CN110937830A - Novel mineral powder produced by nickel slag and preparation method thereof - Google Patents

Novel mineral powder produced by nickel slag and preparation method thereof Download PDF

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Publication number
CN110937830A
CN110937830A CN201911290622.1A CN201911290622A CN110937830A CN 110937830 A CN110937830 A CN 110937830A CN 201911290622 A CN201911290622 A CN 201911290622A CN 110937830 A CN110937830 A CN 110937830A
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CN
China
Prior art keywords
slag
mineral powder
nickel slag
novel
nickel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911290622.1A
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Chinese (zh)
Inventor
谭纪林
华玉海
华建军
曹敏
牛成
谭伟
张会明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaian Cement Factory Co Ltd
Original Assignee
Huaian Cement Factory Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huaian Cement Factory Co Ltd filed Critical Huaian Cement Factory Co Ltd
Priority to CN201911290622.1A priority Critical patent/CN110937830A/en
Publication of CN110937830A publication Critical patent/CN110937830A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B5/00Treatment of metallurgical slag; Artificial stone from molten metallurgical slag
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04Waste materials; Refuse
    • C04B18/14Waste materials; Refuse from metallurgical processes
    • C04B18/141Slags
    • C04B18/142Steelmaking slags, converter slags
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04Waste materials; Refuse
    • C04B18/14Waste materials; Refuse from metallurgical processes
    • C04B18/141Slags
    • C04B18/144Slags from the production of specific metals other than iron or of specific alloys, e.g. ferrochrome slags
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02Treatment
    • C04B20/04Heat treatment
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/14Cements containing slag
    • C04B7/147Metallurgical slag
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/10Production of cement, e.g. improving or optimising the production methods; Cement grinding
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention relates to a method for producing novel mineral powder by using nickel slag and a preparation method thereof, which is characterized in that the novel mineral powder is prepared by the following raw materials by weight percentage, 60-80% of nickel slag and 20-40% of slag are mixed and stirred uniformly by a machine to carry out hydration reaction, then the mixture enters a drying kiln to be dried at the temperature of 100 ℃ and 150 ℃ to form a mineral powder product with a new mineral composition and a new activated vitreous crystal lattice, and finally the dried mineral powder product is ground into the novel mineral powder product. The novel mineral powder product can improve the yield by 40 percent, save electricity by 40 percent, save energy and resources, save the cost of farmland stacking, landfill and the like, save the production cost, provide a new technical scheme for nickel slag treatment, greatly utilize the nickel slag, reduce the pollution and damage to the environment and realize a new technology and a new process method for the resource utilization of solid wastes.

Description

Novel mineral powder produced by nickel slag and preparation method thereof
Technical Field
The invention belongs to the field of new technical materials, and particularly relates to a novel mineral powder produced by nickel slag and a preparation method thereof.
Background
The nickel slag has complex components, contains a large amount of water, has the conditions of high nickel content, high bulk hardness and the like, and can cause new pollution to the environment when a large amount of unprocessed nickel slag is randomly stacked or buried. Therefore, it has become one of the subjects of attention in the environmental protection field to perform harmless treatment of a large amount of nickel slag with complicated components and to avoid secondary pollution by resource utilization.
In order to treat the nickel slag and other industrial waste residues, a lot of people at home and abroad want a lot of methods, in recent years, the existing method for treating the nickel slag and other waste residues in China mainly stacks and buries the nickel slag after magnetically separating nickel components, so that a large number of farmlands are occupied, the treatment cost is high, the existing method for treating the nickel slag and other waste residues is used for building material products by less than 2 percent, the existing method for producing novel mineral powder by using the mineral powder is not mature technology at home and abroad, the mineral powder industry is high in energy consumption and resource consumption, the existing mineral powder resource is greatly in short supply, the prices of the mineral slag and the mineral slag powder are continuously increased, a plurality of mineral slag powder enterprises producing the mineral slag are faced with no goods source or transformation, and the production cost is increased for cement enterprises and concrete enterprises to utilize the mineral slag.
In order to reduce the increasing shortage of energy and resources, the recycling, reduction and harmlessness of the nickel slag are important, the useful components in the nickel slag are fully utilized, and the nickel slag recycling treatment for improving the additional value of the nickel slag has obvious economic and social environmental benefits.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to solve the problem that nickel slag and other industrial waste residues cannot effectively treat environment pollution, and provides a novel mineral powder produced by using nickel slag and a preparation method thereof.
The technical scheme is as follows: the novel mineral powder produced by using the nickel slag is prepared from the following raw materials in percentage by weight, 60-80% of nickel slag and 20-40% of slag;
the nickel slag is waste slag discharged by nickel product production enterprises, is called nickel slag, contains nickel components and the like, and has the water content of about 20 percent;
the slag is waste slag discharged by steel product producing enterprises, contains silicate and aluminate melts, and is granular slag formed by quenching air and water.
The invention also provides a novel mineral powder preparation method, which comprises the following steps:
firstly, weighing nickel slag and slag according to weight percentage, then mechanically mixing and stirring uniformly to carry out hydration reaction, then entering a drying kiln to be dried at 150 ℃ for 100 ℃, forming a new hydrated mineral composition and a new mineral powder product of activated glass body, and finally grinding the dried mixed slag into a novel mineral powder product.
The purpose of mixing and stirring is to fully perform hydration reaction between the materials, and the reacted materials are put into a kiln and dried to form a new mineral composition and a new activated glass body crystal lattice between the materials; the grinding is to obtain the product with excellent quality performance.
Has the advantages that: the novel nickel slag mineral powder disclosed by the invention is efficient resource utilization in the mineral powder industry, is beneficial to reducing carbon emission in the cement industry and saving the consumption of coal resources, utilizes the heat energy of kiln drying of the slag of a mineral powder enterprise, and also utilizes the effective minerals in the nickel slag, thereby reducing the coal consumption in slag drying, saving the power consumption of the mineral powder enterprise, saving energy and reducing emission, and realizing efficient utilization of nickel slag waste; the novel nickel slag mineral powder meets the quality technical index requirements of novel mineral powder products and the solidification capability of harmful ions in the nickel slag.
The novel nickel slag mineral powder has high activated vitreous body performance and new mineral composition crystal lattices, can replace 60-80% of slag, saves electricity by 40%, improves the yield by 40%, equivalently replaces cement clinker or cement, reduces the using amount of the cement clinker, reduces the electricity consumption of slag powder produced by the slag, reduces the consumption of resource energy in the cement production process, and lightens the sludge of the cement industry production process to the environment.
Detailed Description
In order to enhance the understanding of the present invention, the present invention will be further described with reference to the following examples, which are provided for illustration only and are not intended to limit the scope of the present invention.
Example 1
Firstly, 60 percent of nickel slag and 40 percent of slag are weighed according to the weight percentage, are uniformly mixed and stirred by a machine for hydration reaction, then enter a drying kiln and are dried at 100 ℃ to form a mineral powder product with a new hydrated mineral composition and a new activated vitreous body lattice, and finally the dried mineral powder product is ground into a novel mineral powder product, wherein the product quality activation performance technical index meets the requirement of S105 level regulation specified in the national standard GB/T18046-2008 through detection.
Example 2
Firstly, weighing 70% of nickel slag and 30% of slag according to weight percentage, then, mechanically mixing and stirring uniformly to perform hydration reaction, then, drying in a drying kiln at 130 ℃ to form a mineral powder product with a new hydrated mineral composition and a new activated vitreous body lattice, and finally, grinding the dried mineral powder product into a novel mineral powder product, wherein the product quality activation performance technical indexes meet the requirements specified in the national standard GB/T18046-2008 and the S105 level.
Example 3
Firstly, weighing 80% of nickel slag and 40% of slag according to weight percentage, then mechanically mixing and stirring uniformly for hydration reaction, then drying in a drying kiln at 150 ℃ to form a mineral powder product with a new hydrated mineral composition and a new activated vitreous body lattice, and finally grinding the dried mineral powder product into a novel mineral powder product, wherein the product quality activation performance technical index meets the requirements of S105 level regulation specified in national standard GB/T18046-2008.
Example 4
The novel mineral powder product is used as novel mineral powder technical performance data for comparison and detection according to national GB/T18046-2008, the data are shown in a table I, the novel mineral powder product replaces part of cement to be used for physical performance comparison and detection and is doped into concrete to be compared with performance tests, and the data are shown in a table II and a table III.
The technical performance comparison detection result of a novel mineral powder product and GB/T18046-2008 national standard slag powder
Physical property comparison detection result of novel mineral powder product and substitute part of cement
Comparative detection result of performance of novel ore powder product doped into concrete
From the test results analysis of the quality effect: the data in the table I, the table II and the table III show that the performance of the product can be compared favorably with that of the slag powder, and the product is used for replacing partial portland cement, common cement, coal ash cement, composite cement, slag cement and road cement to enable the performance of the product to exceed the water quality of the product which is not doped with the product, so that the product is doped into various types of cement to play a role in making up for deficiencies of the cement; but also can change the defects of the above substances, fully play the role of combining the effective components with the calcium hydrate ions and the silicate ions decomposed from the cement clinker to form hydrated C-S-H, accelerate the great improvement of the early and later stage strength of the cement hydration, inhibit the crystal lattice transformation formation of the hydroxyl calcium stone, inhibit the reduction of the cement strength, and make the bonding performance of the hydrated C-S-H crystal structure better and better, so when the product of the invention is added into various cements and concretes, the performances of the cement strength and the like are superior to the performances of the product without being mixed with the product of the invention for a long time.
The product of the invention is a concrete admixture, the maximum mixing amount in concrete can reach 50%, the quality of the concrete product can be improved, the product has good wear resistance and frost resistance, the dry shrinkage rate is reduced, the fluidity and slump of the concrete are improved, the hydration heat is reduced, the product is widely applied to construction engineering construction of industry, civil use and the like, the cohesive force is enhanced, the delamination and segregation are not easy, and the bleeding property of the concrete and the cracking phenomenon of the concrete are reduced.
And (3) microstructure analysis: the structural function of the product of the invention is that the nickel slag contains a large amount of complex chemical components such as nickel element, etc., which are combined with effective silicon and calcium in the slag, and the mineral powder product with new mineral composition and new activated vitreous crystal lattice is synthesized at low temperature through mixing and stirring, so that the crystal in the novel mineral powder is changed, the concentration of dissolved ions in the vitreous body of the novel mineral powder structure is increased to enter the gap of the novel mineral powder network structure, the mineral powder reacts with active cations, the decomposition and dissolution of the mineral powder are promoted, the gelling property of the nickel slag and the slag is excited, the internal structure of the nickel slag and the slag become loose vitreous crystal lattice through thermal reaction, the mineral powder product with high activity is produced, and a huge specific surface area is formed, the strength of the novel mineral powder product is improved, the hydration speed, the physical property and the like of the product are changed, and the physical and chemical changes among each other are promoted, the product of the invention improves and increases the strength of the set cement and the concrete.
The product of the invention uses 100% of industrial waste residue, saves 100% of resources and energy, reduces the pollution to the environment, improves the utilization rate of nickel slag, reduces the expenses of farmland stacking, landfill and the like, and reduces the production cost. The product has wide market prospect.

Claims (2)

1. A method for producing novel mineral powder by using nickel slag and a preparation method thereof are characterized in that the novel mineral powder is prepared by the following raw materials by weight percent, 60-80% of nickel slag and 20-40% of slag;
the nickel slag is waste slag discharged by nickel product production enterprises and is called nickel slag;
the slag is granular particles formed by melting silicate and aluminate discharged in the steel production process of steel enterprises and quenching the molten silicate and aluminate by air and water.
The novel mineral powder preparation method comprises the following steps: firstly, weighing nickel slag and slag according to weight percentage, then mechanically mixing and stirring uniformly to carry out hydration reaction, then entering a drying kiln to be dried at 150 ℃ for 100 ℃, forming a mineral powder product with a new hydrated mineral composition and a new activated vitreous body lattice, and finally grinding the dried mineral powder product into a novel mineral powder product.
2. The method for producing the novel mineral powder by using the nickel slag according to claim 1, wherein the technical quality index of the novel mineral powder produced by using the nickel slag meets the requirements specified in the national GB/T18046-2008 standard.
The method as claimed in claim 2, wherein the novel ore powder product produced from the nickel slag is used as a substitute for Portland cement, fly ash cement, composite cement, slag cement, lime ash cement, road cement, etc. in an amount of 36-50%, and is used as a substitute for concrete in an amount of 47%, thereby saving natural cement clinker in an amount of 50%, saving energy by 40%, increasing yield by 40%, reducing production cost, improving product quality, and reducing treatment costs such as environmental pollution and destruction caused by farmland stacking and landfill of the nickel slag.
CN201911290622.1A 2019-12-16 2019-12-16 Novel mineral powder produced by nickel slag and preparation method thereof Pending CN110937830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911290622.1A CN110937830A (en) 2019-12-16 2019-12-16 Novel mineral powder produced by nickel slag and preparation method thereof

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Application Number Priority Date Filing Date Title
CN201911290622.1A CN110937830A (en) 2019-12-16 2019-12-16 Novel mineral powder produced by nickel slag and preparation method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111548031A (en) * 2020-05-18 2020-08-18 江苏启坤循环经济产业技术开发有限公司 Novel mineral powder prepared from industrial waste residue neutralization slag and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1258653A (en) * 2000-01-10 2000-07-05 王绍华 Composite portland cement
CN101172790A (en) * 2007-10-26 2008-05-07 尹小林 Novel technique for producing concrete by using hygroscopic state sewage sludge waste slag B grade mixture material
WO2014180926A1 (en) * 2013-05-07 2014-11-13 Societe Le Nickel-Sln Hydraulic binder composition comprising slag and ash
CN105016643A (en) * 2015-07-07 2015-11-04 淮安市楚城水泥有限公司 Novel mineral powder produced by using sludge and preparation method of novel mineral powder
CN105819727A (en) * 2016-03-15 2016-08-03 东南大学 Composite mineral admixture for concrete

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1258653A (en) * 2000-01-10 2000-07-05 王绍华 Composite portland cement
CN101172790A (en) * 2007-10-26 2008-05-07 尹小林 Novel technique for producing concrete by using hygroscopic state sewage sludge waste slag B grade mixture material
WO2014180926A1 (en) * 2013-05-07 2014-11-13 Societe Le Nickel-Sln Hydraulic binder composition comprising slag and ash
CN105016643A (en) * 2015-07-07 2015-11-04 淮安市楚城水泥有限公司 Novel mineral powder produced by using sludge and preparation method of novel mineral powder
CN105819727A (en) * 2016-03-15 2016-08-03 东南大学 Composite mineral admixture for concrete

Non-Patent Citations (1)

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Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111548031A (en) * 2020-05-18 2020-08-18 江苏启坤循环经济产业技术开发有限公司 Novel mineral powder prepared from industrial waste residue neutralization slag and preparation method thereof

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