CN114934194A - Process for carrying out nickel alloy vulcanization smelting by using oxygen cyclone rotary furnace - Google Patents
Process for carrying out nickel alloy vulcanization smelting by using oxygen cyclone rotary furnace Download PDFInfo
- Publication number
- CN114934194A CN114934194A CN202210608705.6A CN202210608705A CN114934194A CN 114934194 A CN114934194 A CN 114934194A CN 202210608705 A CN202210608705 A CN 202210608705A CN 114934194 A CN114934194 A CN 114934194A
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- China
- Prior art keywords
- furnace
- oxygen
- spray gun
- smelting
- baking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000001301 oxygen Substances 0.000 title claims abstract description 46
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 46
- 238000003723 Smelting Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910000990 Ni alloy Inorganic materials 0.000 title claims abstract description 9
- 238000004073 vulcanization Methods 0.000 title abstract description 9
- 239000007921 spray Substances 0.000 claims abstract description 36
- 239000002893 slag Substances 0.000 claims abstract description 19
- 238000007664 blowing Methods 0.000 claims abstract description 14
- 239000000155 melt Substances 0.000 claims abstract description 13
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000460 chlorine Substances 0.000 claims abstract description 12
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000000571 coke Substances 0.000 claims abstract description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000002386 leaching Methods 0.000 claims abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 6
- 239000011593 sulfur Substances 0.000 claims abstract description 6
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 4
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 4
- 239000004571 lime Substances 0.000 claims abstract description 4
- 239000010453 quartz Substances 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002023 wood Substances 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims abstract description 3
- 238000005266 casting Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000011343 solid material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005486 sulfidation Methods 0.000 claims 1
- 239000000446 fuel Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000011449 brick Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
- C22B23/025—Obtaining nickel or cobalt by dry processes with formation of a matte or by matte refining or converting into nickel or cobalt, e.g. by the Oxford process
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a nickel alloy vulcanization smelting process by using an oxygen rotary converter, wherein smelting equipment comprises a rotary converter, a spray gun, an oxygen spray gun, a tilting and rotating mechanism and a feeding device; the smelting process comprises the following steps: 1) baking the laid converter to 400-500 ℃ by using wood; 2) continuously baking the furnace temperature to 500-800 ℃ by using coke and high-pressure air; 3) adding coke into the furnace, placing the spray gun into the furnace at a position 2 m away from the bottom of the furnace, and continuously baking to 800-1000 ℃ by using oxygen; 4) baking with oil and oxygen of a spray gun, baking the furnace to a smelting temperature of 1200 ℃, and adding slag to melt; 5) pressing raw materials of hot chlorine slag and chlorine leaching slag into 40mm briquettes, adding the briquettes, quartz and lime into a furnace, placing a spray gun at a position 1000-1500 mm away from a material surface, melting by using oil and oxygen, and rotating a furnace body at a speed of 3.5-4.5 r/min; when the sulfur content of the melt in the furnace reaches 15%, blowing is stopped, the furnace mouth is tilted to a position of-45 ℃, and the melt in the furnace is discharged into a ladle from the furnace mouth.
Description
Technical Field
The invention belongs to the technical field of metallurgy, and particularly relates to a process for carrying out nickel alloy vulcanization smelting by using an oxygen cyclone rotary furnace.
Background
The alloy vulcanization is a process of generating metal sulfide by nickel or copper and other metals and sulfur-containing materials under a high-temperature condition, a reverberatory furnace or a rotary anode furnace is commonly used for the current alloy vulcanization of copper, nickel and other valuable metals, and the problems of poor environmental condition, high fuel consumption, furnace accretion adhesion in the furnace, high labor intensity and the like exist in the alloy vulcanization process of the smelting processes. In order to improve the field environment, improve the labor productivity and reduce the fuel consumption, a new nickel alloy sulfurization smelting process needs to be researched and invented.
Disclosure of Invention
The invention provides a nickel alloy vulcanization smelting process by using an oxygen cyclone rotary converter, and aims to solve the problems of poor environmental conditions, high fuel consumption, furnace accretion bonding in a furnace and high labor intensity in the conventional alloy vulcanization process.
Therefore, the invention adopts the following technical scheme:
a nickel alloy sulfuration smelting process by an oxygen cyclone rotary furnace, wherein smelting equipment comprises a rotary furnace, a spray gun, an oxygen spray gun, a tilting and rotating mechanism and a feeding device;
the smelting process comprises the following steps:
1) baking the laid converter to 400-500 ℃ by using wood;
2) continuously baking the furnace to 500-800 ℃ by using coke and high-pressure air;
3) adding coke into the furnace, putting the spray gun into the position 2 m away from the bottom of the furnace, and continuously baking to 800-1000 ℃ by using oxygen;
4) baking with oil and oxygen of a spray gun, baking the furnace to a smelting temperature of 1200 ℃, and adding slag to melt;
5) pressing raw materials of hot chlorine slag and chlorine leaching slag into 40mm briquettes, adding the briquettes, quartz and lime into a furnace, placing a spray gun at a position 1000-1500 mm away from a material surface, melting by using oil and oxygen, and rotating a furnace body at a speed of 3.5-4.5 r/min;
after the solid materials in the furnace are completely melted, placing an oxygen spray gun at a position 2000-2500 mm away from the material surface, only blowing by using the oxygen spray gun, pouring floating slag on the inner surface of the furnace after the blowing is finished, and continuing blowing; and when the sulfur content of the melt in the furnace reaches 15%, stopping blowing, lifting an oxygen spray gun out of the furnace, tilting a furnace mouth to a position of-45 ℃, discharging the melt in the furnace into a ladle from the furnace mouth, and hoisting the melt to a casting area by using a crane for casting.
Further, the concentration of the oxygen is more than 90%, and the air pressure is more than 0.9 MPa.
Further, the spray gun and the oxygen spray gun are both cooled by water.
Furthermore, the rotary converter is a cylindrical furnace, and the furnace body shell is formed by rolling 20g of boiler steel plates.
Furthermore, the granularity of the raw materials of the hot chlorine slag and the chlorine leaching slag is 10 mm-40 mm.
In the invention, raw materials such as hot sulfur-containing chlorine slag, chlorine leaching slag and the like are pressed into briquettes with the granularity of about 40mm, and then the briquettes are mixed with quartz and lime according to the proportion and the mixture proportion is mixed according to the conventional production method; the oil of the spray gun adopts heavy oil.
The invention has the beneficial effects that: 1) smelting and blowing by oxygen; 2) oxygen and fuel are blown into the furnace through a water-cooled spray gun, and the included angle between the center of the oxygen spray gun and the furnace body and the horizontal plane is 28 degrees; 3) smelting and blowing processes are carried out in a rotary converter built by refractory materials, and the furnace body can rotate clockwise around a central angle of 28 degrees from a horizontal plane and can also tilt along the direction of a longitudinal axis; 4) the lance is located above the melt level (the melt is in a quiescent condition) and is not immersed in the melt; 5) the material added into the furnace is particle material or block material pressed into lumps; 5) the production process comprises the processes of feeding, melting, converting and slagging, and discharging from a furnace and casting, and the whole process is carried out discontinuously. Because oxygen is used for smelting, the reaction process is very quick, SO the process has strong raw material adaptability, high unit smelting strength, small flue gas amount and SO 2 High concentration, small occupied area of equipment and less investment.
Detailed Description
The invention is further illustrated by the following specific examples:
the smelting equipment comprises a rotary converter, a spray gun, an oxygen spray gun, a tilting and rotating mechanism and a feeding device;
the rotary converter is a cylindrical barrel and is main process equipment for finishing a smelting reaction process, a shell of a furnace body is formed by rolling 20g of boiler steel plates, chrome magnesia bricks are built in the furnace body, and asbestos plates with the thickness of 20mm are filled between the chrome magnesia bricks and the shell for heat insulation; at the bottom of the furnace body, in order to prevent the brick at the bottom of the furnace from floating, the bottom of the furnace is built into a 2-layer inverted arch shape. The upper end of the furnace body is provided with a furnace cap, the furnace cap is connected with the furnace body through a flange, and the top point of the furnace cap is a furnace opening for charging and discharging. The furnace body is vertically upward when charging, forms an angle of 28 degrees with the horizontal plane when performing blowing operation, and forms an angle of-45 degrees downward when the furnace body needs tapping operation.
A tilting and rotating mechanism, namely a hydraulic motor is arranged at the bottom of the furnace body and used for driving the furnace body to rotate clockwise, and the center of the furnace body and the horizontal plane form 28 degrees in normal operation; the tilting device is arranged at the waist part of the furnace body, so that the whole furnace body tilts, and the charging and discharging from the furnace mouth are convenient.
The spray gun-spray gun is a cylindrical multi-layer cylinder structure, the center of the spray gun is a fuel pipe, the outside of the fuel pipe is an oxygen pipe for supplying oxygen, the outside of the oxygen pipe is provided with a cooling water inlet pipe and a cooling water outlet pipe in sequence, and the spray gun is hung on an oxygen gun rack. The oxygen lance gun can ascend or descend on a slide way of the oxygen lance frame.
The fixed smoke hood is used for cooling and reducing the temperature of smoke gas, so that the smoke gas generated by the furnace body is guided into the water-cooling flue. Meanwhile, the oxygen lance is used for sealing a furnace mouth in the ascending and descending processes to prevent the flue gas from leaking.
The charging device is used for charging raw materials into a hopper car, then the raw materials are lifted to the top of the furnace through a hoisting machine, and the raw materials are poured into a charging hopper of the converter and poured into the converter.
The smelting process comprises the following steps: 1) baking the laid converter to 400-500 ℃ by using wood; 2) Continuously baking the furnace to 500-800 ℃ by using coke and high-pressure air; 3) Adding coke into the furnace, putting a spray gun into the position 2 m away from the bottom of the furnace, and continuously baking the converter to 800-1000 ℃ by using oxygen; 4) baking with oil and oxygen of a spray gun, baking the furnace to a smelting temperature of 1200 ℃, and adding slag to melt; 5) adding raw materials, putting the raw materials at a position 2000-2500 mm away from a material surface by using an oil and oxygen spray gun for melting, rotating a furnace body at a speed of 3.5-4.5 revolutions per minute, after solid materials in the furnace are completely melted, simply putting the oxygen spray gun at a position 2000-2500 mm away from the material surface for blowing, pouring floating slag on the inner surface of the furnace after the blowing is finished, continuing to blow, and when the sulfur content of a melt in the furnace reaches 15%, beginning to discharge the melt from a furnace opening into a steel ladle.
Claims (5)
1. A nickel alloy sulfurizing smelting process using oxygen cyclone rotary furnace is characterized in that the smelting equipment comprises a rotary furnace, a spray gun, an oxygen spray gun, a tilting and rotating mechanism and a charging device;
the smelting process comprises the following steps:
1) baking the laid converter to 400-500 ℃ by using wood;
2) continuously baking the furnace to 500-800 ℃ by using coke and high-pressure air;
3) adding coke into the furnace, putting the spray gun into the position 2 m away from the bottom of the furnace, and continuously baking to 800-1000 ℃ by using oxygen;
4) baking with oil and oxygen of a spray gun, baking the furnace to a smelting temperature of 1200 ℃, and adding slag to melt;
5) pressing raw materials of hot chlorine slag and chlorine leaching slag into 40mm briquettes, adding the briquettes, quartz and lime into a furnace, placing a spray gun at a position 1000-1500 mm away from a material surface, melting by using oil and oxygen, and rotating a furnace body at a speed of 3.5-4.5 r/min;
after the solid materials in the furnace are completely melted, placing an oxygen spray gun at a position 2000-2500 mm away from the material surface, only blowing by using the oxygen spray gun, pouring floating slag on the inner surface of the furnace after the blowing is finished, and continuing blowing; and when the sulfur content of the melt in the furnace reaches 15%, stopping blowing, lifting an oxygen spray gun out of the furnace, tilting a furnace mouth to a position of-45 ℃, discharging the melt in the furnace into a ladle from the furnace mouth, and hoisting the melt to a casting area by using a crane for casting.
2. The process of claim 1, wherein the oxygen concentration is greater than 90% and the pressure is greater than 0.9 Mpa.
3. The process of claim 1, wherein the lance and the oxygen lance are both water cooled.
4. The process of claim 1, wherein the rotary converter is a cylindrical furnace, and the furnace body shell is made of 20g of boiler steel plate by rolling.
5. The process for carrying out nickel alloy sulfidation smelting by using the oxygen cyclone rotary furnace as claimed in claim 1, wherein the particle size of the raw materials of the hot chlorine slag and the chlorine leaching slag is 10 mm-40 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210608705.6A CN114934194A (en) | 2022-05-31 | 2022-05-31 | Process for carrying out nickel alloy vulcanization smelting by using oxygen cyclone rotary furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210608705.6A CN114934194A (en) | 2022-05-31 | 2022-05-31 | Process for carrying out nickel alloy vulcanization smelting by using oxygen cyclone rotary furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114934194A true CN114934194A (en) | 2022-08-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210608705.6A Pending CN114934194A (en) | 2022-05-31 | 2022-05-31 | Process for carrying out nickel alloy vulcanization smelting by using oxygen cyclone rotary furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114934194A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02236235A (en) * | 1989-03-09 | 1990-09-19 | Nkk Corp | Smelt reduction method of ni ore and smelting furnace thereof |
| CN102719591A (en) * | 2011-03-30 | 2012-10-10 | 鞍钢股份有限公司 | Multi-step furnace baking method for converter |
| CN104018006A (en) * | 2013-02-28 | 2014-09-03 | 中国恩菲工程技术有限公司 | Nickel matte bottom-blowing refining process and nickel matte bottom-blowing refining furnace |
| CN104988334A (en) * | 2015-07-30 | 2015-10-21 | 长沙有色冶金设计研究院有限公司 | Method for smelting blister copper from copper sulfide concentrate |
| CN106123574A (en) * | 2016-06-28 | 2016-11-16 | 阳谷祥光铜业有限公司 | A kind of oxygen blow converter and a kind of smelting process |
-
2022
- 2022-05-31 CN CN202210608705.6A patent/CN114934194A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02236235A (en) * | 1989-03-09 | 1990-09-19 | Nkk Corp | Smelt reduction method of ni ore and smelting furnace thereof |
| CN102719591A (en) * | 2011-03-30 | 2012-10-10 | 鞍钢股份有限公司 | Multi-step furnace baking method for converter |
| CN104018006A (en) * | 2013-02-28 | 2014-09-03 | 中国恩菲工程技术有限公司 | Nickel matte bottom-blowing refining process and nickel matte bottom-blowing refining furnace |
| CN104988334A (en) * | 2015-07-30 | 2015-10-21 | 长沙有色冶金设计研究院有限公司 | Method for smelting blister copper from copper sulfide concentrate |
| CN106123574A (en) * | 2016-06-28 | 2016-11-16 | 阳谷祥光铜业有限公司 | A kind of oxygen blow converter and a kind of smelting process |
Non-Patent Citations (1)
| Title |
|---|
| 金川有色金属公司: "《倾斜式旋转炉氧气吹炼制取粗镍》", 《有色金属（冶炼部分）》 * |
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| PB01 | Publication | ||
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Application publication date: 20220823 |
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| RJ01 | Rejection of invention patent application after publication |