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Hot Dispersion System

The screened & deinked stock is fed to the screw press for dewatering purposes and achieves stock consistency of 30%. The dewatered stock is then passed through various screws before entering the heating screw.

The stock temperature reaches as high as 1200 C and is fed to the disc dispersion through a feeding screw where it is subjected to high shear force by sharpened teeth of dispersing disc and low disc gap of 0.01 mm accuracy achieved by high precision electro-hydraulic arrangement. The impurities such as specks, hot melts, stickies, etc. get dispersed & and drastically improve paper cleanliness.

Principle

Comprises of

  • Screw press

  • Conveying & heating screw 

  • Feeding screw

  • Disc dispersor

  • Application & advantages
     

  • For final treatment in waste paper recycling pulp mill of writing printing, newsprint, tissue, liner board, and carton board to disperse specks, hot melts, and stickies after fine screening.
     

  • Significant improvement in paper cleanliness & and appearance even with low-grade furnish.
     

  • Improve washability and enable flotation of printing ink released from fibers during dispersion.
     

  • Reduces the problem of stickies and hot melts thereby improving machine runnability.
     

  • Homogeneous mixing of bleaching chemicals.

Application & Advantages

Technical Specification

Technical Specifications

Screw Press

The floatation Deinking System comprises of series of Primary Cells and Secondary Cells fitted with injector nozzles through which stock is passed. The nozzles are designed in such a way that while the stock is passing vacuum is created which sucks the air into the injector. The injector allows mixing of Air to Pulp and results in micro turbulence that generate wide range of air bubble sizes. Printing inks, stickies etc which are hydrophobic in nature get adhere to these air bubbles and make foam layer which is then separated and collected in a separate foam tank. The collected foam is again treated in Secondary cell for maximum yield.

Principle

Application

  • The floatation Deinking System comprises of series of Primary Cells and Secondary Cells fitted with injector nozzles through which stock is passed.
     

  • The nozzles are designed in such a way that while the stock is passing vacuum is created which sucks the air into the injector. 

  • Ensures Efficient removal of printing ink, stickies, etc thereby improving the quality of paper.
     

  • Improves brightness and optical cleanliness and removal of stickies and to some extent removal of ash.
     

  • The Ellipse cell floatation system consists of two stages i.e Primary and Secondary stages.
     

  • The primary stage improves brightness and cleanliness while the secondary stage improves the yield.
     

  • Due to two stage system, the goal of maximum ink removal and maximum yield are reached optimally.
     

  • Simple level control loop and high reliability.

Features

Technical Specification

Plug Screw 

The floatation Deinking System comprises of series of Primary Cells and Secondary Cells fitted with injector nozzles through which stock is passed. The nozzles are designed in such a way that while the stock is passing vacuum is created which sucks the air into the injector. The injector allows mixing of Air to Pulp and results in micro turbulence that generate wide range of air bubble sizes. Printing inks, stickies etc which are hydrophobic in nature get adhere to these air bubbles and make foam layer which is then separated and collected in a separate foam tank. The collected foam is again treated in Secondary cell for maximum yield.

Principle

Application

  • The floatation Deinking System comprises of series of Primary Cells and Secondary Cells fitted with injector nozzles through which stock is passed.
     

  • The nozzles are designed in such a way that while the stock is passing vacuum is created which sucks the air into the injector. 

  • Ensures Efficient removal of printing ink, stickies, etc thereby improving the quality of paper.
     

  • Improves brightness and optical cleanliness and removal of stickies and to some extent removal of ash.
     

  • The Ellipse cell floatation system consists of two stages i.e Primary and Secondary stages.
     

  • The primary stage improves brightness and cleanliness while the secondary stage improves the yield.
     

  • Due to two stage system, the goal of maximum ink removal and maximum yield are reached optimally.
     

  • Simple level control loop and high reliability.

Features

Technical Specification

Shedder Screw

The floatation Deinking System comprises of series of Primary Cells and Secondary Cells fitted with injector nozzles through which stock is passed. The nozzles are designed in such a way that while the stock is passing vacuum is created which sucks the air into the injector. The injector allows mixing of Air to Pulp and results in micro turbulence that generate wide range of air bubble sizes. Printing inks, stickies etc which are hydrophobic in nature get adhere to these air bubbles and make foam layer which is then separated and collected in a separate foam tank. The collected foam is again treated in Secondary cell for maximum yield.

Principle

Application

  • The floatation Deinking System comprises of series of Primary Cells and Secondary Cells fitted with injector nozzles through which stock is passed.
     

  • The nozzles are designed in such a way that while the stock is passing vacuum is created which sucks the air into the injector. 

  • Ensures Efficient removal of printing ink, stickies, etc thereby improving the quality of paper.
     

  • Improves brightness and optical cleanliness and removal of stickies and to some extent removal of ash.
     

  • The Ellipse cell floatation system consists of two stages i.e Primary and Secondary stages.
     

  • The primary stage improves brightness and cleanliness while the secondary stage improves the yield.
     

  • Due to two stage system, the goal of maximum ink removal and maximum yield are reached optimally.
     

  • Simple level control loop and high reliability.

Features

Technical Specification

Heating Screw

The floatation Deinking System comprises of series of Primary Cells and Secondary Cells fitted with injector nozzles through which stock is passed. The nozzles are designed in such a way that while the stock is passing vacuum is created which sucks the air into the injector. The injector allows mixing of Air to Pulp and results in micro turbulence that generate wide range of air bubble sizes. Printing inks, stickies etc which are hydrophobic in nature get adhere to these air bubbles and make foam layer which is then separated and collected in a separate foam tank. The collected foam is again treated in Secondary cell for maximum yield.

Principle

Application

  • The floatation Deinking System comprises of series of Primary Cells and Secondary Cells fitted with injector nozzles through which stock is passed.
     

  • The nozzles are designed in such a way that while the stock is passing vacuum is created which sucks the air into the injector. 

  • Ensures Efficient removal of printing ink, stickies, etc thereby improving the quality of paper.
     

  • Improves brightness and optical cleanliness and removal of stickies and to some extent removal of ash.
     

  • The Ellipse cell floatation system consists of two stages i.e Primary and Secondary stages.
     

  • The primary stage improves brightness and cleanliness while the secondary stage improves the yield.
     

  • Due to two stage system, the goal of maximum ink removal and maximum yield are reached optimally.
     

  • Simple level control loop and high reliability.

Features

Technical Specification

Feeding Screw

The floatation Deinking System comprises of series of Primary Cells and Secondary Cells fitted with injector nozzles through which stock is passed. The nozzles are designed in such a way that while the stock is passing vacuum is created which sucks the air into the injector. The injector allows mixing of Air to Pulp and results in micro turbulence that generate wide range of air bubble sizes. Printing inks, stickies etc which are hydrophobic in nature get adhere to these air bubbles and make foam layer which is then separated and collected in a separate foam tank. The collected foam is again treated in Secondary cell for maximum yield.

Principle

Application

  • The floatation Deinking System comprises of series of Primary Cells and Secondary Cells fitted with injector nozzles through which stock is passed.
     

  • The nozzles are designed in such a way that while the stock is passing vacuum is created which sucks the air into the injector. 

  • Ensures Efficient removal of printing ink, stickies, etc thereby improving the quality of paper.
     

  • Improves brightness and optical cleanliness and removal of stickies and to some extent removal of ash.
     

  • The Ellipse cell floatation system consists of two stages i.e Primary and Secondary stages.
     

  • The primary stage improves brightness and cleanliness while the secondary stage improves the yield.
     

  • Due to two stage system, the goal of maximum ink removal and maximum yield are reached optimally.
     

  • Simple level control loop and high reliability.

Features

Technical Specification

Disc Dispersor 

The floatation Deinking System comprises of series of Primary Cells and Secondary Cells fitted with injector nozzles through which stock is passed. The nozzles are designed in such a way that while the stock is passing vacuum is created which sucks the air into the injector. The injector allows mixing of Air to Pulp and results in micro turbulence that generate wide range of air bubble sizes. Printing inks, stickies etc which are hydrophobic in nature get adhere to these air bubbles and make foam layer which is then separated and collected in a separate foam tank. The collected foam is again treated in Secondary cell for maximum yield.

Principle

Application

  • The floatation Deinking System comprises of series of Primary Cells and Secondary Cells fitted with injector nozzles through which stock is passed.
     

  • The nozzles are designed in such a way that while the stock is passing vacuum is created which sucks the air into the injector. 

  • Ensures Efficient removal of printing ink, stickies, etc thereby improving the quality of paper.
     

  • Improves brightness and optical cleanliness and removal of stickies and to some extent removal of ash.
     

  • The Ellipse cell floatation system consists of two stages i.e Primary and Secondary stages.
     

  • The primary stage improves brightness and cleanliness while the secondary stage improves the yield.
     

  • Due to two stage system, the goal of maximum ink removal and maximum yield are reached optimally.
     

  • Simple level control loop and high reliability.

Features

Technical Specification

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