EP0077162A2 - Feststoffmischer - Google Patents

Feststoffmischer Download PDF

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Publication number
EP0077162A2
EP0077162A2 EP82305262A EP82305262A EP0077162A2 EP 0077162 A2 EP0077162 A2 EP 0077162A2 EP 82305262 A EP82305262 A EP 82305262A EP 82305262 A EP82305262 A EP 82305262A EP 0077162 A2 EP0077162 A2 EP 0077162A2
Authority
EP
European Patent Office
Prior art keywords
container
drive shaft
axis
longitudinal axis
standard
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.)
Withdrawn
Application number
EP82305262A
Other languages
English (en)
French (fr)
Other versions
EP0077162A3 (de
Inventor
Ronald N. Salzman
William C. Luehm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SPX Technologies Inc
Original Assignee
General Signal Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by General Signal Corp filed Critical General Signal Corp
Publication of EP0077162A2 publication Critical patent/EP0077162A2/de
Publication of EP0077162A3 publication Critical patent/EP0077162A3/de
Withdrawn legal-status Critical Current

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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
    • B01F29/20—Mixers with rotating receptacles with 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
    • B01F29/30—Mixing the contents of individual packages or containers, e.g. by rotating tins or bottles
    • B01F29/32—Containers specially adapted for coupling to rotating frames or the like; Coupling means therefor
    • 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
    • B01F29/64—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers with stirring devices moving in relation to the receptacle, e.g. rotating

Definitions

  • the present invention relates to solids mixing apparatus for mixing or blending solid particulate material and particularly mixing machines in which solids carried in portable containers may be mixed while in their containers.
  • the invention is especially suitable for mixing powders and other solid particulate material, both coarse and fine.
  • the containers may be shipping containers or process containers in which the solids are transported. Liquids may also be mixed with the particulate material in mixing machines in accordance with the invention and vacuum drying with or without heat transfer may be applied.
  • solids mixing apparatus in accordance with the invention has a drive station in which a drive shaft is fixed to rotate about a horizontal axis.
  • a portable container in which the solids to be mixed are carried has top, bottom and side walls.
  • the container usually has a cylindrical cross-section, but may also have a rectilinear cross-section.
  • the longitudinal axis of the container extends in a direction between the top and bottom of the container.
  • Clamp means attach the container to the drive shaft for rotation about the horizontal axis.
  • the clamp means incorporates a standard which is connected to the container's side wall and has an axis which intersects the longitudinal axis at an angle less than 90 degrees (such that the longitudinal axis of the container is tilted at an angle other than normal to the horizontal axis while the container revolves about that horizontal axis.
  • the particulate material in the container executes a symmetric wobble motion which is approximately an "X" when the horizontal axis intersects the longitudinal axis midway between the top and bottom of the container.
  • the sliding and spilling action of the material causes rapid thorough mixing (blending) without segregation of any species of material as in the corners of the container.
  • a "Y" motion may be obtained when the horizontal axis intersects the longitudinal axis of rotation at the point offset from the midpoint between the top and bottom of the container.
  • FIGs. 1 through 4 there is shown a mixing machine 10 which is adapted to mix particulate material in a container l2.
  • the container 12 is portable and may be a cylindrical drum, for example about 18 inches tall and 12 inches in diameter.
  • the container may be carried manually by handles 14.
  • the container is closed at its bottom and 16 and sealed by a cover at its top end 18.
  • the longitudinal axis 20 of the cylinder is perpendicular to its top and bottom 16 and 18 and extends therebetween.
  • the container is revolved by a system of coaxial drive shafts 22 and 24. These drive shafts are driven from a drive station 26 which contains motors, a speed reducer and bearings which provide the necessary support for the drive shaft system.
  • the outer drive shaft 22 which revolves the container is a generally cylindrical bell housing with a collar 28.
  • the collar has alignment pins 30 therein which project horizontally from the end of the collar 28 which faces the container 12.
  • the drive shaft has a horizontal axis 32 and is fixed to rotate about that axis. The rotation may either be clockwise or counter-clockwise.
  • clamping means 34 is provided.
  • This clamping means is a standard 36 having two sections 36a and 36b which extend from the side wall of the container 12 at diametrically opposite locations.
  • the standards are rectangular in cross sections and have a central axis which is coincident with the horizontal axis 32 when the container is mounted on the drive shaft 22 the end of the standard section 36a is closed by a plate 38.
  • the plate 38 has holes 40 for receiving the alignment pins 30.
  • Stiffener plates 42 connecting the side wall of the container 12 to the top of the standard section 36a, provide additional support.
  • the other standard 36b is also closed by a rectangular plate 44 at its outer end.
  • Plates 46 and 48 which are curved along an edge in order to conform to the cylindrical shape of the side wall of the container 12,-are attached to the standard. These plates 46 and 48 are in a horizontal plane coincident with the horizontal axis 32.
  • the plates 46 and 48 have holes 50 and 52.
  • Attached to the drive shaft 22 are plates 54 and 56 on which are mounted toggle linkages including hook links 58 and 60 which are pivotly mounted on actuator links 62 and 64. When the hook links 58 and 60 are inserted into the holes 50 and 52 and the links 62 and 64 brought down, the standards and the containers are pulled towards the shaft 22 and locked thereon.
  • Pins 66 and 68 extend through posts on the plate 54 and 56 so as to hold the lever links 62 and 64 down when the container is in place.
  • the container accepts a process or mixing bar 80, best shown in FIG. 3.
  • Mixing impellers 80 and 84 extend radially from the mixer bar 80.
  • the mixer bar has a shaft extension 86 which is keyed at 88 to one- half of a coupling 90. The other half of the coupling 92 is attached to the center shaft 24 of the drive shaft system.
  • the mixer bar is a cylindrical rod which is journaled in bearings 94 and 96 which are attached to the end plates 38 and 44 of the standard sections 36a and 36b. These bearings 94 and 96 may be sleeve bearings, as shown, or ball bearings.
  • a seal assembly 100 is attached inside the standard section 36a to the end plate 38a.
  • a similar seal assembly 102 is attached to the end plate 44 of the other standard section 36b.
  • the seal assembly 100 is typical and includes a collar 104.
  • the end of the collar inside the container 12 has a V seal 106.
  • Another seal 108 surrounds the mixer shaft in the end plate 38.
  • the container is still between 60 to 70 percent full as measured along its central longitudinal axis 20.
  • the coupling section 90 and 92 fit together.
  • the container is then revolved about the horizontal axis.
  • the horizontal axis 32 and the longitudinal axis 20 of the container intersect at a point approximately midway between the top and the bottom 18 and 16 of the container.
  • the container executes a motion which traces an "X" symmetric about the intersection of the axes 20 and 32.
  • the horizontal axis may be offset somewhat, for example 10 to 20 percent of the diameter of the container 12, either above or below the mid-point of the longitudinal axis 20.
  • the symmetric wobble motion of the container has a translational component and the motion traces a "Y". Due to this motion, "X" or "Y", there is a sliding and spilling action internally of the container of the material therein. This causes a rapid blending or mixing of the particles whether fine or coarse.
  • the speed of rotation may be up to the speed at which centrifuging of the particulate material therein occurs.
  • the symmetric wobble motion back and forth prevents any stagnation regions from being set within the container 12. Accordingly, thorough blending or mixing occurs.
  • the dashed lines 120 indicate the outline of an enclosure for the drive station of the solids mixing machine 122.
  • the drive shaft 126 extends from the drive station and rotates about a fixed, horizontal axis.
  • a bearing housing 128 supports in a cantilever manner, the drive shaft 126 and a speed reducer assembly 130.
  • a structure of I-beams 132, including an angled bracing beam 134 supports the bearing housing.
  • a rod and turnbuckle 136 braces the gear reducer 130.
  • a low speed motor 138 and a high speed motor 140 are attached to the reducer 130.
  • Belt and pulley drives 142 and 144 transfer torque from the motors 138 and 140 to the reducer.
  • the reducer is held from rotating by a rod and turnbuckle 136.
  • Shafts in the bearing housing 128 transfer the power from the low speed motor to the outer one of two coaxial shafts of the drive shaft system 126.
  • the high speed motor 140 drives the inner shaft of the shaft assembly 126.
  • the arrangement of shafts in the drive shaft assembly 126 may be similar to that shown in FIG. 3.
  • the container 150 of the mixing machine 122 may be much larger than the container 12 of the mixing machine 10 shown in FIGS. 1 through 4.
  • the container 150 may be cylindrical or rectilinear in cross-sectional shape and has top and bottom walls 152 and 154 and side walls 156.
  • Standards 160 and 162 of a design similar to the standards 36a and 36b are integrally attached to the container side walls 156. These standards may be on diametrically opposite locations on the walls 156.
  • the central axis 164 through the standards 160 and 162 extends through the center of the container 156 and intersects the longitudinal axis 166 thereof.
  • a mixing bar similar to the bar 80 may be journaled in the standards 160 and 162.
  • a coupling 168 at the end of the standard 160 is adapted to engage a coupling on the inner drive shaft of the drive shaft assembly 126 when the container is tilted and secured in clamp engagement to the shaft assembly 126.
  • clamp means are provided in the form of a column 170 having top and bottom flanges 172 and 174.
  • the bottom flange 174 is tilted at 176 to the column 170.
  • the column itself is inclined at the desired angle of tilt to the horizontal axis of the drive shaft assembly 126. This angle of tilt is preferably 30° to the vertical and 60° to the horizontal axis of the drive shaft assembly 126.
  • a post and brace 178 and 180 provide support for the container 150.
  • a link 182 is attached to a crank 184 by a gear mechanism mounted in the shaft assembly 126. When the crank is rotated the link 180 is drawn in thereby tilting the lower flange 174 to the position shown in dash lines.
  • the upper flange 172 is reciprocally mounted on the column 170. Further rotation of the crank transfers motion through a gear and rack assembly (not shown) to pull the top flange 170 down to the position shown by the dash lines, after the container is tilted by the pivoting of the lower flange 174. The upper flange then clamps the container in place with its axis at the desired angle to the vertical.
  • the intersection of the drive shaft axis and the longitudinal axis 166 may be at the midpoint between the top and the bottom 152 and 154 of the container so that "X" motion symmetric about the intersection may result.
  • Such symmetric motion may be more preferable to "Y” motion, inasmuch as additional torque and bearing support will be needed for the translational component of force exerted on the drive shaft and bearing housing 128 by the large container 150 loaded with material to be mixed, over what is needed for "X" motion.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
EP82305262A 1981-10-09 1982-10-04 Feststoffmischer Withdrawn EP0077162A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31015281A 1981-10-09 1981-10-09
US310152 1981-10-09

