CN116444288A - Formula for producing aerated concrete block by aiming at inferior lignite clean combustion solid waste - Google Patents
Formula for producing aerated concrete block by aiming at inferior lignite clean combustion solid waste Download PDFInfo
- Publication number
- CN116444288A CN116444288A CN202310540077.7A CN202310540077A CN116444288A CN 116444288 A CN116444288 A CN 116444288A CN 202310540077 A CN202310540077 A CN 202310540077A CN 116444288 A CN116444288 A CN 116444288A
- Authority
- CN
- China
- Prior art keywords
- lignite
- inferior
- solid waste
- formula
- aiming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003077 lignite Substances 0.000 title claims abstract description 22
- 239000002910 solid waste Substances 0.000 title claims abstract description 20
- 239000004567 concrete Substances 0.000 title claims abstract description 12
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 7
- 239000010440 gypsum Substances 0.000 claims abstract description 8
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 8
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 11
- 235000012255 calcium oxide Nutrition 0.000 claims description 7
- 239000000292 calcium oxide Substances 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000004566 building material Substances 0.000 abstract description 7
- 239000002893 slag Substances 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000002956 ash Substances 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 230000029087 digestion Effects 0.000 description 3
- 210000001161 mammalian embryo Anatomy 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000010883 coal ash Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- 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
-
- 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 aims to recycle solid waste generated by burning inferior lignite in a boiler, integrate resources and circularly produce the solid waste, solve the problems of constrained solid waste disposal, high environmental protection pressure, high cost and the like, and provide a formula for producing aerated concrete blocks by cleanly burning the solid waste aiming at the inferior lignite. The novel environment-friendly building material is prepared by taking solid wastes such as slag, returned ash, dust removal ash, desulfurized gypsum and the like generated by the clean combustion operation of the inferior lignite as partial raw materials according to a certain proportion.
Description
Technical Field
The invention relates to the field of building materials, in particular to a formula for producing aerated concrete blocks by cleaning and burning solid wastes aiming at inferior lignite.
Background
The domestic power generation and heat supply mainly take fossil fuel, a large amount of solid waste can be generated by adopting system equipment for clean combustion operation of inferior lignite, and the solid waste such as slag, returned ash, dust removal ash, desulfurized gypsum and the like generated by operation is usually transported to a cement plant and a building material plant for disposal by adopting an automobile, but the solid waste disposal is greatly restricted by the cement plant and the building material plant and cannot form stable disposal guarantee, so that a large amount of slag, furnace ash and gypsum are accumulated, and environmental protection pressure is greatly increased and disposal cost is additionally increased.
Disclosure of Invention
The invention aims to recycle solid waste, integrate resources, circularly produce, solve the problems of constrained solid waste disposal, high environmental protection pressure, high cost and the like, and provide a formula for producing aerated concrete blocks by cleanly burning the solid waste with inferior lignite. The novel environment-friendly building material is prepared by taking solid wastes such as slag, returned ash, dust removal ash, desulfurized gypsum and the like generated by the clean combustion operation of the inferior lignite as partial raw materials according to a certain proportion.
After the inferior lignite is combusted by the boiler, the main components of the inferior lignite fly ash are silicon oxide, aluminum oxide, ferric oxide, calcium oxide and the like, and generally the content of the silicon oxide is 40-60%, the content of the aluminum oxide is 15-40%, the content of the ferric oxide is 10-20%, and the content of the calcium oxide is 2-10%. .
The formula comprises the following components: 55-65% of inferior lignite fly ash, 10-15% of quicklime powder, 15-25% of cement, 2-3% of desulfurized gypsum, 1-3% of aluminum powder paste, and the ratio of water to dry materials is 0.7:1.
Each component and effect:
inferior lignite fly ash: under the action of water heat, more hydrate is generated, the strength of the product is enhanced, and the dryness of the product is reduced;
quicklime powder: under the action of water heat, more hydrate is generated, the strength of the product is enhanced, and the gas generation, thickening and hardening of slurry are accelerated;
and (3) cement: and the thickening time of the slurry is regulated, so that the casting stability of the slurry is ensured. The hydration, coagulation and hardening of the cement can improve the strength of the embryo body and enhance the strength and durability of the product;
gypsum: inhibiting lime digestion, regulating lime digestion speed, and reducing digestion temperature; the intensity of the embryo body is increased, and the damage of the embryo body is reduced; promoting evolution, and improving product strength;
aluminum powder paste: the reaction in the alkaline slurry produces enough hydrogen gas to be uniformly distributed in the slurry, so that a plurality of tiny air holes are formed, and the air holes have a good air hole structure.
The invention has the beneficial effects that: the invention comprehensively utilizes the inferior lignite coal ash solid waste as resources, changes waste into valuable, and produces a novel building material of qualified and environment-friendly silicate building blocks for buildings. Compared with common baked bricks, the low-quality lignite and fly ash aerated concrete block does not need to be baked, has low fuel consumption, reduces the pollution to the atmosphere, is not influenced by season and climate, can be produced all year round, solves the problem of environmental pollution caused by solid waste, and meets the requirement of building energy conservation.
Description of the embodiments
Embodiment one:
aiming at a formula for producing aerated concrete blocks by cleaning and burning solid waste of inferior lignite in a certain factory in Shipingxian county of Yunnan province, the components comprise: 62.8% of inferior lignite coal ash, 11.53% of quicklime powder, 24.05% of silicate cement, 0.62% of gypsum and 1% of aluminum powder paste. The water addition ratio is 0.7:1. The prepared concrete block is detected by third-party authority Yunnan province building material product quality inspection institute, the average compressive strength is 2.7MPa, the minimum value is 2.5MPa, and the average dry density is 600kg/m 3 Is higher than the standard of A2.5B 05-level autoclaved aerated concrete blocks in autoclaved aerated concrete blocks (GB 11968-2020).
The foregoing is merely exemplary embodiments of the present invention, and the present invention is not limited in any way, and a person having ordinary skill in the art to which the present application pertains may make several simple deductions or substitutions without departing from the spirit of the present application, which should be considered as falling within the scope of the present application.
Claims (2)
1. The formula for producing the aerated concrete block by aiming at the clean combustion solid waste of the inferior lignite is characterized in that the main components and the contents of the inferior lignite fly ash are as follows after the inferior lignite is combusted by a boiler: 40-60% of silicon oxide, 15-40% of aluminum oxide, 10-20% of ferric oxide and 2-10% of calcium oxide.
2. The formula for producing the aerated concrete block by aiming at the poor-quality lignite clean combustion solid waste is characterized by comprising the following components: 55-65% of inferior lignite fly ash, 10-15% of quicklime powder, 15-25% of cement, 2-3% of desulfurized gypsum, 1-3% of aluminum powder paste, and the ratio of water to dry materials is 0.7:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310540077.7A CN116444288A (en) | 2023-05-15 | 2023-05-15 | Formula for producing aerated concrete block by aiming at inferior lignite clean combustion solid waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310540077.7A CN116444288A (en) | 2023-05-15 | 2023-05-15 | Formula for producing aerated concrete block by aiming at inferior lignite clean combustion solid waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116444288A true CN116444288A (en) | 2023-07-18 |
Family
ID=87122083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310540077.7A Pending CN116444288A (en) | 2023-05-15 | 2023-05-15 | Formula for producing aerated concrete block by aiming at inferior lignite clean combustion solid waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116444288A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10115827A1 (en) * | 2001-03-29 | 2002-10-10 | Mac Mix Baustoffe Gmbh & Co Kg | Porous concrete production used in building industry comprises adding flyash produced from coal-fired power stations to mixture of lime, cement, sand, water and propellant until specified sulfate content is reached |
| CN1562851A (en) * | 2004-03-16 | 2005-01-12 | 徐尔昌 | Earth cementation agent in use for roadway construction |
| RU2278093C1 (en) * | 2005-02-10 | 2006-06-20 | Государственное образовательное учреждение высшего профессионального образования "Братский государственный университет" | Raw mixture for production of aerated gas-ash concrete with reduced water content |
| CN1792955A (en) * | 2006-01-05 | 2006-06-28 | 武汉理工大学 | High active concrete admixture |
| CN103304262A (en) * | 2013-06-28 | 2013-09-18 | 宝山钢铁股份有限公司 | Autoclaved fly ash aerated concrete building block containing sintering dry-process desulfurized ash and preparation method of autoclaved fly ash aerated concrete building block |
| CN103396155A (en) * | 2013-07-22 | 2013-11-20 | 太原钢铁(集团)有限公司 | Aerated concrete block and preparation method thereof |
| CN103992131A (en) * | 2014-05-12 | 2014-08-20 | 甘肃建投建材有限公司 | An aerated concrete building block |
| CN104250106A (en) * | 2013-06-28 | 2014-12-31 | 陶安庆 | Autoclaved aerated concrete building block |
| CN106242612A (en) * | 2016-07-27 | 2016-12-21 | 亚太森博（山东）浆纸有限公司 | A kind of air-entrained concrete building block and preparation method thereof |
| CN106316443A (en) * | 2015-06-30 | 2017-01-11 | 上海梅山钢铁股份有限公司 | Fly ash aerated concrete blocks with sinter-dried desulfurization ash and preparation method thereof |
| CN109422514A (en) * | 2017-08-29 | 2019-03-05 | 新特能源股份有限公司 | Air-entrained concrete building block and preparation method thereof |
| CN111268985A (en) * | 2020-01-15 | 2020-06-12 | 浙江富春江环保热电股份有限公司 | Autoclaved aerated concrete block and preparation process thereof |
-
2023
- 2023-05-15 CN CN202310540077.7A patent/CN116444288A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10115827A1 (en) * | 2001-03-29 | 2002-10-10 | Mac Mix Baustoffe Gmbh & Co Kg | Porous concrete production used in building industry comprises adding flyash produced from coal-fired power stations to mixture of lime, cement, sand, water and propellant until specified sulfate content is reached |
| CN1562851A (en) * | 2004-03-16 | 2005-01-12 | 徐尔昌 | Earth cementation agent in use for roadway construction |
| RU2278093C1 (en) * | 2005-02-10 | 2006-06-20 | Государственное образовательное учреждение высшего профессионального образования "Братский государственный университет" | Raw mixture for production of aerated gas-ash concrete with reduced water content |
| CN1792955A (en) * | 2006-01-05 | 2006-06-28 | 武汉理工大学 | High active concrete admixture |
| CN103304262A (en) * | 2013-06-28 | 2013-09-18 | 宝山钢铁股份有限公司 | Autoclaved fly ash aerated concrete building block containing sintering dry-process desulfurized ash and preparation method of autoclaved fly ash aerated concrete building block |
| CN104250106A (en) * | 2013-06-28 | 2014-12-31 | 陶安庆 | Autoclaved aerated concrete building block |
| CN103396155A (en) * | 2013-07-22 | 2013-11-20 | 太原钢铁(集团)有限公司 | Aerated concrete block and preparation method thereof |
| CN103992131A (en) * | 2014-05-12 | 2014-08-20 | 甘肃建投建材有限公司 | An aerated concrete building block |
| CN106316443A (en) * | 2015-06-30 | 2017-01-11 | 上海梅山钢铁股份有限公司 | Fly ash aerated concrete blocks with sinter-dried desulfurization ash and preparation method thereof |
| CN106242612A (en) * | 2016-07-27 | 2016-12-21 | 亚太森博（山东）浆纸有限公司 | A kind of air-entrained concrete building block and preparation method thereof |
| CN109422514A (en) * | 2017-08-29 | 2019-03-05 | 新特能源股份有限公司 | Air-entrained concrete building block and preparation method thereof |
| CN111268985A (en) * | 2020-01-15 | 2020-06-12 | 浙江富春江环保热电股份有限公司 | Autoclaved aerated concrete block and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102643070B (en) | Ceramsite heat-preservation building block using non-calcined desulfurized gypsum as main cementing material and preparation method thereof | |
| CN102584322B (en) | Preparation method for pulverized coal-ash-based porous artificial stone | |
| CN103771780A (en) | Method for preparing building material products through hydration-carbonation coupling technique | |
| CN102674786B (en) | Inorganic heat-insulation building block using non-calcined desulphurization gypsum as main gel material and preparation method of inorganic heat-insulation building block | |
| CN105218057B (en) | A kind of green lightweight aggregate concrete and its preparation technology | |
| KR101388202B1 (en) | Ecofriendly binder and mortar composition for radiant heating floor panel | |
| CN105254278A (en) | Red fly ash sintered brick material | |
| CN113582608A (en) | Low-carbon cement and preparation method thereof | |
| CN1326799C (en) | Masonry cement | |
| CN104291853B (en) | A kind of circulating fluid-bed coal ash ceramic and preparation method thereof | |
| Usman et al. | Influence of groundnut shell ash on the properties of cement pastes | |
| CN105621909B (en) | It is a kind of to mix modified Desulphurization and the cement of rice hull ash again | |
| CN101863068B (en) | Method for producing autoclaved brick by residue of aluminum-extracted pulverized fuel ash | |
| CN102643107A (en) | Calcination-free desulfurized gypsum-based ceramsite concrete perforated brick | |
| CN116444288A (en) | Formula for producing aerated concrete block by aiming at inferior lignite clean combustion solid waste | |
| CN101215113A (en) | Method for producing cement retarder by carbide slag desulfurization | |
| CN113461403A (en) | Pretreated semidry-method sintered desulfurized ash autoclaved aerated concrete and preparation method thereof | |
| CN202081562U (en) | Quartz sand aerated concrete block | |
| Bhatia | Greener concrete using coal industrial waste (fly ash): an efficient, cost effective and eco-friendly construction materials for the future | |
| CN101219866A (en) | One-step desulfurization of breeze furnace and method for producing low heat cement with modified coal slag thereof | |
| CN108191329B (en) | Preparation method of putty containing circulating fluidized bed coal-fired solid sulfur ash and slag for outer wall | |
| CN112194429A (en) | Sulfur-fixing ash dry-mixed mortar and preparation method thereof | |
| CN108439882B (en) | Straw desulfurized gypsum composite wall material and preparation method thereof | |
| CN113501700A (en) | Method for preparing autoclaved building blocks by comprehensively utilizing solid sulfur ash of circulating fluidized bed | |
| CN108821662B (en) | Method for preparing highway subgrade material by using desulfurization ash of circulating fluidized bed boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |