Continuous operation weighers
The continuous operation weighers DNVD-650 are used for dosing powder and fine materials and can be used in different brunches of industry.
Dosing materials – loose batch components with angle of friction no more than 60, humidity no more than 5 and with particle size no more than 30 mm.
| Parameters|| DNVD-650/PV8S-0,5/1,2|| DNVD650/PV8S-0,5/1,6|| DNVD-650/SH-0,25/1,5|
| The biggest limit of proportioning (NPP), t/h (m3/h)|| 63(36)*|| 63(36)*|| 63(36)*|
| The lowest limit of proportioning (NmPP), % from NPP|| 20|| 20|| 20|
| Limit of permissible proportioning error in mode of conveyor weighs, %|| +1|| +1|| +1|
| Type of weighing conveyor|| KLM-650-3000|| KLM-650-3000|| KLM-650-3000|
| Width of conveyor belt, mm|| 650|| 650|| 650|
| Length between axes of pulley drive and tense stations, mm|| 3000|| 3000|| 3000|
| Drive pulley diameter, mm|| 215|| 215|| 215|
| Speed of belt moving, m/s|| 0,58|| 0,58|| 0,58|
| Energy input of conveyor, kW|| 1,5|| 1,5|| 1,5|
| Type of feeding device|| PV8S-0,5/1,2|| PV8S-0,5/1,6|| Screw with changeable step|
| Dimensions of feeder tray, (width/height), mm|| 474/256|| 474/256|| -|
| Screw diameter of feeding device, mm|| -|| -|| 250|
| Length between axes of feeding device loading and conveyor loading, mm || 1000|| 1485|| 1561|
| Energy input of feeder, kW|| 1,0|| 1,0|| 4,0|
| Inclination angle of feeder|| 8 degrees|| 8 degrees|| 10 degrees|
| Voltage, V|| 380|| 380|| 380|
| Utility frequency, Hz|| 50|| 50|| 50|
| Weight of dosing unit, no more than, kg|| 850|| 950|| 995|
* – Output in fact depends of properties of transport material, transport conditions and specifies during de-sign process; there is output for material with density 1,75 t/h.
Weighers DNVD-650 consist of the following devices:
• Feeding device (vibrating feeder or screw)
• Small size belt conveyor
• Weigher cap (DNVD-650/PV8S-0,5/1,2 and DNVD-650/PV8S-0,5/1,6) or junc-tion pipe with flexible connector (DNVD-650/SH-0,25/1,5)
• Hinged conveyor carriage
• Strain measuring suspender
• Suspension frame
• Control device
Feeding device with controlled output deliver the material on the belt of weighing conveyor.
Indicator of speed (encoder), connected with movable pulley axle tree, gives im-pulse signal during tape transport on definite value.
Strain measuring suspender test weight of conveyor with material and give the present meaning of weight load in control device to count weight of material, passed through conveyor.
Container and scaling factor of weighing device installs during weigher settings in-stallation (calibration check and test).
During the use of weigher for supplying certain dose of material, the concrete or-der is supported. This order allows managing the value of allowance, which provide measuring error elimination connected with loosing of material when the feeding device is switched of.