CN112456829A - Process for producing cement by using solid waste - Google Patents
Process for producing cement by using solid waste Download PDFInfo
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- CN112456829A CN112456829A CN202110008064.6A CN202110008064A CN112456829A CN 112456829 A CN112456829 A CN 112456829A CN 202110008064 A CN202110008064 A CN 202110008064A CN 112456829 A CN112456829 A CN 112456829A
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- 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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/26—Cements from oil shales, residues or waste other than slag from raw materials containing flue dust, i.e. fly ash
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to the technical field of cement preparation by comprehensively utilizing solid wastes, in particular to a process method for producing cement by using solid wastes, which comprises the following steps: s1, crushing the slag and the coal gangue into particles with the diameter of 4mm to obtain solid waste particles, adding the solid waste particles into a stirrer, and adding the fly ash, the basalt fibers and the foamed polystyrene particles into the stirrer to mix for 4min to obtain a mixed material; s2, injecting the mixed material into a ball mill, adding a proper amount of water into the ball mill, and grinding by the ball mill to obtain cement slurry; and S3, injecting the cement slurry into a slurry storage tank through a spiral conveying pipe, aging for 8-10 hours, adding water in the aging process, and fully stirring to uniformly mix the cement slurry to obtain an aging solution. The cement produced by the method can effectively keep the wetness of the cement and prevent the cement from hardening too fast, and the method utilizes industrial solid wastes to prepare the cement, thereby achieving the purposes of harmless wastes and reasonable resource utilization.
Description
Technical Field
The invention relates to the technical field of cement preparation by comprehensively utilizing solid wastes, in particular to a process method for producing cement by using solid wastes.
Background
The cement is a powdery hydraulic inorganic cementing material, is added with water and stirred into slurry, can be hardened in the air or better in water, can firmly bond sand, stone and other materials together, and is used as an important cementing material for a long time and widely applied to civil construction, water conservancy, national defense and other projects.
The existing cement has the problems of high production cost, high energy consumption and complex process, a large amount of building materials are needed in the current economic construction of China on one hand, a large amount of industrial solid wastes and construction wastes need to be recycled on the other hand, the resource can be saved and the industrial solid wastes can be recycled by preparing the high-performance solid waste cement by taking the industrial solid wastes which are difficult to treat such as phosphogypsum, blast furnace slag and the like as main raw materials, but the water in the cement can be volatilized easily in a short time after the cement is prepared, so that the cement is dried completely without being used, and therefore, a process method for producing the cement by using the solid wastes is provided for solving the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a process method for producing cement by using solid wastes.
A process for producing cement by using solid wastes comprises the following steps:
s1, crushing the slag and the coal gangue into particles with the diameter of 4mm to obtain solid waste particles, adding the solid waste particles into a stirrer, and adding the fly ash, the basalt fibers and the foamed polystyrene particles into the stirrer to mix for 4min to obtain a mixed material;
s2, injecting the mixed material into a ball mill, adding a proper amount of water into the ball mill, and grinding by the ball mill to obtain cement slurry;
s3, injecting the cement slurry into a slurry storage tank through a spiral conveying pipe, aging for 8-10 hours, adding water in the aging process, and fully stirring to uniformly mix the cement slurry to obtain an aging solution;
s4, putting the aging solution into a rotary cement kiln for calcination, and cooling after calcination to obtain cement clinker;
s5, adding the cement clinker into a mixer, adding water glass, anhydrous calcium sulfate, calcium lignosulfonate, isobutene triethoxysilane and modified potassium polymetaphosphate into the mixer, and stirring at the speed of 120r/min for 15-30 min to obtain the finished cement.
Preferably, the raw materials in S1-S5 are as follows according to parts by mass: 75-125 parts of furnace slag, 75-95 parts of coal gangue, 65-85 parts of fly ash, 35-45 parts of basalt fiber, 17-23 parts of expanded polystyrene particles, 12-16 parts of water glass, 13-15 parts of anhydrous calcium sulfate, 8-12 parts of calcium lignosulfonate, 8-12 parts of isobutylene triethoxysilane and 6-9 parts of modified potassium metaphosphate.
Preferably, the operation process of the ball mill is as follows: adding zirconia ball grinding beads according to the ball material mass ratio of 10:1, and carrying out ball-milling and mixing under the conditions of revolution rotating speed of 200-300 r/min and rotation rotating speed of 400-600 r/min.
Preferably, the stirring and mixing process in S3 is as follows: stirring at 15r/min for 3min, then at 25r/min for 4min, and then at 8r/min until the end.
Preferably, the modified potassium polymetaphosphate is prepared by taking potassium polymetaphosphate and hydroxypropyl methyl cellulose as raw materials and aniline methyl trimethoxy silane as a coupling agent.
Preferably, the preparation method of the modified potassium polymetaphosphate comprises the following steps: mixing potassium polymetaphosphate and hydroxypropyl methylcellulose, adding into aniline methyltrimethoxysilane, mixing and stirring until completely fusing, and heating in water bath at 75 deg.C for 15min to obtain modified potassium polymetaphosphate.
Preferably, the calcination temperature of the cement rotary kiln in the S4 is 1300-1450 ℃.
Preferably, the mass ratio of the modified potassium polymetaphosphate in S5 to the cement clinker is (2-5): 1.
the invention has the beneficial effects that:
the modified potassium polymetaphosphate is modified by the potassium polymetaphosphate, the hydroxypropyl methylcellulose and the aniline methyl trimethoxy silane are added, the modified potassium polymetaphosphate is formed by a water bath method, and meanwhile, the proportion of the modified potassium polymetaphosphate to cement clinker during production and preparation of cement is properly controlled, so that the produced cement can effectively keep the wettability of the cement and prevent the cement from being hardened too quickly.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
A process for producing cement by using solid wastes comprises the following steps:
s1, crushing the slag and the coal gangue into particles with the diameter of 4mm to obtain solid waste particles, adding the solid waste particles into a stirrer, and adding the fly ash, the basalt fibers and the foamed polystyrene particles into the stirrer to mix for 4min to obtain a mixed material;
s2, injecting the mixed material into a ball mill, adding a proper amount of water into the ball mill, and grinding by the ball mill to obtain cement slurry;
s3, injecting the cement grout into a grout storage tank through a spiral conveying pipe for aging for 8 hours, adding water in the aging process, fully stirring for 3 minutes at a speed of 15r/min, then stirring for 4 minutes at a speed of 25r/min, and then stirring at a speed of 8r/min until the stirring is finished, so that the cement grout is uniformly mixed to obtain an aging liquid;
s4, putting the aging solution into a rotary cement kiln, calcining at 1300 ℃, and cooling after calcining to obtain cement clinker;
s5, adding cement clinker into a mixer, adding water glass, anhydrous calcium sulfate, calcium lignosulfonate, isobutene triethoxysilane and modified potassium polymetaphosphate into the mixer, and stirring at the speed of 120r/min for 18min to obtain finished cement;
the raw materials are as follows according to parts by mass: 75-125 parts of furnace slag, 75-95 parts of coal gangue, 65-85 parts of fly ash, 35-45 parts of basalt fiber, 17-23 parts of expanded polystyrene particles, 12-16 parts of water glass, 13-15 parts of anhydrous calcium sulfate, 8-12 parts of calcium lignosulfonate, 8-12 parts of isobutylene triethoxysilane and 6-9 parts of modified potassium polymetaphosphate, wherein the mass ratio of the modified potassium polymetaphosphate to the cement clinker is (2-5): 1.
in addition, the operation process of the ball mill is as follows: adding zirconia ball grinding beads according to the ball material mass ratio of 10:1, and carrying out ball-milling and mixing under the conditions of revolution rotating speed of 200r/min and rotation rotating speed of 400 r/min;
the modified potassium polymetaphosphate is prepared by taking potassium polymetaphosphate and hydroxypropyl methylcellulose as raw materials and aniline methyl trimethoxy silane as a coupling agent, and the preparation method comprises the following steps: mixing potassium polymetaphosphate and hydroxypropyl methylcellulose, adding into aniline methyltrimethoxysilane, mixing and stirring until completely fusing, and heating in water bath at 75 deg.C for 15min to obtain modified potassium polymetaphosphate.
The first embodiment is as follows:
75 parts of furnace slag, 75 parts of coal gangue, 65 parts of fly ash, 35 parts of basalt fiber, 17 parts of expanded polystyrene particles, 12 parts of water glass, 13 parts of anhydrous calcium sulfate, 8 parts of calcium lignosulfonate, 8 parts of isobutene triethoxysilane and 6 parts of modified potassium metaphosphate.
Example two:
100 parts of furnace slag, 85 parts of coal gangue, 75 parts of fly ash, 40 parts of basalt fiber, 20 parts of expanded polystyrene particles, 14 parts of water glass, 14 parts of anhydrous calcium sulfate, 10 parts of calcium lignosulfonate, 10 parts of isobutene triethoxysilane and 7 parts of modified potassium polymetaphosphate.
Example three:
125 parts of furnace slag, 95 parts of coal gangue, 85 parts of fly ash, 45 parts of basalt fiber, 23 parts of expanded polystyrene particles, 16 parts of water glass, 15 parts of anhydrous calcium sulfate, 12 parts of calcium lignosulfonate, 12 parts of isobutene triethoxysilane and 9 parts of modified potassium polymetaphosphate.
In the first to third embodiments, the cement is prepared by the following process method, which comprises the following specific steps:
s1, crushing the slag and the coal gangue into particles with the diameter of 4mm to obtain solid waste particles, adding the solid waste particles into a stirrer, and adding the fly ash, the basalt fibers and the foamed polystyrene particles into the stirrer to mix for 4min to obtain a mixed material;
s2, injecting the mixed material into a ball mill, adding a proper amount of water into the ball mill, and grinding by the ball mill to obtain cement slurry;
s3, injecting the cement grout into a grout storage tank through a spiral conveying pipe for aging for 8 hours, adding water in the aging process, fully stirring for 3 minutes at a speed of 15r/min, then stirring for 4 minutes at a speed of 25r/min, and then stirring at a speed of 8r/min until the stirring is finished, so that the cement grout is uniformly mixed to obtain an aging liquid;
s4, putting the aging solution into a rotary cement kiln, calcining at 1300 ℃, and cooling after calcining to obtain cement clinker;
s5, adding the cement clinker into a mixer, adding the water glass, the anhydrous calcium sulfate, the calcium lignosulfonate, the isobutene triethoxysilane and the modified potassium polymetaphosphate into the mixer, and stirring at the speed of 120r/min for 18min to obtain the finished cement.
Test one: determination of the Cement wettability (i.e. the degree of hardening)
Comparative example one:
75 parts of furnace slag, 75 parts of coal gangue, 65 parts of fly ash, 35 parts of basalt fiber, 17 parts of expanded polystyrene particles, 12 parts of water glass, 13 parts of anhydrous calcium sulfate, 8 parts of calcium lignosulfonate and 8 parts of isobutylene triethoxysilane.
Comparative example two:
100 parts of furnace slag, 85 parts of coal gangue, 75 parts of fly ash, 40 parts of basalt fiber, 20 parts of expanded polystyrene particles, 14 parts of water glass, 14 parts of anhydrous calcium sulfate, 10 parts of calcium lignosulfonate and 10 parts of isobutylene triethoxysilane.
Comparative example three:
125 parts of furnace slag, 95 parts of coal gangue, 85 parts of fly ash, 45 parts of basalt fiber, 23 parts of expanded polystyrene particles, 16 parts of water glass, 15 parts of anhydrous calcium sulfate, 12 parts of calcium lignosulfonate and 12 parts of isobutylene triethoxysilane.
In the first comparative example to the third comparative example, the cement is prepared by the following process method, and the concrete steps are as follows:
s1, crushing the slag and the coal gangue into particles with the diameter of 4mm to obtain solid waste particles, adding the solid waste particles into a stirrer, and adding the fly ash, the basalt fibers and the foamed polystyrene particles into the stirrer to mix for 4min to obtain a mixed material;
s2, injecting the mixed material into a ball mill, adding a proper amount of water into the ball mill, and grinding by the ball mill to obtain cement slurry;
s3, injecting the cement grout into a grout storage tank through a spiral conveying pipe for aging for 8 hours, adding water in the aging process, fully stirring for 3 minutes at a speed of 15r/min, then stirring for 4 minutes at a speed of 25r/min, and then stirring at a speed of 8r/min until the stirring is finished, so that the cement grout is uniformly mixed to obtain an aging liquid;
s4, putting the aging solution into a rotary cement kiln, calcining at 1300 ℃, and cooling after calcining to obtain cement clinker;
s5, adding the cement clinker into a mixer, adding the water glass, the anhydrous calcium sulfate, the calcium lignosulfonate and the isobutene triethoxysilane into the mixer, and stirring at the speed of 120r/min for 18min to obtain the finished cement.
