PVC sheet extrusion line -- technical specification

1.  exploration situation

380V/3Phase/50Hz

2.  material

PVC powder

3.  Product dimension  

L=600mm，δ=0.2～1.5mm

4.  capacity

260-350Kg/h

二、Equipment list

1. SJZ80/156 conical twin screw extruder

1 unit

2. Down stream Equipment

 1).mould

1 unit

 2).Three-roller calendar

1 unit

 3).Roller temperature controller

1 unit

 4).Cooling bracket, trim cutting unit

1 unit

5).round

1 unit

 6).Haul-off unit and waste margin winder

1 unit

 7).Double position Winder

1 unit

8).Electric control system

1 unit

三、Equipment specification

1、SJZ80/156 Parameters of SJZ80/156 conical twin screw extruder

Parameter name

Technical parameters

EXTRUDER

Electric control cabinet

Main inverter: ABB ; and inverter for dosing: ABB

Capacity

260-350Kg/h

Outside measurement

4750mmX1550mmX2460mm

Wright of the extruder

5000Kg

Inlet wire terminal of main power

Three-phase four-wire system

Motor, pump

Main AC motor: 75kw, Dosing motor: 0.75kw, vacuum pump: made in China

Type of temperature control curve

Tem. Fluctuating self-adjusting ( PID type)

original places of thermometer and manometer

senor made in China

The brands and origin places of the conductive oil; The temperature of carbon deposit

YD132, Jiangyin Chemical Plant; Carbon deposite temperature 200 ℃.

Pressure display

With melt pressure and temperature display

Loading method

Spiral loading

Connection way of the die head with the flange

Bolt connection

Parameter display way in the control cabinet

Mainly Digital way

Characteristics which are better than others

Good plasticization, big capacity, reasonable design, high precision, high-quality component and material which are mostly manufactured by ourselves. Good stability and easy control help to produce the PVC products.

SCREW

Diameter

80/156mm

Effective length

1815mm

No.

2 pcs

Mesh type

Conical mesh

（KNM）Total torque

14.2KNm

（r/min）Rotation speed

1-34.7counter-rotation, outside-forward

（mm）Nitride thickness

0.5-0.7 mm

SuitableforPowdermaterialor not ?

Suitable

Heating method of the inner part of the screw

Oil heating and thermostatic control

Screw type

Conical screw

 BARREL

Type

Whole

Heating method

Special heaters with stainless steel covers, cooled by blowers

Barrel cooling zones

5zones

Heating power

36Kw（4/4/8/8/12）

Tem. Control range

50-300℃

Barrel cooling zones

4区4 zones

Connection cover for the die head

3Cr13 stainless steel, chromed in the surface, inner confluent unit

Cooling control

High-tem. Electromagnetic valve

Cooling medium

Oil and blower with power as 550w

Origin of screw and barrel

Made by selves

Nitride thickness

0.5-0.7mm

TRANSMISSION

Main motor power

75Kw

Working method of the main motor

AC motor , connected with the gear box

Rotation speed of the main motor

0-1500r/min

Type of gear box

Harden and helical gear

Gear box

Nitrided and carbonized , material is 20CrMoTi

Type of distributor

Two distribution shafts are driven by conical gear

Regulator of main motor

AC regulator imported brand

VACUUM

Vacuum pump

Direct-connected water-circle sealed pump

Motor power

2.2Kw

Working method of motor

Three-phase asychronized

Vacuum degree

0-0.075MPa

No. of vacuum pumps

1 unit

DOSING

Loading method

Dosing loading

Dosing screw rotation speed

0-50r/min

Motor power

0.75KW

Motor rotation speed

0-1500r/min

Speed regulation method

AC inverter

Working method of motor

3-phase synchronized , connected with the reducer

OIL TANK

Motor power（Kw）

0.75 Kw

Moter working method

AC synchronized motor

Oil heating control range

50-200℃

Heating power（Kw）

6 Kw

Working method of pump

Gear pump directly connected with the motor

Flow（L/min）

10 L/min

Working pressure（MPa）

0.2-0.3 Mpa

Heat exchanger

Water ( must be cleaned every year)

2、Downstream line

1）Mould

Constructure

Cloth hanger type

Effective width of the t-die

800mm

Specification of product:

δ=0.2-1.5mm

2）．Three-roller calender

Roller

3×Ф400×800mm

Roller roughness

≤Ra0.025um

Hardness

≥HRC55

Chrome thickness

≥0.08mm

Reducer

GNORD reducer and Japan YSKAWA  motor

Driving power

3×2.9Kw

Control

Japan YSKAWA Servor controller

Gap adjustment

Mechanical transmission, with limit device, safety emergency stop switch and synchronous control system

Roller type

Vertical , upper in and down out

Wall of calendar

Whole steel plate

Bearing

NSKJapan NSK

Rotational joint

Yang Guang, Taiwan

Line speed

37米/分37m/min

Between middle and down rollers a lamp is equipped. In order to look after the opposite side, two other lamps will be installed.

3）.Roller temperature controller

Cooling medium

oil

Ranger control

30-180℃

Heating power

3×18Kw

Heat exchanger

3×8 m²

oil pump power

3Kw

Cooling control

Pneumatic angle valve

with  alarm system about the pressure, temperature, and water.

4）．Cooling bracket and trimming cutting unit

Length

6m

Supporting roller

Oxidized aluminum roller, polished

Specification

Φ80×1000㎜

Trimming cutting unit

2 pcs, adjustable

5)round（杰伟自制）

round

1units

6）．Haul-off unit and waste margin winder            

Rubber roller

Ф200x1000mm

Material roller

Rubber

Reducer

GNORD reducer and Japan YSKAWA  motor

Driving power

2.9Kw

Control

Japan YSKAWA Servor controller

Can be synchronized with the calendar, and can be separately

Waste margin winder            

2 units

7）．Double position Winder

Type

double position,

Drive                          

moment motor

Automatic length counting

can be set

winder roller                   

3air bulge axis

Maximum winding diameter

800mm

8).Electric control

Temperature control meter

Omron, Japan

Main regulator

DWELL

Contactor

Siemens

relay

IDEC

Breaker

Schneider

Air switch

Chint

Autonics mm