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EP0355813B2 - Mischbehälter - Google Patents
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EP0355813B2 - Mischbehälter - Google Patents

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Publication number
EP0355813B2
EP0355813B2 EP89115576A EP89115576A EP0355813B2 EP 0355813 B2 EP0355813 B2 EP 0355813B2 EP 89115576 A EP89115576 A EP 89115576A EP 89115576 A EP89115576 A EP 89115576A EP 0355813 B2 EP0355813 B2 EP 0355813B2
Authority
EP
European Patent Office
Prior art keywords
mixing
container according
mixing tube
mixing container
absorption
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
Application number
EP89115576A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0355813A3 (en
EP0355813B1 (de
EP0355813A2 (de
Inventor
Harald Dr.-Ing. Wilms
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.)
Zeppelin GmbH
Original Assignee
Zeppelin Metallwerke GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6361678&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0355813(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Zeppelin Metallwerke GmbH filed Critical Zeppelin Metallwerke GmbH
Priority to AT89115576T priority Critical patent/ATE82154T1/de
Publication of EP0355813A2 publication Critical patent/EP0355813A2/de
Publication of EP0355813A3 publication Critical patent/EP0355813A3/de
Application granted granted Critical
Publication of EP0355813B1 publication Critical patent/EP0355813B1/de
Publication of EP0355813B2 publication Critical patent/EP0355813B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/80—Falling particle mixers, e.g. with repeated agitation along a vertical axis
    • B01F25/82—Falling particle mixers, e.g. with repeated agitation along a vertical axis uniting flows of material taken from different parts of a receptacle or from a set of different receptacles
    • B01F25/821—Falling particle mixers, e.g. with repeated agitation along a vertical axis uniting flows of material taken from different parts of a receptacle or from a set of different receptacles by means of conduits having inlet openings at different levels
    • B01F25/8211—Falling particle mixers, e.g. with repeated agitation along a vertical axis uniting flows of material taken from different parts of a receptacle or from a set of different receptacles by means of conduits having inlet openings at different levels by means of a central conduit or central set of conduits

Definitions

  • the invention relates to a mixing container that explained in the preamble of claim 1 Art.
  • Such a mixing container is from GB-A-2 187 652 known.
  • the well-known mixing container is for Subtract even amounts of bulk material Swallow openings designed at different heights.
  • the known Mixing container according to the size of the swallowing openings of a given equation varies such that under lying swallowing openings are smaller than wider swallowing openings at the top.
  • With the well-known Mixing container is therefore the size of each swallow opening precisely defined.
  • Bridging i.e. under certain circumstances can over the opening Support particles of the bulk material against each other in such a way that the passage through this opening is blocked. This bridging becomes vertical standing openings through a correspondingly large dimensioned swallowing opening prevented.
  • Such one Mixing container is for example from FR-A-1 379 212 known. Contains in the known mixing container the inner mixing tube several departments, where each of the departments via a swallow opening communicates with the outer container. The swallowing openings of the individual departments are arranged at different heights, so that the bulk container located in different containers Heights can be subtracted into that Inside the mixing tube and from there with the one remaining in the outer container Bulk falls into a funnel from which it is removed can be. The mixing effect of the known Mixing container is however small.
  • the Diameter of the mixing tube compared to the Inner container diameter not too large in order to achieve a mixing effect at all. Second, it remains above the swallowing openings each an empty room, which is the larger, the further down the swallowing openings are. Thereby valuable storage space is given away. Furthermore the known construction is relatively complex in the manufacture, since the individual chambers in the Mixing tube must be fitted exactly.
  • a mixing container can be seen from US Pat. No. 3,216,629, which is preferred for pneumatic circulation of the bulk material to be mixed is designed.
  • mixing tubes with different designed deflector plates on the inside of the container provided.
  • the mixing tubes point Openings at different heights, either outwards or inwards from Deflector plates are covered.
  • the deflector plates for each opening in the mixing tube same size and cover, due to the relatively small diameter of the mixing tubes, inevitably over half the cross section of this Mixing tubes. It has now been found that with such an arrangement bulk goods predominantly over the bottom swallow opening each Mixing tube would occur.
  • the mixing tube consists of a variety stacked funnels, their outlet openings each at the level of the inlet opening below Funnels are arranged.
  • the funnels are essentially the same size, so that the in the annular heights arranged at different heights Entry openings for the bulk material from the outer Container and the circular openings for the fuel in the interior of the mixing tube are the same size at all heights.
  • this Mixing container also for bulk materials that are not easy to flow can be used, the ring-shaped Swallow openings into the mixing tube accordingly run great. So that about do not bridge the remaining slots this mixing tube construction must be remarkable Assume dimensions.
  • the structure the mixing tube is relatively complicated and expensive.
  • the mixing effect is not optimal, there for a complete mixing additional pneumatic circulation is used becomes.
  • the invention is therefore based on the object to design a mixing container of the type mentioned, that with simple and space-saving constructive Design the mixing result in a predetermined Way to influence.
  • the task is characterized by the Features of claim 1 solved.
  • the invention is based on the knowledge of the applicant that it depends on the size of the Deflector plates covered part of the cross section of the mixing tube depends on how much of the bulk material passes through the assigned swallowing opening. Will now used different sized baffle plates, so the mixing ratio of the different Layers of the bulk column in the outer Container originating bulk goods exactly predetermined and be dosed.
  • a single, essentially central tube with a common Interior can be used, with none Dead spaces the storage capacity of the mixing container diminish.
  • the sizes of the swallowing openings can be such be dimensioned so that bridging is prevented becomes.
  • One determined for a specific bulk material Size of the swallowing mouth can then be for the whole Length of the mixing tube run the same thing simplifies the manufacture of the container. Is also achieved that over the entire height of the mixing tube essentially the same from each mouthful percentage of the bulk material in the mixing tube reached. The one coming out of the mixing tube Bulk material is therefore optimally mixed.
  • the embodiment according to claim 4 prevents that bulk material from swallowing openings above the entry of bulk material through an underlying Swallowing opening hindered.
  • the vertical extension plate has no influence on the predetermined percentage Proportion of the incoming bulk material however, ensure that no backflow can occur.
