RU48174U1 - SAFETY DEVICE FOR ATMOSPHERIC SEDIMENTS UNDER CARGO OPERATIONS ON A SHIP - Google Patents

Abstract

The safety device against atmospheric precipitation during cargo operations on board the vessel contains a shelter made in the form of a roof with hatches and covers on them, and a mechanism for supporting and moving it. The latter is made in the form of a self-propelled machine moving along the rails of the ship loading complex, with a horizontal console that is pulled out of the machine’s hull, which can be rotated around its axis. An arrow consisting of telescopically connected root and extendable sections is articulated on it. The roof is suspended on a retractable section by means of a pivoting device for pivoting the roof in a horizontal plane and swinging it in a vertical plane and provided with hatches with covers distributed over its plane. The device’s self-propelled machine may have a counterweight.

Description

The utility model relates to devices for protecting an open ship cargo hatch and overloaded cargo from precipitation.

It is known "Safety device against precipitation during cargo operations on a ship" according to the USSR author's certificate No. 1576413, IPC V63V 19/28, published on 07.07.90. It contains a shelter in the form of an umbrella and protective flaps and a mechanism for lowering the umbrella in the form of a cable-block system with a lifting mechanism, and a mechanism for closing the flaps made of gear sectors and gear rods.

The disadvantage of this device is that being designed for container handling, it is not applicable for bulk cargo (mineral fertilizers, cement, chalk, etc.).

It is known "Shelter of the hatch" according to the author's certificate of the USSR No. 1668201, IPC V63V 19/28, published on 07.08.91. The shelter itself is made in the form of a cloth supported by an elastic ring with bypass blocks, and the mechanism for supporting and moving the cloth is made in the form of a winch and a cable block system.

The disadvantages of this device are:

- the need for installation on the deck of the vessel in the hold area to install mechanisms for supporting and moving the shelter;

- the impossibility of sheltering certain types of holds with a special configuration of manhole covers;

- the inability to use even in moderate winds due to the high windage of the panel.

The purpose of the claimed design of the safety device is to eliminate these shortcomings, with the possibility of loading and unloading under any adverse weather conditions on ships with different configurations of the hatch covers of cargo holds without the need for additional installation work on the deck.

The goal is achieved as follows:

- a safety device against atmospheric precipitation during cargo operations on a ship is made in the form of a self-propelled machine that moves independently along the ways of the ship loading complex along the pier. The base of the machine is made in the form of a portal similar to a portal crane with movement mechanisms, an anti-theft device and a cable reel. In the upper part of the portal, on the horizontal cantilever axis, a telescopic

and telescoping, at the end of which there is a rectangular hermetic roof with rotation mechanisms around a vertical axis and inclination in a vertical plane. The roof has evenly distributed through holes with covers for the passage of the Cleveland cascade of the ship loading complex. Each cover has a closing mechanism, remotely controlled from a stationary and mobile operator console. To reduce the effort of the boom lifting mechanism, a counterweight is installed at its end, and to ensure tightness during loading, the Cleveland cascade of the ship loading complex is equipped with a flexible skirt that overlaps the flange of the roof opening when it is lowered.

The claimed design of the utility model is illustrated by drawings:

figure 1 - schematic view of the relative location of the download

(unloaded) vessel and declared safety

devices (cross section);

figure 2 is the same for vessels with transverse opening of holds;

figure 3 - schematic view of the relative location of the download

(unloaded) vessel and declared safety

device (plan view).

A horizontal console 2 is installed on the machine 1, oriented in the horizontal plane of the machine 1 with the withdrawal of its end part outside the machine body. This console 2 is provided with a drive device of any suitable design (not shown), allowing the console 2 to rotate around its axis. An arrow 4, consisting of a root 5 and a retractable 6 sections, is fixed on the end part of the console 2 in the hinge unit 3, the extension of the latter being carried out mainly using a hydraulic cylinder (not shown). In the end part of the boom extension 6, a pivoting device 7 is mounted, on which a roof 8 is suspended from the boom 4, having a set of hatches evenly distributed along its plane. The hatches 9 are provided with pivoting covers 10, which can be alternately opened and closed by telemechanical connection from a control tower (not shown). The machine 1 is equipped with wheels 11 for moving it along the berth 12 along the loaded (unloaded) vessel 13 from one serviced hold of the vessel to another. A counterweight 14 is also installed on the machine 1, balancing the unevenness of the impact on the support wheels of the mass of the console 2, boom 4 and the roof 8. The pivoting device 7, providing the roof 8 with the possibility of turning it in the horizontal plane and swinging in the vertical plane, is equipped with a drive mechanism (not shown) of the usual type, for example, an electric motor, a hydraulic motor, a hydraulic cylinder or the like. In this case, the wheels 11 of the self-propelled machine 1 are mounted on the rails 16 of the ship loading complex 17 for its movement along the vessel.

The operation of the device is as follows. Machine 1 is installed on berth 12 along the vessel 13 near to be processed

hold 15. By turning the console 2 around its axis (ensuring the required angle of the boom 4 above the hatch of the hold 15), positioning the boom 4 in the required position (ensuring the desired position of the loading hatches 9 above the hatches of the holds of various sizes in order to carry out central loading at the beginning of filling the hold ) and turning the roof 8 in the horizontal plane (for optimal location of the roof above the hatch along or across the vessel), the proper positioning of the roof 8 above the hatch of the hold is achieved. The required position of the loading hatches 9 over a particular section of the hold is also provided by the extension or retraction of the retractable section 6 of the boom 4.

Then, the vessel’s personnel opens the doors (not shown) of the hold 15 (if the hold exceeds the size of the roof 8, only one wing of the hold can be opened, or both doors open, forming a gap of a suitable size), the roof 8 is lowered by turning the console 8 around its axis and is fixed at a height of 0.1-0.5 m above the hatch of the hold, thereby preventing atmospheric precipitation from entering the hold of the vessel. The cover 10 of one of the hatches 9 opens, and the engineer of the ship-loading complex 17 lowers the Cleveland cascade 18 of this complex into the hole of the roof hatch 8 for loading (unloading) the hold. In the process of loading (unloading) Cleveland cascade 18 is re-installed from hatch to hatch to ensure uniform draft of the vessel and the maximum filling of this hold.

At the end of the loading (unloading), the Cleveland cascade 18 rises, the corresponding cover 10 of the hatch 9 and the sash are closed. Machine 1 moves along the vessel to the next hold.

Taking into account the gradual change in the height of the holds above the water level due to a change in the draft of the vessel in one direction or another during the loading (unloading) process, the necessary angle of the boom 4 lifting is adjusted all the time during the operation by turning the console 2 around its axis, and by swinging the roof 8 in the vertical plane, the roof 8 is parallel to the coaming plane of the hold 15 at different stages of loading (unloading).

Claims (2)

1. A safety device against atmospheric precipitation during cargo operations on board a vessel, comprising a shelter and a mechanism for supporting and moving it during a cargo operation, characterized in that the shelter is made in the form of a rigid rectangular roof plan containing a set of hatches evenly distributed along its plane with lids that have the ability to alternately open and close, for example, by means of telemechanical communication with the control tower, and the mechanism for maintaining the shelter and its movement is performed in the form of a self-propelled machine located on the berth associated with the ship’s path along the ship loader with a horizontal console mounted outside the hull mounted on the specified machine with the possibility of rotation around its axis, and an arrow pivotally mounted on the indicated console, consisting of telescopically connected to each other root and retractable sections, the roof being suspended on a retractable boom section by means of a rotary support device that enables the roof to be rotated in a horizontal plane sharpness and swing in the vertical plane. 2. The safety device according to claim 1, characterized in that the self-propelled machine is equipped with a counterweight, balancing the impact on the machine of the mass of the console with an arrow and a roof.