FR2917491A1 - Exchange or lining body cleaning method for atmospheric cooling device, involves recovering steel balls and pieces of separated or broken deposits leaving via openings during or after processing channels, and separating balls from pieces - Google Patents

Abstract

The method involves introducing solid elements e.g. steel balls (60), in channels (E1) of exchange or lining body (E), where size of the elements permits their passage in the channels of the body between their inlet and outlet openings. The body is moved such that balls move by gravity in the channels for processing the channels by giving impacts on internal walls of the channels to take off deposits e.g. calcium sulfate. The balls and pieces of the deposits leaving via the openings are recovered during or after processing the channels by the balls. The balls are separated from the pieces. An independent claim is also included for a device for implementing a method for cleaning an exchange or lining body, comprising a support.

Description

Method of cleaning the packing body and device for such

process

  The subject of the present invention is a method for cleaning an exchange or packing body, also called in the "Packing" medium.

  Such exchange or packing bodies are used in atmospheric refrigeration devices used to cool water by transferring heat therefrom to a gas, in particular ambient air. This exchange of air-water heat is carried out in such a quench exchange body Qu pouring water in a series of channels of the exchange body, channels in which air passes. The air / water heat exchange is an exchange with direct contact of the cooling air with the water or other liquids to be cooled, this heat exchange being advantageously operated with countercurrent flows of air and water.

  The channels of such exchange or packing bodies often have a substantially hexagonal passage section, thus forming a series of juxtaposed cells or channels having a structure substantially similar to a honeycomb. Over time, the runoff channels become clogged with various deposits, which decreases the efficiency of the heat exchange between air and water. These deposits generally consist of sludge, such as, for example, clay sludge, silica sludge, scale deposits (calcium carbonate), calcium sulphate deposit, organic matter deposits, and the like. The various elements involved in the constitution of the deposit, its thickness, its hardness, its distribution in the channels depend on one exchange device to another and the quality of the water used. The weight of these deposits may be substantial, or even very large, and may for example exceed 5 times, or even 10 times the weight of clean water of the exchange body or packing.

  Until now the exchange or packing bodies with deposits affecting its efficiency were replaced by new exchange bodies or were treated with more or less aggressive solution, for example acid solution to attack scale deposits. etc. Such cleaning thus created a volume of waste in the form of a large suspension, waste requiring further processing. Cleaning was time consuming and was often too aggressive for the facilities. The volume of waste (suspension) is often important.

  The present invention is directed to a simple cleaning method of an exchange or packing body allowing an easy and quick cleaning, which can be carried out without the use of a particular chemical agent and which makes it possible to collect substantially dry waste in the form of particles. substantially dry. These substantially dry particles can be recycled according to their composition.

  According to the invention, the method relates to the cleaning of an exchange body or lining having a series of cells forming channels for a gas-liquid medium exchange, in particular air-water, said channels s' each extending at least between an inlet opening and an outlet opening and having a passage section defined by at least a minimum diameter or width, said exchange or packing body being at least partially covered by a deposit comprising at least one element selected from sludge, scale, calcium sulfate, organic matter, algae, and combinations thereof. According to the invention the process comprises at least the following steps: - the exchange or packing body is subjected to drying in order to obtain a sufficient dry deposit or in which the exchange or packing body is allowed to dry; - Introducing into the cells of the exchange or packing body solid elements whose size is chosen to allow their passage through the channels of the exchange or packing body between their inlet and outlet openings, said solid elements having a sufficient hardness to take off or break the dried deposit substantially without said solid elements being broken, - the exchange body or packing is set in motion so that the solid elements move at least by gravity in the channels of the exchange or packing body, for treating them by giving shocks on the internal walls of the channels to at least partially detach one or more deposits, - is recovered during and / or after a channel treatment by said elements solid elements solid and pieces of loose or broken deposits coming out of openings of the exchange or packing body, and - at least artiellement the solid elements of the pieces of deposits detached or broken.