  • Claims 7 and 8 describe alternative Distributions of the swallowing openings around the circumference of the mixing tube, which is in practical testing have proven to be particularly useful.
  • two or more Swallowing openings are at the same height, where the sum of the deducted from the same amount percentage of bulk goods by the sum the one covered by the assigned deflector plates Parts of the cross section is predetermined.
  • the swallowing openings in both the exact be arranged at the same height as a slight Have offset in height if this is required for structural reasons.
  • the deduction of the bulk goods from the whole The container is designed according to claim 11 facilitated.
  • the configuration according to claim 13 improved the flow of the bulk material and helps dead zones to avoid.
  • the configuration according to claim 14 improved the mixing continues.
  • Claims 15 and 16 describe alternative ones Forms the baffle plates, which prove to be useful have proven.
  • the embodiment according to claim 17 causes that the mixing tube is only arranged in its wall Swallowing openings are filled.
  • the mixing tube except a circular also a polygonal cross section exhibit.
  • Claims 19 and 20 describe alternative Possibilities to manufacture the baffle plates and to be attached to the mixing tube.
  • the mixing tube is particularly simple and inexpensive getting produced.
  • the assembly of the mixing container significantly improved because in this configuration the mixing pipe directly through the roof into the outer container can be inserted.
  • Claims 23 and 24 describe alternative Principles, such as the mixing tube on inexpensive and little time consuming inside inside Container can be arranged and attached.
  • Fig. 1 is a schematic representation Mixing container 1 can be seen, which consists of an outer Container 2 and one coaxial with the outside Container 2 arranged mixing tube 3 with an opposite the cross-section of the container is smaller put together.
  • the outer container 2 has a cylindrical side wall 4 with a funnel-shaped Bottom part 5 on that at its lower end with a coaxial to the container axis Outlet opening 6 is provided.
  • the bottom part 5 is with two different inclinations of his funnel wall trained to reduce the overall height.
  • the outer container 2 is up through Roof 7 completed, through the coaxial to the container axis a first nozzle 8 protrudes.
  • the inside diameter of the first nozzle 8 is larger or at least same size as the outside diameter of the Mixing tube 3 so that the mixing tube 3 through the Stub 8 can be mounted.
  • the first nozzle 8 is closed at the top by a cover 9, the smaller by a second nozzle 10 Diameter is penetrated, the second nozzle also arranged coaxially to the container axis and is used to fill the container
  • the mixing tube 3 is provided with struts 11 which protrude upwards into the first nozzle 8.
  • the Mixing tube 3 is still over radial struts 12 on the inside of the outer container 2 on Transition between its cylindrical wall 4 and the funnel-shaped bottom part 5 is supported.
  • strut 12 is shown can be a variety provided by struts distributed in the circumferential direction will.
  • the mixing tube 3 is firmly connected to the struts 12, these being welded to the outer container 2.
  • the struts 11 are not connected the inside of the first nozzle 8 and serve the centering and lateral support of the mixing tube 3.
  • the mixing tube 3 and the outer container 2 are made Made of an aluminum alloy, with all connections are welded. However, it is also possible to use for the mixing tube stainless steel and this via adhesive, screw or rivet connections to connect to the outer container made of aluminum.
  • the mixing tube 3 encloses an interior 14 with one over the predominant height of the mixing tube 3 constant round cross section.
  • the individual parts can be folded or be extruded.
  • the mixing tube 3 contains an upper one, in the direction on the filler neck 10 opening 15, the is covered with a deflector cone 16, so that the bulk material entered into the filler neck not directly, can get axially into the mixing tube.
  • a washing nozzle 17 is provided via a line supplied with washing liquid from the outside can be. This allows the inside of the mixing tube 3 can be cleaned easily.
  • the mixing tube 3 contains a funnel 18 which opens into an outlet opening 19. The funnel 18 is enough to form a tapered taper Annulus 29 to the area of the bottom part 5.
  • the outlet opening 19 has a smaller one Diameter as the bottom part 5 at this height.
  • the funnel 18 can also be designed such that a higher flow rate in the mixing tube 3 trains.
  • the outlet opening 6 has the smallest Cross section of all existing outlet openings 19, 20 and is so large that bridging is avoided becomes. This can also make you feel above each other No outlet openings form bridges.
  • the mixing tube 3 is provided at different heights above its funnel 18 with a plurality of swallow openings 21 designed as openings in the wall of the mixing tube, of which the swallow openings 21.1 to 21.6, which are offset by 180 °, can be seen for purposes of illustration.
