US3924835A - Mixer for particulate materials - Google Patents

Mixer for particulate materials Download PDF

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Publication number
US3924835A
US3924835A US410248A US41024873A US3924835A US 3924835 A US3924835 A US 3924835A US 410248 A US410248 A US 410248A US 41024873 A US41024873 A US 41024873A US 3924835 A US3924835 A US 3924835A
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United States
Prior art keywords
vessel
paddle
sections
tool
shafts
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Expired - Lifetime
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US410248A
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English (en)
Inventor
Peter Hohnfeld
Hartmut Langenberg
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.)
Dierks and Soehne GmbH and Co KG
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Dierks and Soehne GmbH and Co KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
    • B01F27/2123—Shafts with both stirring means and feeding or discharging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
    • B01F27/704—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with stirrers facing each other, i.e. supported by opposite walls of the receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10—Maintenance of mixers

Definitions

  • the present invention relates to a mixing machine for the continuous mixing and preparation of particulate materials such as powders and granular or small-sized aggregate products.
  • the machine in accordance with the invention is primarily characterised in that the tool carrier shaft consists of two axially aligned, independent shaft sections, those of whose ends which are disposed away from one another and outside the mixing chamber are equipped with single-ended bearings, can be separately driven and are fitted with tool sets arranged on them in an exchangeable fashion.
  • each shaft section will be capable of speed variation and/or versible.
  • the mixer vessel can furthermore advantageously consist of at least two vessel section with radial separating places, a main separating plane being disposed between adjoining vessel sections, in fact between the internal ends of the shaft sections.
  • a further embodiment of the invention is characterised in that one of the two machine sections located in one side of the main separating plane or joint plane, is supported in such a fashion as to be capable of opposite axial displacement relatively to the other, or, instead of this or in addition thereto, is supported in such a fashion as to be capable of pivoting about a tilting axis disposed parallel to and an interval from the common axis of the shaft sections.
  • This kind of design makes it possible to achieve a rapid access to the shaft sections and to the tool sets arranged thereon, so that quick and easy cleaning, repair and resetting operations can be carried out.
  • the tool sets will preferentially comprise a substan tially ring-shaped hub which can be slid on to the associated shaft section, which hub is provided on its end face with drive pins and bores, so that in each case adjacent shaft section mounted hubs can be coupled to one another, the hubs of the tool sets arranged in each case on a shaft section, in each case forming a casing or envelope surrounding the shaft.
  • the particular hub located nearest to the external end of a shaft section can be in driving engagement with the shaft through the agency of a spring ring element, and thus form the initial element from which the rotational drive is consecutively transmitted to the hubs of the tool sets.
  • the hub in each case assigned to the internal end of a shaft section embraces an end cap fitted over the shaft end, and is attached to the shaft end through a set of axial screws distributed around the shaft axis.
  • the axial screws which perform their securing function even if the directions of rotation are opposite, constitute fixing elements by which all the hubs arranged upon a shaft section are held together and maintained in a mutual driving relationship.
  • the shaft section here simply performs a supporting function so that the tool set, on the lease of the cap-like hub of the particular innermost tool set, can all be rapidly withdrawn from the shaft and re-assembled on it again in any arbitrary order or arrangement, and this also includes the possibility of mutual angular stagger in the circumferential sense.
  • At least some of the tool sets will have paddles or blades with a certain angle of incidence, not unlike a propeller, this in a manner known per se.
  • the position of the tool paddles or blades within a tool set will conveniently be the same throughout.
  • hub rings simply acting as spacers and tool sets whose blades do not exhibit any angle of incidence, it is possible within the machine to build up tool set groups which are optimally matched to the particular special conditions governing synthetic materials which require mixing, in the mixer chamber of the vessel flow conditions being developed, in a state of continuous material transfer, which satisfy all requirements of the particular case.
