Multifunctional impurity removal device for recovering methylbenzene in production of sym-triazobenzene herbicides

Abstract

The invention provides a multifunctional impurity removal device for recovering methylbenzene in production of sym-triazobenzene herbicides, wherein the device comprises a reaction kettle, an upper side material inlet pipe, a stirring motor, a transmission rod, a U-shaped stirring frame, a material residue filtering and collecting frame structure, a heating pipe, a dustproof padding material residue hanging frame structure, a rotation driving frame structure, a longitudinal support frame, a gas outlet pipe, a water-liquid separation frame structure, an L-shaped guide pipe, a collecting box and an absorption layer, wherein the upper side feeding pipe is inserted into the left side of the upper part of the reaction kettle; the stirring motor is mounted at the middle upper part of the reaction kettle through bolts; and the transmission rod is arranged on the inner side of the reaction kettle. A temporary storage hopper is in threaded connection with the lower part of a lead-out valve, so that the temporary storage hopper can be conveniently used for temporarily storing material slag during use; and scraping frames are mounted at four corners of a transverse movable plate through bolts, so that the scraping frames can be conveniently used for scraping material residues adsorbed at the bottom of the reaction kettle during use, and the material residues at the bottom of the reaction kettle can be conveniently cleaned.

Description

technical field [0001] The invention belongs to the technical field of toluene recovery devices, and in particular relates to an impurity removal device for recovering toluene in the production of multifunctional s-triazine herbicides. Background technique [0002] Toluene, as a common solvent, needs to be purified and recovered by distillation after use, but the solvent stock solution usually contains more impurities, and impurities entering the still will not only affect the purification effect, but also easily generate dirt on the inner wall of the still, affecting the quality of the still. The heat exchange rate is high, and the traditional distillation kettle usually adopts a jacketed type or a heating tube is installed in the stilling kettle. When the jacketed type is used, the contact surface between the heat source and the original liquid in the stilling kettle is small, and the heat is easy to radiate outward. At this time, the hot water flows in from the upper end ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above technical problems, the present invention provides a kind of impurity removal device for recovering toluene in the production of multifunctional s-triazine herbicides, so as to solve the problem that the existing toluene removal device does not have the ability to store and collect the filtered slag , it is inconvenient to clean the bottom of the still, it is inconvenient to discharge the slag at the bottom and it is inconvenient to store the liquid

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