CN206069902U - A kind of granulation system for processing high-temperature liquid state slag - Google Patents
A kind of granulation system for processing high-temperature liquid state slag Download PDFInfo
- Publication number
- CN206069902U CN206069902U CN201621125822.3U CN201621125822U CN206069902U CN 206069902 U CN206069902 U CN 206069902U CN 201621125822 U CN201621125822 U CN 201621125822U CN 206069902 U CN206069902 U CN 206069902U
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- China
- Prior art keywords
- slag
- liquid state
- temperature liquid
- overflow
- granulation system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Manufacture Of Iron (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
This utility model provides a kind of granulation system for processing high-temperature liquid state slag, and which is arranged on boiler furnace (8) inside, forms device (2) and granulating device (3) including slag curtain；Slag curtain forms device (2) including overflow platform (21) and sleeve (22)；Sleeve (22) can accommodate overflow platform (21), and leave therebetween flow-guiding channel (23)；High-temperature liquid state slag flows out from flow-guiding channel (23) and forms circular slag curtain；Sleeve (22) upper end is higher than overflow platform (21) upper end；The nozzle (32) that granulating device (3) is communicated including cavity (31) and with cavity (31), nozzle (32) face from flow-guiding channel (23) the slag curtain for flowing out；The fluid that nozzle (32) gushes out is annular, is matched with the circular slag curtain flowed out from flow-guiding channel (23).This utility model is avoided that harmful gass are directly discharged in air, and can guarantee that granulated particles uniformity, enhances granulation effect.
Description
Technical field
This utility model is related to high-temperature liquid state slag treatment field, more particularly to a kind of for processing high-temperature liquid state slag
Granulation system.
Background technology
Substantial amounts of high-temperature liquid state slag can be produced in metallurgy industry during blast furnace ironmaking.These high-temperature liquid state slags need
After carrying out cooling granulated processed, could produce with high added value while the sensible heat of high-temperature liquid state slag is made full use of
Product with building materials performance.
At present, process high-temperature liquid state slag and mainly adopt water quenching and dry granulation method.
Water quenching process mainly has bottom to consider method, Yin Bafa, Tula method, Lhasa method, Ming Tekefa etc., at these methods
Need to consume substantial amounts of water during reason slag, and a large amount of H can be produced in processing procedure2S and SOxDirectly arrange etc. harmful gass
Enter in air, serious pollution is caused to environment.
It is wind quenching method and centrifuging that dry granulation method is more representational.Wind quenching method therein is with high-power pelletize wind
Machine produces high velocity air and dispels, is granulated liquid blast furnace.The power consumption of this wind quenching method is big, equipment bulky complex and floor space
Greatly, investment and operating cost are high, and in liquid blast furnace changes in flow rate, wind speed and air quantity are difficult to coordinate.Centrifuging therein is
By the rotating disk or revolving cup centrifugal force that rotation is produced at a high speed by liquid blast furnace slag granulation, although be granulated out using this centrifuging
The particle diameter distribution of grain slag is more uniform, but the reliability of the granulating device of rotation is poor at a high speed at high temperature, in addition granulation effect
Fruit is more sensitive to the temperature and changes in flow rate of liquid blast furnace, only unsatisfactory by adjusting rotating speed effect.
Utility model content
The purpose of this utility model is the problem for presently, there are, there is provided a kind of grain for processing high-temperature liquid state slag
Change system, the particle diameter distribution of the high-temperature liquid state slag slag stream of Jing this utility model granulation are more uniform, and need not in processing procedure
Substantial amounts of water resource is consumed, the H produced in processing procedure2S and SOxWill not be directly discharged in air etc. harmful gass.
This utility model is achieved through the following technical solutions：
This utility model provides a kind of granulation system for processing high-temperature liquid state slag, and which is arranged on the interior of boiler furnace
Portion, which includes：
Slag curtain forms device and granulating device；
The slag curtain forms device includes overflow platform and sleeve；The sleeve can accommodate the overflow platform, and overflow is flat
Flow-guiding channel is left between platform and sleeve；High-temperature liquid state slag flows out to form circular slag curtain from flow-guiding channel；The upper end of sleeve is high
In the upper end of overflow platform；
The nozzle that the granulating device is included cavity and communicated with the cavity, nozzle face from flow-guiding channel what is flowed out
Slag curtain；The fluid that nozzle gushes out is annular, is matched with the circular slag curtain flowed out from flow-guiding channel.
It is highly preferred that the granulating device is arranged on the lower section of overflow platform；The nozzle is on the basis of the center of cavity
Rounded array is arranged in the outer ring of cavity.
It is highly preferred that the granulating device is arranged on the lower section of sleeve；The nozzle is on the basis of the center of cavity in circle
Shape array is arranged in the inner ring of cavity.
It is highly preferred that the granulation system also includes：
Granulated particles stream guide；
The granulated particles stream guide includes high pressure positive blower, steam storage chamber, reservoir chamber and air distribution pipeline；High-pressure blast
Machine provides high-pressure blast to air distribution pipeline, air distribution pipeline by the high-pressure blast by the medium from steam storage chamber and/or reservoir chamber from
Media outlet sprays；Air distribution pipeline is arranged in a ring from flow-guiding channel between the slag curtain and the water-cooling wall of boiler furnace for flowing out.
It is highly preferred that the medium sprayed in the air distribution pipeline be air, steam, in water, or three arbitrarily both or
The mixture of three.
It is highly preferred that the section of the air distribution pipeline is circle, the media outlet form of the air distribution pipeline is slit, little
Hole or nozzle is set on pipe, or by the combination in any of above form.
It is highly preferred that the rectangular cross-section of the air distribution pipeline, the form of the media outlet of the air distribution pipeline is grid
Formula.
It is highly preferred that the overflow platform includes：
Upper cylinder, lower cylinder and the round platform in the middle of the two, wherein lower cylinder with diameter greater than upper cylinder.
It is highly preferred that the centrally disposed overflow launder of the overflow platform.
It is highly preferred that a kind of described granulation system for processing high-temperature liquid state slag also includes：
Liner plate；The liner plate is attached on the upper mounting plate of the overflow platform, and middle recessed is attached in the overflow launder
Side.
This utility model be can be seen that by above-mentioned the technical solution of the utility model to have the following technical effect that：
1st, the granulation system in this utility model is arranged on the inside of boiler furnace, the H produced in processing procedure2S and SOx
Will not be directly discharged in air etc. harmful gass, but be then exhausted from after the process such as back-end ductwork in boiler follow-up process.
2nd, this utility model faces from flow-guiding channel the slag curtain for flowing out by the nozzle of granulating device, and nozzle gushes out
Fluid match with the circular slag curtain flowed out from flow-guiding channel for annular, it is ensured that the uniformity that granulated particles are broken up, plus
The cooldown rate of granule after fast granulation, granulation effect strengthen；
3rd, by flow-guiding channel is left between overflow platform and sleeve, high-temperature liquid state slag is from flow-guiding channel for this utility model
Flow out and form circular slag curtain, construction land is reduced in space that so can be in effectively utilizes burner hearth, the overall volume for reducing burner hearth,
It is cost-effective, there is good economic worth.
4th, the design of overflow launder of the present utility model, makes slag carry out stream and is buffered；The temperature flowed due to slag is existed
1500 DEG C or so, the temperature of granulation system is room temperature, then both have very big thermograde so that slag is in just contact grain
Bonding cooled down during change system easily, it is pre- that the presence of overflow launder causes slag overflow launder to be carried out during stream enters overflow launder
Heat, while the radiant heat transfer of slag has been also carried out preheating flow-guiding channel；After slag is full of overflow launder, the high slag of temperature overflows
Flow-guiding channel is flowed, and then forms the good slag curtain of epidemic situation comparison, and then enhance granulation effect；
5th, the rotatability of overflow platform and/or sleeve makes slag non-caked in flow-guiding channel when flowing in the flow-guiding channel
Two side walls on, it is ensured that slag stream it is smooth, form good slag curtain, and then enhance granulation effect.
6th, by the setting of aid distributing pipe of the present utility model, the original movement locus of granule after granulation are changed so that rail
Mark integrally offsets downward, and reduces granulated particles and water-cooling wall is washed away, and extends the service life of water-cooling wall.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the A-A views in Fig. 1；
Structural representations of the Fig. 3 for the overflow platform in this utility model；
Structural representations of the Fig. 4 for another kind of granulating device in this utility model.
In accompanying drawing：
Slag runner 1, slag curtain form device 2, granulating device 3, motor 5, motor 6, slag-drip opening 7, boiler furnace 8；Overflow
Platform 21, sleeve 22；Overflow launder 210, upper cylinder 211, lower cylinder 212, round platform 213；Cavity 31, nozzle 32；Air distribution pipeline 41.
Specific embodiment
In order that those skilled in the art more fully understands the technical scheme of the application, below with reference to accompanying drawing to this reality
It is described in further details with new.
The orientation such as upper and lower, left and right, front and rear in present specification term be based on position relationship shown in the drawings and
Set up.Accompanying drawing is different, then corresponding position relationship is also possible to change therewith, therefore can not be interpreted as to protecting model with this
The restriction enclosed.
In description of the present utility model, it is to be understood that the implication of " multiple " refers to two or more, removes
It is non-separately to have clearly specific restriction.
In this utility model, belong to " installation ", " being connected ", " connecting ", " connection ", " fixation " etc. to be interpreted broadly, example
Such as, can be fixedly connected, or be detachably connected, or be integrally connected, or be mechanically connected, also may be used
To be electrical connection or can be in communication with each other, or be directly connected to, or be indirectly connected with by intermediary, Ke Yishi
The interaction relationship of UNICOM, or two components and parts inside two components and parts.For the ordinary skill people of this area
For member, concrete meaning of the above-mentioned term in this utility model can be understood as the case may be.
Embodiment one：
This utility model provides a kind of granulation system for processing high-temperature liquid state slag, and which is arranged on boiler furnace 8
Inside, top are introduced from the high-temperature liquid state slag slag stream flowed out along slag runner 1, and the slag stream is discharged by main combustion chamber.Through this practicality
Slag little particle after new granulation is discharged eventually through the slag-drip opening 7 of boiler, and the slag little particle of high temperature can be carried out further
Waste heat recovery, the H produced in slag stream granulation2S and SOxEtc. harmful gass in the inside of boiler furnace 8, then by cigarette
It is then exhausted from after the process such as road.A kind of such as Fig. 1-figure of the structure for processing the granulation system of high-temperature liquid state slag of the present utility model
Shown in 3, including：Slag curtain forms device 2, granulating device 3 and granulated particles stream guide.
Slag curtain forms device 2 includes overflow platform 21 and sleeve 22.The sleeve 22 can accommodate the overflow platform 21, and overflow
Flow-guiding channel 23 is left between levelling platform 21 and sleeve 22.The upper end of sleeve 22 higher than overflow platform 21 upper end, with ensure from
During the slag stream that overflow platform 21 overflows can the flow into flow-guiding channel 23 and not outer outside for spilling over sleeve 22.
In order to buffer impact of the slag stream to overflow platform 21, in the present embodiment the structure design of above-mentioned overflow platform 21 be as
Structure shown in Fig. 3, including upper cylinder 211, lower cylinder 212 and the round platform 213 in the middle of the two, wherein lower cylinder 212
With diameter greater than upper cylinder 211.This spline structure cause the slag stream that overflows from overflow platform 21 first along the outer ring of upper cylinder 211 to
Under, the inclined-plane of round platform 213 is then impinge upon, so that the impulse force of slag stream is buffered, slag flow velocity degree is reduced.
In order to buffer impact of the slag stream to overflow platform 21, in the centrally disposed overflow launder 210 of above-mentioned overflow platform 21, should
The longitudinal cross-section of overflow launder 210 can be part-elliptical, or such as bowl-shape part circular, or rectangle etc. its
Its shape.
Slag stream overflows after full of overflow launder 210 and forms slag curtain along stable outflow of flow-guiding channel 23.In order to avoid slag stream
Flow-guiding channel 23 is blocked because temperature drop cooling is piled up, above-mentioned sleeve 22 can rotate, and direction of rotation is clockwise, counterclockwise
Can.Above-mentioned overflow platform 21 can also rotate, and direction of rotation is clockwise, counterclockwise.The rotation of above-mentioned overflow platform 21 is led to
Overdrive motor 5 rotation completing.Above-mentioned sleeve 22 is driven by the motor 6 in outside and completes rotation, and specifically motor passes through
Axle transmission drives the pinion rotation being attached thereto, gear to engage with the gear on the outside of sleeve 22, and then band moving sleeve 22 is rotated.
In order to further dredge flow-guiding channel 23, the direction of rotation of above-mentioned overflow platform 21 and the rotation side of sleeve 22
To contrary.
Granulating device 3 is arranged on the lower section of overflow platform 21, including cavity 31 and the nozzle 32 communicated with cavity 31, nozzle
32 is multiple, and on the basis of the center of cavity 31, rounded array is arranged in the outer ring of cavity 31, and nozzle 32 is faced from water conservancy diversion
The slag curtain that passage 23 flows out.The fluid that so nozzle 32 gushes out is annular, with the circular slag curtain flowed out from flow-guiding channel 23
Match.
Above-mentioned granulated particles stream guide includes high pressure positive blower, steam storage chamber, reservoir chamber and aid distributing pipe 41.High-pressure blast
Machine provides high-pressure blast to air distribution pipeline 41, and air distribution pipeline 41 is by the high-pressure blast by Jie from steam storage chamber and/or reservoir chamber
Matter is sprayed from media outlet.Air distribution pipeline 41 is arranged in a ring from flow-guiding channel 23 water of the slag curtain and boiler furnace 8 for flowing out
Between cold wall.Air distribution pipeline 41 can be multiple rows of, and often row can be with linear arrangement, it is also possible to which parabolically shape is arranged.This is matched somebody with somebody
The section of wind pipeline 41 can be circular or rectangle, if the section of air distribution pipeline 41 is rectangle, the medium of air distribution pipeline 41 goes out
The form of mouth is grating type；If the section of air distribution pipeline 41 is circle, the media outlet of air distribution pipeline 41 can for slit, aperture or
It is the nozzle that multi-form is set on pipe, or by the combination in any of above form nozzle.The airduct of air distribution pipeline 41
Air-out direction is adjustable with the angle theta of horizontal direction, and scope is 0 °<θ<90°.The medium sprayed in air distribution pipeline 41 is air, steams
The mixture of both any or three in vapour, water, or three.
The operation principle of embodiment one：High-temperature slag slag stream flows directly into overflow launder 210, high-temperature slag slag by slag runner 1
Stream has a cushioning effect after flowing into overflow launder 210, after overflow launder 210 is full of by slag can flow to water conservancy diversion along guide platform 21
The flow-guiding channel 23 that platform 21 is formed with sleeve 22, now high temperature molten slag slag stream will be granulated the high-pressure medium spray that device 3 is formed
Penetrate, be broken into the very little granule of particle diameter, the performance of slag particles is fully able to the requirement for meeting building material performance.Because high
Warm slag slag stream does level throw motion after being granulated, so the slag little particle understood after some granulation gets to furnace wall water-cooling wall
On, in order to avoid slag little particle is got on furnace wall water-cooling wall, arrangement annular between device 2 and furnace wall water-cooling wall is formed in slag curtain
Aid distributing pipe 41.Slag little particle after granulation is discharged eventually through the slag-drip opening 7 of boiler, and the slag little particle of high temperature can be entered to advance
The waste heat recovery of one step.
Embodiment two：
Difference between this utility model embodiment two and embodiment one is that the granulating device 3 of above-described embodiment one sets
Put in the lower section of overflow platform 21, and the granulating device 3 in this utility model embodiment two is arranged on the lower section of sleeve 22.Implement
The structure of this granulating device 3 of example two is as shown in figure 4, including the cavity 31 and nozzle 32 of ring-type, nozzle 32 is with cavity 31
On the basis of center, rounded array is arranged in the inner ring of cavity 31.This structure of granulating device 3, enables to nozzle 32 and sprays
Medium towards granulating device 3 center spray, so from flow-guiding channel 23 flow out circular slag curtain be granulated after can draw close center
Simultaneously discharge to the slag-drip opening 7 down to boiler position.
Embodiment three：
Embodiment three increased liner plate on the basis of above-described embodiment one or embodiment two, and the liner plate is attached to described overflowing
On the upper mounting plate of levelling platform 21, and middle recessed it is attached on the inside of the overflow launder 210.Liner plate is effectively protected overflow platform
21, when requiring replacement, only liner plate need to be proposed and be replaced.So as to effectively extend the use longevity of overflow platform 21
Life.
Above-described embodiment is to include upper cylinder 211, lower cylinder 212 and the round platform in the middle of the two with overflow platform 21
Illustrate as a example by 213, but this utility model is not limited thereto, the structure of the overflow platform 21 can also only be only round platform
Structure, or column construction, or other shapes of structure.
Sleeve 22 or overflow platform 21 in above-described embodiment can not also rotate.
On above-mentioned sleeve 22 or overflow platform 21, hanger can be set, can by lifting device catch on the hanger by its
Take out.
Although this utility model is disclosed as above with preferred embodiment, embodiment is not for limiting this utility model
's.In the spirit and scope without departing from this utility model, any equivalence changes done or retouching also belong to this practicality new
The protection domain of type.Therefore the content that protection domain of the present utility model should be defined with claims hereof is as mark
It is accurate.
Claims (10)
1. a kind of granulation system for processing high-temperature liquid state slag, it is characterised in that the granulation system is arranged on Boiler Furnace
The inside of thorax (8), which includes：
Slag curtain forms device (2) and granulating device (3)；
The slag curtain forms device (2) including overflow platform (21) and sleeve (22)；The sleeve (22) can accommodate the overflow and put down
Flow-guiding channel (23) is left between platform (21), and overflow platform (21) and sleeve (22)；High-temperature liquid state slag is from flow-guiding channel
(23) flow out and form circular slag curtain；Upper end of the upper end of sleeve (22) higher than overflow platform (21)；
The nozzle (32) that the granulating device (3) is communicated including cavity (31) and with the cavity (31), nozzle (32) are faced
From the slag curtain that flow-guiding channel (23) flows out；The fluid that nozzle (32) gushes out is annular, and is flowed out from flow-guiding channel (23)
Circular slag curtain matches.
2. a kind of granulation system for processing high-temperature liquid state slag according to claim 1, it is characterised in that the grain
The lower section that (3) are arranged on overflow platform (21) is put in makeup；Nozzle (32) rounded battle array on the basis of the center of cavity (31)
Row are arranged in the outer ring of cavity (31).
3. a kind of granulation system for processing high-temperature liquid state slag according to claim 1, it is characterised in that the grain
The lower section that (3) are arranged on sleeve (22) is put in makeup；The nozzle (32) rounded array cloth on the basis of the center of cavity (31)
Put the inner ring in cavity (31).
4. a kind of granulation system for processing high-temperature liquid state slag according to Claims 2 or 3, it is characterised in that institute
Stating granulation system also includes：
Granulated particles stream guide；
The granulated particles stream guide includes high pressure positive blower, steam storage chamber, reservoir chamber and air distribution pipeline (41)；High-pressure blast
Machine provides high-pressure blast to air distribution pipeline (41), and air distribution pipeline (41) will be from steam storage chamber and/or reservoir chamber by the high-pressure blast
Medium from media outlet spray；Air distribution pipeline (41) is arranged in a ring from flow-guiding channel (23) the slag curtain and Boiler Furnace for flowing out
Between the water-cooling wall of thorax (8).
5. a kind of granulation system for processing high-temperature liquid state slag according to claim 4, it is characterised in that described to match somebody with somebody
In wind pipeline (41) medium of injection be air, steam, any mixture of both or three in water, or three.
6. a kind of granulation system for processing high-temperature liquid state slag according to claim 5, it is characterised in that described to match somebody with somebody
The section of wind pipeline (41) is circle, and the media outlet form of the air distribution pipeline (41) is for slit, aperture or on pipe
Nozzle is set, or by the combination in any of above form.
7. a kind of granulation system for processing high-temperature liquid state slag according to claim 5, it is characterised in that described to match somebody with somebody
The rectangular cross-section of wind pipeline (41), the form of the media outlet of the air distribution pipeline (41) is grating type.
8. a kind of granulation system for processing high-temperature liquid state slag according to claim 4, it is characterised in that described to overflow
Levelling platform (21) includes：
Upper cylinder (211), lower cylinder (212) and the round platform (213) in the middle of the two, wherein the diameter of lower cylinder (212)
More than upper cylinder (211).
9. a kind of granulation system for processing high-temperature liquid state slag according to claim 5, it is characterised in that described to overflow
The centrally disposed overflow launder (210) of levelling platform (21).
10. a kind of granulation system for processing high-temperature liquid state slag according to claim 9, it is characterised in that described
A kind of granulation system for processing high-temperature liquid state slag also include：
Liner plate；The liner plate is attached on the upper mounting plate of the overflow platform (21), and middle recessed is attached to the overflow launder
(210) on the inside of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621125822.3U CN206069902U (en) | 2016-10-14 | 2016-10-14 | A kind of granulation system for processing high-temperature liquid state slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621125822.3U CN206069902U (en) | 2016-10-14 | 2016-10-14 | A kind of granulation system for processing high-temperature liquid state slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206069902U true CN206069902U (en) | 2017-04-05 |
Family
ID=58441107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621125822.3U Withdrawn - After Issue CN206069902U (en) | 2016-10-14 | 2016-10-14 | A kind of granulation system for processing high-temperature liquid state slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206069902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435065A (en) * | 2016-10-14 | 2017-02-22 | 北京立化科技有限公司 | Granulation system for processing high-temperature molten slag |
-
2016
- 2016-10-14 CN CN201621125822.3U patent/CN206069902U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435065A (en) * | 2016-10-14 | 2017-02-22 | 北京立化科技有限公司 | Granulation system for processing high-temperature molten slag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170405 Effective date of abandoning: 20180814 |