CN109338022A - High-temperature liquid state steel slag is atomized Laval nozzle, atomization bellows and atomization method - Google Patents
High-temperature liquid state steel slag is atomized Laval nozzle, atomization bellows and atomization method Download PDFInfo
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- CN109338022A CN109338022A CN201811506665.4A CN201811506665A CN109338022A CN 109338022 A CN109338022 A CN 109338022A CN 201811506665 A CN201811506665 A CN 201811506665A CN 109338022 A CN109338022 A CN 109338022A
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- liquid state
- temperature liquid
- steel slag
- state steel
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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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- 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
- C21B3/08—Cooling 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
- 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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- Manufacturing & Machinery (AREA)
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- Metallurgy (AREA)
- Organic Chemistry (AREA)
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Abstract
The invention discloses a kind of high-temperature liquid state steel slag atomization Laval nozzle, atomization bellows and atomization method, it is related to metallurgical industry field, the technical issues of solution is to provide a kind of Laval nozzle for being suitble to be atomized high-temperature liquid state steel slag.The technical solution adopted by the present invention is that: high-temperature liquid state steel slag is atomized Laval nozzle, the lumen of Laval nozzle is symmetrical about centerline axis, lumen is sequentially entrance, narrowed section, parallel-segment and outlet section along injection direction, pass through the optimization design to each section, air-flow can be accelerated to reasonable speed, high-temperature liquid state steel slag is atomized, and reaches good blowing effect.The present invention also provides a kind of high-temperature liquid state steel slags to be atomized bellows, solve the problems, such as that existing bellows are poor to the atomizing effect of high-temperature liquid state steel slag, the technical solution adopted is that: high-temperature liquid state steel slag is atomized bellows, including cabinet, aperture is arranged in the side of cabinet, the above-mentioned Laval nozzle of setting in the aperture of cabinet.
Description
Technical field
The present invention relates to metallurgical industry field, especially a kind of bellows that molten steel, liquid steel slag etc. are atomized
With atomization method.
Background technique
In field of metallurgy, it is often necessary to be in a liquid state to high temperature, room temperature is in solid raw material, be used when it is high-temperature liquid state
High-speed flow is broken into droplet, and flight is cooled down in the sky, and the solid particle of unifonn spherical is formed after landing, this
Process is known as being atomized, also referred to as " gas is broken ".
Carrying out atomization process mode for the liquid steel slag of fresh baked is: being blown with compressed air, makes it in the sky
Dispersion forms atomization slag ball, also referred to as " PS ball " after landing.In the process, the device that compressed air realizes injection is directly provided
Tool is bellows, and the design of bellows is very crucial, especially the design of jet pipe, directly affects the technological effect of atomization.Existing bellows
Jet pipe be not appropriate for the atomization of high-temperature liquid state steel slag, there is a problem of being blown effect difference, specifically there is following both sides and ask
Topic.On the one hand, liquid steel slag does not dispel, and liquid steel slag, which is largely scattered in bellows, forms hardened slag.On the other hand, blowing away from
Remote from not enough, aerial cooling time falls short of, although drop steel slag is formed, is bonded together after landing because temperature is excessively high, shape
At bulk.
Summary of the invention
Present invention technical problems to be solved first are to provide a kind of Bearing score for being suitble to be atomized high-temperature liquid state steel slag
That jet pipe.
The technical solution adopted by the present invention to solve the technical problems is: high-temperature liquid state steel slag is atomized Laval nozzle, draws
The lumen of Wa Er jet pipe is symmetrical about centerline axis, the lumen of Laval nozzle along injection direction be sequentially entrance, narrow section,
Parallel-segment and outlet section, wherein the diameter of entrance inner tubal wall is 42mm, and the length for narrowing section is 14mm, and narrows the inner tube of section
Wall is the quarter circular arc that radius is 14mm, and the diameter of parallel-segment inner tubal wall is 14mm, length 14mm, outlet section inner tubal wall
Length be 18.6mm, outlet section connect parallel-segment side inner tubal wall diameter be 14m, side of the outlet section far from parallel-segment
Inner tubal wall diameter be 16.6mm.
Specific: the pipe range of the entrance is 12mm.
The beneficial effect of high-temperature liquid state steel slag atomization Laval nozzle of the present invention is: Laval nozzle can accelerate to air-flow
Reasonable speed is atomized high-temperature liquid state steel slag, reaches good blowing effect.Laval nozzle can mention high-speed flow
It is raised to velocity of sound or more, more preferably high-temperature liquid state steel slag is blown effect to realize.
The present invention also provides a kind of high-temperature liquid state steel slags to be atomized bellows, solves atomization of the existing bellows to high-temperature liquid state steel slag
The problem of effect difference.
The technical solution adopted by the present invention is that: high-temperature liquid state steel slag is atomized bellows, including cabinet, and box house is hollow knot
High-speed flow connector is arranged in structure, cabinet, and aperture is arranged in the side of cabinet, any of the above-described Lavalle spray of setting in the aperture of cabinet
Pipe.
Further, two rows aperture, upper row eight, lower row seven, upper rows of openings and lower row is arranged in the cabinet
Aperture dislocation is arranged, Laval nozzle is respectively set at the center of aperture.
Specific: the radius r of the upper rows of openings and lower rows of openings is 8.3mm, and upper rows of openings and lower rows of openings are any
The distance b at the center of two neighboring aperture is 46.6mm, between the upper two neighboring aperture of row and the two apertures under arrange
The triangle that the center in hole is linked to be is equilateral triangle.
Specific: the cabinet is made of steel plate material, and in a rectangular parallelepiped shape, the back side setting high-speed flow of cabinet connects cabinet
Aperture is arranged before cabinet for head.
The beneficial effect of high-temperature liquid state steel slag atomization bellows of the present invention is: high-temperature liquid state steel slag atomization bellows set high-speed flow
Connector connects high-speed flow, such as compressed air, high-pressure inert gas, air blower air blast etc., and speed is more after air-flow passes through cabinet
It is projected from Laval nozzle fastly, reaches broken, atomization high-temperature liquid state steel slag, form it into bead, atomizing effect is good.
The present invention also provides a kind of high-temperature liquid state steel slag atomization methods, solve atomization of the existing method to high-temperature liquid state steel slag
The problem of effect difference.
The technical solution adopted by the present invention is that: high-temperature liquid state steel slag atomization method passes through any of the above-described high-temperature liquid state steel slag
Atomization bellows carry out blowing atomization to high-temperature liquid state steel slag, and the flight time is not less than 1.25s to high-temperature liquid state steel slag in the sky.
Further, the gas source that the high-speed flow connector of the cabinet connects is the compression that pressure is 0.5~0.8MPa
Air or high-speed flow lower than mach one.
The friendship effect of high-temperature liquid state steel slag atomization method of the present invention is: high-temperature liquid state steel slag blowing distance is remote, forming,
Non-binding has the advantages that injection initial velocity is high, distance is remote, crushing effect is good, has reached good effect.
Detailed description of the invention
Fig. 1 is the lumen schematic diagram of high-temperature liquid state steel slag atomization Laval nozzle of the present invention.
Fig. 2 is the schematic diagram of high-temperature liquid state steel slag atomization bellows setting aperture one side of the present invention.
Components, position and number in figure: Laval nozzle 1, narrows section 12, parallel-segment 13, outlet section at entrance 11
14；Cabinet 2, aperture 21.Unit in Fig. 1 about length and the mark of radius is mm.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1, high-temperature liquid state steel slag of the present invention is atomized Laval nozzle, the lumen of Laval nozzle 1 is about center
Spool is symmetrical, and the lumen of Laval nozzle 1 is sequentially entrance 11 along injection direction, narrows section 12, parallel-segment 13 and outlet section
14, direction according to Fig. 1, as injection direction from left to right.Wherein, the diameter of 11 inner tubal wall of entrance is 42mm, entrance
The length of section 11 is arranged according to actual needs, such as the pipe range of entrance 11 is 12mm.Narrow 12 inner tubal wall of section length be
14mm, and the inner tubal wall for narrowing section 12 is the quarter circular arc that radius is 14mm.Narrow the inner tubal wall and entrance 11 of section 12
Inner tubal wall junction be mutually perpendicular to, narrow 12 inner tubal wall of section and 13 inner tubal wall contact position of parallel-segment smooth transition.Parallel-segment 13
The diameter of inner tubal wall is 14mm, length 14mm.The length of outlet section 14 is 18.6mm, and outlet section 12 connects the one of parallel-segment 13
The inner tubal wall diameter of side is 14m, and the inner tubal wall diameter of side of the outlet section 14 far from parallel-segment 13 is 16.6mm.
As shown in Fig. 2, high-temperature liquid state steel slag is atomized bellows, including cabinet 2, it is hollow structure inside cabinet 2, cabinet 2 is set
High-speed flow connector is set, high-speed flow connector with high-pressure air source for being connected.Cabinet 2 selects the material that can bear high pressure draught impact
Material is made, such as steel plate or the production of other hard materials.Aperture 21 is arranged in the side of cabinet 2, in the aperture 21 of cabinet 2 in setting
State Laval nozzle 1.High-speed flow connector and aperture 21 two sides that be distributed in cabinet 2 opposite, such as cabinet 2 is in a rectangular parallelepiped shape,
High-speed flow connector is set to the back side of cabinet, and aperture 21 is set to before cabinet.
Two rows aperture 21, upper row eight, lower row seven, the aperture 21 of the aperture 21 of upper row and lower row is arranged in cabinet 2
Dislocation is arranged, Laval nozzle 1 is respectively set at the center of aperture 21.The radius r of the aperture 21 of upper row and the aperture 21 of lower row
It is 8.3mm, i.e., all apertures are in the same size.The center of 21 two apertures 21 of arbitrary neighborhood of upper rows of openings 21 and lower rows of openings
Distance b be 46.6mm, i.e., the upper lower rows of openings 21 arranged between two neighboring aperture 21 and the two apertures 21 be linked to be three
Angular is equilateral triangle；Correspondingly, the upper rows of openings 21 between the lower two neighboring aperture 21 of row and the two apertures 21 is linked to be
Triangle be also equilateral triangle.
High-temperature liquid state steel slag atomization method of the present invention is atomized bellows to high-temperature liquid state steel slag by above-mentioned high-temperature liquid state steel slag
Blowing atomization is carried out, high-speed flow connector connects high-speed flow, and speed is faster from Laval nozzle 1 after air-flow passes through cabinet 2
Middle injection, the flight time is not less than 1.25s to high-temperature liquid state steel slag in the sky, and being finally reached broken, spraying liquid solid makes its shape
At the purpose of bead.Cabinet 2 high-speed flow connector connection gas source be suitably for pressure be 0.5~0.8MPa compressed air or
Lower than the high-speed flow of mach one.
Method of the invention is illustrated for using 0.55MPa compressed air spraying liquid converter slag.It will be upper
The high-speed flow connector for stating high-temperature liquid state steel slag atomization bellows is connected with compressed air pipe, it is ensured that after experimental condition, opens pressure
Contracting air flows out liquid converter slag by experimental rig, with the compressed air after the atomization bellows speed-raising of high-temperature liquid state steel slag
It is blown, discovery steel slag blowing distance is remote, and forming, non-binding achieves the desired results.After measured, the bellows blows air
Pressure is 1.56MPa.
Claims (8)
1. high-temperature liquid state steel slag is atomized Laval nozzle (1), the lumen of Laval nozzle (1) is symmetrical about centerline axis, special
Sign is: the lumen of Laval nozzle (1) along injection direction be sequentially entrance (11), narrow section (12), parallel-segment (13) and
Outlet section (14), wherein the diameter of entrance (11) inner tubal wall is 42mm, and the length for narrowing section (12) is 14mm, and narrows section
(12) inner tubal wall is the quarter circular arc that radius is 14mm, and the diameter of parallel-segment (13) inner tubal wall is 14mm, length is
14mm, the length of outlet section (14) inner tubal wall are 18.6mm, and the inner tubal wall that outlet section (14) connects the side of parallel-segment (13) is straight
Diameter is 14m, and the inner tubal wall diameter of side of the outlet section (14) far from parallel-segment (13) is 16.6mm.
2. high-temperature liquid state steel slag as described in claim 1 is atomized Laval nozzle, it is characterised in that: the entrance (11)
Pipe range is 12mm.
It is hollow structure inside cabinet (2), it is characterised in that: cabinet 3. high-temperature liquid state steel slag is atomized bellows, including cabinet (2)
(2) high-speed flow connector is set, and the side of cabinet (2) is arranged aperture (21), aforesaid right is arranged in the aperture (21) of cabinet (2)
It is required that Laval nozzle described in 1 or 2 (1).
4. high-temperature liquid state steel slag as claimed in claim 3 is atomized bellows, it is characterised in that: two above and below cabinet (2) setting
Rows of openings (21), upper row eight, lower row seven, upper rows of openings (21) and lower rows of openings (21) dislocation are arranged, in aperture (21)
Laval nozzle (1) is respectively set at the heart.
5. high-temperature liquid state steel slag as claimed in claim 4 is atomized bellows, it is characterised in that: the upper rows of openings (21) and lower row
The radius r of aperture (21) is 8.3mm, the center of two apertures (21) of upper rows of openings (21) and lower rows of openings (21) arbitrary neighborhood
Distance b be 46.6mm, in the lower rows of openings (21) between the upper two neighboring aperture of row (21) and the two apertures (21)
The triangle that the heart is linked to be is equilateral triangle.
6. the high-temperature liquid state steel slag as described in claim 3,4 or 5 is atomized bellows, it is characterised in that: the cabinet (2) is by steel plate
Material is made, and in a rectangular parallelepiped shape, high-speed flow connector is arranged in the back side of cabinet (2) to cabinet (2), is arranged before cabinet (2) and opens
Hole (21).
7. high-temperature liquid state steel slag atomization method, it is characterised in that: by described in 3~6 any claim of the claims
High-temperature liquid state steel slag atomization bellows carry out blowing atomization to high-temperature liquid state steel slag, and the flight time is not low in the sky for high-temperature liquid state steel slag
In 1.25s.
8. high-temperature liquid state steel slag atomization method as claimed in claim 7, it is characterised in that: the high-speed flow of the cabinet (2)
The gas source of connector connection is the compressed air that pressure is 0.5~0.8MPa or the high-speed flow lower than mach one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506665.4A CN109338022A (en) | 2018-12-10 | 2018-12-10 | High-temperature liquid state steel slag is atomized Laval nozzle, atomization bellows and atomization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506665.4A CN109338022A (en) | 2018-12-10 | 2018-12-10 | High-temperature liquid state steel slag is atomized Laval nozzle, atomization bellows and atomization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109338022A true CN109338022A (en) | 2019-02-15 |
Family
ID=65303637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811506665.4A Pending CN109338022A (en) | 2018-12-10 | 2018-12-10 | High-temperature liquid state steel slag is atomized Laval nozzle, atomization bellows and atomization method |
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| Country | Link |
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| CN (1) | CN109338022A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110218008A (en) * | 2019-06-24 | 2019-09-10 | 华北理工大学 | A kind of carbon containing molten iron carries out the method modified except iron to liquid steel slag of coming out of the stove |
| CN110950605A (en) * | 2019-12-18 | 2020-04-03 | 钢城集团凉山瑞海实业有限公司 | High-wear-resistance water-permeable brick surface layer and preparation method thereof |
| CN111218533A (en) * | 2020-01-08 | 2020-06-02 | 西安建筑科技大学 | Steel slag recycling treatment method |
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|---|---|---|---|---|
| CN201400690Y (en) * | 2009-04-09 | 2010-02-10 | 河北理工大学 | Supersonic gas nozzle for granulating liquid molten slags |
| CN102453781A (en) * | 2011-12-13 | 2012-05-16 | 河南科技大学 | High-temperature liquid-state steel slag granulating device and process |
| CN103361452A (en) * | 2013-07-17 | 2013-10-23 | 潍坊强力船舶用品有限公司 | Granulating device for molten steel or iron slag |
| CN104232819A (en) * | 2013-06-20 | 2014-12-24 | 山东建筑大学 | Granulating device and method of liquid steel slag or liquid iron slag |
-
2018
- 2018-12-10 CN CN201811506665.4A patent/CN109338022A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201400690Y (en) * | 2009-04-09 | 2010-02-10 | 河北理工大学 | Supersonic gas nozzle for granulating liquid molten slags |
| CN102453781A (en) * | 2011-12-13 | 2012-05-16 | 河南科技大学 | High-temperature liquid-state steel slag granulating device and process |
| CN104232819A (en) * | 2013-06-20 | 2014-12-24 | 山东建筑大学 | Granulating device and method of liquid steel slag or liquid iron slag |
| CN103361452A (en) * | 2013-07-17 | 2013-10-23 | 潍坊强力船舶用品有限公司 | Granulating device for molten steel or iron slag |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110218008A (en) * | 2019-06-24 | 2019-09-10 | 华北理工大学 | A kind of carbon containing molten iron carries out the method modified except iron to liquid steel slag of coming out of the stove |
| CN110218008B (en) * | 2019-06-24 | 2021-11-05 | 华北理工大学 | Method for carrying out iron removal modification on liquid steel slag discharged from furnace by using carbon-containing molten iron |
| CN110950605A (en) * | 2019-12-18 | 2020-04-03 | 钢城集团凉山瑞海实业有限公司 | High-wear-resistance water-permeable brick surface layer and preparation method thereof |
| CN111218533A (en) * | 2020-01-08 | 2020-06-02 | 西安建筑科技大学 | Steel slag recycling treatment method |
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Application publication date: 20190215 |