CN106435062B - A kind of high-temperature liquid state slag granulating system - Google Patents
A kind of high-temperature liquid state slag granulating system Download PDFInfo
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- CN106435062B CN106435062B CN201610900314.6A CN201610900314A CN106435062B CN 106435062 B CN106435062 B CN 106435062B CN 201610900314 A CN201610900314 A CN 201610900314A CN 106435062 B CN106435062 B CN 106435062B
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- slag
- seam
- chute
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- slag chute
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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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Furnace Details (AREA)
- Manufacture Of Iron (AREA)
Abstract
The present invention relates to a kind of high-temperature liquid state slag granulating systems; the granulation system includes slag chute, slag seam regulating device, granulating device; slag chute bottom has opening; slag seam regulating device is close to that the bottom of slag chute is arranged in; slag stitches regulating device and stitches with slag; slag seam is located at immediately below slag chute bottom opening; the width of slag seam can be adjusted; granulating device setting is below slag seam regulating device; granulating device has jet exit; the jet exit of granulating device stitches lower section towards slag, and granulating device is high-pressure injection device.The width that the granulation system is stitched according to the flow control slag for carrying out slag comes after slag is fallen by slag seam to be granulated device granulation, and the pressure of the width control granulation jet stream according to slag seam.Present system structure is simple, small in size, easy to operate, high reliablity when to slag granulating, ideal using the solution of the present invention granulation effect, and greatly reduces the investment and operating cost of equipment.
Description
Technical field
The present invention relates to high temperature furnace slags to be granulated field, and in particular to a kind of high-temperature liquid state slag granulating system.
Background technique
Blast furnace ironmaking generates a large amount of high-temperature liquid state slag in metallurgy industry, currently, processing slag mainly uses water quenching,
Water quenching processing mainly has bottom to consider method, Yin Bafa, Tula method, Lhasa method, Ming Tekefa etc., needs in this method treatment process
A large amount of water is consumed, and a large amount of H can be generated during processing2S and SOxEqual pernicious gases, environmental pollution is serious.At present
The more representational dry granulation of appearance is wind quenching method and centrifugal process, and wind quenching method is to generate high speed with high-power granulation blower fan
Air-flow dispels, is granulated liquid blast furnace, and power consumption is big, equipment bulky complex, take up a large area, invest and operating cost is high,
In liquid blast furnace changes in flow rate, wind speed and air quantity are not easy to coordinate.Centrifugal process is generated by turntable or revolving cup high speed rotation
Centrifugal force by liquid blast furnace slag granulation, the particle diameter distribution of granulated slag is more uniform, but high-speed rotating granulation dress at high temperature
The reliability set is poor, and granulation effect is more sensitive to the temperature and changes in flow rate of liquid blast furnace in addition, only by adjusting revolving speed
The effect is unsatisfactory.
Summary of the invention
For the above-mentioned problem in high-temperature liquid state slag treatment, the present invention provides a kind of high-temperature liquid state slag granulating
System.
A kind of high-temperature liquid state slag granulating system, which is characterized in that the granulation system include slag chute, slag seam regulating device,
Granulating device；
The slag chute bottom has opening, and the slag seam regulating device is close to that the bottom of the slag chute, the slag is arranged in
It stitches regulating device to stitch with slag, the slag seam is located at immediately below the slag chute bottom opening, and the width of the slag seam can be adjusted；
Below slag seam regulating device, the granulating device has jet exit, described for the granulating device setting
The jet exit of granulating device stitches lower section towards the slag, and the granulating device is the injection apparatus of high pressure water or high pressure gas.
Further, the granulation system further includes deflector, and the deflector is arranged on the inside of the slag chute
On wall, it is located at the lower section for carrying out slag import, the deflector is the bowl structure of back-off.
Further, the granulation system further includes the air hose for clearing up slag seam, and the air hose of the cleaning slag seam can be stretched
Enter at slag chute inner setting position, slag seam described in the outlet face of the air hose of the cleaning slag seam, the cleaning slag seam
The outlet of air hose is tapered configuration, and the outlet distribution of the air hose of the cleaning slag seam matches with the slag slit shape.
