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KY75 Co-Rotating Parallel Twin Screw Extruder Machine Group （L/D=40）

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KY75 Co-Rotating Parallel Twin Screw Extruder Machine Group （L/D=40）

Introduction

 

 

 

Materials To Be Produced: Pet Bottle Tablet Recycling

Capacity: 1000kg/Hr (Depends On The Formulation And Processing Tech)

Voltage: 380v – Frequency: 50hz

Voltage: 6kv – Frequency: 50hz(For Motor)

 

 

 

 

 

  Configuration of Equipment

1.Main Extruder Model KY75 (Twin Screw Extruder):

1.1 Main extruder is equipped with 1 set 900kw AC High-voltage motor, max output rotating speed 1200rpm , and WANNAN frequency inverter;

1.2 Twin screw speed reduction distribution gearbox 1 set(Germany FLENDER);

1.3 One Nylon Pin Coupling connector, to transfer the main power to the gearbox;

1.4 One set of loss weight main feeder with 3KW motor and WANNAN frequency inverter

1.5 One set of processing part: L/D ratio = 40:1, the barrels is bimetal integral alloy sleevet ; screw element: W6Mo5Cr4V2, through vacuum quenching, hardness HRC60-62;

1.6 One set of barrels temperature control system: two cooling water pipes. Cooling water pipes and joint are all of stainless steel; cooling barrels by soft water circulation, incl. heat exchanger, 1.5KW water pump, stainless steel external water tank;

1.7 One set of vacuum system incl. external stainless steel vacuum condensation pot and water ring vacuum pump, 4kw.

2. One set of under water pelletizing syestem;

3. One set of electric control system, instrument separated with the main extruder.

 

  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

  KY75 Co-Rotating Parallel Twin Screw Extruder


1.Main Motor：

1.1 Manufactured by WANNAN;

1.2 AC High-voltage motor, power 900KW,rpm 1500r/min;
 


2. Gearbox：Germany FLENDER

2.1 New structure gearbox, high torque, high speed, material of gearbox is QT450;

2.2 The gear accuracy is grade 6(Chinese standard), which is a high precision. High speed heavyduty 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.

2.5 The bearings and gears are forced to adopt the immersion oil-lubrication system. Oil pump motor power 1.5kW;


 

3. Loss Weight Feeder:

3.1 Twin screw volumetric feeder;AC motor, power 3kw;WANNAN inverter;

3.2 AC motor, power 3kw;

3.3 Stainless steel hopper


4. Screw Elements：

4.1 Kneading blocks are made by CNC machining center, same size for different batches, with good interchangeability and self-cleaning quality;

4.2 Involute gear teeth connection to ensure power flow between the screw shaft and screw elements;

4.3 Screw element diameter:71mm; L/D=40; numbers of barrels:10

4.4 Screw rotating speed: Max1200r/min.

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


5. Barrel：

5.1 The barrels are made by CNC machining center, the aligning pin and inner hole are completed by machining center in one time. Inner hole is grade 6, 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;

5.2 The barrels are equipped with stainless steel integral shielding which are secure, good-looking and power saving;

5.3 The barrels is bimetal integral alloy sleevet：HRC60-62;

5.4 The 2nd and 3rd barrels adopt cast-copper heaters and the rest are cast-aluminum heaters. All barrels use the soft water cooling.

5.5 The first ( 1) barrel is feed barrel, the fourth (4) is nature exhaust, the sixth(6) and eighth(8) are vacuum exhaust mouth and the tenth( 10) is extrusion barrel.
 

 

6. Barrel Temperature Control System：

6.1 Heating and cooling is controlled by temperature control meter through the solid-state relay or solenoid valve, thus form a closed-loop system to control the barrel temperature. The temperature control accuracy is ±2℃ ;water flow control : by use of stop valve;

6.2 Two cooling water pipes. All the cooling pipes, joints stainless steel; Soft water circulation system including heat exchangers, 1.5kw water pump, water tank body: stainless steel

 


7. Vacuum System:

7.1 External stainless steel vacuum condensation pot;

7.2 Water ring vacuum pump, motor power 4kw;
 


8. Hydraulic Screen Exchanger:

8.1 Plunger type;

8.2 Material: Alloy steel;

8.3 Hydraulic station motor power: 2.2kw.
 

 


  Auxiliary System

1.Hydraulic plate screen and driving valve(DV)

1.1 Hydraulic plate mesh structure; single plate double working position; nitrided steel material;

1.2 Automatic cutting valve assembly; heating plate heating, power 3KW;;

1.3 Shared hydraulic station, hydraulic pump power 5KW;

2. Underwater pelletizing head

2.1 Wear-resistant superhard alloy template, 42 holes;

2.2 Specially treated insulation mold( cemented carbide) and thermal equilibrium head;

2.3 Electromagnetic induction heating;

2.4 All stainless steel barrel structure cutting chamber.

3. Underwater pellletizer and shield:

3.1 The power of the cutting motor is 7.5Kw ,Maximum speed 2800rpm,Variable frequency speed control;

3.2 Horizontal knife rest frame, with movable support frame;

3.3 Disk type floating; self- correction die, knife gap adjustable;

3.4 Float self-centering multicut cutter and fine tuning feed knife rod;

3.5 SS material.

4. Dehydrator:

4.1 The power of the cutting motor is 7.5Kw;

4.2 SS integrated vertical welding structure with low noise and easy cleaning advantages;

4.3 Vertical SS water tank: 0.8m3,The power of centrifugal pump is 4kw;

4.4 Delivery piping system: SS304 piping

5. Complete underwater pelletizing system is controlled by PLC separately.
 

 


  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 380V.

Engineering Cases

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KY-65 Co- Rotating Parallel Twin Screw Extruder Machine Group （L/D=44）

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HKY-50 Underwater Pelletizing Extruder（L/D=44）

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