The weighing feeder records the weight data of various materials, which are stored in the database, and produces reports such as class report, daily report and monthly report according to these data. The system also monitors the high mixing temperature and silo temperature in real time, and has real-time curve tracking to monitor the real-time temperature of materials and silos and historical curve to query the historical temperature. The programmable controller not only completes the logic control of the whole production line, but also communicates with weighing instruments and temperature control instruments. Besides reading the weight data every time, it can also set the working parameters of each instrument to realize remote monitoring.
020-34563445The weighing mixer consists of storage and transportation, weighing module, weighing instrument, PLC control system, vacuum system and weighing Feeder. The combination of negative pressure conveying and batching tank, through the linkage of weighing module on the reaction tank and negative pressure conveying equipment, adopts PLC full-range control system, effectively solves many problems existing in powder conveying process, and has the advantages of low energy consumption, low cost and low maintenance.
The weighing feeder runs Siemens WINCC monitoring software through the computer, and communicates with the two communication ports of the programmable controller through their respective communication ports, which can run independently and play the role of mutual backup, greatly improving the reliability of the system. The monitoring software can dynamically display the technological process of the whole production process, display the operation, fault and alarm status of each equipment, display process parameters such as temperature and pressure, and set parameters such as alarm value, timing parameters and weighing instrument.
Weighing dosing machine mainly completes batching metering and feeding process control. According to the user login level preset by the operator, PLC manually sets and adjusts the set parameters such as weighing times, counterweight, ratio, impact difference, etc. At the same time, the actual value of each batching and the actual value of under-value, as well as the next target value obtained by PLC operation, weighing times, times to be weighed, ratio, etc., and the system also requires equipment control requirements such as batching interlocking, downward interlocking and upward interlocking.
Characteristics of positive pressure dilute phase pneumatic conveying system;
1. Using the gas dynamic pressure, the material advances in the conveying pipeline at a high speed (8m/s-25m/s), and the conveying pressure gradually decreases along the conveying pipeline;
2, continuous conveying, conveying flow pattern, conveying pressure and conveying speed, and material-gas ratio are basically stable, with high operation reliability and easy maintenance;
3, multi-point simultaneous feeding and multi-point discharging can be realized;
4. When it is used in a closed-loop system, there is no need to add gas buffer equipment, which is easy to control;
5, short conveying distance, especially suitable for short or medium distance pneumatic conveying.
Basic parameters:
Air velocity: 15m/s-30m/s,
Material speed: 8m/s-15m/s,
Transport capacity: 1~100t/h,
Conveying distance: up to 1000m (multi-stage power source can be used),
Air source type: Roots blower or Roots air compressor.
