CN103964711B - NID Desulphurization wet-milling mineral powder modified and preparation method thereof - Google Patents
NID Desulphurization wet-milling mineral powder modified and preparation method thereof Download PDFInfo
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- CN103964711B CN103964711B CN201410156226.0A CN201410156226A CN103964711B CN 103964711 B CN103964711 B CN 103964711B CN 201410156226 A CN201410156226 A CN 201410156226A CN 103964711 B CN103964711 B CN 103964711B
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- desulphurization
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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
Abstract
The invention discloses a kind of NID Desulphurization wet-milling mineral powder modified, in this breeze, each weight percentages of components is: Desulphurization: 0.917～3.738%, and slag powders: 88.073～92.523%, water: 6.542～8.257%. The invention also discloses a kind of NID Desulphurization wet-milling mineral powder modified preparation method, comprise the steps: 1) take respectively Desulphurization and slag powders in described ratio; 2) Desulphurization taking is mixed with slag powders, and evenly add the water of described ratio to mix; 3) mixture previous step being mixed is grinding 18～22min in grinding machine, can obtain Desulphurization wet-milling mineral powder modified. Production technology of the present invention is simple, mix with slag powders that intensity is high afterwards, added value is high, environmental pollution is little, can be widely used in steel and iron industry solid waste resource circulation utilization field.
Description
Technical field
The present invention relates to steel and iron industry solid waste resource circulation utilization field, refer to particularly onePlant NID Desulphurization wet-milling mineral powder modified and preparation method thereof.
Background technology
Desulphurization is that desulfurizing agent absorbs the SO in sinter fume2A kind of industrial solid of rear formationDiscarded object, its Main Ingredients and Appearance comprises CaSO3·1/2H2O22～30wt%，CaSO4·2H2O21～25wt%，Ca(OH)226～35wt%，CaCO318～258wt%，Owing to lacking the mode of reasonably utilizing, mostly employing is stored up after adding water, and has not only taken a large amount ofSoil, has also caused passive impact to environment. During national requirements 12, all iron and steelEnterprise all will complete the desulfurization transformation to sinter fume, but how desulfurization product is treated as thereuponAnd the problem of coming. At present, conventionally Desulphurization is directly mixed with slag powders, but can cause like thisSlag powders intensity fast-descending, cannot directly apply, and this has become each big steel enterprise and has urgently separatedProblem certainly.
Summary of the invention
Object of the present invention to provide exactly a kind of production technology simple, mixes with slag powders afterwards by forceSpend high, added value is high, environmental pollution is little NID Desulphurization wet-milling mineral powder modified and preparation thereofMethod.
For achieving the above object, the NID Desulphurization wet-milling mineral powder modified that the present invention is designed,The percentage by weight of the each component of this breeze is: Desulphurization: 0.917～3.738%, and slag powders:88.073～92.523%, water: 6.542～8.257%.
As preferred version, the percentage by weight of the each component of this breeze is: Desulphurization:1.843～2.791%, slag powders: 89.401～91.163%, water: 6.977～7.834%.
Further, the percentage by weight of the each component of this breeze is: Desulphurization: 2.778%,Slag powders: 89.815%, water: 7.407%.
The NID Desulphurization wet-milling mineral powder modified preparation method that the present invention is designed, comprises as followsStep: 1) take respectively Desulphurization and slag powders in described ratio; 2) by the desulfurization takingAsh mixes with slag powders, and evenly adds the water of described ratio to mix; 3) by frontThe mixture that one step mixes is grinding 18～22min in grinding machine, can obtain Desulphurization wet-millingMineral powder modified.
As preferred version, in described step 3), mixture is grinding 20min in grinding machine.
Operation principle of the present invention is as follows: after Desulphurization, slag powders mix with water, logicalCross grinding in grinding machine, greatly improved the intensity of Desulphurization wet-milling mineral powder modified, by table 1Can find with the contrast of table 2, the intensity of Desulphurization wet-milling mineral powder modified has bright compared with prior artAobvious raising.
In sum, the invention has the advantages that: directly mix slag with Desulphurization without modificationPowder is compared, and the mechanical property of Desulphurization wet-milling mineral powder modified has greatly improved, with respect to changingDesulphurization slag powders before entering, performance boost has exceeded 10%, through test, 28 daysMore than compression strength has reached 45.0MPa, be as good as the work that it is excellent with the intensity of standard cementMake performance and can meet huge breeze market completely, thereby realize, Desulphurization is efficient, high added valueUtilization, also reduced the pollution to environment, environmental benefit is obvious equally.
Detailed description of the invention
Below in conjunction with specific embodiment and form (seeing attached list), the present invention is done further in detailDescribe:
Embodiment 1:
In embodiment 1NID Desulphurization wet-milling mineral powder modified, the weight of each component is: Desulphurization 1Ton, 99 tons of slag powders, 7 tons, water.
Embodiment 1NID Desulphurization wet-milling mineral powder modified preparation method, comprises the steps:
1) take respectively Desulphurization and slag powders in described ratio;
2) Desulphurization taking is mixed with slag powders, and evenly add described ratioWater mix;
3) mixture previous step being mixed is grinding 22min in grinding machine, can be taken offSulphur ash wet-milling mineral powder modified.
Known by contrast table 1 and table 2, adopt the Desulphurization wet-milling modification of the present embodiment formulaBreeze (example 1 in table 1), with the Desulphurization breeze of mixing same quality prior art (in table 2Former 1) compare, 28d intensity has obvious lifting: its 28d compression strength is 52.0MPa, thanDirectly mix and join former 1 of Desulphurization and increased by 14.3%.
Embodiment 2:
In embodiment 2NID Desulphurization wet-milling mineral powder modified, the weight of each component is: Desulphurization 2Ton, 98 tons of slag powders, 9 tons, water.
Embodiment 2NID Desulphurization wet-milling mineral powder modified preparation method, comprises the steps:
1) take respectively Desulphurization and slag powders in described ratio;
2) Desulphurization taking is mixed with slag powders, and evenly add described ratioWater mix;
3) mixture previous step being mixed is grinding 18min in grinding machine, can be taken offSulphur ash wet-milling mineral powder modified.
Known by contrast table 1 and table 2, adopt the Desulphurization wet-milling modification of the present embodiment formulaBreeze (example 2 in table 1), with the Desulphurization breeze of mixing same quality prior art (in table 2Former 2) compare, 28d intensity has obvious lifting: its 28d compression strength is 48.5MPa, thanDirectly mix and join former 2 of Desulphurization and increased by 12.0%.
Embodiment 3:
In embodiment 3NID Desulphurization wet-milling mineral powder modified, the weight of each component is: Desulphurization 3Ton, 97 tons of slag powders, 8 tons, water.
Embodiment 3NID Desulphurization wet-milling mineral powder modified preparation method, comprises the steps:
1) take respectively Desulphurization and slag powders in described ratio;
2) Desulphurization taking is mixed with slag powders, and evenly add described ratioWater mix;
3) mixture previous step being mixed is grinding 20min in grinding machine, can be taken offSulphur ash wet-milling mineral powder modified.
Known by contrast table 1 and table 2, adopt the Desulphurization wet-milling modification of the present embodiment formulaBreeze (example 3 in table 1), with the Desulphurization breeze of mixing same quality prior art (in table 2Former 3) compare, 28d intensity has obvious lifting: its 28d compression strength is 46.1MPa, thanDirectly mix and join former 3 of Desulphurization and increased by 11.1%.
Embodiment 4:
In embodiment 4NID Desulphurization wet-milling mineral powder modified, the weight of each component is: Desulphurization 4Ton, 96 tons of slag powders, 8 tons, water.
Embodiment 4NID Desulphurization wet-milling mineral powder modified preparation method, comprises the steps:
1) take respectively Desulphurization and slag powders in described ratio;
2) Desulphurization taking is mixed with slag powders, and evenly add described ratioWater mix;
3) mixture previous step being mixed is grinding 21min in grinding machine, can be taken offSulphur ash wet-milling mineral powder modified.
Known by contrast table 1 and table 2, adopt the Desulphurization wet-milling modification of the present embodiment formulaBreeze (example 4 in table 1), with the Desulphurization breeze of mixing same quality prior art (in table 2Former 4) compare, 28d intensity has obvious lifting: its 28d compression strength is 45.0MPa, thanDirectly mix and join former 4 of Desulphurization and increased by 12.0%.
Subordinate list:
Table 1 Desulphurization wet-milling of the present invention mineral powder modified performance
Table 2 prior art Desulphurization breeze performance
Claims (5)
1. a NID Desulphurization wet-milling mineral powder modified, is characterized in that: in this breeze each groupThe percentage by weight of part is: Desulphurization: 0.917～3.738%, and slag powders: 88.073～92.523%,Water: 6.542～8.257%.
2. NID Desulphurization wet-milling mineral powder modified according to claim 1, its feature existsIn: in this breeze, the percentage by weight of each component is: Desulphurization: 1.843～2.791%, slagPowder: 89.401～91.163%, water: 6.977～7.834%.
3. NID Desulphurization wet-milling mineral powder modified according to claim 2, its feature existsIn: in this breeze, the percentage by weight of each component is: Desulphurization: 2.778%, slag powders:89.815%, water: 7.407%.
4. a NID Desulphurization wet-milling mineral powder modified preparation method claimed in claim 1,It is characterized in that: comprise the steps:
1) take respectively Desulphurization and slag powders in described ratio;
2) Desulphurization taking is mixed with slag powders, and evenly add described ratioWater mix;
3) mixture previous step being mixed is grinding 18～22min in grinding machine, can obtainDesulphurization wet-milling mineral powder modified.
5. NID Desulphurization wet-milling mineral powder modified preparation method according to claim 4,It is characterized in that: in described step 3), mixture is grinding 20min in grinding machine.
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| CN201410156226.0A CN103964711B (en) | 2014-04-18 | 2014-04-18 | NID Desulphurization wet-milling mineral powder modified and preparation method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106007516B (en) * | 2016-05-23 | 2018-03-27 | 武汉钢铁有限公司 | One kind sintering flue gas dry desulfurizing ash processing method |
| CN106064172B (en) * | 2016-05-31 | 2018-02-23 | 武汉钢铁有限公司 | CaSO in a kind of Desulphurization3Stabilization method |
| CN107176797A (en) * | 2017-07-05 | 2017-09-19 | 上海市建筑科学研究院 | Grey Treated By Modified Slag powder of one kind sintering flue gas dry desulfurizing and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584062A (en) * | 2012-03-15 | 2012-07-18 | 宝山钢铁股份有限公司 | Mineral powder modified by sintering dry desulphurization ash and preparation method thereof |
| CN102690070A (en) * | 2012-06-06 | 2012-09-26 | 江苏大峘集团有限公司 | Device for feeding desulfurization ash into slag micro powder, and method for feeding desulfurization ash by using device |
| CN103159423A (en) * | 2011-12-17 | 2013-06-19 | 鞍山钢铁集团公司 | Method for applying sintered desulfurized ash to granulated blast-furnace slag powder |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159423A (en) * | 2011-12-17 | 2013-06-19 | 鞍山钢铁集团公司 | Method for applying sintered desulfurized ash to granulated blast-furnace slag powder |
| CN102584062A (en) * | 2012-03-15 | 2012-07-18 | 宝山钢铁股份有限公司 | Mineral powder modified by sintering dry desulphurization ash and preparation method thereof |
| CN102690070A (en) * | 2012-06-06 | 2012-09-26 | 江苏大峘集团有限公司 | Device for feeding desulfurization ash into slag micro powder, and method for feeding desulfurization ash by using device |
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Effective date of registration: 20170721 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuchang, Hubei Friendship Road, No. A, block, floor 999, 15 Patentee before: Wuhan Iron & Steel (Group) Corp. |
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