CN104761227A - Granite-imitation wall body material and preparation method thereof - Google Patents
Granite-imitation wall body material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a granite-imitation wall body material and a preparation method thereof. The granite-imitation wall body material is prepared from following raw materials, by weight: 50-80 parts of phosphogypsum, 6-16 parts of cement, 1-2 parts of fibers, 20-30 parts of yellow phosphorus furnace slag and 2-10 parts of quick lime. In the invention, by means of the phosphogypsum, the yellow phosphorus furnace slag and the quick lime as raw materials for preparing the granite-imitation wall body material, a problem that the waste phosphogypsum is stacked just like mountains can be solved. The invention has an important significance on environment protection and sustainable development. The wall body material is light in weight, is good in water and fire resistance, is high in compressive strength and is strong in weather resistance, and can be widely used as an indoor/outdoor decorative material.
Description
Technical field
The present invention relates to building material technical field, specifically, relate to a kind of artificial grantie materials for wall and preparation method thereof.
Background technology
In production process of phosphoric acid, often produce one ton of P
2o
5by-product five tons of phosphogypsums, the every by-product phosphogypsum every year of medium-sized phosphoric acid production enterprise is about 3,500,000 tons.So many phosphogypsum not only needs a larger cinder yard, but also can cause pollution of waterhead.At present, the most frequently used phosphogypsum treatment process has following four kinds:
First method: phosphoric acid cream is used for backfill pit.According to statistics, when not adopting phosphogypsum to backfill mine working, mine working filling cost accounts for 1/3 of mining, and attal accounts for 80% of filling cost, fill mine working with phosphogypsum, fill cost and account for 1/5 of mining cost, not only saved filling cost, and improve utilization of three wastes rate, decrease environmental pollution.But, due to factors such as phosphogypsum jelling agent casting resin viscosity is high, sedimentation fast, condensation is fast, many, the easy pluggings of fine particle, difficult cleanings, at present, conventional method adopts mixture workshop to lead to long-distance Automobile Transportation to mining area, Filling Station is set up in hole, ore deposit nearby, completes filling by pump delivery to flow processs such as roadways.Automobile Transportation generally has the distance of 30 km from ardealite storage yard to Filling Station, and major part is sky way.Though the car of transport phosphogypsum is common double-bridge vehicle without the car of the easy airborne dust of sealing, fortune phosphogypsum jelling agent is that tank car has sealing but vehicle body length drives the larger Road transport of existence and traffic safety hidden danger on sky way, and phosphogypsum jelling agent warehouse-in forklift is had bad luck, is sieved and be filled with airborne dust and noise, all there is larger safety and pollution hidden trouble to environment with slurry, personnel, equipment.Adopt pipeline transportation, Filling Station is selected unreasonable because of its phosphogypsum and phosphogypsum jelling agent ratio and conduit slope, camber, material design, frequent generation blocking pipe, cause the equipment safety operation hidden danger such as equipment superpressure, motor overload and cannot clean after line clogging and only have destructive dismounting, pipeline waste is comparatively large, cost is higher, continuous production is low, equipment and personnel exist larger safety in production and run hidden danger.
Second method: by the agent of phosphogypsum production Flocculated Cement.The crystal habit of phosphogypsum is identical with the plaster of paris, for prismatic or cylindricality plate crystal, chemical composition and plaster of paris composition basic simlarity, but due to containing solubility Vanadium Pentoxide in FLAKES, phosphoric acid salt, soluble fluoride, insoluble Vanadium Pentoxide in FLAKES and organic impurity etc., the hydration time of cement can be extended, reduce early strength and extend time of coagulation, therefore phosphogypsum directly can not be used as the retardant of cement.Phosphogypsum is needed to process, method conventional is at present through art breading such as washing, pre-treatment, drying and calcinings by phosphogypsum, it is low that this method obtains cement setting retarder cost, but by the long flow path of producing cement retarder through phosphogypsum, facility investment is large, and still inevitably containing Vanadium Pentoxide in FLAKES and fluorochemical in the flocculation agent produced, make the hydration time of cement and time of coagulation longer.
The third method: by phosphogypsum sulphur ammonium and calcium carbonate, the method utilizes ammonia and carbonic acid gas that phosphogypsum is changed into sulphur ammonium and calcium carbonate, and the specification of quality of the method to phosphogypsum is higher, and Production Flow Chart is long, and investment is large.
4th kind of method: phosphogypsum is used for improve alkaline soil.Containing Vanadium Pentoxide in FLAKES in phosphogypsum, cause phosphogypsum aobvious acid, its pH value is 1.5 ~ 4.5, can be used to the alkalescence in sweetening of the soil, and the compositions such as the phosphorus contained in phosphogypsum, iron, magnesium, silicon, zinc, sulphur and the calcium nutritive element that to be plant-growth necessary.
Above-mentioned several method has promoted the technical progress of China's phosphogypsum resource utilization, but above-mentioned technology fails to utilize phosphogypsum fully, and fundamentally can not solve the phosphogypsum present situation that pile up like a mountain.Therefore, there is people by phosphogypsum as the raw material preparing artificial grantie materials for wall, by the process phosphogypsum that this approach can be a large amount of, and can preferably phosphogypsum be fully utilized.At present, usually after phosphogypsum being mixed with a small amount of cement, paper pulp, fiber reinforced material etc., phosphogypsum fiberboard is made again after pressurization, due to phosphogypsum itself, not have gelling, water content high and containing characteristics such as plurality of impurities, the performance such as wear resistance, weathering resistance, ultimate compression strength of the phosphogypsum artificial grantie materials for wall adopting the method to produce is on the low side, is difficult to the service requirements reaching building and ornament materials.The patent application that be used for phosphogypsum to prepare artificial grantie materials for wall has a lot, such as, patent CN101219881 discloses a kind of phosphogypsum composite material, it is for main raw material with phosphogypsum and urea-formaldehyde resin, be aided with resol, nut-shell, polyacrylamide, flyash, after above-mentioned raw materials mix and blend, then through extrusion molding and get final product, manufacture craft is simple.The patent No. is ZL200810233755.0, denomination of invention is " a kind of artificial grantie materials for wall utilizing industrial residue to produce ", it is with parts by weight, after phosphogypsum 10 ~ 40 parts, 5 ~ 15 parts, lime, cement 15 ~ 28 parts, water glass 0.02 ~ 0.05 part, water reducer 0.01 ~ 0.05 part, retardant 0 ~ 0.004 part, hardening accelerator 0 ~ 0.005 part and defoamer 0 ~ 0.008 part are mixed, be that 4:10 adds water and stirs according to ratio of water to material, then be poured in mould shaping, natural air drying.It has the advantage that manufacturing process is simple, production cost is low, have certain heat insulating effect.By phosphogypsum for the production of artificial grantie materials for wall, a kind of formula of research is simple, and production technique is simple, and produces the building products of good combination property, has significant economic implications.
Summary of the invention
In view of this, the object of this invention is to provide a kind of formula rationally, the simple artificial grantie materials for wall of preparation technology and preparation method thereof, to solve the existing phosphogypsum present situation that pile up like a mountain, and phosphogypsum is utilized, obtain larger economic benefit and social benefit.
The present inventor is by long-term research and constantly test, and finally develop formula of the present invention and preparation technology, the present invention solves the problems of the technologies described above particular by following technical scheme:
A kind of artificial grantie materials for wall, with parts by weight, is prepared from by following raw material: phosphogypsum 50 ~ 80 parts, cement 6 ~ 16 parts, fiber 1 ~ 2 part, yellow phosphorus furnace slag 20 ~ 30 parts and unslaked lime 2 ~ 10 parts.
Preferably, be prepared from by phosphogypsum 60 ~ 70 parts, cement 10 ~ 14 parts, fiber 1.2 ~ 1.8 parts, yellow phosphorus furnace slag 22 ~ 28 parts and unslaked lime 4 ~ 8 parts.
More preferably, be prepared from by phosphogypsum 67 parts, cement 12 parts, fiber 1.5 parts, yellow phosphorus furnace slag 25 parts and unslaked lime 6 parts.
In described phosphogypsum, the content of phosphogypsum dihydrate is more than 87%.
The content of described phosphogypsum dihydrate be more than 87% phosphogypsum prepared by following methods and obtain: existing phosphogypsum is dried in the drying machine of 280 ~ 290 DEG C to moisture content be less than 7%, then send in Vertical Mill device and complete phosphogypsum Granular composite, being ground to fineness is 30 ~ 40 orders, phosphogypsum and water are joined in stirrer, liquid-solid ratio is made to be (26 ~ 28): 80, after stirring 1 ~ 2h, leave standstill 4 ~ 5h, remove floating superincumbent organic impurity, then calcium oxide is added, the weight ratio of calcium oxide and phosphogypsum is (3 ~ 4): 95, stir reflection 2 ~ 3h at the temperature of 50 ~ 60 DEG C after, crossed 40 ~ 60 mesh sieves, screen underflow is the phosphogypsum that phosphogypsum dihydrate content is more than 87%.
Described raw material also comprises expanded rubber 0.6 ~ 1 part, Sodium Silicofluoride 9 ~ 12 parts, tetrafluoroethylene-perfluoro alkoxy vinyl ethers multipolymer 0.2 ~ 1.5 part and monocycle compound in triazine class 0.1 ~ 1 part.
The preparation method of described artificial grantie materials for wall, comprises the following steps:
(1) yellow phosphorus furnace slag, cement, fiber, unslaked lime are mixed with phosphogypsum, stirring reaction 8 ~ 10h under temperature 80 ~ 90 DEG C, stirring speed are 3000 ~ 3500r/min condition, then grinds to form 80 ~ 100 object fine powders, obtains mixture;
(2), after water mixture being added mixture weight 12 ~ 16% stirs, be poured in mould, obtain shaping after phosphogypsum base material;
(3) phosphogypsum base material is placed in curing room maintenance process 12 ~ 16h that temperature is 128 ~ 132 DEG C, pressure is 0.3MPa;
(4) being dried to moisture content at normal temperatures until phosphogypsum base material is after 4 ~ 6%, repairing is carried out on the surface of base material and sand milling is less than 2mm to its planeness;
(5) the substrate surface coating polyester oil despot paint white paint after step (4) process, thickness is 0.5 ~ 1mm, drying treatment 15 ~ 18h at the temperature of 50 ~ 60 DEG C, then granite finish paint is sprayed again, thickness is 1 ~ 2mm, makes granite finish paint after base material shows nature levelling, then carries out spreading a spraying granite finish paint, then by base material baking and curing 10 ~ 15min at the temperature of 160 ~ 180 DEG C, being dried to moisture content afterwards is at normal temperatures less than 6%.
In described unslaked lime, calcium oxide content is more than 55%.
In described step (1), yellow phosphorus furnace slag, cement, fiber, unslaked lime are mixed with phosphogypsum, stirring reaction 9h under temperature 85 DEG C, stirring speed are 3200r/min condition, then grinds to form 80 object fine powders, obtains mixture.
In described step (3), phosphogypsum base material is placed in the curing room maintenance process 14h that temperature is 130 DEG C, pressure is 0.3MPa.
In described step (4), being dried to moisture content at normal temperatures until phosphogypsum base material is after 8%, repairing is carried out on the surface of base material and sand milling is less than 1mm to its planeness.
In described step (5), substrate surface coating polyester oil despot paint white paint after step (4) process, thickness is 0.8mm, drying treatment 16h at the temperature of 54 DEG C, then granite finish paint is sprayed again, thickness is 1.5mm, make granite finish paint after base material shows nature levelling, carry out again spreading a spraying granite finish paint, then by base material baking and curing 12min at the temperature of 165 DEG C, being dried to moisture content afterwards is at normal temperatures less than 5%, obtains artificial grantie materials for wall.
Beneficial effect of the present invention is:
1. the present invention adopts phosphogypsum, yellow phosphorus furnace slag and unslaked lime to be that artificial grantie materials for wall prepared by raw material, solves the phosphogypsum present situation that pile up like a mountain, to protection of the environment, realizes Sustainable development significant.Meanwhile, raw material sources are extensive and cheap, make the production cost of this artificial grantie materials for wall lower.
2. find through research, Soluble matter content in phosphogypsum is higher, the solidifiability of phosphogypsum is poorer, the present invention is by processing existing phosphogypsum, phosphogypsum is dried at a certain temperature to moisture content be less than 10%, send in Vertical Mill device and complete phosphogypsum Granular composite, grinding, then phosphogypsum and water are joined in stirrer and stir, then leave standstill, floating superincumbent organic impurity can be removed, then after adding calcium oxide stirring reflection for some time, crossed 40 ~ 60 mesh sieves, screen underflow is the phosphogypsum mainly become as phosphogypsum dihydrate, screen overflow is the Vanadium Pentoxide in FLAKES of calcium oxide and solubility and the product of fluorochemical reaction, with this by solubility Vanadium Pentoxide in FLAKES in phosphogypsum and fluorochemical removing, substantially increase the solidifiability of phosphogypsum, enhance the over-all properties of phosphogypsum.
3. after yellow phosphorus furnace slag, cement, fiber, unslaked lime being mixed with phosphogypsum, carry out ripening, eliminate the acidity of phosphogypsum, and reduce the content of soluble substance in phosphogypsum, improve the solidifiability of phosphogypsum, and modification is carried out to phosphogypsum, shorten digestion time, phosphorus slag powder is carried out hydration reaction and is generated primary product ettringite crystal, can improve intensity and the water tolerance of artificial grantie materials for wall significantly.
4. compared with traditional High Temperature High Pressure maintenance, the present invention by adopt 0.3MPa, 128 ~ 132 DEG C maintenance is carried out to artificial grantie materials for wall, significantly improve quality and the product qualified rate of this artificial grantie materials for wall, and energy consumption is low, production efficiency is high, invests little.Meanwhile, adopt this kind of maintenance process, significantly reduce the shrinking percentage of base material in dry environment and the rate of expansion in soaked environment, enhance the ultimate compression strength of base material, extend the work-ing life of base material.
5. the present invention is by controlling the moisture content of base material after below 6%, carry out spray-applied primer again, now, base material has certain water-absorbent, the portion of water in coating can be siphoned away, accelerate the solidification of coating, and coating immerses in base material along with moisture, makes more firm the covering at substrate surface of coating.
6. preparation method of the present invention is simple, easy to operate.And the artificial grantie materials for wall produced has the advantages such as lightweight, waterproof fireproofing performance is good, ultimate compression strength is high, weathering resistance is strong, can be widely used as the finishing material of indoor and outdoor.
Embodiment
Conveniently those skilled in the art will recognize that the present invention will be further described below in conjunction with embodiment.Embodiment is only illustrating this invention, is not limitation of the invention, and the step not doing in embodiment to illustrate is all prior arts, is not described in detail at this.
Phosphogypsum of the present invention is from Xifeng Heavy Calcium Factory, Kailin Group. Guizhou, and its total phosphorous is 1.62%, and free-water is 12.33%, and calcium oxide is 31.22%, and silicon-dioxide is 3.31%, and sulfur trioxide content is 40.02%.
Yellow phosphorus furnace slag of the present invention comes from Guizhou and opens phosphorylcholine group Xifeng Lin Ye company, and the content of its silicon-dioxide is 37.60%, and calcium oxide content is 51.12%, and phosphorus pentoxide content is 2.12%, and the content of aluminium sesquioxide is 2.24%.
Lime of the present invention is commercially available, and the content of its calcium oxide is more than 55%.
Embodiment one
Raw material:
Phosphogypsum 50kg, fiber 1kg, cement 6kg, yellow phosphorus furnace slag 20kg and unslaked lime 2kg.
Preparation method:
Yellow phosphorus furnace slag, cement, fiber, unslaked lime and phosphogypsum are sent in stirrer, stirring reaction 10h under temperature 80 DEG C, stirring speed are 3000r/min condition, then 80 object fine powders are ground to form, to obtaining in mixture after the water adding mixture weight 12% stirs, be poured in mould, by obtain shaping after phosphogypsum base material send into that temperature is 128 DEG C, pressure is maintenance process 12h in the curing room of 0.3MPa; Being dried to moisture content at normal temperatures until phosphogypsum base material is after 4%, the surface of base material is carried out repairing and sand milling to its planeness is 2mm, at substrate surface coating polyester oil despot paint white paint, thickness is 0.5mm, drying treatment 18h at the temperature of 50 DEG C, then granite finish paint is sprayed again, thickness is 2mm, make granite finish paint after base material shows nature levelling, carry out again spreading a spraying granite finish paint, then by base material baking and curing 10min at the temperature of 160 DEG C, being dried to moisture content afterwards is at normal temperatures 6%, obtains artificial grantie materials for wall.
In described unslaked lime, calcium oxide content is more than 55%.
Embodiment two
Raw material:
Phosphogypsum 80kg, fiber 2kg, cement 16kg, yellow phosphorus furnace slag 30kg and unslaked lime 10kg.
Preparation method:
Yellow phosphorus furnace slag, cement, fiber, unslaked lime and phosphogypsum are sent in stirrer, stirring reaction 8h under temperature 90 DEG C, stirring speed are 3500r/min condition, then 100 object fine powders are ground to form, to obtain after water that mixture adds mixture weight 16% stirs, be poured in mould, by obtain shaping after phosphogypsum base material send into that temperature is 132 DEG C, pressure is maintenance process 12h in the curing room of 0.3MPa; Being dried to moisture content at normal temperatures until phosphogypsum base material is after 6%, repairing is carried out on the surface of base material and sand milling is less than 2mm to its planeness, at substrate surface coating polyester oil despot paint white paint, thickness is 1mm, drying treatment 15h at the temperature of 60 DEG C, then granite finish paint is sprayed again, thickness is 1mm, make granite finish paint after base material shows nature levelling, carry out again spreading a spraying granite finish paint, then by base material baking and curing 10min at the temperature of 180 DEG C, being dried to moisture content afterwards is at normal temperatures 5%, obtains artificial grantie materials for wall.
In described unslaked lime, calcium oxide content is more than 55%.
Embodiment three
Raw material:
Phosphogypsum 60kg, fiber 1.2kg, cement 10kg, yellow phosphorus furnace slag 22kg and unslaked lime 4kg.
Preparation method:
By yellow phosphorus furnace slag, cement, fiber, unslaked lime and phosphogypsum are sent in stirrer, temperature 82 DEG C, stirring speed is stirring reaction 9h under 3100r/min condition, then 80 object fine powders are ground to form, to obtain after water that mixture adds mixture weight 13% stirs, be poured in mould, by obtain shaping after phosphogypsum base material send into temperature be 129 DEG C, pressure is maintenance process 15h in the curing room of 0.3MPa, being dried to moisture content at normal temperatures until phosphogypsum base material is after 5%, repairing is carried out on the surface of base material and sand milling is less than 2mm to its planeness, at substrate surface coating polyester oil despot paint white paint, thickness is 0.9mm, drying treatment 16h at the temperature of 52 DEG C, then granite finish paint is sprayed again, thickness is 1.4mm, make granite finish paint after base material shows nature levelling, carry out again spreading a spraying granite finish paint, then by base material baking and curing 12min at the temperature of 165 DEG C, being dried to moisture content afterwards is at normal temperatures less than 6%.
In described unslaked lime, calcium oxide content is more than 55%.
Embodiment four
Phosphogypsum 70kg, fiber 1.8kg, cement 14kg, yellow phosphorus furnace slag 28kg and unslaked lime 8kg.
Preparation method:
Yellow phosphorus furnace slag, cement, fiber, unslaked lime and phosphogypsum are sent in stirrer, stirring reaction 9h under temperature 88 DEG C, stirring speed are 3400r/min condition, then 100 object fine powders are ground to form, to obtain after water that mixture adds mixture weight 15% stirs, be poured in mould, by obtain shaping after phosphogypsum base material send into that temperature is 131 DEG C, pressure is maintenance process 15h in the curing room of 0.3MPa; Being dried to moisture content at normal temperatures until phosphogypsum base material is after 5%, repairing is carried out on the surface of base material and sand milling is less than 2mm to its planeness, at substrate surface coating polyester oil despot paint white paint, thickness is 0.7mm, drying treatment 17h at the temperature of 58 DEG C, then granite finish paint is sprayed again, thickness is 2mm, make granite finish paint after base material shows nature levelling, carry out again spreading a spraying granite finish paint, then by base material baking and curing 14min at the temperature of 175 DEG C, being dried to moisture content afterwards is at normal temperatures 4%, to obtain final product.
In described unslaked lime, calcium oxide content is more than 55%.
Embodiment five
Phosphogypsum 67kg, fiber 1.5kg, cement 12kg, yellow phosphorus furnace slag 25kg and unslaked lime 6kg.
Preparation method:
By yellow phosphorus furnace slag, cement, fiber, unslaked lime and phosphogypsum are sent in stirrer, temperature 85 DEG C, stirring speed is stirring reaction 9h under 3300r/min condition, then 100 object fine powders are ground to form, to obtain after water that mixture adds mixture weight 14% stirs, be poured in mould, by obtain shaping after phosphogypsum base material send into temperature be 130 DEG C, pressure is maintenance process 14h in the curing room of 0.3MPa, being dried to moisture content at normal temperatures until phosphogypsum base material is after 5%, repairing is carried out on the surface of base material and sand milling is less than 2mm to its planeness, at substrate surface coating polyester oil despot paint white paint, thickness is 0.6mm, drying treatment 16h at the temperature of 55 DEG C, then granite finish paint is sprayed again, thickness is 1.6mm, make granite finish paint after base material shows nature levelling, carry out again spreading a spraying granite finish paint, then by base material baking and curing 12min at the temperature of 170 DEG C, being dried to moisture content afterwards is at normal temperatures 5%, obtain artificial grantie materials for wall.
Embodiment six
Raw material:
Phosphogypsum 70kg, fiber 1.8kg, expanded rubber 0.6kg, Sodium Silicofluoride 9kg, tetrafluoroethylene-perfluoro alkoxy vinyl ethers multipolymer 0.2kg, monocycle compound in triazine class 0.1kg, cement 14kg, yellow phosphorus furnace slag 28kg and unslaked lime 8kg.
Preparation method:
Existing phosphogypsum is dried in the drying machine of 280 DEG C to moisture content be 7%, then completing phosphogypsum Granular composite, be ground to fineness in feeding Vertical Mill device is 30 orders, phosphogypsum and water are joined in stirrer, liquid-solid ratio is made to be 26:80, after stirring 1h, leave standstill 4h, remove floating superincumbent organic impurity, then calcium oxide is added, the weight ratio of calcium oxide and phosphogypsum is 3:95, stir reflection 2h at the temperature of 50 DEG C after, crossed 40 mesh sieves, screen underflow is the phosphogypsum that phosphogypsum dihydrate content is 87%.Yellow phosphorus furnace slag, expanded rubber, Sodium Silicofluoride, tetrafluoroethylene-perfluoro alkoxy vinyl ethers multipolymer, monocycle compound in triazine class, cement, fiber, unslaked lime and phosphogypsum are sent in stirrer, stirring reaction 9h under temperature 88 DEG C, stirring speed are 3400r/min condition, then 100 object fine powders are ground to form, to obtain after water that mixture adds mixture weight 15% stirs, be poured in mould, by obtain shaping after phosphogypsum base material send into that temperature is 131 DEG C, pressure is maintenance process 15h in the curing room of 0.3MPa; Being dried to moisture content at normal temperatures until phosphogypsum base material is after 5%, repairing is carried out on the surface of base material and sand milling is less than 2mm to its planeness, at substrate surface coating polyester oil despot paint white paint, thickness is 0.7mm, drying treatment 17h at the temperature of 58 DEG C, then granite finish paint is sprayed again, thickness is 2mm, make granite finish paint after base material shows nature levelling, carry out again spreading a spraying granite finish paint, then by base material baking and curing 14min at the temperature of 175 DEG C, being dried to moisture content afterwards is at normal temperatures 4%, to obtain final product.A small amount of expanded rubber is added in phosphogypsum, be conducive to the intensity of the materials for wall increasing preparation, and can effectively prevent materials for wall from ftractureing, Sodium Silicofluoride is added in phosphogypsum, effectively can strengthen solidification, tetrafluoroethylene-perfluoro alkoxy vinyl ethers multipolymer and monocycle compound in triazine class are conducive to the intensity and the fastness to rubbing that strengthen materials for wall.
Embodiment seven
Raw material:
Phosphogypsum 67kg, fiber 1.5kg, expanded rubber 0.8kg, Sodium Silicofluoride 10kg, tetrafluoroethylene-perfluoro alkoxy vinyl ethers copolymer 1 kg, monocycle compound in triazine class 0.6kg, cement 12kg, yellow phosphorus furnace slag 25kg and unslaked lime 6kg.
Preparation method:
Existing phosphogypsum is dried in the drying machine of 285 DEG C to moisture content be less than 7%, then completing phosphogypsum Granular composite, be ground to fineness in feeding Vertical Mill device is 30 orders, phosphogypsum and water are joined in stirrer, liquid-solid ratio is made to be 27:80, after stirring 1.5h, leave standstill 4.5h, remove floating superincumbent organic impurity, then calcium oxide is added, the weight ratio of calcium oxide and phosphogypsum is 3:95, stir reflection 2.5h at the temperature of 55 DEG C after, crossed 40 mesh sieves, it is 89% phosphogypsum that screen underflow is phosphogypsum dihydrate content.By yellow phosphorus furnace slag, expanded rubber, Sodium Silicofluoride, tetrafluoroethylene-perfluoro alkoxy vinyl ethers multipolymer, monocycle compound in triazine class, cement, fiber, unslaked lime and phosphogypsum are sent in stirrer, temperature 85 DEG C, stirring speed is stirring reaction 9h under 3300r/min condition, then 100 object fine powders are ground to form, to obtain after water that mixture adds mixture weight 14% stirs, be poured in mould, by obtain shaping after phosphogypsum base material send into temperature be 130 DEG C, pressure is maintenance process 14h in the curing room of 0.3MPa, being dried to moisture content at normal temperatures until phosphogypsum base material is after 5%, repairing is carried out on the surface of base material and sand milling is less than 2mm to its planeness, at substrate surface coating polyester oil despot paint white paint, thickness is 0.6mm, drying treatment 16h at the temperature of 55 DEG C, then granite finish paint is sprayed again, thickness is 1.6mm, make granite finish paint after base material shows nature levelling, carry out again spreading a spraying granite finish paint, then by base material baking and curing 12min at the temperature of 170 DEG C, being dried to moisture content afterwards is at normal temperatures 5%, obtain artificial grantie materials for wall.A small amount of expanded rubber is added in phosphogypsum, be conducive to the intensity of the materials for wall increasing preparation, and can effectively prevent materials for wall from ftractureing, Sodium Silicofluoride is added in phosphogypsum, effectively can strengthen solidification, tetrafluoroethylene-perfluoro alkoxy vinyl ethers multipolymer and monocycle compound in triazine class are conducive to the intensity and the fastness to rubbing that strengthen materials for wall.
Embodiment eight
Raw material:
Phosphogypsum 60kg, fiber 1.2kg, expanded rubber 1kg, Sodium Silicofluoride 12kg, tetrafluoroethylene-perfluoro alkoxy vinyl ethers copolymer 1 .5kg, monocycle compound in triazine class 1kg, clay 0.1kg, cement 10kg, yellow phosphorus furnace slag 22kg and unslaked lime 4kg.
Preparation method:
Existing phosphogypsum is dried in the drying machine of 290 DEG C to moisture content be 6%, then completing phosphogypsum Granular composite, be ground to fineness in feeding Vertical Mill device is 40 orders, phosphogypsum and water are joined in stirrer, liquid-solid ratio is made to be 28:80, after stirring 2h, leave standstill 5h, remove floating superincumbent organic impurity, then calcium oxide is added, the weight ratio of calcium oxide and phosphogypsum is 4:95, stir reflection 3h at the temperature of 60 DEG C after, crossed 60 mesh sieves, screen underflow is the phosphogypsum that phosphogypsum dihydrate content is 88%.By yellow phosphorus furnace slag, expanded rubber, Sodium Silicofluoride, tetrafluoroethylene-perfluoro alkoxy vinyl ethers multipolymer, monocycle compound in triazine class, clay, cement, fiber, unslaked lime and phosphogypsum are sent in stirrer, temperature 82 DEG C, stirring speed is stirring reaction 9h under 3100r/min condition, then 80 object fine powders are ground to form, to obtain after water that mixture adds mixture weight 13% stirs, be poured in mould, by obtain shaping after phosphogypsum base material send into temperature be 129 DEG C, pressure is maintenance process 15h in the curing room of 0.3MPa, being dried to moisture content at normal temperatures until phosphogypsum base material is after 5%, repairing is carried out on the surface of base material and sand milling is less than 2mm to its planeness, at substrate surface coating polyester oil despot paint white paint, thickness is 0.9mm, drying treatment 16h at the temperature of 52 DEG C, then granite finish paint is sprayed again, thickness is 1.4mm, make granite finish paint after base material shows nature levelling, carry out again spreading a spraying granite finish paint, then by base material baking and curing 12min at the temperature of 165 DEG C, being dried to moisture content afterwards is at normal temperatures less than 6%.
In described unslaked lime, calcium oxide content is more than 55%.
Test one:
The artificial grantie materials for wall that common granite and embodiment one to embodiment five obtain is carried out simultaneous test.Wherein, the water-intake rate of sample adopts GB/T9966.3 test method, and compressive strength adopts the test method of GB/T9966.1, and fastness to rubbing adopts the test method of GB/T19766 ~ 2005.Testing data sees the following form 1:
Table 1
| Tested sample | Water-intake rate (%) | Compressive strength (MPa) | Fastness to rubbing (l/cm 3) | Density (g/cm 3) |
| Granite | 0.36 | 101.3 | 18.7 | 2.69 |
| Embodiment one | 0.30 | 101.9 | 19.5 | 2.59 |
| Embodiment two | 0.34 | 103.6 | 23.2 | 2.65 |
| Embodiment three | 0.35 | 108.9 | 28.7 | 2.61 |
| Embodiment four | 0.31 | 108.3 | 26.8 | 2.61 |
| Embodiment five | 0.30 | 108.2 | 28.0 | 2.65 |
| Standard-required | ≤3 | ≥55 | ≥10 | ≥2.56 |
As can be seen from above-mentioned test-results, artificial grantie materials for wall prepared by the present invention, the requirement of relevant criterion such as " architectural coating stone material test methods " that its water-intake rate, compressive strength, fastness to rubbing and density all meet, and its over-all properties is better than lithotome granite.
Test two:
Randomly draw artificial grantie materials for wall prepared by embodiment one to embodiment five, first test specimen is carried out high temperature ~ trickle and circulate 80 times, each 6h.Adopt the time of one hour that surface of test piece temperature is risen to 70 DEG C, be 15% by the humid control of test specimen within this period, then constant temperature keeps two hours, controls the homogeneity of air themperature and surface of test piece temperature; Then trickle one hour, trickle temperature is 15 DEG C, and trickle is wanted evenly; Leave standstill after two hours, heating ~ freeze cycle 20 times, each 24h.Adopt and surface of test piece temperature was risen to 50 DEG C in two hours, keep constant temperature six hours, control the homogeneity of air themperature and surface of test piece temperature, then utilize the time of four hours that the temperature of surface of test piece is slowly down to subzero 20 DEG C, and keep constant temperature 12 hours.Test-results: after above-mentioned process, test specimen is all without efflorescence and peeling.Therefore, the weathering resistance of above-mentioned test specimen is stronger.
Test three
Phosphogypsum, yellow phosphorus furnace slag and unslaked lime are sent to stirrer for mixing with the weight ratio of 67:30:3, then natural ripening 20 days, after water material after ripening being added mixture weight 12% stirs, be poured in mould, obtain shaping after length and be widely 200mm phosphogypsum base material, this phosphogypsum base material is carried out maintenance under different curing conditions, again the base material after maintenance is carried out drying or bubble process, the length variations situation of base material after recording processing, result is as following table:
Table 2
Table 3
Table 4
Table 2 is dry and the Swelling and contraction situation of phosphogypsum base material under soaked cycling condition, and as can be seen from the table, under normal pressure, the curing condition of 95 ~ 105 DEG C, the expansion of phosphogypsum base material and shrinkage value are minimum, is secondly 0.3MPa, the maintenance of 130 DEG C.Table 3 is expansion and the situation of contraction of phosphogypsum base material under drying conditions, and as can be seen from the table, under 0.3MPa, the curing condition of 130 DEG C, on the whole in swelling state, the swell value of phosphogypsum base material is minimum.Table 4 is expansion and the situation of contraction of phosphogypsum base material under long-term soaked condition, and as can be seen from the table, it is on the whole in inflationary spiral, and under 0.3MPa, the curing condition of 130 DEG C, the inflationary spiral of phosphogypsum base material entirety is minimum.Can reach a conclusion thus, be artificial grantie materials for wall prepared by raw material for employing phosphogypsum, yellow phosphorus furnace slag and unslaked lime, and the curing condition of its best is 0.3MPa, the temperature of 130 DEG C.
To sum up, adopt artificial grantie materials for wall prepared by formula of the present invention and preparation method, there is the advantages such as waterproof fireproofing performance is good, ultimate compression strength is high, weathering resistance is strong, be suitable for promoting the use of.And raw material sources is extensive, and cost is lower, has larger economic benefit.
Contriver emphasizes at this: the above, it is only better example of the present invention, not any pro forma restriction is done to the present invention, anyly do not depart from technical solution of the present invention content, the any simple modification done above example according to technical spirit of the present invention, coversion material equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. an artificial grantie materials for wall, is characterized in that, with parts by weight, is prepared from by following raw material: phosphogypsum 50 ~ 80 parts, cement 6 ~ 16 parts, fiber 1 ~ 2 part, yellow phosphorus furnace slag 20 ~ 30 parts and unslaked lime 2 ~ 10 parts.
2. artificial grantie materials for wall as claimed in claim 1, is characterized in that, with parts by weight, be prepared from by following raw material: phosphogypsum 60 ~ 70 parts, cement 10 ~ 14 parts, fiber 1.2 ~ 1.8 parts, yellow phosphorus furnace slag 22 ~ 28 parts and unslaked lime 4 ~ 8 parts.
3. artificial grantie materials for wall as claimed in claim 1, is characterized in that, with parts by weight, be prepared from by following raw material: phosphogypsum 67 parts, cement 12 parts, fiber 1.5 parts, yellow phosphorus furnace slag 25 parts and unslaked lime 6 parts.
4. the artificial grantie materials for wall as described in claims 1 to 3 any one, it is characterized in that, described raw material also comprises expanded rubber 0.6 ~ 1 part, Sodium Silicofluoride 9 ~ 12 parts, tetrafluoroethylene-perfluoro alkoxy vinyl ethers multipolymer 0.2 ~ 1.5 part and monocycle compound in triazine class 0.1 ~ 1 part.
5. the preparation method of the artificial grantie materials for wall as described in claims 1 to 3 any one, is characterized in that, comprise the following steps:
(1) yellow phosphorus furnace slag, cement, fiber, unslaked lime are mixed with phosphogypsum, stirring reaction 8 ~ 10h under temperature 80 ~ 90 DEG C, stirring speed are 3000 ~ 3500r/min condition, then grinds to form 80 ~ 100 object fine powders, obtains mixture;
(2), after water mixture being added mixture weight 12 ~ 16% stirs, be poured in mould, obtain shaping after phosphogypsum base material;
(3) phosphogypsum base material is placed in curing room maintenance process 12 ~ 16h that temperature is 128 ~ 132 DEG C, pressure is 0.3MPa;
(4) being dried to moisture content at normal temperatures until phosphogypsum base material is after 4 ~ 6%, repairing is carried out on the surface of base material and sand milling is less than 2mm to its planeness;
(5) the substrate surface coating polyester oil despot paint white paint after step (4) process, thickness is 0.5 ~ 1mm, drying treatment 15 ~ 18h at the temperature of 50 ~ 60 DEG C, then granite finish paint is sprayed again, thickness is 1 ~ 2mm, makes granite finish paint after base material shows nature levelling, then carries out spreading a spraying granite finish paint, then by base material baking and curing 10 ~ 15min at the temperature of 160 ~ 180 DEG C, being dried to moisture content afterwards is at normal temperatures less than 6%.
6. the preparation method of artificial grantie materials for wall as claimed in claim 5, it is characterized in that, in described unslaked lime, calcium oxide content is more than 55%.
7. the preparation method of artificial grantie materials for wall as claimed in claim 5, it is characterized in that, in described step (1), yellow phosphorus furnace slag, cement, fiber, unslaked lime are mixed with phosphogypsum, stirring reaction 9h under temperature 85 DEG C, stirring speed are 3200r/min condition, then grind to form 80 object fine powders, obtain mixture.
8. the preparation method of artificial grantie materials for wall as claimed in claim 5, is characterized in that, in described step (3), phosphogypsum base material is placed in the curing room maintenance process 14h that temperature is 130 DEG C, pressure is 0.3MPa.
9. the preparation method of artificial grantie materials for wall as claimed in claim 5, it is characterized in that, in described step (4), being dried to moisture content at normal temperatures until phosphogypsum base material is after 8%, repairing is carried out on the surface of base material and sand milling is less than 1mm to its planeness.
10. the preparation method of artificial grantie materials for wall as claimed in claim 5, it is characterized in that, in described step (5), substrate surface coating polyester oil despot paint white paint after step (4) process, thickness is 0.8mm, drying treatment 16h at the temperature of 54 DEG C, then granite finish paint is sprayed again, thickness is 1.5mm, make granite finish paint after base material shows nature levelling, carry out again spreading a spraying granite finish paint, then by base material baking and curing 12min at the temperature of 165 DEG C, being dried to moisture content afterwards is at normal temperatures less than 5%, obtain artificial grantie materials for wall.
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| CN111620640A (en) * | 2019-04-04 | 2020-09-04 | 北新集团建材股份有限公司 | Machine-sprayed light-weight bottom layer plastering gypsum and preparation method thereof |
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| CN101973747A (en) * | 2010-09-30 | 2011-02-16 | 昆明理工大学 | Method for preparing baking-free brick from yellow phosphorus slag and modified phosphogypsum |
| CN102659377A (en) * | 2012-04-28 | 2012-09-12 | 昆明理工大学 | Thermal preservation energy saving composite phase change energy storage gypsum board prepared by using phosphorous gypsum and preparation method thereof |
| CN103641426A (en) * | 2013-11-01 | 2014-03-19 | 贵州开磷（集团）有限责任公司 | High strength phosphogypsum brick and manufacturing method thereof |
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Patent Citations (5)
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| JPH11116319A (en) * | 1997-10-07 | 1999-04-27 | Yoshino Gypsum Co Ltd | Gypsum-based building material having suppressed elution of heavy metal and its production |
| CN101648403A (en) * | 2009-09-04 | 2010-02-17 | 昆明理工大学 | Method for producing air entrapping building block by utilizing ardealite |
| CN101973747A (en) * | 2010-09-30 | 2011-02-16 | 昆明理工大学 | Method for preparing baking-free brick from yellow phosphorus slag and modified phosphogypsum |
| CN102659377A (en) * | 2012-04-28 | 2012-09-12 | 昆明理工大学 | Thermal preservation energy saving composite phase change energy storage gypsum board prepared by using phosphorous gypsum and preparation method thereof |
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| CN111620640A (en) * | 2019-04-04 | 2020-09-04 | 北新集团建材股份有限公司 | Machine-sprayed light-weight bottom layer plastering gypsum and preparation method thereof |
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