CN113185183A - Cement mineralizer and preparation method thereof - Google Patents
Cement mineralizer and preparation method thereof Download PDFInfo
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- CN113185183A CN113185183A CN202110657151.4A CN202110657151A CN113185183A CN 113185183 A CN113185183 A CN 113185183A CN 202110657151 A CN202110657151 A CN 202110657151A CN 113185183 A CN113185183 A CN 113185183A
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- cement
- mineralizer
- triisopropanolamine
- triethanolamine
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- 239000004568 cement Substances 0.000 title claims abstract description 195
- 238000002360 preparation method Methods 0.000 title abstract description 17
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 60
- 239000000203 mixture Substances 0.000 claims abstract description 40
- 238000003756 stirring Methods 0.000 claims abstract description 36
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 claims abstract description 33
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 33
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229920005610 lignin Polymers 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 235000013379 molasses Nutrition 0.000 claims abstract description 29
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000004202 carbamide Substances 0.000 claims abstract description 28
- 235000019738 Limestone Nutrition 0.000 claims abstract description 23
- 239000006028 limestone Substances 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000002440 industrial waste Substances 0.000 claims abstract description 19
- 239000003381 stabilizer Substances 0.000 claims abstract description 16
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 5
- 238000005303 weighing Methods 0.000 claims abstract description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 30
- 239000002893 slag Substances 0.000 claims description 26
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical group [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims description 20
- 235000019345 sodium thiosulphate Nutrition 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 239000010881 fly ash Substances 0.000 claims description 16
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical group [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 14
- 235000011152 sodium sulphate Nutrition 0.000 claims description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 9
- 229920005862 polyol Polymers 0.000 claims description 8
- 150000003077 polyols Chemical class 0.000 claims description 8
- VGTPCRGMBIAPIM-UHFFFAOYSA-M sodium thiocyanate Chemical compound [Na+].[S-]C#N VGTPCRGMBIAPIM-UHFFFAOYSA-M 0.000 claims description 6
- 239000002671 adjuvant Substances 0.000 claims description 4
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 3
- 239000004133 Sodium thiosulphate Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 4
- 235000011132 calcium sulphate Nutrition 0.000 description 25
- 230000000052 comparative effect Effects 0.000 description 22
- 238000000227 grinding Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 10
- 238000005265 energy consumption Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 239000004566 building material Substances 0.000 description 4
- 235000013877 carbamide Nutrition 0.000 description 4
- 239000011083 cement mortar Substances 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000033558 biomineral tissue development Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003334 potential effect Effects 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
Abstract
The invention provides a cement mineralizer and a preparation method thereof, and relates to the technical field of cement preparation. The cement mineralizer comprises the following components in parts by weight: 15-25 parts of triethanolamine, 10-15 parts of diethanol monoisopropanolamine, 5-15 parts of triisopropanolamine, 2-5 parts of auxiliary agent, 2-5 parts of stabilizer, 1-3 parts of lignin calcium sulfate, 1-3 parts of molasses, 2-5 parts of urea, 5-20 parts of water and 60-80 parts of industrial waste residue. The preparation method comprises the following steps: weighing raw materials in corresponding parts by weight, mixing triethanolamine, diethanol monoisopropanolamine, triisopropanolamine, an auxiliary agent, a stabilizer, lignin calcium sulfate, molasses, urea, polyhydric alcohol and water, and uniformly stirring to obtain a mixture; adding the industrial waste residue and the limestone powder into the mixture, uniformly stirring, and standing for 2-3 days to obtain a finished product. The cement mineralizer prepared by the invention can uniformly distribute cement particles, and improve the early and later strength of cement.
Description
Technical Field
The invention relates to the technical field of cement preparation, in particular to a cement mineralizer and a preparation method thereof.
Background
The modern society and the building industry are developed vigorously, the amount of the used traditional decorative building materials is huge, and meanwhile, along with the improvement of the national attention degree on infrastructure construction, energy conservation, emission reduction and environmental protection, the problem of how to reduce the energy consumption of building material products and improve the performance of the building material products is in urgent need of solving at present. As a building material with low price and wide application, the cement is applied to buildings more, so that the cement has very important significance in improving the product performance.
Small amounts of substances, called mineralizers, are added to the ingredients during the sintering of cement clinker to promote or control the formation of clinker minerals. The addition of mineralizer can promote sintering and improve some properties of the product. However, the existing cement mineralizers cannot completely excite the activity of the raw materials, so that the strength of the prepared cement is not high.
Disclosure of Invention
The invention aims to provide a cement mineralizer which has the advantage of exciting the strength of cement.
Another object of the present invention is to provide a method for preparing a cement mineralizer, which can produce a mineralizer capable of exciting the strength of cement.
The technical problem to be solved by the invention is realized by adopting the following technical scheme.
On one hand, the embodiment of the application provides a cement mineralizer, which comprises the following components in parts by weight: 15-25 parts of triethanolamine, 10-15 parts of diethanol monoisopropanolamine, 5-15 parts of triisopropanolamine, 2-5 parts of auxiliary agent, 2-5 parts of stabilizer, 1-3 parts of lignin calcium sulfate, 1-3 parts of molasses, 2-5 parts of urea, 5-20 parts of water and 60-80 parts of industrial waste residue.
On the other hand, the embodiment of the application provides a preparation method of a cement mineralizer, which comprises the following steps: weighing raw materials in corresponding parts by weight, mixing triethanolamine, diethanol monoisopropanolamine, triisopropanolamine, an auxiliary agent, a stabilizer, lignin calcium sulfate, molasses, urea, polyhydric alcohol and water, and uniformly stirring to obtain a mixture; adding the industrial waste residue and the limestone powder into the mixture, uniformly stirring, and standing for 2-3 days to obtain a finished cement mineralizer.
Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:
after the cement mineralizer prepared by the invention is added into cement, the hydration reaction of the cement can be effectively improved, the distribution of cement particles is uniform, and the potential activity of raw materials which are not fully exerted in the cement production process is excited, so that the early strength and the later strength of the cement are improved, the mineralizer has good adaptability with the cement, the consumption of the raw materials of the cement can be reduced, other cheaper mixed materials can be added, and better structural strength is obtained; the cement mineralizer can also increase the fluidity of cement, improve the grinding efficiency of the cement, reduce the grinding energy consumption of the cement and achieve the purposes of reducing cost and improving efficiency in the grinding process; in addition, the cement mortar can also play a role in resisting freezing and comprehensively playing a role in improving the performance of cement.
According to the invention, the triethanolamine is added into the formula, so that the early strength of the cement can be effectively improved, the cement grinding efficiency is improved, and the grinding energy consumption is reduced; the adaptability of the cement mineralizer to cement is improved by adding the diethanol monoisopropanolamine, so that the cement mineralizer has a small addition amount and has an outstanding effect on the performance of the cement, and the early strength and the later strength of the cement can be improved after the addition of the diethanol monoisopropanolamine; triisopropanolamine is added, so that the later strength of the cement can be effectively improved after the cement mineralizer is mixed with the cement; by adding the stabilizer (sodium thiosulfate), the adaptability of the cement mineralizer to cement can be effectively improved, and the cement mineralizer has a remarkable effect on the performance of the cement while the addition amount of the cement mineralizer is small; by adding the lignin calcium sulfate, the later strength of the cement can be effectively improved after the cement mineralizer is added, and the setting time of the cement can be adjusted, so that the setting time is more reasonable, and the strength of the cement is higher; the molasses is added and can be matched with the lignin calcium sulfate to jointly adjust the setting time of the cement, so that the setting time is more reasonable, the strength of the cement is higher, and the cement construction work is facilitated; by adding the urea, the antifreezing effect of the cement mineralizer on cement can be improved, the cement grinding efficiency can be improved, and the strength of the cement is effectively improved; the industrial waste residue is added, so that the method belongs to the category of solid waste, the waste is recycled, the cost can be obviously reduced, the energy conservation and the environmental protection are facilitated, and the industrial waste residue can be used as a carrier, so that the cement mineralizer can be conveniently dispersed in the cement, and the strength of the cement can be uniformly adjusted.
The cement mineralizer can be obtained by mixing triethanolamine, diethanol monoisopropanolamine, triisopropanolamine, an auxiliary agent, a stabilizer, lignin calcium sulfate, molasses, urea, polyol, limestone powder and water, mixing the mixture with industrial waste residues and limestone powder, and standing the mixture for 2 to 3 days, and has the advantages of simple operation and simple steps.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to specific examples.
The invention provides a cement mineralizer which comprises the following components in parts by weight: 15-25 parts of triethanolamine, 10-15 parts of diethanol monoisopropanolamine, 5-15 parts of triisopropanolamine, 2-5 parts of auxiliary agent, 2-5 parts of stabilizer, 1-3 parts of lignin calcium sulfate, 1-3 parts of molasses, 2-5 parts of urea, 5-20 parts of water and 60-80 parts of industrial waste residue. After the prepared cement mineralizer is added into cement, the hydration reaction of the cement can be effectively improved, the distribution of cement particles is uniform, and the potential activity of raw materials which are not fully exerted in the cement production process is excited, so that the early strength and the later strength of the cement are improved, the prepared cement mineralizer has good adaptability with the cement, the consumption of the raw materials of the cement can be reduced, other cheaper mixed materials can be added, and the better structural strength is not obtained; in the grinding process, the flowability of the cement can be increased, the grinding efficiency of the cement is improved, the grinding energy consumption of the cement is reduced, and the purposes of reducing cost and improving efficiency are achieved; in addition, the cement mortar can also play a role in resisting freezing and comprehensively playing a role in improving the performance of cement. The triethanolamine is added into the formula, so that the early strength of the cement can be effectively improved, the cement grinding efficiency is improved, and the grinding energy consumption is reduced; the adaptability of the cement mineralizer to cement is improved by adding the diethanol monoisopropanolamine, so that the cement mineralizer has a small addition amount and has an outstanding effect on the performance of the cement, and the early strength and the later strength of the cement can be improved after the addition of the diethanol monoisopropanolamine; triisopropanolamine is added, so that the later strength of the cement can be effectively improved after the cement mineralizer is mixed with the cement; by adding the stabilizer (sodium thiosulfate), the adaptability of the cement mineralizer to cement can be effectively improved, and the cement mineralizer has a remarkable effect on the performance of the cement while the addition amount of the cement mineralizer is small; by adding the lignin calcium sulfate, the later strength of the cement can be effectively improved after the cement mineralizer is added, and the setting time of the cement can be adjusted; the molasses is added, so that the molasses can be matched with the lignin calcium sulfate to adjust the setting time of the cement together, and the cement construction work is facilitated; by adding the urea, the antifreezing effect of the cement mineralizer on cement can be improved, the cement grinding efficiency can be improved, and the strength of the cement is effectively improved; the industrial waste residue is added, so that the method belongs to the category of solid waste, the waste is recycled, the cost can be obviously reduced, the energy conservation and the environmental protection are facilitated, and the industrial waste residue can be used as a carrier, so that the cement mineralizer can be conveniently dispersed in the cement, and the strength of the cement can be uniformly adjusted.
In some embodiments of the present invention, the above further comprises 15 to 20 parts by weight of a polyol. The polyalcohol can play a role similar to that of triethanolamine, can effectively improve the early strength of cement, improve the grinding efficiency of the cement, simultaneously reduce the grinding energy consumption, has lower price compared with the triethanolamine, and can effectively reduce the production cost of the cement mineralizer.
In some embodiments of the present invention, the polyol is at least one of ethylene glycol, glycerol, dipropylene glycol, and propylene glycol.
In some embodiments of the present invention, the above further comprises 10 to 30 parts by weight of limestone powder. Limestone powder can act as a carrier.
In some embodiments of the present invention, the cement mineralizer comprises the following components in parts by weight: 20 parts of triethanolamine, 12 parts of diethanol monoisopropanolamine, 10 parts of triisopropanolamine, 4 parts of an auxiliary agent, 4 parts of a stabilizer, 2 parts of lignin calcium sulfate, 2 parts of molasses, 4 parts of urea, 13 parts of water, 18 parts of polyol, 20 parts of limestone powder and 70 parts of industrial waste residues.
In some embodiments of the invention, the adjuvant is sodium sulfate or sodium thiocyanate.
In some embodiments of the invention, the stabilizer is sodium thiosulfate. The sodium thiosulfate can effectively improve the adaptability of the cement mineralizer to cement, so that the cement mineralizer has a small addition amount and has a remarkable effect on the performance of the cement.
In some embodiments of the present invention, the industrial waste residue is at least two of steel slag, slag and fly ash. The steel slag, the furnace slag and the fly ash belong to the category of solid wastes, the wastes are recycled, the cost can be obviously reduced, the energy conservation and the environmental protection are facilitated, and in addition, the steel slag, the furnace slag and the fly ash also have a mineralization effect.
In some embodiments of the present invention, the size of the industrial waste residue is 80-200 mesh. The size of the cement is 80-200 meshes, and the cement can be uniformly mixed in the cement, so that the mineralization effect on the cement is uniform, and the performance of the cement is stable.
The invention also provides a preparation method of the cement mineralizer, which comprises the following steps: weighing raw materials in corresponding parts by weight, mixing triethanolamine, diethanol monoisopropanolamine, triisopropanolamine, an auxiliary agent, a stabilizer, lignin calcium sulfate, molasses, urea, polyhydric alcohol and water, and uniformly stirring to obtain a mixture; adding the industrial waste residue and the limestone powder into the mixture, uniformly stirring, and standing for 2-3 days to obtain a finished cement mineralizer. The cement mineralizer can be obtained by mixing triethanolamine, diethanol monoisopropanolamine, triisopropanolamine, an auxiliary agent, a stabilizer, lignin calcium sulfate, molasses, urea, polyol, limestone powder and water, mixing the mixture with industrial waste residues and limestone powder, and standing the mixture for 2 to 3 days, and has the advantages of simple operation and simple steps. In addition, the above operations were all carried out at room temperature.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 1
A preparation method of a cement mineralizer comprises the following steps:
mixing 15g of triethanolamine, 10g of diethanol monoisopropanolamine, 5g of triisopropanolamine, 2g of sodium sulfate, 2g of sodium thiosulfate, 1g of lignin calcium sulfate, 1g of molasses, 2g of urea and 5g of water, and uniformly stirring to obtain a mixture;
and adding 30g of steel slag and 30g of furnace slag into the mixture, uniformly stirring, and standing for 2 days to obtain a finished cement mineralizer.
Example 2
A preparation method of a cement mineralizer comprises the following steps:
mixing 20g of triethanolamine, 12g of diethanol monoisopropanolamine, 10g of triisopropanolamine, 4g of sodium sulfate, 4g of sodium thiosulfate, 2g of lignin calcium sulfate, 2g of molasses, 4g of urea and 13g of water, and uniformly stirring to obtain a mixture;
adding 35g of steel slag and 35g of fly ash into the mixture, uniformly stirring, and standing for 3 days to obtain a finished product of the cement mineralizer.
Example 3
A preparation method of a cement mineralizer comprises the following steps:
mixing 25g of triethanolamine, 15g of diethanol monoisopropanolamine, 15g of triisopropanolamine, 5g of sodium sulfate, 5g of sodium thiosulfate, 3g of lignin calcium sulfate, 3g of molasses, 5g of urea and 20g of water, and uniformly stirring to obtain a mixture;
and adding 40g of slag and 40g of fly ash into the mixture, uniformly stirring, and standing for 3 days to obtain a finished cement mineralizer.
Example 4
A preparation method of a cement mineralizer comprises the following steps:
mixing 15g of triethanolamine, 10g of diethanol monoisopropanolamine, 5g of triisopropanolamine, 2g of sodium sulfate, 2g of sodium thiosulfate, 1g of lignin calcium sulfate, 1g of molasses, 2g of urea, 15g of ethylene glycol and 5g of water, and uniformly stirring to obtain a mixture;
and adding 30g of steel slag, 10g of limestone powder and 30g of furnace slag into the mixture, uniformly stirring, and standing for 2 days to obtain a finished cement mineralizer.
Example 5
A preparation method of a cement mineralizer comprises the following steps:
mixing 20g of triethanolamine, 12g of diethanol monoisopropanolamine, 10g of triisopropanolamine, 4g of sodium sulfate, 4g of sodium thiosulfate, 2g of lignin calcium sulfate, 2g of molasses, 4g of urea, 18g of glycerol and 13g of water, and uniformly stirring to obtain a mixture;
adding 35g of steel slag, 20g of limestone powder and 35g of fly ash into the mixture, uniformly stirring, and standing for 3 days to obtain a finished product of the cement mineralizer.
Example 6
A preparation method of a cement mineralizer comprises the following steps:
mixing 20g of triethanolamine, 12g of diethanol monoisopropanolamine, 10g of triisopropanolamine, 4g of sodium sulfate, 4g of sodium thiosulfate, 2g of lignin calcium sulfate, 2g of molasses, 4g of urea, 10g of diglycerol, 10g of propylene glycol and 13g of water, and uniformly stirring to obtain a mixture;
and adding 40g of steel slag, 30g of limestone powder and 40g of fly ash into the mixture, uniformly stirring, and standing for 3 days to obtain a finished product of the cement mineralizer.
Example 7
A preparation method of a cement mineralizer comprises the following steps:
mixing 20g of triethanolamine, 12g of diethanol monoisopropanolamine, 10g of triisopropanolamine, 4g of sodium sulfate, 4g of sodium thiosulfate, 2g of lignin calcium sulfate, 2g of molasses, 4g of urea, 18g of glycerol and 13g of water, and uniformly stirring to obtain a mixture;
and adding 20g of steel slag, 20g of furnace slag, 20g of limestone powder and 30g of fly ash into the mixture, uniformly stirring, and standing for 3 days to obtain a finished cement mineralizer.
Example 8
This example differs from example 2 in that the adjuvant is sodium thiocyanate.
A preparation method of a cement mineralizer comprises the following steps:
mixing 20g of triethanolamine, 12g of diethanol monoisopropanolamine, 10g of triisopropanolamine, 4g of sodium thiocyanate, 4g of sodium thiosulfate, 2g of calcium sulfate lignin, 2g of molasses, 4g of urea and 13g of water, and uniformly stirring to obtain a mixture;
adding 35g of steel slag and 35g of fly ash into the mixture, uniformly stirring, and standing for 3 days to obtain a finished product of the cement mineralizer.
Example 9
This example differs from example 5 in that the adjuvant is sodium thiocyanate.
Mixing 20g of triethanolamine, 12g of diethanol monoisopropanolamine, 10g of triisopropanolamine, 4g of sodium thiocyanate, 4g of sodium thiosulfate, 2g of calcium sulfate lignin, 2g of molasses, 4g of urea, 18g of glycerol and 13g of water, and uniformly stirring to obtain a mixture;
adding 35g of steel slag, 20g of limestone powder and 35g of fly ash into the mixture, uniformly stirring, and standing for 3 days to obtain a finished product of the cement mineralizer.
Comparative example 1
This comparative example differs from example 5 in that triethanolamine and diethanol monoisopropanolamine were not added.
Mixing 10g of triisopropanolamine, 4g of sodium sulfate, 4g of sodium thiosulfate, 2g of lignin calcium sulfate, 2g of molasses, 4g of urea, 18g of glycerol and 13g of water, and uniformly stirring to obtain a mixture;
and adding 20g of steel slag, 20g of furnace slag, 20g of limestone powder and 30g of fly ash into the mixture, uniformly stirring, and standing for 3 days to obtain a finished cement mineralizer.
Comparative example 2
This comparative example differs from example 5 in that triisopropanolamine and diethanolisanolamine were not added.
Mixing 20g of triethanolamine, 4g of sodium sulfate, 4g of sodium thiosulfate, 2g of lignin calcium sulfate, 2g of molasses, 4g of urea, 18g of glycerol and 13g of water, and uniformly stirring to obtain a mixture;
adding 35g of steel slag, 20g of limestone powder and 35g of fly ash into the mixture, uniformly stirring, and standing for 3 days to obtain a finished product of the cement mineralizer.
Comparative example 3
This comparative example differs from example 5 in that no calcium sulphate lignin and no molasses were added.
Mixing 20g of triethanolamine, 12g of diethanolisanolamine, 10g of triisopropanolamine, 4g of sodium sulfate, 4g of sodium thiosulfate, 4g of urea, 18g of glycerol and 13g of water, and uniformly stirring to obtain a mixture;
adding 35g of steel slag, 20g of limestone powder and 35g of fly ash into the mixture, uniformly stirring, and standing for 3 days to obtain a finished product of the cement mineralizer.
