CN106498153B - Super-thick material layer pre-sintering device and using method thereof - Google Patents
Super-thick material layer pre-sintering device and using method thereof Download PDFInfo
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- CN106498153B CN106498153B CN201610815533.4A CN201610815533A CN106498153B CN 106498153 B CN106498153 B CN 106498153B CN 201610815533 A CN201610815533 A CN 201610815533A CN 106498153 B CN106498153 B CN 106498153B
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- 239000000463 material Substances 0.000 title claims abstract description 110
- 238000005245 sintering Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000012360 testing method Methods 0.000 claims abstract description 28
- 239000004744 fabric Substances 0.000 claims description 32
- 230000000903 blocking effect Effects 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 15
- 230000003028 elevating effect Effects 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 3
- 239000011707 mineral Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 11
- 239000010410 layer Substances 0.000 description 9
- 238000009825 accumulation Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000001603 reducing effect Effects 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 210000000476 body water Anatomy 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
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- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009770 conventional sintering Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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- 230000003179 granulation Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
- C22B1/22—Sintering; Agglomerating in other sintering apparatus
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a pre-sintering device for an ultra-thick material layer and a using method thereof, the device comprises an igniter and a sintering cup main body, the igniter is fixed on a rotary lifting connecting device, a grate is arranged in the sintering cup main body, a material level testing system is arranged on one side of the sintering cup main body, the material level testing system comprises a rotation-resistant material level meter and a rotary lifting device, the rotary lifting device consists of a lifting rod and a cross beam, the rotation-resistant material level meter is suspended in the cross beam and is suspended in the sintering cup main body, a graduated scale is arranged on the lifting rod, and the initial position of the lifting rod is horizontal to the upper end of the; the using method comprises the following steps: starting a material level testing system, adjusting a rotary lifting device to enable the lower end of a blade of the rotation-resistant material level meter to reach the preset material distribution layer height, distributing materials, stopping distributing materials after the preset height is reached, moving out the rotation-resistant material level meter, and igniting and sintering; and (5) after the ignition is finished for more than or equal to 8min, carrying out secondary material distribution, and igniting and sintering after the preset height is reached. The method improves the uniformity of the sintered mineral quality of the thick material layer, and improves the strength and the yield of the sintered mineral.
Description
Technical field
The invention belongs to sintering arts more particularly to a kind of super thick bed of material to be pre-sintered experimental provision and its application method.
Background technology
Deep-bed sintering is the sintering technology for starting development the seventies in last century, and having improves sinter strength, reduces powder
End amount, improves reducing property, in addition, also having significant effect to improving sinter yield rate and saving solid fuel consumption.
Realize that deep bed sintering or even super deep-bed sintering have become sintering industry pursuing a goal for a long time.
The characteristics of deep bed sintering and super deep-bed sintering make full use of sintering process auto accumulation heat reaches said effect.Work as sintering
Mixture layer surface point is fought be pumped into air after, combustion zone in sintering process since sintering along bed depth gradually down into
Row, so as to form sinter band, combustion zone, preheating zone, dry zone and cross five levels of wet bands.Former Soviet Union Xi Gefu is once to burning
The accumulation of heat effect of knot process carries out quantitative study, by the normal mixing bed of material with carbon by contour segmentation straticulation junior unit, by list
Thermal balance of the position areal calculation per unit, the heat income for being located below unit increase two parts heat than unit disposed thereon
Amount, i.e., the heat that the heat and upper strata reaction hot waste gas that hot ore deposit cooling procedure is brought into from upper strata are brought into.When bed depth is 400mm
When, amount of stored heat may be up to 65%.Since the auto accumulation heat of sintering process acts on, sinter bed temperature declines with bed depth
It is stepped up, this is conducive to the progress of various physical-chemical reactions so that various crystallizable minerals are abundant, and sinter structure is changed
It is kind.Therefore, increasing with the bed of material, sinter strength is accordingly improved.Although positioned at surface layer sinter due to accumulation of heat it is few,
Temperature is low and intensity difference, but increasing with the bed of material, and ratio shared by surface part is opposite to become smaller, therefore entire sinter is strong
Degree is improved, and average powder content is reduced.Simultaneously because deep bed sintering operation accumulation of heat is more, this is possible to suitably reduce mixing
Expect mixed carbon comtent to avoid the excessively high adverse effect of material layer temperature.Both consumption capable of saving fuel in this way, also enhances the oxidation of the bed of material
Atmosphere advantageously reduces the content of ferrous oxide in sinter (FeO) and improves the reducing property of sinter.But with the bed of material
Thickening, increased by the gas-flow resistance of the bed of material, sintering velocity slows down, and productivity of sinter is caused to reduce, this burns thin concentrate powder
Knot influences bigger.Therefore, while carrying out deep bed sintering operation, the corresponding measure for improving bed permeability need to be taken, to avoid production
Rate declines.Major measure has：(1) improve the preparation of material before being sintered, strengthen mixing granulation, to change the granularity group of mixture
Into improving its gas permeability；(2) with addition of a small amount of lime with intensified-sintered process；(3) preheating of mixed material is made to reach more than dew point
Temperature improves charging size distribution and compactness, so as to improve the gas permeability of the bed of material with segregation distribution technique and stirring device；
(5) suitably increase exhaust fan ability is to overcome by thickening the increased resistance of bed of material institute, in order to avoid exhausting amount is caused to decline and slow down
Sintering velocity.
At present, domestic and international sintering material layer thickness is usually above and below 700mm, and highest sintering material layer thickness is also only in 900mm
Left and right, and reach the bottleneck that higher super thick bed of material sintering production has become sintering industry instantly.Due to being burnt in the super thick bed of material
In knot, the further thickening of sinter bed so that accumulation of heat effect is further strengthened, and lower floor's sinter strength is more preferable, so as to cause
The otherness of levels sinter significantly increases, and sinter quality is uneven, therefore constrains the further of sintering material layer thickness
Increase.
《A kind of iron ore sintering experimental device》(CN200920014855.4) device is disclosed by sintered cup and its point
Fiery cover, gas fan, combustion fan and induced draft fans composition, igniting cover are located at the top of sintered cup, by gas piping and help
Combustion wind pipeline is connected respectively with gas fan and combustion fan, and the bottom end of sintered cup is by being sintered exhaust pipe and induced draft fans phase
Even, sintered cup and its igniting cover are 2 or more, in parallel with each pipeline.Experimental work can not only be made using the utility model same
One experimentation is completed, and significantly improves reproducibility, stability, comparativity and the simulation effect of iron ore sintering experiment.It should
Patent proposes the method for reducing labor intensity and test number (TN) only for conventional sintering process, it is difficult to realize super deep-bed sintering.
《A kind of sintered cup for super thick bed of material sintering test》(CN200920076175.5) the sintered cup packet is disclosed
Cup body and pedestal are included, cup body is transparent quartz ampoule, and cup body is set on pedestal, and fixation is connect with pedestal.As a result of
Transparent cup body enables people to utilize naked eyes monitoring sinter bed respectively band changing rule, and then grasp the heat in sinter bed
Amount distribution and the effect of changing rule.It is well known that since the edge effect in by sintering process is influenced, the device meeting is used
Lead to not intuitive accurate judgement sintering process, while the device can not realize automatic monitoring charge level height, it can not be convenient accurate
The development super thick bed of material be pre-sintered experimental study.
《A kind of sintering cup device》(CN201420323008.7) disclosed sintering cup device includes sintered cup inner tube and stove
Grate, the fire grate are set in sintered cup inner tube, are provided on the inner wall of the sintered cup inner tube along sintered cup inner tube axis
There is the limiting section being adapted with guide rail to the guide rail of arrangement, on the fire grate.This sintering cup device being capable of the device energy
Fire grate run-off the straight phenomenon in installation process is enough effectively prevented, fire grate is made quickly and accurately to be installed to correct position
It puts.The device is intended to overcome fire grate run-off the straight phenomenon in installation process, can not carry out super thick bed of material pre-sintering process and grind
Study carefully.
