material handling systems mhs. 2 material handling systems (mhs) material handling systems are an...

Material Handling Systems

MHS

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Material Handling Systems (MHS)

Material handling systems are an important part of an extrusion line. Their job is to transport the raw material from point A to point B.

“A chain is only as strong as ist weakest link“. That means, that if the transport system doesn‘t work properly, the extrusion line is unable to deliver the requested quality.

PROCESS CONTROL material handling systems are calculated by a simulation software. In this way we ensure to provide our customers with an economic and reliable solution.

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Material Handling Systems (MHS)

1) Standard, centralised MHS

2) Compact MHS with RX recievers and PCC-control „Vacu-Bloc“

3) Decentralised solution with RSD self conveying hopper loader

Different layouts:

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Material Handling Systems (MHS)

1) Standard, cetralised MHS

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Material Handling System MHS (flow sheet)

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Continuous run valve

Double-MM Vacuum Power Unit

SB Ring Blowers

Vakuum power units

VE Vakuum Pumps

A big variety of vacuum pumps are available. Please use the MHS data sheet to collect all necessary data for sizing the pump and the other components of the system

SB ring blowerwith control panel

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RN-Series Vacuum Reciever

Pellet Screen

(quick in/out)

Flapper

or

Swing Gate

Vacuum Connection

Material Inlet

Proximity Switch

Electric Connection Box

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RN-Series Vacuum Reciever

Special solution for regrind or other materials that intend to build bridges:

•Steep wall hopper

•Mechanical bridge breaker

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Sequenzing Panels

Different versions of sequenzing panels are available. Anyway it is very easy for the operator to activate/deactivate the individual

stations.

PCC-control panel“Vacu-Bloc”

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RDJ Dust Collector

RDJ dust collector as a central unit to•minimize labour costs for manual filter exchange and•downtimes of the line•cost saving for non recyclable filters at pump inlet

Self cleaning by inversion of air flow

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Compact Material Handling System

2) Compact MHS with RX recievers and PCC-control panel “VacuBloc”

a cost-effective alternative

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Compact Material Handling System: Components

• Vacuum power unit: SB ring blower or DO turbine

• RX vacuum recievers

• ”VacuBloc” multi vacuum control valve control

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Compact Material Handling System

Control panel

Vacuum power unit

RX vacuum recieverwith valve control

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Compact Material Handling Systems: examples

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Compact Material Handling Systems: examples

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Material Handling Systems (MHS)

3) RSD – Self Loading Vacuum Reciever

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RSD – Self Loading Vacuum Reciever

Conveying rate 350 kg/h at 3 m vertical and 3 m horizontal.

Pressure cleaning of security screen.

Maintenance-free; brushless, 3 stage turbine 1,1 kW

Noise level 72 dB(A) according to DIN 45635

Separation of particles from conveying air by cyclone principle

Stop of conveying cycle by proximity switch

Integrated control with alert (horn + light)

Option: Sight-glass

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RSD – Self Loading Vacuum Reciever

RSD can be mounted either on a GUARDIAN®-blender or an X-Series blender

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Calculation SheetPROCESS CONTROL GmbHIndustriestrasse 1563633 BirsteinGermany

Vacuum Conveying Calculations for PelletsWith Horsepower as a Variable

CUSTOMER:PC -Proposal

SPECS:

HORSEPOWER: 3,00KILOWATTS: 2,2

CONVEYING RATE: TUBE SIZE: 50,8 mm

NET REQUIRED: 500 kg/h AVG V': 2,97 m3/min

SAFETY MARGIN: 1,70 178,29 m3/h GROSS RATE: 850 kg/h FRIC. FACT: 0,255

kW USED: 2,20DISTANCES:

HORIZONTAL: 20 m RESULTS: VERTICAL: 5 m

NO OF ELLS: 3 mm Hg = 187,00AIR ONLY LENGTH: 15 m mbar = 254,32

AIR ONLY ELLS: 5 Max Rate = 995 kg/h@ FOR VEO3, 2.2 kW

Pump Max = 203,20 mm HgPump Max = 276,35 mbar

E1 = 1,80 % SAFETY = 8,66%E2 = 0,27 P Ratio = 1,33E3 = 0,75E4 = 12,00 ICFM = 106

SUM E = 14,81Code

MATERIAL LOSS = 50,73 Material line size: 50,8 mm 2,0 " CAIR LOSS = 45,39 Vacuum line size: 63,5 mm 2,5 " D

FILTER LOSS = 4,00TOTAL LOSS Area (Mat. line): 0,00172 m²

INCHES H2O = 100,12 Air speed (Mat. line): 28,8 m/s

Example07.000

PROCESS CONTROL GmbHIndustriestrasse 1563633 BirsteinGermany

Vacuum Conveying Calculations for PelletsWith Horsepower as a Variable

CUSTOMER:PC -Proposal

SPECS:

HORSEPOWER: 3,00KILOWATTS: 2,2

CONVEYING RATE: TUBE SIZE: 50,8 mm

NET REQUIRED: 500 kg/h AVG V': 2,97 m3/min

SAFETY MARGIN: 1,70 178,29 m3/h GROSS RATE: 850 kg/h FRIC. FACT: 0,255

kW USED: 2,20DISTANCES:

HORIZONTAL: 20 m RESULTS: VERTICAL: 5 m

NO OF ELLS: 4 mm Hg = 215,56AIR ONLY LENGTH: 15 m mbar = 293,16

AIR ONLY ELLS: 5 Max Rate = 763 kg/h@ FOR VEO3, 2.2 kW

Pump Max = 203,20 mm HgPump Max = 276,35 mbar

E1 = 1,80 % SAFETY = -5,73%E2 = 0,27 P Ratio = 1,39E3 = 0,75E4 = 16,00 ICFM = 112

SUM E = 18,81Code

MATERIAL LOSS = 64,43 Material line size: 50,8 mm 2,0 " CAIR LOSS = 46,98 Vacuum line size: 63,5 mm 2,5 " D

FILTER LOSS = 4,00TOTAL LOSS Area (Mat. line): 0,00172 m²

INCHES H2O = 115,42 Air speed (Mat. line): 28,8 m/s

Example07.000

The same system, but 4 instead of 3 elbows=> VE03 pump not sufficient

Pipe work with 3 elbows 90°=> VE03 pump O.K.

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It is necessary to know the number of elbows and the length of the tube system as detailed as possible because of their influence on the pressure loss and therefore the sioze of the vacuum pump.1 elbow = approx. 15 m of straight tube

Basics for calculation (friction in tubes)

Straight tube:only a few particles hit the inner wall of the tube

Elbow:Nearly all particles hit the inner wall of the tube. They are decelerated and have to be accelerated again, which results in a significant pressure loss (and in consequence a loss of energy)

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Data recording for preparing a quotation:

In this data sheet all necessary data concerning throughput and conveying distance are caught