CN109852789A - A kind of metallurgical briquetting compound binding agent and its production technology - Google Patents
A kind of metallurgical briquetting compound binding agent and its production technology Download PDFInfo
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- CN109852789A CN109852789A CN201910336996.6A CN201910336996A CN109852789A CN 109852789 A CN109852789 A CN 109852789A CN 201910336996 A CN201910336996 A CN 201910336996A CN 109852789 A CN109852789 A CN 109852789A
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- Prior art keywords
- binding agent
- compound binding
- bentonite
- metallurgical briquetting
- production technology
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Abstract
The invention discloses a kind of metallurgical briquetting compound binding agent and its production technologies, by Organic-inorganic composite binder formula, the shortcomings that effectively overcoming traditional inorganic binder, can replace common bentonitic use completely, the dosage of binder is down to 1.2% by original 2.5%, the taste 0.8% or so for improving iron ore pellets makes dioxide-containing silica reduce by 1% or so, improves furnace processor, improve coke ratio, reduce the blast furnace quantity of slag, improve the reproducibility of iron ore pellets, reduces energy consumption when smelting.
Description
Technical field
The present invention relates to metallurgical raw material field, a kind of metallurgical briquetting compound binding agent and its life are specifically related to
Production. art.
Background technique
Metallurgical briquetting is a kind of method of fine iron breeze agglomeration.It is to mix Iron concentrate and binder, in pelletizing base
It is rolled into 8-15 millimeters of diameter of green-ball, is then dried, baking and concretion molding forms the iron-bearing material with good metallurgical property,
Supply blast furnace process.The molding of metallurgical briquetting be unable to do without binder.Metallurgical briquetting uses bentonite as the viscous of iron ore pellets
Tie agent.Bentonite has very strong caking property and high-temperature stability, and pelletizing plant adds the bentonite of 1-3% in iron ore extract powder,
8-15 millimeters of green-ball is rolled into nodulizer.Pelletizing is formed after drying, can increase substantially blast fumance ability.By
Each steel mill is widely used.
Also the class of crying takes off rock or amargosite to bentonite, it is the aqueous clay pit based on montmorillonite.Since it is with special
Property, such as: bloating tendency caking property and cationic exchangeability are claimed so being widely used in each industrial circle by people
Be omnipotent soil.In Metallurgy Industry, bentonite is equally also widely used.Due to its stability and caking property at high temperature,
A kind of irreplaceable cheap raw material is had become, and has worked out the national standard of GBT20973-2007 for it.Due to China's pelletizing
Production iron ore extract powder granularity used is thicker, in order to meet the needs of pelletizing, usually to match the bentonite of higher proportion；Simultaneously
Because China bentonite production technology content is low, market competition is fierce at a low price, and bentonite used in pelletizing production is most of
It is second-rate, furnace processor and coke ratio are affected, the blast furnace quantity of slag is increased.Since bentonite fusing point is higher, the roasting of acid pellet
It burns and needs higher maturing temperature, the high requirements on the equipment.Connecting bridge can be formed when pellet roasting between iron oxide particle, is blocked up
The channel into internal voids has been filled in, has caused pellet ore reduction to decline, increases energy consumption when smelting.
Summary of the invention
It is an object of the invention to overcome the shortcoming of above-mentioned traditional technology, a kind of low binder usage amount is provided, is mentioned
High iron ore pellets grade, the metallurgical briquetting compound binding agent and its production technology for reducing dioxide-containing silica.
The purpose of the present invention is what is reached by following technical measures:
A kind of metallurgical briquetting compound binding agent, is grouped as by the group of following parts by weight:
Bentonite 88-92%,
Organic sodium carboxymethylcellulose 2-3%,
Magnesia 5-8%,
Borax 0.5-1%.
As a preferred embodiment, 70% or more the bentonitic smectite content.
As a preferred embodiment, the bentonite is Na-modified Bentonite.
The production technology of above-mentioned metallurgical briquetting compound binding agent, comprising the following steps:
S1, stock, said components and parts by weight prepare material；
S2 mixes the sodium carbonate of bentonite raw ore addition 3%；
S3 is crushed to 200 mesh 98% and passes through；
The smashed bentonite in powder of S3, sodium carboxymethylcellulose, magnesia and borax are mixed in proportion, obtain finished product by S4.
As a preferred embodiment, dry-powder mixer mixing each component is used in the S4.
As a preferred embodiment, the proportion of each material according to laboratory simulation mass production proportion.
By adopting the above-described technical solution, compared with prior art, the invention has the advantages that
The invention discloses a kind of metallurgical briquetting compound binding agent and its production technologies, pass through Organic-inorganic composite binder
Formula, can replace common bentonitic use at the shortcomings that effectively overcoming traditional inorganic binder completely, the dosage of binder by
2.5% originally is down to 1.2%, improves the taste 0.8% or so of iron ore pellets, so that dioxide-containing silica is reduced by 1% or so, improves
Furnace processor improves coke ratio, reduces the blast furnace quantity of slag, improves the reproducibility of iron ore pellets, reduces energy consumption when smelting.
The invention will be further described With reference to embodiment.
Specific embodiment
Embodiment 1: a kind of metallurgical briquetting compound binding agent is grouped as by the group of following parts by weight:
Bentonite 88-92%,
Organic sodium carboxymethylcellulose 2-3%,
Magnesia 5-8%,
Borax 0.5-1%.
