CN114180865B - A method for resource utilization of municipal waste incineration fly ash - Google Patents
A method for resource utilization of municipal waste incineration fly ash Download PDFInfo
- Publication number
- CN114180865B CN114180865B CN202210143655.9A CN202210143655A CN114180865B CN 114180865 B CN114180865 B CN 114180865B CN 202210143655 A CN202210143655 A CN 202210143655A CN 114180865 B CN114180865 B CN 114180865B
- Authority
- CN
- China
- Prior art keywords
- fly ash
- waste incineration
- incineration fly
- solid waste
- synergist
- 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.)
- Active
Links
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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/28—Cements from oil shales, residues or waste other than slag from combustion residues, e.g. ashes or slags from waste incineration
-
- 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
- C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
-
- 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
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
技术领域technical field
本发明属于固体废弃物资源化利用技术领域，尤其涉及一种资源化利用城市垃圾焚烧飞灰的方法。The invention belongs to the technical field of solid waste resource utilization, and in particular relates to a method for resource utilization of urban waste incineration fly ash.
背景技术Background technique
随着城市化进程的不断加速，城市垃圾逐渐成为阻碍城市发展的负担，目前中国城市的垃圾处理方法一般包括卫生填埋、堆肥、焚烧以及其他方式，其中垃圾焚烧虽然可以对垃圾起到较好的减量化效果，但是会形成大量的城市垃圾焚烧飞灰。目前，城市垃圾焚烧飞灰大多经水泥固化后卫生填埋，这不仅会使垃圾焚烧飞灰的容重增加，并且垃圾焚烧飞灰中的重金属、二噁英等物质存在浸出的风险，可能会对填埋场地的周边环境造成二次污染。另外，在利用城市垃圾焚烧飞灰制备建筑材料时，其中含有的大量氯盐、钠盐及钾盐会对产品的性能产生较大影响，所以在对城市垃圾焚烧飞灰进行资源化利用之前，需要对现有的城市垃圾焚烧飞灰进行水洗，使城市垃圾焚烧飞灰中的氯盐、钠盐和钾盐达到应用水平，这不但操作繁琐，效率低下，同时产生污水的二次污染。With the continuous acceleration of urbanization, urban waste has gradually become a burden that hinders urban development. At present, the garbage disposal methods in Chinese cities generally include sanitary landfill, composting, incineration and other methods. Although garbage incineration can play a better role in garbage disposal However, a large amount of municipal waste incineration fly ash will be formed. At present, most of the municipal waste incineration fly ash is solidified with cement and then buried in sanitary landfill, which will not only increase the bulk density of the waste incineration fly ash, but also have the risk of leaching of heavy metals, dioxins and other substances in the waste incineration fly ash, which may cause damage to the waste incineration fly ash. The surrounding environment of the landfill site causes secondary pollution. In addition, when using municipal waste incineration fly ash to prepare building materials, a large amount of chloride salts, sodium salts and potassium salts contained in it will have a greater impact on the performance of the product. Therefore, before the municipal waste incineration fly ash is recycled, It is necessary to wash the existing municipal waste incineration fly ash to make the chloride salt, sodium salt and potassium salt in the municipal waste incineration fly ash reach the applicable level, which is not only complicated and inefficient, but also produces secondary pollution of sewage.
赤泥是制铝工业提取氧化铝时排出的工业固体废弃物。由于赤泥结合的化学碱难以脱除且含量大，又含有氟、铝及其他多种杂质，对于赤泥的无害化利用一直以来难以进行，中国作为铝生产大国，每年排放的赤泥高达数百万吨，其合理处置与综合利用是个难题。Red mud is an industrial solid waste discharged from the aluminum industry during the extraction of alumina. Because the chemical alkali combined with red mud is difficult to remove and the content is large, and it also contains fluorine, aluminum and other impurities, the harmless utilization of red mud has always been difficult to carry out. China, as a large aluminum producing country, discharges up to The reasonable disposal and comprehensive utilization of millions of tons is a difficult problem.
发明内容SUMMARY OF THE INVENTION
针对上述问题，本发明提供了一种资源化利用城市垃圾焚烧飞灰的方法，技术方案是：以城市垃圾焚烧飞灰、赤泥、偏高岭土、粉煤灰为主要原料，科学调配硅、铝、钙、钠、钾、氯等活性组分元素，经低温煅烧制备固废基胶凝材料增效剂，并使二噁英完全分解。In view of the above problems, the present invention provides a method for recycling urban waste incineration fly ash. , calcium, sodium, potassium, chlorine and other active components, through low-temperature calcination to prepare solid waste-based cementitious material synergists, and to completely decompose dioxins.
一种资源化利用城市垃圾焚烧飞灰的方法，具体方法为：将城市垃圾焚烧飞灰、偏高岭土、赤泥和粉煤灰制成生料球；生料球在850℃~1000℃煅烧1h~7h后取出，快速冷却，然后粉磨制成固废基胶凝材料增效剂。A method for recycling urban waste incineration fly ash, the specific method is as follows: the urban waste incineration fly ash, metakaolin, red mud and fly ash are made into raw pellets; Take it out after ~7h, cool it quickly, and then grind it into a synergist for solid waste-based cementitious materials.
所述生料球按重量计的物料配比为：城市垃圾焚烧飞灰30%~65%、偏高岭土1%~30%、赤泥10%~50%、粉煤灰1%~30%。The material ratio of the raw pellets by weight is: municipal waste incineration fly ash 30%-65%, metakaolin 1%-30%, red mud 10%-50%, fly ash 1%-30%.
进一步的，所述生料球的物料碱度系数Cm为0.89~1.06。Further, the material alkalinity coefficient Cm of the raw meal balls is 0.89 to 1.06.
进一步的，所述城市垃圾焚烧飞灰为城市生活垃圾在焚烧处理过程中经烟气除尘收集得到的飞灰，其主要成分组成为：CaO 16%~42%、SiO2 5%~13%、Al2O3 1%~7%、Fe2O3 1%~5%、MgO 3%~11%、Cl- 5%~17%、Na2O 0.5%~8%、K2O 1%~7%、SO3 5%~8%。Further, the urban waste incineration fly ash is the fly ash collected by the flue gas dust removal during the incineration process of the municipal solid waste, and its main components are composed of: CaO 16%-42%, SiO 2 5%-13%, Al 2 O 3 1%~7%, Fe 2 O 3 1%~5%, MgO 3%~11%, Cl - 5%~17%, Na 2 O 0.5%~8%, K 2 O 1%~ 7%, SO 3 5%~8%.
进一步的，所述城市垃圾焚烧飞灰、偏高岭土、赤泥和粉煤灰的物料颗粒粒径低于0.3mm。Further, the material particle size of the urban waste incineration fly ash, metakaolin, red mud and fly ash is less than 0.3 mm.
进一步的，所述固废基胶凝材料增效剂的主要组成为：CaO 40%~51%、SiO2 12%~17%、Al2O3 7%~13%、Fe2O3 6%~13%、MgO 3%~9%、Cl- 4%~9%、Na2O 2%~5%、K2O 1%~3%、SO3 5%~8%。Further, the main components of the solid waste-based cementitious material synergist are: CaO 40%-51%, SiO 2 12%-17%, Al 2 O 3 7%-13%, Fe 2 O 3 6% ~13%, MgO 3%~9%, Cl- 4%~9%, Na2O 2 %~5%, K2O 1 %~ 3 %, SO3 5%~8%.
进一步的，所述固废基胶凝材料增效剂粉磨至0.08mm方孔筛筛余小于10%的粉状。Further, the solid waste-based cementitious material synergist is ground into a powder with a sieve residue of less than 10% of a 0.08 mm square-hole sieve.
上述物料组成和成分组成均为重量百分比。The above-mentioned material composition and component composition are all weight percentages.
本发明的积极有益效果：本发明利用城市垃圾焚烧飞灰、偏高岭土、赤泥和粉煤灰的混合生料经煅烧制得固废基胶凝材料增效剂，科学调控矿物氯铝酸钙、硅酸二钙、铁酸钙等活性矿物以及氯、钠、钾等元素组成，磨细后掺入固废基胶凝材料能够对后者的水化过程起到良好的诱导和化学协同激发作用，有助于改善固废基胶凝材料的水化性能，优化水化产物，生成更多更复杂的的含氯、硫、铁的低溶度积复盐，提高固废基胶凝材料的早后期强度和固化重金属离子性能。同时，在煅烧过程中将城市垃圾焚烧飞灰中的二噁英分解，重金属离子固化/稳定化在固废基胶凝材料矿物中，实现了飞灰的安全利用，对于推进城市垃圾焚烧飞灰、赤泥的处理和固废基胶凝材料的提值质利用，助力碳达峰与碳中和具有重要意义。Positive and beneficial effects of the present invention: the present invention utilizes the mixed raw materials of municipal waste incineration fly ash, metakaolin, red mud and fly ash to obtain a solid waste-based cementitious material synergist through calcination, and scientifically regulates the mineral calcium chloroaluminate. It is composed of active minerals such as dicalcium silicate and calcium ferrite, as well as elements such as chlorine, sodium, and potassium. The incorporation of solid waste-based cementitious materials after grinding can induce good induction and chemical synergistic excitation of the latter's hydration process. It can help improve the hydration performance of solid waste-based cementitious materials, optimize hydration products, and generate more and more complex low-solubility complex salts containing chlorine, sulfur and iron, and improve solid waste-based cementitious materials. The early and late strength and cured heavy metal ion properties. At the same time, during the calcination process, the dioxins in the municipal waste incineration fly ash are decomposed, and the heavy metal ions are solidified/stabilized in the solid waste-based cementitious material minerals, so as to realize the safe utilization of the fly ash, which is very important for the promotion of the municipal waste incineration fly ash. , The treatment of red mud and the utilization of solid waste-based cementitious materials are of great significance to help carbon peaking and carbon neutralization.
具体实施方式Detailed ways
下面通过具体事例对本发明的制备方法进行说明，但本发明并不局限于此。下述实施例找那个所述试验方法，如无特殊说明，均为常规方法；所述物料，如无特殊说明，均可以从商业途径获得。The preparation method of the present invention will be described below by way of specific examples, but the present invention is not limited thereto. The following examples find the test method, unless otherwise specified, are conventional methods; the materials, unless otherwise specified, can be obtained from commercial channels.
对照例1（固废基胶凝材料，未掺增效剂）Comparative Example 1 (solid waste-based cementitious material, no synergist)
固废基胶凝材料由30%的钢渣、60%的矿渣和10%的烟气脱硫石膏制成，加0.36倍的水制成净浆试件，标养至龄期后进行强度测试。The solid waste-based cementitious material is made of 30% steel slag, 60% slag and 10% flue gas desulfurization gypsum, and 0.36 times of water is added to make a pure slurry test piece.
对照例2（42.5#的普通硅酸盐水泥）Comparative Example 2 (42.5# Ordinary Portland Cement)
42.5#的普通硅酸盐水泥，加0.36倍的水制成净浆试件，标养至龄期后进行强度测试。42.5# ordinary Portland cement, add 0.36 times of water to make a pure slurry test piece, and test the strength after standardizing to the age.
实施例1Example 1
将41.7%的城市垃圾焚烧飞灰、2.6%的偏高岭土、47.4%的赤泥和8.3%的粉煤灰配成生料球；置于箱式电阻炉内，在950℃下煅烧300min；煅烧结束后快速风冷，然后粉磨制成0.08mm方孔筛筛余小于10%的粉状固废基胶凝材料增效剂。41.7% of municipal waste incineration fly ash, 2.6% of metakaolin, 47.4% of red mud and 8.3% of fly ash were prepared into raw pellets; placed in a box-type resistance furnace, calcined at 950 °C for 300 min; calcined After the end, it is quickly air-cooled, and then ground into a powdery solid waste-based cementitious material synergist with a 0.08mm square-hole sieve remaining less than 10%.
固废基胶凝材料配比为：27%的钢渣、54%的矿渣、9%的烟气脱硫石膏和10%的固废基胶凝材料增效剂，加0.36倍的水制成净浆试件，标养至龄期后进行强度测试。The ratio of solid waste-based cementitious material is: 27% steel slag, 54% slag, 9% flue gas desulfurization gypsum and 10% solid waste-based cementitious material synergist, plus 0.36 times of water to make a pure slurry The specimens were marked to age and tested for strength.
实施例2Example 2
将41.7%城市垃圾焚烧飞灰，2.6%偏高岭土，47.4%赤泥和8.3%粉煤灰配成生料球；置于箱式电阻炉内，在950℃下煅烧60min；煅烧结束后快速风冷，然后粉磨制成0.08mm方孔筛筛余小于10%的粉状固废基胶凝材料增效剂。41.7% municipal waste incineration fly ash, 2.6% metakaolin, 47.4% red mud and 8.3% fly ash were prepared into raw pellets; placed in a box-type resistance furnace, calcined at 950 °C for 60 min; Cold, and then pulverized into a powdery solid waste-based cementitious material synergist with a sieve residue of 0.08mm square-hole sieve less than 10%.
固废基胶凝材料配比为：27%的钢渣、54%的矿渣、9%的烟气脱硫石膏和10%的固废基胶凝材料增效剂，加0.36倍的水制成净浆试件，标养至龄期后进行强度测试。The ratio of solid waste-based cementitious material is: 27% steel slag, 54% slag, 9% flue gas desulfurization gypsum and 10% solid waste-based cementitious material synergist, plus 0.36 times of water to make a pure slurry The specimens were marked to age and tested for strength.
实施例3Example 3
将41.7%城市垃圾焚烧飞灰，2.6%偏高岭土，47.4%赤泥和8.3%粉煤灰配成生料球；置于箱式电阻炉内，在950℃下煅烧180min；煅烧结束后快速风冷，然后粉磨制成0.08mm方孔筛筛余小于10%的粉状固废基胶凝材料增效剂。41.7% municipal waste incineration fly ash, 2.6% metakaolin, 47.4% red mud and 8.3% fly ash were prepared into raw pellets; placed in a box-type resistance furnace, calcined at 950 °C for 180 min; Cold, and then pulverized into a powdery solid waste-based cementitious material synergist with a sieve residue of 0.08mm square-hole sieve less than 10%.
固废基胶凝材料配比为：27%的钢渣、54%的矿渣、9%的烟气脱硫石膏和10%的固废基胶凝材料增效剂，加0.36倍的水制成净浆试件，标养至龄期后进行强度测试。The ratio of solid waste-based cementitious material is: 27% steel slag, 54% slag, 9% flue gas desulfurization gypsum and 10% solid waste-based cementitious material synergist, plus 0.36 times of water to make a pure slurry The specimens were marked to age and tested for strength.
实施例4Example 4
将63.3%城市垃圾焚烧飞灰，18.9%偏高岭土，16.3%赤泥和1.5%粉煤灰配成生料球；置于箱式电阻炉内，在850℃下煅烧420min；煅烧结束后快速风冷，然后粉磨制成0.08mm方孔筛筛余小于10%的粉状固废基胶凝材料增效剂。63.3% municipal waste incineration fly ash, 18.9% metakaolin, 16.3% red mud and 1.5% fly ash were prepared into raw pellets; placed in a box-type resistance furnace, calcined at 850 °C for 420 min; Cold, and then pulverized into a powdery solid waste-based cementitious material synergist with a sieve residue of 0.08mm square-hole sieve less than 10%.
固废基胶凝材料配比为：27%的钢渣、54%的矿渣、9%的烟气脱硫石膏和10%的固废基胶凝材料增效剂，加0.36倍的水制成净浆试件，标养至龄期后进行强度测试。The ratio of solid waste-based cementitious material is: 27% steel slag, 54% slag, 9% flue gas desulfurization gypsum and 10% solid waste-based cementitious material synergist, plus 0.36 times of water to make a pure slurry The specimens were marked to age and tested for strength.
实施例5Example 5
将30.5%城市垃圾焚烧飞灰，27.2%偏高岭土，14.9%赤泥和27.4%粉煤灰配成生料球；置于箱式电阻炉内，在900℃下煅烧300min；煅烧结束后快速风冷，然后粉磨制成0.08mm方孔筛筛余小于10%的粉状固废基胶凝材料增效剂。30.5% municipal waste incineration fly ash, 27.2% metakaolin, 14.9% red mud and 27.4% fly ash were prepared into raw pellets; placed in a box-type resistance furnace, calcined at 900 °C for 300 min; Cold, and then pulverized into a powdery solid waste-based cementitious material synergist with a sieve residue of 0.08mm square-hole sieve less than 10%.
固废基胶凝材料配比为：27%的钢渣、54%的矿渣、9%的烟气脱硫石膏和10%的固废基胶凝材料增效剂，加0.36倍的水制成净浆试件，标养至龄期后进行强度测试。The ratio of solid waste-based cementitious material is: 27% steel slag, 54% slag, 9% flue gas desulfurization gypsum and 10% solid waste-based cementitious material synergist, plus 0.36 times of water to make a pure slurry The specimens were marked to age and tested for strength.
实施例6Example 6
将41.7%城市垃圾焚烧飞灰，2.6%偏高岭土，47.4%赤泥和8.3%粉煤灰配成生料球；置于箱式电阻炉内，在850℃下煅烧360min；煅烧结束后快速风冷，然后粉磨制成0.08mm方孔筛筛余小于10%的粉状固废基胶凝材料增效剂。41.7% municipal waste incineration fly ash, 2.6% metakaolin, 47.4% red mud and 8.3% fly ash were prepared into raw pellets; placed in a box-type resistance furnace, calcined at 850 ° C for 360 min; Cold, and then pulverized into a powdery solid waste-based cementitious material synergist with a sieve residue of 0.08mm square-hole sieve less than 10%.
固废基胶凝材料配比为：27%的钢渣、54%的矿渣、9%的烟气脱硫石膏和10%的固废基胶凝材料增效剂，加0.36倍的水制成净浆试件，标养至龄期后进行强度测试。The ratio of solid waste-based cementitious material is: 27% steel slag, 54% slag, 9% flue gas desulfurization gypsum and 10% solid waste-based cementitious material synergist, plus 0.36 times of water to make a pure slurry The specimens were marked to age and tested for strength.
实施例7Example 7
将41.7%城市垃圾焚烧飞灰，2.6%偏高岭土，37.4%赤泥和18.3%粉煤灰配成生料球；置于箱式电阻炉内，在1000℃下煅烧300min；煅烧结束后快速风冷，然后粉磨制成0.08mm方孔筛筛余小于10%的粉状固废基胶凝材料增效剂。41.7% municipal waste incineration fly ash, 2.6% metakaolin, 37.4% red mud and 18.3% fly ash were prepared into raw pellets; placed in a box-type resistance furnace, calcined at 1000 ° C for 300 min; Cold, and then pulverized into a powdery solid waste-based cementitious material synergist with a sieve residue of 0.08mm square-hole sieve less than 10%.
固废基胶凝材料配比为：27%的钢渣、54%的矿渣、9%的烟气脱硫石膏和10%的固废基胶凝材料增效剂，加0.36倍的水制成净浆试件，标养至龄期后进行强度测试。The ratio of solid waste-based cementitious material is: 27% steel slag, 54% slag, 9% flue gas desulfurization gypsum and 10% solid waste-based cementitious material synergist, plus 0.36 times of water to make a pure slurry The specimens were marked to age and tested for strength.
表1 固废基胶凝材料净浆抗压强度测试结果Table 1 Test results of compressive strength of solid waste-based cementitious material paste
以上实施例说明本发明的实质性内容，但并不以此限定本发明的保护范围。本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的实质和保护范围。The above embodiments illustrate the essential content of the present invention, but do not limit the protection scope of the present invention. Those skilled in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and protection scope of the technical solutions of the present invention.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210143655.9A CN114180865B (en) | 2022-02-17 | 2022-02-17 | A method for resource utilization of municipal waste incineration fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210143655.9A CN114180865B (en) | 2022-02-17 | 2022-02-17 | A method for resource utilization of municipal waste incineration fly ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114180865A CN114180865A (en) | 2022-03-15 |
| CN114180865B true CN114180865B (en) | 2022-04-29 |
Family
ID=80546076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210143655.9A Active CN114180865B (en) | 2022-02-17 | 2022-02-17 | A method for resource utilization of municipal waste incineration fly ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114180865B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114712767B (en) * | 2022-04-24 | 2023-02-14 | 长江水利委员会长江科学院 | Method for fixing chlorine and stabilizing heavy metal in fly ash |
| CN116947342B (en) * | 2023-09-18 | 2024-02-23 | 常熟理工学院 | A method and product for preparing cement using salt lake lithium-magnesium slag and waste incineration fly ash |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9802865B1 (en) * | 2016-09-13 | 2017-10-31 | Nano And Advanced Materials Institute Limited | Nano-modified alkali-activated cementitious materials for rapid repair |
| CN107382239A (en) * | 2017-07-18 | 2017-11-24 | 北京科技大学 | For stablizing full solid waste casting resin and the preparation method of Han bioxin flying ash |
| CN110818294A (en) * | 2019-10-28 | 2020-02-21 | 北京科技大学 | Cementitious material containing waste incineration fly ash and steel slag slag and preparation method and application |
| CN110818293A (en) * | 2019-10-28 | 2020-02-21 | 北京科技大学 | Cementing material containing a large amount of waste incineration fly ash and slag, and preparation method and application thereof |
| CN112608088A (en) * | 2020-12-31 | 2021-04-06 | 同济大学 | Geopolymer grouting material based on incineration fly ash and preparation method thereof |
| CN113105172A (en) * | 2021-04-19 | 2021-07-13 | 燕山大学 | Heavy metal curing non-burning bricks using industrial solid waste and domestic waste fly ash |
| CN113264715A (en) * | 2021-05-24 | 2021-08-17 | 燕山大学 | Heavy metal curing baking-free brick based on household garbage incineration fly ash and preparation method thereof |
-
2022
- 2022-02-17 CN CN202210143655.9A patent/CN114180865B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9802865B1 (en) * | 2016-09-13 | 2017-10-31 | Nano And Advanced Materials Institute Limited | Nano-modified alkali-activated cementitious materials for rapid repair |
| CN107382239A (en) * | 2017-07-18 | 2017-11-24 | 北京科技大学 | For stablizing full solid waste casting resin and the preparation method of Han bioxin flying ash |
| CN110818294A (en) * | 2019-10-28 | 2020-02-21 | 北京科技大学 | Cementitious material containing waste incineration fly ash and steel slag slag and preparation method and application |
| CN110818293A (en) * | 2019-10-28 | 2020-02-21 | 北京科技大学 | Cementing material containing a large amount of waste incineration fly ash and slag, and preparation method and application thereof |
| CN112608088A (en) * | 2020-12-31 | 2021-04-06 | 同济大学 | Geopolymer grouting material based on incineration fly ash and preparation method thereof |
| CN113105172A (en) * | 2021-04-19 | 2021-07-13 | 燕山大学 | Heavy metal curing non-burning bricks using industrial solid waste and domestic waste fly ash |
| CN113264715A (en) * | 2021-05-24 | 2021-08-17 | 燕山大学 | Heavy metal curing baking-free brick based on household garbage incineration fly ash and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114180865A (en) | 2022-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110723975B (en) | A kind of co-disposal method of hazardous waste incineration residue and solid waste, ceramsite and application thereof | |
| CN109265029B (en) | Method for preparing alloy iron and cement material | |
| Abdel-Gawwad et al. | A clean approach through sustainable utilization of cement kiln dust, hazardous lead-bearing, and sewage sludges in the production of lightweight bricks | |
| CN104193202B (en) | A kind of high-moisture-retention cement | |
| CN110818294A (en) | Cementitious material containing waste incineration fly ash and steel slag slag and preparation method and application | |
| CN111704406A (en) | Application of domestic waste incineration fly ash composite admixture in cement stabilized crushed stone mixture | |
| CN114180865B (en) | A method for resource utilization of municipal waste incineration fly ash | |
| CN110106312A (en) | A kind of technique using electrolytic aluminium carbon slag production LF slagging agent | |
| CN105502974B (en) | A kind of processing of nickel minerals metallurgical slag and Application way | |
| KR102665262B1 (en) | Solidifying Agent Composition for Soft Ground Containing Polysilicon Sludge and Iron Dust and Construction Method Using Thereof | |
| CN115215564B (en) | Method for carbonizing and curing heavy metal in red mud by wet method and application | |
| AU2021106088A4 (en) | Preparation Method and Application of Low-Cost Clinker-free Cementitious backfill Materials | |
| CN113173718B (en) | Waste incineration fly ash curing agent, preparation method and treatment method | |
| CN116444239A (en) | Magnesium-coal slag-based new paving and mine filling material and preparation method thereof | |
| CN110776298A (en) | Cementitious material containing waste incineration fly ash and slag cement, preparation method and application | |
| Ma et al. | Properties of composite sintered modified fluidized bed incineration fly ash as cement admixture | |
| CN114315182B (en) | Method for harmless pretreatment and synchronous activation of aluminum ash | |
| AU2020104368A4 (en) | Cement Filling Material for Co-solidifying Antimony and Preparation Method Thereof | |
| Tang et al. | Feasibility of upcycling red mud for low-CO2 cement via calcination: A comparative study with FA and GGBFS based in China | |
| CN116655266B (en) | Low-cost clinker-free cementing material and application thereof | |
| JP2025129124A (en) | Manufacturing method of general-purpose cement by chlorination roasting of aluminosilicate | |
| CN110240438B (en) | Cement-based material compaction reinforcing agent and preparation method thereof | |
| CN102923978A (en) | Method for preparing sulphoaluminate cement raw material by using incineration fly ash and formula of sulphoaluminate cement | |
| KR100732606B1 (en) | Manufacturing method of cement stimulator using sintered desulfurization dust and cement containing it | |
| JP2018158876A (en) | Coal ash cured product |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |