US3482742A - Outlet device for bunkers,silos and the like - Google Patents

Outlet device for bunkers,silos and the like Download PDF

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Publication number
US3482742A
US3482742A US670731A US3482742DA US3482742A US 3482742 A US3482742 A US 3482742A US 670731 A US670731 A US 670731A US 3482742D A US3482742D A US 3482742DA US 3482742 A US3482742 A US 3482742A
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US
United States
Prior art keywords
arc
outlet
segment
wall
goods
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
US670731A
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English (en)
Inventor
Hans-Dieter Baehr
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.)
LIFTAG HUB GLEIT und VORSPANNTECHNIK AG
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LIFTAG HUB GLEIT und VORSPANNTECHNIK AG
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Publication of US3482742A publication Critical patent/US3482742A/en
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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
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation

Definitions

  • the present invention has reference to a bunker, silo or the like and has interiorly arranged devices above the bottom outlet of the bunker to allow free passage or outlet of material from the bunker without clogging of the material at the outlet.
  • the invention relates to an outlet device for bunkers, silos and the like, intended to make possible the unobstructed outflow of heavy bulk goods from the bunker or the like, without blockage of the goods in the outlet device or the prevention of continuous flow by bridge formation.
  • bunkers, silos and the like which are very high, sometimes reaching a height of 20 to 30 meters, the standing column of goods exerts considerable pressure on the outlet device.
  • Incorrect structures in the bunker space directly above the outlet device can hinder the free flow of the goods.
  • a method has been proposed of incorporating at least one oblique surface in the bunker space, over which the goods are led to an outlet.
  • noses projecting into other bunker space are also known, these holding back the pressure of the column of goods, especially above the outlet opening.
  • a noselike projection extends sideways from one wall of the interior to the other wall thereof. This is many cases necessitates special formation of the wall opposite the nose.
  • the present invention is an outlet device for bunkers, silos and the like, for heavy bulk goods in particular, in which at least one oblique surface is present in the bunker area on which the material is directed to an outlet, and in which above the outlet opening there is provided an arc-shaped segment which-seen in cross-section projects into the bunker area as an oblique surface and terminates with the lateral arc parts at a short distance from the bunker wall.
  • the arc-shaped segment comprises a frusto-conical sec tion.
  • the oblique surface comprises a distributing surface portion of the frusto-conical section. This distributing surface portion is located to receive a downward flow of material and thereby deflects the material laterally of the arc-shaped segment.
  • the outlet device in which the arc segment protects the outlet opening from the pressure of the column of goods, and also helps to make the goods flow freely in a loosened form.
  • the arc-shape of the segment projecting obliquely down into the bunker space not only leads the goods in the column to flow down along the oblique surfaces but also, as a result of the arc, in both opposed directions transversely to the oblique surface of the segment, a sufficient space is left between the ends of the segments and the bunker walls for the fiow of the goods.
  • the areshaped oblique segment assists the flow not only in one "ice direction but also in the transverse direction, i.e.
  • the are segment consists practically only of the arc-shaped oblique surface, i.e. below the arc segment the space is completely free, so that the goods can loosen up and extend in that direction in order to flow off. This applies especially to the segment parts located at the sides of the arc. With this arrangement it is suflicient if the opposite bunker wall turns into the oblique surface at a sharp angle.
  • the arc segment which stops with its end at a distance from the bunker wall, leads the goods, in conjunction with the outlet oblique surface, directly into the outlet opening.
  • the outlet device formed in accordance with the present invention is equally advantageous with bunkers of square or circular cross-section.
  • Two are segments can with advantage be arranged, mirror-image fashion, and in the vertical medial plane of the bunker.
  • both arc-segments can start off from an intermediate wall which, seen in cross-section, is formed so as to come to a point at the top.
  • the outlet under both arc-segments advantageously extends along the said segments and can be broader than both arc-segments together.
  • the intermediate wall can extend rather lower than the arc-segment at the lower ends. It should, however, still be at a suflicient distance from the outlet opening.
  • the arc-segment itself extends at least over an angle of degrees.
  • An advantageous angle for the arc-segment is one lying between and degrees. In this way the goods receive secure guidance into a flow downwardly, just where the bunker walls lie opposite the arc-segments.
  • the main outlet oblique surface should run transversely to the arc-segment.
  • the material is distributed in all directions off and along the distributing surface portion.
  • the material is directed to the side wall of the bunker and at varying distances therefrom to be discharged from the housing through the bottom opening.
  • FIG. 1 is a vertical sectional view on line I-I of FIG. 2, showing an embodiment of the outlet device according to the invention for bunkers, silos or the like;
  • FIG. 2 is a horizontal cross-sectional view taken on line II-II of FIG. 1;
  • FIG. 3 is a vertical cross-sectional view taken on line III-III of FIG. 1;
  • FIG. 4 is a horizontal sectional view of another form of the invention showing the outlet device in a silo which is rectangular in cross-section.
  • the bunker which will hereinafter be referred to as a silo is designated in general by the reference numeral 1 and is illustrated as being circular in cross-section with outlet oblique surfaces 2 and 3 which are directed towards the medial axis and the lower edges of which form the limits of an outlet opening 4 which is square or rectangular in plan view.
  • the outlet oblique surfaces 2 and 3 can be at a relatively low angle, e.g. 40 degrees.
  • An arc-shaped segment 7 is mounted on each side of the intermediate wall 5, the segments 7 as seen in cross-section in FIG. 1 projecting with an oblique wall 8 into the silo space 9 and ending at their ends as vat 7' and 7" a short distance from the side wall of the silo 1.
  • a short vertical flange 10' connects the oblique wall 8 to the segment 7 at each side of the intermediatewall S.
  • the space formed by the oblique wall 8 can be hollow as shown but this area may comprise a solid construction.
  • the arc-segment extends over an angle of, about 160 degrees.
  • the intermediate .wall 5 extends downwardly below the arc-segments 7, but stops at a sufiicient distance below the outlet opening 4.
  • a thin plate can be provided as a continuation of the medial intermediate wall 5, and the said plate can be supported along the length of outlet opening 4 by several thin-walled transverse bars arranged at right angles.
  • the arc-shaped oblique walls 8 can run at an angle of 40 to 50 degrees, preferably at 45 degrees.
  • the column of goods in the silo 1, of some considerable height, e.g. 20' to 30 meters, is partially caught above the outlet opening 4 by the oblique walls 8 of the arcshaped segments 7, these segments leading the goods through oblique walls 8 to the silo space 9 and, by means of the arc-shape of the oblique walls, to both sides of the segment, sufiicient flow-space remaining to allow the goods to run oif, as a result of the distance between the arc-segment and the opposed silo wall.
  • the knife-edge part 6 of the intermediate wall supports the effect of the oblique walls 8.
  • the goods can extend below arc-segment 7 to intermediate wall 5 and slide in loose form to the outlet opening 4.
  • outlet oblique walls 2 and 3 can run off at a sharp angle from the silo wall. Further oblique walls can be arranged below outlet opening 4, these walls running transversely to outlet oblique walls 2 and 3, so that a take-off slot of smaller cross-sectional surface is obtained.
  • silo 1a which is square in cross-section is disclosed.
  • arc-segment 7a is provided with the oblique surface 8a according to the formation of the arc segment of FIGS. 1 to 3.
  • the segment is at a sufiicient distance above the outlet opening 4a, to which the outlet oblique wall 2a leads from the opposite silo wall.
  • the arc-segment can be provided in twin form with a mirror-image arrangement, in the middle of the cross-section, in conjunction with an intermediate wall.
  • a silo constructionas'iricl aim 1 wherein an inter mediate wall extends transversely ofithe housing and is engaged with opposite walls of the housing with an arcshaped segmentat each. side of therwall and terminating above the segments with a knife-like edge and extending below the segments to maintain twoseparateoutlet paths.
  • theoutlet opening extending along the arc-segments and the obliquegwalls arranged in a transverse direction to the-arc-segments.
  • a silo construction as in claim 1 wherein an intermediate wall extends transversely of the'housing and is engaged with opposite walls of the housing with an arcshaped segment at each side of the wall and terminating above the segments with a knife-like edge. and extending below the segments to maintaintwo separate outlet paths for the material to-the outlet, the hollow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
US670731A 1966-09-29 1967-09-26 Outlet device for bunkers,silos and the like Expired - Lifetime US3482742A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK60349A DE1277141B (de) 1966-09-29 1966-09-29 Auslaufvorrichtung fuer Bunker, Silo u. dgl.

Publications (1)

Publication Number Publication Date
US3482742A true US3482742A (en) 1969-12-09

Family

ID=7229570

Family Applications (1)

Application Number Title Priority Date Filing Date
US670731A Expired - Lifetime US3482742A (en) 1966-09-29 1967-09-26 Outlet device for bunkers,silos and the like

Country Status (11)

Country Link
US (1) US3482742A (no)
AT (1) AT276239B (no)
BE (1) BE704440A (no)
CH (1) CH455648A (no)
DE (1) DE1277141B (no)
DK (1) DK116989B (no)
ES (1) ES345414A1 (no)
GB (1) GB1183837A (no)
NL (1) NL6713230A (no)
NO (1) NO123842B (no)
SE (1) SE312100B (no)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4993232A (en) * 1989-05-12 1991-02-19 Hoshizaki Denki Kabushiki Kaisha Auger type ice making machine
US6328183B1 (en) * 1999-05-11 2001-12-11 Clarence B. Coleman Mass flow bulk material bin

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US352418A (en) * 1886-11-09 Corn-planter
US3081009A (en) * 1959-02-27 1963-03-12 Bituminous Coal Research Solids flow system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US352418A (en) * 1886-11-09 Corn-planter
US3081009A (en) * 1959-02-27 1963-03-12 Bituminous Coal Research Solids flow system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4993232A (en) * 1989-05-12 1991-02-19 Hoshizaki Denki Kabushiki Kaisha Auger type ice making machine
US6328183B1 (en) * 1999-05-11 2001-12-11 Clarence B. Coleman Mass flow bulk material bin

Also Published As

Publication number Publication date
GB1183837A (en) 1970-03-11
DK116989B (da) 1970-03-02
BE704440A (no) 1968-03-28
ES345414A1 (es) 1968-11-16
AT276239B (de) 1969-11-25
DE1277141B (de) 1968-09-05
CH455648A (de) 1968-07-15
NL6713230A (no) 1968-04-01
NO123842B (no) 1972-01-24
SE312100B (no) 1969-06-30

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