CN102276222B - Phosphogypsum wall brick and preparation method thereof - Google Patents
Phosphogypsum wall brick and preparation method thereof Download PDFInfo
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- CN102276222B CN102276222B CN2011101552532A CN201110155253A CN102276222B CN 102276222 B CN102276222 B CN 102276222B CN 2011101552532 A CN2011101552532 A CN 2011101552532A CN 201110155253 A CN201110155253 A CN 201110155253A CN 102276222 B CN102276222 B CN 102276222B
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- phosphogypsum
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- wall body
- carbide slag
- body brick
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- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title claims abstract description 116
- 239000011449 brick Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000002893 slag Substances 0.000 claims abstract description 50
- 239000002994 raw material Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000004575 stone Substances 0.000 claims abstract description 18
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 17
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 17
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 32
- 239000011575 calcium Substances 0.000 claims description 32
- 229910052791 calcium Inorganic materials 0.000 claims description 32
- 239000000654 additive Substances 0.000 claims description 26
- 230000000996 additive effect Effects 0.000 claims description 20
- 239000000779 smoke Substances 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 17
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 claims description 16
- 235000013312 flour Nutrition 0.000 claims description 16
- 229920005610 lignin Polymers 0.000 claims description 16
- 229940056729 sodium sulfate anhydrous Drugs 0.000 claims description 16
- 239000011246 composite particle Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 11
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 claims description 10
- 238000005469 granulation Methods 0.000 claims description 9
- 230000003179 granulation Effects 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000011398 Portland cement Substances 0.000 claims description 2
- 230000032683 aging Effects 0.000 claims description 2
- 239000004568 cement Substances 0.000 claims description 2
- -1 rubble Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 abstract 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000004566 building material Substances 0.000 abstract 1
- 229940044172 calcium formate Drugs 0.000 abstract 1
- 235000019255 calcium formate Nutrition 0.000 abstract 1
- 239000004281 calcium formate Substances 0.000 abstract 1
- 229920005551 calcium lignosulfonate Polymers 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 230000008014 freezing Effects 0.000 abstract 1
- 238000007710 freezing Methods 0.000 abstract 1
- 239000002440 industrial waste Substances 0.000 abstract 1
- 238000005453 pelletization Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 239000008187 granular material Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000012535 impurity Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 230000001627 detrimental effect Effects 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical group [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
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Abstract
The invention discloses a phosphogypsum wall brick, which comprises the following raw materials in parts by weight: 90-105 parts of phosphogypsum, 6-10 parts of carbide slag, 8-15 parts of hydraulic admixture, 5-8 parts of rough stone, 10-16 parts of stone powder, 0.5-2 parts of anhydrous sodium sulfate, 3-5 parts of water glass, 0.05-0.2 part of calcium formate, and 2-6 parts of calcium lignosulphonate. The wall brick has the characteristics of light weight, high strength, low water absorption, high softening coefficient and good freezing resistance, is suitable for a building load-bearing and spacing wall body. The invention also discloses a preparation method of the phosphogypsum wall brick. According to the method disclosed by the invention, large quantities of industrial waste residue phosphogypsum is effectively utilized, the building material resource comprehensive utilization of the phosphogypsum can be achieved; meanwhile, a phosphogypsum and carbide slag composite pelletizing technology is adopted harmful substances in the phosphogypsum raw material can be removed, and the softening coefficient and strength of a phosphogypsum product can be increased.
Description
Technical field
The present invention the invention belongs to the industrial residue building resourceization and utilizes technical field, is specifically related to a kind of phosphogypsum wall body brick and preparation method thereof.
Background technology
Phosphogypsum is the industrial residue that discharges in the production process of phosphoric acid, and 1 ton of phosphoric acid of every production will be discharged 5 tons of phosphogypsums, and along with the continuous development of China's chemical industry, the quantity discharged of phosphogypsum increases year by year.The main thing phase composition of phosphogypsum is terra alba (CaSO
42H
2O), wherein also contain small amount of impurities, like solvable phosphorus, eutectic phosphorus, organism, solvable fluorine etc.Impurity is to gypsum time of coagulation and product strength all having disadvantageous effect, and is difficult to remove, and in addition, the phosphogypsum product ubiquity is prone to deficiencies such as suction, coefficient of softening be low.Therefore, at present China's comprehensive utilization of phosphogypsum rate is very low, how with the mode of air storage or landfill by simple process, appropriation of land resource not only, and also can cause the pollution of atmosphere and water surrounding through wind and weather is detrimental to health.
