EP1535862A2 - Distributeur pour orifice d'évacuation de silo - Google Patents

Distributeur pour orifice d'évacuation de silo Download PDF

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Publication number
EP1535862A2
EP1535862A2 EP04027256A EP04027256A EP1535862A2 EP 1535862 A2 EP1535862 A2 EP 1535862A2 EP 04027256 A EP04027256 A EP 04027256A EP 04027256 A EP04027256 A EP 04027256A EP 1535862 A2 EP1535862 A2 EP 1535862A2
Authority
EP
European Patent Office
Prior art keywords
outlet
silo
pipe sockets
distributor according
outlet openings
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.)
Granted
Application number
EP04027256A
Other languages
German (de)
English (en)
Other versions
EP1535862A3 (fr
EP1535862B1 (fr
Inventor
Klaus Kohlmüller
Harald Faber
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.)
Qlar Europe GmbH
Original Assignee
Schenck Process 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
Application filed by Schenck Process GmbH filed Critical Schenck Process GmbH
Publication of EP1535862A2 publication Critical patent/EP1535862A2/fr
Publication of EP1535862A3 publication Critical patent/EP1535862A3/fr
Application granted granted Critical
Publication of EP1535862B1 publication Critical patent/EP1535862B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D88/26—Hoppers, i.e. containers having funnel-shaped discharge sections
    • B65D88/28—Construction or shape of discharge section

Definitions

  • the invention relates to a Siloauslaufverteiler according to the Preamble of claim 1.
  • the a continuous flow of the metered bulk material should ensure. Care must be taken that the flow of bulk material flowing out of the silo is as high as possible evenly and at least with the delivery rate to be discharged can flow into the dosing device. For round silos with one single outlet, this is usually not further problematic if the bulk material is not used for bridging tends and the transition angle of the large-volume silo section not to the relatively small outlet pipe are big. In case of tendency to bridge formations mainly dusty bulk solids is at critical constriction angles a continuous spout often by discharge aids such as Stirrers and the like ensured.
  • a bulk material silo with two outlet openings is from DE 35 29 779 C2, which is a silo outlet distributor.
  • this bulk silo are following the discharge funnel arranged a cylindrical container part, the its underside has two small outlet openings.
  • the two outlet openings are thereby by two inclined outlet funnel formed, the top of the cylindrical outlet part lead.
  • the outlet funnels are in the middle with each other and externally connected to the cylindrical silo part and thereby form different angles of approach to the vertical, which are up to 45 °.
  • a separate silo outlet distributor known for even bulk material discharge from a bulk silo.
  • This consists of a round, flat, downwardly curved housing part with a large Inlet opening and two or three smaller outlet openings.
  • the inlet opening is with a lateral mounting flange provided and is thus under the silo outlet opening attached while to the at least two outlet openings further outlet pipes are screwed.
  • a stirring arm In the interior of the silo outlet distributor is arranged a stirring arm, which of an external electric motor is driven.
  • a stirring arm which of an external electric motor is driven.
  • For better Loosening of the outflowing bulk goods is another one Ventilation device at the bottom of the outlet distributor base intended.
  • the invention is therefore based on the object, a silo outlet manifold to create fluid bulk goods, the prevents bridge or shaft formation and without additional wear-related discharge aids manages.
  • the invention has the advantage that by the rosette-like Arranging the penetrating pipe socket from the inlet opening up to the outlet openings of the entire discharge cross section remains essentially unchanged and only inclined surfaces with low wall slopes occur, so the flow behavior by the smaller outlet openings basically not is impaired. For compensation of disturbing inclined surfaces It may even be advantageous, the sum of the outlet cross sections slightly larger to choose as the inlet cross section.
  • the invention further has the advantage that by the cross-sectional optimization the inlet opening to the outlet openings an exceeding of the critical bulk material velocity can be avoided.
  • This will especially compressible or heavy flowing bulk goods advantageously Pressure differences in the bulk material flow due to partial Flow rate differences avoided, the otherwise to a pulsating bulk material discharge and thereby affect the dosing constancy.
  • the cross-section optimization at the same time has the advantage that the silo outlet manifold despite the lack of Austragangeilfen only a small height requires, as in the Siloauslaufverteiler basically no Cross-sectional narrowing occurs. Therefore, the height results only from the constructive connection possibilities the mutually opening pipe socket and is therefore not of the flow rate affecting constriction angles as dependent on funnel-shaped outlets.
  • Fig. 1 of the drawing is a Siloauslaufverteiler in front view represented with two spouts, which essentially consists of four mutually opening pipe sockets 6, 7, 8, 9, which are designed so that these at their interconnected Penetration edges uniform tip angle of inclination from about 20 ° to the vertical form.
  • the raw pipe 6, 7, 8, 9 rosette-like and symmetrical to a vertical median plane 5 is arranged.
  • the illustrated silo outlet distributor is an embodiment for the distribution of coal dust in a kiln for cement production, under a not shown Storage silo is attached.
  • the silo outlet distributor can also be used as part of the storage silo or its outlet funnel be educated. From the storage silo to two coal dust dosing be supplied with the coal dust in initiate a pneumatic delivery line, which then becomes a or more Brennrohröfen leads.
  • Each metering device exists preferably from a rotary valve, not shown and a subsequent continuous gravimetric Weighing apparatus.
  • This outlet diameter d of each of the two pipe sockets 6, 7, 8, 9 was determined for a discharge manifold made of a smooth stainless steel sheet having only a low wall friction against the coal dust.
  • the outlet diameter d results, for example, for the coal dust metering a minimum diameter of about 750 mm which can be maintained if a uniform critical flow rate should not be exceeded in the entire outlet manifold.
  • an outlet distributor was provided in which the outlet tubes open into one another such that they can hardly affect the flow velocity in the entire outlet distributor. For this purpose, as is apparent from FIGS.
  • the upper two pipe sockets 6, 7 are cut open on their lateral surface in such a way that they form a round inlet diameter D around the upper fastening flange 11.
  • the two upper pipe sockets 6, 7 are slightly funnel-shaped with different axial wall inclinations, which ends at the bottom in two round openings.
  • the two upper pipe sockets 6, 7 are rosette side by side arranged and on a vertical center plane 5 connected with each other. To connect both pipe sockets 6, 7 welded together and form in the median plane. 5 an upwardly open hyperbolic narrow connecting edge 13.
  • v max the maximum permissible critical mass velocity
  • the two upper pipe socket 6, 7 are also still two lower pipe sockets 8, 9 welded, the cylindrical are formed.
  • the two lower pipe sockets 8, 9 are inclined laterally outwards, so that they with the Vertical or vertical form an angle of 20 °.
  • Attachment flanges 12 welded to the connecting pipes can be screwed to the rotary valve.
  • the two lower ones Pipe sockets 8, 9 are inclined only to one side, so that they vertical from the perspective of the side view in Fig. 2 run.
  • the four pipe sockets 6, 7; 8, 9 arise as shown in FIG. 3 it can be seen that overall spherical connecting edges 13, the uniform angles of employment of not more than 20 ° to the vertical and thus the gravimetric mass flow in distribute its flow behavior almost unhindered.
  • the two lower pipe sockets 8, 9 have a length of about 500mm are basically only from the mounting options the connecting flanges 13 results. These pipe sockets 8, 9 can also be made longer and up to the rotary valves or other dosing devices. But it is also possible, the silo outlet manifold only perform with the two upper pipe socket 6, 7, if welded the connecting pipes to the metering directly become. Since all pipe sockets 6, 7; 8, 9 in rosettes lead and thus consistent acute-angled spherical Connecting edges 13 form each other, are also outlet distributor with up to four outlet openings executable.
  • a silo outlet manifold with three outlet openings 2 is shown in plan view.
  • the same reference numerals as in Figures 1 to 3 are given for the functionally identical device parts.
  • the upper part of three rosette-like juxtaposed and interconnected pipe socket 6, 7; 8, 9 which are arranged at an angle of 120 ° to each other.
  • These upper pipe sockets 6, 7 are welded to an inlet mounting flange 11 with a round diameter and form at its lower end three circular openings 14.
  • At these openings 14 are also three lower cylindrical pipe sockets 8, 9 welded laterally outward by 20 ° to the vertical or vertical inclined.
  • Attachment flanges 12 are in turn welded to the outlet openings 2, to which the following metering devices can be attached.
  • Such silo discharge manifolds with two to four outlets are not only for powdery bulk materials but also for Granules, shavings, sand or heavy-flowing grains can be used, where also inclination angle up to 30 ° to the lowering unimpeded Allow flow. This is always, however on the nature of the bulk material and the adhesion of the inner walls vote.
  • FIG. 5 of the drawing the plan view of a Siloauslaufverteilers is shown, the four outlet openings 2 contains.
  • the pipe socket 6, 7; 8, 9 are arranged at an angle of 90 ° to each other and symmetrical to the central axis 15.
  • D n 4 of approximately 1500 mm.
  • this outlet distributor has an almost uniform in the axial direction same opening cross-section, resulting from the sum of the four outlet cross-sections.
  • the overall height is only 2500 mm, but also the lower pipe sockets 8, 9 open into each other and are arranged inclined by 20 ° to both lateral spatial directions relative to the vertical.
  • this outlet distributor with four outlet openings 2 has constant angles of inclination at its connecting edges 13, wherein all connecting edges 13 are spherical and therefore hardly hinder the gravimetric bulk material flow in the direction of gravity.
  • outlet distributors preferably made of a smooth stainless steel sheet, its edges are well welded together. It but outlet manifolds made of other materials are also conceivable, to reduce wall friction with friction-reducing Coverings can be coated. In less erosive Bulk solids are also conceivable outlet manifold made of plastic, which can be welded together in such a form are. Theoretically, discharge manifolds with more than four outlet openings executable, but a wealth have spherical connecting edges and penetration lines, the design and manufacturing are very expensive and require very large inlet diameters.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Glass Compositions (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
EP04027256A 2003-11-28 2004-11-17 Distributeur pour orifice d'évacuation de silo Expired - Lifetime EP1535862B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10356339A DE10356339B4 (de) 2003-11-28 2003-11-28 Siloauslaufverteiler
DE10356339 2003-11-28

Publications (3)

Publication Number Publication Date
EP1535862A2 true EP1535862A2 (fr) 2005-06-01
EP1535862A3 EP1535862A3 (fr) 2006-02-08
EP1535862B1 EP1535862B1 (fr) 2007-04-18

Family

ID=34442404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04027256A Expired - Lifetime EP1535862B1 (fr) 2003-11-28 2004-11-17 Distributeur pour orifice d'évacuation de silo

Country Status (5)

Country Link
EP (1) EP1535862B1 (fr)
AT (1) ATE359976T1 (fr)
DE (2) DE10356339B4 (fr)
DK (1) DK1535862T3 (fr)
ES (1) ES2281736T3 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1427405A (en) * 1922-02-14 1922-08-29 Lloyd E Maxey Proportional-feed regulator
JPS54175787U (fr) * 1978-05-31 1979-12-12
DE3042414C2 (de) * 1980-11-11 1985-04-04 Johannes Möller Hamburg GmbH & Co KG, 2000 Hamburg Vorrichtung zur Wiedererregung des Flusses in Schüttgutsilos
DE3529779A1 (de) * 1985-08-20 1987-03-05 Moeller Hamburg Gmbh Co Kg Vorrichtung zur wiedererregung des flusses in schuettgutsilos
US6126375A (en) * 1998-09-15 2000-10-03 O'brien; Jack Material testing apparatus

Also Published As

Publication number Publication date
DE502004003529D1 (de) 2007-05-31
DK1535862T3 (da) 2007-08-27
DE10356339A1 (de) 2005-07-21
ES2281736T3 (es) 2007-10-01
DE10356339B4 (de) 2005-11-10
EP1535862A3 (fr) 2006-02-08
EP1535862B1 (fr) 2007-04-18
ATE359976T1 (de) 2007-05-15

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