Device and method for synthesizing cyclohexyl salicylate by adopting solid alkali as catalyst

The invention provides a device for synthesizing cyclohexyl salicylate by adopting a solid alkali as a catalyst. The device comprises a cyclohexanol storage tank, a chemical engineering material pump, a cyclohexanol elevated tank, a methyl salicylate elevated tank, an esterification reaction kettle, a fractionating tower A, a spiral plate heat exchanger A, a methanol receiving tank, an automatic back-washing precise filter and a corrosion-resistant material pump, wherein the esterification reaction kettle is in pipe connection with the automatic back-washing precise filter; the automatic back-washing precise filter is in pipe connection with the cyclohexanol elevated tank, and further in pipe connection with a crude reaction product intermediate tank; the crude reaction product intermediate tank is in pipe connection with a water washing kettle and a standing elevated tank; the standing elevated tank is in pipe connection with a kettle-type rectifying tower; the kettle-type rectifying tower is connected with