Fluent material handling – with receiver or receiver coacting mea – With soil removing – coating – lubricating – sterilizing and/or... – Suction hoods and off-takes
Patent
1993-02-22
1994-07-26
Cusick, Ernest G.
Fluent material handling, with receiver or receiver coacting mea
With soil removing, coating, lubricating, sterilizing and/or...
Suction hoods and off-takes
141 65, 141286, 414291, B65G 1108
Patent
active
053320123
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a device for delivering flowable bulk cargo through a telescopic or collapsible chute.
BACKGROUND ART
Devices of this kind are used in many cases for delivering flowable bulk cargo e.g. grain, from the lower end of a container situated at a distance above a tank vehicle to be loaded with the bulk cargo.
During such loading of the tank vehicle with flowable bulk cargo, which as mentioned above may be grain, or sand, gravel, cement, flour, cocoa powder and other materials, rather great quantities of dust will usually be developed, this dust both being capable of constituting a health risk for the personel in question, and--in the case of combustible dust--a not inconsiderable risk of explosion.
For this reason, in order to prevent the dust from escaping during the loading operation, exhaust filter assemblies are placed at the lower end of the delivering container, the chute then having been moved downwardly to the lower end of the filter assembly. All filter assemblies having been proposed for this purpose up to now, examples of which are known from the documents Frame-A-2.562.525 and German-A-2.313.779, have been constructed with fixed dimensions, and thus by placing such a filter assembly between the lower end of the delivering container and the chute the available free height is reduced which is disadvantageous, particularly since it is desired to increase the size of the tank vehicles.
SUMMARY OF THE INVENTION
It is thereby an object of the present invention to provide such a device by which the available free height is substantially increased as compared to devices comprising a filter assembly with fixed dimensions. This object is achieved with a device, according to the present invention in which the filter assembly is telescopic or collapsible in the vertical direction.
BRIEF DESCRIPTION OF THE DRAWING
In the following specification, the present invention will be explained in more detail with reference to the drawing, in which
FIG. 1 is a vertical longitudinal section through the device in an operational situation, while
FIG. 2 shows the device in a collapsed position of rest.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The device shown in the drawing for delivering flowable bulk cargo (not shown), e.g. grain, consists of two main components, viz.
a chute 1 which has elongated and contracted states in the vertical direction, and
a filter assembly 2, likewise having elongated and contracted states in the vertical direction.
When in use, the device is placed at the lower end of the elongated and contracted states of the chute 1 and filter assembly 2 can be achieved by making chute 1 and filter assembly 2 "telescopic or collapsible" and hereafter this expression will be used to describe the configuration, a granary or a grain bin (not shown), so that an opening in the bottom of the granary or grain bin connects to the upper end of an inlet tube 3, the lower end of which opens in the chute 1. The lower end of the chute is formed with an outlet cone 4. The outlet cone 4 rests in an opening in a roof 5 of a tank vehicle (otherwise not shown) for transporting grain.
Thus, the filter assembly 2 and the chute 1 serve to guide the grain flowing from an outside source, such as a granary or grain bin (not shown) down into the tank vehicle, via the roof 5 thereof.
The filter assembly 2 is adapted to prevent escape of dust while the grain flows down through the filter assembly and the chute. To this end, the filter assembly 2 is constructed as an enclosure extending around the inlet tube 3 to form an inlet assembly above the chute 1, the lower end of the enclosure in the operating condition shown in FIG. 1 being in open communication with the upper part of the chute 1 and the lower part of the inlet tube 3, while the upper end of the enclosure forms a suction chamber 6, the latter being connected through a suction conduit 7 to a suction fan or the like (not shown).
In order to prevent the dust, which is transported with the suctioned air from the transition
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Cusick Ernest G.
Th. Rasmussen Molle - Og Maskinbyggeri A/S
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