CN1121356C - Clinker cement producing process adding steel slag firstly - Google Patents
Clinker cement producing process adding steel slag firstly Download PDFInfo
- Publication number
- CN1121356C CN1121356C CN99112574A CN99112574A CN1121356C CN 1121356 C CN1121356 C CN 1121356C CN 99112574 A CN99112574 A CN 99112574A CN 99112574 A CN99112574 A CN 99112574A CN 1121356 C CN1121356 C CN 1121356C
- Authority
- CN
- China
- Prior art keywords
- slag
- cement
- steel slag
- cement clinker
- fluorite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
- C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
- C04B7/17—Mixtures thereof with other inorganic cementitious materials or other activators with calcium oxide containing activators
-
- 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)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention discloses a method for producing clinker cement with a steel slag preposition method. Raw cement materials comprise the following components: limestone, clay soil, anthracite, steel slag and fluorite. The components respectively account for the percentage of a total weight as follows: 68 to 71% of limestone, 10 to 11.5% of clay soil, 9.5 to 11% of anthracite, 9 to 12% of steel slag and 0.5 to 0.8% of fluorite. Compared with the existing method that steel slag is used for producing the clinker cement, the method has the advantages of simple production process, little investment, convenient operation, stable cement performance and low production cost and has high social benefits and economic benefits, and a cement grade can reach 525#.
Description
The present invention relates to utilize slag production that the method for cement clinker is arranged, the method that the preposition method of particularly a kind of slag is produced cement clinker.
To be mineral substance such as clay, Wingdale, hard coal, sulfate slag, fluorite be calcined to after fragmentation mixes traditional cement production process again generates cement clinker about 1400 ℃, cement clinker generates the back common grinding of interpolation part blended material and forms cement, because the Chemical Composition of slag is similar to the cement clinker composition, slag is able to widespread use in manufacture of cement.At present, utilize slag production to have the method for cement clinker to have three kinds: a kind of method is slag directly to be mixed to produce as blended material and cement clinker cement clinker is arranged, adopt the cement clinker that has of this kind method production, its shortcoming is: the cement performance instability, cement early strength and later strength are not good enough, can only produce the following cement of 425# label.Another kind method is that slag directly with after cement clinker mixes is added the part activity excitant again as blended material, adopt the cement clinker that has of this kind method production, because the activity excitant that uses needs special reaction conditions and device, strengthened facility investment, and activity excitant cost height, improved production cost.To also have a kind of method be slag with after cement slurry mixes in rotary kiln again calcination become to have cement clinker, adopt the production of this kind method that cement clinker is arranged, slag and cement slurry need to enter the rotary kiln from two opening for feeds, need special device in the production process, complex process, operation easier is big, and the application investment is also bigger.
The object of the present invention is to provide a kind of production technique simply, need not add the method that the preposition method of activity excitant, less investment, cement performance slag stable, that cement mark can reach 525# is produced cement clinker.
The present invention is achieved in that the method that the preposition method of this slag is produced cement clinker, adopt Wingdale, clay, hard coal, slag, fluorite to proportion into raw material, the per-cent of the shared gross weight of its each component is respectively: Wingdale 68-71%, clay 10-11.5%, hard coal 9.5-11%, slag 9-12%, fluorite 0.5-0.8%; Fe in the slag
2O
3Content between 20-40%, slag granularity≤15mm, MgO content≤8.0% in the slag.Its production technique is mainly joining day of slag and prepositionly is the cement slurry mixed processes, at first slag is detected, concentrate stand-by to the slag that meets the employing standard, and then and Wingdale, clay, hard coal, fluorite require combined grinding in proportion, after calcination becomes cement clinker again, add blended material and carry out grinding and produced cement clinker.
The invention has the advantages that: utilize slag production to have the method for cement clinker to compare with existing, production technique is simple, less investment, easy to operate, cement performance stable, production cost is low, cement mark can reach 525#, has high social and economic benefit.
Embodiment 1:
The screening slag is to Fe in the slag
2O
3Content be 20%, slag granularity≤4mm, MgO content is that 4.26% slag is concentrated stand-by in the slag, take by weighing Wingdale 9120kg, clay 1500kg, hard coal 1480kg, slag 1210kg, fluorite 110kg, behind the combined grinding again calcination become cement clinker, add the common grinding of blended material for cement clinker is arranged.This cement clinker performance is after tested as following table one:
Table one
| Intensity (Mpa) | Mgo | SO 3 | Specific surface area (m 2/kg) | Time of coagulation | ||||
| 3 days | 28 days | Initial set | Final set | |||||
| Anti-folding | Resistance to compression | Anti-folding | Resistance to compression | 2.42 | 1.02 | 400 | 1：03 | 2：32 |
| 5.2 | 38.2 | 9.1 | 61.4 | |||||
Embodiment 2:
The screening slag is to Fe in the slag
2O
3Content be 30%, slag granularity≤6mm, MgO content is that 5.6% slag is concentrated stand-by in the slag, take by weighing Wingdale 9210kg, clay 1410kg, hard coal 1340kg, slag 1410kg, fluorite 70kg, behind the combined grinding again calcination become cement clinker, add the common grinding of blended material for cement clinker is arranged.This cement clinker performance is after tested as following table two:
Table two
| Intensity (Mpa) | Mgo | SO 3 | Specific surface area (m 2/kg) | Time of coagulation | ||||
| 3 days | 28 days | Initial set | Final set | |||||
| Anti-folding | Resistance to compression | Anti-folding | Resistance to compression | 2.35 | 1.40 | 410 | 0：54 | 1：05 |
| 5.5 | 39 | 8.9 | 60.1 | |||||
Embodiment 3:
The screening slag is to Fe in the slag
2O
3Content be 40%, slag granularity≤8mm, MgO content is that 8.0% slag is concentrated stand-by in the slag, take by weighing Wingdale 9120kg, clay 1340kg, hard coal 1200kg, slag 1610kg, fluorite 68kg, behind the combined grinding again calcination become cement clinker, add the common grinding of blended material for cement clinker is arranged.This cement clinker performance is after tested as following table three:
Table three
| Intensity (Mpa) | Mgo | SO 3 | Specific surface area (m 2/kg) | Time of coagulation | ||||
| 3 days | 28 days | Initial set | Final set | |||||
| Anti-folding | Resistance to compression | Anti-folding | Resistance to compression | 2.1 | 1.2 | 400 | 1：20 | 2：50 |
| 5.3 | 37 | 9.0 | 60.8 | |||||
Claims (2)
1, the method for the preposition method production of a kind of slag cement clinker, it is characterized in that: each component of cement slurry is: Wingdale, clay, hard coal, slag, fluorite, the per-cent of the shared gross weight of each component is respectively: Wingdale 68-71%, clay 10-11.5%, hard coal 9.5-11%, slag 9-12%, fluorite 0.5-0.8%.
2, the method for the preposition method production of slag according to claim 1 cement clinker is characterized in that: the joining day of slag is preposition to be the cement slurry mixed processes, Fe in its slag
2O
3Content be 20%-40%, slag granularity≤15mm, MgO content≤8.0% in the slag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99112574A CN1121356C (en) | 1999-11-25 | 1999-11-25 | Clinker cement producing process adding steel slag firstly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99112574A CN1121356C (en) | 1999-11-25 | 1999-11-25 | Clinker cement producing process adding steel slag firstly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1297858A CN1297858A (en) | 2001-06-06 |
| CN1121356C true CN1121356C (en) | 2003-09-17 |
Family
ID=5275866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99112574A Expired - Fee Related CN1121356C (en) | 1999-11-25 | 1999-11-25 | Clinker cement producing process adding steel slag firstly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1121356C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601379B (en) * | 2013-11-15 | 2015-09-30 | 武汉理工大学 | A kind of outer high calcium slag sand of throwing calcines phase-splitting grog technique |
| CN114105510B (en) * | 2021-12-31 | 2022-11-11 | 山东泰山钢铁集团有限公司 | Method for producing cement additive by utilizing metallurgical solid waste |
-
1999
- 1999-11-25 CN CN99112574A patent/CN1121356C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1297858A (en) | 2001-06-06 |
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