  Advantageously, the exchange body is put in motion so that it undergoes at least one rotational movement and at least one translational movement, advantageously translational movements having at least one opposite component.

  In particular, the exchange or packing body is rotated at a selected speed to ensure that at least a portion of the solid elements are able to flow in channels at least substantially between their inlet opening and their exit opening, or vice versa.

  Preferably, the exchange or packing body is rotated at a selected speed to ensure that at least 75% by weight, advantageously at least 90% by weight of the solid elements, preferably substantially all the solid elements are suitable. flowing in channels at least substantially between their inlet opening and their outlet opening, or vice versa.

  According to one embodiment, the exchange or packing body is placed in a system maintaining the exchange or packing body in position relative to the system, said system being subjected to movement so that the solid elements move to the less by gravity in the channels of the exchange or packing body, to treat them by giving shocks on the inner walls of the channels to at least take off one or more deposits.

  The system is suitable: - to at least partially block inlet and outlet openings of the exchange or packing body, and / or - to form a first inlet / outlet chamber in the vicinity of inlet openings an exchange or packing body and a second inlet / outlet chamber in the vicinity of outlet openings of the exchange or packing body, said chambers being adapted to collect solid elements exiting the exchange or packing body; packing during movement thereof and for supplying channels of the exchange or packing body with solid elements, to and / or - to maintain the solid elements in the exchange or packing body at least during movement of it, while ensuring at least partial evacuation of deposits detached or broken out of the exchange body or lining. The system then advantageously comprises one or more lattices whose openings are calibrated with respect to the solid elements in order to keep them inside the exchange or packing body.

  According to an advantageous feature, the solid elements have a substantially spherical or ovoid shape. Other shapes are possible, such as for example cylindrical elements, prismatic elements, cubes, etc. These solid elements can be made of various materials, such as for example steel, lead, glass, crushed concrete, etc.

  The solids preferably have a density of at least 5, preferably at least 8 or more. The hardness of the solid elements will advantageously be chosen so as to be greater than the hardness of the deposits or the major part of the deposits.

  Advantageously, solid elements are substantially evenly distributed in all the channels of the exchange or packing body.

  According to one embodiment, solid elements are distributed in the channels of the exchange or packing body so that substantially each channel of the exchange or packing body is filled preferably between 1% in height and 4%. in height with solid elements.

  According to an advantageous detail of a process according to the invention, at least one parameter relating to the exchange or packing body, in particular a parameter related to the weight of the exchange or packing body or to the weight of material removed, is measured. out of the packing body to determine a level of cleaning, particularly if the cleaning operation is to be continued.

  The invention also relates to a particular device for implementing a preferred method according to the invention, said device comprising at least: a support; a rigid system comprising means for holding in position at least one exchange or packing body with respect to the rigid system, said rigid system being mounted at least in rotation relative to the support; means for connecting the rigid system to at least one drive device adapted for rotating the rigid system relative to the support, and at least one means adapted to maintain solid elements in the exchange body or filling during the rotation of the rigid system, and adapted to ensure at least partial discharge of deposits detached or broken out of the exchange body or lining.

  Advantageously, the support and / or the rigid system are adapted to undergo translational movements having at least one opposite component, while the support and / or the rigid system has at least one connection adapted to be attached to a generating means. at least translation movements in opposite directions.

  According to an advantageous detail, the device comprises a collector adapted to receive the detached or broken deposits coming out of the exchange or packing body.

  According to another advantageous detail, the device comprises at least one means for guiding a stream of gas towards the channels of the exchange or packing body to ensure drying thereof.

  According to one embodiment, the rigid system comprises a bottom advantageously perforated, an upper wall advantageously perforated, and at least four side walls perforated or not so as to define a chamber or a receiving chamber, the upper wall being mounted movably by relative to the side walls between a closed position for which the top wall is adapted to maintain an exchange or packing body in the receiving chamber or chamber and an open position adapted to allow the introduction of a body of exchange or packing in the enclosure or receiving chamber. Preferably, at least one side wall is movably mounted between a position at least partially spaced from a side wall opposite said side wall. In particular, the rigid system comprises two opposite side walls pivotally mounted relative to a frame adapted to support the bottom or in relation to the bottom, between at least a first position to define the chamber or the receiving chamber and a position away from this first position.

