CN101619251A - Moulded coal binder for melt reduction iron making and application thereof - Google Patents
Moulded coal binder for melt reduction iron making and application thereof Download PDFInfo
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- CN101619251A CN101619251A CN200910012719A CN200910012719A CN101619251A CN 101619251 A CN101619251 A CN 101619251A CN 200910012719 A CN200910012719 A CN 200910012719A CN 200910012719 A CN200910012719 A CN 200910012719A CN 101619251 A CN101619251 A CN 101619251A
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Abstract
The invention relates to a moulded coal binder for melt reduction iron making and an application thereof, belonging to the technical field of coal processing and utilization. The binder comprises the following components according to the parts by weight: 1-10 parts of CaO, 2-8 parts of MgO, 50-70 parts of SiO2, 10-20 parts of Al2O3 and 10-30 parts of coal tar. The method of application is as follows: the moulded coal binder is mixed with powdered coal and is added with water to prepare moulded coal by pressing at room temperature. Compared with the prior art, the invention has the advantage that the binder is mixed with powdered coal according to the defined proportion, then water is added for kneading, finally moulded coal is prepared by cold pressing in a dual roller shaping machine; the binder can replace block coal for melt reduction iron making and overcomes the problem that block coal is lack in the melt reduction iron making process.
Description
Technical field
The present invention relates to the coal processing and utilization technical field, is a kind of moulded coal binder for melt reduction iron making and application.
Background technology
Fused reduction iron-smelting is one of contemporary metallurgical industry cutting edge technology, and its Application and Development is the fundamental change to traditional blast furnace iron-making process, because its Production Flow Chart is short, pollutes and lacks, and has demonstrated application prospects, and China has also introduced smelting reduction process.This technology is to act as a fuel with 80%～85% hot and cold character good non-coking lump coal and 15%～20% coke, so that heat and reductive agent to be provided.According to coal resources in China and ature of coal situation, the under-supply bottleneck that will become China's development fused reduction iron-smelting technology of high-quality lump coal, therefore, the coal resource that exploitation makes new advances is present urgent problem.
Summary of the invention
The purpose of this invention is to provide a kind of moulded coal binder for melt reduction iron making and application, this binding agent mixes with coal dust with the regulation ratio, add water mix pinch after, cold compaction shaped coal on roller briquetting machine can replace lump coal to be used for fusion reducing furnace ironmaking.
For achieving the above object, the present invention realizes by following technology contents:
Moulded coal binder for melt reduction iron making, it by following compositions by weight ratio make: CaO1～10 weight parts, MgO2～8 weight parts, SiO
250～70 weight parts, Al
2O
310～20 weight parts, coal-tar pitch 10～30 weight parts; Method for making is: form mixing under the above-mentioned substance normal temperature.
The application of described moulded coal binder for melt reduction iron making mixes described briquette binder with fine coal, add water, is pressed into moulded coal under the normal temperature; The weight part ratio of described fine coal, binding agent, water is: fine coal 70～90 weight parts, binding agent 10～30 weight parts, water 10～30 weight parts.
Compared with prior art, advantage of the present invention is:, this binding agent mixes with coal dust with the regulation ratio, add water mix pinch after, cold compaction shaped coal on roller briquetting machine can replace lump coal to be used for fusion reducing furnace ironmaking, overcome in the fused reduction iron-smelting process problem that lump coal lacks.
Embodiment
The invention provides a kind of moulded coal binder for melt reduction iron making, this prescription is made up of inorganics and macromolecule organic.Inorganics is CaO, MgO, SiO
2And Al
2O
3, organism is a macromolecular compound.During preparation, earlier these materials are made powdery respectively, the weight part ratio in each composition takes by weighing again, all puts into stirrer then and mixes, and makes the dry powder compound binding agent.Each composition of this binding agent is made in following weight part ratio: CaO1～10 weight parts, MgO2～8 weight parts, SiO
250～70 weight parts, Al
2O
310～20 weight parts, macromolecule organic coal-tar pitch 10～30 weight parts.
With the collocation of a certain amount of starchy binder and fine coal, after mixing, add a certain amount of water and mix and pinch during use, when treating that coal charge has preferably plasticity, enter and be pressed into moulded coal on the roller briquetting machine.Stable operation in the moulded coal pressing process, full and its balling ratio height of moulded coal quality.Moulded coal its cold conditions and hot strength after seasoning all reach higher level, also good than Datong District lump coal, can make moulded coal not broken in transportation, add in the reduction furnace with complete lumpiness, in stove, be subjected to not efflorescence after a series of destructions such as high temperature thermal shocking, furnace charge bump, extruding, friction and chemical etching, do not influence material bed ventilation property, guarantee fused reduction iron-smelting production normal running.Not only quality is good for the moulded coal of producing with binding agent of the present invention, and also making the moulded coal drying all is to carry out at ambient temperature, need not be provided with before the moulded coal compacting and after treatment unit, can reduce found the factory investment and production operation expense like this, consequently reduce the briquette production cost.
The using method of this binding agent is: ratio by weight, fine coal 70～90 weight parts, binding agent 10～30 weight parts, join simultaneously in two roller mixers and mix, enter kneading machine after mixing, this moment, coal charge in kneading machine added the water of 10～30 weight parts, coal is treated to be drawn off after coal charge has certain plasticity, sends into moulding on the roller briquetting machine, and the moulded coal that suppresses is transported to moulded coal storage place and carries out seasoning.
Claims (2)
1, moulded coal binder for melt reduction iron making is characterized in that, it by following compositions by weight ratio make: CaO1～10 weight parts, MgO2～8 weight parts, SiO
250～70 weight parts, Al
2O
310～20 weight parts, coal-tar pitch 10～30 weight parts; Method for making is: form mixing under the above-mentioned substance normal temperature.
2, the application of the described moulded coal binder for melt reduction iron making of claim 1 is characterized in that, described briquette binder is mixed with fine coal, adds water, is pressed into moulded coal under the normal temperature; The weight part ratio of described fine coal, binding agent, water is: fine coal 70～90 weight parts, binding agent 10～30 weight parts, water 10～30 weight parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910012719 CN101619251B (en) | 2009-07-28 | 2009-07-28 | Moulded coal binder for melt reduction iron making and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910012719 CN101619251B (en) | 2009-07-28 | 2009-07-28 | Moulded coal binder for melt reduction iron making and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101619251A true CN101619251A (en) | 2010-01-06 |
| CN101619251B CN101619251B (en) | 2013-01-09 |
Family
ID=41512666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910012719 Active CN101619251B (en) | 2009-07-28 | 2009-07-28 | Moulded coal binder for melt reduction iron making and application thereof |
Country Status (1)
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| CN (1) | CN101619251B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345947A (en) * | 2016-05-06 | 2017-11-14 | 中国石油化工股份有限公司 | A kind of preparation method and applications of crude oil asphaltenes pyrolytic reaction sample |
| CN110317651A (en) * | 2019-05-30 | 2019-10-11 | 太原科瑞康洁净能源有限公司 | The method for producing clean formed coke based on alumina transition state binder |
| CN110452753A (en) * | 2019-05-30 | 2019-11-15 | 太原科瑞康洁净能源有限公司 | The method for producing clean formed coke based on aluminium dihydrogen phosphate transition state binder |
| CN110467953A (en) * | 2019-05-30 | 2019-11-19 | 太原科瑞康洁净能源有限公司 | The method for producing clean formed coke based on waterglass transition state binder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101348741B (en) * | 2007-07-19 | 2012-04-25 | 北京科兰之星环保科技有限公司 | Boiler molded coal and preparation thereof |
-
2009
- 2009-07-28 CN CN 200910012719 patent/CN101619251B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345947A (en) * | 2016-05-06 | 2017-11-14 | 中国石油化工股份有限公司 | A kind of preparation method and applications of crude oil asphaltenes pyrolytic reaction sample |
| CN107345947B (en) * | 2016-05-06 | 2020-05-22 | 中国石油化工股份有限公司 | Preparation method and application of crude oil asphaltene pyrolysis reaction sample |
| CN110317651A (en) * | 2019-05-30 | 2019-10-11 | 太原科瑞康洁净能源有限公司 | The method for producing clean formed coke based on alumina transition state binder |
| CN110452753A (en) * | 2019-05-30 | 2019-11-15 | 太原科瑞康洁净能源有限公司 | The method for producing clean formed coke based on aluminium dihydrogen phosphate transition state binder |
| CN110467953A (en) * | 2019-05-30 | 2019-11-19 | 太原科瑞康洁净能源有限公司 | The method for producing clean formed coke based on waterglass transition state binder |
| CN110452753B (en) * | 2019-05-30 | 2021-05-25 | 太原科瑞康洁净能源有限公司 | Method for producing clean formed coke based on aluminum dihydrogen phosphate transition state binder |
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| Publication number | Publication date |
|---|---|
| CN101619251B (en) | 2013-01-09 |
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Application publication date: 20100106 Assignee: Sino Coking Technology National Engineering Research Center Co Ltd Assignor: Sinosteel Anshan Research Institute of Thermo-energy Co., Ltd. Contract record no.: 2013210000137 Denomination of invention: Moulded coal binder for melt reduction iron making and application thereof Granted publication date: 20130109 License type: Exclusive License Record date: 20131121 |
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