CN106435062A - High-temperature molten slag granulation system - Google Patents
High-temperature molten slag granulation system Download PDFInfo
- Publication number
- CN106435062A CN106435062A CN201610900314.6A CN201610900314A CN106435062A CN 106435062 A CN106435062 A CN 106435062A CN 201610900314 A CN201610900314 A CN 201610900314A CN 106435062 A CN106435062 A CN 106435062A
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- Prior art keywords
- slag
- seam
- chute
- granulating
- liquid state
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Furnace Details (AREA)
Abstract
The invention relates to a high-temperature molten slag granulation system. The granulation system comprises a slag tank, a slag seam adjusting device and a granulating device; an opening is formed in the bottom of the slag tank; the slag seam adjusting device is arranged in a manner of clinging to the bottom of the slag tank and comprises a slag seam; the slag seam is positioned under the opening in the bottom of the slag tank; the width of the slag seam is adjustable; the granulating device is arranged below the slag seam adjusting device and is provided with an ejection outlet; the ejection outlet of the granulating device is towards the lower portion of the slag seam; the granulating device is a high-pressure ejecting device. The granulating system is capable of controlling the width of the slag seam according to the flow rate of supplied slag, the supplied slag is granulated by the granulating device after falling off from the slag seam, and the pressure of granulation jet flow is controlled according to the width of the slag seam. The system provided by the invention is simple in structure, small in size, simple to operate during a molten slag granulation process and high in reliability; by adopting the system provided by the invention, an ideal granulation effect can be achieved, and the equipment investment and operating cost can be greatly lowered.
Description
Technical field
The present invention relates to high temperature furnace slag granulation field is and in particular to a kind of high-temperature liquid state slag granulating system.
Background technology
In metallurgy industry, blast furnace ironmaking produces substantial amounts of high-temperature liquid state slag, at present, processes slag and mainly adopts water quenching,
Water quenching is processed mainly has bottom to consider method, Yin Bafa, Tula method, Lhasa method, Ming Tekefa etc., needs in this method processing procedure
Consume substantial amounts of water, and a large amount of H can be produced in processing procedure2S and SOxEtc. harmful gass, environmental pollution is serious.At present
The dry granulation occurring is more representational to be wind quenching method and centrifuging, and wind quenching method is to be produced at a high speed with high-power granulation blower fan
Air-flow dispels, is granulated liquid blast furnace, and power consumption is big, equipment bulky complex, floor space are big, investment and operating cost are high,
In liquid blast furnace changes in flow rate, wind speed and air quantity are difficult to coordinate.Centrifuging is to rely on rotating disk or revolving cup high-speed rotation to produce
Centrifugal force by liquid blast furnace slag granulation, the particle diameter distribution of grain slag is more uniform, but the granulation of high-speed rotation at high temperature dress
The reliability put is poor, and granulation effect is more sensitive to the temperature of liquid blast furnace and changes in flow rate in addition, only by adjusting rotating speed
Effect is unsatisfactory.
Content of the invention
For produced problem in the above-mentioned slag treatment in high-temperature liquid state, the present invention provides a kind of high-temperature liquid state slag granulating
System.
A kind of high-temperature liquid state slag granulating system it is characterised in that this granulation system include slag chute, slag seam adjusting means,
Granulating device；
Described slag chute bottom has opening, and described slag seam adjusting means is close to be arranged on the bottom of described slag chute, described slag
Seam adjusting means has slag seam, and described slag seam is located at immediately below described slag chute bottom opening, and the width of described slag seam can be adjusted；
Described granulating device is arranged on below described slag seam adjusting means, and described granulating device has jet exit, described
Below the jet exit of granulating device stitches towards described slag, described granulating device is high-pressure injection device.
Further, described granulation system also includes deflector, and described deflector is arranged on inside described slag chute
On wall, it is located at the lower section of slag import, described deflector is the bowl structure of back-off.
Further, described granulation system also includes clearing up the airduct of slag seam, and the airduct of described cleaning slag seam can be stretched
Enter at described slag chute inner setting position, the outlet of the airduct of described cleaning slag seam is just stitched to described slag, described cleaning slag seam
The outlet of airduct is tapered configuration, and the outlet distribution of the airduct of described cleaning slag seam stitches mating shapes with described slag.
Further, the airduct of described cleaning slag seam can be one or more.
Further, the interior media of the airduct of described cleaning slag seam is air and/or steam.
Further, described granulation system also includes level monitoring device and control device, described level monitoring device
It is arranged on the side wall of described slag chute, the liquid level signal monitoring is delivered to described control device by described level monitoring device,
Described control device controls the width of described slag seam according to the liquid level signal receiving.
Further, described slag seam adjusting means includes the first removable adjusting brick, the second removable adjusting brick and shifting
Dynamic device, the described first removable adjusting brick and described second removable adjusting brick are close to be arranged on described slag chute bottom respectively,
Leave gap between described first removable adjusting brick and described second removable adjusting brick and form described slag seam, described slag stitches position
In the underface of described slag chute bottom opening, described mobile device is arranged on the described first removable adjusting brick and/or described the
The end of two removable adjusting bricks, the shape of described slag seam be may move with the described first removable adjusting brick and described second and adjusts
The end shape of brick matches.
Further, what described slag stitched is shaped as rectangle or arc.
Further, described slag chute includes slag chute straight section and the oblique section of slag chute, described slag chute straight section oblique section with described slag chute
End vertical be fixedly connected, described slag chute straight section is interchangeable with the upper-lower position of the oblique section of described slag chute, described slag chute straight section and
The oblique section of described slag chute connects, and oblique section has tilt angle alpha, positioned at the described slag chute of bottom with described slag chute for the horizontal direction of end points
Straight section or the oblique section of described slag chute have opening.
Further, described tilt angle alpha is 90 ° of 30 ° of ＜ α ＜.
Beneficial effects of the present invention：
Present configuration is simple, small volume, can be according to the width of the uninterrupted real-time regulation slag seam carrying out slag and granulation dress
The jet pressure put；Deflector has carried out shunting to the slag entering slag chute it is ensured that forming the slag stream before slag curtain uniformly, surely
Fixed, the formation for uniform slag curtain provides good structure to ensure；By install cleaning slag seam airduct it is ensured that slag seam cleaning,
Slag is smoothly derived slag seam, do not block slag seam, form stable slag curtain；According to actual come slag situation, slag seam shape enter
One step ensure that the slag curtain thickness entering granulating device is uniform, makes even particle size after granulation, and granulation efficiency improves.Using this
Invention system is high to simple to operate during slag granulating, reliability, and granulation effect is preferable, and greatly reduces investment and the fortune of equipment
Row cost.
Brief description
Fig. 1 is high-temperature liquid state slag granulating system structure one schematic diagram of the present invention；
Fig. 2 is high-temperature liquid state slag granulating system schematic top plan view during rectangle slag seam of the present invention；
Fig. 3 is high-temperature liquid state slag granulating system schematic top plan view during arc slag seam of the present invention；
Fig. 4 is high-temperature liquid state slag granulating system structure two schematic diagram of the present invention.
In accompanying drawing：
Slag chute 1, the first adjusting brick 2, the second adjusting brick 3, granulating device 4, slag chute straight section 5, the oblique section of slag chute 6, mobile device
7th, deflector 8, the airduct 9 of cleaning slag seam.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings and by specific embodiment, and following examples are descriptive
, it is not determinate it is impossible to protection scope of the present invention is limited with this.
A kind of high-temperature liquid state slag granulating system in the present embodiment, it can receive high-temperature liquid state slag, and slag is carried out
Granulated processed, the slag after process can be to its secondary utilization.
As shown in figure 1, this granulation system includes slag chute 1, the first adjusting brick 2, the second adjusting brick 3, granulating device 4.
Slag chute 1 includes slag chute straight section 5 and the oblique section of slag chute 6, and slag chute straight section 5 is vertically fixedly connected on the top of the oblique section of slag chute 6,
The oblique section of slag chute 6 bottom has an opening, and slag chute straight section 5 and the oblique section of slag chute 6 connect the horizontal direction of end points and the oblique section of slag chute 6 has necessarily
Tilt angle alpha, 90 ° of wherein 30 ° ＜ α ＜, the angle of inclination in the range of this is beneficial to carry out slag enter bottom opening.
First adjusting brick 2 and the second adjusting brick 3 are close to be arranged on the bottom of the oblique section of slag chute 6, the first adjusting brick 2 and respectively
Leave gap between two adjusting bricks 3 and form slag seam, slag seam is located at the underface of the oblique section of slag chute 6 bottom opening, the first adjusting brick 2 He
The end of the second adjusting brick 3 is respectively equipped with a mobile device 7, and mobile device 7 can change the first adjusting brick 2 or the second regulation
The horizontal level of brick 3, can adjust the distance between the first adjusting brick 2 and the second adjusting brick 3 using mobile device 7, and then
Slag seam width can be adjusted, the shape of slag seam is matched with the end shape of the first adjusting brick 2 and the second adjusting brick 3, can be square
Shape (see Fig. 2) or arc (see Fig. 3).
Granulating device 4 is arranged on the lower section of the first adjusting brick 2, and granulating device 4 is the injection dress of water under high pressure or gases at high pressure
Put, granulating device 4 has jet exit, the jet exit of granulating device 4, towards below slag seam, to be formed after slag falls through slag seam
Slag curtain, the water under high pressure or gases at high pressure jet exit through granulating device 4 sprays to slag curtain, high-temperature liquid state slag under high-pressure injection
It is granulated.
For making the slag stream that slag flows to during bottom opening uniform, deflector also can be arranged on slag chute straight section 5 medial wall
8, it has shunting action, and deflector 8, along slag seam length direction setting, is the bowl structure of back-off, deflector 8 is located at
The lower section of slag import, deflector 8 can future slag shunting, make the slag stream that slag flows to bottom opening to be uniformly distributed.
This granulation system also can arrange the airduct 9 of cleaning slag seam, for ensureing the cleaning of slag seam, the airduct 9 of cleaning slag seam
Can extend at slag chute 1 inner setting position, the outlet of the airduct 9 of cleaning slag seam is just stitched to slag, clears up going out of the airduct 9 that slag stitches
Mouth is tapered configuration, such as taper or flat mouth shape, and tapered configuration is beneficial to increase the pressure in the exit of airduct 9 clearing up slag seam, clearly
The outlet distribution of airduct 9 of reason slag seam stitches mating shapes with slag.The airduct 9 of cleaning slag seam can be one or more, in Fig. 2
With one of the airduct 9 showing multiple cleaning slag seams in Fig. 3 airduct mouth.
When carrying out slag granulating using this high-temperature liquid state slag granulating system, high-temperature liquid state slag falls on deflector 8,
Deflector slag in 8 future shunts, and so that slag stream is uniformly fallen in slag chute 1, flows to the opening of the oblique section of slag chute 6 bottom, enters slag seam,
First adjusting brick 2 and the second adjusting brick 3 control the width of slag seam according to the uninterrupted carrying out slag, when carrying out the quantity of slag and becoming big, by the
One adjusting brick 2 and the second adjusting brick 3 are to two side shiftings so that slag seam width becomes big；When carrying out quantity of slag reduction, by the first adjusting brick
2 and second adjusting brick 3 to middle mobile, slag seam width is diminished.Adjusted by the left and right of the first adjusting brick 2 and the second adjusting brick 3
Section ensures to form in good shape slag curtain, ensure that the high-temperature liquid state slag entering slag chute 1 is all granulated simultaneously.It had been granulated
Cheng Zhong, the granulation jet pressure of granulating device 4 stitches the change of width with slag and changes, when slag seam width becomes big, granulating device 4
Granulation jet pressure increase, when slag seam width becomes hour, the granulation jet pressure of granulating device 4 reduces.The wind of cleaning slag seam
Pipe 9 is free air-blowing to enter always when carrying out slag it is ensured that the cleaning of slag seam, slag is smoothly derived slag seam, does not block slag seam, is formed steady
Fixed slag curtain.Air in the airduct 9 of cleaning slag seam can also change the mixed gas of steam or air and steam into.
The flow carrying out slag can be judged by the height of slag liquid level, and the flow that liquid level rising then carrys out slag becomes big, liquid
Potential drop is low, and the flow carrying out slag diminishes.Granulation system can monitor slag liquid by setting level monitoring device on slag chute 1 side wall
Position, arranges control device in granulation system simultaneously.The liquid level signal monitoring is delivered to control device by level monitoring device,
Control device adjusts the distance between the first adjusting brick 2 and the second adjusting brick 3 according to liquid level signal, that is, adjust slag seam width, with
Ensure that the liquid level in slag chute 1 keeps within the specific limits, level monitoring device can be thermocouple.
