CN110330360A - A kind of novel light aggregate foaming agent and preparation method thereof - Google Patents
A kind of novel light aggregate foaming agent and preparation method thereof Download PDFInfo
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- CN110330360A CN110330360A CN201910263670.5A CN201910263670A CN110330360A CN 110330360 A CN110330360 A CN 110330360A CN 201910263670 A CN201910263670 A CN 201910263670A CN 110330360 A CN110330360 A CN 110330360A
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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- C04B33/1328—Waste materials; Refuse; Residues without additional clay
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- 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
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- 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
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
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Abstract
The present invention relates to a kind of novel light aggregate foaming agents and preparation method thereof.A kind of novel light aggregate foaming agent, it is characterised in that mixed by copper smelting slag powder and modifying agent, the additive amount of modifying agent is the 0.1%~10% of copper smelting slag powder quality.The modifying agent includes any one or any two or more in waterglass, sodium sulphate, triethanolamine, carbon dust, coal dust etc. by the mixing arbitrarily matched.The foaming agent can be such that the bulk density of light-weight aggregate is substantially reduced, and can effectively realize copper smelting slag resource utilization.
Description
Technical field
The invention belongs to field of non-metallic materials, it is related to a kind of novel light aggregate foaming agent and preparation method thereof, specifically
The copper ashes powder that is process using copper smelting slag as novel light aggregate foaming agent, and illustrate copper ashes powder preparation and
Application method.
Background technique
Light-weight aggregate is a kind of porous material, is divided into natural light-weight aggregate and artificial lightweight aggregate by its formation condition；By its material
Property is divided into inorganic light-weight aggregate and organic light-weight aggregate (the swollen pearl of such as polystyrene, carbon pearl).Inorganic light-weight aggregate is come by its raw material
Source is divided into: 1. natural light-weight aggregate, such as float stone, scoria and tufa.2. artificial lightweight aggregate, such as leca, shale
Haydite, lytag, coal gangue haydite, expanded perlite, expanded slag pearl, expanded vermiculite, zeolite light-weight aggregate, it is porous sintered
Material, cinder etc..Using suitable raw material, can be obtained by ingredient, molding, drying, roasting, cooling or maintenance with one
Determine the light-weight aggregate of intensity and physicochemical property.For light-weight aggregate because density is low, intensity is high, and porosity is high, and coefficient of softing is high, physical chemistry
Matter is stablized, features such as raw material sources are extensive, finished product is economical and practical, and be widely used in building, gardens, agricultural, water process and
Oil exploitation, the industry fields such as chemical industry, and play a significant role.Light-weight aggregate raw material sources are extensive, and raw material is different, then manufactured light
Aggregate feature is different, to make light-weight aggregate that there is desired water absorption rate, pore volume, porosity, bulk density, mechanical strength etc.,
Need to be added certain auxiliary material, such as foaming agent.With the consumption and relevant laws and regulations of the raw material resources such as tonerde
It is perfect, using auxiliary materials such as foaming agents, increasingly improved using the demand that other type raw materials prepare high-quality light-weight aggregate.
Foaming agent, be otherwise known as swelling agent, pore former, pore-foaming agent, and expansion aiding agent etc., foaming agent is primarily referred to as in light-weight aggregate system
It can produce gas during standby, or can react with other substances and generate gas, hole is left inside light-weight aggregate
Substance.Although itself being difficult to melt at high temperature in addition, some light-weight aggregate raw materials can produce gas under the high temperature conditions
It forms the liquid phase for being suitable for foaming or liquid phase viscosity is bad, lead to that hole can not be left inside light-weight aggregate, then need that an earnest is added
Matter is adjusted to generate suitable liquid phase.The substance of this energy feed change molten condition, because can also make certain light-weight aggregates
It generates hole or improves its performance for generating hole, thus foaming agent is also referred to as by people.
Copper smelting slag is the residue of generation during pyrogenic process smelting copper, and copper smelting slag resource utilization rate is low at present, if copper smelting
Refining slag, which is accumulated for a long time and cannot achieve consumption, to bring many detrimental effects to production and surrounding enviroment.It is estimated that I
State's one ton of copper of every production that is averaged will produce 2.0~2.3 tons of slag, copper smelting slag China storage more than 50,000,000 tons.Although
Contain a large amount of valuable elements in these copper smelting slags, it can be difficult to recycling, such as copper smelting slag iron content 40% or so, is higher than
The mining grade of China's iron ore, but due to the existence form of iron complexity, be difficult to provide as iron using prior art economic condition
Source is utilized, and which results in the huge wastes of resource.In this context, light-weight aggregate foaming agent is prepared to mentioning using copper smelting slag
The utilization rate of high copper smelting slag alleviates environmental pollution, increases Business Economic Benefit etc. and all has important practical significance.
Summary of the invention
It is an object of the invention to provide a kind of novel light aggregate foaming agents and preparation method thereof, which can make light-weight aggregate
Bulk density be substantially reduced, can effectively realize copper smelting slag resource utilization.
To achieve the goals above, the technical solution used in the present invention is: a kind of novel light aggregate foaming agent, feature
Be to be mixed by copper smelting slag powder and modifying agent, the additive amount of modifying agent be copper smelting slag powder quality 0.1%~
10% (preferred, 2%~5%).The modification is not required preparation process, also has hair without modified copper smelting slag
Bubble effect (but after modifying agent is added, effect is more preferable, sees embodiment 1, embodiment 4-6).
A kind of preparation method of novel light aggregate foaming agent, it is characterised in that include the following steps:
1) copper smelting slag (abbreviation copper ashes) is carried out grinding to granularity is that 0.074mm or less accounting is greater than 60% (quality),
Obtain copper smelting slag powder (abbreviation copper ashes powder)；The grinding is not required preparation process, and different copper smelting slags has
Different granularities, such as thinner ore dressing dilution slag, can directly be used without grinding；
2) it by 0.1%~10% (preferred, 2~5%) that the additive amount of modifying agent is copper smelting slag powder quality, chooses
Modifying agent；Modifying agent and copper smelting slag powder are stirred, novel light aggregate foaming agent is obtained.
The modifying agent includes any one or any two in waterglass, sodium sulphate, triethanolamine, carbon dust, coal dust etc.
Kind or more press any proportion mixing.
The copper smelting slag refers mainly to the smelting slag generated during pyrogenic process smelting copper, blowing slag, refining slag, pyrogenic process dilution
Any one or any two or more (including two kinds) in slag, ore dressing dilution slag presses the mixing of any proportion.
The pyrogenic process smelting copper also includes electrometallurgy copper, and electrometallurgy copper refers to that the electric power is extracted from ore or other raw materials, returned
Receive the process with refined metals copper.
The copper smelting slag, if according to the slag type of cooling classify, can be divided into Water Quenching Slag, natural cooling slag, heat preservation it is cold
But slag, cinder ladle slow cooling slag, casting slag machine casting slag etc..
The smelting slag includes but is not limited to blast furnace slag, flash clinker, electroslag, reflection clinker, Rouyn-Noranda clinker, bottom
The smelting slag that the smelting slag and bath smelting technique that blown converter slag, suspension smelting technique generate generate.
The blowing slag includes but is not limited to Horizontal revolving clinker, siphon converter slag, Mitsubishi process blowing clinker, continuous converting
The blowing slag that the blowing slag and suspension converting process that clinker, flash converting process generate generate.
The refining slag includes but is not limited to rotary refining furnace slag, reflection clinker.
The pyrogenic process dilution slag includes but is not limited to electric furnace process, reflection oven process, Vacuum cleaning method, inder pot method, fused salt extraction
The dilution slag that method generates.
The ore dressing dilution slag refers mainly to the smelting slag generated during pyrogenic process smelting copper, blowing slag, refining slag, pyrogenic process dilution
Milltailings of the slag by generation after ore dressing dilution.
The application of novel light aggregate foaming agent: being the 5 of light-weight aggregate material quality by the additional amount of novel light aggregate foaming agent
~30% (most preferably 10%~20%), chooses novel light aggregate foaming agent, and novel light aggregate foaming agent passes through mixing etc.
Mode is added in light-weight aggregate raw material, and light-weight aggregate raw material are then made or are attached to light-weight aggregate raw material by modes such as claddings
On, then manufactured light-weight aggregate raw material are roasted, light-weight aggregate finished product can be obtained.
The maturing temperature is 1050~1200 DEG C (different raw material have different maturing temperatures)), heating rate
For 10 DEG C/min~30 DEG C/min, calcining time is 5min~25min.
The light-weight aggregate raw material is industrial residue, such as: mill tailings mud, coal gangue powder, plant residue；Or city is solid
It is useless, such as: bottom mud in lake, municipal sludge, water sludge, shield slurry rubbish；Or all kinds of bed muds and port dredging mud etc. are wherein
Any one or any two or more mixing according to a certain ratio.Such as (by weight percent): bottom mud in lake 30%~
70%, shield slurry 30%~70%；Or mill tailings mud 10%~50%, bottom mud in lake 40%~60%, shield slurry
20%~40%；Or coal gangue powder 10%~40%, municipal sludge 20%~40%, plant residue 20%~40% etc..
Working principle:
Copper smelting slag contains a large amount of magnetic iron ore and a small amount of bloodstone, and wherein magnet mineral content is about 3%~25%
(quality).Magnetic iron ore and bloodstone in copper ashes powder at high temperature can be with carbonaceous material (such as humics in light-weight aggregate raw material
Matter, organic matter, animals and plants remnant etc.), or chemistry occurs instead with the carbonaceous (carbon dust, coal dust) being added thereto as modifying agent
It answers, generates gas, to leave hole inside light-weight aggregate, the FeO in addition reacting generation is also good cosolvent, can be promoted
Feed liquor is mutually formed, and realizes foaming.
Main following (1)~(4) of its reaction equation:
The beneficial effects of the present invention are: the chemical composition of 1, copper smelting slag mainly has Fe, SiO2、CaO、Al2O3,MgO；Mine
Object composition mainly has fayalite, magnetic iron ore, bloodstone, vitreous copper etc..Light-weight aggregate foaming agent of the present invention actually makes
Used time foaming effect is good, and light-weight aggregate density can be effectively reduced, inexpensively easily obtain, is applied widely to light-weight aggregate raw material, and can
Light-weight aggregate maturing temperature is effectively reduced, reduces energy consumption, reduce cost；Furthermore with copper smelting slag as light-weight aggregate foaming agent
Realize the resource utilization of copper smelting slag.It can make the volume of light-weight aggregate using novel light aggregate foaming agent provided by the present invention
Density reduces by 30%~500% (bulk density 430kg/m of the present invention3Hereinafter, simultaneously can according to require adjustment density to 300kg/m3
Below), the technology of light-weight aggregate preparation is effectively promoted, while can efficiently utilize copper smelting slag, economic valence with higher
Value.2, novel light aggregate foaming agent provided by the present invention can be used for domestic sludge, sewage sludge, industrial sludge, lake river
Flow prepared by ocean dredged sludge, lake river ocean bed mud, flyash, gangue, plant residue, all kinds of dregs, all kinds of lecas
Preparation, using the novel light aggregate foaming agent prepare light-weight aggregate, can be used as heat preservation, heat-insulated building filler, also can be used as every
Sound, sound absorption environmentally conscious materials, it is also possible to chemical industry, the fields such as water process have the characteristics that economic and environment-friendly, high-effect high-quality.3, copper
Ground-slag end can effectively realize copper smelting slag resource utilization, and low in cost, practicability as novel light aggregate foaming agent
By force, process is environmentally protective.
Specific embodiment
It, below will be to the technical side in the embodiment of the present invention to keep technical solution of the present invention and technical effect clearer
Case is clearly and completely described, it is clear that and described embodiment is a part of the embodiments of the present invention, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1
The copper smelting slag after ore dressing dilution, i.e. ore dressing dilution slag are selected, rolling apparatus is made it through, obtains Copper making
Ground-slag；Waterglass (modifying agent) is added in Copper making ground-slag, the additive amount of waterglass is the 0.1% of copper smelting slag powder quality,
After fully dispersed, copper smelting slag powder (i.e. a kind of novel light aggregate foaming agent) is obtained；Copper smelting slag powder is added to lake bottom
In mud, the additive amount of copper smelting slag powder is 20wt% (bottom mud in lake accounts for 80wt%), and it is 1.5cm~2cm that partial size, which is then made,
Haydite raw material, roast 12min at 1150 DEG C after drying, then cool down, it is about 350kg/m that apparent density, which can be obtained,3's
Haydite.
Embodiment 2
Pyrogenic process dilution slag is selected, carries out broken and ore grinding using jaw crusher, oppositely rolling roller crusher, ball mill, finally
Obtain the copper smelting slag powder (i.e. a kind of novel light aggregate foaming agent) that 0.074mm or less accounts for 65% (quality)；Then Copper making
Ground-slag is added in light-weight aggregate raw material (in bottom mud in lake and shield slurry), and the additive amount of Copper making ground-slag is the (lake 10wt%
Bed mud accounts for 60wt%, shield slurry 30wt%), the haydite raw material that partial size is 1.5cm~2cm are then made, in 1200 after drying
12min is roasted at DEG C, is then cooled down, and it is about 430kg/m that apparent density, which can be obtained,3Haydite.
Embodiment 3
Pyrogenic process dilution slag is selected, carries out broken and ore grinding using jaw crusher, oppositely rolling roller crusher, ball mill, finally
The copper smelting slag powder that 0.074mm or less accounts for 60% (quality) is obtained, is then stirred with ore dressing dilution slag with the weight ratio of 1:1
It mixes mixing and obtains a kind of novel light aggregate foaming agent after mixing sufficiently；Novel light aggregate foaming agent is added in light-weight aggregate raw material
(in iron ore mine mud and bottom mud in lake), additive amount are 12% (iron ore mine mud 40wt%, bottom mud in lake account for 48wt%), then
The haydite raw material that partial size is 1.5cm~2cm are made, roasts 12min at 1200 DEG C after drying, then cools down, table can be obtained
Seeing density is about 420kg/m3Haydite.
Embodiment 4
Pyrogenic process dilution slag is selected, carries out broken and ore grinding using jaw crusher, oppositely rolling roller crusher, ball mill, finally
The copper smelting slag powder that 0.074mm or less accounts for 65% (quality) is obtained, waterglass (modifying agent) is added in Copper making ground-slag, water glass
The additive amount of glass be copper smelting slag powder quality 2% to get arrive a kind of novel light aggregate foaming agent；Then a kind of novel light collection
Material foaming agent is added in light-weight aggregate raw material (coal gangue powder and shield slurry), and the additive amount of novel light aggregate foaming agent is
10wt% (coal gangue powder 35wt%, shield slurry account for 55wt%) is then made the haydite raw material that partial size is 1.5cm~2cm, dries
12min is roasted at 1200 DEG C after dry, is then cooled down, it is about 380kg/m that apparent density, which can be obtained,3Haydite.
Embodiment 5
Pyrogenic process dilution slag is selected, carries out broken and ore grinding using jaw crusher, oppositely rolling roller crusher, ball mill, finally
The copper smelting slag powder that 0.074mm or less accounts for 65% (quality) is obtained, waterglass (modifying agent) is added in Copper making ground-slag, water glass
The additive amount of glass be copper smelting slag powder quality 5% to get arrive a kind of novel light aggregate foaming agent；Then a kind of novel light collection
Material foaming agent is added in light-weight aggregate raw material (water sludge and bottom mud in lake), and the additive amount of Copper making ground-slag is 10wt% (water
Body sludge 60wt%, bottom mud in lake account for 30wt%), be then made partial size be 1.5cm~2cm haydite raw material, after drying in
12min is roasted at 1200 DEG C, is then cooled down, and it is about 350kg/m that apparent density, which can be obtained,3Haydite.
Embodiment 6
Pyrogenic process dilution slag is selected, carries out broken and ore grinding using jaw crusher, oppositely rolling roller crusher, ball mill, finally
The copper smelting slag powder that 0.074mm or less accounts for 65% (quality) is obtained, sodium sulphate (modifying agent) is added in Copper making ground-slag, sulfuric acid
The additive amount of sodium be copper smelting slag powder quality 10% to get arrive a kind of novel light aggregate foaming agent；Then a kind of novel light
The foaming agent that gathers materials is added in light-weight aggregate raw material (bottom mud in lake), and the additive amount of Copper making ground-slag is that (bottom mud in lake accounts for 10wt%
90wt%), the haydite raw material that partial size is 1.5cm~2cm or so are then made, roast 12min at 1200 DEG C after drying, then
Cooling, it is about 315kg/m that apparent density, which can be obtained,3Haydite.
It should be understood that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.Although ginseng
According to previous embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be with
It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (10)
1. a kind of novel light aggregate foaming agent, it is characterised in that it is mixed by copper smelting slag powder and modifying agent, modifying agent
Additive amount is the 0.1%~10% of copper smelting slag powder quality.
2. a kind of novel light aggregate foaming agent according to claim 1, it is characterised in that: the additive amount of modifying agent is copper smelting
Refine the 2%~5% of slag powder quality.
3. a kind of novel light aggregate foaming agent according to claim 1 or 2, it is characterised in that: the modifying agent includes water
Glass, sodium sulphate, triethanolamine, carbon dust, any one or any two or more in coal dust press the mixing of any proportion.
4. a kind of preparation method of novel light aggregate foaming agent as described in claim 1, it is characterised in that include the following steps:
1) copper smelting slag is carried out grinding to granularity is that 0.074mm or less accounting is greater than 60% (quality), obtains Copper making ground-slag
End；
2) by 0.1%~10% that the additive amount of modifying agent is copper smelting slag powder quality, modifying agent is chosen；By modifying agent and copper
Metallurgical slag powder is stirred, and obtains novel light aggregate foaming agent.
5. a kind of preparation method of novel light aggregate foaming agent according to claim 4, it is characterised in that: modifying agent adds
Dosage is the 2%~5% of copper smelting slag powder quality.
6. a kind of preparation method of novel light aggregate foaming agent according to claim 4 or 5, it is characterised in that: described to change
Property agent include waterglass, sodium sulphate, triethanolamine, carbon dust, any one or any two or more in coal dust by any proportion
Mixing.
7. a kind of preparation method of novel light aggregate foaming agent according to claim 4, it is characterised in that: the Copper making
Slag refers mainly to the smelting slag generated during pyrogenic process smelting copper, blowing slag, refining slag, pyrogenic process dilution slag, appointing in ore dressing dilution slag
One kind of anticipating or any two above mixing by any proportion.
8. a kind of preparation method of novel light aggregate foaming agent according to claim 7, it is characterised in that: the pyrogenic process smelting
Copper also includes electrometallurgy copper.
9. a kind of preparation method of novel light aggregate foaming agent according to claim 7, it is characterised in that: the smelting slag
Including but not limited to blast furnace slag, flash clinker, electroslag, reflection clinker, Rouyn-Noranda clinker, bottom blowing clinker, smelting in suspension work
The smelting slag that the smelting slag and bath smelting technique that skill generates generate；
The blowing slag includes but is not limited to Horizontal revolving clinker, siphon converter slag, Mitsubishi process blowing clinker, continuous-blowing furnace
The blowing slag that the blowing slag and suspension converting process that slag, flash converting process generate generate；
The refining slag includes but is not limited to rotary refining furnace slag, reflection clinker；
The pyrogenic process dilution slag includes but is not limited to electric furnace process, reflection oven process, Vacuum cleaning method, inder pot method, salter process production
Raw dilution slag；
The ore dressing dilution slag refers mainly to the smelting slag generated during pyrogenic process smelting copper, blowing slag, refining slag, pyrogenic process dilution slag warp
Cross the milltailings generated after ore dressing dilution.
10. the application of novel light aggregate foaming agent as described in claim 1, it is characterised in that: press novel light aggregate foaming agent
Additional amount be the 5~30% of light-weight aggregate material quality, choose novel light aggregate foaming agent, novel light aggregate foaming agent passes through mixed
It closes agitating mode to be added in light-weight aggregate raw material, light-weight aggregate raw material is then made or light-weight aggregate is attached to by cladding mode
On raw material, then manufactured light-weight aggregate raw material are roasted, light-weight aggregate finished product can be obtained.
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Application publication date: 20191015 |