Ultrasonic device for cleaning denitration catalyst

Abstract

The invention relates to an ultrasonic device for cleaning a denitration catalyst. The device comprises an ultrasonic generator, one or more than one ultrasonic bars and a porous flange plate, wherein the ultrasonic generator is connected with the ultrasonic bars; the multiple ultrasonic bars are arranged in parallel; the ultrasonic bars are inserted into the holes of the denitration catalyst; each ultrasonic bar can be inserted into the hole of the denitration catalyst from one end or two ends of the denitration catalyst; and one end of each ultrasonic bar is connected with the porous flange plate. The device disclosed by the invention is good in cleaning effect, and the ultrasonic bars stretch into the interiors of the holes of the catalyst for cleaning; the ultrasonic energy distribution is uniform, and structural damage of the catalyst is avoided; and moreover, the ultrasonic energy emission is mainly performed in the radial direction, the pores are completely cleaned, and the catalyst is high in regeneration quality, stable and reliable.

Description

technical field [0001] The invention relates to an ultrasonic device, in particular to an ultrasonic device for cleaning a denitrification catalyst. Background technique [0002] China is a country that consumes a lot of energy mainly by thermal power. It emits a large amount of nitrogen oxides while burning coal. If the control is not strengthened, the consequences of air pollution in our country will become more and more serious. According to the data provided by the China Environmental Monitoring Center, in 2011 my country's total nitrogen oxide emissions were 24.043 million tons, of which the power industry's nitrogen oxide emissions accounted for more than 45%, accounting for more than half of the total emissions of various combustion devices, while the power industry More than 80% of the nitrogen oxides emitted by the industry are emitted by coal-fired boilers. . [0003] In order to reduce nitrogen oxide emissions, there are two ways of combustion process control and...

AI Technical Summary

Problems solved by technology

This device has great disadvantages: first, the ultrasonic energy is severely attenuated inside the denitrification catalyst, resulting in the inside of the workpiece, especially the central area, which cannot be cleaned, and the cleaning effect is poor; The strength of the denitrification catalyst is greatly reduced, resulting in structural damage; the third is the existing denitrification catalyst ultrasonic cleaning device, the ultrasonic wave emits energy in an axial manner, and the cleaning effect is poor; the fourth is the existing denitrification catalyst ultrasonic device, the ultrasonic wave is in the denitrification catalyst. The energy distribution in the workpiece is uneven, and the regeneration quality is not high, which directly affects the use effect and life of the regenerated denitration catalyst

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