CN102674720A - 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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- CN102674720A CN102674720A CN2012101834459A CN201210183445A CN102674720A CN 102674720 A CN102674720 A CN 102674720A CN 2012101834459 A CN2012101834459 A CN 2012101834459A CN 201210183445 A CN201210183445 A CN 201210183445A CN 102674720 A CN102674720 A CN 102674720A
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- pulverized fuel
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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 from flyash, extracting.It is the flyash technology that carbon dust, powdered iron ore, preparation are used for cement and concrete in a kind of Separation and Recovery flyash.
Background technology:
As everyone knows, flyash is to receive the thin ash of catching the flue gas behind coal combustion, is the main solid waste that the coal-burning power plant discharges.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 bigger industrial residue of the current discharge capacity of China, and along with development of electric power industry, the flyash quantity discharged of coal-burning power plant increases year by year.Nineteen ninety-five, the flyash quantity discharged reached 1.25 tons, was about 1.5 hundred million tons in 2000, will cause huge pressure for the development of the national economy and the ecotope of China above 300,000,000 tons 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 worker, building materials, water conservancy; Main application is to be used 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 the flyash, reduces loss on ignition, and the powdered iron ore in the Separation and Recovery flyash also is 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:
To the objective of the invention is deficiency according to above-mentioned existence provide a kind of and from flyash, extract carbon dust, powdered iron ore first level flour coal ash and second class powered coal ash technology, therefrom reclaim and obtain carbon dust, powdered iron ore, and first level flour coal ash and second class powered coal ash can be used for concrete, cement.Thereby the flyash that thermal power plant is stacked is for many years all handled, and when bringing extremely considerable economic, has greatly improved environmental benefit, social benefit.
Technical scheme of the present invention is achieved in that it is the powdered coal ash in the ash disposal area to be delivered to agitation vat through the diving shell pump cut slightly, adds flotation agent, stirs; Be delivered to first micro-bubble flotation machine by first shell pump; Sub-elect first concentrate and first mine tailing, first mine tailing is delivered to second micro-bubble flotation machine by second shell pump, sub-elects second concentrate and second mine tailing; First concentrate and second concentrate mix, after the vacuum filter dehydration as the carbon dust product; Second mine tailing obtains powdered iron ore and the 3rd mine tailing through the magnetic separator Separation and Recovery; The powdered iron ore deposition is dried the back as the powdered iron ore finished product, and the 3rd mine tailing is delivered to thickner by the 3rd shell pump, concentrates back the 3rd mine tailing and is divided into the supernatant on thickner top and the dregs of thickner bottom; Supernatant is from being left to ash disposal area as recirculated water; Dregs is delivered to filter by the 4th shell pump, filter cake that obtains after the filtration and filtrating, and filtrating is regulated floatation concentration from flowing to first micro-bubble flotation machine.Filter cake is delivered to grey storehouse by travelling belt after the drying machine drying, be delivered to powder separating machine by chapelet again, obtains can be used for cement and concrete first level flour coal ash and second class powered coal ash after the sorting.Be provided with multilayer bubbling plate in first micro-bubble flotation machine of the present invention and second micro-bubble flotation machine, the hole dimension of the bubbling plate of first micro-bubble flotation machine is less than the hole dimension of the bubbling plate of second micro-bubble flotation machine.
In the 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 Weiyuan, Xinxiang City, Henan machinery ltd currently available products; Flotation agent is common flotation machine on the market; Filter adopts the GD30/3.0-G folding belt vacuum-type drum filter of Gongda Chemical Equipment Co., Ltd., Shijiazhuang; Magnetic separator adopts the two solid mechanical ltd in Weifang currently available products, and chapelet adopts the currently available products of Hengyang continuous Transport Machinery ltd.
Description of drawings:
Fig. 1 is a technological process of production skeleton diagram of the present invention
Embodiment:
Referring to Fig. 1, technology of the present invention is: the powdered coal ash in the ash disposal area is delivered to agitation vat through the diving shell pump cuts slightly, add flotation agent, stirring is flotation feed; Flotation feed is delivered to first micro-bubble flotation machine by first shell pump; Sub-elect first concentrate and first mine tailing; First mine tailing is delivered to second micro-bubble flotation machine by second shell pump; Sub-elect second concentrate and second mine tailing, first concentrate and second concentrate mix, after the vacuum filter dehydration as the carbon dust product; Second mine tailing obtains powdered iron ore and the 3rd mine tailing through the magnetic separator Separation and Recovery, and the powdered iron ore deposition is dried the back as the 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; Concentrate back the 3rd mine tailing and be divided into the supernatant on thickner top and the dregs of thickner bottom; Supernatant is from being left to ash disposal area as recirculated water, and dregs is delivered to filter by the 4th shell pump, filter cake that obtains after the filtration and filtrating; Filter cake is delivered to the mine tailing canopy by first travelling belt, and filtrating is regulated floatation concentration from the floatation feed bucket that flow to first micro-bubble flotation machine.Filter cake is delivered to original ash bank by second travelling belt after the drying machine drying, be delivered to powder separating machine by chapelet again, obtains can be used for cement and concrete first level flour coal ash and second class powered coal ash after the sorting.
Claims (2)
1. from flyash, extract carbon dust, powdered iron ore, first level flour coal ash and second class powered coal ash preparation technology; It is carbon dust, a powdered iron ore in a kind of Separation and Recovery flyash; Preparation is used for the technology of the flyash of cement and concrete; It is characterized in that: the powdered coal ash in the ash disposal area is delivered to agitation vat through the diving shell pump cuts slightly, add flotation agent, stir; Be delivered to first micro-bubble flotation machine by first shell pump; Sub-elect first concentrate and first mine tailing, first mine tailing is delivered to second micro-bubble flotation machine by second shell pump, sub-elects second concentrate and second mine tailing; First concentrate and second concentrate mix, after the vacuum filter dehydration as the carbon dust product; Second mine tailing obtains powdered iron ore and the 3rd mine tailing through the magnetic separator Separation and Recovery; The powdered iron ore deposition is dried the back as the powdered iron ore finished product; The 3rd mine tailing is delivered to thickner by the 3rd shell pump, concentrates back the 3rd mine tailing and is divided into the supernatant on thickner top and the dregs of thickner bottom, and supernatant is from being left to ash disposal area as recirculated water; Dregs is delivered to filter by the 4th shell pump; Filter cake that obtains after the filtration and filtrating, filtrating is regulated floatation concentration from flowing to first micro-bubble flotation machine, and filter cake is delivered to grey storehouse by travelling belt after the drying machine drying; Be delivered to powder separating machine by chapelet again, obtain can be used for cement and concrete first level flour coal ash and second class powered coal ash after the sorting.
2. the preparation technology who from flyash, extracts carbon dust, powdered iron ore, first level flour coal ash and second class powered coal ash according to claim 1; It is characterized in that in first micro-bubble flotation machine and second micro-bubble flotation machine, being provided with multilayer bubbling plate, the hole dimension of the bubbling plate of first micro-bubble flotation machine is greater than the hole dimension of the bubbling plate of 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 |
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| 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 |
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| CN102674720A true CN102674720A (en) | 2012-09-19 |
| CN102674720B 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699013A (en) * | 2012-05-09 | 2012-10-03 | 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 (4)
| 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 |
| WO2007098536A1 (en) * | 2006-03-01 | 2007-09-07 | Cementech Pty Ltd | Matrix for masonry elements and method of manufacture thereof |
| 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 |
-
2012
- 2012-06-06 CN CN201210183445.9A patent/CN102674720B/en not_active Expired - Fee Related
Patent Citations (4)
| 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 |
| WO2007098536A1 (en) * | 2006-03-01 | 2007-09-07 | Cementech Pty Ltd | Matrix for masonry elements and method of manufacture thereof |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699013A (en) * | 2012-05-09 | 2012-10-03 | 山东莱芜煤矿机械有限公司 | Pulverized fuel ash comprehensive treatment technique |
| 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 |
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| CN102674720B (en) | 2014-02-19 |
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