CN1161300C - Portland cement clinker - Google Patents
Portland cement clinker Download PDFInfo
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- CN1161300C CN1161300C CNB011302364A CN01130236A CN1161300C CN 1161300 C CN1161300 C CN 1161300C CN B011302364 A CNB011302364 A CN B011302364A CN 01130236 A CN01130236 A CN 01130236A CN 1161300 C CN1161300 C CN 1161300C
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- iron ore
- flyash
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- wingdale
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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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Abstract
The present invention relates to Portland cement clinker whose raw materials are prepared by proportioning the following materials according to the proportion by weight: 73% to 86% of limestone, 5% to 18% of plumbum and zinc tailing, 2% to 12% of shale rock and 1% to 8% of iron stone. The raw materials are calcined into cement clinker according to conventional cement technology. The present invention aims to provide Portland cement clinker having less pollution, low energy consumption and industrial waste use.
Description
Technical field
The present invention relates to a kind of suitable positions grog.
Background technology
The raw material preparation of production traditional portland grog grog, the following raw material of the general employing of its prescription:
1, Wingdale 77～82% 2, clay 14～18% 3, iron ore (or correction material) 4～6%
From the prescription of traditional raw material, outside the delime stone, also need 18～24% clay and iron ore, and clay and iron ore are mainly derived from arable land and iron ore deposit.Clay particularly, 1 ton of grog of every production need consume 230～300 kilograms of clays, produce cement clinker China's year about 4～4.5 hundred million tons, suppose that 50% siliceous correction material derives from clay, so annual usage quantity of ploughing is 5～7,000 ten thousand cubic metres, the degree of depth is by 2 meters calculating when excavating, and annual destruction ploughed 3.75～5.25 ten thousand mu.China is a traditional large agricultural country, have 1,300,000,000 populations, account for about 22% of world population, but cultivated area only accounts for 7% of world's cultivated area, having a large population in a small area, is the fundamental realities of the country of China, therefore, use other raw material (especially industrial residue, waste material) to come the instead of clay resource, economize the land resource, change the important channel of agroecological environment beyond doubt.
In addition, in traditional portland grog prescription, contain multiple oxious component (for the grog sintering process) in the raw material, as sulphur, chlorine, fluorine, in calcination process, the gas cyaniding thing that sulphur, chlorine, fluorine form is discharged in the atmosphere, becomes one of important source of pollution that cause topsoil.
Clay in the traditional raw material, iron ore in the raw meal preparation process, because the viscosity of clay is bigger, are very easily stuck with paste ball; And iron ore hardness is big, is difficult to fragmentation and grinding, causes unit output low, the power consumption height.Therefore, strengthened the cost of manufacture of cement.
In sum, the composition of raw materials of traditional technology mesosilicic acid salt cement grog promptly is unfavorable for protecting land resources, agroecological environment and environment for human survival, also is unfavorable for reducing production costs, and increases economic efficiency.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of pollution little, the Portland clinker that energy consumption is low, utilize trade waste.
Portland clinker of the present invention, its raw material by Wingdale, prepared from tailing sand of iron ore, flyash, the bottom of a pan slag are by weight percentage: Wingdale 73～86%, prepared from tailing sand of iron ore 5～18%, flyash 2～12%, slag 1～8% batching in the bottom of a pan is processed into cement clinker according to conventional cement production process.
Portland clinker of the present invention, wherein its raw material also comprise smart powder of pure iron and/or bauxitic clay, smart powder of pure iron and/or bauxitic clay be batching below 0.5% by weight percentage.
Portland clinker of the present invention, wherein said Wingdale are 76～83%, and prepared from tailing sand of iron ore is 6～16%, and flyash is 4～10%, and the bottom of a pan slag is 1～5%.
Portland clinker of the present invention, wherein said Wingdale are 79～81%, and prepared from tailing sand of iron ore is 9～13%, and flyash is 6～8%, and the bottom of a pan slag is 2～3%.
The advantage and the positively effect of Portland clinker of the present invention are: it has utilized a large amount of trade waste-prepared from tailing sand of iron ore and the bottom of a pan slag; starting material had both been saved; solve prepared from tailing sand of iron ore and the bottom of a pan slag again and deposited the problem of land occupation, protected physical environment.Because of prepared from tailing sand of iron ore is that the bottom of a pan slag also is the powdered material through the material of pulverizing, the abrasive dust current consumption of the material of these two kinds of components can be saved 4 degree/tons; In addition, the harmful element in prepared from tailing sand of iron ore, flyash, the bottom of a pan slag such as the content of sulphur, chlorine etc. are lower, have not only improved the thermal technology's condition in the preheater, improved the unit-hour output of rotary kiln, reduced power consumption, can save 5 degree/tons, avoided simultaneously atmospheric pollution.
Below in conjunction with embodiment Portland clinker of the present invention is described further.
Embodiment
Portland clinker of the present invention utilizes prepared from tailing sand of iron ore, flyash, the bottom of a pan slag of power plant after water treatment of iron ore dressing to be equipped with a certain amount of Wingdale and smart powder of micro-pure iron and/or bauxitic clay, makes through technologies such as batching, grinding, calcinings.
Embodiment 1
Portland clinker of the present invention, its raw material are by Wingdale, prepared from tailing sand of iron ore, flyash, smart powder of the bottom of a pan slag and pure iron and/or bauxitic clay are by weight percentage: Wingdale 74.5% (all being feasible in 73～86% scopes), prepared from tailing sand of iron ore 10% (all being feasible in 5～18% scopes), flyash 12% (all being feasible in 2～12% scopes), the bottom of a pan slag 3% (all being feasible in 1～8% scope), smart powder of pure iron and/or bauxitic clay 0.5% (all being feasible in 0～0.5% scope) are prepared burden, and are processed into cement clinker according to conventional cement production process.Wherein the weight percent of smart powder of pure iron and bauxitic clay is: the smart powder 70% (all being feasible in 0～100% scope) of pure iron, bauxitic clay 30% (all being feasible in 0～100% scope).
Embodiment 2
Portland clinker of the present invention, its raw material are by Wingdale, prepared from tailing sand of iron ore, flyash, smart powder of the bottom of a pan slag and pure iron and/or bauxitic clay are by weight percentage: Wingdale 76.5% (all being feasible in 76～83% scopes), prepared from tailing sand of iron ore 13% (all being feasible in 6～16% scopes), flyash 5% (all being feasible in 4～10% scopes), the bottom of a pan slag 5% (all being feasible in 1～5% scope), smart powder of pure iron and/or bauxitic clay 0.5% (all being feasible in 0～0.5% scope) are prepared burden, and are processed into cement clinker according to conventional cement production process.Wherein the weight percent of smart powder of pure iron and bauxitic clay is: the smart powder 50% (all being feasible in 0～100% scope) of pure iron, bauxitic clay 50% (all being feasible in 0～100% scope).
Embodiment 3
Portland clinker of the present invention, its raw material are by Wingdale, prepared from tailing sand of iron ore, flyash, smart powder of the bottom of a pan slag and pure iron and/or bauxitic clay are by weight percentage: Wingdale 80% (all being feasible in 79～81% scopes), prepared from tailing sand of iron ore 11% (all being feasible in 9～13% scopes), flyash 6% (all being feasible in 6～8% scopes), the bottom of a pan slag 2.7% (all being feasible in 2～3% scopes), smart powder of pure iron and/or bauxitic clay 0.3% (all being feasible in 0～0.5% scope) are prepared burden, and are processed into cement clinker according to conventional cement production process.Wherein the weight percent of smart powder of pure iron and bauxitic clay is: the smart powder 30% (all being feasible in 0～100% scope) of pure iron, bauxitic clay 70% (all being feasible in 0～100% scope).
Portland clinker of the present invention can utilize the industrial residue waste material, batching is after raw mill → raw material silo → preheater → rotary kiln, high-temperature calcination through 1350 ± 50 ℃ becomes Portland clinker, show through strictness detection product, the stability of grog is good, f-Ca≤0.5 (specific surface area is not more than at 300 o'clock), 3 days folding strength 〉=5.6MP; 3 days ultimate compression strength 〉=28MP, 28 days ultimate compression strength 〉=58MP, folding strength 〉=9MP.
Portland clinker of the present invention is compared with traditional portland grog prescription, also has the following advantages:
1, the unit-hour output of raw material preparation can improve 10～20% tons.
2, solved effectively in the sintering process, the preheater phenomenon of blocking has improved operation rate.
3, three days intensity of grog improves 3～5MP, and intensity improved 5～7MP in 28 days.
Portland clinker raw mix formula of the present invention, the same with traditional Portland clinker, adopt different essence kind prescriptions, can produce the Portland clinker grog of different purposes, the cement of making can be widely used in early-strength type prefabricated components, dykes and dams, road construction, heavy construction etc.
