A cleaning system for cleaning a band circulating in a paper making machine; the system comprising: at least one detecting device configured to detect at least one parameter indicative of the cleaning conditions of the band on at least one portion of the band; at least one cleaning device provided with at least one nozzle to create a jet of a cleaning fluid; the nozzle being arranged so that the jet of cleaning fluid is directed towards the band; a control device configured to regulate the cleaning device on the basis of the at least one parameter indicative of the cleaning of the band.
A monitoring system for monitoring the conditions of a band circulating in a paper-making machine, comprises a guide extending substantially along an axis; and a monitoring apparatus movable along the guide and comprising at least one measuring device configured to measure at least one parameter indicative of the conditions of the band; the apparatus is a self-propelled motorized apparatus, provided with a motor and at least one driving member operated by the motor and which engages at least one corresponding surface of the guide to move the apparatus along the guide.
A monitoring system (1) for monitoring the conditions of a band (W) circulating in a paper-making machine, comprises a guide (2) extending substantially along an axis (A); and a monitoring apparatus (4) movable along the guide (2) and comprising at least one measuring device (23, 24, 25) configured to measure at least one parameter indicative of the conditions of the band (W); the apparatus (4) is a self- propelled motorized apparatus, provided with a motor (11) and at least one driving member (12) operated by the motor (11) and which engages at least one corresponding surface (15) of the guide (2) to move the apparatus (4) along the guide (2).
A monitoring system (1) for monitoring the conditions of a band (W) circulating in a paper-making machine, comprises a guide (2) extending substantially along an axis (A); and a monitoring apparatus (4) movable along the guide (2) and comprising at least one measuring device (23, 24, 25) configured to measure at least one parameter indicative of the conditions of the band (W); the apparatus (4) is a self- propelled motorized apparatus, provided with a motor (11) and at least one driving member (12) operated by the motor (11) and which engages at least one corresponding surface (15) of the guide (2) to move the apparatus (4) along the guide (2).
A monitoring system for monitoring the conditions of a band circulating in a paper making machine is provided with:
a detecting device configured to detect at least one parameter indicative of the conditions of the band; and with a moving assembly configured to move the detecting device along a direction transversal to the circulating direction of the band and comprising a cable moving device.
An apparatus for controlling the conditions of at least one band circulating in a paper making machine along a circulation direction is provided with at least one first detecting device configured to detect at least one first parameter indicative of the humidity of the band and positionable in a first position between a pressing station and a conditioning station of the paper making machine; at least one second detecting device configured to detect at least one second parameter indicative of the humidity of the band and positionable in a second position downstream of the conditioning station; and at least one processing unit configured to determine at least one datum indicative of the condition of the band on the basis of the first parameter indicative of the humidity and of the second parameter indicative of the humidity.
A monitoring system for monitoring the conditions of a band (2) circulating in a paper making machine (3) is provided with : a detecting device (6) configured to detect at least one parameter indicative of the conditions of the band (2); and with a moving assembly (7) configured to move the detecting device (6) along a direction (A) transversal to the circulating direction (S2) of the band (2) and comprising a cable moving device (20).
A monitoring system for monitoring the conditions of a band (2) circulating in a paper making machine (3) is provided with : a detecting device (6) configured to detect at least one parameter indicative of the conditions of the band (2); and with a moving assembly (7) configured to move the detecting device (6) along a direction (A) transversal to the circulating direction (S2) of the band (2) and comprising a cable moving device (20).
A monitoring system for monitoring the conditions of a band (2) circulating in a paper making machine (3) is provided with : a detecting device (6) configured to detect at least one parameter indicative of the conditions of the band (2) provided with a first binding element (11); a carriage (19) configured to move the detecting device (6) with respect to the band (2) and provided with a second binding element (52); and a blocking device (55) configured to selectively fix the first binding element (11) to the second binding element ( 52 ).
APPARATUS AND METHOD FOR CONTROLLING THE CONDITIONS OF AT LEAST ONE BAND CIRCULATING IN A PAPER MAKING MACHINE AND PAPER MAKING MACHINE COMPRISING SAID APPARATUS
An apparatus (7) for controlling the conditions of at least one band (4) circulating in a paper making machine (1) along a circulation direction (dl) is provided with at least one first detecting device (28) configured to detect at least one first parameter indicative of the humidity (Ul) of the band (4) and positionable in a first position (bl) between a pressing station (13) and a conditioning station (14) of the paper making machine (1); at least one second detecting device (29) configured to detect at least one second parameter indicative of the humidity (U2) of the band (4) and positionable in a second position (b2) downstream of the conditioning station (14); and at least one processing unit (34) configured to determine at least one datum (Dl, D2, D3...Dn; ) indicative of the condition of the band (4) on the basis of the first parameter indicative of the humidity (Ul) and of the second parameter indicative of the humidity (U2).
D21G 9/00 - Other accessories for paper-making machines
13.
APPARATUS AND METHOD FOR CONTROLLING THE CONDITIONS OF AT LEAST ONE BAND CIRCULATING IN A PAPER MAKING MACHINE AND PAPER MAKING MACHINE COMPRISING SAID APPARATUS
An apparatus (7) for controlling the conditions of at least one band (4) circulating in a paper making machine (1) along a circulation direction (dl) is provided with at least one first detecting device (28) configured to detect at least one first parameter indicative of the humidity (Ul) of the band (4) and positionable in a first position (bl) between a pressing station (13) and a conditioning station (14) of the paper making machine (1); at least one second detecting device (29) configured to detect at least one second parameter indicative of the humidity (U2) of the band (4) and positionable in a second position (b2) downstream of the conditioning station (14); and at least one processing unit (34) configured to determine at least one datum (Dl, D2, D3...Dn; ) indicative of the condition of the band (4) on the basis of the first parameter indicative of the humidity (Ul) and of the second parameter indicative of the humidity (U2).
