CN106145865B - Filter-type activated carbon prepared from steel slag for the porous sponge brick that catchments method - Google Patents

Filter-type activated carbon prepared from steel slag for the porous sponge brick that catchments method Download PDF

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Publication number
CN106145865B
CN106145865B CN201610518494.1A CN201610518494A CN106145865B CN 106145865 B CN106145865 B CN 106145865B CN 201610518494 A CN201610518494 A CN 201610518494A CN 106145865 B CN106145865 B CN 106145865B
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sponge brick
catchments
porous sponge
slag
porous
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CN106145865A (en
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郭志东
狄东贺
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Shandong University of Technology
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Shandong University of Technology
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26Silicates of the alkali metals
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02Treatment
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/02Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/08Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00Details of pavings
    • E01C11/22Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E01C11/224Surface drainage of streets
    • E01C11/225Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C5/00Pavings made of prefabricated single units
    • E01C5/04Pavings made of prefabricated single units made of bricks
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00241Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00284Materials permeable to liquids
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075Uses not provided for elsewhere in C04B2111/00 for road construction

Abstract

The present invention provides the method that filter-type activity slag prepares the porous sponge brick that catchments, and comprises the following steps:The dispensing of the porous sponge brick that catchments:10~20wt% of cement, 100~250 μm of 45~65wt% of slag perforate cenosphere of grain size, 5~15wt% of sodium metasilicate of modulus 3.2~3.5, 3~10wt% of flyash of loss on ignition 1.1%, 100~150 μm of 10~30wt% of activated carbon of polyvinyl alcohol 0.5~3.0wt% of high hydroscopic resin fiber and grain size, proportion sample is simultaneously uniformly mixed, mixture is sized mixing with 0.5~0.7 ratio of mud, add the aluminium powder cream that mixture total weight is 0.2~1.0%, aluminium powder cream hydration reaction generates bubble, form porous expansion water suction slurries, the expansion water suction slurries of preparation are stirred evenly and are poured into the die trial of sponge brick press, through striking off, compacting, the demoulding, it dries, the porous sponge brick that catchments is made.

Description

Filter-type activated carbon prepared from steel slag for the porous sponge brick that catchments method
Technical field
The present invention relates to filter-type activated carbon prepared from steel slag for the method for the porous sponge brick that catchments, belong to material technology neck.
Background technology
Due to EI Nino and La Nina Phenomenon, there is extreme variation in the weather in China, and rainfall distributed pole is uneven, south Northern drought and waterlogging are uneven, and rainfall is also extremely unequal in same area, 1 year, and water shortage has restricted expanding economy and the people Life, rationally using existing precipitation, by cell road surface, road, the effective precipitation in public leisure square rationally collect, store, It utilizes, alleviate drought and water shortage season uses water, and the thermal capacity of water is big, and can absorb heat also can heat release.
The content of the invention
Slag is common slag, and prepared from steel slag is for perforate cenosphere, containing free calcium oxide and magnesia ore deposit in slag Object generates expansion in cement mortar later stage process of setting, increases porosity, and activated carbon uses 100~150 μm of grain size, grain size Smaller specific surface area is bigger, and the activated carbon of filter-type refers to the powerful adsorption function of activated carbon, and activated carbon has adsorptivity and catalysis Performance has stronger suction to organic pollution such as benzene class chemical combination phenolic compound, oil and the oil product etc. dissolved in water Attached ability effectively removes the ability of the heavy metal and heavy metal ion in water, also has foreign odor, the peculiar smell removed in water, to thin Bacterium also has fabulous filtration, and by the use of the slag cenosphere of perforate as base-material, using sodium metasilicate as binding agent, cement is The porous sponge brick that catchments increases mechanical strength and cementation, and the resin fibre of polyvinyl alcohol high water absorption is strong water absorbent, is used Dilatant slurry reduces the density of slurries, and a face of the manufactured porous sponge brick that catchments is in dovetail channel-shaped, the porous sponge brick that catchments The moisture of absorption enters dovetail groove, is flowed into collector pipe again by the effect of gravity, the porous sponge brick that catchments is connected to one by collector pipe It rises, rainwater catchment is into collecting-tank.
Its technical solution is:Filter-type activated carbon prepared from steel slag for the method for the porous sponge brick that catchments, porous catchment by the first step The dispensing of sponge brick:10~20wt% of cement, 100~250 μm of 45~65wt% of slag perforate cenosphere of grain size, modulus 3.2~ 3.5 5~15wt% of sodium metasilicate, 3~10wt% of flyash of loss on ignition 1.1%, polyvinyl alcohol high hydroscopic resin fiber 0.5~ The sum of 100~150 μm of 10~30wt% of activated carbon of 3.0wt% and grain size, weight percent of the above components are 100%;
The preparation of second step, the porous sponge brick expansion water suction slurries that catchment:It samples by the weight percent of the first step, first will Grain size is put into for 100~250 μm of slag perforate cenospheres in feed bin, is sent into distributing device by elevator, distributing device opens slag Hole cenosphere is evenly distributed on governing belt balance, and the sodium metasilicate of modulus 3.2~3.5 is uniformly sprayed at slag and opened by spray thrower The outer surface of hole cenosphere, slag perforate cenosphere enter in inside spin drum agitation device with governing belt balance, make each Sodium metasilicate is all uniformly adhered in the outer surface of slag perforate cenosphere, and sodium metasilicate is inorganic bond, is hydrophilic, cohesive force By force, intensity is higher, acid resistance, heat-resist, and hydrophilicity does not influence caking property, and mixture is 10~20wt% of cement, grain size 100~250 μm of 45~65wt% of slag perforate cenosphere, 5~15wt% of sodium metasilicate of modulus 3.2~3.5, loss on ignitions 1.1% 3~10wt% of flyash, polyvinyl alcohol 0.5~3.0wt% of high hydroscopic resin fiber and 100~150 μm of activated carbon 10 of grain size~ 30wt%, then mixture is sized mixing with 0.5~0.7 ratio of mud, ash are mixture, be eventually adding mixture total weight for 0.2~ 1.0% aluminium powder cream, hydration reaction generation bubble form the slurries that porous expansion absorbs water, and reduce the weight of sponge brick, polyethylene Alcohol high hydroscopic resin fiber has extremely strong water imbibition, and the sponge brick compression strength after water suction is constant;
The preparation of the porous sponge brick that catchments of 3rd step, filter-type:Expansion water suction slurries prepared by second step stir evenly It pours into the die trial of sponge brick press, by 1.2~2.0:1 volume ratio is suppressed, and ratio 1.2~2.0 is the volume before compacting, than Example 1 is pressed volume, through striking off, suppress, demould, dry, is made the porous sponge brick that catchments, porous to catchment the one of sponge brick A face is in dovetail channel-shaped, and the porous moisture for catchmenting the absorption of sponge brick enters in dovetail groove, in collector pipe insertion dovetail groove, collector pipe A part of arc surface in embedded dovetail groove is openning shape, and another part arc surface is closed, and rainwater passes through porous sea of catchmenting Continuous brick collects, and into dovetail groove, is flowed into collector pipe again by the effect of gravity, collector pipe connects the single porous sponge brick that catchments It is connected together, the rainwater that collector pipe collects enters in collecting-tank.
The preparation of slag perforate cenosphere:Slag is first processed into 200~400 μm of solid microbeads of grain size, then by grain size 150~300 μm 100~200 μm of kaolin three 65~75wt% by weight percentage of glass micro mist and grain size:10~ 25wt%:20~35wt% is uniformly mixed, and the sum of three's weight percent is 100%, is put into forcing press and makes blank and dry, puts Enter 20~40min of heat preservation sintering in 1000~1500 DEG C of Si-Mo rod high temperature furnace sintering, form agglomerate, glass micro mist increases strong Degree reduces sintering temperature, and kaolin is strong binding agent, by high temperature modified sintering, containing free calcium oxide and oxidation in slag Magnesium mineral generates expansion in cement mortar later stage process of setting, increases porosity, calcium oxide hydration generation hydroxide Pozzolanic reaction can occur under the excitation of the calcium hydroxide of generation for calcium, generate low calcium gel, and the hole of hardened paste is tied Structure has improved effect, and agglomerate is crushed, and the modified slag solid microbeads of 250~350 μm of grain size is made, by 0.5~0.7 The ratio of mud is sized mixing, and by centrifugal rotation, injection forms microballon at a high speed, then through 800~950 DEG C of expansions, 1000~1500 DEG C fire, It is quickly cooled down, forms 100~250 μm of 50~100 μm of wall thickness, grain size slag perforate cenospheres.
Activated carbon uses 100~150 μm of grain size, and the smaller specific surface area of grain size is bigger, and the activated carbon of filter-type refers to activated carbon Powerful adsorption function, activated carbon has adsorptivity and catalytic performance, to the organic pollution such as benzene class hindered phenol dissolved in water Class compound, oil and oil product etc. have stronger adsorption capacity, effectively remove the heavy metal and heavy metal ion in water Ability, also have remove water in foreign odor, peculiar smell, also have fabulous filtration to bacterium.
The main ingredient of slag is silica, calcium oxide, iron oxide, dicalcium silicate, tricalcium silicate, and slag can improve slurries Mobility, compression strength, frost resistance, the contract with dry rate for reducing test block, improve the durability of test block.
Flyash is strong water absorbent, by high temperature sintering, there is higher activity.
A rainwater part for accumulation is pooled to by collector pipe in collecting-tank by the porous sponge brick that catchments, and another part penetrates into Into soil, increase soil water content, in summer high-temperature season, the heat on surface can also be transmitted to by the porous sponge brick that catchments In soil, the temperature on sponge tile floor surface is reduced, the thermal capacity of water is big, and can absorb heat also can heat release.
The present invention has the following advantages.
1st, the Materials Inorganic environment-friendly materials used in sponge brick are prepared, will not be damaged to environment, the recyclable energy of sponge brick It is used for multiple times.
2nd, it is strong water absorbent to prepare sponge brick flyash and the resin fibre of polyvinyl alcohol high water absorption, can absorb sponge brick table The moisture in face enters inside, when reaching certain amount, is dropped under the action of by gravity in collector pipe.
3rd, aluminium powder cream is added in mixture, forms the slurries of porous expansion, reduces the density of slurries.
4th, expansion is generated in cement mortar later stage process of setting containing free calcium oxide and oxidation magnesium mineral in slag, Increase porosity.
5th, activated carbon has adsorptivity and catalytic performance, is the organic pollution such as benzene class chemical combination phenol generalization to being dissolved in water Closing object, oil and oil product etc. has stronger adsorption capacity, effectively removes the energy of the heavy metal and heavy metal ion in water Power also has foreign odor, the peculiar smell removed in water, also there is good filtration to bacterium.
Description of the drawings
Fig. 1 is the axis geodesic structure schematic diagram of the sea brick of the embodiment of the present invention.
Fig. 2 is that the bottom of the sea brick of the embodiment of the present invention regards structure diagram.
Fig. 3 is the structure diagram that the monolithic sponge brick of the embodiment of the present invention is linked together by collector pipe.
Wherein 1 in figure, sponge brick 2, dovetail groove 3, collector pipe.
Specific embodiment
Embodiment.
In embodiment as shown in Figures 1 to 3, filter-type activated carbon prepared from steel slag for the porous sponge brick that catchments method, Slag is first processed into 350 μm of solid microbeads of grain size by one step, then 140 μm of kaolin of glass micro mist and grain size by 200 μm of grain size Three 65wt% by weight percentage:15wt%:20wt% is uniformly mixed, and is put into forcing press and is made blank and dry, is put into 1200 DEG C Heat preservation sintering 30min in the sintering of Si-Mo rod high temperature furnace forms agglomerate, and glass micro mist increases intensity, reduces sintering temperature, kaolinite Soil is strong binding agent, by high temperature modified sintering, displacement reaction, by high temperature modified sintering, containing free calcium oxide in slag With oxidation magnesium mineral, expansion is generated in cement mortar later stage process of setting, increases porosity, agglomerate is crushed, grain is made The modified slag solid microbeads in 200 μm of footpath, size mixing by by 0.55 ratio of mud, and by centrifugal rotation, injection forms microballon at a high speed, Again through 820 DEG C of expansions, 1250 DEG C of high-temperature firings, be quickly cooled down, it is hollow micro- to form 250 μm of 100 μm of wall thickness, grain size slag perforates Pearl.
The dispensing of second step, the porous sponge brick that catchments:Take 250 μm of cement 15wt%, grain size slag perforate cenospheres 55wt%, the sodium metasilicate 13wt% of modulus 3.5, the flyash 3.0wt% of loss on ignition 1.1% and polyvinyl alcohol high hydroscopic resin fiber 150 μm of activated carbon 12wt% of 2.0wt% and grain size.
The preparation of 3rd step, the porous sponge brick expansion water suction slurries that catchment:It samples by the weight percent of the first step, first will Grain size is put into for 250 μm of slag perforate cenospheres in feed bin, is sent into distributing device by elevator, distributing device is hollow by slag perforate Microballon is evenly distributed on governing belt balance, and the sodium metasilicate of modulus 3.5 is uniformly sprayed at slag perforate cenosphere by spray thrower Outer surface, enter inside spin drum agitation device with governing belt balance, mixture with 0.55 ratio of mud sized mixing, is added mixed The aluminium powder cream that material total weight is 0.7% is closed, hydration reaction generation bubble forms the slurries of porous expansion water suction, reduces sponge brick Weight, polyvinyl alcohol high hydroscopic resin fiber have extremely strong water imbibition, and the sponge brick compression strength after water suction is constant, filter-type Activated carbon refer to the powerful adsorption function of activated carbon, activated carbon has adsorptivity and catalytic performance, is organic to what is dissolved in water Pollutant such as benzene class chemical combination phenolic compound, oil and oil product etc. have stronger adsorption capacity, effectively remove in water The ability of heavy metal and heavy metal ion removes foreign odor, peculiar smell in water, also has good filtration to bacterium, using changing The activated carbon of property enhances the performance of activated carbon.
The preparation of the porous sponge brick that catchments of 4th step, filter-type:Expansion water suction slurries prepared by second step stir evenly It pours into the die trial of sponge brick press, by 1.6:1 volume ratio compacting, through striking off, suppressing, demoulding, drying, is made porous Catchment sponge brick 1, and in 2 shape of dovetail groove, the porous moisture for catchmenting the absorption of sponge brick 1 enters in a face of the porous sponge brick 1 that catchments In dovetail groove 2, collector pipe 3 is installed in dovetail groove 2, rainwater collects by the porous sponge brick 1 that catchments, into dovetail groove 2 It is interior, collector pipe 3 is flowed into again by the effect of gravity, and collector pipe 3 links together the single porous sponge brick 1 that catchments, and collector pipe 3 converges The rainwater of collection enters in collecting-tank, by precipitating, filtering, reuses.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc. Embodiment is imitated, every without departing from technical solution of the present invention content, the technical spirit according to type of the present invention makees above example Any simple modification, equivalent variations and remodeling, still fall within the protection domain of type technical solution of the present invention.

Claims (1)

1. filter-type activated carbon prepared from steel slag comprises the following steps for the method for the porous sponge brick that catchments:
The dispensing of the first step, the porous sponge brick that catchments:100~250 μm of 10~20wt% of cement, grain size slag perforate cenospheres 45~65wt%, 5~15wt% of sodium metasilicate of modulus 3.2~3.5,3~10wt% of flyash of loss on ignition 1.1%, polyvinyl alcohol are high 100~150 μm of 10~30wt% of activated carbon of 0.5~3.0wt% of water-absorbing resin fiber and grain size, the weight percent of the above components The sum of be 100%;
The preparation of second step, the porous sponge brick expansion water suction slurries that catchment:It is sampled by the weight percent of the first step, first by grain size It is put into for 100~250 μm of slag perforate cenospheres in feed bin, distributing device is sent by elevator, distributing device is empty by slag perforate Heart microballon is evenly distributed on governing belt balance, and the sodium metasilicate of modulus 3.2~3.5 is uniformly sprayed at slag perforate sky by spray thrower The outer surface of heart microballon, slag perforate cenosphere, which enters with governing belt balance in inside spin drum agitation device, to stir evenly, then Mixture with 0.5~0.7 ratio of mud is sized mixing, it is equal to be eventually adding the aluminium powder cream stirring that mixture total weight is 0.2~1.0% Even, aluminium powder cream hydration reaction generation bubble forms the slurries that porous expansion absorbs water;
The preparation of 3rd step, the porous sponge brick that catchments:Expansion water suction slurries prepared by second step, which stir evenly, pours into sponge brick In the die trial of press, through striking off, suppressing, demoulding, drying, the porous sponge brick that catchments is made(1), the porous sponge brick that catchments(1) A face be in dovetail groove(2)Shape, collector pipe(3)Embedded dovetail groove(2)It is interior, collector pipe(3)Embedded dovetail groove(2)Interior one Cyclotomy cambered surface is openning shape, and another part arc surface is closed, and rainwater passes through the porous sponge brick that catchments(1)Collect, enter Dovetail groove(2)It is interior, entered collector pipe by the effect of gravity(3), collector pipe(3)By the single porous sponge brick that catchments(1)It is connected to Together, collector pipe(3)The rainwater collected enters in collecting-tank.
CN201610518494.1A 2016-07-05 2016-07-05 Filter-type activated carbon prepared from steel slag for the porous sponge brick that catchments method Active CN106145865B (en)

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