Further, the air hose of the cleaning slag seam can be one or more.
Further, the interior media of the air hose of the cleaning slag seam is air and/or steam.
Further, the granulation system further includes level monitoring device and control device, the level monitoring device
It is arranged on the side wall of the slag chute, the liquid level signal monitored is delivered to the control device by the level monitoring device,
The control device controls the width of the slag seam according to the liquid level signal received.
Further, the slag seam regulating device includes the first removable adjusting brick, the second removable adjusting brick and shifting
Dynamic device, the first removable adjusting brick and the second removable adjusting brick are close to be arranged respectively in the slag chute bottom,
There are gaps to form the slag seam between the first removable adjusting brick and the second removable adjusting brick, and the slag stitches position
In the underface of the slag chute bottom opening, the mobile device setting is in the described first removable adjusting brick and/or described the
The end of two removable adjusting bricks, the shape of the slag seam and the described first removable adjusting brick and the second removable adjusting
The end shape of brick matches.
Further, the shape of the slag seam is rectangle or arc.
Further, the slag chute includes slag chute straight section and the oblique section of slag chute, the slag chute straight section and the oblique section of the slag chute
End vertical be fixedly connected, the slag chute straight section and the upper and lower position of the oblique section of the slag chute are interchangeable, the slag chute straight section and
The oblique section of slag chute connect endpoint horizontal direction and the oblique section of the slag chute have inclination angle alpha, the slag chute positioned at lower part
Straight section or the oblique section of the slag chute have opening.
Further, the inclination angle alpha is 30 ° of 90 ° of < α <.
Beneficial effects of the present invention:
It is the configuration of the present invention is simple, small in size, the width and granulation dress of slag seam can be adjusted in real time according to the uninterrupted for carrying out slag
The jet pressure set；Deflector shunts the slag for entering slag chute, ensure that the slag stream before forming slag curtain uniformly, surely
It is fixed, good structure guarantee is provided for the formation of uniform slag curtain；By the air hose of installation cleaning slag seam, guarantee the cleaning of slag seam,
Slag is smoothly exported to slag seam, slag seam is not blocked, forms stable slag curtain；According to actually come slag the case where, slag seam shape into
One step ensure that the slag curtain thickness into granulating device is uniform, make even particle size after granulation, and granulation efficiency improves.Using this
Easy to operate, high reliablity when invention system is to slag granulating, granulation effect is ideal, and greatly reduces the investment and fortune of equipment
Row cost.
Detailed description of the invention
Fig. 1 is one schematic diagram of high-temperature liquid state slag granulating system structure of the present invention；
Fig. 2 is high-temperature liquid state slag granulating system schematic top plan view when rectangle slag of the present invention stitches；
Fig. 3 is high-temperature liquid state slag granulating system schematic top plan view when arc slag of the present invention stitches；
Fig. 4 is two schematic diagram of high-temperature liquid state slag granulating system structure of the present invention.
In attached 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 6 of slag chute, mobile device
7, the air hose 9 of deflector 8, cleaning slag seam.
Specific embodiment
The invention will be further described with reference to the accompanying drawing and by specific embodiment, and following embodiment is descriptive
, it is not restrictive, this does not limit the scope of protection of the present invention.
A kind of high-temperature liquid state slag granulating system in the present embodiment can receive high-temperature liquid state slag, and carry out to slag
Granulated processed, treated, and slag can be to its secondary use.
As shown in Figure 1, the granulation system includes slag chute 1, the first adjusting brick 2, the second adjusting brick 3, granulating device 4.
Slag chute 1 includes that slag chute straight section 5 and the oblique section 6 of slag chute, slag chute straight section 5 are vertically fixedly connected on the top of the oblique section 6 of slag chute,
Oblique 6 bottom of section of slag chute has an opening, and slag chute straight section 5 and the oblique section 6 of slag chute connect the horizontal direction of endpoint and the oblique section 6 of slag chute has centainly
Inclination angle alpha, wherein 30 ° of 90 ° of < α <, the tilt angle within the scope of this is conducive to carry out slag to enter bottom opening.
