CN104291739A - Method for preparing building blocks by using copper and titanium industry waste residue - Google Patents

Method for preparing building blocks by using copper and titanium industry waste residue Download PDF

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Publication number
CN104291739A
CN104291739A CN201310295782.1A CN201310295782A CN104291739A CN 104291739 A CN104291739 A CN 104291739A CN 201310295782 A CN201310295782 A CN 201310295782A CN 104291739 A CN104291739 A CN 104291739A
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China
Prior art keywords
building block
waste residue
copper
titanium industry
industry waste
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CN201310295782.1A
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Chinese (zh)
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CN104291739B (en
Inventor
张以河
王凡
胡攀
陆荣荣
周风山
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China University of Geosciences
China University of Geosciences Beijing
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China University of Geosciences Beijing
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    • 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 preparing building blocks by using copper and titanium industry waste residue with calcium sulfate as a main component. The building block preparation method comprises the following steps: the copper and titanium industry waste residue is crushed into powder; the powder is subjected to dehydration drying, wherein drying is carried out under a temperature of 140-200 DEG C; according to the mass, 40-95% of the dried copper and titanium industry waste residue powder is mixed and stirred with 5-40% of a gelling agent, 0-40% of a lightweight aggregate, 0-15% of fiber, 0-5% of a water-reducing agent, 0-5% of a retarder, 0-5% of a coagulating agent and water according to a certain ratio; a uniform slurry obtained by stirring is poured into a mold, and is shaken and molded. When the slurry is hardened and molded, demolding and curing are carried out, so that the building blocks are obtained. With the preparation of the building blocks, a novel copper and titanium industry waste residue utilization approach is provided, and an environment problem caused by the stacking of copper and titanium industry waste residue is solved. The prepared building blocks have the advantages of high strength and low density. The performance of the building blocks satisfies national building material industry standards. The building blocks can be used for replacing traditional natural gypsum building blocks.

