CN1847421A - Method for producing nickel-chromium pellet by using nickel-chromium industrial waste - Google Patents
Method for producing nickel-chromium pellet by using nickel-chromium industrial waste Download PDFInfo
- Publication number
- CN1847421A CN1847421A CN 200610039993 CN200610039993A CN1847421A CN 1847421 A CN1847421 A CN 1847421A CN 200610039993 CN200610039993 CN 200610039993 CN 200610039993 A CN200610039993 A CN 200610039993A CN 1847421 A CN1847421 A CN 1847421A
- Authority
- CN
- China
- Prior art keywords
- nickel
- chromium triangle
- nickel chromium
- trade waste
- chromium
- 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.)
- Pending
Links
- 229910018487 Ni—Cr Inorganic materials 0.000 title claims abstract description 50
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000008188 pellet Substances 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 239000002440 industrial waste Substances 0.000 title abstract 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 15
- 239000011651 chromium Substances 0.000 claims abstract description 15
- 239000000654 additive Substances 0.000 claims abstract description 14
- 230000000996 additive effect Effects 0.000 claims abstract description 14
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000005245 sintering Methods 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 239000002699 waste material Substances 0.000 claims description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 13
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 11
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 11
- 239000005864 Sulphur Substances 0.000 claims description 11
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 11
- 239000000292 calcium oxide Substances 0.000 claims description 11
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 11
- 239000000395 magnesium oxide Substances 0.000 claims description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 11
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 11
- 229910052748 manganese Inorganic materials 0.000 claims description 11
- 239000011572 manganese Substances 0.000 claims description 11
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 11
- 239000011574 phosphorus Substances 0.000 claims description 11
- 229910052698 phosphorus Inorganic materials 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- 229960001866 silicon dioxide Drugs 0.000 claims description 11
- 235000012239 silicon dioxide Nutrition 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000009628 steelmaking Methods 0.000 claims description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 5
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract 2
- 238000005453 pelletization Methods 0.000 abstract 2
- 238000012216 screening Methods 0.000 abstract 2
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 1
- BIJOYKCOMBZXAE-UHFFFAOYSA-N chromium iron nickel Chemical compound [Cr].[Fe].[Ni] BIJOYKCOMBZXAE-UHFFFAOYSA-N 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 229910001120 nichrome Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A method for producing nickel-chromium pellets by using nickel-chromium industrial waste comprises the following steps: feeding the industrial waste of nickel and chromium and the additive into a mixer together, uniformly mixing, and feeding the mixture onto a pelletizer for pelletizing; screening the product obtained on the pelletizer to obtain green pellets and pelletizing return materials, sending the green pellets to a pellet shaft furnace, baking the green pellets at the high temperature of 1100-1300 ℃, and screening the baked product to obtain nickel-chromium pellets and sintering return materials; wherein the weight ratio of the nickel-chromium industrial waste to the additive is as follows: 100: 0.5-1.2. The invention uses industrial waste of nickel and chromium to produce nickel-chromium pellet with natural alkalinity, and uses the nickel-chromium pellet as raw material for smelting nickel-chromium-iron alloy in blast furnace, which is a good method for realizing recycling of industrial waste.
Description
Technical field
The invention belongs to the raw material technical field of blast-furnace smelting nichrome, relate to the method for producing the Ni and Cr contained pellet with the trade waste of Ni and Cr contained particularly.
Background technology
Up to now, discard nickel chromium triangle trade wastes such as tailings behind dedusting ash that the granularity that stainless steel smelting process produces is superfine and the wet extraction nickel, because of utilizing a large amount of discarded severe contaminations that cause environment.And valuable nickel chromium triangle resource also goes out of use and is not used.
Summary of the invention
The object of the invention provides a kind of method of utilizing the nickel chromium triangle trade waste to produce the nickel chromium triangle pellet, and described nickel chromium triangle pellet will be as the raw material of blast-furnace smelting nichrome.
