CN1212415C - Method for smelting boron-silicon-Fe - Google Patents
Method for smelting boron-silicon-Fe Download PDFInfo
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- CN1212415C CN1212415C CN 02117118 CN02117118A CN1212415C CN 1212415 C CN1212415 C CN 1212415C CN 02117118 CN02117118 CN 02117118 CN 02117118 A CN02117118 A CN 02117118A CN 1212415 C CN1212415 C CN 1212415C
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- boron
- silicon
- iron
- smelting
- boride
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Abstract
The present invention relates to a smelting method of boron ferric silicon. The smelting method comprises: 1. ferrum, boride and silica are used as the raw material of a main body, carbon is used as a reducing agent, carbohydrate is used as a loosening agent, and the use proportion of the ferrum, the boride and the silica is determined according to the components of the boron ferric silicon required to be produced; 2. the temperature in a smelting furnace is kept between 1900 DEG C and 2300 DEG C, and a reaction time is from 3.5h to 8h. 3. an arc-buried method is used as the smelting method. In the method, the carbon is used as the reducing agent, and the smelting can be carried out in an ore furnace by the arc-buried method. The method has the advantages of extensive raw material selection range, stable product quality, high yield, energy saving, no discharge of waste slag and waste water and low production cost. The boron and the silicon can be controlled and reduced according to requirements, and the method using the ore furnace to smelt the boron ferric silicon can determine the power parameters of the ore furnace and select the raw materials easy to purchase according to a production scale. Qualified products can be produced by making a reasonable compounding ratio according to the proportion of the boron silicon to be produced.
Description
Technical field
The present invention relates to the smelting process of ferrous alloy, specifically, relate to the smelting process of boron-silicon-Fe.
Background technology
Boron-silicon-Fe is called the silicon ferro-boron again, is mainly used in to produce amorphous alloy, smelting iron and steel and casting industry.The raw material of smelting at present boron-silicon-Fe mainly is with borax, boron oxide, ferro-boron and ferrosilicon, adopts the molten method of converting to smelt in intermediate frequency furnace, makes cost height, energy consumption big.
Summary of the invention
The smelting process that the purpose of this invention is to provide a kind of save energy, boron-silicon-Fe that cost is low.
The smelting process that relates to boron-silicon-Fe of the present invention comprises:
1. be body material with iron, boride, silica, with charcoal make reductive agent, carbohydrate is made raising agent, the composition of the boron-silicon-Fe of Sheng Chaning is determined the materials ratio of iron, boride and silica as required;
2. temperature remains between 1900 ℃-2300 ℃ in the smelting furnace, and the reaction times is 3.5h-8h;
3. smelting process submerged arc method.
Described smelting furnace is the hot stove in ore deposit, the granularity of described boride, silica, charcoal is less than 100mm, and its lower limit should guarantee the good ventilation property in the stove, and the size of iron and carbohydrate is determined according to the diameter of smelting furnace, can not cause built on stilts being as the criterion in the stove, generally below 30cm.
Wherein, described iron is selected any one in iron filings, scrap iron scrap stock, ferric oxide or the iron ore, perhaps their arbitrary combination for use.
Described boride is any one in boron trioxide, borax, boric acid or the crude boron stone, perhaps their arbitrary combination.
Described charcoal is any one in refinery coke, coke or the charcoal, perhaps their arbitrary combination.
Described carbohydrate adopts any one in sawdust, wooden unit, wood chip, make a fire material section or the crop stalk, perhaps their arbitrary combination.
Method of the present invention is made reductive agent with carbon, can smelt with the submerged arc method in the hot stove in ore deposit, and its material choice is wide, the stay in grade of product, and output is big, and save energy does not have waste residue, waste water to discharge, and production cost is lower.Can determine the power parameter of the hot stove in ore deposit according to industrial scale with the mine heat furnace smelting boron-silicon-Fe, the starting material that selection is easy to purchase at the borosilicate ratio that will produce, are worked out reasonable proportioning, can produce qualified product.
Embodiment
Method of the present invention comprises:
1. raw material adopts iron, boride, silica, charcoal, carbohydrate.Wherein iron, boride, silica are body material, make reductive agent with charcoal, and boron and Si reduction and iron are combined into boron-silicon-Fe.Carbohydrate is made raising agent, guarantees ventilation property and participate in the partial reduction reaction in smelting process.The composition of the boron-silicon-Fe product of Sheng Chaning is as required determined the materials ratio of iron, boride and silica.