Claims (4)
1. Portland clinker, it is characterized in that its raw material by Wingdale, prepared from tailing sand of iron ore, flyash, the bottom of a pan slag are by weight percentage: Wingdale 73～86%, prepared from tailing sand of iron ore 5～18%, flyash 2～12%, slag 1～8% batching in the bottom of a pan is processed into cement clinker according to conventional cement production process.
2. Portland clinker according to claim 1 is characterized in that its raw material also comprise smart powder of pure iron and/or bauxitic clay, and smart powder of pure iron and/or bauxitic clay be batching below 0.5% by weight percentage.
3. Portland clinker according to claim 2 is characterized in that described Wingdale is 76～83%, and prepared from tailing sand of iron ore is 6～16%, and flyash is 4～10%, and the bottom of a pan slag is 1～5%.
4. Portland clinker according to claim 3 is characterized in that described Wingdale is 79～81%, and prepared from tailing sand of iron ore is 9～13%, and flyash is 6～8%, and the bottom of a pan slag is 2～3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011302364A CN1161300C (en) | 2001-12-29 | 2001-12-29 | Portland cement clinker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011302364A CN1161300C (en) | 2001-12-29 | 2001-12-29 | Portland cement clinker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1429784A CN1429784A (en) | 2003-07-16 |
| CN1161300C true CN1161300C (en) | 2004-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011302364A Expired - Fee Related CN1161300C (en) | 2001-12-29 | 2001-12-29 | Portland cement clinker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1161300C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310816A (en) * | 2014-09-30 | 2015-01-28 | 海拉尔蒙西水泥有限公司 | Silicate cement clinker produced by iron-zinc ore tailings powder ingredients |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100531945C (en) * | 2006-08-08 | 2009-08-26 | 中国铝业股份有限公司 | Bauxite tail piling method |
| CN102079651B (en) * | 2010-12-01 | 2013-03-20 | 浙江永强集团股份有限公司 | Glass fiber reinforced cement product and manufacturing method thereof |
| CN102649629B (en) * | 2011-10-13 | 2014-08-20 | 内蒙古蒙西水泥股份有限公司 | Method for producing portland cement clinker by utilizing low-grade industrial residues to replace irony raw materials |
| CN102649628B (en) * | 2011-10-13 | 2014-10-01 | 内蒙古蒙西水泥股份有限公司 | Method for producing super-low-alkali silicate cement clinker by using industrial waste residue on 5KT/D dry-process kiln |
| CN103803819A (en) * | 2012-11-15 | 2014-05-21 | 福建科福材料有限公司 | Silicate cement clinker prepared by using marble powder and preparation method thereof |
| CN103755172B (en) * | 2014-02-14 | 2016-02-17 | 平阴山水水泥有限公司 | A kind of Low-cost production method of cement clinker |
| CN104355558B (en) * | 2014-10-28 | 2016-04-27 | 中南大学 | A kind of take Pb-Zn tailings as cement of raw material and preparation method thereof |
| CN109942212A (en) * | 2019-04-08 | 2019-06-28 | 亚泰集团哈尔滨水泥(阿城)有限公司 | A method of general-purpose cement clinker is produced using mine tailing substitution ferro-controlling raw material |
| CN112592081A (en) * | 2020-12-30 | 2021-04-02 | 临沂中联水泥有限公司 | Method for producing portland cement clinker by adding fine ash of paper mill |
| CN113912337A (en) * | 2021-11-17 | 2022-01-11 | 中交二公局第三工程有限公司 | Non-cracking pervious concrete and preparation method thereof |
-
2001
- 2001-12-29 CN CNB011302364A patent/CN1161300C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310816A (en) * | 2014-09-30 | 2015-01-28 | 海拉尔蒙西水泥有限公司 | Silicate cement clinker produced by iron-zinc ore tailings powder ingredients |
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| Publication number | Publication date |
|---|---|
| CN1429784A (en) | 2003-07-16 |
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Owner name: TANGSHAN XIEXING CEMENT CO., LTD. Free format text: FORMER OWNER: LI GUOCHENG; ZHU SHAODA Effective date: 20060512 |
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Effective date of registration: 20060512 Address after: 064400 Qian'an City, Hebei Province five heavy Anxiang five security village, Tangshan Association of Xing India Cements Limited Patentee after: Tangshan associated Xing India Cements Limited Address before: 064400, Qian'an, Hebei province Tangshan Xing Xing India Cements Limited agency Co-patentee before: Zhu Shaoda Patentee before: Li Guocheng |
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