CN110369123A - A kind of deironing apparatus and technique of refractory material fine powder - Google Patents
A kind of deironing apparatus and technique of refractory material fine powder Download PDFInfo
- Publication number
- CN110369123A CN110369123A CN201910802256.7A CN201910802256A CN110369123A CN 110369123 A CN110369123 A CN 110369123A CN 201910802256 A CN201910802256 A CN 201910802256A CN 110369123 A CN110369123 A CN 110369123A
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- China
- Prior art keywords
- fine powder
- refractory material
- distribution plate
- air distribution
- material fine
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- 239000011819 refractory material Substances 0.000 title claims abstract description 59
- 239000000843 powder Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000009826 distribution Methods 0.000 claims abstract description 41
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052742 iron Inorganic materials 0.000 claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 239000003517 fume Substances 0.000 claims abstract description 13
- 238000009835 boiling Methods 0.000 claims abstract description 12
- 239000000779 smoke Substances 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000012716 precipitator Substances 0.000 claims description 4
- 238000007885 magnetic separation Methods 0.000 claims description 2
- 230000032258 transport Effects 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 9
- 239000003546 flue gas Substances 0.000 abstract description 9
- 230000005291 magnetic effect Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 18
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000001354 calcination Methods 0.000 description 4
- 230000003447 ipsilateral effect Effects 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 229940037003 alum Drugs 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/005—Pretreatment specially adapted for magnetic separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/005—Pretreatment specially adapted for magnetic separation
- B03C1/015—Pretreatment specially adapted for magnetic separation by chemical treatment imparting magnetic properties to the material to be separated, e.g. roasting, reduction, oxidation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/16—Magnetic separation acting directly on the substance being separated with material carriers in the form of belts
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses the deironing apparatus and technique of a kind of refractory material fine powder, the device includes fluidized bed furnace, fluidized bed furnace is equipped with the smoke outlet for excluding furnace gas from top to bottom, for receiving the feed inlet of refractory material fine powder, and the discharge port excluded for the refractory material fine powder after restoring, air distribution plate is equipped in fluidized bed furnace, air distribution plate is located at below discharge port, fluidized bed furnace part on air distribution plate and air distribution plate surrounds boiling cavity, fluidized bed furnace part under air distribution plate and air distribution plate surrounds inlet chamber, the gas inlet for conveying hot fume into boiling cavity is equipped on inlet chamber；It is successively arranged the first conveying mechanism, cooling body, second conveyor structure, ball mill after discharge port and removes ferromagnetic roller.Refractory material fine powder of the present invention by iron content higher than 5% is placed in fluidized bed furnace, and the flue gas being passed through in fluidized bed furnace not less than 750 DEG C forms reducing atmosphere, makes to be reduced to can be used the fe that magnetic roller is removed except iron mode under the iron oxide reducing atmosphere in refractory material fine powder.
Description
Technical field
The invention belongs to technical field of refractory materials, are related to the deironing apparatus and technique of a kind of refractory material fine powder.
Background technique
It is well known that it is all ferro-aluminum mineral intergrowth that the bauxite ore in China is most of, and in the calcination process of entire aluminium alum mine
In, current technique is completed in oxidation environment, this allows for iron exists in the form of iron oxide always in aluminium alum mine,
This allows for be completed in the way of magnetic deironing except iron, this allows for finished product --- the iron tramp in refractory material fine powder
It not can be removed, once the iron-content in refractory material fine powder is more than 5%, will seriously affect the performance of refractory material fine powder.If sharp
The mode of iron oxide in refractory material fine powder is impregnated with pickling to complete to remove iron, not only complex process, increased costs, cause it is serious
Blowdown, it is often more important that its effective component changes after most of refractory material fine powder pickling, loses refractory material itself
Attribute.This allows for the higher mining raw material of iron-content in the mining raw material of refractory material and is unable to get effective use, causes
A large amount of wastes of production of resources.
Summary of the invention
It is higher in order to solve iron content in existing refractory material fine powder, it is difficult to the problem of removing and utilizing, the present invention
The deironing apparatus and technique of a kind of refractory material fine powder are disclosed, the refractory material fine powder by iron content in finished product higher than 5-8% is set
In fluidized bed furnace, and the flue gas being passed through in fluidized bed furnace not less than 750 DEG C forms reducing atmosphere, makes the oxidation in refractory material fine powder
It is reduced to fe under iron reducing atmosphere, iron is removed so as to remove iron mode using magnetic roller.
The technical scheme of the present invention is realized as follows:
On the one hand, the invention discloses a kind of deironing apparatus of refractory material fine powder, including fluidized bed furnace, the fluidized bed furnace from upper and
Have the smoke outlet for excluding furnace gas, the feed inlet for receiving refractory material fine powder and for resistance to after restoring
The discharge port that fiery fine material powder excludes is equipped with air distribution plate in the fluidized bed furnace, and the air distribution plate is located at below discharge port, described
Fluidized bed furnace part on air distribution plate and air distribution plate surrounds boiling cavity, and the air distribution plate is enclosed with the fluidized bed furnace part under air distribution plate
At inlet chamber, the gas inlet for conveying hot fume into boiling cavity is equipped on the inlet chamber；After the discharge port
It is successively arranged the first conveying mechanism, cooling body, second conveyor structure, ball mill and removes ferromagnetic roller.
As a further improvement, in order to make that the refractory material fine powder in fluidized bed furnace boils more sufficiently, the smoke outlet and
Discharge port is located at opposite side that is ipsilateral, and being located at feed inlet, and further, the gas inlet and feed inlet are ipsilateral.
It is further improved, striker plate is staggeredly equipped in the fluidized bed furnace, for preventing the material in fluidized bed furnace with cigarette
Gas discharge.
The smoke outlet is connected to by smoke exhaust pipe with gravitational precipitator as a preferred implementation manner, the cigarette after dedusting
Gas burns for heating furnace to be used.Further, the gas inlet is connected to the gas outlet of heating furnace, the air inlet of the heating furnace
Mouth is connected to booster fan, and the flue gas after dedusting is introduced into heating furnace burning by booster fan, is not less than 750 DEG C to generate
Hot fume restore the iron oxide in refractory material fine powder, realize recycling for flue gas.
Preferably, the feed inlet is connected to the discharge port of star-shaped dust-discharging valve, naturally it is also possible to can be realized by other
Any doffer of powder material conveying is realized.
Further, first and second conveying mechanism is screw conveyor or conveyor belt, naturally it is also possible to be other energy
Enough realize any conveying mechanism of solid-state high-temperature material conveying；The cooling body be water cooling tank, be also possible to it is other can
Realize the cooling other any cooling bodies of solid-state high-temperature material.
On the other hand, the invention also discloses a kind of deferrization process of refractory material fine powder, to the upper of fluidized bed furnace air distribution plate
Refractory material fine powder is added in side, the hot fume not less than 750 DEG C is passed through below air distribution plate, by the refractory material above air distribution plate
Iron oxide in fine powder is reduced to fe, and the refractory material fine powder for then transporting out boiling fire grate is through cooling, crushing, magnetic
Blanking iron obtains finished product.
Since a small amount of impurity iron in mining raw material is oxidized to iron oxide together during calcining, iron oxide will be mixed
It is miscellaneous not can be removed in finished product so that its iron content is exceeded, seriously affect the quality of finished product, it is of the invention except iron operation be by by
The unqualified refractory material fine powder of excessive iron calcining into raw iron oxide is calcined in fluidized bed furnace in mining raw material, by fire resisting
The iron oxide that not can be removed originally in fine material powder is reduced into fe again.
The hot fume temperature that heating furnace is supplied to fluidized bed furnace in the present invention is controlled at 750 DEG C or more, logical in air distribution plate lower part
Enter hot fume, makes reducibility gas CO and H in the flue gas in boiling cavity2Temperature at 700 DEG C or more, air distribution plate top it is resistance to
Fiery fine material powder hot fume advertise effect under, make Fe2O3It can be with CO, H2Reaction generates Fe, and entire reduction process Fe2O3
Reaction complete under reducing atmosphere.Fe will not be oxidized during sealing water is cooling, make to produce the middle and later periods always
The ingredient of fe is kept, the iron in refractory material fine powder can be removed conducive to magnetic roller, and ball mill grinds thinner, taken off
Except effect is better, in refractory material fine powder 95% or more iron can be removed substantially, can satisfy in refractory material iron content not
Effect more than 1%.
Compared with prior art, the present invention having the following beneficial effects:
(1) present invention can will be because of the excessively high and underproof refractory material fine powder of iron-content next life according to the technical solution of the present invention
Qualified refractory material finished product is produced, without considering the iron-content of raw mineral materials, the higher raw mineral materials of Fe content can also be exploited
It uses, greatly reduces the cost of raw material, reduce cost of winning and difficulty comprising the raw mineral materials including aluminium alum mine, save
About extraction value is the technological revolution and breakthrough of refractory material production；
(2) it is exactly that transformation can be completed using original process conditions and equipment that technique of the invention and equipment, which are improved, invest at
This is low, more environmentally friendly using safe and effective, and using closing production；
(3) present invention is not only used in fire resisting material field, impurity iron can also be generated iron oxide in other calcination process
And carry out operating except iron in the industry that do not can be removed, the program is easy to operate, is particularly suitable for China's raw mineral materials complicated component, product
Characteristic more than kind has great dissemination.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the process flow chart of the embodiment of the present invention.
In figure: 1, fluidized bed furnace；2, air distribution plate；3, gravitational precipitator；4, heating furnace；5, booster fan；6, star-like to unload ash
Valve；7, screw conveyor；8, water cooling tank；9, conveyor belt；10, ball mill；11, ferromagnetic roller is removed；12, striker plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment
The deironing apparatus of refractory material fine powder as shown in Figure 1, including fluidized bed furnace 1, the fluidized bed furnace 1 are equipped with from top to bottom
For excluding the smoke outlet of furnace gas, the feed inlet for receiving refractory material fine powder and for the refractory material after restoring
The discharge port that fine powder excludes is equipped with air distribution plate 2 in the fluidized bed furnace 1, and the air distribution plate 2 is located at below discharge port, the cloth
1 part of fluidized bed furnace on aerofoil 2 and air distribution plate 2 surrounds boiling cavity, the air distribution plate 2 and the fluidized bed furnace portion under air distribution plate 2
Divide and surround inlet chamber, the gas inlet for conveying hot fume into boiling cavity is equipped on the inlet chamber；The air distribution plate 2
It is obliquely installed, highest point is located at below feed inlet, and the minimum point of the air distribution plate is located at below discharge port；In order to make boiling cavity
Interior refractory material fine powder reaction more sufficiently efficiently, and prevent refractory material fine powder hot fume advertise boiling under not from charging
Mouth and discharge port are rushed out, and the smoke outlet is connected to by smoke exhaust pipe with gravitational precipitator 3, and the flue gas after dedusting is for heating furnace 4
Burning uses.The gas inlet is connected to the gas outlet of heating furnace 4, and the air inlet and booster fan 5 of the heating furnace 4 connect
It is logical, the flue gas after dedusting is introduced by heating furnace 4 by booster fan 5 and is burnt, is gone back with generating the hot fume not less than 750 DEG C
Iron oxide in former refractory material fine powder, realizes recycling for flue gas；The discharge port of the feed inlet and star-shaped dust-discharging valve 6 connects
It is logical；
It is equipped with the screw conveyor 7 for receiving and conveying material at the discharge port rear, is discharged in the screw conveyor 7
The lower section of mouth is equipped with the water cooling tank 8 for cooling down material, is equipped with conveyor belt 9 below the discharge port of the water cooling tank 8, leads to
It crosses conveyor belt 9 material is transported to ball mill 10 and material is crushed, then smashed material is placed in except ferromagnetic roller
It is carried out on 11 except iron.
As a further improvement, in order to prevent in fluidized bed furnace material year flue gas discharge, in the fluidized bed furnace be equipped with hand over
The striker plate 12 of mistake distribution；In order to make that the refractory material fine powder in fluidized bed furnace boils more sufficiently, the smoke outlet and discharge port
Positioned at ipsilateral, the gas inlet and feed inlet are ipsilateral, and discharge port is located at the opposite side of feed inlet.
Its technical process are as follows: refractory material fine powder is added to the top of 1 air distribution plate 2 of fluidized bed furnace, the lower section of air distribution plate 2 is passed through
Iron oxide in the refractory material fine powder of 2 top of air distribution plate is reduced to fe, then will by the hot fume not less than 750 DEG C
The refractory material fine powder that 1 row of fluidized bed furnace transports out obtains finished product through cooling, crushing, iron removal by magnetic separation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of deironing apparatus of refractory material fine powder, it is characterised in that: including fluidized bed furnace, the fluidized bed furnace is equipped with from top to bottom
For excluding the smoke outlet of furnace gas, the feed inlet for receiving refractory material fine powder and for the refractory material after restoring
The discharge port that fine powder excludes is equipped with air distribution plate in the fluidized bed furnace, and the air distribution plate is located at below discharge port, the air distribution plate
Boiling cavity is surrounded with the fluidized bed furnace part on air distribution plate, the fluidized bed furnace part under the air distribution plate and air distribution plate surrounds air inlet
Chamber is equipped with the gas inlet for conveying hot fume into boiling cavity on the inlet chamber；It is successively set after the discharge port
There are the first conveying mechanism, cooling body, second conveyor structure, ball mill and removes ferromagnetic roller.
2. the deironing apparatus of refractory material fine powder as described in claim 1, it is characterised in that: the air distribution plate is obliquely installed,
The highest point of the air distribution plate is located at below feed inlet, and the minimum point of the air distribution plate is located at below discharge port.
3. the deironing apparatus of refractory material fine powder as described in claim 1, it is characterised in that: staggeredly set in the fluidized bed furnace
It is equipped with striker plate.
4. the deironing apparatus of refractory material fine powder as described in claim 1, it is characterised in that: the smoke outlet passes through smoke exhaust pipe
It is connected to gravitational precipitator.
5. the deironing apparatus of refractory material fine powder as described in claim 1, it is characterised in that: the feed inlet unloads ash with star-like
The discharge port of valve is connected to.
6. the deironing apparatus of refractory material fine powder as described in claim 1, it is characterised in that: the gas inlet and heating furnace
Gas outlet connection, the air inlet of the heating furnace is connected to booster fan.
7. the deironing apparatus of refractory material fine powder as described in claim 1, it is characterised in that: first and second conveying mechanism
For screw conveyor or conveyor belt.
8. the deironing apparatus of refractory material fine powder as described in claim 1, it is characterised in that: the cooling body is cooling for water
Slot.
9. a kind of deferrization process of refractory material fine powder, it is characterised in that: refractory material is added to the top of fluidized bed furnace air distribution plate
Fine powder is passed through the hot fume not less than 750 DEG C below air distribution plate, by the iron oxide in the refractory material fine powder above air distribution plate
It is reduced to fe, the refractory material fine powder that fire grate transports out that then will boil is obtained into through cooling, crushing, iron removal by magnetic separation
Product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802256.7A CN110369123A (en) | 2019-08-28 | 2019-08-28 | A kind of deironing apparatus and technique of refractory material fine powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802256.7A CN110369123A (en) | 2019-08-28 | 2019-08-28 | A kind of deironing apparatus and technique of refractory material fine powder |
Publications (1)
| Publication Number | Publication Date |
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| CN110369123A true CN110369123A (en) | 2019-10-25 |
Family
ID=68261151
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910802256.7A Pending CN110369123A (en) | 2019-08-28 | 2019-08-28 | A kind of deironing apparatus and technique of refractory material fine powder |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114408980A (en) * | 2022-02-11 | 2022-04-29 | 长沙有色冶金设计研究院有限公司 | Preparation method and equipment of demanganizing agent |
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| GB922019A (en) * | 1960-01-11 | 1963-03-27 | Exxon Research Engineering Co | Iron ore magnetic roast process |
| GB1288252A (en) * | 1969-03-25 | 1972-09-06 | ||
| CN102653821A (en) * | 2012-04-27 | 2012-09-05 | 洛阳栾川钼业集团股份有限公司 | Fluidized bed furnace device for circularly roasting molybdenum concentrates and method for using same |
| CN203718760U (en) * | 2014-02-28 | 2014-07-16 | 大理州大维肥业有限责任公司 | Boiling furnace |
| CN107460307A (en) * | 2017-07-19 | 2017-12-12 | 东北大学 | A kind of high-iron bauxite suspension roasting utilization system and method |
| CN108588406A (en) * | 2018-06-15 | 2018-09-28 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of refractory iron ore suspension heating-coal base magnetic roasting process |
| CN210585357U (en) * | 2019-08-28 | 2020-05-22 | 山西惟泰安全环保工程技术有限公司 | Deironing device of refractory material fine powder |
-
2019
- 2019-08-28 CN CN201910802256.7A patent/CN110369123A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB922019A (en) * | 1960-01-11 | 1963-03-27 | Exxon Research Engineering Co | Iron ore magnetic roast process |
| GB1288252A (en) * | 1969-03-25 | 1972-09-06 | ||
| CN102653821A (en) * | 2012-04-27 | 2012-09-05 | 洛阳栾川钼业集团股份有限公司 | Fluidized bed furnace device for circularly roasting molybdenum concentrates and method for using same |
| CN203718760U (en) * | 2014-02-28 | 2014-07-16 | 大理州大维肥业有限责任公司 | Boiling furnace |
| CN107460307A (en) * | 2017-07-19 | 2017-12-12 | 东北大学 | A kind of high-iron bauxite suspension roasting utilization system and method |
| CN108588406A (en) * | 2018-06-15 | 2018-09-28 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of refractory iron ore suspension heating-coal base magnetic roasting process |
| CN210585357U (en) * | 2019-08-28 | 2020-05-22 | 山西惟泰安全环保工程技术有限公司 | Deironing device of refractory material fine powder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114408980A (en) * | 2022-02-11 | 2022-04-29 | 长沙有色冶金设计研究院有限公司 | Preparation method and equipment of demanganizing agent |
| CN114408980B (en) * | 2022-02-11 | 2024-06-04 | 长沙有色冶金设计研究院有限公司 | Preparation method and equipment of demanganizing agent |
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