US20120121399A1 - air vacuum pump for a particulate loader and transfer apparatus - Google Patents
air vacuum pump for a particulate loader and transfer apparatus Download PDFInfo
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- US20120121399A1 US20120121399A1 US13/386,976 US201013386976A US2012121399A1 US 20120121399 A1 US20120121399 A1 US 20120121399A1 US 201013386976 A US201013386976 A US 201013386976A US 2012121399 A1 US2012121399 A1 US 2012121399A1
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- Prior art keywords
- vacuum pump
- transfer apparatus
- blower
- blades
- blade
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/24—Gas suction systems
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D87/00—Loaders for hay or like field crops
- A01D87/10—Loaders for hay or like field crops with blowers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
- B65G33/32—Adaptations of bearings or couplings for supporting and connecting screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A blower for a particulate loader and transfer apparatus, comprising, at least one blade having a proximal and distal end, means for rotating the at least one blade in a direction about an axis of rotation wherein the proximal end of the blade is nearer to the axis of rotation than the distal end of the blade is to the axis of rotation and wherein the blade is angled so that as the blade rotates about the axis, the proximal end of the blade precedes the distal end of the blade.
Description
- The present invention relates to a high capacity particulate loader and transfer apparatus for grains, fertilizers, chemicals, particulates and granular material (hereinafter referred to as “particulates”), and more particularly, relates to an improved air vacuum pump for a particulate loader and transfer apparatus.
- Particulate loader and transfer devices are well known, and as described in U.S. Pat. No. 7,431,537, may be used by farmers and others to load and transfer grain and other particulates in a convenient manner. These devices may include, for example, one or more blowers to create suction within an air-materials separation chamber and a vacuum pickup hose attached thereto, to transport grain or other materials from one location, into the air-materials separation chamber in the bottom of which is positioned an auger for transferring the grain or other particulate material from the air-materials separation chamber into, for example an open truck, container or other location.
- Generally, the blower includes either a radial or centrifugal blower which draws the air from the air-materials separation chamber and the vacuum pickup hose extending therefrom, and exhausts the air to the atmosphere in an area adjacent to the particulate loader and transfer device. The radial or centrifugal blowers are useful in transporting large volumes of air and particulate material quickly and efficiently, which is particularly desirable in the context of particulate loader and transfer devices.
- It is desirable to provide a particulate loader and transfer device with improved suction characteristics, for example, to enhance suction in the air-materials separation chamber and the vacuum pickup hose extending therefrom, to increase volume of particulate material being transported through the vacuum pickup hose, the distance that the particulate material can travel within the vacuum pickup hose, and to provide additional suction at the open end of and along the length of the vacuum pickup hose in the event that the particulate material is difficult to move or is fully or partially blocking the vacuum pickup hose.
- Accordingly, one object of the present invention is to provide a particulate loader and transfer device with improved suction characteristics, for example, to enhance suction in the air-materials separation chamber and the vacuum pickup hose extending therefrom, to increase volume of particulate material being transported through the vacuum pickup hose and the distance that the particulate material can travel within the vacuum pickup hose.
- Another object of the present invention is to provide a particulate loader and transfer device with improved suction characteristics, for example, to provide additional suction at the open end of and along the length of the vacuum pickup hose in the event that the particulate material is difficult to move or is fully or partially blocking the vacuum pickup hose.
- Another object of the present invention is to provide an improved air vacuum pump for a particulate loader and transfer apparatus to enhance suction in the air-materials separation chamber and the vacuum pickup hose extending therefrom, to increase volume of particulate material being transported through the vacuum pickup hose and the distance that the particulate material can travel within the vacuum pickup hose and to provide additional suction at the open end of and along the length of the vacuum pickup hose in the event that the particulate material is difficult to move or is fully or partially blocking the vacuum pickup hose.
- According to one aspect of the present invention, there is provided a blower for a particulate loader and transfer apparatus comprising, a discharge shroud, and, a centrifugal air vacuum pump disposed inside the discharge shroud and rotatable about an axis of rotation for drawing air and centrifugally expelling the same into the discharge shroud, the centrifugal air vacuum pump comprising, an air inlet for being connected to an air-material separating chamber of the particulate loader and transfer apparatus, the air inlet being disposed concentrically to the axis of rotation; and, a plurality of blades, each blade having a proximal and distal end with the proximal end of the blade being placed in proximity to a circumference of the air inlet and the blade extending therefrom, wherein each blade is angled with respect to a corresponding radial direction such that as the blade rotates about the axis, the proximal end of the blade precedes the distal end of the blade.
- According to another aspect of the present invention, there is provided a blower for a particulate loader and transfer apparatus comprising, a centrifugal air vacuum pump rotatable about an axis of rotation, the centrifugal air vacuum pump for drawing air through an air inlet disposed concentrically to the axis of rotation and centrifugally expelling the air; and, a discharge shroud enclosing the centrifugal air vacuum pump, the discharge shroud comprising at least two cut-offs and at least two corresponding exhaust discharge outlets, the discharge shroud for receiving the centrifugally expelled air and providing the same to the exhaust discharge outlets.
- According to another aspect of the present invention, there is provided a blower for a particulate loader and transfer apparatus comprising, a centrifugal air vacuum pump rotatable about an axis of rotation, the centrifugal air vacuum pump for drawing air through an air inlet disposed concentrically to the axis of rotation and centrifugally expelling the air; a discharge shroud enclosing the centrifugal air vacuum pump, the discharge shroud comprising at least a cut-off and at least a corresponding exhaust discharge outlet, the discharge shroud for receiving the centrifugally expelled air and providing the same to the at least an exhaust discharge outlet; and, at least a stator disposed between an outer edge of the centrifugal air vacuum pump and a wall of the discharge shroud.
- An advantage of the present invention is that it provides a particulate loader and transfer device with improved suction characteristics, for example, to enhance suction in the air-materials separation chamber and the vacuum pickup hose extending therefrom, to increase volume of particulate material being transported through the vacuum pickup hose and to increase the distance that the particulate material can travel within the vacuum pickup hose.
- A further advantage of the present invention is that it provides a particulate loader and transfer device with improved suction characteristics, for example, to provide additional suction at the open end of and along the length of the vacuum pickup hose in the event that the particulate material is difficult to move or is fully or partially blocking the vacuum pickup hose.
- A further advantage of the present invention is that it provides an improved air vacuum pump for a particulate loader and transfer apparatus to enhance suction in the air-materials separation chamber and the vacuum pickup hose extending therefrom, to increase volume of particulate material being transported through the vacuum pickup hose, to increase the distance that the particulate material can travel within the vacuum pickup hose and to provide additional suction at the open end of and along the length of the vacuum pickup hose in the event that the particulate material is difficult to move or is fully or partially blocking the vacuum pickup hose.
- A preferred embodiment of the present invention is described below with reference to the accompanying drawings, in which:
-
FIG. 1A is a front perspective view, partially in ghost, of a particulate loader and transfer apparatus; -
FIG. 1B is a rear perspective view, partially in ghost, of the particulate loader and transfer apparatus illustrated inFIG. 1A ; -
FIG. 1C is a perspective view, partially in ghost, of a multiple straight blade centrifugal air vacuum pump of one embodiment of the present invention; -
FIG. 1D is a plan view, partially in ghost, of a multiple straight blade centrifugal air vacuum pump of the embodiment of the present invention illustrated inFIG. 1C ; -
FIG. 1E is a side view, partially in ghost, of a multiple straight blade centrifugal air vacuum pump of the embodiment of the present invention illustrated inFIG. 1C ; -
FIG. 2 is a block diagram of a front view of the inlet side of a multiple straight blade centrifugal air vacuum pump positioned within a single exhaust discharge shroud of one embodiment of the present invention; -
FIG. 3 is a block diagram of a front view of the inlet side of a multiple straight blade centrifugal air vacuum pump positioned within a widened exhaust discharge shroud of one embodiment of the present invention; -
FIG. 4 is a block diagram of a front view of the inlet side of a multiple straight blade centrifugal air vacuum pump positioned within a partially conically shaped enlarged exhaust discharge shroud of one embodiment of the present invention; -
FIG. 5 is a block diagram of a front view of the inlet side of a multiple straight blade centrifugal air vacuum pump positioned within a dual cut-off, dual exhaust discharge shroud of one embodiment of the present invention; -
FIG. 6 is a block diagram of a front view of the inlet side of a multiple straight blade centrifugal air vacuum pump positioned within a single exhaust discharge shroud having multiple stators positioned therewithin of one embodiment of the present invention; -
FIG. 7 is a block diagram of a front view of the inlet side of a multiple straight blade centrifugal air vacuum pump positioned within a dual cut-off, dual exhaust discharge shroud having multiple stators positioned therewithin of one embodiment of the present invention; -
FIG. 8A is a perspective view, partially in ghost, of an angled straight bladed centrifugal air vacuum pump of one embodiment of the present invention; -
FIG. 8B is a side view, partially in ghost, of an angled straight bladed centrifugal air vacuum pump of the embodiment of the present invention illustrated inFIG. 8A ; -
FIG. 8C is a plan view, partially in ghost, of an angled straight bladed centrifugal air vacuum pump of the embodiment of the present invention illustrated inFIG. 8A ; -
FIG. 9A is a perspective view, partially in ghost, of a curve bladed centrifugal air vacuum pump of one embodiment of the present invention; -
FIG. 9B is a plan view, partially in ghost, of the curve bladed centrifugal air vacuum pump of the embodiment of the present invention illustrated inFIG. 9A ; -
FIG. 9C is a side view, partially in ghost, of a curve bladed centrifugal air vacuum pump of the embodiment of the present invention illustrated inFIG. 9A ; -
FIG. 10A is a perspective view, partially in ghost, of a curve bladed centrifugal air vacuum pump of one embodiment of the present invention having a set of long curved blades and a set of short curved blades; -
FIG. 10B is a plan view, partially in ghost, of a curve bladed centrifugal air vacuum pump of the embodiment of the present invention illustrated inFIG. 10A ; -
FIG. 10C is a side view, partially in ghost, of a curve bladed centrifugal air vacuum pump of the embodiment of the present invention illustrated inFIG. 10A ; -
FIG. 11A is a perspective view, partially in ghost, of an extended curve bladed centrifugal air vacuum pump of one embodiment of the present invention having a set of extended curved blades; -
FIG. 11B is a plan view, partially in ghost, of an extended curve bladed centrifugal air vacuum pump of the embodiment of the present invention illustrated inFIG. 11A ; -
FIG. 11C is a side view, partially in ghost, of an extended curve bladed centrifugal air vacuum pump of the embodiment of the present invention illustrated inFIG. 11A ; -
FIG. 12A is a perspective view, partially in ghost, of an extended curve bladed centrifugal air vacuum pump of one embodiment of the present invention having a set of extended curved blades that are gently angled in a forward direction at the proximal end thereof; -
FIG. 12B is a plan view, partially in ghost, of an extended curve bladed centrifugal air vacuum pump of the embodiment of the present invention illustrated inFIG. 12A ; -
FIG. 12C is a side view, partially in ghost, of an extended curve bladed centrifugal air vacuum pump of the embodiment of the present invention illustrated inFIG. 12A ; -
FIG. 12D is a cross-sectional view of the proximal end of an extended curve bladed centrifugal air vacuum pump of the embodiment of the present invention illustrated inFIG. 12A . - Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention belongs. Although any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention, the preferred methods and materials are now described.
- In a particulate loader and transfer apparatus of the present invention such as is illustrated in
FIGS. 1A and 1B , an air-material separating chamber 2 is generally provided, having aninlet 4 which is adapted to connect to a vacuum pickup hose (not shown), relatively low pressure being created within the air-material separating chamber 2 and the vacuum pickup hose by way of one or moreair vacuum pumps 6 in communication with the air-material separating chamber 2, the particulate material being drawn through the vacuum pickup hose andinlet 4 and into the air-material separating chamber 2 as a result of the relatively low pressure within the air-material separating chamber 2, the particulate material thereafter separating itself from the airflow within the air-material separating chamber 2 (the air-material separation preferably being aided by a separatingdrum 10 within the air-material separating chamber 2 through which separatingdrum 10 only air, dust and small particles may pass) the particulate material falling onto anauger 8 which extends generally upwardly and outwardly from the air-material separating chamber 2 andwinch auger 8 transports the particulate material from the bottom of the air-material separating chamber 2, within atubular housing 12 enclosing theauger tube 8, through an end-dump housing 14 to a waiting truck, container or other particulate storage area. As illustrated inFIG. 1B , theair vacuum pump 6 is, for example, driven by way of a series ofpulleys drive shaft 22 in a conventional manner), apulley 11 being secured to the airvacuum pump shaft 66 in a conventional manner to drive the airvacuum pump shaft 66 andair vacuum pump 6. The air drawn from the air-material separating chamber 2 by the centrifugalair vacuum pump 6 is exhausted to atmosphere by way of anexhaust outlet 24. - With reference to
FIGS. 1 c, 1 d and 1 e in one embodiment of the present invention, the particulate loader and transfer apparatus utilizes a centrifugalair vacuum pump 6 as illustrated inFIGS. 1 c, 1 d and 1 e. In this embodiment of the present invention, the centrifugalair vacuum pump 6 as illustrated inFIGS. 1 c, 1 d and 1 e preferably has a set of 12straight steel blades 52, each of which extends substantially radially outwardly, for example, the blades being aligned or substantially aligned with a correspondingradial reference line 88, and each of which blades is welded, riveted or otherwise securely fastened to a rearsteel rotor plate 58 and to a front steel rotor plate 56 (it being understood that whileFIGS. 1 c, 1 d and 1 e illustrate 12straight steel blades 52, fewer than or more than 12 blades may alternatively be used, and whileFIGS. 1 c, 1 d and 1 e illustrate theblades 52 aligned substantially radially as illustrated by a correspondingradial reference line 88, a wide range of angled blades may alternatively be used as illustrated inFIGS. 8A , 8B and 8C (in which embodiment each blade is angled, as illustrated by way of example by thearrow 86 between one of the blades and a correspondingradial reference line 88, and that in alternative embodiments of the present invention, aluminum or other alternative materials may be used for theblades 52, rearsteel rotor plate 58 and front steel rotor plate 56). When the centrifugal air vacuum pump is rotated (as indicated by the arrow 60) about theshaft 66 to which the rearsteel rotor plate 58 is securely fastened (by way of, for example ahub 71 to which the rearsteel rotor plate 58 is securely fastened, by way of, for example bolts or rivets 69, thehub 71 being bolted or otherwise securely fastened to the shaft in a conventional manner known to a person skilled in the art), air is drawn into the air inlet 50 (as generally indicated by thearrow 62A) and is drawn through the centrifugal air vacuum pump to the air outlet 54 (as generally indicated by thearrows - With reference to
FIG. 2 , in one embodiment of the present invention, an eight bladed centrifugalair vacuum pump 6 is positioned within a single exhaust discharge shroud and being rotated as indicated by thearrow 60, the air being drawn into theair inlet 50 and centrifugally expelled from the centrifugal air vacuum pump as indicated by thearrows 62 toward theouter wall 63 of the shroud, the expelled air being is exhausted to atmosphere (as indicated by thearrow 62A) by way of anexhaust outlet 24. In this embodiment, a single cut-off 25 is utilized being positioned proximate the outer edge of the centrifugalair vacuum pump 6 and proximate the entrance to theexhaust outlet 24 in a conventional manner. In this embodiment of the present invention, as theouter wall 63 of the shroud extends from thecutoff 25, around the centrifugalair vacuum pump 6 to the area proximate the entrance to theexhaust outlet 24, theouter wall 63 extends progressively outwardly relative to the outer edge of the centrifugalair vacuum pump 6, so that the distance between the outer edge of the centrifugalair vacuum pump 6 and theouter wall 63 of the shroud atposition 63 B exceeds the distance between the outer edge of the centrifugalair vacuum pump 6 and theouter wall 63 of the shroud atposition 63A, and similarly the distance between the outer edge of the centrifugalair vacuum pump 6 and theouter wall 63 of the shroud atposition 63 C exceeds the distance between the outer edge of the centrifugalair vacuum pump 6 and theouter wall 63 of the shroud atposition 63B. In one embodiment of the present invention, a length of flexible exhaust hose (not shown) may be attached to the end of theexhaust outlet 24, to allow the exhaust air to be directed and positioned in a desirable manner. - With reference to
FIG. 3 , in one embodiment of the present invention, a centrifugalair vacuum pump 6 is positioned within a single exhaust discharge shroud having a widened (as indicated by thearrow 24B)exhaust outlet 24 when compared to the non-widened (as indicated by thearrow 24A)exhaust outlet 24 illustrated inFIG. 2 . The widened exhaust outlet permits reduced congestion or back-pressure on the overall system, thereby allowing for increased suction and/or increased efficiency of operation. - With reference to
FIG. 4 , in one embodiment of the present invention, a centrifugalair vacuum pump 6 is positioned within a shroud having a partially conically shaped enlarged exhaust discharge outlet 24C, that permits reduced congestion or back-pressure on the overall system, thereby allowing for increased suction and/or increased efficiency of operation. - With reference to
FIG. 5 , in one embodiment of the present invention, a centrifugalair vacuum pump 6 is positioned within a shroud having a first 25A and second cut-off 25B, and a corresponding first and second exhaust discharge outlet, the second cut-off and corresponding second exhaust discharge outlet permits reduced congestion or back-pressure on the overall system, thereby allowing for increased suction and/or increased efficiency of operation. - With reference to
FIG. 6 , in one embodiment of the present invention, a centrifugalair vacuum pump 6 is positioned within a shroud having amultiple stators FIG. 6 , and are gently curved and of progressively increased length as they are located closer to the exhaust discharge outlet. The stators reduce the back-pressure on the centrifugalair vacuum pump 6, thereby allowing for increased suction and/or increased efficiency of operation. In one embodiment of the present invention, the number of stators is either greater or less than, but not equal to, and not a multiple of, the number of blades on the centrifugalair vacuum pump 6 so that the outer edge of only one blade of the centrifugal air vacuum pump passes the leading edge of only one stator at any given time, thereby reducing or spreading or smearing the noise associated with the passage of the blades in close proximity to the stators, thereby reducing the noise spike associated with multiple blades passing in close proximity to multiple stators at the same time. - With reference to
FIG. 7 , in one embodiment of the present invention, a centrifugalair vacuum pump 6 is positioned within a shroud having amultiple stators FIG. 7 , gently curved and of progressively increased length as they are located closer to each of their respective exhaust discharge outlets. The stators combined with the two exhaust discharge outlets reduce the back-pressure on the centrifugalair vacuum pump 6, thereby allowing for increased suction and/or increased efficiency of operation. In one embodiment of the present invention, the number of stators is either greater or less than, but not equal to, and not a multiple of, the number of blades on the centrifugalair vacuum pump 6 so that the outer edge of only one blade of the centrifugal air vacuum pump passes the leading edge of only one stator at any given time, thereby reducing or spreading or smearing the noise associated with the passage of the blades in close proximity to the stators, thereby reducing the noise spike associated with multiple blades passing in close proximity to multiple stators at the same time. - With reference to
FIGS. 8A , 8B, and 8C, in one embodiment of the present invention, the particulate loader and transfer apparatus has a centrifugalair vacuum pump 6 as illustrated inFIGS. 8A , 8B, and 8C. In this embodiment of the present invention, the centrifugalair vacuum pump 6 preferably has a set of 12straight steel blades 52, each of which is angled (as illustrated by way of example by thearrow 86 between one of the blades and a corresponding radial reference line 88) and each of which blades is welded, riveted or otherwise securely fastened to a rearsteel rotor plate 58 and to a front steel rotor plate 56 (it being understood that whileFIGS. 8A and 8B illustrate 12straight steel blades 52, fewer than or more than 12 blades may alternatively be used, and whileFIGS. 8A and 8B illustrate theblades 52 at an angle of approximately 45° (as illustrated by way of example by thearrow 86 between one of the blades and a corresponding radial reference line 88), a wide range of angles may alternatively be used, and that in alternative embodiments of the present invention, aluminum or other alternative materials may be used for theblades 52, rearsteel rotor plate 58 and front steel rotor plate 56). When the centrifugal air vacuum pump is rotated (as indicated by the arrow 60) about the centrifugal airvacuum pump shaft 66 to which the rearsteel rotor plate 58 is securely fastened (by way of, for example ahub 71 to which the rearsteel rotor plate 58 is securely fastened, by way of, for example bolts or rivets 69, thehub 71 being bolted or otherwise securely fastened to the centrifugal air vacuum pump shaft in a conventional manner known to a person skilled in the art), air is drawn into the air inlet 50 (as generally indicated by thearrow 62A) and is drawn through the centrifugal air vacuum pump to the air outlet 54 (as generally indicated by thearrows - With reference to
FIGS. 9A , 9B and 9C, in one embodiment of the present invention, the particulate loader and transfer apparatus has a centrifugalair vacuum pump 6 as illustrated inFIGS. 9A , 9B and 9C. In this embodiment of the present invention, the centrifugalair vacuum pump 6 preferably has a set of 12curved steel blades 70, each of which is angled (as illustrated by way of example by thearrow 86 between one of the blades and a corresponding radial reference line 88), and each of which is welded, riveted or otherwise securely fastened to a rearsteel rotor plate 58 and to a front steel rotor plate 56 (it being understood that whileFIGS. 9A and 9B illustrate 12curved steel blades 70, fewer than or more than 12 blades may alternatively be used, and whileFIGS. 9A and 9B illustrate the proximal end of theblades 70 at an angle of approximately 45° (as illustrated by way of example by thearrow 86 between one of the blades and a corresponding radial reference line 88), a wide range of angles may alternatively be used, and that in alternative embodiments of the present invention, aluminum or other alternative materials may be used for theblades 70, rearsteel rotor plate 58 and front steel rotor plate 56). - When the centrifugal air vacuum pump is rotated (as indicated by the arrow 60) about the centrifugal air
vacuum pump shaft 66 to which the rearsteel rotor plate 58 is securely fastened (by way of, for example ahub 71 to which the rearsteel rotor plate 58 is securely fastened, by way of, for example bolts or rivets 69, thehub 71 being bolted or otherwise securely fastened to the centrifugal air vacuum pump shaft in a conventional manner known to a person skilled in the art), air is drawn into the air inlet 50 (as generally indicated by thearrow 62A) and is drawn through the centrifugal air vacuum pump to the air outlet 54 (as generally indicated by thearrows - With reference to
FIGS. 10A , 10B and 10C, in one embodiment of the present invention, the particulate loader and transfer apparatus has a centrifugalair vacuum pump 6 as illustrated inFIGS. 10A , 10B and 10C. In this embodiment of the present invention, the centrifugalair vacuum pump 6 preferably has a set of 12 longcurved steel blades 80, each of which is angled (as illustrated by way of example by thearrow 86 between one of the blades and a corresponding radial reference line 88), and each of which is welded, riveted or otherwise securely fastened to a rearsteel rotor plate 58 and to a frontsteel rotor plate 56, and additionally, has a set of 12 shortcurved steel blades 82, each of which is alternately between the long curved steel blades 80 (it being understood that whileFIGS. 10A and 10B illustrate 12 longcurved steel blades FIGS. 10A and 10B illustrate the proximal end of theblades 80 at an angle of approximately 45° (as illustrated by way of example by thearrow 86 between one of the blades and a corresponding radial reference line 88), a wide range of angles may alternatively be used, and that in alternative embodiments of the present invention, aluminum or other alternative materials may be used for the longcurved blades 80, the shortcurved blades 82, the rearsteel rotor plate 58 and front steel rotor plate 56). When the centrifugal air vacuum pump is rotated (as indicated by the arrow 60) about the centrifugal airvacuum pump shaft 66 to which the rearsteel rotor plate 58 is securely fastened (by way of, for example ahub 71 to which the rearsteel rotor plate 58 is securely fastened, by way of, for example bolts or rivets 69, thehub 71 being bolted or otherwise securely fastened to the centrifugal air vacuum pump shaft in a conventional manner known to a person skilled in the art), air is drawn into the air inlet 50 (as generally indicated by thearrow 62A) and is drawn through the centrifugal air vacuum pump to the air outlet 54 (as generally indicated by thearrows - With reference to
FIGS. 11 a, 11 b, and 11 c, in one embodiment of the present invention, the particulate loader and transfer apparatus has a centrifugalair vacuum pump 6 as illustrated inFIGS. 11 a, 11 b, and 11 c. In this embodiment of the present invention, the centrifugalair vacuum pump 6 preferably has a set of 12 extendedcurved steel blades 90, each of which is angled (as illustrated by way of example by thearrow 86 between one of the blades and a corresponding radial reference line 88) relative to a correspondingradial reference line 88, and each of which is welded, riveted or otherwise securely fastened to a rearsteel rotor plate 58 and to a front steel rotor plate 56 (it being understood that whileFIGS. 11 a and 11 b illustrate 12curved steel blades 90, fewer than or more than 12 blades may alternatively be used, and whileFIGS. 11 a and 11 b illustrate the proximal end of theblades 90 at an angle of approximately 20°-45° to theradial reference line 88, a wide range of angles may alternatively be used, and that in alternative embodiments of the present invention, aluminum or other alternative materials may be used for theblades 90, rearsteel rotor plate 58 and front steel rotor plate 56). In this embodiment of the present invention each of theblades 90 extends ashort distance 91 beyond thecircumference 51 of the inlet 50 (in an alternative embodiment while some of theblades 90 beyond thecircumference 51 of theinlet 50, some of theblades 90 extend only to thecircumference 51, it being understood that these blades are positioned on the centrifugalair vacuum pump 60 in a balanced way so that no portion of the centrifugal air vacuum pump is out of balance relative to the other portions of the centrifugal air vacuum pump). When the centrifugal air vacuum pump is rotated (as indicated by the arrow 60) about the centrifugal airvacuum pump shaft 66 to which the rearsteel rotor plate 58 is securely fastened (by way of, for example ahub 71 to which the rearsteel rotor plate 58 is securely fastened, by way of, for example bolts or rivets 69, thehub 71 being bolted or otherwise securely fastened to the centrifugal air vacuum pump shaft in a conventional manner known to a person skilled in the art), air is drawn into the air inlet 50 (as generally indicated by thearrow 62A) and is drawn through the centrifugal air vacuum pump to the air outlet 54 (as generally indicated by thearrows - With reference to
FIGS. 12 a, 12 b, 12 c and 12 d, in one embodiment of the present invention, the particulate loader and transfer apparatus has a centrifugalair vacuum pump 6 as illustrated inFIGS. 12 a, 12 b, 12 c and 12 d. In this embodiment of the present invention, the centrifugalair vacuum pump 6 preferably has a set of 12 extendedcurved steel blades 100, each of which is angled (as illustrated by way of example by thearrow 86 between one of the blades and a corresponding radial reference line 88), and each of which is welded, riveted or otherwise securely fastened to a rearsteel rotor plate 58 and to a front steel rotor plate 56 (it being understood that whileFIGS. 12 a and 12 b illustrate 12curved steel blades 100, fewer than or more than 12 blades may alternatively be used, and whileFIGS. 12 a and 12 b illustrate the proximal end of theblades 90 at an angle of approximately 20°-45° to theradial reference line 88, a wide range of angles may alternatively be used, and that in alternative embodiments of the present invention, aluminum or other alternative materials may be used for theblades 100, rearsteel rotor plate 58 and front steel rotor plate 56). In this embodiment of the present invention theproximal end 101 of each of theblades 100 extends a distance beyond thecircumference 51 of theinlet 50 and near the proximal end thereof, the edge of theblade 63 nearest the rotational axis of the centrifugal air vacuum pump is gently angled or curved in the direction ofrotation 60 as illustrated in the cross-sectional view of the proximal end of the blade illustrated inFIG. 12D (in an alternative embodiment while some of theblades 100 beyond thecircumference 51 of theinlet 50, some of theblades 100 extend only to thecircumference 51, it being understood that these blades are positioned on the centrifugalair vacuum pump 60 in a balanced way so that no portion of the centrifugal air vacuum pump is out of balance relative to the other portions of the centrifugal air vacuum pump). When the centrifugal air vacuum pump is rotated (as indicated by the arrow 60) about the centrifugal airvacuum pump shaft 66 to which the rearsteel rotor plate 58 is securely fastened (by way of, for example ahub 71 to which the rearsteel rotor plate 58 is securely fastened, by way of, for example bolts or rivets 69, thehub 71 being bolted or otherwise securely fastened to the centrifugal air vacuum pump shaft in a conventional manner known to a person skilled in the art), air is drawn into the air inlet 50 (as generally indicated by thearrow 62A) and is drawn through the centrifugal air vacuum pump to the air outlet 54 (as generally indicated by thearrows - The present invention has been described herein with regard to preferred embodiments. However, it will be obvious to persons skilled in the art that a number of variations and modifications can be made without departing from the scope of the invention as described herein.
Claims (17)
1. A blower for a particulate loader and transfer apparatus comprising:
a discharge shroud; and,
a centrifugal air vacuum pump disposed inside the discharge shroud and rotatable about an axis of rotation for drawing air and centrifugally expelling the same into the discharge shroud, the centrifugal air vacuum pump comprising:
an air inlet for being connected to an air-material separating chamber of the particulate loader and transfer apparatus, the air inlet being disposed concentrically to the axis of rotation; and,
a plurality of blades, each blade having a proximal and distal end with the proximal end of the blade being placed in proximity to a circumference of the air inlet and the blade extending therefrom, wherein each blade is angled with respect to a corresponding radial direction such that as the blade rotates about the axis, the proximal end of the blade precedes the distal end of the blade.
2. A blower for a particulate loader and transfer apparatus as defined in claim 1 wherein each blade is curved.
3. A blower for a particulate loader and transfer apparatus as defined in claim 2 wherein each blade is curved such that the angle with respect to the corresponding radial direction is increasing with increasing distance to the axis of rotation.
4. A blower for a particulate loader and transfer apparatus as defined in claim 1 wherein the centrifugal air vacuum pump comprises a plurality of supplemental blades, each supplemental blade having a proximal and distal end with the distal end of the guide member being placed in proximity to an outer edge of the centrifugal air vacuum pump and the supplemental blade having a shorter length than the blades.
5. A blower for a particulate loader and transfer apparatus as defined in claim 4 wherein each supplemental blade is equidistantly interposed between two successive blades.
6. A blower for a particulate loader and transfer apparatus as defined in claim 4 wherein each supplemental blade is curved.
7. A blower for a particulate loader and transfer apparatus as defined in claim 1 wherein the proximal end of at least a subset of the blades is extended into the air inlet.
8. A blower for a particulate loader and transfer apparatus as defined in claim 7 wherein the proximal end of the at least a subset of the blades is angled in the direction of rotation.
9. A blower for a particulate loader and transfer apparatus as defined in claim 1 wherein the centrifugal air vacuum pump comprises a front rotor plate and a rear rotor plate having the blades disposed therebetween and mounted thereto.
10. A blower for a particulate loader and transfer apparatus as defined in claim 9 wherein the front rotor plate comprises the air inlet and extends therefrom.
11. A blower for a particulate loader and transfer apparatus as defined in claim 1 wherein the discharge shroud comprises at least two cut-offs and at least two corresponding exhaust discharge outlets.
12. A blower for a particulate loader and transfer apparatus as defined in claim 1 comprising at least a stator disposed between an outer edge of the centrifugal air vacuum pump and a wall of the discharge shroud.
13. A blower for a particulate loader and transfer apparatus comprising:
a centrifugal air vacuum pump rotatable about an axis of rotation, the centrifugal air vacuum pump for drawing air through an air inlet disposed concentrically to the axis of rotation and centrifugally expelling the air; and,
a discharge shroud enclosing the centrifugal air vacuum pump, the discharge shroud comprising at least two cut-offs and at least two corresponding exhaust discharge outlets, the discharge shroud for receiving the centrifugally expelled air and providing the same to the exhaust discharge outlets.
14. A blower for a particulate loader and transfer apparatus comprising:
a centrifugal air vacuum pump rotatable about an axis of rotation, the centrifugal air vacuum pump for drawing air through an air inlet disposed concentrically to the axis of rotation and centrifugally expelling the air;
a discharge shroud enclosing the centrifugal air vacuum pump, the discharge shroud comprising at least a cut-off and at least a corresponding exhaust discharge outlet, the discharge shroud for receiving the centrifugally expelled air and providing the same to the at least an exhaust discharge outlet; and,
at least a stator disposed between an outer edge of the centrifugal air vacuum pump and a wall of the discharge shroud.
15. A blower for a particulate loader and transfer apparatus as defined in claim 14 wherein the at least a stator is curved.
16. A blower for a particulate loader and transfer apparatus as defined in claim 14 wherein the at least a stator comprises a plurality of stators with the stators having an increased length in the direction of the rotation of the centrifugal air vacuum pump.
17. A blower for a particulate loader and transfer apparatus as defined in claim 14 wherein the at least a stator comprises a plurality of stators and wherein the number of stators is other than the number of blades and wherein the number of stators is other than a multiple of the number of blades.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2674163A CA2674163C (en) | 2009-07-31 | 2009-07-31 | Improved blower for a particulate loader and transfer apparatus |
CA2674163 | 2009-07-31 | ||
CA2703855 | 2010-05-10 | ||
CA2703855A CA2703855C (en) | 2009-07-31 | 2010-05-10 | Improved air vacuum pump for a particulate loader and transfer apparatus |
PCT/CA2010/001073 WO2011011863A1 (en) | 2009-07-31 | 2010-07-06 | Improved air vacuum pump for a particulate loader and transfer apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120121399A1 true US20120121399A1 (en) | 2012-05-17 |
Family
ID=43528662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/386,976 Abandoned US20120121399A1 (en) | 2009-07-31 | 2010-07-06 | air vacuum pump for a particulate loader and transfer apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US20120121399A1 (en) |
EP (1) | EP2458963A1 (en) |
AU (2) | AU2010278622A1 (en) |
CA (2) | CA2703855C (en) |
WO (1) | WO2011011863A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110027094A1 (en) * | 2009-07-31 | 2011-02-03 | Rem Enterprises Inc. | Blower for a particulate loader and transfer apparatus |
US20110103901A1 (en) * | 2009-11-02 | 2011-05-05 | Super Products Llc | Debris level indicator in vacuum loaded mobile tanks |
US20170355535A1 (en) * | 2016-06-14 | 2017-12-14 | Brandt Agricultural Products Ltd. | Vacuum conveyor with cogged drive belt |
US10017332B2 (en) * | 2016-06-14 | 2018-07-10 | Brandt Agricultural Products Ltd. | Vacuum conveyor with intake nozzle and sleeve |
CN117049058A (en) * | 2023-10-11 | 2023-11-14 | 太原福莱瑞达物流设备科技有限公司 | Unpowered blocking system applied to loading system |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110027094A1 (en) * | 2009-07-31 | 2011-02-03 | Rem Enterprises Inc. | Blower for a particulate loader and transfer apparatus |
US8764400B2 (en) * | 2009-07-31 | 2014-07-01 | Ag Growth Industries Partnership | Blower for a particulate loader and transfer apparatus |
US20110103901A1 (en) * | 2009-11-02 | 2011-05-05 | Super Products Llc | Debris level indicator in vacuum loaded mobile tanks |
US9045072B2 (en) * | 2009-11-02 | 2015-06-02 | Super Products Llc | Debris level indicator in vacuum loaded mobile tanks |
US20150151662A1 (en) * | 2009-11-02 | 2015-06-04 | Super Products Llc | Debris level indicator in vacuum loaded mobile tanks |
US20170355535A1 (en) * | 2016-06-14 | 2017-12-14 | Brandt Agricultural Products Ltd. | Vacuum conveyor with cogged drive belt |
US10017332B2 (en) * | 2016-06-14 | 2018-07-10 | Brandt Agricultural Products Ltd. | Vacuum conveyor with intake nozzle and sleeve |
CN117049058A (en) * | 2023-10-11 | 2023-11-14 | 太原福莱瑞达物流设备科技有限公司 | Unpowered blocking system applied to loading system |
Also Published As
Publication number | Publication date |
---|---|
AU2016200247A1 (en) | 2016-02-04 |
CA2703855C (en) | 2018-12-11 |
WO2011011863A1 (en) | 2011-02-03 |
AU2010278622A1 (en) | 2012-02-02 |
CA2766584A1 (en) | 2011-02-03 |
CA2703855A1 (en) | 2011-01-31 |
EP2458963A1 (en) | 2012-06-06 |
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Legal Events
Date | Code | Title | Description |
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Owner name: REM ENTERPRISES INC., CANADA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WOODS, KENT;KERR, PAUL;REEL/FRAME:027591/0799 Effective date: 20100705 |
|
AS | Assignment |
Owner name: AG GROWTH INDUSTRIES PARTNERSHIP, CANADA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:REM ENTERPRISES INC.;REEL/FRAME:032342/0650 Effective date: 20140203 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |