CN102674720B - Preparation technology for extracting carbon powder, iron core powder, primary pulverized fuel ash and secondary pulverized fuel ash from pulverized fuel ash - Google Patents
Preparation technology for extracting carbon powder, iron core powder, primary pulverized fuel ash and secondary pulverized fuel ash from pulverized fuel ash Download PDFInfo
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- CN102674720B CN102674720B CN201210183445.9A CN201210183445A CN102674720B CN 102674720 B CN102674720 B CN 102674720B CN 201210183445 A CN201210183445 A CN 201210183445A CN 102674720 B CN102674720 B CN 102674720B
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- pulverized fuel
- fuel ash
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention relates to a preparation technology for extracting carbon powder, iron core powder, primary pulverized fuel ash and secondary pulverized fuel ash from pulverized fuel ash. The preparation technology is a technology which is used for separating and recycling the carbon powder, iron core powder and low ignition loss pulverized fuel ash from the pulverized fuel ash. The pulverized fuel ash raw material in the technology is subjected to first micro-bubble flotation and second micro-bubble flotation, and then the raw material is separated and recycled through magnetic seperation to obtain the carbon powder, iron core powder, primary pulverized fuel ash and secondary pulverized fuel ash; simultaneously, all filtrate is recycled, thereby leading all the pulverized fuel ash stacked for yeas in a thermal power plant to be treated; and the preparation technology greatly tremendously increases environmental benefit and social benefit while bringing about very considerable economic benefit.
Description
Technical field:
The invention belongs to a kind of available stock energy-conserving and environment-protective material comprehensive utilization technique, be specifically related to a kind of carbon dust, powdered iron ore, first level flour coal ash and second class powered coal ash preparation technology of extracting from flyash.It is carbon dust in a kind of Separation and Recovery flyash, powdered iron ore, for the preparation of the flyash technique in cement and concrete.
Background technology:
As everyone knows, flyash is the main solid waste of receiving the Xi Hui，Shi coal-burning power plant discharge of catching in the flue gas from coal combustion.The main oxides of power plants flyash consists of: SiO
2, Al
2o
3, FeO, Fe
2o
3, CaO, TiO
2deng.Flyash is one of industrial residue that the current discharge capacity of China is larger, and along with the development of power industry, the flyash quantity discharged of coal-burning power plant increases year by year.Nineteen ninety-five, flyash quantity discharged reached 1.25 tons, within 2000, was about 1.5 hundred million tons, the development of the national economy and the ecotope that surpass 3 Yi Dun，Gei China caused to huge pressure in 2010.The eighties rises, and countries in the world conduct a research to the comprehensive utilization of flyash one after another, and flyash is widely used in all departments such as building work, building materials, water conservancy, main application is for concrete admixture, make pulverized fuel ash cement, flyash brick, agricultural composite fertilizer and body of wall stopping composition.A prerequisite of the various high added value purposes of development flyash is the carbon contents that reduce in flyash, reduces loss on ignition, and the powdered iron ore in Separation and Recovery flyash is also an important directions of comprehensive utilization flyash in addition.But it is social economy's service that prior art also fails to fully utilize fully flyash.
Summary of the invention:
The object of the invention is to provide a kind of according to the deficiency of above-mentioned existence and from flyash, extract carbon dust, powdered iron ore first level flour coal ash and second class powered coal ash technique, therefrom reclaim and to obtain carbon dust, powdered iron ore, first level flour coal ash and second class powered coal ash can be used for concrete, cement.Thereby the flyash that thermal power plant stacks for many years is all processed, when bringing extremely considerable economic benefit, greatly improved environmental benefit, social benefit.
Technical scheme of the present invention is achieved in that it is the powdered coal ash in ash disposal area to be delivered to agitation vat through diving shell pump cut slightly, adds flotation agent, stirs; By the first shell pump, be delivered to the first micro-bubble flotation machine, sub-elect the first concentrate and the first mine tailing, the first mine tailing is delivered to the second micro-bubble flotation machine by the second shell pump, sub-elects the second concentrate and the second mine tailing, the first concentrate and the second concentrate mix, after vacuum filter dehydration as carbon dust product; The second mine tailing obtains powdered iron ore and the 3rd mine tailing through magnetic separator Separation and Recovery, powdered iron ore precipitation is dried rear as powdered iron ore finished product, the 3rd mine tailing is delivered to thickner by the 3rd shell pump, after concentrated, the 3rd mine tailing is divided into the supernatant liquor on thickner top and the dregs of thickner bottom, supernatant liquor is from being left to ash disposal area as recirculated water, dregs is delivered to filter by the 4th shell pump, the filter cake obtaining after filtration and filtrate, and filtrate regulates floatation concentration from flowing to the first micro-bubble flotation machine.After filter cake drying machine is dry, by travelling belt, be delivered to grey storehouse, then be delivered to powder separating machine by chapelet, after sorting, obtain can be used for cement and concrete first level flour coal ash and second class powered coal ash.In the first micro-bubble flotation machine of the present invention and the second micro-bubble flotation machine, be provided with multilayer bubbling plate, the hole dimension of the bubbling plate of the first micro-bubble flotation machine is less than the hole dimension of the bubbling plate of the second micro-bubble flotation machine.
In technique scheme, various device all can adopt the equipment of prior art.Diving shell pump, first, second, third, fourth shell pump all adopt Shijiazhuang Industrial Water Pump Factory's currently available products, agitation vat, thickner adopt Xinxiang City, Henan Weiyuan Machinery Co., Ltd. currently available products, flotation agent is common flotation machine on market, filter adopts the GD30/3.0-G folding belt vacuum-type drum filter of Gongda Chemical Equipment Co., Ltd., Shijiazhuang, magnetic separator adopts Weifang Shuan Gu Machinery Co., Ltd. currently available products, and chapelet adopts the currently available products of Hengyang continuous conveyor tool company limited.
Accompanying drawing explanation:
Fig. 1 is technological process of production skeleton diagram of the present invention
Embodiment:
Referring to Fig. 1, technique of the present invention is: the powdered coal ash in ash disposal area is delivered to agitation vat through diving shell pump and cuts slightly, add flotation agent, stir as flotation feed; Flotation feed is delivered to the first micro-bubble flotation machine by the first shell pump, sub-elect the first concentrate and the first mine tailing, the first mine tailing is delivered to the second micro-bubble flotation machine by the second shell pump, sub-elect the second concentrate and the second mine tailing, the first concentrate and the second concentrate mix, after vacuum filter dehydration as carbon dust product; The second mine tailing obtains powdered iron ore and the 3rd mine tailing through magnetic separator Separation and Recovery, and powdered iron ore precipitation is dried rear as powdered iron ore finished product, and the 3rd mine tailing is from being left to concentration basin; The 3rd mine tailing is delivered to thickner by the 3rd shell pump, after concentrated, the 3rd mine tailing is divided into the supernatant liquor on thickner top and the dregs of thickner bottom, supernatant liquor is from being left to ash disposal area as recirculated water, dregs is delivered to filter by the 4th shell pump, the filter cake obtaining after filtration and filtrate, filter cake is delivered to mine tailing canopy by the first travelling belt, and filtrate regulates floatation concentration from the floatation feed bucket that flow to the first micro-bubble flotation machine.After filter cake drying machine is dry, by the second travelling belt, be delivered to original ash bank, then be delivered to powder separating machine by chapelet, after sorting, obtain can be used for cement and concrete first level flour coal ash and second class powered coal ash.
Claims (1)
1. from flyash, extract the preparation technology of carbon dust, powdered iron ore, first level flour coal ash and second class powered coal ash, it is carbon dust, powdered iron ore in a kind of Separation and Recovery flyash, technique for the preparation of the flyash in cement and concrete, it is characterized in that: the powdered coal ash in ash disposal area is delivered to agitation vat through diving shell pump and cuts slightly, add flotation agent, stir, by the first shell pump, be delivered to the first micro-bubble flotation machine, sub-elect the first concentrate and the first mine tailing, the first mine tailing is delivered to the second micro-bubble flotation machine by the second shell pump, sub-elects the second concentrate and the second mine tailing, the first concentrate and the second concentrate mix, after vacuum filter dehydration as carbon dust product, the second mine tailing obtains powdered iron ore and the 3rd mine tailing through magnetic separator Separation and Recovery, powdered iron ore precipitation is dried rear as powdered iron ore finished product, the 3rd mine tailing is delivered to thickner by the 3rd shell pump, after concentrated, the 3rd mine tailing is divided into the supernatant liquor on thickner top and the dregs of thickner bottom, supernatant liquor is from flowing to ash disposal area as recirculated water, dregs is delivered to filter by the 4th shell pump, the filter cake obtaining after filtration and filtrate, filtrate regulates floatation concentration from flowing to the first micro-bubble flotation machine, after filter cake drying machine is dry, by travelling belt, be delivered to grey storehouse, by chapelet, be delivered to powder separating machine again, after sorting, obtain for cement and concrete first level flour coal ash and second class powered coal ash, in the first micro-bubble flotation machine and the second micro-bubble flotation machine, be provided with multilayer bubbling plate, the hole dimension of the bubbling plate of the first micro-bubble flotation machine is greater than the hole dimension of the bubbling plate of the second micro-bubble flotation machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210183445.9A CN102674720B (en) | 2012-06-06 | 2012-06-06 | Preparation technology for extracting carbon powder, iron core powder, primary pulverized fuel ash and secondary pulverized fuel ash from pulverized fuel ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210183445.9A CN102674720B (en) | 2012-06-06 | 2012-06-06 | Preparation technology for extracting carbon powder, iron core powder, primary pulverized fuel ash and secondary pulverized fuel ash from pulverized fuel ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102674720A CN102674720A (en) | 2012-09-19 |
| CN102674720B true CN102674720B (en) | 2014-02-19 |
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| CN201210183445.9A Expired - Fee Related CN102674720B (en) | 2012-06-06 | 2012-06-06 | Preparation technology for extracting carbon powder, iron core powder, primary pulverized fuel ash and secondary pulverized fuel ash from pulverized fuel ash |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699013B (en) * | 2012-05-09 | 2015-01-21 | 山东莱芜煤矿机械有限公司 | Pulverized fuel ash comprehensive treatment technique |
| RU2732886C2 (en) * | 2019-03-15 | 2020-09-24 | Игорь Григорьевич Тертышный | Method for separation of components contained therein from ash |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098425A (en) * | 1993-08-04 | 1995-02-08 | 邓端云 | Utilize coal ash to produce the method for carbon black and white carbon black |
| CN101306926A (en) * | 2008-06-20 | 2008-11-19 | 北京世纪地和科技有限公司 | Process for abstracting floating air ball from fly ash or slag |
| CN202224430U (en) * | 2011-06-11 | 2012-05-23 | 山东莱芜煤矿机械有限公司 | Equipment combination for pulverized fuel ash comprehensive treatment technology |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100006010A1 (en) * | 2006-03-01 | 2010-01-14 | Ihor Hinczak | Matrix for masonry elements and method of manufacture thereof |
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2012
- 2012-06-06 CN CN201210183445.9A patent/CN102674720B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098425A (en) * | 1993-08-04 | 1995-02-08 | 邓端云 | Utilize coal ash to produce the method for carbon black and white carbon black |
| CN101306926A (en) * | 2008-06-20 | 2008-11-19 | 北京世纪地和科技有限公司 | Process for abstracting floating air ball from fly ash or slag |
| CN202224430U (en) * | 2011-06-11 | 2012-05-23 | 山东莱芜煤矿机械有限公司 | Equipment combination for pulverized fuel ash comprehensive treatment technology |
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| CN102674720A (en) | 2012-09-19 |
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