3, the hopper-shaped bottom portion 7 inclines downward from the left and right side walls 8 in the width direction of the vessel 4 toward the center, and at the center of the lowest position, A horizontal discharge opening 9 is formed over the entire length of the hold 4 along the direction of success, and a horizontal cargo carrying conveyor 10 is arranged below the discharge opening 9.

Therefore, each of the discharge openings 9 is provided with an opening / closing door 11 for opening and closing the opening. The opening / closing mechanism of the opening / closing door 11 is a mechanism that slides to the left and right by a door opening / closing cylinder 12 such as a hydraulic cylinder, and further, in order to make the discharge opening 9 a liquid-tight structure, A packing 13 such as a P packing or a sheet rubber packing is attached to the peripheral edge portion of the opening 9 and the discharge opening 9 is closed by the opening / closing door 11 by the door opening / closing cylinder 12, and then the pressing cylinder 14 is pressed from below the opening / closing door 11. By pressing the opening / closing door 11 against the packing 13 with, the liquid tightness in the discharge opening 9 portion is secured.

A stirrer A for stirring the bulk cargo in the hold 4 is provided on the upper part of the hold 4 so as to be movable in the bow-stern direction. Next, as shown in FIG. 1, a vertical conveyor 15 for transporting the cargo transported from the cargo transport conveyor 10 from the cargo hold 4 to the hull 2 is provided on the tip side of the cargo transport conveyor 10, that is, on the bow side. It is provided. Then, a stacking hopper 16 is installed at the end of the vertical conveyor 15, and the weighing conveyor 17 is arranged below the discharge of the stacking hopper 16 as shown in FIG. The weighing conveyor 17 is provided with a load cell type weighing mechanism which detects a strain due to a load by a conveyor receiving roller 18 in the middle of the conveyor, converts the strain into a weight and performs weighing.

A swivel conveyor 19 is arranged on the terminal side of the weighing conveyor 17 to transport the cargo to any place outside the ship. As the above-mentioned measuring mechanism, various mechanisms other than the load cell system are conceivable, and it is desirable to adopt the mechanism most suitable for the situation.

[0014]

[Effect of device]

 As described above, according to the present invention, the transport of bulk cargo in the hold is uniformly discharged from each hopper-shaped bottom at the bottom of the cargo, and the cargo is transferred onto the ship by the cargo carrying conveyor and the vertical conveyor. In addition, landing is carried out by the swiveling conveyor while the discharge amount is measured by the weighing conveyor, and the series of unloading work can be automated, and the landing amount can be accurately grasped, and it is possible to call at several ports. Landing work can be done efficiently.

[Brief description of drawings]

FIG. 1 is an explanatory side sectional view of a special ship according to the present invention.

FIG. 2 is an explanatory view of the same plane.

FIG. 3 is a cross-sectional view showing a discharge opening portion of the present invention.

FIG. 4 is a side view showing a measuring conveyor portion of the present invention.

FIG. 5 is an overall explanatory view showing a carry-out process of the present invention.

[Explanation of symbols]

 A Stirrer B Bulk cargo 1 Special ship 2 Hull 3 Pusher 4 Hold 5 Bottom wall 6 Partition 7 Hopper-shaped bottom 8 Left and right side walls 9 Discharge opening 10 Cargo carry-out conveyor 11 Open / close door 12 Door opening / closing cylinder 13 Packing 14 Cylinder for pressing 15 Vertical conveyor 16 Hopper for collecting 17 Measuring conveyor 18 Conveyor receiving roller 19 Swiveling conveyor

Claims (4)

[Scope of utility model registration request] 1. A bottom wall of a hold is formed in a hopper shape, and a discharge opening that can be opened and closed is provided in the hopper-shaped bottom wall, and a cargo unloading conveyor is provided below the discharge opening, and the cargo unloading conveyor. An automatic unloading system for a special ship, characterized in that a vertical conveyor, a weighing conveyor, and a swiveling conveyor are connected in series, and the amount of cargo carried out can be measured by the weighing conveyor. 2. The automatic unloading system for a special ship according to claim 1, wherein the side wall on the bow-stern side of the hold is formed in a hopper shape. 3. The automatic unloading system for a special ship according to claim 1, wherein the discharge opening of the bottom wall of the hold has a liquid-tight structure. 4. The automatic special ship unloading system according to claim 1, wherein an agitating device for agitating the cargo in the hold is provided so as to be movable in the fore-and-aft direction.