JP2000038196A - Inboard device for cleaning and coating hold wall face of cargo ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the time and cost and to prevent the danger of scaffold workers of a cargo storage section including the assembly and removal of erect members and plates by providing an automated friction blasting device horizontally movably along four faces of a safety rail respectively. SOLUTION: A blast machine 70 is arranged to face the face 24 of a storage section and sprays friction sand such as steel shots from an impeller or an injection machine 72 through the opening section of a housing facing outward. The blast machine 70 is pushed or pulled along a rail 68 by a mechanism 74 such as a motor driven gear meshed with a rail face or a motor driven rubber wheel friction-coupled with the rail 68. Consumed steel shots are dropped on the floor surface of the housing of the spray machine 72 together with refuse and are collected by a return line, then they are sent to a base section 36 or a reproduction station provided on the outside of the storage section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION A typical cargo ship is a cargo ship having a hull, and has an internal volume defined at least in at least a main portion of an intermediate portion thereof by a side wall and a bottom portion of the hull. Are divided into a plurality of cargo holding sections (instead, sometimes referred to as tanks). Depending on the width and length of the ship, the receiving section for the loaded cargo is provided in one or more parallel sections extending in the length direction of the ship, and includes a plurality of longitudinal partitions and a plurality of transverse partitions. And divided by The upper ends of the longitudinal bulkheads and the side walls of the hull, together with the associated structure, provide the respective stern walkways of the deck of the ship, and the upper ends of the transverse bulkheads are the port, starboard walkways of the deck I will provide a. The bottom part of the loading cargo storage part is formed by each part of the upper surface inside the hull bottom part. Each portion of the side wall of the individual cargo hold is, if formed by the side wall of the hull, the side of the longitudinal bulkhead or the side of the transverse bulkhead is generally vertical, but with a slope. It can be applied or curved area. The loading cargo storage section is typically open at the top to fill the entire area and is substantially as large as the maximum horizontal cross-sectional area. These openings are commonly referred to as hatches and are usually closed by an openable hatch cover during the transport of the load, during storage and during standby periods.
The hatch cover is designed to be manually lifted out of the closed position as a unit, or to be folded out of the closed position, housed in a tent, or wound up.

A typical cargo ship is used to transport fluid, pumpable materials that do not use any components to cover the cargo as well as containers and packaging material. . However, boxes, bags,
Containers containing cans, containers and other materials in the cargo hold may be used. A cargo ship may have a single hull structure, a double hull structure, a part of a double hull structure (for example, a double hull), and the remainder a single hull structure.

[0003] Each side wall, bottom and top of the cargo ship is typically made of steel, with edges and intersections welded.

[0004]

BACKGROUND OF THE INVENTION The inner wall of a cargo compartment, like the outer hull, is exposed to at least some of the stressful environmental conditions. In fact, environmental stresses acting on the walls of the loading bays are experienced outside the hull due to the nature of certain cargoes, such as rock salt, which are reactive and corrosive, and the containment space. It causes larger-scale surface corrosion. Therefore, in order to extend the economic life of the cargo ship and place it in good maintenance, the hull should be cleaned and coated on the inside surface of each cargo hold while it is new, and then periodically Are re-cleaned and re-coated.

[0005] When assembling a new cargo ship, at least a part of the plate material forming the respective portions of the hull and the cargo receiving section is cleaned and cleaned before welding these together with the sheets to form respective walls. After coating and then welding, the border area of the weld seam can be more easily cleaned or re-cleaned, or coated and re-coated. This is a particularly attractive style if the coating applied is a reactive coating (eg, "epoxy") applied by dipping, painting or spraying.

However, in many instances, the walls of the cargo compartment will be cleaned after cutting, welding, bolting and at least some installation of fixtures have been completed, such as the outer hull of a newly built ship. , Coating is done.

[0007] In both the above described examples of new shipbuilding and in the repair and refurbishment of ships, the walls of the cargo compartment are cleaned using transportable scaffolds which are provided temporarily upright in the cargo compartment. It is a common tradition to apply coatings (here, “cargo compartment wall” refers to the hull surface, longitudinal bulkhead surface, above the hull bottom wall, transverse bulkhead surface, hatch cover Used including the upper side). This practice may be subsidized or replaced by a "cherry picker", a worker elevator that can move down temporarily into the cargo hold.

