Thermal desorption cyclone spraying dust settling system capable of automatically and quickly monitoring, regulating and controlling

Abstract

The invention discloses a thermal desorption cyclone spraying dust settling system capable of automatically and rapidly monitoring, regulating and controlling. The system comprises a spraying tower, a gas inlet pipe and a gas outlet pipe are respectively arranged in the spraying tower, and the end part of the gas inlet pipe is provided with a gas inlet regulating device for controlling waste gas flow; a spraying device is mounted at the top of the spraying tower; the spraying device comprises a spraying cavity fixedly mounted at the top of the spraying tower, the top of the spraying cavity is communicated with a water inlet pipe, the bottom of the spraying cavity is connected with a movable ring through a sealing bearing, the bottom of the movable ring is connected with an end cover through a sealing bearing, and the end cover is fixedly connected with the inner wall of the spraying tower; and a plurality of groups of spraying holes are formed in the end cover in a central symmetry manner. A tail gas concentration detection module transmits data to a controller, a program is set in the controller, when the tail gas concentration data value is too large and exceeds the set range, a PLC drives a servo motor and an air cylinder, the servo motor drives a gear to rotate, a movable plate rotates along with the servo motor, an outer through hole and an inner through hole are staggered, and the flow in the gas inlet pipe is reduced.

Description

technical field [0001] The invention relates to the technical field of thermal desorption equipment, in particular to a thermal desorption automatic and rapid monitoring and control cyclone spray dust reduction system. Background technique [0002] Thermal desorption technology is the process of volatilizing or separating the target pollutants from the soil by heating the polluted soil. During the thermal desorption process, the target pollutants undergo evaporation, distillation, boiling, oxidation and pyrolysis. Through the control system Temperature and material residence time can selectively remove different pollutants. Pollutants in polluted soil are separated from the soil under negative pressure conditions, and finally completely eliminated or concentrated and collected in the tail gas treatment facility. [0003] During the thermal desorption process, the tail gas needs to be dedusted. Conventional dedusting includes bag dedusting, washing wet dedusting, electrostati...

AI Technical Summary

Problems solved by technology

The first three types of dedusting devices cannot be used for high temperature dedusting due to the limitations of materials, media or sizes used for dedusting. Conventional cyclone dust collectors are made of metal and can be used for high temperature dedusting, but the dedusting efficiency is not high

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