Or slag chute straight section 5 and the oblique section of slag chute 6 upper-lower position exchange in another embodiment, as shown in figure 4, slag chute straight section
5 are vertically fixedly connected on the oblique section of slag chute 6 bottom, have the bottom opening that opening constitutes slag chute 1 in the middle of slag chute straight section 5, and slag chute is straight
Section 5 and the oblique section of slag chute 6 connect the horizontal direction of end points and the oblique section of slag chute 6 has certain tilt angle alpha, 90 ° of wherein 30 ° ＜ α ＜,
Angle of inclination in the range of this is beneficial to carry out slag entrance opening.Deflector 8 is arranged on the oblique section of slag chute 6 inner side, is located at slag and enters
The lower section of mouth.First adjusting brick 2 and the second adjusting brick 3 are close to be arranged on the bottom of slag chute straight section 5, the first adjusting brick 2 He respectively
Leave gap between second adjusting brick 3 and form slag seam, slag seam is located at immediately below the bottom opening of slag chute 1.
Or in another embodiment, the first adjusting brick 2 is fixing, the second adjusting brick 3 can be mobile using mobile device 7, leads to
Cross the distance between mobile regulation the first adjusting brick 2 and second adjusting brick 3 of the second adjusting brick 3, and then adjust slag seam width, or
Person's the first adjusting brick 2 can be mobile using mobile device 7, and the second adjusting brick 3 is fixing, by the mobile regulation of the first adjusting brick 2 the
The distance between one adjusting brick 2 and the second adjusting brick 3, and then adjust slag seam width.
Granulation system in the present invention is all using exotic material, and can be placed in whole or in part in high-temperature burner hearth, really
Protect the slag after being granulated to fall in burner hearth.
Although being described in detail to the principle of the present invention above in conjunction with the preferred embodiments of the present invention, this area skill
Art personnel are it should be understood that above-described embodiment is only the explanation of the exemplary implementation to the present invention, not to bag of the present invention
Restriction containing scope.Details in embodiment is simultaneously not meant to limit the scope of the invention, in the spirit without departing substantially from the present invention and
In the case of scope, any equivalent transformation based on technical solution of the present invention, simple replace etc. obvious change, all fall within
Within the scope of the present invention.
Claims (10)
1. a kind of high-temperature liquid state slag granulating system it is characterised in that this granulation system include slag chute (1), slag seam adjusting means,
Granulating device (4)；
Described slag chute (1) bottom has opening, and described slag seam adjusting means is close to be arranged on the bottom of described slag chute (1), described
Slag seam adjusting means has slag seam, and described slag seam is located at immediately below described slag chute (1) bottom opening, and the width of described slag seam can
Adjust；
Described granulating device (4) is arranged on below described slag seam adjusting means, and described granulating device (4) has jet exit, institute
State below the jet exit of granulating device (4) stitches towards described slag, described granulating device (4) is high-pressure injection device.
2. high-temperature liquid state slag granulating system according to claim 1 is it is characterised in that described granulation system also includes leading
Stream mechanism (8), described deflector (8) is arranged on described slag chute (1) medial wall, is located at the lower section of slag import, described leads
Stream mechanism (8) is the bowl structure of back-off.
3. high-temperature liquid state slag granulating system according to claim 1 and 2 is it is characterised in that described granulation system also wraps
Include the airduct (9) of cleaning slag seam, the airduct (9) of described cleaning slag seam can extend at described slag chute (1) inner setting position, institute
The outlet stating the airduct (9) of cleaning slag seam is just stitched to described slag, and the outlet of the airduct (9) of described cleaning slag seam is tapered configuration,
The outlet distribution of the airduct (9) of described cleaning slag seam stitches mating shapes with described slag.
4. high-temperature liquid state slag granulating system according to claim 3 it is characterised in that described cleaning slag seam airduct
(9) can be one or more.
5. high-temperature liquid state slag granulating system according to claim 3 it is characterised in that described cleaning slag seam airduct
(9) interior media is air and/or steam.
6. high-temperature liquid state slag granulating system according to claim 3 is it is characterised in that described granulation system also includes liquid
Position monitoring device and control device, described level monitoring device is arranged on the side wall of described slag chute (1), described level monitoring dress
Put and the liquid level signal monitoring is delivered to described control device, described control device controls institute according to the liquid level signal receiving
State the width of slag seam.
7. high-temperature liquid state slag granulating system according to claim 1 is it is characterised in that described slag seam adjusting means includes
First removable adjusting brick (2), the second removable adjusting brick (3) and mobile device (7), the described first removable adjusting brick (2)
It is close to be arranged on described slag chute (1) bottom, the described first removable adjusting brick respectively with the described second removable adjusting brick (3)
(2) leave gap and described second removable adjusting brick (3) between and form described slag seam, described slag seam is located at described slag chute (1)
The underface of bottom opening, described mobile device (7) is arranged on the described first removable adjusting brick (2) and/or described second can
The end of mobile adjusting brick (3), the shape of described slag seam be may move with the described first removable adjusting brick (2) and described second and adjusts
The end shape of section brick (3) matches.
8. high-temperature liquid state slag granulating system according to claim 1 it is characterised in that described slag seam be shaped as rectangle
Or arc.
9. high-temperature liquid state slag granulating system according to claim 1 is it is characterised in that described slag chute (1) includes slag chute
Straight section (5) and the oblique section of slag chute (6), the end vertical of described slag chute straight section (5) section (6) oblique with described slag chute is fixedly connected, described
The upper-lower position of slag chute straight section (5) oblique section (6) with described slag chute is interchangeable, described slag chute straight section (5) and the oblique section of described slag chute (6)
Oblique section (6) has tilt angle alpha to the horizontal direction of end points of connecting with described slag chute, the described slag chute straight section (5) positioned at bottom or
The oblique section of slag chute described in person (6) has opening.
10. high-temperature liquid state slag granulating system according to claim 9 is it is characterised in that described tilt angle alpha is 30 °
90 ° of ＜ α ＜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610900314.6A CN106435062B (en) | 2016-10-14 | 2016-10-14 | A kind of high-temperature liquid state slag granulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610900314.6A CN106435062B (en) | 2016-10-14 | 2016-10-14 | A kind of high-temperature liquid state slag granulating system |
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| Publication Number | Publication Date |
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| CN106435062A true CN106435062A (en) | 2017-02-22 |
| CN106435062B CN106435062B (en) | 2018-12-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330237A (en) * | 2017-09-27 | 2018-07-27 | 中能立化科技有限公司 | A kind of slag stream conveying device and slag granulating take hot systems |
| CN108342528A (en) * | 2017-09-27 | 2018-07-31 | 中能立化科技有限公司 | A kind of conveying of slag and heat-exchange system |
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|---|---|---|---|---|
| CN101205562A (en) * | 2006-12-21 | 2008-06-25 | 张维田 | Metallurgical slag treatment method and treatment apparatus |
| CN101665845A (en) * | 2009-09-28 | 2010-03-10 | 清华大学 | Liquid blast furnace slag granulation method and device thereof |
| CN102690907A (en) * | 2011-11-25 | 2012-09-26 | 河南科技大学 | Steel slag ball production equipment and granulating system thereof |
| CN206069901U (en) * | 2016-10-14 | 2017-04-05 | 北京立化科技有限公司 | A kind of high-temperature liquid state slag granulating system |
-
2016
- 2016-10-14 CN CN201610900314.6A patent/CN106435062B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205562A (en) * | 2006-12-21 | 2008-06-25 | 张维田 | Metallurgical slag treatment method and treatment apparatus |
| CN101665845A (en) * | 2009-09-28 | 2010-03-10 | 清华大学 | Liquid blast furnace slag granulation method and device thereof |
| CN102690907A (en) * | 2011-11-25 | 2012-09-26 | 河南科技大学 | Steel slag ball production equipment and granulating system thereof |
| CN206069901U (en) * | 2016-10-14 | 2017-04-05 | 北京立化科技有限公司 | A kind of high-temperature liquid state slag granulating system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330237A (en) * | 2017-09-27 | 2018-07-27 | 中能立化科技有限公司 | A kind of slag stream conveying device and slag granulating take hot systems |
| CN108342528A (en) * | 2017-09-27 | 2018-07-31 | 中能立化科技有限公司 | A kind of conveying of slag and heat-exchange system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106435062B (en) | 2018-12-11 |
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