The Positive Pressure 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 positive pressure weighing and Feeding machine is composed of a storage and conveying system, a weighing module, a weighing instrument, a PLC control system, a vacuum system and a weighing and feeding machine. The combination of negative pressure conveying and batching tank, through the linkage of the weighing module on the reaction tank with the negative pressure conveying equipment and the adoption of a PLC full-process control system, effectively solves many problems existing in the powder conveying process, and has the advantages of low energy consumption, low cost and low maintenance.
The weighing Feeder runs the Siemens WINCC monitoring software through a computer and communicates with the two communication ports of the programmable controller through their respective communication ports. It can operate independently and serve as a mutual backup, significantly enhancing the reliability of the system. The monitoring software can dynamically display the entire production process's technological flow, show the operation, fault and alarm status of each device, display process parameters such as temperature and pressure, and can set parameters such as alarm values, timing parameters, and parameters of weighing instruments.
The weighing and batching machine mainly accomplishes the batching measurement and feeding process control. The PLC, based on the user login level preset by the operator, manually sets and adjusts parameters such as the set weighing times, counterweight, ratio, and impact difference on the CRT. At the same time, it displays the actual value and the actual value of each batching, as well as the next target value calculated by the PLC, on the CRT. In addition to the number of times weighed, the number of times to be weighed, the ratio, etc., the system also requires equipment control requirements such as batching interlock, downward interlock, and upward interlock.
Features of positive pressure dilute phase pneumatic conveying system
By taking advantage of the dynamic pressure of gas, the material moves forward at a relatively high speed in the conveying pipeline (8m/s-25m/s), and the conveying pressure gradually decreases along the conveying pipeline.
2. Continuous conveying ensures that the conveying flow pattern, conveying pressure and speed, and the material-to-gas ratio remain basically stable. It features high operational reliability and easy maintenance.
3. It can achieve simultaneous feeding at multiple points and discharging at multiple points.
4. When applied to closed-loop systems, there is no need to add gas buffer devices, and it is easy to control.
5. It has a short conveying distance and is especially suitable for pneumatic conveying over short or medium distances.
Basic parameters
Air velocity :15m/s-30m/s
Material speed :8m/s - 15m/s
Conveying capacity :1-100t/h
Conveying distance: Up to 1000m(multi-stage power sources can be adopted)
Air source type: Roots blower or Roots air compressor.
