PP PLC 36 twin screw extruder machine twin screw extruder for
pelletised side feed Manufacturer
SHJ-65B/600-44-90-4P twin screw extruder
Twin screw host screw diameter: Ф62.3mm:
Ratio: L/D=44:1
Main machine screw speed: 50～600r/min;
Twin screw torque grade: T/A3=6.8N.m/cm3;
Screw outer diameter/inner diameter ratio: DO/Di=1.55;
Main motor power: 90kw (AC);
Total weight of the unit: ~4.5 tons;
Feeding system: (spherical)
Twin-screw main feeder, 1 set : (single-head non-meshing screw)
Feeding metering: volumetric metering
Feeding main motor :
Speed ratio:i=17
Power: 1.5kw, Songri inverter.
Feeder gearbox:Nanjing Yanwei
Radio:i=1.5.
Feeding screw
Material: High quality carbon steel.
Strictly control the curve during processing to ensure the
consistency of the spiral grooves, and the surface of the screw is
polished to achieve a mirror surface.
Make sure that the material does not stick to the screw, and
improve the uniformity of blanking.
Screw speed: 5～132rpm.
Feeding screw barrel:
Spiral barrel opening receiving box: connected with hopper with
horizontal stirring
Hopper: 120L
Hopper material: stainless steel.
AC main motor (AC motor in Anhui Wannan)
Rated power: 90kw;
Japan Songri inverter frequency control;
The technical performance meets the requirements of the
International Electrotechnical Commission IEC34-1 standard and the
national standard GB755; the corresponding use conditions are
--Altitude: ≤1000m;
--Ambient air temperature is not more than 40 ℃
-- The working environment should not have acid, alkali or other
gases that are corrosive to insulation;
--The motor is continuous duty (S1)
Safety Coupling:
The coupling between the output shaft of the main motor and the
input shaft of the gearbox adopts a safety coupling, which has the
safety function of overload protection. When the load exceeds the
set torque, it is overload protection.
Gearbox
Torque rating: T/A3= 6.8N.m/cm3
Screw speed: n=600rpm
Gear: Large-module meshing, 6-grade precision, gear shaft material
20CrNi2MoA, HRC58-65B.
Bearings: Needle roller bearings choose international professional
German "INA" bearings, and other bearings choose imported Japanese
"NSK" bearings.
Lubrication system:
The gear bearings are oil immersed in the transmission case.
Gear meshing and bearing points are equipped with shunt oil
pressure lubrication.
Lubrication cooling adopts external stainless steel plate cooler,
heat exchange area: 0.5 square meters.
Lubricating oil pump: Model VP0.55KW.
Lubricating oil model 150# gear oil.
This unit is equipped with gear oil
Barrel
The main cylinder is designed using the building block principle,
and each unit cylinder section has the same length and interface
form, so that the cylinder has a variety of combinations and good
interchangeability; all cylinder connections are reinforced design,
which can meet the requirements of high back pressure;
The length-diameter ratio of each section of the standard unit
cylinder is: L/D=44:1;
Each cylinder unit is equipped with an external electric heater
(except the feeding cylinder), and there is a water cooling
circulation channel inside, which can realize independent heating
and cooling of each cylinder unit
The first barrel is the feeding degassing
The 6 barrel is the vacuum degassing
The 10 barrel is the vacuum degassing
The 11 barrel is to extrude
The rest barrels are closed cylinders
Temperature control meter, Japan Omron all-digital dual-channel
intelligent high-precision meter;
There are 11 barrels in this project, including 1 main feeding
port, 1 vacuum port, and the rest are closed cylinders;
The barrel of this project is made of high-quality 45# steel as the
outer shell, and a-101 alloy bushing is inserted inside, so that
the water channel holes in the barrel are not rusted, which
prolongs the service life of the barrel water channel blockage;
All cylinders are produced by domestic first-class CNC machining
centers, with high manufacturing precision, ensuring stable
operation of equipment, small abnormal wear, and strong
interchangeability, so as to improve product quality and reduce
unit energy consumption of products.
The cylinder is equipped with a stainless steel overall protective
cover, which has the functions of heat insulation and safety
protection;
Screw shaft
The two screws rotate in parallel and in the same direction,
meshing with each other, with good self-cleaning performance and
narrow material residence time distribution; the screw is designed
based on the principle of combined building blocks, and has
conventional and special screw elements with different functions.
To meet the needs of many complex processes; Yanwei has rich
experience and outstanding technical advantages in the development
and design of screw configuration according to the ever-changing
material process requirements of different customers; the screw
configuration of this machine is based on the above-mentioned
material process requirements and output. optimized design;
The screw components are designed and manufactured with
self-developed software;
The screw element and the mandrel are connected by involute
splines, with high bearing capacity and convenient disassembly and
assembly;
The material of the screw mandrel is 40CrNiMoA forging;
The screw element is made of high-quality W6Mo5CR4V2 high-speed
tool steel, vacuum quenched, surface polished, and has strong wear
resistance;
The thread components are formed by special CNC thread grinding,
and the meshing components are all made by CNC machining center.
The three-dimensional meshing curve has high precision and high
interchangeability, which fully guarantees the accuracy
requirements of the design;
The screw element structure has the following characteristics:
Conveying elements: Conveying elements with different leads and
different rotations have different conveying, compression,
residence time and pressure building effects on the material;
Meshing elements: meshing elements with different angles, different
thicknesses and different numbers of sheets provide different
effects of shearing, mixing and staying for materials;
Machining roughness of screw elements Ra≤1.6μm;
Host electric heating
Host heating: The barrel is all made of cast copper and cast
aluminum heaters, with a total power of 35kw;
Host soft water cooling system
This unit includes a water cooling pipeline system installed on the
fuselage and an external circulating cooling water tank; according
to the needs of the temperature control of the cylinder, the
circulating cooling water automatically controls the cooling and
cooling of the over-temperature cylinder;
The circulating water pipeline system includes:
- Stainless steel inlet and outlet water mains;
- Water cooling branch pipes for inlet and outlet of each cylinder;
- Manual flow control valve;
- Self-control Italian CEME solenoid valve.
Technical data
| Internal circulating water | Boiler soft water (deionized water) is recommended |
| The maximum temperature of the inlet water of the inner circulation
cylinder | 65℃ |
| The maximum temperature of the return water of the inner
circulation cylinder | 100℃ |
| External circulating water | ordinary cooling water |
| External circulating cooling water temperature | ≤30℃ |
| 30℃ cooling water consumption | ≤4-10m3/h |
| Pump motor power | 0.55KW |
| Tank volume | 60 L |
| cooler | SL-415*1 set |
Vacuum exhaust:
Barrel vacuum position: Section 10 barrel.
Water ring vacuum pump:
The power is 2.2Kw, 380V/50Hz.
Model SK-0.8A.
Vacuum degree -0.07～-0.09Mpa.
Vacuum cylinder: volume: 30L.
Base
The base of SHJ65B twin-screw extruder adopts welded base, which
can effectively prevent strength and shock absorption.
Water cooling strands pelletizing auxiliary system
Degradable material dedicated flat strip pelletizer head.
Temperature control with water jacket
Material: 38CrMoALA, nitrided, hardness is HV950-1050, brittleness
grade II.
Heater: Cast copper heater
Die: 15 holes-φ3.0mm
Stainless steel water trough
Size: Length 5000mm
Material: Stainless steel.
Strip guide wheel: bracket stainless steel material, guide wheel
nylon.
Circulating water pipeline; water inlet 1/, equipped with ball
valve. The water outlet is 1.5/, equipped with a ball valve.
Sink bracket: 4# angle steel, the bracket is equipped with moving
pulleys for easy movement.
Dryer:
Power: 2.2kw, 380V/50Hz.
Wind body: material stainless steel.
LQ-300 Pelletizer:
Model: Gantry 300
Motor power: 5.5 kw
Speed regulation mode: frequency conversion speed regulation
Maximum output: 300KG/H
Moving knife material: carbide
300 vibrator:
The overall material is made of stainless steel, with three layers
of screening
Storage Silo
Volume 1.5 cubic meters
Conveying fan. 1 set of 4KW high pressure fan, equipped with 1
piece of Venturi tee, the pipe diameter is 133mm
Chain Control:
The main engine motor is provided with current overload and
electric control cabinet interlocking shutdown protection.
The host motor control system and the feeding motor control system
are provided with interlocking protection.
The transmission case and the lubrication system are interlocked
and protected.
Machine head pressure overload and electric control cabinet
interlock shutdown protection.
The main motor is connected with the nylon pin of the transmission
box to achieve the protection of the nylon pin that is cut off by
the torque overload.
Main components and brands:
The control system adopts Songri inverter.
Temperature control meter: Japan "OMRON" all-digital dual-channel
intelligent high-precision meter.
Various buttons, signal lights: Schneider brand.
Intermediate relay: Omron brand.
Motor switch, AC contactor, heating switch: Schneider brand.
Solenoid valve: Italian CEME brand.
Sensor: Xiaogan Heneng.
Main switch: Chint brand
Mould: 1 piece
Electrical Standard:
The standard is electrically manufactured according to the
JB/5420-2001 "Co-rotating Twin Screw Plastic Extruder" of the
Ministry of Machinery of China.
Compliant with CE standards.
Spare parts and tools, 1 set:
Screw assembly: 300mm (can be changed to customer-specified
specifications)
Asbestos gloves: 1 pair.
Exhaust Chamber "O" Ring: 2 pcs.
Box inlet seals: 2 sets
The tool box : 1 set tools.
Random data,1 set:
Unit installation manual.
Electrical automatic control system manual.
The main engine screw combination diagram.
Crew delivery list.
