CN1416520A - Device for charging material into sintering machine - Google Patents
Device for charging material into sintering machine Download PDFInfo
- Publication number
- CN1416520A CN1416520A CN 01806264 CN01806264A CN1416520A CN 1416520 A CN1416520 A CN 1416520A CN 01806264 CN01806264 CN 01806264 CN 01806264 A CN01806264 A CN 01806264A CN 1416520 A CN1416520 A CN 1416520A
- Authority
- CN
- China
- Prior art keywords
- aforementioned
- sintering machine
- connecting rod
- chute
- pallet
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0033—Charging; Discharging; Manipulation of charge charging of particulate material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
- F27B21/06—Endless-strand sintering machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A device for charging material into sintering machine, comprising a feeder for feeding material for sintering, a roller feeder disposed under the feeder and feeding the material for sintering downward, and a grain size segregating and charging mechanism for adjusting the status of distribution, on the pallet of the sintering machine, of the charged sintering material fed from the roller feeder.
Description
Technical field
The present invention relates to a kind ofly making continuously on the sintering machine of sintering deposit the device for charging material into of the sintering feed of packing into.
Background technology
Generally make with the following method with the sintering deposit that raw material uses as blast furnace.
The sintering feed that granulates by funnel by certain bed thickness for example about 500-700mm the bed thickness of height be supplied in the pallet of sintering machine continuously.The raw material of wood-charcoal of firing point stove skin section afterwards, limit force to be blown into air limit burning raw material of wood-charcoal from the below.The combustion heat sintering sintering deposit raw material that produces when utilizing burning forms agglomerate.The agglomerate that burns till is like this carried out fragmentation, cooling processing.The part that reach quality standards of cooling back screening more than 3-5mm packed into as the finished product sintering deposit in the blast furnace.The following powdery sintering deposit of the 3-5mm that produces in off quality and broken, the screening process is as returning mine once more as sintering feed.
That makes like this has a significant impact the stability of load decline state in the blast furnace operation, the tools such as logical fluidity, reduction efficiency and high temperature proterties of ventilating as the quality of blast furnace with the sintering deposit of raw material.So need to improve the quality of sintering deposit, in order to reduce its manufacturing cost, improve the yield rate of sintering deposit when carrying out strict quality control.
The high-quality of above-mentioned sintering deposit kept, and one of essential condition that the minimizing of the keeping of high finished product rate, manufacturing cost and productivity improve is suitably to adjust size distribution and component distributing in the layer of sintering feed of the sintering machine pallet of packing into.By size distribution and component distributing in the suitable adjustment layer, guarantee to have the interior aeration of raw material layer of height about 500-700mm, can suitably control the molten sintering reaction of the sintering feed that utilizes its combustion heat when promoting the raw material of wood-charcoal burning.Therefore, the raw material of size distribution and the component distributing technical scheme of packing into had been proposed much can to adjust in the layer of sintering feed of the pallet of packing in the past.
For example real fair 3-43599 communique has been put down in writing device for charging material into as shown in figure 11.Sintering feed 3 is sent by roll-type feeder 2 from funnel 1.The sintering feed 3 that falls descends from relative roll-type feeder 2 downward-sloping tabular chutes 4.On extended line below the tabular chute 4, have a plurality of ropes or the connecting rod 5 of certain intervals, form a plurality of slit-likes gap 7 by the horizontally set of sintering machine 6.The sintering feed of downhill race drops on the sintering machine pallet 6 for 7 times by its a plurality of slit-likes gap, forms the certain thickness bed of material 8.Above-mentioned have certain intervals to form the below incline direction of particle segregation loading mechanism 9 of a plurality of slit-likes gap 7 structures opposite with the moving direction (the flechette-type symbol x direction among Figure 11) of sintering machine pallet 6.Slit-like gap 7 tabular chute 4 sides up are narrower, below sintering machine pallet 6 side broads.The sintering feed size distribution of the bed of material 8 inside of pallet 6 can be adjusted into lower layer part accumulation coarse grain so pack into, and upper layer part is piled up particulate (to call prior art 1 in the following text).
As other examples, the spy opens flat 8-311568 communique and has proposed device for charging material into as shown in figure 12.Sintering feed 3 is sent by roll-type feeder 2 from funnel 1.The sintering feed that falls drops on the roller feeder 10, and its roller feeder 10 is arranged on the below of aforementioned roll-type feeder 2 and the opposite spin that falls facing to sintering feed.Tilt downwards from the front of this roller feeder 10 and downwards on the curved surface of broad warp, have a plurality of ropes or the connecting rod 5 of certain intervals, form a plurality of slit-likes gap 7 at the horizontally set of sintering machine 6.The sintering feed that reduces by above-mentioned roller feeder 10 fallings speed drops on the sintering machine pallet 6 for 7 times from a plurality of slit-likes gap, forms the certain thickness bed of material 8.Having above-mentioned certain intervals, to form the below incline direction of particle segregation loading mechanism 9 of a plurality of slit-likes gap 7 structures opposite with the moving direction (the flechette-type symbol x direction among Figure 12) of sintering machine pallet 6.And slit-like gap 7 roller feeder 10 sides up are narrower, below sintering machine pallet 6 side broads.The sintering feed size distribution of the bed of material 8 inside of pallet 6 can be adjusted into lower layer part accumulation coarse grain so pack into, and upper layer part is piled up particulate (to call prior art 2 in the following text).
As mentioned above, prior art 1 and 2 granularities for the sintering feed of the bed of material 8 inside of the sintering machine pallet 6 of packing into can form lower layer part and pile up coarse grain, and upper layer part is piled up the size distribution of particulate.But as for component distributing adjustment in the layer of the bed of material 8 inside, the technology of charging feedstock in sintering machine pallet 6 in above-mentioned prior art 1 and the conventional arts such as 2 can not be adjusted the constituent of its sintering feed, for example distributes in the layer of the CaO in raw material of wood-charcoal such as solid fuel powdery coke or the slag composition etc.
The raw material feed device of the continuous bend chute of Te Kaiping 8-311568 communique record can prevent the phenomenon of coming down in torrents, but exist be difficult to grasp particle rapidity is provided with crooked curvature balance with connecting rod and before inadequate problem of classification that has a raw material particle and the terminal that arrives chute all particles from the problem of whereabouts, connecting rod gap.
Summary of the invention
The purpose of this invention is to provide a kind ofly,, can obtain the device for charging material into of the sintering machine of high-quality, high finished product rate, high yield by improving the adjustment of component distributing at the size distribution in the bed of material of sintering machine pallet.
The device for charging material into of the sintering machine of the particle segregation loading mechanism that in order to achieve the above object, the invention provides the roller feeder that has the feeder of sending sintering feed, be arranged on aforementioned feeder below, is arranged on aforementioned roller feeder below.
Aforementioned roller feeder is accepted the aforementioned sintering feed of this feeder supply and this sintering feed is sent downwards.Aforementioned roller feeder is made of a plurality of rollers with axial line, this axial line be arranged on the perpendicular direction of the moving direction of aforementioned sintering machine pallet on.
Aforementioned particle segregation loading mechanism is adjusted pack into the distribution of sintering machine pallet of aforementioned sintering feed that this roller feeder supplies with.
Aforementioned particle segregation loading mechanism is made of a plurality of linearity connecting rods or linearity steel wire rope, the perpendicular direction of direction that the axial line of this linearity connecting rod or linearity steel wire rope is preferably disposed on and aforementioned sintering feed is supplied with to this particle segregation loading mechanism, and with the perpendicular direction of the moving direction of aforementioned sintering machine pallet on.
This linearity connecting rod or linearity steel wire rope are preferably crooked and form the curved surface shape towards the moving direction of aforementioned sintering machine pallet.And the interval of adjacent connecting rod or steel wire rope preferably broadens from top to the bottom gradually.
Foregoing invention is carried out reference as embodiment 1.
The invention provides by the raw material supplying mechanism that supplies with sintering feed to pallet, reach upper end near the aforementioned base materials feed mechanism, lower end above aforementioned pallet, the device for charging material into of the sintering machine that the chute that tilts to the opposite direction of aforementioned pallet moving direction constitutes.
Aforementioned chute is made of a plurality of connecting rods that transversely be arranged in parallel at regular intervals to the lower end from its upper end of aforementioned pallet, forms the shape of concave shape bending from its upper end to the lower end.
The changes in pitch rate mean value of the adjacent connecting rod of connection of upper end side 1/3 scope of the cross-directional length of aforementioned chute is 1.5 times to 10 times of changes in pitch rate mean value of lower end side 2/3 corresponding scope.
Foregoing invention is carried out reference as embodiment 2.The aforementioned particle segregation loading mechanism that the chute of embodiment 2 can be used as embodiment 1 uses.As the raw material supplying mechanism of embodiment 2, can use the feeder and the roller feeder of embodiment 1.
And then the invention provides by the raw material supplying mechanism that supplies with sintering feed to pallet, and the upper end close on the aforementioned base materials feed mechanism, lower end above the aforementioned pallet, the device for charging material into of the sintering machine that the chute that tilts to the opposite direction of the moving direction of aforementioned pallet constitutes.
Aforementioned chute is made of a plurality of connecting rods that transversely be arranged in parallel at regular intervals to the lower end from its upper end of aforementioned pallet.On aforementioned chute top, the vertical direction projection gap that the raw material of whereabouts collides between aforementioned a plurality of connecting rods in the zone roughly is constant.
Foregoing invention is carried out reference as embodiment 3.The aforementioned particle segregation loading mechanism that the chute of embodiment 3 can be used as embodiment 1 uses.As the raw material supplying mechanism of embodiment 3, can use the feeder and the roller feeder of embodiment 1
Description of drawings
Fig. 1 is the vertical cross-section sketch of device for charging material into of the sintering machine of embodiment 1.
Fig. 2 is the enlarged drawing of the roller feeder of Fig. 1.
Fig. 3 is the front sketch of particle segregation loading mechanism among Fig. 1.
Fig. 4 is the A-A alignment view of Fig. 3.
Fig. 5 is the figure of the particle segregation degree of embodiment in the expression embodiment 1.
Fig. 6 is the figure of the coke degree of segregation of embodiment in the expression embodiment 1.
Fig. 7 is the figure of the particle segregation degree of comparative example in the expression embodiment 1.
Fig. 8 is the figure of the coke degree of segregation of comparative example in the expression embodiment 1.
Fig. 9 is the figure of productivity ratio in each crucible test of embodiment, comparative example in the expression embodiment 1.
Figure 10 is the figure of yield rate in each crucible test of embodiment, comparative example in the expression embodiment 1.
Figure 11 (a) is the vertical cross-section sketch of an example in the device for charging material into of representing sintering machine in the past.
Figure 11 (b) is the slit-like clearance mode figure of the segregation loading mechanism of expression device for charging material into.
Figure 12 represents other routine vertical cross-section sketches of the device for charging material into of sintering machine in the past.
Figure 13 is the vertical cross-section diagram of the device for charging material into of sintering machine among the expression embodiment 2-1.
Figure 14 is the front elevation of the chute of device for charging material among the expression embodiment 2-1.
Figure 15 is the A-A line sectional view of Figure 14.
Figure 16 is the vertical cross-section diagram of the device for charging material into of sintering machine among the expression embodiment 2-2.
Figure 17 is the vertical cross-section diagram of the device for charging material into of sintering machine among the expression embodiment 2-3.
Figure 18 is the vertical cross-section diagram of the device for charging material into of sintering machine among the expression embodiment 2-4.
Figure 19 is the coordinate diagram of distance between the adjacent connecting rod of the chute of use in the expression embodiment 2.
Figure 20 is the coordinate diagram of the pattern curve of chute among the embodiment of expression embodiment 2.
Figure 21 is the coordinate diagram of the pattern curve of chute in the comparative example 1 of expression embodiment 2.
Figure 22 is the coordinate diagram of the pattern curve of chute in the comparative example 2 of expression embodiment 2.
Figure 23 (a) is the coordinate diagram of the CaO ratio in the bed of material of embodiment in the expression embodiment 2.
Figure 23 (b) is the coordinate diagram of the CaO ratio in the bed of material of comparative example 1 in the expression embodiment 2.
Figure 23 (c) is the coordinate diagram of the CaO ratio in the bed of material of comparative example 2 in the expression embodiment 2.
Figure 24 (a) is the coordinate diagram of the ratio of average grain diameter in the bed of material of embodiment in the expression embodiment 2 and C.
Figure 24 (b) is the coordinate diagram of the ratio of average grain diameter in the bed of material of comparative example 1 in the expression embodiment 2 and C.
Figure 24 (c) is the coordinate diagram of the ratio of average grain diameter in the bed of material of comparative example 2 in the expression embodiment 2 and C.
Figure 25 is the vertical cross-section diagram of device for charging material among the expression embodiment 3-1.
Figure 26 is the vertical cross-section diagram of chute in the device for charging material into of expression embodiment 3-1.
Figure 27 is the A-A line sectional view of Figure 26.
Figure 28 is the vertical cross-section diagram of device for charging material among the expression embodiment 3-2.
Figure 29 is the vertical cross-section diagram of device for charging material among the expression embodiment 3-3.
Figure 30 is the coordinate diagram in the upright projection gap between the adjacent connecting rod of chute in the expression embodiment 3.
Figure 31 is the OC coordinate diagram of connecting rod between the adjacent connecting rod of chute in the expression embodiment 3.
Figure 32 is the coordinate diagram of the pattern curve of the chute of embodiment in the expression embodiment 3.
Figure 33 is the coordinate diagram of the pattern curve of the chute of comparative example in the expression embodiment 3.
Figure 34 (a) is the average grain diameter in the bed of material among the method representation embodiment 3 that compares with comparative example with embodiment and the coordinate diagram of C ratio.
Figure 34 (b) is the coordinate diagram of the ratio of the CaO in the bed of material among the method representation embodiment 3 that compares with comparative example with embodiment.
The specific embodiment [embodiment 1]
The present invention finds that there is difference of specific gravity in each particle of sintering feed according to the main component that constitutes its particle is different, utilizes this difference in specific gravity can adjust component distributing in the bed of material of sintering machine pallet.In order to apply flexibly this discovery, had after certain particle size constitutes the sintering feed that constitutes with composition and send by certain feeder in the past, it is blocked, give after certain motion state the below of its sintering feed, as utilizing before the particle segregation of sintering feed size distribution packs into by the particle segregation device as described in prior art 1 or the prior art 2, utilize difference in specific gravity, import the new construction that changes heterogeneity particle movement velocity.
The present invention finishes with the above-mentioned basis that is found to be, and its main points are as follows.
The device for charging material into of sintering machine has the feeder that sintering feed is sent usefulness, close on the below that is arranged on its feeder, adjust sintering feed motion state downwards when accepting sintering feed that feeder supplies with and supply with the roller feeder of sintering feed downwards, be arranged on the below of this roller feeder, will pack on the sintering machine pallet and adjust the particle segregation charging apparatus of its distribution of packing into by the above-mentioned sintering feed that its roller feeder is supplied with.The above-mentioned rollers feeder is made of a plurality of rollers or swing roller, and the axial line of its roller or swing roller is vertical with the above-mentioned sintering feed way roller feeder direction of the supply and with vertical setting of above-mentioned sintering machine pallet moving direction.
As mentioned above, the sintering feed that feeder above being arranged on is sent, the roller feeder that constitutes with a plurality of rollers or swing roller blocks, this moment is by suitably reducing the diameter of a plurality of rollers or swing roller, adjust its rotary speed, can suitably adjust the bed thickness of the sintering feed that the sintering feed decrease speed blocked and a plurality of roller or swing roller support, and under such condition, move with friction speed according to the difference in specific gravity of particle in the layer of this sintering feed.Its decrease speed of heavy particle can become big when for example accelerating the rotary speed of roller or swing roller, fall by the connecting rod or the gap between the steel wire rope of the particle segregation charging apparatus below being arranged on from the bottom, major part is distributed in the lower layer part of the bed of material of sintering machine pallet.
Device for charging material into for above-mentioned sintering machine, the particle segregation loading mechanism is made of a plurality of linearity connecting rods or linearity steel wire rope, the axial line of this linearity connecting rod or linearity steel wire rope be arranged on the direction of supplying with to this particle segregation loading mechanism with aforementioned sintering feed vertical and with the perpendicular direction of the moving direction of aforementioned sintering machine pallet, and the screen shape towards the moving direction decline form of above-mentioned sintering machine pallet preferably is arranged in the arrangement of its linearity connecting rod or linearity steel wire rope.
By a plurality of linearity connecting rods or linearity steel wire rope that the screen shape towards the moving direction decline form of sintering machine pallet is provided with, the connecting rod that it is adjacent or the gap of steel wire rope preferably broaden from top to the bottom gradually.
Fig. 1 is the vertical cross-section sketch of device for charging material into of the sintering machine of embodiment 1.As shown in the figure, the sintering feed 3 that falls laterally the sending even amount of roll-type feeder 2 from funnel 1 is set at below the roll-type feeder 2, accepts to the roller feeder of being made up of a plurality of path rollers 11 12 of the opposite spin of its sintering feed 3 falling directions.Fig. 2 is the enlarged drawing of roller feeder 12 among Fig. 1.Roller feeder 12 is made up of the path roller 11 of 5 same diameter in example 1,2, with accept sintering feed 3 directions vertical and with vertical setting of moving direction of sintering machine pallet, the upper face side tangent line of each path roller 11 is on same plane P.Path roller 11 is to become certain inclined angle alpha to be provided with by plane P.The setting of the gap beta between each path roller 11 is narrower, and its direction of rotation is opposite with the falling direction of sintering feed 3, and the sintering feed 3 that is written into roller feeder 12 can not missed from the gap between the path roller 11.And because of path roller 11 rotates all the time, so sintering feed 3 be difficult to relatively adhere in its surface, near the bottom of each path roller 11 be provided with prevent that raw material from adhering to scrape the raw material member.
The feature functionality of this roller feeder 12 can change the decrease speed of the sintering feed 3 that is written into roller feeder 12 easily by each for the rotary speed of adjusting path roller 11.By adjusting the decrease speed of the sintering feed 3 on the roller feeder 12, it is poor that the difference in specific gravity of the particle of utilization formation sintering feed 3 can enlarge decrease speed.The simulation particle that for example contains the volume iron ore in the sintering feed 3 than the simulation particle that contains volume powdery coke than great, improve to constitute the rotary speed of the path roller 11 of roller feeder 12, the decrease speed of sintering feed 3 is faster than the simulation particle that contains volume powdery coke, arrive quadrate part down by the particle segregation loading mechanism 9 that is arranged on roller feeder 12 belows continuously, its result, the simulation particle abundance of weight that the lower layer part of sintering machine pallet 6 contains the volume iron ore is many, and the light simulation particle abundance that contains volume powdery coke is few.Can adjust the component distributing in the bed of material 8 of sintering machine pallet 6 like this.
The below of roller feeder 12 closes on being provided with particle segregation loading mechanism 9 on its extended line.The upper end of particle segregation loading mechanism 9 is near the lower end of roller feeder 12, the lower end is near sintering machine pallet 6, it is the plane inclined shape that global shape is top, the bottom is mild convexly curved inclination curved surface shape downwards, and certain intervals is pressed a plurality of slit-likes of a plurality of connecting rods 14 formation of the horizontally set gap 7 of sintering machine pallet 6 on its face.Global shape can be mild convexly curved inclined plane downwards, perhaps can be the integral inclination plane.Fig. 3 is the front sketch of particle segregation loading mechanism among Fig. 1, and Fig. 4 is the A-A alignment view of Fig. 3.Slit-like gap 7 roller feeder 12 sides up are narrower, below sintering machine pallet 6 side broads.15 is the connecting elements of a plurality of connecting rods 14, makes a plurality of connecting rods 14 keep certain clearance 7 as mentioned above, and connects on the crooked as mentioned above curved surface.And each connecting rod 14 has the structure that can slide at length direction, suitably slides in order to scrape the sintering feed 3 that adheres on the surface of connecting rod 14 with connecting elements 15, removes the obstruction in slit-like gap 7.
Particle segregation loading mechanism 9 is accepted to adjust the sintering feed 3 that decrease speed is sent by roller feeder 12.Coarse fodder in the sintering feed 3 drops on the sintering machine pallet 6 under the bottom of the particle segregation loading mechanism 9 of slit-like gap 7 broads, so the lower floor at the bed of material 8 distributes more, on the other hand, fines drops on the sintering machine pallet 6 under the top of the narrower particle segregation loading mechanism 9 in slit-like gap 7, so distribute more on the upper strata of the bed of material 8.Size distribution adjustment in the bed of material 8 of the sintering machine pallet 6 by particle segregation loading mechanism 9 is that the angle of inclination or the flexibility of the global shape by adjusting particle segregation loading mechanism 9 changes.
Change as the various factors of apparatus of the present invention practicality difference according to equipment scale and form, but most of following ranges that is fit to.＜roller feeder 〉
The diameter of path roller: 100-200mm
The length of path roller: 2-6m
The number of path roller: 3-8
Gap between the path roller (β): 5-15mm
The inclination angle of roller feeder (α): 50-60 degree
The rotation number of path roller: 2-15rpm
＜particle segregation charging apparatus 〉
Connecting rod diameter: 8-15mm
Length of connecting rod: 2-6m (effective width that is equivalent to pallet)
The inclination angle of global shape upper flat face: 50-60 degree
The number of connecting elements (carriage): 2-6
Interval between the connecting elements: 500-1500mm[embodiment]
(layer thickness of packing into: 500mm) sintering feed 3 to 6 supplies of sintering machine pallet for the small-sized analogue means of use this embodiment of the present invention shown in Fig. 1-4 (the about 50cm of effective width).And under the state that keeps its charging feedstock, carried out the crucible test.
1. embodiment device roller feeder 12 is constructed as follows.
The diameter of path roller: 150mm
The number of path roller: 5
Gap between the path roller (β): 10mm
The inclination angle of roller feeder (α): 50-60 degree
The rotating speed of path roller: between 2- 15rpm 2,7,10,4 benchmark of 15rpm are implemented
2. embodiment device particle segregation loading mechanism 9 is constructed as follows.
The diameter of connecting rod: 11mm
The number of connecting rod
The plane part on top: 12
The bending part of bottom: 10
Slit-like gap (floor projection at interval arbitrarily)
The plane part on top: 17.3mm
The epimere part of lower knuckle shape part: 22.5mm
The hypomere part of lower knuckle shape part: 36.0mm
The inclination angle of global shape upper plane part: 55 degree
The sweep of whole present situation bottom: radius is the circular arc [comparative example] of 680mm
In order to compare, use existing method example shown in Figure 12 with the similar analogue means of embodiment, supply with sintering feed 3 to the sintering machine pallet.Afterwards, the raw material of supplying with is carried out the crucible test identical with embodiment.
1. the roller feeder 10 of comparative example device is constructed as follows.
The diameter of cylinder: 400mm
The rotating speed of cylinder: 7,10rpm
2. the formation of comparative example device particle segregation loading mechanism 9 is identical with the particle segregation loading mechanism 9 of the 2. device for carrying out said of [embodiment].
The device that the foregoing description is used in Fig. 5-6 (changing base value=5 of the rotating speed of the path roller among the embodiment) expression to the sintering machine pallet with 2.0t/hm
2The distribution of C content in the average particle size distribution of sintering feed and the bed of material on the bed thickness direction of the bed of material in the pallet when packing sintering feed into.
The device that above-mentioned comparative example is used in Fig. 7-8 (changing base value=2 of the roller rotation number in the comparative example) expression to the sintering machine pallet with 2.0t/hm
2The distribution of C content in the average particle size distribution of sintering feed and the bed of material on the bed thickness direction of the bed of material in the pallet when packing sintering feed into.Fig. 9-10 represents embodiment, productivity of sinter and yield rate under each condition of comparative example.
As above-mentioned Fig. 5-embodiment of the invention shown in Figure 10 compare particle segregation with comparative example, the segregation of C concentration is strengthened, and has improved productivity ratio and yield rate.
As mentioned above, can adjust size distribution and component distributing in the bed of material of sintering machine pallet according to embodiments of the invention, and than the more effective target distribution that is adjusted to of the comparative example of prior art.In the narrow space between sintering machine equipment intermediate roll feeder 2 and the particle segregation loading mechanism 9 in the past and the roller feeder 10 of big footpath roller can not be set, but the roller feeder of being made up of a plurality of path rollers 11 12 of apparatus of the present invention can be set, can reach at the equipment of existing sintering machine equipment and strengthen.
Present inventors observe the changes in pitch rate (conceptive is the second-order differential value of chute pattern curve) that connects the straight line between the adjacent connecting rod, find that the changes in pitch rate is set in certain limit, its speed descends and also becomes suitably when can change the direction of advance of particle, by the total length of chute particle is evenly disperseed to fall.
The device for charging material into of the sintering machine of embodiment 2 by the raw material supplying mechanism that supplies with sintering feed to pallet, and the upper end close on the aforementioned base materials feed mechanism, lower end is above the aforementioned pallet, and the chute that tilts with the opposite direction of the moving direction of aforementioned pallet constitutes.Aforementioned chute is made of a plurality of connecting rods that transversely be arranged in parallel at regular intervals to the lower end from its upper end of aforementioned pallet, forms the shape of concave shape bending from its upper end to the lower end.The changes in pitch rate mean value of the adjacent connecting rod of connection of the upper end side 1/3 corresponding scope of the cross-directional length of aforementioned chute is 1.5 times to 10 times of changes in pitch rate mean value of lower end side 2/3 corresponding scope.
Raw material is by the chute appropriate amount that falls in this embodiment 2, and the device length direction of chute (direction of advance of the raw material particle and the pallet of packing into) is gone up the amount that falls and disperseed.Thereby can obtain big segregation and the bed of material of the density of suitably packing into, can improve sintering finished rate and productivity ratio.
Device for charging material into to embodiment 2-1 describes with reference to the accompanying drawings.Figure 13 is the vertical cross-section sketch of device for charging material into.This device for charging material into is provided with raw material supplying mechanism and the chute 114 to pallet 105 base feeds 107.
Device for charging material into is by forming to the belt-type feeder 103 that the direction of arrow moves at the even charging feedstock 107 of width and with raw material 107.
Figure 14 is the front elevation of chute, and Figure 15 is an A-A line sectional view among Figure 14.Chute 114 forms the slit-like of a plurality of connecting rods 115 compositions that keep certain intervals mutually to the lower end from its upper end and be arranged in parallel on the width of pallet 105.Also comprise wire-like members such as steel wire rope in the connecting rod.This chute 114 forms mild concave shape from top to bottom.The changes in pitch rate mean value of the adjacent connecting rod 115 of connection of upper end side 1/3 range L 1 of this chute 114 corresponding cross-directional length L is 1.5 times to 10 times of changes in pitch rate mean value of corresponding lower end side 2/3 range L 2.Connecting elements 116 keeps certain interval to be interconnected to constitute a plurality of connecting rods 115 of chute 114.This connecting elements 116 keeps certain intervals for example to install 4 on the width of connecting rod 115.General chute 114 upper end side 114a are littler than lower end side 114b in the gap of connecting rod 115, but also there is no need to expand to from top to the bottom identical size.The connecting rod of top and bottom middle part for example, a part of adjacent connecting rod gap lower side diminishes, and then the bottom can increase once more, is arranged to the connecting rod gap bigger than top.
A part of particle and connecting rod 115 collisions of raw material 107 downhill race of discharging by guiding groove 117 from the outlet side of belt-type feeder 103 raw material 107 to the chute 114 that forms concave shape the time are gradually to raising the direction of advance bending.At this moment, the changes in pitch rate mean value of the adjacent connecting rod 115 of connection of corresponding upper end side 1/3 range L 1 is bigger than the changes in pitch rate mean value of corresponding lower end side 2/3 range L 2, the state that is 1.5 times to 10 times specifically is provided with connecting rod 115, when can change the direction of advance of particle, its speed descends and also becomes suitably, by the total length of chute 114 particle is evenly disperseed to fall.Promptly the coarse component landing in the raw material of discharging by guiding groove 117 is on the chute of being made up of a plurality of connecting rods 115 114, and the remainder of coarse grain is supplied on the grid band 106 in the pallet 105 that moves continuously from whereabouts between a plurality of connecting rods 115 that constitute chute 114 bottoms.On the other hand, the particulate raw material falls from gap narrow between a plurality of connecting rods 115 that constitute chute 114 tops, is supplied on the grid band 106 in the pallet 105 that moves continuously.Thereby the raw material particle of vertical drop under chute 114 disperses to the device length direction.Supply with the coarse grain raw material so the 107a of lower floor in the pallet 105 goes up, upper strata 107b goes up and supplies with the particulate raw material, and the same particulate that becomes with top of particulate raw material layer.So form the bed of material of particle segregation.And by segregation, C and CaO in the bed of material increase from the lower floor to the upper strata gradually, can make the high-quality sintering deposit by high finished product rate.Because raw material 107 disperses to fall, reduced the whereabouts of pallet 105 has been collided, can obtain the good bed of material of soft aeration of packing into.
Connect the straight line changes in pitch rate between the connecting rod center, be provided with on the curve of function definition the time, can calculate with the second-order differential value of each connecting rod center of this function at connecting rod.The connecting rod center function definition of no use is set the time also can simply utilize following formula 1 to calculate.
Rate of change and definite connecting rod setting from following formula 1 is calculated adjacent 3 connecting rod center gradients can reach effect of the present invention.
And the method for simply calculating is by 3 definition, so the connecting rod at chute two ends can not calculated the changes in pitch rate.Be that the chute that n connecting rod constitutes has the changes in pitch rate that n-2 is ordered, consider that the scope of horizontal direction is calculated mean value.The validity of this connecting rod setting obtains by flow stock on the connecting rod, so the scope when being arranged on the connecting rod of the position that raw material can not flow and being not included in the horizontal direction of considering chute.
Therefore when the changes in pitch rate mean value of the adjacent connecting rod 115 of connection of corresponding upper end side 1/3 range L 1 was than big 10 times of the changes in pitch rate mean value of corresponding lower end side 2/3 range L 2, the excessive and all raw material of the deceleration of particle all fell from the middle part of chute 114.And during less than 1.5 times, in the range L 1 of chute upper end side 1/3 deceleration of particle little, particle advances with big downhill race speed on lower end side 2/3 range L 2.The mean value of changes in pitch rate is littler than the mean value of range L 1 heavy changes in pitch rate in the range L 2, so the effect of can not being slowed down fully, the ratio that particle falls from the gap between the connecting rod 115 descends, and most of particle is sent from the lower end of chute 114.
And the direction of advance of change particle, particle is not slowed down, control is from the particle ratio of the whereabouts, gap of connecting rod 115, uniform particle falls under the chute 114, can adjust the gap of drop section area connecting rod 115, enlarge the gap all particles is fallen from the gap, can not obtain the bed of material of particle segregation.
Figure 16 represents the device for charging material into of embodiment 2-2.The raw material loading mechanism of this device for charging material into has the funnel 101 that opens and closes lock 101a by the lower sidewall of charging feedstock 107, and the roller feeder 102 that is arranged on funnel 101 lower ending opening places constitutes, and this point is different with above-mentioned embodiment 2-1.
Figure 17 represents the device for charging material into of embodiment 2-3.The lower sidewall that the raw material loading mechanism of this device for charging material into has charging feedstock 107 is provided with the funnel 101 that opens and closes lock 101a, be arranged on the roller feeder 102 at funnel 101 lower ending opening places, different with above-mentioned embodiment 2-2, have the roller feeder 118 that the oblique below of roller feeder 102 is provided with.Roller feeder 118 is arranged on the oblique below that opens and closes lock 101a.By the rotation of roller feeder 118, can adjust angle and subsidy speed that raw material enters chute.
Figure 18 represents the device for charging material into of embodiment 2-4.The lower sidewall that the raw material loading mechanism of this device for charging material into has charging feedstock 107 is provided with the funnel 101 that opens and closes lock 101a, is arranged on the roller feeder 102 at funnel 101 lower ending opening places, presses linearity setting a plurality of rollers 119 thereunder.Can adjust the angle that raw material enters chute by roller 119.
Embodiment
Compare the explanation embodiments of the invention with comparative example.By the base feed of device for charging material in pallet in a Figure 13 or the embodiment shown in Figure 15.The chute of this device is constructed as follows.
1. the pattern curve of chute:
Y＝-{(0.456+0.12X)}/0.06+11.26
In got the part of x 〉=0.X wherein, y is the cm value.
2. the diameter of connecting rod: 11.5mm
3. the number of connecting rod: 22
4. the interval of connecting rod: represent among Figure 19.Transverse axis is represented the connecting rod sequence number among this figure, and the longitudinal axis is represented the interval between the adjacent connecting rod (steel wire rope).The sequence number of connecting rod is by from top to bottom successively 1,2,3 ... 21 order is determined.It is littler than lower end side that upper end side is set at the interval of connecting rod, exceeds upper end side 1/3 range section and begin to broaden gradually.
During 5. [mean value that connects the changes in pitch rate between the adjacent connecting rod in upper end side 1/3 scope of corresponding cross-directional length]/[mean value that connects the changes in pitch rate between the adjacent connecting rod in lower end side 2/3 range L 2 of corresponding cross-directional length]=R,
R＝6.5
The pattern curve of chute is illustrated among Figure 20.Transverse axis is represented apart from the horizontal range (cm) of chute upper end among Figure 20, and the longitudinal axis is represented apart from the vertical direction distance (cm) of chute upper end.Among this figure as can be seen chute form parabola.
The chute that the following describes comparative example constitutes.At first, comparative example 1 is described.
1. the pattern curve of chute:
Y=0.012x
2Got the part of x 〉=0 among the-1.483x.X wherein, y is the cm value.
2. the diameter of connecting rod and connecting rod number are identical with embodiment
③R＝1.0
The pattern curve of the chute of comparative example 1 is illustrated among Figure 21.Transverse axis is represented apart from the horizontal range (cm) of chute upper end among Figure 21, and the longitudinal axis is represented apart from the vertical direction distance (cm) of chute upper end.Among this figure as can be seen chute form parabola.Comparative example and embodiment compare, and the changes in pitch rate of chute upper end side 1/3 corresponding scope is littler than the changes in pitch rate of chute lower end side 2/3 corresponding scope in the comparative example as can be seen.
The following describes comparative example 2.
1. the pattern curve of chute:
Y=50000/ (x+12)
3Got x 〉=0 part curve in-28.94.X wherein, y is the cm value.
2. the diameter of connecting rod and connecting rod number are identical with embodiment
③R＝88
The pattern curve of the chute of comparative example 2 is illustrated among Figure 22.Transverse axis is represented apart from the horizontal range (cm) of chute upper end among Figure 22, and the longitudinal axis is represented apart from the vertical direction distance (cm) of chute upper end.Among this figure as can be seen chute form 3 curves.Comparative example and embodiment compare, and the changes in pitch rate of chute upper end side 1/3 corresponding scope is compared very big with the changes in pitch rate of chute lower end side 2/3 corresponding scope in the comparative example as can be seen.
Figure 23, Figure 24 use the coordinate diagram of device proportionate relationship of the average grain diameter in layer direction height, the layer, C, CaO when the pallet base feed of the foregoing description and comparative example for expression.
Average grain diameter at first is described.The average grain diameter of embodiment becomes big successively from layer top to layer bottom.The particle diameter on layer top is about 4.5mm-2.5mm=2mm with the difference of the particle diameter of layer bottom.And the difference of the particle diameter of comparative example 1 is about 4.2mm-2.75mm=1.45mm.And the difference of the particle diameter of comparative example 2 is about 4.1mm-2.8mm=1.3mm.Thereby grading effect is good among the embodiment as can be seen, promptly can obtain the big bed of material of particle segregation.And embodiment has certain ratio from layer top to layer bottom, and for big average grain diameter, the increase ratio of the average grain diameter of comparative example 1 or comparative example 2 is that layer top changes with layer bottom.
The following describes the ratio of C.The C ratio of embodiment increases to layer top gradually from layer bottom.Layer bottom is about 3.75 weight %-3.1 weight %=0.65 weight % with the ratio difference on layer top.And the ratio difference of comparative example 1 is about 3.7 weight %-3.25 weight %=0.45 weight %.And the ratio difference of comparative example 2 is about 3.7 weight %-3.35 weight %=0.35 weight %.Thereby embodiment can obtain the big bed of material of C segregation as can be seen.And embodiment has certain ratio from layer top to layer bottom, and for big C ratio, the C ratio of comparative example 1 or comparative example 2 is that layer top changes with layer bottom.
The ratio of CaO is described at last.Figure 23 uses the coordinate diagram of the device proportionate relationship of the CaO in layer direction height, the layer when the pallet base feed of the foregoing description and comparative example for expression.The CaO ratio of embodiment increases to layer top gradually from layer bottom.Layer bottom is about 10.1 weight %-7.9 weight %=2.2 weight % with the ratio difference on layer top.And the ratio difference of comparative example 1 is about 9.6 weight %-8.2 weight %=1.4 weight %.And the ratio difference of comparative example 2 is about 9.6 weight %-8.5 weight %=1.1 weight %.Thereby embodiment can obtain the big bed of material of CaO segregation as can be seen.And embodiment has certain ratio from layer top to layer bottom, and for big CaO ratio, the rate of change of CaO ratio is that layer top changes with layer bottom in comparative example 1 or the comparative example 2.
Present inventors find that the raw material particle that falls collides the grading effect of the vertical direction projection gap affects raw material particle in connecting rod gap in the zone of chute, by determining the vertical direction projection gap in connecting rod gap, can prevent that the above coarse grain raw material of certain particle diameter leaked connecting rod in the raw material particle.Be that the present invention has solved the problems referred to above by a kind of device for charging material into, this device for charging material into is by the raw material supplying mechanism to the pallet base feed, and the setting of aforementioned base materials feed mechanism is closed in the upper end, lower end is above the aforementioned pallet, the chute that tilts to the opposite direction of the moving direction of aforementioned pallet constitutes, it is characterized in that aforementioned chute is made up of a plurality of connecting rods that keep certain intervals to the lower end from its upper end and be arranged in parallel on the width of aforementioned pallet, the projection gap on the vertical direction in the zone that the particle that falls in the top of aforementioned chute collides between aforementioned a plurality of connecting rods is constant.
According to the present invention, the bed of material on the pallet can selectively limit particulate with the particle that falls from the top of chute, thus can obtain big particle segregation, and then can to improve sintering finished rate be productivity ratio.At this moment, chute can form linearity, also can form concave shape.And also comprise wire-like members such as steel wire rope in the connecting rod.
Aforementioned chute is a feature to form concave shape from top to bottom among the present invention.
The device for charging material into of the linearity of chute formation in the past has following problem.The raw material downhill race is supplied in the pallet to the linearity chute of pressing the certain angle inclination.Therefore, it is big that the collision when dropping on pallet under the raw material and the angle of repose of raw material become, and produces the phenomenon of coming down in torrents, and the tomography of the bed of material takes place.Its result, C in the segregation of raw material layer direction and the subsidiary raw material layer thereof and the distribution of CaO become inhomogeneous.And produce the ventilation inequality on the tomography because of the phenomenon generation of coming down in torrents, thereby ratio defective product descends.And the downhill race excessive velocities of the particle on the downhill race chute, the grading effect of chute descends.The chute of being made up of a plurality of connecting rods according to the present invention is bent to form mild concave shape, can relax the impact of whereabouts raw material, also can prevent the phenomenon of coming down in torrents.And raw material further presses coarse grain and fine grading, can obtain suitable particle segregation in the pallet.
When by the screen shape of concave surface connecting rod being set, if distance is set certain value from the chute upper end for to the lower end between the center of adjacent connecting rod, the upright projection gap between the connecting rod just increases from top to bottom.Upright projection gap between this connecting rod as long as process does not reduce distance between the center of connecting rod from top to bottom, and increases that distance increases in the same manner between the center of connecting rod.If the upright projection gap between the connecting rod is elongated gradually from top to the bottom, the coarse grain raw material also can pass through from the gap in the zone that most of particle collides, and loses the grading effect by particle diameter.According to the present invention,,, can prevent that the coarse grain raw material more than certain particle diameter from missing from the gap between the connecting rod because the vertical direction projection gap between a plurality of connecting rods is set at steady state value in the zone that the raw material particle that falls collides even chute is bent to form concave shape.
And feature of the present invention be in the aforementioned areas connecting rod at interval at least a portion of (distance between the adjacent connecting rod center) is littler at interval than the connecting rod of aforementioned areas lower end side.
The projection interval of vertical direction is provided with the lower end side in certain zone among the present invention, and the connecting rod connecting rod than above-mentioned zone at interval is big at interval.The bottom of chute, the coarse grain raw material falls from the gap between the connecting rod, so can improve particle segregation.
And then feature of the present invention is that the connecting rod of aforementioned areas lower end side is arranged to become big along with advancing downwards at interval, and the connecting rod of the lower end of aforementioned chute is set for bigger at interval than the connecting rod of aforementioned areas at interval.
When particularly the concave shape bending was provided with connecting rod, air line distance between the connecting rod was arranged to connect in the zone of certain value along with shortening downwards in the vertical direction projection gap between the connecting rod.And the lower end side in the zone of certain value is arranged in vertical direction projection gap among the present invention, along with advancing downwards, distance between the center of connecting rod becomes big, and it is also bigger at interval than the connecting rod of above-mentioned zone in the chute lower end, so along with advancing downwards, the particle that particle diameter is big can fall, and can further improve grading effect.
Vertical direction projection gap is set for directly also littler than the coarse grain of the raw material particle of packing in the sintering machine, can prevent that coarse grain from falling.Coarse grain is directly set for from beginning about 8mm below the 8mm of projection gap.In order only to allow coarse grain fall, in fact the projection gap is set for below the raw material average particle size 4mm.And raw material to enter the angle of depression big, when vertical direction was carried out projection, the part of adjacent connecting rod was overlapping in the above-mentioned zone, may disappear in the gap between the connecting rod in projection image.
The device for charging material into of embodiment 3-1 among the present invention is described with reference to the accompanying drawings.Figure 25 is the vertical cross-section sketch of device for charging material into.This device for charging material into is made up of raw material supplying mechanism and chute 214 that raw material 207 is supplied with to pallet 205.
Raw material supplying mechanism constitutes by the belt-type feeder 203 that the direction of flechette-type symbol moves by the even charging feedstock 207 of width and with raw material 207.
Figure 26 is the front elevation of chute, and Figure 27 is the A-A line sectional view of Figure 26.Chute 214 forms at the width of pallet 205 that its upper end keeps certain intervals to the lower end and the screen shape of a plurality of connecting rods 215 compositions of be arrangeding in parallel.This chute 214, its upper end forms mild concave shape to the lower end.In these a plurality of connecting rods, the raw material 207 of supplying with, enter chute 214 by belt-type feeder 203 directly collides the connecting rod 215 in the zone of chutes 214, and the projection gap of its vertical direction is constant.This moment, vertical direction projection gap was meant the gap between the adjacent connecting rod 215 when vertical direction is seen connecting rod 215.When chute 214 was bent to concave shape, steady state value was set in the projection gap of vertical direction for, and the air line distance (to call connecting rod in the following text at interval) that connects between the adjacent connecting rod 215 will be along with diminishing gradually downwards.The connecting rod that diminishes in the zone is set the connecting rod interval less than regional lower end side at interval for.The connecting rod of regional lower end side becomes big along with advancing downwards at interval, and the connecting rod interval of chute 214 lower ends is greater than the connecting rod interval of aforementioned areas.For vertical direction projection gap between the connecting rod and connecting rod interval, in the embodiment of back, describe in detail.
A plurality of connecting rods 215 that connecting elements 216 will constitute chute 214 interconnect at regular intervals.This connecting elements 216 is for example installed 4 at regular intervals at the width of connecting rod 215.
The guiding groove of representing among Figure 25 217 is the tabular chutes that are between the upper end of the outlet side of belt-type feeder 203 and chute 214.When raw material 207 entered chute 214 with suitable angle and speed, guiding groove 217 may not be necessary.When but the feed speed of raw material 207 changes along with the variation of productivity ratio, even also change through the approach axis of guiding groove 217 raw material particles.From belt-type feeder 203 raw materials 207 that discharge and that discharge by guiding groove 217 as required, collide the top 214a of chute 214, its part changes the direction of advance downhill race to the chute 214 that forms the screen shape.And remainder falls at interval from the connecting rod that chute collides part.This raw material collides the connecting rod in zone, and the projection gap of its vertical direction is certain, so the coarse grain raw material can not fall and particulate raw material whereabouts in the raw material particle.
The part downhill race of coarse grain is discharged from the lower end of chute 214 to the chute 214 that is made of a plurality of connecting rods 215 in the raw material particle.The remainder of coarse grain falls from the wide gap between the connecting rod of the bottom 214b of formation chute 214, is supplied on the grid band 206 in the pallet 205 that moves continuously.On the other hand, the particulate raw material falls from the narrow gap between the connecting rod that constitutes above-mentioned chute 214 tops, is supplied on the grid band 206 in the pallet 205 that moves continuously.Even so compare with the gradient of chute 214 top 214a, when the angle of depression that enters angle of raw material 207 is bigger, also form the bed of material of its particle segregation that constitutes as the coarse grain raw material of lower floor and the particulate raw material that constitutes by the same particulate in top in the pallet 205 as the upper strata.
Figure 28 represents the device for charging material into of embodiment 3-2 among the present invention.This device for charging material into is by charging feedstock 207, with the moving direction of pallet in the other direction the roller feeder 202 of the lower sidewall of side with the funnel 201 that opens and closes lock 201a and the lower ending opening portion that is arranged on funnel 201 constitute, this point is different with embodiment 3-1.
The situation that chute is bent to concave shape has been described in the above-mentioned embodiment, but chute is not limited to concave shape, also can forms for example linearity.
Figure 29 represents device for charging material among the embodiments of the present invention 3-3.Raw material loading mechanism in this device for charging material into has charging feedstock 207, with the moving direction of pallet in the other direction the lower sidewall of side have funnel 201 that opens and closes lock 201a and the roller feeder 202 that is arranged on the lower ending opening portion of funnel 201,3-2 is different with embodiment, and the oblique below of roller feeder has roller feeder 218.By the rotation of roller feeder 218, can supplementary adjust angle and the speed that raw material enters chute, can relax change.
Embodiment
Compare the explanation inventive embodiment with comparative example.The pattern curve of the chute of embodiment and comparative example has been got the part of middle x 〉=0.X wherein, y is the cm value.
Y＝-{(0.456+0.12X)}/0.06+11.26
Figure 30 is the connecting rod interstitial site of expression embodiment and comparative example contrast and the coordinate diagram of the relation of the upright projection gap between the connecting rod.Figure 31 is the connecting rod interstitial site of expression embodiment and comparative example contrast and the coordinate diagram of connecting rod interval (distance between centers between the connecting rod) relation.The connecting rod interstitial site begins from the upper end successively by 1,2, and 3,4 ... 21 sequence number is determined.As shown in figure 30, a position 4mm is set in the connecting rod gap of the 1-6 that raw material collides among the embodiment, has increased the connecting rod center distance for the connecting rod straight line of its downside.As a result, as shown in figure 31, after the center distance between the connecting rod diminishes for the time being, become big gradually.And in the comparative example, as shown in figure 31, the center distance between the connecting rod is set for from the upper end of connecting rod 215 and is increased continuously gradually to the lower end.Among Figure 30, upright projection gap and embodiment between the connecting rod of this comparative example compare.
Figure 32 is the coordinate diagram of the pattern curve of expression embodiment, and the point of plotting is represented the center of connecting rod.Figure 33 is the coordinate diagram of the pattern curve of expression comparative example, and the point of plotting is represented the center of connecting rod.The chute of embodiment and comparative example, the angle of depression of raw material entering angle are greater than the gradient of chute upper end, and the angle that enters of the gradient raw material particle of chute upper end becomes 13 degree intersections that the raw material particle is entered relatively.
Figure 34 is for using the device of the foregoing description and comparative example, the coordinate diagram of the proportionate relationship of the average grain diameter in presentation layer direction height, the layer, C, CaO during base feed in pallet.Average grain diameter at first is described.The average grain diameter of embodiment becomes big successively from layer top to layer bottom.The particle diameter on layer top is about 4.6mm-2.7mm=1.9mm with the particle diameter difference of layer bottom.And the particle diameter difference of comparative example is 4.25mm-2.9mm=1.35mm.Thereby the grading effect of embodiment is good as can be seen, promptly can obtain the big bed of material of particle segregation.
The following describes the ratio of C.The C ratio of embodiment increases to layer top gradually from layer bottom.Layer bottom is about 3.6 weight %-2.9 weight %=0.7 weight % with the ratio difference on layer top.And the ratio difference of comparative example is 3.55 weight %-3.2 weight %=0.35 weight %.Thereby embodiment can obtain the big bed of material of C segregation as can be seen.
The ratio of CaO is described at last.The CaO ratio of embodiment increases to layer top gradually from layer bottom.Layer bottom is about 9.9 weight %-8 weight %=1.9 weight % with the ratio difference on layer top.And the ratio difference of comparative example is 9.5 weight %-8 weight %=1.5 weight %.Thereby embodiment can obtain the big bed of material of CaO segregation as can be seen.
Claims (19)
1. the device for charging material into of a sintering machine, its by
Send the feeder of sintering feed,
Be arranged on aforementioned feeder below, accept aforementioned sintering feed that this feeder supplies with and the roller feeder that this sintering feed is sent downwards,
Aforementioned roller feeder is made of a plurality of rollers with axial line, this axial line be arranged on the vertical direction of the moving direction of aforementioned relatively sintering machine pallet and
Be arranged on the below of aforementioned roller feeder, adjust pack into the particle segregation loading mechanism of distribution of sintering machine pallet of aforementioned sintering feed that this roller feeder supplies with and constitute.
2. the device for charging material into of the described sintering machine of claim 1, wherein aforementioned particle segregation loading mechanism is made of a plurality of linearity connecting rods or linearity steel wire rope, and the axial line of this linearity connecting rod or linearity steel wire rope is arranged on aforementioned particle segregation loading mechanism and accepts on the vertical direction of the moving direction of the vertical direction of aforementioned sintering feed and relative aforementioned sintering machine pallet.
3. the device for charging material into of the described sintering machine of claim 2, wherein the moving direction of this linearity connecting rod or the aforementioned relatively sintering machine pallet of straight line steel wire rope is arranged to crooked concave shape.
4. according to the device for charging material into of the described sintering machine of claim 2, wherein aforementioned a plurality of linearity connecting rod straight lines or steel wire rope, the interval of this adjacent connecting rod or steel wire rope increases from top to the bottom gradually.
5. the device for charging material into of the described sintering machine of claim 1, wherein aforementioned roller feeder is 100-200mm by diameter, rotating speed is that the roller of 2-15rpm constitutes.
6. the device for charging material into of the described sintering machine of claim 1, wherein aforementioned roller feeder is made of 3-8 roller, and the gap between the roller is 5-15mm.
7. the device for charging material into of the described sintering machine of claim 1, wherein aforementioned roller feeder has the inclination angle of 50-60 degree.
8. the device for charging material into of a sintering machine, its by
To pallet supply with sintering feed raw material supplying mechanism and
Upper end is near the aforementioned base materials feed mechanism, and lower end is above aforementioned pallet, and the chute that tilts with the opposite direction of the moving direction of aforementioned pallet constitutes,
Aforementioned chute, on the width of aforementioned pallet, by keeping a plurality of connecting rods of parallel at certain interval setting to constitute from its upper end to the lower end,
Aforementioned chute forms the shape of concave shape bending from its upper end to the lower end,
The mean value of the changes in pitch rate between the adjacent connecting rod of connection of aforementioned chute corresponding upper end side 1/3 scope in the horizontal direction is 1.5 times to 10 times of mean value of the changes in pitch rate of corresponding lower end side 2/3 scope.
9. the device for charging material into of the described sintering machine of claim 8, wherein the aforementioned base materials feed mechanism is made of the belt-type feeder.
10. the device for charging material into of the described sintering machine of claim 8, wherein the aforementioned base materials feed mechanism has funnel that opens and closes lock and the roll-type feeder that is arranged on the funnel lower end by the bottom of charging feedstock and constitutes.
11. the device for charging material into of the described sintering machine of claim 8, wherein the aforementioned base materials feed mechanism has the funnel that opens and closes lock by the bottom of charging feedstock, be arranged on the roll-type feeder of funnel lower end, and a plurality of rollers that linearity is arranged on below the aforementioned roll-type feeder constitute.
12. the device for charging material into of a sintering machine, its by
To pallet supply with sintering feed raw material supplying mechanism and
Upper end is near the aforementioned base materials feed mechanism, and lower end is above aforementioned pallet, and the chute that tilts with the opposite direction of the moving direction of aforementioned pallet constitutes,
Aforementioned chute, on the width of aforementioned pallet, by keeping a plurality of connecting rods of parallel at certain interval setting to constitute from its upper end to the lower end,
In the top of aforementioned chute, the zone that the raw material of whereabouts collides, the projection gap of the vertical direction between aforementioned a plurality of connecting rods roughly is constant.
13. the device for charging material into of the described sintering machine of claim 12, wherein aforementioned chute have from its upper end the concave surface to the lower end bending.
14. the device for charging material into of the described sintering machine of claim 12, at least a portion connecting rod in the zone that wherein aforementioned whereabouts raw material collides collide the connecting rod interval of regional lower end side at interval less than the aforementioned base materials particle.
15. the device for charging material into of the described sintering machine of claim 14, wherein the aforementioned base materials particle collides the connecting rod increase successively downwards at interval of regional lower end side, and the connecting rod of aforementioned chute lower end collides regional connecting rod at interval greater than the aforementioned base materials particle at interval.
16. the device for charging material into of the described sintering machine of claim 12, wherein aforementioned projection gap is below the 8mm.
17. the device for charging material into of the described sintering machine of claim 12, wherein the aforementioned base materials feed mechanism is made of the belt-type feeder.
18. the device for charging material into of the described sintering machine of claim 12, wherein the aforementioned base materials feed mechanism has the funnel that opens and closes lock by the bottom of charging feedstock, and is arranged on the roll-type feeder formation of funnel lower end.