Publications (2)

Publication Number Publication Date
EP0077162A2 true EP0077162A2 (de) 1983-04-20
EP0077162A3 EP0077162A3 (de) 1984-08-01

Family

ID=23201218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82305262A Withdrawn EP0077162A3 (de) 1981-10-09 1982-10-04 Feststoffmischer

Country Status (1)

Country Link
EP (1) EP0077162A3 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0274629A3 (en) * 1987-01-12 1988-09-21 Lorenz Ing. Grad. Bohle Gravity mixer
WO1997002089A1 (es) * 1995-07-05 1997-01-23 Nikolai Boldetsov Mezclador universal
CN101462029B (zh) * 2007-12-20 2014-09-03 戴长虹 物料混合搅拌机
CN105797819A (zh) * 2012-03-30 2016-07-27 斯科特·L·默里 机械剥落装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR875166A (de) * 1942-09-09
US3374584A (en) * 1965-06-30 1968-03-26 Us Stoneware Inc Drum-tumbler holder
GB1131097A (en) * 1966-08-26 1968-10-23 Foster Yates & Thom Ltd Improvements relating to opening and mixing machines
US4146335A (en) * 1978-03-20 1979-03-27 General Signal Corporation Containerized solids mixing machine
FR2462204A1 (fr) * 1979-07-25 1981-02-13 Marot Ste Nle Emile Nettoyeur calibreur de grains de cereales a crible rotatif

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0274629A3 (en) * 1987-01-12 1988-09-21 Lorenz Ing. Grad. Bohle Gravity mixer
WO1997002089A1 (es) * 1995-07-05 1997-01-23 Nikolai Boldetsov Mezclador universal
CN101462029B (zh) * 2007-12-20 2014-09-03 戴长虹 物料混合搅拌机
CN105797819A (zh) * 2012-03-30 2016-07-27 斯科特·L·默里 机械剥落装置
US10189025B2 (en) * 2012-03-30 2019-01-29 Xg Sciences, Inc. Cam assembly comprising cylindrical housing
US10300492B2 (en) 2012-03-30 2019-05-28 Xg Sciences, Inc. Method for mechanical exfoliation of particulate materials
US10322415B2 (en) 2012-03-30 2019-06-18 Xg Sciences, Inc. Process of forming a composition with an apparatus for mechanical exfoliation of particulate materials
US10384211B2 (en) 2012-03-30 2019-08-20 Xg Sciences, Inc. Ring gear of a mechanical exfoliation apparatus

Also Published As

Publication number Publication date
EP0077162A3 (de) 1984-08-01

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Effective date: 19850402

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Inventor name: SALZMAN, RONALD N.

Inventor name: LUEHM, WILLIAM C.