2results about How to "Save equipment" patented technology

The invention belongs to the technical field of organic synthesis, and particularly relates to a catalyst-free continuous production method of chlorotert-butane, which comprises the following steps: adding diluted hydrochloric acid as a starting solution into the tower kettle of a reactive distillation tower, and heating the tower kettle to boil until reflux exists at the tower top; the method comprises the following steps: adding tert-butyl alcohol and concentrated hydrochloric acid into a mixing preheater for preheating, then continuously feeding from a feed port of a reactive distillation tower until the tower top temperature is 45-48 DEG C, the side discharge port temperature is 50-52 DEG C and the tower kettle temperature is 96-105 DEG C, and carrying out reflux according to a reflux ratio of (1.5-3): 1; and continuously extracting crude chlorinated tert-butane from a side discharge port of the tower, cooling, neutralizing, drying and filtering to obtain the chlorinated tert-butane. According to the invention, through the integrated design of the mixing preheater and the reactive distillation column, especially by utilizing the reactive distillation technology to continuously remove the product, the chemical equilibrium limitation of the traditional intermittent process is successfully broken, the raw material conversion rate is obviously improved, and meanwhile, the green production targets of flow simplification, energy consumption reduction and three-waste emission reduction are realized.

The present application relates to the technical field of roadbed monitoring, and particularly relates to a roadbed settlement automatic monitoring system and method based on optical fiber sensing technology, comprising a fiber grating demodulator, a plurality of strain optical cables arranged along the longitudinal direction of the roadbed, and a plurality of transverse deformation correction units, the strain optical cables are arranged between the base bed bottom layer and the base bed surface layer and are connected with the fiber grating demodulator; the plurality of transverse deformation correction units are arranged along the longitudinal direction of the roadbed at intervals, and are used for monitoring the actual deformation amount of each strain optical cable at the cross section. The strain optical cables are arranged along the longitudinal direction of the roadbed, so that long-distance continuous measurement and monitoring can be realized; meanwhile, a plurality of transverse deformation correction units are arranged along the longitudinal direction of the roadbed at intervals, the actual deformation amount of the strain optical cables at a plurality of cross sections is monitored, the deformation amount of the strain optical cables in the whole section is corrected, and the monitoring precision of long-distance continuous monitoring of the optical fiber is improved.