CN103964711A - NID desulfurized fly ash wet-grinding modified mineral powder and preparation method thereof - Google Patents
NID desulfurized fly ash wet-grinding modified mineral powder and preparation method thereof Download PDFInfo
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- CN103964711A CN103964711A CN201410156226.0A CN201410156226A CN103964711A CN 103964711 A CN103964711 A CN 103964711A CN 201410156226 A CN201410156226 A CN 201410156226A CN 103964711 A CN103964711 A CN 103964711A
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- fly ash
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- desulphurize fly
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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 invention discloses an NID desulfurized fly ash wet-grinding modified mineral powder which comprises the following components by weight percent: 0.917-3.738% of desulfurized fly ash, 88.073-92.523% of slag powder, and 6.542-8.257% of water. The invention further discloses a preparation method of the NID desulfurized fly ash wet-grinding modified mineral powder. The preparation method comprises the following steps: (1), weighing the desulfurized fly ash and the slag powder according to the weight percentage respectively; (2), uniformly mixing the weighed desulfurized fly ash and the slag powder, uniformly adding the water with the weight percentage into the mixture, and uniformly mixing; 3), powder-grinding the mixture uniformly mixed in the step (2) in a grinding machine for 18-22 min, so as to obtain the desulfurized fly ash wet-grinding modified mineral powder. According to the invention, the production technology is simple, the strength after the mixing between the desulfurized fly ash and the slag powder, the additional value is high, the environmental pollution is small, and the modified mineral powder and the preparation method can be widely applied to the field of solid waste resource recycling in the iron and steel industry.
Description
Technical field
The present invention relates to Iron And Steel Industry solid waste resource circulation utilization field, refer to particularly a kind of NID desulphurize fly ash wet-milling mineral powder modified and preparation method thereof.
Background technology
Desulphurize fly ash is that sweetening agent absorbs the SO in sinter fume
2a kind of industrial solid castoff of rear formation, its major ingredient comprises CaSO
31/2H
2o22～30wt%, CaSO
42H
2o21～25wt%, Ca (OH)
226～35wt%, CaCO
318～258wt%, owing to lacking the mode of reasonably utilizing, stores up after mostly employing adds water, has not only taken a large amount of soils, and environment has also been caused to passive impact.During national requirements 12, all iron and steel enterprises all will complete the desulfurization transformation to sinter fume, but how desulfurization product is treated as consequent problem.At present, conventionally desulphurize fly ash is directly mixed with slag powders, but can cause like this slag powders intensity fast-descending, cannot directly apply, this has become each big steel enterprise problem demanding prompt solution.
Summary of the invention
Object of the present invention be exactly to provide a kind of production technique simple, mix NID desulphurize fly ash wet-milling mineral powder modified that intensity is high, added value is high, environmental pollution is little afterwards and preparation method thereof with slag powders.
For achieving the above object, the NID desulphurize fly ash wet-milling mineral powder modified that the present invention is designed, the weight percent of this each component of breeze is: desulphurize fly ash: 0.917～3.738%, slag powders: 88.073～92.523%, water: 6.542～8.257%.
As preferred version, the weight percent of this each component of breeze is: desulphurize fly ash: 1.843～2.791%, and slag powders: 89.401～91.163%, water: 6.977～7.834%.
Further, the weight percent of this each component of breeze is: desulphurize fly ash: 2.778%, and slag powders: 89.815%, water: 7.407%.
The NID desulphurize fly ash wet-milling mineral powder modified preparation method that the present invention is designed, comprises the steps: 1) in described ratio, take respectively desulphurize fly ash and slag powders; 2) desulphurize fly ash 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 desulphurize fly ash wet-milling mineral powder modified.
As preferred version, in described step 3), mixture is grinding 20min in grinding machine.
Principle of work of the present invention is as follows: after desulphurize fly ash, slag powders mix with water, by grinding in grinding machine, greatly improved the intensity of desulphurize fly ash wet-milling mineral powder modified, by table 1 and the contrast of table 2, can find, the intensity of desulphurize fly ash wet-milling mineral powder modified is significantly improved compared with prior art.
In sum, the invention has the advantages that: without modification, directly mix slag powders with desulphurize fly ash and compare, the mechanical property of desulphurize fly ash wet-milling mineral powder modified has greatly improved, with respect to the desulphurize fly ash slag powders before improving, performance boost has surpassed 10%, through test, more than the ultimate compression strength of 28 days has reached 45.0MPa, be as good as with the intensity of standard cement, its excellent serviceability can meet huge breeze market completely, thereby realize, desulphurize fly ash is efficient, the utilization of high added value, has also reduced the pollution to environment, and environmental benefit is obvious equally.
Embodiment
Below in conjunction with specific embodiment and form (seeing attached list), the present invention is described in further detail:
Embodiment 1:
In embodiment 1NID desulphurize fly ash wet-milling mineral powder modified, the weight of each component is: 1 ton of desulphurize fly ash, 99 tons of slag powders, 7 tons, water.
Embodiment 1NID desulphurize fly ash wet-milling mineral powder modified preparation method, comprises the steps:
1) in described ratio, take respectively desulphurize fly ash and slag powders;
2) desulphurize fly ash taking is mixed with slag powders, and evenly add the water of described ratio to mix;
3) mixture previous step being mixed is grinding 22min in grinding machine, can obtain desulphurize fly ash wet-milling mineral powder modified.
Known by contrast table 1 and table 2, adopt the desulphurize fly ash wet-milling mineral powder modified (in table 1, example 1) of the present embodiment formula, compare with the desulphurize fly ash breeze (table 2 Central Plains 1) of mixing same quality prior art, 28d intensity has obvious lifting: its 28d ultimate compression strength is 52.0MPa, than directly mixing, joins former 1 of desulphurize fly ash and has increased by 14.3%.
Embodiment 2:
In embodiment 2NID desulphurize fly ash wet-milling mineral powder modified, the weight of each component is: 2 tons of desulphurize fly ash, 98 tons of slag powders, 9 tons, water.
Embodiment 2NID desulphurize fly ash wet-milling mineral powder modified preparation method, comprises the steps:
1) in described ratio, take respectively desulphurize fly ash and slag powders;
2) desulphurize fly ash taking is mixed with slag powders, and evenly add the water of described ratio to mix;
3) mixture previous step being mixed is grinding 18min in grinding machine, can obtain desulphurize fly ash wet-milling mineral powder modified.
Known by contrast table 1 and table 2, adopt the desulphurize fly ash wet-milling mineral powder modified (in table 1, example 2) of the present embodiment formula, compare with the desulphurize fly ash breeze (table 2 Central Plains 2) of mixing same quality prior art, 28d intensity has obvious lifting: its 28d ultimate compression strength is 48.5MPa, than directly mixing, joins former 2 of desulphurize fly ash and has increased by 12.0%.
Embodiment 3:
In embodiment 3NID desulphurize fly ash wet-milling mineral powder modified, the weight of each component is: 3 tons of desulphurize fly ash, 97 tons of slag powders, 8 tons, water.
Embodiment 3NID desulphurize fly ash wet-milling mineral powder modified preparation method, comprises the steps:
1) in described ratio, take respectively desulphurize fly ash and slag powders;
2) desulphurize fly ash taking is mixed with slag powders, and evenly add the water of described ratio to mix;
3) mixture previous step being mixed is grinding 20min in grinding machine, can obtain desulphurize fly ash wet-milling mineral powder modified.
Known by contrast table 1 and table 2, adopt the desulphurize fly ash wet-milling mineral powder modified (in table 1, example 3) of the present embodiment formula, compare with the desulphurize fly ash breeze (table 2 Central Plains 3) of mixing same quality prior art, 28d intensity has obvious lifting: its 28d ultimate compression strength is 46.1MPa, than directly mixing, joins former 3 of desulphurize fly ash and has increased by 11.1%.
