CN104330435A - Measurement method of assimilation characteristics of iron ore powder - Google Patents
Measurement method of assimilation characteristics of iron ore powder Download PDFInfo
- Publication number
- CN104330435A CN104330435A CN201410603085.2A CN201410603085A CN104330435A CN 104330435 A CN104330435 A CN 104330435A CN 201410603085 A CN201410603085 A CN 201410603085A CN 104330435 A CN104330435 A CN 104330435A
- Authority
- CN
- China
- Prior art keywords
- iron ore
- ore powder
- assimilation
- cao
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a measurement method of assimilation characteristics of iron ore powder. The method comprises the following steps: (1) finely grinding ore powder; (2) pressing into CaO cakes; (3) fabricating an iron ore powder triangle cone; (4) putting iron ore powder cake samples on CaO cake samples, roasting the iron ore powder cake samples and the CaO cake samples on a high-purity corundum washer, wherein the roasting atmosphere is air; and meanwhile, images of the samples changing along with the temperature rise are captured online through an infrared camera; (5) by taking the melting condition of the iron ore powder triangle cone sample as the assimilation characteristic, determining temperatures for different iron ore powder to achieve the assimilation characteristic; and (6) setting the computational formula of the average assimilation rate index VA of the iron ore powder as VA=1/deltaTA*100, wherein the reaction speed of the iron ore powder and CaO can be really reflected by the average assimilation rate of the iron ore powder. The reaction condition of the iron ore powder and CaO can be really reflected; the assimilation temperature and the average assimilation rate of the iron ore powder can be conveniently and quickly determined; sample preparation is convenient; the experimental operation is safe and convenient; and the high-purity corundum washer can be repeatedly utilized.
Description
Technical field
The invention belongs to Iron Ore Powder feature measurement field, provide a kind of Iron Ore Powder to assimilate the measuring method of characteristic especially.
Background technology
High basicity sinter is used widely because of its excellent metallurgical performance, and the formation of its essential mineral compound calcium ferrite, starts from CaO and Fe
2o
3physical-chemical reaction.In addition, it is also the low-melting compound that the solid phase reaction starting from CaO and Iron Ore Powder generates that the liquid phase in sintering process generates.Therefore, the reaction capacity of Iron Ore Powder and CaO, namely the assimilation characteristic of Iron Ore Powder becomes the very important index of investigation iron ore powder sintering basic property of high temperature.
The assimilation characteristic of Iron Ore Powder refer to Iron Ore Powder in sintering process with the reaction capacity of CaO, its characterizes the complexity that Iron Ore Powder generates liquid phase in sintering process.If the assimilative capacity of Iron Ore Powder and CaO is excessively weak, then under normal sintering temperature and sintering time, because the amount of liquid phase produced is few, is unfavorable for that the fusing of sinter mixture is cohered, thus affects the consolidation strength of sintering deposit; Meanwhile, because more CaO allocated into by high basicity sinter, if the assimilative capacity of Iron Ore Powder is weak, with regard to likely because reaction not exclusively occurs CaO residue (being commonly called as white point), after its chance water, form Ca (OH)
2, cause sinter strength to reduce.For heterogeneous body sintering deposit, based on to the consolidation of sintering deposit and the consideration of permeability of sintering material bed, do not wish that the coarse grain ore as core ore crosses fractional melting, worsen to have avoided the minimizing of the core ore of consolidation skeleton function and permeability of sintering material bed and affect the Quality and yield of sintering deposit.Therefore, require that the assimilation characteristic of iron ore will be suitable for.
The method that the mensuration of the domestic and international assimilation characteristic for Iron Ore Powder is ununified at present, and the method in the past measuring Iron Ore Powder assimilation characteristic also exists the shortcomings such as experimental work amount is large, testing process is complicated.Research for Iron Ore Powder assimilation characteristic mainly contains following several method:
(1) the anabolic detection method of University of Science & Technology, Beijing's Wu Shengli etc., it is by levigate Iron Ore Powder and analyzes pure CaO reagent and make the little cake of CaO that the little cake of Iron Ore Powder that diameter is 8mm and diameter are 25mm under a certain pressure respectively, then by little for Iron Ore Powder cake sample and the little cake sample of CaO, put in a kind of compact sintering test equipment and according to certain temperature increasing schedule, sample is heated, judge that the method for Iron Ore Powder assimilation characteristic is the little cake of Iron Ore Powder and CaO little cake surface of contact to generate the compound that encloses slightly larger than the little cake one of Iron Ore Powder as assimilating feature, to reach the minimum assimilation temperature that the temperature of this assimilation feature is Iron Ore Powder, and the quality of Iron Ore Powder assimilation characteristic is evaluated with this.The method can only detect this kind of index of minimum assimilation temperature, truly can not reflect Iron Ore Powder and CaO reaction solution phase formation speed and amount of liquid phase; And the test of different temperatures must be attempted in experiment, its minimum assimilation temperature after being tested by several times, could be judged; And judge that assimilation is characterized as visual inspection, manual operation factor is inevitable.
(2) Wuhan Iron & Steel (Group) Corp. proposes " the anabolic method of testing of Iron Ore Powder and device thereof " (patent No.: CN201310456355.7), the method comprises the following steps: first Iron Ore Powder and lime are carried out roasting, simulation sintering process; Then the amount of lime of assimilation is measured; Finally obtain the assimilation quantity data of Iron Ore Powder by the amount of lime of assimilating and the Iron Ore Powder ratio assimilated between area, to characterize the anabolic of Iron Ore Powder.The shortcoming of the method is that the thickness measure of unreacted amount of lime and resultant of reaction should not be measured, and experimental technique is comparatively complicated.
(3) Capital Iron & Steel General Co proposes " a kind of measuring method of iron ore powder assimilation degree in sintering process " (patent No.: CN201110182115.3), by CaO reagent and Iron Ore Powder respectively by the first sample making apparatus, make-100 orders respectively, then in mixed sample device, mix 5-10 minute respectively; CaO reagent and Iron Ore Powder are made respectively in the second sample making apparatus the little cake of right cylinder of Φ 15mm*5mm and Φ 8mm*5mm; Then little for Iron Ore Powder cake is positioned over the little cake middle of CaO reagent, the two is put into sintering basic characteristic equipment and carries out simulation sintering testing experiment; The planimetric area in the assimilation region of the little cake of sample after usable floor area analyser test assimilation; With assimilating the area in region divided by the little cake initial area of Iron Ore Powder, obtain Iron Ore Powder assimilation extent index at such a temperature; Then, under changing to the sintering temperature of 1400 DEG C 900, test obtains the assimilation degree of Iron Ore Powder, draws out assimilation extent index-temperature curve.Assimilation extent index in the method actual response Iron Ore Powder can not assimilate characteristic, because the reaction mechanism of different Iron Ore Powder and CaO is not quite similar, the Iron Ore Powder that assimilation region area is little, it is anabolic not necessarily little.
(4) also have class methods to be that raw material is pressed into agglomerate, sinter at certain temperature and atmosphere, reacted the assimilation performance of Iron Ore Powder by the ore deposit phase composition detected in sintering deposit.Various raw meal is broken to below 0.125mm by FomioMATSLJNO and the Takeo HERA-DA of Japan, then mix and be pressed into the little cake of Φ 15mm*10mm, then be put in electric furnace be heated to temperature required after, cooling sampling, observes the ore deposit phase composition of sinter tablets finally by microscope, X-ray diffraction and electric EPMA.Various raw meal is broken to below 0.125mm by Taiwan's scholars Li-Heng, and mixing is pressed into the agglomerate of 6mm*6mm, is then put in electric furnace to be heated to temperature required, passes into N in roasting process
2, Air, CO, CO
2mixed gas simulates sintering atmosphere, then observes the ore deposit phase composition of sintered specimen.Similar method also has the research method etc. of BHP company C.E.LOO, these class methods need sintered specimen to be worn into the microstructure that sample observed by mating plate, therefore quick detection can not be realized, and due to sample continuous crystallize out in cooling procedure, sintering liquid phase ingredient constantly changes, and therefore this sample actual response Iron Ore Powder can not assimilate the situation generating liquid phase.
Therefore, above-mentioned Iron Ore Powder is anabolic detection method exist can not actual response iron ore powder in sintering process and CaO anabolic reaction, test detection means complexity, human factor affects the problems such as larger.
Summary of the invention
The present invention provides one intuitively easy for solving in known technology the technical matters that exists, detects fast, can the measuring method of Iron Ore Powder assimilation characteristic of science reaction Iron Ore Powder assimilation characteristic.
The technical scheme that the present invention takes for the technical matters existed in solution known technology is:
A measuring method for Iron Ore Powder assimilation characteristic, comprises the steps:
(1) fine grinding breeze: after breeze is dried 2h at 105 DEG C, with the levigate powder to 100 orders of pulverizing sampling machine in order to using;
(2) the little cake of CaO is suppressed: use balance to take 2g and analyze pure CaO, then on the small-sized sampling machine of diameter=20mm, pure for the analysis taken CaO is pressed into closely knit little cake;
(3) Iron Ore Powder pyrometric cone is made: utilize pyrometric cone mould iron ore fine powder to be pressed into the Iron Ore Powder pyrometric cone sample that height is 6mm for 18mm, the pyrometric cone bottom surface length of side;
(4) little for Iron Ore Powder cake sample is placed on the little cake sample of CaO, then the two is placed on high-purity corundum pad, put into hot plate stove and carry out roasting, calcination atmosphere is air atmosphere, catches sample online simultaneously raise and the image of change with temperature by thermal camera;
(5) with the melting conditions of Iron Ore Powder pyrometric cone sample for its assimilation feature, pyrometric cone starts the temperature T moved down
s, measure the temperature that different Iron Ore Powder reaches this assimilation feature, evaluate the assimilative capacity of different Iron Ore Powder with this;
(6) temperature T when disappearing completely with pyrometric cone
ddeduct the temperature T that pyrometric cone starts to move down
sfor Iron Ore Powder assimilation temperature range Δ T
a, obtain Iron Ore Powder on this basis and on average assimilate Rate Index V
a, its computing formula is as follows:
V
A＝1/ΔT
A*100
The average assimilation speed of Iron Ore Powder can the speed speed that reacts of actual response Iron Ore Powder and CaO, judges that Iron Ore Powder and CaO react the sensitivity to temperature with this.
Pressure when the little cake of described CaO is suppressed is 15MPa, dwell time 2.5min.
Temperature increasing schedule in described step (4) during roasting is:
The advantage that the present invention has and good effect are: the present invention can actual response Iron Ore Powder and CaO response situation, Iron Ore Powder assimilation temperature and average assimilation speed can be determined quickly and easily, sample preparation is convenient, experimental implementation safe ready, and high-purity corundum pad can reuse.
Accompanying drawing explanation
Fig. 1 is Iron Ore Powder pyrometric cone sample schematic diagram;
Sample situation of change image when Fig. 2 is roasting.
Embodiment:
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
A measuring method for Iron Ore Powder assimilation characteristic, comprises the steps:
(1) fine grinding breeze: after breeze is dried 2h at 105 DEG C, with the levigate powder to 100 orders of pulverizing sampling machine in order to using;
(2) suppress CaO little cake: use balance to take 2g and analyze pure CaO, be then 15MPa by pressure adjusting on the small-sized sampling machine of diameter=20mm, dwell time 2.5min, is pressed into closely knit little cake by pure for the analysis taken CaO;
(3) Iron Ore Powder pyrometric cone is made: utilize pyrometric cone mould iron ore fine powder to be pressed into the breeze pyrometric cone sample (as shown in Figure 1) that height is 6mm for 18mm, the pyrometric cone bottom surface length of side;
(4) little for Iron Ore Powder cake sample is placed on little cake sample, then the two is placed on high-purity corundum pad, put into hot plate stove and carry out roasting, calcination atmosphere is air atmosphere, catch sample online by thermal camera to raise and the image (as shown in Figure 2) of change with temperature, temperature increasing schedule is simultaneously:
(5) with the melting conditions of Iron Ore Powder pyrometric cone sample for its assimilation feature, pyrometric cone starts the temperature T moved down
s, measure the temperature that different Iron Ore Powder reaches this assimilation feature, evaluate the assimilative capacity of different Iron Ore Powder with this.
(6) temperature T when disappearing completely with pyrometric cone
ddeducting the temperature that pyrometric cone starts to move down is Iron Ore Powder assimilation temperature range Δ T
a, obtain Iron Ore Powder on this basis and on average assimilate Rate Index V
a, its computing formula is as follows:
V
A＝1/ΔT
A*100
The average assimilation speed of Iron Ore Powder can the speed speed that reacts of actual response Iron Ore Powder and CaO, judges that Iron Ore Powder and CaO react the sensitivity to temperature with this.
