RU2051077C1 - Dust suppression installation for ship holds - Google Patents

Abstract

FIELD: handling of bulk materials; dust suppression facilities. SUBSTANCE: installation has frame 1 with deep well pump 2 and filter 3 secured on drum 4 mounted on ends of brackets 5 with rocking drive 8. Mounted at both sides of frame 1 are two brackets 7 with drums 8 rotating around vertical axle. Reservoir 9 with mixer 10, metering pump 11 and neck 12 with cover is arranged in upper part of frame. Atomizers 13 secured to screw clamps 14 are arranged on hatch coamings and are connected by means of pipelines 15 with drums 6. Electric control panel 16 is mounted on frame. EFFECT: protection of environment. 3 dwg

Description

 The invention relates to devices and systems that provide environmentally friendly conditions for reloading operations with bulk cargo in the holds of ships.

 Known mechanized installation for applying protective coatings on the surface of bulk cargo containing a stationary frame to which are attached containers, compressor, nozzles and pipelines.

 The disadvantage of this installation is cumbersome, stationary, lack of versatility in use on various vehicles.

 Also known installation for suppressing dust in the holds of ships, containing a frame, a container for liquid, sprayers, a deep pump with a flexible pipe, drums for a flexible pipe.

 The disadvantage of the system is its complexity, cumbersomeness, high cost in manufacturing, installation and operation. In addition, it cannot cover the hatch space with special solutions that strengthen the surface of the cargo in the hold.

 This goal is achieved due to the fact that the installation is equipped with a mixer with its own flexible pipelines and a metering pump, one drum is rotatable from the electric drive and mounted on the frame using brackets that can swing from the electric drive in a vertical longitudinal plane around stationary horizontal axes, and a deep pump suspended on a rotary drum by means of a cable wound on the latter together with the flexible conduit of this pump and its electric drive cable, and two other drums they are mounted on the frame by means of brackets that can be rotated from a manual drive in a horizontal plane around stationary vertical axes, the nozzles being fixed in the dust suppression zone by means of clamps and connected to the mixer flexible pipelines wound on the two mentioned drums.

 Figure 1 shows a General side view of the installation; figure 2 is a top view; figure 3 hydraulic installation.

 The installation comprises a frame 1, which can be moved with a lifting crane using eyes, an in-depth pump 2 with a mechanical filter 3. The pump is attached via a cable to an electric drive drum 4, to which a pipeline and a cable going to the pump 2 are also attached. The drum 4 is fixed at the ends brackets 5 with a drive of their swing around horizontal axes by an electric drive 6 with a chain transmission. On the side, on both sides of the body, on the vertical axes with the possibility of rotation using a manual drive, two brackets 7 with drums are fixed 8. In the upper part of the frame 1 there is a liquid container 9 with a mixer 10, a metering pump 11 and with a neck 12 with a cover for filling into the reagent tank. The nebulizers 13 attached to the clamps 14 are placed on the coamings of the hatch and connected by pipelines 15 to each other and to the drum casings 8. On the frame 1, an electric panel 16 is also fixed to the control panel, connected by means of a power cable to the ship's electric network.

 Installation works as follows.

 Before starting work, the crane lowers the installation on the deck of the vessel using the eyes in the upper part of the frame 1. After this, the power cable is connected to the ship's or shore network, the electrical panel 16 with the control panel is turned on, the unit is ready to work. Then, using the electric drive 6, the outward movement from the frame 1 of the drum 4 on the bracket 5 is carried out to its extreme position (see figure 1). After that, the pump 2 is lowered down with the filter 3 on the cable. On the drum there are three sections separated by flanges for the sleeve (pipeline), for the cable holding the pump, for the cable that supplies power to the pump. A pump with a filter goes deep into the water at the side of the vessel.

 Then, by turning on the pump 2, opening the electrically operated valves 17, 18, closing the valve 19, water is pumped through the filters 20.21 into the tank 9 (see Fig. 3), until the signal of the upper level sensor 22 is filled through the neck 12 and then filled into the tank reagent (for example, 23, 24) and after closing the filler cap, the mixer 10 and / or the metering pump 11 are turned on with the valve 25 open and the valve 26 closed. The solution is mixed in the container 9.

 Then, the drums 8 on the brackets 7 are turned into positions convenient for stretching the pipelines 15, and the latter are laid along the hatch coaming, and sprayers 13 are attached to them by means of hydraulic sockets 14 on the pipes 14 fixed to the coaming.

 When grabbing or grabbing cargo in the hold, using the control panel in the shield 16, the pump 2 is turned on, while valves 17,19,27,28,26,29 open, valves 18, 25 are closed. supply of overboard water to the mixer, where this stream is mixed with the amount of the reagent solution metered with pump 11. Next, the resulting mixture moves, bypassing drum 8, through pipelines 15 to the nebulizers 13. The surface of the hatch lumen is covered with fine water mist, absorbing dust generated during the operation of the grab in the hold. A mixture of a certain concentration of the reagent in water promotes foaming in the lumen of the hatch and on the surface of the load, which significantly increases the efficiency of dust suppression.

 The installation can work without the use of additional mixtures of reagents, while the tank 9 is empty, the pump 11 is not working, the valves 18, 26 are closed.

 The proposed installation can be used on all types of sea and river vessels, and can be installed both on the deck of the vessel and on the pier, with the supply of pipelines 15 to the vessel through the side. It can also be connected to the ship’s hydraulic network via a hydraulic connection after drum 4, in which case there is no need for pump 2. Fluid flow rate depends on the intensity of dust formation in the hold, the degree of impact of the wind on spray flares, as well as on the intensity of overload. The flow rate is regulated by valves 27,28,30,31 and is estimated by the pressure loss on these valves.

 The installation can also be effectively used during loading and unloading operations performed by continuous transport machines (ship loading, ship unloading).

 The proposed installation can be used in sea and river ports, carrying out loading and unloading of bulk cargoes allowing their moistening, for example, coal and metal ores. It will allow you to effectively solve the problem of environmentally friendly conditions for processing cargo in ports.

Claims (1)

 INSTALLATION FOR SUPPRESSION OF DUST IN VESSELS 'TRACKS, containing a frame, a liquid tank, sprayers, a deep pump with a flexible pipe, drums for a flexible pipe, characterized in that it is equipped with a mixer with its own flexible pipes and a metering pump, one drum is made rotary from the electric drive and mounted on the frame by means of brackets that can swing from the electric drive in a vertical longitudinal plane around stationary horizontal axes, and the deep pump is suspended on a rotary drum However, by means of a cable wound on the latter together with the flexible conduit of this pump and its electric drive cable, the other two drums are fixed to the frame by means of brackets that can be rotated from the manual drive in a horizontal plane around stationary vertical axes, and the nozzles are fixed in the dust suppression zone by clamps and connected to the flexible piping of the mixer, wound on two of these drums.

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