CN103451420A - Metallurgical cooled agglomerated pellet binding material and production process thereof - Google Patents
Metallurgical cooled agglomerated pellet binding material and production process thereof Download PDFInfo
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- CN103451420A CN103451420A CN2012101815528A CN201210181552A CN103451420A CN 103451420 A CN103451420 A CN 103451420A CN 2012101815528 A CN2012101815528 A CN 2012101815528A CN 201210181552 A CN201210181552 A CN 201210181552A CN 103451420 A CN103451420 A CN 103451420A
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- China
- Prior art keywords
- sodium
- metallurgical
- sodium bentonite
- agglomerated pellet
- cooled agglomerated
- 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
- 239000008188 pellet Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 title abstract description 5
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229940080314 sodium bentonite Drugs 0.000 claims abstract description 36
- 229910000280 sodium bentonite Inorganic materials 0.000 claims abstract description 36
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 claims abstract description 25
- 229940039790 sodium oxalate Drugs 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000011159 matrix material Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 11
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 5
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims description 5
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 5
- 235000012216 bentonite Nutrition 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 239000011363 dried mixture Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 229910001425 magnesium ion Inorganic materials 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 229910001415 sodium ion Inorganic materials 0.000 claims description 5
- 230000008961 swelling Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 9
- 238000003756 stirring Methods 0.000 abstract description 7
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000000227 grinding Methods 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 6
- 206010053262 Skin swelling Diseases 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 235000019353 potassium silicate Nutrition 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000003469 silicate cement Substances 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 239000004375 Dextrin Substances 0.000 description 2
- 229920001353 Dextrin Polymers 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 235000019425 dextrin Nutrition 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 239000003265 pulping liquor Substances 0.000 description 2
- 229940079832 sodium starch glycolate Drugs 0.000 description 2
- 229920003109 sodium starch glycolate Polymers 0.000 description 2
- 239000008109 sodium starch glycolate Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 239000006188 syrup Substances 0.000 description 2
- 235000020357 syrup Nutrition 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 235000008504 concentrate Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Abstract
The invention discloses a metallurgical cooled agglomerated pellet binding material and a production process thereof. The binding material is composed of 97-99 parts of sodium bentonite and 1-3 parts of sodium oxalate. The production process comprises the steps including coarse grinding, mixing, extruding, drying, fine grinding and the like. The metallurgical cooled agglomerated pellet binding material has the advantages of being simple in production process, less in dosage, easy to stir, free of heating up and drying after a ball is pressed under normal pressure, pollution-free, and cooled and agglomerated under the normal temperature to obtain the excellent iron-containing dust-sludge cooled agglomerated pellet with good metallurgical performance.
Description
Technical field
The present invention relates to a kind of cooled agglomerated pellet matrix material, specifically the fixed metallurgical cooled agglomerated pellet matrix material of ion dust mud contaning and the production technique thereof of a kind of pressure ball at normal temperatures, belong to cooled agglomerated pellet matrix material field.
Background technology
Cooled agglomerated pellet (agglomerate) is that the iron content powder adds suitable binding agent, through mixing, pelletizing or the group of pressure, and without high-temperature roasting and fixed at low temperatures, the bead of making or agglomerate.It has certain combustion intensity, can be directly used in blast furnace ironmaking or Electric furnace steel making.
Iron content powder cooled agglomerated pellet, except the slag former for converter steelmaking, refrigerant, also can be used for producing direct-reduced iron (DRI).The general binding agent adopted of production iron content powder cooled agglomerated pellet has mineral binder bond (as silicate cement, wilkinite, water glass etc.), organic binder bond (as syrup, pitch, coal tar, sodium starch glycolate etc.), compound binding agent (as slaked lime+dextrin, wilkinite+spent pulping liquor etc.) at present.If adopt silicate cement fixed, the one, large usage quantity, the 2nd, hot strength during reduction is undesirable: if adopt water glass fixed, need drying and consolidating under 250-300 ℃ of condition after pelletizing, and ion dust mud contaning (or concentrate) need be dried to very low moisture in advance; If adopt syrup or sodium starch glycolate high expensive; If adopt slaked lime+dextrin, material is difficult for stirring.Above-mentioned various binding agent is mostly first resource, and (as the water glass) had need increase energy consumption when fixed, while smelting, reductibility is poor; Hot strength when (as the silicate cement) reductibility had and reduction is undesirable; (as the wilkinite) had can increase the consumption of smelting process flux; (as spent pulping liquor, the pitch) that has also may cause secondary pollution to environment.
Summary of the invention
In order to address the above problem, the present invention has designed a kind of metallurgical cooled agglomerated pellet matrix material and production technique thereof, described matrix material is comprised of following 97-99 part sodium bentonite and 1-3 part sodium oxalate, production technique comprises the steps such as coarse reduction, mixing, extruding, drying and fine powder be broken, and technique is simple, and consumption is few, easily stir, without heat drying, nuisanceless after the normal pressure pressure ball, fixedly under normal temperature can obtain the high-quality ion dust mud contaning cooled agglomerated pellet that metallurgical performance is good.
Technical scheme of the present invention is:
A kind of metallurgical cooled agglomerated pellet matrix material is grouped into by the one-tenth of following weight part:
Sodium bentonite 97-99 part, sodium oxalate 1-3 part.
Wherein, be preferably 98 parts of sodium bentonites, 2 parts of sodium oxalates.
A kind of production technique of above-mentioned metallurgical cooled agglomerated pellet matrix material comprises the following steps:
(1) sodium bentonite is crushed to particle diameter 0.1～1cm, wherein, is preferably 0.5cm;
(2) sodium bentonite above-mentioned steps (1) obtained adds sodium oxalate and water, and the 14-16% that the add-on of water is sodium bentonite and sodium oxalate gross weight is preferably 15%, mix and blend;
(3) mixture above-mentioned steps (2) obtained utilizes extrusion machine to be pushed, pressure 9.5 * 10
4, make calcium, the magnesium ion of the sodium ion displacement sodium bentonite of sodium oxalate, reach skin swelling value 100ml/3g, after extruding, water ratio is 15%;
(4) mixture after above-mentioned steps (3) extruding is carried out to drying, water ratio is at 5-13%;
(5) above-mentioned dried mixture is pulverized, to 0.074mm particle footpath, obtained finished product.
Described sodium bentonite is natural sodium bentonite.
The invention has the advantages that: consumption is few, easily stirs, without heat drying, nuisanceless after the normal pressure pressure ball, fixedly under normal temperature can obtain the high-quality ion dust mud contaning cooled agglomerated pellet that metallurgical performance is good.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
Embodiment 1
A kind of metallurgical cooled agglomerated pellet matrix material is grouped into by the one-tenth of following weight part:
97 parts of sodium bentonites, 3 parts of sodium oxalates;
Described sodium bentonite is natural sodium bentonite.
A kind of production technique of above-mentioned metallurgical cooled agglomerated pellet matrix material comprises the following steps:
(1) sodium bentonite is crushed to particle diameter 0.1cm;
(2) sodium bentonite above-mentioned steps (1) obtained adds sodium oxalate and water, and the add-on of water is 14% of sodium bentonite and sodium oxalate gross weight, mix and blend;
(3) mixture above-mentioned steps (2) obtained utilizes extrusion machine to carry out nip pressure 9.5 * 10
4, make calcium, the magnesium ion of the sodium ion displacement sodium bentonite of sodium oxalate, reach skin swelling value 100ml/3g, after extruding, water ratio is 15%;
(4) mixture after above-mentioned steps (3) extruding is carried out to drying, water ratio is at 5-13%;
(5) above-mentioned dried mixture is pulverized, to 0.074mm particle footpath, obtained finished product.
Easily stir, without heat drying, nuisanceless after the normal pressure pressure ball, fixedly under normal temperature can obtain the high-quality ion dust mud contaning cooled agglomerated pellet that metallurgical performance is good, colloid index is greater than 500ml, and water-intake rate is greater than 450ml/2 hour.
Embodiment 2
A kind of metallurgical cooled agglomerated pellet matrix material is grouped into by the one-tenth of following weight part:
99 parts of sodium bentonites, 1 part of sodium oxalate;
Described sodium bentonite is natural sodium bentonite.
A kind of production technique of above-mentioned metallurgical cooled agglomerated pellet matrix material comprises the following steps:
(1) sodium bentonite is crushed to particle diameter 0.1cm;
(2) sodium bentonite above-mentioned steps (1) obtained adds sodium oxalate and water, and the add-on of water is 15% of sodium bentonite and sodium oxalate gross weight, mix and blend;
(3) mixture above-mentioned steps (2) obtained utilizes extrusion machine to carry out nip pressure 9.5 * 10
4, make calcium, the magnesium ion of the sodium ion displacement sodium bentonite of sodium oxalate, reach skin swelling value 100ml/3g, after extruding, water ratio is 15%;
(4) mixture after above-mentioned steps (3) extruding is carried out to drying, water ratio is at 5-13%;
(5) above-mentioned dried mixture is pulverized, to 0.074mm particle footpath, obtained finished product.
Easily stir, without heat drying, nuisanceless after the normal pressure pressure ball, fixedly under normal temperature can obtain the high-quality ion dust mud contaning cooled agglomerated pellet that metallurgical performance is good, colloid index is greater than 500ml, and water-intake rate is greater than 450ml/2 hour.
Embodiment 3
A kind of metallurgical cooled agglomerated pellet matrix material is grouped into by the one-tenth of following weight part:
98 parts of sodium bentonites, 2 parts of sodium oxalates;
Described sodium bentonite is natural sodium bentonite.
A kind of production technique of above-mentioned metallurgical cooled agglomerated pellet matrix material comprises the following steps:
(1) sodium bentonite is crushed to particle diameter 0.1cm;
(2) sodium bentonite above-mentioned steps (1) obtained adds sodium oxalate and water, and the add-on of water is 14% of sodium bentonite and sodium oxalate gross weight, mix and blend;
(3) mixture above-mentioned steps (2) obtained utilizes extrusion machine to carry out nip pressure 9.5 * 10
4, make calcium, the magnesium ion of the sodium ion displacement sodium bentonite of sodium oxalate, reach skin swelling value 100ml/3g, after extruding, water ratio is 16%;
(4) mixture after above-mentioned steps (3) extruding is carried out to drying, water ratio is at 5-13%;
(5) above-mentioned dried mixture is pulverized, to 0.074mm particle footpath, obtained finished product.
Easily stir, without heat drying, nuisanceless after the normal pressure pressure ball, fixedly under normal temperature can obtain the high-quality ion dust mud contaning cooled agglomerated pellet that metallurgical performance is good, colloid index is greater than 500ml, and water-intake rate is greater than 450ml/2 hour.
Except as otherwise noted, the percentage ratio adopted in the present invention is weight percentage.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment, the present invention is had been described in detail, for a person skilled in the art, its technical scheme that still can put down in writing aforementioned each embodiment is modified, or part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a metallurgical cooled agglomerated pellet matrix material, is characterized in that, by the one-tenth of following weight part, is grouped into:
Sodium bentonite 97-99 part, sodium oxalate 1-3 part.
2. metallurgical cooled agglomerated pellet matrix material according to claim 1, is characterized in that, composition consists of: 98 parts of sodium bentonites, 2 parts of sodium oxalates.
3. the production technique of a metallurgical cooled agglomerated pellet matrix material as claimed in claim 1, is characterized in that, comprises the following steps:
(1) sodium bentonite is crushed to particle diameter 0.1～1em;
(2) sodium bentonite according to aforementioned proportion, above-mentioned steps (1) obtained adds sodium oxalate and water, the 14-16% that the add-on of water is sodium bentonite and sodium oxalate gross weight, mix and blend;
(3) mixture above-mentioned steps (2) obtained utilizes extrusion machine to be pushed, pressure 9.5 * 10
4, make calcium, the magnesium ion of the sodium ion displacement sodium bentonite of sodium oxalate, reach swelling value 100ml/3g, after extruding, water ratio is 15%;
(4) mixture after above-mentioned steps (3) extruding is carried out to drying, water ratio is at 5-13%;
(5) above-mentioned dried mixture is pulverized, to 0.074mm particle footpath, obtained finished product.
4. production technique according to claim 3, it is characterized in that: described sodium bentonite is natural sodium bentonite.
5. production technique according to claim 3 is characterized in that: in described step (1), to be crushed to particle diameter be 0.5cm to sodium bentonite.
6. production technique according to claim 3 is characterized in that: in described step (2), the add-on of water is 15% of sodium bentonite and sodium oxalate gross weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210181552.8A CN103451420B (en) | 2012-06-05 | 2012-06-05 | A kind of metallurgical cooled agglomerated pellet matrix material and production technique thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210181552.8A CN103451420B (en) | 2012-06-05 | 2012-06-05 | A kind of metallurgical cooled agglomerated pellet matrix material and production technique thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103451420A true CN103451420A (en) | 2013-12-18 |
| CN103451420B CN103451420B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210181552.8A Expired - Fee Related CN103451420B (en) | 2012-06-05 | 2012-06-05 | A kind of metallurgical cooled agglomerated pellet matrix material and production technique thereof |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032311A (en) * | 2016-11-03 | 2017-08-11 | 葛振华 | A kind of yellow phosphorus mineral powder pelletizing method |
| CN112429994A (en) * | 2020-12-11 | 2021-03-02 | 新疆中非夏子街膨润土有限责任公司 | Steel-making ash adhesive using sodium bentonite as main material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1341692A (en) * | 2001-09-28 | 2002-03-27 | 湖北名流累托石科技股份有限公司 | Modified Leituoshi stone for drilling liquor and its production mehtod |
| CN101112992A (en) * | 2006-07-29 | 2008-01-30 | 代斌 | Method for modifying alta-mud by employing NaNO3 |
| CN101182002A (en) * | 2007-10-26 | 2008-05-21 | 江苏工业学院 | Method for synthesizing organic bentonite by ultrasonic wave combined with microwave |
| CN101624190A (en) * | 2008-07-09 | 2010-01-13 | 代斌 | Method for utilizing NaSO3 to remodel bentonite |
-
2012
- 2012-06-05 CN CN201210181552.8A patent/CN103451420B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1341692A (en) * | 2001-09-28 | 2002-03-27 | 湖北名流累托石科技股份有限公司 | Modified Leituoshi stone for drilling liquor and its production mehtod |
| CN101112992A (en) * | 2006-07-29 | 2008-01-30 | 代斌 | Method for modifying alta-mud by employing NaNO3 |
| CN101182002A (en) * | 2007-10-26 | 2008-05-21 | 江苏工业学院 | Method for synthesizing organic bentonite by ultrasonic wave combined with microwave |
| CN101624190A (en) * | 2008-07-09 | 2010-01-13 | 代斌 | Method for utilizing NaSO3 to remodel bentonite |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032311A (en) * | 2016-11-03 | 2017-08-11 | 葛振华 | A kind of yellow phosphorus mineral powder pelletizing method |
| CN112429994A (en) * | 2020-12-11 | 2021-03-02 | 新疆中非夏子街膨润土有限责任公司 | Steel-making ash adhesive using sodium bentonite as main material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103451420B (en) | 2016-03-30 |
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Inventor after: Zong Xuwei Inventor before: Xiang Jinjun |
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Effective date of registration: 20160224 Address after: Yuying road Chengyang District 266000 Shandong city of Qingdao province No. 168 11 Applicant after: Zong Xuwei Address before: 250022, No. five, No. 74, Jianguo Road, Shizhong District, Shandong, Ji'nan Applicant before: Xiang Jinjun |
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Effective date of registration: 20180919 Address after: 266111 No. 826-100 Huadong Road, hi tech Zone, Qingdao, Shandong Patentee after: QINGDAO XIJIA GRAPHENE TECHNOLOGY CO.,LTD. Address before: 266000 11 Yuying Road No. 168, Yuen Ying Road, Chengyang District, Qingdao, Shandong Patentee before: Zong Xuwei |
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