SK141194A3 - Vessel for storage of loose material - Google Patents

Abstract

Device for closing outlet openings on bulk material containers (1), a tightly-sealing closure of the outlet opening being achieved by means of a double cone (13), which closure, in the open condition, releases the entire outlet cross-section and is distinguished by low weight. <IMAGE>

Description

The invention relates to a container for storing bulk material.

BACKGROUND OF THE INVENTION

When weighing bulk material in batches, container scales are used. These container scales shall be fitted with a closure at the bottom which keeps the weighing container closed during the addition of the bulk material and opens the drain which it secures when weighing is complete. residual emptying. Rotary valves, flat gate valves or pressure valves are used for this purpose. The swivel flaps have the disadvantage that not all of the bottom opening of the bottom opening is available for discharge, but the drive shaft or the thickness of the damper blade negatively affects the spill element. there are leftovers and the closing element is not: it is completely impermeable. The pressure valves do not open sufficiently because the rubber sleeve loses its ability to reset due to aging. The disadvantage of all three of the said closing elements is their high weight.

Although it would be possible to optimize said types of closures in terms of their weight and sealing function, for example by reducing the permissible deviations of the materials. This is costly and thus would, on the other hand, be in operation.

or using others but in terms of production, it overpriced the equipment, and there should be no problems

DE-OS 35 15 367 discloses a container with a conical closure. This conical closure is designed as a double cone and abuts the sealing element in the closed state. This sealing element is of rubber material and is arranged in the outlet pipe of the container. To open the container and to dispense the material contained in the container, the double cone is pulled up, whereby the double cone must first travel a long closure path until it reaches the interior of the container and releases a larger annular gap there.

A disadvantage of this system is that material may eventually settle on the sealing surfaces in the outlet pipe, since the sealing surfaces lie in a flood of flowing loose material. Soft sealing elements are indispensable in order to allow reliable double-cone closure of the container through material deposition. In addition, the closure is known to be more expensive to manufacture and has a higher construction height.

It is also known that the cone for closing the container is arranged in a downward direction on the outlet opening. The drawback of this system is that the cross-section must again widen under the cone to produce at least an annular gap for draining the contents of the container. This widening of the cross-section requires additional construction costs. In addition, the cone is again a disturbing element in the material flow when opened.

SUMMARY OF THE INVENTION

Thus, the device is higher in order to create an opening or exhibit in particular a small problem of this type which seals the container directly to the container to the spout and thus the narrowest cone region of the sealing surface.

The object of the present invention is to provide a simple, inexpensive closing weight. thus, to improve the rate, and easily with the closure which according to the invention is that the double cone conical closure closes it and thereby the container is formed as a

This closure body, formed as a double cone, closes the outlet in the top direction and is further supported by the dynamic pressure of the bulk material by the height of the container.

When the closure is opened, the entire outlet cross section can, without limitation, leak, jam and prevent stroke formation so that the product is deposited on the closure elements.

An essential advantage of the invention can be seen in that the double cone arranged in the container outlet is arranged in the region of the container extension. If this is pulled upwards to open, the material can leak almost unhindered. The annular gap is already so large that the cross-section of the annular gap corresponds to the discharge cross-section of the cylindrical outlet with a relatively small lifting movement.

A further advantage of the invention can be seen in the fact that the sealing surfaces, both on the container and on the double cone, are arranged in a strongly activated discharge region, i.e. at places where the material flows at a high speed. Deposits and material adherence are completely excluded in this area. This makes it possible to guarantee a reliable sealing of the container without an additional sealing element such as rubber or rubber seals or other soft sealing elements.

Preferred further embodiments of the invention result from the subclaims.

These and other features of the preferred further embodiments of the invention will be apparent from the claims and the drawings, wherein the features may be per se or may be realized in the form of subcombinations in the embodiment of the invention and in other areas and may be advantageous, as well as design-capable protections for which protection is required.

Overview of the figures in the drawing

invention is next the closer explained using the example design. Fig. phenomenon u j ú; Fig. 1 Fig. 2 representation of weigher detailed illustration devices closure

Examples

The bulk material weighing device consists of a container 7 having a plurality of inlet orifices 2 for the material to close the lid 3.

The material inlets 2 are connected by flexible collars 4 to the material supply openings 6, which are provided with quick-closing flaps 6 so that the material supply can be stopped at the same time when the desired weight value is reached. Furthermore, the vessel also has a pneumatic padpadio or shaker 2 for residual emptying. The outlet 2 of the container 1 is connected by a flexible collar 9 to a drain pipe 10 located underneath it or to a collecting container.

The container 1 is screwed onto a fixed anchored weighing frame 12 on which one or more dynamometers 11 are mounted. The changes in mass of the system are determined using dynamometers 11 on the MSR-system 17. The spout closing body is formed as a double cone 13 movable inside the container 1, which is connected to the pneumatic cylinder 15 by means of a draw bar 14. A proximity initiator 16 is provided on the pneumatic cylinder 15 to signal the MSR-system 17 to the container. .

During weighing, the double cone 13 remains in the closed position.

To empty the container 1, the double cone 13 is brought to a position that does not interfere with the flow of bulk material by means of a pneumatic cylinder 15 and a draw bar 14. Thus, the double cone 13 is washed by the material when the bulk material is discharged both inside the container and from all sides, so that no adherence or residuals on the double cone 13 and the outlet can be created. Upon opening of the spout, the double cone 13 counteracts the jamming inside the container.

6.

In FIG. 2, the sealing area between the container and the double cone 13 is shown in detail. The double cone 13 bears directly on the narrowest region of the cone of the container 1 and on the inner wall of the container 7. The lower cone of the closure element shows a slightly duller taper of the cone of the container 1.

angle such as angle This avoids jamming of the double cone 13

Claims (10)

1. Bulk material storage container having at least one inlet ( 2) for material and is provided with a lid (3) and an impermeable closing spout, wherein the container (1) is funnel-shaped in the lower region and the spout is approximately concentric to the funnel-shaped area and is provided with a double-conical discharge spout (13); arranged axially movably in the interior of the container (1), characterized in that the double cone (13) seals the container (1) directly at the conical passage of the container (1) and closes it, thereby forming the narrowest cone region of the container (1) sealing surface. to find out. Container according to Claim 1, in the container (1) of claim 1, wherein the bulk material is gravimetric. Container according to one of the preceding claims, characterized in that the angle of inclination of the lower double cone (13) of the spout closing body corresponds approximately to the inclination angle of the spout of the container (1) or is slightly greater. Device according to one or more of the above claims, characterized in that the double cone (13) in the interior of the container (1) is actuated by a draw bar (14). Device according to claim 4, characterized in that the pneumatic cylinder (15) moves the draw bar (14) up and down. Device according to one or more of the preceding claims, characterized in that the position of the closing organ is signaled by means of proximity initiators (16). Ί. The device according to one or more of the aforementioned claims is that the material is connected by inlet elastic material supply holes (5). bellows (2) for cuffs (4) with ib ' Device according to one or more of the preceding claims, characterized in that the material supply openings (5) are provided with quick-closing flaps (6). Device according to one or more of the preceding claims, characterized in that a shaking device (7) is mounted on the container (1). Apparatus according to one or more of the preceding claims, characterized in that a flexible collar (9) with a drain pipe (10) located below it or a collecting tank is fastened to the outlet (8) of the container (1). Device according to one or more of the preceding claims, characterized in that the container (1) is screwed onto a fixed anchored weighing frame (12) on which one or more dynamometers (11) are arranged.