CN101109042A - Iron ore group adhesive agent - Google Patents
Iron ore group adhesive agent Download PDFInfo
- Publication number
- CN101109042A CN101109042A CNA2007100125327A CN200710012532A CN101109042A CN 101109042 A CN101109042 A CN 101109042A CN A2007100125327 A CNA2007100125327 A CN A2007100125327A CN 200710012532 A CN200710012532 A CN 200710012532A CN 101109042 A CN101109042 A CN 101109042A
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- iron ore
- pellet
- per cent
- adhesive
- oxide
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Abstract
The invention relates to an iron ore pellet adhesive, which is characterized in that material components of the iron ore pellet adhesive are of silicon dioxide 3 per cent, aluminum oxide 2 per cent, calcium oxide 60 per cent, magnesium oxide 2 per cent, ferric oxide iron 1 per cnet, calcium carbonate 30 per cent as well as calcium chloride 2 per cent. The mixed materials are dried by a rotary kiln or steam to 4 per cent to 3 per cent water content and are coarsely sieved by an electron screen; the materials then enter to a ball crusher for fine grinding and are made into the iron ore pellet adhesive. The production test of the iron ore pellet of the invention is carried out to research the pellet compressive strength can meet the production requirements when the invention is used during production of the pellet under the decrepitation temperature higher than 550 DEG C. and the non-adhesion phenomenon of the pellet produced by the iron ore pellet adhesive at 1200 DEG C. roasting temperature. The test shows that the iron ore pellet adhesive of the invention is of good performance and is capable of replacing Na-bentonite adhesive added in the pellet.
Description
Technical field
The present invention relates to a kind of iron ore pellets tackiness agent.
Background technology
Iron ore pellets is the agglomeration method of a kind of granule iron concentrate of going out of 20th century early development, and it is that abundant ore source is exhausted day by day, the results of a large amount of development and use of lean ore resource.Along with the rise that modern blast furnace ironmaking is smelted flow process to the nearly harsh requirement of fine fodder day and ironmaking, the effect of pellet in Iron And Steel Industry be important further to have become a kind of indispensable high-quality furnace refractory.China's iron ore pellets production long-term existence that iron ore concentrate coarse size, moisture are big, wilkinite is with addition of problems such as amount are higher.Incomplete statistics according to pertinent data, the wilkinite of China iron ore pellets factory is with addition of amount average out to 3%-5%, indivedual pelletizing plants are up to more than 8%, and the wilkinite that external pellet is produced only is 0.1%-1% with addition of amount, and high like this wilkinite has had a strong impact on the economic benefit that domestic pellet is produced with addition of amount.
Summary of the invention
The present invention has overcome the defective of above-mentioned existence, and purpose provides and a kind ofly collects environmental protection, energy-conservation, volume increase, consumption reduction and be the novel iron ore pellets tackiness agent of one.
Iron ore pellets tackiness agent content Description of the present invention:
Iron ore pellets tackiness agent of the present invention is characterized in that: the raw material moiety of iron ore pellets tackiness agent is: silicon-dioxide 3%, aluminium sesquioxide 2%, calcium oxide 60%, magnesium oxide 2%, ferric oxide 1%, lime carbonate 30%, calcium chloride 2%.
The above-mentioned raw materials mixture is utilized rotary kiln or steam oven oven dry, and moisture through the scalping of electronics sieve, enters the ball mill fine grinding to 4%-3%, makes finished product iron ore pelletizing binder.
Iron ore pellets tackiness agent of the present invention is through industrial experimentation, research iron ore pellets tackiness agent is used for being higher than 550 ℃ at production pelletizing process burst temperature, pellet ultimate compression strength all can satisfy production requirement, maturing temperature with the pellet of iron ore pellets tackiness agent production reaches 1200 ℃, pellet does not have adhesion phenomenon, proof: iron ore pellets binder performance of the present invention is good, can replace the sodium bentonite tackiness agent that adds in the pellet fully.
Embodiment
Iron ore pellets tackiness agent of the present invention is to realize like this, utilize the chemical industry for making chlorine and alkali waste material to produce the iron ore pellets tackiness agent, its raw material moiety is: silicon-dioxide 3%, aluminium sesquioxide 2%, calcium oxide 60%, magnesium oxide 2%, ferric oxide 1%, lime carbonate 30%, calcium chloride 2%.
The above-mentioned raw materials mixture is utilized rotary kiln or steam oven oven dry, and moisture through the scalping of electronics sieve, enters the ball mill fine grinding to 4%-3%, makes finished product iron ore pelletizing binder.
The present invention is through industrial experimentation, compare test with the sodium bentonite tackiness agent, sodium bentonite binder dosage 2.0%, iron ore pellets binder dosage 3.0% of the present invention, the maturing temperature of sodium bentonite tackiness agent reaches 1180 ℃, the maturing temperature of iron ore pellets tackiness agent of the present invention reaches 1200 ℃, burst temperature greater than 550 ℃, and prove: iron ore pellets binder performance of the present invention is good, can replace the sodium bentonite tackiness agent that adds in the pellet fully.
Claims (1)
1. iron ore pellets tackiness agent, it is characterized in that: the raw material moiety of iron ore pellets tackiness agent is: silicon-dioxide 3%, aluminium sesquioxide 2%, calcium oxide 60%, magnesium oxide 2%, ferric oxide 1%, lime carbonate 30%, calcium chloride 2%;
The above-mentioned raw materials mixture is utilized rotary kiln or steam oven oven dry, and moisture through the scalping of electronics sieve, enters the ball mill fine grinding to 4%-3%, makes finished product iron ore pelletizing binder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100125327A CN101109042A (en) | 2007-08-22 | 2007-08-22 | Iron ore group adhesive agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100125327A CN101109042A (en) | 2007-08-22 | 2007-08-22 | Iron ore group adhesive agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101109042A true CN101109042A (en) | 2008-01-23 |
Family
ID=39041300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100125327A Pending CN101109042A (en) | 2007-08-22 | 2007-08-22 | Iron ore group adhesive agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101109042A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921910A (en) * | 2010-09-08 | 2010-12-22 | 武汉钢铁(集团)公司 | Pellet prepared from high-phosphorus iron ore |
| CN110563292A (en) * | 2019-09-11 | 2019-12-13 | 海绵城市投资有限公司 | Riverway bottom mud repairing agent and preparation and application methods thereof |
-
2007
- 2007-08-22 CN CNA2007100125327A patent/CN101109042A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921910A (en) * | 2010-09-08 | 2010-12-22 | 武汉钢铁(集团)公司 | Pellet prepared from high-phosphorus iron ore |
| CN101921910B (en) * | 2010-09-08 | 2011-11-23 | 武汉钢铁(集团)公司 | Pellet prepared from high-phosphorus iron ore |
| CN110563292A (en) * | 2019-09-11 | 2019-12-13 | 海绵城市投资有限公司 | Riverway bottom mud repairing agent and preparation and application methods thereof |
| CN110563292B (en) * | 2019-09-11 | 2022-03-01 | 海绵城市投资有限公司 | Riverway bottom mud repairing agent and preparation and application methods thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |