CN102826705A - Treatment method for tail slurry of blast furnace dust - Google Patents
Treatment method for tail slurry of blast furnace dust Download PDFInfo
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- CN102826705A CN102826705A CN2012103559969A CN201210355996A CN102826705A CN 102826705 A CN102826705 A CN 102826705A CN 2012103559969 A CN2012103559969 A CN 2012103559969A CN 201210355996 A CN201210355996 A CN 201210355996A CN 102826705 A CN102826705 A CN 102826705A
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- slags
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a treatment method for tail slurry of blast furnace dust, and relates to the field of metallurgical technologies. The method comprises the following steps of: pumping the tail slurry into a grit-water splitter so as to separate out coarse slags and low mud sewage, and collecting the coarse slags; feeding the low mud sewage into a mud-water separator, and dripping a flocculant into the mud-water separator, so that scattered fine particles form metal-containing flocculates; adsorbing and separating out the flocculates by using a magnetic disc of the mud-water separator, separating out water, gathering the flocculates so as to form fine slags, and collecting the fine slags; and feeding the separated water into a reservoir for standby. Compared with the prior art, 25-30 tons of tail mud products can be treated per hour, and the treatment method can be operated just by a person, thereby reducing the labor intensity of workers; and the method is high in separation efficiency and good in separation effect, the separated clean water can be recycled, and an effect of wastewater zero-discharging can be achieved.
Description
Technical field
The present invention relates to control the technology for gold field, the process method that especially a kind of tail slurry of the exhaust gas dust treating processes generation that contains iron powder and coke that is used for iron-making production is produced is handled again.
Background technology
At present, generally all be blast furnace dedusting ash to be added water make slurry to the treatment process of blast furnace dedusting ash, let slurry after first, second flotation, separate and obtain high-grade coke powder; And the slurry that the iron content of coming out in the first step, the second stage flotation machine is more pumps into first and second grade spiral chute again, after gravity preparation, magnetic separation, isolates high-grade iron powder respectively; Tail mud product through gained after the blast furnace dedusting ash tail slurry process press filtration last behind the above multipass sort then also is the raw material that the high-quality external combustion is baked bricks.The treatment process of common blast furnace dedusting ash tail slurry is to dry sale after being squeezed into cake through manual work with pressing machine.This treatment process to the blast furnace dedusting ash tail slurry has following deficiency: 1, the blast furnace dedusting ash tail slurry still contains a certain amount of carbon and iron and other impurity with the water that goes out after the pressing machine extruding, and is relatively more muddy; 2, need many people to operate, working strength of workers is big.
Summary of the invention
The technical problem that the present invention will solve provides a kind of treatment process of blast furnace dedusting ash tail slurry, and this method can solve the not good and big problem of labour intensity of prior art treatment effect.
The technical scheme that technical solution problem of the present invention is adopted is: the processing of this blast furnace dedusting ash tail slurry
Method may further comprise the steps:
A, pump into sand moisture to tail slurry and disembark, isolate thick slag and low dirt water, collect thick slag;
B, will hang down dirt water and send into separator for mud and water; In separator for mud and water, splash into flocculation agent and make formation such as dispersive particulate contain the throw out of metal, separator for mud and water disk fractionation by adsorption goes out said throw out, separates water outlet; The throw out set forms thin slag, collects this thin slag;
C, that the water separated gets into water reservoir is subsequent use.
In the technical scheme of the treatment process of above-mentioned blast furnace dedusting ash tail slurry, technical scheme can also be more specifically: the flocculation agent that splashes in the B step is 0.008% of low dirt water weight.
Further, the said sand moisture box height of disembarking and the ratio of width are 2:1.
Owing to adopted technique scheme, the present invention compared with prior art, the beneficial effect that has is:
1, adopt the mechanize mode to separate tail slurry, its separation efficiency is high, good separating effect, and isolated clear water can be recycled, and reaches wastewater zero discharge; 2, per hour can handle tail mud product 25-30 ton, only need 1 people to operate, alleviate working strength of workers.
Description of drawings
Fig. 1 is the structural representation that the sand moisture of the embodiment of the invention is disembarked.
Fig. 2 is the left view of Fig. 1.
Embodiment
The treatment process of this blast furnace dedusting ash tail slurry may further comprise the steps: tail slurry is at first pumped into sand moisture disembark, isolate thick slag and low dirt water, collect thick slag; The box height H that sand moisture is disembarked and the ratio of width W are preferably 2:1, like Fig. 1, shown in Figure 2; To hang down dirt water and send into the mud water segregator again; 0.008% the flocculation agent that in separator for mud and water, splashes into low dirt water weight makes formation such as dispersive particulate contain the throw out of metal; Separator for mud and water disk fractionation by adsorption goes out said throw out; Separate water outlet, the throw out set forms thin slag, collects this thin slag; The thick slag of collecting is tail mud product with thin slag.It is subsequent use that the water of separating gets into water reservoir.
The treatment process of this blast furnace dedusting ash tail slurry per hour can be handled tail mud product 25-30 ton, only needs 1 people to operate, and has alleviated working strength of workers; Separation efficiency is high, good separating effect, and isolated clear water can be recycled, and reaches wastewater zero discharge.
Claims (3)
1. the treatment process of a blast furnace dedusting ash tail slurry is characterized in that may further comprise the steps:
A, pump into sand moisture to tail slurry and disembark, isolate thick slag and low dirt water, collect thick slag;
B, will hang down dirt water and send into separator for mud and water; In separator for mud and water, splash into flocculation agent and make formation such as dispersive particulate contain the throw out of metal, separator for mud and water disk fractionation by adsorption goes out said throw out, separates water outlet; The throw out set forms thin slag, collects this thin slag;
C, that the water separated gets into water reservoir is subsequent use.
2. the treatment process of blast furnace dedusting ash tail slurry according to claim 1 is characterized in that: the flocculation agent that splashes in the B step is 0.008% of low dirt water weight.
3. the treatment process of blast furnace dedusting ash tail slurry according to claim 1 and 2 is characterized in that: the box height that said sand moisture is disembarked and the ratio of width are 2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210355996.9A CN102826705B (en) | 2012-09-24 | 2012-09-24 | Treatment method for tail slurry of blast furnace dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210355996.9A CN102826705B (en) | 2012-09-24 | 2012-09-24 | Treatment method for tail slurry of blast furnace dust |
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| Publication Number | Publication Date |
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| CN102826705A true CN102826705A (en) | 2012-12-19 |
| CN102826705B CN102826705B (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210355996.9A Active CN102826705B (en) | 2012-09-24 | 2012-09-24 | Treatment method for tail slurry of blast furnace dust |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966410A (en) * | 2017-03-29 | 2017-07-21 | 重庆赛迪热工环保工程技术有限公司 | Rotary hearth furnace flue gas ash removal ash handling process |
| CN107001081A (en) * | 2015-03-13 | 2017-08-01 | 富士电机株式会社 | The processing method of washer draining and the processing unit of washer draining |
| CN108473346A (en) * | 2016-03-08 | 2018-08-31 | 富士电机株式会社 | Drainage processing method and disintegrating system in waste pipe |
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| CN101024548A (en) * | 2006-02-20 | 2007-08-29 | 曹健 | Lake dredging bottom-mud dewatering integrated treatment technology |
| CN101538096A (en) * | 2009-04-24 | 2009-09-23 | 北京国油联合油田技术服务有限公司 | Method for processing waste slurry |
| CN102644302A (en) * | 2012-04-06 | 2012-08-22 | 杭州银江环保科技有限公司 | Sludge processing system for watercourses and lakes and processing method thereof |
-
2012
- 2012-09-24 CN CN201210355996.9A patent/CN102826705B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024548A (en) * | 2006-02-20 | 2007-08-29 | 曹健 | Lake dredging bottom-mud dewatering integrated treatment technology |
| CN101538096A (en) * | 2009-04-24 | 2009-09-23 | 北京国油联合油田技术服务有限公司 | Method for processing waste slurry |
| CN102644302A (en) * | 2012-04-06 | 2012-08-22 | 杭州银江环保科技有限公司 | Sludge processing system for watercourses and lakes and processing method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107001081A (en) * | 2015-03-13 | 2017-08-01 | 富士电机株式会社 | The processing method of washer draining and the processing unit of washer draining |
| US10618827B2 (en) | 2015-03-13 | 2020-04-14 | Fuji Electric Co., Ltd. | Scrubber wastewater treatment method and scrubber wastewater treatment device |
| CN108473346A (en) * | 2016-03-08 | 2018-08-31 | 富士电机株式会社 | Drainage processing method and disintegrating system in waste pipe |
| US10800681B2 (en) | 2016-03-08 | 2020-10-13 | Fuji Electric Co., Ltd. | Wastewater treatment method and wastewater treatment system |
| CN108473346B (en) * | 2016-03-08 | 2021-11-30 | 富士电机株式会社 | Wastewater treatment method and wastewater treatment system |
| CN106966410A (en) * | 2017-03-29 | 2017-07-21 | 重庆赛迪热工环保工程技术有限公司 | Rotary hearth furnace flue gas ash removal ash handling process |
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| CN102826705B (en) | 2014-07-09 |
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Inventor after: Mo Mingjiao Inventor after: Pan Zhibin Inventor after: Zhang Qingzhong Inventor after: Long Shunhong Inventor after: Lu Shan Inventor after: Zhou Yongxin Inventor after: Liu Shun Inventor after: Zheng Wenhui Inventor before: Mo Mingjiao Inventor before: Pan Zhibin Inventor before: Zhang Qingzhong Inventor before: Long Shunhong Inventor before: Lu Shan Inventor before: Zhou Yongxin Inventor before: Liu Shun Inventor before: Zheng Wenhui |
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Effective date of registration: 20171106 Address after: 545002 the Guangxi Zhuang Autonomous Region Liuzhou North Bird Road No. 117 Patentee after: Guangxi Liuzhou environmental Limited by Share Ltd Address before: 545002 the Guangxi Zhuang Autonomous Region Liuzhou North Bird Road No. 117 Patentee before: Liuzhou Huanyuanli Environment Resource Technology Development Co., Ltd. |