  • FIG. 1 is a simplified side elevation of a mixing machine embodying the invention
  • FIG. 2 is a plan view of the machine shown in FIG. 1;
  • FIG. 3 is an end elevation of the machine shown in FIGS. 1 and 2;
  • FIG. 4 is an end elevation similar to FIG. 3, of part of the machine along the line IVIV in FIG. 2, and
  • FIG. 5 is a longitudinal section through the mixer vessel on the line VV of FIG. 2.
  • the machine illustrated in the drawing has a cylindrical mixer vessel 1 having a top inlet connection 2 at one end and a bottom discharge connection 3 at its other end.
  • the vessel 1 has its central axis 4 horizontal.
  • the mixer vessel 1 is composed of four vessel sections, 5, 6, 7 and 8.
  • the two central sections 6, 7 are joined together about a central plane which is substantially normal to the axis 4, i.e. the plane is radially disposed.
  • the vessel end sections 5 and 8, which adjoin the sections 6, 7 about radial planes, 10, 11, constitute input and discharge zones of the mixer chamber respectively.
  • the two end sections 5, 8 are attached to bearing units 12 and 13, by flange connections.
  • the mixer vessel 1 has a double-wall construction, so that heating media or coolants can flow in a space between the two walls. It is advantageous for each section 5, 6, 7 and 8 to be a double-wall unit which is equipped with its own separate heating agent or coolant connections (not shown). The vessel sections can then be supplied with heating media or coolant individually to enable differential control of the temperature of the internal walls of the vessel 1 along its length.
  • the machine incorporates a tool carrier consisting of two colinear shaft sections 14, whose common axis coincides with the axis 4.
  • the two shaft sections 14, 15 are mounted in single-ended fashion in the bearing units 12, 13 at their opposite ends which are located outside the mixer chamber.
  • the inner portions of the shaft sections 14, 15 are consequently cantilevered from the units 12, 13.
  • the two shaft sections 14, 15 are in each case driven independently of one another.
  • each shaft section is assigned a separate drive motor 16, 17 whose speed and/or direction of rotation can be changed.
  • Output shaft of the motors 16, 17 carry pulleys 18, 19 and drive belts 20, 21 pass around these pulleys and pulleys 22, 23 on the outermost ends of the shaft sections 14, 15.
  • Alternative drive transmissions could be provided instead of belts and pulleys, if preferred.
  • the bearing unit 12 is permanently fixed upon a common machine frame 24.
  • Bearing unit 13 is supported thereon by a mounting which permits of limited axial displacement as well as transverse tilting of the unit 13.
  • the mounting includes a table 25 carrying the bearing unit 13, and the table has a bearing bush 26 attached to its underside.
  • the brush 26 can slide to and fro longitudinally on a bearing cylinder 27 in the direction of the arrow 28.
  • the bush 26, and with it the table 25 is able to pivot about the axis 29 of the bearing cylinder 27.
  • the bearing axis 29 is disposed parallel to but spaced from the central axis 4 of the mixer vessel and the shaft sections 14, 15, but coincides with the shaft axis of the drive motor 17 and the axis of the pulley 19.
  • Axial displacement can be produced by a pneumatic or hydraulic actuator, or by a spindle adjuster mechanism.
  • a spindle drive for axial adjustment has been indicated in FIG, 4 simply by a handcrank 30.
  • a spindle drive mechanism 31 equipped with a handwheel 32 is shown.
  • This mechanism too, can be replaced by alternative drive arrangements, such as exemplified above in connection with the axial adjustment.
  • a mounting plate 34 on the machine frame 24 is used, as seen in FIG. 4.
  • the parts of the machine section located (in FIG. 1) to the right of the central plane 9 can be displaced slightly to the right in the direction of the arrow 28 and then swung out of the way so that the vessel interior is quickly and easily ac cessible.
  • axial displacement simply serves to clear mutual centring engagement between the vessel sections 6, 7 so that the ensuing pivoting motion can take place. It would be possible, however, simply to displace the entire machine section disposed to one side of the central plane 9 (in FIG. 1), axially along a suitably dimensioned slide way rather than to tilt, as described above, in order to move apart the adjacent ends of the vessel sections 6, 7, apart for access to the machine interior.
  • both bearing units 12, 13 can be slidable and/or pivotable.
  • the innermost ends of the shaft sections l4, 15 are close to gether but are slightly spaced apart, terminating at either side of the main plane 9.
  • a plurality of tool sets 35, 36, 37, 38 and 25, 36', 37', 38 and 39', which will be described in more detail hereinafter, are carried by the two shaft sections l4, 15 respectively.
  • the tool set 35 located closest to the outer end of the shaft section 14, has an annular hub 40 slipped over the shaft section 14 and is secured thereto in a rotational driving relationship by means of a spring ring element, details of which are omitted for clarity.
  • Four tool blades or paddles 41 are fitted to the hub 40, the paddles being spaced apart at intervals around the hub periphery.
  • the tool blades or paddles 41 as illustrated, are skewed, relative to a radial plane through the hub 40 and have symmetrical triangular prismatic crosssections, in the manner of a propeller. Accordingly the paddles impart to incoming material to be mixed a component of motion directed in the main transfer direction D when shaft section 14 is rotated. At or close to its left-hand end (in FIG.
  • the hub 40 has a set of four terminal tool blades 42 uniformly distributed about its periphery.
  • the blades 42 have a symmetrical triangular prismatic cross-section and each has a flat side 43 disposed in a radial plane normal to the axis 4.
  • each of the tool blades 42 always exerts upon incoming material a driving force in the main transfer direction D, irrespective of the particular direction of rotation of the shaft section 14.
  • the blades 42 constitute clearing elements which keep the terminal plate 44 of the mixing chamber 45 free of material being mixed.
  • the tool set 36 also has an annular hub 46 which is simply slipped on to the shaft section 14 but is not in driving engagement therewith, however. Instead, the hub 46 is driven by the first hub 40.
  • axial drive pins transmit drive from the neighbouring hub 40, to hub 46, the pins engaging in corresponding bores in the hub 40 and in the hub 46.
  • numerous drive pins and corresponding bores will be preferred because this makes it possible to stagger the hubs and their blades circumferentially in relation to one another.
  • the hub 46 carries a group of blades or paddles 41 akin to the paddles on the first hub 40 and also skew-orien tated.
  • This tool set comprises a hub 47 which once again carries four tool blades 48, the blades 48 being circumferentially staggered relative to the blades of tool set 36. Like all the tool blades, blades 48 extend almost to the internal wall of the vessel 1.
  • the tool blades 48 here have a skew, or angle of incidence corresponding to that of the tool blades 41.
  • the tool set 38 which then follows, likewise has an annular hub 49 identical to hub 47 but carrying at its circumference a set of tool blades 50 which are oppositely skewed relative to the blades 41. Express reference is made to the drawing for the angles of incidence of the blades of the different groups thereof.
  • the tool blades 50 are identical in configuration to those 48. Again, between the hubs 47, 49 and 47, 46, there is the drive pin connection of the form already described, this being shown in the cut-away illustration of FIG. 5. Here, the drive pins 51 can clearly be seen.
  • FIG. 5 clearly shows, the other tool sets on the shaft section 14 proceeding inwardly in the direction of the main plane 9, alternate in type between the designs of the tool sets 37 and 38.
  • the innermost tool set 39 also possesses a hub 52 and, united therewith and embracing the innermost end of the shaft section 14, a cap or cover 53.
  • the cap 53 is attached to the internal end of the shaft section so that the tool set 39, with its hub and cap portion, secures all the assembled row of tool sets on this shaft section.
  • the circumference of the hub 52 carries blades 54 which correspond to those 50 of the tool set 38.
  • the design of the tool sets on the shaft section is similar to that employed in respect of the shaft section 14, so that as far as the illustration of the parts in the drawing is concerned, no .further explanation is required here.
  • the tool sets on the shaft section 15 are disposed in a mirror symmetrical arrangement, about the main plane 9, in relation to those on the shaft section 14.
  • One exception here, however, is the tool set 39' whose blades 55 have a skew or angle of incidence which is identical to that of the blades 54 of the tool set 39. In this fashion, straight forward transfer of material from the vessel section 6, to the left of the main plane to the vessel section 7 located at the right thereof, is ensured.
  • the hubs of the tool sets arranged on the shaft sections 14, 15 together form a casing surrounding the shaft sections.
  • the shaft sections simply perform a supporting function and are not in rotary engagement with each of the tool sets.
  • This design is not only particularly simple constructionally and cheap to manufacture, but also makes possible rapid assembling, and dismantling of the tool sets.
  • the mixing vessel can be constructed from several part-cylindrical sections, in accordance with German Patent application No. 17821 15, which corresponds to US. Pat. No. 3,722,831, which defines communicating mixing chamber sections combined to form an overall mixing chamber through a mechanism of mutual material transfer, in which mixing chamber sections there is in each case a separate tool carrier shaft with tool sets.
  • the two mixing chamber sections will conveniently be disposed horizontally adjacent one another, the machine then not having one cylindrical mix ing vessel 1 but for example an overall vessel made up of two part-cylindrical vessels. Within each part vessel, the arrangement and embodiment of components described in FIG. 5, would then be retained.
  • a machine for the continuous mixing of particulate materials comprising:
  • paddle tools for rotation in said vessel mounted on said tool carrier, said paddle tools including paddles which extend radially towards and terminate adjacent an inner wall of said vessel,
  • said tools being detachably mounted on said tool carrier, and said tool carrier comprising two independent shafts disposed in line with one end of each shaft projecting outwardly from an associated end of said vessel,
  • said mixer vessel comprises at least two vessel sections which meet at a radial joint plane, adjacent inner ends of said tool shafts being disposed on either side of said joint plane,
  • portion of said machine is located to one side of said joint plane, and means for supporting said portion for axial shifting movement relative to the remainder of said machine on the opposite side of said plane to allow access to the interior of sai'd'vessel and pivotal movement relative to the remainder of said machine on the opposite side of said plane to allow access to the interior of said vessel, the axis of movement of pivotal portion being disposed parallel to and spaced from the common axis of the aligned tool carrier shafts.
  • said mixing vessel includes four vessel sections, two middle sections thereof adjoining one another at said joint plane, and the remaining two vessel sections respectively clefining feed and discharge zones at the opposite ends bf -5' said mixing vessel.
  • a machine according to claim 1 characterised in that at least some of said paddle tools have skewed pro- 8 peller-like paddle blades for imparting linear motion to material being mixed when said tool carrier is rotated.
  • a machine wherein said paddle tools have paddle blades, said blades of the paddle tools mounted nearest to the outer end of each shaft each have a symmetrical triangular prismatic cross-section. one face thereof lying in a radial plane.
  • a machine wherein at least a part of the paddle blades mounted on said shaft are oriented oppositely with respect to another part of said paddle blades mounted on said shaft.
  • said mixing vessel comprises a plurality of part-cylindrical sections which define communicating mixing chamber sections and are combined into an overall mixing chamber to produce mutual material transfer.
  • paddle tools are mounted on a plurality of separate contiguous hubs, each hub serving as a detachable mounting for a plurality of paddle tools, each hub having pin-andhole drive coupling means confronting an adjacent hub to drivingly and detachably connect a pair of adjacent hubs, the hub mounted closest to the axial end of said vessel being drivingly connected to one of said carrier shafts, drive means and a cap mounted on the free end of each one of said shafts for retaining said plurality of hubs thereon.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
US410248A 1972-10-28 1973-10-26 Mixer for particulate materials Expired - Lifetime US3924835A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2252996A DE2252996A1 (de) 1972-10-28 1972-10-28 Maschine zum kontinuierlichen mischen und aufbereiten von pulverigen, koernigen oder kleinstueckigen massen

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US3924835A true US3924835A (en) 1975-12-09

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DE (1) DE2252996A1 (de)
GB (1) GB1416567A (de)
IT (1) IT995844B (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4615664A (en) * 1983-10-05 1986-10-07 Hermann Berstorff Maschinenbau Gmbh Apparatus for producing expanded thermoplastic materials
EP0805008A1 (de) * 1996-05-02 1997-11-05 C.M.P. Costruzioni Meccaniche Pomponesco S.p.A. Klebevorrichtung für Holzverbundplatten-Herstellungsanlagen, und Anlage zu ihrer Anwendung
WO2001088627A1 (en) * 2000-05-17 2001-11-22 Heidelberg Digital L.L.C. Electrostatographic blender assembly and method
EP1623754A1 (de) * 2004-08-06 2006-02-08 LOGIC-Logistic Consult Ingenieurgesellschaft mbH Verfahren und Vorrichtung zur Aufbereitung von Erdstoffen
US20100110821A1 (en) * 2007-04-18 2010-05-06 Paolo Galleti Mixture for concrete and similar mixtures allowing an easy and fast maintenance
US20110128812A1 (en) * 2008-06-19 2011-06-02 Ludwig Eckart Multiple-screw extruder
JP2013047593A (ja) * 2011-08-29 2013-03-07 Hildebrand Kk バイオマスボイラーシステム
JP2013047592A (ja) * 2011-08-29 2013-03-07 Hildebrand Kk 攪拌乾燥装置
JP2014054583A (ja) * 2012-09-11 2014-03-27 Kitagawa Iron Works Co Ltd 混合手段を備える連続式混合装置
JP2014097466A (ja) * 2012-11-15 2014-05-29 Kayaba Ind Co Ltd 混合機
WO2017085211A1 (en) * 2015-11-20 2017-05-26 Tetra Laval Holdings & Finance S.A. Apparatus for producing a food product
US20170181444A1 (en) * 2015-12-28 2017-06-29 Tetra Laval Holdings & Finance S.A. Apparatus for producing a food product
US20170333851A1 (en) * 2016-05-20 2017-11-23 Superior Industries, Inc. Aggregate attrition systems, methods, and apparatus
EP4005663A1 (de) * 2020-11-26 2022-06-01 Fette Compacting GmbH Pulvermischer für ein system zur kontinuierlichen verarbeitung von pulverprodukten
US12064901B2 (en) 2016-03-01 2024-08-20 Sika Technology Ag Mixer, system for applying a building material and method for producing a structure from building material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115304433B (zh) * 2022-01-13 2023-12-19 江西宜丰国泰化工有限责任公司 一种实现高效率混合的炸药生产用动态混合器
CN114588802B (zh) * 2022-03-07 2023-04-25 北京味粒子科技有限公司 自动混料装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US444470A (en) * 1891-01-13 Molasses-mixer
US917206A (en) * 1908-12-04 1909-04-06 Charles James Watts Circulator.
US1017820A (en) * 1911-07-24 1912-02-20 Henry M Svebilius Propeller.
US1385484A (en) * 1919-06-16 1921-07-26 Simon Gottschall Compartment-box
US1467537A (en) * 1921-03-31 1923-09-11 Firm Dornier Metallbauten Gmbh Air propeller
US2010579A (en) * 1931-01-27 1935-08-06 Mack D Broadfield Acidulating unit
US3526467A (en) * 1968-08-23 1970-09-01 Chemineer Agitator impeller
US3652062A (en) * 1968-04-08 1972-03-28 Oakes Corp E T Mixing apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US444470A (en) * 1891-01-13 Molasses-mixer
US917206A (en) * 1908-12-04 1909-04-06 Charles James Watts Circulator.
US1017820A (en) * 1911-07-24 1912-02-20 Henry M Svebilius Propeller.
US1385484A (en) * 1919-06-16 1921-07-26 Simon Gottschall Compartment-box
US1467537A (en) * 1921-03-31 1923-09-11 Firm Dornier Metallbauten Gmbh Air propeller
US2010579A (en) * 1931-01-27 1935-08-06 Mack D Broadfield Acidulating unit
US3652062A (en) * 1968-04-08 1972-03-28 Oakes Corp E T Mixing apparatus
US3526467A (en) * 1968-08-23 1970-09-01 Chemineer Agitator impeller

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4615664A (en) * 1983-10-05 1986-10-07 Hermann Berstorff Maschinenbau Gmbh Apparatus for producing expanded thermoplastic materials
EP0805008A1 (de) * 1996-05-02 1997-11-05 C.M.P. Costruzioni Meccaniche Pomponesco S.p.A. Klebevorrichtung für Holzverbundplatten-Herstellungsanlagen, und Anlage zu ihrer Anwendung
WO2001088627A1 (en) * 2000-05-17 2001-11-22 Heidelberg Digital L.L.C. Electrostatographic blender assembly and method
US6585406B2 (en) 2000-05-17 2003-07-01 Heidelberger Druckmaschinen Ag Electrostatographic blender assembly and method
EP1623754A1 (de) * 2004-08-06 2006-02-08 LOGIC-Logistic Consult Ingenieurgesellschaft mbH Verfahren und Vorrichtung zur Aufbereitung von Erdstoffen
US20100110821A1 (en) * 2007-04-18 2010-05-06 Paolo Galleti Mixture for concrete and similar mixtures allowing an easy and fast maintenance
US8459864B2 (en) * 2007-04-18 2013-06-11 Officine Meccaniche Galletti O.M.G. Srl Mixture for concrete and similar mixtures allowing an easy and fast maintenance
US9205619B2 (en) * 2008-06-19 2015-12-08 Brückner Maschinenbau GmbH & Co. KG Multiple-screw extruder
US20110128812A1 (en) * 2008-06-19 2011-06-02 Ludwig Eckart Multiple-screw extruder
JP2013047593A (ja) * 2011-08-29 2013-03-07 Hildebrand Kk バイオマスボイラーシステム
JP2013047592A (ja) * 2011-08-29 2013-03-07 Hildebrand Kk 攪拌乾燥装置
JP2014054583A (ja) * 2012-09-11 2014-03-27 Kitagawa Iron Works Co Ltd 混合手段を備える連続式混合装置
JP2014097466A (ja) * 2012-11-15 2014-05-29 Kayaba Ind Co Ltd 混合機
WO2017085211A1 (en) * 2015-11-20 2017-05-26 Tetra Laval Holdings & Finance S.A. Apparatus for producing a food product
AU2016354978B2 (en) * 2015-11-20 2021-01-21 Tetra Laval Holdings & Finance S.A. Apparatus for producing a food product
US20170181444A1 (en) * 2015-12-28 2017-06-29 Tetra Laval Holdings & Finance S.A. Apparatus for producing a food product
US12064901B2 (en) 2016-03-01 2024-08-20 Sika Technology Ag Mixer, system for applying a building material and method for producing a structure from building material
US20170333851A1 (en) * 2016-05-20 2017-11-23 Superior Industries, Inc. Aggregate attrition systems, methods, and apparatus
US10967337B2 (en) * 2016-05-20 2021-04-06 Superior Industries, Inc. Aggregate attrition systems, methods, and apparatus
EP4005663A1 (de) * 2020-11-26 2022-06-01 Fette Compacting GmbH Pulvermischer für ein system zur kontinuierlichen verarbeitung von pulverprodukten
JP2022084552A (ja) * 2020-11-26 2022-06-07 フェッテ コンパクティング ゲーエムベーハー 粉体生成物を連続処理するシステムのための粉体ブレンダ

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Publication number Publication date
GB1416567A (en) 1975-12-03
DE2252996A1 (de) 1974-05-09
IT995844B (it) 1975-11-20

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