EP0114278B1 - Obturateur pour système de transport pneumatique pour transporter des matières en vrac roulables - Google Patents

Obturateur pour système de transport pneumatique pour transporter des matières en vrac roulables Download PDF

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Publication number
EP0114278B1
EP0114278B1 EP83112337A EP83112337A EP0114278B1 EP 0114278 B1 EP0114278 B1 EP 0114278B1 EP 83112337 A EP83112337 A EP 83112337A EP 83112337 A EP83112337 A EP 83112337A EP 0114278 B1 EP0114278 B1 EP 0114278B1
Authority
EP
European Patent Office
Prior art keywords
housing
slider
channel
shut
flat
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
EP83112337A
Other languages
German (de)
English (en)
Other versions
EP0114278A1 (fr
Inventor
Klaus Ullner
Rudolf Seide
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.)
Buehler Miag GmbH
Original Assignee
Buehler Miag 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 Buehler Miag GmbH filed Critical Buehler Miag GmbH
Priority to AT83112337T priority Critical patent/ATE26607T1/de
Publication of EP0114278A1 publication Critical patent/EP0114278A1/fr
Application granted granted Critical
Publication of EP0114278B1 publication Critical patent/EP0114278B1/fr
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
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/58—Gates or closures having closure members sliding in the plane of the opening
    • B65D90/587—Gates or closures having closure members sliding in the plane of the opening having a linear motion

Definitions

  • the invention relates to a shut-off device according to the preamble of patent claim 1.
  • Shut-off devices of this type serve, for example, as a filler cap for pressure vessels, for closing pneumatic delivery lines and others. They must shut off gas-tight against 6 bar, have a free passage for the goods in the open position and be able to switch both through a standing column of goods and in the flow of goods.
  • guide grooves of this type can form sources of interference in rough working conditions, especially if they have been knocked out after a long period of operation and residues are found in the gaps that arise.
  • the drainage space below the contact surface for the slide plate should also become clogged over time and thus lose effectiveness.
  • US Pat. No. 3,170,670 discloses a flat slide valve that can be pressurized from one side or the other for slurry-like or liquid media, the slide plate of which rests on one side against an annular seat surface that is supported by an O-ring on the slide housing, whereby the O-ring and the seat have approximately the diameter of the pipeline to be blocked or opened.
  • the arrangement is such that the O-ring should ensure a satisfactory pressure of the seat on the slide plate regardless of the direction of pressure on the slide plate, while the preservation of the elasticity of the O-ring should play a significant role and also not the fundamental problem of a sealing effect in the material flow between two solid materials, in contrast to that between a solid and a flexible material, can be overlooked.
  • valve housing To guide the slide plate opposite the seat surface, numerous support blocks are arranged in the slide housing, which support the slide plate in all of its working positions at several points and also capture the front edge of the slide plate in the firing position.
  • the integrally designed valve housing is to be regarded as disadvantageous in the case of repair and maintenance work, since it does not guarantee optimal accessibility of the interior.
  • the invention is based on the object of realizing an at least 6 bar sealing shut-off device which switches trouble-free by a column of good or in the flow of goods, in the case of the flat slide of which the risk of jamming by good particles is excluded and always sufficient space for the material displaced when the slide is closed is available.
  • claims 3 and 5 ensure that entrained good particles cannot be deposited in the housing on the long sides of the flat slide valve, but rather are pushed in each forward stroke from the clearing surfaces provided on the flat slide valve into drainage channels and are derived from these into the good passage channel of the housing.
  • shut-off device An embodiment of the shut-off device according to the invention is shown in the drawing and will be described in more detail below.
  • the shut-off device essentially consists of a housing 1 and a flat slide 2.
  • the housing 1 is made in two parts and comprises an upper or inlet-side housing part 3 with a flange 3a and a lower or outlet-side housing part 4 with flanges 4a, 4b.
  • the two housing parts 3, 4 are firmly but releasably connected to one another by means of their flanges 3a, 4a by means of screws 5.
  • the upper housing part 3 has a good passage channel 6, the lower housing part 4 a good passage channel 7, both together form the good passage channel of the housing 1.
  • the good passage channel 7 of the housing part 4 is at the butt joint 8 of the two housing parts 3, 4 in relation to the through channel 6 of the upper one Housing part 3 expands that firstly there is a free end face 9 on the latter, which forms the counter surface for the flat slide 2 in the housing 1, and secondly a free space 10 is created in the housing part 4, the volume of which is at least that of the flat slide 2 during the closing movement in the passage 6 , 7 displaced volume of goods is the same. So that a pre-wiping edge forms out of the material itself when the material flows through the material passage channel 6, 7, an undercut 11 is made in the housing part 3 at the end of the material passage channel 6 on the product outlet side.
  • annular groove 12 is introduced, which receives an inflatable sealing ring 13.
  • the sealing ring 13 is held in this by screws 14 distributed around the circumference of the annular groove 12 and can be connected to a compressed air source via a connecting pipe 15 and a bore 16 in the housing part 3 and a pipe (not shown) connected to the bore 16.
  • the housing part 3 has, in a uniform distribution around the material passage channel, a plurality of threaded bores 17 for the connection of a material supply means, for example an inlet pipe.
  • the flange 4b of the housing part 4 has a similar distribution on the circumference of a plurality of threaded bores 18 for connecting the housing 1 to the unit to be supplied with good, for. B. a pressure vessel.
  • the housing part 4 has on its side walls adjacent to the longitudinal sides of the flat slide 2 each a drainage channel 19, which is open to the good passage channel 7. Furthermore, the housing part 4 has a slide bearing surface 20 and a slide slot 21, the cross section of which corresponds to the cross section of the flat slide 2, to the left and right of its vertical center plane.
  • the slide slot 21 is sealed at the top and bottom by a sealing strip 22 and on the left and right by a sealing strip 23 (FIGS. 1, 2, 4).
  • the slide slot 21 opens out into a chamber 24, which is formed by an extension 25 with flange 25a on the housing part 3 and an extension 26 with flange 26a on the housing part 4.
  • the chamber 24 can be connected to the said compressed air source by a connection 27 provided in the extension 25 via a pipe (not shown), the pressure of which is higher than the air pressure in the material passage channel 7.
  • the flat slide 2 is designed as a rigid sheet with a cutting edge 28 at its front end.
  • the cutting edge 28 is V-shaped in plan view.
  • a clearing surface 29 is provided, which points in the direction of movement and has the task of depositing good particles on the slide support surface 20 and between the longitudinal side surfaces of the flat slide 2 and the housing 1 Drainage channel 19 or to be transported into the passage channel 7.
  • the flat slide valve 2 which is designed to be self-supporting at its front end and is supported with its rear end on the slide bearing surface 20 and in the slide slot 21, is actuated by actuating means in the form of a pneumatic cylinder-piston system comprising cylinder 30 and piston 31 with piston rod 32.
  • the cylinder 30 is with the insertion of an intermediate flange 33 attached by screws 34 to the flanges 25a, 26a of the attachments 25, 26.
  • the piston rod 32 has a piston rod head 32a at the front, which is pivotally connected to the flat slide 2 by a bolt 35.
  • the bolt 35 is in turn fixed to the piston rod head 32 by a holder 36.
  • the cylinder 30 of the cylinder-piston system is connected in the usual way via two pipes, not shown, to the same compressed air source as the chamber 24 and the bore 16, the compressed air being controlled accordingly with the aid of known control valves.
  • the chamber 24 receiving the flat slide valve 2 in the open position or the piston rod 32 is constantly under an overpressure which is higher than the delivery pressure in the material passage 6, 7 of the housing 1.
  • the material passage 6 of the housing part 3 is completely filled with material from the material inlet pipe.
  • the shut-off device is now to open the material passage 6, 7 for feeding the material into the pressure vessel, the material passage 7 of the housing part 4 is first relaxed to atmospheric pressure and then the sealing ring 13 is relieved of pressure in the known manner. Then, by corresponding actuation of the cylinder-piston system or loading of its piston 31, the piston rod 32 is drawn into the cylinder 30 and the flat slide connected to it is moved into its open position by means of the piston rod head 32a and bolt 35, whereby any particles of good adhering to it Sealing strips 22, 23 are stripped off and even the finest dust from the flat slide valve 2 cannot be entrained into the chamber 24 because the excess pressure prevailing in the chamber during operation of the system prevents this.
  • the material passage 6, 7 of the housing 1 is completely filled with flowing material except for the free space 10 according to the invention.
  • the material bends off from the edge 11a of the undercut 11 in accordance with its angle of repose (see slope line 37 - FIG. 1).
  • the cylinder-piston system is actuated again, in such a way that the piston rod 32 is extended from the cylinder 30 and the flat slide 2 coupled to it its closed position is moved, as illustrated in Fig. 1.
  • the flat slide 2 moves through the column of material located in the passage channel 6, 7, the material displaced by it can escape into the free space 10 according to the invention. In this case, any jamming or blocking is avoided by the self-supporting, guideless design of the flat slide 2.
  • the material that is cut off by the undercut 11 provided in this area acts as a kind of preliminary scraper. which is gentle on the cutting edge and gentle on the cutting edge.
  • the sealing ring 13 is inflated again in the usual manner, which reliably seals the material passage channel 6, 7 gas-tight against 6 bar. Subsequently, the good passage channel 7 of the housing part 4 is again placed under positive pressure. This completes one work cycle and the shut-off device is ready for a new work cycle.

Landscapes

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

Claims (5)

1. Obturateur pour systèmes de transport pneumatique pour le transport de matières en vrac roulables, constitué par une enveloppe incorporée au système de transport et comprenant un conduit de passage des matières et un registre plan qui est orienté transversalement par rapport à ce conduit et monté dans une fente à registre étanche ménagée dans l'enveloppe et qui peut se déplacer, sous l'action de dispositifs de déplacement, à travers la colonne ou le courant de matières dans le conduit de passage des matières, qu'il ferme ou ouvre, l'enveloppe comportant une bague d'étanchéité qui entoure le conduit de passage des matières et peut être poussée par un milieu à pression contre le registre et, de ce fait, rend hermétiquement étanche à la pression le conduit de passage des matières, caractérisé en ce que :
a) le registre plan (2) est rigide et ne prend appui dans l'enveloppe (1) que par son extrémité arrière, mais, par contre, n'est pas supporté à son extrémité avant,
b) le côté de l'enveloppe (1) qui est tourné vers l'extrémité non supportée du registre comporte un espace libre (10) dont le volume est au moins égal au volume des matières poussées dans le conduit de passage (6, 7) des matières par le registre plan (2) au moment de son mouvement de fermeture,
c) l'enveloppe (1) est en deux parties et la contre-surface correspondant au registre plan (2) est constituée par une surface frontale libre (9) de la partie d'enveloppe (3) située du côté arrivée formée par un élargissement de la partie d'enveloppe (4) du côté sortie,
d) la zone de la surface frontale (9) comporte une rainure annulaire (12) dans laquelle s'insère un anneau d'étanchéité gonflable (13).
2. Obturateur selon la revendication 1, caractérisé en ce que la partie d'enveloppe (3) du côté arrivée comporte un évidement (11) au niveau de l'extrémité de sortie de son conduit (6) de passage des matières.
3. Obturateur selon la revendication 1, caractérisé en ce que la partie d'enveloppe (4) située du côté sortie comporte, sur chacune de ses parois latérales voisines des côtés longitudinaux du registre plan (2), au moins une rigole d'évacuation (19) qui s'ouvre dans son conduit (7) de passage des matières.
4. Obturateur selon l'une des revendications 1 à 3, qui comprend dans son enveloppe (1) une chambre (24) qui assure l'isolation à la pression de la fente à registre (21) vers l'extérieur, caractérisé en ce que la chambre (24) est reliée à une source d'air comprimé dont la pression est supérieure à la pression de l'air dans le conduit (7) de passage des matières dans la partie d'enveloppe (4) située du côté sortie.
5. Obturateur selon la revendication 1, caractérisé en ce que le registre plan (2) comporte à son extrémité avant une arête vive (28) qui, vue de dessus, a une forme en V et, sur chacun de ses deux côtés, une surface de dégagement (29) orientée dans le sens du déplacement et placée à proximité de l'arête coupante (28) en étant décalée dans le sens de la longueur.
EP83112337A 1982-12-27 1983-12-08 Obturateur pour système de transport pneumatique pour transporter des matières en vrac roulables Expired EP0114278B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83112337T ATE26607T1 (de) 1982-12-27 1983-12-08 Absperrvorrichtung fuer pneumatische foerdersysteme zum transport rieselfaehiger schuettgueter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3248228 1982-12-27
DE19823248228 DE3248228A1 (de) 1982-12-27 1982-12-27 Absperrvorrichtung fuer pneumatische foerdersysteme zum transport rieselfaehiger schuettgueter

Publications (2)

Publication Number Publication Date
EP0114278A1 EP0114278A1 (fr) 1984-08-01
EP0114278B1 true EP0114278B1 (fr) 1987-04-15

Family

ID=6181909

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112337A Expired EP0114278B1 (fr) 1982-12-27 1983-12-08 Obturateur pour système de transport pneumatique pour transporter des matières en vrac roulables

Country Status (3)

Country Link
EP (1) EP0114278B1 (fr)
AT (1) ATE26607T1 (fr)
DE (2) DE3248228A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4000139A1 (de) * 1990-01-04 1991-07-11 Schuette Meyer Schuettgutabspe Flachschieber, insbes. schuettgutschieber
US5893567A (en) * 1997-03-11 1999-04-13 Anag A. Nussbaumer Ag Sealing system for sealing an opening
WO2000050790A2 (fr) 1999-02-23 2000-08-31 Bernd Federhen Joint gonflable

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3730419A1 (de) * 1987-09-11 1989-03-30 Avt Anlagen Verfahrenstech Drehschieber
AT392624B (de) * 1989-07-13 1991-05-10 Andritz Ag Maschf Vorrichtung zur befoerderung von material zwischen raeumen unterschiedlichen drucks sowie verfahren zum betrieb der vorrichtung
DE4114902A1 (de) * 1991-05-07 1992-11-12 Krupp Polysius Ag Absperrvorrichtung
DE4114901A1 (de) * 1991-05-07 1992-11-12 Krupp Polysius Ag Absperrvorrichtung
DE9214482U1 (de) * 1992-10-27 1992-12-17 Schütte-Meyer Schüttgutabsperrtechnik GmbH, 5860 Iserlohn Vorrichtung zum Öffnen und Schließen einer Durchtrittsöffnung für fließfähiges Fördergut, insbesondere Schüttgut
CH706724B1 (de) * 2012-07-12 2016-12-30 Sistag Ag Absperrtechnik Plattenschieber zum Absperren von Leitungen, vorzugsweise für Biogaserzeugungsanlagen, die Medien mit Festbestandteilen führende Leitungen aufweisen.
WO2019123054A1 (fr) * 2017-12-22 2019-06-27 Pirelli Tyre S.P.A. Appareil de dosage pour doser des ingrédients de composés en particulier pour pneus et procédé de dosage d'ingrédients de composés en particulier pour pneus
CN113294534B (zh) * 2021-07-15 2024-03-01 江苏华英阀业有限公司 一种闸阀
CN114922994B (zh) * 2022-06-30 2023-09-15 靖江佳佳精密机械科技有限公司 一种气驱动式密封真空阀门

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8211810U1 (de) * 1982-09-23 Schäffer, Erich, Dipl.-Ing. (FH), 8851 Thierhaupten Als Schieberverschluß ausgebildetes Absperrgerät
DE7104206U (de) * 1971-04-29 Miag Gmbh Flachschieber
DD75912A (fr) *
DE615970C (de) * 1931-12-12 1935-07-17 Internat Cement Gun Company G Fuer Druckluftfoerderanlagen bestimmte Doppelkammeraufgabevorrichtung mit durch Druckluft zu schliessenden und zu oeffnenden Schiebern
DE677394C (de) * 1937-10-16 1939-06-24 Willy Siebert Mit Druckluft betriebene Vorrichtung zum Foerdern von Massenguetern
FR857652A (fr) * 1939-07-10 1940-09-24 Ph Lafon Ets Dispositif étanche d'obturation avec vanne pour silos et autres récipients
CH225217A (de) * 1942-01-24 1943-01-15 Oederlin Cie Ag Absperrschieber.
US2891762A (en) * 1954-06-10 1959-06-23 Charles W Kellogg Gate valve
US2824715A (en) * 1956-06-04 1958-02-25 John L Williams Non-clog stock valve
DE1096135B (de) * 1957-07-08 1960-12-29 Westad Armaturfab Absperrschieber fuer Holzschliff u. dgl.
US3170670A (en) * 1961-10-27 1965-02-23 Crane Canada Ltd Two-way pulp stock valve
DE1264191B (de) * 1963-01-15 1968-03-21 Hochvakuum Appbau Emil Kammere Absperrschieber
US3164363A (en) * 1963-01-24 1965-01-05 John L Williams Valve having seat-carrying flange
FR1377958A (fr) * 1963-12-27 1964-11-06 Stein & Roubaix Vanne à double obturateur
FR1587714A (fr) * 1968-08-30 1970-03-27
US4026517A (en) * 1976-03-17 1977-05-31 New Concepts, Inc. Biasable seal for gate valves

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4000139A1 (de) * 1990-01-04 1991-07-11 Schuette Meyer Schuettgutabspe Flachschieber, insbes. schuettgutschieber
US5893567A (en) * 1997-03-11 1999-04-13 Anag A. Nussbaumer Ag Sealing system for sealing an opening
WO2000050790A2 (fr) 1999-02-23 2000-08-31 Bernd Federhen Joint gonflable

Also Published As

Publication number Publication date
ATE26607T1 (de) 1987-05-15
DE3370983D1 (en) 1987-05-21
EP0114278A1 (fr) 1984-08-01
DE3248228A1 (de) 1984-06-28

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