[0008] The cleaning of the surface is typically carried out with particles of friction material.
("Grit") impinging on the surface to be cleaned. In some instances, the particles are simply sprayed by a worker wearing protective clothing and a respirator through a hose and nozzle into a blast of compressed air toward the work surface. In other examples, similarly dressed personnel use pneumatic or gravity-fed centrifugal impellers with the outlet directed directly to the work surface.

[0009] Friction sand impacts the surface to be cleaned, so any substance that is vulnerable to attack is primarily scale, rust,
It will abrade away all the cargo residue left before the build-up, and the coating residue left behind by the environment after construction. When performing abrasion blasting, the cleaning personnel may substantially remove all "bad" parts and continue working without removing "good" parts, and then move on to cleaning adjacent or next areas of the surface. Responsibility.

[0010] The consumed sand thus contains not only the material sprayed on the work surface, but also the material that has been stripped off by impact, all of which are intermingled. In some examples,
Since the working head is equipped with a mechanism for collecting spent sand, such as a catch container placed on the bottom surface or a funnel and a suction tube, the wear blasting operation is performed in a sequential cleaning type. In other examples, the consumed sand simply falls off the floor, i.e., from the top of the bottom wall, to the surface that faces upwards from the beginning of the scaffolding and fixtures, or is otherwise removed by suction. Collected by workers who assist blasting workers.

In some other instances, the sand is made of particles of a sharp, refractory material, such as carborundum or glass shards. In other examples, they are made from sharp ferromagnetic strips, including steel strips or spheres. In that case, the components of the sand used can be separated and collected from the debris of the coating layer and other debris using a magnetic or electromagnetic collector or separator.

[0012] The spent sand is sorted, subjected to different treatments with different preferences, and then separated into disposal and reuse.

The coating following cleaning is typically applied by spraying. Generally, these are applied by non-technical people, merchants who are called "painters" in broken words.

[0014] The modern trend in coating involves the convenient means of applying, spreading and continuity of the layers, including running means or media which allow this and escape to the air when the process is completed. Since only minimal volatile organic compounds are available, these volatiles
It can be collected in containers, naturally reduced, burned, or subjected to other processing.

[0015] The scaffolds used in the cargo hold to support workers during cleaning and paint painting operations are typically conventional construction scaffolds, which include:
Includes many modular parts and planks of the framework. In a sense, it is convenient to use such a scaffold. Because a set of component parts can be assembled in a variety of different combinations to enable working in cargo compartments with various lengths, widths, heights and physical penetrations It is.
However, assembly and disassembly are time consuming, and fixing or sloping on slabs or dropping parts unfortunately can result in accidents and injuries. And, changing work numbers or repeating assembly and disassembly of parts often include climbing a scaffold while carrying heavy equipment. Blasting and coating equipment includes assembly and disassembly of pneumatic and liquid transmission hoses and motorized cables.

[0016]

SUMMARY OF THE INVENTION The present invention provides for cleaning and coating the interior surface of a cargo hold of a cargo ship to maintain the functionality of conventional methods and apparatus, as well as the disadvantages associated with: The aim is to overcome the shortcomings.
That is, the time, costs, and risks involved in assembling and removing the uprights and plates, and the dangers of scaffolding workers in the cargo hold, time, costs, and during transport of the coating equipment to access the objects being coated. The danger of workers involved in the coating work of those who have to climb the scaffold, the time and cost of assembling and hooking up cleaning and coating equipment, including hoses and electric cables,
In some cases, the cost of preparing, handling, and disposing of mineral friction materials, and, on the other hand, is easy to use and fit in cargo compartments that can be manufactured and used, and vary in size and shape Providing methods and systems that are

[0017]

SUMMARY OF THE INVENTION An onboard apparatus for cleaning and coating the surface of a cargo hold of a cargo ship includes four main parts, a vertically movable tower (for example, as the equipment descends). Traveling beam that allows it to move to the four corners of the cargo compartment
A vertical trolley that allows workers to reach all the stairs in the enclosure with their equipment, and a horizontal trolley that allows workers to have maximum access to the wall surface And cleaning and coating support equipment. For reference, this device
It can be lifted and lowered into the cargo compartment, with the maximum of the two parts, and these largest parts have a bottom (the bottom of a vertical tower, a walking beam, necessary for cleaning and coating) And the upper part (including the upper vertical tower, the vertical trolley, the height of which can be changed, the vertical trolley, the extension, etc.) Includes a horizontal trolley of variable length, a vertical trolley hoist mechanism, a horizontal trolley extension mechanism, and an upper portion of the distribution system with connectors). The top portion can be mounted on the bottom portion. The travel path of the horizontal trolley surface extends in all directions so that work can be performed simultaneously from at least two sides towards each of the four positions of the base on the bottom of the receiving part. For cleaning and coating, an automated friction blasting device and a spraying device for coating are provided for moving horizontally along a horizontal trolley, for example, each of the four faces of a safety rail.

The principles of the present invention will be described with reference to the accompanying drawings, in which preferred embodiments are shown. The features depicted in the accompanying drawings are intended to be exemplary rather than limiting of the aspects of the invention as defined in the following claims.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS In the accompanying drawings, a cargo ship 10 is schematically shown, partly including a wall defining a cargo compartment 12. FIG. In the specific example shown, the deck 14
(Bottom wall) is provided by the bottom of the hull. The bottom of the hull, in the case of a double hull, is the inner hull, one side wall 16 is provided by the hull, and the opposite side wall 18 is the opposite hull or longitudinal direction. The other set of opposing side walls 20 provided by the partition walls of the upper wall 22 is provided by two successive transverse partitions.
Is provided by the lower part of a removable movable hatch cover or set of hatch covers for the receptacle. It is these walls 14-22 that will become the inner wall 24 of the housing 12 and will be cleaned and coated.

The inboard device 26 for cleaning and coating the hull surface 24 has a sufficiently small horizontal cross-sectional profile so that it can be lowered inward past the smallest hatch and used. It is raised from the smallest receiving surface, but the horizontal cross-section and deployability from which the worker begins to work is sufficiently large that the device 26 can move the device all the way up to four times with no more than four movements. On the inner wall (ie
(The four corners of the compartment) can be reached. In other words, the width (including the expandability) is preferably
The depth (including deployability) is preferably slightly greater than half the size of the port side, starboard side of the largest width receptacle in which the device is used, preferably of the maximum length in which the device is used. It is slightly larger than half of the longitudinal housing (length from bow to stern). The height (including the interchangeability of the tower section) is preferably sufficient to allow workers to reach the upper edge of the side wall for cleaning and coating the underside of the hatch cover if desired. Large and yet short enough so that the hatch cover can be closed as cleaning and coating progresses to reduce the spatial space for cleaning and coating operations, thereby improving the quality of management. .

The device 25 has four main parts:
A vertical tower 28 with a traveling beam or power truck 30 at its base, a vertical trolley 32 supported on the vertical tower surface and capable of ascending and descending to a desired height on the vertical tower surface and stopping, a vertical trolley surface supported on the vertical trolley surface, Takes position and turns in two directions (typically full on port and starboard, but if the entire device is rotated 90 degrees about a vertical axis in the Instead of the direction change of the bow and stern direction)
Horizontal trolley 34 and cleaning, coating, worker breathing, power supply and maintenance system 3
6 is included.

The vertical tower 28 is preferably bolted, welded or otherwise formed into two or more modules that are connected one on top of the other (to perform work in a housing of varying height). It has four sides assembled from steel members connected in a manner.

The vertical tower is preferably also planar,
It is also rectangular when viewed from the front, for example, having a height of 13 to 19 meters (from the bow to the stern), a width of 8 to 12 meters and a depth of 3 meters. 40-60 feet, 25-35 feet wide,
10 feet deep.

The vertical tower is supported at its base, that is, the legs of the tower are such that the tower (and thus the entire device 26) is turned horizontally in at least two mutually perpendicular directions. Provided by the structure. In a preferred embodiment, these structures are conventional traveling beams 30.

Also near the vertical tower 28 or its base (ie, the lower area if the tower is provided as a stackable module), typically a motorized distribution system, a reservoir for frictional sand supply, recirculation A complete supply and maintenance system 36 including a system, friction blast and hotting agent supply pots, paint mixing station, air compressor, breathing air, friction sand, and paint is provided. The power supply cable and distribution pipe
It extends from the supply and maintenance system 36 to the vicinity of the device 26 where work is required. In the example where the tower is constructed in a modular section, the supply cables and distribution lines preferably include connectors that can be easily configured and mounted remotely from the interface of the module.
The module is then formed into a mechanical connector on each tower frame element (e.g., an auxiliary taper pin and umbrella socket) that is easily mounted vertically and easily removed vertically. In order to further ensure that the vertical trolley rises to a relatively high position when the vertical trolley is raised to a relatively high position, the ascent and release of the stack, as well as the ascent and descent, are easily achieved. The locking of the frame elements of each of the module towers together is achieved, with the horizontal trolley extending relatively far and heavy workers and equipment supported on horizontal trolley surfaces relatively far from the vertical tower Is done.

If the vertical tower 28 is provided as a deposition module, the device 26 as a whole comprises a traveling beam 30, a supply and maintenance system 36, a vertical tower comprising a motorized cable and the lower part of the tube. A lower portion 38 including 28 base modules, an upper module (or middle and upper module) of the vertical tower 28, a vertical trolley 32, a hoist mechanism 42 for the vertical trolley 32, a horizontal trolley 34, an extension for the horizontal trolley. -It is presently preferred to provide the upper part 40 which includes the storage mechanism 36, the electric cable and the upper part of the tube.

By way of reference, motorized distribution cables and sand, air and coating tubes pass from the base inside the vertical tower 28 at regular intervals, such as 2.5 meters (every 8 feet). And rises and extends to the top with detachable members (i.e., easily connectable and detachable connectors and disassembly connections).

By way of reference, two stairs extend over the height of vertical towers provided on the bow and stern sides of the tower framework (only shown in the drawing basically). And ends in a safety cage that covers the movement of people climbing the stairs. In any case, the vertical tower
Even if the horizontal trolley is in its limit position and is fully loaded, it is constructed, assembled and maintained to be stable and self-supporting.

The vertical trolley 32 is likewise preferably
A rectangular parallelepiped framework assembled from high strength steel members bolted and / or welded or otherwise connected together, the roller members of which are attached to the corresponding vertical members of the vertical tower 28 It is rotatably engaged. The vertical trolley can descend away from the top of the vertical tower and must stand up. The hoist mechanism 42 includes the supply and maintenance system 3
6 is placed on the base face of the lower part 38 or is conformably supported on the face of the upper end of the vertical tower 28.

The rollers of the vertical trolley 32 include an inner roller and an outer roller, and are mounted on the tower to receive port, starboard and bow, and stern forces experienced as equipment and personnel movement around the equipment. At the four corners, these make up the upper set and the lower set, and the running beam or power truck 30, the hoist 42 and the hoist extension and storage system 44 are activated.

The choice of using compressed air, hydraulic or electric power among the subsystems of the device 26 will vary depending on local preferences, needs and convenience. For example, the motor for the winch of the cable supporting the vertical trolley from the hoist mechanism is an electric motor, a pneumatic motor or a hydraulic motor.

The horizontal trolley 34 is also a rectangular framework assembled from high-strength steel. It includes racks, gears, chains and chains with appropriate means to lock the trolley in the reached position in the event of a rupture of the supply hose (such as a vertical trolley) or other failure of the system to change the position of the trolley. A suitable extension-storage system 44, such as a sprocket, hydraulic or pneumatically operated extension-storage cylinder,
It is supported on the surface of a vertical trolley 32 for bi-directional rolling or sliding in a horizontal plane between a neutral position (FIG. 3) and two extreme positions (one of those shown in FIGS. 1 and 2).

The horizontal trolley 34 looked down from above,
Preferably, it includes a walking path 48 made of expanded metal mesh for an open grid or deck, which extends around the outer periphery of the horizontal trolley. The walking path 48 is bordered by upright safety rails 50.

The metal frame elements of the device 26 need not all be made entirely of the same type of steel alloy. For example, horizontal trolleys are made entirely or partially of high-resistance high-yield-point steel in order to be lighter in weight and durable, because it is closest to where the largest friction work actually takes place On the other hand, the other parts are made of less expensive alloys.

In practice, the cargo storage unit 12 is emptied, and the loosely separated debris is cleaned. First, pre-cleaning is performed using a high-pressure cleaning hose, and then cleaning water is injected.

The device 26 is lowered into the housing and is supported via a running beam or power truck 30 on the deck 14 of the housing. If the operators of the cranes and their observers in the enclosure are particularly skilled, the device 26
The initial positioning of the 4
One of the two corners.

If device 26 is constructed piece by piece by stacking and locking (ie assembled together)
When lifted in the housing, the electric cable and supply /
Various connections on some of the maintenance tubes are connected to each other, and services are provided to the system 36 by lines connected thereto and extending to the hatch. Lighting is provided at a convenient location on the tower 28 surface, allowing the operator to position the work, connect the respiratory equipment, and close the hatch cover as much as possible (power and fluid supply line entrance and exit system 3).
6 if the connection is determined). If necessary, the running beam 30 is actuated to adjust the relative position of the first corner of the housing of the device 26. Blast cleaning of the two coincident side walls at the corner of the receptacle begins. Before or after, or by the same or another worker, perform the work provided by the device 26 to blast the quadrant of the deck 14 and, if desired, the lower quadrant of the hatch cover. During this operation, the worker (s) lowers or raises the vertical trolley 34 (whether the worker begins work at the top, bottom, or bottom, or has gone over the cleaning work more than a quarter circle). Whether to extend or store the horizontal trolley to perform in-place). The worker typically works on two matching side walls at each corner. When this cleaning is completed, the device 26 changes direction toward the other three respective corners using the horizontal position changing means (travel beam 30). In this case, after moving to each corner, the cleaning operation is performed as described above.

After the spent friction has been removed by cleaning and the air quality / temperature / humidity has been adjusted, if necessary, one or more workers move the trolley and again The surface of the corner-related part is spray-coated and from this position on the walking path surface the same is done as described above for cleaning. When this is completed, the injection of volatile organic compounds has been sufficiently weakened in terms of air quality control, the hatch cover has been opened,
Various cables and supply lines are removed from the supply and maintenance system 36 out of the housing, and the device 26 is lifted out of the housing 10 (total or, for example, with two parts of a modular). , Lowered into another container where it waits for the next cleaning and coating operation.

Particularly in the case of a long and wide storage section, cleaning,
In order to perform the re-cleaning and the entire coating operation, the apparatus must be moved to four or more positions (for example, two or four positions).
6 or 8 including one intermediate position of each of the two positions
One position).

The device 26 can be used to perform other tasks other than blast cleaning or coating, such as high pressure cleaning or inspection. It is also possible for the device 26 to perform only one task, namely cleaning but not coating, or vice versa, only in special cases in special accommodation rooms.

When the worker using the device 26
8 to use, especially to reach far
It is also possible to match one or more horizontal extensions to the horizontal trolley.

FIGS. 4 and 5 and FIGS. 6 and 7 each show a device 26 comprising a ventilation system and a variant of said ventilation system.

Referring to FIGS. 4 and 5, the ventilation system 52, which is supported by the vertical tower 28 and is operated by the supply and maintenance system 36, and performs operations, includes a vertical duct provided at the upper end of the vertical tower 28. The vertical duct 54 includes a dome cap 58 which, in this first embodiment, is located no higher than the top of the tower 28 and surrounds a dust filter (not shown) for inlet air. It has an air introduction part 56 shielded from above. The dust filter can be removed for cleaning, and if it is consumable, can be cleaned elsewhere than on site, or can be cleaned on site, it can be removed for replacement purposes.

The duct 54 has an air outlet 6 at its lower end.
0, the air outlet 60 is covered by a screen to prevent large objects from entering or leaving it. The air outlet 60 is preferably located near the vertical tower 28 but above the base, eg, spaced from the supply and maintenance system 36.

Between the air inlet 56 and the outlet 60, there is a fan 62 operated by a motor 64 interposed in the duct 54.
And is drawn into the duct 54 and blown out from the lead-out section 60.

The motor 64 is connected to the supply and maintenance system 36.
Operated by power from

Workers can rely on the ventilation system 52 to supply air from outside to the receptacle (ie, by partially opening the hatch cover), but at least friction blasting and spray coating can be performed. In the meantime, it is recommended that workers in the enclosure wear ventilation clothing, respirators and other air supply and filtration units. Ventilation system 52 prevents dust from strong airflows from degrading the operator's view, aids in drying / curing the sprayed coating layer, and has a beneficial effect on temperature and humidity within the enclosure. Make it possible. The ventilation systems shown in FIGS. 6 and 7 are almost the same as those shown in FIGS. 4 and 5, except that the cap 58 with a dome is attached to the rotating part of the duct 54. The extension part 66 is configured such that the introduction part 56 is
2, so that the lateral offset by the pivoting extension is such that the ducts caused thereby are not obstructed by the area of the hatch. FIG. 7 shows a moving range and an installation range of the rotation extending portion.

Due to the severity of the working environment and the requirements of locally applicable laws or regulations, or the lack of personnel during cleaning and coating, at least some of the cleaning and / or coating operations are performed. It is desirable to use an automated working device that can be controlled from a workstation located inside or outside the housing.

Referring to FIGS. 8-12, the use of the automatic cleaning and painting apparatus will be described.

8-12, the horizontal trolley 34, eg, safety rail 50, is positioned so that the set of horizontal rails 68 extend completely from side to side along the sides.
Attached to. In practice, it is preferred that four such sets of rails 68 be provided, one set on each side of the horizontal trolley. Each side rail is a respective part of the rail system that extends around each corner, and the automated work equipment can also go from one corner to the other, with four sets of well-defined A set of rails is provided. A currently less preferred alternative is to provide only one or two sets of rails. In this case, each set is easily mounted and dismounted from the horizontal platform (by a crane aid or by an operator when the vertical trolley 32 is installed at its lowest position). In this latter example, a savings in invested capital is possible, but at the expense of the time and effort of moving the rail set from side to side of the horizontal trolley. For reference, each side is provided with a set of rails as indicated at 68.

8 and 9, the device 26 is mounted on the rail 6
8 is shown as an automatic blasting system by including an automatic blasting machine 70 mounted on it. actually,
Containment unit 2 that meets at one corner during cleaning work
4 and the two sides on which work is performed are equipped with automatic blasting machines 70 (even if one is not enough, the rails are bent at each corner so that one machine 70 Clean the surface).

Each blasting machine 70 is an impeller or sprayer 72 which is arranged opposite the surface 24 of the housing and injects frictional sand (such as a steel shot) through an opening in the housing facing outwards; It includes a mechanism 74 (such as a motor-driven gear that meshes with the rail surface or a motor-driven rubber wheel that frictionally engages the rail) to push or pull the machine along the rail 68. The motor is hydraulically or electrically driven and is operated via a cable (not shown) from the supply and maintenance system 36 at the base.

In the preferred embodiment, the friction agent used is a steel shot, and the spent steel shot falls with the residue onto the floor of the housing of the equipment 72 where it returns (not shown). It is collected by the line and sent to a playback station (located outside the base 36 or enclosure). At the regeneration station, for example, the mixed material is sorted to determine whether it is iron magnetic particles in size and shape, and the reusable friction sand is sent to a supply and maintenance system for reuse by a blasting device.

Standard techniques for remote operation of the friction device include traversing the friction device along the rails, raising and lowering the vertical trolley, extending and retracting the horizontal elevator, and installing the device 26 in the housing. The change of direction along the deck is effected, for example, by means of a control panel connected by cables or a wireless communication receiver connected to the supply and maintenance system 36.

The cleaning of the deck and the lower side of the upper surface is performed as shown in FIGS.
If the equipment 72 is oriented (eg, by pivoting, reloading) and is not sensitive to reaching these surfaces, as described above with respect to the embodiment of Performed by

Upon completion of the cleaning operation (for the container that is to be cleaned and coated), each device 72
Travels to the outer end of each of the sets of rails 68 where they are parked or manually moved off track (e.g., removed or aligned with the corner where work is currently being performed). Not moved to another pair of rails).

If following cleaning, or if cleaning is not required or otherwise completed, the coating machine 76 will operate on a rail (one of a set of two or more rails). Attached to the set.

The coating machine also includes a spray head and rail traversing mechanism 80 connected by equipment 78 (eg, a supply hose or hose (not shown) connected to the support and maintenance system 36).

In both the cleaning and coating examples,
Each device traverses each side of the horizontal trolley and receives trolley 3
2 operates to occupy a new position in which to operate the equipment, and the horizontal trolley reaches the corner or otherwise moves further beyond the corner than to reach the predetermined position of the device 26. Actuated to reach The device 26 is then rearranged using the actuation circulator 30 so as to be generally continuously disposed in the relevant vicinity of each of the four corners of the housing.

Details on how to deposit and undeploy tower modules can be found in March 2, 1995.
One day is understood by reference to US Patent No. 5,398,632 to Goldnach et al. The device for projecting and storing the horizontal trolley is similar to the description for projecting and storing the working platform in relation to FIGS. The cleaning and coating machine is similar to that described in connection with FIGS. 33-41 and 49 of that patent. The vertical trolley is operated in a manner similar to that described with respect to FIGS. 7 and 8 of said patent specification, and the supply and maintenance system is configured similar to the apparatus described with respect to FIGS. 17 and 18 of said patent specification. Activated. The capture, sorting and recycling of consumed sand is described in US Pat. No. 5,353,729 issued to Goldnach et al. On Oct. 11, 1994, and in US Pat.
It is performed as disclosed in US Pat. No. 5,540,172, issued Jul. 30, 996, which is hereby incorporated by reference. This device is moved by the device 30 in a manner similar to the movement of the device described in the latter US patent.

An onboard device for cleaning and coating a cargo container of a cargo ship as described above has been described.
It will now be apparent to have the subject matter summarized in "Means for Solving the Problems" herein. It can be modified to some extent without departing from the principles outlined and described in this specification, but the present invention covers all these within the spirit and scope of the appended claims. It should be understood that modifications are included.

[Brief description of the drawings]

FIG. 1 is a front elevational view of an inboard device for cleaning and painting the surface of a cargo container of a cargo ship, the device being shown supported in the container with a vertical trolley raised to about half the height. And the horizontal trolley extends maximally to both sides of the hull.

FIG. 2 is a schematic top plan view of the structure shown in FIG.

FIG. 3 is a schematic top plan view similar to FIG. 3, but showing a horizontal trolley located in the center.

FIG. 4 is a side elevational view of an apparatus provided with a first specific example of the ventilation system.

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a front elevational view of a modified example in which the ventilation system is provided with an introduction portion that can stand and rotate.

FIG. 7 is a top plan view of an apparatus including the ventilation system of FIG. 6;

FIG. 8 is a perspective view of the apparatus, as viewed from one corner, with the horizontal trolley extended to the right forward limit and shown with an automatic blasting machine for cleaning.

FIG. 9 is a side elevational view of the apparatus of FIG. 8 shown supported within a housing.

FIG. 10 is a perspective view similar to FIG. 8, but showing an apparatus with an automatic coating machine.

FIG. 11 is an enlarged view of a perspective view of a portion of the apparatus of FIG.

FIG. 12 is a side elevational view similar to FIG. 9, but as in FIGS. 10 and 11, an apparatus with an automatic coating machine is shown.

[Explanation of symbols]

Reference numeral 10: Cargo ship, 12: Cargo storage unit, 14: Deck wall, 16
... hull side wall, 18 ... longitudinal partition wall, 22 ... upper wall, 24
... inner surface, 26 ... device, 28 ... vertical tower, 30 ... traveling beam, 32 ... vertical trolley, 34 ... horizontal trolley, 3
6 ... supply and maintenance system, 38 ... lower part, 40 ... upper part, 4
2: Hoist mechanism, 44: Extension and storage system, 46:
Roller, 48 walking path, 50 safety rail, 52
Ventilation system, 54 ... vertical duct, 56 ... air introduction part,
58: cap with dome, 60: air outlet, 62 ...
Fan, 64 motor, 66 rotating extension, 68 horizontal rail, 70 blast machine, 72 equipment, 74 traverse mechanism, 76 coating machine, 78 coating equipment, 80 traverse mechanism.

Claims (18)

[Claims] 1. An apparatus for performing work on an inner wall surface of a cargo storage section of a cargo ship, comprising: (a) (b) (c) (d) (e) (f): (a) a framework having a vertical tower (28) with a base, (b) supporting the tower base and side walls (16, 18, 20) of the receiving part
Are provided for deflecting the tower in each of two substantially horizontal orthogonal directions of the receiving part (12) to position the tower near each of the four corners meeting each other. (C) mounted on a vertical tower (28), positioned at a plurality of selected vertical heights, and maintained in a vertical A vertical trolley (32) mounted on the vertical trolley and having a first extension limit in one direction toward one side of the vertical tower, and a second extension trolley toward the other side of the vertical tower. A horizontal trolley (34) movable in both horizontal directions to position and maintain a plurality of selected horizontal positions with respect to the vertical tower, including an extension limit; Supply system (36) A system, the system is provided in said vertical tower (28), (f)
One worker walking path (48) provided on the horizontal trolley (34) surface, 2. The vertical tower (28) includes at least one lower module and an upper module that can be removably stacked, and the device comprises two parts (3
8,40), one of which is the lower module,
The apparatus of claim 1 including the base and the system, the other comprising the upper module and the vertical and horizontal trolleys. 3. The device according to claim 1, wherein the deflectable support structure is formed by a traveling beam. 4. The apparatus according to claim 2, wherein the auxiliary means of the supply system includes a device for providing air for breathing the worker. 5. Apparatus according to claim 1, wherein the auxiliary means of the supply system includes a device for operating a friction sand blasting device. 6. The apparatus according to claim 1, wherein the auxiliary means of the supply system includes a device for operating a coating agent spraying device. 7. The horizontal trolley (34) is substantially rectangular in plan view, and the worker's walking path (48) extends around four surfaces on the outer periphery of the horizontal trolley (34). The device according to claim. 8. The apparatus of claim 1, further comprising: (a) (b) (c): (A) has a ventilation duct (54) supported by the vertical tower, the ventilation duct, the air introduction part (56) provided at the upper end thereof, the air outlet part (60) provided at the lower end thereof
(B) a filter associated with the ventilation duct to filter air drawn into the ventilation duct, (c)
A fan (62) interposed in the duct so that air is drawn into the duct through the introduction portion and discharged from the outlet portion into the cargo storage portion, 9. The duct extends above the vertical tower to position the inlet at any of a plurality of laterally offset positions within a circular movement and placement circle. 9. The apparatus of claim 8, including a laterally offset upper end pivotable about an axis. 10. A method for performing work on an inner wall surface of a cargo storage section of a cargo ship, comprising the following steps (a), (b), (c), (d), and (e). (a) a framework having a vertical tower (28) with a base, and a tower near each of the four corners that support the tower base and where each set of side walls (16, 18, 20) of the housing meets each other. Reversible support structure (30) provided for diverting the tower in each of two substantially horizontal orthogonal directions of the receiving part (12) to position the
A vertical trolley (32) mounted on a vertical tower (28) and positioned at a plurality of selected vertical heights and capable of moving vertically in its plane to maintain this; A plurality of selected ones for the vertical tower, including a first extension limit mounted in one direction toward one side of the vertical tower and a second extension limit toward the other side of the vertical tower. A horizontal trolley (34) movable in both horizontal directions to position and maintain a horizontal position, and a supply system for re-working the wall provided on the vertical tower (28). (36), and an inboard apparatus comprising: a worker walking path (48) provided on the horizontal trolley (34) surface; Descending, (b) from the walking path (48),
Using a feed from the system to work on two inner side walls of the enclosure meeting at a first corner with a device located at a first location on the deck surface; c) moving the device to a second position located on the deck surface by actuating the diversionable support structure (30); (d) moving the deck from a walking path. A device located at said second location on a surface, using feed material supplied from the system, to the two inner side wall surfaces (16, 18, 20) of the receptacle that meet at a second corner. Performing work, (e) lifting the device out of the housing, 11. The method according to claim 10, further comprising the following (f):
The described method. (f) moving the device to the third and fourth positions, respectively, and at the third and fourth corners the inner surfaces (2, 16) of the two side walls (16, 18, 20) of the receiving part (12) respectively;
Before performing step (e) to perform the operation in 4),
Repeating steps (c) and (d) two more times; 12. The operation may include at least one of cleaning the surface and performing coating.
The method of claim 11, comprising: 13. Step (a)-(d) and (f) are performed twice consecutively, first for cleaning and second for coating, before performing step (e). Item 12
The described method. 14. The method of claim 13, wherein said cleaning comprises blasting with friction sand and said coating comprises coating a compound. 15. At least one side of the outer periphery of the horizontal trolley comprises a horizontal rail (68) extending along each side, the apparatus being mounted on the set of rails, While working on said surface, along a set of rails, comprises a remotely controllable working machine provided for performing motor propulsion, said working machine comprising applying friction sand and applying a coating agent. 8. The apparatus of claim 7, comprising one of spraying. 16. An apparatus for performing work on an inner wall surface of a cargo container of a cargo ship comprising the following (a), (b), (c), (d), and (e). (a) a vertical tower (28) with a base, (b) two opposite horizontal towers supporting the tower base and facing the substantially horizontal deck (14) of the receiving part (12). A support structure (30) provided for moving the direction changeable,
(c) a vertical trolley (32) mounted on a vertical tower (28) and occupying each of a plurality of selected vertical heights and being vertically movable to maintain it; A horizontal trolley (34), mounted on and occupying each of a plurality of selected horizontal positions relative to the vertical tower and movable in both horizontal directions to maintain it
Auxiliary means of a supply system (36) provided on said vertical tower for use when performing work on said surface; 17. The horizontal trolley is generally rectangular in plan, and at least one side of the outer periphery of the horizontal trolley comprises a horizontal rail extending along each side, and the apparatus comprises: 17. The apparatus of claim 16, further comprising a remotely controllable work implement mounted on the vehicle and adapted to propel the motor along the rail while performing work on the surface. 18. At least one of the work implements injects steel shots with centrifugal force, collects reflected shots, stores the mixed materials in a sorting housing, and removes at least a portion of the steel shots. 17. Apparatus according to claim 1-16, which is a friction sand working machine suitable for reuse.