A method for unloading a dust-removing air duct

Abstract

The invention provides a discharging method for a dust removal air pipe. The discharging method for the dust removal air pipe aims to avoid the phenomenon of dust accumulation in a dust removal pipeline and is a high-efficiency and safe treatment method, and shutdown operation is not needed. According to the discharging method for the dust removal air pipe, a preset dust removal part of the dust removal air pipe is arranged to be of a four-way structure, a first passage in the four-way structure is an air pipe inlet, a second passage is an air pipe outlet, a blind plate is arranged at the tail end of a third passage in a sealed mode, a discharging valve is arranged on a fourth passage, a discharging port is formed in the outlet end of the discharging valve, the first passage and the third passage are arranged on the same linear extension line, the second passage is arranged on the upper part, the fourth passage is arranged on the lower part, a scraper plate is arranged on the inner side of the blind plate, the center of the outer side of the scraper plate can be externally connected to a push rod, an inward-concave notch is formed in the outer periphery of the scraper plate, and the push rod drives the scraper plate to do inward extension motion or outward contraction motion towards a pipeline corresponding to the first passage.

Description

technical field [0001] The invention relates to the technical field of pipe unloading, in particular to a method for unloading dust removal air ducts. Background technique [0002] In the existing dust exhaust system in the exhaust pipeline, a large amount of dust will accumulate in the pipeline during use. In order to ensure the smooth flow of the dust removal pipeline, it is necessary to clean the inside of the pipeline regularly. The existing method is: a. The pipelines that have not installed the gate valve in the early stage choose to shut down and clean; [0003] b. After closing the gate valves on both sides of the pipeline that needs to be cleaned, open the blind plate at the end of a section of the pipeline, and then use the scraper to clean it. After the cleaning is completed, the blind plate will be blocked. superior; [0004] Neither of these two methods can be carried out when the machine is running normally, so as to avoid the dust inside the pipeline from fl...

AI Technical Summary

Problems solved by technology

Long-term accumulation of dust will block the slideway of the flapper valve, which will affect the normal function of the flapper valve, which will not only make the operation of pipeline cleaning complicated, but also cannot guarantee whether all the dust can be collected without splashing into the clean room

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