I, Overview:

This equipment uses polypropylene melt blown raw materials as the main raw materials, supplemented by additives such as electrostatic auxiliary master batch or color master batch, to produce polypropylene melt blown nonwoven fabrics with different colors, different properties and suitable for different uses.

1. Conditions of use

380V/50Hz

2. Product application

Melt blown filter materials, mask filter materials

3. Materials used

Polypropylene chip raw materials (special materials for melt blowing)

MFI=1200~1800 g/min

Recommended 1500g/min

4. Product width

1600mm

5. Product weight range

25-80g/m2

6. Extrusion ability

1–1.5 tons/24 hours

(As the product weight changes, the production line capacity changes accordingly)

7. Maximum mechanical speed

0-50m/min

8. Fiber fineness

2-5μm

9. Installed power

About 560KW

II, Equipment list

1. Automatic feeding device

1 set

2. Screw extruder

1 set

3. Screen changer

1 set

4. Metering pump

1 set

5. Melt pipeline

1 set

6. Combined melt blown die head

1 set

7. Process hot air system

1 set

8. Air heater

1 set

9. Suction fan

1 set

10. Connect the air duct

1 set

11. Net forming machine

1 set

12. Electret processing system

1 set

13. Winder

1 set

14. Electrical control system

1 set

III,  Detailed technical configuration

1. Automatic batching and feeding device

Raw material temperature

All raw materials are below 80 degrees

Raw material properties

All raw materials are granular

Installation location

Above the discharge opening of the extruder

Matching ability

Component 1: 100%

Component 2: 1~50%

Component 3: 0.5~3%

Vacuum feeding system

1 set

2. Screw extruder

Screw barrel

Material

38CrMoAl

Nit riding depth

0.5-0.7mm

Screw hardness

HV>=740

Barrel hardness

HV>=940

Aspect ratio L/D

30:1

Screw diameter

90mm

Barrel heating area

District 5

Total heating power

About 35KW

way to heat up

Cast aluminum heating

Transmission

Motor

AC motor

Motor Power

45KW

Reducer

Cabinet material

QT200

Gear form

helical gear

Gear material

20CrMnTi

Gear surface heat treatment

Tooth surface quenching

Thrust bearings

Domestic high-quality bearings

Lubrication system

Pressure lubrication system

cooling system

Internal cooling and forced circulation cooling

Rotating speed

20-80r/min

Insulation cover outside the barrel

3 、Net changer

structure type

Double station column type net changer

Screen change driver

Hydraulic system drive, manual control

way to heat up

Built-in heating rod heating

Temperature measurement

K type thermocouple

Pressure Sensor

Equipped with a pressure sensor in front of the net changer to display the pressure of the extruder

4、Metering pumps

Specification

120CC

motor

Frequency conversion motor

speed control

Frequency converter

Drive motor power

3 KW

way to heat up

Built-in stainless steel heating rod for heating

Pressure measurement

The melt metering pump is equipped with a pressure sensor in front of it to control the speed of the extruder to maintain the stability of the extrusion volume; the metering pump is equipped with a pressure sensor to display the output pressure

5 、Melt pipe

Material

Seamless stainless steel pipe

Way to heat up

Heating with heating ring

 6 、Combined melt blown die head and spinneret

Total length of phantom

1940mm

Effective discharge length of die head

1702mm

heating power

Around 16KW

Spindle hole diameter

0.20-0.30mm

Spindle hole length to diameter ratio

10：1

Number of spinnerets

1 set

The spinneret transforms the solution into a fine stream, which is formed into ultra-fine fibers after being drawn by a high-temperature high-speed air stream

7 、Process hot air system

Roots blower model

3L53WC

Boost

70Kpa

Import flow

38.3m3/min

power

75KW

Roots blower

Provide high-pressure air to make the speed of drafting air reach the technological requirements

Through the frequency converter, the air flow output by the Roots blower can be easily changed through the inverter.

8 、Air heater

heating power

230KW

Material of pipeline

stainless steel

Insulation form

Outsourcing insulation

Air heating tank

Heat the air output from the Roots blower to reach the temperature required by the process

9 、Suction fan

Suction air volume

17000-30000m3/min

Wind pressure

3KPa

power

55KW

10 、Connect duct

Material

Galvanized air duct

11  、 Net forming machine

Line speed

0-50m/min

Net curtain material

PA material

Mesh belt width

1500mm

Spinning distance adjustment

80-300mm

Installation form

Horizontal movement

Drive rate

5.5KW

12 、Electret processing equipment

Input voltage

220V/50HZ

Maximum output voltage

80KV

Processing width

1300mm

13  、Winder

Line speed

0-50m/min

Trimming device

8 round tools

transmission

Motor

Power

7.5KW

Shafts

Paper tube core 3 inches

14 、Electrical control system

Operation screen

Siemens Brand

PLC

Siemens Brand

Frequency converter

ABB brand

Contactor

Siemens Brand

Relay

Omron brand

Low voltage circuit breaker

ABB or LS, Chint brand

air switch

Schneider or ABB, LS brand

Button and switch indicator

Schneider