  Features and details of the invention will become apparent from the following detailed description, in which reference is made to the accompanying drawings.

  In these drawings, FIG. 1 is a view of the front face of a preferred device according to the invention, FIG. 2 is a side view of the device of FIG. 1, FIG. the front face of the moving part of the device of FIG. 1; FIG. 4 is a view of the front face of the box of FIG. 3 with a lateral end wall in the rotated position; FIG. 5 is a view of the face 3 of the box with a longitudinal side wall in the rotated position; FIG. 6 is a sectional view of a box, and FIG. 7 is a sectional view of a variant of a box similar to FIG. the figure of Figure 6.

  The device of Figure 1 comprises: - a frame 1 carrying a hopper 2, the bottom 3 is inclined to form a funnel 4 of collection; - A support 17 mounted movable (arrow X) relative to the frame 1 to undergo translational movements relative to the frame 1, said support 17 having arms 7; a mechanism 18, such as a jack or a geared motor with eccentric and link, to ensure the sliding of the support 17 relative to the frame 1, or more exactly to ensure the rolling of wheels or wheels associated with the support 17 on along the rails or guides 1a of the frame 1; - A rigid system in the form of a container or frame or box 5 adapted to receive and maintain in position at least one exchange body or packing E with respect to the rigid system 5, said rigid system being secured to two coaxial shaft ends 6, 6bis each taking support via a rolling mechanism 8 carried by a cross member 9 attached to the arms 7, said system 5 then being able to rotate about the axis AA of the shaft ends 6; and - a driving wheel 10 connected via one or more chains or belts 11 to a pulley or wheel 12 adapted to be rotated by a motor 13.

  The container or frame or box 5 is partially disposed in the hopper 2, the latter being adapted to allow the container 5 to rotate without it touching the walls of the hopper 2. During the rotation of the container or box 5, the solid elements 60, such as steel balls move in the channels El (arranged substantially perpendicularly to the grid 30) of the lining body E. During this movement, the balls 60 give shocks on the deposits so as to weaken, break, and take off. These detached deposits then descend by gravity to the grid 14, during the movement of the gate 30 downwards by the rotation (R) of the frame or box 5, to fall and be discharged into the hopper 2.

  The frame 5 or box is made by means of profiles 50 so as to reduce the weight of the frame. The armature or casing 5 intended to retain one or more packing bodies comprises: - profiles 50 for defining a lateral abutment 21 of a first substantially closed lateral side of a packing body and for serving as a support for the end of shaft 6, this lateral stop advantageously comprising a panel 21a (see Figure 2); - Profiles 50 to support 22 at the shaft end 6a, and one or more cylinders 52 or other adjustment mechanisms for moving a lateral stop 23 intended to come into contact with a second side substantially closed side of the body packing opposite said first lateral side, this lateral abutment advantageously comprising a panel 23bis and preferably being able to pivot see (FIGS. 3 and 4); - Profiles 50 to form a stop 24 for a first substantially closed longitudinal side of the packing body E, this stop 24 advantageously comprising a panel 24a (see Figures 2 and 6); - Profiles 50 to form a support 25 of one or more cylinders or adjusting mechanisms 62 for moving a longitudinal stop 61 for a second substantially closed longitudinal side of the lining body, the longitudinal stop 61 advantageously comprising a panel 61 bis mounted to pivoting so as to be able to move one end of the stop 61 or panel 61bis relative to the other stop 24 or longitudinal panel 24a (see Figures 2 and 5); a lower open armature 26 extending between the lower sections of the supports 22 and 25 and abutments 21 and 24, this armature carrying cylinders or other mechanisms 27 for moving a hollow element 29 comprising a lower grid 30 whose openings are calibrated to prevent the passage of the solid elements 60 used for the cleaning of the channels E1 of a packing body E, said hollow element defining between the lower gate and the exchange body to clean a bed of cleaning balls 60, and - a grid or an upper panel 65 for closing the upper frame of the structure or box 5, the grid or panel being mounted removably or movably to allow to easily place a packing body in the structure or box 5. If a grid is used, this grid has openings preventing the passage of the cleaning elements.

