Material Handling Systems MHS
Dec 24, 2015
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