Automatic Self Cleaning Back Flush Screen Changer for Plastic Recycling Granulation Extrusion Machine

Product Details
Plastic Processed: PP
Product Type: Granulating Extruder
Feeding Mode: One Feed
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  • Automatic Self Cleaning Back Flush Screen Changer for Plastic Recycling Granulation Extrusion Machine
  • Automatic Self Cleaning Back Flush Screen Changer for Plastic Recycling Granulation Extrusion Machine
  • Automatic Self Cleaning Back Flush Screen Changer for Plastic Recycling Granulation Extrusion Machine
  • Automatic Self Cleaning Back Flush Screen Changer for Plastic Recycling Granulation Extrusion Machine
  • Automatic Self Cleaning Back Flush Screen Changer for Plastic Recycling Granulation Extrusion Machine
  • Automatic Self Cleaning Back Flush Screen Changer for Plastic Recycling Granulation Extrusion Machine
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Basic Info.

Model NO.
GM-DP-BF series
Assembly Structure
Integral Type Extruder
Screw
Twin-Screw
Engagement System
Full Intermeshing
Screw Channel Structure
Deep Screw
Exhaust
Exhaust
Automation
Automatic
Computerized
Computerized
Belong to
Auxiliary Part of The Whole Extrusion Line
Function
Pelletizing Line/Granules Making Machine
Application
TPU ,PA,POM,PMMA Reaction Extrusion
Transport Package
Sea Worthy Packaging
Specification
CE, SGS
Trademark
Gmach
Origin
Zhengzhou
Production Capacity
200 Sets/Year

Product Description


Automatic self cleaning back flush screen changer for plastic recycling granulation extrusion machine 


In order to considerably increase the lifetime of the filter media GMACH offers automatic backflush screen changers.
 
Working principle (backflush process)of this  double piston backflush screen changer with 4 screen cavities fortwin screw extruder
 Automatic self cleaning backflush screen changer for PET recycling granule extruding machine



These systems work as follows: When a pre-defined pollution degree is reached, the backflushing automatically starts.
Then the contaminations from the screen pack are led out of the machine via a spillway. The contaminated backflush mass leaves the machine by means of heated backflush outlet pipes which are installed at the screen changer housing. There the small quantity may be removed or collected.

With the-channel screen changers additional slide valves are used at the backflush channels. There is no interference of the process during backflushing.
 Automatic Self Cleaning Back Flush Screen Changer for Plastic Recycling Granulation Extrusion Machine
Automatic Self Cleaning Back Flush Screen Changer for Plastic Recycling Granulation Extrusion Machine
Automatic Self Cleaning Back Flush Screen Changer for Plastic Recycling Granulation Extrusion Machine

Features included
1,Continuously working melt filter
2,Four working stations 
3,venting groove can discharge the gas mixed in the raw material 
4, no interference during the process of backflushing
5,the screen cleaning reached 85%
6, long life span of the filtration screen pack/mesh , it owning to up to 100 times backflushing at most.
screen change proces
The screen changer and gas venting process of this kind of   Automatic backflush screen changer with four working positions for plastic extrusion machine
The following process is based on standing face to the screen changer and extruder
one rod is pushed out on the left side of the housing of the screen changer by hydraulically
the blocked filter screen pack is removed and replaced by a fresh one
the rod is pushed into the housing of the screen changer
this rod is pushed out on the rignht side of the housing of the screen changer by hydraulically.
the other one blocked filter screen pack on this rod is removed and replaced by a fresh one.
the other rods repeat the above steps
The gas venting systen begins to work when the rod is pushed into the housing of the screen changer, and the following picture show the process of gas venting of this type of dual rods continuous extrusion screen changer for polymer melt filtration.


Main application fields of    Automatic backflush screen changer with four working positions for plastic extrusion machine
for compounding, semi-finished production, recycling, manufacturing of fibers, polymerization, film extrusion
for fully automatic production processes
Technical data


Type


ScreenD&A
 

Over all dimension


Heating power
(KW))


Output
(kg/h)

 

Dia(mm)

Filtration area(C)

L1

L2

L3

 

 

GM-DP-BF-120

100

78x4

220

180

1160

2.4/3.2

260-760

GM-DP-BF-135

115

104x4

250

205

1280

3.5/4.7

400-1100

GM-DP-BF-155

135

143x4

270

225

1420

5.0/7.2

600-1400

GM-DP-BF-160

145

165x4

310

260

1600

8.2/11.1

800-2000

GM-DP-BF-170

150

177x4

370

310

1750

9.4/12.7

1350-3000

GM-DP-BF-195

175

240x4

380

320

1900

10.2/13.8

1600-3800

GM-DP-BF-220

200

314x4

410

350

2100

13/17.5

1800-4500

GM-DP-BF-250

230

415x4

460

405

2760

15/21.5

2000-5000

 

 

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