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DE1271629B - For the pneumatic conveying of particularly sticky bulk material or bulk material with a tendency to stick, optionally double-walled pipeline - Google Patents

For the pneumatic conveying of particularly sticky bulk material or bulk material with a tendency to stick, optionally double-walled pipeline

Info

Publication number
DE1271629B
DE1271629B DEP1271A DE1271629A DE1271629B DE 1271629 B DE1271629 B DE 1271629B DE P1271 A DEP1271 A DE P1271A DE 1271629 A DE1271629 A DE 1271629A DE 1271629 B DE1271629 B DE 1271629B
Authority
DE
Germany
Prior art keywords
bulk material
stick
tendency
pneumatic conveying
walled pipeline
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.)
Pending
Application number
DEP1271A
Other languages
German (de)
Inventor
Franz Waeschle
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.)
Waeschle Maschinenfabrik GmbH
Original Assignee
Waeschle Maschinenfabrik 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 Waeschle Maschinenfabrik GmbH filed Critical Waeschle Maschinenfabrik GmbH
Priority to DEP1271A priority Critical patent/DE1271629B/en
Publication of DE1271629B publication Critical patent/DE1271629B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34Details
    • B65G53/52Adaptations of pipes or tubes
    • B65G53/521Adaptations of pipes or tubes means for preventing the accumulation or for removal of deposits

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Transport Of Granular Materials (AREA)

Description

Zum pneumatischen Fördern von insbesondere klebrigem oder zum Anbacken neigendem Schüttgut bestimmte, gegebenenfalls doppelwandige Rohrleitung Es ist bereits vor Jahren eine doppelwandige Rohrleitung zum Fördern von Ruß oder ähnlichen klebrigen oder anbackenden Gütern bekanntgeworden, bei der das innere, der Förderung dienende Rohr dehnbar und das äußere Rohr starr ausgeführt ist. Die Rohrleitung als Ganzes ist dort aus einzelnen Abschnitten mit durchlaufendem inneren Förderrohrstrang und entsprechend den Abschnitten voneinander abgeteilten hohlzylindrischen äußeren Kammern gebildet. Eine parallellaufende Druckluftleitung und eine ebensolche Abluftleitung sind an die einzelnen Kammern angeschlossen. Durch intermittierende Luftzufuhr in der Druckluftleitung werden in der Rohrleitung Druckschwankungen zwischen Innen und Außen erzeugt und dadurch das dehnbare Förderrohr zum »Atmen« gebracht. Dadurch werden Ablagerungen des Fördergutes vermieden oder bereits im Rohrinneren erfolgte Ansätze desselben wieder abgesprengt.For the pneumatic conveying of especially sticky items or for caking inclined bulk material certain, possibly double-walled pipeline It is already Years ago a double-walled pipeline for conveying soot or similar sticky or caked goods became known, in which the inner, the promotion Tube is expandable and the outer tube is rigid. The pipeline as a whole is there from individual sections with continuous inner conveyor pipe string and hollow cylindrical outer chambers divided from one another in accordance with the sections educated. A compressed air line running in parallel and an exhaust air line of the same type are connected to the individual chambers. By intermittent air supply in of the compressed air line there are pressure fluctuations between the inside of the pipeline and generated outside, thereby making the expandable delivery pipe "breathe". Through this Deposits of the conveyed material are avoided or have already occurred inside the pipe Approaches of the same blown off again.

Nach der Erfindung sollen die besonderen parallel zur Förderleitung laufenden Luftleitungen vermieden werden. Gegebenenfalls soll auch auf das äußere Mantelrohr verzichtet werden. Soweit vorhanden, soll es nur noch zum Schutz und zur Versteifung der dehnbaren Förderrohrleitung dienen. According to the invention, the special should be parallel to the delivery line running air lines can be avoided. If necessary, it should also apply to the exterior Jacket pipe can be dispensed with. If available, it should only be used for protection and serve to stiffen the expandable delivery pipeline.

Diese Ziele werden bei einer, zum pneumatischen Fördern von, insbesondere klebrigem oder zum Anbacken neigendem, Schüttgut bestimmten, gegebenenfalls doppelwandigen Rohrleitung mit einem dehnbaren Förderrohr und mit Mitteln zur Erzeugung von wechselnden Druckdifferenzen zwischen Innen und Außen dadurch erreicht, daß die Mittel aus Sperrorganen (Absperrklappen) bestehen, die im Förderrohr in Abständen eingebaut sind und während eines zwischen zwei Fördervorgängen mittels reiner Druckluft bewirkten Reinigungsvorganges wechselweise geschlossen und geöffnet werden. These goals are in one for the pneumatic conveying of, in particular sticky or sticky bulk material, possibly double-walled Pipeline with an expandable delivery pipe and with means for generating alternating Differences in pressure between inside and outside achieved in that the means of blocking organs (Butterfly valves) that are installed in the delivery pipe at intervals and during a cleaning process carried out between two conveying processes by means of pure compressed air are alternately closed and opened.

In der Zeichnung ist ein Ausführungsbeispiel der erfindungsgemäßen Rohrleitung im Schnitt dargestellt und im folgenden beschrieben. In the drawing is an embodiment of the invention Pipeline shown in section and described below.

Das innere Förderrohr 1 ist aus elastisch dehnbarem Werkstoff. Es ist mit Zwischenraum in einem äußeren Mantelrohr 2 gehalten, welches aus einem mit einer Drahtwendel armierten Schlauch besteht und zum Schutz und zur Versteifung der Förderleit;ng dient. Die einzelnen Rohrleitungsabschnitte sind durch Flansche 3 miteinander verbunden. In gewissen Abständen sind jedoch an den Stoßstellen zwischen den Flanschen 3 Ringstücke 4 eingesetzt, in denen Absperrklappen 5 verschwenkbar mittels Stellwel- len 6 gelagert sind. An jeder Stellwelle 6 greifen Stellmittel 7 an, die entweder von Hand oder durch einen Fernantrieb im Wechsel betätigt werden. The inner conveyor pipe 1 is made of an elastically stretchable material. It is held with space in an outer jacket tube 2, which consists of a with a wire helix reinforced hose and for protection and stiffening the conveying control serves. The individual pipe sections are through flanges 3 connected to each other. At certain intervals, however, are between the flanges 3 ring pieces 4 used, in which butterfly valves 5 pivotable by means of len 6 are stored. Adjusting means act on each adjusting shaft 6 7, which are operated alternately either by hand or by a remote operator.

Zum Zwecke der Abreinigung des Rohrinneren von abgesetztem und anhaftendem Fördergut wird zwischen zwei Fördervorgängen ein Reinigungsvorgang eingeschaltet. Es wird reine Druckluft durch das Innenrohr 1 geblasen. Dabei werden die Absperrklappen 5 durch die Stellmittel 7 im Wechsel geschlossen und wieder geöffnet. Durch den dadurch bedingten Druckwechsel kommt das elastische Innenrohr 1 zum »Atmen«. Durch das abwechselnde Dehnen und Zusammenziehen der Rohrwand löst sich das anhaftende Gut und bröckelt ab, um dann durch die Druckluft weitergefördert zu werden. Entsprechend dem Verschmutzungsgrad der Leitung kann dieser Reinigungsprozeß beliebig lang und beliebig oft durchgeführt werden. For the purpose of cleaning the inside of the pipe from deposited and adherent A cleaning process is switched on between two conveying processes. Pure compressed air is blown through the inner tube 1. The butterfly valves are thereby 5 closed and reopened alternately by the actuating means 7. Through the The pressure change caused by this causes the elastic inner tube 1 to "breathe". By the alternating expansion and contraction of the pipe wall loosens the adhesive Good and crumbles, only to be conveyed further by the compressed air. Corresponding This cleaning process can take any length and depending on the degree of pollution of the line can be carried out as often as required.

Claims (1)

Patentanspruch: Zum pneumatischen Fördern von insbesondere klebrigem oder zum Anbacken neigendem Schüttgut bestimmte, gegebenenfalls doppelwandige Rohrleitung, mit einem dehnbaren Förderrohr und mit Mitteln zur Erzeugung von wechselnden Druckdifferenzen zwischen Innen und Außen dadurch gekennzeichnet, daß die Mittel aus Sperrorganen (Absperrklappen 5) bestehen, die im Förderrohr (1) in Abständen eingebaut sind und während eines zwischen zwei Fördervorgängen mittels reiner Druckluft bewirkten Reinigungsvorganges wechselweise geschlossen und geöffnet werden. Claim: For the pneumatic conveying of especially sticky or bulk material with a tendency to stick, possibly double-walled pipeline, with an expandable delivery pipe and with means for generating changing pressure differences between inside and outside characterized in that the means consist of blocking elements (Butterfly valves 5) that are installed in the delivery pipe (1) at intervals and during a cleaning process effected between two conveying processes by means of pure compressed air are alternately closed and opened. In Betracht gezogene Druckschriften: USA.-Patentschrift Nr. 2478 326. References considered: U.S. Patent No. 2478 326.
DEP1271A 1966-10-21 1966-10-21 For the pneumatic conveying of particularly sticky bulk material or bulk material with a tendency to stick, optionally double-walled pipeline Pending DE1271629B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP1271A DE1271629B (en) 1966-10-21 1966-10-21 For the pneumatic conveying of particularly sticky bulk material or bulk material with a tendency to stick, optionally double-walled pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP1271A DE1271629B (en) 1966-10-21 1966-10-21 For the pneumatic conveying of particularly sticky bulk material or bulk material with a tendency to stick, optionally double-walled pipeline

Publications (1)

Publication Number Publication Date
DE1271629B true DE1271629B (en) 1968-06-27

Family

ID=5661507

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP1271A Pending DE1271629B (en) 1966-10-21 1966-10-21 For the pneumatic conveying of particularly sticky bulk material or bulk material with a tendency to stick, optionally double-walled pipeline

Country Status (1)

Country Link
DE (1) DE1271629B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2617816A1 (en) * 1987-07-10 1989-01-13 Waeschle Maschf Gmbh PLANT FOR THE PNEUMATIC TRANSPORT OF BULK MATERIALS
DE102013105715A1 (en) * 2013-06-04 2014-12-04 Frank Gillengerten Container for liquid media loaded with solids and method for removing deposits in liquid containers

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478326A (en) * 1945-12-17 1949-08-09 Phillips Petroleum Co Pipe-line transportation of fine solids

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478326A (en) * 1945-12-17 1949-08-09 Phillips Petroleum Co Pipe-line transportation of fine solids

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2617816A1 (en) * 1987-07-10 1989-01-13 Waeschle Maschf Gmbh PLANT FOR THE PNEUMATIC TRANSPORT OF BULK MATERIALS
DE102013105715A1 (en) * 2013-06-04 2014-12-04 Frank Gillengerten Container for liquid media loaded with solids and method for removing deposits in liquid containers

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