CN1297858A - Clinker cement producing process adding steel slag firstly - Google Patents
Clinker cement producing process adding steel slag firstly Download PDFInfo
- Publication number
- CN1297858A CN1297858A CN99112574A CN99112574A CN1297858A CN 1297858 A CN1297858 A CN 1297858A CN 99112574 A CN99112574 A CN 99112574A CN 99112574 A CN99112574 A CN 99112574A CN 1297858 A CN1297858 A CN 1297858A
- Authority
- CN
- China
- Prior art keywords
- slag
- cement
- cement clinker
- steel slag
- clinker
- 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.)
- Granted
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
Landscapes
- 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
In the clinker cement producing process, the cement raw material includes limestone 68-71 wt%, clay 10-11.5 wt%, anthracite 9.5-11 wt%, steel slag 9-12 wt% and fluorite 0.5-0.8 wt%. Compared with available process of clinker cement producing process utilizing steel slag, the process of the present invention is simple, less in investment, easy in operation and low in cost, and can produce cement with stable performance reaching grade 525.
Description
The present invention relates to utilize slag production that the method for cement clinker is arranged, the preposition method production of particularly a kind of slag has the method for 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 activity excitant, less investment, cement performance are stable, the preposition method production of slag that cement mark can reach 525# has cement clinker.
The present invention is achieved in that the preposition method production of this slag has the method for 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 preposition method production of slag has the method for 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 preposition method production of slag according to claim 1 has the method for cement clinker, it is characterized in that: the joining day of slag is preposition to be the cement slurry mixed processes, and slag need be by selected, 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 true CN1297858A (en) | 2001-06-06 |
| CN1121356C 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601379A (en) * | 2013-11-15 | 2014-02-26 | 武汉理工大学 | Phase-separated clinker calcination process for outside-thrown high-calcium granulated slag |
| CN114105510A (en) * | 2021-12-31 | 2022-03-01 | 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
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601379A (en) * | 2013-11-15 | 2014-02-26 | 武汉理工大学 | Phase-separated clinker calcination process for outside-thrown high-calcium granulated slag |
| 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 |
| CN114105510A (en) * | 2021-12-31 | 2022-03-01 | 山东泰山钢铁集团有限公司 | Method for producing cement additive by utilizing metallurgical solid waste |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1121356C (en) | 2003-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11396478B2 (en) | Method and system for producing low-alkalinity sulphoaluminate cement with new mineral system using steel slag | |
| CN107324679B (en) | A kind of steel ground-slag early activity promotor and its preparation method and application | |
| CN101367629B (en) | Manufacture of sulphur aluminate cements with electrolytic manganesium residue and method of manufacturing the same | |
| CN101914673B (en) | Sodium-translated roasting method of vanadium minerals | |
| CN102093004A (en) | Composite tailing non-fired and non-steamed building block brick and preparation method thereof | |
| CN102071029B (en) | Green low-carbon curing agent for soil curing | |
| CN102101757A (en) | Industrial waste slag-doped composite silicate cement and production method thereof | |
| CN101555531B (en) | Method for activating and modifying steel slag by residual heat of converter steel slag | |
| CN103626440B (en) | A kind of mineral hot furnace slag dry-mixed mortar and preparation method thereof | |
| CN108118141A (en) | A kind of integrated treatment utilizes the chemical metallurgical method of red mud | |
| CN101525217A (en) | Environmental-friendly clinker-free cement and preparation method thereof | |
| CN109437612A (en) | It is a kind of using steel slag and slag as clinker-free cement of primary raw material and preparation method thereof | |
| CN106148699B (en) | The method for preparing iron-nickel alloy by-product activity mineral hot furnace granulated slag using red mud and lateritic nickel ore | |
| CN105129745B (en) | A kind of method that ardealite Sulphuric acid co-producing cement raw material integrate grinding | |
| CN107473613B (en) | A kind of cement and preparation method thereof using industrial solid-state castoff production | |
| CN1792945A (en) | Multifunctional cement grinding aid | |
| CN102849968A (en) | Method for preparing Portland cement clinker by using vanadium extraction tail-slag | |
| CN102838299A (en) | Method for producing cement by electrolytic manganese residue and red mud | |
| CN106587690A (en) | Preparation method of high-performance concrete mineral admixture | |
| CN1121356C (en) | Clinker cement producing process adding steel slag firstly | |
| CN100368333C (en) | Compound cement grinding aid and its production method | |
| CN103332875B (en) | A kind of industry by-product gypsum base composite gelled material and preparation method thereof | |
| CN102557504A (en) | Steel slag grinding aid and preparation method thereof | |
| CN102838303A (en) | Method for preparing cement by nickel-chromium residue | |
| CN110818300A (en) | Manganese slag super-sulfate cement and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |