Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1981-07-13
1984-07-03
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15346, 15347, 15352, A47L 514
Patent
active
044570430
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a sweeper particularly for collecting dust-like material and the utilization thereof for collecting aluminum dust in smelting plants, or for collecting cement.
STATE OF THE ART
Street sweeping machines are known (CH Patent 582 281) which, however, are not suitable for collecting fine dusts in industrial plants because said dusts, for example aluminum dust, are only whirled up, but not collected and deposited. The utilization of so-called industrial vacuum cleaners cannot be considered for collecting such dusts in technical plants, because their capacity is much too low.
Summary of the Invention
It is the problem of the present invention to provide a cleaning machine which is suitable for technical, particularly aluminum-processing plants or aluminum smelting works, and capable of collecting and depositing also the finest dusts without enveloping the machine in a cloud of dust while the latter is in operation.
The solution to said problem is offered in the form of the sweeping machine according to the invention.
Said machine is characterized by the cooperation between the following parts: the center of the mouthpiece, and a suction pipe inside; the main mouthpiece; suction side of a fan; exhausted air and for feeding a portion of said air to blowing nozzles in the main mouthpiece and the other portion to another separator; and
BRIEF DESCRIPTION OF THE DRAWINGS
An embodiment of the object of the invention is explained in the following with the help of the drawing in which:
FIG. 1 shows a circuit diagram of a sweeping machine for collecting aluminum dust;
FIG. 2 is a schematic view of a sweeping machine shown in a lateral view;
FIG. 3 is a top view of the sweeping machine according to FIG. 2;
FIG. 4 is a front view of the sweeping machine according to FIG. 2; and
FIG. 5 is a perspective view of the model of a sweeping machine analogue to FIGS. 2 to 4, showing the secondary nozzle in three positions (indicated by full, dashed and dash-dotted lines).
DESCRIPTION OF THE INDIVIDUAL FIGURES
FIG. 1 shows the circuit diagram of an arrangement 1 for receiving aluminum dust, with the pneumatic system and the separating system. The pneumatic system is provided with a main blower 3 with pressure pipe 4, the latter being divided into a main conduit 6 and a secondary conduit 7. The conveyed air is divided by means of a flap 8 capable of being swiveled around an axle 5. Said flap may be adjusted by hand by way of a lever system or by means of a servo motor. The main conduit 6 feeds into a main mouthpiece 9 and supplies a lateral ring nozzle 10--or a plurality of nozzles extending over at least a portion of the circumference--with pressure air blowing the dust against the center of the main mouthpiece 9. Here, the air laden with aluminum dust is exhausted by a main conduit 12 having a suction nozzle 13 (arranged in the center or off center). In addition to the main mouthpiece 9, the arrangement is provided with a secondary nozzle 15 having a funnel 16 and a suction conduit 19, said suction conduit 19 being movable, having the form, for example of a hose conduit. The suction conduit 17 and the main suction conduit 12 join each other in a common conduit 19, with an adjustable flap 20 being arranged at the point where conduits 17 and 12 join in order to adjust the amounts of air. The common conduit 19 is continued in the form of a cyclone inlet 22, Said inlet accommodates a revolving, for example motor-driven vaned separator wheel 23. Said wheel decelerates the coarse parts such as paper, parts of face masks and like, whereas the conveyed air with the aluminum dust, with only little obstruction offered by the perforated vanes 21, is divided onto three cyclones 24, 25 and 26. The coarse parts are discharged by way of a conduit 27, whereas the fine particles, which are separated in the multiple cyclone, are collected in collecting bin 26 and discharged from said bin. The three cyclones are accommodated in a collecting bin 28. The center suction pipes 30, 31 and 32 of cyclones 24, 25 a
REFERENCES:
patent: 978216 (1910-12-01), Rutherfurd et al.
patent: 1459968 (1923-06-01), Bailly
patent: 2932845 (1960-04-01), Rydberg
patent: 4044422 (1977-08-01), Larsen
Meyerhans Alex
Oeberg Lennart
Aktiengesellschaft Rolba
Moore Chris K.
Rosen Lawrence
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