CN112266229A - High-strength ceramsite prepared from industrial wastes and preparation method thereof - Google Patents
High-strength ceramsite prepared from industrial wastes and preparation method thereof Download PDFInfo
- Publication number
- CN112266229A CN112266229A CN202011141041.4A CN202011141041A CN112266229A CN 112266229 A CN112266229 A CN 112266229A CN 202011141041 A CN202011141041 A CN 202011141041A CN 112266229 A CN112266229 A CN 112266229A
- Authority
- CN
- China
- Prior art keywords
- ceramsite
- mass
- waste salt
- parts
- content
- 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
- 239000002440 industrial waste Substances 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title description 6
- 150000003839 salts Chemical class 0.000 claims abstract description 93
- 239000002699 waste material Substances 0.000 claims abstract description 80
- 239000002893 slag Substances 0.000 claims abstract description 54
- 239000010802 sludge Substances 0.000 claims abstract description 47
- 239000010881 fly ash Substances 0.000 claims abstract description 34
- 239000002994 raw material Substances 0.000 claims abstract description 34
- 239000002689 soil Substances 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000004381 surface treatment Methods 0.000 claims abstract description 27
- 238000005245 sintering Methods 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 21
- 230000032683 aging Effects 0.000 claims abstract description 16
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 15
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims description 40
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 13
- 239000011780 sodium chloride Substances 0.000 claims description 13
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 12
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 12
- 235000011152 sodium sulphate Nutrition 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 7
- 229910001415 sodium ion Inorganic materials 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- 239000002910 solid waste Substances 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 12
- 239000004567 concrete Substances 0.000 description 8
- 239000013078 crystal Substances 0.000 description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 230000009172 bursting Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 230000003487 anti-permeability effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000005067 remediation Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000003679 aging effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/027—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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1325—Hazardous waste other than combustion residues
- C04B33/1327—Hazardous waste other than combustion residues containing heavy metals
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1328—Waste materials; Refuse; Residues without additional 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/135—Combustion residues, e.g. fly ash, incineration waste
- C04B33/1352—Fuel ashes, e.g. fly ash
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
- C04B2235/9692—Acid, alkali or halogen resistance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a high-strength ceramsite prepared by using industrial wastes, and also relates to a method for preparing the high-strength ceramsite, which is characterized by comprising the following steps of: the ceramsite adopts the following raw materials: the ceramsite is prepared by mixing 30-50 parts by mass of polluted soil, 30-45 parts by mass of waste salt mixed slag, 10-20 parts by mass of fly ash of a power plant, 15-25 parts by mass of surface treatment sludge, 3-10 parts by mass of sodium silicate and 5-10 parts by mass of putty powder, granulating, aging and sintering at high temperature. The invention has the advantages that: the method can solve the problem of treatment of various solid wastes, realizes recycling of resources, has high strength of the prepared ceramsite which can reach more than 16MPa, is uniform and compact in material, is not easy to corrode by acid and alkali, and has the characteristics of compression resistance, alkali resistance, acid resistance and the like.
Description
Technical Field
The invention relates to a high-strength ceramsite prepared from industrial wastes and a method for preparing the high-strength ceramsite.
Background
The solid waste recycling treatment is a treatment technology which is relatively widely applied, the solid waste often contains a plurality of components which can be recycled for the second time, and the solid waste can be recycled, so that the pollution of the solid waste to the ecological environment can be reduced, and the solid waste can be converted into actual economic benefit.
The existing method for preparing ceramsite by recycling solid waste generally utilizes single fly ash or single sodium chloride waste salt, or is obtained by adding a small amount of clay, coal gangue and fly ash and mixing and sintering, can change waste into valuable, and provides a more economic method for treating and applying dangerous waste. However, the types of solid wastes treated by the method are single, the strength of the ceramsite is low, and certain application limitations still exist. Through retrieval, no report of preparing the high-strength ceramsite by simultaneously utilizing the fly ash, the waste salt of sodium chloride, the waste salt of sodium sulfate and various miscellaneous salts is found.
Disclosure of Invention
The invention aims to provide a high-strength ceramsite prepared by utilizing various industrial wastes and a method for preparing the high-strength ceramsite.
In order to solve the technical problems, the technical scheme of the invention is as follows: the high-strength ceramsite prepared from industrial wastes is characterized by adopting the following raw materials:
30-50 parts by mass of polluted soil, namely SiO in the polluted soil2The content of (A) is 65-72 wt%, and Al2O310-15 wt% of Fe2O3The content of (A) is more than 3 wt%;
30-45 parts by mass of waste salt mixed slag, wherein the content of sodium ions in the waste salt mixed slag is 12-20 wt%, the content of chloride ions is 35-55 wt%, and the content of sulfate ions is 5-15 wt%;
fly ash of a power plant: 10-20 parts by mass;
metal surface treatment sludge: 15-25 parts by mass, and the water content is 30-80 wt%;
sodium silicate: 3-10 parts by mass, the particle size is 500-800 meshes;
putty powder: 5-10 parts by mass, the particle size is 500-800 meshes;
the ceramsite is prepared by mixing raw materials in proportion, granulating, aging and sintering at high temperature.
Also provides a method for preparing high-strength ceramsite by using various industrial wastes, which comprises the following steps:
s1: preparing raw materials, wherein the waste salt mixed slag is obtained by premixing sodium chloride waste salt and sodium sulfate waste salt, and the content of sodium ions, chloride ions and sulfate ions in the waste salt mixed slag is controlled to be 12-20 wt%, 35-55 wt% and 5-15 wt%;
s2: fully stirring and mixing the polluted soil, the waste salt mixed slag, the fly ash of the power plant, the surface treatment sludge, the sodium silicate and the putty powder;
s3: then granulating, and controlling the particle size to be between 5 and 20 mm;
s4: aging at 30-50 deg.C for 2-4 days to obtain ceramsite raw material;
s5: high-temperature sintering, and sintering in a rotary kiln at 1000-1250 ℃ for 45-120 minutes to obtain the high-strength ceramic particles.
Preferably, before the step S2, the waste salt mixed slag is pretreated, and the waste salt mixed slag is ground into salt slurry with a particle size of more than 500 meshes by using a wet grinder, wherein the water content of the salt slurry is 20-50 wt%.
Preferably, in step S2, the adding sequence is: surface treatment sludge, silicate, waste salt mixed slag, polluted soil, fly ash of a power plant and putty powder.
Preferably, in step S4, the relative humidity during aging is maintained at 60% rh to 70% rh.
Preferably, the metal surface treatment sludge is iron-containing sludge or aluminum-containing sludge, the aluminum-containing sludge contains 18-60 wt% of aluminum oxide, the iron-containing sludge contains 20-50 wt% of ferric oxide, and the pH value of the iron-containing sludge is not lower than 6 and not higher than 9.
The invention has the advantages that: meanwhile, fly ash, sodium chloride waste salt, sodium sulfate waste salt, various power plant fly ash, sludge and other industrial wastes are utilized to prepare the ceramsite. The heavy metals in the waste are solidified by the structural form change and the crystal phase reaction mechanism in the sintering process, one of the crystallization chemical characteristics in the ceramsite structure is that the ceramsite structure has the capability of distributing various impurity ions in crystal lattices, and the impurity ions replace main structural elements in a homogeneous isomorphous mode. The special structure of the crystals and the substitution behavior of impurity ions provide a foundation for solidifying heavy metal elements on the material structure by utilizing the ceramsite, and after the heavy metal is fixed in the ceramsite crystal lattice, the heavy metal exists in a form which is not a simple compound, but is distributed among main metal elements such as Ca, Al and Si of the clinker mineral phase crystal lattice, namely, the positions of the elements are substituted at a certain position in the crystal lattice. At the moment, if the heavy metal is to be removed from the system again, the heavy metal can be generated only under the condition that the mineral phase is damaged again, namely high temperature, acid-base corrosion and the like, the existing form of the mineral phase in the ceramsite is quite stable, and the heavy metal is in solid solution, so that the safety is ensured.
The ceramsite preparation method can solve the treatment problem of various solid wastes, realizes the recycling of resources, has the characteristics of high strength (up to more than 16 MPa), uniform and compact material, difficult acid-base corrosion, compression resistance, alkali resistance, acid resistance and the like, and can be used as a filter water seepage-guiding substitute material for tailings, a cofferdam building material for cofferdam hydraulic fill engineering, a foundation filling material for sponge city construction, a cement mixing plant substitute stone and the like.
The superfine grinding pretreatment is carried out on the waste salt, so that the uniform structure of the ceramsite can be ensured, the cracking or the local collapse in the sintering process can be avoided, and the appearance formability of the ceramsite is improved.
Detailed Description
In the invention, the high-strength ceramsite prepared by using industrial wastes is prepared from the following raw materials:
30-50 parts by mass of polluted soil, namely SiO in the polluted soil2The content of (A) is 65-72 wt%, and Al2O310-15 wt% of Fe2O3The content of (A) is more than 3 wt%;
30-45 parts by mass of waste salt mixed slag, wherein the content of sodium ions in the waste salt mixed slag is 12-20 wt%, the content of chloride ions is 35-55 wt%, and the content of sulfate ions is 5-15 wt%;
fly ash of a power plant: 10-20 parts by mass;
metal surface treatment sludge: 15-25 parts by mass, and the water content is 30-80 wt%; the sludge for metal surface treatment is iron-containing sludge or aluminum-containing sludge, the content of aluminum oxide in the aluminum-containing sludge is 18-60 wt%, the content of ferric oxide in the iron-containing sludge is 20-50%, and the pH of the sludge cannot be lower than 6 and cannot be higher than 9.
Sodium silicate: 1-10 parts by mass, the particle size is 500-800 meshes;
putty powder: 1-10 parts by mass, the particle size is 500-800 meshes;
the ceramsite is mainly prepared by mixing raw materials in proportion, granulating, aging and finally sintering at high temperature, and the specific method comprises the following steps:
s1: preparing raw materials according to the mixture ratio of the raw materials;
the waste salt mixed slag is obtained by premixing sodium chloride waste salt and sodium sulfate waste salt, and the content of sodium ions, chloride ions and sulfate ions in the waste salt mixed slag is controlled to be 12-20 wt%, 35-55 wt% and 5-15 wt%; in addition, in order to ensure the uniform structure of the ceramsite, avoid bursting or local collapse in the sintering process and improve the appearance formability of the ceramsite, the waste salt mixed slag needs to be pretreated, a wet grinder is used for grinding the waste salt mixed slag into salt slurry with the particle size of more than 500 meshes, and the water content of the salt slurry is controlled to be 20-50 wt%.
S2: fully stirring and mixing the polluted soil, the waste salt mixed slag, the fly ash of the power plant, the surface treatment sludge, the sodium silicate and the putty powder; the specific adding sequence is as follows: surface treatment sludge, silicate, waste salt mixed slag, polluted soil, fly ash of a power plant and putty powder.
S3: then granulating, and controlling the particle size to be between 5 and 20 mm;
s4: aging at 30-50 deg.C for 2-4 days to obtain ceramsite raw material;
as the relative humidity of the ceramsite raw material after being put in storage is kept between 60 percent rh and 70 percent rh at the temperature of between 30 and 50 ℃. The raw material is continuously loosened and thinned, the purposes of increasing the specific surface area of the raw material and enhancing the water film adsorption capacity are achieved, the particles in the raw material can be in a sheet shape or a tubular shape to the maximum extent, the aging time is controlled to be 2-4 days, the internal structure is changed, the bonding performance is improved, the particles after extrusion granulation are more tightly bonded, and the purpose of improving the plasticity is achieved.
S5: high-temperature sintering, and sintering in a rotary kiln at 1000-1250 ℃ for 45-120 minutes to obtain the high-strength ceramic particles.
Example one
The raw materials in this example are as follows:
30 parts of polluted soil, in the embodiment, the polluted soil generated in a certain soil remediation process is adopted as one of raw materials, the sample number is 1111-1#, and the specific technical parameters are as follows:
40 parts by mass of waste salt mixed slag, in the embodiment, the concrete technical parameters of heavy metals in the industrial waste salt mixed slag obtained by proportioning the sodium chloride waste salt and the sodium sulfate waste salt are as follows:
10 parts by mass of fly ash of an electric power plant, in this embodiment, fly ash in a fly ash warehouse of Shanghai electric environmental protection thermoelectric (Nantong) Co., Ltd is used, and the specific technical parameters of heavy metals are as follows:
metal surface treatment sludge: 15 parts by mass, in particular to aluminum-containing sludge produced in the metal surface treatment industry, the water content of which is 70 wt%, the aluminum oxide content of which is 18 wt%, and the PH value of which is not lower than 6 and not higher than 9.
Sodium silicate: 5 parts by mass, the particle size is 500-800 meshes;
putty powder: 8 parts by mass, and the particle size is 500-800 meshes.
The preparation process of the ceramsite comprises the following specific steps:
s1: preparing raw materials according to the proportion, wherein the raw materials comprise premixing of waste salt mixed slag, and the waste salt mixed slag is obtained by premixing sodium chloride waste salt and sodium sulfate waste salt;
in addition, in order to ensure the uniform structure of the ceramsite, avoid bursting or local collapse in the sintering process and improve the appearance formability of the ceramsite, the waste salt mixed slag needs to be pretreated, a wet grinder is used for grinding the waste salt mixed slag into salt slurry with the particle size of more than 500 meshes, and the water content of the salt slurry is controlled at 30 wt%.
S2: fully stirring and mixing the polluted soil, the waste salt mixed slag, the fly ash of the power plant, the surface treatment sludge, the sodium silicate and the putty powder; the specific adding sequence is as follows: the surface treatment of the sludge, the silicate, the waste salt mixed slag, the polluted soil, the fly ash of the power plant and the putty powder is carried out, so that better aging effect can be obtained in the following process.
S3: then granulating, and controlling the particle size to be between 5 and 20 mm;
s4: aging at 30 deg.C for 2 days to obtain ceramsite raw material; the relative humidity is kept between 60% rh and 70% rh during the aging process.
S5: sintering at high temperature, and sintering in a rotary kiln at 1000 ℃ for 45 minutes to obtain the high-strength ceramic particles.
The technical indexes of the prepared ceramsite are as follows: the bulk density is 500 to 600kg/m3The high-performance radiation-resistant composite material belongs to continuous particle size, the nominal particle size is 5-25 mm, the strength is more than 25MPa, the boiling mass loss is less than 3.5%, the loss on ignition is less than 4.9%, the content of sulfide and sulfate is less than 1%, the content of a detected value of chloride (calculated by the content of chloride ions) is less than 0.02%, and the radioactivity meets the regulation of GB 6566. The anti-permeability grade of the ceramsite concrete prepared by the method reaches P10.
Example two
The raw materials in this example are as follows:
40 parts of polluted soil, in the embodiment, the polluted soil generated in a certain soil remediation process is adopted as one of raw materials, the sample number is 1111-2#, and the specific technical parameters are as follows:
30 parts by mass of waste salt mixed slag, in the embodiment, the concrete technical parameters of heavy metals in the industrial waste salt mixed slag obtained by proportioning the sodium chloride waste salt and the sodium sulfate waste salt are as follows:
20 parts by mass of fly ash of an electric power plant, in this embodiment, fly ash in a fly ash warehouse of Shanghai electric environmental protection thermoelectric (Nantong) Co., Ltd is still used, and the specific technical parameters of heavy metals are as follows:
15 parts by mass of sludge for metal surface treatment, in particular to aluminum-containing sludge produced in the metal surface treatment industry, wherein the water content of the sludge is 57 percent, and the aluminum oxide content of the sludge is 37 percent by weight.
Sodium silicate: 10 parts by mass, the particle size is 500-800 meshes;
putty powder: 10 parts by mass, the particle size is 500-800 meshes.
The preparation process of the ceramsite comprises the following specific steps:
s1: preparing raw materials according to the proportion, wherein the raw materials comprise premixing of waste salt mixed slag, and the waste salt mixed slag is obtained by premixing sodium chloride waste salt and sodium sulfate waste salt;
in addition, in order to ensure the uniform structure of the ceramsite, avoid bursting or local collapse in the sintering process and improve the appearance formability of the ceramsite, the waste salt mixed slag needs to be pretreated, a wet grinder is used for grinding the waste salt mixed slag into salt slurry with the particle size of more than 500 meshes, and the water content of the salt slurry is controlled at 50 wt%.
S2: fully stirring and mixing the polluted soil, the waste salt mixed slag, the fly ash of the power plant, the surface treatment sludge, the sodium silicate and the putty powder; the specific adding sequence is as follows: surface treatment sludge, silicate, waste salt mixed slag, polluted soil, fly ash of a power plant and putty powder.
S3: then granulating, and controlling the particle size to be between 5 and 20 mm;
s4: aging at 50 deg.c for 4 days while maintaining the relative humidity at 60-70% rh.
S5: sintering at high temperature in a rotary kiln at 1200 ℃ for 120 minutes to obtain the high-strength ceramic particles.
The technical indexes of the prepared ceramsite are as follows: the bulk density is 500 to 600kg/m3The high-performance radiation-resistant composite material belongs to continuous particle size, the nominal particle size is 5-25 mm, the strength is greater than 21MPa, the boiling mass loss is less than 4%, the ignition loss is less than 5%, the detected value content of sulfide and sulfate is less than 1%, the detected value content of chloride (calculated by chloride ion content) is less than 0.01%, and the radioactivity meets the regulation of GB 6566. The anti-permeability grade of the ceramsite concrete prepared by the method reaches P10.
EXAMPLE III
The raw materials in this example are as follows:
50 parts by mass of polluted soil, in the embodiment, the polluted soil generated in a certain soil remediation process is adopted as one of raw materials, the sample number is 1111-3#, and the specific technical parameters are as follows:
45 parts by mass of waste salt mixed slag, in the embodiment, the concrete technical parameters of heavy metals in the industrial waste salt mixed slag obtained by proportioning the sodium chloride waste salt and the sodium sulfate waste salt are as follows:
the fly ash of the power plant is 17 parts by mass, and in the embodiment, the fly ash in the fly ash storage of Shanghai electric environmental protection thermoelectric (Nantong) Limited company which is the same as that in the first embodiment and the second embodiment is adopted as the fly ash of the power plant in the fly ash storage of the Shanghai electric environmental protection thermoelectric (Nantong) Limited company.
17 parts by mass of metal surface treatment sludge, specifically iron-containing sludge produced in the metal surface treatment industry, the water content of the iron-containing sludge is 75%, the content of ferric oxide in the iron-containing sludge is 21%, and the pH of the sludge cannot be lower than 6 and cannot be higher than 9.
Sodium silicate: 3 parts by mass, the particle size is 500-800 meshes;
putty powder: 5 parts by mass, the particle size is 500-800 meshes.
The preparation process of the ceramsite comprises the following specific steps:
s1: preparing raw materials according to the proportion, wherein the raw materials comprise premixing of waste salt mixed slag, and the waste salt mixed slag is obtained by premixing sodium chloride waste salt and sodium sulfate waste salt.
In addition, in order to ensure the uniform structure of the ceramsite, avoid bursting or local collapse in the sintering process and improve the appearance formability of the ceramsite, the waste salt mixed slag needs to be pretreated, a wet grinder is used for grinding the waste salt mixed slag into salt slurry with the particle size of more than 500 meshes, and the water content of the salt slurry is controlled to be 20%.
S2: fully stirring and mixing the polluted soil, the waste salt mixed slag, the fly ash of the power plant, the surface treatment sludge, the sodium silicate and the putty powder; the specific adding sequence is as follows: surface treatment sludge, silicate, waste salt mixed slag, polluted soil, fly ash of a power plant and putty powder.
S3: then granulating, and controlling the particle size to be between 5 and 20 mm;
s4: aging at 45 deg.C for 3 days to obtain ceramsite raw material; the relative humidity is kept between 60% rh and 70% rh during the aging process.
S5: sintering at high temperature, and sintering in a rotary kiln at 1250 ℃ for 45 minutes to obtain the high-strength ceramic particles.
The technical indexes of the prepared ceramsite are as follows: the bulk density is 500 to 600kg/m3The high-performance radiation-resistant composite material belongs to continuous particle size, the nominal particle size is 5-25 mm, the strength is greater than 16MPa, the boiling mass loss is less than 4%, the ignition loss is less than 5%, the detected value content of sulfide and sulfate is less than 1%, the detected value content of chloride (calculated by chloride ion content) is less than 0.02%, and the radioactivity meets the regulation of GB 6566. The anti-permeability grade of the ceramsite concrete prepared by the method reaches P8.
Comparative example 1
The ceramsite adopts the following raw materials:
30 parts of polluted soil; 40 parts of waste salt mixed slag, and fly ash in a power plant: 10 parts by mass; metal surface treatment sludge: 15 parts by mass; sodium silicate: 5 parts by mass; putty powder: 8 parts by mass. The same sample of material was used as in example one and the parameters were consistent.
The manufacturing process of this example is as follows:
s1: preparing raw materials, wherein the waste salt mixed slag is obtained by premixing sodium chloride waste salt and sodium sulfate waste salt, and the content of sodium ions, chloride ions and sulfate ions in the waste salt mixed slag is controlled to be 12-20 wt%, 35-55 wt% and 5-15 wt%;
s2: adding the polluted soil, waste salt mixed slag, fly ash of a power plant, surface treatment sludge, sodium silicate and putty powder together, and then fully stirring and mixing;
s3: then granulating, and controlling the particle size to be between 5 and 20 mm;
s4: sintering at high temperature in a rotary kiln at 1000 ℃ for 60 minutes to obtain ceramic particles.
The technical indexes of the prepared ceramsite are as follows: the bulk density is 500 to 600kg/m3The nominal grain diameter is 5-25 mm, the strength is more than 10MPa, the boiling mass loss is less than 4.6 percent, and the loss on ignition is less than 6. 2 percent, the detected value content of sulfide and sulfate is more than 2 percent, the detected value content of chloride (calculated by chloride ion content) is less than 0.06 percent, and the impermeability grade of the ceramsite concrete prepared by the ceramsite concrete reaches P4.
In conclusion, in the manufacturing process, the steps of waste salt mixed slag premixing, pretreatment and subsequent aging are carried out, and various parameters of the obtained ceramsite are superior to those of the traditional ceramsite manufacturing process.
Claims (6)
1. A high-strength ceramsite prepared from industrial wastes is characterized in that:
the ceramsite adopts the following raw materials:
30-50 parts by mass of polluted soil, namely SiO in the polluted soil2The content of (A) is 65-72 wt%, and Al2O310-15 wt% of Fe2O3The content of (A) is more than 3 wt%;
30-45 parts by mass of waste salt mixed slag, wherein the content of sodium ions in the waste salt mixed slag is 12-20 wt%, the content of chloride ions is 35-55 wt%, and the content of sulfate ions is 5-15 wt%;
fly ash of a power plant: 10-20 parts by mass;
metal surface treatment sludge: 15-25 parts by mass, and the water content is 30-80 wt%;
sodium silicate: 3-10 parts by mass, the particle size is 500-800 meshes;
putty powder: 5-10 parts by mass, the particle size is 500-800 meshes;
the ceramsite is prepared by mixing raw materials in proportion, granulating, aging and sintering at high temperature.
2. The method for realizing the high-strength ceramsite of claim 1, is characterized by comprising the following steps of: the method comprises the following steps:
s1: preparing raw materials, wherein the waste salt mixed slag is obtained by premixing sodium chloride waste salt and sodium sulfate waste salt, and the content of sodium ions, chloride ions and sulfate ions in the waste salt mixed slag is controlled to be 12-20 wt%, 35-55 wt% and 5-15 wt%;
s2: fully stirring and mixing the polluted soil, the waste salt mixed slag, the fly ash of the power plant, the surface treatment sludge, the sodium silicate and the putty powder;
s3: then granulating, and controlling the particle size to be between 5 and 20 mm;
s4: aging at 30-50 deg.C for 2-4 days to obtain ceramsite raw material;
s5: high-temperature sintering, and sintering in a rotary kiln at 1000-1250 ℃ for 45-120 minutes to obtain the high-strength ceramic particles.
3. The method of claim 2, wherein the high-strength ceramsite is prepared by the following steps: before the step S2, the waste salt mixed slag is pretreated, a wet grinder is used for grinding the waste salt mixed slag into salt slurry with the particle size of more than 500 meshes, and the water content of the salt slurry is 20-50 wt%.
4. The method of claim 2, wherein the high-strength ceramsite is prepared by the following steps: in step S2, the adding sequence is: surface treatment sludge, silicate, waste salt mixed slag, polluted soil, fly ash of a power plant and putty powder.
5. The method of claim 2, wherein the high-strength ceramsite is prepared by the following steps: in step S4, the relative humidity is maintained at 60% rh to 70% rh during aging.
6. The method of claim 2, wherein the high-strength ceramsite is prepared by the following steps: the metal surface treatment sludge is iron-containing sludge or aluminum-containing sludge, the aluminum oxide content in the aluminum-containing sludge is 18-60 wt%, the ferric oxide content in the iron-containing sludge is 20-50 wt%, and the PH value cannot be lower than 6 and cannot be higher than 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011141041.4A CN112266229A (en) | 2020-10-22 | 2020-10-22 | High-strength ceramsite prepared from industrial wastes and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011141041.4A CN112266229A (en) | 2020-10-22 | 2020-10-22 | High-strength ceramsite prepared from industrial wastes and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112266229A true CN112266229A (en) | 2021-01-26 |
Family
ID=74341821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011141041.4A Pending CN112266229A (en) | 2020-10-22 | 2020-10-22 | High-strength ceramsite prepared from industrial wastes and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112266229A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045327A (en) * | 2021-04-19 | 2021-06-29 | 中国科学院过程工程研究所 | Ceramsite and preparation method and application thereof |
| CN115654915A (en) * | 2022-11-18 | 2023-01-31 | 泰州欣言企业管理咨询有限公司 | Method and equipment for preparing high-strength ceramsite by using industrial waste |
| CN116354698A (en) * | 2023-03-02 | 2023-06-30 | 宜昌光大陶粒制品有限责任公司 | Method for preparing ceramsite by sludge in sewage plant and prepared ceramsite |
| CN117263538A (en) * | 2023-11-10 | 2023-12-22 | 佛山市交通科技有限公司 | Full-solid waste green high-performance soil cementing material and preparation method and use method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2105420A1 (en) * | 2008-03-26 | 2009-09-30 | Council of Scientific&Industrial Research | A composition for building material and a process for the preparation thereof |
| CN107642786A (en) * | 2017-09-14 | 2018-01-30 | 山东清博生态材料综合利用有限公司 | A kind of system and technique of haydite procreative collaboration disposal hazardous waste |
| CN107746253A (en) * | 2017-10-27 | 2018-03-02 | 曲靖市沾益区祥达建材有限公司 | It is a kind of to utilize the method that trade waste is raw material production fired brick |
| CN207334743U (en) * | 2017-09-14 | 2018-05-08 | 山东清博生态材料综合利用有限公司 | A kind of system of haydite procreative collaboration disposal hazardous waste |
| CN208234691U (en) * | 2018-03-07 | 2018-12-14 | 内蒙古久科康瑞环保科技有限公司 | A kind of coal chemical industry wastewater zero emission processing system |
| CN109796275A (en) * | 2019-03-25 | 2019-05-24 | 武汉理工大学 | A kind of nucleocapsid light-weight aggregate and preparation method thereof |
| CN110482892A (en) * | 2019-08-12 | 2019-11-22 | 中原环资科技有限公司 | The technique of one kind of multiple inorganic dangerous waste collaboration molten sintering producing building haydites |
| CN111635155A (en) * | 2020-04-26 | 2020-09-08 | 江苏开拓者环保材料有限公司 | Preparation method of lightweight aggregate |
-
2020
- 2020-10-22 CN CN202011141041.4A patent/CN112266229A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2105420A1 (en) * | 2008-03-26 | 2009-09-30 | Council of Scientific&Industrial Research | A composition for building material and a process for the preparation thereof |
| CN107642786A (en) * | 2017-09-14 | 2018-01-30 | 山东清博生态材料综合利用有限公司 | A kind of system and technique of haydite procreative collaboration disposal hazardous waste |
| CN207334743U (en) * | 2017-09-14 | 2018-05-08 | 山东清博生态材料综合利用有限公司 | A kind of system of haydite procreative collaboration disposal hazardous waste |
| CN107746253A (en) * | 2017-10-27 | 2018-03-02 | 曲靖市沾益区祥达建材有限公司 | It is a kind of to utilize the method that trade waste is raw material production fired brick |
| CN208234691U (en) * | 2018-03-07 | 2018-12-14 | 内蒙古久科康瑞环保科技有限公司 | A kind of coal chemical industry wastewater zero emission processing system |
| CN109796275A (en) * | 2019-03-25 | 2019-05-24 | 武汉理工大学 | A kind of nucleocapsid light-weight aggregate and preparation method thereof |
| CN110482892A (en) * | 2019-08-12 | 2019-11-22 | 中原环资科技有限公司 | The technique of one kind of multiple inorganic dangerous waste collaboration molten sintering producing building haydites |
| CN111635155A (en) * | 2020-04-26 | 2020-09-08 | 江苏开拓者环保材料有限公司 | Preparation method of lightweight aggregate |
Non-Patent Citations (1)
| Title |
|---|
| 徐惠忠: "《尾矿建材开发》", 30 September 2000, 冶金工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045327A (en) * | 2021-04-19 | 2021-06-29 | 中国科学院过程工程研究所 | Ceramsite and preparation method and application thereof |
| CN115654915A (en) * | 2022-11-18 | 2023-01-31 | 泰州欣言企业管理咨询有限公司 | Method and equipment for preparing high-strength ceramsite by using industrial waste |
| CN116354698A (en) * | 2023-03-02 | 2023-06-30 | 宜昌光大陶粒制品有限责任公司 | Method for preparing ceramsite by sludge in sewage plant and prepared ceramsite |
| CN117263538A (en) * | 2023-11-10 | 2023-12-22 | 佛山市交通科技有限公司 | Full-solid waste green high-performance soil cementing material and preparation method and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112266229A (en) | High-strength ceramsite prepared from industrial wastes and preparation method thereof | |
| CN108218272B (en) | Environment-friendly artificial aggregate (aggregate) derived from waste | |
| CN102503263B (en) | Building hollow brick using industrial tailings and preparation method thereof | |
| CN110590199A (en) | Lead-zinc tailing cementing material and preparation method thereof | |
| CN1207365C (en) | Soil firming agent | |
| WO2012138399A1 (en) | Method of fabrication of construction materials from industrial solid waste | |
| CN103332877B (en) | Method for preparing inorganic cementing material by using dredged silt | |
| CN113213789B (en) | Paving brick prepared based on household garbage incineration fly ash and preparation method thereof | |
| CN110002829B (en) | Electrolytic manganese slag baking-free brick and preparation method thereof | |
| CN114591013B (en) | Artificial aggregate of river sludge and preparation method thereof | |
| CN101172799A (en) | Natural activity volcanic ash concrete blunging material and application thereof | |
| US7008478B2 (en) | Composite of consolidation-hardening pile for soft ground | |
| CN104891834A (en) | A grafting modification method of antibacterial anticorrosion fly ash | |
| CN109133683B (en) | Comprehensive and integrated utilization method of coal gangue | |
| CN114163174A (en) | Solid waste base modified cementing material and application thereof | |
| CN112479615B (en) | Geopolymer artificial aggregate based on crushing method and preparation method thereof | |
| CN113754391A (en) | Self-compacting light waste concrete and preparation method thereof | |
| CN104861406A (en) | Graft modification method for fly ash | |
| Liu et al. | The latest research progress of green building materials in lead and zinc tailings | |
| CN116947445A (en) | Method for preparing fully-solid waste pavement brick material and fully-solid waste pavement brick | |
| CN111018415A (en) | Concrete produced by using fly ash obtained by burning and curing industrial waste residues and wastes to replace natural sand and preparation method thereof | |
| CN114085054B (en) | Method for preparing functional water permeable material by using multi-source solid waste | |
| KR100627846B1 (en) | A composite of consolidation and hardening pile for soft ground | |
| CN114907073A (en) | Modified municipal sludge for covering soil of landfill and preparation method thereof | |
| CN104876464A (en) | Method for graft modification of fiber toughened fly ash |
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 | ||
| CB02 | Change of applicant information |
Address after: 225400 No. 8, Xingyuan Avenue, Taixing agricultural products processing park, Taizhou City, Jiangsu Province Applicant after: Taizhou Xinyan Enterprise Management Consulting Co.,Ltd. Address before: 226000 no.727, block D, Jingyang Plaza, 699 Renmin East Road, Chongchuan District, Nantong City, Jiangsu Province Applicant before: Nantong Xinyan Environmental Technology Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shi Bing Inventor after: Chao Ping Inventor after: Ai Chuang Inventor after: Song Wenhua Inventor before: Shi Bing Inventor before: Chao Ping |
|
| CB03 | Change of inventor or designer information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210126 |
|
| RJ01 | Rejection of invention patent application after publication |