The present invention is implemented by the following technical programs, a kind of method of utilizing the nickel chromium triangle trade waste to produce the nickel chromium triangle pellet, and it comprises the steps: nickel chromium triangle trade waste and additive together sent into to send into after mixing machine mixes to make ball on the pelletizer; The product that obtains on the pelletizer sieved obtain green pellets and make the ball returning charge, described green pellets is sent to palletizing shaft furnace, and green pellets is burnt in baking under 1100-1300 ℃ of high temperature, the product after baking is burnt sieves nickel chromium triangle pellet and the sintering returning charge that obtains; The weight ratio of wherein said nickel chromium triangle trade waste and additive is: 100: 0.5~1.2.
Described nickel chromium triangle trade waste is the stainless steel roll scale, carry the nickel tailings, at least a or two above mixtures in the stainless steel steel-making dedusting ash.
Described nickel chromium triangle trade waste is a mixture of putting forward nickel tailings and stainless steel steel-making dedusting ash, and its weight ratio is: 1: 1; The weight content that mixes following each composition in back is: iron: 42%; Iron protoxide: 5.0%; Sulphur: 0.06%; Phosphorus: 0.047%; Manganese: 0.57%; Silicon-dioxide: 7.0%; Calcium oxide: 5.8%; Magnesium oxide: 4.4%; Nickel: 1.04%; Chromium: 8.2%; Aluminum oxide: 4.45%; Water: 20%.
The composition weight content of described stainless steel roll scale is: iron: 54%; Ferric oxide: 2.57%; Sulphur: 0.064%; Phosphorus: 0.028%; Manganese: 3.08%; Silicon-dioxide: 4.43%; Calcium oxide: 1.70%; Magnesium oxide: 0.76%; Nickel: 0.82%; Chromium: 7.74%; Aluminum oxide: 0.8%; Water: 3~5%;
The described composition weight content of carrying the nickel tailings is: iron: 46~50%; Sulphur: 0.02%; Phosphorus: 0.07%; Manganese: 0.8%; Silicon-dioxide: 8~10%; Calcium oxide: 0.1%; Magnesium oxide: 5~6%; Nickel: 0.29~0.35%; Chromium: 2.5~3.2%; Aluminum oxide: 6~7%; Water: 20%;
Described stainless steel steel-making dedusting ash composition weight content is: iron: 34.05%; Ferric oxide: 9.82%; Sulphur 0.095%; Phosphorus: 0.023%; Manganese: 0.34%; Silicon-dioxide: 5.05%; Calcium oxide: 11.50%; Magnesium oxide: 3.24%; Nickel: 1.74%; Chromium: 13.58%; Aluminum oxide: 2.39%; Water: 20%.
Describedly make the ball returning charge and described nickel chromium triangle trade waste, additive after mixing on the mixing machine together sent into pelletizer as the raw material of making ball next time.
With described sintering returning charge levigate after, together send into mixing machine as next raw materials mixed with described nickel chromium triangle trade waste, additive.
Described additive is a wilkinite.
The present invention compared with prior art has following advantage: the present invention produces the nickel chromium triangle pellet of natural alkalinity with the nickel chromium triangle trade waste, and the nickel chromium triangle pellet is used as the raw material of blast-furnace smelting nichrome, be the good method that realizes the trade waste cycling and reutilization.
Embodiment
Embodiment 1:
At first with the stainless steel steel-making dedusting ash of granularity below 200 orders, to carry nickel tailings and wilkinite be that 50: 50: 0.8 ratio is prepared burden by weight.
The described composition weight content of carrying the nickel tailings is: iron: 46~50%; Sulphur: 0.02%; Phosphorus: 0.07%; Manganese: 0.8%; Silicon-dioxide: 8~10%; Calcium oxide: 0.1%; Magnesium oxide: 5~6%; Nickel: 0.29~0.35%; Chromium: 2.5~3.2%; Aluminum oxide: 6~7%; Water: 20%;
Described stainless steel steel-making dedusting ash composition weight content is: iron: 34.05%; Ferric oxide: 9.82%; Sulphur 0.095%; Phosphorus: 0.023%; Manganese: 0.34%; Silicon-dioxide: 5.05%; Calcium oxide: 11.50%; Magnesium oxide: 3.24%; Nickel: 1.74%; Chromium: 13.58%; Aluminum oxide: 2.39%; Water: 20%.
The weight content that following each composition in back is mixed in the batching back is: iron: 42%; Iron protoxide: 5.0%; Sulphur: 0.06%; Phosphorus: 0.047%; Manganese: 0.57%; Silicon-dioxide: 7.0%; Calcium oxide: 5.8%; Magnesium oxide: 4.4%; Nickel: 1.04%; Chromium: 8.2%; Aluminum oxide: 4.45%; Water: 20%.
Then it is sent into mixing machine and mix, send into after mixing and make ball on the pelletizer; The product that obtains on the pelletizer sieved obtain green pellets and make the ball returning charge, described green pellets is sent to common 4m
2Or 8m
2In the palletizing shaft furnace and will make ball returning charge foldback and return pelletizer and carry out secondary and make ball, green pellets is burnt in baking under 1200 ℃ of high temperature, product is burnt in baking sieve pellet and the sintering returning charge that obtains natural alkalinity about 0.8, the sintering returning charge is levigate, and foldback returns and carries out secondary in the mixing machine and mix, and promptly finishes whole technology.
Describedly make the ball returning charge and described nickel chromium triangle trade waste, additive after mixing on the mixing machine together sent into pelletizer as the raw material of making ball next time.
With described sintering returning charge levigate after, together send into mixing machine as next raw materials mixed with described nickel chromium triangle trade waste, additive.
Claims (7)
1, a kind of method of utilizing the nickel chromium triangle trade waste to produce the nickel chromium triangle pellet is characterized in that: it comprises the steps: nickel chromium triangle trade waste and additive together sent into to send into after mixing machine mixes to make ball on the pelletizer; The product that obtains on the pelletizer sieved obtain green pellets and make the ball returning charge, described green pellets is sent to palletizing shaft furnace, and green pellets is burnt in baking under 1100-1300 ℃ of high temperature, the product after baking is burnt sieves nickel chromium triangle pellet and the sintering returning charge that obtains; The weight ratio of wherein said nickel chromium triangle trade waste and additive is: 100: 0.5~1.2.
2, the method for utilizing the nickel chromium triangle trade waste to produce the nickel chromium triangle pellet according to claim 1 is characterized in that: described nickel chromium triangle trade waste is the stainless steel roll scale, carry at least a or two above mixtures in nickel tailings, the stainless steel steel-making dedusting ash.
3, the method for utilizing the nickel chromium triangle trade waste to produce the nickel chromium triangle pellet according to claim 2 is characterized in that: described nickel chromium triangle trade waste is a mixture of putting forward nickel tailings and stainless steel steel-making dedusting ash, and its weight ratio is: 1: 1; The weight content that mixes following each composition in back is: iron: 42%; Iron protoxide: 5.0%; Sulphur: 0.06%; Phosphorus: 0.047%; Manganese: 0.57%; Silicon-dioxide: 7.0%; Calcium oxide: 5.8%; Magnesium oxide: 4.4%; Nickel: 1.04%; Chromium: 8.2%; Aluminum oxide: 4.45%; Water: 20%.
4, the method for utilizing the nickel chromium triangle trade waste to produce the nickel chromium triangle pellet according to claim 2, it is characterized in that: the composition weight content of described stainless steel roll scale is: iron: 54%; Ferric oxide: 2.57%; Sulphur: 0.064%; Phosphorus: 0.028%; Manganese: 3.08%; Silicon-dioxide: 4.43%; Calcium oxide: 1.70%; Magnesium oxide: 0.76%; Nickel: 0.82%; Chromium: 7.74%; Aluminum oxide: 0.8%; Water: 3~5%;
The described composition weight content of carrying the nickel tailings is: iron: 46~50%; Sulphur: 0.02%; Phosphorus: 0.07%; Manganese: 0.8%;
Silicon-dioxide: 8~10%; Calcium oxide: 0.1%; Magnesium oxide: 5~6%; Nickel: 0.29~0.35%; Chromium: 2.5~3.2%; Aluminum oxide: 6~7%; Water: 20%;
Described stainless steel steel-making dedusting ash composition weight content is: iron: 34.05%; Ferric oxide: 9.82%; Sulphur 0.095%; Phosphorus: 0.023%; Manganese: 0.34%; Silicon-dioxide: 5.05%; Calcium oxide: 11.50%; Magnesium oxide: 3.24%; Nickel: 1.74%; Chromium: 13.58%; Aluminum oxide: 2.39%; Water: 20%.
5, the method for utilizing the nickel chromium triangle trade waste to produce the nickel chromium triangle pellet according to claim 1 is characterized in that: describedly make the ball returning charge and described nickel chromium triangle trade waste, additive after mixing on the mixing machine together sent into pelletizer as the raw material of making ball next time.
6, the method for utilizing the nickel chromium triangle trade waste to produce the nickel chromium triangle pellet according to claim 1, it is characterized in that: with described sintering returning charge levigate after, together send into mixing machine as next raw materials mixed with described nickel chromium triangle trade waste, additive.
7, the method for utilizing the nickel chromium triangle trade waste to produce the nickel chromium triangle pellet according to claim 1, it is characterized in that: described additive is a wilkinite.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 200610039993 CN1847421A (en) | 2006-04-25 | 2006-04-25 | Method for producing nickel-chromium pellet by using nickel-chromium industrial waste |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 200610039993 CN1847421A (en) | 2006-04-25 | 2006-04-25 | Method for producing nickel-chromium pellet by using nickel-chromium industrial waste |
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CN1847421A true CN1847421A (en) | 2006-10-18 |
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CN 200610039993 Pending CN1847421A (en) | 2006-04-25 | 2006-04-25 | Method for producing nickel-chromium pellet by using nickel-chromium industrial waste |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101392331B (en) * | 2008-10-10 | 2010-08-25 | 建德市新安江镍合金有限公司 | Smelting technique for processing nickel ore by rotary kiln |
CN105349801A (en) * | 2015-10-10 | 2016-02-24 | 中国钢研科技集团有限公司 | Method for chromium slag co-processing by means of smelting of laterite-nickel ores through ore-smelting electric furnace |
CN106755981A (en) * | 2016-11-25 | 2017-05-31 | 江苏省沙钢钢铁研究院有限公司 | A kind of method that utilization iron ore mine produces metallized pellet |
CN107236861A (en) * | 2017-05-08 | 2017-10-10 | 浙江特力再生资源有限公司 | A kind of method that utilization industrial residue produces stainless steel smelting sintering deposit |
-
2006
- 2006-04-25 CN CN 200610039993 patent/CN1847421A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101392331B (en) * | 2008-10-10 | 2010-08-25 | 建德市新安江镍合金有限公司 | Smelting technique for processing nickel ore by rotary kiln |
CN105349801A (en) * | 2015-10-10 | 2016-02-24 | 中国钢研科技集团有限公司 | Method for chromium slag co-processing by means of smelting of laterite-nickel ores through ore-smelting electric furnace |
CN105349801B (en) * | 2015-10-10 | 2017-09-29 | 中国钢研科技集团有限公司 | A kind of method that chromium slag is put in ore-smelting electric furnace smelting red clay nickel ore coexistence |
CN106755981A (en) * | 2016-11-25 | 2017-05-31 | 江苏省沙钢钢铁研究院有限公司 | A kind of method that utilization iron ore mine produces metallized pellet |
CN106755981B (en) * | 2016-11-25 | 2019-07-19 | 江苏省沙钢钢铁研究院有限公司 | A method of metallized pellet is produced using iron ore mine |
CN107236861A (en) * | 2017-05-08 | 2017-10-10 | 浙江特力再生资源有限公司 | A kind of method that utilization industrial residue produces stainless steel smelting sintering deposit |
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