EP0030362B1 - Vorrats- und Mischsilo für Schüttgut - Google Patents

Vorrats- und Mischsilo für Schüttgut Download PDF

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Publication number
EP0030362B1
EP0030362B1 EP80107558A EP80107558A EP0030362B1 EP 0030362 B1 EP0030362 B1 EP 0030362B1 EP 80107558 A EP80107558 A EP 80107558A EP 80107558 A EP80107558 A EP 80107558A EP 0030362 B1 EP0030362 B1 EP 0030362B1
Authority
EP
European Patent Office
Prior art keywords
chamber
annular chamber
silo
mixing
silo according
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
Application number
EP80107558A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0030362A1 (de
Inventor
Norbert Ahrens
Heinrich Klockenbusch
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Krupp Polysius AG
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 Krupp Polysius AG filed Critical Krupp Polysius AG
Publication of EP0030362A1 publication Critical patent/EP0030362A1/de
Application granted granted Critical
Publication of EP0030362B1 publication Critical patent/EP0030362B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/72—Fluidising devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/4092—Storing receptacles provided with separate mixing chambers
    • 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
    • B01F35/50—Mixing receptacles

Definitions

  • the invention relates to a storage and mixing silo for bulk goods, containing a storage space in a common silo body and an emptying space provided in the lower region of the silo body, which is connected to the storage space via a material inlet opening provided in its inner boundary wall and whose outer boundary wall has at least one material outlet opening has, the storage space and emptying space having devices for pneumatic floor ventilation and wherein the material inlet opening and the material outlet opening of the emptying chamber are arranged offset in the circumferential direction of this chamber.
  • a central mixing chamber is provided in the lower region of the silo chamber, the peripheral wall of which in the lower part has a number of material inlet openings over which the mixing chamber communicates with the pantry. From this mixing space, an approximately radial discharge channel, the height of which corresponds approximately to that of the mixing space, leads to an outlet opening in the outer wall of the silo body.
  • the mixing effect achieved with such a silo in the central mixing chamber is unsatisfactory. In particular, it can happen that strands of material that enter the mixing chamber through one of the numerous material inlet openings reach the emptying channel almost immediately, without participating in an intensive mixing movement within the mixing chamber.
  • a storage and mixing silo of the type mentioned at the outset is also known (DE-A1-23 35 525), in which an approximately U-shaped emptying space is provided in the lower region of the silo body outside the funnel-shaped beveled storage space.
  • This emptying space is bounded towards the storage space by the bevelled side walls of the funnel-shaped lower area of the storage space.
  • material inlet openings are provided through which the material can be conveyed from the storage space into the emptying space by means of pneumatic feeders.
  • the invention is therefore based on the object, while avoiding these shortcomings of the known designs, to form a storage and mixing silo of the type mentioned in such a way that, while at the same time being more economical and compact, there is a substantially improved mixing and homogenizing effect.
  • the emptying space provided in the lower region of the silo body also fulfills the function of a mixing space due to its design as an annular chamber with a mutually offset product inlet and product outlet opening and with independent ventilation of the individual zones of the annular chamber.
  • a mixing space due to its design as an annular chamber with a mutually offset product inlet and product outlet opening and with independent ventilation of the individual zones of the annular chamber.
  • the bulk material to be mixed passes through the individual zones that can be ventilated independently of one another within the annular chamber, and is thus well homogenized.
  • FIGS. 1 and 2 A first exemplary embodiment of the storage and mixing silo is first described with reference to FIGS. 1 and 2, which is intended in particular for fine-grained and powdery bulk material.
  • the silo contains a storage space 2, which by far takes up the largest volume, and in its lower area a mixing space 3, which is smaller than the storage space 2 and which is formed by an annular chamber 4.
  • the annular chamber 4 forms a mixing chamber 3 which is continuous in the circumferential direction (cf. FIG. 2).
  • the annular chamber 4 is formed by an outer boundary wall 5, which can simultaneously be the outer wall of the silo body 1, further by an inner boundary wall 6 as well as by a bottom 7 and an inclined top wall 8, which is the internally inclined, funnel-shaped bottom of the storage space 2 and which therefore runs obliquely inwards from the upper region of the outer boundary wall 5 to the vertically oriented inner boundary wall 6.
  • the inner boundary wall 6 thus adjoins the lower edge of the funnel-shaped bottom (top wall 8) of the storage space 2.
  • This inner boundary wall 6 is therefore formed by a cylindrical wall part of this storage space that extends as far as the central, ventilated base part 9 of the storage space 2, this resulting in a central, deep lowering space 2a in the lower region of the storage space 2.
  • a product inlet opening 10 is provided in the area of the annular chamber base 7.
  • This material inlet opening 10 to the mixing chamber 3 is assigned a collecting conveyor 11, which is arranged in the central base part 9 of the storage space 2, preferably in such a way that it traverses this central base part 9 diametrically.
  • the collecting conveyor 11 can be a pneumatic conveyor trough, which is associated with conventional pneumatic loosening units 12 on both sides, which are also incorporated in the central base part 9.
  • this product outlet opening 13 can be assigned in the customary manner non-illustrated product outlet members for blocking and metering. It is important, however, that this material outlet opening 13 of the outer boundary wall 5 is at a higher level than the material inlet opening 10 on the chamber bottom 7 in the inner boundary wall 6. It is particularly expedient to provide the material outlet opening 13 with a radial distance between the inner and the outer annular chamber. Assign boundary wall 6 or 5 extending overflow channel 14, which is slightly inclined towards the outer boundary wall 5.
  • This overflow channel 14 can be designed in the form of a simple inclined discharge chute or else in the form of a pneumatic conveyor channel or in the form of another suitable conveyor element. In any case, the overflow channel 14 is open at the top, and the upper overflow edges 15 of the channel are approximately horizontal and of the same height, so that the product level S within the mixing chamber 3 is determined thereby.
  • the partial ventilation zone 17 assigned to the material inlet opening 10 and the partial ventilation zone 21 directly assigned to the product outlet opening 13 are always heavily ventilated during operation, preferably with the same amount of pressure being applied.
  • FIGS. 3 and 4 A second exemplary embodiment of the storage and mixing silo is illustrated in FIGS. 3 and 4, with FIG. 3 only showing the left half of the silo body 31 in comparison to FIG. 1, while the right half, not shown, is carried out in exactly the same way can be, as has been explained with reference to FIG. 1.
  • the silo body 31 contains a storage space 32 and a mixing space 33 which is smaller than the storage space 32 and which is formed by an annular chamber 34.
  • the outer structure of the annular chamber 34 is initially designed in the same way as the annular chamber 4 in the example of FIGS. 1 and 2, that is to say it contains an outer boundary wall 35, an inner boundary wall 36, a chamber floor 37 and one from the upper region of the outer boundary wall 35 obliquely downward-inward to the inner boundary wall 36 extending top wall 38. Also in this second exemplary embodiment, the radial width B and the height H of the boundary walls 35, 36 which run vertically at least in their lower region are defined in exactly the same way as for Part has been explained with reference to the silo inner diameter D with reference to Figures 1 and 2.
  • the overflow channel 44 which is also designed and arranged in this case in the same way as in the first exemplary embodiment, is expediently designed for the joint reception of mixed material from the two partial mixing spaces 33a, 33b, so that the material can be discharged through the material outlet opening 43 together.
  • the feed inlet opening 40a, 40b of each partial mixing space 33a or 33b is located in the region of the chamber floor 37, while the outlet opening 43 is at a correspondingly elevated level and with its overflow channel 44 the product level, i.e. the Height of the filling in the partial mixing rooms 33a, 33b determined.
  • the chamber floor 37 is also subdivided into several partial ventilation zones, namely it contains the partial ventilation zones 49, 50, 51, 52 in the area of the partial mixing room 33a and approximately in the area of the partial mixing room 33b Partial ventilation zones 49 ', 50', 51 'and 52' lying symmetrically to the first-mentioned partial ventilation zones, as illustrated in FIG. 4.
  • the partial ventilation zones 49, 49 'and 52, 52' which are directly adjacent to the respective product inlet opening 40a or 40b and the product outlet opening 43, can then always be strongly ventilated in the two partial mixing rooms 33a, 33b, while those in both parts -Mixing spaces 33a, 33b, that is to say in both circumferential directions, intermediate ventilation zones 50, 51 and 50 ', 51' in each case can only be periodically alternately ventilated in the order from the area of the product inlet opening to the product outlet opening.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Storage Of Harvested Produce (AREA)
EP80107558A 1979-12-11 1980-12-03 Vorrats- und Mischsilo für Schüttgut Expired EP0030362B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2949791 1979-12-11
DE19792949791 DE2949791A1 (de) 1979-12-11 1979-12-11 Vorrats- und mischsilo fuer schuettgut

Publications (2)

Publication Number Publication Date
EP0030362A1 EP0030362A1 (de) 1981-06-17
EP0030362B1 true EP0030362B1 (de) 1982-11-24

Family

ID=6088143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80107558A Expired EP0030362B1 (de) 1979-12-11 1980-12-03 Vorrats- und Mischsilo für Schüttgut

Country Status (6)

Country Link
US (1) US4364665A (es)
EP (1) EP0030362B1 (es)
BR (1) BR8008076A (es)
DE (2) DE2949791A1 (es)
ES (1) ES8201927A1 (es)
ZA (1) ZA807435B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3102270A1 (de) * 1981-01-24 1982-09-23 Claudius Peters Industrieanlagen GmbH, 2000 Hamburg "vorrats- und/oder mischsilo"
DE3143387A1 (de) * 1981-11-02 1983-05-11 Krupp Polysius Ag, 4720 Beckum Verfahren zum betrieb eines durchlaufmischsilos
DE3224196A1 (de) * 1982-06-29 1983-12-29 Krupp Polysius Ag, 4720 Beckum Verfahren zum mischen von feingut
DE3245542A1 (de) * 1982-12-09 1984-06-14 Claudius Peters Ag, 2000 Hamburg Mischsilo
DE3743637A1 (de) * 1987-12-22 1989-07-06 Krupp Polysius Ag Silo fuer schuettgut
CN101892384B (zh) * 2010-07-15 2011-09-21 广西有色金属集团汇元锰业有限公司 无汞碱锰型电解二氧化锰的生产方法
CN108543442B (zh) * 2018-04-20 2021-05-14 佛山市西泰陶瓷科技有限公司 一种陶瓷制釉装置
CN108421466B (zh) * 2018-04-20 2021-03-09 醴陵市利果陶瓷贸易有限公司 一种陶瓷制釉工艺

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1574925A (es) * 1968-05-31 1969-07-18
CH521159A (de) * 1970-11-17 1972-04-15 A R Weber Ag Mischvorrichtung für pulverförmiges oder körniges Gut
DE2335525A1 (de) * 1973-07-12 1975-01-30 Guenther Windelband Siloentleerungsvorrichtung
DE2336984C2 (de) * 1973-07-20 1984-11-08 Claudius Peters Ag, 2000 Hamburg Entleerungseinrichtung für ein Schüttgut-Silo
DE7531503U (de) * 1975-10-04 1976-01-29 Claudius Peters Ag, 2000 Hamburg Entleerungsvorrichtung an flachboedigen schuettgutsilos
DE2657596C2 (de) * 1976-12-18 1982-08-26 Claudius Peters Ag, 2000 Hamburg Mischkammersilo für Schüttgut
FR2374073A1 (fr) * 1976-12-18 1978-07-13 Peters Ag Claudius Silo a chambre de melange pour matieres en vrac
DE2727499B2 (de) * 1977-06-18 1980-11-13 Claudius Peters Ag, 2000 Hamburg Misch- oder Homogenisierkammer in einem Silo

Also Published As

Publication number Publication date
ZA807435B (en) 1983-01-26
US4364665A (en) 1982-12-21
BR8008076A (pt) 1981-06-30
ES497597A0 (es) 1982-01-16
ES8201927A1 (es) 1982-01-16
DE3061165D1 (en) 1982-12-30
EP0030362A1 (de) 1981-06-17
DE2949791A1 (de) 1981-06-19

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