CN209873000U - Smelting system for treating iron-based multi-metal ore materials in short process - Google Patents
Smelting system for treating iron-based multi-metal ore materials in short process Download PDFInfo
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- CN209873000U CN209873000U CN201920522595.5U CN201920522595U CN209873000U CN 209873000 U CN209873000 U CN 209873000U CN 201920522595 U CN201920522595 U CN 201920522595U CN 209873000 U CN209873000 U CN 209873000U
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Abstract
The utility model provides a short-process smelting system for treating iron-based multi-metal ore materials. This molten bath system of smelting includes: the mixing device is provided with a material mixing inlet and a material mixing outlet; the inside of device is smelted to the molten bath is provided with the molten bath and sets up the partition wall in the molten bath, and the partition wall divide into melting zone and electric heat reduction zone with the molten bath, and the bottom and the electric heat reduction zone intercommunication of melting zone set up, and the molten bath still is provided with first charge door and the second charge door that communicates with the melting zone, and just first charge door setting is smelted the top of device at the molten bath, and the second charge door setting is smelted on the lateral wall of device at the molten bath, and the compounding export sets up with first charge door and/or second charge door intercommunication. The occupied area required by the smelting process is small, the configuration height difference of a molten pool smelting system is reduced, and the capital investment can be reduced; and the operation steps of discharging and adding the melt can be omitted, the melting pool can perform melting and reduction depletion operation, and the separation of the titanium slag and the vanadium-containing molten iron is facilitated.
Description
Technical Field
The utility model relates to a metal smelting field particularly, relates to a short flow handles system of smelting of iron-based polymetallic mineral aggregate.
Background
Vanadium titano-magnetite is an ore which is difficult to smelt. The vanadium titano-magnetite smelting device which is mature and applied at present mainly comprises a blast furnace smelting device and a rotary kiln-electric furnace smelting device.
The smelting process by adopting a blast furnace smelting device mainly comprises the steps of sintering or pelletizing vanadium-titanium magnetite ore, adding the sintered or pelletized vanadium-titanium magnetite ore into a blast furnace, and recovering iron and vanadium. Prior document CN102041331A discloses a process for smelting vanadium titano-magnetite in a blast furnace, wherein the blast furnace is used as a smelting device in the smelting process. But the smelting device has the main advantages of high production efficiency and large production scale, and has the defects of high comprehensive energy consumption, long flow, difficult separation of iron slag, low slag adhesion and low desulfurization capacity. In addition, the blast furnace method is used for TiO in the slag2Is required to be less thanHigh, typically less than 25%.
The rotary kiln-electric furnace device is characterized in that iron ore concentrate obtained by mineral separation can be directly used for smelting, the flow is short, the recovery rates of iron and vanadium are higher than those of a blast furnace device, but titanium slag cannot be recycled at present. Prior document CN107815537A discloses a treatment device for vanadium titano-magnetite, which comprises a rotary kiln, a coal injector, an electric furnace and a converter. Firstly, carrying out pre-reduction on vanadium titano-magnetite in a rotary kiln to obtain calcine; then the calcine enters an electric furnace for reduction smelting to obtain vanadium-containing molten iron; and finally, blowing the vanadium-containing molten iron in a converter to obtain semisteel and titanium slag. Compared with a blast furnace device, the rotary kiln-electric furnace smelting device has the advantages of low comprehensive energy consumption, no need of coking and sintering, and better environmental emission index. The rotary kiln-electric furnace method has the defects that the comprehensive energy consumption is still high, the dependence on electric power energy is strong, and the method is difficult to popularize in areas with deficient electric power resources or high electric power cost.
In view of the above problems, there is a need to provide a short-flow and low-energy-consumption smelting system for iron-based multi-metal ore.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a short flow handles system of smelting of iron-based polymetallic mineral aggregate to solve the long and high problem of energy consumption of the flow that current smelting process exists.
In order to achieve the above object, according to the utility model provides a short flow handles molten bath system of smelting of iron-based polymetallic mineral aggregate, molten bath system of smelting includes: the mixing device is provided with a material mixing inlet and a material mixing outlet; the inside of the molten pool smelting device is provided with a molten pool and a partition wall arranged in the molten pool, the partition wall divides the molten pool into a melting zone and an electric heating reduction zone, the bottom of the melting zone is communicated with the electric heating reduction zone, the molten pool is also provided with a first feed inlet and a second feed inlet which are communicated with the melting zone, a slag discharge port and a metal discharge port which are communicated with the electric heating reduction zone, the first feed inlet is arranged at the top of the molten pool smelting device, the second feed inlet is arranged on the side wall of the molten pool smelting device, and a mixing outlet is communicated with the first feed inlet and/or the second feed inlet.
Furthermore, the molten pool smelting device is provided with a first feed inlet, a second feed inlet and a slag discharge port, the first feed inlet is arranged at the top of the molten pool smelting device, and the second feed inlet is arranged on the side wall of the molten pool smelting device; the mixing outlet is communicated with the first charging opening and/or the second charging opening, the melting area comprises at least one first side-blowing spray gun, and a nozzle of the first side-blowing spray gun is immersed below the solid-phase materials in the melting area through the second charging opening so as to spray fuel and oxygen-enriched air into the melting area.
Further, the electro-thermal reduction zone comprises: the tail end of the electrode is positioned below the liquid level of the electrothermal reduction area and is used for supplying heat to the electrothermal reduction process; and the nozzle of the second side-blowing spray gun and the nozzle of the top-blowing spray gun are both positioned above the liquid level of the electrothermal reduction zone and are used for spraying the reducing agent into the electrothermal reduction zone.
Furthermore, the height difference between the bottom wall of the melting zone and the bottom wall of the electric heating reduction zone is 0-500 mm.
Further, the height of the bottom wall of the melting zone is higher than that of the bottom wall of the electrothermal reduction zone.
Furthermore, the height difference between the bottom wall of the melting zone and the bottom wall of the electric heating reduction zone is 150-500 mm.
Further, the slope of the bearing part between the bottom wall of the melting area and the bottom wall of the electric heating reduction area is 0-90 degrees.
Further, the slope of the bearing part between the bottom wall of the melting zone and the bottom wall of the electric heating reduction zone is 30-60 degrees.
Furthermore, the molten pool smelting device is also provided with a flue, and the flue is arranged at the top of the molten pool corresponding to the electric heating reduction zone.
Furthermore, the molten pool smelting system also comprises a dust collecting device which is provided with a flue gas inlet, and the flue gas inlet is communicated with the outlet end of the flue through a flue gas conveying pipeline.
Further, the molten pool smelting system further comprises a waste heat recovery device, and the waste heat recovery device is arranged on the flue gas conveying pipeline.
Further, the molten pool smelting system further comprises a crushing and drying device, the crushing and drying device is used for crushing and drying the reaction raw materials, the crushing and drying device is provided with a discharge opening, and the discharge opening is communicated with the ingredient inlet.
Further, the discharge opening is smaller than 50 mm.
Use the technical scheme of the utility model, among the above-mentioned system of smelting, reaction raw materials accomplish melting process and electrothermal reduction and the process of impoverishing in the device is smelted to the molten bath after the compounding of compounding device. In the melting bath smelting device, the bottom wall of the melting zone is higher than the bottom wall of the electrothermal reduction zone, so that the melting liquid of the iron-based multi-metal mineral material can be separated from the incompletely melted raw material, the reduction object of the reducing agent is more pertinent, and the recovery rate of iron elements and vanadium elements in the electrothermal reduction process is favorably improved. On the other hand, the melting and the electrothermal reduction processes are finished in the same melting device, so that on one hand, the occupied area required by the melting process is small, the configuration height difference of a molten pool melting device is reduced, and simultaneously, the capital investment on the molten pool melting device can be reduced; on the other hand, the operation steps of discharging and adding the melt can be omitted, the production operation efficiency is improved, and the consumption of operators and corresponding tools and appliances is reduced. In addition, the treatment capacity of the smelting system can be improved, the slag storage time is prolonged, the separation of titanium slag and vanadium-containing molten iron is facilitated, and the recovery rate of vanadium is improved. On the basis, the smelting system is adopted to treat the iron-based metal-replacing mineral aggregate, which is beneficial to shortening the process flow, reducing the occupied area and capital investment of equipment, and has the advantages of high vanadium recovery rate, low energy consumption, large treatment smelting and the like.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 illustrates a schematic structural view of a molten bath smelting apparatus for processing iron-based multi-metal ore material in accordance with a preferred embodiment of the present invention;
FIG. 2 illustrates an A-A side view of a molten bath smelting system for processing iron-based multi-metal ore material provided in accordance with a preferred embodiment of the present invention;
FIG. 3 illustrates a C-C side view of a molten bath smelting system for processing iron-based multi-metal ore material provided in accordance with a preferred embodiment of the present invention;
fig. 4 shows a schematic diagram of a molten bath smelting system for treating iron-based multi-metal ore material according to a preferred embodiment of the present invention.
