CN110357461A - It is a kind of using vessel slag as the G of raw material grade oil-well cement clinker and preparation method thereof - Google Patents
It is a kind of using vessel slag as the G of raw material grade oil-well cement clinker and preparation method thereof Download PDFInfo
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- CN110357461A CN110357461A CN201910701109.0A CN201910701109A CN110357461A CN 110357461 A CN110357461 A CN 110357461A CN 201910701109 A CN201910701109 A CN 201910701109A CN 110357461 A CN110357461 A CN 110357461A
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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
- C04B7/36—Manufacture of hydraulic cements in general
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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
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/47—Cooling ; Waste heat management
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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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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a kind of using vessel slag as the G of raw material grade oil-well cement clinker and preparation method thereof, belongs to manufacture of cement and waste utilization field.The preparation method of the G grades of oil-well cement clinker, comprising the following steps: first lime stone, vessel slag, bauxite and silica mix, and carry out grinding, obtains raw material；Then, after raw material being homogenized processing, then pre- thermal decomposition process is carried out；Then, after the raw material after pre- thermal decomposition process being carried out high-temperature calcination processing, then by high temperature chamotte after rapid cooling, G grades of oil-well cement clinkers can be obtained.The present invention is by not only may be implemented the comprehensive utilization to trade waste, but also can reduce the carbon emission amount in clinker production process using vessel slag as the raw material of production clinker.In addition, the intensity and stability of G grades of oil-well cement clinker produced by the present invention are preferable, and quality is also more stable, is able to satisfy the requirement in oil well.
Description
Technical field
It is specifically a kind of using vessel slag as the G of raw material grade oil well water the present invention relates to manufacture of cement and waste utilization field
Mud clinker and preparation method thereof.
Background technique
Preparing clinker using dry-process cement rotary kiln is common clinker preparation method in cement industry, is mainly
Using lime stone, clay and ferriferous raw material as primary raw material, raw material are configured to by proper proportion, the production equipment of use mainly includes
Multistage preheater (generally 5 grades), dore furnace, smoke-box and rotary kiln.
Currently, G grades of oil-well cement clinkers are generally adopted by Portland clinker, since the clinker is substantially
Be prepared using good lime stone, clay and iron ore, so that with the increasingly deficient of resource, there are production cost compared with
The high, product life cycle is easy the problems such as being restricted.
In addition, vessel slag, is a kind of waste of industrial steel mill calcination.However, since the prior art is to vessel slag
Recovery utilization rate there is a problem of lower, and vessel slag is more serious to the pollution of environment, therefore, carries out recycling benefit to vessel slag
It is current urgent problem to be solved with processing.
Summary of the invention
The purpose of the present invention is to provide a kind of using vessel slag as the G of raw material grade oil-well cement clinker and preparation method thereof,
To solve the problems mentioned in the above background technology.
To achieve the above object, the embodiment of the present invention provides the following technical solutions:
It is a kind of using vessel slag as the preparation method of the G of raw material grade oil-well cement clinker, comprising the following steps:
S1, according to mass fraction meter, weigh following components: lime stone 65%-81%, vessel slag 14%-22%, bauxite 1%-4%, silicon
The mass fraction adduction of stone 4%-9%, each component are 100%, spare；
S2, above-mentioned weighed lime stone, vessel slag, bauxite and silica are mixed, and carries out grinding, obtain raw material；
S3, after raw material are homogenized processing, then pre- thermal decomposition process is carried out；
S4, the raw material after pre- thermal decomposition process are subjected to high-temperature calcination processing, obtain high temperature chamotte；
S5, by high temperature chamotte after rapid cooling, obtain G grades of oil-well cement clinkers.
A kind of preferred embodiment used in the embodiment of the present invention, Fe in the vessel slag2O3Mass fraction be 18%-22%.
Another kind preferred embodiment used in the embodiment of the present invention, in the step S1, according to mass fraction meter, weigh with
Lower component: lime stone 71%-76%, vessel slag 16%-18%, bauxite 2%-3%, silica 6%-8%, the mass fraction adduction of each component
It is 100%, it is spare.
Another kind preferred embodiment used in the embodiment of the present invention, in the step S1, according to mass fraction meter, weigh with
Lower component: lime stone 73.6%, vessel slag 17%, bauxite 2.4%, silica 7%, it is spare.
Another kind preferred embodiment used in the embodiment of the present invention, in the step S2, after raw material cross 80 μm of square hole screens
Screen over-size is 5%-18%.
Another kind preferred embodiment used in the embodiment of the present invention, in the step S3, the temperature of pre- thermal decomposition process is
850-880℃。
Another kind preferred embodiment used in the embodiment of the present invention, in the step S4, the temperature of high-temperature calcination processing is
1300-1350℃。
Another kind preferred embodiment used in the embodiment of the present invention, in the step S4, high-temperature calcination processing is to be with coal
Heat source.
Another kind preferred embodiment used in the embodiment of the present invention, in the step S5, by high temperature chamotte with 60-80 DEG C/
After the cooling velocity of min is cooled to 60-100 DEG C, G grades of oil-well cement clinkers are obtained.
The embodiment of the invention also provides a kind of using G grades of oil-well cement clinkers made from above-mentioned preparation method.
Compared with prior art, the beneficial effect of the embodiment of the present invention is:
(1) embodiment of the present invention is by not only may be implemented to work using vessel slag as a kind of raw material of production clinker
The comprehensive utilization of industry waste solves vessel slag stockpiling to appropriation of land, pollution and other way secondary treatment risk
Problem, but also the carbon emission amount in clinker production process can be reduced.
(2) intensity and stability of G made from the embodiment of the present invention grades of oil-well cement clinker are preferable, be better than it is commercially available often
The clinker seen, and quality is also more stable, is able to satisfy the requirement in oil well.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment 1
This embodiment offers a kind of using vessel slag as the G of raw material grade oil-well cement clinker and preparation method thereof, specifically, the G
Grade oil-well cement clinker preparation method the following steps are included:
S1, the lime stone for weighing 0.65t, the vessel slag of 0.22t, the bauxite of 0.04t and 0.09t silica, it is spare；Its
In, Fe in vessel slag2O3Mass fraction be 18%.
S2, above-mentioned weighed lime stone, vessel slag, bauxite and silica are mixed, and carries out grinding to 80 μm excessively
Screen over-size after square hole screen is 5%, obtains raw material.
S3, after raw material are homogenized processing, the five-stage whirlwind precalcining system of existing cement produced with the dry method kiln system is reused
Carry out pre- thermal decomposition process, wherein the temperature of pre- thermal decomposition process is controlled at 850 DEG C, specifically, the outlet temperature of dore furnace is
850℃；C5 outlet temperature is 860 DEG C；Material enters 860 DEG C of kiln temperature degree；Smoke-box temperature is 1050 DEG C, pressure is -200Pa；Three times
860 DEG C of wind-warm syndrome, pressure are -500Pa；1040 DEG C of secondary air temperature, kiln head cover pressure are -60Pa；The resolution ratio of raw material under the technique
It is 93%.
S4, the raw material after pre- thermal decomposition process are put into cement rotary kiln, and are carried out at high-temperature calcination by heat source of coal
20min is managed, high temperature chamotte is obtained；Wherein, kiln temperature is monitored by color comparator pyrometer, the temperature that high-temperature calcination is handled
At 1300 DEG C, the coal ash generated after coal combustion is calcined and is reacted together with raw material for degree control.
S5, by high temperature chamotte with the cooling velocity rapid cooling of 60 DEG C/min to after 60 DEG C, G grades of oil-well cements can be obtained
Clinker.Wherein, lithofacies structure analysis is carried out to obtained G grade oil-well cement clinker using metallographic microscope, by observing its mine
Object pattern, the lithofacies structure of the G grades of oil-well cement clinker is reasonable, physically well develops, edge clear.
Embodiment 2
This embodiment offers a kind of using vessel slag as the G of raw material grade oil-well cement clinker and preparation method thereof, specifically, the G
Grade oil-well cement clinker preparation method the following steps are included:
S1, the lime stone for weighing 0.81t, the vessel slag of 0.14t, the bauxite of 0.01t and 0.04t silica, it is spare；Its
In, Fe in vessel slag2O3Mass fraction be 22%.
S2, above-mentioned weighed lime stone, vessel slag, bauxite and silica are mixed, and carries out grinding to 80 μm excessively
Screen over-size after square hole screen is 18%, obtains raw material.
S3, after raw material are homogenized processing, the five-stage whirlwind precalcining system of existing cement produced with the dry method kiln system is reused
Carry out pre- thermal decomposition process, wherein the temperature of pre- thermal decomposition process is controlled at 880 DEG C, specifically, the outlet temperature of dore furnace is
880℃；C5 outlet temperature is 870 DEG C；Material enters 870 DEG C of kiln temperature degree；Smoke-box temperature is 1080 DEG C, pressure is -100Pa；Three times
890 DEG C of wind-warm syndrome, pressure are -300Pa；1100 DEG C of secondary air temperature, kiln head cover pressure are -40Pa；The resolution ratio of raw material under the technique
It is 97%.
S4, the raw material after pre- thermal decomposition process are put into cement rotary kiln, and are carried out at high-temperature calcination by heat source of coal
25min is managed, high temperature chamotte is obtained；Wherein, kiln temperature is monitored by color comparator pyrometer, the temperature that high-temperature calcination is handled
At 1350 DEG C, the coal ash generated after coal combustion is calcined and is reacted together with raw material for degree control.
S5, by high temperature chamotte with the cooling velocity rapid cooling of 80 DEG C/min to after 100 DEG C, G grades of oil well water can be obtained
Mud clinker.Wherein, lithofacies structure analysis is carried out to obtained G grade oil-well cement clinker using metallographic microscope, by observing it
Mineral morphology, the lithofacies structure of the G grades of oil-well cement clinker is reasonable, physically well develops, edge clear.
Embodiment 3
This embodiment offers a kind of using vessel slag as the G of raw material grade oil-well cement clinker and preparation method thereof, specifically, the G
Grade oil-well cement clinker preparation method the following steps are included:
S1, the lime stone for weighing 0.71t, the vessel slag of 0.18t, the bauxite of 0.03t and 0.08t silica, it is spare；Its
In, Fe in vessel slag2O3Mass fraction be 20%.
S2, above-mentioned weighed lime stone, vessel slag, bauxite and silica are mixed, and carries out grinding to 80 μm excessively
Screen over-size after square hole screen is 10%, obtains raw material.
S3, after raw material are homogenized processing, the five-stage whirlwind precalcining system of existing cement produced with the dry method kiln system is reused
Carry out pre- thermal decomposition process, wherein the temperature of pre- thermal decomposition process is controlled at 870 DEG C, specifically, the outlet temperature of dore furnace is
870℃；C5 outlet temperature is 870 DEG C；Material enters 870 DEG C of kiln temperature degree；Smoke-box temperature is 1060 DEG C, pressure is -150Pa；Three times
870 DEG C of wind-warm syndrome, pressure are -400Pa；1070 DEG C of secondary air temperature, kiln head cover pressure are -50Pa；The resolution ratio of raw material under the technique
It is 95%.
S4, the raw material after pre- thermal decomposition process are put into cement rotary kiln, and are carried out at high-temperature calcination by heat source of coal
22min is managed, high temperature chamotte is obtained；Wherein, kiln temperature is monitored by color comparator pyrometer, the temperature that high-temperature calcination is handled
At 1330 DEG C, the coal ash generated after coal combustion is calcined and is reacted together with raw material for degree control.
S5, by high temperature chamotte with the cooling velocity rapid cooling of 70 DEG C/min to after 80 DEG C, G grades of oil-well cements can be obtained
Clinker.Wherein, lithofacies structure analysis is carried out to obtained G grade oil-well cement clinker using metallographic microscope, by observing its mine
Object pattern, the lithofacies structure of the G grades of oil-well cement clinker is reasonable, physically well develops, edge clear.
Embodiment 4
This embodiment offers a kind of using vessel slag as the G of raw material grade oil-well cement clinker and preparation method thereof, specifically, the G
Grade oil-well cement clinker preparation method the following steps are included:
S1, the lime stone for weighing 0.76t, the vessel slag of 0.16t, the bauxite of 0.02t and 0.06t silica, it is spare；Its
In, Fe in vessel slag2O3Mass fraction be 19%.
S2, above-mentioned weighed lime stone, vessel slag, bauxite and silica are mixed, and carries out grinding to 80 μm excessively
Screen over-size after square hole screen is 10%, obtains raw material.
