CN110467470A - A kind of preparation method using electroplating sludge sintered building haydite - Google Patents

A kind of preparation method using electroplating sludge sintered building haydite Download PDF

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Publication number
CN110467470A
CN110467470A CN201910602978.8A CN201910602978A CN110467470A CN 110467470 A CN110467470 A CN 110467470A CN 201910602978 A CN201910602978 A CN 201910602978A CN 110467470 A CN110467470 A CN 110467470A
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haydite
sludge
electroplating sludge
electroplating
aluminium
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景奕鸣
孙英杰
赵建伟
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Qingdao University of Technology
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Qingdao University of Technology
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Priority to CN201910602978.8A priority Critical patent/CN110467470A/en
Publication of CN110467470A publication Critical patent/CN110467470A/en
Priority to PCT/CN2020/093459 priority patent/WO2021004192A1/en
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
    • 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
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
    • 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
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/606—Drying
    • 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
    • C04B2235/6562—Heating rate
    • 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

Abstract

The invention discloses a kind of preparation methods of electroplating sludge sintering ceramsite.The material rate of haydite is micaceous sand (gold mine beneficiation tailing) 50%-70%, water supply plant aluminium sludge 20%, Treatment of Industrial Park of Plating electroplating sludge 10%-30%.Raw material is dried, broken milling pretreatment, is mixed evenly, be then added the binder of 3%~5% sodium silicate solution as haydite, mixing granulation must give birth to haydite, drying, preheating, sintering, cool down and etc. haydite is made.The present invention replaces clay to provide Al using aluminium mud and micaceous sand2O3、SiO2, electroplating sludge provide fluxing agent, significantly reduce haydite cost of manufacture.Made haydite has the advantages that compression strength is high, Leaching is low etc., electroplating sludge, waterworks sludge can be disposed on a large scale, realize hazardous waste harmless treatment, resource utilization, electroplating sludge, aluminium sludge treatment cost have been saved simultaneously, as building materials, with good economic efficiency and social benefit.

Description

A kind of preparation method using electroplating sludge sintered building haydite
Technical field
The present invention relates to the recycling of hazardous waste, sludge waste is dirty using technical field more particularly to a kind of plating The preparation method of mud sintering ceramsite.
Background technique
Electroplating sludge, which refers to, generates by-product during electroplating wastewater processing, due to contain in electroplating wastewater all kinds of strong acid, Highly basic and the poisonous and hazardous chemicals such as metallic solution or even cyanide, chromic anhybride, therefore electroplating sludge is copper, chromium, nickel etc. Sediment based on heavy metallic oxide.China's electroplating sludge produces millions of tons per year, and major pollutants are each heavy metal species, If mishandling can cause secondary pollution to environment.Electroplating sludge be in National Hazard waste register it is very specific, there is poison The solid waste of property.Nowadays the common disposal options of electroplating sludge be landfill, both in electroplating sludge heavy metal progress It recycles, while there are also the risks for polluting environment.Micaceous sand is gold ore tailing, half bioelement of gold mine have copper, zinc, lead, Antimony, arsenic etc., if tailings glass is improper, through wind and weather, tailings powder or in which poisonous and harmful substance be easily diffused into big gas and water In body and soil, environmental pollution is caused；There is also endanger the problems such as big, difficulty is set as solid waste for water supply plant aluminium sludge.In There is no the researchs utilized in relation to this three classes solid waste cooperative disposal in previous research invention, it is therefore desirable to find a kind of section Energy, environmental protection, green, the method for efficiently recycling such solid waste go to improve existing processing handling problems.
Haydite as a kind of lightweight aggregate for building, it is light with body, intensity is high, water absorption rate is low, heat preservation, heat-insulated, antidetonation and The characteristics such as fire resisting, thus receive the very big attention of people.It widely used may replace common sandstone configuration light-weight aggregate coagulation Soil.But current China's haydite is mainly based on clay and haydites of book structure, and the source overwhelming majority of clay raw material is taken from arable land, Haydites of book structure raw material, which must cut into a mountain, takes stone to destroy ecological environment, does not meet the strategy of sustainable development.Therefore new haydite system need to be found Producing material material simultaneously reduces its cost of material as far as possible, the usage amount of the additives such as binder, swelling agent is reduced, to improve haydite Economic benefit and social benefit.
Summary of the invention
Existing to overcome existing technical disadvantages, the purpose of the present invention is to provide a kind of preparations of electroplating sludge sintering ceramsite On the one hand the heavy metal elements such as chromium therein can be solidificated in haydite using electroplating sludge as the raw material of sintering ceramsite by method In, its leaching concentration can be greatly reduced, realize harmlessness disposing；On the other hand it can replace the natural material such as part of clay, shale Material saves the usage amount of the increasingly natural clay matter raw material of reduction, achievees the purpose that harmlessness disposing.Reality is made The building material product of application value becomes the new way that such solid waste resource recovery utilizes, while protecting environment, saving nature Resource realizes good economic benefit and social benefit.
In view of this, the purpose of the present invention is to provide a kind of preparation methods of electroplating sludge sintering ceramsite, in order to realize Above-mentioned purpose, present invention combination example carry out clear, complete description in this application.
A kind of preparation method of electroplating sludge sintering ceramsite, comprising the following steps:
(1) electroplating sludge, micaceous sand, aluminium sludge are separately dried to constant weight, 80 meshes of sieving of pulverizing；
(2) it is mixed evenly electroplating sludge, micaceous sand, aluminium sludge to obtain haydite materials；
(3) using 3%~5% sodium silicate solution as haydite binder be added to step (2) obtained in haydite materials, mixing makes Grain must give birth to haydite；
(4) the resulting raw haydite of step (3) is put into Muffle furnace, heating rate 10oC/min, it is dry first rises to 105 oC Dry 1h then heats to 500 oC preheating 15min, is finally warming up to 1200 oC sintering 25min；
(5) allow sintered haydite slow cooling to room temperature in furnace that haydite can be obtained.
In parts by mass, the electroplating sludge, micaceous sand, aluminium sludge ratio be respectively 10%-30%, 50%-70%, 20%.
The electroplating sludge is from plating industrial district；The micaceous sand is derived from ore dressing company, is gold mine beneficiation tailing, SiO2Content is 73.6%, Al2O3Content is 11.4%；The aluminium sludge is derived from waterworks.
The main mineral of gained haydite are quartz (Quartz, SiO2)；Leaching rate of heavy metals is qualified, haydite simple grain pressure resistance Degree reaches 15MPa or more, can be applied to building field.
The raw material that the present invention is made using electroplating sludge, micaceous sand, aluminium sludge as haydite, chemical component meet SiO2 48%-68%, Al2O312%-18%, Fe2O35-10%, Na2O+K2O 2.5%-7.0%.The preparation method of use is that raw material is located in advance Reason-mixing-granulation-drying-preheating-sintering-cooling.
Beneficial effects of the present invention:
(1) compared with prior art, the raw material that the present invention is made of electroplating sludge, micaceous sand, aluminium sludge as haydite, not only It is simple process, at low cost, hazardous waste, solid waste can also be made to be fully used, reach " three change " and " 3R " principle It is required that.By being sintered heavy metals immobilization in haydite, the leaching concentration of heavy metal is both greatly reduced, environment dirt is reduced The risk of dye, while being also to be recycled heavy metal as fluxing agent, reduce sintering temperature.Sintering come out haydite there is also Certain economic value, realizing turns waste into wealth.Clay, shale etc. are also reduced for another aspect is naturally not easy regenerated resources Usage amount, meet China's energy-saving and emission-reduction policy；
(2) micaceous sand, aluminium sludge mainly provide the content of Si and Al in haydite, enhance the intensity of haydite；Plating dirt mainly mentions For fluxing agent (Fe2O3、MgO、Na2O、K2O, CaO), enhance the intensity of haydite, reduce the sintering temperature of haydite；
(3) sodium silicate solution of addition 3%~5% is used as haydite binder, plays cementation during pelletizing, raising at Ball rate.
Detailed description of the invention
It, below will be to needed in embodiment description in order to which clearer introduction illustrates technical solution of the present invention Attached drawing does simple introduction.
Fig. 1 is process flow chart of the invention；
Fig. 2 is electroplating sludge grain size distribution；
Fig. 3 is the XRD diagram of embodiment one and the sintering gained haydite of embodiment two；
Fig. 4 is SEM figure of the sintering gained haydite of embodiment one under 1000 times of mirrors；
Fig. 5 is SEM figure of the sintering gained haydite of embodiment one under 10000 times of mirrors；
Fig. 6 is SEM figure of the sintering gained haydite of embodiment two under 1000 times of mirrors；
Fig. 7 is SEM figure of the sintering gained haydite of embodiment two under 10000 times of mirrors.
Specific embodiment
With reference to the accompanying drawing with example in detail embodiments of the present invention.
As shown in Figure 1, a kind of preparation method of electroplating sludge sintering ceramsite of the present invention, includes the following steps:
(1) electroplating sludge, micaceous sand, aluminium sludge are separately dried to constant weight, 80 meshes of sieving of pulverizing；
(2) it is mixed evenly electroplating sludge, micaceous sand, aluminium sludge to obtain haydite materials；
(3) using 3%~5% sodium silicate solution as haydite binder be added to step (2) obtained in haydite materials, mixing makes Grain must give birth to haydite；
(4) the resulting raw haydite of step (3) is put into Muffle furnace, heating rate 10oC/min, it is dry first rises to 105 oC Dry 1h then heats to 500 oC preheating 15min, is finally warming up to 1200 oC sintering 25min；
(5) allow sintered haydite slow cooling to room temperature in furnace that haydite can be obtained.
" three change " and " 3R " principle, the selection of raw material of the present invention design based on solid waste mainly consider danger Waste resource recovery utilizes, saves material cost, increasing economic efficiency and the factors such as social benefit.Electroplating sludge partial size is larger (such as Fig. 2) and moisture content is higher, has a significant effect to mixing granulation, therefore need to raw material be carried out with unified pretreatment, in order to avoid influence The performance of haydite.
Specifically, electroplating sludge is from plating industrial district；Micaceous sand is derived from ore dressing company, is gold mine beneficiation tailing； Aluminium sludge is derived from waterworks.The electroplating sludge, micaceous sand, aluminium sludge ratio be respectively 10%-30%, 50%-70%, 20%.
Constituent analysis is carried out to selected materials, acquired results are as shown in table 1.
Table 1
Micaceous sand, aluminium sludge mainly provide the content of Si and Al in haydite, enhance the intensity of haydite；Dirty main provide of plating is helped Flux (Fe2O3、MgO、Na2O、K2O, CaO), enhance the intensity of haydite, reduce the sintering temperature of haydite.
Embodiment one
A kind of preparation method of electroplating sludge sintering ceramsite, the raw material composition of haydite are as follows: electroplating sludge 15%, micaceous sand 65%, aluminium Sludge 20%.
(1) electroplating sludge, micaceous sand, aluminium sludge are respectively placed in the oven drying of 105oC to constant weight, ground after taking-up 80 meshes of grinds sieving are stand-by；
(2) it is mixed evenly electroplating sludge, micaceous sand, aluminium sludge to obtain haydite materials in proportion；
(3) using 3%~5% sodium silicate solution as haydite binder be added to step (2) obtained in haydite materials, mixing makes Grain must give birth to haydite；
(4) the resulting raw haydite of step (3) is put into Muffle furnace, heating rate 10oC/min, it is dry first rises to 105 oC Dry 1h then heats to 500 oC preheating 15min, is finally warming up to 1200 oC sintering 25min；
(5) allow sintered haydite slow cooling to room temperature in furnace that haydite can be obtained.
Haydite is tested for the property:
The present invention characterizes haydite intensity with the single pellet crush strength of haydite, and experiment is using microcomputer controlled electronic universal tester to list Grain haydite carries out load destruction, measures the failing load Pc that simple grain is crushed, is calculated according to formula S=2.8Pc/ (π * 2).Its In: S is the crushing strength of simple grain, Mpa；Pc is failing load, N；X is to contact two o'clock with upper and lower bearing plate when haydite originates stress Between distance, mm.By calculating, the single pellet crush strength of haydite is 17.48MPa under this proportion, and intensity is higher to be can be applied to Building field.
Acid, neutral and carry out Leaching of Heavy Metals to haydite under the conditions of three kinds of alkalinity, 6 kinds of common heavy metals (Cr, Ni, Cd, Pb, Cu, Zn) leaching concentration is far below standard " hazardous waste judging standard leaching characteristic identification " (GB5085.3- 2007).Simultaneously by Leaching of Heavy Metals concentration respectively with " groundwater quality standard " (GB/T 14848-2017), " surface water environment Quality standard " (GB/T 3838-2002) comparison, it is found that leaching concentration meets III class standard of quality of groundwater, surface water environment matter Measure II class standard.
To haydite carry out XRD scanning, result as shown in fig. 3, it was found that the main component of haydite be quartz, just because of Molten sintering between raw material powder under high temperature forms silicate crystals and the unformed substances of glass phase such as quartz, just makes haydite Intensity with higher.SEM scanning is carried out to haydite, has Fig. 4 and Fig. 5 it is found that relatively smooth inside haydite, there are certain skies Gap, close structure, intensity are higher.
Embodiment two
A kind of preparation method of electroplating sludge sintering ceramsite, the raw material composition of haydite are as follows: electroplating sludge 20%, micaceous sand 60%, aluminium Sludge 20%.
(1) electroplating sludge, micaceous sand, aluminium sludge are respectively placed in the oven drying of 105oC to constant weight, ground after taking-up 80 meshes of grinds sieving are stand-by；
(2) it is mixed evenly electroplating sludge, micaceous sand, aluminium sludge to obtain haydite materials in proportion；
(3) using 3%~5% sodium silicate solution as haydite binder be added to step (2) obtained in haydite materials, mixing makes Grain must give birth to haydite；
(4) the resulting raw haydite of step (3) is put into Muffle furnace, heating rate 10oC/min, it is dry first rises to 105 oC Dry 1h then heats to 500 oC preheating 15min, is finally warming up to 1200 oC sintering 25min；
(5) allow sintered haydite slow cooling to room temperature in furnace that haydite can be obtained.
Haydite is tested for the property:
The present invention characterizes haydite intensity with the single pellet crush strength of haydite, and experiment is using microcomputer controlled electronic universal tester to list Grain haydite carries out load destruction, measures the failing load Pc that simple grain is crushed, is calculated according to formula S=2.8Pc/ (π * 2).Its In: S is the crushing strength of simple grain, Mpa；Pc is failing load, N；X is to contact two o'clock with upper and lower bearing plate when haydite originates stress Between distance, mm.By calculating, the single pellet crush strength of haydite is 16.16MPa under this proportion, and intensity is higher to be can be applied to Building field.
Acid, neutral and carry out Leaching of Heavy Metals to haydite under the conditions of three kinds of alkalinity, 6 kinds of common heavy metals (Cr, Ni, Cd, Pb, Cu, Zn) leaching concentration is far below standard " hazardous waste judging standard leaching characteristic identification " (GB5085.3- 2007).Simultaneously by Leaching of Heavy Metals concentration respectively with " groundwater quality standard " (GB/T 14848-2017), " surface water environment Quality standard " (GB/T 3838-2002) comparison, it is found that leaching concentration meets III class standard of quality of groundwater, surface water environment matter Measure II class standard.
To haydite carry out XRD scanning, result as shown in fig. 3, it was found that the main component of haydite be quartz, just because of Molten sintering between raw material powder under high temperature forms silicate crystals and the unformed substances of glass phase such as quartz, just makes haydite Intensity with higher.SEM scanning is carried out to haydite, has Fig. 6 and Fig. 7 it is found that relatively smooth inside haydite, there are certain skies Gap, close structure, intensity are higher.
In embodiments of the invention more, electroplating sludge, micaceous sand, aluminium sludge mass ratio combining form can be 10%, 70%, 20%；25%, 55%, 20%；30%, 50%, 20%.
In more embodiments of the invention, preheating condition can be in 400-600oC/10-30min according to practical feelings Condition adjustment；Sintering condition adjusts according to the actual situation in 1050-1200 oC/15-30min.

Claims (4)

1. a kind of preparation method of electroplating sludge sintering ceramsite, which comprises the following steps:
(1) electroplating sludge, micaceous sand, aluminium sludge are separately dried to constant weight, 80 meshes of sieving of pulverizing；
(2) it is mixed evenly electroplating sludge, micaceous sand, aluminium sludge to obtain haydite materials；
(3) using 3%~5% sodium silicate solution as haydite binder be added to step (2) obtained in haydite materials, mixing makes Grain must give birth to haydite；
(4) the resulting raw haydite of step (3) is put into Muffle furnace, heating rate 10oC/min, it is dry first rises to 105 oC Dry 1h then heats to 500 oC preheating 15min, is finally warming up to 1200 oC sintering 25min；
(5) allow sintered haydite slow cooling to room temperature in furnace that haydite can be obtained.
2. a kind of preparation method of electroplating sludge sintering ceramsite according to claim 1, which is characterized in that in parts by mass, The electroplating sludge, micaceous sand, aluminium sludge ratio be respectively 10%-30%, 50%-70%, 20%.
3. a kind of preparation method of electroplating sludge sintering ceramsite according to claim 1 or claim 2, which is characterized in that the plating Sludge is from plating industrial district；The micaceous sand is derived from ore dressing company, is gold mine beneficiation tailing, SiO2Content be 73.6%, Al2O3Content is 11.4%；The aluminium sludge is derived from waterworks.
4. a kind of preparation method of electroplating sludge sintering ceramsite according to claim 1, which is characterized in that gained haydite is main Mineral be quartz (Quartz, SiO2)；Leaching rate of heavy metals is qualified, and haydite simple grain compression strength reaches 15MPa or more, can apply In building field.
CN201910602978.8A 2019-07-05 2019-07-05 A kind of preparation method using electroplating sludge sintered building haydite Pending CN110467470A (en)

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CN111362706A (en) * 2020-04-03 2020-07-03 福建省闽发铝业股份有限公司 Preparation method of aluminum sludge ceramsite
CN111423212A (en) * 2020-04-03 2020-07-17 福建省闽发铝业股份有限公司 Preparation method for sintering building ceramsite by using electroplating sludge
WO2021004192A1 (en) * 2019-07-05 2021-01-14 青岛理工大学 Preparation method for sintering building ceramsite from electroplating sludge
CN113896443A (en) * 2021-08-31 2022-01-07 江西盖亚环保科技有限公司 Ceramsite taking slag and sludge as main materials and manufacturing process of ceramsite

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