  Advantageously, the shafts 6, 6bis comprise two distinct parts able to be connected to each other by means of a connection 100. This makes it possible not to have to immobilize the device during the placement of a packing body. or exchange E in the box. Once the packing body E has been processed, the box is separated with parts of the shaft ends of the machine so that a new box previously equipped with an exchange body to be processed can be directly reinstalled.

  By moving the hollow member 29 carrying for example balls 60 upwards, the balls are introduced into the various channels of the packing body E to be cleaned. (see Figure 7)

  In one embodiment, the hollow element may comprise a grid 14 so that by moving the hollow element 29 towards the grid 14 by the jacks 27, the packing body E is blocked in the structure or box 5. After opening the structure 5 by removing or pivoting the upper panel or grid 65 and after rotating the longitudinal stop and the panel 25, 25 bis, is introduced into the box-like frame 5, cleaning balls. (For example steel) whose diameter is chosen so that they are not able to pass through the grid 30, but through the grid 14, so as to fill the hollow of the element 29.

  One or more exchange or packing bodies are then introduced into the open box 5, so that an opening of the channels E 1 is turned towards the grid 30 or 14. This packing body E has been subjected beforehand to a natural or forced drying, for example by blowing into the hot air channels.

  Finally, the panel 61bis is pivoted so as to block the longitudinal walls of the packing body E.

  Then the box 5 is closed by means of the grid or the panel 65.

  The cylinders 27 are activated so that the packing body is wedged between the grid or panel 65 and the grid 30 or 14.

  Actuator 52 is then activated to pivotally bring abutment 23 towards the side face of exchange body E (rotation of stop 23 towards stop 21), and thereby laterally block the lining body.

  Box 5 is then rotated with the packing body to be cleaned. During this rotation at a controlled speed, the balls 60 are caused to enter the 20 channels of the lining body (when the hollow element 29 is turned over, gate 14 facing downwards with respect to the grid 30) and to undergo reciprocating movements in the channels E 1. This reciprocating movement of the balls 60 makes it possible to attack the deposits present in said channels El. To increase the cleaning effect, translational movement is ensured. 5. The hopper 2 has a length adapted so that the box 5 during its translational movement (X) does not touch the side walls of the hopper 2.

  Broken or peeled off the channels out of the channels through the grids 65 and 14 as they face downwards. The deposits passing through the gate 14 then pass through the gate 30. These deposit particles thus fall into the hopper 2 to be collected in the chute 4. Advantageously, the box is rotated once in one direction (by example clockwise sense) and then in the other direction (eg anti-clockwise direction). The direction of rotation can thus vary several times on a cleaning operation of a packing body.

  The amount of deposits removed from the exchange body is weighed or the flow of deposits flowing in the hopper is examined to determine a cleaning condition. For example, by knowing the weight (for example the theoretical weight) of a clean exchange body and the weight of the exchange body to be cleaned, it is possible to determine a percentage of cleaning (amount of particles of recovered deposits divided by the difference between the weight of the exchange body to be cleaned and the weight of the clean (or theoretical) exchange body. As soon as this cleaning percentage reaches a certain value (for example more than 90%, or more than 95% or more), the cleaning process is stopped.

  It is also possible to examine the flow rate of particles flowing in the hopper to determine if one or more parameters for the movements of the box must be adapted and / or if the cleaning can be interrupted. The frame 1 can optionally be mounted on wheels to allow its movement to a refrigeration unit or cooling. In this case the frame 1 advantageously comprises retractable support lugs.

  The process allows: * High cleaning efficiency. The yield is advantageously defined by the ratio of the weight of the deposit removed to the weight of the deposit initially in the exchange or packing body or runoff, expressed in percent. * High productivity. Productivity is defined as the volume of exchange or packing or run-off bodies treated per unit of time and per machine. The productivity includes the possible time of removal.20 * simple implementation in a secure environment. This implementation ensures in particular: a. To maintain the integrity of runoff channels and existing facilities. (The machine does not damage run-off or installations) b. to use little energy c. not to require the use of chemicals or water

  d. to use secure machines in a limited space. (Limitation of handling) e. produce easily transportable deposits that can be recycled.

  The size and mass of the impactor or beads 60 or other solid elements will depend on the hardness and adhesion of the deposit, as well as the size of the cells that constitute the channels or runoff.

  Various operating parameters of the device may be set depending on the type of channels, the exchange body, its size, the type of deposits, etc. : * Impactor agent: shape; density; dimension ; quantity. * Speed of rotation * Speed of translation * Dimensions of the box * variation of the direction of rotation, oscillating movement The device represented in the figures meets the following criteria: * The packing or packing body is easy to introduce and to withdraw from the box, by example by means of a construction or lifting machine, even if its actual exact size is not known. The device has a high tolerance as to packing that can be treated. * The box is independent of the machine printing rotation and translation so as not to immobilize it during the time of installation and removal of the packing in a box. * The opening and closing of the box is simple and fast. * The packing is blocked in the box and is not damaged by the movement of the box, or by the impactor impactor, or by the effect of inertia. * The impactor is distributed at the base of all cells. The system forces the impactor to flow into the cells and, advantageously, to remain in cells throughout a cleaning operation without migrating from one cell to another. * The box is easily handled for its placement in the machine. The box is easily mounted on the device. * The deposit is evacuated throughout the cleaning process, which reduces the weight of the box to rotate, but also to allow a visual check of the cleaning performance.

  The cleaning efficiency depends for example on the quantity (initial weight) of the scale, its quality (hardness, humidity, ...), as well as the treatment parameters (duration, speed of rotation, speed of translation, parameters related to solid elements ...)

  The impactor or solid element 60 is advantageously a steel ball whose diameter is optimized according to the type of runoff channels to be cleaned so that its mass is sufficient to be able to break the scale layer, but whose diameter is small enough to prevent coalescence of the beads, but large enough for. In the case of a packing type "TR40V" scaled, the diameter of the balls is for example about 13.5 mm. The shape of the solid "impactor" agent may be different from that of a sphere, for example ovoid shape, roller shape, cylindrical shape, threaded rod or bar member, prismatic shape, bolt shape, etc. The material can be different from steel: stone; lead; glass, composite material, etc.

  The casing 5 is adapted to receive one or more exchange bodies or packing (parking) to be cleaned, as well as the impactor, or a mixture of impactors. The height of the box corresponds substantially to the height of the packing to be cleaned.

  It can vary for example from 0.5 m to 1.5 m. The box includes a mesh bottom allowing the scale to pass, but not the impactor. This bottom is advantageously mobile, for example placed on pneumatic cylinders. The impactor is deposited on this bottom in a uniform layer, for example 2 to 3 cm thick.

  A transverse wall and a longitudinal wall of the box are for example fixed, while another transverse wall and another longitudinal wall are advantageously movable relative to the base of the box, for example pivoting about an axis located at the base of the caisson or in the vicinity of this base. When these movable walls are in the open position, the upper opening of the box is larger than the packing. The box is then in the form of a funnel in which it is easy to deposit the packing which is positioned automatically in the bottom of the box.

  Once the packing deposited in the box, the movable side walls are placed in closed position on the packing by means of screws or jacks. The walls are locked in this position. A lid, for example consisting of the same grid as the bottom (30) is deposited, then blocks on the box.

  The cylinders of the bottom of the box are inflated so as to tighten the packing against the cover and to allow the impactor to be placed in the cells.

  The box is equipped with handling rings in its upper part. Advantageously, the machine comprises a stationary or possibly movable frame and a movable frame allowing translation movement relative to the frame and a rotational movement. The mobile frame rolls for example on rails or is placed on vertical rods. The chassis is for example set in motion by a gear motor equipped with unexcentric and a horizontal rod. The mobile frame can be equipped with two gantries with an axis terminated by a rapid locking system in which the axis of the box is deposited. At the end of the axis, a geared motor allows for example the rotation of the box.

  The speed of rotation will be adapted so that the balls have time to migrate from one side to the other packing, migrating into the cells and cleaning them. The lower part of the impaction machine is advantageously equipped with a large hopper for collecting and directing the tartar or other deposit removed to a conveyor belt or other evacuation system. This treadmill for example transports tartar to a storage system, for example in the form of large bags.

  The machine as a whole will advantageously be of the self-supporting type and will preferably be of a template allowing normal transport by truck.

  The translation and rotation movements will advantageously be independent of one another. The system can operate only in translation, only in rotation or in combined effect. A frequency converter can be installed to change the speed of translation and rotation.

  The machine is advantageously equipped with walkways, stairs, guardrail and protection allowing access to all components safely. 30

Claims (21)

