FI97880C - Continuously operating loading device for piece goods - Google Patents

Description

! 97880

Continuous bulk carrier

The invention relates to a continuously transportable bulk loading device having a goods receiving member rotatable about a vertical axis 5 and a helical conveyor (first vertical conveyor) rotating about this vertical axis enclosed and extended therein, which conveys another vertical conveyor) as an approximately horizontal free-flying jet.

At the lower end of the loading device there is a goods receiving member in the form of a gripping head or a bucket wheel rotating about a vertical axis, which is known per se and has one or more buckets or cutting strips. This goods receiving member delivers the goods to be transported radially inwards to the first vertical conveyor, the lower area of which is surrounded by a grab bucket or a bucket wheel. This first vertical conveyor is a spiral conveyor.

This first conveyor preferably consists of a two-threaded helical conveyor and a tube closely surrounding it. At a correspondingly high speed of the helical conveyor, bulk material penetrated into the threads of the helix is pressed against the inner wall of the tube. Due to the friction against the inner wall of the tube, the loose goods are pushed upwards against the rise of the helix.

. ·. : As soon as the bulk is still at the top of the pipe • · «when it reaches the opening there, there is no support

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against the central force, and the bulk leaves the helix 30 in the tangential direction.

The object of the invention consists in creating a device for delivering bulk goods from a first helical conveyor with a goods receiving member (the first vertical conveyor) to a second belt conveyor with goods receiving chambers (the second vertical conveyor). 2 97880 tin), in which case the second vertical conveyor must be filled as efficiently as possible.

This object is solved by a loading device according to the invention, which is characterized by what is set forth in the characterizing part of claim 1. The opening in the upper part of the first helical conveyor is formed so that the bulk of the first helical conveyor is centrifuged in a directed and complete manner in the area of the upwardly moving chambers of the second helical conveyor.

With the combination according to the invention of the first vertical conveyor with the goods receiving member formed integrally with it, with the second vertical conveyor formed as a belt pocket conveyor, substantial weight savings can be achieved in connection with the continuous conveyor structure 15. transport volume in relation to the weight of the improved device.

20 Inside the spiral tube, the bulk has a smaller horizontal velocity component and a higher circumferential velocity. Accordingly, when the opening is reached, it comes out at a slightly upward total speed (about 10 *).

25 Bulk which, when passing through the opening ·; ··· has not yet reached this, is still pressed into the tube *. . * against the inner wall, and it once again runs in a helical line • · against the inner wall of the pipe and then comes out of the upper part of the opening.

. 30 Through the width and position of the opening, it is possible to • • · · determine the width of the slightly fan-shaped bulk jet and the • · · * · [* outlet direction. The height of the opening must be chosen at least so that all bulk can leave the helix.

An application example of the invention is described. 35 in more detail using schematic drawings.

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Fig. 1 shows a partial view of the goods receiving member and the lower part of the first vertical conveyor in an example of a ship unloading device for continuous transport.

Figure 2 shows the delivery of bulk goods from the first vertical conveyor to the second vertical conveyor in horizontal section.

Figure 3 shows the receiving table of the second vertical conveyor of the goods as well as the bulk particles in a constant coordinate system at three short consecutive times.

Figure 4 shows the direction of flight of bulk particles in a coordinate system moved with a second vertical conveyor.

The basic arrangement of the emptying device 15 for a continuously transported ship for bulk goods is required to be known. The drawing of the entire emptying device can therefore be omitted.

In connection with the so-called emptying nozzle of the ship's emptying device, the first vertical conveyor 1 20 is formed as a helical conveyor. This helical conveyor feeds bulk material to a goods receiving member 1a, for example a digging head, rotating about its vertical axis.

The bulk material is moved radially inwards from the digging head 1a to the first vertical conveyor. A helical shaft 4 is preferably arranged in the helical tube 3 of the first »(» · ·; ** · vertical conveyor 1, which preferably has two screw threads.

• ·, ···. The drive of the helical shaft 4 is arranged above the transmission channel 6 * 4 to the second vertical conveyor 2.

. According to Fig. 1, the bulk material 13 leaves the first vertical conveyor 1 through the outlet opening 5 »* * '· * * formed there in the upper part of the spiral conveyor 3 and is centrifuged substantially tangentially through the transfer channel 6 to the receiving chamber 35 of the second vertical conveyor 2. 8 areas.

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The second vertical conveyor 2 consists of a flat carrier belt 11. The carrier belt 11 may be formed, for example, of rubber or the like with recessed, traction-absorbing parts such as steel or synthetic ropes, or of a fabric particularly tensile in the longitudinal direction of the belt. Attached to the carrier belt 11 at regular distances transversely to the direction of movement are the goods receiving chamber bases 8, which together with the side walls 9 of the goods receiving chamber form the goods receiving chambers. The goods receiving bases 8, which may be formed interchangeable (not shown), are suitably formed to be protected against wear.

The side walls 9 of the goods receiving chamber may have known corrugated edges or each base 8 may have surfaces attached to the side which are not connected to the carrier belt 11 and which give it the necessary freedom of movement during pivoting rollers or other arcuates.

The bulk material is centrifuged from the upper side opening 20 of the first vertical conveyor 1 in an approximately horizontal free flight to the receiving chambers of the second vertical conveyor 2 in free flight.

The bulk particles located on the outer diameter of the threads of the screw ··· start from it in the tangential direction. Particles that are farther • · inside and rest on the outer particles migrate, • *::: - as soon as the outer particles fly out - with a screw thread radially outwards. Because these particles. when leaving a screw thread, increase its circumferential speed ···. ·; ·. 30 s have also received a radial velocity component, • · · those bulk particles located • · '··· * first leave more inside the screw, at an angle, • corresponding to the tangent of the imaginary circle, whereby this circle has a somewhat smaller diameter than the screw -35 pipe diameter.

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In order to prevent the bulk particles 12 from penetrating into the area of the ascending chambers without hindrance, the goods receiving chambers 8 on the side opposite the conveyor belt 11 are inclined upwards at an angle 5 obtained by the geometric summation of the free vectors 13 and the second vertical conveyor. For this reason, the particles of the bulk jet 13 - viewed with respect to the bases 8 of the goods receiving chamber of the vertical conveyor 2 - fly parallel to these surfaces to the inlet area of the goods receiving chambers 10.

Hereinafter, viewed in the direction of the traction belt 11, the upper parts of the bases 8 of the goods receiving chambers are increasingly curved upwards. Here, the bulk particles 12 fly at an oblique angle to the innermost part of the chamber. The flight path is laterally bounded by the intersection points 10 obtained from the forced tangential direction. The bulk particles 12 are centrifuged in their path upwards in the direction of the conveyor belt 11, and their horizontal velocity components are limited to zero due to the friction of the bases 8 20 of the goods receiving chambers.

The filling of one chamber of the second vertical conveyor 2 can preferably be clarified by Fig. 3: This figure shows the movement of the bottom 8 of the goods receiving chamber of the second vertical conveyor and the particles of the bulk beam in the stationary coordinate system.

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Simply put, it is assumed that the bulk particles 12 • · ·: fly in horizontal lines and that the velocities of the bulk particles 12 and the vertical conveyor 2 are equal.

. The bottom 8 of the goods receiving chamber is therefore a mass of 45 angles · · · 30 with respect to the horizontal. If the speed of the vertical conveyor 2 were higher than the flight speed of the bulk particles 12, then the bottoms 8 of these cargo receiving chambers would be fitted at a steeper angle and vice versa.

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At point A, both bulk particles 12 are located at the inlet in the region of the bottoms 8 of the ascending goods receiving chambers.

At point B, both bulk particles 12 have traveled a distance Sj. To the same extent in this example, the bottom 8 of the goods receiving chamber has moved upwards. The bulk particles 12 still have the same distance from the lower surface of the base 8 of the goods receiving chambers, because the base 8 of the goods receiving chambers in this first part was at an angle formed as a result of the velocity of the bulk particles and the speed of the vertical conveyor 2. After that, the upper surface of the bottom 8 of the goods receiving chambers changes, it becomes smoother. The bottom 8 of the goods receiving chambers is formed in an upwardly curved arc. After point B, the bottom 8 of the goods receiving chambers reaches the upper bulk particle and accelerates it upwards, while the particle could continue to fly with the horizontal velocity component until now. Due to the increased pressure 20 coming against the base 8 of the goods receiving chambers, the horizontal velocity components are braked, and even more so the upward curvature of the base 8 of the goods receiving chambers is made stronger.

'The area of upward curvature must be made wear-resistant. This can be done, for example, by '· · 25 a) the entire base 8 of the goods receiving chambers is formed of highly abrasion-resistant rubber, • «· ::: (b) the base 8 of the goods receiving chambers is formed of another wear-resistant material, eg stainless steel. c) the bottom 8 of the goods receiving chambers is • formed • of rubber and upwards from the area of curvature of the steel sheet obtained by vulcanization.

Finally, Figure 4 shows the same filling event in a coordinate system moving with a vertical conveyor: Carbon lit * · 7 97880. This description is particularly suitable for determining the shape of the bases 8 of the goods receiving chambers.

It is conceivable that Figure 3 would be photographed with a camera at the bottom. When the camera lens shutter 5 is open, the flash fires three times. Figure 4 would be created with the camera attached to the second vertical conveyor and the lens shutter open as long as one of the goods receiving chambers of the carrier belt of the second vertical conveyor is filled.

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Claims (4)

A continuous conveying loading device for lost goods, which comprises a goods pickup means and a connected one, about a vertical axis swinging worm conveyor (first vertical conveyor), which discharges lost goods in a horizontal, free-flying beam into an upright position on the load. The conveyor device is provided with a belt conveyor (second vertical conveyor) provided with a vertically arranged goods pick-up chamber, characterized in that a transition channel (6) is arranged between the exit opening (5) in the screw pipe (3) of the first vertical conveyor (1) and the entrance opening. 7) in the second vertical conveyor 15 (2), which transition channel has rectangular cross section at unchanged height, that the width of the transition channel (6) and the entrance opening (7) is defined by the keys of the worm tube (3) and an imaginary circle (14), diameter is 80 - 90% of the inner diameter of the worm tube (3), that of the other vertical The cargo picking chamber of the carrier (2): '(8, 9) has a width which is determined by the distance between the hits'' (10) of the keys and the deepest part of the chamber. 2. Continuously transporting loading means: device for lost good according to claim 1, characterized in that the second vertical conveyor (2) consists of a flat guide controlled by means of a longitudinal and transverse reinforcement, ·, Rubber or rubber-like carrier strips (11), which exhibit at regular intervals freight pick-up chamber bottoms «· · *. 30 (8) and arranged on the side, at right angles to the surface walls (9) of the carrier belt for the cargo picking chambers. Continuous conveying loading device for loose goods according to claims 1 and 2, characterized in that the goods picking chamber bottoms (8) in the area of the inlet of the loose goods are inclined at an angle corresponding to the direction of movement of the freight particles (12). a coordinate system offset with the second vertical conveyor (2), and that the surface of the goods pickup chamber bottoms (8), during its passage towards the deepest part of the goods pickup chamber, is curved upwards. Continuous conveying loading device for loose goods according to claim 3, characterized in that a wear protection is provided in the area for the curvature of curvature in the bottoms of the goods pickup chambers (8). • «• · · · · · · · · · · · · · · · · · · · · · · · · · · 1 · · · · · · · · · · · ·