CN104291739B - A kind of method utilizing copper titanium industry waste residue to prepare building block - Google Patents
A kind of method utilizing copper titanium industry waste residue to prepare building block Download PDFInfo
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- CN104291739B CN104291739B CN201310295782.1A CN201310295782A CN104291739B CN 104291739 B CN104291739 B CN 104291739B CN 201310295782 A CN201310295782 A CN 201310295782A CN 104291739 B CN104291739 B CN 104291739B
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- building block
- waste residue
- industry waste
- titanium industry
- powder
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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
Abstract
The invention discloses a kind of method utilizing the copper titanium industry waste residue that calcium sulfate is main component to prepare building block, this building block preparation process is: copper titanium industry waste residue powder is broken into powder, and is dried at 140 200 DEG C and carries out dehydrate；By dried copper titanium industry waste residue powder 40～95% and 5～40% gellant, 0～40% lightweight aggregate, 0～15% fiber, 0～5% water reducer, 0～5% retarder, 0～5% coagulant and water mix and blend by a certain percentage；The slurry stirred is poured in mould, vibrating forming；After slurry hardened forming, demoulding maintenance obtains building block.Prepare this building block and provide a kind of new copper titanium industry waste residue utilization approach, solve copper titanium industry waste residue to stack because of its environmental problem, the building block simultaneously prepared has the advantage that intensity is high, density is little, and performance meets country's building material industry standard, the natural gypsum building block of alternative tradition.
Description
Technical field
The present invention relates to construction material preparation field, particularly relate to a kind of method utilizing Industrial Solid Waste to prepare New Building Materials.
Background technology
Copper titanium industry waste residue is the Industrial Solid Waste with calcium sulfate as main component produced in Copper making or titanium dioxide preparation process, bag
Include in copper smelting and slag, the red waste gypsum of titanium powder industry etc..
Copper smelting is in the alkaline matters such as the spent acid produced during Copper making and Calx with slag and reacts waste residue, the master produced
Wanting composition is calcium sulfate.The red waste gypsum of titanium industry, also known as titanium gypsum, is during Titanium White Production By Sulfuric Acid Process, adds Calx
A kind of waste residue with calcium sulphate dihydrate as main component produced when (or carbide slag) is to neutralize substantial amounts of acid waste water.Often produce
1 ton of titanium dioxide, will produce 5～6 tons of red waste gypsums, and China the most about produces 8,000,000 tons of red waste gypsums, but wherein most
The most it is not applied, can only store up.The generation of these solid wastes can take a large amount of soil, and pollutes local environment.
On the other hand, along with building lightweight and the requirement of energy-conserving and environment-protective, the materials for wall of light thermal-insulation increasingly comes into one's own,
Building materials of gypsum is low with its energy consumption, hardening fast, light weight, thermal and insulating performance are good, obtained the features such as human body is affine extensively
Application.And the natural gypsum is limited and relatively costly, so needing more and more to utilize chemical gypsum to produce gypsum construction block.
Copper titanium industry waste residue is due to impure more, compared to other chemical gypsums, with slag and the recycling of titanium gypsum in copper smelting
Quantity and scale the least.Patent CN101113083 discloses a kind of method of modifying pre-processing titanium gypsum, can be used
Adjustable solidification agent in cement.Patent CN101492274 discloses a kind of titanium gypsum dry mixed mortar.But red waste gypsum in these patents
Utilization rate all ratios are relatively low, are difficult to arrive the red waste gypsum of a large amount of consumption, and by the purpose of its recycling.
Summary of the invention
The invention provides that a kind of low cost, technique is simple, the method utilizing copper titanium industry waste residue to prepare building block of excellent performance,
Its preparation method comprises the steps:
(1) copper titanium industry waste residue powder is broken into powder, and at 140～200 DEG C, carries out dehydrate；
(2) by dried mass fraction be 40～95% copper titanium industry waste residue powder with 5～40% gellant, 0～40% lightweight aggregate,
0～15% fiber, 0～5% water reducer, 0～5% retarder, 0～5% coagulant and water mix and blend by a certain percentage prepare slurry；
(3) slurry stirred is poured in mould, vibrating forming；
(4) after slurry hardened forming, demoulding maintenance obtains building block.