2. temperature remains between 1900 ℃-2300 ℃ in the smelting furnace, and the reaction times is 3.5h-8h.
3. smelting process is the submerged arc method.
Owing to make raising agent with carbohydrate, therefore described smelting furnace can be used the hot stove in ore deposit.The granularity of described boride, silica, charcoal should not be greater than 100mm, but does not also declare meticulously, is as the criterion to guarantee the good ventilation property in the stove.The size of iron and carbohydrate is determined according to the diameter of smelting furnace, can not cause built on stilts being as the criterion in the stove, generally is advisable below 30cm.
Described iron can use any one in iron filings, scrap iron scrap stock, ferric oxide, the iron ore, perhaps their arbitrary combination.
Described boride can be any one in boron trioxide, borax, boric acid, the crude boron stone, perhaps their arbitrary combination.
Described charcoal can be any one in refinery coke, coke, the charcoal, perhaps their arbitrary combination.
Described carbohydrate can adopt sawdust, wooden unit, wood chip, make a fire material section, crop stalk, rolls in cane after the sugar etc. any one, perhaps their arbitrary combination as corn stalk, sorghum straw and sugarcane.
Method suitable for producing boracic 3%-19% of the present invention (weight ratio, hereinafter identical), siliceous 6%-40%, all the other are the boron-silicon-Fe of iron and inevitable impurity.
Be example to produce the 100kg boron-silicon-Fe below, the content of boron in the boron-silicon-Fe of Sheng Chaning as required, can calculate various raw material consumptions (kg) with following formula:
B
2O
3Consumption=(B
2O
3Nucleidic mass * alloy boron-containing quantity) ÷ (2B nucleidic mass * B
2O
3Purity * B
2O
3Reduction ratio)
In the formula: B
2O
3Be boron trioxide, the alloy boron-containing quantity needs the boron amount that contains in the boron-silicon-Fe of i.e. required production; B
2O
3Purity is percentage ratio, contained B in the different borides
2O
3Purity be different, must determine according to selected material, same, B
2O
3Reduction ratio also is different.Generally in boride, boron exists with the boron trioxide form, can draw the consumption of used boride thus.
The silica consumption can calculate with following formula:
Silica consumption (kg)=(SiO
2Nucleidic mass * alloy silicon content) (Si nucleidic mass * silica contains SiO to ÷
2Amount * SiO
2Reduction ratio)
SiO
2Be silicon-dioxide, the alloy silicon content needs the silicon amount that contains in the boron-silicon-Fe of i.e. required production; The different contained B in the place of production of silica
2O
3Amount be different, its reduction ratio also is different, must determine according to selected material.
The charcoal consumption can be determined by following calculation formula:
Carbon content in charcoal consumption (kg)=(3C nucleidic mass * alloy contains B amount ÷ 2B nucleidic mass+2C nucleidic mass * alloy si content ÷ Si nucleidic mass-carbohydrate amount * carbohydrate carbon content * carbohydrate scaling loss amount-electrode carbon increasing amount) * carbon coefficient of excess ÷ charcoal
Wherein, C is a carbon atom, and the carbon content in carbohydrate carbon content, carbohydrate scaling loss amount and the charcoal is determined according to the raw material of selecting for use; The electrode carbon increasing amount is determined according to the electric furnace of selecting; The carbon coefficient of excess is relevant in type, scale, the production stability of electric furnace.
The consumption of carbohydrate is the alloy designs amount.So-called design flow is the calculating datum quantity of boron-silicon-Fe, is example with 100 kilograms of boron-silicon-Fes, and its carbohydrate consumption is 100 kilograms.
Above-mentioned various consumption all can have certain regulation range:
Carbohydrate fluctuation range 90%～130%;
B
2O
3Fluctuation range is calculated amount ± 5%;
The silica fluctuation range is calculated amount ± 3%;
The charcoal fluctuation range is calculated amount ± 6%;
The iron fluctuation range is calculated amount ± 2%.
Be example to produce the 100kg boron-silicon-Fe below, adopting scrap iron scrap stock, silica, refinery coke, wood chip is starting material, earlier boric acid is dehydrated into boron trioxide, and its ratio of components is as follows:
Enumerate several specific embodiments below:
Example 1
Production contains B3%, the boron-silicon-Fe of Si6%, and its materials proportioning (units):
Boron trioxide silica iron-stone oil coke wood chip
10 15 91 2 90
Example 2
Production contains B4%, the boron-silicon-Fe of Si21%, and its materials proportioning (units):
Boron trioxide silica iron-stone oil coke wood chip
14 50 75 22 90
Example 3
Production contains B5%, Si25%'s, the Fe27% boron-silicon-Fe, its materials proportioning (units):
Boron trioxide silica iron-stone oil coke wood chip
17 56 27 19 100
Example 4
Production contains B19%, Si40%, and the boron-silicon-Fe of Fe41%, its materials proportioning (units):
Boron trioxide silica iron-stone oil coke wood chip
67 92 41 50 110
Above-mentioned raw materials is mixed, drop in the hot stove in ore deposit and smelt, smelt and come out of the stove after 4 hours.Tapping temperature is controlled at about 1900 ℃, can produce corresponding qualified boron-silicon-Fe.Find out that from the foregoing description its raw-material gross weight surpasses 100kg, but contains other element in these materials, in smelting process, burnt the discharge of mistake and part bits and melt down.
Claims (5)
1. the smelting process of boron-silicon-Fe is characterized in that, comprising:
A, be body material with iron, boride, silica, with charcoal make reductive agent, carbohydrate is made raising agent, the composition of the boron-silicon-Fe of Sheng Chaning is as required determined the materials ratio of iron, boride and silica;
Temperature remains between 1900 ℃-2300 ℃ in B, the smelting furnace, and the reaction times is 3.5 hours-8 hours;
C, smelting process submerged arc method;
D, described smelting furnace are the hot stove in ore deposit, the granularity of described boride, silica, charcoal is less than 100mm, and its lower limit should guarantee the good ventilation property in the stove, and the size of iron and carbohydrate is determined according to the diameter of smelting furnace, can not cause built on stilts being as the criterion in the stove, below 30cm.
2. method according to claim 1 is characterized in that described iron uses any one in iron filings, scrap iron scrap stock, ferric oxide, the iron ore, perhaps their arbitrary combination.
3. method according to claim 1 and 2 is characterized in that described boride is any one in boron trioxide, borax, boric acid, the crude boron stone, perhaps their arbitrary combination.
4. method according to claim 3 is characterized in that described charcoal is any one in refinery coke, coke, the charcoal, perhaps their arbitrary combination.
5. method according to claim 4 is characterized in that described carbohydrate adopts sawdust, wooden unit, wood chip, material section, crop stalk make a fire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02117118 CN1212415C (en) | 2002-04-19 | 2002-04-19 | Method for smelting boron-silicon-Fe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02117118 CN1212415C (en) | 2002-04-19 | 2002-04-19 | Method for smelting boron-silicon-Fe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1451775A CN1451775A (en) | 2003-10-29 |
| CN1212415C true CN1212415C (en) | 2005-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02117118 Expired - Fee Related CN1212415C (en) | 2002-04-19 | 2002-04-19 | Method for smelting boron-silicon-Fe |
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| CN (1) | CN1212415C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105238990B (en) * | 2015-11-12 | 2017-11-10 | 中冶东方工程技术有限公司 | A kind of borosilicate ferroalloy and its production method |
-
2002
- 2002-04-19 CN CN 02117118 patent/CN1212415C/en not_active Expired - Fee Related
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| CN1451775A (en) | 2003-10-29 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANG XIAOSHU Free format text: FORMER OWNER: HONGWEI BORON ALLOY CO., LTD., DONGGANG CITY Effective date: 20080321 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080321 Address after: Liaoning province Dandong Kuandian Boron sea town Kuandian East magnesium chemical plant Patentee after: Jiang Xiaoshu Address before: Huangtukan town of Donggang city in Liaoning province Shengcun Kyrgyzstan Patentee before: Hongwei Boron Alloy Co., Ltd., Donggang City |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050727 Termination date: 20110419 |