FR2505209A1 - TANK FOR TREATING A MATERIAL HAVING A PERMEABLE NATURE OF A FLUID - Google Patents

Abstract

1. Vat for processing a substance of a nature permeable by a fluid, particularly but not exclusively a dye vat, in which the substance is soaked in the processing fluid and/or is traversed by the latter, including means for the introduction and removal of the fluid, and means of circulating the fluid placed in the vat, characterized by the fact that it includes mobile means of piping the fluid having a position in which the means of circulation create a forced circulation of the fluid in closed circuit within the vat, and a position in which the same means of circulation create a forced circulation of the fluid in open circuit over the remainder of the processing installation.

Description

The invention relates to a treatment vessel for a machine

  However, the invention is particularly but not exclusively related to a tank.

  stain, integrated into a dyeing plant.

  In the case of such installations, a tank, inside which is the material to be treated, is filled with a fluid, which may be for example a dyeing liquid, fixing, rinsing, or steam, then this fluid is forced into forced circulation inside the tank, so as to achieve a homogeneous treatment

of the material.

  It is necessary that such a tank has on the one hand a filling or emptying pump, and on the other hand means ensuring

  the forced circulation of the fluid in the volume it defines.

  their, the treatment, corresponding to a forced circulation of the fluid, and the filling or the vi-dange are operations which must be

  performed one independently of the other.

  On the other hand, the treatment fluid loses its effectiveness during the treatment, and can hardly be renewed or recycled.

  during treatment, because of the independence of the treatment phase.

  This is particularly noticeable for a rinsing operation. In fact, the rinsing water is dirty, and this must be done in several times, from where several

  filling and emptying phases of the tank.

  One of the aims of the present invention is to propose a tank

  for which unique means of circulation are likely to

  at the same time the forced circulation of the fluid for the treatment phase,

  and the filling or emptying phase.

  Another object of the present invention is to propose a tank,

  for which the treatment phase can start before the end of the

  pleating of the tank, and possibly can continue during the phase

emptying thereof.

  Another object of the invention is to propose a tank for

  which the treatment fluid can be renewed or recycled during

the treatment phase.

  Other objects and advantages of the present invention will become apparent

  during the following description, which is however not

  as an indication, and which is not intended to limit it.

  The treatment tank, according to the invention, of a material presented

  2- a nature permeable to a fluid, especially but not exclusively

  dyeing tank, in which the material is immersed in the treatment fluid.

  and / or istravelled by it, including means for introducing

  tion and discharge of the fluid, as well as fluid circulation means in the tank, is characterized in that it comprises mobile fluid channeling means, having a position in which the circulation means establish a forced circulation fluid in closed circuit in the tank, and a position in which the same means of circulation establish a forced circulation of the

  fluid in open circuit on the remainder of the treatment plant.

  The invention will be better understood if we refer to the descrip-

  below, as well as to the attached drawings which form part of it

  grante. FIG. 1 schematically represents, in section, a

  tank, as an illustration of the present invention.

  Figure 2 shows in section the lower part of the tank

  FIG. 1, and more particularly the mobile means for channeling

  tion of the fluid, in a nonlimiting embodiment.

  FIG. 3 is a view similar to that of FIG.

  which the mobile pipe means are in another position.

  FIG. 1 represents by way of illustration of the invention

  a treatment tank 1 of a known type, preferably cylindrical,

  part of a treatment facility.

  Inside this vessel are arranged, for example, coils 2 of fibers to be treated These coils are threaded in batches on pins 3, which are themselves secured to a material-carrying tray 4. The tray carries -material and the pins 3 are crossed by the treatment fluid, which also passes through, from the pins

3, the coils 2 to be processed.

  Circulation means realize a forced circulation of the fluid inside the volume defined by the tank. These means are for example constituted by a turbine 5, preferably coaxial with the tank,

  entralnée by a motor 6 or by any other appropriate device.

  To facilitate the forced circulation, the turbine 5 is disposed inside a conduit 7, coaxial thereto, and in communication in its upper part with the interior of the material carrier 4

  and thus with the inside of the pins 3.

-3-

  The tank also has reversible means for introducing

  8 and 9 These means are located in the lower part of the tank. These means consist of

  ducts which open into the tank, which are

  equipped with valves. In the following, it will be considered the case where the fluid circulates

  from the introduction means 8 to the evacuation means 9

  during, as it will appear, reverse circulation is also

  possible, and is within the scope of the present invention.

  The tank 1 also has other means of a known type, which are not shown in the figures, and which consist for example of a device for controlling the level of liquid in the tank, means for putting the tank under pressure or vacuum, means for heating the fluid, etc. Figures 2 and 3 show the vessel 1, in partial view,

  At this level, the means of introduction

  8 discharge into the volume of the tank via a housing 11, and a communication port 12 Preferably, the orifice is circular and has axis axis 13 of the tank Also, the bottom wall of the housing It is substantially perpendicular to the axis 13 The housing 11,

  in the case of the figures, is crossed by the axis 14 of the turbine 5.

  According to the invention, mobile fluid channeling means are located in the lower part of the tank. These means have two positions. In one of these positions, the turbine 5, or more generally the circulation means, establish a forced circulation. fluid in closed circuit in the tank In this position,

  the tank is insulated from the outside in the other way.

  the same means of circulation establish a forced circulation of the fluid in open circuit on the remainder of the installation of

  This open circuit circulation may allow the filling of

  wise of the tank, its emptying, or the renewal of the treatment fluid.

  In the first extreme position, closure means seal the orifice 12 of communication of the introduction means 8 with the interior volume of the tank. The introduction means are therefore isolated from the tank. 9 discharge can be closed by means of a valve The circulation means 5 realize a forced circulation of the liquid which passes through the conduit 7, the tray

  material carrier 4, the pins 3, then the coils 2 The fluid is

  followed by his own movement towards the lower part of the

  tank, where it is again driven by the turbine 5.

  In the second extreme position, closure means close off the zone 15 between the lower part of the duct 7 and the lower wall of the tank, and the introduction means 8 are in communication with the volume of the tank. In fact, the circulation means 5 realize a forced circulation of the fluid coming from the introduction means 8 In the case where the fluid is renewed, or recycled outside the installation, it can be

  evacuated by means of evacuation 9.

  In the case of the figures, the closure means comprise

  respectively two sealing rings 16 and 17 These rings are omitted

  In other words, in normal operation, the closing position of one of the rings corresponds to the withdrawal or the non-sealing position of the other. The two sealing rings 16 and 17 can stand together and be

  displaced by unique means, or to present their means of

clean.

  Preferably, the ring 17 is located outside the duct 7, and slides sealingly along it. The ring 17 is

  shown in FIG. 2 in a non-shutter position, and in FIG.

  FIG. 3 in a closed position where it closes the zone 15 between the lower part of the duct 7 and the lower wall of the tank, or an annular abutment 18 situated at the orifice 12, and

  which protrudes substantially towards the interior of this orifice.

  The ring 16 preferably has a diameter, in its

  The maximum diameter of its upper portion 20 is smaller than the inner diameter of the conduit 7 Its maximum diameter is substantially equal to the diameter of the orifice 12, or to the inside diameter of the annular abutment 18 , as

this is the case of Figures 2 and 3.

  Figure 2 shows the ring 16 in the closed position.

  In this position, its lower part is housed in the orifice 12, or in the annular ring 18, and its upper portion 20 fits into a plate 21, which performs its obturation FIG 3 shows the ring 16 in its position Preferably, in this case, its lower part 19 comes into contact with the lower wall

boot maker 11.

  FIGS. 2 and 3 respectively represent the channeling means constituted by the rings 16 and 17, in their two extreme positions corresponding to a normal operation of the vessel in closed circuit or in open circuit. The distance of movement of the two rings. -16 and 17 from a non-shutter position to a position

  shutter is substantially identical.

  The two rings can be joined together, or be

  ordered by separate means, which allows in particular

  from an open-circuit regime to a closed-loop regime, or an inver-

  Then, place the two rings in the closed position.

  In Figure 2, the arrows 22 schematize the circulation

  fluid in a closed circuit in the tank, at the level of the lower

  The arrows 23 schematize a circulation in the opposite direction, obtained in the reversion of the circulation means 5 In the case of the arrows 22, the fluid in return of the coils 2 is sucked by the

  means 5, and passes between the outer wall of the ring 16, and the

  21, the inner wall of the conduit 7 Then it is repressed

  by the means 5 to the plate 5, the pins 3 and the coils 2.

  To facilitate this circulation, the end part of the duct 7

  a gooseneck shape, as well as the end portion of the ring 17, and as shown in FIG. 2, these two gooseneck parts are in the extension of one another. The ring 16, as for it, present at its lower part 19 a flared shape

  outward, as shown in Figure 2.

  In FIG. 3, the arrows 24 schematize the circulation of the fluid introduced into the tank by the introduction means 8. The arrows 25 schematize an inverse circulation, obtained by the reversion of the means 5. In the case of the arrows 24, the fluid is channeled. over there

  17, which is in the closed position, towards the means of circula-

  5, and is forced into the tray 4, the pins

3, and the coils 2.

  The flow of the fluid schematically by the arrows 24 may correspond to a filling of the tank, or to a fluid introduction, while it is discharged by the evacuation means 9 Similarly, the arrows 25 may correspond to a drain of the tank or a fluid outlet It should be noted that the flared shape of the lower part 19 of the ring 16 also facilitates the circulation of the fluid

in the case of Figure 3.

  Of course, appropriate sealing means ensure

  sealing or sliding of the rings 16 and 17.

  Thus, the present invention allows a more

  ple of a treatment tank, and a shorter treatment time.

  For example, the treatment of a material may begin during the phase of introduction of the fluid, as is apparent from Figure 3 Indeed, the means 5 realize a forced circulation in

  the pins 3 and the coils 2 of the introduced fluid.

  In the case of rinsing, it will be possible to rinse permanently

  with clean water by introducing it by means 8 and

  by the means 9, or vice versa. This is also valid for

  a treatment with a product that is recycled outside the tank.

  On the other hand, the circulation means 5 make it possible to accelerate the replacement

  pleating or emptying the tank via the means 8.

  The channeling means also allow the pressurization or vacuum of the tank, and realize this pressurization or evacuation of the outside of the material inward or vice versa. The present invention is capable of many applications, not only in the textile field, but also in the agri-food field.

  Naturally, this description is given only as a

  indicative, and other implementations of the inven-

  without departing from the scope of it.

2505 20 t 9 -7

Claims (8)

  1 treatment tank of a material having a nature perm   fluid, particularly but not exclusively dyeing tank, in which the material bathes in the treatment fluid, and / or is   crossed by it, including means of introduction and evacuation   fluid, as well as means for circulating the fluid in the tank, characterized in that it comprises mobile fluid channeling means having a position in which the circulation means establish a forced circulation of fluid in a closed circuit in the tank, and a position in which the same circulation means establish a forced circulation of the fluid in circuit   open on the rest of the treatment facility.   2 tank according to claim 1, characterized in that the circulation means are located in a duct inside the tank, and that the channeling means comprise first removable closure means of the zone between the lower end of the duct and the wall of the tank and direct communication between the introduction means or the evacuation means and the conduit means of circulation.   3 tank according to claim 2, characterized in that the circulation means further comprises second removable closure means of the communication between the introduction means   or the evacuation means and the inside of the tank.   4 tank according to claims 2 and 3, characterized by the   fact that the displacement of the removable closure means is linked, that in   normal operation the first means in the closed position cor-   corresponding to the second means in the non-sealing position and   flow of the fluid in an open circuit, and that the second   means in the closed position correspond to the first means in po-   non-sealing, which achieves a circulation of the fluid in closed circuit in the tank.   Tank according to claim 2, characterized in that the duct is coaxial with the tank, and that the first closure means   are constituted by a ring coaxial with the duct, capable of sliding   sealingly along the duct and closing in an extreme position the zone situated between the lower part of the duct and the wall of the tank, and establishing a direct communication between the duct and the means of introduction or evacuation that lead to the interior 1 ___ 8-   of the contact zone between the tank and the ring.   Vessel according to claims 3 and 5, characterized by the   that the communication between the introduction means or the evacuation means and the tank is constituted by a casing opening into the tank through an orifice coaxial with the tank, and that the second means   comprise a coaxial ring to close the coaxial orifice of   nication. 7 tank according to claim 6, characterized in that in the closed position, the ring of the second means is in contact   in its upper part with a tray, which closes in an his upper orifice.   8 tank according to claim 7, characterized in that the outer diameter of the upper part of the ring constituting the second means is smaller than the inner diameter of the duct means of circulation.   The vessel according to claims 6, 7, 8 or 8, characterized by   the fact that in the closed position, the lower end of the ring constituting the second means is substantially at the level of the lower wall of the tank, that in the closed position of the first means, the lower part of the ring second means is substantially at the bottom of the casing, the outer wall of the ring flares outwardly in its lower part, so as to facilitate the   channeling the fluid towards the conduit and the circulation means.   Vessel according to claim 5, characterized by the fact   that the lower part of the duct and the ring constituting the first   first sealing means is in the shape of a gooseneck, and that these forms of gooseneck are in the extension of one another when the   ring of the first means is in the non-shutter position.