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A method and system for treating air leakage of a rotary valve

A technology of rotary valve and dust removal system, applied in the field of flue gas purification, can solve the problems such as the deformation of the rotary valve blade and the invisible rotary valve, so as to avoid corrosion and blockage, ensure rationality and reduce pollution.

Active Publication Date: 2021-07-20
ZHONGYE-CHANGTIAN INT ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The inside of the rotary valve cannot be seen. How to find out that the blades of the rotary valve are deformed and whether the air leakage is serious?

Method used

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  • A method and system for treating air leakage of a rotary valve
  • A method and system for treating air leakage of a rotary valve
  • A method and system for treating air leakage of a rotary valve

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Experimental program
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Effect test

Embodiment approach

[0179] According to a first embodiment of the present invention, a system for judging air leakage of a rotary valve is provided.

[0180] A system for judging and processing air leakage of a rotary valve, the system includes an adsorption tower 1, a desorption tower 7, a second rotary valve 202, a second conveyor 302, a second dust removal system 402, a second pressure gauge 502, and raw flue gas Delivery pipeline L0, sixth pipeline L9. Wherein, the raw flue gas delivery pipeline L0 is connected to the flue gas inlet of the adsorption tower 1 . The second conveyor 302 connects the activated carbon outlet of the desorption tower 7 and the activated carbon inlet of the adsorption tower 1 . The activated carbon inlet of the adsorption tower 1 is provided with a second rotary valve 202 . The second dust removal system 402 is connected with the second conveyor 302 through the sixth pipeline L9. A second pressure gauge 502 is provided on the second conveyor 302 .

[0181] Prefer...

Embodiment 1

[0205] A method for judging air leakage of a rotary valve, the method comprising the following steps:

[0206] 1) The flue gas enters the adsorption tower 1 through the original flue gas conveying pipeline L0, and is discharged after being adsorbed and purified by the activated carbon in the adsorption tower 1; A conveyor 301, the first conveyor 301 transports the activated carbon to the desorption tower 7 for analysis and regeneration; the activated carbon decomposed by the desorption tower 7 enters the second conveyor 302, and enters the adsorption tower 1 through the second rotary valve 202 at the top of the adsorption tower 1. Tower 1;

[0207] 2) At the initial stage of commissioning of the second rotary valve 202, record the initial frequency F of the fan motor of the second dust removal system 402 connected to the second conveyor 302 2 , and record the initial pressure P of the second pressure gauge 502 arranged on the second conveyor 302 and located upstream of the se...

Embodiment 2

[0210] A method for judging air leakage of a rotary valve, the method comprising the following steps:

[0211] 1) The flue gas enters the adsorption tower 1 through the original flue gas conveying pipeline L0, and is discharged after being adsorbed and purified by the activated carbon in the adsorption tower 1; A conveyor 301, the first conveyor 301 transports the activated carbon to the desorption tower 7 for analysis and regeneration; the activated carbon decomposed by the desorption tower 7 enters the second conveyor 302, and enters the adsorption tower 1 through the second rotary valve 202 at the top of the adsorption tower 1. Tower 1;

[0212] 2) At the initial stage of commissioning of the second rotary valve 202, record the initial flow Q of the second flowmeter 1102 on the delivery pipeline connecting the second conveyor 302 and the second dust removal system 402 2 , and record the initial pressure P of the second pressure gauge 502 arranged on the second conveyor 302...

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Abstract

A method for judging and treating air leakage of a rotary valve, the method comprising the following steps: 1) flue gas is discharged after being adsorbed and purified by activated carbon in an adsorption tower; The activated carbon enters the adsorption tower; 2) At the initial stage of the second rotary valve commissioning, record the frequency F of the fan motor of the second dust removal system 2 , and the display value P of the second pressure gauge 2 ; 3) the second rotary valve continues to run, keep the value of the second pressure gauge constant, observe the variation of the fan motor frequency of the second dust removal system; 4) set the variation range of the fan motor frequency of the second dust removal system, if the fan If the change in motor frequency is within the set frequency change range, the second rotary valve is in normal operation; if the change in fan motor frequency exceeds the set frequency change range, it is determined that the second rotary valve is leaking air. The method is simple to operate, and can effectively judge whether the rotary valve at the top or the bottom of the adsorption tower has air leakage.

Description

technical field [0001] The invention relates to a treatment method for air leakage of a rotary valve of an activated carbon system and a treatment system for air leakage of a rotary valve, belonging to the technical field of flue gas purification. Background technique [0002] After the sintering flue gas passes through the main exhaust fan, the discharge temperature is about 110-170 ° C, which contains SO 2 , NO x , dust, dioxins, heavy metals and other pollutants, and the activated carbon flue gas purification technology is just suitable for the sintering flue gas temperature emission range, which can realize the synergistic and efficient purification of multiple pollutants, and can simultaneously remove a variety of pollutants on a set of equipment Pollutants, achieving by-product SO 2 The utilization of resources, and this technology has the advantages of high pollutant removal efficiency, basically no consumption of water resources, and no secondary pollution. The ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/02G01M3/28
CPCB01D53/02B01D2253/102B01D2259/40005G01M3/2876
Inventor 魏进超李俊杰傅旭明
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
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