High throughput metal powder pipe regeneration method

Abstract

The invention relates to a high throughput metal powder pipe regeneration method, which comprises the following steps: removing the powder pipes with cracks and / or pitting corrosion defects; then removing the adsorbent particles which adsorb on the metal powder pipe surface by a physical airflow purging method; placing the metal powder pipe in a supersonic wave groove containing an oil extraction solvent for treatment; placing the metal powder pipe in a supersonic wave groove containing a surfactant for treatment; placing the metal powder pipe in a supersonic wave groove containing a saturated complexing agent EDTA and weak acid; testing by a method for measuring water flux; and flushing the metal powder pipe by pure water and placing in a vacuum reducing furnace for treatment. According to the invention, the filterability can be recovered to more than 90% of a whole new powder pipe, and the method provided by the invention has the characteristics of simple and reasonable process, good regeneration effect, less investment, energy saving and consumption reduction and great prolongation of usage life of filter cores.

Description

technical field [0001] The invention belongs to the technical field of filter equipment production, and relates to a method for regenerating high-throughput metal powder tubes that can be widely used in the industrial fields of chemical industry, medicine, power generation, metallurgy, and food, and is especially suitable for the regeneration of filter elements in adsorption desulfurization devices in petrochemical enterprises. regeneration. Background technique [0002] At present, the filters used in the fields of petrochemical and iron and steel industries all work under harsh conditions such as high temperature and high pressure. Resulting in shutdown of the entire filter unit. The manufacturing cost of these filter elements is very high. At the same time, as long as the fine particles extending into the filter layer can be cleaned out from the filtration mechanism, the performance of the entire filter system can be restored. Therefore, if these filter elements can be r...

AI Technical Summary

Problems solved by technology

[0002] At present, the filters used in the fields of petrochemical and iron and steel industries all work under harsh conditions such as high temperature and high pressure. resulting in shutdown of the entire filter unit

The manufacturing cost of these filter elements is very high. At the same time, as long as the fine particles extending into the filter layer can be cleaned out from the filtration mechanism, the performance of the entire filter system can be restored. Therefore, if these filter elements can be regenerated using a reasonable method have great economic benefits

[0003] At present, in the adsorption desulfurization devices widely used in petrochemical enterprises, the filter element imported from abroad has a service life of only about one year. At the end of the service life, the pressure difference resistance is very large. Judging from the section of the replaced filter element, the gap is filled with fine particles. Particles cause severe clogging