CN104119052B - A kind of utilize dealkalize red mud and red mud iron selection tailings to prepare inorganic clad plate and preparation method - Google Patents

A kind of utilize dealkalize red mud and red mud iron selection tailings to prepare inorganic clad plate and preparation method Download PDF

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Publication number
CN104119052B
CN104119052B CN201410285626.1A CN201410285626A CN104119052B CN 104119052 B CN104119052 B CN 104119052B CN 201410285626 A CN201410285626 A CN 201410285626A CN 104119052 B CN104119052 B CN 104119052B
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CN
China
Prior art keywords
red mud
dealkalize
iron selection
selection tailings
aluminosulfate cement
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CN201410285626.1A
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Chinese (zh)
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CN104119052A (en
Inventor
段广彬
张秀芝
王文龙
刘宗明
侯清月
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济南大学
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Priority to CN201410285626.1A priority Critical patent/CN104119052B/en
Priority claimed from CN201610009329.3A external-priority patent/CN105669144B/en
Publication of CN104119052A publication Critical patent/CN104119052A/en
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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 discloses a kind of utilize dealkalize red mud and red mud iron selection tailings to prepare inorganic clad plate and preparation method, it is characterized in that, comprise the batching of following weight part: aluminosulfate cement 200-250, dealkalize red mud 300-400, red mud iron selection tailings 350-400, polyacrylonitrile fibre 10-20 and water 60-100.The present invention utilizes aluminosulfate cement as jelling agent, using dealkalize red mud, red mud iron selection tailings, polyacrylonitrile fibre as main raw material, adopts the technique preparation of compression moulding, carries out maintenance in atmosphere.The inorganic composite plate of preparation has the excellent specific properties such as lightweight, high-strength, sound insulation, fire-retardant, shock resistance; Discussion on architecture wall can be widely used in; it is large that this composition board consumes Industrial Solid Waste amount, is conducive to save energy, protection of the environment, and can be building energy saving field and develop new plate product.

Description

A kind of utilize dealkalize red mud and red mud iron selection tailings to prepare inorganic clad plate and preparation method
Technical field
The present invention relates to novel wall material field, specifically, relate to a kind of utilize dealkalize red mud and red mud iron selection tailings to prepare inorganic clad plate and preparation method.
Background technology
The comprehensive utilization of resources of trade waste and building energy conservation have become the fundamental state policy of China, therefore, utilize the development of large trade waste to meet the New Building Materials of compound national standard extremely urgent, also become vast researcher inescapable responsibility.
Inorganic composite materials has due to it extensive concern that advantages such as stable performance, deformation coefficient is little, ageing resistance is strong are subject to the application of building trade inside and outside wall board.Therefore, composition board prepared by the solid inorganic materials such as red mud is applied in materials for wall, there is popularizing application prospect widely.
At present, along with China's industrial technology and expanding economy, large Industrial Solid Waste bulk deposition such as red mud.Only for red mud, within 2014, accumulative volume of cargo in storage will reach 2.8 hundred million tons.These solid wastes are less than recycling, and land occupation, waste resource, easily causes environmental pollution and potential safety hazard again, bring huge loss to the production of the people, life and the development of the national economy.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of utilize dealkalize red mud and red mud iron selection tailings to prepare inorganic clad plate and preparation method, save energy, protection of the environment.
A kind of inorganic clad plate utilizing dealkalize red mud and red mud iron selection tailings to prepare, it is characterized in that, comprise the batching of following weight part: aluminosulfate cement 200-250, dealkalize red mud 300-400, red mud iron selection tailings 350-400, polyacrylonitrile fibre 10-20 and water 60-100.
As the further restriction to the technical program, the concrete component of batching is: aluminosulfate cement 225, dealkalize red mud 350, red mud iron selection tailings 375, polyacrylonitrile fibre 15 and water 80.
The invention also discloses a kind of method utilizing dealkalize red mud and red mud iron selection tailings to prepare inorganic clad plate, it is characterized in that, comprise the steps:
(1) boric acid retardant will be added in aluminosulfate cement;
(2) be treated to Powdered by dealkalize red mud and red mud iron selection tailings through super-dry, fragmentation and grinding, diameier controls to tail over not higher than 10% at 80 microns of square hole sieves;
(4) using dealkalize red mud, red mud iron selection tailings and polyacrylonitrile fibre as main raw material, to the aluminosulfate cement of boric acid retardant be added as jelling agent, add water and stir after water reducer, at room temperature, employing forming pressure is 1.5-2.5MPa, compression moulding sheet material;
(5) maintenance in atmosphere, obtained fine and close composition board, according to construction needs, cuts according to size requirements.
Compared with prior art, advantage of the present invention and positively effect are: the present invention utilizes aluminosulfate cement as jelling agent, using dealkalize red mud, red mud iron selection tailings, polyacrylonitrile fibre as main raw material, adopt the technique preparation of compression moulding, carry out maintenance in atmosphere.The inorganic composite plate of preparation has the excellent specific properties such as lightweight, high-strength, sound insulation, fire-retardant, shock resistance; Discussion on architecture wall can be widely used in; it is large that this composition board consumes Industrial Solid Waste amount, is conducive to save energy, protection of the environment, and can be building energy saving field and develop new plate product.
Accompanying drawing explanation
Fig. 1 is the structural representation of inorganic clad plate of the present invention.
Fig. 2 is inorganic clad plate production process of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the present invention is further described in detail.
Embodiment one
Get aluminosulfate cement 200 kilograms, dealkalize red mud 300 kilograms, red mud iron selection tailings 350 kilograms, polyacrylonitrile fibre 10 kilograms and 60 kilograms, water, boric acid retardant will be added in aluminosulfate cement, boric acid retardant accounts for 0.2% of silico-aluminate cement weight, and the model that aluminosulfate cement selects Qufu Zhonglian Cement Co., Ltd. to produce is the cement of R.SAC42.5.Be treated to Powdered by aluminosulfate cement, dealkalize red mud and red mud iron selection tailings, diameier requires that 80 microns of square hole sieves tail over not higher than 10%; Using dealkalize red mud, red mud iron selection tailings and polyacrylonitrile fibre as main raw material, to the aluminosulfate cement of boric acid retardant be added as jelling agent, add water and stir after water reducer, wherein, water reducer accounts for 0.6% of aluminosulfate cement, dealkalize red mud, red mud iron selection tailings, polyacrylonitrile fibre and water gross weight, at room temperature, employing forming pressure is 1.5-2.5Mpa, compression moulding sheet material.Inorganic clad plate of the present invention is of a size of 600mm × 200mm × 90mm, and carry out technical feature test with reference to GB/T23451-2009 " light partition board for building " standard, test result is as table 1.
Table 1
Interventions Requested Unit Measured data
Shock resistance Plate face flawless after 5 Secondary Shocks experiments
Bending strength/ MPa 8.8
Mean compressive strength/ MPa 50.4
Coefficient of softening 0.92
Area density/ kg/m3 88
Water ratio % 6
Hanging force Leakless
Frost resistance 15 freeze-thaw cycle flawlesses, surface is unchanged
Combustionproperty rank A1
Embodiment two
Get aluminosulfate cement 250 kilograms (number), dealkalize red mud 400 kilograms, red mud iron selection tailings 400 kilograms, polyacrylonitrile fibre 20 kilograms and water double centner, boric acid retardant will be added in aluminosulfate cement, boric acid retardant accounts for 0.2% of silico-aluminate cement weight, and the model that aluminosulfate cement selects Qufu Zhonglian Cement Co., Ltd. to produce is the cement of R.SAC42.5.Be treated to Powdered by aluminosulfate cement, dealkalize red mud and red mud iron selection tailings, diameier requires that 80 microns of square hole sieves tail over not higher than 10%; Using dealkalize red mud, red mud iron selection tailings and polyacrylonitrile fibre as main raw material, to the aluminosulfate cement of boric acid retardant be added as jelling agent, add water and stir after water reducer, wherein, water reducer accounts for 0.6% of aluminosulfate cement, dealkalize red mud, red mud iron selection tailings, polyacrylonitrile fibre and water gross weight, at room temperature, employing forming pressure is 1.5-2.5Mpa, compression moulding sheet material.
In the building body utilizing the solid wastes such as dealkalize red mud to prepare, external application compact inorganic composition board is of a size of 1000mm × 400mm × 90mm, and carry out technical feature test with reference to GB/T23451-2009 " light partition board for building " standard, test result is as table 2.
Interventions Requested Unit Measured data
Shock resistance Plate face flawless after 5 Secondary Shocks experiments
Bending strength/ MPa 9.4
Mean compressive strength/ MPa 53.2
Coefficient of softening 0.92
Area density/ kg/m3 86
Water ratio % 6
Hanging force Leakless
Frost resistance 15 freeze-thaw cycle flawlesses, surface is unchanged
Combustionproperty rank A1
Embodiment three
Get aluminosulfate cement 225 kilograms, dealkalize red mud 350 kilograms, red mud iron selection tailings 375 kilograms, polyacrylonitrile fibre 15 kilograms and 80 kilograms, water.To add boric acid retardant in aluminosulfate cement, boric acid retardant accounts for 0.2% of silico-aluminate cement weight, and the model that aluminosulfate cement selects Qufu Zhonglian Cement Co., Ltd. to produce is the cement of R.SAC42.5.Be treated to Powdered by aluminosulfate cement, dealkalize red mud and red mud iron selection tailings, diameier requires that 80 microns of square hole sieves tail over not higher than 10%; Using dealkalize red mud, red mud iron selection tailings and polyacrylonitrile fibre as main raw material, to the aluminosulfate cement of boric acid retardant be added as jelling agent, add water and stir after water reducer, wherein, water reducer accounts for 0.6% of aluminosulfate cement, dealkalize red mud, red mud iron selection tailings, polyacrylonitrile fibre and water gross weight, at room temperature, employing forming pressure is 1.5-2.5MPa, compression moulding sheet material.
In utilize industrial residue to fire building body prepared by aluminosulfate cement, external application compact inorganic composition board is of a size of 800mm × 300mm × 90mm, carry out technical feature test with reference to GB/T23451-2009 " light partition board for building " standard, test result is as table 3.
Interventions Requested Unit Measured data
Shock resistance Plate face flawless after 5 Secondary Shocks experiments
Bending strength/ MPa 9.2
Mean compressive strength/ MPa 51.2
Coefficient of softening 0.91
Area density/ kg/m3 84
Water ratio % 7
Hanging force Leakless
Frost resistance 15 freeze-thaw cycle flawlesses, surface is unchanged
Combustionproperty rank A1
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited only to above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also belong to protection scope of the present invention.

Claims (2)

1. the inorganic clad plate utilizing dealkalize red mud and red mud iron selection tailings to prepare, it is characterized in that, comprise the batching of following weight part: aluminosulfate cement 200-250, dealkalize red mud 300-400, red mud iron selection tailings 350-400, polyacrylonitrile fibre 10-20 and water 60-100.
2. the inorganic clad plate utilizing dealkalize red mud and red mud iron selection tailings to prepare according to claim 1, it is characterized in that, the concrete component of batching is: aluminosulfate cement 225, dealkalize red mud 350, red mud iron selection tailings 375, polyacrylonitrile fibre 15 and water 80.
CN201410285626.1A 2014-06-24 2014-06-24 A kind of utilize dealkalize red mud and red mud iron selection tailings to prepare inorganic clad plate and preparation method CN104119052B (en)

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CN201610009329.3A CN105669144B (en) 2014-06-24 2014-06-24 A method of preparing inorganic clad plate using dealkalize red mud and red mud iron selection tailings

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KR101027451B1 (en) * 2010-03-12 2011-04-06 (주)코스펙 Very light reinforcement materials manufacturing method and reinforcement method of concrete construction using that
CN102093004A (en) * 2010-12-13 2011-06-15 郭东京 Composite tailing non-fired and non-steamed building block brick and preparation method thereof
CN102500596B (en) * 2011-10-20 2013-08-07 安徽理工大学 Red mud harmless comprehensive recycling technology suitable for Bayer process
CN103804012B (en) * 2012-11-14 2015-07-29 神华集团有限责任公司 A kind of fire-retardant heat-insulation material and its preparation method and application
CN103172325B (en) * 2013-03-08 2014-12-31 洛阳大豫实业有限公司 Making method of ultralow-heat-conduction inorganic fireproof heat insulation board

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