CN108996987B - Based on graphene and non-ferro metals debris foamed wall slab and preparation method thereof - Google Patents

Based on graphene and non-ferro metals debris foamed wall slab and preparation method thereof Download PDF

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CN108996987B
CN108996987B CN201810758734.4A CN201810758734A CN108996987B CN 108996987 B CN108996987 B CN 108996987B CN 201810758734 A CN201810758734 A CN 201810758734A CN 108996987 B CN108996987 B CN 108996987B
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graphene
ferro metals
metals debris
wall slab
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CN108996987A (en
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黄聿新
黄昭烨
余延波
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Guangxi Xu Teng Industry Group Co Ltd
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    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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Abstract

The invention belongs to building enclosure materials for wall fields, and in particular to one kind is based on graphene and non-ferro metals debris foamed wall slab and preparation method thereof.It is of the invention based on graphene and non-ferro metals debris foamed wall slab, including major ingredient and auxiliary material, in parts by weight, major ingredient includes 70-90 parts of non-ferro metals debris;Auxiliary material includes 0.5-8 parts of graphene, 1-15 parts of vermiculite, 2-10 parts of aluminum fluoride, 3-8 parts of alumina silicate fibre, 5-15 parts of montmorillonite, 1-10 parts of clay, 5-20 parts of cosolvent, 0.1-5 parts of foaming agent, 0.1-5 parts of stabilizer.Foamed wall slab of the invention has the characteristics that light-high-strength, lightweight high tenacity, fire-proof high-temperature resistant, sound insulation, water proof anti-seepage, environmentally protective.

Description

Based on graphene and non-ferro metals debris foamed wall slab and preparation method thereof
[technical field]
The present invention relates to building enclosure materials for wall fields, and in particular to one kind is sent out based on graphene and non-ferro metals debris Steep lightweight wall plate and preparation method thereof.
[background technique]
Existing concrete aerated blocks, oscillation, light ceramsite concrete wallboard, lightweight polyethylene concrete panel Inner-outer wall wall board material same volume under it is of poor quality, pressure-proof and snap-resistent intensity is low, sound-insulating and heat-insulating poor thermal insulation property, waterproof impervious characteristic Difference, water absorption rate is high, interface is easy to crack, cement mortar batch time layer it is easy to crack it is easy to fall off, easy to aging, dangerous not environmentally, aerating When concrete and hollow brick wallboard production partition wall, there are volumes greatly, it is big to occupy space, own wt weight, needs fragmentary block It builds, surfaces of wall needs levelling with cement mortar batch time, it is also necessary to which a large amount of cement mortar makees waterproof, thermal insulation separation in interior wall face Hot sound insulation processing, working procedure is cumbersome, greatly increases construction cost, causes a large amount of artificial, material resources wastes.It is heavier What is wanted is that rubbish caused by the wall board material that the above traditional architecture uses is unable to circulation and stress recycling, cumbersome, work of not only constructing Journey involves great expense, and because of the serious problems that the multi-level construction and installation of external wall cause exterior wall service life of short duration, once Wall face heat insulation and decoration layer can not cause decoration of exterior wall emaciated face with the service life with building wall board and fall, and security risk is huge, makes It is inestimable at the loss of lives and properties.In addition, the situation that the foamed wall slab of the prior art is lower in control cost of material Under, the features such as wear-resisting, weather-proof, high temperature resistant, heat-insulation and heat-preservation, sound insulation, water proof anti-seepage, good mechanical property cannot be provided simultaneously with.
Non-ferrous metal include: aluminium, magnesium, potassium, sodium, calcium, strontium, barium, copper, lead, zinc, tin, cobalt, nickel, antimony, mercury, cadmium, bismuth, gold, Silver, platinum, ruthenium, rhodium, palladium, osmium, iridium, beryllium, lithium, rubidium, caesium, titanium, zirconium, hafnium, vanadium, niobium, tantalum, tungsten, molybdenum, gallium, indium, thallium, germanium, rhenium, lanthanum, Cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, yttrium, silicon, boron, selenium, tellurium, arsenic, thorium.Non-ferrous metal in ore Content is generally all lower, in order to obtain 1 ton of non-ferrous metal, often to exploit into hundred tons so that ten thousand tons or more of ore, generation Tailing amount is huge, and there is a problem of that processing method is more difficult.It is often various metals symbiosis in nonferrous metallic ores, it is therefore necessary to Reasonable drawing and recycling useful constituent, carry out comprehensive utilization, rationally to utilize natural resources.Many kinds of rare metals, your gold The chemical products such as category and sulfuric acid are returned during handling nonferrous metallic ores or intermediate products and slag, flue dust What receipts obtained.Large quantity of exhaust gas, waste water and waste residue are generally produced during nonferrous production, wherein the useful constituent containing there are many, Sometimes with noxious material, some non-ferrous metals also have toxicity;Therefore, during producing non-ferrous metal, it has to be noted that Comprehensive utilization and environmental protection.
Although non-ferro metals debris has good potential utility value, existing technical level can't carry out it Good utilization, and economic well-being of workers and staff is also very low.Non-ferro metals debris processing has not only seriously affected Non Ferrous Mineral Industry Development, and as the quantity of tailing is more and more, the work is getting increasingly difficult for management, and workload also has greatly increased. Many manpowers, financial resources and material resources will be spent for the processing of these non-ferro metals debris, and also cause environmental pollution, money The biggish social dangers such as source waste, security risk, land seizure.
In general, sending out radioactive element, such as uranium, thorium, radium containing other total, associations in non-ferro metals debris, these contain If the tailing of radioactive element is made building wall board and carries out using rear, can environmentally safe and human health bring potential danger Evil.
