CN205449840U - Improved sinter pot test device - Google Patents
Improved sinter pot test device Download PDFInfo
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- CN205449840U CN205449840U CN201620153124.8U CN201620153124U CN205449840U CN 205449840 U CN205449840 U CN 205449840U CN 201620153124 U CN201620153124 U CN 201620153124U CN 205449840 U CN205449840 U CN 205449840U
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Abstract
The utility model relates to an improved sinter pot test device, including sintered cup, ignition system and convulsions dust pelletizing system, sintered cup and real empty room pass through the baffle and correspond to separate along circumference and be 2~4 independently regions, establish the thermocouple in every region respectively, sintered cup grate strip is greater than the edge's grate strip clearance for activity grate strip, the grate strip clearance that just is located center part, every equal detachably in regional top of sintered cup is provided with and keeps off the material lid, all along high to setting up the scale, just be equipped with 1 thermocouple along high to 150~200mm of every on every regional cup body outer wall of sintered cup. Adopt the utility model discloses test, multiunit sinter mixture can accomplish the sintering through a sintering experiment, reduces the duplicate test number, and then improves efficiency, comparativity and the simulation effect of iron ore agglutinating test, reduces intensity of labour, simultaneously can conveniently calculate combustion zone translation rate, sintering terminal point, improvement sintering deposit quality are judged to the accuracy.
Description
Technical field
This utility model relates to sintering test technical field, particularly relates to the sintering cup test device of a kind of improvement.
Background technology
Sintering is one of main method of iron mineral powder agglomeration, and it is possible not only to agglomeration of fine ore for blast furnace process, it is also possible to improve the metallurgical performance of iron ore.Along with sintering iron-bearing material kind is increasing, Optimizing Sintered Ore Matching, Low cost allocation seem more important.
In order to study and grasp iron ore powder sintering basic characteristic, the various physical properties of test sintering deposit, need to be sintered cup test.Sintered cup experimental provision is the small-sized simulated device simulated actual production and set up, and is to carry out iron ore sintering performance evaluation, Iron Ore Matching in Sintering optimization, sintering process parameter optimization and improve the important tests means of Sintering Operation Index technical research.Utilize sintered cup can simulate the overall process of SINTERING PRODUCTION technique, first fire grate bar is arranged on the bottom of sintered cup, again by sinter mixture cloth to sintered cup, charge level upper end is concordant with sintering rim of a cup, then light a fire in top lighter moving to sintered cup, start convulsion bottom sintered cup simultaneously, igniting regulates the convulsion pressure bottom sintered cup by test requirements document after terminating, compound after igniting starts from top to bottom to sinter, sintering process carries out detection to sintering deposit after terminating and analyzes, obtain simulation operating condition of sintering machine burns till rate, drum strength, solid burnup, the technical indicators such as usage factor.Sintered cup experimental provision assembling level, to accurate simulation sintering production process, effectively instructs SINTERING PRODUCTION to have vital effect.
An only space in existing sintering cup test device only one of which sintered cup, and sintered cup burner hearth, can only do the sintering test of a kind of sinter mixture every time, and bed depth is not easy to regulation.There are the following problems to use existing sintered cup device to carry out experiment:
1) it is sintered when joining ore deposit Scheme Choice of ore deposit every time, substantial amounts of parallel laboratory test will be done, to ensure the precision of experimental data；
2) many for each alternative test number (TN) joining ore deposit scheme, owing to by the instable interference of single sintering cup test, may affect result of the test, it is not optimal for causing the ore deposit scheme of joining finally selected；
3) variety classes sinter mixture is sintered once completing, and needs repeatedly sintering cup test；Sintering test is all affected by sintering equipment itself every time, causes the determination of optimal processing parameter not have the strongest foundation.
When using existing sintering cup test device to be sintered Optimization Ore Matching selection in a word, needing to do a large amount of parallel test every time, the most not only cause experimental amount big, various material consumptions increase, the problems such as labor intensity is big, and the repeatability of experimental result, stability, comparability and simulation weak effect.
The Chinese patent of Application No. 200920014855.4 discloses " a kind of iron ore sintering experimental device ", this device is made up of sintered cup and igniting cover, gas fan, combustion fan and induced draft fans, igniting cover is positioned at the top of sintered cup, it is connected with gas fan and combustion fan respectively with combustion air pipeline by gas piping, sintered cup and igniting cover thereof are more than 2, in parallel with each pipeline.Assay device described in this patent, several sinter mixture sintering tests once can be completed, improve test efficiency, but do not ensure that the testing equipment condition of every kind of sinter mixture is completely the same, and then remove the testing equipment impact on sinter quality, and need to build more than 2 sintered cups, igniter and corresponding pipe network system thereof, thus investment is relatively big, builds complexity.
The Chinese patent of Application No. 201120416520.2 discloses " a kind of suppression sintered cup edge effect ring ", be a thickness be 20mm～30mm, width is internal diameter 6%8%, the endless means that external diameter is identical with sintered cup internal diameter.During sintering test, owing to the large granular materials segregation at edge and sintered cup wall of cup can make a large amount of gas be passed through by near sintered cup wall of cup with the gap of material, cause edge sinter strength poor, the repeatability of impact test.Utilize this endless means, edge material porosity and material can be made to diminish with wall of cup gap, to a certain degree suppress edge effect, but this endless means decreases effective convulsion area, affect in sintered cup the quality of sintering deposit beyond edge.
The Chinese patent of Application No. 201110271645.5 discloses " assay device of a kind of anatomical study sintering process and using method thereof ", this device includes sintering cup, it is characterized in that: column type sleeve is built on the fire grate bar in sintered cup body, column type sleeve is combined by two semicolumn jacket cylinders, after the height of column type sleeve is for being positioned in sintered cup body on fire grate bar, concordant with sintering rim of a cup, in the middle of column type sleeve, dividing plate is set, what the bottom of semicolumn jacket cylinder was all symmetrical arranges journal stirrup, and sleeve burner grid section is placed on journal stirrup；Utilize method described in said apparatus and this utility model can obtain complete sinter cake for dissecting and microscope observation analysis, but this device has the drawback that 1) every time test cylindrical sleeves all must be put into and take out in sintered cup body, thermocouple cannot be installed in sleeve wall, its underpart vacuum chamber can not be split accordingly, thus even if sleeve is provided with dividing plate, single test can not complete the sintering of two kinds of sinter mixtures；2) carrying out test to be required for filling sand at sleeve and sintered cup gap, sand is easily drawn into pipeline, affects fan life every time；3) this device has two-layer grate bar, and charging process makes sintered cup grate bar and sleeve grate bar not to be substantially parallel, and affects bed permeability, in sum this device operation complexity, and test efficiency is relatively low, result poor reproducibility.
Summary of the invention
This utility model provides the sintering cup test device of a kind of improvement, and many group sinter mixtures can complete sintering through once sintered experiment, reduces replicated experimental units, and then improves the efficiency of iron ore sintering test, comparability and simulation effect, reduces labor intensity；Combustion zone translational speed can be calculated easily simultaneously, accurately judge sintering end point, improve sinter quality.
In order to achieve the above object, this utility model realizes by the following technical solutions:
The sintering cup test device of a kind of improvement, including sintered cup, ignition system and ventilation and dust removal system, ignition system is positioned at sintered cup top, sets vacuum chamber and be connected with ventilation and dust removal system bottom sintered cup；Described sintered cup is divided into 2～4 isolated areas with vacuum chamber by dividing plate is the most corresponding, sets thermocouple in each region respectively；Sintered cup grate bar is movable grating bar, and is positioned at the grate interspace grate interspace more than edge in centre；The top in each region of sintered cup is all detachably provided with backgauge lid；On the cup outer wall in each region of sintered cup all along high to arranging scale, and be provided with 1 thermocouple along high to every 150～200mm.
The cross section of described sintered cup is annular, and internal diameter is 300～450mm, and height is 700～1000mm.
The material of described dividing plate is the double-deck cast iron Han Cr, and internal filling heat-preservation cotton, gross thickness is 20～30mm；Dividing plate is uniformly distributed along sintered cup or vacuum chamber circumference.
Described sintered cup grate bar centre grate interspace is 9～11mm, and edge grate interspace is 7～9mm.
Compared with prior art, the beneficial effects of the utility model are:
1) organize sinter mixture more and can complete sintering through once sintered experiment, reduce replicated experimental units, and then improve the efficiency of iron ore sintering test, comparability and simulation effect, reduce labor intensity；
2) combustion zone translational speed can be calculated easily simultaneously, accurately judge sintering end point, improve sinter quality.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is facade partial sectional view of the present utility model.(being divided into 2 regions)
Fig. 3 is the top view one of sintered cup described in this utility model embodiment.(being divided into 2 regions)
Fig. 4 is the top view two of sintered cup described in this utility model embodiment.(being divided into 4 regions)
In figure: 1. ignition system 2. sintered cup 3. thermocouple 4. vacuum chamber 5. ventilation and dust removal system 6. dividing plate 7. grate bar 8. backgauge lid 9. bolt
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described further:
See Fig. 1-Fig. 4, be structural representation of the present utility model.The sintering cup test device of a kind of improvement of this utility model, including sintered cup 2, ignition system 1 and ventilation and dust removal system 5, ignition system 1 is positioned at sintered cup 2 top, sets vacuum chamber 4 and be connected with ventilation and dust removal system 5 bottom sintered cup 2；Described sintered cup 2 is divided into 2～4 isolated areas with vacuum chamber 4 by dividing plate 6 is the most corresponding, sets thermocouple 3 in each region respectively；Sintered cup grate bar 7 is movable grating bar, and is positioned at the grate interspace grate interspace more than edge in centre；The top in each region of sintered cup 2 is all detachably provided with backgauge lid 8；On the cup outer wall in each region of sintered cup 2 all along high to arranging scale, and be provided with 1 thermocouple 3 along high to every 150～200mm.
The cross section of described sintered cup 2 is annular, and internal diameter is 300～450mm, and height is 700～1000mm.
The material of described dividing plate 6 is the double-deck cast iron Han Cr, and internal filling heat-preservation cotton, gross thickness is 20～30mm；Dividing plate 6 is uniformly distributed along sintered cup 2 or vacuum chamber 4 circumference.
Described sintered cup grate bar 7 centre grate interspace is 9～11mm, and edge grate interspace is 7～9mm.
The method that the sintering cup test device using a kind of improvement of this utility model is sintered cup test is as follows:
1) test can install 2-4 group sinter mixture in sintered cup 2 additional simultaneously every time, and often group sinter mixture can be identical, it is also possible to different；According to installing the group number of sinter mixture additional, in sintered cup 2 and vacuum chamber 4, it is respectively mounted dividing plate 6 is separated out the region of respective amount, and dividing plate 6 is fixed with bolt；
2) it is respectively mounted thermocouple 3 in sintered cup 2 and the corresponding cut zone of vacuum chamber 4；Wherein arranging 1 thermocouple 3 in each cut zone of vacuum chamber 4, each cut zone of sintered cup 2 sets 1 thermocouple 3 along high to every 150～200mm；
3) load sinter mixture in each region after sintered cup 2 separates respectively, and load onto backgauge lid 8 at top, each region；Mobile igniting cover to sintered cup 2 top, igniting down draft sintering；Firing temperature is 900 DEG C～1000 DEG C, and the duration of ignition is 2min～3min, and suction pressure is 11kPa～15kPa；
4) according to temperature measurement data and the height of corresponding thermocouples 3 of thermocouple 3 each in sintered cup 2, the variations in temperature of measuring and calculating sinter bed, judge whether sintering reaches home according to the EGT that thermocouple 3 in the variations in temperature of sinter bed and vacuum chamber 4 records；
5) pour out often composition product sintering deposit after sintering process terminates respectively, during batch turning, install backgauge lid 8 additional at other top, region having sintering deposit, prevent batch mixing, carry out sintering deposit detection after then each group of sintering deposit being crushed respectively and analyze.
As shown in Figures 3 and 4, sintered cup 2 inwall is provided with the septalium for installing dividing plate 6, and dividing plate 6 is placed in septalium and is bolted.Dividing plate 6 in vacuum chamber 4 is welded on vacuum chamber 4 inwall, and backgauge lid 8 is fixed on the upper surface of sintered cup 2 by bolt 9.Grate bar 7 is arranged on the grate bar groove bottom sintered cup 2 Nei (as shown in Figure 2)
Following example are implemented under premised on technical solutions of the utility model, give detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.In following embodiment, method therefor is conventional method if no special instructions.
[embodiment 1]
In the present embodiment, sintered cup 2 internal diameter is 350mm, and height is 800mm, is internally provided with dividing plate 6, and 6 sintered cup 2 inner homogeneous of dividing plate are divided into a-quadrant and B region, as shown in Figure 3；Dividing plate 6 thickness is 25mm, by bilayer iron casting Han Cr, and internal filling heat-preservation cotton.
Sintered cup 2 inwall is provided with the septalium for installing dividing plate 6, and dividing plate 6 is fixed in septalium by screw bolt and nut；The cup outer wall of each cut zone of sintered cup 2 is provided with scale, is provided with thermocouple 3 along its short transverse every 160mm；Sintered cup 2 bottom vacuum room 4 is provided with dividing plate 6, and dividing plate 6 is welded on vacuum chamber 4 inwall, and vacuum chamber 4 is divided into two regions accordingly, and each cut zone is provided with thermocouple 3；Sintered cup grate bar 7 is movable grating bar, and the center portion thereof position grate interspace is 10mm, and edge grate interspace is 8mm, is installed on bottom sintered cup 2 in grate bar groove.
