CN104342552A - Composite adhesive for metallurgical pellet and production method thereof - Google Patents
Composite adhesive for metallurgical pellet and production method thereof Download PDFInfo
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- CN104342552A CN104342552A CN201410707281.4A CN201410707281A CN104342552A CN 104342552 A CN104342552 A CN 104342552A CN 201410707281 A CN201410707281 A CN 201410707281A CN 104342552 A CN104342552 A CN 104342552A
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- composite adhesive
- metallurgical
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- binder bond
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Abstract
The invention discloses a composite adhesive for a metallurgical pellet and a production method thereof, relates to an adhesive used in a metal smelting process and a method for producing the adhesive, and aims to provide an adhesive for favorably improving the metal smelting performance of subsequent smelting and reducing the smelting energy consumption and the emission of pollution gases. The composite adhesive for the metallurgical pellet comprises organic powder and bentonite, wherein the mass ratio of the organic powder to the bentonite is 1:1; the organic powder comprises a dispersant and an organic adhesive in percentage by mass: 95-99.5 percent of dispersant and 0.5-5 percent of organic adhesive. In order to produce the composite adhesive, the three steps of taking the materials, manufacturing the organic powder and manufacturing the composite adhesive are required.
Description
Technical field
The present invention relates to the tackiness agent used in a kind of Metal smelting process, particularly relate to a kind of tackiness agent used in the metallurgical briquetting stage.
Background technology
Metallurgical briquetting is after thin fine ore adds a small amount of tackiness agent mixing, the mechanical force of capillary force and rotary motion is relied on to cause the green-ball of diameter 8 ~ 16mm, then dry on roasting apparatus, under high temperature oxidation stability atmosphere the brilliant bridged bond of Fe2O3 recrystallize be consolidated into of high grade, intensity good, even-grained spherical iron-smelting raw material.
The tackiness agent that metallurgical briquetting uses generally comprises two large classes: one is organic binder bond, and two is inorganic adhesives.Organic binder bond because price is high, consumption is few, dispersion is difficult, and has harsh requirement to the pellet forming process of powdered iron ore, the less use of China.Inorganic adhesive main component is wilkinite, and part uses lime or other clay class tackiness agents.China's bentonite resource enriches, and exploitation tooling cost is low, strong adaptability, controlled range wide, is main pelletizing binder.
Bentonitic main component is Na
x(H
2o)
4(Al
2-xmg
0.83) Si
4o
10) (OH)
2carrying out the process of Metal smelting to improve the characteristic of smelting, must eliminate bentonitic residual to the full extent, have to because of bentonitic smelting consume the fuel higher than tradition ironmaking mode one times, and higher than the raw material for neutralization reaction of tradition ironmaking mode several times, such as lime stone or rhombspar.And according to statistics, China's metallurgical briquetting annual production is up to 1.3 hundred million tons, year consumes nearly 3,000,000 tons of wilkinite, this shows that annual China can millions of tons meter in order to smelt iron the fuel that consumes and the raw material for neutralization reaction more, not only cause huge fuel and the consumption of natural resources, and tremendous influence be also result in environment.
Summary of the invention
The technical problem that the present invention mainly will solve is to provide a kind of composite adhesive for metallurgical briquetting, and this composite adhesive is conducive to improving follow-up smelted Metal smelting performance, reduces and smelts energy consumption, reduces environmental pollution.
The technical problem that the present invention will solve further is to provide a kind of composite adhesive for metallurgical briquetting, and the raw material alternative spatial of this composite adhesive is comparatively large, thus its thin fine ore kind that is suitable for wider.
The technical problem that the present invention mainly will solve also comprises provides a kind of method of producing above-mentioned composite adhesive, and this production method program is simple, with low cost, yield rate is high.
A kind of composite adhesive for metallurgical briquetting of the present invention, comprises organic powder and wilkinite, and described organic powder and bentonitic mass ratio are 1:1; Described organic powder comprises disperse materials and organic binder bond: by percentage to the quality, disperse materials: 95% ~ 99.5%, organic binder bond: 0.5% ~ 5%.
A kind of composite adhesive for metallurgical briquetting of the present invention, wherein said disperse materials is hydrophilicly burn lost article material or hydrophilic ferrous material.
A kind of composite adhesive for metallurgical briquetting of the present invention, wherein said hydrophilic water content of burning lost article material or hydrophilic ferrous material is less than 3%.
