CN109750157A - sinter manufacturing device and manufacturing method - Google Patents
sinter manufacturing device and manufacturing method Download PDFInfo
- Publication number
- CN109750157A CN109750157A CN201811065084.1A CN201811065084A CN109750157A CN 109750157 A CN109750157 A CN 109750157A CN 201811065084 A CN201811065084 A CN 201811065084A CN 109750157 A CN109750157 A CN 109750157A
- Authority
- CN
- China
- Prior art keywords
- heat source
- mentioned
- source substance
- sintering pallet
- sintering
- 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.)
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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
- C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
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- 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
- F27B21/02—Sintering grates or tables
-
- 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
- F27D3/10—Charging directly from hoppers or shoots
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- 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
- F27D3/12—Travelling or movable supports or containers for the charge
Abstract
It includes: sintering pallet that the present invention, which provides a kind of sinter manufacturing device and manufacturing method, described device, loads and carries raw material；Raw material supply unit is configured at the top of above-mentioned sintering pallet, is loaded into raw material and supplies to the inside of sintering pallet；The inside wall portion of heat source supply unit, the width direction of Xiang Shangshu sintering pallet supplies heat source substance；Ignition furnace is configured at the top of above-mentioned sintering pallet, for the upper face of raw material to be lighted a fire；And multiple bellows, it is continuously configured at the lower part of above-mentioned sintering pallet, is sintered from the lower part of sintering pallet sucking air by raw material, above-mentioned heat source supply unit includes: storage hopper, accommodates heat source substance；Feeding screw is set to above-mentioned storage hopper, for heat source substance to be discharged；Delivery pipe is connect, for conveying heat source substance with the outlet side of above-mentioned feeding screw；Air supplying part is connect with above-mentioned delivery pipe, for spraying heat source substance to the side surface part of charging feedstock.
Description
Technical field
The manufacturing device and sintering mine making method (Sintering Plant And Method of open production sinter
For Manufacturing Sintered Ore)。
Background technique
In general, the agglomerating plant of iron-smelter is the master for the sintering process for producing the sinter of the main material as blast furnace
Equipment.
Sintering process passes through in the guide rail for constituting the sintering pallet for being mounted with charging feedstock edge by ring track structure
Charging feedstock is sintered in mobile process to realize.
It is moved with multiple sintering pallets that integral manner connects along guide rail.When the vacant place of sintering pallet is reached to mine
When portion, the bottom material mine stored in bottom material mineral aggregate bucket is packed into trolley and is layered on bottom plate, charging feedstock is discharged from surge hopper in succession
And it is packed into.The trolley of above-mentioned bottom material mine and charging feedstock is mounted with by the loading being loaded on trolley of lighting a fire when ignition furnace lower part
The surface of raw material.
Multiple bellows are continuously configured in trolley lower part.Apply inhalation power to trolley by forming negative pressure in bellows come real
Now it is sintered.By negative pressure, the charging feedstock for being loaded into trolley is made to suck air to the lower part from the surface of kindling to be burnt downwards
Knot.Trolley is set to be sintered process during traveling to ore discharge portion after making charging feedstock catch fire, and by broken crusher machine sintering
The sinter of end and discharge.
Summary of the invention
[project to be solved]
A kind of productive sinter manufacturing device and manufacturing method can be improved sinter is provided.
A kind of sinter manufacturing device and manufacture that can improve the sintering reaction in the sidewall portion of sintering pallet is provided
Method.
A kind of burning that can more efficiently supply the heat source substance of additional services to the sidewall portion of sintering pallet is provided
Tie mine manufacturing device and manufacturing method.
[solution of project]
The manufacturing device of the embodiment of the present invention can include: sintering pallet loads and carries raw material；Raw material supply unit, matches
It is placed in the top of above-mentioned sintering pallet, raw material is loaded into and is supplied to the inside of sintering pallet；Heat source supply unit, to above-mentioned burning
The inside wall portion for tying the width direction of machine trolley supplies heat source substance；Ignition furnace is configured at the top of above-mentioned sintering pallet, uses
It lights a fire in by the upper face of raw material；And multiple bellows, it is continuously configured at the lower part of above-mentioned sintering pallet, from sintering board
Raw material is sintered by the lower part sucking air of vehicle.
Above-mentioned supply unit can include: raw material supply unit supplies charging feedstock to the inside of sintering pallet；And heat source supplies
To portion, heat source substance is supplied to the inside wall portion of the width direction of sintering pallet.
Above-mentioned heat source supply unit can include: storage hopper accommodates heat source substance；Feeding screw is set to above-mentioned storage hopper,
For heat source substance to be discharged；Delivery pipe is connect, for conveying heat source substance with the outlet side of above-mentioned feeding screw；Air supplying part,
It is connect with above-mentioned delivery pipe, for spraying heat source substance to the side surface part of charging feedstock.
Above-mentioned air supplying part can include: air supply tube is connect with above-mentioned delivery pipe, is used for wind pushing air；And pressure fan, setting
In above-mentioned air supply tube.
It may include two above-mentioned delivery pipes, extend respectively to the two side walls portion of the width direction of sintering pallet.
Above-mentioned heat source substance can be smokeless carbon, coke blacking, the substance containing carbon or their mixture.
It may also include spray nozzle part, which is set to the outlet side front end of above-mentioned air supply tube, for adjusting heat source substance
Spray angle.
Said nozzle portion can include: nozzle is set to the outlet side front end of air supply tube；Multiple swing fins, along above-mentioned spray
The front-end configuration of mouth is rotationally arranged at said nozzle front end to adjust spray angle；And driving portion, it is set to above-mentioned spray
Mouth is connect to make to swing fin rotation with above-mentioned swing fin.
Above-mentioned supply unit may also include bottom material mine supply unit, which matches along the moving direction of sintering pallet
It is placed in the front end of raw material supply unit, for supplying bottom material mine to the inside of sintering pallet.
Above-mentioned raw materials supply unit can include: surge hopper accommodates charging feedstock；Drum mixer is configured at above-mentioned surge hopper
Lower part, for charging feedstock to be discharged；And it is packed into skewed slot, it is configured at the outlet side of above-mentioned drum mixer, along sintering board
The width direction of vehicle extends to form the movement routine of charging feedstock.
Above-mentioned heat source supply unit can be such as flowering structure, it may be assumed that width direction and original of the above-mentioned air supply tube along sintering pallet
The two sides connection for expecting the width direction of the loading skewed slot of supply unit, it is former to being packed into from there through two sides for being packed into skewed slot
Heat source substance is sprayed in the side of material, thus the knot that the inside of heat source substance and the sintering pallet in the same direction of charging feedstock one is supplied
Structure.
The sintering mine making method of the embodiment of the present invention may include being packed into charging feedstock to the sintering pallet of continuous moving,
Raw material is loaded into using ignition furnace to light a fire, and the mistake of charging feedstock is sintered using the bellows sucking air of the lower part of sintering pallet
Journey.
Above-mentioned sintering mine making method may additionally include width direction when charging feedstock is packed into above-mentioned sintering pallet
Sidewall portion be packed into heat source substance the step of.
The step of being packed into above-mentioned heat source substance can include: by above-mentioned heat source substance to be packed into sintering pallet charging feedstock
Side feed the step of；And the heat source substance for carrying out conveying the step of being sprayed to the side of charging feedstock, it as a result, can will be hot
The sidewall portion of source substance and the sintering pallet in the same direction of charging feedstock one is packed into.
The step of being packed into above-mentioned heat source substance may include the step of adjusting spray angle when spraying above-mentioned heat source substance.
Before being packed into above-mentioned charging feedstock, it may also include the step of being packed into bottom material mine to the inside of sintering pallet.
Above-mentioned heat source substance can be the smokeless carbon of sintering, coke blacking, the substance containing carbon or their mixture.
[invention effect]
It, can be by being supplied to the two side walls portion of sintering pallet according to the embodiment of the present invention as explained above
Heat source increases the roasting heat and solution production quantity in sidewall portion.
Thereby, it is possible to improve the sinter rate of recovery in the sidewall portion of the sintering pallet of sintering reaction weakness.
In addition, can be easier and efficiently be packed into heat source substance to the two side walls portion of sintering pallet.
Detailed description of the invention
Fig. 1 is the schematic diagram for showing the sinter manufacturing device of an embodiment.
Fig. 2 is the schematic diagram for showing the heat source substance supply structure of sinter manufacturing device of an embodiment.
Fig. 3 is the schematic diagram for showing the spray nozzle part of sinter manufacturing device of an embodiment.
Fig. 4 is shown the carbon content for passing through the sinter that an embodiment manufactures and the test result being compared in the past
Chart.
Specific embodiment
In the following, the embodiment of the present invention is described with reference to, so that the technical staff in field belonging to the present invention is easy in fact
Apply the present invention.The technical staff in the field as belonging to the present invention is understood that, idea of the invention can not departed from
Under the premise of range, aftermentioned embodiment can be deformed in a plurality of ways.In the accompanying drawings to same or similar part
It is denoted by the same reference numeral as far as possible.
Underneath with dialect be merely to illustrate specific embodiment, limit the present invention.Odd number used herein
As long as the undefined obvious opposite meaning, further includes plural number in sentence.The consciousness of " comprising " used in specification makes spy
Determine characteristic, region, fixed number, step, movement, element and/or ingredient to embody, it is not excluded that other characteristics, region, fixed number, step
Suddenly, the presence of movement, element and/or ingredient or additional.
Although all terms used herein including technical terms and scientific words have and this without especially defining
The normally understood meaning equivalent in meaning of technical staff in field belonging to invention.Generally, it for the term of predefined, can chase after
Add and be interpreted as it with the meaning met with correlation technology document and present disclosure, cannot be explained as long as no definition
For strange or especially principle the meaning.
Fig. 1 diagrammatically illustrates the structure of the sintering equipment of the present embodiment.
Illustrate sintering equipment with reference first to Fig. 1.
As shown, sintering equipment 100 includes: multiple sintering pallets 10；Supply unit 20, is configured at sintering pallet
Top supplies raw material to sintering pallet；Ignition furnace 30, for the top table for being loaded into the raw material of sintering pallet of lighting a fire
Face；And multiple bellows 40, it is continuously configured at sintering pallet lower part, sucks air from sintering pallet lower part to make raw material
Sintering.It further include for handling the crusher (not shown) of sinter etc. that sintering terminates in the outlet side of sintering equipment.
Multiple sintering pallets 10 are advanced in a manner of cyclic track in a manner of continuously combining along guide rail.In sintering pallet
10 it is mobile during continuously realize the process of the loading of raw material, sintering and ore discharge.
Multiple bellows 40 are continuously configured at the lower part of sintering pallet 10 along guide rail.Bellows 40 are under sintering pallet 10
Portion sucks air be sintered charging feedstock.For example, bellows 40 can about configure 25, about from entrance side until the 18th
It can be connect by main pipeline with main blower.Negative pressure is applied to bellows 40 by driving main blower as a result, thus from sintering
Machine trolley 10 sucks air.Also, remaining bellows 40 are that recycling is discharged the high fever of gas and can connect with discharge gas pipeline.
Ignition furnace 30 is located at the top of sintering pallet 10 and covers sintering pallet 10.It is configured in the inside of ignition furnace 30
There is the burner for generating flame, the surface of the charging feedstock of sintering pallet is loaded into using the burner ignition.Make to move
Dynamic each sintering pallet 10 successively realizes the igniting to charging feedstock by ignition furnace 30.
Supply unit 20 can include: raw material supply unit 21 supplies charging feedstock to the inside of sintering pallet 10；And heat source
Supply unit 50 supplies heat source substance to the private side wall portion of the width direction of sintering pallet 10.In the present embodiment, it is being sintered
On the direction of travel of machine trolley 10, it may also include in the front end of raw material supply unit 21 to the inside of sintering pallet 10 and supply bottom
Expect the bottom material mine supply unit 22 of mine.Here, sidewall portion can indicate two sides side of the inside of the width direction along trolley
Region.
Heat source substance can indicate to play the role of the substance of heat source.In the present embodiment, heat source substance can be sintering
Smokeless carbon, coke blacking, the substance containing carbon or their mixture.About heat source substance, as long as can be during the sintering process
" loaded " position in the inside of sintering pallet 10 provides roasting heat and increases the substance of solution production quantity, then applicable.
In the present embodiment, heat source substance can be made of powder (powder) shape, to be supplied by air supply mode.
By width direction from heat source supply unit 50 to sintering pallet 10 private side wall portion additional services as heat source
Thus roasting heat and solution production quantity in the private side wall portion of sintering pallet 10 can be improved in the substance used.
Below in case of no particular description, direction of travel indicates side of the x-axis from left side to the right in Fig. 1
Indicate to, front entrance side and front entrance side along the left side of direction of travel, rear outlet side and rear exit side indicate right side, it is upper and
Top refers to that, along the upside of y-axis, lower and lower part indicates downside.