Compared with assimilating the detection technique of characteristic with above-mentioned existing mensuration Iron Ore Powder, the present invention can actual response Iron Ore Powder and CaO response situation, Iron Ore Powder assimilation temperature and average assimilation speed can be determined easily and fast, sample preparation is convenient, experimental implementation safe ready, and high-purity corundum pad can reuse.
Case study on implementation:
Carry out assimilation characteristic research for China's well-known steel enterprise sintering Iron Ore Powder used, obtain following experimental result:
Can find out, minimum assimilation temperature, the assimilation temperature range of different Iron Ore Powder are all not identical with average assimilation speed, three technical indicators of Integrated comparative assimilation characteristic, can find that powder and Brazilian OK a karaoke club in PB powder, South Brazil add the assimilation characteristic of this meal comparatively excellent, the production data obtained in conjunction with on-the-spot sintered material finds, there is obvious corresponding relation in assimilation characteristic index and sinter quality, carries out sintering feed proportioning optimization have actual directive function with this.
Above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, and those of ordinary skill in the field should be appreciated that and still can modify to the embodiment of invention or portion of techniques feature be carried out to equivalent replacement; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the technology of request of the present invention protection.
Claims (3)
1. a measuring method for Iron Ore Powder assimilation characteristic, is characterized in that, comprise the steps:
(1) fine grinding breeze: after breeze is dried 2h at 105 DEG C, with the levigate powder to 100 orders of pulverizing sampling machine in order to using;
(2) the little cake of CaO is suppressed: use balance to take 2g and analyze pure CaO, then on the small-sized sampling machine of diameter=20mm, pure for the analysis taken CaO is pressed into closely knit little cake;
(3) Iron Ore Powder pyrometric cone is made: utilize pyrometric cone mould iron ore fine powder to be pressed into the Iron Ore Powder pyrometric cone sample that height is 6mm for 18mm, the pyrometric cone bottom surface length of side;
(4) little for Iron Ore Powder cake sample is placed on the little cake sample of CaO, then the two is placed on high-purity corundum pad, put into hot plate stove and carry out roasting, calcination atmosphere is air atmosphere, catches sample online simultaneously raise and the image of change with temperature by thermal camera;
(5) with the melting conditions of Iron Ore Powder pyrometric cone sample for its assimilation feature, pyrometric cone starts the temperature T moved down
s, measure the temperature that different Iron Ore Powder reaches this assimilation feature, evaluate the assimilative capacity of different Iron Ore Powder with this;
(6) temperature T when disappearing completely with pyrometric cone
ddeduct the temperature T that pyrometric cone starts to move down
sfor Iron Ore Powder assimilation temperature range Δ T
a, obtain Iron Ore Powder on this basis and on average assimilate Rate Index V
a, its computing formula is as follows:
V
A＝1/ΔT
A*100
The average assimilation speed of Iron Ore Powder can the speed speed that reacts of actual response Iron Ore Powder and CaO, judges that Iron Ore Powder and CaO react the sensitivity to temperature with this.
2. the measuring method of a kind of Iron Ore Powder assimilation characteristic according to claim 1, it is characterized in that, pressure when the little cake of described CaO is suppressed is 15MPa, dwell time 2.5min.
3. the measuring method of a kind of Iron Ore Powder assimilation characteristic according to claim 1, it is characterized in that, temperature increasing schedule when carrying out roasting in described step (4) is:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603085.2A CN104330435A (en) | 2014-10-30 | 2014-10-30 | Measurement method of assimilation characteristics of iron ore powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603085.2A CN104330435A (en) | 2014-10-30 | 2014-10-30 | Measurement method of assimilation characteristics of iron ore powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104330435A true CN104330435A (en) | 2015-02-04 |
Family
ID=52405205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410603085.2A Pending CN104330435A (en) | 2014-10-30 | 2014-10-30 | Measurement method of assimilation characteristics of iron ore powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104330435A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908473A (en) * | 2017-04-18 | 2017-06-30 | 安徽工业大学 | It is a kind of to simulate the device and method that different atmosphere detection Iron Ore Powder assimilates temperature |
| CN108007960A (en) * | 2017-08-09 | 2018-05-08 | 安徽工业大学 | A kind of device and the detection method on anabolic reaction opportunity using electrical signal detection Iron Ore Powder assimilation temperature |
| CN109283214A (en) * | 2018-11-29 | 2019-01-29 | 安徽工业大学 | A kind of detection Iron Ore Powder assimilates the device of temperature and anabolic reaction speed |
| CN112694322A (en) * | 2021-01-28 | 2021-04-23 | 中冶赛迪技术研究中心有限公司 | Sintered body, preparation method thereof and characterization method of high-temperature spreading behavior |
| CN112782214A (en) * | 2020-11-25 | 2021-05-11 | 中南大学 | Method for measuring liquid phase generation characteristics in iron ore sintering process |
| CN113960102A (en) * | 2021-09-24 | 2022-01-21 | 宣化钢铁集团有限责任公司 | Method for measuring assimilation performance of iron ore powder |
| CN114486993A (en) * | 2021-12-28 | 2022-05-13 | 武钢集团昆明钢铁股份有限公司 | Method for detecting assimilation temperature of iron ore powder |
| CN116930231A (en) * | 2023-09-15 | 2023-10-24 | 太原海通智慧信息技术有限公司 | Cement material component online detection system and online detection method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1447787A (en) * | 1972-12-08 | 1976-09-02 | Jarvenpaa V J | Method and means for measuring temperatures relative to liquid solid phase boundaries of materials |
| JP2011069652A (en) * | 2009-09-24 | 2011-04-07 | National Institute For Materials Science | Method and device for simultaneously thermally analyzing a plurality of specimens |
| CN102023176A (en) * | 2010-12-13 | 2011-04-20 | 首钢总公司 | Method for acquiring high temperature characteristics of iron ore powder in sintering process |
| CN102288631A (en) * | 2011-06-30 | 2011-12-21 | 首钢总公司 | Method for measuring iron ore powder assimilation degree in sintering process |
| CN102809579A (en) * | 2012-07-23 | 2012-12-05 | 辽宁科技大学 | Method for detecting high-temperature mineralization characteristic of sintered iron ores |
| CN103529168A (en) * | 2013-09-29 | 2014-01-22 | 武汉钢铁(集团)公司 | Method and device for testing assimilability of iron ore powder |
-
2014
- 2014-10-30 CN CN201410603085.2A patent/CN104330435A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1447787A (en) * | 1972-12-08 | 1976-09-02 | Jarvenpaa V J | Method and means for measuring temperatures relative to liquid solid phase boundaries of materials |
| JP2011069652A (en) * | 2009-09-24 | 2011-04-07 | National Institute For Materials Science | Method and device for simultaneously thermally analyzing a plurality of specimens |
| CN102023176A (en) * | 2010-12-13 | 2011-04-20 | 首钢总公司 | Method for acquiring high temperature characteristics of iron ore powder in sintering process |
| CN102288631A (en) * | 2011-06-30 | 2011-12-21 | 首钢总公司 | Method for measuring iron ore powder assimilation degree in sintering process |
| CN102809579A (en) * | 2012-07-23 | 2012-12-05 | 辽宁科技大学 | Method for detecting high-temperature mineralization characteristic of sintered iron ores |
| CN103529168A (en) * | 2013-09-29 | 2014-01-22 | 武汉钢铁(集团)公司 | Method and device for testing assimilability of iron ore powder |
Non-Patent Citations (1)
| Title |
|---|
| "若干国内外铁矿粉的同化性试验研究": ""若干国内外铁矿粉的同化性试验研究"", 《过程工程学报》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908473A (en) * | 2017-04-18 | 2017-06-30 | 安徽工业大学 | It is a kind of to simulate the device and method that different atmosphere detection Iron Ore Powder assimilates temperature |
| CN106908473B (en) * | 2017-04-18 | 2023-03-10 | 安徽工业大学 | Device and method for detecting iron ore powder assimilation temperature by simulating different atmospheres |
| CN108007960A (en) * | 2017-08-09 | 2018-05-08 | 安徽工业大学 | A kind of device and the detection method on anabolic reaction opportunity using electrical signal detection Iron Ore Powder assimilation temperature |
| CN108007960B (en) * | 2017-08-09 | 2023-04-28 | 安徽工业大学 | Device for detecting assimilation temperature of iron ore powder by adopting electric signals and detection method of assimilation reaction time |
| CN109283214A (en) * | 2018-11-29 | 2019-01-29 | 安徽工业大学 | A kind of detection Iron Ore Powder assimilates the device of temperature and anabolic reaction speed |
| CN109283214B (en) * | 2018-11-29 | 2024-04-05 | 安徽工业大学 | Device for detecting assimilation temperature and assimilation reaction speed of iron ore powder |
| CN112782214A (en) * | 2020-11-25 | 2021-05-11 | 中南大学 | Method for measuring liquid phase generation characteristics in iron ore sintering process |
| CN112694322B (en) * | 2021-01-28 | 2023-11-10 | 中冶赛迪技术研究中心有限公司 | Sintered body, preparation method thereof and characterization method of high-temperature spreading behavior |
| CN112694322A (en) * | 2021-01-28 | 2021-04-23 | 中冶赛迪技术研究中心有限公司 | Sintered body, preparation method thereof and characterization method of high-temperature spreading behavior |
| CN113960102A (en) * | 2021-09-24 | 2022-01-21 | 宣化钢铁集团有限责任公司 | Method for measuring assimilation performance of iron ore powder |
| CN114486993A (en) * | 2021-12-28 | 2022-05-13 | 武钢集团昆明钢铁股份有限公司 | Method for detecting assimilation temperature of iron ore powder |
| CN116930231B (en) * | 2023-09-15 | 2023-11-24 | 太原海通智慧信息技术有限公司 | Cement material component online detection system and online detection method thereof |
| CN116930231A (en) * | 2023-09-15 | 2023-10-24 | 太原海通智慧信息技术有限公司 | Cement material component online detection system and online detection method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104330435A (en) | Measurement method of assimilation characteristics of iron ore powder | |
| CN102809579A (en) | Method for detecting high-temperature mineralization characteristic of sintered iron ores | |
| Lv et al. | Behavior of liquid phase formation during iron ores sintering | |
| CN107101898B (en) | Method for measuring characteristic number of bond strength of sinter | |
| Sun et al. | Thermogravimetric study of coal-based reduction of oolitic iron ore: Kinetics and mechanisms | |
| CN106908473B (en) | Device and method for detecting iron ore powder assimilation temperature by simulating different atmospheres | |
| Quach et al. | Direct measurement of grain boundary enthalpy of cubic yttria-stabilized zirconia by differential scanning calorimetry | |
| CN103529168B (en) | The anabolic method of testing of Iron Ore Powder and device thereof | |
| Li et al. | Influence of Al2O3 on equilibrium sinter phase in N2 atmosphere | |
| CN104458789B (en) | Method for detecting high temperature performance of iron ore powder | |
| CN103063602A (en) | Method for measuring free carbon and silicon carbide in silicon carbide deoxidizing agent | |
| CN110174331A (en) | A kind of agglomeration for iron mine Binder Phase high-temperature moisture measuring method | |
| Yin et al. | Influence of CaO source on the formation behavior of calcium ferrite in solid state | |
| Gan et al. | High temperature mineralization behavior of mixtures during iron ore sintering and optimizing methods | |
| CN108007959B (en) | Method for detecting assimilation temperature based on iron ore powder temperature-electric signal curve | |
| CN113607611A (en) | Coupling evaluation method for mixing uniformity of powder material | |
| Zhong et al. | An efficient method for iron ore sintering with high-bed layer: double-layer sintering | |
| CN1330572C (en) | Self-spreading metallurgical process of preparing CaB6 powder | |
| CN101661016A (en) | Method for measuring hydrogen pressure in solid steel and device | |
| Wu et al. | Ore-blending optimization for Canadian iron concentrate during iron ore sintering based on high-temperature characteristics of fines and nuclei | |
| CN102901730A (en) | Determinator for high-temperature metallurgical performance of visual iron ore powder | |
| CN106872510A (en) | A kind of ore-proportioning method for assimilating performance based on Iron Ore Powder | |
| CN102879400A (en) | Method for visually determining basic metallurgical performance of iron powdered ore | |
| CN104496233A (en) | Preparation method for clinker of cement raw material burnability test | |
| CN104865342B (en) | The method of a kind of visual micro test mineral high-temperature reconstruction and device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150204 |