19. the device for charging material into of the described sintering machine of claim 12, wherein the aforementioned base materials feed mechanism has the funnel that opens and closes lock by the bottom of charging feedstock, be arranged on the roll-type feeder of funnel lower end, and a plurality of rollers that linearity is arranged on below the aforementioned roll-type feeder constitute.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000064272 | 2000-03-09 | ||
| JP064272/2000 | 2000-03-09 | ||
| JP291058/2000 | 2000-09-25 | ||
| JP2000291057 | 2000-09-25 | ||
| JP2000291058 | 2000-09-25 | ||
| JP291057/2000 | 2000-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1416520A true CN1416520A (en) | 2003-05-07 |
Family
ID=27342615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01806264 Pending CN1416520A (en) | 2000-03-09 | 2001-03-07 | Device for charging material into sintering machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (3) | JP4972758B2 (en) |
| CN (1) | CN1416520A (en) |
| WO (1) | WO2001067017A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036032B (en) * | 2004-08-02 | 2010-05-12 | 西门子Vai金属科技有限责任公司 | Charging device for a strip sintering machine |
| CN102144040B (en) * | 2008-09-03 | 2013-03-13 | 奥图泰有限公司 | Charging device for sintering raw material with elastic deflector mat |
| CN102224266B (en) * | 2008-12-24 | 2013-06-05 | 新日铁住金株式会社 | Method and device for charging sintering machine with raw material |
| CN104561531A (en) * | 2013-10-25 | 2015-04-29 | Posco公司 | Charging apparatus for raw material, apparatus for manufacturing sintered ore and method for manufacturing sintered ore using the same |
| CN104741318A (en) * | 2015-04-03 | 2015-07-01 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Curved surface particle size grading system |
| CN108955275A (en) * | 2017-05-23 | 2018-12-07 | 中冶长天国际工程有限责任公司 | Vertical sinter cooler and sinter cooling means with chute feeder |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5292845B2 (en) * | 2008-02-20 | 2013-09-18 | Ｊｆｅスチール株式会社 | Raw material charging method to sintering machine |
| JP5951895B2 (en) * | 2012-06-05 | 2016-07-13 | ポスコ | Raw material charging apparatus and charging method |
| JP6056617B2 (en) * | 2013-04-03 | 2017-01-11 | Ｊｆｅスチール株式会社 | Method and apparatus for separating ferromagnetic material |
| KR101712389B1 (en) * | 2014-10-31 | 2017-03-06 | 주식회사 포스코 | Charging apparatus for raw material |
| CN106940138B (en) * | 2016-01-04 | 2019-01-25 | 中冶长天国际工程有限责任公司 | A kind of thickness of feed layer detection device and method |
| CN105783521B (en) * | 2016-05-04 | 2018-05-22 | 中冶华天南京工程技术有限公司 | Sintering bed of material thickening device |
| CN108955276B (en) * | 2017-05-23 | 2023-07-04 | 中冶长天国际工程有限责任公司 | Vertical sinter cooler with rotary distributor and sinter cooling method |
| CN108931140B (en) * | 2017-05-23 | 2023-07-04 | 中冶长天国际工程有限责任公司 | Tower-type agglomerate cooler and agglomerate cooling method |
| WO2023136240A1 (en) * | 2022-01-11 | 2023-07-20 | Ｊｆｅスチール株式会社 | Information processing method, information processing device, information processing system, information processing program, and sintered ore production method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61195931A (en) * | 1985-02-27 | 1986-08-30 | Sumitomo Metal Ind Ltd | Method and device for charging raw material dl type sintering machine |
| JPH01104724A (en) * | 1987-10-14 | 1989-04-21 | Nippon Steel Corp | Method for charging sintering raw material |
| JP2714276B2 (en) * | 1991-06-25 | 1998-02-16 | 日本鋼管株式会社 | Raw material supply device for sintering machine |
| JPH08267009A (en) * | 1995-03-29 | 1996-10-15 | Nippon Steel Corp | Raw material screening method |
| JP2982690B2 (en) * | 1996-05-20 | 1999-11-29 | 日本鋼管株式会社 | Raw material supply device for sintering machine |
| JPH109772A (en) * | 1996-06-24 | 1998-01-16 | Sumitomo Metal Ind Ltd | Sintering raw material feeder |
| JPH11294961A (en) * | 1998-04-14 | 1999-10-29 | Nkk Corp | Raw material charging device of sintering machine |
| JP3510525B2 (en) * | 1998-06-08 | 2004-03-29 | 株式会社神戸製鋼所 | Raw material charging method and apparatus for sintering machine |
-
2001
- 2001-03-07 JP JP2001565944A patent/JP4972758B2/en not_active Expired - Fee Related
- 2001-03-07 WO PCT/JP2001/001757 patent/WO2001067017A1/en active Application Filing
- 2001-03-07 CN CN 01806264 patent/CN1416520A/en active Pending
-
2011
- 2011-04-21 JP JP2011094564A patent/JP5408179B2/en not_active Expired - Fee Related
- 2011-04-21 JP JP2011094565A patent/JP5408180B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036032B (en) * | 2004-08-02 | 2010-05-12 | 西门子Vai金属科技有限责任公司 | Charging device for a strip sintering machine |
| CN102144040B (en) * | 2008-09-03 | 2013-03-13 | 奥图泰有限公司 | Charging device for sintering raw material with elastic deflector mat |
| CN102224266B (en) * | 2008-12-24 | 2013-06-05 | 新日铁住金株式会社 | Method and device for charging sintering machine with raw material |
| CN104561531A (en) * | 2013-10-25 | 2015-04-29 | Posco公司 | Charging apparatus for raw material, apparatus for manufacturing sintered ore and method for manufacturing sintered ore using the same |
| CN104561531B (en) * | 2013-10-25 | 2017-04-12 | Posco公司 | Charging apparatus for raw material, apparatus for manufacturing sintered ore and method for manufacturing sintered ore using the same |
| CN104741318A (en) * | 2015-04-03 | 2015-07-01 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Curved surface particle size grading system |
| CN108955275A (en) * | 2017-05-23 | 2018-12-07 | 中冶长天国际工程有限责任公司 | Vertical sinter cooler and sinter cooling means with chute feeder |
| CN108955275B (en) * | 2017-05-23 | 2023-07-04 | 中冶长天国际工程有限责任公司 | Vertical sinter cooler with chute type distributor and sinter cooling method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001067017A1 (en) | 2001-09-13 |
| JP4972758B2 (en) | 2012-07-11 |
| JP2011163757A (en) | 2011-08-25 |
| JP5408179B2 (en) | 2014-02-05 |
| JP2011163756A (en) | 2011-08-25 |
| JP5408180B2 (en) | 2014-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1416520A (en) | Device for charging material into sintering machine | |
| CN1596315A (en) | Raw material charging method for bell-less blast furnace | |
| EP2318557B1 (en) | Charging device for sinter raw material with elastic deflector mat | |
| JP5515288B2 (en) | Raw material charging method to blast furnace | |
| CN1055730C (en) | Reduced iron mfg. method and apparatus | |
| JP5494512B2 (en) | Method of charging sintered raw materials | |
| JP5338309B2 (en) | Raw material charging method to blast furnace | |
| CN109072318B (en) | Method for charging raw material into blast furnace | |
| JP2000063961A (en) | Method and device for charging raw material into sintering machine | |
| CN1034285C (en) | A method for producting a sinter cake | |
| JP2001347228A (en) | Sifting apparatus for lumpy raw material and sifting process | |
| JP2608425B2 (en) | Loading method of sintering raw material | |
| JP2982690B2 (en) | Raw material supply device for sintering machine | |
| JP7180406B2 (en) | Method for producing sintered ore | |
| KR900004855B1 (en) | Device of discharging materials for sintering | |
| JP2005213579A (en) | Method for preparing coke for charging at blast furnace center | |
| JP6950718B2 (en) | How to charge raw materials for Bellless blast furnace | |
| JP2011174135A (en) | Method for supplying raw material to sintering machine | |
| KR20040042543A (en) | Sinter machine charging apparatus for charging heat source | |
| JP5338311B2 (en) | Raw material charging method to blast furnace | |
| KR100554668B1 (en) | Apparatus And Method for the Using Blast Furnace Fine in Replacement of Hearth Ore | |
| KR101365526B1 (en) | Method and apparatus for charging sintering machine with raw material | |
| JPH08267009A (en) | Raw material screening method | |
| JPH0354397Y2 (en) | ||
| JPH044378B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: JFE STEEL CORP. Free format text: FORMER OWNER: ITALY-RICH ENGINEERING CO., LTD. Effective date: 20040430 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20040430 Address after: Tokyo, Japan Applicant after: NKK Corporation Address before: Tokyo, Japan Applicant before: JFE Engineering Corporation |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |