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Method for cleaning filter bag for cloth-bag or electric-bag dust collector

A dust collector and filter bag technology, which is applied in the cleaning field of filter bags for cloth bags or electric bag dust collectors, can solve the problems affecting the service life of filter bags, the stable operation of dust collectors, the increase of dust removal resistance/pressure difference of filter bags, and the surface area of ​​filter bags. Too much dust and other problems, to shorten the cleaning cycle, reduce energy consumption, and restore the effect of air permeability

Active Publication Date: 2012-03-28
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual use of the filter bag, there will be a series of problems, such as: too much dust on the surface of the filter bag, soot compaction, etc., which will not only increase the resistance / pressure difference of the filter bag to clean the dust, but also shorten the cleaning cycle and increase the energy. In severe cases, it will even affect the service life of the filter bag and the stable operation of the dust collector

Method used

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  • Method for cleaning filter bag for cloth-bag or electric-bag dust collector
  • Method for cleaning filter bag for cloth-bag or electric-bag dust collector
  • Method for cleaning filter bag for cloth-bag or electric-bag dust collector

Examples

Experimental program
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Effect test

Embodiment 1

[0016] A cleaning method for a filter bag for a cloth bag or electric bag dust collector, which includes the following steps:

[0017] ① Intercept the old filter bag of suitable size for breaking strength test (test method adopts GB / T3923.1-1997), the results are shown in Table 1. From Table 1, it can be seen that the radial and weft breaking strength are not less than 400N, then You can proceed to the next test step.

[0018]

[0019] ②Intercept 100cm 2 The sample of the above-mentioned filter bag was cleaned by the vacuum cleaner until there was no obvious dust on the surface, and then soaked in 250ml of water to determine the pH value and ion concentration of the soaking solution (the ion concentration was measured by plasma emission spectrometer-ICP). The results are shown in Table 2. According to the analysis result, except for Cl - In addition, if all other components are outside the specified range, it is determined that the filter bag needs to be cleaned. The filter bag so...

Embodiment 2

[0025] A cleaning method for a filter bag for a cloth bag or electric bag dust collector, which includes the following steps:

[0026] ①Take an old filter bag of appropriate size for breaking strength test (testing method adopts GB / T3923.1-1997), the results are shown in Table 4. From Table 4, it can be seen that the radial and weft breaking strength are not less than 400N, then You can proceed to the next test step.

[0027]

[0028] ②Intercept 50cm 2 After cleaning the dust of the above filter bag sample, the vacuum cleaner is soaked in 125ml of water, and the pH value and ion concentration of the soaking solution are measured (the ion concentration is measured by plasma emission spectrometer-ICP). The results are shown in Table 5. According to the analysis result, except for Cl - In addition, if all other components are outside the specified range, it is determined that the filter bag needs to be cleaned. The pH of the filter bag soaking liquid is slightly less than 5.5, and li...

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Abstract

The invention relates to a method for cleaning a filter bag for a cloth-bag or electric-bag dust collector, which comprises the following steps: (1) clearing surface dust of the filter bag of which the breaking strength is not less than 400N, then, soaking an intercepted small sample into water, measuring the pH value and the ion concentration of soak solution, and if the pH value of the soak solution is less than 5 or in gteater than 9, or F<-> is greater than 2.0mg / l, Cl<-> is greater than 250mg / l, NO3<-> is greater than 30mg / l, SO42<-> is greater than 350mg / l and PO43<-> is greater than 3mg / l in the soak solution, judging that the filter bag needs to the cleaned; (2) firstly, clearing a surface pressed powder layer of the complete filter bag by using compressed air, then, clearing the surface dust by using the dust collector, then, shifting the filter bag into an ultrasonic instrument holding detergent solution for cleaning, washing with the water after the cleaning is completed, and drying in a drying oven. After being cleaned by adopting the method, the filter bag can be recovered in air permeability, the dust clearing period is shortened, corrosive ions remaining in the filter bag are removed, and the service life of the filter bag is prolonged.

Description

Technical field [0001] The invention relates to a method for cleaning a filter bag for a cloth bag or an electric bag dust collector, in particular to a method that includes the steps of preliminary judgment of filter bag performance, analysis of filter material properties, selection of cleaning agents, cleaning, drying, and analysis and evaluation of cleaning effects. The cleaning process is widely applicable to the cleaning of various bag or electric bag filter bags. Background technique [0002] As the country attaches great importance to energy conservation and emission reduction, and the country has strict and specific air pollutant emission standards for various industries, a series of policies have begun to be issued frequently. At the end of 2003, the State Environmental Protection Administration issued the newly revised pollutant emission standard GB13223-2003 "Air Pollutant Emission Standard for Thermal Power Plants", which stipulated corresponding air pollutant emissio...

Claims

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Application Information

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IPC IPC(8): B08B3/12
Inventor 李东梅郭阳董雪峰吴文龙周晓湘
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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