Copper titanium industry waste residue described in step (1) includes in copper smelting and one or more in slag, the red waste gypsum of titanium industry.
Lightweight aggregate described in step (2) includes one or more in blast-furnace cinder, light ceramic, floating bead and expanded perlite.
Gellant described in step (2) includes one or more in cement, Calx, red mud and waterglass.
Fiber described in step (2) includes the one in paper fiber, Plant fiber, mineral fibres, glass fibre and chemical fibre
Or it is multiple.
Water reducer described in step (2) includes in lignosulfonates, naphthalene sulfonate, melamine resin and polycarboxylate
One or more.
Retarder described in step (2) includes one or both in citric acid, sodium polyphosphate.
Coagulant described in step (2) includes one or both in potassium sulfate, sodium sulfate.
Quality is solid mixture quality the 50～100% of step (2) described amount of water.
Maintenance process described in step (4) is to be dried under the conditions of 50～100 DEG C or dry under dry room temperature condition.
Building block prepared by the method for preparation building block of the present invention has that preparation technology is easy, energy consumption is low, becomes
This is cheap, density is little, the feature of fireproof heat insulating, and its performance meets national standard, has good development prospect.Originally build
Build copper titanium industry waste residue addition in building block big, the solid waste such as copper titanium industry waste residue can be consumed in a large number, reduce its pollution to environment,
Natural gypsum resource can be saved simultaneously, accomplish the comprehensive utilization of solid waste resource.
Detailed description of the invention:
Embodiment 1
Red waste gypsum is ground into powder, and is dried at 170 DEG C, by the dried red barren rock that mass fraction is 70%
Cream powder and 10% light ceramic, 15% cement, 2.5% paper fiber, 2% lignosulfonates, 0.5% citric acid and water mix and blend
Uniformly, the addition of water is the 70% of solid mixture quality, pours in mould by the slurry stirred, vibrating forming.Treat
The demoulding after slurry hardened forming, dries under the conditions of dry room temperature, obtains building block.Compression strength of building block reaches 5MPa,
Density 835kg/m3。
Embodiment 2
Red waste gypsum is ground into powder, and is dried at 190 DEG C, by the dried red barren rock that mass fraction is 75%
Cream powder and 5% blast furnace slag, 10% Calx, 8% Plant fiber, 1% naphthalene sulfonate, 1% naphthalene sulfonate and water mixing and stirring,
The addition of water is the 90% of solid mixture quality.The slurry stirred is poured in mould, vibrating forming.Treat that slurry is hard
The demoulding after chemical conversion type, is dried at 70 DEG C, obtains building block.Compression strength of building block reaches 4.3MPa, density 913kg/m3。
Embodiment 3
Red waste gypsum is ground into powder, and is dried at 160 DEG C, by the dried red barren rock that mass fraction is 50%
Cream powder and 18% floating bead, 20% waterglass, 10% paper fiber, 1% melamine-formaldehyde resin, 1% sodium sulfate and water mix and blend are equal
Even, the addition of water is the 90% of solid mixture quality.The slurry stirred is poured in mould, vibrating forming.Wait to starch
The demoulding after body hardened forming, dries under the conditions of dry room temperature, obtains building block.Compression strength of building block reaches 4.6MPa, close
Degree 814kg/m3。
Embodiment 4
Copper smelting will be broken into powder with slag, and be dried at 170 DEG C, be in the dried copper smelting of 80% by mass fraction
With ground-slag and 8% expanded perlite, 10% cement, 1% melamine-formaldehyde resin, 1% sodium sulfate and water mixing and stirring, water
Addition is solid mixture quality 80%.The slurry stirred is poured in mould, vibrating forming.Treat that slurry hardens
The demoulding after molding, dries under the conditions of dry room temperature, obtains building block.Compression strength of building block reaches 4.4MPa, density 907
kg/m3。
Embodiment 5
In copper smelting and slag and the red waste gypsum of titanium industry be broken into powder, and will be dried at 170 DEG C, by copper smelting and ground-slag and titanium
Industry or Gypsum Fibrosum powder are mixed into copper titanium industry waste residue powder in the ratio of 3: 1, by the mixed copper titanium industry waste residue powder that mass fraction is 70%
With 10% expanded perlite, 8% Calx, 5% red mud, 5% polypropylene fibre, 1% melamine-formaldehyde resin, 1% potassium sulfate and
Water mixing and stirring, the addition of water is the 80% of solid mixture quality.The slurry stirred is poured in mould, shake
Dynamic molding.The demoulding after slurry hardened forming, is dried at 80 DEG C, obtains building block.Compression strength of building block reaches 4.1MPa,
Density 945kg/m3。
Claims (2)
1. one kind with in copper smelting and slag and the titanium gypsum method of preparing building block for primary raw material, it is characterised in that comprise the steps:
(1) copper smelting will be ground into powder with slag and titanium gypsum, and at 170 DEG C, carry out dehydrate；
(2) by dried copper smelting is mixed into copper titanium industry waste residue powder with ground-slag and titanium gypsum powder in the ratio of 3: 1, by mass fraction it is
The mixed copper titanium industry waste residue powder of 70% and 10% expanded perlite, 8% Calx, 5% red mud, 5% polypropylene fibre, 1% gather
Cyanamide formaldehyde resin, 1% potassium sulfate and water mixing and stirring, the addition of water is the 80% of solid mixture quality.
(3) pouring in mould by the slurry stirred, vibrating forming, after slurry hardened forming, demoulding maintenance obtains building block.
The method of preparation building block the most according to claim 1, it is characterised in that described maintenance process is under the conditions of 80 DEG C
It is dried.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310295782.1A CN104291739B (en) | 2013-07-16 | 2013-07-16 | A kind of method utilizing copper titanium industry waste residue to prepare building block |
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| CN201310295782.1A CN104291739B (en) | 2013-07-16 | 2013-07-16 | A kind of method utilizing copper titanium industry waste residue to prepare building block |
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| CN104291739A CN104291739A (en) | 2015-01-21 |
| CN104291739B true CN104291739B (en) | 2016-08-03 |
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| CN105000903A (en) * | 2015-07-14 | 2015-10-28 | 常州市武进翔宇电子元器件有限公司 | Flame retardant and flexible aerated block and preparation method therefor |
| CN107556043B (en) * | 2017-09-04 | 2020-09-18 | 沈阳市文林水土工程设计有限公司 | Building block with strong heat insulation effect and preparation method thereof |
| CN110776333A (en) * | 2019-12-09 | 2020-02-11 | 江苏宏盛环保科技有限公司 | Composite autoclaved aerated concrete block and preparation method thereof |
| CN112010606A (en) * | 2020-09-07 | 2020-12-01 | 攀钢集团工程技术有限公司 | Titanium extraction tailing dry-mixed mortar |
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| JP2000344563A (en) * | 1999-06-02 | 2000-12-12 | Kajima Corp | Lightweight aggregate concrete excellent in pump forced feedability |
| CN101920520B (en) * | 2010-08-18 | 2012-04-18 | 攀钢集团钢铁钒钛股份有限公司 | Method for preparing gypsum building block with titanium gypsum |
| CN102701698B (en) * | 2012-06-20 | 2014-02-12 | 安徽森科新材料有限公司 | Moistureproof titanium gypsum hollow building block and preparation method thereof |
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