CN107686334A - A kind of phosphogypsum powder flyash haydite and preparation method thereof - Google Patents

A kind of phosphogypsum powder flyash haydite and preparation method thereof Download PDF

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Publication number
CN107686334A
CN107686334A CN201710876538.2A CN201710876538A CN107686334A CN 107686334 A CN107686334 A CN 107686334A CN 201710876538 A CN201710876538 A CN 201710876538A CN 107686334 A CN107686334 A CN 107686334A
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flyash
haydite
clay
ardealite
powder
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CN107686334B (en
Inventor
杨永彬
杨步雷
邹国军
向前勇
李泽钢
宋维相
项军
罗进峰
焦树友
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GUIZHOU KAILIN PHOSPHOGYPSUM UTILIZATION Co Ltd
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GUIZHOU KAILIN PHOSPHOGYPSUM UTILIZATION Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/04—Clay; Kaolin
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/135—Combustion residues, e.g. fly ash, incineration waste
    • C04B33/1352—Fuel ashes, e.g. fly ash
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Processing Of Solid Wastes (AREA)
  • Fertilizers (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

The present invention relates to ardealite ceramic particle technology field, especially a kind of phosphogypsum powder flyash haydite and preparation method thereof, using substantial amounts of ardealite as raw material, and add clay, flyash, it is improved by clay is carried out into mixed grinding using urea phosphate into powder, the density and intensity of the effective haydite for prepare, improves haydite quality, so that ardealite application is expanded, ardealite utilization rate is improved.

