CN103447148B - Microwave reduction is utilized to contain concentration equipment and the magnetic selection method of bloodstone material - Google Patents
Microwave reduction is utilized to contain concentration equipment and the magnetic selection method of bloodstone material Download PDFInfo
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- CN103447148B CN103447148B CN201310343427.7A CN201310343427A CN103447148B CN 103447148 B CN103447148 B CN 103447148B CN 201310343427 A CN201310343427 A CN 201310343427A CN 103447148 B CN103447148 B CN 103447148B
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- 239000000463 material Substances 0.000 title claims abstract description 44
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 39
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 230000009467 reduction Effects 0.000 title claims abstract description 18
- 238000010187 selection method Methods 0.000 title abstract description 11
- 238000007885 magnetic separation Methods 0.000 claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000006148 magnetic separator Substances 0.000 claims abstract description 20
- 238000009841 combustion method Methods 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 239000000567 combustion gas Substances 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 6
- 239000012774 insulation material Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 51
- 239000002893 slag Substances 0.000 abstract description 21
- 229910052742 iron Inorganic materials 0.000 abstract description 20
- 238000006722 reduction reaction Methods 0.000 abstract description 16
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 12
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000012141 concentrate Substances 0.000 abstract description 4
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- 238000011084 recovery Methods 0.000 description 4
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- 230000008901 benefit Effects 0.000 description 3
- -1 diopside Chemical compound 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
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- 238000009628 steelmaking Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- NWXHSRDXUJENGJ-UHFFFAOYSA-N calcium;magnesium;dioxido(oxo)silane Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O NWXHSRDXUJENGJ-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
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- 229910052637 diopside Inorganic materials 0.000 description 1
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- 229910052598 goethite Inorganic materials 0.000 description 1
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- AEIXRCIKZIZYPM-UHFFFAOYSA-M hydroxy(oxo)iron Chemical compound [O][Fe]O AEIXRCIKZIZYPM-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
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- 150000002739 metals Chemical class 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
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- 238000011946 reduction process Methods 0.000 description 1
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- 229910052889 tremolite Inorganic materials 0.000 description 1
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- 238000003911 water pollution Methods 0.000 description 1
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Abstract
The present invention relates to a kind of microwave combustion method that utilizes reduce containing bloodstone material and carry out device and the magnetic selection method of magnetic separation, this device comprises feed bin, screw(-type) feeder, star-shaped feeding machine, pre-thermal reaction furnace and microwave magnetic separator; Add feed bin by after crushing material during magnetic separation, powder enters pre-thermal reaction furnace preheating through screw(-type) feeder, star-shaped feeding machine, and the powder after preheating enters microwave magnetic separator through blast pipe and carries out microwave combustion method and magnetic separation; Product after magnetic separation is discharged by discharging opening through ore discharge pipe, and unclassified stores is discharged by discharge gate through discharge pipe.The present invention is by the Fe of heating using microwave by the weak magnetic in material
2o
3be reduced to ferromagnetic Fe
3o
4, selected by iron ore concentrate by magnetic separation, reduction, magnetic separation integration are carried out simultaneously, and equipment is simple, small investment, and energy consumption is low, and treating capacity is large; Using water wisely, without atmosphere pollution, can process the multiple material containing bloodstone, comprise the ores such as slag, low-grade limonite, iron ore, applied range, has good promotion prospect.
Description
Technical field
The present invention relates to a kind of separation containing the concentration equipment of bloodstone material and magnetic selection method, particularly relate to and a kind ofly utilize microwave combustion method to reduce containing bloodstone material and carry out device and the magnetic selection method of magnetic separation.
Background technology
Slag is the waste residue produced in steelmaking process, and quantity is about 15 ~ 20% of output of steel.In recent years, along with the develop rapidly of China's steel and iron industry, the discharge capacity of slag also increases thereupon.A large amount of slags all needs large area soil to stack every year, all brings serious pollution, even constitute a threat to the health of people to soil, water body, air etc.But in fact in slag, useful component accounts for the overwhelming majority, as long as the harmful components in removing slag just can fully utilize.Each big steel enterprise of China has started the disposal and utilization of slag since eighties of last century eighties, but is only limited to fragmentation, sieves and selects iron, and up to the present, the utilization rate of slag is less than 80%.If utilize carbon thermal reduction technology by the phosphorus in slag, sulphur removes and by metal recovery useful to iron, manganese etc., other composition then can be used more effectively, thus greatly improve the value of slag.But the iron major part in slag is with Fe
2o
3form exist, common magnetic selection method is difficult to select, and therefore only has the Fe of magnetic weak in slag
2o
3be reduced to ferromagnetic Fe
3o
4, could be used through magnetic separation.
Along with the progress of society's science and technology, resources requirement constantly increases, and the iron ore deposit of existing rich ore and easily choosing reduces gradually.At the low-grade limonite that China still has a collection of reserves very large, limonite is a kind of moisture ferric oxide ore, and its chemical formula is nFe
2o
3 .mH
2o (n=1 ~ 3, m=1 ~ 4), this ore deposit is actually and is made up of goethite, liquid drugs injection iron ore and the mixture containing the iron oxide of the different crystallization water and shale material etc., there is weak magnetic, symbiosis component is many, the silicate such as diopside, tremolite gangue mineral impurity content is high, be difficult to it to be effectively separated with gangue by conventional beneficiation method, bring very large difficulty to the melting of iron.By this kind of complicated difficult ore dressing by magnetizing roast, making it be converted into magnetic iron ore, then carry out being separated with gangue mineral, is the most effective separation method.
Traditional magnetizing roast adopts reducing agent that bloodstone is reduced into magnetic iron ore.The equipment realizing said method mainly contains shaft furnace, rotary kiln and fluidized bed furnace etc., the shortcomings such as but these equipment exist, and heat transfer coefficient is low, the recovery time is long, cause device structure and correlation technique not to pass a test, not only reduction roasting is second-rate, and equipment is doted on greatly, complex structure, energy consumption is high, and disposal ability is low, and in tail gas, dustiness is large, dust collecting system is complicated, invests also large.From the angle of environmental protection and the utilization of resources, reclaiming the technology of the metals such as iron in exploitation slag, utilizing scope more widely by making the slag of process have, to increase Business Economic Benefit, there is good far-reaching significance and realistic meaning.
Summary of the invention
Technical problem to be solved by this invention: not enough for prior art, provides that a kind of equipment is simple, energy consumption is low, can process microwave reduction concentration equipment containing bloodstone material continuously;
Additionally provide a kind of microwave reduction containing the magnetic selection method of bloodstone material, reduction, magnetic separation integration are carried out by the method, have that magnetic separation is fast, yield is high, sort the advantages such as purity is high, assorting room is pollution-free.
technical scheme of the present invention:
Utilize microwave reduction to contain a concentration equipment for bloodstone material, this device comprises feed bin, screw(-type) feeder, star-shaped feeding machine, pre-thermal reaction furnace and microwave magnetic separator; Described microwave magnetic separator comprises reactor shell, reactor inner chamber, blast pipe, discharge pipe, ore discharge pipe and microwave source, magnetic system, described blast pipe is communicated with the lower end of reactor inner chamber, discharge pipe is communicated with the upper end of reactor inner chamber, and the below of reactor inner chamber is also provided with ore discharge valve; Microwave source and magnetic system are evenly arranged in the outside of reactor shell, and the upper and lower of described microwave magnetic separator is respectively equipped with discharge gate and discharging opening.
The bottom of described pre-thermal reaction furnace communicates with combustion chamber, after the mixing of air that the combustion gas of combustion gas storage tank and air blast are blown into through burner in combustion chambers burn, the CO high-temperature gas produced after burning enters from the bottom of pre-thermal reaction furnace.
Insulation material is provided with between described reactor inner chamber and reactor shell.
Described microwave source is all connected with PLC control circuit with magnetic system, and described reactor inner chamber is hollow cylindrical, adopts aluminium oxide material to make; Be provided with thermocouple in reactor inner chamber, thermocouple is connected with PLC control circuit.
Described PLC control circuit contains touch-screen, and touch-screen is connected with PLC control circuit respectively by data/address bus; Described PLC control circuit contains the hand switch and signal acquisition circuit that are connected with input.
Utilize concentration equipment magnetic separation containing the method for bloodstone material, comprise the material utilizing microwave reduction to contain bloodstone, concrete steps are:
By crushing material to the 80 ~ 100 object powder containing bloodstone, add feed bin, powder enters pre-thermal reaction furnace preheating through screw(-type) feeder, star-shaped feeding machine, and the powder after preheating enters microwave magnetic separator through blast pipe and carries out microwave combustion method and magnetic separation; Product after magnetic separation is discharged by discharging opening through ore discharge pipe, and unclassified stores is discharged by discharge gate through discharge pipe.
Described preheating is that powder is heated to 300 ~ 400 DEG C; The temperature of described microwave combustion method is 550 ~ 650 DEG C, is incubated 10 ~ 20min at this temperature, and microwave power is 15-20KW.
During described magnetic separation, the magnetic field intensity of reactor inner chamber is 55 ~ 80KA/m.
The present invention adopts heating using microwave to substitute traditional mode of heating, and traditional heating mode heats from outside to inside, and heat enters granule interior from particle top layer, the problem that particle certainly exists " cooled core " through conduction.Due to the existence of cooled core, after reaching reaction beginning temperature, only the outer high-temperature area of material has reactivity, therefore reaction rate is not high.Namely, under traditional heating mode, system temperature will exceed thermodynamics and start temperature a lot, and reaction could be carried out on a large scale.
Heating using microwave is quite different, and when particle has Microwave Absorption Properties, or certain composition in material particles is (as Fe
2o
3) when having stronger Microwave Absorption Properties, in microwave field, this particles all are subsequently heated, heat up simultaneously, and reach simultaneously or meet the beginning temperature of thermodynamical reaction.Namely start once reach thermodynamic condition reaction, reaction has the feature of simultaneity, uniformity simultaneously.
positive beneficial effect of the present invention:
1, concentration equipment of the present invention, can process continuously containing bloodstone (Fe
2o
3) material fine powder and other iron content fine powder, by the Fe of heating using microwave by weak for the major part in treating material magnetic
2o
3be reduced to ferromagnetic Fe
3o
4, and then by magnetic separation, iron ore concentrate is selected, reduction, magnetic separation integration are also carried out by the method simultaneously, and equipment is simple, and without the need to follow-up process equipment, small investment, energy consumption is low, and disposal ability is large.
2, concentration equipment of the present invention, adopts gas heating in reduction process, both make use of the cheap energy, has further provided reducing atmosphere, simultaneously for whole system provides transmitting power; The microwave source of microwave magnetic separator and the distribution of magnetic system rationally, are conducive to the purity improving efficiency of magnetic separation and product.
3, concentration equipment of the present invention controls to adopt touch-screen and PLC centralized Control, man-machine interactive operation, intuitively, equipment debugging is safeguarded simple, and it is convenient that technological parameter regulates, dependable performance, achieve the continuous prodution of Alternative step, improve automaticity and the craft precision of whole equipment, ensure that product quality, achieve industrial large-scale production, improve production efficiency.
4, magnetic selection method of the present invention, microwave is utilized to reduce to material, process material and microwave field interact, heating using microwave can heat up from material internal self entirety simultaneously, microwave is absorbed by material and is converted into heat energy, has that firing rate is fast, pollution-free, homogeneous heating, without advantages such as heat stagnations, heating using microwave simultaneously can accurately control, Reaction time shorten, economize energy.
5, magnetic selection method of the present invention, carries out preheating by gas heating, both make use of the cheap energy in reduction reaction process, further provide reducing atmosphere, simultaneously for whole system provides transmitting power, then utilize microwave combustion method to reduce to material, the energy is fully used.
6, magnetic selection method of the present invention, technique is simple, and fast, fully, comprehensively, treating capacity is large in magnetic separation, and whole process does not need, with water, thus can not cause water pollutions, using water wisely completely, and mine tailing is outer row after dedusting, without atmosphere pollution.
7, concentration equipment of the present invention and magnetic selection method can process multiple containing bloodstone (Fe
2o
3) material, comprise the ores such as slag, low-grade limonite, iron ore, the scope of application is wide, and this invention has application prospect more widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of concentration equipment of the present invention;
Fig. 2 is one of structural representation of microwave magnetic separator of the present invention;
Fig. 3 is the structural representation two of microwave magnetic separator of the present invention;
Fig. 4 is magnetic separation process schematic flow sheet of the present invention.
In figure, 1 is feed bin, and 2 is screw(-type) feeder, and 3 is star-shaped feeding machine, 4 is combustion chamber, 5 pre-thermal reaction furnace, and 6 is microwave magnetic separator, and 6-1 is reactor shell, 6-2 is reactor inner chamber, and 6-3 is insulation material, and 6-4 is blast pipe, and 6-5 is discharge pipe, 6-6 is ore discharge pipe, and 6-7 is ore discharge valve, and 7 is microwave source, 8 is magnetic system, and 9 is combustion gas storage tank, and 10 is air blast, 11 is burner, and 12 is discharging opening, and 13 is discharge gate.
Detailed description of the invention
Embodiment one: see Fig. 1-Fig. 3, microwave reduction, containing the concentration equipment of bloodstone material, comprises feed bin 1, screw(-type) feeder 2, star-shaped feeding machine 3, pre-thermal reaction furnace 5 and microwave magnetic separator 6; The upper and lower of microwave magnetic separator 6 is respectively equipped with discharge gate 13 and discharging opening 12; The bottom of pre-thermal reaction furnace 5 communicates with combustion chamber 4, and burn in combustion chamber 4 through burner 11 after the air mixing that the combustion gas in combustion gas storage tank 9 and air blast 10 are blown into, the CO high-temperature gas produced after burning enters from the bottom of pre-thermal reaction furnace 5.
Microwave magnetic separator 6 comprises: reactor shell 6-1, reactor inner chamber 6-2, blast pipe 6-4, discharge pipe 6-5, ore discharge pipe 6-6 and microwave source 7, magnetic system 8, described blast pipe 6-4 is communicated with the lower end of reactor inner chamber 6-2, discharge pipe 6-5 is communicated with the upper end of reactor inner chamber 6-2, and the below of reactor inner chamber 6-2 is also provided with ore discharge pipe 6-6 and ore discharge valve 6-7; Between reactor inner chamber 6-2 and reactor shell 6-1, be provided with insulation material 6-3, microwave source 7 and magnetic system 8 are evenly arranged in the outside of reactor shell 6-1.
Microwave source 7 is all connected with PLC control circuit with magnetic system 8, and reactor inner chamber 6-2 is hollow cylindrical, adopts aluminium oxide material to make; Be provided with thermocouple in reactor inner chamber 6-2, thermocouple is connected with PLC control circuit.PLC control circuit contains touch-screen, and touch-screen is connected with PLC control circuit respectively by data/address bus; PLC control circuit contains the hand switch and signal acquisition circuit that are connected with input.
Embodiment two: see Fig. 4, utilizes the concentration equipment magnetic separation of example one containing bloodstone (Fe
2o
3) method of material, comprise the following steps:
Containing bloodstone crushing material to 80 ~ 100 object powder, will add feed bin 1, powder enters the preheating of pre-thermal reaction furnace 5 through screw(-type) feeder 2, star-shaped feeding machine 3, and the powder after preheating enters microwave magnetic separator 6 through blast pipe 6-4 and carries out microwave combustion method and magnetic separation; Product after magnetic separation is discharged by discharging opening 12 through ore discharge pipe 6-6, and unclassified stores is discharged by discharge gate 13 through discharge pipe 6-5; Or first discharged by discharge gate again through dedusting.
Wherein containing the material of bloodstone, can be the ores such as slag, low-grade limonite, iron ore.
Described preheating makes powder be heated to 300 ~ 400 DEG C; Microwave power is 15-20KW, and the temperature of microwave combustion method is 550 ~ 650 DEG C, is incubated 10 ~ 20min at this temperature; During magnetic separation, the magnetic field intensity of reactor inner chamber 6-2 is 55 ~ 80KA/m.
Close ore discharge valve 6-7 when reacting completely, the magnetic-particle be adsorbed on the wall of microwave reactor inner chamber 6-2 limit is discharged along ore discharge pipe 6-6.
Embodiment three: see Fig. 4, utilizes the method for concentration equipment steel slag magnetically dressing, and the concentration equipment of employing is as described in example one, and the method comprises the following steps:
Steel-making slag powder is broken into 80 ~ 100 object powders, metering 100kg powder adds feed bin 1, and the powder in feed bin 1, through screw(-type) feeder 2, star-shaped feeding machine 3, enters pre-thermal reaction furnace 5 and carries out preheating;
The air that combustion gas in regulating gas storage tank 9 and air blast 10 are blown into, burns in combustion chamber 4 after burner 11 mixes, and the CO high-temperature gas produced after burning enters bottom pre-thermal reaction furnace 5, carries out preheating to material;
Enter microwave magnetic separator 6 through blast pipe 6-4 after material after preheating reaches 300 DEG C and carry out microwave combustion method, microwave power is 15KW, and open magnetic system 8 when regulating microwave output power to make temperature of charge reach 550 DEG C, setting magnetic field intensity is 60KA/m, is incubated 10 minutes; Magnetic separation is carried out, the material after discharge gate 13 collects magnetic separation to while slag reduction; Then close ore discharge valve 6-7 and magnetic system 8, collect the product of discharging at discharging opening 12.Then next circulation is started.
Out material after magnetic separation can return feed bin 1, carries out second time reduction, magnetic separation, makes reaction more complete.Most of bloodstone in slag is reduced to magnetic iron ore by the method, per hourly processes 100-300kg slag, and the grade obtaining iron ore concentrate is that 60-70%(quality is containing percentage), the rate of recovery can reach 50-60%.
Embodiment four: see Fig. 4, utilizes the method for the low-grade limonite of concentration equipment magnetic separation, and concentration equipment is as described in example one, and the method comprises the following steps:
Brown ocher is broken to 80 ~ 100 object powders, metering 100kg powder adds feed bin, and the powder in feed bin, through screw(-type) feeder, star-shaped feeding machine, enters pre-thermal reaction furnace and carries out preheating;
The air that combustion gas in regulating gas device and air blast are blown into, in combustion chambers burn after burner mixing, the CO high-temperature gas produced after burning enters bottom pre-thermal reaction furnace, carries out preheating to material;
Enter microwave magnetic separator through blast pipe after material after preheating reaches 400 DEG C and carry out microwave combustion method, microwave power is 20KW, and open magnetic system when regulating microwave output power to make temperature of charge reach 650 DEG C, setting magnetic field intensity is 75KA/m, is incubated 10 minutes; Magnetic separation is carried out, the material after discharge gate collects magnetic separation to while limonite reduction; Then close ore discharge valve and magnetic system, collect the product of discharging at discharging opening; Then next circulation is started.
After magnetic separation, material out can return feed bin 1, carries out second time reduction, magnetic separation, makes reaction more complete.Most of bloodstone in limonite is reduced to magnetic iron ore by the method, per hourly processes 100-300kg limonite, and the iron concentrate grade of acquisition is that 70-80%(quality is containing percentage), the rate of recovery can reach 55-65%.
Claims (5)
1. utilize microwave reduction to contain a concentration equipment for bloodstone material, this device comprises feed bin (1), screw(-type) feeder (2), star-shaped feeding machine (3), pre-thermal reaction furnace (5) and microwave magnetic separator (6), described microwave magnetic separator (6) comprises reactor shell (6-1), reactor inner chamber (6-2), blast pipe (6-4), discharge pipe (6-5), ore discharge pipe (6-6) and microwave source (7), magnetic system (8), described blast pipe (6-4) is communicated with the lower end of reactor inner chamber (6-2), discharge pipe (6-5) is communicated with the upper end of reactor inner chamber (6-2), and the below of reactor inner chamber (6-2) is also provided with ore discharge valve (6-7), microwave source (7) and magnetic system (8) are evenly arranged in the outside of reactor shell (6-1), described microwave magnetic separator (6) upper, below is respectively equipped with discharge gate (13) and discharging opening (12), it is characterized in that: this device also comprises combustion chamber (4), combustion gas storage tank (9), air blast (10) and burner (11), the bottom of described pre-thermal reaction furnace (5) communicates with combustion chamber (4), burn in combustion chamber (4) through burner (11) after the air mixing that the combustion gas of combustion gas storage tank (9) and air blast (10) are blown into, the CO high-temperature gas produced after burning enters from the bottom of pre-thermal reaction furnace (5).
2. concentration equipment as claimed in claim 1, is characterized in that: between described reactor inner chamber (6-2) and reactor shell (6-1), be provided with insulation material (6-3).
3. concentration equipment as claimed in claim 1, it is characterized in that: described microwave source (7) is all connected with PLC control circuit with magnetic system (8), described reactor inner chamber (6-2) is hollow cylindrical, adopts aluminium oxide material to make; Be provided with thermocouple in reactor inner chamber (6-2), thermocouple is connected with PLC control circuit.
4. concentration equipment as claimed in claim 3, is characterized in that: described PLC control circuit contains touch-screen, and touch-screen is connected with PLC control circuit respectively by data/address bus; Described PLC control circuit contains the hand switch and signal acquisition circuit that are connected with input.
5. utilize the method for concentration equipment magnetic separation containing bloodstone material for any one of claim 1-4, comprise the material utilizing microwave reduction to contain bloodstone, it is characterized in that:
By crushing material to the 80 ~ 100 object powder containing bloodstone, add feed bin (1), powder enters pre-thermal reaction furnace (5) preheating through screw(-type) feeder (2), star-shaped feeding machine (3), and the powder after preheating enters microwave magnetic separator (6) through blast pipe (6-4) and carries out microwave combustion method and magnetic separation; Product after magnetic separation is discharged by discharging opening (12) through ore discharge pipe (6-6), and unclassified stores is discharged by discharge gate (13) through discharge pipe (6-5); Described preheating is that powder is heated to 300 ~ 400 DEG C; The temperature of described microwave combustion method is 550 ~ 650 DEG C, is incubated 10 ~ 20min at this temperature, and microwave power is 15-20KW; During described magnetic separation, the magnetic field intensity of reactor inner chamber is 55 ~ 80KA/m.
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| CN105219972A (en) * | 2015-10-30 | 2016-01-06 | 北方民族大学 | A kind of method utilizing high-carbon content flyash to reclaim iron in slag |
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| CN112846182B (en) * | 2021-01-13 | 2023-03-17 | 内蒙古科技大学 | Method for microwave in-situ synthesis of iron-based metal ceramic and iron-based metal ceramic |
| CN114686687B (en) * | 2022-03-09 | 2024-05-07 | 山东产研绿洲环境产业技术研究院有限公司 | Ilmenite microwave titanium enrichment device and microwave titanium enrichment method |
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| US3463310A (en) * | 1968-02-27 | 1969-08-26 | Us Interior | Separation method |
| CN1733943A (en) * | 2004-08-10 | 2006-02-15 | 孔凡逸 | Method and device for manufacturing reduced iron using microwave fluid bed |
| CN101121959A (en) * | 2007-08-30 | 2008-02-13 | 太原理工大学 | Microwave roasting dry type wind magnetic selection method for hematite powder |
| CN102534264A (en) * | 2012-02-24 | 2012-07-04 | 湖南阳东微波科技有限公司 | Technique for producing and reducing ilmenite in industrial microwave kiln |
| CN102978380A (en) * | 2012-12-06 | 2013-03-20 | 内蒙古科技大学 | Method for producing iron ore concentrate by microwave roasting of limonite and gas mud |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6923328B2 (en) * | 2002-02-22 | 2005-08-02 | Wave Separation Technologies Llc | Method and apparatus for separating metal values |
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| US3463310A (en) * | 1968-02-27 | 1969-08-26 | Us Interior | Separation method |
| CN1733943A (en) * | 2004-08-10 | 2006-02-15 | 孔凡逸 | Method and device for manufacturing reduced iron using microwave fluid bed |
| CN101121959A (en) * | 2007-08-30 | 2008-02-13 | 太原理工大学 | Microwave roasting dry type wind magnetic selection method for hematite powder |
| CN102534264A (en) * | 2012-02-24 | 2012-07-04 | 湖南阳东微波科技有限公司 | Technique for producing and reducing ilmenite in industrial microwave kiln |
| CN102978380A (en) * | 2012-12-06 | 2013-03-20 | 内蒙古科技大学 | Method for producing iron ore concentrate by microwave roasting of limonite and gas mud |
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