RU2041124C1 - Self-unloading vessel for powdered cargoes - Google Patents

Abstract

FIELD: water transport. SUBSTANCE: vessel has two cargo holds; vessel is provided with double bottom and double sides in area of these cargo holds. Articulated on plating of inner bottom 3 are sections of aerobottom 4 which are turned by means of ropes 5 connected with their drive mechanism. Located between inner side of ship and sections 4 is screw conveyer for powdered cargoes. Each section of aerobottom is secured by means of pipe on inner bottom plating at ship's side. Pipe is aerodynamically connected with compressed air source and with chambers under each aerotrack of aerobottom. EFFECT: enhanced reliability. 2 cl, 8 dwg

Description

 The invention relates to water transport and is intended for the transportation and self-unloading of dusty materials, such as cement.

 A self-unloading vessel for pulverized cargoes is known, comprising aerodnail sections mounted on a double-bottom deck of a hold, equipped with airways, the cavities under which are communicated by means of pipes with a compressed air source (auth. St. N 107624, class B 63 V 35/30, 1950).

 With this design of cargo tanks, the vessel is used to transport only pulverized cargo.

 The purpose of the invention is the improvement of convenience in the operation of the vessel.

 This goal is achieved by the fact that in a self-unloading vessel for pulverized cargo, containing mounted on the double bottom of the hold deck sections of the aerial plate, equipped with aero tracks, the cavities under which are communicated by means of pipes with a source of compressed air, each section of the aerial plate is mounted for rotation in a vertical plane by means of a corresponding pipe, which is rigidly connected with the longitudinal end of the aerodrome section and is installed on the deck of the double hold of the vessel along its side, while in the deck it is double on the bottom of the hold between the flanges and the trough sections aerodnischa performed with them arranged in a screw-type conveyors.

 In addition, the sections of the aerodrome are connected via cables to the drives of their rotation, which is equipped with the vessel.

 Figure 1 presents a view of the ship from above with the main deck (with a break) removed from a section of its length; figure 2 section aa in figure 1; in Fig.3 a section bB in Fig. 1 (conditionally without a breakout); figure 4 section BB in figure 1; in Fig.5 node I in Fig.3; in Fig.6 node II in Fig.4; Fig.7 is a view along arrow A of Fig.6; in Fig.8 section CC of Fig.7.

 Vessel 1 is made with two cargo holds, in the area of which it has a double bottom and double sides. The holds are equipped with hatch covers 2. On the floor of the second bottom 3 sections of the airfoil are articulated 4. The rotation of section 4 is carried out using cables 5 connected to the mechanism of their drive 6. Between the inner sides of the vessel and section 4 is placed a dust conveyor 7 in the trough (channel) screw type. The conveyor 7 is connected to the cargo supply mechanism from the bottom level outside the vessel 1, for example, with a pneumatic screw pump 8.

The working (upper) surface of the aerodrome is formed of alternating airways 9 and a load divider 10 (protrusions with a wedge-shaped cross-section with a plane parallel to the ship’s diametrical plane). Airways 9 and dividers 10 are oriented along the width of the vessel and have a slope from the diametrical plane of the vessel 1 to the side (Fig.1,3). The angle of inclination of the plane of the air tracks to the plane of the bottom of the vessel 1 is determined by the angle at which the aerated cement begins to flow downhill; this angle is 2.3 ^o ).

 A pipe serving as a swivel shaft of section 4 and the floor of the second bottom 3, and also as an air duct connecting the compressor (not shown conventionally) with a cavity 12 under each of the air tracks 9. (Fig. 8 shows the flow of air from the pipe 11 into the cavity 12 and through the holes in the air track 9).

 Screw conveyors 7, placed on one side, supply cargo to the same pneumatic screw pump 8. Each of the conveyors 7 is connected to the engine 13.

 To protect sections 4 (when they are inoperative (vertical) position) from damage during loading and unloading of the vessel, visors 14 are installed on the longitudinal coamings of cargo holds.

 When placing sections 4 on the floor of the second bottom between them, as well as between sections 4 and transverse bulkheads (at the ends of the hold), a seal is created, for example, using rubber gaskets (not shown). These gaskets make it possible to isolate the surface of the hold under the aerodrome from dust penetration.

 Vessel 1, by virtue of the design features described above, can be used for bulk transportation of pulverized cargoes (cement, dolomite flour, etc.) or for the transport of piece and bulk cargoes.

 The holds are loaded with a pulverized cargo with the hatch covers 2 closed and sections of the airfoil laid on the floor of the second bottom 4. The pulverized cargo is supplied to the hold through the pipeline of the coastal system through the openings in the hatch covers (holes are not shown). After filling the hold, the loading openings are closed.

 Dusty cargo is unloaded using the ship's cargo system. To do this, through the holes in the airways 9, air is pumped into the mass of cargo entering the cavity 12 through the pipe 11 from the compressor. At the same time, a conveyor 7 is driven, supplying cargo to the pump 8; the latter moves the cargo outside the vessel. In sections of the aerodnitsa 4, the entire cargo "flows" onto the conveyors 7.

 If it is necessary to subsequently transport, for example, containers on the vessel, the surfaces of the hold are cleaned from plaque (residue) of dusty cargo.

 For blowing the bottom surface of the hatch covers and the surface of the transverse bulkheads, for example, a pipe moving along the length of the hold made with holes (nozzles) can be used. The ends of the pipe, it is advisable to fix under the visors 14 and to provide air to it from the compressor. Such a pipe can also be used for distribution (alignment) along the length of the hold of a dusty cargo during its loading. After cleaning the surfaces of the covers 2 and the transverse bulkheads of the section of the aerodrome 4 using cables 5 and the mechanism of the drive 6 are installed and secured in a vertical position (figure 4). Mounting details of sections 4 in this position are not conventionally shown. Containers are loaded into the hold and, if necessary, onto hatch covers.

Claims (2)

 1. A SELF-UNLOADING VESSEL FOR DUSTY GOODS, containing sections of the aerodrome mounted on the double bottom of the hold, equipped with aerodromes, the cavities under which are connected by means of pipes with a source of compressed air, characterized in that each aerodrome section is mounted with the possibility of rotation in the vertical plane by means of its corresponding pipe , which is rigidly connected with the longitudinal end of the aerodrome section and is installed on the deck of the double bottom of the hold of the vessel along its side, while in the floor of the double bottom of the hold of b mouths and chute sections aerodnischa performed with them arranged in a screw-type conveyors.  2. The ship under item 1, characterized in that the sections of the aerodrome are connected via cables to the drive of their rotation, which is equipped with the vessel.

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