FR2884234A1 - Pneumatic de-clogging system for e.g. silo, has filling chamber containing air that is liberated into blasting chamber causing pneumatic explosion whose impact force is necessary to allow flow of clogging material - Google Patents

Pneumatic de-clogging system for e.g. silo, has filling chamber containing air that is liberated into blasting chamber causing pneumatic explosion whose impact force is necessary to allow flow of clogging material Download PDF

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Publication number
FR2884234A1
FR2884234A1 FR0503638A FR0503638A FR2884234A1 FR 2884234 A1 FR2884234 A1 FR 2884234A1 FR 0503638 A FR0503638 A FR 0503638A FR 0503638 A FR0503638 A FR 0503638A FR 2884234 A1 FR2884234 A1 FR 2884234A1
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Prior art keywords
chamber
pneumatic
clogging
impact force
compressed air
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FR0503638A
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French (fr)
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FR2884234B1 (en
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Thomas Richard Francoi Dionnet
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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
    • B65D88/70—Large containers characterised by means facilitating filling or emptying preventing bridge formation using fluid jets
    • B65D88/703—Air blowing devices, i.e. devices for the sudden introduction of compressed air into the container

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

The system has a three-way control valve supplied with compressed air by an admission chamber (A). A blasting chamber (C) is closed by a piston bolted on a guide and maintained by the pressure exerted by a spring. The air travels into a filling chamber (B), via a sufficient gap between the guide and lateral walls of a closing plate. The piston and the guide are pushed towards the rear of the plate during sudden emptying of the chamber (A). The air contained in the chamber (B) is liberated into the chamber (C) causing pneumatic explosion whose impact force allows flow of a clogging material.

Description

La présente invention concerne un système de décolmatage pneumatiqueThe present invention relates to a pneumatic declogging system

industriel pour permettre l'écoulement mécanique de matières stockées colmatantes et pulvérulentes dans des silos et trémies, et qui ne s'évacuent pas de manière naturelle.  industrial to allow the mechanical flow of clogging and powdery storage materials in silos and hoppers, and which do not drain naturally.

La technique habituellement utilisée est le ringardage manuel, soit à l'aide de marteaux frappant l'enveloppe métallique de l'unité de stockage, soit à l'aide de pics ou lances à air plantés dans la matière stockée qui ne s'écoule pas.  The technique usually used is the manual interlocking, either with hammers striking the metal casing of the storage unit, or with the help of picks or air lances planted in the stored material that does not flow. .

Le risque d'accident pour les opérateurs est réel, et difficile à anticiper en cas d'éboulement brutal de la matière.De plus, l'environnement poussiéreux et les conditions de température parfois élevées rendent ce travail ingrat.  The risk of accidents for operators is real, and difficult to anticipate in the event of a sudden collapse of the material. Moreover, the dusty environment and the sometimes high temperature conditions make this work ungrateful.

Le dispositif selon l'invention permet de remédier a ces dangers. Il permet en effet de prévenir ces risques en mécanisant le ringardage et de ce fait protége l'opérateur qui déclenche l'écoulement de la matière à distance.  The device according to the invention makes it possible to remedy these dangers. It allows to prevent these risks by mechanizing the ringardage and thus protects the operator who triggers the flow of the material at a distance.

L'action de l'air comprimé permet de créer une déflagration pneumatique dont la force d'impact est suffisante pour forcer l'écoulement de la matière stockée.  The action of the compressed air creates a pneumatic deflagration whose impact force is sufficient to force the flow of the stored material.

Les dessins annexés illustre l'invention La figure 1 représente en coupe le dispositif de l'invention en mode admission et remplissage.  The accompanying drawings illustrate the invention. FIG. 1 represents in section the device of the invention in admission and filling mode.

La figure 2 représente en coupe le dispositif de l'invention en mode de tir En référence à ces dessins, le dispositif comporte une vanne 3 voies (6) munie de trois orifices: d'admission (A), de remplissage (B) et de tir (C).  FIG. 2 represents in section the device of the invention in firing mode. With reference to these drawings, the device comprises a 3-way valve (6) provided with three orifices: intake (A), filling (B) and shooting (C).

L'admission (figure 1) L'air comprimé pénètre par le plateau de fermeture (1) dans la chambre arrière (A). Un piston circulaire (5) boulonné (3) sur un guide creux (4) obture l'orifice de la chambre de tir (C) grâce a un ressort (2) maintenant l'ensemble piston (5) et guide creux (4) en pression mécanique étanche sur ce même orifice.  Inlet (Figure 1) Compressed air enters through the closure plate (1) into the rear chamber (A). A circular piston (5) bolted (3) on a hollow guide (4) closes the orifice of the firing chamber (C) through a spring (2) holding the piston assembly (5) and hollow guide (4) in mechanical pressure sealed on the same hole.

Le remplissage (figure 1) L'air comprimé fuit dans la chambre de remplissage (B) grâce à un faible jeu suffisant entre les parois latérales du plateau de fermeture (1) et du guide creux (4) pour permettre cette fuite laminaire.  Filling (Figure 1) Compressed air leaks into the filling chamber (B) due to a small clearance between the side walls of the closure plate (1) and the hollow guide (4) to allow this laminar leakage.

Le tir (figure 2) La sortie brutale de l'air contenu dans la chambre d'admission (A) est déclenchée par la vidange instantanée de l'air contenu dans cette même chambre (A) et dans le guide creux (4).La dépression constatée dans la chambre d'admission (A) va plaquer l'ensemble piston (5) et guide creux (4) sur l'arrière du plateau de fermeture (1).  Firing (Figure 2) The sudden exit of the air contained in the intake chamber (A) is triggered by the instantaneous emptying of the air contained in the same chamber (A) and in the hollow guide (4). The depression found in the intake chamber (A) will press the piston assembly (5) and hollow guide (4) on the rear of the closure plate (1).

L'étanchéité sur l'orifice de la chambre de tir (C) est brutalement rompue, et 10 l'air contenu dans la chambre de remplissage (B) est abruptement relâché dans la chambre de sortie....créant la déflagration requise pour l'évacuation de la matière stockée.  The seal on the orifice of the firing chamber (C) is abruptly broken, and the air contained in the filler chamber (B) is abruptly released into the exit chamber .... creating the required deflagration to evacuation of the stored material.

A titre non limitatif, la vanne trois voies (4) a des dimensions différentes en fonction de la taille des trémies et silos ainsi que du degré de colmatage constaté de la matière.  Non-limiting, the three-way valve (4) has different dimensions depending on the size of the hoppers and silos and the degree of clogging found the material.

Le dispositif selon l'invention est particulièrement destiné à l'évacuation de matières colmatantes dans des silos et trémies contenant de la matière 20 pulvérulente.  The device according to the invention is particularly intended for the evacuation of clogging materials in silos and hoppers containing pulverulent material.

Claims (5)

REVENDICATIONS (1) Dispositif pour éliminer les matières colmatantes dans les silos et trémies grâce a une vanne trois voies pneumatique dont la mise en action permettra l'écoulement de la matière stockée.  (1) Device for eliminating clogging materials in silos and hoppers by means of a pneumatic three-way valve whose activation will allow the flow of the stored material. (2) Dispositif selon la revendication 1 que le piston circulaire (5) peut être inversé lorsque sa section latérale faisant étanchéité sur l'orifice de la chambre de tir (C) est usée. Cela permet une utilisation double de ce piston circulaire.  (2) Device according to claim 1 that the circular piston (5) can be inverted when its side section sealing on the orifice of the firing chamber (C) is worn. This allows double use of this circular piston. (3) Dispositif selon la revendication 2 que l'usure du guide creux (4) ne porte pas sur la vanne elle-même (6) mais sur les parois du plateau arrière (1).Ceci signifie une fréquence de remplacement des vannes amoindrie.  (3) Device according to claim 2 that the wear of the hollow guide (4) does not relate to the valve itself (6) but on the walls of the rear plate (1) .This means a reduced valve replacement frequency . (4) Dispositif selon la revendication 3 que l'existence d'une chambre d'admission (A) cloisonnée et complètement indépendante de la chambre de remplissage (B) ne permet pas à l'air comprimé de s'échapper, lors du tir, à travers le jeu faible et suffisant du guide creux (4) et du plateau de fermeture (1) dans cette même chambre d'admission mais oblige l'air comprimé a s'échapper directement dans la chambre de tir (C) dont la section de l'orifice est largement supérieur au jeu.  (4) Device according to claim 3 that the existence of an inlet chamber (A) partitioned and completely independent of the filling chamber (B) does not allow compressed air to escape when firing , through the weak and sufficient clearance of the hollow guide (4) and the closure plate (1) in the same admission chamber but forces the compressed air to escape directly into the firing chamber (C) whose section of the hole is far superior to the game. (5) Dispositif selon la revendication 4 que le diamètre de la chambre de tir (C) est restreint en son milieu d'après sa longueur. Cela permet une accélération de l'air comprimé selon le principe bien connu de l'effet Venturi .Cette accélération de l'air augmente la force d'impact directement dans la chambre de tir (C) de la vanne trois voies.  (5) Device according to claim 4 that the diameter of the firing chamber (C) is restricted in the middle according to its length. This allows an acceleration of the compressed air according to the well-known principle of the Venturi effect. This acceleration of the air increases the impact force directly in the firing chamber (C) of the three-way valve.
FR0503638A 2005-04-12 2005-04-12 AIR-SUPPLY VALVE COMPROMISED AND INSTANTLY DRAINED TO CREATE A PNEUMATIC DEFLAGRATION IN ORDER TO REMOVE THE MATERIALS FROM THE WALLS OF AN SILO OR ANY STORAGE UNIT Expired - Fee Related FR2884234B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0503638A FR2884234B1 (en) 2005-04-12 2005-04-12 AIR-SUPPLY VALVE COMPROMISED AND INSTANTLY DRAINED TO CREATE A PNEUMATIC DEFLAGRATION IN ORDER TO REMOVE THE MATERIALS FROM THE WALLS OF AN SILO OR ANY STORAGE UNIT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0503638A FR2884234B1 (en) 2005-04-12 2005-04-12 AIR-SUPPLY VALVE COMPROMISED AND INSTANTLY DRAINED TO CREATE A PNEUMATIC DEFLAGRATION IN ORDER TO REMOVE THE MATERIALS FROM THE WALLS OF AN SILO OR ANY STORAGE UNIT

Publications (2)

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FR2884234A1 true FR2884234A1 (en) 2006-10-13
FR2884234B1 FR2884234B1 (en) 2009-08-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102887306A (en) * 2011-07-19 2013-01-23 丁起冲 Energy-saving type anti-blocking material blow-sweeping head

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4579138A (en) * 1983-06-15 1986-04-01 Herve Simoens Piston and valve arrangement
US4817821A (en) * 1985-10-31 1989-04-04 Simoens Herve H J Valve for pressurizing a compressed gas accumulator and for the sudden discharge of gas from the accumulator
EP1223118A1 (en) * 2001-01-11 2002-07-17 Agrilux Beteiligungs GmbH Valve for an impulse blowing of compressed air in order to remove caked or accumulated material
FR2831079A1 (en) * 2001-10-19 2003-04-25 Larix Srl Automatic valve for instantaneous discharge at maximum compatible flow of aeriform for fluidizing granular and/or powdered materials, comprises interchangeable parts to form different operational configurations
FR2850139A1 (en) * 2003-01-16 2004-07-23 Herve Simoens Accessory for abrupt air discharge device e.g. air gun, is mounted on end of outlet duct of abrupt air discharge device where air of tube section decreases and then increases, respectively to form convergent and divergent sections

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4579138A (en) * 1983-06-15 1986-04-01 Herve Simoens Piston and valve arrangement
US4817821A (en) * 1985-10-31 1989-04-04 Simoens Herve H J Valve for pressurizing a compressed gas accumulator and for the sudden discharge of gas from the accumulator
EP1223118A1 (en) * 2001-01-11 2002-07-17 Agrilux Beteiligungs GmbH Valve for an impulse blowing of compressed air in order to remove caked or accumulated material
FR2831079A1 (en) * 2001-10-19 2003-04-25 Larix Srl Automatic valve for instantaneous discharge at maximum compatible flow of aeriform for fluidizing granular and/or powdered materials, comprises interchangeable parts to form different operational configurations
FR2850139A1 (en) * 2003-01-16 2004-07-23 Herve Simoens Accessory for abrupt air discharge device e.g. air gun, is mounted on end of outlet duct of abrupt air discharge device where air of tube section decreases and then increases, respectively to form convergent and divergent sections

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102887306A (en) * 2011-07-19 2013-01-23 丁起冲 Energy-saving type anti-blocking material blow-sweeping head

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Publication number Publication date
FR2884234B1 (en) 2009-08-21

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