Catalog excerpts
Application of Level Switch in transfer of Mine Filling Material In deep well mining, how to transfer mine filling material and support materials in a safe, efficient and environmental friendly way is a difficult question that mining enterprises are facing. The filling material is generally a fine powder which often solidifies quickly when it is stirred with water. There are two traditional methods for transferring filling materials. One is with mining trucks and another is with transfer belt. Both methods have the problems of longer transportation time and too many links in the transfer path. In comparison, pipeline transfer uses compressed air as a power to fulfill one-stop automatic transportation of filling materials from ground to underground mine through an intelligent control system so that the problems with traditional methods will be effectively solved. Intelligent pipeline transportation system is mainly includes ground terminal, transit station, working station, transfer pipeline and communication system, as shown in Fig.1. The stable operation of the system is relying on the accurate material level measurement. We need to figure out where level switch will be applied in filling material transfer process, what are the special requirements for the level switch in the underground environment, and how we can make the right choice for the level switch. Schematic diagram of mine filling material transportation 1. Applications of level switch in pipeline transportation of mine filling material. Ground terminal usually includes several vertical silos and transit silos that are ten meters or tens of meters high. It functions as ground material storage terminal and control center. Transit Shenzhen Jiwei Automations Ltd.
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station is located between ground terminal and underground working station and should have a function of automatic feeding for empty silo and automatic stop when silo is full. When the working station sends signal and demand filling materials, the transit station will automatically transfer the filling material to the working station. The working station mainly fulfills the function of automatic material proportioning and filling. Monitoring pipeline status involves the detection of pressure, flow rate and material level. Therefore, detection and control of the material level is throughout...
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3. Performance comparison of level switch products and level switch selection Performance comparison table for different level switches Relation dielectric Level switch constant medium switch Fork level switch RF Admittance Level Switch Single rod vibrating level switch Imported double rod vibrating level switch Domestic double rod vibrating level switch False Intrinsic Cost-effective alarm Safety It is obvious to see from the above comparison that double rod vibrating level switch, which designed with nested internal and external vibrating rod, has more advantages under mining working...
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the customer and helped the customer place the order for Jiwei Tube-11ICXXWXML with Intrinsic Safety explosion protection. Tube-11 vibrating rod level switch is the first domestic double rod vibrating level switch. The probe is designed with a unique nest configured inner and outer double tube. The resonance frequency of the inner and outer vibrating tubes is precisely adjusted to the same value to reach complete resonance so that the instrument reaches to extremely high detection sensitivity and reliability. The measurable medium density can be as low as 0.02g/cm³. The ingress protection...
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