37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Centrifugal machines; compressors [machines]; electric
compressors; axial flow compressors; thermostatic control
valves for machine use; pumps [machines]. Cooling installations and machines; cooling installations
for liquids; cooling evaporators; fiber reinforced plastics
cooling towers; heat exchangers, not parts of machines;
water filtering apparatus; refrigerating apparatus and
machines; coils [parts of distilling, heating or cooling
installations]. Installation, maintenance, and repair of temperature control
devices. Water treatment.
A method is disclosed of decontamination for decontaminating plastics in solid particulate form comprising the steps of: loading the material into a tank; introducing a fluid into the tank so that the fluid is in contact with the material; hitting the material in said tank and said fluid in contact with said material with ultrasonic waves. A decontamination apparatus that actuates the decontaminating method and a plant that includes the decontamination apparatus are also disclosed.
A dehumidification apparatus is disclosed comprising at least one container (3) for containing incoherent plastics, at least one conduit with at least one opening (7) for introducing a process gas into the container, and a heating device with at least one electrode (10) connected to a radiofrequency generator (9), the electrode being arranged at a distance from a conduit portion (8) and being surrounded by the incoherent plastics.
F26B 3/06 - Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
F26B 3/34 - Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried by using electrical effects
F26B 3/347 - Electromagnetic heating, e.g. induction heating or heating using microwave energy
F26B 17/14 - Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity the materials moving through a counter-current of gas
B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Silos of metal; Vats of metal; Vats of metal. Polymer treatment machines; Plastic powder treatment machines; Food powder treatment machines; Machines for plastics working; Food processing machines; Industrial robots; Industrial mixing machines; Pumping stations, For industrial use; Drainage machines; Sifting machines; Spin dryers [not heated]; pelletizers, For industrial use; Industrial mills; Pulping machines; Extrusion machines for plastic; Injection moulding machines; Plastics injection forming machines; Plastics moulding machines; Industrial recycling machines; Industrial moving and handling machines; Industrial installations and apparatus for use in handling materials; Material storage installations; Machines for recycled material treatment; Installations for the bulk handling of granular materials; Dust separators; Centrifugal machines; Compressors [machines]; Electric compressors; Axial flow compressors; thermostatic valves, for use in relation to the following goods: machines. Scientific research and laboratory apparatus, educational apparatus and simulators; Testing and quality control devices; Measuring apparatus; Heat regulating apparatus; Measuring devices; Electronic measurement sensors; Olfactory sensors; Hygrometers; Industrial automation software; Industrial software; Process controlling software; Checking (supervision) apparatus and instruments; Checking (supervision) apparatus for industrial processes and Industrial process control units; Computer software for monitoring energy consumption; Energy management software. Industrial dehumidifying installations; Industrial drying installations; Industrial refrigerating apparatus and installations; Apparatus for cooling and heating for use in relation to the following goods: Industrial plants; Industrial drying machine; Polymerisation installations; Cooling evaporators; Heat exchangers (not parts of machines); Water filtering apparatus; Coils [parts of distilling, heating or cooling installations]. Installation, maintenance and repair of the following goods: industrial plants; Installation of plant, machinery maintenance services, Reconditioning of machines, Repair of machines; Installation, maintenance and repair of temperature control apparatus. Water treating; Water purification.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Silos of metal; Vats of metal; Vats of metal. Polymer treatment machines; Plastic powder treatment machines; Food powder treatment machines; Machines for plastics working; Food processing machines; Industrial robots; Industrial mixing machines; Pumping stations, For industrial use; Drainage machines; Sifting machines; Spin dryers [not heated]; pelletizers, For industrial use; Industrial mills; Pulping machines; Extrusion machines for plastic; Injection moulding machines; Plastics injection forming machines; Plastics moulding machines; Industrial recycling machines; Industrial moving and handling machines; Industrial installations and apparatus for use in handling materials; Industrial installations for conducting storage operations; Machines for recycled material treatment; Installations for the bulk handling of granular materials; Dust separators; Centrifugal machines; Compressors [machines]; Electric compressors; Axial flow compressors; thermostatic valves, for use in relation to the following goods: machines. Scientific research and laboratory apparatus, educational apparatus and simulators; Testing and quality control devices; Measuring apparatus; Heat regulating apparatus; Measuring devices; Electronic measurement sensors; Olfactory sensors; Hygrometers; Industrial automation software; Industrial software; Process controlling software; Checking (supervision) apparatus and instruments; Checking (supervision) apparatus for industrial processes and Industrial process control units; Computer software for monitoring energy consumption; Energy management software. Industrial dehumidifying installations; Industrial drying installations; Industrial refrigerating apparatus and installations; Apparatus for cooling and heating for use in relation to the following goods: Industrial plants; Industrial drying machine; Polymerisation installations; Cooling evaporators; Heat exchangers (not parts of machines); Water filtering apparatus; Coils [parts of distilling, heating or cooling installations]. Installation, maintenance and repair of the following goods: industrial plants; Installation of plant, machinery maintenance services, Reconditioning of machines, Repair of machines; Installation, maintenance and repair of temperature control apparatus. Water treating; Water purification.
37 - Construction and mining; installation and repair services
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Centrifugal machines; Compressors [machines]; Electric compressors; Axial flow compressors; thermostatic valves, for use in relation to the following goods: machines; Pumps [machines]. colling installations and machines; Cooling installations for fluids; Cooling evaporators; Cooling towers, Of fibre-reinforced plastic; Heat exchangers (not parts of machines); Water filtering apparatus; Refrigeration appliances and machines; Coils [parts of distilling, heating or cooling installations]. Installation, maintenance and repair of temperature control apparatus. Water treating.
A deodorization method and apparatus are disclosed to eliminate, reduce or correct the odour of incoherent plastics, i.e. in the form of granules and/or microgranules and/or powder and/or flakes or the like, with a container of the incoherent plastics, an actuator for generating a process gas flow from a gas inlet to a gas outlet of said container, an olfactory sensor arranged to detect odorous emissions in the process gas exiting from said container, a controller configured to control at least one parameter of the process gas on the basis of an odour intensity measured by said olfactory sensor, with the aim of eliminating the substances that cause undesired odours from the incoherent plastics that is usable in a transformation process to make an end product.
A method and an apparatus are disclosed for analyzing an absorption filtering medium that filters volatile organic substances in a process gas in a dehumidification plant for dehumidifying polymer granules, with a fan that generates a flow of gas through the filtering medium, an analyzer for analyzing the concentration of total organic carbon, a sensor for detecting pressure downstream of the filtering medium, in which the state of saturation and/or the absorbent capacity and/or the deterioration over time of the filtering medium is determined by a comparison of the measured concentrations of the total organic carbon in the flow of gas upstream and downstream of the filtering medium.
B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
F26B 9/06 - Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
9.
APPARATUS AND METHOD FOR TREATING INCOHERENT MATERIAL
An analysis method and apparatus for treating polymer granules at least part of which comes from post-consumer recycling, in which a flow of a process gas is purified from contaminating vapours by traversing, in sequence, first a dust collector filter that retains the solid particles contained in the gas, then a first side of a gas/gas heat exchanger in which the process gas surrenders heat, then a condenser in which the process gas is cooled to below the boiling point of the contaminating vapours to form condensate, then a second side of the exchanger in which the process gas recovers a part of the previously transferred heat, to then enter a container where the polymer granules are treated.
An analysis method and apparatus are disclosed for analysing an absorption filtering medium that filters volatile organic substances in a process gas in a plant for dehumidifying polymer granules, with a fan that generates a flow of gas through the S filtering medium, an analyzer of the total concentration of the organic carbon, a sensor to detect the pressure downstream of the filtering medium, in which the saturation state and/or the absorbent capacity and/or the deterioration over time of the filtering medium is determined by a comparison of the measured concentrations of total organic carbon in the flow of gas upstream and downstream of the filtering medium.
A method and an apparatus are disclosed for processing plastics, in which the material in incoherent solid state is dehumidified in a hopper and is then melted in an extruder, after which the molten material is used in a moulding device for moulding by injection and/or by blow moulding and/or compression, and in which a set point pressure value of the molten material is set on the basis of a measured residual humidity value of the dehumidified incoherent solid material, so as to decrease the pressure value by a preset variation value if the measured residual humidity value is lower than a reference value and to increase the pressure value by a preset variation value if the measured residual humidity value is higher than said reference value.
B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
B29B 13/02 - Conditioning or physical treatment of the material to be shaped by heating
F26B 3/06 - Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
F26B 17/14 - Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity the materials moving through a counter-current of gas
F26B 21/04 - Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
12.
Device For Purifying A Process Fluid And Dehumidifying Plant Including Such A Device
A purifying device for purifying a process fluid that flows in a dehumidifying plant for dehumidifying plastics includes a first layer configured for filtering the process fluid, and a second layer configured for reducing, by adsorption, substances that are harmful for health, in particular COV/SOV, which are present in the process fluid.
B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
F26B 25/00 - DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM - Details of general application not covered by group or
A deodorization method and apparatus are disclosed to eliminate, reduce or correct the odour of incoherent plastics, i.e. in the form of granules and/or microgranules and/or powder and/or flakes or the like, with a container of the incoherent plastics, actuator means for generating a process gas flow from a gas inlet to a gas outlet of said container, olfactory sensor means arranged to detect odorous emissions in the process gas exiting from said container, control means configured to control at least one parameter of the process gas on the basis of an odour intensity measured by said olfactory sensor means, with the aim of eliminating the substances that cause undesired odours from the incoherent plastics that is usable in a transformation process to make an end product.
A control method is disclosed for controlling a dosing apparatus for dosing products made of plastics (P) in granules, microgranules, flakes, or powder, to obtain polymeric mixtures, with one or more feeding hoppers (2) to contain the products (P), each feeding hopper (2) with a shutter element (4) to adjust the passage section of a dosage opening (7) through which the product (P) drops by gravity inside a batch hopper (BT) with a weighing cell (CP), in which, for each feeding hopper (2), at least one operating parameter is adjusted of the shutter element (4) as a function of the weight detected by the weighing cell (CP), to obtain the desired quantity of dosed product, and to store the data of every single dose to obtain a self-adapting predictive system for predicting the quantity of dosed product.
B29B 7/24 - Component parts, details or accessories; Auxiliary operations for feeding
B29B 7/28 - Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
B29B 7/58 - Component parts, details or accessories; Auxiliary operations
B29B 7/60 - Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
B29B 7/78 - Mixing; Kneading using other mixers or combinations of dissimilar mixers by gravity, e.g. falling particle mixers
B29C 48/285 - Feeding the extrusion material to the extruder
B29C 31/02 - Dispensing from vessels, e.g. hoppers
F16K 3/02 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
F16K 3/34 - Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
G01G 21/00 - WEIGHING - Details of weighing apparatus
A method and an apparatus are disclosed for analyzing an absorption filtering medium that filters volatile organic substances in a process gas in a dehumidification plant for dehumidifying polymer granules, with a fan that generates a flow of gas through the filtering medium, an analyzer for analyzing the concentration of total organic carbon, a sensor for detecting pressure downstream of the filtering medium, in which the state of saturation and/or the absorbent capacity and/or the deterioration over time of the filtering medium is determined by a comparison of the measured concentrations of the total organic carbon in the flow of gas upstream and downstream of the filtering medium.
B29B 13/00 - Conditioning or physical treatment of the material to be shaped
B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
B01D 53/30 - Controlling by gas-analysis apparatus
B01D 53/00 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
B01D 53/14 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
16.
APPARATUS AND METHOD FOR TREATING INCOHERENT MATERIAL
An analysis method and apparatus are disclosed for treating polymer granules at least part of which comes from post-consumer recycling, in which a flow of a process gas is purified from contaminating vapours by traversing, in sequence, first a dust collector filter that retains the solid particles contained in the gas, then a first side of a gas/gas heat exchanger in which the process gas surrenders heat, then a condenser in which the process gas is cooled to below the boiling point of the contaminating vapours to form condensate, then a second side of said exchanger in which the process gas recovers a part of the previously transferred heat, to then enter a container where the polymer granules are treated.
B29B 13/00 - Conditioning or physical treatment of the material to be shaped
B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
B29B 17/02 - Separating plastics from other materials
F26B 3/16 - Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the materials or objects to be dried being moved by gravity in a counter-flow of the gas or vapour
F26B 3/06 - Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
F26B 17/12 - Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity
F26B 21/00 - Arrangements for supplying or controlling air or gases for drying solid materials or objects
F26B 21/02 - Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
An analysis method and apparatus are disclosed for analysing an absorption filtering medium that filters volatile organic substances in a process gas in a plant for dehumidifying polymer granules, with a fan (3) that generates a flow of gas through the filtering medium (4), an analyzer (14) of the total concentration of the organic carbon, a sensor to detect the pressure downstream of the filtering medium, in which the saturation state and/or the absorbent capacity and/or the deterioration over time of the filtering medium (4) is determined by a comparison of the measured concentrations of total organic carbon in the flow of gas upstream and downstream of the filtering medium.
An analysis method and apparatus are disclosed for analysing an absorption filtering medium that filters volatile organic substances in a process gas in a plant for dehumidifying polymer granules, with a fan (3) that generates a flow of gas through the filtering medium (4), an analyzer (14) of the total concentration of the organic carbon, a sensor to detect the pressure downstream of the filtering medium, in which the saturation state and/or the absorbent capacity and/or the deterioration over time of the filtering medium (4) is determined by a comparison of the measured concentrations of total organic carbon in the flow of gas upstream and downstream of the filtering medium.
A method and an apparatus for the dehumidification and/or drying of plastic material in the form of granules and/or micro-granules and/or powder and/or flakes or similar are described, with at least one hopper for dehumidifying/drying the plastic material, a generator of a process fluid that passes through the hopper, at least two molecular sieves towers arranged in parallel and operating alternately to dehumidify the process fluid, and at least one source of a regeneration fluid by heating the molecular sieves. The invention allows to improve the energy efficiency of the regeneration cycle of molecular sieves.
A filtration device for heated process air used in an apparatus for the dehumidification of plastics in granules is disclosed, with a filter medium of tubular shape that is crossed by the air radially from the outside towards the inside and which comprises an outlet end through which the filtered gas can exit in an axial direction, a bottom placed at the outlet end of the filtered gas and at least one ring-shaped seal placed on an edge of the bottom to define an annular sealing zone against a seal seat, in which the seal is made of a silicone material by means of an injection overmoulding performed directly on the bottom.
B01D 46/54 - Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
F26B 21/00 - Arrangements for supplying or controlling air or gases for drying solid materials or objects
F24F 3/14 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by dehumidification
A method and an apparatus are disclosed for processing plastics, in which the material in incoherent solid state is dehumidified in a hopper and is then melted in an extruder, after which the molten material is used in a moulding device for moulding by injection and/or by blow moulding and/or compression, and in which a set point pressure value of the molten material is set on the basis of a measured residual humidity value of the dehumidified incoherent solid material, so as to decrease the pressure value by a preset variation value if the measured residual humidity value is lower than a reference value and to increase the pressure value by a preset variation value if the measured residual humidity value is higher than said reference value.
F26B 3/06 - Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
F26B 17/14 - Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity the materials moving through a counter-current of gas
F26B 21/04 - Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
22.
DEVICE FOR PURIFYING A PROCESS FLUID AND DEHUMIDIFYING PLANT INCLUDING SUCH A DEVICE
A purifying device (6) for purifying a process fluid that flows in a dehumidifying plant (1) for dehumidifying plastics comprises a first layer (7) configured for filtering the process fluid, and a second layer (8) configured for reducing, by adsorption, substances that are harmful for health, in particular COV/SOV, which are present in the process fluid.
F26B 25/00 - DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM - Details of general application not covered by group or
B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
A method and an apparatus for the dehumidification and/or drying of plastic material in the form of granules and/or micro-granules and/or powder and/or flakes or similar are described, with at least one hopper for dehumidifying/drying the plastic material, a generator of a process fluid that passes through the hopper, at least two molecular sieves towers arranged in parallel and operating alternately to dehumidify the process fluid, and at least one source of a regeneration fluid by heating the molecular sieves. The invention allows to improve the energy efficiency of the regeneration cycle of molecular sieves.
F16K 3/00 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
F26B 21/02 - Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
24.
Method and system of controlling a plant for dehumidifying and/or drying
B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
F26B 17/12 - Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity
F26B 9/06 - Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
09 - Scientific and electric apparatus and instruments
Goods & Services
Software; industrial software; application software;
industrial controls incorporating software; industrial
process control software; electronic equipment for
controlling and managing the operation of machine tools.
09 - Scientific and electric apparatus and instruments
Goods & Services
Recorded and downloadable computer software for industrial process control; industrial computer software for monitoring and controlling industrial processes; industrial computer software for supervisory control and data acquisition (SCADA) for process control and gathering data to control equipment and conditions; computer application software for use in database management; industrial process control software
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer software; Industrial software; Application software; Industrial controls incorporating software; Industrial process control software; Electronic apparatus for supervising and managing the operation of machine tools.
28.
Method and system for controlling and optimising a dehumidifying and/or drying process
Method of controlling and optimising a plant for dehumidifying and/or drying plastic material in granular and/or micro-granular and/or powder and/or flake or similar form, wherein the plant includes a process fluid generator and at least one dehumidifying/drying hopper intended for supplying a respective user machine, in particular a machine for treating and transforming plastic material, including a melting device for melting the plastic material and a moulding device for moulding, in particular by injection moulding and/or blow moulding and/or compression moulding, the plastic material. The method includes the steps of detecting a process parameter of the plastic material and adjusting at least one further process parameter of the plant on the basis of the detected value of the process parameter. The detected process parameter is the intrinsic viscosity of the plastic material in melted state.
B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
F26B 3/06 - Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
F26B 17/12 - Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity
29.
METHOD AND SYSTEM OF CONTROLLING A PLANT FOR DEHUMIDIFYING AND/OR DRYING
A method is disclosed of controlling a plant (2) for dehumidifying and/or drying plastic material in granular and/or micro-granular and/or powder and/or flake or similar form, this plant (2) comprising a process fluid generator (4) and at least one dehumidifying/drying hopper (5) for feeding a respective user machine (3) associated with the plant (2) and comprising a melting device (19) for melting the plastic material and a moulding device (22) for moulding, in particular by injection moulding and/or blow moulding and/or compression moulding, the plastic material. The method of controlling comprises the steps of detecting in the user machine (3) a pressure (Ppwp) of the plastic material in melted state and modifying at least one process parameter (Dp) of the plant (2) on the basis of the detected value of this pressure (Ppwp).
F26B 9/06 - Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
F26B 21/06 - Controlling, e.g. regulating, parameters of gas supply
Method of controlling and optimising a plant (2) for dehumidifying and/or drying plastics in granular and/or micro-granular and/or powder and/or flake or similar form, said plant (2) comprising a process fluid generator (3) and at least one dehumidifying/drying hopper (4) intended for feeding a respective user machine (15), in particular a machine for treating and transforming plastics, said user machine (15) comprising a melting device (16) for melting said plastics and a moulding device (17) for moulding, in particular by injection moulding and/or blow moulding and/or compression moulding, said plastics. The method comprises the steps of detecting a process parameter (iv) of said plastics; and adjusting at least one further process parameter (K, Dp, tr) of said plant (2) on the basis of the detected value of said process parameter (iv). The detected process parameter is the intrinsic viscosity (iv) of said plastics in melted state.
