92 mm Co-Rotating Twin Screw Production Line (200 Hours!)

92 mm Twin Screw Production Line (200 Hours!)


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Description

 92mm Co-Rotating Twin Screw Extrusion Line

1)     Components of SHJ-92 Twin Screw Production Line

a)     Loss in weight feeding system

b)     SHJ-92 Co-rotating Twin Screw Extruder (L/D=44)

c)     Screen exchanger

2)     Loss in weight feeding system

a)     Resin granular feeder for virgin

i)       Feeding capacity: 200-900kg/h (440-1980lb/hr)

ii)      Inverter controls single feeding screw, rotating speed

iii)     Feeding capacity is controlled by PLC

iv)    Including:

(1)   Weighting transducer

(2)   Weighting terminal

(3)   Indicator

(4)   Inverter

(5)   Complementary valve

(6)   Feeding hopper

(7)   Raw material silo

b)     Resin granular feeder for reprocessed

i)       Feeding capacity: 200-900kg/h (440-1980lb/hr)

ii)      Inverter controls twin screw feeding screw, rotating speed

iii)     Feeding capacity is controlled by PLC

iv)    Including:

(1)   Weight transducer

(2)   Weighing terminal

(3)   PLC

(4)   Indicator

(5)   Inverter

(6)   Complementary valve

(7)   Feeding hopper

(8)   Raw material silo

c)     Powder feeder (for powder, carbon, glass, etc.)

i)       Feeding capacity: 136-545 kg/h (300-1200lb/hr)

ii)      Inverter controls twin screw feeding screw, rotating speed

iii)     Feeding capacity is controlled by PLC

iv)    Including:

(1)   Weight transducer

(2)   Weighing terminal

(3)   PLC

(4)   Indicator

(5)   Inverter

(6)   Complementary valve

(7)   Feeding hopper

(8)   Raw material silo

d)     Additive feeder

i)       Feeding capacity: 7-136 kg/h (15-300 lb/h)

ii)      Inverter controls single feeding screw or twin screw, rotating speed

iii)     Feeding capacity is controlled by PLC

iv)    Including:

(1)   Weight transducer

(2)   Weighting terminal

(3)   PLC

(4)   Indicator

(5)   Inverter

(6)   Complementary valve

(7)   Feeding hopper

(8)   Raw material silo

e)     Whole feeding system is controlled by industrial computer for:

f)      Running feeders and stopping feeders automatically.

g)     Setting password for authority management and security

h)     Saving different operating profiles and then operate automatically by the chosen profile

i)       Supervising operating technical parameter, auto alarm, print all records.

j)       Includes a steel shelf (mezzanine) for loss-in-weight feeding system

3)     Specification for SHJ-92 Co-rotating Twin Screw Extruder

a)     Shafts and elements

i)       Screw diameter: 92mm

ii)      Screw length (L/D): ~44

iii)     Screw speed: 500r/min

iv)    Two pair of screw shafts, complete with screw elements:

v)     Screw elements are made of high-speed tool steel (W6Mo5Cr4V2)

vi)    Hardened to ≥61HRC

vii)   The intermeshing screw co-rotating and wipe each other with narrow clearance so that no residues left in the screw flights and cleaning effort is thus reduced.

viii)  The screw shaft system is characterized by following:

ix)    Through-going solid shafts

x)     Screw elements with various pitches and lengths

xi)    Kneading blocks with various angles of stagger, numbers of kneading disks and disk widths

xii)   Screw tips to fix the screw set axially

xiii)  Gear teeth connection to ensure power flow between the screw shaft and screw elements

b)     Barrels

i)       Total length of barrels: 360mm

ii)      Barrel number: 11

iii)     The individual barrel section are designed as:

iv)    Length of barrel #1-11 is 360mm

v)     Barrel #1-11 made of bimetallic material with whole piece hard alloy liner

vi)    Hardened to≥61HRC.

vii)   All barrel sections heated electrically and cooled by water

viii)  Water cooling pipe made by stainless steel and bronze pipe

ix)    Barrel arrangement:

(1)   Barrel#1: open barrel for feeders

(2)   Barrel#2-4: close barrel

(3)   Barrel#5: open barrel, for side feeder and venting

(4)   Barrel#6-9: close barrel

(5)   Barrel#10: open barrel, for venting

(6)   Barrel#11: closed barrel, for extrusion

x)     Barrel sections are available as:

xi)    Closed barrel section

xii)   Barrel section with opening for material feed or for exhausting

xiii)  Barrel section with top and lateral opening for top venting and the connection of side feeder

xiv)  The processing section is provided with stainless steel cover as a protection against accidental contact.

c)     Gearbox: Henschel TGE3-95-DOS-L-2.5 – manufactured in Germany

i)       Input power: 540kw

ii)      Input speed: 1500rpm

iii)     The rotating speed of output shaft is 600rpm

iv)    The torque is 4129Nm/Shaft ( based on safety ratio 1.25)

v)     Axial force: Faconst=99663kN/shaft

vi)    Back pressure=147bar

d)     Main motor: Siemens AC Motor, 315kw

i)       355L/1LG0357-4AB70

ii)      Rated speed: 1490rpm

iii)     Efficiency: 95.2

iv)    Power factor: 0.87

v)     Rated current: 578A

e)     Torque Limiting Coupling (Bibby/Transmission Group, UK)

i)       JSE1-0237A Torque Limit Coupling

ii)      Torque from 493-3046 Nm adjustable

iii)     Maximum speed: 2800rpm

iv)    Maximum diameter of input shaft: 115mm

v)     Maximum diameter of output shaft: 85mm

f)      Vacuum system

i)       Two sets of Liquid-Ring Vacuum Pump

ii)      Suction capacity: max. 80M3/hr

iii)     Drive power: 2.35kw

g)     Electrical equipment and control cabinet

i)       Designed for 3*480V, 60 Hz

ii)      AC- Siemens Motor with 315kw at max. 1490 r/min

iii)     Control cabinet for the control of the SHJ-92 extruder and the Auxiliaries.

(1)   Main fuse-breaker: ABB, CE mark

(2)   AC Contactor: ABB products, CE mark

(3)   Control Button: Schneider product, CE mark

(4)   Display lights: Schneider product

(5)   Melt-Pressure Indicator: Dynisco 1290, CE mark

(6)   Pressure Transducer: Dynisco PT492, CE mark

(7)   AC inverter for Main motor: Schneider product, CE mark

(8)   AC inverter for feeder: Schneider product, CE mark

(9)   Siemens PLC and 10” touch panel

4)     Hydraulic continuous screen exchanger for SHJ-92

a)     Driven by hydraulic system

b)     Hydraulic unit pump: 2.2kw

c)     Max. pressure: 16Mpa

d)     Double piston continuous screen exchanger

e)     Each piston is with one screen.