CN113912100A - Resource utilization method of household garbage incineration fly ash - Google Patents
Resource utilization method of household garbage incineration fly ash Download PDFInfo
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- CN113912100A CN113912100A CN202010665803.4A CN202010665803A CN113912100A CN 113912100 A CN113912100 A CN 113912100A CN 202010665803 A CN202010665803 A CN 202010665803A CN 113912100 A CN113912100 A CN 113912100A
- Authority
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- Prior art keywords
- fly ash
- integrated device
- roasting
- solid
- water
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- 239000010881 fly ash Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 18
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000001103 potassium chloride Substances 0.000 claims abstract description 9
- 239000011780 sodium chloride Substances 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims abstract description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 6
- 239000010440 gypsum Substances 0.000 claims abstract description 4
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000000047 product Substances 0.000 claims description 20
- 238000001556 precipitation Methods 0.000 claims description 12
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 11
- 239000007791 liquid phase Substances 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 238000002161 passivation Methods 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 8
- 239000002244 precipitate Substances 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 6
- 239000003245 coal Substances 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 235000011152 sodium sulphate Nutrition 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 239000007790 solid phase Substances 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 238000005469 granulation Methods 0.000 claims description 4
- 230000003179 granulation Effects 0.000 claims description 4
- 239000003595 mist Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000002918 waste heat Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 239000013618 particulate matter Substances 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 2
- 230000008025 crystallization Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- 239000011575 calcium Substances 0.000 abstract description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052791 calcium Inorganic materials 0.000 abstract description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 abstract 2
- 235000011164 potassium chloride Nutrition 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000007832 Na2SO4 Substances 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/04—Chlorides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
-
- 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
- C04B28/001—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 unburned clay
-
- 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
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention introduces a resource utilization method of household garbage incineration fly ash, which comprises the steps of separating soluble salt, converting calcium in the soluble salt into light calcium carbonate or gypsum, and producing potassium chloride and sodium chloride mixed salt in the rest steps; the residue is granulated, dried, roasted and passivated to produce light filler.
Description
Technical Field
The invention relates to a resource utilization method of household garbage incineration fly ash.
Background
The incineration of household garbage (including power generation) is the main development trend of household garbage treatment. In the process of incineration treatment of the household garbage, a large amount of fly ash is inevitably generated. The fly ash contains dioxin and heavy metals, is a dangerous solid waste, and causes serious pollution to the ecological environment if discharged into the environment. The main methods for treating fly ash at present are safe landfill, cement solidification and the like. The former occupies a large amount of land and still has environmental risk factors; in the latter, due to the presence of a large amount of soluble salts, the cured product is unstable and difficult to be effectively utilized, and the storage thereof also has the risk of environmental safety. The existing treatment method basically belongs to harmless treatment. The fly ash contains a large amount of useful substances, is a valuable resource, has great value in developing a fly ash resource utilization method, and is a problem which needs to be solved urgently in China and even in the world at present.
Disclosure of Invention
Aiming at the problems of the fly ash treatment method generated by the current household garbage incineration, the invention aims to find a high-efficiency and economic fly ash resource utilization method, which is characterized in that fly ash and water are continuously fed into an integrated device with the functions of crushing, dissolving, washing and solid-liquid separation, in the device, a solid phase and a liquid phase move in opposite directions, wherein the solid phase is pushed by a screw machine, the liquid phase is pushed by gravity, the adding position of the water is 30-50 cm before the residue discharging position, the integrated device is assisted with an ultrasonic wave reinforced mass transfer process, the ultrasonic wave power supply power of each cubic meter of the effective volume of the integrated device is 1-3 kW, the whole process is carried out at normal temperature for 8-15 min, and the adding mass of the water is 1.5-3.5 times of the mass of the fly ash calculated by dry basis; liquid-phase products separated from a fly ash inlet end of the integrated device through a filter screen are subjected to fine filtration, and fine filter residues and fly ash are added into the integrated device; sending the liquid phase generated by fine filtration into a precipitation reactor for precipitation reaction, adding sodium sulfate or sodium carbonate for precipitation reaction, wherein the precipitation reaction is carried out at normal temperature for 5-15 min, the sodium sulfate is added in a solid (not limited to solid) form under the stirring condition, the adding amount is the theoretical adding amount, the sodium carbonate is added in a mist solution form with the concentration of 250-500 g/L under the stirring condition, the particle size of the mist drops of the sodium carbonate solution is less than 50 microns, and the adding amount of the sodium carbonate is 100.00-100.02% of the theoretical amount; after the precipitation reaction is finished, carrying out solid-liquid separation, carrying out three-stage countercurrent washing on the precipitate generated by separation, wherein the mass of washing water is 1.5-2.0 times of that of the precipitate on a dry basis, returning the washing water to the integrated device, and drying the washed precipitate by adopting the prior art to obtain a gypsum or light calcium carbonate product; the solution generated in the last solid-liquid separation process is subjected to evaporation concentration, crystallization and crystal drying by adopting the prior art to obtain a NaCl and KCl mixed salt product, and the product can be directly sold as a product and can be further separated into NaCl and KCl products; mechanically dehydrating the residue discharged from the fly ash residue discharge port of the integrated device to reduce the water content of the residue to be below 40%, and returning water generated in the dehydration process to the integrated device; mixing and granulating the residues after mechanical dehydration with clay, coal powder and silicon dioxide powder, wherein the granulation ratio is 40-55% of the residues, 15-25% of the clay, 5-10% of the coal powder and 15-25% of the silicon dioxide powder on a dry basis, the diameter of the manufactured particles is 0.5-3.0 mm, the particles are dried by using secondary waste heat after waste heat is used by using flue gas discharged from a furnace generated in the subsequent roasting process through a passivation device, and the water content of the particles is reduced to be below 5%; the dried particles are sent to a roasting furnace for roasting, the roasting temperature is 800-1200 ℃, and the roasting time is 4-10 min; the roasted product enters a passivation device and stays for 40-80 min at 600-800 ℃ to obtain a light filler product, and the passivation device compensates the heat dissipation of the device by using all the roasting smoke; after the flue gas that is discharged from the passivating device is used for aforementioned particulate matter dry, utilize prior art to handle, discharge to reach standard finally, the dust that the flue gas was handled and is collected returns aforementioned integrated device.
The invention aims to realize that after the fly ash and the water enter the integrated device, the fly ash and the water are additionally crushed and stirred under the pushing of a screw machine, so that the soluble salt in the fly ash is subjected to a dissolving reaction, and the process is accelerated by utilizing ultrasonic waves, so that the soluble salt is fully dissolved, and favorable conditions are created for the subsequent residue treatment. In the integrated device, the solid phase and the liquid phase move reversely, so that the water balance of the whole system can be guaranteed, the content of soluble salts in residues can be fully reduced, the salt concentration of the produced solution can be improved, and the energy consumption of subsequent solution treatment can be reduced. The liquid phase produced by the integrated device is subjected to fine filtration, and the aim is to ensure the quality of subsequent products.
Adding sodium sulfate or sodium carbonate into the solution, passing through CaCl2+Na2SO4=CaSO4+2NaCl or CaCl2+Na2CO3 =CaCO3+2NaCl, Ca in solution2+And removing the NaCl and KCl to ensure the quality of the subsequent NaCl and KCl mixed salt.
The residue of integrated device output carries out mechanical dehydration, falls to the residue moisture content below 40%, firstly guarantees that the granulation process can go on smoothly, reduces stoving process and calcination process energy consumption simultaneously, and then guarantees that the calcination process obtains the necessary temperature of thoroughly decomposing powder sintering, heavy metal passivation in dioxin and precursor, the particulate matter. The subsequent passivation process ensures that the powder sintering and heavy metal passivation in the particles are more sufficient and thorough.
Granulation can not only greatly reduce the dust generation amount in the subsequent roasting process, but also fully contact fine particles, and create favorable conditions for sintering, thereby obtaining a high-quality light filler product.
Compared with the prior art, the method has the outstanding advantages that the method can realize the full resource utilization of the fly ash generated by the incineration of the household garbage, produce high-quality light calcium carbonate, gypsum and light filler products, eliminate the harm of the fly ash to the ecological environment and have obvious economic benefit and environmental benefit.
Detailed description of the invention
Example 1: 100kg fly ash (main components: Ca 37.08%, Cl 14.51%, Na 4.17%, K2.60%, O35.53%) is treated by an integrated device (15 min, normal temperature, the added mass of water is 2.5 times of the mass of the fly ash calculated by dry basis, and the ultrasonic input power is 3kW per cubic meter of slurry); subjecting the integrated device to fine filtration, sodium sulfate precipitation (theoretical addition amount, normal temperature, 5 min), washing precipitate and oven drying to obtain Gypsum Fibrosum (CaSO)4.2H2O) 13.7kg, evaporating, concentrating, crystallizing and drying crystals of the solution after calcium removal to obtain 14.2kg of NaCl and KCl mixed salt, filter-pressing and dehydrating the residue produced by the integrated device (the water content of the dehydrated residue is 37.2 percent), and carrying out the processes of proportioning (40 percent of the residue, 25 percent of clay, 10 percent of coal powder and 25 percent of silicon dioxide powder on a dry basis), granulating (0.5-3 mm), drying, roasting (800-1200 ℃, 4 min) and passivating (600-800 ℃, 40 min) on the residue to obtain the lightweight filler (the bulk density is 0.67 t/m)3）160.4kg。
Example 2: 100kg fly ash (main components: Ca 39.64%, Cl 11.85%, Na 4.56%, K2.32%, O38.94%) is treated by an integrated device (8 min, normal temperature, the added mass of water is 1.5 times of the mass of the fly ash calculated by dry basis, and the ultrasonic input power is 1kW per cubic meter of slurry); the method comprises the steps of fine filtering, sodium carbonate precipitation (theoretical addition amount, normal temperature, 15min, sodium carbonate solution concentration of 250 g/L), washing and drying precipitates to obtain 3.63kg of light calcium carbonate, evaporating, concentrating, crystallizing and drying crystals of the solution after calcium removal to obtain 14.9kg of NaCl and KCl mixed salt, centrifugally dewatering the residue (the water content of the residue after dewatering is 34.2%), preparing the residue (55% of residue, 20% of clay, 5% of coal powder and 20% of silicon dioxide powder), granulating (0.5 mm-3 mm), drying, roasting (800-1200 ℃, 10 min) and passivating (600-800 ℃, 80 min) to obtain the light filler (the bulk density is 0.81 t/m)3）123.2kg。
Claims (1)
1. A resource utilization method of household garbage incineration fly ash is characterized in that fly ash and water are continuously fed into an integrated device with functions of crushing, dissolving, washing and solid-liquid separation, in the device, a solid phase and a liquid phase move in opposite directions, wherein the solid phase is pushed by a screw machine, the liquid phase is pushed by gravity, the adding position of the water is 30-50 cm before a residue discharging position, an ultrasonic wave reinforced mass transfer process is assisted by the integrated device, the ultrasonic wave power supply power of the effective volume of each cubic meter of the integrated device is 1-3 kW, the whole process is carried out at normal temperature for 8-15 min, and the adding mass of the water is 1.5-3.5 times of the mass of the fly ash calculated by dry basis; liquid-phase products separated from a fly ash inlet end of the integrated device through a filter screen are subjected to fine filtration, and fine filter residues and fly ash are added into the integrated device; sending the liquid phase generated by fine filtration into a precipitation reactor for precipitation reaction, adding sodium sulfate or sodium carbonate for precipitation reaction, wherein the precipitation reaction is carried out at normal temperature for 5-15 min, the sodium sulfate is added in a solid (not limited to solid) form under the stirring condition, the adding amount is the theoretical adding amount, the sodium carbonate is added in a mist solution form with the concentration of 250-500 g/L under the stirring condition, the particle size of the mist drops of the sodium carbonate solution is less than 50 microns, and the adding amount of the sodium carbonate is 100.00-100.02% of the theoretical amount; after the precipitation reaction is finished, carrying out solid-liquid separation, carrying out three-stage countercurrent washing on the precipitate generated by separation, wherein the mass of washing water is 1.5-2.0 times of that of the precipitate on a dry basis, returning the washing water to the integrated device, and drying the washed precipitate by adopting the prior art to obtain a gypsum or light calcium carbonate product; the solution generated in the last solid-liquid separation process is subjected to evaporation concentration, crystallization and crystal drying by adopting the prior art to obtain a NaCl and KCl mixed salt product, and the product can be directly sold as a product and can be further separated into NaCl and KCl products; mechanically dehydrating the residue discharged from the fly ash residue discharge port of the integrated device to reduce the water content of the residue to be below 40%, and returning water generated in the dehydration process to the integrated device; mixing and granulating the residues after mechanical dehydration with clay, coal powder and silicon dioxide powder, wherein the granulation ratio is 40-55% of the residues, 15-25% of the clay, 5-10% of the coal powder and 15-25% of the silicon dioxide powder on a dry basis, the diameter of the manufactured particles is 0.5-3.0 mm, the particles are dried by using secondary waste heat after waste heat is used by using flue gas discharged from a furnace generated in the subsequent roasting process through a passivation device, and the water content of the particles is reduced to be below 5%; the dried particles are sent to a roasting furnace for roasting, the roasting temperature is 800-1200 ℃, and the roasting time is 4-10 min; the roasted product enters a passivation device and stays for 40-80 min at 600-800 ℃ to obtain a light filler product, and the passivation device compensates the heat dissipation of the device by using all the roasting smoke; after the flue gas that is discharged from the passivating device is used for aforementioned particulate matter dry, utilize prior art to handle, discharge to reach standard finally, the dust that the flue gas was handled and is collected returns aforementioned integrated device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010665803.4A CN113912100A (en) | 2020-07-11 | 2020-07-11 | Resource utilization method of household garbage incineration fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010665803.4A CN113912100A (en) | 2020-07-11 | 2020-07-11 | Resource utilization method of household garbage incineration fly ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113912100A true CN113912100A (en) | 2022-01-11 |
Family
ID=79232446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010665803.4A Withdrawn CN113912100A (en) | 2020-07-11 | 2020-07-11 | Resource utilization method of household garbage incineration fly ash |
Country Status (1)
| Country | Link |
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| CN (1) | CN113912100A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116770440A (en) * | 2023-08-21 | 2023-09-19 | 杭州灰弘环保科技有限公司 | Method for preparing xonotlite whisker by taking household garbage incineration fly ash as raw material |
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| CN109133472A (en) * | 2018-10-08 | 2019-01-04 | 丁仲军 | Garbage flying ash resource utilization treatment process |
| CN109396163A (en) * | 2018-12-18 | 2019-03-01 | 杭州秀澈环保科技有限公司 | A kind of garbage flying ash treatment process improving chloride ion dissolution rate |
| CN110040748A (en) * | 2019-04-11 | 2019-07-23 | 中国中材国际工程股份有限公司 | Utilize the method for incineration of refuse flyash production sylvite and sodium salt |
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2020
- 2020-07-11 CN CN202010665803.4A patent/CN113912100A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104084415A (en) * | 2014-07-02 | 2014-10-08 | 天津壹鸣环境工程有限公司 | Technology for reducing waste incineration fly ash via water logging pretreatment |
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| CN108483958A (en) * | 2018-06-07 | 2018-09-04 | 山东大学 | A kind of resource utilization method of incineration of refuse flyash and Industrial Solid Waste |
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| CN109396163A (en) * | 2018-12-18 | 2019-03-01 | 杭州秀澈环保科技有限公司 | A kind of garbage flying ash treatment process improving chloride ion dissolution rate |
| CN110040748A (en) * | 2019-04-11 | 2019-07-23 | 中国中材国际工程股份有限公司 | Utilize the method for incineration of refuse flyash production sylvite and sodium salt |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116770440A (en) * | 2023-08-21 | 2023-09-19 | 杭州灰弘环保科技有限公司 | Method for preparing xonotlite whisker by taking household garbage incineration fly ash as raw material |
| CN116770440B (en) * | 2023-08-21 | 2023-12-08 | 杭州灰弘环保科技有限公司 | Method for preparing xonotlite whisker by taking household garbage incineration fly ash as raw material |
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