The invention relates to a hand-held apparatus for controlling the condition of a circulating band in a papermaking machine; the apparatus comprises a hand-held body which carries: a moisture measuring device, equipped with at least one microwave sensor; a permeability measuring device, comprising at least one water delivery nozzle and a flowmeter associated with the nozzle; and a control unit connected to the measuring devices for processing signals coming therefrom; the body is equipped with at least one handle portion to be grasped by an operator for manually moving and maneuvering the apparatus.
The invention relates to a hand-held apparatus (1) for controlling the condition of a circulating band (W) in a papermaking machine; the apparatus comprises a hand-held body (2) which carries: a moisture measuring device (4), equipped with at least one microwave sensor (15); a permeability measuring device (5), comprising at least one water delivery nozzle (18) and a flowmeter (20) associated with the nozzle (18); and a control unit (6) connected to the measuring devices (4, 5) for processing signals coming therefrom; the body (2) is equipped with at least one handle portion (3) to be grasped by an operator for manually moving and manoeuvring the apparatus (1).
D21G 9/00 - Other accessories for paper-making machines
G01M 3/02 - Investigating fluid tightness of structures by using fluid or vacuum
G01N 15/08 - Investigating permeability, pore volume, or surface area of porous materials
G01N 22/00 - Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
16.
HAND-HELD APPARATUS FOR CONTROLLING THE CONDITION OF A CIRCULATING BAND IN A PAPERMAKING MACHINE
The invention relates to a hand-held apparatus (1) for controlling the condition of a circulating band (W) in a papermaking machine; the apparatus comprises a hand-held body (2) which carries: a moisture measuring device (4), equipped with at least one microwave sensor (15); a permeability measuring device (5), comprising at least one water delivery nozzle (18) and a flowmeter (20) associated with the nozzle (18); and a control unit (6) connected to the measuring devices (4, 5) for processing signals coming therefrom; the body (2) is equipped with at least one handle portion (3) to be grasped by an operator for manually moving and manoeuvring the apparatus (1).
D21G 9/00 - Other accessories for paper-making machines
G01M 3/02 - Investigating fluid tightness of structures by using fluid or vacuum
G01N 15/08 - Investigating permeability, pore volume, or surface area of porous materials
G01N 22/00 - Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
17.
Device for measuring the thickness of a layer of material
A device for measuring the thickness of a layer of material, the device including a reading head and control unit connected to the reading head. The reading head includes a microwave planar type sensor and an A/D converter connected to the microwave sensor and arranged in proximity of the microwave sensor.
G01R 27/04 - Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant in circuits having distributed constants
A device for measuring the water permeability of a material (2) moving along a determinate travelling direction (D) is provided with a nozzle (5), through which a determined water flow (Pu) flows for impinging a surface portion (9) of the material (2); and with first and second reading heads (6a, βb) of a parameter indicative of the quantity of water present in the material (2) arranged upstream and downstream of the nozzle (5) along the travelling direction (D) of the material (2), respectively.
Described herein is a method for measuring, via a microwave sensor, the thickness of a layer of first material, said method envisaging: acquiring at least one frequency response of the layer of first material via a microwave sensor; setting the microwave sensor on a plurality of specimens of second materials for different temperature values in such a way as to obtain reference data; calibrating the microwave sensor as a function of the electrical conductivity of the first material using the reference data; measuring the temperature of the layer of first material via a temperature sensor; determining measurement parameters from the frequency response; and processing the reference data with the measurement parameters to obtain a measurement of the thickness of the layer of first material.
G01R 35/00 - Testing or calibrating of apparatus covered by the other groups of this subclass
G01R 27/08 - Measuring resistance by measuring both voltage and current
G01B 7/06 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness
20.
DEVICE FOR MEASURING THE THICKNESS OF A LAYER OF MATERIAL
A device (1; 1b) for measuring the thickness of a layer of material (20) is provided with reading means (2) and control means (3) connected to the reading means (2). The reading means (2) include a microwave planar type sensor (6) and an A/D converter (8) connected to the microwave sensor (6) and arranged in proximity of the microwave sensor (6).
A device (1; 1b) for measuring the thickness of a layer of material (20) is provided with reading means (2) and control means (3) connected to the reading means (2). The reading means (2) include a microwave planar type sensor (6) and an A/D converter (8) connected to the microwave sensor (6) and arranged in proximity of the microwave sensor (6).
D21G 9/00 - Other accessories for paper-making machines
D21F 7/06 - Indicating or regulating the thickness of the layerSignal devices
G01B 15/02 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
22.
METHOD AND DEVICE FOR MEASURING THE THICKNESS OF A LAYER OF MATERIAL
Described herein is a method for measuring, via a microwave sensor (13) , the thickness of a layer of first material, said method envisaging: acquiring at least one frequency response of the layer of first material via a microwave sensor (13) ; setting (30) the microwave sensor (13) on a plurality of specimens of second materials for different temperature values (Tamb, Tl, T2, T3) in such a way as to obtain reference data (CD, X, Y, S) ; calibrating (31) the microwave sensor (13) as a function of the electrical conductivity of the first material using the reference data (CD, X, Y, S) ; measuring (32) the temperature (Tm) of the layer of first material via a temperature sensor (14); determining (33) measurement parameters (Fl_m, F2_m, Amin_m) from the frequency response; and processing (33) the reference data (CD, X, Y, S) with the measurement parameters (Fl_m, F2__m, Amin_m) to obtain a measurement (Sm) of the thickness of the layer of first material.
G01B 15/02 - Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring thickness