Description

A kind of phosphogypsum powder flyash haydite and preparation method thereof
Technical field
The present invention relates to ardealite ceramic particle technology field, especially a kind of phosphogypsum powder flyash haydite and preparation method thereof.
Background technology
Ardealite is the main solid waste of China's phosphate fertilizer industry, and main component is dihydrate gypsum and semi-hydrated gypsum.According to Incomplete statistics, China's ardealite year total emission volumn exceed fifty-five million ton butt amount, and it is 2.5 hundred million tons to add up volume of cargo in storage.With me The development of state's high concentration phosphate fertilizer, the discharge capacity of ardealite will be increasing, not only causes serious environmental pollution, also turns into The significant problem of sulphur dioxide of phosphor chemical industry Faced In Sustainable Development.Therefore, ardealite is effectively treated, it is very urgent.
Flyash, is the fine ash that catching is got off from the flue gas after coal combustion, and flyash is the main of coal-burning power plant's discharge Solid waste.The oxide of flyash forms：SiO2、Al2O3And a small amount of FeO, Fe2O3、CaO、MgO、SO3、TiO2Deng.Its Middle SiO2And Al2O3Content can account for more than the 60% of total content.Flyash is one of larger industrial residue of the current discharge capacity in China, With the development of power industry, the flyash discharge capacity of coal-burning power plant increases year by year.Substantial amounts of flyash is untreated, will produce Raw airborne dust, pollutes air；River can be caused to silt up if being discharged into water system, and toxic chemical substance therein can also be to human body and biology Damage.
Haydite is the particle of ceramic, and surface is one layer of hard shell, and this layer of shell is in ceramic or enamel, and there is water proof to protect Gas acts on, and assigns haydite higher intensity.It is 25 ㎜ that the particle diameter of haydite, which is generally the maximum particle diameters of 5~20 ㎜,.Haydite one As be used for substituting rubble and cobble in concrete.
In the prior art, it is ardealite, flyash etc. is relatively more to prepare the investigative technique of haydite as raw material, but greatly Majority is all to be added ardealite, flyash in primary raw material in a manner of additive, and then prepares haydite so that right Ardealite, the utilization rate of flyash are relatively low；Haydite largely is prepared using ardealite even if having, and obtains the technology of other products Scheme produces, and its purpose is not directly to prepare haydite as raw material using ardealite, in turn results in ardealite and prepares haydite Cost it is higher, energy consumption is larger.
Based on this, this researcher passes through carries out rational proportion design to ardealite and flyash, with reference to other raw materials into The addition and processing divided, and the processing step and parameter of haydite preparation process are defined, prepare haydite skill for ardealite Art field provides a kind of new approaches.
The content of the invention
In order to solve above-mentioned technical problem present in prior art, the present invention provide a kind of phosphogypsum powder flyash haydite and Its preparation method.
It is achieved particular by following technical scheme：
A kind of phosphogypsum powder flyash haydite, material composition are ardealite 50-80 parts in parts by weight, clay 5-10 parts, powder Coal ash 8-12 parts, wherein clay are the powder formed with urea phosphate mixed grinding.
Described material composition is 60 parts of ardealite in parts by weight, 8 parts of clay, 10 parts of flyash.
Described clay, the mass ratio mixed with urea phosphate are 1:0.1-0.4.
Described grinding, process of lapping, which adds, the water for accounting for clay quality 11-15%, and after the completion of grinding, is placed in temperature Spend to handle 10-20min at 60-80 DEG C, sieve, be dried to constant weight.
Described sieving was the sieve of 80 mesh.
Described flyash, component content are SiO by percentage to the quality240-50%, Al2O310-20%, FeO0.2- 3%th, Fe2O38-15%, CaO2-7%, MgO6-9%, TiO23-8%, total amount 100%.
Described flyash, component content are SiO by percentage to the quality246%th, Al2O317%th, FeO3%, Fe2O313%th, CaO7%, MgO7%, TiO27%.
Above-mentioned phosphogypsum powder flyash haydite preparation method, comprises the following steps：
(1) ardealite is dried to constant weight, adds flyash and be ground to 40-200 mesh, add clay powders, stir, Adjustment moisture is 20-30%, obtains mixed-powder；
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 2-10mm of particle, then be placed on 40- Under conditions of 200 DEG C, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, are obtained To haydite.
Compared with prior art, the technique effect of the invention is embodied in：
By clay is used into the mixed and modified processing of urea phosphate, rational proportion design is carried out with ardealite, flyash, and It is prepared into haydite so that the haydite density of preparation significantly improves, and the intensity of haydite is greatly enhanced, Test by detection, as a result show, the invention haydite density is 337~415kg/m3, and is rolled by roller, and haydite is strong Degree has reached 9-11MPa.
Embodiment
Limited with reference to specific embodiment technical scheme is further, but claimed Scope is not only limited to made description.
Embodiment 1
Phosphogypsum powder flyash haydite, material composition are ardealite 50kg, clay 5kg, flyash 8kg by weight, wherein Clay is using mass ratio as 1 with urea phosphate:The powder that 0.1 mixed grinding forms.
Phosphogypsum powder flyash haydite preparation method, comprises the following steps：
(1) ardealite is dried to constant weight, adds flyash and be ground to 40 mesh, add clay powders, stir, adjust Moisture is 20%, obtains mixed-powder；
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 2mm of particle, then be placed on 40 DEG C Under the conditions of, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, obtain haydite.
Embodiment 2
Phosphogypsum powder flyash haydite, material composition are ardealite 80kg, clay 10kg, flyash 12kg by weight, its Middle clay is using mass ratio as 1 with urea phosphate:The powder that 0.4 mixed grinding forms.Described flyash, component content is with quality Percentages are SiO240%th, Al2O320%th, FeO2%, Fe2O315%th, CaO7%, MgO8%, TiO28%.
Phosphogypsum powder flyash haydite preparation method, comprises the following steps：
(1) ardealite is dried to constant weight, adds flyash and be ground to 100 mesh, add clay powders, stir, adjust Whole moisture is 25%, obtains mixed-powder；
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 8mm of particle, then be placed on 100 DEG C Under the conditions of, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, obtain haydite.
Embodiment 3
Phosphogypsum powder flyash haydite, material composition are ardealite 60kg, clay 8kg, flyash 10kg by weight, wherein Clay is using mass ratio as 1 with urea phosphate:The powder that 0.3 mixed grinding forms.Process of lapping adds and accounts for clay quality 14% Water, and after the completion of grinding, be placed in temperature to handle 15min at 70 DEG C, cross 80 mesh sieves, be dried to constant weight.Described fine coal Ash, component content are SiO by percentage to the quality250%th, Al2O315%th, FeO1%, Fe2O312%th, CaO6%, MgO8%, TiO28%.
Phosphogypsum powder flyash haydite preparation method, comprises the following steps：
(1) ardealite is dried to constant weight, adds flyash and be ground to 200 mesh, add clay powders, stir, adjust Whole moisture is 30%, obtains mixed-powder；
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 10mm of particle, then be placed on 200 DEG C Under conditions of, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, are made pottery Grain.
Embodiment 4
Phosphogypsum powder flyash haydite, material composition are ardealite 50kg, clay kg, flyash 9kg by weight, wherein viscous Soil is using mass ratio as 1 with urea phosphate:The powder that 0.3 mixed grinding forms.Process of lapping, which adds to have, accounts for clay quality 12% Water, and after the completion of grinding, it is that 20min is handled at 80 DEG C to be placed in temperature, crosses 80 mesh sieves, is dried to constant weight.Described flyash, Component content is SiO by percentage to the quality249%th, Al2O310%th, FeO3%, Fe2O315%th, CaO6%, MgO9%, TiO28%.
Phosphogypsum powder flyash haydite preparation method, comprises the following steps：
(1) ardealite is dried to constant weight, adds flyash and be ground to 40 mesh, add clay powders, stir, adjust Moisture is 20%, obtains mixed-powder；
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 10mm of particle, then be placed on 40 DEG C Under the conditions of, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, obtain haydite.
Embodiment 5
Phosphogypsum powder flyash haydite, material composition are ardealite 80kg, clay 5kg, flyash 8kg by weight, wherein Clay is using mass ratio as 1 with urea phosphate:The powder that 0.1 mixed grinding forms.Process of lapping adds and accounts for clay quality 15% Water, and after the completion of grinding, be placed in temperature to handle 10min at 60 DEG C, cross 80 mesh sieves, be dried to constant weight.Described fine coal Ash, component content are SiO by percentage to the quality246%th, Al2O317%th, FeO3%, Fe2O313%th, CaO7%, MgO7%, TiO27%.
Phosphogypsum powder flyash haydite preparation method, comprises the following steps：
(1) ardealite is dried to constant weight, adds flyash and be ground to 40 mesh, add clay powders, stir, adjust Moisture is 30%, obtains mixed-powder；
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 9mm of particle, then be placed on 100 DEG C Under the conditions of, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, obtain haydite.
Enter line density and roller rolling compression strength detection to the embodiment 1-5 haydites prepared, as a result as shown in table 1：
Table 1
By the data of upper table 1 show it can be seen from the invention the substantial amounts of ardealite of use as raw material, and add viscous Soil, flyash, by clay is carried out into mixed grinding into powder using urea phosphate, the density of the effective haydite for prepare with And intensity is improved, haydite quality is improved so that ardealite application is expanded, and improves ardealite utilization Rate.

Claims (8)

1. a kind of phosphogypsum powder flyash haydite, it is characterised in that material composition is ardealite 50-80 parts in parts by weight, clay 5-10 parts, wherein flyash 8-12 parts, clay are the powder formed with urea phosphate mixed grinding.
2. phosphogypsum powder flyash haydite as claimed in claim 1, it is characterised in that described material composition is in parts by weight 60 parts of ardealite, 8 parts of clay, 10 parts of flyash.
3. phosphogypsum powder flyash haydite as claimed in claim 1, it is characterised in that described clay, mixed with urea phosphate Mass ratio is 1:0.1-0.4.
4. phosphogypsum powder flyash haydite as claimed in claim 1, it is characterised in that described grinding, process of lapping, which adds, to be had Clay quality 11-15% water is accounted for, and after the completion of grinding, it is to handle 10-20min at 60-80 DEG C to be placed in temperature, sieves, dries Do to constant weight.
5. phosphogypsum powder flyash haydite as claimed in claim 4, it is characterised in that described sieving was the sieve of 80 mesh.
6. phosphogypsum powder flyash haydite as claimed in claim 1, it is characterised in that described flyash, component content is with matter Amount percentages are SiO240-50%, Al2O310-20%, FeO0.2-3%, Fe2O38-15%, CaO2-7%, MgO6- 9%th, TiO23-8%, total amount 100%.
7. the phosphogypsum powder flyash haydite as described in claim 1 or 6, it is characterised in that described flyash, component content with Mass percent is calculated as SiO246%th, Al2O317%th, FeO3%, Fe2O313%th, CaO7%, MgO7%, TiO27%.
8. the phosphogypsum powder flyash haydite preparation method as described in claim any one of 1-7, it is characterised in that including following step Suddenly：
(1) ardealite is dried to constant weight, adds flyash and be ground to 40-200 mesh, add clay powders, stir, adjust Moisture is 20-30%, obtains mixed-powder；
(2) mixed-powder is placed in comminutor and be granulated, and cause a diameter of 2-10mm of particle, then be placed on 40-200 DEG C Under conditions of, the pre-heat treatment 30min, 1200 DEG C of calcination processing 180min then are warming up in 10min, natural cooling, are made pottery Grain.
CN201710876538.2A 2017-09-25 2017-09-25 Phosphogypsum fly ash ceramsite and preparation method thereof Expired - Fee Related CN107686334B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114890701A (en) * 2022-05-09 2022-08-12 成都理工大学 Environment-friendly economical ceramsite for plateau building concrete and preparation method and application thereof
CN115215678A (en) * 2022-05-19 2022-10-21 湖北省长江资源循环利用及装备创新中心有限公司 Organic slag clay light ceramsite produced by flotation of phosphogypsum and preparation method thereof

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CN104231890A (en) * 2014-08-27 2014-12-24 南京市荣达树脂有限公司 flame retardant coating for cars and preparation method thereof
CN106083156A (en) * 2016-06-28 2016-11-09 平凉华晨非金属应用科技有限公司 Desulfurated plaster lightweight through hole haydite
CN106116496A (en) * 2016-06-28 2016-11-16 平凉华晨非金属应用科技有限公司 Phosphogypsum light through hole haydite
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CN104231890A (en) * 2014-08-27 2014-12-24 南京市荣达树脂有限公司 flame retardant coating for cars and preparation method thereof
CN106083156A (en) * 2016-06-28 2016-11-09 平凉华晨非金属应用科技有限公司 Desulfurated plaster lightweight through hole haydite
CN106116496A (en) * 2016-06-28 2016-11-16 平凉华晨非金属应用科技有限公司 Phosphogypsum light through hole haydite
CN107674455A (en) * 2017-08-30 2018-02-09 贵州紫云月华新材料有限公司 A kind of calcium carbonate modifier and its method of modifying

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114890701A (en) * 2022-05-09 2022-08-12 成都理工大学 Environment-friendly economical ceramsite for plateau building concrete and preparation method and application thereof
CN115215678A (en) * 2022-05-19 2022-10-21 湖北省长江资源循环利用及装备创新中心有限公司 Organic slag clay light ceramsite produced by flotation of phosphogypsum and preparation method thereof
CN115215678B (en) * 2022-05-19 2023-07-25 湖北省长江资源循环利用及装备创新中心有限公司 Organic residue clay light ceramsite of phosphogypsum product and preparation method thereof

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