Apparatus for pre-treatment and subsequent conveying, plastification or agglomeration of plastic material
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-047/10
B29B-017/04
B01F-015/02
B29B-013/10
B29B-017/00
B29C-047/00
B02C-018/08
B02C-018/12
B02C-018/22
B29K-105/26
출원번호
US-0351653
(2012-10-12)
등록번호
US-9221198
(2015-12-29)
우선권정보
AT-A 1504/2011 (2011-10-14)
국제출원번호
PCT/AT2012/050161
(2012-10-12)
국제공개번호
WO2013/052989
(2013-04-18)
발명자
/ 주소
Feichtinger, Klaus
Hackl, Manfred
출원인 / 주소
EREMA ENGINEERING RECYCLING MASCHINEN UND ANLAGEN GESELLSCHAFT M.B.H.
대리인 / 주소
Kilpatrick Townsend and Stockton LLP
인용정보
피인용 횟수 :
0인용 특허 :
21
초록▼
Disclosed is an apparatus for processing plastics, having a mixing implement rotatable around an axis of rotation, wherein, in a side wall, an aperture is formed, through which the plastics material is removed, a conveyor being provided, with a screw rotating in a housing wherein the imaginary conti
Disclosed is an apparatus for processing plastics, having a mixing implement rotatable around an axis of rotation, wherein, in a side wall, an aperture is formed, through which the plastics material is removed, a conveyor being provided, with a screw rotating in a housing wherein the imaginary continuation of the longitudinal axis of the conveyor in a direction opposite to the direction of conveying passes the axis of rotation, and on the outflow side, an offset distance between the longitudinal axis and the radial that is parallel to the longitudinal axis, and the diameter D of the container has the following relationship to the diameter d of the screw: D=10·K·d23, where D is the internal diameter in mm of the containerd is the diameter in mm of the screw andK is a constant which is in the range from 60 to 180.
대표청구항▼
1. An apparatus for the pretreatment and subsequent conveying, plastification or agglomeration of plastics, with a container (1) for the material to be processed, where at least one mixing and/or comminution implement (3) which rotates around an axis (10) of rotation and which is intended for the mi
1. An apparatus for the pretreatment and subsequent conveying, plastification or agglomeration of plastics, with a container (1) for the material to be processed, where at least one mixing and/or comminution implement (3) which rotates around an axis (10) of rotation and which is intended for the mixing, heating and optionally comminution of the plastics material is in the container (1), where an aperture (8) through which the pretreated plastics material can be removed from the interior of the container (1) is formed in a side wall (9) of the container (1) in the region of the level of the, or of the lowest, mixing and/or comminution implement (3) that is closest to a base of the container (1), where at least one conveyor (5), in particular one extruder (5), is provided to receive the pretreated material, and has at least one screw (6) which rotates in a housing (16) and which in particular has plastifying or agglomerating action, where the housing (16) has, located at its end (7) or in its jacket wall, an intake aperture (80) for the material to be received by the screw (6), and there is connection between the intake aperture (80) and the aperture (8),whereinthe imaginary continuation of the central longitudinal axis (15) of the conveyor (5) or of the screw (6) closest to the intake aperture (80), in a direction opposite to the direction (17) of conveying of the conveyor (5), passes, and does not intersect, the axis (10) of rotation, there being, on the outflow side or in the direction (12) of rotation or of movement of the mixing and/or comminution implement (3), an offset distance (18) between the longitudinal axis (15) of the conveyor (5) or of the screw (6) closest to the intake aperture (80), and the radius (11) of the container (1) that is parallel to the longitudinal axis (15) and that proceeds outwards from the axis (10) of rotation of the mixing and/or comminution implement (3) in the direction (17) of conveying of the conveyor (5), and wherein the diameter D of the container (1) has the following relationship to the diameter d of the screw (6): D=10·K·d23,whereD is the internal diameter in mm of a circular-cross-section the cylindrical container (1) or the internal diameter in mm of an imaginary circular-cross-section the cylindrical container (1) which has the same height and is calculated to have the same volume capacity,d is the diameter in mm of the screw (6) or of the screw (6) closest to the intake aperture (80) andK is a constant which is in the range from 60 to 180. 2. The apparatus according to claim 1, wherein the constant K is in the range from 90 to 170. 3. The apparatus according to claim 1, wherein the distance A of the radially outermost point of the lowest mixing and/or comminution implement (3), or the distance A of the circle described by this point, from the inner surface of the side wall (9) of the container (1), is greater than or equal to 20 mm. 4. The apparatus of claim 3, wherein the distance A of the circle described by this point is between 20 mm and 60 mm. 5. The apparatus according to claim 1, wherein, for a conveyor (5) in contact with the container (1), the scalar product of the direction vector that is associated with the direction (19) of rotation and that is tangential to the circle described by the radially outermost point of the mixing and/or comminution implement (3) or that is tangential to the plastics material transported past the aperture (8) and that is normal to a radial (11) of the container (1), and that points in the direction (12) of rotation or of movement of the mixing and/or comminution implement (3) and of the direction vector (17) that is associated with the direction of conveying of the conveyor (5) at each individual point or in the entire region of the aperture (8) or immediately radially prior to the aperture (8) is zero or negative. 