US2288440A - Mixing apparatus - Google Patents
Mixing apparatus Download PDFInfo
- Publication number
- US2288440A US2288440A US413113A US41311341A US2288440A US 2288440 A US2288440 A US 2288440A US 413113 A US413113 A US 413113A US 41311341 A US41311341 A US 41311341A US 2288440 A US2288440 A US 2288440A
- Authority
- US
- United States
- Prior art keywords
- receptacle
- partition
- mixing apparatus
- materials
- mixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000002156 mixing Methods 0.000 title description 16
- 238000005192 partition Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 12
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000012254 powdered material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/40—Parts or components, e.g. receptacles, feeding or discharging means
- B01F29/401—Receptacles, e.g. provided with liners
- B01F29/4011—Receptacles, e.g. provided with liners characterised by the shape or cross-section of the receptacle, e.g. of Y-, Z -, S -, or X shape
- B01F29/40113—Conical, double-conicalor diabolo shapes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/40—Parts or components, e.g. receptacles, feeding or discharging means
- B01F29/403—Disposition of the rotor axis
- B01F29/4035—Disposition of the rotor axis with a receptacle rotating around two or more axes
- B01F29/40353—Disposition of the rotor axis with a receptacle rotating around two or more axes being perpendicular axes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/60—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers
- B01F29/62—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers without bars, i.e. without mixing elements; characterised by the shape or cross section of the receptacle, e.g. of Y-, Z-, S- or X- shape; with cylindrical receptacles rotating about an axis at an angle to their longitudinal axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/60—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers
- B01F29/63—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers with fixed bars, i.e. stationary, or fixed on the receptacle
Definitions
- This application relates to mixing apparatus, particularly apparatus designed for mixing together or blending dry powders. Specifically, it is an improvement in mixing apparatus known as a double cone blender.
- double cone blenders great difficulty has been had in properly and completely mixing some dry powders together particularly where a small amount of one powdered material was to be mixed with a relatively large amount of another powdered material. It has been found that grains of the material forming the smaller portion of the final mixture tended to agglomerate. Consequently, the material was not evenly distributed throughout the mixture.
- I provide in a double cone blender a foraminous partition which is centrally located and divides approximately one-half of the space within the receptacle. If the double cone blender is then rotated about a transverse axis at the proper speed, the partition acts upon the materials being mixed to prevent agglomeration.
- Figure 1 is an elevation of my mixing apparatus with a portion broken away to show the in- 131 terior of the mixing receptacle
- Figure 2 is a longitudinal section of the mixing receptacle with portions broken away
- Figures 3, 4 and 5 are schematic diagrams showing the function of the partition within the receptacle.
- My mixing apparatus comprises a receptacle generally designated by the reference numeral 6 which holds the materials which are to be mixed.
- This receptacle is in the shape of two cones l and 8 joined at their bases by a short cylinder 9. The apices of the cones are truncated to provide a discharge valve Ill and a charging opening I l.
- the charging opening may be closed by a hinged cover [2.
- Trunnions [3 are secured to opposite sides of the cylinder 9 so that the receptacle may be rotated about a transverse axis.
- the trunnions I3 turn in bearings M which are mounted on stands 15.
- the receptacle is rotated by an electric motor l6 which turns a pinion gear ll.
- the gear I! meshes with a ring gear l8 secured to the periphery of the receptacle.
- Other power transmission systems can be used for rotating the receptacle as a chain drive, direct drive, etc.
- Figure 2 shows the foraminous partition l9 which is positioned within the receptacle 6. It is held firmly in place by angles 20 secured to the inside of the receptacle or by any other suitable means.
- the partition may be made of any suitable material such as wire mesh, flattened expanded metal, perforated plates, etc. The size of the openings in the partition will depend upon the nature of the materials being blended. It is centrally positioned within the receptacle so as to divide a portion of the space within the receptacle into two spaces.
- the partition extends from one side to the other of the receptacle but does not extend the entire length of the receptacle; that is, the entire distance between the apices of the cones forming the receptacle.
- the partition divides one of the cones and the cylinder 9 into two equal spaces and lies in a plane parallel to the axis of rotation.
- Figures 3, 4 and 5 are schematic diagrams showing the function of the partition IS in assisting the mixing of materials within the receptacle.
- a mixing apparatus comprising a receptacle having generally frusto-conical terminal portions joined at their bases by an intermediate generally cylindrical portion, the axes of the terminal and intermediate portions being aligned, means for mounting said receptacle for rotation about an axis transverse to said aligned axes, and a partition member within said receptacle and disposed in a plane substantially parallel to the plane defined by said aligned axes and aid axis of rotation, said partition extending from the small end of one of said frusto-conical terminal portions towards the other frusto-conica] portion and having a free terminal edge within the region of the receptacle enclosed by said cylindrical intermediate portion, said partition engaging throughout its length the Walls of the receptacle.
- a mixing apparatus comprising a receptacle having generally frusto-conical terminal portions joined at their bases by an intermediate generally cylindrical portion, the axes of the terminal and intermediate portions being aligned, means for mounting said receptacle for rotation about an axis transverse to said aligned axes, and a perforated partition member Within said receptacle and disposed in the plane defined by said aligned axes and said axis of rotation, said partition extending from one remote end of one of said frusto-conical terminal portions towards the other frusto-conical portion, and having a free terminal edge Within the region of the receptacle enclosed by said cylindrical intermediate portion, said partition being of a length equal to at least one-half of the longitudinal dimension of the receptacle, and engaging throughout its length the Walls of the receptacle.
Description
.June 30, 1942. 'r. M. EVANS MIXING APPARATUS Filed Oct. 1, 1941 INVENTOR Thomas M. Evans N EN.
Patented June 30, 1942 UNITED STATES PATENT OFFICE 2 Claims.
This application relates to mixing apparatus, particularly apparatus designed for mixing together or blending dry powders. Specifically, it is an improvement in mixing apparatus known as a double cone blender. Heretofore, in using double cone blenders, great difficulty has been had in properly and completely mixing some dry powders together particularly where a small amount of one powdered material was to be mixed with a relatively large amount of another powdered material. It has been found that grains of the material forming the smaller portion of the final mixture tended to agglomerate. Consequently, the material was not evenly distributed throughout the mixture.
I have devised an improved mixing apparatus by which the above described difliculty has been largely eliminated. In accordance with my invention I provide in a double cone blender a foraminous partition which is centrally located and divides approximately one-half of the space within the receptacle. If the double cone blender is then rotated about a transverse axis at the proper speed, the partition acts upon the materials being mixed to prevent agglomeration.
In the accompanying drawing I have described a present preferred embodiment of my invention in which Figure 1 is an elevation of my mixing apparatus with a portion broken away to show the in- 131 terior of the mixing receptacle, and
Figure 2 is a longitudinal section of the mixing receptacle with portions broken away, and
Figures 3, 4 and 5 are schematic diagrams showing the function of the partition within the receptacle.
My mixing apparatus comprises a receptacle generally designated by the reference numeral 6 which holds the materials which are to be mixed. This receptacle is in the shape of two cones l and 8 joined at their bases by a short cylinder 9. The apices of the cones are truncated to provide a discharge valve Ill and a charging opening I l. The charging opening may be closed by a hinged cover [2.
Trunnions [3 are secured to opposite sides of the cylinder 9 so that the receptacle may be rotated about a transverse axis. The trunnions I3 turn in bearings M which are mounted on stands 15. The receptacle is rotated by an electric motor l6 which turns a pinion gear ll. The gear I! meshes with a ring gear l8 secured to the periphery of the receptacle. Other power transmission systems can be used for rotating the receptacle as a chain drive, direct drive, etc.
Figure 2 shows the foraminous partition l9 Which is positioned within the receptacle 6. It is held firmly in place by angles 20 secured to the inside of the receptacle or by any other suitable means. The partition may be made of any suitable material such as wire mesh, flattened expanded metal, perforated plates, etc. The size of the openings in the partition will depend upon the nature of the materials being blended. It is centrally positioned within the receptacle so as to divide a portion of the space within the receptacle into two spaces. The partition extends from one side to the other of the receptacle but does not extend the entire length of the receptacle; that is, the entire distance between the apices of the cones forming the receptacle. Preferably, the partition divides one of the cones and the cylinder 9 into two equal spaces and lies in a plane parallel to the axis of rotation.
Figures 3, 4 and 5 are schematic diagrams showing the function of the partition IS in assisting the mixing of materials within the receptacle. After the materials to be mixed are placed in the receptacle and the receptacle is rotated one complete revolution, the materials will assume the position shown in Figure 3 with an angle of repose indicated at R-R. The receptacle 6 is rotated at such a speed that the materials being mixed will not be held against the sides of the receptacle by centrifugal force. Therefore, as the receptacle is rotated the materials will assume the position shown in Figures 4 and 5, the angle of repose RR remaining the same throughout. Reference to the figures will show that as the receptacle is rotated all of the materials will pass through the partition 19 or will be forced across the surface of the partition to cascade over the open edge of the partition. Agglomerations of particles are broken up in passing across the partition and will pass through it on the next revolution of the receptacle. In this manner, agglomeration of the particles is prevented and complete blending is accomplished.
While I have disclosed only a present preferred embodiment of my invention, it is to be distinctly understood that it may otherwise be variously embodied and practiced within the scope of the following claims:
I claim:
1. A mixing apparatus comprising a receptacle having generally frusto-conical terminal portions joined at their bases by an intermediate generally cylindrical portion, the axes of the terminal and intermediate portions being aligned, means for mounting said receptacle for rotation about an axis transverse to said aligned axes, and a partition member within said receptacle and disposed in a plane substantially parallel to the plane defined by said aligned axes and aid axis of rotation, said partition extending from the small end of one of said frusto-conical terminal portions towards the other frusto-conica] portion and having a free terminal edge within the region of the receptacle enclosed by said cylindrical intermediate portion, said partition engaging throughout its length the Walls of the receptacle.
2. A mixing apparatus comprising a receptacle having generally frusto-conical terminal portions joined at their bases by an intermediate generally cylindrical portion, the axes of the terminal and intermediate portions being aligned, means for mounting said receptacle for rotation about an axis transverse to said aligned axes, and a perforated partition member Within said receptacle and disposed in the plane defined by said aligned axes and said axis of rotation, said partition extending from one remote end of one of said frusto-conical terminal portions towards the other frusto-conical portion, and having a free terminal edge Within the region of the receptacle enclosed by said cylindrical intermediate portion, said partition being of a length equal to at least one-half of the longitudinal dimension of the receptacle, and engaging throughout its length the Walls of the receptacle.
THOMAS M. EVANS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US413113A US2288440A (en) | 1941-10-01 | 1941-10-01 | Mixing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US413113A US2288440A (en) | 1941-10-01 | 1941-10-01 | Mixing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US2288440A true US2288440A (en) | 1942-06-30 |
Family
ID=23635890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US413113A Expired - Lifetime US2288440A (en) | 1941-10-01 | 1941-10-01 | Mixing apparatus |
Country Status (1)
Country | Link |
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US (1) | US2288440A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2441392A (en) * | 1945-02-12 | 1948-05-11 | Paul K Bresee | Combined container and mixer for concrete, mortar, or other building material |
US2514126A (en) * | 1949-12-08 | 1950-07-04 | Patterson Kelley Co | Blending or mixing apparatus |
US2650805A (en) * | 1951-11-07 | 1953-09-01 | Alfred J Schaefer | Rotary blender |
US2838392A (en) * | 1953-07-30 | 1958-06-10 | Sk Wellman Co | Methods and apparatus for treating metallic and non-metallic powders |
US3095185A (en) * | 1958-06-03 | 1963-06-25 | Wm Gardner & Sons Gloucester L | Double cone mixing machines |
US3164378A (en) * | 1962-08-07 | 1965-01-05 | Liberty Nat Bank And Trust Com | Particle blending apparatus |
US3371913A (en) * | 1967-02-14 | 1968-03-05 | John L. Muench Sr. | Mixer |
DE1282610B (en) * | 1963-02-28 | 1968-11-14 | Patterson Ind Inc | Device for mixing goods located in a transportable mixing container |
US20030161213A1 (en) * | 2000-04-23 | 2003-08-28 | Davies Clive Eric | Blender for mixing particulate solid materials including an internal baffle |
CN104759225A (en) * | 2015-04-23 | 2015-07-08 | 方珠康 | All-around movement high-efficiency mixer |
-
1941
- 1941-10-01 US US413113A patent/US2288440A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2441392A (en) * | 1945-02-12 | 1948-05-11 | Paul K Bresee | Combined container and mixer for concrete, mortar, or other building material |
US2514126A (en) * | 1949-12-08 | 1950-07-04 | Patterson Kelley Co | Blending or mixing apparatus |
US2650805A (en) * | 1951-11-07 | 1953-09-01 | Alfred J Schaefer | Rotary blender |
US2838392A (en) * | 1953-07-30 | 1958-06-10 | Sk Wellman Co | Methods and apparatus for treating metallic and non-metallic powders |
US3095185A (en) * | 1958-06-03 | 1963-06-25 | Wm Gardner & Sons Gloucester L | Double cone mixing machines |
US3164378A (en) * | 1962-08-07 | 1965-01-05 | Liberty Nat Bank And Trust Com | Particle blending apparatus |
DE1282610B (en) * | 1963-02-28 | 1968-11-14 | Patterson Ind Inc | Device for mixing goods located in a transportable mixing container |
US3371913A (en) * | 1967-02-14 | 1968-03-05 | John L. Muench Sr. | Mixer |
US20030161213A1 (en) * | 2000-04-23 | 2003-08-28 | Davies Clive Eric | Blender for mixing particulate solid materials including an internal baffle |
US7056010B2 (en) * | 2000-04-23 | 2006-06-06 | Industrial Research Limited | Blender for mixing particulate solid materials including an internal baffle |
CN104759225A (en) * | 2015-04-23 | 2015-07-08 | 方珠康 | All-around movement high-efficiency mixer |
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