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Turbo Separator

The stock is fed tangentially into the inlet chamber. The inlet chamber has two separate outlets for light and heavy rejects. The light rejects are taken from the center of the door whereas the heavy rejects which accumulate in the chamber are taken out tangentially at regular intervals and drained.

The stock is screened with the help of a specially designed rotor and the perforated plate. The accept is collected in the accept chamber whereas the light rejects are taken in the secondary screen for fiber recovery.

Principle

Features

  • Operating consistency at 2-3%
     

  • Light and heavy impurities are separated and efficiently removed.
     

  • Due to high deflating action, the screen is ideally suited to kraft and other types of furnish.

Fractionating Screen

There is a tendency in regular screening for the long fibre to be rejected by a screen. In fractionating Screen, the principle is exploited by running the screen with a high reject rate, typically over 30% by mass.

This means that the shorter fibres tend to be found in the accept and the longer fibres are found in the reject and carry with them nearly all of the remaining contaminants. 

Principle

Application

  • A Fractionating Screen is used to split the stock into two discrete pulp stocks with different fibre lengths. 
     

  • These independent stocks can then be treated or used differently. 

  • Can Be Operated on a range of stock consistencies but is generally under 3.5%.
     

  • Fractionation is normally performed after Pulping, Cleaning, and Coarse screening to prevent heavy wear on the Fractionating screen
     

  • Can be used as a coarse or fine screen design with very minor modifications.

Features

Technical Specification

Technical Specification

Up Flow Screen

Stock is enter tangentially into the bottom of the screen and rejects exit from the top. Heavy impurities settle out from the feed and migrates to the reject outlet below. The early removal of heavy Impurities results to more efficient screen performance. The Stock then swirls upward through the screening zone.

Principle

Application

  • Used in the Pulp Preparation with high Production Capacity.
     

  • Designed into the promoting flow type structure.

  • Operating Consistency between 1.0-3.0%.
     

  • Heavy Duty Bearing Housing.
     

  • Easy access to Screen Basket and rotor for cleaning, adjustment, and inspection.
     

  • Reject Dilution Port for high-consistency application.

Features

Technical Specification

Technical Specification

Medium Consistency Horizontal Pressure Screen

The unscreened stock is tangentially fed into the inlet chamber which avoids heavyweight contraries entering between the rotor and screen basket thereby ensuring any damage to the equipment.

A specially designed rotor provided with Foils / Cam drives the stock at high speed so that it approaches the screen surface at a very sharp angle relative to the tangent line of the screen basket resulting in excellent screening.

Principle

Application

  • Medium Consistency Horizontal Pressure Screen is ideally suited for eliminating contraries in thick stock preparation system for paper plant based on recycled fibre.

  • Operating consistencies between 2 - 4 % with a conical hole drilled basket and 3.0 % with a slotted basket.
     

  • Centrifugal type with closed and specially designed foil/cam type Rotor ensures excellent screening with good defibrication prior to refining without fractionating contaminants.
     

  • Low specific power.
     

  • Little space requirement and less maintenance.
     

  • Can be Fitted with drilled or slotted baskets without any modification.
     

  • The rejects from the chamber can be taken in a REJECT SCREEN / REJECT SEPARATOR. 

Features

Technical Specification

Technical Specification

Medium Consistency Vertical Pressure Screen

The unscreened stock is tangentially fed into the inlet chamber which avoids heavyweight contraries entering between the rotor and screen basket thereby ensuring any damage to the equipment.

A specially designed rotor provided with Foils drives the stock at high speed so that it approaches the screen surface at a very sharp angle relative to the tangent line of the screen basket resulting in excellent screening.

Principle

Application

  • Medium Consistency Vertical Centrifugal Outward flow type Pressure Screen for eliminating contraries in thick stock preparation system.

  • Operating consistencies between 2-4% with a conical hole drilled basket and 3.0 % with a slotted basket.
     

  • Centrifugal type with closed and specially designed foil type Rotor ensures excellent screening prior to refining without fractionating contaminants.
     

  • Low specific power.
     

  • Little space requirement and less maintenance.
     

  • Can be Fitted with drilled or slotted baskets without any modification.
     

  • The rejects from the chamber can be taken in a     REJECT SCREEN / REJECT SEPARATOR.
     

  • The three-bearing system with bottom thrust bearing.
     

  • Grease pump for lubrication.

Features

Technical Specification

Technical Specification

Low Consistency Vertical Pressure Screen

The unscreened stock is tangential fed into the inlet chamber. Specially designed Multi Vane aerofoil rotor drives the stock at high speed resulting in excellent screening.

Principle

Application

  • Low Consistency Vertical Centrifugal Outward flow type Pressure Screen for fine screening of pulp in stock preparation or ahead of paper machine at Low consistency of 0.5 – 1.2 %.

  • Low Pulsation due to specially designed multi-vane aerofoil type rotor design.
     

  • Ideally suited for fine screening in stock preparation and approach flow system ahead of the paper machine.
     

  • Operating consistency 0.5 – 1.2 %.
     

  • Good screening effect improves paper quality.
     

  • High throughput with low specific power.
     

  • Less maintenance.
     

  • The rejects from the chamber can be taken in a REJECT     SCREEN.
     

  • Fitted with Basket–slotted or perforated type.
     

  • A three-bearing system with bottom thrust bearing.
     

  • Grease pump for lubrication.

Features

Technical Specification

Technical Specification

Centripetal Screen 

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

Reject Screen HOLE/ SLOT

SAMARTH REJECT SCREEN is a Secondary Screen with a Washing Cycle to handle the rejects of the Primary Screen and ensures no fiber loss. In some applications, it can also be used as a tertiary reject handling screen for fiber recovery.

The Reject Screen works in cycles with fully automatic operation. The stock to be processed is entered into the inlet chamber for a predetermined time (depending upon the contraries in the furnish) in which a specially designed three vanes rotor rotates and cleans the fibers through a vertical screen plate with calibrated holes. Contaminants are stopped by this screen plate which is then washed in a washing process to separate & further recover the good fibers. The reject is finally drained & the whole cycle repeats. The cycle time duration is adjusted depending upon the contaminants in the stock.

Principle

  • High Performance In Reject Processing.
     

  • Minimum Fiber Loss.
     

  • Highly Effective.
     

  • Low Absorbed Power.
     

  • Fully Automatic Operation.
     

  • Minimum Space Requirement.
     

  • Low Pressure Drop.
     

  • No Vibration.

Features

Technical Specification

Technical Specification

Reject Separator

Application

  • The reject separator is used as a tail-end reject handing system for the continuous removal of light contaminants.
     

  • A specially designed rotor impels the stock fed in against the screen & and segregates the contaminants.
     

  • The rotor is fitted with replaceable sweeping and distributing blades. 

  • Effective removal of contaminants with minimum fiber loss.
     

  • Suitable for handling higher reject contaminants.
     

  • Can be used at higher stock consistency of 3-5% in stock preparation and in approach flow system at 1-2%

Features

Technical Specification

Technical Specification

Vibrating Screen

The specially designed Vibratory motor fixed to the cradle suspended on for heavy duty helical springs provides controlled vibration to the perforated screen plate to screen the stock and reduces fiber loss.

Principle

Features

  • Low power consumption with high efficiency.

Technical Specification

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