Invention content
It is an object of the invention to overcome the above problem and deficiency and provide a kind of super thick bed of material be pre-sintered experimental provision and
Its application method realizes the feasibility of super thick bed of material sintering production technique, reaches and improves sinter yield rate, and it is strong to improve sinter
Degree enhances the super uniform and stable property of deep-bed sintering sinter quality, reduces sintering solid burnup, breaks and realizes super deep-bed sintering
The effect of cost efficiency is realized while technique bottleneck.
The object of the present invention is achieved like this：
A kind of super thick bed of material is pre-sintered device, including igniter and sintered cup main body, sintered cup body exterior setting thermometric
Thermocouple, igniter are fixed on rotation and lifting attachment device, and the attachment device realizes lifting and rotation, the sintered cup main body
Built-in grid section, sintered cup side setting material position test system, and the material position test system includes blocking rotary type level-sensing device and rotation rises
Falling unit 8, rotating lifting gear is made of elevating lever and crossbeam, and elevating lever and crossbeam are inverted L-shaped, the crossbeam of rotating lifting gear
Blocking rotary type level-sensing device is hung, is suspended from sintered cup main body in blocking rotary type level-sensing device, there is graduated scale, graduated scale start bit on elevating lever
It puts horizontal with grid section upper end holding in sintered cup body.
The igniter is 2, and 1# igniting 1 is both secured to rotation and lifting attachment device with 2# igniters.
The igniter shares a set of control device with sintered cup；The control device, including data processor and PID
Controller is connected by PID signal with sintered cup main body and igniter.
The igniter includes 1# igniters, 2# igniters, and 1# and 2# igniter attachment devices, the attachment device can rise
Drop and rotation；It can be achieved to improve production efficiency and extend igniter using different igniters for the first time and during regnition to use the longevity
The purpose of life.
The sintered cup main body, cross section be circular ring shape, internal diameter be 300mm~400mm, highly for 550mm~
1700mm。
The material position tests system, and including blocking rotary type level-sensing device and rotating lifting gear 8, the blocking rotary type level-sensing device uses
Control principle, contact measurement material position in electromechanical position.The rotating lifting gear arbitrarily can rotate and lift, there is graduated scale on elevating lever,
It is horizontal that the holding of grid section upper end is put in graduated scale initial position and sintered cup body；It can realize in sintered cup main body for the first time and secondary cloth
The automatic of material sinter mixture charge level height accurately measures, and improves production efficiency.
A kind of super thick bed of material is pre-sintered the application method of device, starts material position test system, graduated scale initial position first
It keeps horizontal with grid section upper end in sintered cup body, adjusts the rotating lifting gear of material position test system so that rotating lifting gear
The blade lower end of the blocking rotary type level-sensing device of connection reaches presetting cloth bed depth for the first time, and cloth bed depth is for the first time
500mm-900mm, carries out cloth for the first time into sintered cup main body, after predetermined cloth height for the first time to be achieved, stops cloth, cut-out
The power supply of blocking rotary type level-sensing device, and pass through and control rotating lifting gear that blocking rotary type level-sensing device is removed sintered cup main body, use 1#
Igniter or 2# igniters carry out igniting sintering to sintered cup, and rotation and lifting attachment device is adjusted after lighting a fire to setting time and is removed
Igniter；After light a fire for the first time terminate >=8min after, carry out secondary material distributing, start material position test system, system is tested by material position
Rotating lifting gear so that height of the blade lower end of blocking rotary type level-sensing device apart from rotating lifting gear graduated scale initial position
It is identical with sinter mixture bed of material total height, secondary material distributing is carried out into sintered cup main body, the presetting bed of material to be achieved is always high
Degree stops cloth, and sinter mixture bed of material total height >=1000mm carries out igniting sintering, point using 2# igniters or 1# igniters
Rotation and lifting attachment device is adjusted after fiery setting time and removes igniter, finished product sinter is poured out after process to be sintered.
The beneficial effects of the present invention are：
1st, the present invention provides a kind of super thick bed of materials to be pre-sintered device and its application method, can carry out super deep-bed sintering
Technical research, the means to improve the cost efficiency such as sintering material layer thickness, increase sinter production capacity, reduction sintering solid burnup carry
Research means are supplied.
2nd, the present invention realizes super thick bed of material sintering process, improves deep-bed sintering ore deposit quality uniformity, improves burning
Tie ore deposit intensity and yield rate.
Description of the drawings
Fig. 1 is pre-sintered apparatus structure schematic diagram for the super thick bed of material of the present invention.
1 is 1# igniters in figure, and 2 be 2# igniters, and 3 be 1#2# igniter rotation and lifting attachment devices, and 4 be blocking rotary type material
Position meter, 5 be sintered cup main body, and 6 be grid section, and 7 devices in order to control, 8 be rotating lifting gear, and 9 be temperature thermocouple, and 10 be leaf
Piece, 11 be crossbeam；12 be elevating lever, and 13 be graduated scale.
Specific embodiment
As shown in Figure 1, a kind of super thick bed of material is pre-sintered device, including igniter and sintered cup main body 5, sintered cup main body 5
Outside setting temperature thermocouple 9, igniter are 2, and 1# igniters 1 are both secured to rotation and lifting attachment device with 2# igniters 2
3, the attachment device liftable and rotation, grid section 6 built in the sintered cup main body, sintered cup side setting material position test system
System, the material position test system include blocking rotary type level-sensing device 4 and rotating lifting gear 8, and rotating lifting gear 8 is by 12 He of elevating lever
Crossbeam 11 forms, and elevating lever 12 and crossbeam 11 are inverted L-shaped, and the crossbeam 11 of rotating lifting gear hangs blocking rotary type level-sensing device 4, resistance rotation
Be suspended from formula level-sensing device 4 in sintered cup main body, there is graduated scale 13 on elevating lever 12,13 initial position of graduated scale in sintered cup body
6 upper end of grid section keeps horizontal.
The igniter shares a set of control device 7 with sintered cup control system；The control device 7, including data
Processor and PID controller are connected by PID signal with sintered cup main body and igniter.
The igniter includes 1# igniters 1,2# igniters 2,1# and 2# igniters attachment device 3, the attachment device 3
Liftable and rotation；It can be achieved for the first time and during regnition using different igniters, improving production efficiency and extending igniter makes
With the purpose in service life.
The sintered cup main body 5, cross section be circular ring shape, internal diameter be 300mm~400mm, highly for 550mm~
1700mm。
The material position tests system, and including blocking rotary type level-sensing device 4 and rotating lifting gear 8, the blocking rotary type level-sensing device 4 is adopted
Principle, contact measurement material position are controlled with electromechanical position.The rotating lifting gear 8 arbitrarily can rotate and lift, have quarter on elevating lever 12
Ruler is spent, it is horizontal that 6 upper end holding of grid section is put in graduated scale initial position and sintered cup body；Can realize in sintered cup main body for the first time and
The automatic of secondary material distributing sinter mixture charge level height accurately measures, and improves production efficiency.
A kind of super thick bed of material is pre-sintered the application method of device, starts material position test system, 13 start bit of graduated scale first
Put, the rotating lifting gear 8 of adjusting material position test system so that rotation and lifting horizontal with 6 upper end holding of grid section in sintered cup body
10 lower end of blade for the blocking rotary type level-sensing device that device 8 connects reaches presetting cloth bed depth for the first time, for the first time the cloth bed of material
Highly for 500mm-900mm, cloth for the first time is carried out into sintered cup main body 5, after predetermined cloth height for the first time to be achieved, stop cloth
Material, the power supply of cut-out blocking rotary type level-sensing device 4, and pass through and control rotating lifting gear 8 that blocking rotary type level-sensing device 4 is removed sintered cup master
Body 5 carries out igniting sintering to sintered cup using 1# igniters 1 or 2# igniters 2, rotation and lifting is adjusted after lighting a fire to setting time
Attachment device 3 removes igniter；After light a fire for the first time terminate >=8min after, carry out secondary material distributing, start material position test system, pass through
Material position tests the rotating lifting gear 8 of system so that 10 lower end of blocking rotary type level-sensing device blade is apart from 8 graduated scale of rotating lifting gear
The height of initial position is identical with sinter mixture bed of material total height, and secondary material distributing is carried out into sintered cup main body 5, to be achieved pre-
The bed of material total height of setting stops cloth, and sinter mixture bed of material total height >=1000mm uses 2# igniters 2 or 1# igniters
1 carries out igniting sintering, and rotation and lifting attachment device 3 is adjusted after setting time of lighting a fire and removes igniter, after process to be sintered
Pour out finished product sinter.
Embodiment 1
A kind of super thick bed of material is pre-sintered device, as shown in Figure 1.Sintered cup interior diameter is 330mm, is highly 1000mm, prolongs
Its short transverse is distributed temperature thermocouple.System is tested equipped with material position, including blocking rotary type level-sensing device 4, connects its rotation and lifting dress
It puts 8 and indicates graduated scale, graduated scale initial position keeps horizontal with grid section upper end in sintered cup body, can automatically detect in sintered cup body
Sinter mixture charge level height.Igniter includes 1# igniters 1,2# igniters 2,1#2# igniter rotation and liftings attachment device 3
It can arbitrarily rotate and lift, it can be achieved that using different igniters for the first time and during regnition, improving production efficiency can simultaneously extend a little
Firearm service life.
A kind of super thick bed of material is pre-sintered the application method of device, material position is tested system energization first, by adjusting its rotation
Turn lifting gear 8 so that the blade lower end of blocking rotary type level-sensing device is apart from 8 graduated scale initial position 650mm of rotating lifting gear, warp
Dispensing-mixing-granulation-grate-layer material technique is crossed, cloth for the first time, predetermined cloth height for the first time to be achieved are carried out into sintered cup
Stop cloth, 4 power supply of cut-out blocking rotary type level-sensing device, and be moved out sintered cup, lighted a fire using 1# igniters 1 to sintered cup
1.5mins is sintered, 1#2# igniter rotation and liftings attachment device 3 is adjusted after igniting and removes igniter, is sintered cup body at this time
Interior sinter mixture charge level highly reaches 650mm.After lighting a fire terminate 8mins for the first time, secondary material distributing is carried out immediately, it is to be achieved pre-
Determine bed of material total height and stop cloth, adjust 1#, 2# igniter rotation and lifting attachment device 3 and carry out a baked wheaten cake using 2# igniters 2
1.5mins is tied, 1#2# igniter rotation and liftings attachment device 3 is adjusted after igniting and removes igniter, at this time in sintered cup body
Sinter mixture charge level total height reaches 1000mm.Temperature thermocouple temperature variations are observed, are fallen after process to be sintered
Go out finished product sinter, sinter is crushed, be sintered ore deposit detection and analysis, the results are shown in Table 1.
1 sintering test indices of table
As shown in Table 1, the finished product sinter items sintering index by this method production is preferable, can meet blast fumance
To the quality requirement of sinter.
Embodiment 2
A kind of super thick bed of material is pre-sintered device, as shown in Figure 1.Sintered cup internal diameter is sintering cup test device, in sintered cup
A diameter of 330mm is highly 1200mm, prolongs its short transverse distribution temperature thermocouple.System is tested equipped with material position, is revolved including resistance
Formula level-sensing device 4 connects its rotating lifting gear 8 and indicates graduated scale, and graduated scale initial position is protected with grid section upper end in sintered cup body
Water holding is put down, and can detect sinter mixture charge level height in sintered cup body automatically.Igniter include 1# igniters 1,2# igniters 2,
1#2# igniter rotation and liftings attachment device 3 can arbitrarily be rotated and be lifted, it can be achieved that using for the first time and during regnition and not having to point
Firearm, igniter service life can simultaneously be extended by improving production efficiency.
