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Author: Smartweigh–Multihead Weighter
In principle, the process of burning molybdenum concentrate is a whole process of redox reaction, and a very stable reflection of the natural environment is very important to the actual operation of the process. On the one hand, the double-layer furnace of the multi-heart furnace provides a relatively stable firing environment for molybdenum oxide firing; When the relative stability is maintained, the relative balance can be maintained by completing the balance of raw materials and calorific value in the whole process of roasting, and the stability and firmness of the product quality can be relatively ensured. A gold and molybdenum enterprise supplies raw materials for 2 sets of multiple hearth furnaces. The key raw materials are self-purchased molybdenum concentrate except for the company's self-produced and self-sold molybdenum concentrate. Generally more stable, less fluctuations.
At this time, the precise control and smooth addition of the amount of raw materials added during the processing of the two multiple hearth furnaces seems to be very critical. Therefore, designing and selecting a set of suitable molybdenum concentrate features, high level of automation technology, accurate measurement verification, stable and firm raw material supply and demand balance multihead weigher will become a key manufacturing stage of the multi hearth furnace feeding control system. The loss-in-weight feeder scale is a kind of raw material feeding equipment. It applies a dynamic control system and is equipped with a dynamic weighing controller to adjust the operating speed of the extruder screw, feeder, pump and other electric actuators in real time. To control the total flow of the feeder, also known as the constant total flow feeder, it is widely used in continuous feeder production lines in the manufacturing industries of rubber and plastic insulation boards, chemical plants, food, steel non-ferrous plates and other manufacturing industries. The advent of the machine scale feeder system software can not only improve the accuracy, reliability and firmness of the feeder, but also greatly improve the operating efficiency of the processing plant, reduce the labor efficiency of the actual operating staff, and write more for the company. economic and social benefits.
A typical multihead weigher system software key consists of weighing hopper, driver and feeder equipment, weighing sensor, replenishment valve, driver control board, module, configuration control module (optional) and actual operation control panel (optional). ) etc. In this system software, according to the characteristics of raw materials and the specific conditions of the production system of the multi-heart furnace of Jinmo Co., Ltd., the system software is not equipped with hopper and feeding valve, and the control system design starts from the weighing hopper. The raw materials are air-dried by the upstream and downstream molybdenum concentrate preparation processing system software, so that the moisture content of the molybdenum concentrate is less than 5%, and then transferred to the multihead weigher system software through belt conveyors, bucket elevators and other conveying machinery.
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