CN1072161A - Increase calcium (magnesium) slag ash building product production method - Google Patents
Increase calcium (magnesium) slag ash building product production method Download PDFInfo
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- CN1072161A CN1072161A CN92105513A CN92105513A CN1072161A CN 1072161 A CN1072161 A CN 1072161A CN 92105513 A CN92105513 A CN 92105513A CN 92105513 A CN92105513 A CN 92105513A CN 1072161 A CN1072161 A CN 1072161A
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- flying dust
- slag
- magnesium
- calcium
- building
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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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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Increase calcium (magnesium) slag ash building product producer building materials field owned by France, be by the broken former slag of the grain composition of aggregate requirement of product, join again by an amount of active hydraulic cementing materials and mix with flying dust, and the auxilliary sizing material that adds plaster stone and admixture or retardant composition, through adding water, stirring, moulding, the method for maintenance then.Broken after its former slag drying, can be steam-cured to the goods of using the high-early-strength active material.This scheme can reduce the energy consumption that former waste residue is handled, and improves the holllow building block quality, produces multiple product, adapts to different production units, makes the whole slag ashes of vertical cyclone furnace change into building resource, realizes the grey power plant of no slag.
Description
The invention belongs to building materials field, the slag ash that is suitable for utilizing power plant's vertical cyclone furnace to discharge is made building product.The acquisition of slag ash is the chromium slag that mixes an amount of Wingdale or chromium salt factory in coal, sprays in the whirlwind tube grain slag and the flying dust of being discharged through the high-temp combustion fusion by levigate mixing.The former is for increasing calcium slag, calcium-enforced slag; The latter is for increasing calcium magnesium slag, increasing calcium magnesium ash.
The application of power plant's vertical cyclone furnace enlarges year by year, it is increased calcium (magnesium) grain slag be used for the raw material that building materials are produced, and can solve the utilization of plant residue, and new building resource is provided.But the existing technology of utilizing mainly is the problem of utilizing that solves slag, often fails to consider simultaneously, utilizes in the lump for the flying dust that accounts for quantity discharged about 30%.
Purpose of the present invention is to propose the scheme that the slag ash fully utilizes the production method of making building product simultaneously.
The object of the present invention is achieved like this, still continues to use to increase the basic skills of calcium slag system small-sized hollow building block, and promptly by the grain composition of aggregate requirement of product, broken former slag is equipped with an amount of sizing material and water again, the method for maintenance after stirring moulding.Wherein sizing material be with active hydraulic cementing materials with increase calcium (magnesium) flying dust mixed preparing and form, also can require add again an amount of plaster stone and admixture or retardant according to the difference of goods; The proportioning of used active material and flying dust is excited in preparation and produces active requirement decision by improving flying dust; The loss on ignition of flying dust itself should be less than 10%.Like this, active material can improve flying dust and be excited in preparation and produce active ability, and the qualification of loss on ignition is to guarantee that flying dust has the basic condition of lateral reactivity preferably.By as above method preparation, flying dust just can be used as a component of sizing material, is utilized jointly with grain slag that vertical cyclone furnace is discharged, and the object of the invention is achieved.
Aforesaid method of the present invention is selected the active material of high-early-strength for use, excites the activity of flying dust, and uses non-steam curing conservation technology to finish production of articles.Utilize this class active material not only can excite the lateral reactivity of flying dust, and simplified the processing condition of maintenance.Goods that the suitable for producing varying strength requires, and capable of reducing energy consumption in the work-ing life of having improved the shaper bunk, have reduced the total cost of product.
The material of sizing material apolegamy in the aforesaid method of the present invention, and the characteristics of goods maintenance and requirement of strength are referring to sizing material proportioning table.
Former slag in the aforesaid method of the present invention is broken to be needed earlier former slag oven dry, makes its water ratio drop to 2% and changes broken process when following again over to.Most of moisture in the former slag removed in oven dry, can reduce the resistance of broken former slag, provides convenience for accurately control amount of water after mixing of materials simultaneously, helps reducing production energy consumption and stable article quality.
It is higher that the inventive method utilizes vertical cyclone furnace to increase the lateral reactivity of calcium (magnesium) flying dust, the gained lime-ash than with the glue aggregate of producing holllow building block than about the same, basically can accomplish the favourable condition of handling together, solve cindery whole utilization dexterously, make its resource utilization; Exempted former technology for increasing the utilization of slag, the course of processing of sizing carefully being served as part sizing material component; Not only reduced reduction resistant force, also favourable improving the quality of products after the former slag oven dry; For adding α-type or β-type semi-hydrated gypsum powder, the scheme of non-steam curing conservation, can satisfy general occasion to the block strength requirement, reduce corresponding cost and maintenance energy consumption, after reality increases calcium (magnesium) blending and burning technology for vertical cyclone furnace adopts, indispensable twin technology makes this power plant can accomplish no lime-ash production, makes the whole cinder resourceizations of coal after burning.This processing method can be fit to the holllow building block of various types and produce molding device.
Sizing material proportioning table
Now in conjunction with the embodiments the present invention program is described further.
Accompanying drawing provides the schema of three kinds of process programs.
Fig. 1 is steam-cured goods schema;
Steam-cured load-bearing of Fig. 2 right and wrong and non-bearing small-sized hollow building block goods schema;
The steam-cured non-bearing small-sized hollow building block of Fig. 3 right and wrong goods schema.
Embodiment is using vertical cyclone furnace power plant through mix the chromium slag that burns an amount of Wingdale or chromium salt factory in fire coal after, is main raw material making building materials holllow building blocks with the deslagging ash discharge of cyclone furnace.Earlier with the deslagging oven dry, treat that its moisture content drops to 2%(weight during making) after, enter crusher, broken by the requirement of building block particles of aggregates grating, make aggregate.Be equipped with various active hydraulic cementing materials again with flying dust that cyclone furnace is arranged, and necessary admixture retardant etc. is made sizing material.Mixing and water adding stirs blanks and moulding and conserving and obtains building block product according to quantity then.Concrete processing condition and parameter such as following table are listed.
In table, enumerate six kinds of process programs and preparation process condition to the comprehensive utilization of power plant calcium-enforced slag.When the cyclone furnace thereof flying dust when increasing calcium magnesium flying dust, still can utilize the processing parameter of each routine scheme in the table, but need requirement adding MgCl by explanation (4)
2Wherein three groups of the 1st, 2, the 3rd, 4, the 5th, 6 examples are corresponding with Fig. 1, Fig. 2, Fig. 3 three schemas respectively successively.Be about to former slag oven dry, broken as aggregate, with flying dust and active material and other auxiliary material mixing and water adding, mix stirring with aggregate in stirrer, again through the shaper moulding by proportioning, condition maintenance on request then just can be made finished product.The whole plant that each scheme all selects for use the full-automatic concrete building block to produce, its rated output be 1200 calibrated bolcks/hour.Substantially press close to because of institute's deslagging ash prepares consumption proportion with building block,, in generating, also provide multiple holllow building block and other building material made to society so can make whole slag ash resource utilizations of this power plant.
Claims (6)
1, increases calcium (magnesium) slag ash building product producer building materials field owned by France, be by the broken former slag of the grain composition of aggregate requirement of product, be equipped with an amount of sizing material again, the method of maintenance after adding water, stirring, moulding is characterized in that sizing material is with active hydraulic cementing materials and increases calcium (magnesium) flying dust mixed preparing; Or according to the different requirements of goods, it is formulated to add an amount of plaster stone and admixture or retardant again; Wherein active material with increase the proportioning of calcium (magnesium) flying dust, in preparation, be excited and produce active requirement decision by improving flying dust; The loss on ignition of flying dust itself should be less than 10%.
2, method according to claim 1 is characterized in that selecting for use the active material of high-early-strength to excite the activity of flying dust, and uses non-steam curing conservation technology to finish production of articles.
3, method according to claim 1, when it is characterized in that making gelling material with 325#, 425# silicate cement or Portland blast, its ratio that cooperates with flying dust is 1: 1.86～2.33, and can add a small amount of plaster stone; Increase calcium magnesium flying dust as one of component of sizing material if adopt, then need add a spot of MgCl in addition
2
4, the method for claim 1, when it is characterized in that making gelling material with 425# or 525# quick hardening sulphoaluminate cement, its ratio that cooperates with flying dust is 1: 1.86～2.33, and can add retardant; Increase calcium magnesium flying dust as one of component of sizing material if adopt, then need add a spot of MgCl in addition
2
5, the method for claim 1, when it is characterized in that 325#, 425# silicate cement or Portland blast and 25Mpa α one type high strength gypsum powder or 10Mpa β one type building gypsum plaster are made gelling material, its ratio that cooperates with flying dust is 1: 1.86～2.33, and adds retardant; Employing increases calcium (magnesium) flying dust as one of component of glue, then need add a spot of MgCL in addition
2
6, method as claimed in claim 1 or 2 is characterized in that former slag drying to water ratio＜2% o'clock, changes broken process over to again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92105513A CN1072161A (en) | 1992-07-07 | 1992-07-07 | Increase calcium (magnesium) slag ash building product production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92105513A CN1072161A (en) | 1992-07-07 | 1992-07-07 | Increase calcium (magnesium) slag ash building product production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1072161A true CN1072161A (en) | 1993-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92105513A Pending CN1072161A (en) | 1992-07-07 | 1992-07-07 | Increase calcium (magnesium) slag ash building product production method |
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| Country | Link |
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| CN (1) | CN1072161A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462321C (en) * | 2000-01-08 | 2009-02-18 | 山西广灵精华化工集团有限公司 | Production technique for compound and laying cement by utilizing waste dregs in magnesium smelting |
| CN103612318A (en) * | 2013-12-02 | 2014-03-05 | 连太吉 | Full-automatic composite self-insulation building block production method |
| CN106363793A (en) * | 2016-08-26 | 2017-02-01 | 安徽盛运重工机械有限责任公司 | Fly ash solidifying treatment system |
-
1992
- 1992-07-07 CN CN92105513A patent/CN1072161A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462321C (en) * | 2000-01-08 | 2009-02-18 | 山西广灵精华化工集团有限公司 | Production technique for compound and laying cement by utilizing waste dregs in magnesium smelting |
| CN103612318A (en) * | 2013-12-02 | 2014-03-05 | 连太吉 | Full-automatic composite self-insulation building block production method |
| CN106363793A (en) * | 2016-08-26 | 2017-02-01 | 安徽盛运重工机械有限责任公司 | Fly ash solidifying treatment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |