CN105986140A - Method and apparatus for producing vanadium nitrogen alloy by using ammonium metavanadate - Google Patents
Method and apparatus for producing vanadium nitrogen alloy by using ammonium metavanadate Download PDFInfo
- Publication number
- CN105986140A CN105986140A CN201510047431.8A CN201510047431A CN105986140A CN 105986140 A CN105986140 A CN 105986140A CN 201510047431 A CN201510047431 A CN 201510047431A CN 105986140 A CN105986140 A CN 105986140A
- Authority
- CN
- China
- Prior art keywords
- kiln
- push
- ammonium metavanadate
- equipment
- plate type
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Catalysts (AREA)
Abstract
The invention relates to a method and an apparatus for producing a vanadium nitrogen alloy by using ammonium metavanadate. The method is characterized in that ammonium metavanadate is taken as a raw material, a nitrogen protected push-plate kiln is employed for producing a vanadium nitrogen alloy product, and the nitrogen protected push-plate kiln used for directly producing the vanadium nitrogen alloy has the advantage of simple process. The apparatus comprises a grinder, the grinder is connected with a wheel roller-type mixing blender, a hydraulic ball press machine and a graphite crucible in order, the graphite crucible is connected with a push-plate drying kiln through a feeder, the graphite crucible is sent to the push-plate kiln by the feeder, and the push-plate drying kiln is connected with the push-plate kiln. According to the invention, the intermediate reaction equipment is less, the reaction temperature is low, energy is saved, production cost is reduced, continuous production is realized, and the method is suitable for large-scale industrial production.
Description
Technical field
The present invention relates to a kind of VN alloy production Technology and method, a kind of system using ammonium metavanadate to produce vanadium-nitrogen alloy product, belong to VN alloy and produce apparatus field.
Background technology
Vanadium is high intensity, low-alloy steel, micro alloyed steel and the requisite primary raw material of other special steels.Vanadium can improve the intensity of steel, toughness, wearability and capacity of resisting impact load.For many years, steel industry is many puts into steel-making use with FeV50, and its production cost is high, impurity is big, and the difficult quality of steel reaches higher requirement.The appearance of VN alloy, not only compensate for the weak point of vanadium iron FeV, further increase performance and the quality of steel, reduce the product cost of steel, and nitrogen in vanadium-nitrogen alloy element is an advantageous elements in steel-making, it can interact with steel, and by increasing the nitrogen content in steel, the strengthening effect of vanadium is improved.Simultaneously, rich in nitrogen in VN alloy, it is more beneficial for promoting the rich carbon of nitrogen, the precipitation of vanadium nitride than vanadium carbide, thus more effectively strengthen and crystal grain thinning, save vanadium raw materials, using VN alloy can save vanadium 20-40% compared with vanadium iron FeV, this has great strategic importance to the vanadium resource effectively utilizing China limited.But, the most traditional VN alloy production system constitutes complexity, and middle reflection equipment investment is big, and reaction temperature is high, and energy-output ratio is big, and production cost is high.
Summary of the invention
In order to solve the problems referred to above, the present invention devises a kind of method using ammonium metavanadate to produce VN alloy and equipment thereof, and middle reflection equipment investment is few, and reaction temperature is low, saves the energy, reduces production cost, can produce continuously, is suitable for large-scale industrial production.
The technical scheme is that
A kind of method using ammonium metavanadate to produce VN alloy, comprises the following steps:
(1) first ammonium metavanadate is ground to more than 180 mesh by grinder, then material is joined in mixing and blending machine by the proportioning that ammonium metavanadate, graphite, iron powder weight ratio are 1 0.30 0.10, be stirred mixing to 40min；
(2) in the mixing and blending machine of step (1), 3% ammonium sulfate of heavy amount, 5% poly (vinyl alcohol) binder, 8.5% water are added again, uniform stirring 30min, by material input hydraulic pressure ball press after stirring, hydraulic pressure ball press is utilized to be pressed into 35 × 35mm oval-shaped ball, reinstall graphite crucible, being sent in push-plate type drying kiln by feeder, in push-plate type drying kiln, heating-up temperature is to 200～250 DEG C, carries out 150min drying and is divided into 0.05-0.10% to material is aqueous；
(3) being then fed in pushed bat kiln, the interior initial temperature that sets of pushed bat kiln is as 450 DEG C, and nitrogen pressure set is+5～10MPa.Now, the burner at gas discharge outlet that carbon monoxide and basic anhydride are arranged by kiln body upper port, after under the effect of air, CO burning completes, discharged from exhaustor by exhaust blower.The waste gas discharged for making ammonium metavanadate decompose can be discharged smoothly, is provided with pressure exhaust blower at exhaustor.In guarantee kiln in the case of pressure-fired, reaction is passed through about flow 2.5m per minute at the very start3The nitrogen of/min.Now, material starts carburizing reagent, and the carburizing reagent time is 270min, subsequently temperature being gradually increased to 800～1450 DEG C, make material gradually carry out nitridation reaction, the nitridation reaction time is 210min, then by rapid cooling measure, treat that material is cooled to less than 70 DEG C, get final product kiln discharge.
A kind of with the equipment stated and use ammonium metavanadate to produce VN alloy method waterborne, including grinder, described grinder is connected with rolling wheel mixing and blending machine, hydraulic pressure ball press and graphite crucible successively, described graphite crucible is connected with push-plate type drying kiln by feeder, graphite crucible is sent in push-plate type drying kiln by feeder, and described push-plate type drying kiln is connected with pushed bat kiln.
Further, described grinder is ammonium metavanadate materials abrasive machine, and grind size is more than 180 mesh.
Further, described hydraulic pressure ball press is 10MPa hydraulic press.
Further, the heating-up temperature in described push-plate type drying kiln stabilizes to 200～250 DEG C.
Further, the kiln body upper port of described pushed bat kiln is provided with gas discharge outlet, is provided with burner at described gas discharge outlet, and for carbon monoxide and the abundant burning of basic anhydride, under the effect of air, CO burning is complete.
Further, described gas discharge outlet is connected with exhaustor by exhaust blower, and the fully gas after burning is discharged by exhaustor.
Further, the interior initial temperature that sets of described pushed bat kiln is as 450 DEG C, and nitrogen pressure set is 5～10MPa.
Further, being passed through flow per minute in described pushed bat kiln is 2.5m3The nitrogen of/min.
During work, use the vanadium-nitrogen alloy product of present device output can reach V=80, N=18, C=4.2, Si=0.036, P=0.017, S=0.023, Ai=0.012, density are 3.62～4.21g/cm3。
It is an advantage of the current invention that:
(1) apparatus and process flow process is simple, and production capacity is big, and equipment operation is stable；
(2) can make full use of the energy, pressure-fired behaviour do, and good leak tightness escapes without dust, flue gas etc.；
(3) Roasting Decomposition is rapid, can continuous automatic production.
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the equipment connection diagram of the embodiment of the present invention.
Detailed description of the invention
Hereinafter the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention.