Reference example one:
75 parts of furnace slag, 75 parts of coal gangue, 65 parts of fly ash, 35 parts of basalt fiber, 17 parts of expanded polystyrene particles, 12 parts of water glass, 13 parts of anhydrous calcium sulfate, 8 parts of calcium lignosulfonate, 8 parts of isobutene triethoxysilane and 6 parts of potassium polymetaphosphate.
Reference example two:
100 parts of furnace slag, 85 parts of coal gangue, 75 parts of fly ash, 40 parts of basalt fiber, 20 parts of expanded polystyrene particles, 14 parts of water glass, 14 parts of anhydrous calcium sulfate, 10 parts of calcium lignosulfonate, 10 parts of isobutene triethoxysilane and 7 parts of potassium polymetaphosphate.
Reference example three:
125 parts of furnace slag, 95 parts of coal gangue, 85 parts of fly ash, 45 parts of basalt fiber, 23 parts of expanded polystyrene particles, 16 parts of water glass, 15 parts of anhydrous calcium sulfate, 12 parts of calcium lignosulfonate, 12 parts of isobutene triethoxysilane and 9 parts of potassium polymetaphosphate.
In the first reference example to the third reference example, the modified potassium polymetaphosphate in the examples is replaced by unmodified potassium polymetaphosphate, and the cement is prepared by the following process method, which comprises the following specific steps:
s1, crushing the slag and the coal gangue into particles with the diameter of 4mm to obtain solid waste particles, adding the solid waste particles into a stirrer, and adding the fly ash, the basalt fibers and the foamed polystyrene particles into the stirrer to mix for 4min to obtain a mixed material;
s2, injecting the mixed material into a ball mill, adding a proper amount of water into the ball mill, and grinding by the ball mill to obtain cement slurry;
s3, injecting the cement grout into a grout storage tank through a spiral conveying pipe for aging for 8 hours, adding water in the aging process, fully stirring for 3 minutes at a speed of 15r/min, then stirring for 4 minutes at a speed of 25r/min, and then stirring at a speed of 8r/min until the stirring is finished, so that the cement grout is uniformly mixed to obtain an aging liquid;
s4, putting the aging solution into a rotary cement kiln, calcining at 1300 ℃, and cooling after calcining to obtain cement clinker;
s5, adding the cement clinker into a mixer, adding the water glass, the anhydrous calcium sulfate, the calcium lignosulfonate, the isobutylene triethoxysilane and the potassium polymetaphosphate into the mixer, and stirring at the speed of 120r/min for 18min to obtain the finished cement.
The cement in the above examples, comparative examples and reference examples was tested according to the cement setting time test method specified in GB/T1346-2001, and the initial setting time and final setting time of the cement were recorded in the following table:
as can be seen from the above data, the cements in the comparative examples without any adjuvant added are the cements which start to set at the earliest, then the cements in the reference examples, and the latest cements in the examples, that is, the cements whose wettability is maintained for the longest time are the cements prepared in the examples, then the cements prepared in the reference examples, and the cement prepared in the comparative example has the worst effect, and it can be further found from the examples and the reference examples that the retention effect of the wettability is more durable by the modified potassium polymetaphosphate, and thus it can be seen that the addition of the modified potassium polymetaphosphate has a great improvement effect on the wettability maintenance of the cement.
And (2) test II: measuring the mass ratio of the modified potassium polymetaphosphate to the cement clinker
Example four:
115 parts of furnace slag, 90 parts of coal gangue, 77 parts of fly ash, 38 parts of basalt fiber, 20 parts of expanded polystyrene particles, 14 parts of water glass, 14 parts of anhydrous calcium sulfate, 9 parts of calcium lignosulfonate, 10 parts of isobutene triethoxysilane and 8 parts of modified potassium polymetaphosphate, wherein the mass ratio of the modified potassium polymetaphosphate to the cement clinker is 2: 1.
Example five:
115 parts of furnace slag, 90 parts of coal gangue, 77 parts of fly ash, 38 parts of basalt fiber, 20 parts of expanded polystyrene particles, 14 parts of water glass, 14 parts of anhydrous calcium sulfate, 9 parts of calcium lignosulfonate, 10 parts of isobutene triethoxysilane and 8 parts of modified potassium polymetaphosphate, wherein the mass ratio of the modified potassium polymetaphosphate to the cement clinker is 3: 1.
Example six:
115 parts of furnace slag, 90 parts of coal gangue, 77 parts of fly ash, 38 parts of basalt fiber, 20 parts of expanded polystyrene particles, 14 parts of water glass, 14 parts of anhydrous calcium sulfate, 9 parts of calcium lignosulfonate, 10 parts of isobutene triethoxysilane and 8 parts of modified potassium polymetaphosphate, wherein the mass ratio of the modified potassium polymetaphosphate to the cement clinker is 4: 1.
Example seven:
115 parts of furnace slag, 90 parts of coal gangue, 77 parts of fly ash, 38 parts of basalt fiber, 20 parts of expanded polystyrene particles, 14 parts of water glass, 14 parts of anhydrous calcium sulfate, 9 parts of calcium lignosulfonate, 10 parts of isobutene triethoxysilane and 8 parts of modified potassium polymetaphosphate, wherein the mass ratio of the modified potassium polymetaphosphate to the cement clinker is 5: 1.
Comparative example four:
115 parts of furnace slag, 90 parts of coal gangue, 77 parts of fly ash, 38 parts of basalt fiber, 20 parts of expanded polystyrene particles, 14 parts of water glass, 14 parts of anhydrous calcium sulfate, 9 parts of calcium lignosulfonate, 10 parts of isobutene triethoxysilane and 8 parts of modified potassium polymetaphosphate, wherein the mass ratio of the modified potassium polymetaphosphate to the cement clinker is 1: 1.
Comparative example five:
115 parts of furnace slag, 90 parts of coal gangue, 77 parts of fly ash, 38 parts of basalt fiber, 20 parts of expanded polystyrene particles, 14 parts of water glass, 14 parts of anhydrous calcium sulfate, 9 parts of calcium lignosulfonate, 10 parts of isobutene triethoxysilane and 8 parts of modified potassium polymetaphosphate, wherein the mass ratio of the modified potassium polymetaphosphate to the cement clinker is 6: 1.
Comparative example six:
115 parts of furnace slag, 90 parts of coal gangue, 77 parts of fly ash, 38 parts of basalt fiber, 20 parts of expanded polystyrene particles, 14 parts of water glass, 14 parts of anhydrous calcium sulfate, 9 parts of calcium lignosulfonate, 10 parts of isobutene triethoxysilane and 8 parts of modified potassium polymetaphosphate, wherein the mass ratio of the modified potassium polymetaphosphate to the cement clinker is 7: 1.
The cement is prepared by the following process method in the fourth to seventh examples and the fourth to sixth comparative examples, and the concrete steps are as follows:
s1, crushing the slag and the coal gangue into particles with the diameter of 4mm to obtain solid waste particles, adding the solid waste particles into a stirrer, and adding the fly ash, the basalt fibers and the foamed polystyrene particles into the stirrer to mix for 4min to obtain a mixed material;
s2, injecting the mixed material into a ball mill, adding a proper amount of water into the ball mill, and grinding by the ball mill to obtain cement slurry;
s3, injecting the cement grout into a grout storage tank through a spiral conveying pipe for aging for 8 hours, adding water in the aging process, fully stirring for 3 minutes at a speed of 15r/min, then stirring for 4 minutes at a speed of 25r/min, and then stirring at a speed of 8r/min until the stirring is finished, so that the cement grout is uniformly mixed to obtain an aging liquid;
s4, putting the aging solution into a rotary cement kiln, calcining at 1300 ℃, and cooling after calcining to obtain cement clinker;
s5, adding the cement clinker into a mixer, adding the water glass, the anhydrous calcium sulfate, the calcium lignosulfonate, the isobutene triethoxysilane and the modified potassium polymetaphosphate into the mixer, and stirring at the speed of 120r/min for 18min to obtain the finished cement.
The cements in the above examples and comparative examples were used, and the experiments were carried out according to the cement setting time detection method specified in GB/T1346-2001, and the initial setting time and final setting time of the cement were recorded in the following table:
from the above data, it can be seen that the initial setting time in the examples is kept substantially after 15 minutes, and the final setting time is also more than 30 minutes, while the initial setting time in the comparative examples is kept about 10 minutes, but the final setting time is substantially about 20 minutes, compared with the wet degree of the cement in the comparative examples, the retention time is shorter, and therefore, the mass ratio of the modified potassium metaphosphate to the cement clinker is best between 2:1 and 5: 1.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A process method for producing cement by using solid wastes is characterized by comprising the following steps:
s1, crushing the slag and the coal gangue into particles with the diameter of 4mm to obtain solid waste particles, adding the solid waste particles into a stirrer, and adding the fly ash, the basalt fibers and the foamed polystyrene particles into the stirrer to mix for 4min to obtain a mixed material;
s2, injecting the mixed material into a ball mill, adding a proper amount of water into the ball mill, and grinding by the ball mill to obtain cement slurry;
s3, injecting the cement slurry into a slurry storage tank through a spiral conveying pipe, aging for 8-10 hours, adding water in the aging process, and fully stirring to uniformly mix the cement slurry to obtain an aging solution;
s4, putting the aging solution into a rotary cement kiln for calcination, and cooling after calcination to obtain cement clinker;
s5, adding the cement clinker into a mixer, adding water glass, anhydrous calcium sulfate, calcium lignosulfonate, isobutene triethoxysilane and modified potassium polymetaphosphate into the mixer, and stirring at the speed of 120r/min for 15-30 min to obtain the finished cement.
2. The process of claim 1, wherein the raw materials of S1-S5 in parts by mass are as follows: 75-125 parts of furnace slag, 75-95 parts of coal gangue, 65-85 parts of fly ash, 35-45 parts of basalt fiber, 17-23 parts of expanded polystyrene particles, 12-16 parts of water glass, 13-15 parts of anhydrous calcium sulfate, 8-12 parts of calcium lignosulfonate, 8-12 parts of isobutylene triethoxysilane and 6-9 parts of modified potassium metaphosphate.
3. A process for producing cement with solid wastes according to claim 1, wherein said ball mill is operated by: adding zirconia ball grinding beads according to the ball material mass ratio of 10:1, and carrying out ball-milling and mixing under the conditions of revolution rotating speed of 200-300 r/min and rotation rotating speed of 400-600 r/min.
4. The process of claim 1, wherein the step of stirring and mixing in S3 comprises: stirring at 15r/min for 3min, then at 25r/min for 4min, and then at 8r/min until the end.
5. The process for producing cement from solid waste according to claim 1, wherein the modified potassium polymetaphosphate is prepared from potassium polymetaphosphate and hydroxypropyl methylcellulose as raw materials, and aniline methyl trimethoxy silane as a coupling agent.
6. The process method for producing cement by using solid wastes according to claim 5, wherein the modified potassium polymetaphosphate is prepared by the following steps: mixing potassium polymetaphosphate and hydroxypropyl methylcellulose, adding into aniline methyltrimethoxysilane, mixing and stirring until completely fusing, and heating in water bath at 75 deg.C for 15min to obtain modified potassium polymetaphosphate.
7. The process for producing cement with solid waste as claimed in claim 1, wherein the calcination temperature of the rotary kiln for cement in S4 is 1300-1450 ℃.
8. The process method for producing cement by using solid wastes according to claim 1, wherein the mass ratio of the modified potassium polymetaphosphate to the cement clinker in S5 is (2-5): 1.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4544409A (en) * | 1979-06-05 | 1985-10-01 | Daussan Et Compagnie | Coating for protecting constructions, particularly against heat and fire |
| US20080006404A1 (en) * | 2006-07-05 | 2008-01-10 | Halliburton Energy Services, Inc. | Storable nonaqueous cement slurries and methods of using same |
| CN104944862A (en) * | 2015-06-10 | 2015-09-30 | 甘肃颐和新型材料有限责任公司 | Energy-saving wall material produced by using construction solid wastes and producing method of wall material |
| CN105924041A (en) * | 2016-04-25 | 2016-09-07 | 安徽惠明建材科技发展有限公司 | Basalt fiber air-entrained partition board |
| CN105985038A (en) * | 2015-02-26 | 2016-10-05 | 华智节能(香港)有限公司 | Inorganic cementing material and preparation method thereof |
| CN106278378A (en) * | 2016-08-22 | 2017-01-04 | 桂林新艺制冷设备有限责任公司 | A kind of architecture exterior wall insulating materials and preparation method thereof |
| CN106904918A (en) * | 2017-03-29 | 2017-06-30 | 哈尔滨学院 | Sculpture for city material and its method for making sculpture for city are made using construction waste |
| CN107162530A (en) * | 2017-06-20 | 2017-09-15 | 合肥市淑芹美装饰工程有限公司 | A kind of thermal insulation mortar of antimildew and antibacterial and preparation method thereof |
| CN109678369A (en) * | 2018-12-24 | 2019-04-26 | 铜陵上峰水泥股份有限公司 | A kind of polynary solid waste prepares the production technology and method of cement |
| CN110282890A (en) * | 2019-07-11 | 2019-09-27 | 武汉轻工大学 | A kind of anti-crack and anti-seepage cement and preparation method thereof containing industrial residue |
| CN111848013A (en) * | 2020-06-29 | 2020-10-30 | 尧柏特种水泥技术研发有限公司 | Special gas well cement slurry special for combustible ice exploitation |
| CN112142414A (en) * | 2020-10-19 | 2020-12-29 | 杭州米兔智能家居科技有限公司 | Preparation method of adhesive polystyrene particle thermal insulation mortar |
-
2021
- 2021-01-05 CN CN202110008064.6A patent/CN112456829A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4544409A (en) * | 1979-06-05 | 1985-10-01 | Daussan Et Compagnie | Coating for protecting constructions, particularly against heat and fire |
| US20080006404A1 (en) * | 2006-07-05 | 2008-01-10 | Halliburton Energy Services, Inc. | Storable nonaqueous cement slurries and methods of using same |
| CN105985038A (en) * | 2015-02-26 | 2016-10-05 | 华智节能(香港)有限公司 | Inorganic cementing material and preparation method thereof |
| CN104944862A (en) * | 2015-06-10 | 2015-09-30 | 甘肃颐和新型材料有限责任公司 | Energy-saving wall material produced by using construction solid wastes and producing method of wall material |
| CN105924041A (en) * | 2016-04-25 | 2016-09-07 | 安徽惠明建材科技发展有限公司 | Basalt fiber air-entrained partition board |
| CN106278378A (en) * | 2016-08-22 | 2017-01-04 | 桂林新艺制冷设备有限责任公司 | A kind of architecture exterior wall insulating materials and preparation method thereof |
| CN106904918A (en) * | 2017-03-29 | 2017-06-30 | 哈尔滨学院 | Sculpture for city material and its method for making sculpture for city are made using construction waste |
| CN107162530A (en) * | 2017-06-20 | 2017-09-15 | 合肥市淑芹美装饰工程有限公司 | A kind of thermal insulation mortar of antimildew and antibacterial and preparation method thereof |
| CN109678369A (en) * | 2018-12-24 | 2019-04-26 | 铜陵上峰水泥股份有限公司 | A kind of polynary solid waste prepares the production technology and method of cement |
| CN110282890A (en) * | 2019-07-11 | 2019-09-27 | 武汉轻工大学 | A kind of anti-crack and anti-seepage cement and preparation method thereof containing industrial residue |
| CN111848013A (en) * | 2020-06-29 | 2020-10-30 | 尧柏特种水泥技术研发有限公司 | Special gas well cement slurry special for combustible ice exploitation |
| CN112142414A (en) * | 2020-10-19 | 2020-12-29 | 杭州米兔智能家居科技有限公司 | Preparation method of adhesive polystyrene particle thermal insulation mortar |
Non-Patent Citations (9)
| Title |
|---|
| "小水泥"技术丛书编写组: "《无熟料水泥》", 30 September 1973, 中国建筑工业出版社 * |
| 中国石油天然气总公司勘探局: "《油气钻探新技术》", 30 June 1998, 石油工业出版社 * |
| 于守武: "《高分子材料改性 原理及技术》", 31 May 2015, 知识产权出版社 * |
| 张书华等: "《高性能电缆材料及其应用技术》", 30 November 2015, 上海交通大学出版社 * |
| 朱洪俊等: "有机磷酸盐混凝土保塑剂的合成及性能", 《中国建筑材料联合会混凝土外加剂分会、中国硅酸盐学会混凝土外加剂专业委员会2016年会》 * |
| 李珠等: "《土木工程施工 精编本 第2版》", 31 January 2013, 武汉理工大学出版社 * |
| 编辑委员会编: "《水泥学术会议论文选集1980、1981年》", 31 May 1983, 中国建筑工业出版社 * |
| 贡长生: "加强磷资源的开发与综合利用", 《湖北化工》 * |
| 郭群等: "《砂浆实验及检测培训教材》", 30 September 2014, 中国建材工业出版社 * |
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