Wherein the figures include the following reference numerals:
100. a mixing device;
200. a molten bath smelting device; 210. a melting zone; 211. a first side-blowing spray gun; 2101. a first feed inlet; 2102. a second feed inlet; 220. an electrically heated reduction zone; 221. an electrode; 222. a second side-blowing lance; 223. a top-blown spray gun; 224. a flue; 2201. a slag discharge port; 230. a partition wall;
300. a dust collecting device; 400. a waste heat recovery device; 500. a crushing and drying device.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail with reference to examples.
As described in the background art, the current smelting process has the problems of long flow and high energy consumption. In order to solve the above technical problems, the present application provides a smelting system for processing iron-based multi-metal ore materials in a short process, as shown in fig. 1 and 4, the molten bath smelting system comprising: the device comprises a mixing device 100 and a molten pool smelting device 200, wherein the mixing device 100 is provided with a material mixing inlet and a material mixing outlet; the molten pool smelting device 200 is internally provided with a molten pool and a partition wall 230 arranged in the molten pool, the partition wall 230 divides the molten pool into a melting zone 210 and an electrothermal reduction zone 220, the bottom wall of the melting zone 210 is higher than the bottom wall of the electrothermal reduction zone 220, the bottom of the melting zone 210 is communicated with the electrothermal reduction zone 220, the molten pool smelting device 200 is provided with a first feed opening 2101 and a second feed opening 2102 which are communicated with the melting zone 210, a slag discharge opening 2201 and a metal discharge opening 2202 which are communicated with the electrothermal reduction zone 220, the first feed opening 2101 is arranged at the top of the molten pool smelting device, the second feed opening 2102 is arranged on the side wall of the molten pool smelting device, and the mixing outlet is communicated with the first feed opening 2101 and/or the second feed opening 2102.
The melting bath is divided into a melting zone 210 and an electrothermal reduction zone 220 by arranging a partition wall 230, and the melting zone 210 is communicated with the bottom of the electrothermal reduction zone 220, so that the melting process and the electrothermal reduction process can be completed in one melting device. In the smelting process, iron-based multi-metal ore materials, fuel, combustion-supporting gas and the like are added into the mixing device 100 from a material mixing port for mixing, then the mixture is discharged from a material mixing outlet, and is conveyed to a melting zone 210 of the molten pool smelting device 200 through a first feeding port 2101 and/or a second feeding port 2102, so that the iron-based multi-metal ore materials are melted and partially reduced and are converted into molten liquid. Then the molten liquid flows to the electrothermal reduction area 220 to carry out reduction reaction, and simultaneously, under the depletion effect of the electrodes, liquid phase products and solid phase products in a reduction product system are separated to obtain molten iron and titanium slag containing vanadium elements, and the molten iron and the titanium slag are correspondingly discharged through a slag discharge port 2201 and a metal discharge port 2202.
In the smelting system, after reaction raw materials are mixed by the mixing device 100, a melting process and an electrothermal reduction and dilution process are completed in the molten pool smelting device 200. In the molten pool smelting device 200, the bottom wall of the melting zone 210 is higher than the bottom wall of the electrothermal reduction zone 220, so that the molten liquid of the iron-based multi-metal mineral material can be separated from the incompletely molten raw material, the reduction object of the reducing agent is more targeted, and the recovery rate of iron element and vanadium element in the electrothermal reduction process is improved. On the other hand, the melting and the electrothermal reduction processes are finished in the same melting device, so that on one hand, the occupied area required by the melting process is small, the configuration height difference of a molten pool melting device is reduced, and simultaneously, the capital investment on the molten pool melting device can be reduced; on the other hand, the operation steps of discharging and adding the melt can be omitted, the production operation efficiency is improved, and the consumption of operators and corresponding tools and appliances is reduced. In addition, the treatment capacity of the smelting system can be improved, the slag storage time is prolonged, the separation of titanium slag and vanadium-containing molten iron is facilitated, and the recovery rate of vanadium is improved. On the basis, the smelting system is adopted to treat the iron-based metal-replacing mineral aggregate, which is beneficial to shortening the process flow, reducing the occupied area and capital investment of equipment, and has the advantages of high vanadium recovery rate, low energy consumption, large treatment smelting and the like.
In a preferred embodiment, as shown in FIGS. 1 and 2, the melting zone 210 comprises at least one first side-blowing lance 211, the nozzle of the first side-blowing lance 211 being submerged below the solid phase material in the melting zone 210 via a second feed port 2102 for injecting fuel and oxygen-enriched air into the melting zone 210. The fuel and the oxygen-enriched air are injected into the melting zone 210 by the first side-blowing lance 211, so that the molten liquid in the melting zone can be strongly stirred, the mass and heat transfer efficiency can be improved, and meanwhile, the recovery rate of the subsequent vanadium element and the like can be improved.
In a preferred embodiment, as shown in fig. 1 and 3, the electro-thermal reduction zone 220 comprises: at least one electrode 221 and at least one second side-blowing lance 222 and at least one top-blowing lance 223, the end of each electrode 221 being located below the liquid level of the electrothermal reduction zone 220 for supplying heat to the electrothermal reduction process; the second side-blowing lance 222 and the top-blowing lance 223 are both located above the liquid level of the electrothermal reduction zone 220 for injecting the reductant into the electrothermal reduction zone 220. The reducing agent is injected by using the second side-blowing lance 222 and/or the top-blowing lance 223 so that the contact area of the molten liquid and the reducing agent can be increased to sufficiently react with each other. Meanwhile, the reducing agent is sprayed above the liquid level of the electrothermal reduction zone 220, which is beneficial to inhibiting the adding of raw materials from stirring the liquid level of the electrothermal reduction zone 220, thereby reducing the influence of the reducing agent on the separation efficiency of vanadium-containing molten iron and titanium slag in the depletion process.
In a preferred embodiment, the height difference between the bottom wall of the melting zone 10 and the bottom wall of the electrothermal reduction zone 20 is 0 to 500 mm. Preferably, the height of the bottom wall of the melting zone 210 is higher than that of the bottom wall of the electrothermal reduction zone 220. Because the bottom wall of the melting zone 10 is higher than the bottom wall of the electrothermal reduction zone 20, and the bottom of the melting zone 10 is communicated with the electrothermal reduction zone 20, the melting liquid of the iron-based multi-metal mineral material can be separated from the incompletely melted raw materials, the reduction object of the reducing agent is more targeted, and the recovery rate of iron elements and vanadium elements in the electrothermal reduction process is favorably improved. In order to further improve the recovery rate of vanadium, it is more preferable that the height difference between the bottom wall of the melting zone 10 and the bottom wall of the electrothermal reduction zone 20 is 150 to 500 mm.
In order to increase the flow rate of the molten metal more effectively, in a preferred embodiment, the slope of the receiving portion between the bottom wall of the melting zone 10 and the bottom wall of the electrothermal reduction zone 20 is 0 to 90 °, preferably 30 to 60 °, and more preferably 45 to 60 °.
In order to facilitate the discharge of the flue gas, a certain amount of flue gas is generated in the smelting process, and in a preferred embodiment, as shown in fig. 1, the molten bath smelting device 200 is further provided with a flue 224, and the flue 224 is arranged at the top of the molten bath corresponding to the electrothermal reduction zone 220. In order to accelerate the discharge rate of the flue gas, it is more preferable that the flue 224 is disposed at the top of the molten bath corresponding to the electro-thermal reduction zone 220 and near the melting zone 210.
A certain amount of flue gas is generated in the smelting process, and generally the flue gas contains higher heat. In order to improve the energy utilization rate, in a preferred embodiment, as shown in fig. 4, the molten bath smelting system further comprises a waste heat recovery device 400, and the waste heat recovery device 400 is arranged on the flue gas conveying pipeline.
In order to improve the environmental protection of the whole process, as shown in fig. 4, the molten bath smelting system further includes a dust collecting device 300 provided with a flue gas inlet, which is communicated with the outlet end of the flue 224 through a flue gas conveying pipeline.
In a preferred embodiment, the molten bath smelting system further comprises a crushing and drying device 500, as shown in fig. 4, for crushing and drying the reaction raw materials, wherein the crushing and drying device 500 is provided with a discharge opening, and the discharge opening is communicated with the ingredient inlet; preferably, the discharge opening is smaller than 50 mm. The crushing and drying device 500 is arranged, so that the granularity and the water content of the iron-based multi-metal mineral materials are limited in the range, and the melting efficiency of the iron-based multi-metal mineral materials is improved.
The present application is described in further detail below with reference to specific examples, which should not be construed as limiting the scope of the invention as claimed.
The composition of the iron-based polymetallic mineral aggregates of examples 1 to 7 and comparative example 1 is Fe 45-62 wt%, TiO2 7～20wt％、V2O50.1-1.2 wt%, and the balance of impurities, and the process flow is shown in figure 1.
Example 1
As shown in fig. 2 to 4, a partition wall 230 is provided inside a molten bath of the molten bath smelting apparatus to divide the molten bath into a melting zone 210 and an electrothermal reducing zone 220, and the bottom of the melting zone 210 communicates with the electrothermal reducing zone 220. The charge is introduced into the melting zone from the second feed inlet 2102 and the melting zone 210 includes a first side-blowing lance 211 having a nozzle immersed below the solid phase material in the melting zone 210 for injecting fuel and oxygen-enriched air into the melting zone 210.
The electrothermal reduction area 220 is provided with 3 electrodes 221 (self-baking electrodes) and adopts alternating current power supply. A second side-blowing lance 222 and a top-blowing lance 223 are provided. The tail end of each electrode 221 is positioned below the solid-phase material in the electrothermal reduction area 220 and is used for supplying heat to the electrothermal reduction process; the nozzle of the second side-blowing lance 222 is located above the liquid level of the electro-thermal reduction zone 220 for injecting reductant into the electro-thermal reduction zone 220. The height difference between the bottom wall of the melting zone 210 and the bottom wall of the electrothermal reducing zone 220 is 200mm, and the slope of the receiving part between the bottom wall of the melting zone 210 and the bottom wall of the electrothermal reducing zone 220 is 45 °. The bath smelting unit is also provided with a flue 224, the flue 224 being located at the top of the bath corresponding to the electro-thermal reduction zone 220. The flue 224 is disposed at the top of the molten bath corresponding to the electro-thermal reduction zone 220 and near the melting zone 210. The reduction smelting temperature in the smelting process is about 1600 ℃.
Through the smelting process, the recovery rate of the vanadium element is 96 wt%, and the recovery rate of the iron element is 89 wt%.
Example 2
The differences from example 1 are:
the melting zone was not injected with fuel using a submerged side-blown lance.
Through the smelting process, the recovery rate of the vanadium element is 91 wt%, the recovery rate of the iron element is 86 wt%, and the comprehensive energy consumption is 8% higher than that of the example 1.
Example 3
The differences from example 1 are: the slope of the receiving portion between the bottom wall of the melting zone 210 and the bottom wall of the electrothermal reduction zone 220 is 30 °.
Through the smelting process, the recovery rate of the vanadium element is 93 wt%, and the recovery rate of the iron element is 87 wt%
Example 4
The differences from example 1 are: the height difference between the bottom wall of the melting zone 210 and the bottom wall of the electrothermal reduction zone 220 is 100 mm.
Through the smelting process, the recovery rate of the vanadium element is 88 wt%, and the recovery rate of the iron element is 85 wt%.
Example 5
The differences from example 1 are: the number of the electrodes 221 of the electrothermal reduction region 220 is 2.
Through the smelting process, the recovery rate of the vanadium element is 94 wt%, and the recovery rate of the iron element is 85 wt%.
Example 6
The differences from example 1 are: the electrode 221 of the electrothermal reduction region 220 is made of graphite electrode.
Through the smelting process, the recovery rate of the vanadium element is 95 wt%, and the recovery rate of the iron element is 88 wt%.
Example 7
The differences from example 1 are: the electrically heated reduction zone 220 employs a top-blown lance 223 for addition of the reducing agent.
Through the smelting process, the recovery rate of vanadium is 94 wt%, the recovery rate of iron is 87 wt%, and the comprehensive energy consumption is 5% higher than that of example 1.
Comparative example 1
The differences from example 1 are: no partition wall is provided between the melting zone 210 and the electrothermal reduction zone 220.
Through the smelting process, the recovery rate of the vanadium element is 82 wt%, the recovery rate of the iron element is 85 wt%, and the comprehensive energy consumption is 5% higher than that of the example 1.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: the smelting system is adopted to treat the iron-based metal-replacing mineral aggregate, which is beneficial to shortening the process flow, reducing the occupied area and capital investment of equipment, and has the advantages of high vanadium recovery rate, low energy consumption, large treatment smelting capacity and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. A molten bath smelting system for short-process treatment of iron-based multi-metal ore, characterized in that the molten bath smelting system comprises:
the mixing device (100), the mixing device (100) is provided with a batching inlet and a mixing outlet;
a molten pool smelting device (200), wherein a molten pool and a partition wall (230) arranged in the molten pool are arranged in the molten pool smelting device (200), the partition wall (230) divides the molten pool into a melting zone (210) and an electrothermal reduction zone (220), and the bottom of the melting zone (210) is communicated with the electric heating reduction zone (220), the molten pool is also provided with a first feed inlet (2101) and a second feed inlet (2102) which are communicated with the melting zone (210), and a slag discharge port (2201) and a metal discharge port (2202) which are communicated with the electrothermal reduction zone (220), and the first feed opening (2101) is arranged at the top of the molten bath smelting device, the second feed opening (2102) is arranged on the side wall of the molten bath smelting device, the mixing outlet is communicated with the first feeding opening (2101) and/or the second feeding opening (2102).
2. The molten bath smelting system according to claim 1, wherein the melting zone (210) includes at least one first side-blowing lance (211), the nozzle of the first side-blowing lance (211) being submerged below the solid phase material in the melting zone (210) via the second feed port (2102) for injecting fuel and oxygen-enriched air into the melting zone (210).
3. The molten bath smelting system according to claim 1 or claim 2, wherein the electro-thermal reduction zone (220) includes:
at least one electrode (221), the end of the electrode (221) being located below the liquid level of the electro-thermal reduction zone (220) for supplying heat to the electro-thermal reduction process;
at least one second side-blowing lance (222) and at least one top-blowing lance (223), wherein the nozzle of the second side-blowing lance (222) and the nozzle of the top-blowing lance (223) are both positioned above the liquid level of the electrothermal reduction zone (220) for injecting a reducing agent into the electrothermal reduction zone (220).
4. The molten bath smelting system according to claim 1, wherein the height difference between the bottom wall of the melting zone (210) and the bottom wall of the electro-thermal reduction zone (220) is 0-500 mm.
5. The molten bath smelting system of claim 4, wherein the bottom wall of the melting zone (210) is at a higher elevation than the bottom wall of the electro-thermal reduction zone (220).
6. The molten bath smelting system according to claim 5, wherein the height difference between the bottom wall of the melting zone (210) and the bottom wall of the electro-thermal reduction zone (220) is 150-500 mm.
7. The molten bath smelting system according to claim 4 or 5, wherein the slope of the bolster between the bottom wall of the melting zone (210) and the bottom wall of the electro-thermal reduction zone (220) is 0-90 °.
8. The molten bath smelting system according to claim 7, wherein the slope of the bolster between the bottom wall of the melting zone (210) and the bottom wall of the electro-thermal reduction zone (220) is 30-60 °.
9. The molten bath smelting system according to claim 1, wherein the molten bath smelting apparatus (200) is further provided with a flue (224), the flue (224) being disposed at a top of the molten bath corresponding to the electro-thermal reduction zone (220).
10. The molten bath smelting system according to claim 9, further comprising a dust collection device (300) provided with a flue gas inlet communicating with an outlet end of the flue (224) via a flue gas delivery line.
11. The molten bath smelting system of claim 10, further comprising a waste heat recovery device (400), the waste heat recovery device (400) being disposed on the flue gas delivery line.
12. The molten bath smelting system of claim 11, further comprising a crushing and drying device (500) for crushing and drying the reaction raw materials, wherein the crushing and drying device (500) is provided with a discharge outlet, and the discharge outlet is communicated with the ingredient inlet.
13. The molten bath smelting system of claim 12, wherein said discharge opening is less than 50 mm.
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| CN201920522595.5U CN209873000U (en) | 2019-04-17 | 2019-04-17 | Smelting system for treating iron-based multi-metal ore materials in short process |
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| CN201920522595.5U CN209873000U (en) | 2019-04-17 | 2019-04-17 | Smelting system for treating iron-based multi-metal ore materials in short process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109880956A (en) * | 2019-04-17 | 2019-06-14 | 中国恩菲工程技术有限公司 | Short route handles the smelting system of iron-based polymetallic ore material |
| CN114480771A (en) * | 2022-02-11 | 2022-05-13 | 中钢设备有限公司 | Integrated iron making device |
-
2019
- 2019-04-17 CN CN201920522595.5U patent/CN209873000U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109880956A (en) * | 2019-04-17 | 2019-06-14 | 中国恩菲工程技术有限公司 | Short route handles the smelting system of iron-based polymetallic ore material |
| CN114480771A (en) * | 2022-02-11 | 2022-05-13 | 中钢设备有限公司 | Integrated iron making device |
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