CN103451415A - Preparation method of semi-steel iron pellets as iron&steel smelting raw material - Google Patents
Preparation method of semi-steel iron pellets as iron&steel smelting raw material Download PDFInfo
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- CN103451415A CN103451415A CN2012101834980A CN201210183498A CN103451415A CN 103451415 A CN103451415 A CN 103451415A CN 2012101834980 A CN2012101834980 A CN 2012101834980A CN 201210183498 A CN201210183498 A CN 201210183498A CN 103451415 A CN103451415 A CN 103451415A
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Abstract
The invention provides a preparation method of semi-steel iron pellets as an iron&steel smelting raw material. The semi-steel iron pellets are prepared from five raw materials in percentage by weight: 80-86% of fine iron powder, 12-20% of carbon powder, 1-2% of a reducing agent, 1-4% of a catalyst and 2% of a binder. The preparation method of the semi-steel iron pellets comprises the following steps of 1, grinding the fine iron powder and the carbon powder into powder below 100 meshes by using crushing equipment; 2, putting 80-86% of the fine iron powder, 12-20% of the carbon powder, 1-2% of the reducing agent and 1-4% of the catalyst into a mixer for stirring and mixing evenly according to the weight percentages, and then adding 2% of the binder, and forming the mixed raw materials into pellets having the diameter in the range from 10 to 30 mm by using pelleting equipment; and 3, putting the pellets into a high-temperature vertical furnace at a temperature ranging from 1000 to 1200 DEG C, and heating for 20-30 minutes to obtain the product semi-steel iron pellets.
Description
Technical field
The present invention relates to a kind of preparation method of smelting iron and steel raw material-half rigidity pelletizing, belong to metallurgical technology field.
Background technology
Iron And Steel Industry is the basic substance of developing national economy and national defense construction, is also the sign of weighing an industrialization of the country, and the quality of steel quality depends primarily on many-sided factors such as raw material related in steel smelting procedure, fuel, smelting technology technology.In steel smelting procedure, its smelting technology is generally by blast furnace at present, after pig iron embryo and wastes of iron and steel raw material are smelted into to molten iron, then, after molten iron is carried out to art breading, then molten iron smelting is cast into to the required various steel of industry.This traditional smelting process is not only higher to the consumption of the energy (fuel and electric energy), comparatively serious to the pollution of environment, and has influence on to a certain extent smelting quality and the production cost of iron and steel.
Summary of the invention
The objective of the invention is for a kind of preparation method of smelting iron and steel raw material-half rigidity pelletizing is provided; The method is made half rigidity pelletizing and be can be used as main smelting iron and steel raw material use, use this raw material iron and steel smelting, need not transform, change existing steelmaking furnace and basic production technique, tap to tap time can be saved, reduce energy consumption, reduce smelting cost, improve smelting quality and the output of iron and steel, reduce blowdown, reduce in production process the impact on atmospheric air ambient and production work environment.
In order to achieve the above object, the present invention adopts following technical scheme to realize.
The preparation method of smelting iron and steel raw material-half rigidity pelletizing, it is characterized in that: this half rigidity pelletizing is formed by iron fine powder, carbon dust, reductive agent, catalyzer, five kinds of preparation of raw material of binding agent, and the weight ratio of raw material is: iron fine powder 80～86%, carbon dust 12～20%, reductive agent 1～2%, catalyzer 1～4%, binding agent 2%;
The preparation method of this half rigidity pelletizing is as follows:
One, adopt disintegrating apparatus to make the powder below 100 orders iron fine powder, carbon dust respectively;
Two, by weight by iron fine powder 80～86%, carbon dust 12～20%, reductive agent 1～2%, catalyzer 1～4%, insert in mixer and stirred, mix, then at the binding agent that adds weight ratio to be 2%, use ball equipment processed that above-mentioned mixing raw material is made to the globe that diameter is 10～30mm;
Three, above-mentioned globe is inserted in the high temperature shaft furnace that temperature is 1000～1200 ℃, heat 20～30 minutes, make product of the present invention, half rigidity pelletizing.
Described iron fine powder is the iron powder of making after iron ore is smelted.
The present invention mainly has following beneficial effect:
The method is made half rigidity pelletizing and be can be used as main smelting iron and steel raw material use, use this raw material iron and steel smelting, need not transform, change existing steelmaking furnace and basic production technique, tap to tap time can be saved, reduce energy consumption, reduce smelting cost, improve smelting quality and the output of iron and steel, reduce blowdown, reduce in production process the impact on atmospheric air ambient and production work environment.
The accompanying drawing explanation
Without accompanying drawing.
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment
Embodiment 1
One, adopt disintegrating apparatus to make the powder below 100 orders iron fine powder, carbon dust respectively;
Two, by weight by iron fine powder 80%, carbon dust 13%, reductive agent 2%, catalyzer 3%, insert in mixer and stirred, mix, then at the binding agent that adds weight ratio to be 2%, use ball equipment processed that above-mentioned mixing raw material is made to the globe that diameter is 10～30mm;
Three, above-mentioned globe is inserted in the high temperature shaft furnace that temperature is 1000～1200 ℃, heat 20 minutes, make product of the present invention, half rigidity pelletizing.
Embodiment 2
One, adopt disintegrating apparatus to make the powder below 100 orders iron fine powder, carbon dust respectively;
Two, by weight by iron fine powder 81%, carbon dust 14%, reductive agent 1%, catalyzer 2%, insert in mixer and stirred, mix, then at the binding agent that adds weight ratio to be 2%, use ball equipment processed that above-mentioned mixing raw material is made to the globe that diameter is 10～30mm;
Three, above-mentioned globe is inserted in the high temperature shaft furnace that temperature is 1000～1200 ℃, heat 30 minutes, make product of the present invention, half rigidity pelletizing.
Claims (2)
1. the preparation method of smelting iron and steel raw material-half rigidity pelletizing, it is characterized in that: this half rigidity pelletizing is formed by iron fine powder, carbon dust, reductive agent, catalyzer, five kinds of preparation of raw material of binding agent, and the weight ratio of raw material is: iron fine powder 80～86%, carbon dust 12～20%, reductive agent 1～2%, catalyzer 1～4%, binding agent 2%; The preparation method of this half rigidity pelletizing is as follows:
One, adopt disintegrating apparatus to make the powder below 100 orders iron fine powder, carbon dust respectively;
Two, by weight by iron fine powder 80～86%, carbon dust 12～20%, reductive agent 1～2%, catalyzer 1～4%, insert in mixer and stirred, mix, then at the binding agent that adds weight ratio to be 2%, use ball equipment processed that above-mentioned mixing raw material is made to the globe that diameter is 10～30mm;
Three, above-mentioned globe is inserted in the high temperature shaft furnace that temperature is 1000～1200 ℃, heat 20～30 minutes, make product of the present invention, half rigidity pelletizing.
2. the preparation method of smelting iron and steel raw material-half rigidity pelletizing according to claim 1, it is characterized in that: described iron fine powder is the iron powder of making after iron ore is smelted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101834980A CN103451415A (en) | 2012-06-01 | 2012-06-01 | Preparation method of semi-steel iron pellets as iron&steel smelting raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101834980A CN103451415A (en) | 2012-06-01 | 2012-06-01 | Preparation method of semi-steel iron pellets as iron&steel smelting raw material |
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| Publication Number | Publication Date |
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| CN103451415A true CN103451415A (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101834980A Pending CN103451415A (en) | 2012-06-01 | 2012-06-01 | Preparation method of semi-steel iron pellets as iron&steel smelting raw material |
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| CN (1) | CN103451415A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586172A (en) * | 2009-07-06 | 2009-11-25 | 何德武 | Method for preparing metallized pellet and reduced iron powder |
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2012
- 2012-06-01 CN CN2012101834980A patent/CN103451415A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586172A (en) * | 2009-07-06 | 2009-11-25 | 何德武 | Method for preparing metallized pellet and reduced iron powder |
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Application publication date: 20131218 |