S3, after raw material are homogenized processing, the five-stage whirlwind precalcining system of existing cement produced with the dry method kiln system is reused
Carry out pre- thermal decomposition process, wherein the temperature of pre- thermal decomposition process is controlled at 870 DEG C, specifically, the outlet temperature of dore furnace is
870℃；C5 outlet temperature is 870 DEG C；Material enters 870 DEG C of kiln temperature degree；Smoke-box temperature is 1060 DEG C, pressure is -150Pa；Three times
870 DEG C of wind-warm syndrome, pressure are -400Pa；1070 DEG C of secondary air temperature, kiln head cover pressure are -50Pa；The resolution ratio of raw material under the technique
It is 95%.
S4, the raw material after pre- thermal decomposition process are put into cement rotary kiln, and are carried out at high-temperature calcination by heat source of coal
22min is managed, high temperature chamotte is obtained；Wherein, kiln temperature is monitored by color comparator pyrometer, the temperature that high-temperature calcination is handled
At 1330 DEG C, the coal ash generated after coal combustion is calcined and is reacted together with raw material for degree control.
S5, by high temperature chamotte with the cooling velocity rapid cooling of 70 DEG C/min to after 80 DEG C, G grades of oil-well cements can be obtained
Clinker.Wherein, lithofacies structure analysis is carried out to obtained G grade oil-well cement clinker using metallographic microscope, by observing its mine
Object pattern, the lithofacies structure of the G grades of oil-well cement clinker is reasonable, physically well develops, edge clear.
Embodiment 5
This embodiment offers a kind of using vessel slag as the G of raw material grade oil-well cement clinker and preparation method thereof, specifically, the G
Grade oil-well cement clinker preparation method the following steps are included:
S1, the lime stone for weighing 0.736t, the vessel slag of 0.17t, the bauxite of 0.24t and 0.07t silica, it is spare；Its
In, Fe in vessel slag2O3Mass fraction be 20.47%.
S2, above-mentioned weighed lime stone, vessel slag, bauxite and silica are mixed, and carries out grinding to 80 μm excessively
Screen over-size after square hole screen is 9%, obtains raw material.
S3, after raw material are homogenized processing, the five-stage whirlwind precalcining system of existing cement produced with the dry method kiln system is reused
Carry out pre- thermal decomposition process, wherein the temperature of pre- thermal decomposition process is controlled at 870 DEG C, specifically, the outlet temperature of dore furnace is
870℃；C5 outlet temperature is 870 DEG C；Material enters 870 DEG C of kiln temperature degree；Smoke-box temperature is 1060 DEG C, pressure is -150Pa；Three times
870 DEG C of wind-warm syndrome, pressure are -400Pa；1070 DEG C of secondary air temperature, kiln head cover pressure are -50Pa；The resolution ratio of raw material under the technique
It is 96%.
S4, the raw material after pre- thermal decomposition process are put into cement rotary kiln, and are carried out at high-temperature calcination by heat source of coal
25min is managed, high temperature chamotte is obtained；Wherein, kiln temperature is monitored by color comparator pyrometer, the temperature that high-temperature calcination is handled
At 1350 DEG C, the coal ash generated after coal combustion is calcined and is reacted together with raw material for degree control.
S5, by high temperature chamotte with the cooling velocity rapid cooling of 80 DEG C/min to after 60 DEG C, G grades of oil-well cements can be obtained
Clinker.Wherein, lithofacies structure analysis is carried out to obtained G grade oil-well cement clinker using metallographic microscope, by observing its mine
Object pattern, the lithofacies structure of the G grades of oil-well cement clinker is reasonable, physically well develops, edge clear.
In addition, respectively to above-described embodiment 5 use to lime stone, vessel slag, bauxite and silica component in
Each chemical component is analyzed, and analysis result is as shown in table 1 below.
Table 1
By 8 groups of G grades of oil-well cement clinker products made from the preparation method provided as above-described embodiment 5 according to relevant industries standard
Chemical composition analysis and physical property detection are carried out, shown in chemical composition analysis result the following table 2, physical property detection knot
Fruit is as shown in following table 3-4.
Table 2
Table 3
Table 4
It can see from upper table 3-4, the intensity and stability of G made from the embodiment of the present invention grades of oil-well cement clinker are preferable,
Better than commercially available common clinker, and quality is also more stable, is able to satisfy the requirement in oil well.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (10)
1. a kind of using vessel slag as the preparation method of the G of raw material grade oil-well cement clinker, which comprises the following steps:
S1, according to mass fraction meter, weigh following components: lime stone 65%-81%, vessel slag 14%-22%, bauxite 1%-4%, silicon
The mass fraction adduction of stone 4%-9%, each component are 100%, spare；
S2, above-mentioned weighed lime stone, vessel slag, bauxite and silica are mixed, and carries out grinding, obtain raw material；
S3, after raw material are homogenized processing, then pre- thermal decomposition process is carried out；
S4, the raw material after pre- thermal decomposition process are subjected to high-temperature calcination processing, obtain high temperature chamotte；
S5, by high temperature chamotte after rapid cooling, obtain G grades of oil-well cement clinkers.
2. according to claim 1 a kind of using vessel slag as the preparation method of the G of raw material grade oil-well cement clinker, feature
It is, Fe in the vessel slag2O3Mass fraction be 18%-22%.
3. according to claim 1 a kind of using vessel slag as the preparation method of the G of raw material grade oil-well cement clinker, feature
Be, in the step S1, according to mass fraction meter, weigh following components: lime stone 71%-76%, vessel slag 16%-18%,
The mass fraction adduction of bauxite 2%-3%, silica 6%-8%, each component are 100%, spare.
4. according to claim 3 a kind of using vessel slag as the preparation method of the G of raw material grade oil-well cement clinker, feature
It is, in the step S1, according to mass fraction meter, weighs following components: lime stone 73.6%, vessel slag 17%, bauxite
2.4%, silica 7%, it is spare.
5. according to claim 1 a kind of using vessel slag as the preparation method of the G of raw material grade oil-well cement clinker, feature
It is, in the step S2, it is 5%-18% that raw material, which cross the screen over-size after 80 μm of square hole screens,.
6. according to claim 1 a kind of using vessel slag as the preparation method of the G of raw material grade oil-well cement clinker, feature
It is, in the step S3, the temperature of pre- thermal decomposition process is 850-880 DEG C.
7. according to claim 1 a kind of using vessel slag as the preparation method of the G of raw material grade oil-well cement clinker, feature
It is, in the step S4, the temperature of high-temperature calcination processing is 1300-1350 DEG C.
8. according to claim 7 a kind of using vessel slag as the preparation method of the G of raw material grade oil-well cement clinker, feature
It is, in the step S4, high-temperature calcination processing is using coal as heat source.
9. according to claim 1 a kind of using vessel slag as the preparation method of the G of raw material grade oil-well cement clinker, feature
It is, in the step S5, after high temperature chamotte is cooled to 60-100 DEG C with the cooling velocity of 60-80 DEG C/min, obtains G grades
Oil-well cement clinker.
10. a kind of preparation method as claimed in any one of claims 1-9 wherein is obtained using vessel slag as the G of raw material grade oil well water
Mud clinker.
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| CN111320402A (en) * | 2020-03-30 | 2020-06-23 | 陕西富平生态水泥有限公司 | Cement production process capable of reducing chromium content in cement |
| CN111439938A (en) * | 2020-04-24 | 2020-07-24 | 吉林亚泰水泥有限公司 | Special cement for rail transit and production process thereof |
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| CN111253092A (en) * | 2020-01-23 | 2020-06-09 | 攀枝花钢城集团瑞丰水泥有限公司 | Technical method for stably reducing coal consumption of cement clinker sintering |
| CN111320402A (en) * | 2020-03-30 | 2020-06-23 | 陕西富平生态水泥有限公司 | Cement production process capable of reducing chromium content in cement |
| CN111439938A (en) * | 2020-04-24 | 2020-07-24 | 吉林亚泰水泥有限公司 | Special cement for rail transit and production process thereof |
| CN112939490A (en) * | 2021-02-26 | 2021-06-11 | 尧柏特种水泥技术研发有限公司 | Oil-gas well cement and preparation method thereof |
| CN113149475A (en) * | 2021-04-22 | 2021-07-23 | 尧柏特种水泥技术研发有限公司 | Preparation method of oil-gas well cement for shale gas well cementation engineering |
| CN115286267A (en) * | 2022-08-18 | 2022-11-04 | 河北鼎星水泥有限公司 | Low-alkali high-strength cement clinker and processing technology thereof |
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