Carry out dispensing according to Iron Ore Matching in Sintering scheme, after sinter mixture mixing, be divided into 3 groups.Wherein 1 group of compound conventional sintering cup is sintered test, and another 2 groups of compounds are distributed into the internal a-quadrant of sintered cup described in the utility model and B region respectively；Mobile igniting cover, to sintered cup 2 top, is opened the air exhauster in the control valve for coal gas in ignition system 1, combustion fan and ventilation and dust removal system 5 and is carried out down draft sintering of lighting a fire；Firing temperature is 950 DEG C, and the duration of ignition is 2min, and suction pressure is 13kPa；Temperature-measuring results according to thermocouple 3 each on sintered cup 2 cup and the height at place thereof, calculate sinter bed variations in temperature；Judge whether sintering reaches home according to EGT in sinter bed variations in temperature and vacuum chamber 4；After sintering process terminates, backgauge lid 8 is loaded onto at the top, B region of sintered cup 2, pour out the finished product sintering deposit A in a-quadrant, then pull down backgauge lid 8 and pour out the finished product sintering deposit B in B region, sintering deposit A and sintering deposit B is crushed respectively, then being sintered ore deposit detection to analyze, testing result is as shown in table 1.
Table 1 sintering test index
As shown in Table 1, it is sintered testing the sintering index of gained sintering deposit A and sintering deposit B with the sintered cup device of improvement described in the utility model, the sintering index being sintered testing gained sintering deposit with conventional sintering cup is consistent in the range of test error, but the once sintered process of the test of this utility model is equivalent to use conventional apparatus to carry out twice parallel sintering test, and test efficiency doubles.
[embodiment 2]
In the present embodiment, sintered cup 2 internal diameter is 400mm, and height is 1000mm, is internally provided with dividing plate 6, and 6 sintered cup 2 inner homogeneous of dividing plate are divided into C region, D region, E region and F region (as shown in Figure 4)；Dividing plate 6 thickness is 30mm, by bilayer iron casting Han Cr, and internal filling heat-preservation cotton.
The cup outer wall of each cut zone of sintered cup 2 is provided with scale, is provided with thermocouple 3 along its short transverse every 200mm；Sintered cup 2 bottom vacuum room 4 is provided with dividing plate 6, and dividing plate 6 is welded on vacuum chamber 4 inwall, and vacuum chamber 4 is divided into four regions accordingly, and each region is provided with thermocouple 3；Grate bar 7 is movable grating bar, and the center portion thereof position grate interspace is 9mm, and edge grate interspace is 7mm, is installed on bottom sintered cup 2 in grate bar groove.
Under conditions of iron charge is consistent, the research basicity change impact on sinter quality, the basicity of sinter mixture is set to 1.8,1.9,2.0 and 2.1 4 levels.Carry out dispensing according to Iron Ore Matching in Sintering scheme, and load in the C region of sintered cup 2 described in the utility model, D region, E region and F region after 4 groups of sinter mixtures are mixed respectively.
Mobile igniting cover, to sintered cup 2 top, is opened the air exhauster in the control valve for coal gas in ignition system 1, combustion fan and ventilation and dust removal system 5 and is carried out down draft sintering of lighting a fire, and firing temperature is 1000 DEG C, and the duration of ignition is 2.5min, and suction pressure is 14kPa；Temperature-measuring results according to thermocouple 3 each on sintered cup 2 cup and the height at its place, calculate sinter bed variations in temperature；Judge whether sintering reaches home according to sinter bed variations in temperature and vacuum chamber 4 EGT；After sintering process terminates, backgauge lid 8 is loaded onto respectively at the top, D, E, F region of sintered cup 2, first pour out the finished product sintering deposit C in C region, dismantle the backgauge lid 8 in lower D, E, F region the most successively and pour out the finished product sintering deposit D of corresponding region, finished product sintering deposit E and finished product sintering deposit F, 4 composition product sintering deposits are crushed respectively, then being sintered ore deposit detection to analyze, result is as shown in table 2.
Table 2 sintering test index
As shown in Table 2, drum strength and the yield rate of sintering deposit reduce afterwards along with basicity improves first to increase, and obtain optimal value, respectively 71.09% and 67.48% when basicity 2.0；Sintering usage factor obtains optimum 1.552t/ (m2.h) when basicity is 1.9, and sintering burnup obtains optimum 52.45kg/t when basicity is 2.0.Sintering cup test device described in the utility model, 4 groups of sinter mixtures is utilized to complete sintering in single test simultaneously, completely eliminated the impact on result of the test of apparatus factor and technological parameter, show that the basicity of this sinter mixture applicable is 2.0.
Utilize sintering cup test device described in the utility model, not only increase comparability and the simulation effect of sintering test, and improve the efficiency of sintering test, alleviate labor intensity.
The above; it is only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; conceive equivalent or change in addition according to the technical solution of the utility model and utility model thereof, all should contain within protection domain of the present utility model.
Claims (5)
1. the sintering cup test device improved, including sintered cup, ignition system and ventilation and dust removal system, ignition system is positioned at sintered cup top, sets vacuum chamber and be connected with ventilation and dust removal system bottom sintered cup；It is characterized in that, described sintered cup is divided into 2～4 isolated areas with vacuum chamber by dividing plate is the most corresponding, sets thermocouple in each region respectively；Sintered cup grate bar is movable grating bar, and is positioned at the grate interspace grate interspace more than edge in centre；The top in each region of sintered cup is all detachably provided with backgauge lid；On the cup outer wall in each region of sintered cup all along high to arranging scale, and be provided with 1 thermocouple along high to every 150～200mm.
The sintering cup test device of a kind of improvement the most according to claim 1, it is characterised in that the cross section of described sintered cup is annular, internal diameter is 300～450mm, and height is 700～1000mm.
The sintering cup test device of a kind of improvement the most according to claim 1, it is characterised in that the material of described dividing plate is the double-deck cast iron Han Cr, internal filling heat-preservation cotton, gross thickness is 20～30mm；Dividing plate is uniformly distributed along sintered cup or vacuum chamber circumference.
The sintering cup test device of a kind of improvement the most according to claim 1, it is characterised in that described sintered cup grate bar centre grate interspace is 9～11mm, and edge grate interspace is 7～9mm.
The sintering cup test device of a kind of improvement the most according to claim 1, it is characterised in that the grate cylindrical void offered on described sintered cup grate bar is rectangular opening, the centre grate cylindrical void length of side is 8～10mm, and the edge grate cylindrical void length of side is 5～7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620153124.8U CN205449840U (en) | 2016-02-29 | 2016-02-29 | Improved sinter pot test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620153124.8U CN205449840U (en) | 2016-02-29 | 2016-02-29 | Improved sinter pot test device |
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| CN205449840U true CN205449840U (en) | 2016-08-10 |
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| CN201620153124.8U Expired - Fee Related CN205449840U (en) | 2016-02-29 | 2016-02-29 | Improved sinter pot test device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107070A (en) * | 2017-12-19 | 2018-06-01 | 武汉钢铁有限公司 | A kind of device and method for reducing sintering cup test air leak rate of air curtain |
| CN110793324A (en) * | 2019-09-30 | 2020-02-14 | 鞍钢股份有限公司 | Iron ore sintering cup simulation test system and method capable of realizing process temperature control |
| CN110793880A (en) * | 2019-09-30 | 2020-02-14 | 鞍钢股份有限公司 | Device and method for simulating metallurgical reduction mineral aggregate process |
| CN113933338A (en) * | 2021-10-15 | 2022-01-14 | 马鞍山钢铁股份有限公司 | Sintering layered dissection test equipment and test method |
-
2016
- 2016-02-29 CN CN201620153124.8U patent/CN205449840U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107070A (en) * | 2017-12-19 | 2018-06-01 | 武汉钢铁有限公司 | A kind of device and method for reducing sintering cup test air leak rate of air curtain |
| CN110793324A (en) * | 2019-09-30 | 2020-02-14 | 鞍钢股份有限公司 | Iron ore sintering cup simulation test system and method capable of realizing process temperature control |
| CN110793880A (en) * | 2019-09-30 | 2020-02-14 | 鞍钢股份有限公司 | Device and method for simulating metallurgical reduction mineral aggregate process |
| CN113933338A (en) * | 2021-10-15 | 2022-01-14 | 马鞍山钢铁股份有限公司 | Sintering layered dissection test equipment and test method |
| CN113933338B (en) * | 2021-10-15 | 2024-02-09 | 马鞍山钢铁股份有限公司 | Sintering layered anatomical test equipment and test method |
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Granted publication date: 20160810 |