Gas separation – Multiple separators – each with discrete and longitudinally... – With flow equalizing – controlling – or distributing means
Patent
1993-02-12
1993-12-28
Hart, Charles
Gas separation
Multiple separators, each with discrete and longitudinally...
With flow equalizing, controlling, or distributing means
55429, 55432, 553501, 406171, B01D 4600
Patent
active
052735621
DESCRIPTION:
BRIEF SUMMARY
This invention relates to apparatus for the separation of particulate solids from a transport gas, and subsequent storage thereof.
Vacuum separation units which are used within the vacuum loading industry are typically mounted on heavy goods vehicles within the range of 20 to 32 tons, and are fitted with their own material containers or tanks of around 10 to 15 cubic meter capacity.
Such vacuum units, which are mainly utilised for the extraction of both wet and dry materials from confined areas, must be disconnected from the extraction hose and the material transport the material to the tipping or holding area. which could be miles away from the extraction point. This transportation time, particularly for large quantities, can greatly extend the time to complete the work.
We have now devised apparatus which obviates some of the above mentioned difficulties.
According to the present invention therefore, there is provided apparatus for separating particulate solids from a transport gas, which apparatus comprises: solids, said storage means having outlet means selectively openable and closable such that said particulate solids can be selectively discharged therefrom or retained therein: repository for said particulate solids remote from said storage means: location remote therefrom: ducting means: through said inlet ducting means, storage means, and outlet ducting means; and level of said outlet means is above the level of an open-topped receptacle to be filled with said particulate solids.
It is preferred that the storage means is in the form of a container such as a hopper or the like. Advantageously the container has a pivotably openable door, constituting the outlet means, preferably located in the region of the lowermost extent of the container. It is further preferred that the door is pivoted with a peripheral seal such that when in the closed position, a substantially airtight seal is effected between the door and the container.
The container is preferably provided with a sloping base portion such that when the outlet means is in the open position the particulate solids stored within the container may slide under gravity out of the container.
It is preferred that the inlet ducting means is in the form of a single inlet duct communicating with the storage means. Advantageously the outlet ducting means comprises a pair of outlet ducts arranged one either side the inlet duct. This ensures that the flow of the transport gas is "split" in two within the storage means which aids the deposition of the particulate solids within the storage means.
Advantageously, the means for inhibiting the flow of the particulate solids into the outlet ducting means will be in the form of a filtration unit, typically of muslin or gauze, provided for each outlet duct. The filtration units are typically located within the storage means (or container).
The means for inducting the flow of transport gas is preferably a pneumatic pump or compressor such as a vacuum pump or the like. It is preferred that the pneumatic pump is located downstream of the outlet ducting means.
Advantageously, the outer ducting means includes valving means selectively operable to alter the flow of gas within the apparatus, such that flow of transport gas along said inlet ducting means can be caused to substantially cease. Preferably this is achieved by providing a valve in the outlet ducting means through which, when opened, atmospheric air can be drawn directly through the pneumatic pump.
The mounting means may be a frame such as a scaffolding frame or the like.
The invention will now be further described in a specific embodiment, by way of example only, with reference to the accompanying drawings, in which,
FIG. 1 is a perspective view of apparatus according to the invention.
FIG. 2 is a schematic perspective view of the apparatus of FIG. 1.
FIG. 3a is a schematic rear view of a part of the apparatus of FIGS. 1 and 2.
FIG. 3b is a schematic side view of the part of FIG. 3a: and
FIG. 3c is a schematic plan view of the part of FIGS. 3a and 3b.
Referring
REFERENCES:
patent: 4372713 (1983-02-01), Klan
patent: 4574420 (1986-03-01), Dupye
Hart Charles
Technivac Limited
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