CN109133866A - A kind of building board of the particle containing gold tailings and preparation method thereof - Google Patents
A kind of building board of the particle containing gold tailings and preparation method thereof Download PDFInfo
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- CN109133866A CN109133866A CN201811291930.1A CN201811291930A CN109133866A CN 109133866 A CN109133866 A CN 109133866A CN 201811291930 A CN201811291930 A CN 201811291930A CN 109133866 A CN109133866 A CN 109133866A
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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
- 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
- C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
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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
- 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
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
- C04B33/1322—Red mud
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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
- 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
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
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- 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
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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- C—CHEMISTRY; METALLURGY
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- 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
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
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- C—CHEMISTRY; METALLURGY
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- 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
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
- C04B2235/321—Dolomites, i.e. mixed calcium magnesium carbonates
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- 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
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- C04B2235/77—Density
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- 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
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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
- 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
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
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- 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
Abstract
The invention belongs to gold tailings recovery and reuse technology fields, and in particular to a kind of building board of the particle containing gold tailings, and preparation method is further disclosed.Building board of the present invention containing gold tailings, it is raw material using existing gold tailings waste material, gold tailings particle is obtained by particular procedure technique, it is aided with red mud and kaolin is raw material, obtained building board, with lightweight, more empty advantages, compression strength meets national standard, the fire protecting performance of gained plate is excellent simultaneously, and the utilization for gold tailings and waste red mud residues provides new approach.
Description
Technical field
The invention belongs to gold tailings recovery and reuse technology fields, and in particular to a kind of building of the particle containing gold tailings
Plate, and preparation method is further disclosed.
Background technique
In more than the 5000 years civilized histories in China, had for more than 4000 years using gold, as Egypt, India, ancient Roman at
To use one of gold and the country of other alloys earliest in the world.Gold column 79, atomic weight in the periodic table of chemical element
197, the big (19.32g/cm of golden density3) but be lighter than platinum.Golden color is golden yellow, and ductility is preferable, and 31.25g proof gold can hammer out ten thousand
The gold leaf of/mono- millimeters thick can stick 9m2Area.The volatility of gold is small, its golden volatile quantity melted under normal circumstances
It is insignificant.Fitting has good conductive and heating conduction, and conductivity is only second to silver and copper, and thermal conductivity is the 74% of silver.Gold
Chemical property is highly stable, will not aoxidize in low temperature or high temperature, does not work under room temperature with individual salt, nitre, sulfuric acid, but
Nitration mixture (chloroazotic acid) and cyanide solution but can good molten gold.Proof gold is seldom shown in that gold can be with other metal groups in nature
At alloy such as gold and silver, Jin Tong, yellow gold etc..
The exploitation of gold causes dependent on the type and reserves of gold ore deposit since most of gold ore gold content is extremely low
Almost how many tailing are just discharged in output how many ore in gold mining for manufacturing enterprise.Gold tailings are gold ores through levigate extraction
The waste discharged after gold concentrate powder is in yellow powder, there is lesser granularity and relatively uniform size distribution, containing more
SiO2、CaO、Fe2O3、Al2O3, MgO, have higher surface can and potential reaction activity.
The tailing that China's gold system is discharged every year is more than 24,500,000 tons, and since exploitation pattern is single, production practice is fallen
Afterwards, winning apparatus is outmoded, leads to a large amount of tailing remainings, can not effective recycling and reusing.Comprehensive utilization of tailing rate is very low at present, greatly
About 7%, remaining tailing is stored up generally as solid waste with the mode in mineral library, is not only taken up a large amount of soil, is caused
Tailings Dam ambient contamination, and substantial contribution need to be put into and build and safeguard for Tailings Dam.In addition, tailing itself is with super
Pollutant or harmful constituent are marked, the various chemical agents being added again in ore dressing process remain in tailing, are not passing through
Under disposition, it is directly deposited in earth's surface, a large amount of soil is not only taken up, also seriously polluted the environment of surrounding.Therefore, for
Gold tailings comprehensive utilization has become the important topic of gold mine comprehensive utilization of resources and aspect of preserving the ecological environment.
Red mud is superfine, strong basicity solid slag using bauxite as the particle generated in raw material production alumina process, often
1 ton of aluminium oxide is produced, about generates red mud 0.8-1.5 tons.China is alumina producing big country, production aluminium oxide 2378 in 2009
Ten thousand tons, account for about the 30% of Gross World Product, nearly 30,000,000 tons of the red mud of generation.Currently, China's red mud comprehensive utilization ratio is only
4%, accumulation volume of cargo in storage reaches more than 200,000,000 tons.With China aluminium oxide yield increase year by year and bauxite grade gradually decreases,
The year yield of red mud will be also continuously increased.A large amount of stackings of red mud, both land occupation, waste of resource, and easily cause environment dirty
Dye and security risk.
Chinese patent CN102531667A discloses a kind of building thermal insulation wall body material, with industrial residue red mud, iron tailings,
Feldspar and yellow sand are raw material, and building heat preservation wall is prepared by high temperature foaming.The building heat preservation wall produced in this method
Body material has lightweight, porous, high-intensitive advantage, while having the function of preferably heat preservation, heat-insulated, sound insulation.But in this method
The foaming processing step needs to complete at 1200 DEG C or so, and on the one hand excessively high temperature can destroy the quality of foaming, simultaneously
Also to the requirement of foaming machine.
Summary of the invention
For this purpose, technical problem to be solved by the present invention lies in a kind of building board of particle containing gold tailings is provided, with
Solve the problems, such as that prior art gold tailings availability is poor.
In order to solve the above technical problems, the building board of the particle of the present invention containing gold tailings, including following weight
Part prepares raw material: gold tailings particle 30-50 parts by weight, red mud 30-40 parts by weight, kaolin 10-30 parts by weight, foaming agent
2-8 parts by weight, water 10-15 parts by weight.
Preferably, the building board of the particle containing gold tailings prepares raw material including following parts by weight: gold tail
40 parts by weight of mine particle, 35 parts by weight of red mud, 20 parts by weight of kaolin, 5 parts by weight of foaming agent, 12 parts by weight of water.
More preferably, the gold tailings particle is gold tailings modified acquisition in accordance with the following steps:
(1) it takes gold tailings to cross 800-1250 mesh, and magnetic separator is added and screens out smart iron ore;
(2) remaining tailing adjusts pH to neutrality after adding water slurrying, spare;
(3) glidant is added into the tailing slurries and is modified processing;
(4) coupling agent is added into the tailing slurries after the modification and mixes;
(5) by treated, the tailing slurries are filtered, and solid tailing is taken to dry, and are ground using mechanical grinder;
(6) tailings particles after grinding are handled into the required gold tailings to get treated in 600-800 DEG C of high-temperature calcination
Particle.
In the step (3), the glidant is talcum powder, and the additional amount of the glidant is the 2- of the tailing
10wt%.
In the step (4), the coupling agent is the composite coupler for including calcium carbonate and titanate coupling agent, the idol
Two amount of addition for joining agent is the 3-5wt% of the tailing amount.
The foaming agent is calcium carbonate or dolomite class foaming agent.
The invention also discloses a kind of methods of building board for preparing the particle containing gold tailings, including walk as follows
It is rapid:
(a) it takes a selected amount of gold tailings particle, red mud, kaolin and foaming agent to mix, obtains mixture;
(b) add a selected amount of water into mixture, inject mold after mixing evenly, obtain green body after molding;
(c) manufactured plate body drying to moisture content is lower than 0.1%;
(d) the plate green body after drying is subjected to foaming processing, up to required plate after cooling and shaping.
In the step (d), the blowing temperature of the foaming step is 500-600 DEG C.
In the step (c), the drying steps are 100-120 DEG C of drying.
The method of the building board of the particle containing gold tailings described in the preparation further includes obtaining the gold tailings
The step of particle, specifically includes:
(1) it takes gold tailings to cross 800-1250 mesh, and magnetic separator is added and screens out smart iron ore;
(2) remaining tailing adjusts pH to neutrality after adding water slurrying, spare;
(3) glidant is added into the tailing slurries and is modified processing;
(4) coupling agent is added into the tailing slurries after the modification and mixes;
(5) by treated, the tailing slurries are filtered, and solid tailing is taken to dry, and are ground using mechanical grinder;
(6) tailings particles after grinding are handled into the required gold tailings to get treated in 600-800 DEG C of high-temperature calcination
Particle.
Building board of the present invention containing gold tailings is raw material using existing gold tailings waste material, by gold tailings
Particular procedure technique, it is miscellaneous that the gold tailings particle of acquisition has effectively removed heavy metal substance and radioactive substance that it contains etc.
Matter, the preparation of treated gold tailings particle can be used for building board.Through performance detection it is found that tail containing gold of the present invention
The building board of mine particle, with lightweight, more empty advantages, compression strength meets national standard, while gained plate is anti-
Fire is had excellent performance, and the utilization for gold tailings and waste red mud residues provides new approach.
The present invention is aided with red mud and kaolin using the gold tailings particle obtained by particular procedure technique for original
Material can realize the low temperature fast foaming processing of 30-60min, technique energy when preparing plate under 500-600 DEG C of low temperature
Consume extremely low, while properties of product are preferable.
Specific embodiment
The gold tailings handled in the following embodiments of the present invention are the gold tailings of the town Zhaoyuan, shandong Jin Ling gold mine, chemical examination point
Mineral composition, material properties and the size distribution of gold tailings are analysed, the mineral composition of the gold tailings is as follows: Au:
0.06wt%, Ag:1.00wt%, SiO2: 74.6wt%, Al2O3: 13.4wt%, K2O:4.06%, Na2O:2.01wt%, MgO:
0.37wt%, CaO:1.23wt%, TFe:1.56wt%, S:0.1wt% (Sheng Ji).Micronutrient levels see the table below 1.
1 gold tailings micronutrient levels of table
Embodiment 1 prepares gold tailings particle
A kind of processing method of gold tailings of the present invention, includes the following steps:
(1) gold tailings are taken, after repeatedly screening, cross 800-1250 mesh, and magnetic separator is added and screens out smart iron ore,
So that amount containing iron ore is lower than 0.5wt% in remaining tailing;
(2) it will add water that Tailings Slurry is made in remaining tailing, the additional amount of water is 2 times of amounts of tailing amount;Then according to tailing
The pH value of slurries, it is spare with the pH value of dilute HCL solution or dilute NaOH solution tune tailing slurries to neutrality;
(3) talcum powder that addition accounts for the gangue solids amount 2wt% into above-mentioned Tailings Slurry liquid is modified processing;
(4) coupling agent (carbonic acid for accounting for the gangue solids amount 5wt% is added into the tailing slurries after above-mentioned modification
Calcium and titanate coupling agent TMC-201 are mixed with 1:1) and mix;
(5) the tailing slurries after above-mentioned modification are filtered, is separated by solid-liquid separation and collects solid remaining fund and is dried
Processing, grinds the tailing followed by mechanical grinder, collects the tailings particles of cylindric needle-like structure, crosses 600 meshes
Processing, so that 600 mesh and the granule content of the above mesh number are at least 97% in the tailings particles;
(6) tailings particles after grinding are handled into the required gold tailings to get treated in 600-800 DEG C of high-temperature calcination
Particle.
Embodiment 2 prepares gold tailings particle
A kind of processing method of gold tailings of the present invention, includes the following steps:
(1) gold tailings are taken, after repeatedly screening, cross 800-1250 mesh, and magnetic separator is added and screens out smart iron ore,
So that amount containing iron ore is lower than 0.5wt% in remaining tailing;
(2) it will add water that Tailings Slurry is made in remaining tailing, the additional amount of water is 3 times of amounts of tailing amount;Then according to tailing
The pH value of slurries, it is spare with the pH value of dilute HCL solution or dilute NaOH solution tune tailing slurries to neutrality;
(3) talcum powder that addition accounts for the gangue solids amount 10wt% into above-mentioned Tailings Slurry liquid is modified processing;
(4) coupling agent (carbonic acid for accounting for the gangue solids amount 3wt% is added into the tailing slurries after above-mentioned modification
Calcium and titanate coupling agent TMC-201 are mixed with 1:1) and mix;
(5) the tailing slurries after above-mentioned modification are filtered, is separated by solid-liquid separation and collects solid remaining fund and is dried
Processing, grinds the tailing followed by mechanical grinder, collects the tailings particles of cylindric needle-like structure, crosses 600 meshes
Processing, so that 600 mesh and the granule content of the above mesh number are at least 97% in the tailings particles;
(6) tailings particles after grinding are handled into the required gold tailings to get treated in 600-800 DEG C of high-temperature calcination
Particle.
Embodiment 3 prepares gold tailings particle
A kind of processing method of gold tailings of the present invention, includes the following steps:
(1) gold tailings are taken, after repeatedly screening, cross 800-1250 mesh, and magnetic separator is added and screens out smart iron ore,
So that amount containing iron ore is lower than 0.5wt% in remaining tailing;
(2) it will add water that Tailings Slurry is made in remaining tailing, the additional amount of water is 2 times of amounts of tailing amount;Then according to tailing
The pH value of slurries, it is spare with the pH value of dilute HCL solution or dilute NaOH solution tune tailing slurries to neutrality;
(3) talcum powder that addition accounts for the gangue solids amount 6wt% into above-mentioned Tailings Slurry liquid is modified processing;
(4) coupling agent (carbonic acid for accounting for the gangue solids amount 4wt% is added into the tailing slurries after above-mentioned modification
Calcium and titanate coupling agent TMC-201 are mixed with 1:1) and mix;
(5) the tailing slurries after above-mentioned modification are filtered, is separated by solid-liquid separation and collects solid remaining fund and is dried
Processing, grinds the tailing followed by mechanical grinder, collects the tailings particles of cylindric needle-like structure, crosses 600 meshes
Processing, so that 600 mesh and the granule content of the above mesh number are at least 97% in the tailings particles;
(6) tailings particles after grinding are handled into the required gold tailings to get treated in 600-800 DEG C of high-temperature calcination
Particle.
Embodiment 4 prepares building board
The raw material for preparing including following parts by weight: the building board of the particle containing gold tailings described in the present embodiment is implemented
Gold tailings particle 30kg obtained, red mud 40kg, kaolin 10kg, calcium carbonate foaming agent 8kg, water 10kg in example 1.
The method that the building board of the particle containing gold tailings is prepared in the present embodiment, includes the following steps:
(a) it takes a selected amount of gold tailings particle, red mud, kaolin and foaming agent to mix, obtains mixture;
(b) add a selected amount of water into mixture, inject mold after mixing evenly, obtain base after being conventionally molded
Body;
(c) manufactured plate green body is lower than 0.1% in 100-120 DEG C of drying to moisture content;
(d) the plate green body after drying is subjected to foaming processing 30-60min at 500-600 DEG C, after cooling and shaping to obtain the final product
Required plate.
After tested, the density of building board obtained by the present embodiment is 0.65g/cm3, meet wanting for JC/T 1062-2007
It asks;The porosity is 45.1%, and compression strength 25.1MPa meets the requirement of GB 13544-2011;Thermal coefficient is 0.05w/
(mk), the requirement for meeting JC/T 1062-2007 reaches A grades of fire proofing material requirements.
Embodiment 5 prepares building board
The raw material for preparing including following parts by weight: the building board of the particle containing gold tailings described in the present embodiment is implemented
Gold tailings particle 50kg obtained, red mud 30kg, kaolin 30kg, foaming agent 2kg, water 15kg in example 2.
The method of the building board of the particle containing gold tailings is prepared in the present embodiment with embodiment 4.
After tested, the density of building board obtained by the present embodiment is 0.68g/cm3, meet wanting for JC/T 1062-2007
It asks;The porosity is 45.2%, and compression strength 24.8MPa meets the requirement of GB 13544-2011;Thermal coefficient is 0.048w/
(mk), the requirement for meeting JC/T 1062-2007 reaches A grades of fire proofing material requirements.
Embodiment 6 prepares building board
The raw material for preparing including following parts by weight: the building board of the particle containing gold tailings described in the present embodiment is implemented
Gold tailings particle 40kg obtained, red mud 35kg, kaolin 20kg, foaming agent 5kg, water 12kg in example 3.
The method of the building board of the particle containing gold tailings is prepared in the present embodiment with embodiment 4.
After tested, the density of building board obtained by the present embodiment is 0.62g/cm3, meet wanting for JC/T 1062-2007
It asks;The porosity is 45.5%, and compression strength 25.8MPa meets the requirement of GB 13544-2011;Thermal coefficient is 0.045w/
(mk), the requirement for meeting JC/T 1062-2007 reaches A grades of fire proofing material requirements.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of building board of particle containing gold tailings, which is characterized in that prepare raw material including following parts by weight: gold tail
Mine particle 30-50 parts by weight, red mud 30-40 parts by weight, kaolin 10-30 parts by weight, foaming agent 2-8 parts by weight, water 10-15 weight
Measure part.
2. the building board of the particle according to claim 1 containing gold tailings, which is characterized in that including following parts by weight
Prepare raw material: 40 parts by weight of gold tailings particle, 35 parts by weight of red mud, 20 parts by weight of kaolin, 5 parts by weight of foaming agent, water 12
Parts by weight.
3. the building board of the particle according to claim 1 or 2 containing gold tailings, which is characterized in that the gold tailings
Particle, which is that gold tailings are modified in accordance with the following steps, to be obtained:
(1) it takes gold tailings to cross 800-1250 mesh, and magnetic separator is added and screens out smart iron ore;
(2) remaining tailing adjusts pH to neutrality after adding water slurrying, spare;
(3) glidant is added into the tailing slurries and is modified processing;
(4) coupling agent is added into the tailing slurries after the modification and mixes;
(5) by treated, the tailing slurries are filtered, and solid tailing is taken to dry, and are ground using mechanical grinder;
(6) tailings particles after grinding are handled into the required gold tailings to get treated in 600-800 DEG C of high-temperature calcination
Grain.
4. the building board of the particle according to claim 3 containing gold tailings, which is characterized in that in the step (3), institute
Stating glidant is talcum powder, and the additional amount of the glidant is the 2-10wt% of the tailing.
5. the building board of the particle according to claim 3 or 4 containing gold tailings, which is characterized in that the step (4)
In, the coupling agent is the composite coupler for including calcium carbonate and titanate coupling agent, and the additional amount of the coupling agent is described
The 3-5wt% of tailing amount.
6. the building board of the particle according to claim 1-5 containing gold tailings, which is characterized in that the foaming
Agent is calcium carbonate or dolomite class foaming agent.
7. a kind of method for the building board for preparing the particle described in any one of claims 1-6 containing gold tailings, feature exist
In including the following steps:
(a) it takes a selected amount of gold tailings particle, red mud, kaolin and foaming agent to mix, obtains mixture;
(b) add a selected amount of water into mixture, inject mold after mixing evenly, obtain green body after molding;
(c) manufactured plate body drying to moisture content is lower than 0.1%;
(d) the plate green body after drying is subjected to foaming processing, up to required plate after cooling and shaping.
8. the method for the building board of the particle containing gold tailings described in preparation according to claim 7, which is characterized in that
In the step (d), the blowing temperature of the foaming step is 500-600 DEG C.
9. the method for the building board of the particle containing gold tailings described in preparation according to claim 7 or 8, feature exist
In in the step (c), the drying steps are 100-120 DEG C of drying.
10. according to the method for the building board of the particle containing gold tailings described in the described in any item preparations of claim 7-9,
It is characterized in that, further includes the steps that obtaining the gold tailings particle, specifically include:
(1) it takes gold tailings to cross 800-1250 mesh, and magnetic separator is added and screens out smart iron ore;
(2) remaining tailing adjusts pH to neutrality after adding water slurrying, spare;
(3) glidant is added into the tailing slurries and is modified processing;
(4) coupling agent is added into the tailing slurries after the modification and mixes;
(5) by treated, the tailing slurries are filtered, and solid tailing is taken to dry, and are ground using mechanical grinder;
(6) tailings particles after grinding are handled into the required gold tailings to get treated in 600-800 DEG C of high-temperature calcination
Grain.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711368527 | 2017-12-18 | ||
CN201711368527X | 2017-12-18 |
Publications (1)
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CN112960968A (en) * | 2021-03-11 | 2021-06-15 | 重庆昊磐节能科技有限公司 | High-strength lightweight aggregate prepared from gold smelting tailings and preparation method thereof |
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CN112960968A (en) * | 2021-03-11 | 2021-06-15 | 重庆昊磐节能科技有限公司 | High-strength lightweight aggregate prepared from gold smelting tailings and preparation method thereof |
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