Weigh Feeder
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Movement of bulk material is an essential feature in modern industrial processes. The simplest and fastest mode of transportation of such material is to convey them over a moving belt. In this operation the precise weighing of material, as it moves, has assumed a key role in process industries. Hence weigh feeder is a closed loop control system in which a precise control can be had over the flow of materials, which has indicating, totalizing and controlling instruments and circuits. The Weigh Feeder is a custom engineered equipment that finds application in continuous bulk proportioning of solids. This gravimetric feeder is operated by a closed loop control system enabling feeding at a controlled rate and exercises precise control over rate of flow based on a micro controller. The system is capable of accepting external signals from other controllers or from the process computer, depending on the extent of plant instrumentation. These gravimetric feeders are in operation in steel, cement, fertilizer and chemical industries. Each system consists of control and local panels, load cells to measure the instantaneous load, a digital tacho to sense the speed of the belt and a belt feeder conveyor shaft is driven by an AC motor coupled through the gear box.
weigh feeders
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Loss in-Weigh Feeders operate on the principle of controlled loss-in-weight. The proposed system comprises of a Weigh Hopper, Loadcells, Screw Conveyor with motor and associated control electronics. The Weigh Hopper and Screw Conveyor are mounted on 3 Nos. of Loadcells. The Loadcells are connected to a controller through a junction box. The material from the storage hopper is fed to the weigh hopper, which is controlled by a gate. A small screw feeder is mounted below this weigh hopper. The weigh hopper and screw feeder are mounted on high precision Loadcells and the output of the Loadcells are summed in a junction box and fed as an analog input to the controller. The controller calculates the rate, compares with the set rate and feeds the corresponding 4-20mA signal to the VVVF drive so as to control the speed of the motor of the screw, thereby controlling the rate of discharge.
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weigh feeders
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Weigh‐feeders are used to feed bulk solids at a controlled rate into the process. Rugged design makes them ideally suited for use under adverse conditions. As the variable speedpre‐feeder feeds product onto the synchronous speed weigh belt, the weight of this material is instantaneously sensed and transmitted to the feeder& controller. In turn, the controller modulates the variable speed drive of the pre‐feeder to maintain the precise feed rate as selected. A closed-loop PID control system ensures precise control over the rate of flow of material. The system consists of a Control Panel, Load Cells, and an Optical Encoder. The weigh‐feeder is a programmable electronic system, which interfaces to Load Cell and Encoder. It calculates the rate of the measured belt load and belt speed. Material conveying system (beltconveyor) Belt speed calculation system (Encoder) Speed Controller VFD ‐ VariableFrequency Drive) Load Cell-based weighing mechanism PID controller maintains the feed rateof the material into the process
Weigh Feeder
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Indus manufactures Electronic Gravimetric Weigh Feeders incorporating state-of-the –art technology for continuous bulk proportioning of solids.The material to be proportionally fed is passed over the belt; flow rate (also cumulative value) of the material is measured and compared with set parameters of the PLC/PID controller. The deviation is corrected by regulating the speed of the conveyor through variable speed A.C.Drive. (closed loop control system)Two high precision load cells are used to measure the belt load & a rotary encoder used to measure speed of the conveyor.Salient featuresPrecision machined rollers used to provide perfect belt run & high accuracyRubber coated pulleys prevents belt slippage.Gravity takes up to ensure constant belt tensionScrappers to prevent belt damage & tare changesEasy maintenance - belt change without aids from sideFully automatic Zero/Span calibrationHighly reliable PLC (with in built PID algorithm) & variable speed AC driveHigh precision load cells with damping to obtain best results.Empty Belt Correction Factor to achieve best AccuracySet Points Programmable from local panel or Main PanelOption FeaturesRs 485 Interface can generate printout with SQC AnalysisApplications Cement, Sponge Iron, Steel, Fertilizer, Chemical, Tobacco & Petrochemical Industries.
Weigh Feeder
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The weigh feeders are used to proportionally/set value material to feed the manufacturing process. The microprocessor based weigh feeders are used manufacturing plant like steel, cement comical and sand processing plant.
Weigh Belt Feeders
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Weigh Belt Feeders, oil batching system, Batch Indicator
Weigh Feeder
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Weigh Feeder, Erection Commissioning Services, Tank Weighing System
Weigh Feeder
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Weigh Feeder, batching systems, Big Bag Filler, Valve Bag Filler
Weigh Belt Feeder
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Weigh Belt Feeder, Loss In Weight Screw Feeder, Loss-In-Weight Feeder