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KY-60 Co-Rotating Parallel Twin Screw Extruder Machine Group （L/D=44）

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KY-60 Co-Rotating Parallel Twin Screw Extruder Machine Group （L/D=44）

Introduction

 

KY-60 Co-Rotating Parallel Twin Screw Extruder Machine Group （L/D=44）

Materials To Be Processed: Pib 60%+ PE LLDPE 40% Pulverise Powder

Capacity: 150-200kg/hr Depends On Formulation & Process

440 Volts, 50Hz, 3 PH

 

 

 

  Configuration of Equipment

1. Feeding System:

Twin screw volumetric feeder, AC motor of 1.1kW, equipped with INVOVANCE frequency inverter.

2. Main Extruder Model KY-60 (Twin Screw Extruder):

1.1. Main extruder equipped with AC motor of 75kW, Max speed 600rpm, equipped with INVOVANCE frequency inverter for speed regulation system.

1.2. New generation twin screw speed reduction distribution gearbox, 1 set.

1.3. Nylon Pin Coupling, 1 set, to transfer main power to the gearbox.

1.4. One suit of processing part: L/D ratio = 44:1, the barrels lined with bimetallic alloy cover set. Screw element material W6Mo5Cr4V2, vacuum quenching, HRC60-62.

1.5. One suit of barrels temperature control system: two pieces of cooling water pipes. Cooling water pipes & joints are of stainless steel. Cooling barrels with soft water circulation, including heat exchanger, water pump, 0.75kW . Stainless external water box for water cooling.

1.6. One suit of vacuum system, including external stainless vacuum condensation pot, and water ring vacuum pump, 1.5kW.

3. One set of electrical automatic control system with electrical instruments, separate from the main extruder.

4. One suit of hydraulic screen exchanger, including hydraulic station.

5. One suit of water ring pelletizing auxiliary equipment.

 

  Delivery

45 days after receiving the advanced payment. Delivery after acceptance inspection by the Buyer.

 

  Payment Terms

The contract becomes effective after 30% advance payment;

Balance be paid after equipment inspection and before shipment;

Technical Parameters

  KY-60 Co-Rotating Parallel Twin Screw Extruder


1. Main Motor:

1.1 Manufactured by Wan'nan Motor Factory.

1.2 AC motor, power of 75KW, speed of 1,480r/min.

1.3 Cooling mode: fan cooling. Environment temperature≦40℃,Install Height≦1000m.
 


2. Gearbox:

2.1 New structure gearbox, high torque & high speed, gearbox body material is QT450,

2.2 The gear is 6 grade which is a high precision & high speed overloading hard-tooth surface. The materials are 20CrNi2MoA and 20CrMnMo,carburizing heat treatment of gears HRC60-62,

2.3 Involute gear teeth couplings between the output shafts and screw shafts,

2.4 Use imported brand bearings. Integrated thrust bearing assembly is Name Luoyang.

2.5 The bearing and gears are forced to adopt the immersion oil-lubrication system. Oil pump motor power 0.55kW,

2.6 Skeleton oil seal adopt Taiwan Hansheng brand,

2.7 Tubular condenser, cooling area of 1.8 square meters,
 


3. Screw Elements:

3.1 Kneading blocks machined by CNC, accurate to offer interchangeability, with self-cleaning feature.

3.2 Involute gear teeth connection to ensure power flow between the screw shaft and screw elements.

3.3 Screw element diameter 59.5mm, L/D ratio=44, numbers of barrels:11

3.4 Screw rotating speed: 600r/min.

3.5 Material of screw element: W6Mo5Cr4V2, Hardness: HRC60-62.
 


4. Barrel:

4.1 The barrels machined by CNC machining center, aligning pin & inner hole are completed by machining center in one time. Inner hole is 6 grade which is a high precision. After assembly, the concentricity error is 0.05mm, thus greatly enhance the self-cleaning of screw and reduce energy consumption.

4.2 The barrels are equipped with stainless steel integral shielding which are secure, good-looking and power frugal.

4.3 The barrels are produced with bimetallic alloy cover:HRC60-62.

4.4 The 2nd and 3rd barrels adopt cast-copper heaters. Other barrels adopt cast-aluminum heaters. The barrels use soft water cooling.

4.5 barrel #1 is feed barrel, barrel #6 is nature exhaust barre, barrel #10 has vacuum exhaust mouth, #11 is extrusion barrel.
 

 

5. Barrel Temperature Control System:

5.1 Heating and cooling is controlled by temperature control meter through the solid state relay or electromagnetic valve, thus form a closed-loop system to control the barrel temperature. The temperature control accuracy is ±2℃ and control the flow by stop valve.

5.2 Two cooling water pipes. All the cooling pipes and joints are of stainless steel. Soft water circulation system, including heat exchangers, 0.75kW water pump, stainless steel external tank.

 

6. Vacuum System:

6.1 External stainless steel vacuum condensation pot.

6.2 Water ring vacuum pump, motor power 1.5kW.


7. Hydraulic Screen Exchanger:

7.1 Piston type hydraulic screen exchanger, single column double service position, including hydraulic station.

7.2 Cooling seal water channel within the shell, equipped with cast-copper heaters.
 

 


  Auxiliary system

1. Extrusion Head:

1.1 Alloy steel head body

1.2 Nitrided steel concentric plate 60 holes,diameter 2.8mm

1.3 Cutter number, 4

2. Water Ring Cover:

2.1 Stainless steel drum water ring cover

2.2 Stainless steel joint basin


3. Hot-Cut Pelletizing System:

3.1 Strand pelletizer, motor power: 1.5kW

3.2 Pelletizer car with guide rail

3.3 Equipped with INVOVANCE frequency inverter
 

4. Dewaterer Equipment:

4.1 Vertical centrifugal dewater 5.5kW

4.2 With little cyclone

4.3 Stainless rotor and stator, stainless body


5. Vibration Screen:

5.1 Material contact surface is of stainless steel material

5.2 Max capacity 300kg/h
 

 


  Electrical Instruments Control System

 

1.Control instruments adopt the following brands:

1.1 Temperature control meter: omron;

1.2 Main extruder Frequency Inverter: YASKAWA;

1.3 Feeder frequency inverter: YASKAWA;

1.4 Main control switch: LG;

1.5 Low-voltage electric elements: Schneider;

1.6 Cooling electromagnetic valve: CEME;

1.7 AC contactor: Schneider;

2. General interlock and alarming:

2.1 The interlock protect of oil pump and main extruder;

2.2 Over-electric current, over-pressure alarming, emergency stop protection;

2.3 Main extruder fault alarming, emergency stop protection;

3. General illuminated button indicate switches:

3.1 Emergency stop switches;

3.2 Alarming reset;

3.3 Main motor start;

3.4 Main motor stop;

3.5 feeder start;

3.6 feeder stop;

3.7 Oil pump start;

3.8 Oil pump stop;

3.9 Water pump start;

3.10 Water pump stop;

3.11 Vacuum pump start;

3.12 Vacuum pump stop;

4. LED Indicator:

4.1 Power LED;

4.2 Main extruder fault LED indicator;

4.3 Main extruder over-electric current LED indicator;

4.4 Main extruder over-pressure LED indicator.

5. Digital display and controller:

5.1 Temperature control of all sections;

5.2 Temperature control of extruder head;

5.3 Main motor electric current;

5.4 Rotating speed of main extruder and feeder;

5.5 Melt temperature;

5.6 Melt pressure.

The Above Configuration Power Voltage Only Confine To Standard Power Supply 440v 50hz.

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