In the present embodiment, raw material supply unit 21 can include: surge hopper 23 accommodates charging feedstock；Drum mixer 24, matches
It is placed in the lower part of surge hopper 23, for charging feedstock to be discharged；And it is packed into skewed slot 25, it is configured at the outlet of drum mixer 24
Side, the width direction along sintering pallet 10 extend, the movement routine of downside charging feedstock.
It is packed into the outlet side lower end that skewed slot 25 is configured at drum mixer 24.Being packed into skewed slot 25 will be from by being arranged obliquely
The sintering pallet 10 of the charging feedstock that drum mixer 24 is discharged to the lower part swimmingly guides.
As shown in Fig. 2, the width direction for being packed into skewed slot 25 along sintering pallet 10 extends, will be stirred from the drum-type of surge hopper 23
The charging feedstock for mixing the discharge of machine 24 is uniformly charged on the whole along the width direction of sintering pallet 10.
In the present embodiment, heat source supply unit 50 can be two sides by the width direction to raw material supply unit 21
The structure that supply heat source substance supplies heat source substance to the inside of sintering pallet 10 together with charging feedstock.
For this purpose, as shown in Figures 2 and 3, heat source supply unit 50 can include: storage hopper 52 accommodates heat source substance；Screw feeding
Device 54 is set to storage hopper 52 heat source substance is discharged；Delivery pipe 56 is connect with the outlet side of feeding screw 54, along sintering
The width direction of machine trolley 10 extends to convey heat source substance to two sides for being packed into skewed slot 25；And air supplying part, with conveying
Pipe 56 connects, and heat source substance is sprayed to charging feedstock side.
Heat source substance is stored in the bin 58 of additional setting, can be by band conveyer 60 from bin 58 to storage hopper
52 supplies.It may be configured with the dosing device 62 and open and close valve for heat source substance to be quantitatively discharged in the outlet side of bin 58
64。
Storage hopper 52 is the infundibulate for accommodating a certain amount of heat source substance by conveying with conveyer 60 from bin 58
The container of shape.
Heat source substance edge is packed into skewed slot 25 to charging feedstock to the side side supply heat source substance for being packed into skewed slot 25
Two sides injection after, heat source substance flows down together with charging feedstock, thus naturally flows into sintering pallet 10.Due to
Heat source substance to be packed into skewed slot 25 side spray, therefore heat source substance in the inside of sintering pallet 10 in the width direction to burning
Knot 10 sidewall portion of machine trolley is mixed and is flowed into charging feedstock, is located at the inboard of heat source substance in charging feedstock.
In addition to the foregoing structure, delivery pipe 56 can also be with loading skewed slot 25 independently to 10 two side walls portion of sintering pallet
Extend to directly feed heat source substance to 10 two side walls portion of sintering pallet.
Two delivery pipes 56 to extend along loading skewed slot 25 two sides side respectively with 180 degree configuration.Delivery pipe 56 is held in the mouth
Connect storage hopper 52 and air supplying part.Feeding screw 54 is used to that heat source substance to be discharged with certain ratio, is quantitatively discharged from storage hopper 52
Heat source substance to supply to two delivery pipes 56.Utilize feeding screw 54 by the heat of the ratio amount appropriate set as a result,
Source substance is supplied via delivery pipe 56 to air supplying part.
Air supplying part can include: air supply tube 66 is connect with delivery pipe 56, extends the heat for come to conveying to skewed slot side is packed into
The air-supply of source substance；And pressure fan 68, it is set to air supply tube 66.
It is not easy to the two side walls portion of sintering pallet 10 supply heat source substance.Passing through simple feeding screw
54 when being supplied, and is interfered the flowing of free-falling charging feedstock by supply line and can be interfered vertical feeding.Heat source object as a result,
Matter cannot normally devote two side surface parts of charging feedstock.
In case of the present embodiment, heat source substance is sprayed by the air-supply pressure of air and is supplied, it is thus former to being packed into
Two side surface parts of material effectively supply.Heat source substance can be with the inside of the sintering pallet 10 in the same direction of charging feedstock one as a result,
Two side walls portion is normally put into.
The entrance side of air supply tube 66 is provided with pressure fan 68, and outlet side front end is come to the extension of skewed slot 25 is packed into loading
The side of skewed slot 25 connects.It is connect in the side of air supply tube 66 with delivery pipe 56.In order to make the heat source conveyed by delivery pipe 56
To more smoothly flowing therein inside air supply tube 66, delivery pipe 56 can be tilted towards the outlet side of air supply tube 66 and be connected substance.By defeated
The heat source substance for sending pipe 56 to convey comes by the air-supply pressure of the air flowed in air supply tube 66 to the outlet side front end of air supply tube 66
Inside injection mobile and to loading skewed slot 25.Pressure fan 68 adjusts the air flow rate of the air via air supply tube 66.It can pass through
Pressure fan 68 is controlled, the jet velocity and the amount of injection of the heat source substance via air supply tube 66 are adjusted.
As a result, when driving pressure fan 68, to the outlet side front end wind pushing air of air supply tube 66, supplied from delivery pipe 56
Heat source substance is flowed out by the air-supply flowing of air and is sprayed outward by the outlet side front end of air supply tube 66.From air supply tube
The heat source substance of 66 injections is located at the side of charging feedstock to spraying along the side for being packed into the charging feedstock that skewed slot 25 is discharged.
As shown in figure 3, air supplying part may also include spray nozzle part, which is set to the outlet side front end of air supply tube 66, can
Adjust the spray angle of heat source substance.
Spray nozzle part can include: nozzle 70 is set to the outlet side front end of air supply tube 66；Multiple swing fins 72, along nozzle
70 front-end configuration is rotationally arranged at the front end of said nozzle 70 to adjust spray angle；And driving portion, it is set to spray
Mouth 70 carrys out rotary oscillation fin 72 with swinging fin 72 and connecting.
Part of the nozzle 70 as injection heat source substance, such as be formed as extending in such a way that up and down direction is long rectangular
Cross-sectional profile.Fin 72 is swung continuously to be arranged along the front end of nozzle 70.Each front end for swinging fin 72 is with hinge axis
73 are rotatably engaged for mediator in nozzle 70.Fin 72 is swung as a result, to be rotated for mediator with hinge axis 73 to make
The angle of swing fin 72 relative to nozzle 70 is different.
In the present embodiment, driving portion 74 may include carrying out flexible driving cylinder 74 by oil pressure or air pressure.Driving cylinder 74 with
It swings fin 72 and 70 axis of nozzle combines.By the flexible driving of driving cylinder 74, make to swing fin 72 relative to nozzle 70 to cut with scissors
Chain rivet 73 is that mediator is rotated.Driving cylinder 74 individually (difference) can be set to each swing fin 72.Except such structure
Except, it also can be used such as flowering structure, that is, each fin 72 that swings is connected to each other, and makes all swings by configuring a driving cylinder
Fin 72 is acted together.
The spray regime of spray nozzle part change heat source substance.With spray nozzle part swing fin 72 movement and spray angle not
Together, so that spray angle, that is, spray regime to the heat source substance in the upper-lower height direction for being packed into skewed slot 25 is different.Pass through as a result,
It, can be by heat source substance with the spray regime for adjusting accordingly heat source substance along the thickness for being packed into the charging feedstock that skewed slot 25 flows down
Only accurately and efficiently put into the side surface part of charging feedstock.
In the present embodiment, by above structure, by heat source substance to storage hopper 52 supply it is a certain amount of after, calculate phase
Heat source substance is supplied for the side supply ratio of the heat source substance of input total raw materials for sintering.Heat source substance passes through spiral shell
Feed appliance 54 is revolved quantitatively to spray and supply along delivery pipe 56 to air supply tube 66.Air supply tube 66 and the loading via loading skewed slot 25 are former
The thickness of material adjusts accordingly spray angle and air-supply pressure, and blows heat source substance by air supply tube 66 come to the side of charging feedstock
Face injection.
The heat source substance sprayed by air supply tube 66 and nozzle 70 is located at dress to investment on the inside of the side surface part of charging feedstock
Enter the side surface part of raw material.Heat source substance passes through together with charging feedstock is packed into skewed slot 25 to the loading of the inside of sintering pallet 10.
In this way, by the way that heat source substance is supplied to sintering pallet 10, in the side wall of charging feedstock and sintering pallet 10
Heat source substance is filled between portion.
Heat source substance plays the role of the heat source for promoting solution to be formed in sintering bed, in the inside of sintering pallet 10
Sidewall portion side is additional to provide roasting heat.Thereby, it is possible to the solution generations in the sidewall portion by increasing sintering pallet 10
Amount, improves the sinter rate of recovery in the region and the bond strength between iron ore particle.Therefore, it can be improved previous sintering
React the sinter rate of recovery in the sidewall portion of weak sintering pallet 10.
Shadow of the sinter rate of recovery by a variety of elements such as supply heat, the amount in conjunction with slag, sinter strength, porositys
It rings.Wherein, the weak point existing for the surface section and sidewall portion of sintering bed is the element for significantly reducing the rate of recovery of sinter.It burns
The weak floor Crack cause of knot bed surface section is: the air of room temperature is necessarily sucked from the top of feedstock bed in sintering process, from
And the burning of the coke before the high temperature needed for the meltingization for being heated to slag composition in surface section raw material terminates.
In addition, with the progress of sintering, the volume for the raw material layer being packed into sintering pallet 10 by sintering reaction subtracts
It is few, so that the horizontal direction and vertical direction in sintering pallet 10 are shunk.Therefore, in the sidewall portion of sintering pallet 10
In, space is generated between sintering bed and the sidewall portion of sintering pallet 10.The space of air in this way rapidly flows through, thus
Cause flame relative to the unbalanced etc. of burning, as a result in the same manner as the surface section of sintering bed, roasting is also generated in sidewall portion
Phenomena such as temperature reduces, solution production quantity is insufficient, raw material packed density reduces.Sintering reaction is thinning due to above-mentioned influence as a result,
Weak, the sinter rate of recovery in the sidewall portion of sintering pallet 10 reduces.
In contrast, in case of the present embodiment, as described above by being packed into heat to the sidewall portion of sintering pallet 10
Source substance, with the sinter rate of recovery that differently, can be improved in sidewall portion in the past.
[embodiment]
According to sintering process, to the supply of the sintering pallet of continuous moving and charging feedstock, using ignition furnace by raw material point
After fire, air is sucked come raw materials for sintering by the bellows of sintering pallet lower part.
During raw material supply, it is packed into bottom material mine to the inside of sintering pallet first, and be sequentially loaded into charging feedstock.
When charging feedstock is packed into, the sidewall portion of the width direction of Xiang Shangshu sintering pallet supplies heat source substance to be packed into sintering board
The inside of vehicle.
If observing heat source substance loading procedure, heat source substance is to pass through a certain amount of discharge of dosing device from bin
To be uniformly supplied to storage hopper.
Calculate should to the supply of the sidewall portion for the raw material for being fitted into sintering pallet heat source substance relative to making in sintering process
The ratio appropriate of total fuel, and correspondingly set with the ratio discharge rate of feeding screw.
In the present embodiment, coke blacking is used as heat source substance quantitatively to convey coke to air supply tube by feeding screw
Powdered carbon.According to the investment depth of the coke blacking conveyed to air supply tube, to adjust the blast pressure of pressure fan.Also, it is filled with passing through
Enter the raw material that skewed slot is fallen side surface part height adjust accordingly air supply tube injection nozzle angle.In this way, being sent having adjusted
In the state of the air-supply pressure of air hose and the spray angle of nozzle, using air supply tube by coke blacking to via the raw material for being packed into skewed slot
Side surface part investment.
The side surface part of coke blacking investment charging feedstock is carried out coke blacking together with charging feedstock to be packed into sintering pallet
Portion.Coke blacking is filled between the sidewall portion of sintering pallet and charging feedstock as a result,.
Coke blacking promotes solution to be formed during the sintering process.
In the present embodiment, used coke blacking has prepared 3mm size below, keeps by integrated fuel usage amount
To enclose 0.5 to 1.0t/hr supply amount under certain operating condition.
Following table 1 is to be compared to the working result of the present embodiment and in the past indicate.
[table 1]
In table 1, embodiment indicates the working result for the structure for being packed into coke blacking to sintering pallet two side walls portion.
In embodiment 1 and embodiment 2, the additive amount of coke blacking is different, other operating conditions are identical.Comparative example expression is not loaded into coke
The heat source substances such as powder and the working result that the previous structure of charging feedstock is only packed into the inside of sintering pallet.It is returned in table 1
Work expression cannot be used using sinter and again as the sinter of raw materials for sintering.
Test result indicates to enclose multiple embodiments of coke blacking under identical operating condition compared with comparative example
Excellent working result is arrived.
That is, in the case of the embodiment, the promotion and sinter due to the sintering reaction in the sidewall portion of sintering bed are strong
The raising of degree and do over again generation than reduce, so that being sintered the rate of recovery improves 76.4% to 78.6%, sintering production is improved
35.0t/d/m2To 36.4t/d/m2。
Fig. 4 changes the carbon content of the width direction to sintering pallet of the sinter manufactured by the embodiment 2 of table 1
Be compared to indicate in the past.
Embodiment 2 indicates the structure for being packed into coke blacking to the two side walls portion of sintering pallet as described above in Fig. 4
Carbon content, comparative example expression be not loaded into the heat source substances such as coke blacking and be only packed into charging feedstock to the inside of sintering pallet
The carbon content of previous structure.
As shown in Figure 4, it is thus identified that following situation, it may be assumed that compared with comparative example, in the case of the embodiment, add with coke blacking
Dosage from 0 increases to 1.0t/hr and carbon content is from the central portion of sintering pallet to the increased distribution of sidewall portion.Therefore, it is known that
The increase compared with the past realized in the roasting heat of the sidewall portion of sintering pallet in case of the present embodiment.
In this way, as shown in table 1 and Fig. 4, in the case where multiple embodiments, due to the burning in the sidewall portion of sintering pallet
It ties the promotion of reaction and the raising of sinter strength and makes generation ratio reduction of doing over again, be thus sintered rate of recovery raising compared with the past
2% or more, sintering production increases 1.2t/d/m2More than.
Exemplary embodiment of the invention is illustrated as explained above, but those skilled in the art can implement
Various deformation and other embodiments.Such deformation and other embodiments are included in appended claims, do not take off
Objective and range from manufacture of the invention.
[explanation of appended drawing reference]
10: sintering pallet 20: supply unit
21: raw material supply unit 22: bottom material mine supply unit
23: surge hopper 24: drum mixer
25: being packed into skewed slot 30: ignition furnace
40: bellows 50: heat source supply unit
52: storage hopper 54: feeding screw
56: delivery pipe 58: bin
66: air supply tube 68: pressure fan
70: nozzle 72: swinging fin
73: hinge axis 74: driving cylinder
Claims (12)
1. a kind of sinter manufacturing device, which is characterized in that
Include:
Sintering pallet loads and carries raw material；
Raw material supply unit is configured at the top of above-mentioned sintering pallet, is loaded into raw material and supplies to the inside of sintering pallet；
The inside wall portion of heat source supply unit, the width direction of Xiang Shangshu sintering pallet supplies heat source substance；
Ignition furnace is configured at the top of above-mentioned sintering pallet, for the upper face of raw material to be lighted a fire；And
Multiple bellows are continuously configured at the lower part of above-mentioned sintering pallet, and from the lower part of sintering pallet, sucking air will be former
Material sintering,
Above-mentioned heat source supply unit includes:
Storage hopper accommodates heat source substance；
Feeding screw is set to above-mentioned storage hopper, for heat source substance to be discharged；
Delivery pipe is connect, for conveying heat source substance with the outlet side of above-mentioned feeding screw；
Air supplying part is connect with above-mentioned delivery pipe, for spraying heat source substance to the side surface part of charging feedstock.
2. sinter manufacturing device as described in claim 1, which is characterized in that
Above-mentioned heat source supply unit supplies heat source substance by two sides of the width direction to raw material supply unit, by heat source substance
It is supplied with the inside of the sintering pallet in the same direction of charging feedstock one.
3. sinter manufacturing device as described in claim 1, which is characterized in that
Above-mentioned heat source substance is the smokeless carbon of sintering, coke blacking, the substance containing carbon or their mixture.
4. sinter manufacturing device as described in claim 1, which is characterized in that
It further include bottom material mine supply unit, which is configured at raw material supply along the moving direction of above-mentioned sintering pallet
The front end in portion supplies bottom material mine to the inside of sintering pallet.
5. sinter manufacturing device according to any one of claims 1 to 4, which is characterized in that
Above-mentioned air supplying part includes:
Air supply tube is connect with above-mentioned delivery pipe, is used for wind pushing air；And
Pressure fan is set to above-mentioned air supply tube.
6. sinter manufacturing device as claimed in claim 5, which is characterized in that
Above-mentioned air supply tube extends along the width direction of sintering pallet to two sides of the loading skewed slot of above-mentioned raw materials supply unit,
Heat source substance is supplied to the side surface part of charging feedstock from two sides for being packed into skewed slot.
7. sinter manufacturing device as claimed in claim 6, which is characterized in that
It further include spray nozzle part, which is set to the outlet side front end of above-mentioned air supply tube, for adjusting the injection of heat source substance
Angle.
8. sinter manufacturing device as claimed in claim 7, which is characterized in that
Said nozzle portion includes:
Nozzle is set to the outlet side front end of air supply tube；
Multiple swing fins are rotationally arranged at the front end of said nozzle along the front-end configuration of said nozzle to adjust injection
Angle；And
Driving portion is set at said nozzle, is connect with above-mentioned swing fin to make to swing fin rotation.
9. a kind of sintering mine making method, which is characterized in that
Include the steps that being packed into heat source substance, in this step, is packed into charging feedstock to the sintering pallet of continuous moving, utilizes
Ignition furnace is loaded into raw material igniting, is sintered charging feedstock using the bellows sucking air of the lower part of sintering pallet, also,
When being packed into above-mentioned charging feedstock, the sidewall portion of the width direction of Xiang Shangshu sintering pallet is packed into heat source substance,
The step of being packed into above-mentioned heat source substance include:
By above-mentioned heat source substance to be packed into sintering pallet charging feedstock side feed the step of；And
The step of injection of the next heat source substance to the side of charging feedstock will be conveyed,
As a result, in the step of being fitted into above-mentioned heat source substance, by the side of heat source substance and the sintering pallet in the same direction of charging feedstock one
Wall portion is packed into.
10. sintering mine making method as claimed in claim 9, which is characterized in that
In the step of being fitted into above-mentioned heat source substance, above-mentioned heat source substance is the smokeless carbon of sintering, coke blacking, the substance containing carbon
Or their mixture.
11. the sintering mine making method as described in claim 9 or 10, which is characterized in that
The step of being packed into above-mentioned heat source substance is included in when spraying above-mentioned heat source substance the step of adjusting spray angle.
12. sintering mine making method as claimed in claim 11, which is characterized in that
Before being packed into above-mentioned charging feedstock, bottom material mine is packed into the inside of sintering pallet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2017-0148026 | 2017-11-08 | ||
| KR1020170148026A KR101987939B1 (en) | 2017-11-08 | 2017-11-08 | Sintering plant and method for manufacturing sintered ore |
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| Publication Number | Publication Date |
|---|---|
| CN109750157A true CN109750157A (en) | 2019-05-14 |
Family
ID=66402482
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811065084.1A Pending CN109750157A (en) | 2017-11-08 | 2018-09-12 | sinter manufacturing device and manufacturing method |
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| KR (1) | KR101987939B1 (en) |
| CN (1) | CN109750157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112410543A (en) * | 2020-12-07 | 2021-02-26 | 许玉蕊 | Sintering oxygen enrichment device |
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| CN201277543Y (en) * | 2008-08-28 | 2009-07-22 | 上海天新热能工程有限公司 | Nozzle horizontal hunting regulation apparatus used for coal powder burner |
| 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 |
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| JPS6148538A (en) * | 1984-08-13 | 1986-03-10 | Kawasaki Steel Corp | Manufacture of sintered ore |
| KR20040042543A (en) * | 2002-11-14 | 2004-05-20 | 주식회사 포스코 | Sinter machine charging apparatus for charging heat source |
| KR100928830B1 (en) * | 2002-12-27 | 2009-11-27 | 주식회사 포스코 | Manufacturing method of sintered ore for steel with improved recovery rate |
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- 2017-11-08 KR KR1020170148026A patent/KR101987939B1/en active IP Right Grant
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| KR20040017540A (en) * | 2002-08-22 | 2004-02-27 | 주식회사 포스코 | Apparatus and method with means for putting cokes in the outer layer of sintering material |
| CN201277543Y (en) * | 2008-08-28 | 2009-07-22 | 上海天新热能工程有限公司 | Nozzle horizontal hunting regulation apparatus used for coal powder burner |
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| CN112410543A (en) * | 2020-12-07 | 2021-02-26 | 许玉蕊 | Sintering oxygen enrichment device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20190052380A (en) | 2019-05-16 |
| KR101987939B1 (en) | 2019-06-11 |
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Application publication date: 20190514 |