EP0102333A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method and apparatus for spreading and distributing a solid or liquid particulate material
Assignee: INGENJORSFIRMAN ALF ANDERSSON HB
•
Filing: 1983-07-26
•
Granted: —
•
Expires: 2003-07-26
Abstract
Abstract For separating a solid or liquid particulate material from a pneumatically conveyed flow of material and spreading and distributing the material, the flow of material is introduced, preferably after it has been set in rotary motion, into a centrifugal chamber (20) for centrifugal separation of the particulate, solid or liquid material which is collected in a buffer store from which it is flung out in a plane perpendicular to the axis of rotation of the centifugal chamber. <??>An apparatus for such separation, spreading and distribution comprises a centrifugal chamber (20) operable by means of the flow of material in order to achieve the contemplated centrifugal separation. The terminal edge (25) of the circumference of the centrifugal chamber (20) serves as an overflow for establishing a buffer store and has a flow-retarding inwardly directed flange (25). A baffle may be provided around the terminal edge to intercept the material flung out and conducting the material, via hopper-like flow-retarding recesses, to different outlets provided around the terminal edge.
Inventors
- 👤 Alf Helmer Andersson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 23:41
CPC Classifications
A; A01; A01C; A01C15/00; A01C15/04; A01C7/00; A01C7/08; A01C7/081; A01C7/084; A01M; A01M7/00; A01M7/0025; A01M7/0028; A01M9/00; A01M9/0053; A01M9/0061
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
89 words
A method for spreading and distributing a solid or liquid particulate material which is supplied in the form of a pneumatically conveyed flow of material, characterised in that the flow of material is introduced into a centrifugal chamber (20, 50) in which the material is separated, by centrifugation, from the conveying gas and is collected in a buffer store from which it is conducted to at least one exit point (25, 33) and is flung out in a plane perpendicular to the axis of rotation of the centrifugal chamber.
Claim 2
Independent Claim
89 words
A method for spreading and distributing a solid or liquid particulate material which is supplied in the form of a pneumatically conveyed flow of material, characterised in that the flow of material is introduced into a centrifugal chamber (20, 50) in which the material is separated, by centrifugation, from the conveying gas and is collected in a buffer store from which it is conducted to at least one exit point (25, 33) and is flung out in a plane perpendicular to the axis of rotation of the centrifugal chamber.
Claim 3
Dependent Claim
36 words
A method as claimed in claim 1, characterised in that the material flung out from the centrifugal chamber (20, 50) is intercepted in openings (35, 47) provided in a wall (37, 44) surrounding the centrifugal chamber.
Claim 4
Dependent Claim
25 words
A method as claimed in claim 1 or 2, characterised in that the centrifugal chamber (20, 50) is rotated by means of the conveying gas.
Claim 5
Dependent Claim
35 words
A method as claimed in claim 1, 2 or 3, characterised in that the movement of the separated material from the buffer store to the exit point in the centrifugal chamber (20, 50) is retarded.
Claim 6
Independent Claim
35 words
A method as claimed in any one of claims 1-4, characterised in that the movement of the separated material from the buffer store to the exit point in the centrifugal chamber (20, 50) is supported.
Claim 7
Dependent Claim
69 words
A method as claimed in claim 5, characterised in that the movement of the separated material from the buffer store to the exit point in the centrifugal chamber (50) is supported by a mechanical conveying device (63), preferably a conveyer having a conveyer screw (63) or at least one oblique vane, said screw or vane acting against the circumference (51) of the centrifugal chamber (50) and rotating relative thereto.
Claim 8
Independent Claim
35 words
A method as claimed in any one of claims 1-6, characterised in that the pneumatically conveyed flow of material is set in rotary motion prior to its entry into the rotating centrifugal chamber (20, 50).
Claim 9
Independent Claim
58 words
A method as claimed in any one of claims 1-7, characerised by imparting to the material separated in the centrifugal chamber an axial component of motion for successively moving the material along the circumference (51) of the centrifugal chamber before the material is flung out in a plane perpendicular to the axis of rotation of the centrifugal chamber.
Claim 10
Dependent Claim
37 words
A method as claimed in claim 8, characterised in that the material is flung out from the centrifugal chamber (20, 50) via the terminal edge of the circumference (51), which is in the form of an overflow.
Claim 11
Independent Claim
123 words
An apparatus for carrying the method as claimed in any one of claims 1-9 into effect, said apparatus comprising an inlet (10, 65) for a pneumatically conveyed flow of solid or liquid particulate material and a rotor arrangement (20, 50) for distributing the solid or liquid particulate material into one or more outlets (27; 35, 36; 47, 48) provided around the rotor arrangement, characterised in that the rotor arrangement (20, 50) is a centrifugal chamber (20, 50) the circumference (51) of which has a terminal edge (25) in the form of an overflow for providing a buffer storage space from which the separated material is intended to be flung out in a plane perpendicular to the axis of rotation of the centrifugal chamber.
Claim 12
Dependent Claim
50 words
An apparatus as claimed in claim 10, characterised in that the inlet (10, 65) of the apparatus has a rotation generator (16, 17; 66) for imparting to the flow of material a rotary motion prior to or on introduction of the flow of material into the centrifugal chamber (20, 50).
Claim 13
Dependent Claim
71 words
An apparatus as claimed in claim 10 or 11, characterised in that a baffle (37, 44) is provided around the terminal edge of the centrifugal chamber (20, 50), said terminal edge being in the form of an overflow and said baffle having a series of hopper-like flow-retarding recesses (38, 39; 45, 46) distributed along the baffle side facing the overflow, at which recesses the outlets (35, 36; 47, 48) are provided.
Claim 14
Independent Claim
42 words
An apparatus as claimed in any one of claims 10-12, characterised in that the circumference of the centrifugal chamber (20) has motion-retarding means (25) for retarding the motion of the solid or liquid particulate material separated by centrifugal separation, towards the overflow.
Claim 15
Independent Claim
49 words
An apparatus as claimed in any one of claims 10-13, characterised in that the centrifugal chamber (20, 50) is connected to or provided with blade or vane means (24, 63) adapted to be actuated by the incoming conveying air to impart rotary motion to the centrifugal chamber (20, 50).
Claim 16
Independent Claim
54 words
An apparatus as claimed in any one of claims 10-14, characterised in that a conveying device (62, 64) comprising a conveying screw or at least one oblique vane (63) is provided in the centrifugal chamber and is adapted to rotate relative thereto for supporting the movement of the material separated therein tcwards the overflow.
References Cited (Backward Citations)
GB787250A
Cited
US2923574A
Cited
AU421411B2
Cited
FR2036252A5
Cited
FR2060807A5
Cited
EP0061335A1
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.