A kind of composite adhesive for metallurgical briquetting of the present invention, the wherein said hydrophilic lost article material that burns is Sodium salts humic acids, coal, carbonization stalk or carbonization rice husk.
A kind of composite adhesive for metallurgical briquetting of the present invention, wherein said ferrous material is spathic iron ore, limonite, rhombohedral iron ore, metallurgical dedusting ash or steel-smelting sewage sludge.
A kind of composite adhesive for metallurgical briquetting of the present invention, wherein said organic binder bond is Xylo-Mucine, Vltra tears, starch ethers thickening material or polyacrylamide.
A kind of method of producing above-mentioned composite adhesive of the present invention, comprises the steps:
A) feeding; By percentage to the quality, according to disperse materials: 95% ~ 99.5%, organic binder bond: 0.5% ~ 5%; (disperse materials+organic binder bond): the ratio of wilkinite=1:1 takes disperse materials, organic binder bond and wilkinite respectively;
B) organic powder is made; The disperse materials taken in step a and organic binder bond are put into shredder grind, until 200 order particle accountings are greater than 90%, so far organic powder completes;
C) composite adhesive is made; The wilkinite taken in the organic powder made in step b and step a is put into mixer fully mix, so far composite adhesive just completes.
A kind of composite adhesive for metallurgical briquetting of the present invention is owing to reducing bentonitic content; thus carry out at a kind of composite adhesive for metallurgical briquetting of use the present invention the usage quantity reducing fuel and the raw material for neutralization reaction in the process of Metal smelting; both save resource, protect environment again.
A kind of disperse materials for using in the composite adhesive of metallurgical briquetting of the present invention can be selected and hydrophilicly burn lost article material, also can select ferrous material.Dispersed material can select Sodium salts humic acids, coal, carbonization stalk or carbonization rice husk more specifically, also can select spathic iron ore, limonite, rhombohedral iron ore, metallurgical dedusting ash or steel-smelting sewage sludge.Why the selectable range of disperse materials is so wide, its objective is metallurgical briquetting in order to adapt to different thin fine ores and can use local resource at a low price and reduce costs.
A kind of method of producing above-mentioned composite adhesive of the present invention only comprises three steps, and the equipment that these three steps adopt is all conventional equipment, the method program producing above-mentioned composite adhesive is as can be seen here simple, without the need to dropping into too many cost, and the composite adhesive yield rate of producing is high.
Embodiment
For a composite adhesive for metallurgical briquetting, comprise organic powder and wilkinite, described organic powder and bentonitic mass ratio are 1:1; Described organic powder comprises disperse materials and organic binder bond: by percentage to the quality, disperse materials: 95% ~ 99.5%, organic binder bond: 0.5% ~ 5%.
Wherein said disperse materials both can select the hydrophilic lost article material that burns also can select hydrophilic ferrous material, but used disperse materials water content is less than 3% to use which kind of disperse materials all must ensure, because only have when the water content of disperse materials is less than 3%, organic binder bond just can not be concentrated and be gathered on a certain disperse materials among a small circle, just can avoid the conglomeration of disperse materials, just can make organic binder bond and the complete Homogeneous phase mixing of disperse materials, and then the quality that the follow-up metallurgical briquetting of guarantee makes.
When disperse materials be hydrophilic burn lost article material time, concrete can select Sodium salts humic acids, coal, carbonization stalk or carbonization rice husk.
When disperse materials is hydrophilic ferrous material, concrete can select spathic iron ore, limonite, rhombohedral iron ore, metallurgical dedusting ash or steel-smelting sewage sludge.
According to the difference of selected disperse materials, the organic binder bond used also should from Xylo-Mucine, Vltra tears, starch ethers thickening material or polyacrylamide choice for use.
The market value that following table is each organic binder bond and the breeze kind that is suitable for, and its quality proportion relatively reasonable in composite adhesive.
| Organic binder bond kind | Price (yuan/ton) | Subject range | Proportion scale |
| Xylo-Mucine | 7000-10000 | Most of powdered iron ore | 2％-4％ |
| Vltra tears | 15000-20000 | Comparatively fine iron ore powder | 1％-2％ |
| Starch ethers thickening material | 3000-400 | Most of powdered iron ore | 3％-5％ |
| Polyacrylamide | 20000-40000 | Comparatively crude iron breeze | 0.5％-1％ |
When using the present invention a kind of composite adhesive for metallurgical briquetting to carry out metallurgical briquetting operation, fine ore and the certain proportioning of composite adhesive demand fulfillment just can reach optimum regime; Through test, wherein by percentage to the quality, fine ore: 98.5% ~ 99%; Composite adhesive: 1% ~ 1.5% is better range of choice.
Produce a method for above-mentioned composite adhesive, comprise the steps:
A) feeding; By percentage to the quality, according to disperse materials: 95% ~ 99.5%, organic binder bond: 0.5% ~ 5%; (disperse materials+organic binder bond): the ratio of wilkinite=1:1 takes disperse materials, organic binder bond and wilkinite respectively;
B) organic powder is made; The disperse materials taken in step a and organic binder bond are put into shredder grind, until 200 order particle accountings are greater than 90%, so far organic powder completes;
C) composite adhesive is made; The wilkinite taken in the organic powder made in step b and step a is put into mixer fully mix, so far composite adhesive just completes.
Below by multiple embodiment, a kind of enormous benefits brought in metallurgical briquetting process for the composite adhesive of metallurgical briquetting of the present invention is described.The composite adhesive wherein used in following each embodiment is all that the aforesaid method adopted is made, and just repeats no more in each specific embodiment.
Embodiment one:
Certain steel mill 10m
2palletizing shaft furnace, there is damp mill mixing equipment, often produce 500,000 tons of pelletizings, former consumption artificial natridization wilkinite 0.75 ton, after use a kind of composite adhesive for metallurgical briquetting of the present invention instead, specifically consist of: 0.288 ten thousand ton of Sodium salts humic acids, 0.012 ten thousand ton of Xylo-Mucine, 0.3 ten thousand tons of wilkinites; Result increases iron 3000 tons, and benefit increases by 4,000,000 yuan.
Embodiment two:
Certain steel mill 8m
2palletizing shaft furnace, has damp mill mixing equipment, often produces 400,000 tons of pelletizings, former consumption artificial natridization wilkinite 0.52 ten thousand ton; After use a kind of composite adhesive for metallurgical briquetting of the present invention instead, specifically consist of: 0.194 ten thousand ton of limonite, 0.006 ten thousand ton of Vltra tears, 0.2 ten thousand tons of wilkinites; Result increases iron 2000 tons, and benefit increases by 1,600,000 yuan.
Embodiment three:
Certain steel mill 10m
2palletizing shaft furnace, has damp mill mixing equipment, often produces 500,000 tons of pelletizings, former consumption artificial natridization wilkinite 0.7 ten thousand tons; After use a kind of composite adhesive for metallurgical briquetting of the present invention instead, specifically consist of: 0.3486 ten thousand tons of coals, 0.0014 ten thousand tons of polyacrylamides and emulsifying agents, 0.35 ten thousand ton of wilkinite; Result increases iron 3000 tons, and eliminates damp mill mixing equipment, saves damp mill equipment running cost 5,000,000 yuan year.
As can be seen from embodiment 1 ~ 3, when using the present invention a kind of composite adhesive for metallurgical briquetting to carry out ball, the amount general control of composite adhesive is between 1% ~ 1.5% of the pelletizing total amount of produced ball, wherein consumed bentonitic amount generally between 0.5% ~ 0.75%, compared to 2.2% consumption of bentonite amount of average national level; When using the present invention's one metallurgical briquetting composite adhesive, consumption of bentonite amount reduces 60% ~ 70%, saves a large amount of natural resourcess and fuel source, improves productivity effect.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (7)
1. for a composite adhesive for metallurgical briquetting, comprise organic powder and wilkinite, described organic powder and bentonitic mass ratio are 1:1; Described organic powder comprises disperse materials and organic binder bond: by percentage to the quality, disperse materials: 95% ~ 99.5%, organic binder bond: 0.5% ~ 5%.
2. a kind of composite adhesive for metallurgical briquetting according to claim 1, is characterized in that: described disperse materials is hydrophilicly burn lost article material or hydrophilic ferrous material.
3. a kind of composite adhesive for metallurgical briquetting according to claim 2, is characterized in that: described hydrophilic water content of burning lost article material or hydrophilic ferrous material is less than 3%.
4. a kind of composite adhesive for metallurgical briquetting according to claim 3, is characterized in that: the described hydrophilic lost article material that burns is Sodium salts humic acids, coal, carbonization stalk or carbonization rice husk.
5. a kind of composite adhesive for metallurgical briquetting according to claim 3, is characterized in that: described is spathic iron ore, limonite, rhombohedral iron ore, metallurgical dedusting ash or steel-smelting sewage sludge containing hydrophilic iron material.
6. a kind of composite adhesive for metallurgical briquetting according to claim 1, is characterized in that: described organic binder bond is Xylo-Mucine, Vltra tears, starch ethers thickening material or polyacrylamide.
7. produce a method for the composite adhesive for metallurgical briquetting described in claim 1, comprise the steps:
A) feeding; Disperse materials, organic binder bond and wilkinite is taken respectively according to ratio according to claim 1;
B) organic powder is made; The disperse materials taken in step a and organic binder bond are put into shredder grind, until 200 order particle accountings are greater than 90%, so far organic powder completes;
C) composite adhesive is made; The wilkinite taken in the organic powder made in step b and step a is put into mixer fully mix, so far composite adhesive just completes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410707281.4A CN104342552B (en) | 2014-11-28 | 2014-11-28 | A kind of composite adhesive for metallurgical briquetting and production method thereof |
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| CN201410707281.4A CN104342552B (en) | 2014-11-28 | 2014-11-28 | A kind of composite adhesive for metallurgical briquetting and production method thereof |
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| CN104342552A true CN104342552A (en) | 2015-02-11 |
| CN104342552B CN104342552B (en) | 2016-08-24 |
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Cited By (7)
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| CN105925795A (en) * | 2016-05-10 | 2016-09-07 | 江苏省冶金设计院有限公司 | Composite binder and application thereof to powdered iron forming |
| CN106086399A (en) * | 2016-07-21 | 2016-11-09 | 北京神雾环境能源科技集团股份有限公司 | A kind of copper ashes carbonaceous pelletizing molding compound binding agent |
| CN107641710A (en) * | 2017-09-30 | 2018-01-30 | 四川德胜集团钒钛有限公司 | A kind of agglomerates method for reducing bentonite usage amount |
| CN108149010A (en) * | 2017-11-16 | 2018-06-12 | 陕西臻焱节能环保科技有限公司 | Low burn consumption pelletizing binder and preparation method thereof |
| CN110283995A (en) * | 2019-07-31 | 2019-09-27 | 河北东慈环保科技有限公司 | Dry binder of the iron powder pellets containing charcoal and its preparation method and application |
| CN110629020A (en) * | 2019-09-30 | 2019-12-31 | 鞍钢股份有限公司 | Pellet iron-based composite binder and preparation and use methods thereof |
| CN115279928A (en) * | 2020-05-18 | 2022-11-01 | 日本制铁株式会社 | Method for producing agglomerate and agglomerate |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925795A (en) * | 2016-05-10 | 2016-09-07 | 江苏省冶金设计院有限公司 | Composite binder and application thereof to powdered iron forming |
| CN106086399A (en) * | 2016-07-21 | 2016-11-09 | 北京神雾环境能源科技集团股份有限公司 | A kind of copper ashes carbonaceous pelletizing molding compound binding agent |
| CN107641710A (en) * | 2017-09-30 | 2018-01-30 | 四川德胜集团钒钛有限公司 | A kind of agglomerates method for reducing bentonite usage amount |
| CN108149010A (en) * | 2017-11-16 | 2018-06-12 | 陕西臻焱节能环保科技有限公司 | Low burn consumption pelletizing binder and preparation method thereof |
| CN110283995A (en) * | 2019-07-31 | 2019-09-27 | 河北东慈环保科技有限公司 | Dry binder of the iron powder pellets containing charcoal and its preparation method and application |
| CN110629020A (en) * | 2019-09-30 | 2019-12-31 | 鞍钢股份有限公司 | Pellet iron-based composite binder and preparation and use methods thereof |
| CN115279928A (en) * | 2020-05-18 | 2022-11-01 | 日本制铁株式会社 | Method for producing agglomerate and agglomerate |
| CN115279928B (en) * | 2020-05-18 | 2024-01-19 | 日本制铁株式会社 | Method for producing agglomerate and agglomerate |
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| CN104342552B (en) | 2016-08-24 |
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Effective date of registration: 20170904 Address after: 123003 Fuxin city of Liaoning province Haixinlu Taiping District No. 268 Patentee after: Liaoning Jinshi bentonite Co., Ltd. Address before: Zhangjiakou City, Hebei province 075100 Temple Street Xuanhua District 6-1-1-202 Patentee before: Ren Ruigang |
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