Description

A kind of method utilizing copper titanium industry waste residue to prepare building block
Technical field
The present invention relates to material of construction 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 that what to produce in Copper making or titanium dioxide preparation process take calcium sulfate as the Industrial Solid Waste of main component, comprises in copper smelting and slag, the red waste gypsum of titanium powder industry etc.
In copper smelting and slag be waste residue, the main component that the alkaline matter neutralization reaction such as the spent acid that produces in the process of Copper making and lime produces be calcium sulfate.The red waste gypsum of titanium industry, also known as titanium gypsum, is in the process of Titanium White Production By Sulfuric Acid Process, produce when adding lime (or carbide slag) to neutralize a large amount of acid waste water a kind of take terra alba as the waste residue of main component.Often produce 1 ton of titanium dioxide, will produce 5 ~ 6 tons of red waste gypsums, China about produces 8,000,000 tons of red waste gypsums every year, but wherein major part is not all applied, and 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 the requirement of building lightweight and energy-conserving and environment-protective, the materials for wall of light thermal-insulation more and more comes into one's own, and building materials of gypsum is low with its production energy consumption, sclerosis fast, light weight, thermal and insulating performance are good, be widely used features such as human body are affine.And the plaster of paris is limited and cost is higher, so need more and more to utilize chemical gypsum to produce gypsum construction block.
Copper titanium industry waste residue due to impure more, compared to other chemical gypsums, in copper smelting and the quantity of the recycling of slag and titanium gypsum and scale all also very little.Patent CN101113083 discloses a kind of method of modifying pre-processing titanium gypsum, can use it for the adjustable solidification agent of cement.Patent CN101492274 discloses a kind of titanium gypsum dry mixed mortar.But the utilization ratio of red waste gypsum is all lower in these patents, be difficult to arrive the red waste gypsum of a large amount of consumption, and by the object of its recycling.
Summary of the invention
The invention provides a kind of low cost, the method for building block prepared by the technique copper titanium industry waste residue that utilizes that is simple, excellent performance, its preparation method comprises the steps:
(1) copper titanium industry waste residue powder is broken into powder, and dehydrates at 140 ~ 200 DEG C;
(2) by dried massfraction be 40 ~ 95% copper titanium industry waste residue powder and 5 ~ 40% jelling agents, 0 ~ 40% light skeletal, 0 ~ 15% fiber, 0 ~ 5% water reducer, 0 ~ 5% retardant, 0 ~ 5% setting accelerator and water by a certain percentage mix and blend obtain 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) comprises in copper smelting and slag, one or more in the red waste gypsum of titanium industry.
Light skeletal described in step (2) comprise in blast-furnace slag, light ceramic, drift pearl and pearlstone one or more.
Jelling agent described in step (2) comprise in cement, lime, red mud and water glass one or more.
Fiber described in step (2) comprise in paper fiber, vegetable fibre, mineral fibre, glass fibre and man-made fiber one or more.
Water reducer described in step (2) comprise in sulfonated lignin, naphthalenesulfonate, terpolycyantoamino-formaldehyde resin and polycarboxylate one or more.
Retardant described in step (2) comprise in citric acid, sodium polyphosphate one or both.
Setting accelerator described in step (2) comprise in potassium sulfate, sodium sulfate one or both.
The quality of step (2) described amount of water is 50 ~ 100% of solids mixing amount.
Maintenance process described in step (4) is dry under 50 ~ 100 DEG C of conditions or dries under the room temperature condition of drying.
Building block prepared by the method preparing building block of the present invention has that preparation technology is easy, production energy consumption is low, with low cost, density is little, the feature of fireproof heat insulating, and its performance meets national standard, has good development prospect.In this building block, copper titanium industry waste residue addition is large, can consume the solid waste such as copper titanium industry waste residue in a large number, reduces its pollution to environment, can save plaster of paris resource simultaneously, accomplish the comprehensive utilization of solid waste resource.
Embodiment:
Embodiment 1
Red waste gypsum is ground into powder, and drying is carried out at 170 DEG C, be dried red waste gypsum powder and 10% light ceramic, 15% cement, 2.5% paper fiber, 2% sulfonated lignin, 0.5% citric acid and the water mixing and stirring of 70% by massfraction, the addition of water is 70% of solids mixing amount, the slurry stirred is poured in mould, vibrating forming.The demoulding after slurry hardened forming, dries, obtains building block under dry room temperature condition.Compression strength of building block reaches 5MPa, density 835kg/m 3.
Embodiment 2
Red waste gypsum is ground into powder, and drying is carried out at 190 DEG C, be dried red waste gypsum powder and 5% blast furnace slag, 10% lime, 8% vegetable fibre, 1% naphthalenesulfonate, 1% naphthalenesulfonate and the water mixing and stirring of 75% by massfraction, the addition of water is 90% of solids mixing amount.The slurry stirred is poured in mould, vibrating forming.The demoulding after slurry hardened forming, dry at 70 DEG C, obtain building block.Compression strength of building block reaches 4.3MPa, density 913kg/m 3.
Embodiment 3
Red waste gypsum is ground into powder, and drying is carried out at 160 DEG C, be dried red waste gypsum powder and 18% drift pearl, 20% water glass, 10% paper fiber, 1% melamine-formaldehyde resin, 1% sodium sulfate and the water mixing and stirring of 50% by massfraction, the addition of water is 90% of solids mixing amount.The slurry stirred is poured in mould, vibrating forming.The demoulding after slurry hardened forming, dries, obtains building block under dry room temperature condition.Compression strength of building block reaches 4.6MPa, density 814kg/m 3.
Embodiment 4
Powder is broken into slag by copper smelting, and drying is carried out at 170 DEG C, be in the dried copper smelting of 80% by massfraction and ground-slag and 8% pearlstone, 10% cement, 1% melamine-formaldehyde resin, 1% sodium sulfate and water mixing and stirring, the addition of water is 80% of solids mixing amount.The slurry stirred is poured in mould, vibrating forming.The demoulding after slurry hardened forming, dries, obtains building block under dry room temperature condition.Compression strength of building block reaches 4.4MPa, density 907kg/m 3.
Embodiment 5
Powder is broken into slag and the red waste gypsum of titanium industry by copper smelting, and drying is carried out at 170 DEG C, by in copper smelting and ground-slag and titanium industry or terra alba in 3: 1 ratio be mixed into copper titanium industry waste residue powder, be mixed copper titanium industry waste residue powder and 10% pearlstone, 8% lime, 5% red mud, 5% polypropylene fibre, 1% melamine-formaldehyde resin, 1% potassium sulfate and the water mixing and stirring of 70% by massfraction, the addition of water is 80% of solids mixing amount.The slurry stirred is poured in mould, vibrating forming.The demoulding after slurry hardened forming, dry at 80 DEG C, obtain building block.Compression strength of building block reaches 4.1MPa, density 945kg/m 3.

Claims (10)

1. with copper titanium industry waste residue for main raw material prepares the method for building block, it is characterized in that comprising the steps:
(1) copper titanium industry waste residue powder is broken into powder, and dehydrates at 140 ~ 200 DEG C;
(2) by dried massfraction be 40 ~ 95% copper titanium industry waste residue powder and 5 ~ 40% jelling agents, 0 ~ 40% light skeletal, 0 ~ 15% fiber, 0 ~ 5% water reducer, 0 ~ 5% retardant, 0 ~ 5% setting accelerator and water by a certain percentage mix and blend obtain slurry;
(3) slurry stirred is poured in mould, vibrating forming;
(4) after slurry hardened forming, demoulding maintenance obtains building block.
2. copper titanium industry waste residue according to claim 1 comprises one or both in the red waste gypsum of titanium powder industry, copper smelting and in slag.
3. the method preparing building block according to claim 1, it is characterized in that described light skeletal comprises in blast-furnace slag, light ceramic, drift pearl and pearlstone one or more.
4. the method preparing building block according to claim 1, it is characterized in that described jelling agent comprises in cement, lime, red mud and water glass one or more.
5. the method preparing building block according to claim 1, it is characterized in that described fiber comprises in paper fiber, vegetable fibre, mineral fibre, glass fibre and man-made fiber one or more.
6. the method preparing building block according to claim 1, it is characterized in that described water reducer comprises in sulfonated lignin, naphthalenesulfonate, terpolycyantoamino-formaldehyde resin and polycarboxylate one or more.
7. the method preparing building block according to claim 1, it is characterized in that described retardant comprises in citric acid, sodium polyphosphate one or both.
8. the method preparing building block according to claim 1, it is characterized in that described setting accelerator comprises in potassium sulfate, sodium sulfate one or both.
9. the method preparing building block according to claim 1, is characterized in that the quality of amount of water is 50 ~ 100% of solids mixing amount.
10. the method preparing building block according to claim 1, is characterized in that described maintenance process is (dry under drying or the room temperature condition in drying under DEG C condition 50 ~ 100.
CN201310295782.1A 2013-07-16 2013-07-16 A kind of method utilizing copper titanium industry waste residue to prepare building block Active CN104291739B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN107556043A (en) * 2017-09-04 2018-01-09 谭永超 A kind of building block with strong insulative effectiveness 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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000344563A (en) * 1999-06-02 2000-12-12 Kajima Corp Lightweight aggregate concrete excellent in pump forced feedability
CN101920520A (en) * 2010-08-18 2010-12-22 攀钢集团钢铁钒钛股份有限公司 Method for preparing gypsum building block with titanium gypsum
CN102701698A (en) * 2012-06-20 2012-10-03 安徽森科新材料有限公司 Moistureproof titanium gypsum hollow building block and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000344563A (en) * 1999-06-02 2000-12-12 Kajima Corp Lightweight aggregate concrete excellent in pump forced feedability
CN101920520A (en) * 2010-08-18 2010-12-22 攀钢集团钢铁钒钛股份有限公司 Method for preparing gypsum building block with titanium gypsum
CN102701698A (en) * 2012-06-20 2012-10-03 安徽森科新材料有限公司 Moistureproof titanium gypsum hollow building block and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN107556043A (en) * 2017-09-04 2018-01-09 谭永超 A kind of building block with strong insulative effectiveness and preparation method thereof
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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