  • the swallowing openings can be round, triangular, rectangular or parabolic.
  • the size of the swallow openings is insignificant for the removal of the desired quantity of bulk material and is expediently dimensioned such that bridging in front of the openings, ie outside the mixing tube 3, is avoided.
  • the first, uppermost swallow opening 21.1 is arranged in the vicinity of the deflection cone 16, below the maximum filling level 22 in the outer container 2.
  • the second to sixth swallow openings 21.2 to 21.6 lie below it at predetermined intervals in accordance with the layers of the bulk material to be tapped.
  • a deflector 23 is arranged above each swallowing opening 21.
  • Each of the baffle plates 23 has the shape of a conical jacket section (FIGS. 2 and 3), is inserted into a prepared, for example milled or sawn slot in the mixing tube 3, is inclined at an angle of 20 to 45 ° to the vertical and extends inwards below into the interior 14 of the mixing tube 3.
  • the deflector plates 23 are of different sizes.
  • the mixing container 1 is designed such that the same percentage of bulk material reaches the interior 14 of the mixing tube 3 through all swallowing openings 21.
  • the deflector 23.3 the third swallow opening from above 21.3 should a third (F / 2 + 1) of the cross-section that Deflector plate 23.4 of the fourth swallow opening of above 21.4 a quarter, the deflector 23.5 of the fifth Swallow opening from above 21.5 and a fifth the deflector 23.6 of the sixth swallow opening cover a sixth of the cross-section from above 21.6, thus from all swallowing openings 21.1 to 21.6 the same percentage of the bulk material arrives in the funnel 18.
  • the baffle plates 23 are expedient pulled down so far that one theoretically forming embankment surface 26, which in Fig. 1 was drawn in dashed lines, the lower edge the respective swallowing mouth is not reached. With appropriately large baffle plates, such as they are necessary for the upper swallowing openings, this condition is easily met. Will however, the deflector plates are smaller, and they even end above the lower edge of the respective swallow opening, an extension plate 27.4 to 27.6 is provided, that at the free edge of the corresponding Deflector 23.4 to 23.6 is arranged.
  • the extension plate 27 extends vertically downwards and essentially parallel to the direction of flow of the bulk material in the interior 14, so that its Area has no influence on the percentage distribution that has bulk flows.
  • the extension plate 27 ends at a point where the free Edge trained slope area below the assigned swallowing opening 21.4 to 21.6.
  • the free ends of the deflector plates 23 or the extension plates 27 at, below or, at very steep embankment areas, also just above the lower edge of the corresponding swallow opening 21 ends.
  • the mixing container 1 of FIG. 4 also has one outer container 2 with a cylindrical side wall 4 and a funnel-shaped base part 5 with Outlet opening 6.
  • the filling is done by a Filling nozzle 10 'arranged directly in the roof 7.
  • a modified mixing tube 3 ' has on it One on the top and one on the bottom Cross section corresponding opening, the upper opening 15 in turn through the deflection cone 16 is completely covered.
  • the lower outlet 28 is in turn in the funnel-shaped base part 5 with formation of an even smaller annulus 20 'arranged as in the embodiment of FIG. 1.
  • the mouthfuls 21 of each pair lie at an angle of 180 ° opposite, the pairs of swallowing openings in different heights offset from each other by 90 ° are.
  • the size of the deflector plates 23 becomes analog the based on the embodiment of Fig. 1 formula determined, with the exception that A is the sum of all of the baffle plates in the same Represents height covered parts of the cross section.
  • the Deflector plates with or without their extension plates also by simply cutting and pressing the wall of the mixing tube.
  • the shape of the deflector plates can also vary be, the described and drawn flat baffle plates, for example due to curved, in particular conical pieces of sheet metal formed can be.
  • the arrangement of the swallow openings can be changed; for example quite possible, superimposed Swallow openings by 120 or 90 ° or by everyone any other angle to each other. If necessary, more than two can be evenly swallowing openings distributed around the circumference be arranged at the same height, their Baffle plates dimensioned in a known manner will.
  • top swallow opening for example to lay in the deflector cone, but then the top one provided in the wall area Swallow opening is passed by the bulk material and thus has to receive a baffle.
  • the order the nozzle and possibly also the arrangement of the mixing tube with respect to the central axis of the outer container can also be according to the practical Requirements such as Space requirements, changed will.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Led Devices (AREA)
EP89115576A 1988-08-26 1989-08-23 Mischbehälter Expired - Lifetime EP0355813B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89115576T ATE82154T1 (de) 1988-08-26 1989-08-23 Mischbehaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3829055 1988-08-26
DE3829055A DE3829055A1 (de) 1988-08-26 1988-08-26 Mischbehaelter

Publications (4)

Publication Number Publication Date
EP0355813A2 EP0355813A2 (de) 1990-02-28
EP0355813A3 EP0355813A3 (en) 1990-03-21
EP0355813B1 EP0355813B1 (de) 1992-11-11
EP0355813B2 true EP0355813B2 (de) 1998-04-29

Family

ID=6361678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89115576A Expired - Lifetime EP0355813B2 (de) 1988-08-26 1989-08-23 Mischbehälter

Country Status (6)

Country Link
US (1) US4978228A (ja)
EP (1) EP0355813B2 (ja)
JP (1) JP2852668B2 (ja)
AT (1) ATE82154T1 (ja)
DE (2) DE3829055A1 (ja)
ES (1) ES2036316T5 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240328A (en) * 1990-07-26 1993-08-31 Avt Anlagen- Und Verfahrenstechnik Gmbh Apparatus for mixing powdered or coarse-grained bulk materials
WO1996014924A1 (en) * 1994-11-14 1996-05-23 Sanko Air Plant, Ltd. Silo blender
US20030235111A1 (en) * 2002-06-19 2003-12-25 Bishop Jerry C. Noise reducing silo
DE10332233B4 (de) * 2003-07-16 2006-04-20 Motan Materials Handling Gmbh Mischsilo
EP2497565B1 (de) * 2011-03-11 2015-08-12 Bayer Intellectual Property GmbH Mischsilo
CN109455419A (zh) * 2018-12-04 2019-03-12 河南工业大学 一种筒仓锥形改流装置
USD882186S1 (en) * 2018-12-18 2020-04-21 Zaxe Technologies Inc. Automatic animal feeder
CN115463607B (zh) * 2022-09-20 2024-03-19 山东裕城生物技术有限公司 一种粉剂兽药定量混合生产线及其生产方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US517158A (en) * 1894-03-27 Robert hartmann
US694575A (en) * 1901-07-13 1902-03-04 Ernest Leslie Ransome Concrete-mixer.
US1496896A (en) * 1920-08-05 1924-06-10 James F Laffoon Wheat-treating device
GB236154A (en) * 1924-06-28 1925-08-20 Hermann Bollmann Improvements in or relating to devices for automatically mixing liquids or readily flowing substances
US2345554A (en) * 1942-08-26 1944-04-04 Remington Arms Co Inc Material blending
US2455572A (en) * 1948-07-08 1948-12-07 Earl R Evans Grain blender
US2907501A (en) * 1958-01-23 1959-10-06 Union Carbide Corp Discharge and mixing device
DE1159396B (de) * 1958-08-16 1963-12-19 Menzel & Co Vorrichtung zum Vermischen und Trennen mehrerer Medien
US3094243A (en) * 1960-06-13 1963-06-18 Edward P Haugen Dispensing bin and method for loading and unloading same
FR1379212A (fr) * 1963-12-17 1964-11-20 Basf Ag Procédé de mélange en continu de matières déversables
US3216629A (en) * 1964-01-24 1965-11-09 Phillips Petroleum Co Blending apparatus
US3337194A (en) * 1965-08-09 1967-08-22 Phillips Petroleum Co In-line blender
US3361413A (en) * 1966-11-10 1968-01-02 Young Machinery Company Inc Apparatus for blending particulate solids
US3539154A (en) * 1968-12-04 1970-11-10 Phillips Petroleum Co Blending apparatus
DE3208499C2 (de) * 1981-08-18 1987-01-15 Waeschle Maschinenfabrik Gmbh, 7980 Ravensburg Verfahren und Schwerkraftmischer zum Mischen von Schüttgut
US4384789A (en) * 1981-10-22 1983-05-24 Allied Industries Blender
DE3401687A1 (de) * 1984-01-19 1985-07-25 Hahn Verfahrenstechnik GmbH, 6052 Mühlheim Gravitationsmischer
DE3607485C2 (de) * 1986-03-07 1994-06-30 Avt Anlagen Verfahrenstech Vorrichtung zum Mischen von staub- und pulverförmigen sowie grobkörnigen Schüttgütern
DE3608650A1 (de) * 1986-03-14 1987-09-17 Waeschle Maschf Gmbh Schuettgutmischer
US4822173A (en) * 1987-07-13 1989-04-18 Fuller Company Withdrawal system for vessel

Also Published As

Publication number Publication date
DE3829055A1 (de) 1990-03-01
ATE82154T1 (de) 1992-11-15
ES2036316T3 (es) 1993-05-16
JPH02152533A (ja) 1990-06-12
US4978228A (en) 1990-12-18
ES2036316T5 (es) 1998-10-01
JP2852668B2 (ja) 1999-02-03
EP0355813A3 (en) 1990-03-21
EP0355813B1 (de) 1992-11-11
EP0355813A2 (de) 1990-02-28
DE58902679D1 (de) 1992-12-17

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