CN102910754A - Treatment process of boiler dusting water - Google Patents
Treatment process of boiler dusting water Download PDFInfo
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- CN102910754A CN102910754A CN201210440899XA CN201210440899A CN102910754A CN 102910754 A CN102910754 A CN 102910754A CN 201210440899X A CN201210440899X A CN 201210440899XA CN 201210440899 A CN201210440899 A CN 201210440899A CN 102910754 A CN102910754 A CN 102910754A
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Abstract
The invention provides a treatment process of boiler dusting water, which comprises the steps as follows: the boiler dusting water enters an advection dust settling basin to be subjected to settling treatment; supernatant fluid enters a clean water basin to be recycled for boiler dusting; dust sludge deposited at the bottom of the advection dust settling basin is scrapped by a sludge and slag scraper into a dust sludge bucket and then is lifted and conveyed by a submersible sludge pump to a sand-water separator; floating slag on the liquid level of the advection dust settling basin is scrapped by the sludge and slag scraper into a slag collection tank and then enters the sand-water separator through a slag discharge pipe to be separated; separated water flows back to the advection dust settling basin; and dust sludge is discharged to a dust sludge field.
Description
Technical field:
The present invention relates to the processing of trade effluent, specifically belong to a kind for the treatment of process of boiler water by removing dust.
Background technology:
China has more than 50 ten thousand of various Industrial Boilers and life coal firing boilers at present, and the 30-40% that accounts for of wet-scrubbing equipment is installed in these boilers.The flue dust that boiler produces is after wet-scrubbing equipment is processed, although flue dust has obtained purification, turbidity, suspended substance and CODcr are dense in the dust waste water, and quantity discharged is large.At present, simple precipitation process is mainly adopted in processing to boiler water by removing dust, to its be deposited in plaster at the bottom of the pond adopt grab crane with its catch with moisture from, this method investment is high, weak effect, operation inconvenience affects the plant environment health, and due to limited conditions, only there is the sub-fraction boiler water by removing dust to be recycled for boiler dusting, efflux after the simple precipitation process of all the other most of processes, not only waste water source and serious environment pollution.Therefore, the cyclically utilizing treatment technology of research boiler water by removing dust is significant to solving the aspects such as shortage of water resources and protection of the environment.
Summary of the invention:
The object of the present invention is to provide a kind for the treatment of process of boiler water by removing dust, this technical process is simple, and cost is low, and is effective, the water outlet boiler dusting that is back to capable of circulation, and saving water resource is easy to promote.
The treatment system of a kind of boiler water by removing dust provided by the invention comprises advection ash settling basin and clean water basin, described advection ash settling basin, minute commutating zone, settling region and exhalant region; Establish the rectification wall between commutating zone and the settling region; Handicapping slag wall between settling region and the exhalant region, resistance slag wall arranged the water hole mouth; The settling region arranges the running type mud and slag scraping machine, and the head end top of settling region arranges dreg collecting slot, and the bottom arranges grey bucket, in the grey bucket sludge pump is set;
The surface load that described advection ash settling basin adopts is 0.7-2.2m
3/ m
2H, the residence time is 2.0-3.0h, and advection ash settling basin long-width ratio is 3:1-5:1, and length-depth ratio is 8:1-12:1.
The treatment process of a kind of boiler water by removing dust provided by the invention, adopt the treatment system of boiler water by removing dust described above, at first boiler water by removing dust is introduced into the commutating zone of advection ash settling basin by inlet channel, flow into the settling region through the rectification wall again and carry out precipitation process, supernatant liquor after the precipitation process flows into exhalant region by the water hole mouth of crossing that resistance slag wall arranges, flow into clean water basin through rising pipe again, the water cycle of clean water basin is back to boiler dusting; The plaster of advection ash settling basin settling region deposition is scraped to grey bucket by mud and slag scraping machine, plaster promotes and is delivered to grit water separator through the diving sludge pump again, scum silica frost on the settling region liquid level is scraped in the dreg collecting slot by mud and slag scraping machine, also enter grit water separator through scum pipe again, separate, water after the separation is back to the commutating zone of advection ash settling basin, and plaster is discharged to the plaster field, outward transport.
Compared with prior art the present invention has following advantage:
1, this technique is not established equalizing tank, and boiler water by removing dust directly enters in the advection ash settling basin, has avoided the alluvial of equalizing tank plaster, the inconvenient difficulty of cleaning, and has saved occupation of land.
2, open channel water inlet, the line clogging that plaster deposits and causes in the time of can avoiding adopting pipe water are adopted in the water inlet of advection ash settling basin in pipeline.
3, the advection ash settling basin can play precipitating action and regulating effect simultaneously.
4, in the advection ash settling basin, mud and slag scraping machine is set, the plaster that is deposited at the bottom of the pond is scraped in the grey bucket, promote and be delivered to grit water separator through the diving sludge pump again, and do not adopt grab crane cleaning mud, avoid the plant environment health is impacted; Scum silica frost on the advection ash settling basin liquid level is scraped in the dreg collecting slot by mud and slag scraping machine, enters grit water separator through scum pipe again and separates.
5, plaster water ratio after grit water separator separates is low, has reduced the plaster volume, convenient outward transport.
6, technical process of the present invention is simple, and cost is low, and is effective, and operational management is convenient, the water outlet boiler dusting that is back to capable of circulation, and saving water resource is easy to promote.
Description of drawings:
The structural representation of Fig. 1 advection ash settling basin
1-inlet channel among the figure; The 2-commutating zone; 3-rectification wall; The 4-dreg collecting slot; The 5-settling region; The 6-mud and slag scraping machine; 7-crosses the water hole mouth; 8-resistance slag wall; The 9-exhalant region; The 10-rising pipe; 11-ash bucket; The 12-sludge pump; The 13-shore pipe.
The processing technological flow schematic diagram of Fig. 2 boiler water by removing dust
Embodiment
A kind for the treatment of system of boiler water by removing dust comprises advection ash settling basin and clean water basin, described advection ash settling basin, as shown in Figure 1, minute commutating zone 2, settling region 5 and exhalant region 9; Establish rectification wall 3 between commutating zone 2 and the settling region 5; Handicapping slag wall 8 between settling region 5 and the exhalant region 9, resistance slag wall 8 arranged water hole mouth 7; Settling region 5 arranges running type mud and slag scraping machine 6, and the head end top of settling region 5 arranges dreg collecting slot 4, and the bottom arranges grey bucket 11, in the grey bucket 11 sludge pump 12 is set;
The surface load that the advection ash settling basin adopts is 0.7m
3/ m
2H, hydraulic detention time are 3.0h, and advection ash settling basin long-width ratio is 4.2, and length-depth ratio is 10.0.
A kind for the treatment of process (see figure 2) of boiler water by removing dust, adopt the treatment system of boiler water by removing dust described above, at first boiler water by removing dust is introduced into the commutating zone 2 of advection ash settling basin by inlet channel 1, flow into settling region 5 through rectification wall 3 again and carry out precipitation process, supernatant liquor after the precipitation process flows into exhalant region 9 by the water hole mouth 7 of crossing that resistance slag wall 8 arranges, flow into clean water basin through rising pipe 10 again, the water cycle of clean water basin is back to boiler dusting; The plaster of advection ash settling basin settling region 5 depositions is scraped to grey bucket 11 by mud and slag scraping machine 6, plaster promotes and is delivered to grit water separator through diving sludge pump 12 again, scum silica frost on settling region 5 liquid levels is scraped in the dreg collecting slot 4 by mud and slag scraping machine 6, also enter grit water separator through scum pipe again, separate, water after the separation is back to the commutating zone 2 of advection ash settling basin, and plaster is discharged to the plaster field, outward transport.
CODcr≤the 60mg/L of water outlet after processing, SS≤30mg/L can reach the boiler dusting water supply standard, the boiler dusting that is back to capable of circulation.
Claims (2)
1. the treatment system of a boiler water by removing dust comprises advection ash settling basin and clean water basin, it is characterized in that, described advection ash settling basin, minute commutating zone, settling region and exhalant region; Establish the rectification wall between commutating zone and the settling region; Handicapping slag wall between settling region and the exhalant region, resistance slag wall arranged the water hole mouth; The settling region arranges the running type mud and slag scraping machine, and the head end top of settling region arranges dreg collecting slot, and the bottom arranges grey bucket, in the grey bucket sludge pump is set;
The surface load that described advection ash settling basin adopts is 0.7-2.2m
3/ m
2H, the residence time is 2.0-3.0h, and advection ash settling basin long-width ratio is 3:1-5:1, and length-depth ratio is 8:1-12:1.
2. the treatment process of a boiler water by removing dust, it is characterized in that, adopt the treatment system of boiler water by removing dust claimed in claim 1, at first boiler water by removing dust is introduced into the commutating zone of advection ash settling basin by inlet channel, flow into the settling region through the rectification wall again and carry out precipitation process, supernatant liquor after the precipitation process flows into exhalant region by the water hole mouth of crossing that resistance slag wall arranges, and flows into clean water basin through rising pipe again, and the water cycle of clean water basin is back to boiler dusting; The plaster of advection ash settling basin settling region deposition is scraped to grey bucket by mud and slag scraping machine, plaster promotes and is delivered to grit water separator through the diving sludge pump again, scum silica frost on the settling region liquid level is scraped in the dreg collecting slot by mud and slag scraping machine, also enter grit water separator through scum pipe again, separate, water after the separation is back to the commutating zone of advection ash settling basin, and plaster is discharged to the plaster field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210440899XA CN102910754B (en) | 2012-11-07 | 2012-11-07 | Treatment process of boiler dusting water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210440899XA CN102910754B (en) | 2012-11-07 | 2012-11-07 | Treatment process of boiler dusting water |
Publications (2)
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|---|---|
| CN102910754A true CN102910754A (en) | 2013-02-06 |
| CN102910754B CN102910754B (en) | 2013-11-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210440899XA Expired - Fee Related CN102910754B (en) | 2012-11-07 | 2012-11-07 | Treatment process of boiler dusting water |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105107241A (en) * | 2015-09-11 | 2015-12-02 | 广州擎天材料科技有限公司 | Secondary sedimentation tank system capable of improving organic wastewater effluent quality and processing method |
| CN106943777A (en) * | 2017-05-08 | 2017-07-14 | 科利特环能科技（大连）有限公司 | A kind of water-seal slag-scraping device containing coke powder for the coal gas of quenching industry |
| CN108116892A (en) * | 2016-11-29 | 2018-06-05 | 中冶京诚工程技术有限公司 | Blast furnace dedusting ash conveying device and method |
| CN114396611A (en) * | 2021-12-06 | 2022-04-26 | 淄博昂洋节能环保科技有限公司 | Energy-saving and carbon-reducing process for steam-injection boiler of oil field |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001062489A (en) * | 1999-08-31 | 2001-03-13 | Kawasaki Steel Corp | Removing method of deposited scale in dust collecting water circulation line |
| CN2636940Y (en) * | 2003-09-04 | 2004-09-01 | 姜峰 | Advection type precipitation poad |
| CN2836892Y (en) * | 2005-05-25 | 2006-11-15 | 南昌大学 | Filter device for boiler dedusting and water-treatment |
| CN101066510A (en) * | 2007-05-28 | 2007-11-07 | 奎屯准噶尔热力有限责任公司 | Automatic ash-water separator |
-
2012
- 2012-11-07 CN CN201210440899XA patent/CN102910754B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001062489A (en) * | 1999-08-31 | 2001-03-13 | Kawasaki Steel Corp | Removing method of deposited scale in dust collecting water circulation line |
| CN2636940Y (en) * | 2003-09-04 | 2004-09-01 | 姜峰 | Advection type precipitation poad |
| CN2836892Y (en) * | 2005-05-25 | 2006-11-15 | 南昌大学 | Filter device for boiler dedusting and water-treatment |
| CN101066510A (en) * | 2007-05-28 | 2007-11-07 | 奎屯准噶尔热力有限责任公司 | Automatic ash-water separator |
Non-Patent Citations (2)
| Title |
|---|
| 《节能》 19940907 马兴富等 "锅炉除尘水的治理及应用" 1-2 , 第9期 * |
| 马兴富等: ""锅炉除尘水的治理及应用"", 《节能》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105107241A (en) * | 2015-09-11 | 2015-12-02 | 广州擎天材料科技有限公司 | Secondary sedimentation tank system capable of improving organic wastewater effluent quality and processing method |
| CN108116892A (en) * | 2016-11-29 | 2018-06-05 | 中冶京诚工程技术有限公司 | Blast furnace dedusting ash conveying device and method |
| CN106943777A (en) * | 2017-05-08 | 2017-07-14 | 科利特环能科技（大连）有限公司 | A kind of water-seal slag-scraping device containing coke powder for the coal gas of quenching industry |
| CN114396611A (en) * | 2021-12-06 | 2022-04-26 | 淄博昂洋节能环保科技有限公司 | Energy-saving and carbon-reducing process for steam-injection boiler of oil field |
| CN114396611B (en) * | 2021-12-06 | 2024-04-09 | 淄博昂洋节能环保科技有限公司 | Energy-saving and carbon-reducing process for oilfield steam injection boiler |
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| CN102910754B (en) | 2013-11-20 |
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