US2025320661A1PendingUtilityA1

Optimizing paper making process of a paper machine

Assignee: HABER INCPriority: Mar 28, 2024Filed: Mar 27, 2025Published: Oct 16, 2025
Est. expiryMar 28, 2044(~17.7 yrs left)· nominal 20-yr term from priority
D21G 9/0018
39
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Claims

Abstract

The present disclosure relates to a system and a method for optimizing paper making process of a paper machine. The system described herein comprises a process device configured to receive a process parameters corresponding to characteristics of the material and chemical composition that is used in a paper making process. Further, the process device is configured to determine an optimal concentration level of a plurality of dosing additives based on the received process parameters. Finally, the process device is configured to control concentration level of the plurality of dosing additives for optimizing the paper making process based on the determined optimal concentration level.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A system for optimizing paper making process of a paper machine, the system comprising:
 a process device configured to:
 receive a process parameters corresponding to characteristics of the material and chemical composition that is used in a paper making process; 
 determine an optimal concentration level of a plurality of dosing additives based on the received process parameters; and 
 control concentration level of the plurality of dosing additives for optimizing the paper making process based on the determined optimal concentration level. 
   
     
     
         2 . The system of  claim 1 , wherein, to determine the optimal concentration level, the process device is further configured to:
 compare the received process parameters with predefined reference values;   determine deviations in the received process parameters based on the comparison;   calculate an adjustment in the concentration level of the plurality of dosing additives based on the determined deviations; and   determine an optimal concentration level of the plurality of dosing additives based on the calculated adjustment in the concentration level.   
     
     
         3 . The system of  claim 1 , wherein the process device is further configured to:
 generate at least one control signal based on the received process parameters; and   transmit the at least one control signal to at least one dosing pump, wherein the at least one control signal is transmitted to control the concentration level of the plurality of dosing additives.   
     
     
         4 . The system of  claim 1 , wherein the process parameters corresponds to at least one of pH value, conductivity value, total suspended solids (TSS) concentration value, charge density value, or turbidity value. 
     
     
         5 . The system of  claim 3 , further comprising:
 at least one dosing pump configured to
 determine amount of a plurality of dosing additives based on the at least one control signal received from the process device, and 
 transmit the amount of the plurality of dosing additives in a controlled manner to a mixer. 
   
     
     
         6 . The system of  claim 5 , further comprising:
 a mixer comprising:
 a nozzle mounted, via a tri-clamp arrangement, on a process pipeline, wherein the nozzle assembly includes an inner core for injecting the plurality of dosing additives received from the at least one dosing pump and an outer core for supplying dilution water; and 
 a pressure-controlled booster pump configured to supply dilution water at a pressure higher than an internal pressure of a process fluid received from the process pipeline 
   
     
     
         7 . The system of  claim 6 , wherein the mixer is configured to:
 receive the plurality of dosing additives from the inner core of the nozzle assembly and dilution water from the outer core of the nozzle assembly;   generate a fine mist at a tip of nozzle assembly by combining the plurality of dosing additives with the dilution water; and   perform mixing of the generated fine mist with the process fluid inside the pipeline.   
     
     
         8 . The system of  claim 1 , further comprising:
 a charge analyzer unit configured to:
 continuously extract a filtrate from a headbox of the paper machine; 
 measure a charge density value of the filtrate; and 
 provide the measured charge density value as the process parameter to the process device. 
   
     
     
         9 . The system of  claim 1 , further comprising:
 a turbidity tester unit that comprises:
 a filtrate unit configured to separate a filtrate from a pulp received from the paper machine; 
 a vacuum pump coupled to the filtrate unit and configured to enhance the filtration of the filtrate from the pulp; 
 a flow cell configured to receive the filtrate from the filtrate unit; and 
 a turbidity sensor disposed within the flow cell and configured to measure turbidity value of the filtrate, and send the turbidity value to the process device. 
   
     
     
         10 . The system of  claim 9 , wherein the turbidity tester unit further comprising:
 a water booster pump configured to supply pressurized cleaning water to the filtrate unit; and   a filtrate drain valve configured to control the flow of pressurized cleaning water for flushing the filtrate unit.   
     
     
         11 . The system of  claim 1 , wherein the process device is further configured to:
 receive at least one of a pH value, a conductivity value, and a total suspended solids (TSS) concentration value from a plurality of sensors,   wherein the plurality of sensors is in communication with the paper machine.   
     
     
         12 . A method of optimizing paper making process of a paper machine, comprising:
 receiving a process parameters corresponding to characteristics of the material and chemical composition that is used in a paper making process;   determining an optimal concentration level of a plurality of dosing additives based on the received process parameters; and   controlling concentration level of the plurality of dosing additives for optimizing the paper making process based on the determined optimal concentration level.   
     
     
         13 . The method of  claim 12 , for determining the optimal concentration level, further comprises:
 comparing the received process parameters with predefined reference values;   determining deviations in the received process parameters based on the comparison;   calculating an adjustment in the concentration level of the plurality of dosing additives based on the determined deviations; and   determining an optimal concentration level of the plurality of dosing additives based on the calculated adjustment in the concentration level.   
     
     
         14 . The method of  claim 12 , further comprising:
 generating at least one control signal based on the received process parameters; and   transmitting the at least one control signal to at least one dosing pump, wherein the at least one control signal is transmitted to control the concentration level of the plurality of dosing additives.   
     
     
         15 . The method of  claim 12 , wherein the process parameters corresponds to at least one of pH value, conductivity value, total suspended solids (TSS) concentration value, charge density value, or turbidity value. 
     
     
         16 . The method of  claim 14 , further comprising:
 determine, by at least one dosing pump, amount of a plurality of dosing additives based on the at least one control signal received from the process device, and   transmit, by the at least one dosing pump, the amount of the plurality of dosing additives in a controlled manner to a mixer.   
     
     
         17 . The method of  claim 16 , further comprising:
 receiving, by a mixer of the paper machine, the plurality of dosing additives from an inner core of a nozzle assembly of the mixer and dilution water from the outer core of the nozzle assembly;   generating, by the mixer, a fine mist at a tip of the nozzle assembly by combining the plurality of dosing additives with the dilution water; and   performing mixing of the generated fine mist with process fluid.   
     
     
         18 . The method of  claim 12 , further comprising:
 continuously extracting, by a charge analyzer unit of the paper machine, filtrate from a headbox of the paper machine; and   measuring a charge density value of the filtrate.   
     
     
         19 . The method of  claim 14 , further comprising:
 separating, by a turbidity tester unit, a filtrate from the pulp received from the paper machine; and   measuring, by the turbidity tester unit, turbidity value of the filtrate.   
     
     
         20 . The method of  claim 12 , further comprising:
 receiving at least one of pH values, a conductivity value, and a total suspended solids (TSS) concentration value from a plurality of sensors, and   wherein the plurality of sensors is in communication with the paper machine.

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