First adjusting brick 2 and the second adjusting brick 3 are close to that the bottom of the oblique section 6 of slag chute, the first adjusting brick 2 and is arranged in respectively
There are gaps to form slag seam between two adjusting bricks 3, and slag seam is located at the underface of oblique 6 bottom opening of section of slag chute, 2 He of the first adjusting brick
The end of second adjusting brick 3 is respectively equipped with a mobile device 7, and mobile device 7 can change the first adjusting brick 2 or second and adjust
The horizontal position of brick 3, i.e., using the distance between adjustable first adjusting brick 2 of mobile device 7 and second adjusting brick 3, in turn
Adjustable slag slit width degree, the shape of slag seam and the end shape of the first adjusting brick 2 and the second adjusting brick 3 match, and can be square
Shape (see Fig. 2) or arc (see Fig. 3).
The lower section of the first adjusting brick 2 is arranged in granulating device 4, and granulating device 4 is the injection dress of high pressure water or high pressure gas
It sets, granulating device 4 has jet exit, and the jet exit of granulating device 4 stitches lower section towards slag, carrys out slag and is formed after slag seam is fallen
The jet exit of slag curtain, high pressure water or high pressure gas through granulating device 4 is sprayed to slag curtain, the high-temperature liquid state slag under high-pressure injection
It is granulated.
For uniform, the also settable deflector on 5 inner sidewall of slag chute straight section that makes to come slag stream when slag flows to bottom opening
8, with shunting function, deflector 8 is along slag seam length direction setting, and for the bowl structure of back-off, deflector 8, which is located at, to be come
The lower section of slag import, deflector 8 can slag in future shunt, make to come slag and flow to the slag stream of bottom opening to be uniformly distributed.
The air hose 9 of the also settable cleaning slag seam of the granulation system, for guaranteeing the cleaning of slag seam, the air hose 9 of cleaning slag seam
It can extend at 1 inner setting position of slag chute, the outlet face slag seam of the air hose 9 of cleaning slag seam, the air hose 9 of cleaning slag seam goes out
Mouth is tapered configuration, and such as taper or flat mouth shape, tapered configuration is conducive to increase the pressure in the exit for the air hose 9 that cleaning slag stitches, clearly
The outlet distribution of the air hose 9 of reason slag seam matches with slag slit shape.The air hose 9 for clearing up slag seam can be one or more, in Fig. 2
With shown in Fig. 3 it is multiple cleaning slags seam air hoses 9 in an air hose mouths.
Using the high-temperature liquid state slag granulating system carry out slag granulating when, high-temperature liquid state slag falls on deflector 8,
Deflector slag in 8 future shunts, and falls into slag stream uniformly in slag chute 1, flows to the opening of oblique 6 bottom of section of slag chute, stitches into slag,
First adjusting brick 2 and the second adjusting brick 3 control the width that slag stitches according to the uninterrupted for carrying out slag, when carrying out the quantity of slag and becoming larger, by the
One adjusting brick 2 and the second adjusting brick 3 are mobile to two sides, so that slag slit width degree becomes larger；When carrying out quantity of slag reduction, by the first adjusting brick
2 and second adjusting brick 3 it is mobile to centre, slag slit width degree is become smaller.It is adjusted by the left and right of the first adjusting brick 2 and the second adjusting brick 3
Section guarantees to form in good shape slag curtain, while ensure that the high-temperature liquid state slag into slag chute 1 is all granulated.It had been granulated
The granulation jet pressure of Cheng Zhong, granulating device 4 change with the change of slag slit width degree, when slag slit width degree becomes larger, granulating device 4
Granulation jet pressure increase, when slag slit width degree becomes smaller, the granulation jet pressure of granulating device 4 is reduced.Clear up the wind of slag seam
Pipe 9 is always free air-blowing to enter when carrying out slag, guarantees the cleaning of slag seam, and slag is smoothly exported to slag seam, does not block slag seam, is formed steady
Fixed slag curtain.Air in the air hose 9 of cleaning slag seam can also change steam into, or the mixed gas of air and steam.
The flow for carrying out slag can be judged that the flow that liquid level raising then carrys out slag becomes larger, liquid by the height of slag liquid level
Potential drop is low, and the flow for carrying out slag becomes smaller.Granulation system can monitor slag liquid by the way that level monitoring device is arranged on 1 side wall of slag chute
Control device is arranged in position simultaneously in granulation system.The liquid level signal monitored 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, i.e. adjusting slag slit width degree, with
Guarantee that the liquid level in slag chute 1 is kept in a certain range, level monitoring device can be thermocouple.
Or slag chute straight section 5 and oblique 6 upper and lower position of section of slag chute exchange in another embodiment, as shown in figure 4, slag chute straight section
5 are vertically fixedly connected on oblique 6 bottom end of section of slag chute, have the bottom opening of opening composition slag chute 1 among slag chute straight section 5, slag chute is straight
Section 5 and the oblique section 6 of slag chute connect the horizontal direction of endpoint and the oblique section 6 of slag chute has certain inclination angle alpha, wherein 30 ° of 90 ° of < α <,
Tilt angle within the scope of this is conducive to carry out slag to enter opening.The setting of deflector 8 on 6 inside of the oblique section of slag chute, be located at come slag into
The lower section of mouth.First adjusting brick 2 and the second adjusting brick 3 are close to that the bottom of slag chute straight section 5,2 He of the first adjusting brick is arranged in respectively
There are gaps to form slag seam between second adjusting brick 3, and slag seam is located at immediately below the bottom opening of slag chute 1.
Or in another embodiment, the first adjusting brick 2 is fixed, and the second adjusting brick 3 can be mobile using mobile device 7, leads to
The distance between mobile adjusting the first adjusting brick 2 and the second adjusting brick 3 of the second adjusting brick 3 are crossed, and then adjusts slag slit width degree, or
The first adjusting brick of person 2 can be mobile using mobile device 7, and the second adjusting brick 3 is fixed, passes through the mobile adjusting of the first adjusting brick 2 the
The distance between one adjusting brick 2 and the second adjusting brick 3, and then adjust slag slit width degree.
Granulation system in the present invention uses heat-resisting material, and can be placed in high-temperature burner hearth in whole or in part, really
The slag protected after being granulated is fallen into burner hearth.
Although the principle of the present invention is described in detail above in conjunction with the preferred embodiment of the present invention, this field skill
Art personnel are it should be understood that above-described embodiment is only the explanation to exemplary implementation of the invention, not to present invention packet
Restriction containing range.Details in embodiment is simultaneously not meant to limit the scope of the invention, without departing substantially from spirit of the invention and
In the case where range, any equivalent transformation based on technical solution of the present invention, simple replacement etc. obviously change, and all fall within
Within the scope of the present invention.
Claims (10)
1. a kind of high-temperature liquid state slag granulating system, which is characterized in that the granulation system include slag chute (1), slag seam regulating device,
Granulating device (4)；
Slag chute (1) bottom has an opening, and slag seam regulating device includes the first removable adjusting brick (2), second removable
Dynamic adjusting brick (3) and mobile device (7), the first removable adjusting brick (2) and the second removable adjusting brick (3) are respectively
Be close to setting in the slag chute (1) bottom, the first removable adjusting brick (2) and the second removable adjusting brick (3) it
Between there are gaps to form slag seam, the slag seam is located at immediately below the slag chute (1) bottom opening, the width energy of the slag seam
It is enough to adjust；The mobile device (7) is arranged in the described first removable adjusting brick (2) and/or the second removable adjusting brick
(3) end, the shape of slag seam and the described first removable adjusting brick (2) and the second removable adjusting brick (3)
End shape matches；
Below slag seam regulating device, the granulating device (4) has jet exit, institute for granulating device (4) setting
The jet exit for stating granulating device (4) stitches lower section towards the slag, and the granulating device (4) is the spray of high pressure water or high pressure gas
Injection device.
2. high-temperature liquid state slag granulating system according to claim 1, which is characterized in that the granulation system further includes leading
It flows mechanism (8), the deflector (8) is arranged on the slag chute (1) inner sidewall, is located at the lower section for carrying out slag import, described to lead
Stream mechanism (8) is the bowl structure of back-off.
3. high-temperature liquid state slag granulating system according to claim 1 or 2, which is characterized in that the granulation system also wraps
The air hose (9) of cleaning slag seam is included, the air hose (9) of the cleaning slag seam can extend at the slag chute (1) inner setting position, institute
Slag seam described in the outlet face of the air hose (9) of cleaning slag seam is stated, the outlet of the air hose (9) of the cleaning slag seam is tapered configuration,
The outlet distribution of the air hose (9) of the cleaning slag seam matches with the slag slit shape.
4. high-temperature liquid state slag granulating system according to claim 3, which is characterized in that the air hose of the cleaning slag seam
It (9) is one or more.
5. high-temperature liquid state slag granulating system according to claim 3, which is characterized in that the air hose of the cleaning slag seam
(9) interior media is air and/or steam.
6. high-temperature liquid state slag granulating system according to claim 3, which is characterized in that the granulation system further includes liquid
Position monitoring device and control device, the level monitoring device are arranged on the side wall of the slag chute (1), the level monitoring dress
It sets the liquid level signal that will be monitored and is delivered to the control device, the control device controls institute according to the liquid level signal received
State the width of slag seam.
7. high-temperature liquid state slag granulating system according to claim 1, which is characterized in that the shape of the slag seam is rectangle
Or arc.
8. high-temperature liquid state slag granulating system according to claim 1, which is characterized in that the slag chute (1) includes slag chute
Straight section (5) and the oblique section of slag chute (6), the slag chute straight section (5) is vertically fixedly connected on the top of the oblique section of the slag chute (6), described
Slag chute straight section (5) and the oblique section of the slag chute (6) connect endpoint horizontal direction and the oblique section of the slag chute (6) have inclination angle alpha,
The oblique section of slag chute (6) bottom has opening.
9. high-temperature liquid state slag granulating system according to claim 1, which is characterized in that the slag chute (1) includes slag chute
Straight section (5) and the oblique section of slag chute (6), the slag chute straight section (5) are vertically fixedly connected on the oblique section of the slag chute (6) bottom end, the slag
There is among slot straight section (5) opening, the slag chute straight section (5) and the oblique section of the slag chute (6) connect endpoint horizontal direction and institute
The oblique section of slag chute (6) is stated with inclination angle alpha.
10. high-temperature liquid state slag granulating system according to claim 8 or claim 9, which is characterized in that the inclination angle alpha is
30 ° of 90 ° of < α <.
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| CN201610900314.6A CN106435062B (en) | 2016-10-14 | 2016-10-14 | A kind of high-temperature liquid state slag granulating system |
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| CN201610900314.6A CN106435062B (en) | 2016-10-14 | 2016-10-14 | A kind of high-temperature liquid state slag granulating system |
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| CN106435062A CN106435062A (en) | 2017-02-22 |
| CN106435062B true CN106435062B (en) | 2018-12-11 |
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| 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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| CN101205562B (en) * | 2006-12-21 | 2014-05-14 | 张维田 | Metallurgical slag treatment method and treatment apparatus |
| CN101665845B (en) * | 2009-09-28 | 2011-06-15 | 清华大学 | Liquid blast furnace slag granulation method and device thereof |
| CN102690907B (en) * | 2011-11-25 | 2014-07-02 | 河南科技大学 | Steel slag ball production equipment |
| 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 |
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