Continuous Mixer
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Continuous Mixer

Dual-rotor continuous mixer and co-rotating twin-screw extruder are part of modernized, sophisticated and efficient compounding equipment. In plastic and rubber compounding and modification sector, each of the two has its advantages and coexists complementarily.

Features and Advantages

 

● The continuous mixer is composed of non-meshing twin-screw intake part, dual-rotor compounding section and twin-screw outtake part, in which the dual-rotor structure similar to that of banbury is optimized to fully realize such technical processes as plasticization, melting, rolling, shearing and compounding of the high polymer systems.


● Differing from co-rotating twin-screw, dual-rotor is of non-meshing high-speed counter-rotation, set with material outtake pressure-regulating apparatus, it substantially increases material residence time, filling degree and mixing degree. With such features and advantages as higher operation flexibility, high efficiency and energy-saving, it gives fuller compounding and dispersion a quality guarantee.


● Compared with twin-screw, it owns larger working volume, more tolerable and adaptable to material sizes(fluffy or massive)


● Adopting newly lengthened dual-rotor design, it largely intensifies degassing and compounding effect and ranges of application as well.


● Various types of rotor structure, joined with changeable embedded barrel are able to realize main machine essential structure parameters changeability and flexible adjustment, thus meeting different material processing needs.


● The main machine is in split structure, easy for clearance, maintenance and material changing.


● The stress rigidity of rotor pair strengthened by structure support at both ends does avoid the direct friction and pointless wear and tear occurred in between screw and barrel of twin-screw extruder.
 

Principle and Structure

 

While maintaining the excellent mixing performance and operation flexibility of the traditional internal mixer, automation, continuity and sealing of the mixing process are realized. The equipment and process have completed a "quality" upgrade, providing a wider choice to meet the needs of modern new technological processes.


Two-stage configuration: The first stage is the double-rotor continuous mixer, which realizes the core processes such as plasticization and mixing of polymer materialsthe. The second stage is the single-screw extruder, which realizes the pressure-building and extrusion function of the material. The two stages are usually arranged coaxially up and down, occupying a compact area and having a reasonable layout.

 

Process Flow Chart

 

1. feeding system          2. dual-rotor continuous mixer          3. single screw extruder          4. air cooling die face hot pelletizer          5. conveying blower          6. cyclone separator          7. cooling elevator          8. product silo          9. packing machine

 

Typical Work and Application

 

High filling modification, filling master batch, special master batch, functional master batch, highly concentrated master batch, carbon black master batch, flame retardant master batch, shield material, elastomer and plastic rubber etc.

Type

Dual-rotor mixer

Single screw extruder

Capacity

(kg/h)

Rotor nominal diameter (mm)

Rotor L/D

Rotor Max. speed (rpm)

Main motor power (kw)

Screw diameter (mm)

Screw Max. rotating speed (rpm)

Motor power (kw)

CM-50/SE100

50

10

1000

45

100

95

30/45

60~150

CM-75/SE120

75

10

800

75/90

100/120

120

45/55

150~450

CM-100/SE150

100

10

600

132/160

150/180

120

75/90

300~800

CM-130/SE180

130

10

600

185/200

180/200

100

90/110

650~1500

CM-150/SE250

150

10

500

200/250

250/280

95

132/160

1500~2000

CM-175/SE280

175

10

500

280/315

280/330

95

185/200

2000~3000

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