0405000 hardnip calender

VKPC – PM#1

Training

Calender

Introduction

1. Introduction Trainer

2. Training Schedule

Introduction of the Trainer

Teiichi Tanaka

Paper Machine Engineering Dept.

Training Schedule

Training Time

Breaks

Lunch

Question and Answer

Technical Data

1. Basic Design Data

Basic Design Data – Layout data

Design widthWire width 5.950 mmUntrimmed paper width on pope 5.300 mm

Basis weightT1 (Pulp on Top) 125 - 275 gsmT2 (100% OCC) 125 - 250 gsmCM 105 - 125 gsm

Design production At PM reel max. 744 to/24hWith efficiency 100%Moisture at reel 8%Basis weight 125 gsm (Reference liner grade)

Paper Grade Liner Board (Test Liner: T1, T2)Corrugating Medium

Basic Design Data – Layout data

Reel spoolMax. parent reel diameter: 3.000 mm

Hand of machineStanding at the headbox 　facing the reel: Drive on right hand side

Operating speedProduction speed range 355 - 800 m/minDrive speed 900 m/minDesign speed 900 m/minBalancing speed 900 m/min

Calendering technology

NipNip

Top roll (hard/heating)

Top roll (hard/heating)

Top roll (hard/swimming roll)

Top roll (hard/swimming roll)

Top roll + Nip + Bottom roll = StackTop roll + Nip + Bottom roll = Stack

F

Paper

Machine parameters and calendering characteristics

Factors that influence the calendering process (guide values)

Line load Temperature Speed Moisture

Value higher lower higher lower higher lower higher lower

Paper properties + - + - + - + -

Smoothness + - + - - + + -

Gloss + - + - - + + -

Specific volume

- + - + + - - +

Printability - + - + + - - +

Whiteness/Opacity

- + - + + - - +

Air permeability

- + - + + - - +

+ positive influence - negative influence

Content

General Top Roll (Drive Roll / Heat Roll) Bottom Roll (Swimming Roll) Expander Roll Doctor Nip Control Hot Water Circulation Unit Swimming Roll Hydraulic Flow Hydraulic Flow Pneumatic Flow Operation Panel Touch Panel

General

Top Roll (Drive Roll /Heat Roll)

Bottom Roll (Swimming Roll)

Expander Roll

Doctor (ABC Type)

Nip Control

Hot Water Circulation

Swimming Roll Hydraulic Flow

Hydraulic Flow

Line Filter (Micro-Filter)

Proportion Electro-Hydraulic Relieving and Reducing Valve

Flow Control and Check Valve

Pneumatic Flow (1) – Pneumatic Valve Stand

Pneumatic Flow (2) – Pneumatic Valve Stand Piping Diagram (1)

Pneumatic Flow (3) – Pneumatic Valve Stand Piping Diagram (2)

Operation Panel (1)

Operation Panel (2)

Operation Panel (3)

Touch Panel (1)

Touch Panel (2)

Touch Panel (3)

Touch Panel (4)