Embodiment 1
A kind of method using ammonium metavanadate to produce VN alloy, comprises the following steps:
(1) first the content high-purity ammonium metavanadate more than 99% is ground to more than 180 mesh by grinder, then material is joined in mixing and blending machine by the proportioning that ammonium metavanadate, graphite, iron powder weight ratio are 1 0.30 0.10, be stirred mixing to 40min；
(2) in the mixing and blending machine of step (1), 3% ammonium sulfate of heavy amount, 5% poly (vinyl alcohol) binder, 8.5% water are added again, uniform stirring 30min, by material input hydraulic pressure ball press after stirring, hydraulic pressure ball press is utilized to be pressed into 35 × 35mm oval-shaped ball, reinstall graphite crucible, being sent in push-plate type drying kiln by feeder, in push-plate type drying kiln, heating-up temperature is to 200～250 DEG C, carries out 150min drying and is divided into about 0.07% to material is aqueous；
(3) being then fed in pushed bat kiln, the interior initial temperature that sets of pushed bat kiln is as 450 DEG C, and nitrogen pressure set is+5～10MPa.Now, the burner at gas discharge outlet that carbon monoxide and basic anhydride are arranged by kiln body upper port, after under the effect of air, CO burning completes, discharged from exhaustor by exhaust blower.The waste gas discharged for making ammonium metavanadate decompose can be discharged smoothly, is provided with pressure exhaust blower at exhaustor.In guarantee kiln in the case of pressure-fired, reaction is passed through about flow 2.5m per minute at the very start3The nitrogen of/min.Now, material starts carburizing reagent, and the carburizing reagent time is 270min, subsequently temperature being gradually increased to 800～1450 DEG C, make material gradually carry out nitridation reaction, the nitridation reaction time is 210min, then by rapid cooling measure, treat that material is cooled to less than 70 DEG C, get final product kiln discharge.
Embodiment 2
As shown in Figure 1, a kind of method using ammonium metavanadate to produce VN alloy and equipment thereof, including grinder 1, described grinder 1 is connected with rolling wheel mixing and blending machine 2, hydraulic pressure ball press 3 and graphite crucible 4 successively, described graphite crucible 4 is connected with push-plate type drying kiln 6 by feeder 5, graphite crucible 4 is sent in push-plate type drying kiln 6 by feeder 5, and described push-plate type drying kiln 6 is connected with pushed bat kiln 7.Described grinder 1 is ammonium metavanadate materials abrasive machine, and grind size is more than 180 mesh；Heating-up temperature in described push-plate type drying kiln 6 stabilizes to 200～250 DEG C；The interior initial temperature that sets of described pushed bat kiln 7 is as 450 DEG C, and nitrogen pressure set is 5～10MPa；Being passed through flow per minute in described pushed bat kiln 7 is 2.5m3The nitrogen of/min；Described mixing and blending machine is rolling wheel mixing and blending machine.The kiln body upper port of described pushed bat kiln 7 is provided with gas discharge outlet 8, it is provided with burner 9 at described gas discharge outlet 8, for carbon monoxide and the abundant burning of basic anhydride, under the effect of air, CO burning is complete, described gas discharge outlet 8 is connected with exhaustor by exhaust blower, and the fully gas after burning is discharged by exhaustor.
During work, high-purity ammonium metavanadate that first content be more than 99% is ground to more than 180 mesh by grinder, then material is pressed ammonium metavanadate, graphite, iron powder weight ratio be 1 0.30 0.10 proportioning join in rolling wheel mixing and blending machine, it is stirred mixing to 40min, the ammonium sulfate of mass fraction 3% it is added into again in rolling wheel mixing and blending machine, the poly (vinyl alcohol) binder of 5%, the water uniform stirring 30min of 8.5%, after stirring, material is joined hydraulic pressure ball press, 10MPa hydraulic pressure ball press is utilized to be pressed into 35 × 35mm oval-shaped ball, reinstall graphite crucible, sent in push-plate type drying kiln by feeder；For ensureing the loss of vanadium in chilling process of vanadium mixed material, it is heated up to 180～250 DEG C in 12m electrical heating push-plate type drying kiln, carry out 150min drying and be divided into about 0.07% to material is aqueous, it is then fed in pushed bat kiln, the interior initial temperature that sets of pushed bat kiln is as 450 DEG C, and nitrogen pressure set is+5～10MPa.Now, the burner at gas discharge outlet that carbon monoxide and basic anhydride are arranged by kiln body upper port, after under the effect of air, CO burning completes, discharged from exhaustor by exhaust blower.The waste gas discharged for making ammonium metavanadate decompose can be discharged smoothly, is provided with pressure exhaust blower at exhaustor.In guarantee kiln in the case of pressure-fired, reaction is passed through the nitrogen being about flow 2.5m3/min content 99.999% per minute at the very start.Now, material starts carburizing reagent, and the carburizing reagent time is 270min, subsequently temperature being gradually increased to 800～1450 DEG C, make material gradually carry out nitridation reaction, the nitridation reaction time is 210min, then by rapid cooling measure, treat that material is cooled to less than 70 DEG C kiln discharges.
The vanadium-nitrogen alloy product using output of the present invention can reach V=80, N=18, C=4.2, Si=0.036, P=0.017, S=0.023, Ai=0.012, density are 3.62～4.21g/cm3。
It addition, the said equipment belongs to prior art, therefore seldom state.
Claims (8)
1. one kind uses the method that ammonium metavanadate produces VN alloy, it is characterised in that comprise the following steps:
(1) first ammonium metavanadate is ground to more than 180 mesh by grinder, then material is joined in mixing and blending machine by the proportioning that ammonium metavanadate, graphite, iron powder weight ratio are 1 0.30 0.10, be stirred mixing to 40min；
(2) in the mixing and blending machine of step (1), 3% ammonium sulfate of heavy amount, 5% poly (vinyl alcohol) binder, 8.5% water are added again, uniform stirring 30min, by material input hydraulic pressure ball press after stirring, hydraulic pressure ball press is utilized to be pressed into 35 × 35mm oval-shaped ball, reinstall graphite crucible, being sent in push-plate type drying kiln by feeder, in push-plate type drying kiln, heating-up temperature is to 200～250 DEG C, carries out 150min drying and is divided into 0.05-0.10% to material is aqueous；
(3) being then fed in pushed bat kiln, the interior initial temperature that sets of pushed bat kiln is as 450 DEG C, and nitrogen pressure set is+5～10MPa, is passed through about flow 2.5m per minute3The nitrogen of/min, carries out carburizing reagent, and the carburizing reagent time is 270min, subsequently temperature is gradually increased to 800～1450 DEG C, makes material gradually carry out nitridation reaction, and the nitridation reaction time is 210min, then lowers the temperature, and treats that material is cooled to less than 70 DEG C, gets final product kiln discharge.
2. one kind is used for a kind of equipment using ammonium metavanadate to produce VN alloy method as claimed in claim 1, it is characterized in that: include grinder, described grinder is connected with rolling wheel mixing and blending machine, hydraulic pressure ball press and graphite crucible successively, described graphite crucible is connected with push-plate type drying kiln by feeder, graphite crucible is sent in push-plate type drying kiln by feeder, and described push-plate type drying kiln is connected with pushed bat kiln.
Equipment the most according to claim 2, it is characterised in that: described grinder is ammonium metavanadate materials abrasive machine, and grind size is more than 180 mesh.
Equipment the most according to claim 2, it is characterised in that: the heating-up temperature in described push-plate type drying kiln stabilizes to 200～250 DEG C.
Equipment the most according to claim 2, it is characterised in that: the interior initial temperature that sets of described pushed bat kiln is as 450 DEG C, and nitrogen pressure set is 5～10MPa.
Equipment the most according to claim 2, it is characterised in that: being passed through flow per minute in described pushed bat kiln is 2.5m3The nitrogen of/min.
Equipment the most according to claim 2, it is characterised in that: the kiln body upper port of described pushed bat kiln is provided with gas discharge outlet, is provided with burner at described gas discharge outlet.
Equipment the most according to claim 7, it is characterised in that: described gas discharge outlet is connected with exhaustor by exhaust blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047431.8A CN105986140A (en) | 2015-01-30 | 2015-01-30 | Method and apparatus for producing vanadium nitrogen alloy by using ammonium metavanadate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510047431.8A CN105986140A (en) | 2015-01-30 | 2015-01-30 | Method and apparatus for producing vanadium nitrogen alloy by using ammonium metavanadate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105986140A true CN105986140A (en) | 2016-10-05 |
Family
ID=57035125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510047431.8A Pending CN105986140A (en) | 2015-01-30 | 2015-01-30 | Method and apparatus for producing vanadium nitrogen alloy by using ammonium metavanadate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105986140A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108018474A (en) * | 2017-11-09 | 2018-05-11 | 中国电子科技集团公司第四十八研究所 | A kind of method that vanadium nitride is prepared with ammonium metavanadate serialization |
| CN113737041A (en) * | 2021-08-27 | 2021-12-03 | 湖南众鑫新材料科技股份有限公司 | Method for industrial production of vanadium-nitrogen alloy product |
| CN114182133A (en) * | 2021-11-30 | 2022-03-15 | 江西林力高新材料有限公司 | Production process of vanadium-nitrogen alloy with high-purity by-product |
| CN114231781A (en) * | 2021-11-12 | 2022-03-25 | 攀钢集团攀枝花钢铁研究院有限公司 | Preparation method of high-nitrogen vanadium-nitrogen alloy |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319282A (en) * | 2008-06-28 | 2008-12-10 | 刘先松 | Method for manufacturing high-density vanadium-nitrogen alloy |
| CN101693975A (en) * | 2009-10-28 | 2010-04-14 | 攀钢集团攀枝花钢钒有限公司 | Method for increasing nitrogen content of vanadium-nitrogen alloy |
| CN101717883A (en) * | 2009-07-22 | 2010-06-02 | 隋智通 | Continuous production method of vanadium (iron) carbonitride and device thereof |
| CN101921941A (en) * | 2010-09-17 | 2010-12-22 | 甘锦旺 | Method for producing vanadium-nitrogen alloy |
| CN102277522A (en) * | 2011-07-28 | 2011-12-14 | 四川省川威集团有限公司 | Method for producing vanadium and nitrogen alloy |
| CN102465226A (en) * | 2010-11-16 | 2012-05-23 | 安阳昱千鑫冶金耐材有限公司 | Method for preparing vanadium-nitrogen alloy by using vanadium oxycarbonitride |
| CN102644015A (en) * | 2012-04-11 | 2012-08-22 | 河北钢铁股份有限公司承德分公司 | Production method for vanadium nitride ferroalloy |
| CN103952512A (en) * | 2014-05-12 | 2014-07-30 | 徐春霞 | Method for preparing vanadium-nitrogen alloy |
| CN204417569U (en) * | 2015-01-16 | 2015-06-24 | 新疆众豪钒业科技有限公司 | A kind of system adopting ammonium meta-vanadate production VN alloy |
-
2015
- 2015-01-30 CN CN201510047431.8A patent/CN105986140A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319282A (en) * | 2008-06-28 | 2008-12-10 | 刘先松 | Method for manufacturing high-density vanadium-nitrogen alloy |
| CN101717883A (en) * | 2009-07-22 | 2010-06-02 | 隋智通 | Continuous production method of vanadium (iron) carbonitride and device thereof |
| CN101693975A (en) * | 2009-10-28 | 2010-04-14 | 攀钢集团攀枝花钢钒有限公司 | Method for increasing nitrogen content of vanadium-nitrogen alloy |
| CN101921941A (en) * | 2010-09-17 | 2010-12-22 | 甘锦旺 | Method for producing vanadium-nitrogen alloy |
| CN102465226A (en) * | 2010-11-16 | 2012-05-23 | 安阳昱千鑫冶金耐材有限公司 | Method for preparing vanadium-nitrogen alloy by using vanadium oxycarbonitride |
| CN102277522A (en) * | 2011-07-28 | 2011-12-14 | 四川省川威集团有限公司 | Method for producing vanadium and nitrogen alloy |
| CN102644015A (en) * | 2012-04-11 | 2012-08-22 | 河北钢铁股份有限公司承德分公司 | Production method for vanadium nitride ferroalloy |
| CN103952512A (en) * | 2014-05-12 | 2014-07-30 | 徐春霞 | Method for preparing vanadium-nitrogen alloy |
| CN204417569U (en) * | 2015-01-16 | 2015-06-24 | 新疆众豪钒业科技有限公司 | A kind of system adopting ammonium meta-vanadate production VN alloy |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108018474A (en) * | 2017-11-09 | 2018-05-11 | 中国电子科技集团公司第四十八研究所 | A kind of method that vanadium nitride is prepared with ammonium metavanadate serialization |
| CN113737041A (en) * | 2021-08-27 | 2021-12-03 | 湖南众鑫新材料科技股份有限公司 | Method for industrial production of vanadium-nitrogen alloy product |
| CN114231781A (en) * | 2021-11-12 | 2022-03-25 | 攀钢集团攀枝花钢铁研究院有限公司 | Preparation method of high-nitrogen vanadium-nitrogen alloy |
| CN114231781B (en) * | 2021-11-12 | 2022-07-19 | 攀钢集团攀枝花钢铁研究院有限公司 | Preparation method of high-nitrogen vanadium-nitrogen alloy |
| CN114182133A (en) * | 2021-11-30 | 2022-03-15 | 江西林力高新材料有限公司 | Production process of vanadium-nitrogen alloy with high-purity by-product |
| CN114182133B (en) * | 2021-11-30 | 2022-06-21 | 江西林力高新材料有限公司 | Production process of vanadium-nitrogen alloy with high-purity by-product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101289713B (en) | Production process of vanadium-nitrogen alloy | |
| CN104259470B (en) | A kind of low pine is than the production method of high fine powder rate 100 order reduced iron powders | |
| CN105986140A (en) | Method and apparatus for producing vanadium nitrogen alloy by using ammonium metavanadate | |
| CN101660062B (en) | Method for producing vacuum chromium under vacuum condition by using carbon powder as reducing agent | |
| CN108611538A (en) | The production method of the full content of vanadium VN alloy of standard lower bound | |
| CN102965526A (en) | Method for producing high-purity metal chromium by using carbon reduction method | |
| CN102644015A (en) | Production method for vanadium nitride ferroalloy | |
| CN107699780A (en) | A kind of method for preparing ferrovanadium nitride alloy | |
| CN107673317B (en) | Method for preparing vanadium nitride | |
| CN108004362A (en) | Troilite prepares sulfuric acid and the method and system of direct reduced iron | |
| CN103601160A (en) | Preparation method of manganese nitride | |
| CN107012385A (en) | The preparation method of high nitrogen VN alloy | |
| CN103409619B (en) | Cooled agglomerated pellet and preparation method thereof | |
| CN102936678A (en) | Vanadium-nitrogen alloy production method | |
| CN104531999A (en) | Method for preparing vanadium-nitrogen alloy | |
| CN204417569U (en) | A kind of system adopting ammonium meta-vanadate production VN alloy | |
| WO2023015765A1 (en) | Iron ore powder briquetting method and an extrusion molding die | |
| CN206256095U (en) | The system that a kind of new gas-based shaft kiln prepares sponge iron | |
| CN106048279B (en) | A kind of VN alloy liquid-phase sintering production method | |
| CN107353033A (en) | A kind of apparatus system of red mud production sintering-expanded haydite | |
| CN105838959A (en) | Vanadium nitrogen microalloy additive and preparing method thereof | |
| CN204529941U (en) | A kind of ferrovanadium nitride production system | |
| CN105986163A (en) | Nitrided ferrovanadium production method and apparatus | |
| CN106435081A (en) | Preparation system of direct reduction iron and preparation method | |
| CN110184521A (en) | A kind of compound density agent and the method that VN alloy is prepared using it |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161005 |