6. The apparatus according to claim 1, wherein an angle (α) included between a direction vector that is associated with the direction (19) of rotation of the radially outermost point of the mixing and/or comminution implement (3) and a direction vector (17) that is associated with the direction of conveying of the conveyor (5) is greater than or equal to 90° and smaller than or equal to 180°, measured at the point of intersection of the two direction vectors (17, 19) at the inflow-side edge that is associated with the aperture (8) and that is situated upstream in relation to the direction (12) of rotation or of movement of the mixing and/or comminution implement (3). 7. The apparatus according to claim 6, wherein the angle (α) is measured at the point (20) that is on the said edge or on the aperture (8) and is situated furthest upstream. 8. The apparatus according to claim 1, wherein an angle (β) included between a direction vector (19) that is associated with the direction (12) of rotation or of movement of the mixing and/or comminution implement (3) and a direction vector (17) that is associated with the direction of conveying of the conveyor (5) is from 170° to 180°, measured at the point of intersection of the two direction vectors (17, 19) in the middle of the aperture (8). 9. The apparatus according to claim 1, wherein the offset distance (18) is greater than or equal to half of the internal diameter of the housing (16) of the conveyor (5) or of the screw (6), and/or greater than or equal to 7% of the radius of the container (1), or wherein the offset distance (18) is greater than or equal to the radius of the container (1). 10. The apparatus according to claim 9, wherein the offset distance (18) is greater than or equal to 20% of the radius of the container (1). 11. The apparatus according to claim 1, wherein the imaginary continuation of the longitudinal axis (15) of the conveyor (5) in a direction opposite to the direction of conveying is arranged in the manner of a secant in relation to the cross section of the container (1), and, at least in sections, passes through the space within the container (1). 12. The apparatus according to claim 1, wherein the conveyor (5) is attached tangentially to the container (1) or runs tangentially in relation to the cross section of the container (1), or wherein the longitudinal axis (15) of the conveyor (5) or of the screw (6) or the longitudinal axis of the screw (6) closest to the intake aperture (80) runs tangentially with respect to the inner side of the side wall (9) of the container (1), or the inner wall of the housing (16) does so, or an enveloping end of the screw (6) does so, where there is a drive connected to the end (7) of the screw (6), and that the screw provides conveying, at its opposite end, to a discharge aperture arranged at the end of the housing (16). 13. The apparatus according to claim 12, wherein the discharge aperture includes an extruder head. 14. The apparatus according to claim 1, wherein there is immediate and direct connection between the aperture (8) and the intake aperture (80), without substantial separation, in particular without transfer section or conveying screw. 15. The apparatus according to claim 1, wherein the mixing and/or comminution implement (3) comprises implements and/or blades (14) which, in a direction (12) of rotation or of movement, have a comminuting, cutting and heating effect on the plastics material, where the implements and/or blades (14) are arranged or formed on or at a rotatable implement carrier (13) which is a carrier disc (13) and which is arranged parallel to a basal surface (2) of the container (1). 16. The apparatus according to claim 1, wherein a manner of formation, set-up, curvature and/or arrangement of the frontal regions or frontal edges (22) that are associated with the mixing and/or comminution implements (3) or with the blades (14), act on the plastics material and point in a direction (12) of rotation or of movement, differs when comparison is made with the regions that, in the direction (12) of rotation or of movement, are at the rear or behind. 17. The apparatus according to claim 1, wherein the container (1) is in essence cylindrical with circular cross section and with a level basal surface (2) of the container (1) and with, orientated vertically in relation thereto, a side wall (9) which has the shape of the jacket of a cylinder, and/or the axis (10) of rotation of the mixing and/or comminution implements (3) coincides with the central axis of the container (1), and/or the axis (10) of rotation or the central axis are orientated vertically and/or normally in relation to the basal surface (2). 18. The apparatus according to claim 1, wherein a lowest implement carrier (13) or a lowest of the mixing and/or comminution implements (3) and/or the aperture (8) are arranged close to the base at a small distance from the basal surface (2), in the region of the lowest quarter of the height of the container (1), at a distance of from 10 mm to 400 mm from a basal surface (2) of the container (1). 19. The apparatus according to claim 1, wherein the conveyor (5) is a single-screw extruder (6) with a single compression screw (6).
Bacher, Helmut; Schulz, Helmuth; Wendelin, Georg, Apparatus for pre-treatment and subsequent plastification or agglomeration of synthetic plastic materials.
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