Comparative example 4
This comparative example differs from example 5 in that triethanolamine and urea were not added.
Mixing 12g of diethanol monoisopropanolamine, 10g of triisopropanolamine, 4g of sodium sulfate, 4g of sodium thiosulfate, 2g of lignin calcium sulfate, 2g of molasses, 18g of glycerol and 13g of water, and uniformly stirring to obtain a mixture;
adding 35g of steel slag, 20g of limestone powder and 35g of fly ash into the mixture, uniformly stirring, and standing for 3 days to obtain a finished product of the cement mineralizer.
Comparative example 5
This comparative example differs from example 5 in that no diethanol monoisopropanolamine and no sodium thiosulfate were added.
Mixing 20g of triethanolamine, 10g of triisopropanolamine, 4g of sodium sulfate, 2g of lignin calcium sulfate, 2g of molasses, 4g of urea, 18g of glycerol and 13g of water, and uniformly stirring to obtain a mixture;
adding 35g of steel slag, 20g of limestone powder and 35g of fly ash into the mixture, uniformly stirring, and standing for 3 days to obtain a finished product of the cement mineralizer.
Examples of the experiments
The cement mineralizer prepared in examples 1-9 and comparative examples 1-4 was used in the sintering process of cement clinker, and the fineness, stability, setting time, flexural strength and compressive strength of the obtained cement clinker were measured according to GB/T8074-2008 "determination method of specific surface area of cement-Bo's method", GB/T1346-2011 "inspection method of standard consistency of cement, water consumption, setting time and stability", and GB/T17671-1999 "inspection method of strength of cement mortar (ISO method)", and the results of the measurements are shown in tables 1-5. Table 1 shows the results of the fineness measurement, table 2 shows the results of the stability measurement, table 3 shows the results of the setting time measurement, table 4 shows the results of the flexural strength measurement, and table 5 shows the results of the compressive strength measurement.
In the detection, the specific surface area of the item with fineness for checking is more than or equal to 300m2The/kg is qualified; in the stability detection, a boiling method is used for checking, and no crack or bending is qualified after the test; the initial setting time of the item of the setting time is greater than or equal to 45min and qualified, and the final setting time is less than or equal to 390min and qualified; the flexural strength of the product is qualified when the flexural strength is greater than or equal to 3.5Mpa in 3 days, and the flexural strength is greater than or equal to 6.5Mpa in 28 days; the compressive strength of the item is qualified when the compressive strength is greater than or equal to 17MPa in 3 days, and is qualified when the compressive strength is greater than or equal to 42.5MPa in 28 days.
TABLE 1
Comparing table 1 with analysis, it can be seen that the specific surface area of the cement mineralizer prepared in example 5 is the largest, and since the larger the specific surface area is, the greater the strength is, it can be seen that the cement mineralizer prepared in example 5 has the best strength. Comparing with comparative examples 1 to 5, it can be seen that the cement mineralizers prepared in comparative examples 1 and 2 are not qualified, while the specific surface area of comparative example 5 is much smaller than that of example 5, and it can be seen that triethanolamine, diethanol monoisopropanolamine and triisopropanolamine have a great influence on the strength of the prepared cement mineralizer.
TABLE 2
Analysis and comparison of table 2 show that comparative examples 1, 2 and 5 are not qualified, and that neither comparative example 1 nor comparative example 2 has the addition of diethanol monoisopropanolamine, and comparative example 5 has the addition of diethanol monoisopropanolamine and sodium thiosulfate.
TABLE 3
The initial setting time is the time required from the mixing of cement and water until the cement paste begins to lose plasticity. The setting time is the time required from when the cement mixes with water until the cement paste loses plasticity completely and begins to develop strength. Since cement sets, i.e. the cement reacts chemically with water and air, it takes a certain amount of time, and the longer the cement sets, the higher the cement set percentage and the higher the hardness. Comparing table 3 with analysis, it can be seen that the initial setting time of comparative example 2 is too short compared to the rest of the sample time, and the final setting time is too short, it can be seen that the hardness of the cement mineralizer of comparative example 2 is poor, compared to that of the cement mineralizer of example 5, the initial setting time of the mineralization of the cement is long, which means that the time required for losing plasticity is longer; the final setting time is longest and the time required for generating the intensity is longer, so that the intensity can be estimated to be optimal.
TABLE 4
Analyzing and comparing table 4, it can be seen that the cement mineralizer prepared in example 5 has the most improved flexural strength to cement, and the strength is the highest in 3 days and 28 days, compared to the cement mineralizer prepared in comparative examples 1 and 2, which has the least improved flexural strength to cement, indicating that the lack of triethanolamine, diethanol monoisopropanolamine and triisopropanolamine has a great influence on the flexural strength of the prepared cement mineralizer.
TABLE 5
Analyzing and comparing table 5, it can be seen that the cement mineralizer prepared in example 5 has the most improved compressive strength to cement, and the strength is the highest in 3 days and 28 days, compared to the cement mineralizer prepared in comparative examples 1 and 2, which has the least improved flexural strength to cement, indicating that the lack of triethanolamine, diethanol monoisopropanolamine and triisopropanolamine has a great influence on the compressive strength of the prepared cement mineralizer.
In conclusion, after the cement mineralizer prepared by the invention is added into cement, the hydration reaction of the cement can be effectively improved, the distribution of cement particles is uniform, and the potential activity of raw materials is not fully exerted in the cement production process is excited, so that the early and later strength of the cement is improved, the mineralizer has good adaptability with the cement, the consumption of the raw materials of the cement can be reduced, other cheaper mixed materials can be added, and the better structural strength is not obtained; in the grinding process, the flowability of the cement can be increased, the grinding efficiency of the cement is improved, the grinding energy consumption of the cement is reduced, and the purposes of reducing cost and improving efficiency are achieved; in addition, the cement mortar can also play a role in resisting freezing and comprehensively playing a role in improving the performance of cement.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (10)
1. The cement mineralizer is characterized by comprising the following components in parts by weight: 15-25 parts of triethanolamine, 10-15 parts of diethanol monoisopropanolamine, 5-15 parts of triisopropanolamine, 2-5 parts of auxiliary agent, 2-5 parts of stabilizer, 1-3 parts of lignin calcium sulfate, 1-3 parts of molasses, 2-5 parts of urea, 5-20 parts of water and 60-80 parts of industrial waste residue.
2. A cement mineralizer according to claim 1, characterized by further comprising 15-20 parts by weight of a polyol.
3. A cement mineralising agent as claimed in claim 2, wherein the polyol is at least one of ethylene glycol, glycerol, dipropylene glycol and propylene glycol.
4. A cement mineralizer according to claim 2, further comprising 10-30 parts by weight of limestone powder.
5. A cement mineralizer according to claim 4, characterized by comprising the following components in parts by weight: 20 parts of triethanolamine, 12 parts of diethanol monoisopropanolamine, 10 parts of triisopropanolamine, 4 parts of an auxiliary agent, 4 parts of a stabilizer, 2 parts of lignin calcium sulfate, 2 parts of molasses, 4 parts of urea, 13 parts of water, 18 parts of polyol, 20 parts of limestone powder and 70 parts of industrial waste residues.
6. A cement mineralising agent as claimed in claim 1, wherein the adjuvant is sodium sulphate or sodium thiocyanate.
7. A cement mineralising agent as claimed in claim 1, wherein the stabiliser is sodium thiosulphate.
8. A cement mineralizer according to claim 1, wherein the industrial waste residue is at least two of steel slag, slag and fly ash.
9. A cement mineralizer according to claim 8, characterized in that the industrial residue has a size of 80-200 mesh.
10. The method of claim 4, comprising the steps of:
weighing raw materials in corresponding parts by weight, mixing triethanolamine, diethanol monoisopropanolamine, triisopropanolamine, an auxiliary agent, a stabilizer, lignin calcium sulfate, molasses, urea, polyhydric alcohol and water, and uniformly stirring to obtain a mixture;
adding the industrial waste residue and the limestone powder into the mixture, uniformly stirring, and standing for 2-3 days to obtain a finished cement mineralizer.
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