Embodiment 4:
In embodiment 4NID desulphurize fly ash wet-milling mineral powder modified, the weight of each component is: 4 tons of desulphurize fly ash, 96 tons of slag powders, 8 tons, water.
Embodiment 4NID desulphurize fly ash wet-milling mineral powder modified preparation method, comprises the steps:
1) in described ratio, take respectively desulphurize fly ash and slag powders;
2) desulphurize fly ash taking is mixed with slag powders, and evenly add the water of described ratio to mix;
3) mixture previous step being mixed is grinding 21min in grinding machine, can obtain desulphurize fly ash wet-milling mineral powder modified.
Known by contrast table 1 and table 2, adopt the desulphurize fly ash wet-milling mineral powder modified (in table 1, example 4) of the present embodiment formula, compare with the desulphurize fly ash breeze (table 2 Central Plains 4) of mixing same quality prior art, 28d intensity has obvious lifting: its 28d ultimate compression strength is 45.0MPa, than directly mixing, joins former 4 of desulphurize fly ash and has increased by 12.0%.
Subordinate list:
Table 1 desulphurize fly ash wet-milling of the present invention mineral powder modified performance
Table 2 prior art desulphurize fly ash breeze performance
Claims (5)
1. a NID desulphurize fly ash wet-milling mineral powder modified, is characterized in that: in this breeze, the weight percent of each component is: desulphurize fly ash: 0.917～3.738%, and slag powders: 88.073～92.523%, water: 6.542～8.257%.
2. NID desulphurize fly ash wet-milling mineral powder modified according to claim 1, is characterized in that: in this breeze, the weight percent of each component is: desulphurize fly ash: 1.843～2.791%, and slag powders: 89.401～91.163%, water: 6.977～7.834%.
3. NID desulphurize fly ash wet-milling mineral powder modified according to claim 2, is characterized in that: in this breeze, the weight percent of each component is: desulphurize fly ash: 2.778%, and slag powders: 89.815%, water: 7.407%.
4. a NID desulphurize fly ash wet-milling mineral powder modified preparation method claimed in claim 1, is characterized in that: comprise the steps:
1) in described ratio, take respectively desulphurize fly ash and slag powders;
2) desulphurize fly ash 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 desulphurize fly ash wet-milling mineral powder modified.
5. NID desulphurize fly ash wet-milling mineral powder modified preparation method according to claim 4, is characterized in that: in described step 3), mixture is grinding 20min in grinding machine.
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| Application Number | Priority Date | Filing Date | Title |
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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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|---|---|---|---|
| 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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| CN103964711A true CN103964711A (en) | 2014-08-06 |
| CN103964711B CN103964711B (en) | 2016-05-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007516A (en) * | 2016-05-23 | 2016-10-12 | 武汉钢铁股份有限公司 | Sintering flue gas dry process desulfurized fly ash treatment method |
| CN106064172A (en) * | 2016-05-31 | 2016-11-02 | 武汉钢铁股份有限公司 | 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 |
-
2014
- 2014-04-18 CN CN201410156226.0A patent/CN103964711B/en active Active
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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106007516A (en) * | 2016-05-23 | 2016-10-12 | 武汉钢铁股份有限公司 | Sintering flue gas dry process desulfurized fly ash treatment method |
| 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 |
| CN106064172A (en) * | 2016-05-31 | 2016-11-02 | 武汉钢铁股份有限公司 | 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 |
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| CN103964711B (en) | 2016-05-04 |
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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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Effective date of registration: 20200619 Address after: 430080 Qingshan District, Hubei, Wuhan Patentee after: Baowu huanke Wuhan Metal Resources Co.,Ltd. Address before: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee before: WUHAN IRON AND STEEL Co.,Ltd. |