Wherein, the Na-modified Bentonite of 70% or more the bentonitic smectite content.
Embodiment 2: the production technology of metallurgical briquetting compound binding agent in above-described embodiment 1, comprising the following steps:
S1, stock prepare material according to component in embodiment 1 and parts by weight；
S2 mixes the sodium carbonate of bentonite raw ore addition 3%；
S3 is crushed to 200 mesh 98% and passes through；
S4, by the smashed bentonite in powder of S3, sodium carboxymethylcellulose, magnesia and borax according to laboratory simulation mass production
Ratio mixing mixes each component using dry-powder mixer, obtains finished product.
Claims (6)
1. a kind of metallurgical briquetting compound binding agent, is grouped as by the group of following parts by weight:
Bentonite 88-92%,
Organic sodium carboxymethylcellulose 2-3%,
Magnesia 5-8%,
Borax 0.5-1%.
2. a kind of metallurgical briquetting compound binding agent according to claim 1, it is characterised in that: bentonitic cover takes off
70% or more stone content.
3. a kind of metallurgical briquetting compound binding agent according to claim 1, it is characterised in that: the bentonite is sodium
Modified alta-mud.
4. according to claim 1 to the production technology of metallurgical briquetting compound binding agent described in 3 any one, including following step
It is rapid:
S1, stock, said components and parts by weight prepare material；
S2 mixes the sodium carbonate of bentonite raw ore addition 3%；
S3 is crushed to 200 mesh 98% and passes through；
The smashed bentonite in powder of S3, sodium carboxymethylcellulose, magnesia and borax are mixed in proportion, obtain finished product by S4.
5. a kind of production technology of metallurgical briquetting compound binding agent according to claim 4, it is characterised in that: the S4
It is middle to use dry-powder mixer mixing each component.
6. a kind of production technology of metallurgical briquetting compound binding agent according to claim 4, it is characterised in that: described each
The proportion of material according to laboratory simulation mass production proportion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910336996.6A CN109852789A (en) | 2019-04-25 | 2019-04-25 | A kind of metallurgical briquetting compound binding agent and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910336996.6A CN109852789A (en) | 2019-04-25 | 2019-04-25 | A kind of metallurgical briquetting compound binding agent and its production technology |
Publications (1)
| Publication Number | Publication Date |
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| CN109852789A true CN109852789A (en) | 2019-06-07 |
Family
ID=66889436
Family Applications (1)
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| CN201910336996.6A Pending CN109852789A (en) | 2019-04-25 | 2019-04-25 | A kind of metallurgical briquetting compound binding agent and its production technology |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122710A (en) * | 2021-03-16 | 2021-07-16 | 赵万英 | Composite pellet soil additive and composite pellet soil production method |
| CN113621796A (en) * | 2021-08-25 | 2021-11-09 | 辽宁鑫浩膨润土有限责任公司 | Modified bentonite for metallurgical pellets and production process thereof |
| CN114214512A (en) * | 2021-12-23 | 2022-03-22 | 云南科兴环保科技有限公司 | Pellet binder and preparation method and application thereof |
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|---|---|---|---|---|
| CN1229144A (en) * | 1998-03-17 | 1999-09-22 | 李学曾 | Compound binder for pelletizing ore and technology thereof |
| CN102021319A (en) * | 2009-09-18 | 2011-04-20 | 鞍钢集团矿业公司 | Novel binder for metallurgical pellet and preparation method thereof |
| CN103131851A (en) * | 2013-03-17 | 2013-06-05 | 海城市国田矿业有限公司 | Magnesium-rich bentonite binder for pellets |
| CN105861818A (en) * | 2015-01-23 | 2016-08-17 | 鞍钢股份有限公司 | High performance composite bentonite for pelletizing |
| CN107723465A (en) * | 2017-09-28 | 2018-02-23 | 毕德玉 | A kind of compound method of pelletizing binding agent containing magnesium |
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2019
- 2019-04-25 CN CN201910336996.6A patent/CN109852789A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1229144A (en) * | 1998-03-17 | 1999-09-22 | 李学曾 | Compound binder for pelletizing ore and technology thereof |
| CN102021319A (en) * | 2009-09-18 | 2011-04-20 | 鞍钢集团矿业公司 | Novel binder for metallurgical pellet and preparation method thereof |
| CN103131851A (en) * | 2013-03-17 | 2013-06-05 | 海城市国田矿业有限公司 | Magnesium-rich bentonite binder for pellets |
| CN105861818A (en) * | 2015-01-23 | 2016-08-17 | 鞍钢股份有限公司 | High performance composite bentonite for pelletizing |
| CN107723465A (en) * | 2017-09-28 | 2018-02-23 | 毕德玉 | A kind of compound method of pelletizing binding agent containing magnesium |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122710A (en) * | 2021-03-16 | 2021-07-16 | 赵万英 | Composite pellet soil additive and composite pellet soil production method |
| CN113621796A (en) * | 2021-08-25 | 2021-11-09 | 辽宁鑫浩膨润土有限责任公司 | Modified bentonite for metallurgical pellets and production process thereof |
| CN114214512A (en) * | 2021-12-23 | 2022-03-22 | 云南科兴环保科技有限公司 | Pellet binder and preparation method and application thereof |
| CN114214512B (en) * | 2021-12-23 | 2022-06-10 | 云南科兴环保科技有限公司 | Pellet binder and preparation method and application thereof |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20190607 |