Method for dredging drainage pipeline through dry ice micro-explosion

Abstract

The invention provides a method for dredging a drainage pipeline by adopting dry ice micro-explosion, which comprises the following steps: step 1, assembling and connecting a dry ice cleaning machine; step 2, lowering and walking the dry ice cleaning machine in the pipeline; step 3, carrying out dry ice micro-explosion cleaning on a to-be-dredged pipe section: controlling the dry ice cleaning machine to walk to a to-be-dredged part through a ground console, and carrying out dry ice micro-explosion cleaning on the to-be-dredged pipe section; the air compressor and the dry ice storage machine are started, dry ice particles enter the dry ice cleaning machine through the rubber hose and are sprayed to the inner surface of the pipeline through a dry ice nozzle of the dry ice cleaning machine, dry ice absorbs heat to generate micro-explosion, the micro-explosion force of the dry ice is utilized to enable deposits to be separated from the inner surface of the pipeline, and therefore the purpose of dredging is achieved. And the whole process is operated on the ground, operation is convenient, manual well descending is not needed, and the personal safety of workers is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of dredging of municipal drainage pipelines, and particularly relates to a method for dredging drainage pipelines by using dry ice micro-explosion. Background technique [0002] The urban drainage pipeline system is an indispensable and important municipal infrastructure of a modern city, and it is also a backbone project for urban water pollution prevention and urban drainage, drainage and flood control. The drainage pipeline system is responsible for collecting and conveying the domestic sewage, industrial wastewater and atmospheric precipitation produced by urban production and living, and timely and reliably removing the collected domestic sewage, industrial wastewater and atmospheric precipitation, so as to prevent the urban area from being harmed by sewage and wastewater. , to avoid flood disasters in the road area during heavy rain, so as to provide people with a safe and comfortable production and li...

AI Technical Summary

Problems solved by technology

Most of these methods are designed for the desilting of small-diameter drainage pipes, and the desilting efficiency is not high for large-diameter drainage pipes. Some technologies have high operating costs, insufficient desilting capacity, and secondary pollution when applied to large-diameter drainage pipes. And limitations such as inability to adapt to complex terrain conditions

And when the engineering waste slurry and cement mortar are directly discharged into the drainage pipe network, it is easy to interact with other sediments to form dense scaling accumulated at the bottom of the pipe culvert, which is difficult to use traditional pipeline dredging methods and equipment. to clean

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