Automatic air filter separator balloon

Abstract

Automatic air-filter separator balloon. Liquid-air or LA separator balloon (3), characterized in that it comprises: - a main vacuum chamber (13) having an inlet (4) for the inlet of the LA mixture into the chamber, an outlet (6) for the liquid L, disposed at a level lower than the LA inlet, and a vacuum tube (5) connecting the main chamber to a main vacuum pump (14), disposed at a level higher than the LA inlet, - an auxiliary chamber (8), disposed lower than the main chamber, into which the liquid L enters exiting through the outlet for the liquid L of the main chamber and having an outlet (9) for the discharge of the liquid L; and - means (15, 16, 17) for communication to connect the auxiliary chamber alternately with a vacuum pump, which may in particular be the main pump, and with the ambient atmosphere or means for creating an overpressure. Figure for the abstract: Fig. 3

Description

Title of the invention: Automatic air-filter separator balloon

[0001] The present invention relates to a solid liquid filtration installation (SL) comprising suction means, intended for suctioning the liquid, and a liquid air separation installation (LA), intended for separating the suctioned liquid (L) and air (A) from each other and comprising a separator balloon LA, as well as to a liquid air separation installation (LA) of this kind.

[0002] Conventionally, a filtration system SL, for example as described in FR 2544219 A1, comprises a filter onto which a suspension consisting of a solid-liquid mixture, or SL, is deposited, and beneath which is placed a vacuum box designed to create a vacuum to draw the liquid from the suspension through the filter, leaving only the solid in the form of a cake on the opposite side of the filter. The mixture of liquid L and air A is then sent to a separation system comprising a separation vessel, in which the filtrate, or liquid L, is separated from the air A.

[0003] An installation of this kind from the prior art is shown in [Fig.2].

[0004] When it is desired to create a strong depression, for example on the order of -200 At -300, or even -500 millibars, to achieve filtration of increasingly smaller particles, the liquid-air separation (LA) system requires pipes extending over a considerable length below the separator vessel, classically referred to as the barometric head, which varies exponentially with the level of vacuum applied. For example, at a vacuum of -100 millibars, this barometric head already reaches approximately seven meters, as shown in [Fig. 2].

[0005] Such a high barometric pressure results in particularly high installation costs, especially in terms of building and civil engineering. Furthermore, the applied pressure drop fluctuates significantly during the filtration system's operation.

[0006] The present invention aims to overcome the drawbacks of the prior art by providing a filtrate, or liquid, and air (LA) separation system, comprising a separator vessel, which can be installed at a reduced height for a given vacuum value, in particular at a height of less than five meters, especially less than three meters for a vacuum greater than 200 millibars in absolute value, for example, for a vacuum of less than 500 millibars, or which allows, for the same installation height, the implementation of a higher vacuum. It also allows for a more stable and constant vacuum throughout the production process.

[0007] The present invention also aims to overcome the drawbacks of the prior art by providing an installation for separating the filtrate, or liquid, and air (LA), comprising a separator vessel, which can be monitored during the industrial separation process, in particular by comprising means for monitoring and collecting parameters relating to the process, such as the flow rate of separated liquid or the level of vacuum applied by the pump, and optionally control means for controlling the means acting on these parameters, in particular automatically.

[0008] The present invention also relates to a liquid-solid filtration installation, or LS, comprising such a liquid-air separation installation, or LA, as well as to a separator vessel of an LA separation installation.

[0009] In particular, the present invention relates to a liquid-solid filtration installation, or LS, comprising such a liquid-air separation installation, or LA, and means for monitoring and collecting parameters relating to the separation process, such as the flow rate of separated liquid or the level of vacuum applied by the pump, and possibly control means for controlling the means acting on these parameters, in particular automatically.

[0010] According to the invention, a separator flask LA is characterized in that it comprises:

[0011] - a main vacuum chamber having an inlet LA for the inlet of the mixture LA within the enclosure, an outlet for liquid L, located at a lower level than the inlet LA, and a vacuum line connecting the main enclosure to a main vacuum pump, located at a higher level than the inlet LA,

[0012] - an auxiliary enclosure, arranged lower than the main enclosure, in which liquid L enters by gravity, exiting through the liquid L outlet of the main chamber and having a liquid L discharge outlet; and

[0013] - means of communication for connecting the auxiliary enclosure alternatively with a vacuum pump, which may in particular be the main pump, and with the ambient atmosphere or means of creating overpressure.

[0014] According to a favorable embodiment, the communication means comprise a drawer distributor which, in a first configuration, connects an inlet tube of the auxiliary enclosure with an outlet tube of the main enclosure, the main enclosure remaining in communication with the vacuum pump via the vacuum tube, and, in a second configuration, connects the inlet tube of the auxiliary enclosure with the ambient atmosphere and closes the outlet tube of the main enclosure.

[0015] According to a favorable embodiment, the outlet for the liquid L of the main enclosure includes a non-return valve opening into the auxiliary enclosure.

[0016] According to a favorable embodiment, the liquid outlet L of the auxiliary enclosure includes a non-return valve.

[0017] According to another embodiment, the communication means comprise a three-way valve, in particular a three-way L-shaped ball valve, a first port being connected to the atmosphere or to a pressure boosting system, the second port being connected to an inlet pipe of the auxiliary chamber and the third port to a pipe in communication with a vacuum pump, in particular the main vacuum pump, the three-way valve passing alternately between two positions, a first position, in which the second and third ports are connected together while the first port is closed, and a second position, in which the first and second ports are connected together while the third port is closed, so that, in the first position the auxiliary chamber is subjected to the vacuum created by the vacuum pump and in the second position,It is subjected to atmospheric pressure or to overpressure created by a pressure-boosting system.

[0018] Preferably, particularly in combination with the embodiment comprising a three-way valve, a first valve, particularly with a pneumatic actuator, is disposed between the outlet for the liquid L of the main enclosure and a liquid inlet pipe L in the auxiliary enclosure and a second valve, particularly with a pneumatic actuator, is disposed at the outlet of the auxiliary enclosure, the piloting of the valves, particularly the pneumatic actuators, being synchronized so that in the first position of the three-way valve, the first valve is open and the second valve is closed, and in the second position of the three-way valve, the first valve is closed and the second valve is open.

[0019] According to a particularly favorable improvement, two first and second auxiliary enclosures are provided, the main enclosure having two outlets for the liquid, one through which the liquid enters the first auxiliary enclosure and the other through which the liquid enters the second auxiliary enclosure, the two auxiliary enclosures having respective first and second discharge outlets, the communication means, in a first position, connecting one of the auxiliary enclosures with a vacuum pump, which may in particular be the main vacuum pump, and the other auxiliary enclosure with the ambient atmosphere or means for creating an overpressure, and in a second position, connecting the other of the auxiliary enclosures with a vacuum pump, which may in particular be the main vacuum pump, and said one auxiliary enclosure with the ambient atmosphere or means for creating an overpressure.

[0020] By alternately moving from one position to the other, the flow rate of the separator balloon can be increased, with one chamber filling up while the other empties.

[0021] According to a preferred embodiment, the communication means comprise a drawer distributor which, in a first configuration, connects a respective inlet tube of each auxiliary enclosure with an outlet tube of the main enclosure, the main enclosure remaining in communication with the vacuum pump via the vacuum tube, and, in a second configuration, connects the respective inlet tube of each auxiliary enclosure with the ambient atmosphere and closes the outlet tube of the main enclosure.

[0022] Preferably, the volume of the auxiliary enclosure or of each auxiliary enclosure is smaller than the volume of the main enclosure, in particular at least twice as small, for example 2 to 5 times smaller, which makes it even better to stabilize the vacuum depression in the main enclosure throughout the production.

[0023] The present invention also relates to a LA separation installation comprising a separation tank according to the invention and at least one vacuum pump arranged to create a vacuum in the main enclosure of the separation tank.

[0024] In particular, the LA separation installation creates a depression of at least 200 millibars, in particular between 200 and 500 millibars and has a height of less than 5 meters, in particular less than three meters.

[0025] The present invention also relates to a liquid-solid filtration installation LS comprising a filter LS, at least one vacuum pump creating a vacuum to draw the liquid L through the filter while the solid remains on top of the filter in the form of a cake, the aspirated liquid-air mixture passing into a separator vessel according to the invention, the liquid exiting the auxiliary chamber or each auxiliary chamber being received in a tank from which it is drawn for further use, the vacuum created by the vacuum pump being at least 200 millibars, in particular between 200 and 500 millibars, and the difference between the height of the drawing point in the tank for further use installation and the height of the filter is less than 9 meters, in particular less than 5 meters, even more preferably less than 4 meters.

[0026] The present invention also relates to a method of deaerating a filtrate from a solid-liquid filter by vacuum, in which, successively in time,

[0027] the filtrate is deaerated by vacuum in a first chamber,

[0028] the deaerated filtrate is sent by gravity into a second chamber under vacuum;

[0029] the second chamber is brought to atmospheric pressure; and

[0030] the deaerated filtrate is evacuated from the second chamber.

[0031] Furthermore, in an installation according to the invention, in particular an installation implementing the process of the invention, it is possible to follow the process of filtration and separation, in particular by providing an automated control and / or monitoring system, as well as data collection relating to the industrial process. In particular, in the installation according to the invention, it is possible to increase or decrease the vacuum created by the pump and / or the valve timing depending on the observed flow rate.

[0032] By way of example only, embodiments of the invention are now described with reference to the drawings, in which:

[0033] Fig. 1 is a plan view of a liquid-solid filtration installation LS according to an embodiment of the invention, the installation shown comprising an automatic separator tank of the invention, the maximum altimetry levels being indicated;

[0034] Fig. 2 is a view of a prior art LS filtration installation; the installation shown comprising an automatic separator balloon of the invention, the maximum altimetry levels being indicated, the installation shown comprising a standard separator balloon of the prior art, the minimum barometric height and the altimetry levels being indicated;

[0035] Fig. 3 is a plan and cross-sectional view of a first embodiment of a separator balloon according to the invention which can be used in the installation of Fig. 1, the separator balloon being said to be "simple";

[0036] Fig. 4 is a plan and section view of a second embodiment of a separator tank that can be used in the installation of Fig. 1, the separator tank being said to be "double";

[0037] Figure 5 is a plan and cross-sectional view of yet another embodiment of a separator tank according to the invention that can be used in the installation of Figure 1. This embodiment includes automation for a simple separator tank, the automation allowing control, monitoring, and data collection for the proper functioning of the installation; and

[0038] Fig. 6 is a summary table of the operating diagram of the separator tank of Fig. 5, the automatic opening and closing sequences of the valves being ensured by an automaton.

[0039] In [Fig. 1], a filtration installation according to the invention is shown. The installation includes a filter 1 which can for example be as described in FR2544219A1 in the form of an endless belt on which the liquid-solid suspension to be filtered is deposited, a vacuum being formed, using a vacuum pump 14, under the upper section of the endless belt to draw the liquid through the mesh and send it in the form of a liquid-air mixture (LA) into a collector 2 connected to a separator 3.

[0040] In the separator 3, in which the vacuum created by the vacuum pump 14 exists, a separation of air A and liquid L is carried out. Liquid L is then discharged into a lower reservoir 11, and a sampling system 12 then collects the deaerated liquid for further use and / or treatment.

[0041] The separator 3 is shown in a first embodiment in [Fig. 3]. The 3 has an inlet port 4 to which the manifold 2 is connected for introducing the air-filtrate mixture, or liquid, to be separated into the chamber 13 of the separator 3. The 3 also has an outlet port 5 through which the air separated from the filtrate is drawn by the vacuum pump 14. This port 5 is located at a height greater than the inlet port 4, and in particular, the outlet port 5 for the separated air is located in the upper part of the chamber 13 of the 3.

[0042] In the lower part of the enclosure 3 of the balloon 3 there is an outlet tube 6 for the separated liquid filtrate, i.e. deaerated, the outlet tube 6 being closed by a non-return valve 7.

[0043] The outlet pipe 6 opens into an auxiliary chamber 8, where the filtrate or deaerated liquid is received, in the manner of an airlock, before being discharged from the auxiliary chamber 8 through a discharge pipe 9 closed by a non-return valve 10. The filtrate or deaerated liquid exiting the discharge pipe 9 then falls into the lower reservoir 11, located below the separator flask 3, and is subsequently collected for further processing by a sampling system 12.

[0044] A depression (called a vacuum) is created in the chamber 13 of the separator balloon 3 by the vacuum pump 14.

[0045] The separator balloon 3 further comprises a drawer distributor 15 having four drawers respectively T1-T2-T3-T4.

[0046] Drawer T1 is connected to a tube 17 in communication with the interior of enclosure 13, at its upper part. Drawer T2 is connected by a communication tube 16 to the auxiliary enclosure 8. Drawer T3 is open to the atmosphere, or possibly to a system for creating overpressure. Drawer T4 is closed.

[0047] A control system 100 allows the movement of the drawers T1 to T4 to be controlled. The control system 100 alternately switches the distributor 15 between two configurations, namely a first configuration, in which the two drawers T1 and T2 communicate with each other, while the drawer T3 is in communication only with the atmosphere or the overpressure system, and a second configuration, in which the two drawers T2 and T3 communicate with each other and the drawer T1 is blocked.

[0048] In the first configuration, the same vacuum exists in the auxiliary chamber 8 as that created in the main chamber 13 by the pump 14. In this In this configuration, the filtrate or deaerated liquid falls by gravity into the auxiliary chamber 8 through the outlet tube 6, with a vacuum (the depression created by the pump 4) existing in both chambers 13 and 8. Given this depression existing in the auxiliary chamber 8, the filtrate or deaerated liquid cannot be evacuated through the discharge tube 9.

[0049] In the second configuration, the auxiliary chamber 8 is brought to atmospheric pressure or to a higher pressure created by a pressure-boosting system 20, due to the correspondence between the two drawers T2 and T3. In this configuration, the deaerated filtrate can no longer exit the main chamber 13 through the outlet pipe 6. Instead, the deaerated filtrate exits the auxiliary chamber 8 by gravity through the discharge pipe 9, towards the lower reservoir 11.

[0050] The control system 100 switches the spool valve from one configuration to another, depending on the filter flow rate, according to a cycle that depends on the filter, the type of filtered suspension, the created negative pressure, and the various geometric parameters of the installation. The cycle stages can be triggered by level detectors located in the enclosures.

[0051] As can be seen, unlike prior art installations, for example that shown in [Fig.2], it is no longer necessary to have a significant barometric height between the filter and the sampling device 12.

[0052] Thus, for example, the difference between the height of the sampling point in the tank 11 by the system 12 and the height of the filter 1 is 3.8 meters, and this regardless of the vacuum applied by the vacuum pump 14.

[0053] Conversely, in the prior art device of [Fig.2], the difference between the height of the sampling point by the system 12 and the height of the filter 1 is 9.8 meters, and this for a depression not exceeding 200 millibars.

[0054] According to an improvement shown in [Fig.4], instead of a single auxiliary enclosure 8, two auxiliary enclosures 8-1 and 8-2 are provided, which makes it possible to increase the filling rate of the reservoir 11.

[0055] In this embodiment of [Fig.4], the separator balloon 3' comprises the same drawer distributor 15 as in [Fig.3], having four drawers respectively T1-T2-T3-T4.

[0056] The T1 drawer is also connected to the same tube 17 in communication with the interior of the chamber 13 of the balloon 3', at its upper part. The T2 drawer is connected by a communication tube 16-1 to the auxiliary chamber 8-1. The T3 drawer is open to the atmosphere, or even to a system for creating overpressure. The T4 drawer is not obstructed, and on the contrary, is connected by a communication tube 16-2 to the auxiliary chamber 8-2.

[0057] The control system 100 alternately switches the distributor 15 between two configurations, namely a first configuration, in which the two drawers T1 and T2 communicate together, while the two drawers T3 and T4 communicate together, and a second configuration, in which the two drawers T1 and T4 communicate together while the two drawers T2 and T3 communicate together.

[0058] In the first configuration, the auxiliary chamber 8-1 has the same negative pressure as that created in the main chamber 13 by the pump 14. In this configuration, the filtrate or deaerated liquid falls by gravity into the auxiliary chamber 8-1 through an outlet pipe 6-1, with a vacuum (the negative pressure created by the pump 4) existing in both chambers 13 and 8-1. Given this negative pressure in the auxiliary chamber 8-1, the filtrate or deaerated liquid cannot be discharged through the outlet pipe 9-1.

[0059] In the first configuration, the auxiliary chamber 8-2 is brought to atmospheric pressure or to a higher pressure created by a pressure-boosting system 20, due to the correspondence between the two drawers T3 and T4. In this first configuration, the deaerated filtrate can no longer exit the main chamber 13 through the outlet pipe 6-2. Instead, the deaerated filtrate exits the auxiliary chamber 8-2 by gravity through the discharge pipe 9-2, towards the lower reservoir 11.

[0060] In the second configuration, the auxiliary chamber 8-2 has the same negative pressure as that created in the main chamber 13 by the pump 14. In this configuration, the filtrate or deaerated liquid falls by gravity into the auxiliary chamber 8-2 through the outlet pipe 6-2, with a vacuum (the negative pressure created by the pump 4) existing in both chambers 13 and 8-2. Given this negative pressure in the auxiliary chamber 8-2, the filtrate or deaerated liquid cannot be discharged through the outlet pipe 9-2.

[0061] In the second configuration, the auxiliary chamber 8-1 is brought to atmospheric pressure or to a higher pressure created by a pressure-boosting system 20, due to the correspondence between the two drawers T2 and T3. In this configuration, the deaerated filtrate can no longer exit the main chamber 13 through the outlet pipe 6-1. Instead, the deaerated filtrate exits the auxiliary chamber 8-1 by gravity through the discharge pipe 9-1, towards the lower reservoir 11.

[0062] This arrangement makes it possible to accelerate the pace, one of the auxiliary enclosures filling up while the other is being evacuated and vice versa.

[0063] A programmable logic controller (PLC) system 200 is connected to the control device 100, the vacuum pump 14, and the check valves 7 and 10. The PLC system 200 receives information from the various elements to which it is connected and allows for monitoring and collection of data relating to process parameters, thus enabling optimal process regulation. in particular by playing on the control device 100 and the pump 14 according to the flow observed at the level of the check valves 7 and 10.

[0064] Figure 5 shows another possible embodiment of the separator tank. Instead of the spool valve 15, a 3-way valve 15' with an L-shaped passage and a pneumatic actuator is provided, and the check valves are replaced by simple ball valves, each also having its own pneumatic actuator. The pneumatic actuators are controlled by the control system 100 in two stages, with the 3-way valve alternately establishing communication in two configurations.

[0065] The first configuration consists of putting under atmosphere, or MSA, and the second configuration consists of putting under vacuum, or MSEV, the control of the solenoid valves allowing the establishment of communications alternately as follows.

[0066] In the first configuration, the 3-way valve 15' is in the MSEV position, valve C is open and valve D is closed, evacuating both the main chamber 13' and the auxiliary chamber 8', thus establishing pressure equilibrium. By gravity, the deaerated filtrate flows from the main chamber 13' to the auxiliary chamber 8' via valve C.

[0067] In the second configuration, the 3-way valve 15' is in the MSA position, valve C is closed, and valve D is open. The main chamber 13' remains under vacuum, but the auxiliary chamber 8' is now open to the atmosphere at atmospheric pressure. By gravity, the deaerated filtrate then flows from the auxiliary chamber to the outside through the second valve D.

Claims

Demands

1. Liquid-air separator (3; 3') or LA, characterized in that it comprises: - a main vacuum chamber (13; 13') having an inlet (4) for the inlet of the LA mixture into the chamber, an outlet (6) for the liquid L, disposed at a level lower than the LA inlet, and a vacuum tube (5) connecting the main chamber to a main vacuum pump (14), disposed at a level higher than the LA inlet, - an auxiliary chamber (8; 8-1, 8-2; 8'), disposed lower than the main chamber, into which the liquid L exiting through the outlet for the liquid L of the main chamber enters by gravity and comprising an outlet (9; 9-1, 9-2) for the discharge of the liquid L; and - means (15, 16, 17; 15, 16-1, 16-2; 15') of communication to connect the auxiliary enclosure alternately with a vacuum pump, which may in particular be the main pump, and with the ambient atmosphere or means of creating an overpressure.

2. Separator balloon according to claim 1, characterized in that the communication means comprise a drawer distributor (15) which, in a first configuration, connects an inlet tube (16) of the auxiliary chamber with an outlet tube (17) of the main chamber, the main chamber (13) remaining in communication with the vacuum pump via the vacuum tube (5), and, in a second configuration, connects the inlet tube (16) of the auxiliary chamber with the ambient atmosphere and closes the outlet tube (17) of the main chamber.

3. Separator balloon according to claim 1 or 2, characterized in that the outlet (6) for the liquid L of the main chamber comprises a non-return valve (7).

4. Separator balloon according to any one of claims 1 to 3, characterized in that the outlet (9) for evacuating the liquid L from the auxiliary chamber has a non-return valve.

5. A separator balloon according to any one of claims 1, 3 or 4, characterized in that the communication means comprise a three-way valve (15'), a first way being connected to the atmosphere or to a pressure-boosting system, the second way being connected

6.

7. to an inlet pipe of the auxiliary enclosure and the third way to a pipe in communication with a vacuum pump, in particular the main vacuum pump, the three-way valve passing alternately between two positions, a first position, in which the second and third ways are connected together while the first way is closed, and a second position, in which the first and second ways are connected together while the third way is closed, so that, in the first position the auxiliary enclosure is subjected to the vacuum created by the vacuum pump and in the second position, it is subjected to atmospheric pressure or to an overpressure created by an overpressure system. Separator balloon according to claim 5, characterized in that a first valve (C), in particular with a pneumatic actuator, is disposed between the outlet for liquid L of the main chamber and a liquid inlet pipe L in the auxiliary chamber and a second valve (D), in particular with a pneumatic actuator, is disposed at the outlet of the auxiliary chamber, the piloting of the valves, in particular of the pneumatic actuators, being synchronized so that in the first position of the three-way valve, the first valve is open and the second valve is closed, and in the second position of the three-way valve, the first valve is closed and the second valve is open. A separator vessel according to any one of the preceding claims, characterized in that it comprises two auxiliary first and second chambers (8-1, 8-2), the main chamber (13) having two outlets (6-1, 6-2) for the liquid, one through which the liquid enters the first auxiliary chamber and the other through which the liquid enters the second auxiliary chamber, the two auxiliary chambers having respective first and second discharge outlets (9-1, 9-2), the communication means, in a first position, connecting one of the auxiliary chambers to a vacuum pump, which may in particular be the main vacuum pump, and the other auxiliary chamber to the ambient atmosphere or means for creating overpressure, and in a second position, connecting the other of the auxiliary chambers to a vacuum pump, which may in particular be the pump to main vacuum, and said an auxiliary enclosure with the ambient atmosphere or means of creating an overpressure.

8. Separator balloon according to claim 7, characterized in that the communication means comprise a drawer distributor (15) which, in a first configuration, connects a respective inlet tube (16-1, 16-2) of each auxiliary chamber with an outlet tube (17) of the main chamber, the main chamber remaining in communication with the vacuum pump via the vacuum tube, and, in a second configuration, connects the respective inlet tube of each auxiliary chamber with the ambient atmosphere and closes the outlet tube of the main chamber.

9. Separator balloon according to any one of the preceding claims, characterized in that the volume of the auxiliary chamber or of each auxiliary chamber is smaller than the volume of the main chamber, in particular at least twice as small, for example 2 to 5 times smaller.

10. LA separation installation comprising a separation tank according to one of the preceding claims and at least one vacuum pump (14) arranged to create a vacuum in the main enclosure of the separation tank.

11. Installation according to claim 10, characterized in that the vacuum pump creates a depression of at least 200 millibars, in particular between 200 and 500 millibars and has a height of less than 5 meters, in particular less than three meters.

12. Liquid-solid filtration installation LS comprising a filter LS (1), at least one vacuum pump creating a vacuum to draw the liquid L through the filter (1) while the solid remains on top of the filter in the form of a cake, the aspirated liquid-air mixture passing into a flask 3; 3') separator according to any one of claims 1 to 9, the liquid exiting the auxiliary enclosure or each auxiliary enclosure being received into a reservoir from which it is drawn for further use, the vacuum created by the vacuum pump being at least 200 millibars, in particular between 200 and 500 millibars, and the difference between the height of the drawing point in the reservoir for further use and the height of the filter is less than 9 meters, in particular less than 5 meters, even more preferably less than 4 meters.

13. A method for deaerating a filtrate from a solid-liquid filter by vacuum, wherein, successively in time, the filtrate is deaerated by vacuum in a first chamber (13; 13'), the deaerated filtrate is sent by gravity into a second chamber (8; 8-1, 8-2) under vacuum; the second chamber (8; 8-1, 8-2) is brought to atmospheric pressure; and the deaerated filtrate is evacuated from the second chamber (8; 8-1, 8-2).

14. Installation according to any one of claims 10 to 12, characterized in that it comprises an automated system (200) for command and / or control or monitoring, as well as for collecting data relating to the industrial process.

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