[summary of the invention]
It is an object of the invention to: for above-mentioned problem, provide a kind of with significant anti-aging, anticorrosive, heat-insulated guarantor Temperature, sound insulation, water proof anti-seepage, fire-proof high-temperature resistant, light-high-strength, lightweight high tenacity, do not crack, be environmentally protective etc. comprehensive performances in The graphene and non-ferro metals debris foamed wall slab material of one, the present invention can be recycled a large amount of non-ferrous metal tails Mine alleviates the environmental pressure of non-ferro metals debris accumulation, and production process is using green low-carbon, efficient, energy-saving, automatic The preparation method of change.
To achieve the goals above, The technical solution adopted by the invention is as follows:
One kind is based on graphene and non-ferro metals debris foamed wall slab, including major ingredient and auxiliary material, according to parts by weight Meter, major ingredient includes 70-90 parts of non-ferro metals debris;Auxiliary material include 0.5-8 parts of graphene, 1-15 parts of vermiculite, 2-10 parts of aluminum fluoride, 3-8 parts of alumina silicate fibre, 5-15 parts of montmorillonite, 1-10 parts of clay, 5-20 parts of cosolvent, 0.1-5 parts of foaming agent, stabilizer 0.1- 5 parts.
Further, described to be based on graphene and non-ferro metals debris foamed wall slab, including major ingredient and auxiliary material, according to Parts by weight meter, major ingredient include 70-90 parts of non-ferro metals debris;Auxiliary material includes 0.5-8 parts of graphene, 1-15 parts of vermiculite, is chopped 10-20 parts of carbon fiber, 2-10 parts of aluminum fluoride, 3-8 parts of alumina silicate fibre, 5-15 parts of montmorillonite, 1-20 parts of zirconium silicate, clay 1-10 Part, 0.1-5 parts of sodium tripolyphosphate, 5-20 parts of cosolvent, 0.1-5 parts of foaming agent, 0.1-5 parts of stabilizer.
Further, the non-ferro metals debris refers to magnesium mine tailing, aluminium ore tailing, lead-zinc ore tailings, gold mine tailings, copper One of mine tailing, nickel minerals tailing, cobalt ore tailing, tungsten ore tailing, tin ore tailing, molybdenum tailing, bismuth mineral tailing, antimony ore tailing Or it is several.
Further, the clay is one or more of high liquid limit soil, carclazyte, bentonite, diatomite.
Further, the fluxing agent be boron mud, it is talcum, fluorite, calcination of talc, diopside, ice crystal, boron mud, light-burned One or more of magnesia, datolite, illite.
Further, the foaming agent is one of expanded graphite, silicon carbide, tapioca, calcium carbonate, carbon dust or several Kind.
Further, the stabilizer is manganese dioxide and/or cobalt oxide.
Further, the length of the chopped carbon fiber is 6-15mm.
Further, the non-ferro metals debris reuses after handling as follows: trifluoracetic acid being added in seawater, trifluoro Acetic acid additional amount is the 0.5-1% of seawater weight, is uniformly mixed, obtains mixed liquor;Non-ferro metals debris is added in mixed liquor 10-20min is impregnated, is then taken out non-ferro metals debris dry after cleaning.
The preparation method based on graphene Yu non-ferro metals debris foamed wall slab uses dry process, packet Include following steps:
S1, vertical powder-grinding: first weigh non-ferro metals debris weight in good formula 40% is pre-mixed with auxiliary material, is passed through After batch mixer mixing, it is transferred to roll-over in raw material and is homogenized at premix, then with remaining 60% non-ferro metals debris in cross section After upper uniformly proportion, be put into vertical mill Vertical Mill together, obtain fineness be 300 mesh full by Vertical Mill raw material powder, be transferred to excessively Change storehouse, granulating raw material is obtained by granulating system granulation, fluidisation, dry, screening, is delivered to raw material finished product storage warehouse;Wherein, it mixes Material machine incorporation time is 60-200 minutes, and Vertical Mill incorporation time is 100-400 minutes;
S3, cloth: granulating raw material is subjected to automatic drying cloth, is put into roller kilns or tunnel oven, through 1000-1300 DEG C, after 30-200 minutes high temperature firings, it is taken out by kiln cooling, foamed wall slab crude product is made;
S4, foamed wall slab crude product pass through excision forming, obtain and are foamed based on graphene and non-ferro metals debris Lightweight wall plate finished product.
The preparation method based on graphene Yu non-ferro metals debris foamed wall slab, is prepared using wet process, packet Include following steps:
S1, raw material preparation: by the parts by weight weighing of each raw material, mixing, with ball mill mixing 2~10h of ball milling, fineness reaches Arrived 200 meshes full by mixed slurry, then by mixed slurry be put into storage pool mix be homogenized;
S2, mist projection granulating: being dried to granulation material for the spray-dried tower of the mixed slurry prepared in S1, obtains being granulated former Material, is delivered to raw material finished product storage warehouse;
S3, cloth: granulating raw material is subjected to automatic drying cloth, is put into roller kilns or tunnel oven and is sintered, is burnt Knot process is carried out by the way of segmentation heat preservation, sintering process are as follows: -900 DEG C of room temperature, heating rate is 30 DEG C/min, in 900 DEG C Keep the temperature 10-20min;900 DEG C -1200 DEG C, heating rate is 10 DEG C/min, in 1200 DEG C of heat preservation 0.5-2h;1200℃-1300 DEG C, heating rate is 2-3 DEG C/min, is cooled down after 1300 DEG C of heat preservation 20-50min, and rate of temperature fall is 3-8 DEG C/min, by kiln Furnace cooling is taken out, and foamed wall slab crude product is made;
S4, foamed wall slab crude product pass through excision forming, obtain and are foamed based on graphene and non-ferro metals debris Lightweight wall plate finished product.
Further, described to be based on graphene and non-ferro metals debris foamed wall slab product specification are as follows: long: 2400- 3000mm, width: 600-1200mm, thickness: 80-120mm, density 200-800Kg/m3
The beneficial effects of the present invention are:
1, graphene is a kind of two dimensional crystal, is arranged by carbon atom according to hexagon, is connected with each other, forms a carbon Molecule, structure are highly stable;As the amount of carbon atom connected is increasing, this two-dimensional carbon molecules plane constantly expands Greatly, molecule also constantly becomes larger.The thickness of only one carbon atom of single-layer graphene, i.e., 0.335 nanometer are equivalent to a hair The thickness of 20 a ten thousandths nearly has 1,500,000 layers or so of graphene in the graphite of 1 millimeters thick.Graphene is known most thin A kind of two-dimensional material, and have many advantages, such as high specific surface area and intensity.
The present invention adds graphene using various non-ferro metals debris as substrate, can significantly improve the hardness of wallboard, resistance to height Mild flame retardant property;The deadly defect that organic material is afraid of open fire, deformation easy to aging is overcome, the fire line of inorganic material is improved Can, and the defect of inorganic material poor compatibility is compensated for, while doing substrate using various non-ferro metals debris, be conducive to ecology Environmental protection effectively improves comprehensive utilization of resources and turns waste into wealth, and largely saves production cost.
Non-ferro metals debris is generally made of contained multi mineral in ore, gangue and country rock, and main chemical compositions are SiO2, CaO, MgO, Al2O3, Fe2O3Deng.The aluminum fluoride that the present invention is added, can be with SiO therein2And Al2O3Reaction is formed former The rock-steady structure of son arrangement high-sequential, intensity is high, and toughness and tensile strength are good, cooperates graphite alkene reaction, can be better Improve the mechanical property of wallboard.
By the present invention in that using tapioca as foaming agent, and combined with stabilizer, tapioca homogeneous grain diameter is in Chondritic, carbohydrate breakdown generates stomata when sintering, and realizing has to wallboard is integrally-built during pore structure and foaming Effect regulation, the pore structure partial size formed it into is fine and smooth, is evenly distributed, and wallboard shape is regular, orderly aligned, hands over so that wallboard has Join reticular structure, improves wallboard strength and toughness to reach, and mitigate the purpose of wallboard weight.
Non-ferro metals debris appearance is changed in addition, graphene is added and passes through to react in the high temperature environment with chopped carbon fiber The property in face, it is easier to other substance association reactions, reduce whole foamable reaction temperature, and in foaming process and other Raw material of substance combines rapidly, expands the foaming aperture size of non-ferro metals debris, but foaming aperture can not be excessive, will cause The wallboard outside face prepared is uneven, aperture is uneven, makes the reduction of material overall performance, therefore cooperate suitable foaming agent Using particularly important;Alumina silicate fibre, montmorillonite, zirconium silicate, clay, trimerization are added while adding graphene, carbon fiber After sodium phosphate carries out Vertical Mill, the composition of microelement in non-ferro metals debris is changed in hot environment, improves non-ferrous metal tail The inoxidizability of mine itself, the stabilizer of addition can guarantee the stability in reaction between each ion, can slow down reaction, protect Reaction balance is held, in addition after each component fusion, during temperature reduces, cracking phenomena easily occurs in plate matrix, passes through addition Stabilizer prevent phase transformation from occurring and then avoid MATRIX CRACKING caused by volume expansion so that face ratio outside foamed wall slab It is flatter, reduce six plate thicknesses for being further cut into finished product;The fluxing agent of addition can be quick in hot stage Carry out react, the gap that is formed during foaming is fine and smooth uniformly, all uniform smooth in plane of structure, vertical face, is not in large area Uneven phenomenon, will not be intermolecular to be kept completely separate as common raw material is under high temperature action, arbitrarily flows, so that one is whole The substance disunity of each of a product place filling.The present invention is prepared by the compounding of each component and in conjunction with preparation process The foamed wall slab arrived has more excellent anticorrosive, anti-aging, insulation, sound insulation, fire prevention, waterproof, impervious, anti- The advantages that shake, cracking resistance, high-strength light, green safe environmental protection.
2, it is total, association harmful substance to have passed through removing before preparing foamed wall slab for non-ferro metals debris of the invention It handles, the seawater in inorganic agent is a kind of extremely complex multicomponent aqueous solution, and various elements are all with certain physics in seawater Chemical form exists, and is dissolved with various salinities, gas componant, nutrient, microelement, organic substance, boric acid etc., and three Fluorine acetic acid can react with rare earth, and seawater can cooperate activation rare earth to be allowed to be easier to leach, the two cooperation, non-ferrous metal tail Mine after treatment, can remove most rare earth and poisonous metal, reduce the radiation of radioactive element, ensure that environment Safety and human health realize the real environmentally protective purpose of construction material.
Through overtesting, sea water mixing liquid of the invention and non-ferro metals debris are that 3:1 carries out first time processing with mass ratio Afterwards, the content of rare earth reaches 0.30g/L in sea water mixing liquid;Continue with sea water mixing liquid and new non-ferro metals debris with quality Than carrying out second after handling for 3:1, the content of rare earth reaches 0.55g/L in sea water mixing liquid;Continue with sea water mixing liquid with New non-ferro metals debris is after 3:1 carries out third time processing with mass ratio, and the content of rare earth reaches in sea water mixing liquid 0.73g/L.It can be seen that the sea water mixing liquid that the present invention configures can effectively leach the dilute of association in non-ferro metals debris Soil.Sea water mixing liquid energy repetitive cycling uses simultaneously, when rare earth metal content Gao Shike therein extracts rare earth metal, no It will cause secondary pollution.
3, in application graphene produced by the present invention and non-ferro metals debris Foam light partition board, because of this wallboard volume It is small, occupy that space is few, own wt is light, does not need wet work and fragmentary building construction, it is often more important that do not need to make With a large amount of sandstone cement;Exterior wall does not need to increase cement mortar batch time screed-coat, does not need again secondary construction and installation heat preservation yet Thermal insulation layer;Working procedure is simple and convenient, greatly reduces building wall board construction cost cost.
The collection that this wallboard product can be built directly as traditional architecture, assembled architecture inside and outside wall board partition material At assembling installation, building heat preservation heat-insulating decorative integrative installation technology effect can be met;Especially built in assembled architecture During construction and installation, it is greatly improved the assembly rate of building course using inside and outside wall board product of the invention, shortens entirety Construction period largely reduces artificial, saving material, saves construction construction cost, and synthesis improves overall construction safety matter Amount.
[specific embodiment]
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below Embodiment is closed, the present invention is further explained.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, It is not intended to limit the present invention.
Embodiment 1
One kind is based on graphene and non-ferro metals debris foamed wall slab, including major ingredient and auxiliary material, according to parts by weight, Major ingredient includes 82 parts of non-ferro metals debris;Auxiliary material include 2 parts of graphene, 8 parts of vermiculite, 15 parts of chopped carbon fiber, 7 parts of aluminum fluoride, 6 parts of alumina silicate fibre, 10 parts of montmorillonite, 10 parts of zirconium silicate, 5 parts of clay, 2 parts of sodium tripolyphosphate, 10 parts of cosolvent, foaming agent 2 Part, 2 parts of stabilizer.
The non-ferro metals debris refers to magnesium mine tailing, aluminium ore tailing and tungsten ore tailing.
The clay is high liquid limit soil and diatomite.
The fluxing agent is ice crystal and datolite.
The foaming agent is tapioca and carbon dust.
The stabilizer is manganese dioxide.
The length of the chopped carbon fiber is 6-15mm.
The non-ferro metals debris reuses after handling as follows: trifluoracetic acid being added in seawater, trifluoracetic acid is added Amount is the 0.5-1% of seawater weight, is uniformly mixed, obtains mixed liquor;Non-ferro metals debris is added in mixed liquor and impregnates 10- Then 20min takes out non-ferro metals debris dry after cleaning.
Described dry process and wet process can be used to prepare based on graphene and non-ferro metals debris foamed wall slab.
Described uses dry process based on graphene and non-ferro metals debris foamed wall slab, includes the following steps:
S1, vertical powder-grinding: first weigh non-ferro metals debris weight in good formula 40% is pre-mixed with auxiliary material, is passed through After batch mixer mixing, it is transferred to roll-over in raw material and is homogenized at premix, then with remaining 60% non-ferro metals debris in cross section After upper uniformly proportion, be put into vertical mill Vertical Mill together, obtain fineness be 300 mesh full by Vertical Mill raw material powder, be transferred to excessively Change storehouse, granulating raw material is obtained by granulating system granulation, fluidisation, dry, screening, is delivered to raw material finished product storage warehouse;Wherein, it mixes Material machine incorporation time is 60-200 minutes, and Vertical Mill incorporation time is 100-400 minutes;
S3, cloth: granulating raw material is subjected to automatic drying cloth, is put into roller kilns or tunnel oven, through 1000-1300 DEG C, after 30-200 minutes high temperature firings, it is taken out by kiln cooling, foamed wall slab crude product is made;
S4, foamed wall slab crude product pass through excision forming, obtain and are foamed based on graphene and non-ferro metals debris Lightweight wall plate finished product.
Described is prepared with non-ferro metals debris foamed wall slab using wet process based on graphene, is included the following steps:
S1, raw material preparation: by the parts by weight weighing of each raw material, mixing, with ball mill mixing 2~10h of ball milling, fineness reaches Arrived 200 meshes full by mixed slurry, then by mixed slurry be put into storage pool mix be homogenized;
S2, mist projection granulating: being dried to granulation material for the spray-dried tower of the mixed slurry prepared in S1, obtains being granulated former Material, is delivered to raw material finished product storage warehouse;
S3, cloth: granulating raw material is subjected to automatic drying cloth, is put into roller kilns or tunnel oven and is sintered, is burnt Knot process is carried out by the way of segmentation heat preservation, sintering process are as follows: -900 DEG C of room temperature, heating rate is 30 DEG C/min, in 900 DEG C Keep the temperature 10-20min;900 DEG C -1200 DEG C, heating rate is 10 DEG C/min, in 1200 DEG C of heat preservation 0.5-2h;1200℃-1300 DEG C, heating rate is 2-3 DEG C/min, is cooled down after 1300 DEG C of heat preservation 20-50min, and rate of temperature fall is 3-8 DEG C/min, by kiln Furnace cooling is taken out, and foamed wall slab crude product is made;
S4, foamed wall slab crude product pass through excision forming, obtain and are foamed based on graphene and non-ferro metals debris Lightweight wall plate finished product.
The wallboard trimmed size: long: 2600mm, width: 1000mm, thickness: 100mm.
Embodiment 2
One kind is based on graphene and non-ferro metals debris foamed wall slab, including major ingredient and auxiliary material, according to parts by weight, Major ingredient includes 80 parts of non-ferro metals debris;Auxiliary material include 1 part of graphene, 10 parts of vermiculite, 13 parts of chopped carbon fiber, 4 parts of aluminum fluoride, 4 parts of alumina silicate fibre, 7 parts of montmorillonite, 5 parts of zirconium silicate, 4 parts of clay, 2 parts of sodium tripolyphosphate, 15 parts of cosolvent, 2 parts of foaming agent, 2 parts of stabilizer.
The non-ferro metals debris refers to gold mine tailings, nickel minerals tailing and cobalt ore tailing.
The clay is carclazyte and bentonite.
The fluxing agent is boron mud and light calcined magnesia.
The foaming agent is para arrowroot and calcium carbonate.
The stabilizer is cobalt oxide.
The processing of non-ferro metals debris and the preparation method of foamed wall slab are same as Example 1.
The wallboard trimmed size: long: 2400-3000mm, width: 600-1200mm, thickness: 80-120mm.
Embodiment 3
One kind is based on graphene and non-ferro metals debris foamed wall slab, including major ingredient and auxiliary material, according to parts by weight Meter, major ingredient includes 85 parts of non-ferro metals debris;Auxiliary material includes 7 parts of graphene, 13 parts of vermiculite, 18 parts of chopped carbon fiber, aluminum fluoride 8 Part, 7 parts of alumina silicate fibre, 13 parts of montmorillonite, 17 parts of zirconium silicate, 8 parts of clay, 4 parts of sodium tripolyphosphate, 7 parts of cosolvent, foaming agent 4 parts, 3 parts of stabilizer.
The non-ferro metals debris refers to magnesium mine tailing, aluminium ore tailing and tin ore tailing.
The clay is high liquid limit soil.
The fluxing agent is talcum stone, diopside and illite.
The foaming agent is tapioca.
The stabilizer is manganese dioxide and cobalt oxide.
The processing of non-ferro metals debris and the preparation method of foamed wall slab are same as Example 1.
The wallboard trimmed size: long: 2500mm, width: 1100mm, thickness: 90mm.
Embodiment 4
One kind is based on graphene and non-ferro metals debris foamed wall slab, including major ingredient and auxiliary material, according to parts by weight, Major ingredient includes 75 parts of non-ferro metals debris;Auxiliary material include 1 part of graphene, 6 parts of vermiculite, 12 parts of chopped carbon fiber, 3 parts of aluminum fluoride, 4 parts of alumina silicate fibre, 7 parts of montmorillonite, 3 parts of zirconium silicate, 4 parts of clay, 1 part of sodium tripolyphosphate, 9 parts of cosolvent, 1 part of foaming agent, 1 part of stabilizer.
The non-ferro metals debris refers to aluminium ore tailing and bismuth mineral tailing.
The clay is carclazyte.
The fluxing agent is talcum, fluorite and illite.
The foaming agent is expanded graphite and silicon carbide.
The stabilizer is manganese dioxide.
The processing of non-ferro metals debris and the preparation method of foamed wall slab are same as Example 1.
The wallboard trimmed size: long: 2800mm, width: 800mm, thickness: 90mm.
Embodiment 5
One kind is based on graphene and non-ferro metals debris foamed wall slab, including major ingredient and auxiliary material, according to parts by weight Meter, major ingredient includes 71 parts of non-ferro metals debris;Auxiliary material includes 0.9 part of graphene, 5 parts of vermiculite, 11 parts of chopped carbon fiber, aluminum fluoride 3 parts, 5 parts of alumina silicate fibre, 6 parts of montmorillonite, 3 parts of zirconium silicate, 2 parts of clay, 1 part of sodium tripolyphosphate, 6 parts of cosolvent, foaming agent 0.8 part, 0.9 part of stabilizer.
The non-ferro metals debris refers to magnesium mine tailing.
The clay is diatomite.
The fluxing agent is diopside.
The foaming agent is expanded graphite and carbon dust.
The stabilizer is manganese dioxide.
The processing of non-ferro metals debris and the preparation method of foamed wall slab are same as Example 1.
The wallboard trimmed size: long: 2700mm, width: 1100mm, thickness: 110mm.
Embodiment 6
One kind is based on graphene and non-ferro metals debris foamed wall slab, including major ingredient and auxiliary material, according to parts by weight Meter, major ingredient includes 88 parts of non-ferro metals debris;Auxiliary material includes 7.5 parts of graphene, 9 parts of vermiculite, 9 parts of aluminum fluoride, alumina silicate fibre 7 Part, 13 parts of montmorillonite, 17 parts of zirconium silicate, 8 parts of clay, 4 parts of sodium tripolyphosphate, 8 parts of cosolvent, 4 parts of foaming agent, 4 parts of stabilizer.
The non-ferro metals debris refers to aluminium ore tailing.
The clay is high liquid limit soil and bentonite.
The fluxing agent is fluorite and diopside.
The foaming agent is silicon carbide and calcium carbonate.
The stabilizer is cobalt oxide.
The processing of non-ferro metals debris and the preparation method of foamed wall slab are same as Example 1.
The wallboard trimmed size: long: 2900mm, width: 700mm, thickness: 90mm.
Embodiment 7
One kind is based on graphene and non-ferro metals debris foamed wall slab, including major ingredient and auxiliary material, according to parts by weight Meter, major ingredient includes 78 parts of non-ferro metals debris;Auxiliary material includes 6 parts of graphene, 6 parts of aluminum fluoride, 7 parts of alumina silicate fibre, montmorillonite 11 parts, 17 parts of zirconium silicate, 8 parts of clay, 12 parts of cosolvent, 3 parts of foaming agent, 3 parts of stabilizer.
The non-ferro metals debris refers to magnesium mine tailing, aluminium ore tailing, bismuth mineral tailing and antimony ore tailing.
The clay is high liquid limit soil and carclazyte.
The fluxing agent is diopside.
The foaming agent is silicon carbide.
The stabilizer is manganese dioxide.
The processing of non-ferro metals debris and the preparation method of foamed wall slab are same as Example 1.
The wallboard trimmed size: long: 2800mm, width: 900mm, thickness: 100mm.
Embodiment 8
One kind is based on graphene and non-ferro metals debris foamed wall slab, including major ingredient and auxiliary material, according to parts by weight Meter, major ingredient includes 70 parts of non-ferro metals debris;Auxiliary material includes 0.5 part of graphene, 1 part of vermiculite, 2 parts of aluminum fluoride, alumina silicate fibre 3 Part, 5 parts of montmorillonite, 1 part of clay, 5 parts of cosolvent, 0.1 part of foaming agent, 0.1 part of stabilizer.
The non-ferro metals debris refers to magnesium mine tailing, aluminium ore tailing, lead-zinc ore tailings and copper mining tailing.
The clay is high liquid limit soil.
The fluxing agent is talcum and diopside.
The foaming agent is tapioca and expanded graphite.
The stabilizer is manganese dioxide and cobalt oxide.
The processing of non-ferro metals debris and the preparation method of foamed wall slab are same as Example 1.
The wallboard trimmed size: long: 2400mm, width: 1200mm, thickness: 80mm.
Embodiment 9
One kind is based on graphene and non-ferro metals debris foamed wall slab, including major ingredient and auxiliary material, according to parts by weight Meter, major ingredient includes 70-90 parts of non-ferro metals debris;Auxiliary material includes 8 parts of graphene, 15 parts of vermiculite, 10 parts of aluminum fluoride, aluminium silicate fiber Tie up 8 parts, 15 parts of montmorillonite, 10 parts of clay, 20 parts of cosolvent, 5 parts of foaming agent, 5 parts of stabilizer.
The non-ferro metals debris refers to magnesium mine tailing, aluminium ore tailing and lead-zinc ore tailings.
The fluxing agent is datolite and illite.
The foaming agent is expanded graphite.
The stabilizer is manganese dioxide.
The processing of non-ferro metals debris and the preparation method of foamed wall slab are same as Example 1.
The wallboard trimmed size: long: 3000mm, width: 600mm, thickness: 120mm.
Testing inspection:
1, the foamed wall slab that 1-9 of the embodiment of the present invention is prepared;
2, comparative example 1: the cement foaming lightweight partition plate of market purchase;
3, comparative example 2: it is substantially the same manner as Example 1, the difference is that: do not add aluminum fluoride;
4, comparative example 3: it is substantially the same manner as Example 1, the difference is that: do not add aluminum fluoride and chopped carbon fiber;
5, comparative example 4: it is substantially the same manner as Example 1, the difference is that: the non-ferro metals debris is mixed without seawater Close liquid processing with regard to directly carry out using.
The above each group foamed wall slab is passed through to the test of physical and mechanical properties, the specific method is as follows, test result It is shown in Table 1.
One, quantitative measurement:
This test takes specification for the foamed wall slab of the obtained standard of 40mm × 40mm × 160mm mold molding, and one Three samples of secondary molding, size of sample after molding are 40mm × 40mm × 160mm.After sample is demoulded, and by a series of Processing obtain standard specimen.
(1) bulk density: foamed wall slab sample is placed in electric drying oven with forced convection, is to slowly warm up to 40 ± 5 DEG C, After weighed foamed wall slab sample mass change rate is less than 0.2% twice in 3h, sample is moved to cooling in drier To room temperature, with the oven dry weight G0 of electronic balance weighing sample, unit g is accurate to 0.1g.
The bulk density of sample is calculated as follows, and is accurate to 1kg/m3;
In formula, ρ-sample density, units/kg/m3;The absolute dry mass of G0- sample, units/kg.
(2) water absorption rate: being measured with the foamed wall slab sample of above-mentioned test volume density, and quantity is three.It will The foamed wall slab sample for being dried to absolute dry mass is holded up by width direction in the water for being put into 20 ± 5 DEG C or so, and test specimen is away from week Interval is not less than 25mm between side and test specimen, and the water surface should be higher by after sample upper end 25mm, 2h and take out sample from water, and stand up On the towel of squeezing, after draining 10min, the residual moisture of specimen surface absorption is blotted with sponge.The each surface of sample After at least absorbing water twice, its wet weight G1 is weighed immediately, is accurate to 0.1g.
The water absorption rate of sample is calculated as follows, and is accurate to 0.1%.
In formula, w- inhales the water rate of sample, unit %;The wet quality of G1- sample, unit g;The absolute dry mass of G0- sample, it is single Position g.
(3) radionuclide is limited the quantity:
External Exposure Index (internal exposure index) refers to Natural Radionuclides of Building Materials radium-226 Specific radioactivity, divided by as defined in this standard limit the quantity obtained by quotient.
--- External Exposure Index;
--- the specific radioactivity of Natural Radionuclides of Building Materials radium-226, unit are Becquerel/kilogram (Bq kg-1);
200 --- in only considering under radiation situation.Radionuclide radium-226 puts in construction material as defined in this standard Penetrating property specific activity limitation, unit are Becquerel/kilogram (Bqkg-1).
Outreach services (external exposure index) refer to Natural Radionuclides of Building Materials radium- 226, the specific radioactivity of thorium -232 and kalium-40 respectively divided by its respectively individualism when this standard regulation limitation obtained by quotient The sum of.
--- Outreach services:
--- it is respectively the specific radioactivity of Natural Radionuclides of Building Materials radium-226, thorium -232 and kalium-40, Unit is Becquerel/kilogram (Bqkg-1);
370,260,4200 --- it is respectively in the case of only considering external exposure, naturally to be put in construction material as defined in this standard Penetrating property nucleic radium-226, thorium -232 and the kalium-40 limitation as defined in this standard in its respectively individualism, unit are Becquerel/thousand Gram (Bqkg-1).
Specific radioactivity (specific activity) refers to certain nuclide radiation quality activity in substance divided by the object Quotient obtained by the quality of matter.
Expression formula are as follows: C=A/m
In formula: C --- specific radioactivity, unit are Becquerel/kilogram (Bqkg-1);A --- nuclide radiation quality activity, Unit is Becquerel (Bq);The quality of m --- substance, unit are kilogram (kg).
Two, Mechanics Performance Testing
This test takes specification for the foamed wall slab of the obtained standard of 40mm × 40mm × 160mm mold molding, and one Three samples of secondary molding, sample obtain standard sample after demoulding, by a series of processing.
(1) in the center in specimen length direction, the width of sample upper and lower surface, thickness width flexural strength: are measured The arithmetic mean of instantaneous value for taking measured value twice, is accurate to 0.5mm.In the center in specimen length direction, sample two sides are measured Thickness, thickness takes the arithmetic mean of instantaneous value of measured value twice, is accurate to 0.1mm.Adjusting distance between two support roll shafts is Sample is symmetrically placed on the bearing roll shaft of Intensity of Breaking Tester by 100mm, opens power supply, starts Intensity of Breaking Tester, is adjusted and is applied Load rate makes roll shaft decrease speed (10 ± 1) mm/min that pressurizes.Until sample fractures, the maximum for recording sample at this time is broken Bad load p is accurate to 1N.Every group three, sample, the arithmetic mean of instantaneous value of the flexural strength value of 3 test specimens is calculated, to indicate the group The flexural strength of sample, is accurate to 0.01MPa.The flexural strength R of sample is calculated as follows, and is accurate to 0.01MPa:
In formula,
R: the flexural strength of sample, units MPa;
P: the breaking load of sample, unit N;
L: undersetting roll shaft center spacing, unit mm;
B: specimen width, unit mm;
H: sample thickness, unit mm.
(2) compression strength: in upper and lower two compression face of sample away from measuring length and width, length with straight steel ruler at the 10mm of side It is the arithmetic mean of instantaneous value of four measured values with width, is accurate to 1mm.Straight steel ruler is used in the middle part of two corresponding side surfaces of sample Thickness is measured, thickness takes the arithmetic mean of instantaneous value of two measured values, is accurate to 1mm.By flexural strength test in 6 pieces of half blocks leaving Test specimen is individually placed on the bearing plate of hydraulic pressure testing machine, and sample center and hydraulic pressure is made to test the center of machine bearing plate It is overlapped.Power supply is opened, oil pump is started, increase sample, when top board is soon contacted with sample, slows down the speed of sample rising Degree, is conveniently adjusted the balance of sample on pedestal, contacts sample compression face as far as possible with top board uniformly.Then with (10 ± 1) mm/ Min speed pressurizes to sample, until test specimen destroys.The arithmetic mean of instantaneous value of the compression strength value of 6 pieces of half block test specimens is calculated, to indicate The compression strength of this group of sample, is accurate to 0.01MPa.Test specimen compression strength σ is calculated as follows, and is accurate to 0.01MPa:
In formula, σ: compression strength, units MPa;P: breaking load, unit N;S: test specimen compression area, unit mm2
(3) Determination of conductive coefficients: the size of test sample is 200mm × 200mm × 10mm.The measuring method of thermal coefficient It is carried out according to GB/T10294-2008 " Technology of Steady State Thermal Resistance of Thermal Insulating Material and in relation to the measurement of characteristic " method, Measured Results of Thermal Conductivity result is The average value of two test results is accurate to 0.001W/ (mK).
Table 1
From the data in table 1, it can be seen that the bubble lightweight wall plate that inventive formulation composition obtains after being combined with proportion is after tested, burning It is distinguished in grade little;Lightweight wall plate bulk density of the invention is 200-560kg/m3, compression strength is greater than 8MPa, anti-to roll over by force Degree is greater than 3.9MPa, and conduction heat transfer coefficient is less than 0.12W/m DEG C, and A1 grades of combustion rating, oise insulation factor is greater than 43dB, and water absorption rate is less than 0.1%, it is more excellent than comparative example 1 on physical and mechanical properties.
From embodiment 1 in terms of comparative example 2, the data of comparative example 3, the aluminum fluoride that the present invention is added is to foamed wall slab Compression strength, flexural strength are affected, and aluminum fluoride cooperates the use of chopped carbon fiber, can significantly improve compression strength and resist Intensity is rolled over, while the two also has large effect to the thermal coefficient of wallboard.Chopped carbon fiber therein is close to the volume of plate Degree is affected, and can effectively mitigate panel weight.
From the data comparison of embodiment 1 and comparative example 4 it is found that the radionuclide of the foamed wall slab of embodiment 1 limits Amount is obviously smaller than comparative example 4, illustrates to reuse after the present invention is handled non-ferro metals debris using sea water mixing liquid, can To reduce External Exposure Index well and outer according to index, it can be effectively reduced Natural Radionuclides of Building Materials, guarantee plate The Environmental Safety of material.And passes through sea water mixing liquid treated that non-ferro metals debris carries out using other performance indicator bases again This is constant, illustrates that non-ferro metals debris will not influence foamed wall slab obtained after using sea water mixing liquid to handle Other performances.
In addition it gives the wallboard that embodiment 1 is prepared to coherent detection center to detect, the result and data of detection It is shown in Table 2:
Table 2
As shown in Table 2, the wallboard produced using the technical solution of the application meets national construction engineering quality prison Superintend and direct inspection center BETC-JN1-2017-00003, national building engineering quality supervision inspection center BETC-JN1-2017- 00004, the standard of national building engineering quality supervision inspection center BETC-JN1-2017-00004.Embodiment 2-9 is after testing Also meet above-mentioned standard, just do not enumerate one by one.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously Limitation of the scope of the invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art, Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention It encloses.Therefore, protection scope of the present invention should be determined by the appended claims.

Claims (8)

1. one kind is based on graphene and non-ferro metals debris foamed wall slab, it is characterised in that: including major ingredient and auxiliary material, according to Parts by weight meter, major ingredient include 70-90 parts of non-ferro metals debris;Auxiliary material includes 0.5-8 parts of graphene, 1-15 parts of vermiculite, fluorination 2-10 parts of aluminium, 3-8 parts of alumina silicate fibre, 5-15 parts of montmorillonite, 1-10 parts of clay, 5-20 parts of fluxing agent, 0.1-5 parts of foaming agent, 0.1-5 parts of stabilizer;
The non-ferro metals debris reuses after handling as follows: trifluoracetic acid being added in seawater, trifluoracetic acid additional amount is The 0.5-1% of seawater weight is uniformly mixed, obtains mixed liquor;Non-ferro metals debris is added in mixed liquor and impregnates 10-20min, Then non-ferro metals debris is taken out dry after cleaning.
2. one kind as described in claim 1 is based on graphene and non-ferro metals debris foamed wall slab, it is characterised in that: institute It states non-ferro metals debris and refers to magnesium mine tailing, aluminium ore tailing, lead-zinc ore tailings, gold mine tailings, copper mining tailing, nickel minerals tailing, cobalt One or more of mine tailing, tungsten ore tailing, tin ore tailing, molybdenum tailing, bismuth mineral tailing, antimony ore tailing.
3. one kind as described in claim 1 is based on graphene and non-ferro metals debris foamed wall slab, it is characterised in that: institute Stating clay is one or more of high liquid limit soil, carclazyte, bentonite, diatomite.
4. one kind as described in claim 1 is based on graphene and non-ferro metals debris foamed wall slab, it is characterised in that: institute Stating fluxing agent is one or more of talcum, fluorite, calcination of talc, diopside, illite.
5. one kind as described in claim 1 is based on graphene and non-ferro metals debris foamed wall slab, it is characterised in that: institute Stating foaming agent is one or more of tapioca, expanded graphite, silicon carbide, calcium carbonate, carbon dust.
6. one kind as described in claim 1 is based on graphene and non-ferro metals debris foamed wall slab, it is characterised in that: institute Stating stabilizer is manganese dioxide and/or cobalt oxide.
7. a kind of preparation side described in any one of claims 1-6 based on graphene Yu non-ferro metals debris foamed wall slab Method, which is characterized in that use dry process, include the following steps:
S1, vertical powder-grinding: first weigh non-ferro metals debris weight in good formula 40% is pre-mixed with auxiliary material, by mixing After machine mixing, it is equal on cross section at premix, then with remaining 60% non-ferro metals debris to be transferred to roll-over homogenizing in raw material After even proportion, be put into vertical mill Vertical Mill together, obtain fineness be 300 mesh full by Vertical Mill raw material powder, be transferred to excessive homogenizing bin, Granulating raw material is obtained by granulating system granulation, fluidisation, dry, screening, is delivered to raw material finished product storage warehouse;Wherein, batch mixer Incorporation time is 60-200 minutes, and Vertical Mill incorporation time is 100-400 minutes;
S3, cloth: carrying out automatic drying cloth for granulating raw material, be put into roller kilns or tunnel oven, through 1000-1300 DEG C, After 30-200 minutes high temperature firings, it is taken out by kiln cooling, foamed wall slab crude product is made;
S4, foamed wall slab crude product pass through excision forming, obtain based on graphene and non-ferro metals debris foamed light Wallboard finished product.
8. a kind of preparation side described in any one of claims 1-6 based on graphene Yu non-ferro metals debris foamed wall slab Method, which is characterized in that prepared, included the following steps: using wet process
S1, raw material preparation: by the parts by weight weighing of each raw material, mixing, with ball mill mixing ball milling 2-10h, fineness reached 200 meshes full by mixed slurry, then by mixed slurry be put into storage pool mix be homogenized;
S2, mist projection granulating: being dried to granulation material for the spray-dried tower of the mixed slurry prepared in S1, obtain granulating raw material, defeated It send to raw material finished product storage warehouse;
S3, cloth: carrying out automatic drying cloth for granulating raw material, be put into roller kilns or tunnel oven and be sintered, sintered The mode of Cheng Caiyong segmentation heat preservation carries out, sintering process are as follows: -900 DEG C of room temperature, heating rate is 30 DEG C/min, is kept the temperature in 900 DEG C 10-20min;900 DEG C -1200 DEG C, heating rate is 10 DEG C/min, in 1200 DEG C of heat preservation 0.5-2h;It 1200 DEG C -1300 DEG C, rises Warm rate is 2-3 DEG C/min, is cooled down after 1300 DEG C of heat preservation 20-50min, and rate of temperature fall is 3-8 DEG C/min, cooling by kiln It is taken out, foamed wall slab crude product is made;
S4, foamed wall slab crude product pass through excision forming, obtain based on graphene and non-ferro metals debris foamed light Wallboard finished product.
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