claims   1. A method of cleaning an exchange body or packing (E) having a series of cells forming channels (El) to ensure a gas-liquid medium exchange, in particular air-water, said channels (El) each extending at least between an inlet opening and an outlet opening and having a passage section defined by at least a minimum diameter or width, said exchange or lining body (E) being at least partially covered a deposit comprising at least one element selected from sludge, scale, calcium sulphate, organic materials, algae, and combinations thereof, wherein the exchange or packing body (E) is subjected to drying to obtain a sufficiently dry deposit or in which the exchange or packing body (E) is allowed to dry; in which are introduced into the cells (E 1) of the exchange body or packing solid elements (60) whose size is chosen to allow their passage through the channels (El) of the exchange body or packing (E ) between their inlet and outlet openings, said solid elements (60) having sufficient hardness to take off or break the dried deposit substantially without said solid elements (60) being broken, in which the body of exchange or packing (E) so that the solid elements (60) move at least by gravity in the channels (E 1) of the exchange or packing body (E), to treat them by giving shocks on the inner walls of the channels (E1) to at least partially loosen one or more deposits, wherein during and / or after a channel treatment (E 1) by said solid elements (60) are recovered solid elements (60) and pieces of loose deposits o broken off by openings of the exchange or packing body (E), and in which at least partially the solid elements (60) are separated from the pieces of loose or broken deposits. 1630   2. Method according to claim 1, characterized in that moves the exchange body (E) so that it undergoes at least one rotational movement (R) and at least one translational movement (X), advantageously translational movements having at least one opposite component.   Method according to Claim 1 or 2, characterized in that the exchange or packing body (E) is rotated (R) at a selected speed to ensure that at least a portion of the solid elements ( 60) are able to flow in channels (E 1) at least substantially between their inlet opening and their outlet opening, or vice versa.   4. Method according to claim 3, characterized in that one rotates (R) the exchange body or packing (E) at a selected speed to ensure that at least 75% by weight, preferably at least 90% by weight of the solid elements (60), preferably substantially all the solid elements (60) are able to flow in channels (El) at least substantially between their inlet opening and their outlet opening, or vice versa .   5. Method according to any one of claims 1 to 4, characterized in that the exchange body or packing (E) is placed in a system (5) maintaining the exchange body or packing (E) in position relative to the system (5), said system (5) being moved so that the solid elements (60) move at least by gravity in the channels (E1) of the exchange or packing body (E) , to treat them by giving shocks on the inner walls of the channels (E1) to at least take off one or more deposits.   6. Method according to claim 5, characterized in that the system (5) is adapted to close at least partially inlet and outlet openings of the exchange body or packing (E).   7. A method according to claim 5, characterized in that the system (5) is adapted to maintain the solid elements (60) in the exchange or stripping body (E) at least during movement thereof, while ensuring at least partial evacuation of deposits detached or broken from the exchange or packing body (E).   8. Method according to the preceding claim, characterized in that the system (5) comprises one or more lattices (14) whose openings are calibrated relative to the solid elements to maintain them inside the exchange body or lining (E).   9. Process according to any one of the preceding claims, characterized in that the solid elements (60) have a substantially spherical or ovoid shape.   10. Process according to any one of the preceding claims, characterized in that substantially uniformly distributes solid elements (60) in all the channels (El) of the exchange body or packing (E).   11. A method according to any one of the preceding claims, characterized in that distributes solid elements (60) in the channels (E 1) of the exchange body or packing (E) so that substantially each channel (E 1) of the exchange or packing body (E) is filled preferably between 1% in height and 4% in height with solid elements (60).   Method according to one of the preceding claims, characterized in that solid elements (60) having a density of at least 5, preferably at least 8 or more are used.   13. Process according to any one of the preceding claims, characterized in that at least one parameter relating to the exchange or packing body (E) is measured, in particular a parameter related to the weight of the exchange or packing body. packing (E) or the weight of material removed from the packing body (E) to determine a cleaning level, particularly if the cleaning operation is to be continued.   14. Device for implementing a method according to any one of the preceding claims, said device comprising at least: a support (17); a rigid system (5) comprising means for holding in position at least one exchange or packing body (E) with respect to the rigid system (5), said rigid system (5) being mounted at least in rotation (R ) with respect to the support (17); means (6, 10, 11) for connecting the rigid system to at least one drive device (12, 13) adapted for rotating (R) the rigid system (5) relative to the support (17) and at least means (14, 65) adapted to maintain solid elements (60) in the exchange or packing body (E) during the rotation of the rigid system (5), and adapted to ensure at least partial evacuation of deposits detached or broken from the exchange or packing body (E).   15. Device according to claim 14, characterized in that the support (17) and / or the rigid system (5) are adapted to undergo translational movements (X) having at least one opposite component, and in that the support (17) and / or the rigid system (5) has at least one connection adapted to be attached to means (18) generating at least translation movements (X) in opposite directions.   16. Apparatus according to claim 14 or 15, characterized in that it comprises a collector (2) adapted to receive the detached or broken deposits exiting the exchange or packing body (E).   17. Apparatus according to any one of claims 14 to 16, characterized in that it comprises at least one means for guiding a stream of gas to the channels (E 1) of the exchange body or packing (E) for ensure drying of it.   18. Apparatus according to any one of claims 14 to 17, characterized in that the rigid system (5) comprises a bottom advantageously perforated (14,29), an upper wall (65) advantageously perforated, and at least four side walls (21bis, 23bis, 24bis) perforated or not so as to define a chamber or a receiving chamber, the upper wall (65) being mounted movable relative to the side walls (21a, 23a, 24a) between a closed position for which the upper wall (65) is adapted to maintain an exchange or packing body (E) in the receiving chamber or chamber and an open position adapted to allow the introduction of an exchange or packing body (E ) 1 o in the enclosure or reception room.   19. Apparatus according to claim 18, characterized in that at least one side wall (61 bis) is movably mounted between a position at least partially spaced from a side wall opposite said side wall. 15   20. Apparatus according to claim 19, characterized in that the rigid system (5) comprises two opposite side walls pivotally mounted relative to a frame adapted to support the bottom or relative to the bottom (14,29), between at least a first position to define the chamber or the receiving chamber and a position 20 spaced from this first position.   21. Device according to any one of claims 14 to 20, characterized in that it comprises a frame (1) carrying a hopper (2) and in that the support (17) of the rigid system (5) is mounted movably. relative to the frame (1), a mechanism (18) being adapted to ensure at least one translational movement (X) of the support (17) relative to the frame (1).