Network control system for phenanthrene extracting device, and extracting method

The invention relates to the field of extraction of organic compounds, in particular to an phenanthrene extracting method of a network control system for a phenanthrene extracting device. The device comprises an anthracene oil storage device, a heat conducting oil preheating device, a coal gas generating furnace, a distilling kettle, a rectifying tower, a reaction kettle, a solid-liquid separating device and a dryer, wherein the tower top of the rectifying tower is connected with the reaction kettle through a cooler and a measuring tank in sequence; the reaction kettle is further provided with a compound solvent pipeline which is connected with a solvent tank A and a solvent tank B respectively; the outlet of the reaction kettle is connected with a washing kettle through a scraper type crystallizer in sequence; the scrapper type crystallizer and the washing kettle are provided with outlets which are connected with the solid-liquid separating device respectively; a solid isolate of the solid-liquid separating device enters the drier; and a liquid isolate of the solid-liquid separating device enters a solvent recovering tank through a vacuum catcher. Compared with the prior art, the network control system has the beneficial effects that (1) the process is simple, the system is easy to operate, and the equipment manufacturing cost is low; (2) the purity of phenanthrene is over 98 percent, and the process stability is high; and (3) network intelligent control is realized.