Mostly traditional building masonry wall brick is clay solid brick, and its production process not only consumes a large amount of coal energy, causes environmental pollution, and serious the breaking-up ploughed.In recent years, along with country restriction, ban use of the enforcement of policies such as clay solid brick, various is that the wall body brick of feedstock production enjoys favor with the industrial residue.Domestic the appearance with the industrial residue phosphogypsum is research and the patent that main raw material prepares various brick class materials for walls at present; But comprehensive contrast is considered; Have following problem: 1, the phosphogypsum raw material does not carry out pre-treatment, can't remove wherein detrimental impurity, influences the performance of goods; 2, the phosphogypsum raw material carries out calcination processing and forms the building phosphogypsum (CaSO with gelling
40.5H
2O), in actual production, cause energy consumption; 3, in preparation or the production process, adopt the steam-cured method of high temperature and high pressure steam to make production technique become complicated to raw material or goods, and cause the waste of hydroelectric resources.
Summary of the invention
The object of the present invention is to provide a kind of phosphogypsum wall body brick, have that impurity is few, intensity is high, coefficient of softening is high; Be fit to do buildings load-bearing and interval body of wall.
The present invention also aims to provide the preparation method of above-mentioned phosphogypsum wall body brick, can remove the detrimental impurity in the phosphogypsum raw material, and can improve the coefficient of softening and the intensity of phosphogypsum product.
First purpose of the present invention realizes through following technique means: a kind of phosphogypsum wall body brick, the raw material that comprises following weight part is processed: phosphogypsum 90-105, carbide slag 6-10, hydraulic additive 8-15, rubble 5-8, stone flour 10-16, Sodium sulfate anhydrous.min(99) 0.5-2, water glass 3-5, calcium formiate 0.05-0.2, calcium lignin sulphonate 2-6.
The weight part of wherein said each raw material is preferably: phosphogypsum 95-100, carbide slag 7-9, hydraulic additive 10-13, rubble 6-7, stone flour 12-14, Sodium sulfate anhydrous.min(99) 1.0-1.5, water glass 3.5-4.5, calcium formiate 0.075-0.15, calcium lignin sulphonate 3-5.
Weight part the best of wherein said each raw material is: phosphogypsum 100, carbide slag 8, hydraulic additive 12, rubble 6.5, stone flour 13, Sodium sulfate anhydrous.min(99) 1.25, water glass 4, calcium formiate 0.125, calcium lignin sulphonate 4.
Second purpose of the present invention realizes through following technique means: the preparation method of above-mentioned phosphogypsum wall body brick; Comprise following steps: phosphogypsum and the carbide slag of getting the metering ratio earlier mix stirring; And carry out water smoke spray; Compound to phosphogypsum and carbide slag carries out granulation, makes difform phosphogypsum and carbide slag composite particles, carries out air-dry and ageing then; , than being mixed, phosphogypsum and carbide slag composite particles, hydraulic additive, rubble, stone flour, Sodium sulfate anhydrous.min(99), water glass, calcium formiate, calcium lignin sulphonate add water to stir into distributed slurry by metering; The slurry injection molding machine is vibrated extrusion forming; Goods after the moulding are carried out natural curing, make the phosphogypsum wall body brick.
In above-mentioned preparation method:
In the whole process of preparation consumption of water be each raw material gross weight of phosphogypsum wall body brick 0.1-0.2 doubly, wherein phosphogypsum and carbide slag composite particles prepare that water smoke sprays the 8-12% that institute's water consumption accounts for the total water amount in the process.
Described hydraulic additive is preferably ordinary Portland cement or quick hardening sulphoaluminate cement, can also be other hydraulic additive.
The particle diameter of described phosphogypsum and carbide slag composite particles is 8-20mm.Wherein the shape of phosphogypsum and carbide slag composite particles can be polyhedron-shaped for ball-type, cubic type, tetrahedral or other; The particle diameter of said ball-type and other shaped particles can be 8-15mm, and the cubic type particulate length of side can be 9-20mm, and the tetrahedral particulate length of side can be 9-20mm etc.
The forming pressure of said extrusion forming is 12-20MPa.
The phosphogypsum wall body brick that utilizes proportioning raw materials of the present invention and preparation method to make, its each item performance index all can satisfy the building operation requirement, and phosphogypsum wall body brick of the present invention and preparation method thereof, also have the following advantages:
(1) adopts phosphogypsum and carbide slag to mix and stir, and carry out the processing mode of water smoke spray, a small amount of detrimental impurity in carbide slag and the phosphogypsum is fully reacted, eliminate the disadvantageous effect of impurity goods.
(2) employing can be mixed and stirred the processing mode of the mixture granulation of phosphogypsum and carbide slag in the process at Jia Shui, and spherical granules is fully wrapped up by the hydraulic additive slurry, effectively improves the degree of compactness and the coefficient of softening of goods.
(3) effectively utilize a large amount of industrial residue phosphogypsums, can realize the building resource comprehensive utilization of phosphogypsum, and technology is simple.
Description of drawings
Fig. 1 is the technological process of production figure of phosphogypsum wall body brick of the present invention.
Embodiment
Below among each embodiment related raw material consumption and proportioning be the quality proportioning, each raw material removes phosphogypsum and takes from the ardealite storage yard in certain chemical plant, carbide slag is taken from certain acetylene enterprise waste residue stockyard; Rubble and stone flour are taken from certain mill chats, and above raw material adopts other as commercially available also passable, and other raw material such as hydraulic additive, Sodium sulfate anhydrous.min(99), water glass, calcium formiate and calcium lignin sulphonate etc. all can commercially availablely obtain.
Embodiment 1
The phosphogypsum wall body brick that present embodiment provides is to be processed by the raw material of following weight part: 100 parts of phosphogypsums, 10 parts of carbide slags, 12 parts of hydraulic additives; 5 parts of rubbles, 10 parts of stone flours, 1.5 parts of Sodium sulfate anhydrous.min(99); 3 parts of water glass, 0.2 part of calcium formiate, 4 parts of calcium lignin sulphonates.Wherein phosphogypsum is a particle, in product, can be used as inert aggregate and uses.
The preparation method of this phosphogypsum wall body brick is: phosphogypsum and carbide slag are mixed stirring, and carry out the water smoke spray; Compound to phosphogypsum and carbide slag carries out granulation, makes spherical granules, and particle diameter is 8-15mm, and air-dry under field conditions (factors); Spherical granules is mixed with admixture with hydraulic additive, aggregate, add the water stirring and be distributed slurry; The slip injection molding machine is pressed, and forming pressure is 15MPa; Goods after the moulding are carried out natural curing, make the phosphogypsum wall body brick; Water material mass ratio is 0.15 in the whole process, and wherein phosphogypsum and carbide slag composite particles prepare in the process water smoke spray institute water consumption and account for 10% of total water amount.
The phosphogypsum wall body brick that can produce is of a size of 240mm * 115mm * 53mm, and this is of a size of the building Commonly Used Size, also can prepare the phosphogypsum wall body brick of other size as required.
Embodiment 2
The phosphogypsum wall body brick that present embodiment provides is to be processed by the raw material of following weight part: 100 parts of phosphogypsums, 6 parts of carbide slags, 15 parts of hydraulic additives, 8 parts of rubbles, 16 parts of stone flours, 2 parts of Sodium sulfate anhydrous.min(99), 4 parts of water glass, 0.1 part of calcium formiate, 2 parts of calcium lignin sulphonates.
The preparation method of this phosphogypsum wall body brick is: phosphogypsum and carbide slag are mixed stirring, and carry out the water smoke spray; Compound to phosphogypsum and carbide slag carries out granulation, makes the cubic type particle, and particle diameter is 9-20mm, and air-dry under field conditions (factors); Spherical granules is mixed with admixture with hydraulic additive, aggregate, add the water stirring and be distributed slurry; The slip injection molding machine is pressed, and forming pressure is 20MPa; Goods after the moulding are carried out natural curing, make the phosphogypsum wall body brick, water material mass ratio 0.20 in the whole process, wherein phosphogypsum and carbide slag composite particles prepare in the process water smoke spray institute water consumption and account for 8% of total water amount.
The phosphogypsum wall body brick of making is of a size of 240mm * 115mm * 53mm, and this is of a size of the building Commonly Used Size, also can prepare the phosphogypsum wall body brick of other size as required.
Embodiment 3
The phosphogypsum wall body brick that present embodiment provides is to be processed by the raw material of following weight part: 100 parts of phosphogypsums, 8 parts of carbide slags, 8 parts of hydraulic additives; 7.5 parts of rubbles, 15 parts of stone flours, 0.5 part of Sodium sulfate anhydrous.min(99); 5 parts of water glass, 0.05 part of calcium formiate, 6 parts of calcium lignin sulphonates.
The preparation method of this phosphogypsum wall body brick is: phosphogypsum and carbide slag are mixed stirring, and carry out the water smoke spray; The compound of phosphogypsum and carbide slag carries out granulation, makes the tetrahedral particle, and particle diameter is 9-20mm, and air-dry under field conditions (factors); Spherical granules is mixed with admixture with hydraulic additive, aggregate, add the water stirring and be distributed slurry; The slip injection molding machine is pressed, and forming pressure is 8MPa; Goods after the moulding are carried out natural curing, make the phosphogypsum wall body brick; Water material mass ratio 0.10 in the whole process, wherein phosphogypsum and carbide slag composite particles prepare in the process water smoke spray institute water consumption and account for 12% of total water amount.
The phosphogypsum wall body brick of making is of a size of 240mm * 115mm * 115mm, and this is of a size of the building Commonly Used Size, also can prepare the phosphogypsum wall body brick of other size as required.
Embodiment 4
The phosphogypsum wall body brick that present embodiment provides, the raw material that contains following weight part is processed: 90 parts of phosphogypsums, 9 parts of carbide slags, 13 parts of hydraulic additives; 6 parts of rubbles, 12 parts of stone flours, 1.0 parts of Sodium sulfate anhydrous.min(99); 4.5 parts of water glass, 0.15 part of calcium formiate, 3 parts of calcium lignin sulphonates.
The preparation method of this phosphogypsum wall body brick is: phosphogypsum and carbide slag are mixed stirring, and carry out the water smoke spray; The compound of phosphogypsum and carbide slag carries out granulation, makes the tetrahedral particle, and particle diameter is 9-20mm, and air-dry under field conditions (factors); Spherical granules is mixed with admixture with hydraulic additive, aggregate, add the water stirring and be distributed slurry; The slip injection molding machine is pressed, and forming pressure is 10MPa; Goods after the moulding are carried out natural curing, make the phosphogypsum wall body brick; Water material mass ratio 0.10 in the whole process, wherein phosphogypsum and carbide slag composite particles prepare in the process water smoke spray institute water consumption and account for 10% of total water amount.
The phosphogypsum wall body brick of making is of a size of 240mm * 115mm * 53mm, and this is of a size of the building Commonly Used Size, also can prepare the phosphogypsum wall body brick of other size as required.
Embodiment 5
The phosphogypsum wall body brick that present embodiment provides, the raw material that contains following weight part is processed: 105 parts of phosphogypsums, 7 parts of carbide slags, 10 parts of hydraulic additives; 7 parts of rubbles, 14 parts of stone flours, 0.75 part of Sodium sulfate anhydrous.min(99); 3.5 parts of water glass, 0.175 part of calcium formiate, 5 parts of calcium lignin sulphonates.
The preparation method of this phosphogypsum wall body brick is: phosphogypsum and carbide slag are mixed stirring, and carry out the water smoke spray; The compound of phosphogypsum and carbide slag carries out granulation, makes the cubic type particle, and its length of side is 9-20mm, and air-dry under field conditions (factors); Spherical granules is mixed with admixture with hydraulic additive, aggregate, add the water stirring and be distributed slurry; The slip injection molding machine is pressed, and forming pressure is 14MPa; Goods after the moulding are carried out natural curing, make the phosphogypsum wall body brick; Water material mass ratio 0.20 in the whole process, wherein phosphogypsum and carbide slag composite particles prepare in the process water smoke spray institute water consumption and account for 11% of total water amount.
The phosphogypsum wall body brick of making is of a size of 240mm * 115mm * 53mm, and this is of a size of the building Commonly Used Size, also can prepare the phosphogypsum wall body brick of other size as required.
Embodiment 6
The phosphogypsum wall body brick that present embodiment provides, the raw material that contains following weight part is processed: 100 parts of phosphogypsums, 8 parts of carbide slags, 12 parts of hydraulic additives; 6.5 parts of rubbles, 13 parts of stone flours, 1.25 parts of Sodium sulfate anhydrous.min(99); 4 parts of water glass, 0.125 part of calcium formiate, 4 parts of calcium lignin sulphonates.
The preparation method of this phosphogypsum wall body brick is: phosphogypsum and carbide slag are mixed stirring, and carry out the water smoke spray; The compound of phosphogypsum and carbide slag carries out granulation, makes spherical granules, and its particle diameter is 8-15mm, and air-dry under field conditions (factors); Spherical granules is mixed with admixture with hydraulic additive, aggregate, add the water stirring and be distributed slurry; The slip injection molding machine is pressed, and forming pressure is 18MPa; Goods after the moulding are carried out natural curing, make the phosphogypsum wall body brick; Water material mass ratio 0.15 in the whole process, wherein phosphogypsum and carbide slag composite particles prepare in the process water smoke spray institute water consumption and account for 9% of total water amount.
The phosphogypsum wall body brick of making is of a size of 240mm * 115mm * 115mm, and this is of a size of the building Commonly Used Size, also can prepare the phosphogypsum wall body brick of other size as required.
To sum up; Wall body brick of the present invention is a main raw material with phosphogypsum, carbide slag, hydraulic additive; Rubble (or claim rubble) and stone flour is respectively slightly, fine aggregate, is equipped with admixtures such as Sodium sulfate anhydrous.min(99), water glass, calcium formiate, calcium lignin sulphonate, processes the phosphogypsum wall body brick.
Above embodiment only is used to set forth the present invention, and protection scope of the present invention is not only to be confined to above embodiment.Content disclosed by the invention and scope that each parameter is got more than the those of ordinary skill foundation of said technical field all can realize the object of the invention.
Claims (8)
1. phosphogypsum wall body brick is characterized in that the raw material that comprises following weight part processes: phosphogypsum 90-105, carbide slag 6-10, hydraulic additive 8-15, rubble 5-8, stone flour 10-16, Sodium sulfate anhydrous.min(99) 0.5-2, water glass 3-5, calcium formiate 0.05-0.2, calcium lignin sulphonate 2-6.
2. phosphogypsum wall body brick according to claim 1 is characterized in that the weight part of said each raw material is: phosphogypsum 95-100, carbide slag 7-9, hydraulic additive 10-13, rubble 6-7, stone flour 12-14, Sodium sulfate anhydrous.min(99) 1.0-1.5, water glass 3.5-4.5, calcium formiate 0.075-0.15, calcium lignin sulphonate 3-5.
3. phosphogypsum wall body brick according to claim 2 is characterized in that the weight part of said each raw material is: phosphogypsum 100, carbide slag 8, hydraulic additive 12, rubble 6.5, stone flour 13, Sodium sulfate anhydrous.min(99) 1.25, water glass 4, calcium formiate 0.125, calcium lignin sulphonate 4.
4. the preparation method of claim 1 or 2 or 3 described phosphogypsum wall body bricks; It is characterized in that comprising following steps: phosphogypsum and the carbide slag of getting the metering ratio earlier mix stirring; And carry out water smoke spray; Compound to phosphogypsum and carbide slag carries out granulation, makes difform phosphogypsum and carbide slag composite particles, carries out air-dry and ageing then; , than being mixed, phosphogypsum and carbide slag composite particles, hydraulic additive, rubble, stone flour, Sodium sulfate anhydrous.min(99), water glass, calcium formiate, calcium lignin sulphonate add water to stir into distributed slurry by metering; The slurry injection molding machine is vibrated extrusion forming; Goods after the moulding are carried out natural curing, make the phosphogypsum wall body brick.
5. the preparation method of the phosphogypsum wall body brick of stating according to claim 4; It is characterized in that: in the whole process of preparation consumption of water be each raw material gross weight of phosphogypsum wall body brick 0.1-0.2 doubly, wherein phosphogypsum and carbide slag composite particles prepare that water smoke sprays the 8-12% that institute's water consumption accounts for the total water amount in the process.
6. the preparation method of the phosphogypsum wall body brick of stating according to claim 4, it is characterized in that: described hydraulic additive is ordinary Portland cement or quick hardening sulphoaluminate cement.
7. the preparation method of the phosphogypsum wall body brick of stating according to claim 4, it is characterized in that: the particle diameter of described phosphogypsum and carbide slag composite particles is 8-20mm.
8. the preparation method of the phosphogypsum wall body brick of stating according to claim 4, it is characterized in that: the forming pressure of said extrusion forming is 12-20MPa.
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| CN106699096A (en) * | 2017-01-13 | 2017-05-24 | 龚家红 | Method for preparing wall brick for environmental-protection buildings |
| CN110563367A (en) * | 2018-06-06 | 2019-12-13 | 北新集团建材股份有限公司 | Method for neutralizing phosphogypsum, fixing phosphorus and fixing fluorine and obtained phosphogypsum |
| CN109608225A (en) * | 2018-11-27 | 2019-04-12 | 湖北大学 | A kind of materials for wall composition and preparation method thereof |
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| CN1211550A (en) * | 1998-09-10 | 1999-03-24 | 大连市前进工业总公司 | Formulation and technology for steam-cured flyash bearing brick |
| CN1226529A (en) * | 1998-12-11 | 1999-08-25 | 杜世永 | Method for quickly producing flyash bricks without steam curings |
| CN1597596A (en) * | 2004-07-22 | 2005-03-23 | 辽宁中田干燥设备制造有限公司 | Fly ash brick unbaking shaping method |
| CN1844029A (en) * | 2006-04-28 | 2006-10-11 | 武汉理工大学 | Red mud autoclaved brick and preparation method thereof |
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