FR2488229A1 - - Google Patents

Abstract

Apparatus for unloading bulk material from ships, wherein a vertical beam 2 is rigidly connected at its lower end with a substantially horizontal receiving arm 3 and is arranged in an L-shape; a bucket chain 1 is guided around the vertical beam 2 and the receiving arm 3 so as to ensure a continuous transport without transshipment of the bulk material from the area of the horizontal receiving arm, through the area of the vertical beam, up to an upper tearing end placed in the extension of said beam, a rotating plate 6 or an annular conveyor 5 being arranged horizontally and mounted so as to surround said upper end of the beam concentrically.

Description

The present invention relates to a mobile device for discharging

  ships intended to ensure a continuous release of bulk material, using an endless vertical conveyor mounted on a vertical beam in the form of a bucket mechanism. Such a ship unloading device comprising a vertical bucket transporter is already known from US Pat. No. 3,640,376. However, we are dealing with a conventional bucket transporter which is not

  not designed to have a particular transport capacity

quite large.

  According to German patent 1,556,831, we

  also knows a bucket mechanism forming a transport

  vertical tor for the unloading of ships, in which, when the bucket mechanism is pivoted lower by means of two idler wheels placed at a certain distance one behind the other, a feeler device place between the two idler wheels probing

of the lower strand.

  In addition, according to German patent 2,456,260, an apparatus is known for discharging bulk materials from ships, which uses a scraper chain as a vertical conveyor. In this case, the material to be discharged is essentially pushed during the transport process. In the case of a bulk material sensitive to

  friction, such an arrangement is not suitable.

  The object of the present invention, on the other hand, is to allow, in particular for bulk materials sensitive to friction, such as sulfur, coal, fertilizers or; similar substances, as well as in the case of abrasive materials, which could cause relatively great wear; bucket chains, obtaining a large

  transport capacity while conserving the material to be trans-

  wear and ensure continuous transport without intermediate spills. The invention must thus make it possible to obtain unloading with little dust, that is to say not

polluting for the environment.

  This problem is solved according to the invention in that the vertical beam is rigidly connected by its

  lower end with an essential receiving arm-

  horizontal and is arranged in an L shape, in that a bucket chain is guided around the vertical beam and the receiving arm so as to ensure a continuous transport and without transhipment of the bulk material from the area of the receiving arm horizontal, through the vertical beam area, up to an upper discharge end placed radially in the extension of said beam, and in that there is provided a turntable or an annular conveyor arranged

  horizontally and mounted so as to surround concentrically

  said upper end of the beam.

  In an advantageous variant of the present invention, the bucket chain is equipped with an envelope resiliently mounted in the area of the entry of said

  chain in the horizontal receiving arm.

  In addition, it has been found advantageous that, in the L-shaped conveyor, the outer strand of the bucket chain is deflected around a pair of sprockets in an area between the horizontal receiving arm.

and the vertical beam.

  According to another advantageous embodiment of the invention, the L-shaped conveyor is arranged so

  to be able to turn in all directions.

  Other advantages and characteristics of the invention will be highlighted in the following of the

  description, given by way of nonlimiting example, in

  reference to the accompanying drawings in which

  fig. 1 is a side view of the device according to the invention.

  tion, and fig. 2 is a plan view, corresponding to a section

  made along line A-A of fig. 1.

  The vertical beam 2 of the device is rigidly connected by its lower end to a receiving arm 3 oriented essentially horizontally and it is arranged in an L shape. Around this vertical beam 2 and the receiving arm 3 is guided a chain of buckets 1 2488229 i fai:. Part of a vertical conveyor arranged in the form of a bucket mechanism, so as to obtain a continuous transport and free of transhipments of the bulk material

  from the area of the horizontal receiving arm 3, via the

  middle of the vertical beam 2 area, up to a

  upper discharge end 4 which is arranged radial-

  lying in the extension of said beam, the transport of the material then taking place via a turntable 6, 6a or an annular conveyor 5,

  arranged horizontally and mounted so as to surround concentrated

  tracing said upper end of the beam.

  The bucket chain 1 is provided with a casing 9 resiliently mounted in the area of the entrance of said chain.

  chain in the horizontal receiving arm 3.

  In the L-shaped conveyor, the outer strand of the bucket chain 1 is returned around a pair of sprockets 10 in an area between the arm

  horizontal receiver 3 and the vertical beam 2.

  For this purpose, the L-shaped conveyor is arranged

  so that you can turn in all directions.

  The turntable 6 or the annular conveyor 5 is mounted in a stationary bucket 7 from which the material is transferred onto a conveyor belt

8 placed downstream.

  The operating mode is as follows: the bulk material is recovered, from the top, over the entire extent of the ship's hold by the horizontal receiving arm 3 - which is different from the known embodiments where the receiving elements penetrate to the way of drills in bulk material. The buckets receive the bulk material. I find it in the horizontal reception zone essentially without friction and they transport this material, also without friction, to the discharge zone on the annular conveyor 5 or the plate.

turning 6.

  Thus the buckets transport the material in a vertical direction. In the column formed around the bucket mechanism, there is essentially no friction 2488229 i. We are therefore guaranteed transport in relatively very good conditions, also for

  delicate bulk materials to be transported.

2488229 i

Claims (4)

  1. Mobile apparatus for unloading ships from; intended to ensure a continuous discharge of bulk materials, using an endless vertical conveyor mounted: ur a vertical beam in the form of a bucket mechanism, characterized in that the vertical beam (2) is rigidly connected by its lower end with an essentially horizontal receiving arm (3) and is arranged in the shape of an L, in that a chain of buckets (1) is   guided around the vertical beam (2) and the receiving arm   tor (3) so as to ensure a continuous transport without tran: sbordement of the bulk material from the area of the horizontal receiving arm, via the area of the vertical beam, to an upper end of unloading placed radially in the extension of said beam, and in that there is provided a turntable (6) or an annular conveyor (5) arranged horizontally   and mounted so as to concentrically surround said end mit 'upper beam.   2. Unloading apparatus for ships according to claim 1, characterized in that the bucket chain (1) e: t provided with a casing (3) elastically mounted in the area of the entry of said chain in the arm horizontal receiver (3).   3. Apparatus for unloading ships according to one of the claims: ation; 1 or 2, characterized in that, dan.3 the L-shaped conveyor, the outer strand of the bucket chain- (1) :; ubit a reference around a pair of sprockets dan. the area between the horizontal receiving arm (3) and the vertical beam (2).   4. Unloading apparatus for ships according to any one of claims 1 to 3, characterized in that the L-shaped conveyor is arranged so as to be able turn in all directions.