CN107473613A - It is a kind of to utilize cement of industrial solid-state castoff production and preparation method thereof - Google Patents
It is a kind of to utilize cement of industrial solid-state castoff production and preparation method thereof Download PDFInfo
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- CN107473613A CN107473613A CN201710848533.9A CN201710848533A CN107473613A CN 107473613 A CN107473613 A CN 107473613A CN 201710848533 A CN201710848533 A CN 201710848533A CN 107473613 A CN107473613 A CN 107473613A
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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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
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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
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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 & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention provides a kind of cement produced using industrial solid-state castoff.The cement is made up of following raw material：Clinker 77.00~82.50%, bottom slag 0.30~7.90%, desulfurated plaster 1.60~5.55%, waste mining rock 2.90~7.60%, high silica sand rock 0~1.00%, flyash 0.70~6.70%, high magnesium barren rock 0~12.00%, ardealite 0~2.40%, titanium gypsum 0~0.80%；Wherein described clinker is made up of following raw material：Common lime stone, marble sawdust, marble leftover pieces, high magnesium barren rock, sandstone, laterite and wet-discharged coal ash.The cement prepares cement slurry with marble sawdust, leftover pieces, and waste residue utilization rate is big, can save substantial amounts of natural resources and the energy；Meanwhile high magnesium barren rock had both been used for preparing raw material, also functions as the mixing material of cement while uses, substantially increases the utilization rate of high magnesium barren rock.
Description
Technical field
The present invention relates to a kind of building material field, and in particular to it is a kind of using industrial solid-state castoff production cement and
Its preparation method.
Background technology
Cement, it is widely used in industry and civil buildings.Traditional clinker is using lime stone, clay, silica sand, iron ore
The natural mineral resources such as stone, gypsum, fluorite, coal and the energy are that raw material carries out dispensing calcining, waste substantial amounts of natural resources and
The energy.At present, the cement produced using industrial residue, the production cost of cement can be reduced.Flyash equal industrial residue conduct
Mixing material is widely used in cement field, but in the last few years, supply falls short of demand for flyash equal industrial residue, it is impossible to meets
Demand.
With China's economy and the rapid development of construction, infrastructure investment constantly increases, processing of stone, cement concrete
Industry etc. also continues to develop.But while development, processing of stone is along with the continuous generation of sawdust and leftover pieces, land occupation
Resource, flow into river and cause water pollution, airborne dust causes air pollution.In addition, the main raw material(s) as production cement, lime
Stone is mainly obtained by mining, and with exploitation dynamics increasing, limestone mine solid waste dolomitic lime stone also by
Year increase, the long-term heap of these solid wastes is stored in earth's surface, not only occupies large amount of land resources, also have to environment it is potentially hazardous,
Such as cause the pollution of soil and water environment, destroy vegetation.
City of south china relies on abundant mineral resources to give priority to stone material, non-ferrous metals processing industry.Especially marble
Processing of stone produces substantial amounts of sawdust and leftover pieces, but fails timely, effective processing, causes disorderly to bury to huddle to have had a strong impact on he
The ecological protection of state city, Some Enterprises have been forced to be suspended operations for consolidation.Meanwhile cementmine excavates production cement, substantial amounts of high magnesium
Barren rock land occupation resource, not only waste of resource, and certain pressure is caused to environment.Application No. 201210470288.X hair
The bright one kind that discloses prepares Portland clinker and preparation method thereof using marble stone flour, utilizes marble wastes and high silicon
Iron tailings prepares cement as admixture, has saved the energy, but waste residue utilization is more single, and the strength of cement prepared is relatively low,
Have to be hoisted.The patent of invention of Application No. 201510274585.0 discloses a kind of high magnesium waste stone dust based composite mineral blending material
And the application in strong concrete, by high magnesium barren rock grinding, obtain high magnesium waste stone dust based composite mineral and mixed as concrete
Close material, there is provided a kind of utilization ways of high magnesium barren rock, but doping is relatively low, utilization rate is not high.
The content of the invention
One of goal of the invention of the present invention is, in view of the above-mentioned problems, providing a kind of using the production of industrial solid-state castoff
Cement, cement slurry is prepared using marble sawdust, leftover pieces, waste residue utilization rate is big, can save substantial amounts of natural resources and
The energy；Meanwhile high magnesium barren rock had both been used for preparing raw material, also functions as the mixing material of cement while uses, substantially increases high magnesium and give up
The utilization rate of stone.
To reach above-mentioned purpose, the technical solution adopted in the present invention is：
A kind of cement produced using industrial solid-state castoff, is made up of the raw material of following percentage by weight：
Clinker 77.00~82.50%, bottom slag 0.30~7.90%, desulfurated plaster 1.60~5.55%, waste mining rock
2.90~7.60%, high silica sand rock 0~1.00%, flyash 0.70~6.70%, high magnesium barren rock 0~12.00%, ardealite 0
~2.40%, titanium gypsum 0~0.80%；
Wherein described clinker is made up of the raw material of following percentage by weight：
Common lime stone 71.24~82.60%, marble sawdust 0~11.00%, marble leftover pieces 0~11.00%,
High magnesium barren rock 1.00~5.50%, sandstone 9.20~11.60%, laterite 1.70~6.20%, wet-discharged coal ash 0~3.00%.
As a kind of preferable scheme, the cement produced using industrial solid-state castoff, by following percentage by weight
Raw material be made：
Clinker 79.00~81.50%, bottom slag 2.00~5.00%, desulfurated plaster 2.00~3.50%, waste mining rock
4.00~6.00%, high silica sand rock 0.20~0.80%, flyash 2.00~4.70%, high magnesium barren rock 3.00~8.00%, phosphorus
Gypsum 0.50~1.50%, titanium gypsum 0.20~0.60%；
Wherein described clinker is made up of the raw material of following percentage by weight：
Common lime stone 72.24~76.60%, marble sawdust 3.00~6.00%, marble leftover pieces 4.5~
8.00%, high magnesium barren rock 1.50~3.00%, sandstone 9.80~10.60%, laterite 1.70~4.20%, wet-discharged coal ash 0~
1.50%.
As a kind of preferable scheme, the cement produced using industrial solid-state castoff, by following percentage by weight
Raw material be made：
Clinker 80.50%, bottom slag 3.40%, desulfurated plaster 2.10%, waste mining rock 4.70%, high silica sand rock
1.00%, flyash 0.90%, high magnesium barren rock 5.00%, ardealite 2.10%, titanium gypsum 0.30%；
Wherein described clinker is made up of the raw material of following percentage by weight：
Common lime stone 73.90%, marble sawdust 4.70%, marble leftover pieces 6.40%, high magnesium barren rock 2.00%,
Sandstone 10.60%, laterite 1.90%, wet-discharged coal ash 0.50%.
As a kind of preferable scheme, the marble sawdust and marble leftover pieces are natural marble or artificial Dali
Sawdust or leftover pieces caused by stone processing, and moisture is not higher than 25%.
As a kind of preferable scheme, the lime stone of high magnesium barren rock content of MgO >=3.5%, waste mining rock is except height
Low-grade limestone outside magnesium barren rock, CaO content is below 48%.
The two of the goal of the invention of the present invention are to provide a kind of preparation method that cement is produced using industrial solid-state castoff,
Solid-state castoff is fully handled, the cement quality produced is higher than national standard, has saved cost to a certain extent.
To reach above-mentioned purpose, the technical solution adopted in the present invention is：
A kind of preparation method that cement is produced using industrial solid-state castoff, is comprised the following steps：
(1) first by the moisture press filtration of natural marble or synthetic marble sawdust to≤25%, then by marble sawdust,
Marble leftover pieces, high magnesium barren rock, common lime stone, sandstone and laterite is mixed according to the mass percent, grinding is configured to
Raw meal powder.
(4) raw meal powder made from step (1) is homogenized, calcines and cool down subsequently into cement rotary kiln, it is ripe to obtain cement
Material.
(5) clinker obtained by step (2) is added into bottom slag, desulfurated plaster, waste mining rock, high silica sand rock, powder
Coal ash, titanium gypsum, ardealite and high magnesium barren rock, then it is well mixed milling and finished cement is made.
