The standard single-idler belt weigher comprises: ▫ Weighing module or platform for accommodating user´s idler set. ▫ Overload-protected load cell(s)with high
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MULTIBELT ® Single -Idler Belt Weighers Continuous bulk solids measurement in belt conveyor sy stems Suitable for flow rates up to 15,000 t/h Accuracy up to ±0.5 % Also legal -for -trade -version Simple and quick installation Type BEM Œ designed modu larly, suitable for any belt width Types BEP/BED Œ weighing platforms, suitable for IEC belt widths Suitable for use in ATEX explosion -zones Application Single -Idler Belt Weighers are used for continuous acquisition of flow rates and totalized amounts. They are espe- cially designed for integration into contin uously operating belt conveyors enabling accu -racies of up to ± 0.5 % to be achieved. They can be employed for a whole variety of tasks: Throughput and consumption measurement in production plants Acc ountability of stored and re- trieved amounts Load limit alarm Batching, in load -out stations Legal-for -trade weighing Prefeeder control. Their rugged design ensures a highde -gree of reliability and availability. We have the right Belt Weigher for every Belt Conveyor. For Multi -Idler Belt Weighers designed for higher ac curacies, see separate Spec Sheet BV-D2050. Construction The standard single -idler belt weigher comprises: Weighing module or platform for ac commodating user´s idler set Overload -protected loa d cell(s)with high degree of protection Cable junction box for connection of sensors, and All fixing elements required for mounting. For speed measurement, various speed transducers e.g. friction wheel tachom eters, are available as options. Operating Principle Belt Weighers are used to measure cont inuous material flows of varying amounts. Load cells acquire the weight of load on particular belt sections. A speed tran s-ducer measures the belt speed. The product of these two variables is the current flow rate. Integration of flow rate determines the totalized amount of mater ial. If belt weighers are not equipped with speed measurement system, belt speed is not acquired. In the secases, weighing electronics use the constant speed value set by parameter. How ev er, this method can adversely affect the accuracy. BV-D2049GB BED BEM BEP
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Dimensions [mm] Single -Idler Belt Weigher BED 111 B3190Min 50 / Max 90 120Min 10 0 / M ax 15 0800 L 1250 800 L 1250 800 L 1250 450 55 824.5 200-300 Wirksame Brückenlänge Option CBAL 1000 L 1000 200 – 300 1060 Option AB280280Single -Idler Belt Weigher BEM Single -Idler Belt Weigher BEP Effective plattform length Effective plattform length Single -Idler Belt Weigher BED
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Dimensions [mm] MULT IBELT Dimensions [mm] BEM Measure B Belt width 400 500 650 800 1000 1200 1400 BEP Measure A 700 800 950 1150 1350 1600 1800 Measure B Belt width 400 500 650 800 1000 1200 1400 Measure C 440 440 440 740 740 740 740 BED Measure A 2050 2250 2500 Measure B Belt width 1600 1800 2000 Technical Data MULT IBELT Single -Idler Belt Weighers Accuracy without speed measuremen t system only achie vable at constant speed Flow rate Weight Belt Speed Belt Rise BEM ±1,0 % of nominal flow rate to ca. 4.000 t/h 60 kg to ca. 6 m/s ~ 20° (No relative material mov ement) BEP ±0,5 % of nominal flow rate to ca. 6.000 t/h 100 kg ±1 ,0 % of actual flow rate BED ±0,5 % of nominal flow rate to ca. 15.000 t/h 300 kg ±1,0 % of actual flow rate Accuracy Specified accuracies refer either to nominal (maximum) flow rate or to th e corresponding actual flow rate in the ra nge of 20 to 100 %. Specified accuracies assume that the variant is installed in a suitable belt conveyor and that the measu ring station is installed and calibra ted in acco rdance with our install ation and calibration instruct ions. For optimum planning -in of your belt weigher(s), see Spec Sheet BVR2220 ‚Recommendations for en sure proper functioning and high acc uracy ‘. Special Requirements Should you have special require- ments, e.g. – Legal-for -trade variants – Belt speed out of specified range – Meter for varying belt angle – Prefeeder control – Flow rates exceeding 15,000 t/h – Higher accuracies – Special belt widths – Special belt conveyors, please let us know. Ordering Data For us to be able to handle your o r-der smoothly and quickly, please let us have the data b elow in add ition to the ordering number: B elt width [mm] Flow rate [t/h] Belt rise [°] Belt speed [m/s] Accuracy [%] Nominal flow rate ( ) Actual flow rate ( )
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Single -Idler Belt Weigher Variants BEM 400 – 1400 Belt weigher of modular design, belt widths from 400 – 1400 mm BEP 400 – 1400 Belt weigher with weighing platform, IEC -belt widths from 400 – 1400 mm BED 1600 – 2000 Belt weigher with weighing platform, IEC -belt widths from 1600 – 2000 mm Options FGA 24 A Œ Speed measurement system, Namur sw itch with perforated disc FGA 20 RS LE – Speed measurement system for belt speeds up to 3.5 m/s; friction wheel with rocker and support FGA 30 R2 – Speed measurement system for belt speeds up to 3.5 m/s; friction wheel, enclosed casing, rocker and su pport FGA 30 R2 K – Speed measurement system for belt speeds from 3.5 m/s onward, with coupling for conne c-tion to shaft end FGA 53 K – Speed measureme nt system for belt speeds from 0 .1 m/s onward, with coupling for connection to shaft end Schenck Process GmbH Pallaswiesenstr. 100 64293 Darmstadt, Germany Phone: +49 6151 1531 -1216 Fax: +49 6151 1531 -1172 sales@schenckprocess.com www.schenckprocess.com BV-D2049GB 1 423 All informa tion is given without obligation. All specifications are subject to change. © by Schenck Pro cess GmbH, 201 4
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MULTIBELT® Multi-Idler Belt Weighers Continuous bulk solids measurement in belt conveyor systems Suitable for flow rates up to 20,000 t/h Accuracy up to ±0.25 % Also legal-for-trade-version Suitable for IEC belt widths Suitable for use in ATEX explosion-zones Application Multi-Idler Belt Weighers are used for continuous acquisition of flow rates and totalized amounts. They are es- pecially designed for integration into continuously operating belt convey- ors and enable accuracies of up to ±0.25 % to be achieved.They can be employed for a whole variety of tasks: Throughput and consumption measurement in production plants Accountability of stored and re- trieved amounts Load limit alarm Batching, in load-out stations Legal-for-trade weighing Prefeeder control. Their rugged design ensures a highde- gree of reliability and availability. Our product range is as varied as the demands of our customers. For Single- Idler Belt Weighers, see separate Spec Sheet BV-D 2049. Construction The standard Multi-Idler belt weigher comprises: Weighing platform for accommo- dating user´s idler sets Overload-protected load cell(s)with high degree of protection Cable junction box forconnection of sensors, and All fixing elements required for mounting. For speed measurement, various speed transducers e.g. friction wheel tachometers, are available as options. Operating Principle Belt Weighers are used to acquire con- tinuous material flows of varying amounts. Load cells acquire the weight of load on particular belt sections. The longer the belt section is, the less the measuring result is affected by exter- nal influences. In addition to belt load acquired by load cells, belt speed is measured by a speed transducer. The product of these two variables is the current flow rate. Integration of flow rate determines the totalized amount of material BV-D2050GB BMP BMC
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Dimensions [mm] Dual-Idler Belt Wei gher 2 BMP 2 BMP weighing stations arranged one after the other to achieve higher accuracies (Weighing station dimensions are the same as those of the BMP weighing stations) Effective plattform length 4 m standard platform length. 6 m also possible. Multi-Idler Belt Weigher BMC Effective plattform length Tension-compression tie-rod (500 mm long). Load cell mount Dual-Idler Belt Wei gher BMP 2 weighing stations arranged side by side for belt widths from 1600 mm Effective plattform length
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Multi-Idler Belt Weigher Variants BMP 500 – 2000 Belt weigher with weighing platform, IEC belt widths from 500 to 2000 mm 2 BMP 500 – 1400 Belt weigher with weighing platform, IEC belt widths from 500 to 1400 mm BMC 500 – 2000 Belt weigher with weighing platform, IEC belt widths from 500 to 2000 mm Options FGA 24 A Œ Speed measurement system, Namur switch with perforated disc FGA 20 RSLE – Speed measurement system; friction wheel with rocker and support FGA 20 RSLE-VA – Speed measurement system for belt speeds up to 3.5 m/s; friction wheel with rocker and support in stainless steel design FGA 30 R2 – Speed measurement system for belt speeds up to 3.5 m/s; friction wheel, enclosed casing, rocker and support FGA 53 K – Speed measurement system for belt speeds from 3.5 m/s onward, with coupling for connection to shaft end Schenck Process GmbH Pallaswiesenstr. 100 64293 Darmstadt, Germany T +49 6151 1531-1216 F +49 6151 1531-1172 sales@schenckprocess.com www.schenckprocess.com BV-D2050GB 1212 All information is gi ven without obligation. All specifications are subject to change. © by Schenck Process GmbH, 2012
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Speed Sensor FGA 20RSLE Cost-efficient integration High reliability Maintenance -free storage and sealings Easy handling Completely made of galva nized steel or stainless steel Legal-for -trade variant for MULTIBELT ®-type belt weighers ATEX optional category 2GD (z ones 21, 22, 1 or 2 ) Application The FGA 20RSLE speed sensors are designed for measuring the belt speed of belt conveyor systems. They are used as optional equipment for MULTIBELT ®-type belt weighers. A customized speed sensor can be used in ATEX zones 21, 22, 1 or 2. Design The speed sensor consists of a rocker that can be pivoted around an axis. The axis is mounted in a bracket that is attached to the machine (belt conveyor) to be monitored. The measuring wheel is attached to this rocker and runs slip -free on the belt to be measured. The belt speed is measured as a frequency signal through windows in the measuring wheel and with one or two (legal -for -trade) proximity sensor /s and processed using an evaluation device. The FGA 20RSLE speed sensor is manufactured entirely of a highly corrosion -resistant galvanized steel and in the ATEX Œ certified model made of 1.4301 stainless steel. Function The pulse wheel runs on the interior of the empty, returning belt of a belt feeder system with a rubber ring. Under its own weight, the wheel is friction -locked against the belt and is made to rotate by the belt movement. The non -slip moti on means that the wheel circumferential velocity corresponds to the belt speed. The rotational speed of the wheel is registered by a sensor that records the speed by means of transmitting a signal through an alternating series of windows and bars, recording a frequency that corresponds to the belt speed of the belt conveyor system. This frequency is transmitted to the evaluation electronics where it is analyzed. BV-D2231GB
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Dimensions [mm] Operating temperature -20 °C – + 50 °C Operating temperature, ATEX -20 °C – + 50 °C Belt speed < 3.5 m/s Pulses 20 pulses per revolution = 33.5 pulses per meter of belt Output signal Namur Weight 4.55 kg Legal -for -trade type 2 proximity sensors ATEX (o ption ) Zone 21, 22, 1 or 2 Installation of the FGA 20RSLE BV-D2231GB 1703 All information is given without obligation. All specifications are subject to change. © by Schenck Process Europe GmbH, 20 17 Schenck Process Europe GmbH Pallaswiesenstr. 100 64293 Darmstadt, Germany T +49 6151 1531 -0 F +49 6151 1531 -66 sales@schenckprocess.com www.schenckprocess.com
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Speed Sensor FGA 30R2 Application FGA 30R2 speed sensors are designed for measuring the belt speed of belt conveyor systems. They are used as optional equipment for MULTIBELT ®-type belt weighers. A customized speed sensor can be used in ATEX zones 21, 22, 1 or 2. Equipment The speed sensor consists of a hou s-ing w ith an internal impulse wheel mounted on a drive shaft. The angular velocity of the shaft is measured as a frequency signal through windows in the measuring wheel and with one or two (legal -for -trade) proximity sensor /s and processed using an evaluation device. The FGA 30R2 speed sensor is made entirely of steel with a powder -coated surface. The FGA 30R2 can be fitted with a rocker and a friction wheel for use as a friction wheel speedometer for registering the speed of the return- ing belt. Alternatively, with a coupling the FGA 30R2 can be run by e.g. the tail pulley of a belt feeder system. Function If operated as a friction wheel speed- ometer: The friction wheel runs on the interior of the empty, returning belt of a belt feeder system with a rubber ring. Under its own weight, the wheel is friction -locked against the belt and is made to rotate by the belt movement. The non -slip motion means that the wheel circumferential velocity corre- sponds to the belt speed. The rota- tional speed of the wheel is registered by a sensor that records the speed by means of transmitting a signal through an alternating series of windows and bars, recording a frequency that corre- sponds to the belt speed of the belt feeder system. This frequen cy is transmitted to the evaluation electron- ics where it is analyzed. High degree of reliability Robust design Maintenance -free storage and seals Made completely from steel Legal -for -trade variant for MULTIBELT -type belt weighers Designed for operation with friction wheel and rocker Drive system with coupling available Successor to the FGA 30R with identical connection dimensions ATEX optional category 2GD (Zone 21, 22, 1 or 2) BV-D2335GB
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