CN109097667B - Production equipment and process for producing ferrovanadium from ammonium metavanadate - Google Patents
Production equipment and process for producing ferrovanadium from ammonium metavanadate Download PDFInfo
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- CN109097667B CN109097667B CN201810882873.8A CN201810882873A CN109097667B CN 109097667 B CN109097667 B CN 109097667B CN 201810882873 A CN201810882873 A CN 201810882873A CN 109097667 B CN109097667 B CN 109097667B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C35/00—Master alloys for iron or steel
Abstract
The invention belongs to the field of ferrovanadium production, and particularly relates to production equipment for producing ferrovanadium by using ammonium metavanadate and a production process thereof; the ventilating duct is horizontally and fixedly arranged on the top of the drying furnace and is provided with a gas duct interface and an air supply duct interface; the coal gas generating furnace is connected with a coal gas pipeline interface on a ventilating pipeline on the top of the drying furnace through a coal gas pipeline, the air feeder is connected with an air feeding pipeline interface on the ventilating pipeline on the top of the drying furnace through an air feeding pipeline, the lowest part of the upper surface of the material bed is provided with a chute, and the chute penetrates through the body of the drying furnace and is connected with the ferrovanadium casting machine; the operation is simple, the energy consumption is low, the production process is simple, the coal gas produced by the coal gas generator is sprayed into the hearth of the drying furnace through the flame nozzle, the utilization rate of the coal gas is high, and no dust or pollutant is produced in the whole process; the ferrovanadium liquid calcined in the hearth of the drying furnace is connected with a ferrovanadium casting machine through a chute to directly produce partial ferrovanadium, the implementation is convenient, and the investment cost is low.
Description
The technical field is as follows:
the invention belongs to the field of ferrovanadium production, and particularly relates to production equipment for producing ferrovanadium from ammonium metavanadate and a production process thereof.
Background art:
ferrovanadium is an iron alloy used in the steel industry. Its main components are vanadium and iron, and also contains impurities of sulfur, phosphorus, silicon and aluminium. There are 3 kinds of ferrovanadium according to the vanadium content: FeV40 (V35.0% -50.0%, Si < 2.0%, Al < 4.0%, C < 0.30%, P < 0.10%, S < 0.10%); FeV60 (V50.0% -65.0%, Si < 2.0%, Al < 2.5%, C < 0.30%, P < 0.06%, S < 0.05%) and FeV80 (V75.0% -85.0%, Si < 2.0%, Al < 1.5%, C < 0.30%, P < 0.06%, S < 0.05%). In addition, there are also commercial name vanadium additives, such as Carvan vanadium (V82% -87%, C10.5% -14.5%), Nitrovan vanadium (V78% -82%, C10% -12%, N > 6.0%), Ferovan (V > 40%, Si 5.5% -7.0%, Cr5.5% -7.5%, Mn3.6% -4.5%), etc., which are used as additives for smelting alloy steel and low alloy steel. Vanadium-aluminum alloys are used in titanium alloy production, often referred to as "VQ" VAl. The atomic weight of vanadium was 50.9414, and the outer electronic structure was 3d4 s. Melting Point 1902 ℃. Boiling point 3410 ℃. The density was 6.1g/cm (20 ℃ C.). Vanadium is a malleable metal. The binary phase diagram of vanadium and iron is shown in figure 1. Vanadium forms a continuous solid solution with iron. And forming an intermetallic compound alpha (FeV) phase at a temperature of less than 1210 ℃ and in the range of V35% to 55%.
The production process of ferrovanadium generally comprises vanadium titano-magnetite production of vanadium pentoxide, an aluminothermic method and an electro-silicothermic method, but the research on the production of ferrovanadium by using ammonium metavanadate is very little.
The invention content is as follows:
in view of the above disadvantages, the present invention provides a production apparatus for producing ferrovanadium from ammonium metavanadate and a production process thereof, which have the advantages of simple structure, convenient operation, low energy consumption and low production cost.
A production device for producing ferrovanadium from ammonium metavanadate comprises a drying furnace, a gas producer, a blower, a ventilating duct, a ferrovanadium casting machine and a material shovel; the ventilating duct is horizontally and fixedly arranged on the top of the drying furnace and is provided with a gas pipeline interface and an air supply pipeline interface; the gas producer is connected with a gas pipeline interface on a ventilating pipeline on the top of the drying furnace through a gas pipeline, and the blower is connected with an air supply pipeline interface on the ventilating pipeline on the top of the drying furnace through an air supply pipeline; the drying furnace comprises a drying furnace body, a vent hole, a feeding hole, a drying furnace hearth, a material bed, a flame nozzle and a chute; the utility model discloses a material bed, including the stoving furnace body, stoving furnace body, air vent, gas pipeline and air pipe, the stoving furnace body be the stoving furnace body of rectangle built by insulation material, the cavity of stoving furnace body is stoving furnace chamber, the stoving furnace body on air vent left stoving furnace body and air vent right side on the stoving furnace body seted up the air vent, fixed mounting has the flame projecting nozzle respectively, the one end of flame projecting nozzle passes through gas pipeline and air pipe connection, the feed inlet setting in stoving furnace body left side and stoving furnace body right side, the material bed level link up fixed mounting in stoving furnace chamber, the left edge of material bed and the right limb of material bed and the lower limb parallel and level of feed inlet, material bed upper surface be concave type, the lower of material bed upper surface is provided with the chute, the chute passes the stoving furnace body and is connected with the ferrovanadium.
Preferably, the flame nozzle is obliquely and fixedly arranged above the oven body of the drying oven.
Preferably, the interior of the hearth of the drying furnace is divided into a heat preservation area and a heating area, the heat preservation areas are two ends of the hearth of the drying furnace, and the heating area is the hearth of the drying furnace below the flame spray nozzle.
Preferably, the ferrovanadium casting machine is provided with a cooling system.
Preferably, the vent hole is fixedly provided with a filter screen.
A production process for producing meta-ferrovanadium from meta-ammonia acid is characterized by comprising the following steps: the specific production process comprises the following steps:
the first step is as follows: opening feed ports on the left side and the right side of a drying furnace body, manually feeding ammonium metavanadate powder into a heat preservation area on a material bed in a drying furnace hearth, paving the ammonium metavanadate powder by using a material turning shovel, and closing the feed ports;
the second step is that: starting a gas producer, a blower and a ferrovanadium casting machine, igniting a flame nozzle, adjusting the air inflow to ensure that the temperature in a hearth of the drying furnace reaches 500-1000 ℃, wherein the temperature of a heat preservation area of the hearth of the drying furnace is 500-800 ℃, the temperature of a heating area of the hearth of the drying furnace is 900-1000 ℃, the ammonia metavanadate powder is heated in the heat preservation area for 1 hour, and the ammonia metavanadate powder is pushed into the heating area by a material turning shovel to be heated and melted into liquid;
the third step: the melted liquid flows into a ferrovanadium casting machine through a launder in a hearth of the drying furnace, the ferrovanadium casting machine cuts and cools the liquid to prepare partial ferrovanadium, and water vapor and produced ammonia in the hearth of the drying furnace are discharged through a vent hole on a furnace body of the drying furnace;
the fourth step: and (5) transporting the prepared partial ferrovanadium to a to-be-received vehicle for packaging, weighing and warehousing.
The invention has simple operation, low energy consumption and simple production process, and the coal gas produced by the coal gas generator is sprayed into the hearth of the drying furnace through the flame nozzle, so the coal gas utilization rate is high, and the whole process has no dust and no pollutant production; the ferrovanadium liquid calcined in the hearth of the drying furnace is connected with a ferrovanadium casting machine through a chute to directly produce partial ferrovanadium, so that the method is convenient to implement and low in investment cost; the gas combustion utilization rate is high, the energy consumption is low, and the production efficiency is high.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a drying oven according to the present invention.
FIG. 3 is a schematic view of the internal structure of the drying oven according to the present invention.
In the figure, a gas producer 1, a blower 2, a ventilating duct 3, a gas pipeline 4, an air supply pipeline 5, a drying furnace 6, a feed inlet 7, a chute 8, a ferrovanadium casting machine 9, a gas pipeline interface 10, an air supply pipeline interface 11, a chute 12, a fire nozzle 13, a drying furnace hearth 14, a material bed 15 and an air vent 16.
The specific implementation mode is as follows:
as shown in fig. 1, fig. 2 and fig. 3, a production device for producing ferrovanadium from ammonia metavanadate comprises a drying furnace 6, a gas producer 1, a blower 2, a ventilation pipeline 3, a ferrovanadium casting machine 9 and a material shovel. The ventilating duct 3 is horizontally and fixedly arranged on the top of the drying furnace 6, and a gas duct connector 10 and an air supply duct connector 11 are arranged on the ventilating duct 3; the gas producer 1 is connected with a gas pipeline interface 10 on a ventilating pipeline 3 at the top of the drying furnace 6 through a gas pipeline 4, and the blower 2 is connected with an air supply pipeline interface 11 on the ventilating pipeline 3 at the top of the drying furnace 6 through an air supply pipeline 5.
The drying furnace 6 comprises a drying furnace body, a vent hole 16, a feeding hole 7, a drying furnace hearth 14, a material bed 15, a flame nozzle 13 and a chute 8; the drying furnace body is a rectangular drying furnace body built by heat-insulating materials, a cavity of the drying furnace body is a drying furnace hearth 14, the top of the drying furnace body is provided with an air vent 16, the air vent 16 is fixedly provided with a filter screen, the drying furnace body at the left side of the air vent 16 and the drying furnace body at the right side of the air vent 16 are respectively and fixedly provided with a flame nozzle 13, the flame nozzle 13 is obliquely and fixedly arranged above the drying furnace body, one end of the flame nozzle 13 is connected with a ventilating duct 3 through a gas pipeline 4, the feed inlet 7 is arranged at the left side of the drying furnace body and the right side of the drying furnace body, the material bed 15 is horizontally communicated and fixedly arranged in the drying furnace hearth 14, the left edge of the material bed 15 and the right edge of the material bed 15 are flush with the lower edge of the feed inlet 7, the upper surface of the material bed 7 is concave, the lowest part of the upper surface of the material, the launder 12 passes through the drying furnace body and is connected with the ferrovanadium casting machine 9. The interior of the drying furnace hearth 14 is divided into a heat preservation area and a heating area, the heat preservation area is two ends of the drying furnace hearth 14, and the heating area is the drying furnace hearth 14 below the flame nozzle 13. And a cooling system is arranged on the ferrovanadium casting machine 9.
A production process for producing meta-ferrovanadium from meta-ammonia acid is characterized by comprising the following steps: the specific production process comprises the following steps:
the first step is as follows: opening the feed inlets 7 on the left side and the right side of the drying furnace body, manually feeding the ammonium metavanadate powder into a heat preservation area on a material bed in the drying furnace hearth 14, paving the ammonium metavanadate powder by using a material turning shovel, and closing the feed inlets 7;
the second step is that: starting the gas producer 1, the blower 2 and the ferrovanadium casting machine 9, igniting the flame nozzle 13, adjusting the air inflow to ensure that the temperature in the hearth 14 of the drying furnace reaches 500-;
the third step: the melted liquid flows into a ferrovanadium casting machine 9 through a launder 12 in a drying furnace hearth 14, the ferrovanadium casting machine 9 cuts and cools the liquid to prepare partial ferrovanadium, and water vapor and produced ammonia in the drying furnace hearth 14 are discharged through a vent hole 16 on a drying furnace body;
the fourth step: and (5) transporting the prepared partial ferrovanadium to a to-be-received vehicle for packaging, weighing and warehousing.
Claims (6)
1. The utility model provides a production facility of ammonium metavanadate production ferrovanadium which characterized in that: the production equipment comprises a drying furnace, a gas producer, a blower, a ventilating duct, a ferrovanadium casting machine and a material shovel; the ventilating duct is horizontally and fixedly arranged on the top of the drying furnace and is provided with a gas pipeline interface and an air supply pipeline interface; the gas producer is connected with a gas pipeline interface on a ventilating pipeline on the top of the drying furnace through a gas pipeline, and the blower is connected with an air supply pipeline interface on the ventilating pipeline on the top of the drying furnace through an air supply pipeline; the drying furnace comprises a drying furnace body, a vent hole, a feeding hole, a drying furnace hearth, a material bed, a flame nozzle and a chute; the utility model discloses a material bed, including the stoving furnace body, stoving furnace body, air vent, gas pipeline and air pipe, the stoving furnace body be the stoving furnace body of rectangle built by insulation material, the cavity of stoving furnace body is stoving furnace chamber, the stoving furnace body on air vent left stoving furnace body and air vent right side on the stoving furnace body seted up the air vent, fixed mounting has the flame projecting nozzle respectively, the one end of flame projecting nozzle passes through gas pipeline and air pipe connection, the feed inlet setting in stoving furnace body left side and stoving furnace body right side, the material bed level link up fixed mounting in stoving furnace chamber, the left edge of material bed and the right limb of material bed and the lower limb parallel and level of feed inlet, material bed upper surface be concave type, the lower of material bed upper surface is provided with the chute, the chute passes the stoving furnace body and is connected with the ferrovanadium.
2. The apparatus for producing ferrovanadium from ammonium metavanadate according to claim 1, wherein: the flame nozzle is obliquely and fixedly arranged above the drying furnace body.
3. The apparatus for producing ferrovanadium from ammonium metavanadate according to claim 1, wherein: the interior of the drying furnace hearth is divided into a heat preservation area and a heating area, the heat preservation areas are two ends of the drying furnace hearth, and the heating area is the drying furnace hearth below the flame spray nozzle.
4. The apparatus for producing ferrovanadium from ammonium metavanadate according to claim 1, wherein: and the ferrovanadium casting machine is provided with a cooling system.
5. The apparatus for producing ferrovanadium from ammonium metavanadate according to claim 1, wherein: the air vent is fixedly provided with a filter screen.
6. A production process for producing ferrovanadium from ammonium metavanadate is characterized by comprising the following steps: the specific production process comprises the following steps:
the first step is as follows: opening feed ports on the left side and the right side of a drying furnace body, manually feeding ammonium metavanadate powder into a heat preservation area on a material bed in a drying furnace hearth, paving the ammonium metavanadate powder by using a material turning shovel, and closing the feed ports;
the second step is that: starting a gas producer, a blower and a ferrovanadium casting machine, igniting a flame nozzle, adjusting the air inflow to ensure that the temperature in a hearth of the drying furnace reaches 500-1000 ℃, wherein the temperature of a heat preservation area of the hearth of the drying furnace is 500-800 ℃, the temperature of a heating area of the hearth of the drying furnace is 900-1000 ℃, the ammonia metavanadate powder is heated in the heat preservation area for 1 hour, and the ammonia metavanadate powder is pushed into the heating area by a material turning shovel to be heated and melted into liquid;
the third step: the melted liquid flows into a ferrovanadium casting machine through a launder in a hearth of the drying furnace, the ferrovanadium casting machine cuts and cools the liquid to prepare partial ferrovanadium, and water vapor and produced ammonia in the hearth of the drying furnace are discharged through a vent hole on a furnace body of the drying furnace;
the fourth step: and (5) transporting the prepared partial ferrovanadium to a to-be-received vehicle for packaging, weighing and warehousing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810882873.8A CN109097667B (en) | 2018-08-06 | 2018-08-06 | Production equipment and process for producing ferrovanadium from ammonium metavanadate |
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| CN201810882873.8A CN109097667B (en) | 2018-08-06 | 2018-08-06 | Production equipment and process for producing ferrovanadium from ammonium metavanadate |
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| CN109097667A CN109097667A (en) | 2018-12-28 |
| CN109097667B true CN109097667B (en) | 2020-08-18 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321233A (en) * | 1978-11-11 | 1982-03-23 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Combustion furnace or reactor with multi-stage fluidized bed system |
| JP2001098339A (en) * | 1999-08-11 | 2001-04-10 | Nippon Cms Kk | Method of producing vanadium alloy iron and vanadium alloy steel |
| CN103011289A (en) * | 2011-09-28 | 2013-04-03 | 黄明华 | Continuous device for preparing vanadium pentoxide from ammonium metavanadate |
| CN203785416U (en) * | 2014-03-20 | 2014-08-20 | 河北钢铁股份有限公司承德分公司 | Drying equipment for vanadium-nitrogen alloy raw material pellets |
| CN103993165A (en) * | 2014-06-04 | 2014-08-20 | 湖南创大钒钨有限公司 | Method for producing ferrovanadium by using ammonium metavanadate granulation to substitute flaky vanadium pentoxide |
| CN105546977A (en) * | 2016-02-04 | 2016-05-04 | 新疆硅质耐火材料有限公司 | Flame-proof gas energy-saving double-push-plate kiln, vanadium-nitrogen alloy device and preparation method |
-
2018
- 2018-08-06 CN CN201810882873.8A patent/CN109097667B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321233A (en) * | 1978-11-11 | 1982-03-23 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Combustion furnace or reactor with multi-stage fluidized bed system |
| JP2001098339A (en) * | 1999-08-11 | 2001-04-10 | Nippon Cms Kk | Method of producing vanadium alloy iron and vanadium alloy steel |
| CN103011289A (en) * | 2011-09-28 | 2013-04-03 | 黄明华 | Continuous device for preparing vanadium pentoxide from ammonium metavanadate |
| CN203785416U (en) * | 2014-03-20 | 2014-08-20 | 河北钢铁股份有限公司承德分公司 | Drying equipment for vanadium-nitrogen alloy raw material pellets |
| CN103993165A (en) * | 2014-06-04 | 2014-08-20 | 湖南创大钒钨有限公司 | Method for producing ferrovanadium by using ammonium metavanadate granulation to substitute flaky vanadium pentoxide |
| CN105546977A (en) * | 2016-02-04 | 2016-05-04 | 新疆硅质耐火材料有限公司 | Flame-proof gas energy-saving double-push-plate kiln, vanadium-nitrogen alloy device and preparation method |
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| CN109097667A (en) | 2018-12-28 |
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