As a kind of preferable scheme, in step (1), it is 15 that the fineness requirement of raw meal powder tails over for 80 tm screens~
20%.
As a kind of preferable scheme, in step (2), raw material calcining heat is 1300~1450 DEG C.
As a kind of preferable scheme, in step (2), milling control specific surface area >=350m2/Kg, finished cement is made.
Due to using above-mentioned technical proposal, the invention has the advantages that：
1. the cement that the invention is related to, by the use of marble sawdust, marble leftover pieces as cement slurry, significantly improve
The utilization rate of stone mining and processing waste material, save substantial amounts of land resource.Meanwhile with waste mining rock and desulfurated plaster, phosphorus stone
A variety of Industrial Solid Wastes such as cream, titanium gypsum and high magnesium barren rock are used in combination, and realize the diversified cooperative disposal method of solid waste, improve
The utilization rate of Industrial Solid Waste.Both production cost has been saved, has alleviated environmental pressure again.Meanwhile because by the use of titanium gypsum as
Cement additive influences the use of cement, so as to increase the processing of titanium gypsum in use, cement setting time can be obviously prolonged
Difficulty, using the synergy of a variety of solid wastes, titanium gypsum is used in combination with high magnesium barren rock, high silica sand rock and waste mining rock, and
Strict control dosage, solve titanium gypsum utilizes difficulties.
2. the cement that the invention is related to, high magnesium barren rock had both been used for preparing raw material, also functions as the mixing material of cement while uses,
The requirement that traditional high magnesium barren rock is less than 3.5% to content of magnesium is broken, has improved it and comprehensively utilize scope.Wherein, it is used for
The amount for preparing the high magnesium barren rock of raw material determines according to content of magnesium, prevents magnesium from becoming activated magnesia after calcining, to cement stability
Impact, therefore to control content of magnesium.When preparing cement, it can not be limited for serving as mixing material with high magnesium barren rock by content of magnesium
System, because high magnesium barren rock, when mixing material, magnesia itself is without high-temperature calcination, and active content of magnesium is low, and magnesia is with powder
The form at end is present, and the alkali-aggregate reaction effect of dispersible active magnesia, avoids the stress concentration in cement hydration process.
3. the method for the present invention for preparing cement, first by the moisture press filtration of natural marble or synthetic marble sawdust
To≤25%, avoid influenceing the performance of cement kiln and grinding machine, ensure that feeding and conveying are smoothed out.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
A kind of cement produced using industrial solid-state castoff, is made up of the raw material of following percentage by weight：
Clinker 80.50%, bottom slag 3.40%, desulfurated plaster 2.10%, waste mining rock 4.70%, high silica sand rock
1.00%, flyash 0.90%, high magnesium barren rock 5.00%, ardealite 2.10%, titanium gypsum 0.30%；
Wherein described clinker is made up of the raw material of following percentage by weight：
Common lime stone 73.90%, marble sawdust 4.70%, marble leftover pieces 6.40%, high magnesium barren rock 2.00%,
Sandstone 10.60%, laterite 1.90%, wet-discharged coal ash 0.50%.
A kind of preparation method that cement is produced using industrial solid-state castoff, is comprised the following steps：
(1) first by the moisture press filtration of natural marble or synthetic marble sawdust to≤25%, then by marble sawdust,
Marble leftover pieces, high magnesium barren rock, common lime stone, sandstone and laterite is mixed according to the mass percent, grinding is configured to
Raw meal powder；It is 15% that raw meal powder fineness requirement tails over for 80 tm screens.
(2) raw meal powder made from step (1) is homogenized, calcines and cool down subsequently into cement rotary kiln, calcining heat
1350 DEG C obtain clinker；
(3) clinker obtained by step (2) is added into bottom slag, desulfurated plaster, waste mining rock, high silica sand rock, powder
Coal ash, titanium gypsum, ardealite and high magnesium barren rock, then it is well mixed milling, milling control specific surface area >=350m2/Kg, it is made
Finished cement.
The present embodiment, in clinker, marble wastes accounting 11.10%, high magnesium barren rock accounting 2.00%, when preparing cement,
Other solid-state castoff accountings 19.50%, wherein, high magnesium barren rock accounting 5.00%, titanium gypsum 0.30%.
Embodiment 2
A kind of cement produced using industrial solid-state castoff, is made up of the raw material of following percentage by weight：
Clinker 82.50%, bottom slag 0.30%, desulfurated plaster 2.60%, waste mining rock 5.00%, flyash 6.70%,
High magnesium barren rock 2.20%, titanium gypsum 0.70%；
Wherein described clinker is made up of the raw material of following percentage by weight：
Common lime stone 75.00%, marble sawdust 2.50%, marble leftover pieces 3.50%, high magnesium barren rock 2.00%,
Sandstone 10.00%, laterite 4.00%, wet-discharged coal ash 3.00%.
The present embodiment, in clinker, marble wastes accounting 6.00%, high magnesium barren rock accounting 2%, when preparing cement, other
Solid-state castoff accounting 17.50%, wherein, high magnesium barren rock accounting 2.20%, titanium gypsum 0.70%.
Preparation method is the same as embodiment 1.
Embodiment 3
A kind of cement produced using industrial solid-state castoff, is made up of the raw material of following percentage by weight：
Clinker 77.00%, bottom slag 2.50%, desulfurated plaster 5.55%, waste mining rock 7.60%, flyash 5.90%,
High magnesium barren rock 0.40%, ardealite 0.55%, titanium gypsum 0.70%；
Wherein described clinker is made up of the raw material of following percentage by weight：
Common lime stone 80.24%, marble sawdust 2.00%, high magnesium barren rock 4.10%, sandstone 11.60%, laterite
1.70%, wet-discharged coal ash 0.36%.
The present embodiment, in clinker, marble wastes accounting 2.00%, high magnesium barren rock accounting 4.10%, when preparing cement, its
His solid-state castoff accounting 23.00%, wherein, high magnesium barren rock accounting 0.40%, titanium gypsum 0.70%.
Preparation method is the same as embodiment 1.
Embodiment 4
A kind of cement produced using industrial solid-state castoff, is made up of the raw material of following percentage by weight：
Clinker 82.30%, bottom slag 3.90%, desulfurated plaster 1.60%, waste mining rock 5.00%, high silica sand rock
0.30%, flyash 3.20%, high magnesium barren rock 2.00%, ardealite 1.70%；
Wherein described clinker is made up of the raw material of following percentage by weight：
Common lime stone 63.50%, marble sawdust 10.00%, marble leftover pieces 10.00%, high magnesium barren rock
2.00%, sandstone 11.00%, laterite 3.50%.
The present embodiment, in clinker, marble wastes accounting 20.00%, high magnesium barren rock accounting 2.00%, when preparing cement,
Other solid-state castoff accountings 18.70%, wherein, high magnesium barren rock accounting 2.00%, not containing titanium gypsum.
Preparation method is the same as embodiment 1.
Embodiment 5
A kind of cement produced using industrial solid-state castoff, is made up of the raw material of following percentage by weight：
Clinker 77.80%, bottom slag, 5.90%, high magnesium barren rock 2.00%, desulfurated plaster 4.20%, waste mining rock
6.50%, flyash 2.10%, titanium gypsum 1.50%；
Wherein described clinker is made up of the raw material of following percentage by weight：
Common lime stone 82.50%, high magnesium barren rock 0.40%, sandstone 9.20%, laterite 6.20%, wet-discharged coal ash
1.60%.
The present embodiment, in clinker, not containing marble wastes, high magnesium barren rock accounting 0.40%, when preparing cement, other solid-states
Discarded object accounting 21.20%, wherein, high magnesium barren rock 2.00%, containing titanium gypsum 1.50%.
Preparation method is the same as embodiment 1.
Embodiment 6
A kind of cement produced using industrial solid-state castoff, is made up of the raw material of following percentage by weight：
Clinker 76.20%, bottom slag 4.10%, desulfurated plaster 3.70%, waste mining rock 2.90%, high silica sand rock
1.10%, flyash 0.70%, high magnesium barren rock 10.50%, titanium gypsum 0.80%；
Wherein described clinker is made up of the raw material of following percentage by weight：
Common lime stone 82.00%, marble sawdust 0.30%, high magnesium barren rock 3.80%, sandstone 9.60%, laterite
4.00%, wet-discharged coal ash 0.30%.
The present embodiment, in clinker, marble wastes accounting 0.30%, high magnesium barren rock accounting 3.80%, when preparing cement, its
His solid-state castoff accounting 17.80%, wherein, high magnesium barren rock accounting 10.50%, titanium gypsum 0.80%.
Preparation method is the same as embodiment 1.
The embodiment 1-6 cement performances prepared are tested, test result such as table 1：
The cement performance result of table 1
From table 1,1-6 can be seen that the cement performance prepared of the present invention and fully meet national standard in conjunction with the embodiments, will be big
Reason stone sawdust, marble leftover pieces are applied to cement with reference to high magnesium barren rock, and 28d compression strength obtains higher than standard requirement, intensity
Improve.Meanwhile Industrial Solid Wastes a variety of with desulfurated plaster, ardealite, titanium gypsum etc. are applied to cement by processing, improve solid waste
Utilization rate, it is both cost-effective, environmental pressure is alleviated again.
Meanwhile embodiment 1-4 can be seen that and marble sawdust, the content of marble leftover pieces are adjusted in appropriate scope,
Have no effect on the quality of the finished product of cement.But excessively addition can then reduce strength of cement.
Implement 5 explanations, the content of titanium gypsum directly affects cement setting time, therefore should strictly control content.
Embodiment 6 can be seen that high magnesium barren rock when mixing material, and appropriateness, which improves content, can't influence strength of cement, be
Because magnesia itself is without high-temperature calcination, active content of magnesium is low, and magnesia exists in the form of a powder, dispersible active
The alkali-aggregate reaction effect of magnesia, avoids the stress concentration in cement hydration process.But the high magnesium for preparing raw material gives up
The amount of stone can not be too high according to content of magnesium, prevents magnesium from becoming activated magnesia after calcining, cement stabilizing is impacted.
The equal change or modification change completed under technical spirit suggested by all present invention of described above, all should belong to
It is the detailed description for being directed to the present invention preferably possible embodiments that the present invention, which is contained, but embodiment is not limited to the special of the present invention
Sharp application range, lid the scope of the claims.
Claims (9)
1. a kind of cement produced using industrial solid-state castoff, it is characterised in that be made up of the raw material of following percentage by weight：
Clinker 77.00~82.50%, bottom slag 0.30~7.90%, desulfurated plaster 1.60~5.55%, waste mining rock 2.90~
7.60%, high silica sand rock 0~1.00%, flyash 0.70~6.70%, high magnesium barren rock 0~12.00%, ardealite 0~
2.40%, titanium gypsum 0~0.80%；
Wherein described clinker is made up of the raw material of following percentage by weight：
Common lime stone 71.24~82.60%, marble sawdust 0~11.00%, marble leftover pieces 0~11.00%, Gao Mei
Barren rock 1.00~5.50%, sandstone 9.20~11.60%, laterite 1.70~6.20%, wet-discharged coal ash 0~3.00%.
2. the cement according to claim 1 produced using industrial solid-state castoff, it is characterised in that by following weight hundred
The raw material of ratio is divided to be made：
Clinker 79.00~81.50%, bottom slag 2.00~5.00%, desulfurated plaster 2.00~3.50%, waste mining rock 4.00~
6.00%, high silica sand rock 0.20~0.80%, flyash 2.00~4.70%, high magnesium barren rock 3.00~8.00%, ardealite
0.50~1.50%, titanium gypsum 0.20~0.60%；
Wherein described clinker is made up of the raw material of following percentage by weight：
Common lime stone 72.24~76.60%, marble sawdust 3.00~6.00%, marble leftover pieces 4.5~8.00%,
High magnesium barren rock 1.50~3.00%, sandstone 9.80~10.60%, laterite 1.70~4.20%, wet-discharged coal ash 0~1.50%.
3. the cement according to claim 1 produced using industrial solid-state castoff, it is characterised in that by following weight hundred
The raw material of ratio is divided to be made：
Clinker 80.50%, bottom slag 3.40%, desulfurated plaster 2.10%, waste mining rock 4.70%, high silica sand rock 1.00%, powder
Coal ash 0.90%, high magnesium barren rock 5.00%, ardealite 2.10%, titanium gypsum 0.30%；
Wherein described clinker is made up of the raw material of following percentage by weight：
Common lime stone 73.90%, marble sawdust 4.70%, marble leftover pieces 6.40%, high magnesium barren rock 2.00%, sandstone
10.60%, laterite 1.90%, wet-discharged coal ash 0.50%.
4. according to any described cement produced using industrial solid-state castoff of claim 1-3, it is characterised in that described big
Reason stone sawdust and marble leftover pieces are sawdust or leftover pieces caused by natural marble or synthetic marble processing, and moisture contains
Amount is not higher than 25%.
5. cement is produced according to any industrial solid-state castoffs of described utilization of claim 1-3, it is characterised in that the high magnesium
Barren rock magnesium barren rock is the lime stone of content of MgO >=3.5%；Waste mining rock is the lime stone in addition to high magnesium barren rock, and CaO content exists
Less than 48%.
6. according to any described preparation methods that cement is produced using industrial solid-state castoff of claim 1-3, its feature exists
In comprising the following steps：
(1) first by the moisture press filtration of natural marble or synthetic marble sawdust to≤25%, then by marble sawdust, Dali
Stone leftover pieces, high magnesium barren rock, common lime stone, sandstone and laterite mixes according to the mass percent, grinding is configured to raw material
Powder；
(2) raw meal powder made from step (1) is homogenized, calcines and cool down subsequently into cement rotary kiln, obtain clinker；
(3) by obtained by step (2) clinker add bottom slag, desulfurated plaster, waste mining rock, high silica sand rock, flyash,
Titanium gypsum, ardealite and high magnesium barren rock, then it is well mixed milling and finished cement is made.
7. the preparation method according to claim 6 that cement is produced using industrial solid-state castoff, it is characterised in that step
(1) in, it is 15~20% that the fineness requirement of raw meal powder tails over for 80 tm screens.
8. the preparation method according to claim 6 that cement is produced using industrial solid-state castoff, it is characterised in that step
(2) in, raw material calcining heat is 1300~1450 DEG C.
9. the preparation method according to claim 6 that cement is produced using industrial solid-state castoff, it is characterised in that step
(2) in, milling control specific surface area >=350m2/Kg, finished cement is made.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824303A (en) * | 2019-01-02 | 2019-05-31 | 华润水泥（富川）有限公司 | Wet-mix concrete and its preparation method |
| CN111592245A (en) * | 2020-05-19 | 2020-08-28 | 胡丹萍 | Environment-friendly cement using waste as raw material and preparation method thereof |
| CN113800793A (en) * | 2021-09-26 | 2021-12-17 | 枣庄中联水泥有限公司 | Cement prepared from titanium white gypsum |
| CN114105501A (en) * | 2021-09-26 | 2022-03-01 | 枣庄中联水泥有限公司 | Cement prepared from marble waste residues |
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| CN104193199A (en) * | 2014-09-11 | 2014-12-10 | 山西中条山新型建材有限公司 | High magnesium slag doped cement |
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| CN104193199A (en) * | 2014-09-11 | 2014-12-10 | 山西中条山新型建材有限公司 | High magnesium slag doped cement |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824303A (en) * | 2019-01-02 | 2019-05-31 | 华润水泥（富川）有限公司 | Wet-mix concrete and its preparation method |
| CN111592245A (en) * | 2020-05-19 | 2020-08-28 | 胡丹萍 | Environment-friendly cement using waste as raw material and preparation method thereof |
| CN113800793A (en) * | 2021-09-26 | 2021-12-17 | 枣庄中联水泥有限公司 | Cement prepared from titanium white gypsum |
| CN114105501A (en) * | 2021-09-26 | 2022-03-01 | 枣庄中联水泥有限公司 | Cement prepared from marble waste residues |
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| CN107473613B (en) | 2018-08-31 |
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