Detecting method for block in stirred bed reactor

Abstract

The invention discloses a detecting method for a block in a stirred bed reactor. The detecting method comprises the steps of a mounting step, arranging at least one vibration detecting device on the sidewall of the stirred bed reactor; a detecting step, detecting the vibration state in the stirred bed reactor at any time through the vibration detecting device, and converting the vibration state to an electric signal strength; and a determining step, determining the blocking condition in the stirred bed reactor according to correspondence between the electric signal strength which is output from the vibration detecting device and the mass of the block in the stirred bed reactor. According to the detecting method, drilling on the wall of the reactor and adding of a new blocking point are not required, and easy mounting is realized. The detecting method can accurately determine whether the block is generated in the reactor and furthermore can quantitatively measure the mass of the block in the reactor in real time.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a detection method for caking in a stirred bed reactor. Background technique [0002] The main progress of polypropylene process technology in the last 10 years is in the gas phase method. The gas phase method can adjust product varieties in a wide range, and produce high value-added products such as impact copolymers with balanced rigidity, toughness and fluidity, transparent impact polypropylene and thermoplastic polyolefin elastomers. At the same time, the gas phase polymerization process has the advantages of short process, no solvent and low energy consumption. At the end of 2006, the production capacity of the gas-phase process accounted for 34% of the global polypropylene production capacity, and at the end of 2010, the gas-phase process accounted for about half. There are three main types of gas phase polypropylene process reactors: vertical stirred bed, horizontal st...

AI Technical Summary

Problems solved by technology

Agglomeration affects the normal reaction, if it cannot be eliminated in time, it can only be shut down to stop production

[0004] In the prior art, there is no effective detection method for the agglomeration in the reactor during the reaction process, and the agglomeration problem cannot be judged and dealt with in time

Although there are some tentative measures, the effect is still uncertain

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