A kind of super thick bed of material is pre-sintered the application method of device, material position is tested system energization first, by adjusting its rotation
Turn lifting gear 8 so that blocking rotary type level-sensing device blade lower end is passed through apart from 8 graduated scale initial position 850mm of rotating lifting gear
Dispensing-mixing-granulation-grate-layer material technique, cloth for the first time is carried out into sintered cup, and predetermined cloth for the first time to be achieved highly stops
Only cloth, 4 power supply of cut-out blocking rotary type level-sensing device, and sintered cup is moved out, a baked wheaten cake is carried out to sintered cup using 1# igniters 1
1.5mins is tied, 1#, 2# igniter rotation and lifting attachment device 3 is adjusted after igniting and removes igniter, at this time in sintered cup body
Sinter mixture charge level highly reaches 850mm.After lighting a fire terminate 18mins for the first time, secondary material distributing is carried out immediately, reaches predetermined
Bed of material total height stops cloth, it adjusts 1#2# igniter rotation and liftings attachment device 3 and carries out igniting sintering using 2# igniters 2
1.5mins adjusts 1#2# igniter rotation and liftings attachment device 3 and removes igniter, burnt in sintered cup body at this time after igniting
Knot mixture charge level total height reaches 1200mm.Temperature thermocouple temperature variations are observed, are poured out after process to be sintered
Finished product sinter, crushes sinter, is sintered ore deposit detection and analysis, the results are shown in Table 2.
2 sintering test indices of table
As shown in Table 2, by this method production finished product sinter items sintering index it is excellent, sintering solid burnup compared with
It is low, quality requirement of the blast fumance to sinter, while cost efficiency significant effect can be met.
Embodiment 3
A kind of super thick bed of material is pre-sintered device, as shown in Figure 1.Sintered cup internal diameter is sintering cup test device, in sintered cup
A diameter of 330mm is highly 1600mm, prolongs its short transverse distribution temperature thermocouple.System is tested equipped with material position, is revolved including resistance
Formula level-sensing device 4 connects its rotating lifting gear 8 and indicates graduated scale, and graduated scale initial position is protected with grid section upper end in sintered cup body
Water holding is put down, and can detect sinter mixture charge level height in sintered cup body automatically.Igniter include 1# igniters 1,2# igniters 2,
1#2# igniter rotation and liftings attachment device 3 can arbitrarily be rotated and be lifted, it can be achieved that using for the first time and during regnition and not having to point
Firearm, igniter service life can simultaneously be extended by improving production efficiency.
A kind of super thick bed of material is pre-sintered the application method of device, material position is tested system energization first, by adjusting its rotation
Turn lifting gear 8 so that blocking rotary type level-sensing device blade lower end is apart from 8 graduated scale initial position 1200mm of rotating lifting gear, warp
Dispensing-mixing-granulation-grate-layer material technique is crossed, cloth for the first time, predetermined cloth height for the first time to be achieved are carried out into sintered cup
Stop cloth, 4 power supply of cut-out blocking rotary type level-sensing device, and be moved out sintered cup, lighted a fire using 1# igniters 1 to sintered cup
1.5mins is sintered, 1#2# igniter rotation and liftings attachment device 3 is adjusted after igniting and removes igniter, is sintered cup body at this time
Interior sinter mixture charge level highly reaches 1200mm.After lighting a fire terminate 23mins for the first time, secondary material distributing is carried out immediately, reaches pre-
Determine bed of material total height and stop cloth, adjust 1#, 2# igniter rotation and lifting attachment device 3 and carry out a baked wheaten cake using 2# igniters 2
1.5mins is tied, 1#2# igniter rotation and liftings attachment device 3 is adjusted after igniting and removes igniter, at this time in sintered cup body
Sinter mixture charge level total height reaches 1600mm.Temperature thermocouple temperature variations are observed, are fallen after process to be sintered
Go out finished product sinter, sinter is crushed, be sintered ore deposit detection and analysis, the results are shown in Table 3.
3 sintering test indices of table
As shown in Table 3, by this method production finished product sinter items sintering index it is excellent, sintering solid burnup compared with
It is low, quality requirement of the blast fumance to sinter, while cost efficiency significant effect can be met.
Claims (1)
1. a kind of super thick bed of material is pre-sintered the application method of device, the super thick bed of material is pre-sintered device and includes igniter and sintering
Cup main body (5), the external setting temperature thermocouple (9) of sintered cup main body (5), igniter are fixed on rotation and lifting attachment device (3),
It is characterized in that：Grid section (6) built in the sintered cup main body (5), sintered cup main body (5) side setting material position test system, institute
It states material position test system and includes blocking rotary type level-sensing device (4) and rotating lifting gear (8), rotating lifting gear (8) is by elevating lever
(12) it is formed with crossbeam (11), elevating lever (12) and crossbeam (11) are inverted L-shaped, and crossbeam (11) the suspension resistance of rotating lifting gear is revolved
Formula level-sensing device (4), blocking rotary type level-sensing device (4) is interior to be suspended from sintered cup main body (5), is had graduated scale (13) on elevating lever (12), is carved
It spends ruler (13) initial position and keeps horizontal with sintered cup main body (5) interior grid section (6) upper end, the igniter shares one with sintered cup
Cover control device (7)；The igniter is 2；Sintered cup main body (5) cross section be circular ring shape, internal diameter for 300mm~
400mm is highly 550mm~1700mm；
The super thick bed of material is pre-sintered the application method of device, starts material position test system, graduated scale (13) initial position first
It keeps horizontal with grid section (6) upper end in sintered cup body, adjusts the rotating lifting gear (8) of material position test system so that rotation rises
Blade (10) lower end of the blocking rotary type level-sensing device of falling unit (8) connection reaches presetting cloth bed depth for the first time, for the first time cloth
Material bed depth is 500mm-900mm, and cloth for the first time, predetermined cloth height for the first time to be achieved are carried out to sintered cup main body (5) is interior
Afterwards, stop cloth, the power supply of cut-out blocking rotary type level-sensing device (4), and pass through and control rotating lifting gear (8) by blocking rotary type level-sensing device
(4) sintered cup main body (5) is removed, igniting sintering is carried out to sintered cup using 1# igniters (1) or 2# igniters (2), igniting is extremely
Rotation and lifting attachment device (3) is adjusted after setting time and removes igniter；After light a fire for the first time terminate >=8min after, carry out secondary cloth
Material starts material position test system, the rotating lifting gear (8) of system is tested by material position so that the blade of blocking rotary type level-sensing device
(10) height of the lower end apart from rotating lifting gear (8) graduated scale (13) initial position and sinter mixture bed of material total height phase
Together, secondary material distributing is carried out into sintered cup main body (5), presetting bed of material total height to be achieved stops cloth, sinter mixture
Bed of material total height >=1000mm carries out igniting sintering using 2# igniters (2) or 1# igniters (1), is adjusted after setting time of lighting a fire
Section rotation and lifting attachment device (3) removes igniter, and finished product sinter is poured out after process to be sintered.
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| CN201610815533.4A CN106498153B (en) | 2016-09-12 | 2016-09-12 | Super-thick material layer pre-sintering device and using method thereof |
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| CN201610815533.4A CN106498153B (en) | 2016-09-12 | 2016-09-12 | Super-thick material layer pre-sintering device and using method thereof |
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| CN106498153B true CN106498153B (en) | 2018-06-26 |
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| JPS62107033A (en) * | 1985-11-01 | 1987-05-18 | Sumitomo Metal Ind Ltd | Two-stage-ignition sintering method |
| JPH09209050A (en) * | 1996-02-05 | 1997-08-12 | Nippon Steel Corp | Manufacture of sintered ore by high layer thickness |
| CN201215501Y (en) * | 2008-06-19 | 2009-04-01 | 中冶华天工程技术有限公司 | Material thickness detecting device for sintering platform trolley |
| CN201285389Y (en) * | 2008-10-24 | 2009-08-05 | 重庆科技学院 | Iron ore powder sintering cup experiment device |
| CN201658890U (en) * | 2009-12-23 | 2010-12-01 | 李良国 | Dehydration device |
| CN201665659U (en) * | 2010-03-11 | 2010-12-08 | 宝山钢铁股份有限公司 | Level detector of coal charging car |
| CN204453435U (en) * | 2014-12-18 | 2015-07-08 | 重庆市华旭能源科技有限公司 | A kind of granular material level metering installation |
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