CN103691273A - Processing method of sulfur hexafluoride breaker gas adsorbent - Google Patents
Processing method of sulfur hexafluoride breaker gas adsorbent Download PDFInfo
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- CN103691273A CN103691273A CN201210368935.6A CN201210368935A CN103691273A CN 103691273 A CN103691273 A CN 103691273A CN 201210368935 A CN201210368935 A CN 201210368935A CN 103691273 A CN103691273 A CN 103691273A
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- sulfur hexafluoride
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Abstract
The invention relates to a processing method of a sulfur hexafluoride breaker gas adsorbent. Chemical reagents react with harmful gas substances comprising the of sulfur hexafluoride gas adsorbent and the like, so the harmful gas substances are converted into nontoxic inorganic salts, thereby a leftover problem after traditional gas adsorbent processing is solved; and the adopted reagents are common chemical reagents, so the processing cost of the harmful gas substances is saved, thereby the processing method has very large practicality and popularization values.
Description
Technical field
The present invention relates to a kind of processing method to nuisance in sulfur hexafluoride breaker, specifically a kind of processing method that absorption in sulfur hexafluoride breaker equipment in maintenance is had to a kind of sulfur hexafluoride breaker adsorbent that the adsorbent of pernicious gas processes.
Background technology
Retrieve relevant patent documentation, not yet retrieve at present identical with the present invention for the processing method to sulfur hexafluoride breaker adsorbent.Sulfur hexafluoride breaker adsorbent, it is for adsorbing the analyte after sulfur hexafluoride breaker gas arc extinguishing; Because the sulfur hexafluoride gas in sulfur hexafluoride breaker must stand at arc extinguishing process gas under the effect of high-voltage great-current, high temperature, γ-ray emission certain analyte,
There is severe toxicity in this analyte, mishandling meeting exerts an influence to personal safety, environmental protection.The mode that adopts the adsorbent of the high voltage electric equipment of sulfur hexafluoride gas to process is generally to two kinds both at home and abroad at present: 1, store up and carry out buried into stainless steel steel cylinder; 2, carry out neutralization reaction with the solution of NaOH.In GB GB/T 8905-1996 < < The guide for processing and measuring SF6 gas in power apparatus > > 7.5.2, introduced the adsorbent changing and do not re-used in producing the equipment of decomposition gas, buried after application 20% sodium hydroxide solution soaks.Wherein there is no concrete regulation soak time, do not introduce end reaction thing yet and how to process, whether harmless treatment etc.; And there is potential safety hazard in buried processing, if surprisingly dug out, can cause great social influence, to environment, also can pollute, thus be necessary the processing method of existing adsorbent to be improved, to improve the security after processing.
Summary of the invention
The object of the invention is to provide a kind of common chemical reagent that utilizes, by reacting with the nuisance in sulfur hexafluoride gas adsorbent, nuisance is converted into nontoxic inorganic salts, pass through again Separation of Solid and Liquid, effectively recovery can utilize material, reaches the processing method of a kind of sulfur hexafluoride breaker adsorbent of harmless treatment.
In order to realize the object of foregoing invention, the processing method of a kind of sulfur hexafluoride breaker adsorbent of the present invention, comprises the following steps:
1. the pernicious gas materials such as adsorbent residual in sulfur hexafluoride breaker are pumped in air accumulator;
2. 25% ~ 35% the strong base solution of getting residual adsorbent mass fraction joins in air accumulator and carries out neutralization reaction with residual adsorbent;
3. the solution that 2. step is reacted to gained is poured in container;
4. 3. step is added respectively to CaCl in the solution in container
2solution, AlCl
3solution reacts;
5. 4. step is reacted in the solution of gained and add Ca (OH)
2solution, the processing time is 15～30 minutes, generates water-fast solid salt and nontoxic raffinate;
6. by step 5. gained solid salt and nontoxic raffinate by stirring, flocculation, precipitation be separated from solution, the processing time is 30 ~ 40 minutes, effective recycling, nontoxic raffinate safety dumping.
The order of the inorganic salt solution that 4. step adds is for first adding CaCl
2inorganic salt solution adds AlCl again
3inorganic salt solution.
The CaCl that 4. described step adds
2the solute mass fraction of inorganic salt solution is 8% ~ 10%, AlCl
3the solute mass fraction of inorganic salt solution is 3% ~ 5%.
6. step is (Na PO3) 6 for the material flocculating in flocculation step.
Advantage of the present invention is: because pernicious gas materials such as adopting chemical reagent and sulfur hexafluoride gas adsorbent reacts, thereby harmful gaseous matter is converted into nontoxic inorganic salts, has solved the leftover problem after traditional adsorbent processing; Because the reagent adopting is common chemical reagent, thereby saved the processing cost to pernicious gas material, so there is very large practical and popularizing value.
the specific embodiment
Below in conjunction with embodiment, the invention will be further described:
The processing method of a kind of sulfur hexafluoride breaker adsorbent of the present invention, comprises the following steps:
1. getting the pernicious gas materials such as adsorbent residual in sulfur hexafluoride breaker is pumped in air accumulator;
2. 25% ~ 35% the strong base solution of getting residual adsorbent mass fraction joins in air accumulator and carries out neutralization reaction with residual adsorbent, and 30% the strong base solution that the present embodiment is got residual adsorbent mass fraction carries out neutralization reaction;
3. the solution that 2. step is reacted to gained is poured in container;
4. 3. step is added respectively to CaCl in the solution in container
2solution, AlCl
3solution reacts, and the order of the inorganic salt solution adding is for first adding CaCl
2inorganic salt solution adds AlCl again
3inorganic salt solution, the CaCl adding
2the solute mass fraction of inorganic salt solution is 8% ~ 10%, AlCl
3the solute mass fraction of inorganic salt solution is 3% ~ 5%, the CaCl that the present embodiment adds
2the solute mass fraction of inorganic salt solution is 9%, AlCl
3the solute mass fraction of inorganic salt solution is 4%;
5. 4. step is reacted in the solution of gained and add Ca (OH)
2solution, the processing time is 15～30 minutes, generates water-fast solid salt and nontoxic raffinate;
6. by step 5. gained solid salt and nontoxic raffinate by stirring, flocculation, precipitation be separated from solution, the processing time is 30 ~ 40 minutes, effective recycling, nontoxic raffinate safety dumping is (Na PO3) 6 for the material flocculating in flocculation step.
Claims (4)
1. a processing method for sulfur hexafluoride breaker adsorbent, is characterized in that: comprise the following steps:
1. the pernicious gas materials such as adsorbent residual in sulfur hexafluoride breaker are pumped in air accumulator;
2. 25% ~ 35% the strong base solution of getting residual adsorbent mass fraction joins in air accumulator and carries out neutralization reaction with residual adsorbent;
3. the solution that 2. step is reacted to gained is poured in container;
4. 3. step is added respectively to CaCl in the solution in container
2solution, AlCl
3solution reacts;
5. 4. step is reacted in the solution of gained and add Ca (OH)
2solution, the processing time is 15～30 minutes, generates water-fast solid salt and nontoxic raffinate;
6. by step 5. gained solid salt and nontoxic raffinate by stirring, flocculation, precipitation be separated from solution, the processing time is 30 ~ 40 minutes, effective recycling, nontoxic raffinate safety dumping.
2. the processing method of a kind of sulfur hexafluoride breaker adsorbent according to claim 1, is characterized in that: the order of the inorganic salt solution that 4. step adds is for first adding CaCl
2inorganic salt solution adds AlCl again
3inorganic salt solution.
3. the processing method of a kind of sulfur hexafluoride breaker adsorbent according to claim 1, is characterized in that: the CaCl that 4. described step adds
2the solute mass fraction of inorganic salt solution is 8% ~ 10%, AlCl
3the solute mass fraction of inorganic salt solution is 3% ~ 5%.
4. the processing method of a kind of sulfur hexafluoride breaker adsorbent according to claim 1, is characterized in that: 6. step is (Na PO3) 6 for the material flocculating in flocculation step.
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| CN201210368935.6A CN103691273B (en) | 2012-09-27 | 2012-09-27 | Processing method of sulfur hexafluoride breaker gas adsorbent |
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| CN201210368935.6A CN103691273B (en) | 2012-09-27 | 2012-09-27 | Processing method of sulfur hexafluoride breaker gas adsorbent |
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| CN103691273A true CN103691273A (en) | 2014-04-02 |
| CN103691273B CN103691273B (en) | 2017-05-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190390A (en) * | 2014-09-23 | 2014-12-10 | 国家电网公司 | Treatment technology of sulfur hexafluoride adsorbent |
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| JP2000351611A (en) * | 1999-06-11 | 2000-12-19 | Mitsubishi Electric Corp | Apparatus for collecting sulfur hexafluoride and collecting method thereof |
| CN201051465Y (en) * | 2007-06-25 | 2008-04-23 | 安徽省电力科学研究院 | Processing device for high-voltage power grid arc extinction gas SF6 |
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| CN201988327U (en) * | 2011-03-08 | 2011-09-28 | 河南省日立信股份有限公司 | SF6 (sulfur hexafluoride) waste gas non-toxic treatment device |
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2012
- 2012-09-27 CN CN201210368935.6A patent/CN103691273B/en active Active
Patent Citations (6)
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| JP2000351611A (en) * | 1999-06-11 | 2000-12-19 | Mitsubishi Electric Corp | Apparatus for collecting sulfur hexafluoride and collecting method thereof |
| CN201051465Y (en) * | 2007-06-25 | 2008-04-23 | 安徽省电力科学研究院 | Processing device for high-voltage power grid arc extinction gas SF6 |
| CN201195090Y (en) * | 2007-09-19 | 2009-02-18 | 广东省电力工业局试验研究所 | Combined sulfur hexafluoride recycling gas purification treating device |
| CN201988327U (en) * | 2011-03-08 | 2011-09-28 | 河南省日立信股份有限公司 | SF6 (sulfur hexafluoride) waste gas non-toxic treatment device |
| CN202061542U (en) * | 2011-03-30 | 2011-12-07 | 河北省电力研究院 | Tail-gas purification device for sulfur hexafluoride catabolite detection |
| CN202212084U (en) * | 2011-07-27 | 2012-05-09 | 安徽省电力科学研究院 | Purification treatment system for sulfur hexafluoride gas decomposition product |
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| 王景濡等: "吸附剂在六氟化硫净化中的应用", 《黎明化工》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190390A (en) * | 2014-09-23 | 2014-12-10 | 国家电网公司 | Treatment technology of sulfur hexafluoride adsorbent |
| CN104190390B (en) * | 2014-09-23 | 2016-08-10 | 国家电网公司 | The process technique of sulfur hexafluoride adsorbent |
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| Publication number | Publication date |
|---|---|
| CN103691273B (en) | 2017-05-24 |
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