CN109354445A - A kind of preparation method of non-sintered lytag - Google Patents
A kind of preparation method of non-sintered lytag Download PDFInfo
- Publication number
- CN109354445A CN109354445A CN201811191425.XA CN201811191425A CN109354445A CN 109354445 A CN109354445 A CN 109354445A CN 201811191425 A CN201811191425 A CN 201811191425A CN 109354445 A CN109354445 A CN 109354445A
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- Prior art keywords
- lytag
- sintered
- preparation
- flyash
- foaming agent
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Classifications
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/006—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mineral polymers, e.g. geopolymers of the Davidovits type
-
- 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
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention discloses a kind of preparation method of non-sintered lytag, raw material components and its quality compare content are as follows: flyash 70~95%, miberal powder 5~30%, Desulphurization 1~30%, alkali-activator 5~20%, foaming agent 0.1~0.7%;First flyash, miberal powder and Desulphurization are mixed in mass ratio, alkali-activator (sodium hydroxide) and foaming agent (aluminium powder) are added, mist projection granulating after uniform stirring, natural curing is for 24 hours, then at 80 ° of steam curings, non-sintered lytag is made.The present invention provides a kind of low in cost, simple process, small, high comprehensive performance the lytag of pollution, water absorption rate 12%, cylindrical compress strength 5.345MPa, apparent density 1.476g/cm3。
Description
Technical field
The ceramic composition that the invention belongs to a kind of characterized by ingredient, in particular to a kind of low energy consumption, non-sintered system
The method of standby lytag.
Background technique
Flyash will be produced after coal-burning power plant will be milled down to 100 μm of coal dusts below preheated air penetrating burner hearth suspension combustion
The mixture of raw fine particle, chemical component are mainly Al2O3, SiO2, Fe2O3, CaO etc., a large amount of discharge meetings of flyash
Cause serious environmental pollution.
Due to containing Al, Si etc. in flyash, large specific surface area has biggish adsorption capacity.Therefore it is with flyash
Addition binder and exciting agent is added, using unburned Process Production lytag in primary raw material.
Prepare lytag by raw material of industrial waste, cheap, universality is strong, have biggish economic benefit and
Social benefit.But there is also the space promoted, internal flaws in performances such as cylindrical compress strength, water absorption rates for non-sintered lytag
It is prepared compared with sintering process more.Lytag explores suitable industrial mass production how on the basis of reducing energy consumption
Proportion scheme and technological parameter are a new projects.
Summary of the invention
The purpose of invention is on the basis of existing technology, to explore industrial-scale using waste material and produce flyash ceramic
The process of grain, the present invention is not sintered without adding additive costly yet, but selects the behaviour of simple possible
Make step and industrial waste cheap and easy to get.It is small, high comprehensive performance to provide a kind of low in cost, simple process, pollution
Non-sintered fly ash-desulfuration ash haydite.
The present invention is achieved by following technology.
A kind of preparation method of non-sintered lytag, raw material components and its mass percentage content are as follows: flyash 70
~95%, miberal powder 5~30%, additional Desulphurization 1~30%, alkali-activator 5~20%, foaming agent 0.1~0.7%.
The preparation method of above-mentioned non-sintered lytag has following steps:
(1) raw material components and its mass percentage content flyash 70~95%, miberal powder 5~30%, additional Desulphurization 1 are pressed
~30% carries out ingredient, is put into blender, stirs evenly;
(2) in the raw material that step (1) stirs evenly additional mass percentage content be 5~20% exciting agent, 0.1~
0.7% foaming agent is mixed, and forms porous slurry, then porous slurry is placed in pan-pelletizer, mist projection granulating obtains fine coal
Grey haydite green body;
(3) step (2) are formed to obtained lytag green body, for 24 hours, subsequent steam is supported for natural curing at normal temperature
Shield, is made non-sintered lytag.
The alkali-activator of the step (2) is the sodium hydroxide solution that concentration is 96%, and foaming agent is aluminium powder.
Water, material mass ratio in the globulation of the step (3) are 3:10.
The steam curing system of the step (3) be 80 DEG C steam curing 8 hours.
The present invention provides a kind of low in cost, simple processes, small, high comprehensive performance the non-sintered flyash ceramic of pollution
Grain.The material water absorption rate is 12%, cylindrical compress strength 5.345MPa, apparent density 1.476g/cm3。
Detailed description of the invention
Fig. 1 is the illustraton of model of the non-sintered lytag of the present invention.
Specific embodiment
Additive therefor of the present invention is commercially available industrial chemicals, and raw materials for production are industrial waste, below with reference to specific implementation
The present invention is further illustrated for example.
Embodiment 1
(1) 85 grams of flyash are weighed with electronic balance, 15 grams of miberal powder, 7 grams of Desulphurization, is put into cement paste blender and stirs
90s is mixed, uniformly mixed raw material is obtained;
(2) in the raw material that step (1) stirs evenly additional mass percentage content be 12.63% exciting agent, 0.7%
Foaming agent (aluminium powder) mixing, form porous slurry, then porous slurry is placed in pan-pelletizer, mist projection granulating obtains flyash
Haydite green body;
(3) molding is obtained into lytag green body and is placed in natural curing 24 hours in cement standard fog room, then in
80 ° of steam curing 8h, are made non-sintered lytag.
The detection method of lytag performance is as follows:
(1) the Pottery product 30g for weighing clean dry, is put into graduated cylinder the 1h that soaks, (if any particles float in waterborne, it must
Must be pressed into water with the circular metal of handle) in take out, pour into aperture be 0.08mm sieve on, draining 1-2min.Then
It is poured on the towel wrung out, grasps towel both ends, become flute profile, sample is allowed to roll around 8-10 times on towel,
It pours into porcelain dish.Sample is poured into the Li Shi specific gravity bottle that the water surface is zero graduation, reads water surface scale, sample is finally calculated
Apparent density.
(2) according to the measuring method of apparent density above, the water absorption rate of haydite sample is finally calculated.
(3) it weighs haydite sample and is packed into pressure-bearing cylinder, sample is filled to slightly above pressure-bearing cylinder, is placed on concrete test shake table
After vibrating 3s, then adding haydite sample still makes it be slightly above pressure-bearing cylinder, then puts to 5s is vibrated on shake table, if sample continues to be higher than
Pressure-bearing cylinder then flushes with doctor blade sample with nozzle, tests under press machine, the cylindrical compress strength of haydite is finally calculated.
Above-mentioned test method is referring to the artificial haydite standard of CJ/T229-2008 water process.
The correlated performance test result of embodiment 1 are as follows: cylindrical compress strength 5.345Mpa, water absorption rate 12%, apparent density are
1.476g/cm3。
Fig. 1 is the illustraton of model of the non-sintered lytag of the present invention, as can be seen from Figure, non-sintered lytag
Diameter is 1cm or so.
Embodiment 2
Except the additive amount of flyash is 95 grams in embodiment 2, the additive amount of miberal powder is other processes other than 5 grams
It is same as Example 1.
The dependence test result of embodiment 2 are as follows: cylindrical compress strength 5.248Mpa, water absorption rate 8.79%, apparent density are
1.481g/cm3。
Embodiment 3
Except the additive amount of flyash is 70 grams in embodiment 3, the additive amount of miberal powder is other processes other than 30 grams
It is same as Example 1.
The dependence test result of embodiment 3 are as follows: cylindrical compress strength 5.210Mpa, water absorption rate 10.52%, apparent density are
1.492g/cm3。
Embodiment 4
In embodiment 4 in addition to the additive amount of foaming agent (aluminium powder) is 0.1%, other processes are same as Example 1.
The dependence test result of embodiment 4 are as follows: cylindrical compress strength 5.641Mpa, water absorption rate 9.56%, apparent density are
1.485g/cm3。
Embodiment 5
In embodiment 5 in addition to the additive amount of foaming agent (aluminium powder) is 0.3%, other processes are same as Example 1.
The dependence test result of embodiment 3 are as follows: cylindrical compress strength 5.549Mpa, water absorption rate 9.6%, apparent density are
1.480g/cm3。
Embodiment 6
In embodiment 6 in addition to the additive amount of foaming agent (aluminium powder) is 0.5%, other processes are same as Example 1.
The dependence test result of embodiment 4 are as follows: cylindrical compress strength 5.481Mpa, water absorption rate 9.8%, apparent density are
1.479g/cm3。
Above example is only the illustrative description done to the present invention, it should which explanation is not departing from core of the invention
In the case where the heart, it is any it is simple deformation, modification or other skilled in the art can not spend creative work etc.
Protection scope of the present invention is each fallen with replacement.
Claims (4)
1. a kind of preparation method of non-sintered lytag, raw material components and its mass percentage content are as follows: flyash 70~
95%, miberal powder 5~30%, additional Desulphurization 1~30%, alkali-activator 5~20%, foaming agent 0.1~0.7%.
The preparation method of above-mentioned non-sintered lytag has following steps:
(1) raw material components and its mass percentage content flyash 70~95% are pressed, miberal powder 5~30%, additional Desulphurization 1~
30% carries out ingredient, is put into blender, stirs evenly;
(2) in the raw material that step (1) stirs evenly additional mass percentage content be 5~20% exciting agent, 0.1~
0.7% foaming agent is mixed, and forms porous slurry, then porous slurry is placed in pan-pelletizer, mist projection granulating obtains fine coal
Grey haydite green body;
(3) step (2) are formed to obtained lytag green body, for 24 hours, subsequent steam curing is made for natural curing at normal temperature
Obtain non-sintered lytag.
2. a kind of preparation method of non-sintered lytag according to claim 1, which is characterized in that the step
(2) alkali-activator is the sodium hydroxide solution that concentration is 96%, and foaming agent is aluminium powder.
3. a kind of preparation method of non-sintered lytag according to claim 1, which is characterized in that the step
(3) the water in globulation, material mass ratio is 3:10.
4. a kind of preparation method of non-sintered lytag according to claim 1, which is characterized in that the step
(3) steam curing system be 80 DEG C steam curing 8 hours.
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110776289A (en) * | 2019-10-14 | 2020-02-11 | 合肥工业大学 | Light high-strength ceramsite concrete and preparation method and application thereof |
CN111205061A (en) * | 2020-01-14 | 2020-05-29 | 安徽省高迪环保股份有限公司 | Preparation method of baking-free high-strength fly ash ceramsite |
CN111548112A (en) * | 2020-06-17 | 2020-08-18 | 山西大学 | Water purification type baking-free ceramsite and preparation method thereof |
CN111620658A (en) * | 2020-06-17 | 2020-09-04 | 山西大学 | Porous fly ash non-sintered ceramsite and preparation method thereof |
CN112794665A (en) * | 2020-12-28 | 2021-05-14 | 贺州学院 | Preparation method of high-closed-pore-rate non-sintered porous ceramsite |
CN113173748A (en) * | 2021-06-11 | 2021-07-27 | 宁波工程学院 | Steel slag desulfurization byproduct solidified sludge-based non-sintered ceramsite and preparation method thereof |
CN113461369A (en) * | 2021-01-12 | 2021-10-01 | 山西鼎正环保建材有限公司 | Method for preparing non-sintered fly ash ceramsite through steam curing |
CN116986829A (en) * | 2023-06-13 | 2023-11-03 | 中国地质大学(武汉) | Semi-dry desulfurization ash-fly ash-slag composite cementing material and preparation method thereof |
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CN102092994A (en) * | 2010-11-25 | 2011-06-15 | 大连恒翔粉煤灰综合利用有限公司 | Fly ash sintering-free ceramsite |
CN103224350A (en) * | 2013-05-10 | 2013-07-31 | 德州先科地质聚合物研究所 | Coal ash geopolymer self-thermal-insulation building block and manufacturing technology thereof |
CN103553556A (en) * | 2013-10-28 | 2014-02-05 | 山西聚义宝鑫新材料有限公司 | Method for producing building ceramsites by using coal slime, municipal sludge and desulfurized fly ash |
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Patent Citations (4)
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KR100995606B1 (en) * | 2010-07-23 | 2010-11-19 | 신재훈 | Environment friendly fireproof panel |
CN102092994A (en) * | 2010-11-25 | 2011-06-15 | 大连恒翔粉煤灰综合利用有限公司 | Fly ash sintering-free ceramsite |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110776289A (en) * | 2019-10-14 | 2020-02-11 | 合肥工业大学 | Light high-strength ceramsite concrete and preparation method and application thereof |
CN110776289B (en) * | 2019-10-14 | 2021-12-21 | 合肥工业大学 | Light high-strength ceramsite concrete and preparation method and application thereof |
CN111205061A (en) * | 2020-01-14 | 2020-05-29 | 安徽省高迪环保股份有限公司 | Preparation method of baking-free high-strength fly ash ceramsite |
CN111205061B (en) * | 2020-01-14 | 2021-12-21 | 安徽省高迪循环经济产业园股份有限公司 | Preparation method of baking-free high-strength fly ash ceramsite |
CN111548112A (en) * | 2020-06-17 | 2020-08-18 | 山西大学 | Water purification type baking-free ceramsite and preparation method thereof |
CN111620658A (en) * | 2020-06-17 | 2020-09-04 | 山西大学 | Porous fly ash non-sintered ceramsite and preparation method thereof |
CN112794665A (en) * | 2020-12-28 | 2021-05-14 | 贺州学院 | Preparation method of high-closed-pore-rate non-sintered porous ceramsite |
CN112794665B (en) * | 2020-12-28 | 2022-05-06 | 贺州学院 | Preparation method of high-closed-pore-rate non-sintered porous ceramsite |
CN113461369A (en) * | 2021-01-12 | 2021-10-01 | 山西鼎正环保建材有限公司 | Method for preparing non-sintered fly ash ceramsite through steam curing |
CN113173748A (en) * | 2021-06-11 | 2021-07-27 | 宁波工程学院 | Steel slag desulfurization byproduct solidified sludge-based non-sintered ceramsite and preparation method thereof |
CN116986829A (en) * | 2023-06-13 | 2023-11-03 | 中国地质大学(武汉) | Semi-dry desulfurization ash-fly ash-slag composite cementing material and preparation method thereof |
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