CN115418420A - Treatment device and treatment method for improving wind breaking and slagging of steel slag - Google Patents
Treatment device and treatment method for improving wind breaking and slagging of steel slag Download PDFInfo
- Publication number
- CN115418420A CN115418420A CN202211176300.6A CN202211176300A CN115418420A CN 115418420 A CN115418420 A CN 115418420A CN 202211176300 A CN202211176300 A CN 202211176300A CN 115418420 A CN115418420 A CN 115418420A
- Authority
- CN
- China
- Prior art keywords
- steel slag
- wind
- crushing
- slagging
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
Abstract
The invention belongs to a treatment device for improving steel slag wind breaking and slagging in the technical field of steel making, and also relates to a treatment method for improving steel slag wind breaking and slagging. The invention discloses a treatment device and a treatment method for improving steel slag wind breaking slagging, which are characterized in that a granulating component (2) is arranged on one side of a steel slag chute (1) arranged in a wind breaking chamber (4), the granulating component (2) extends into the wind breaking chamber (4), a water pool (5) is arranged on the lower portion of the wind breaking chamber (4), the granulating component (2) comprises a component cavity (14), a nozzle group (11) is arranged on a front end panel (12) of the component cavity (14) positioned in the wind breaking chamber (4), the nozzle group (11) comprises a plurality of nozzles (13), and the plurality of nozzles (13) form a double-layer arc distribution structure.
Description
Technical Field
The invention belongs to the technical field of steel making, and particularly relates to a treatment device for improving steel slag wind-crushing slagging, and a treatment method for improving steel slag wind-crushing slagging.
Background
The steel slag wind crushing treatment process is a treatment process for crushing hot steel slag into tiny particles by using high-pressure high-speed gas and cooling and recycling the tiny particles, and has the characteristics of economy, high efficiency, environmental protection and the like; however, the prior art is influenced by the state of the hot slag, and cannot cover the whole steel slag treatment. The core of the wind crushing treatment system is a granulating device, but the design of the current granulating device is still not perfect enough, so that the adaptability of the wind crushing process is insufficient, and the problems of slag bonding and the like exist in the treatment process.
In the prior art, in granted patents or published patents relating to steel slag wind-crushing high-efficiency and granulating devices, a steel slag wind-crushing granulating device with the publication number of CN88211276U and a high-temperature liquid steel slag wind-crushing water-cooling granulating method and device with the publication number of CN101259991B as well as granulated steel slag and application thereof, the two patents both provide a steel slag granulating device design with similar structure, the granulating device is connected with two compressed air inlet pipes at the back side of a granulator body, and the front end of the granulator body is provided with H-shaped distributed nozzles; the difference is that the nozzle diameters of CN88211276U are the same, while the nozzle diameter of CN101259991B is different, and the diameter ratio of the transverse main nozzle diameter to the longitudinal auxiliary nozzle is 1.5. The design of a granulating device related to two patents with publication numbers of CN102690913B steel slag ball production equipment and a water pool cooling system thereof and a method for cooling the steel slag balls is basically the same, a front end nozzle of the granulating device comprises a first layer nozzle, a second layer nozzle and a third layer nozzle, the spraying direction of the first layer nozzle is vertical to a spraying panel, the spraying direction of the second layer nozzle forms an included angle of 80-85 degrees with the spraying panel, the spraying direction of the third layer nozzle forms an included angle of 75-80 degrees with the spraying panel, the distance between every two layers of nozzles is 50mm-150mm, and all the layers of nozzles are horizontally and linearly distributed. CN110156352A, a method for preparing gas quenched metallurgical slag microbeads, discloses a method for preparing gas quenched metallurgical slag microbeads, which comprises remelting and tempering steel slag, and impacting liquid slag by high-speed air jet to form microbeads with uniform granularity, good performance and high volume stability; but does not disclose its granulation apparatus design. A jet structure for treating steel slag and a steel slag treatment device with publication number CN211546582U disclose a granulator which is integrally designed in a groove shape, three containing spaces are sequentially communicated and arranged, the three containing spaces form a semi-closed structure, and the radial sectional areas of the first containing space and the third containing space are both larger than the radial sectional area of the second containing space; the granulation device is provided with a plurality of spray pipes, and the number of the spray pipes in the first accommodating space and the third accommodating space is more than that of the spray pipes in the second accommodating space; and granulating the liquid steel slag by adopting gas-water mixed jet flow. CN216688192U gas quenching device for preparing steel slag grinding material discloses a gas quenching device for preparing steel slag grinding material; the gas quenching steel slag prepared by the gas quenching system is in a single-particle regular spherical shape and has better thermal stability, wear resistance, corrosion resistance and pressure resistance; the gas quenching system comprises a compressor, a pipeline and a Laval nozzle, and the specific design is not disclosed. The related patents do not relate to the technology for improving the slag bonding in the wind crushing process and improving the steel slag treatment efficiency.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a simple structure, at the slag wind garrulous in-process, the gas jet more agrees with the hydrodynamics characteristic that liquid slag flows, can effectively promote sediment grain homogeneity and dispersity, improves the bad condition of wind garrulous process slagging scorification, promotes system operating efficiency to guarantee the stable antegrade processing apparatus who improves slag wind garrulous slagging-off of wind garrulous process.
To solve the technical problems, the invention adopts the technical scheme that:
the invention relates to a treatment device for improving steel slag wind breaking and slagging, which comprises a wind breaking chamber, wherein one side of the wind breaking chamber is communicated with a steel slag chute, one side of the wind breaking chamber, which is provided with the steel slag chute, is simultaneously provided with a granulating component, the granulating component extends into the wind breaking chamber, the lower part of the wind breaking chamber is provided with a water pool, the granulating component is positioned below the steel slag chute, the granulating component comprises a component cavity, a left cavity and a right cavity are formed in the component cavity through a partition plate, the partition plate is provided with a plurality of connecting channels, a rear end panel of the component cavity, which is positioned outside the wind breaking chamber, is communicated with a left air inlet pipe and a right air inlet pipe, a front end panel of the component cavity, which is positioned inside the wind breaking chamber, is provided with a nozzle group, the nozzle group comprises a plurality of nozzles, the plurality of nozzles form a double-layer arc distribution structure, the plurality of nozzles are arranged in structures with different diameters, and the nozzle group arranged from two sides to the middle part is arranged in a structure with the diameter size gradually increased.
The left air inlet pipe is communicated with the left cavity, and the right air inlet pipe is communicated with the right cavity.
The lower part of the wind breaking chamber is of an open structure, and the lower part of the wind breaking chamber is communicated with a water pool.
And an exhaust pipeline is arranged at the upper part of the wind crushing chamber.
The left air inlet pipe and the right air inlet pipe are respectively communicated with high-pressure gas.
The high-pressure gas entering the granulating part is arranged to form a structure of spindle-shaped distributed jet streams when ejected from the nozzles.
The jet streams are distributed in a gradually decreasing distribution from the middle to both sides in the horizontal direction.
When the high-temperature steel slag enters the air crushing chamber from the slag chute, the high-temperature steel slag is arranged into a structure capable of forming a liquid slag stream flowing downwards in the air crushing chamber.
The invention also relates to a treatment method for improving the steel slag wind-crushing slagging, which has simple steps, ensures that the gas jet flow is more accordant with the flowing fluid mechanics characteristic of the liquid steel slag in the steel slag wind-crushing process, can effectively improve the uniformity and the dispersity of slag particles, improves the bad condition of slagging in the wind-crushing process, improves the system operation efficiency and ensures the stable and smooth wind-crushing process.
The treatment method for improving the wind-crushing slagging of the steel slag comprises the following treatment steps:
s1, enabling high-temperature steel slag to enter an air crushing chamber from a steel slag chute to form a downward liquid slag stream;
s2, the nozzles are located on a front panel of the component cavity, the diameters of the nozzles are different, and the nozzles are distributed on the front panel in a double-layer arc shape; high-pressure air enters the left chamber from the left air inlet pipeline and enters the right chamber from the right air inlet pipeline, and the high-pressure air entering the component cavity forms jet airflow when being sprayed out from a plurality of nozzles on the front panel; the jet airflow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine and dispersed slag particles; the layout design of the plurality of nozzles enables high-pressure gas to form spindle-shaped distributed jet streams through the granulating component, and the spindle-shaped distributed jet streams are in a distribution state gradually weakened from the middle to two sides in the horizontal direction;
and S3, treating the slag particles formed by the granulating component, falling into a water tank below the air breaking chamber, cooling to form solid slag particles, and collecting the solid slag particles to finish treatment.
When high-pressure gas enters the component cavity, the left cavity and the right cavity are communicated through the connecting channel on the partition plate so as to keep the pressure balance of the left cavity and the right cavity.
By adopting the technical scheme of the invention, the working principle and the beneficial effects are as follows:
the invention relates to a treatment device for improving the wind breaking and slagging of steel slag, which comprises a steel slag chute (slag flowing groove), an air inlet pipeline, a granulating component, a wind breaking chamber, a water tank and the like. The granulating part comprises two circular air inlet pipes, two communicated chambers and a plurality of nozzles; the two air inlet pipes are positioned at the rear end of the cavity and externally connected with high-pressure gas to ensure that the high-pressure gas reliably enters the cavity of the component, and the two cavities are communicated to keep the pressure in the cavity basically balanced; the nozzles are positioned on the front panel of the chamber and are a plurality of circular pipelines with different diameters, and the nozzles are distributed on the front panel in a multilayer arc shape, so that the gas jet flow sprayed by the nozzles of the granulating part is distributed in a spindle shape and is in a distribution state gradually weakened from the middle to two sides in the horizontal direction; the jet state is more favorable for improving the particle uniformity and dispersion degree of the crushed thermal steel slag and improving the slagging condition in the air crushing process, thereby improving the system operation efficiency and ensuring the stable and smooth operation of the air crushing process. The slag flowing groove is positioned right above the granulating device, and the high-temperature steel slag enters the air crushing chamber from the slag flowing groove; high-pressure air enters a component chamber of the granulating component from an air inlet pipe and is sprayed out from a nozzle of the front panel to form a jet air flow; the jet airflow acts on the high-temperature liquid steel slag to form fine slag drops; the slag drops into a water tank below the air crushing chamber to be cooled to form solid slag particles. The upper part of the air breaking chamber is connected with an exhaust pipeline to exhaust air in the air breaking chamber. When the treatment for improving the wind crushing and slagging of the steel slag is carried out, the high-temperature steel slag enters a wind crushing chamber from a steel slag chute to form a downward liquid slag stream; the nozzles are positioned on the front end panel of the component cavity, the diameters of the nozzles are different, and the nozzles are distributed on the front end panel in a double-layer arc shape; high-pressure air enters the left chamber from the left air inlet pipeline and enters the right chamber from the right air inlet pipeline, and the high-pressure air entering the component cavity forms jet airflow when being sprayed out from a plurality of nozzles on the front panel; the jet airflow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine and dispersed slag particles; the layout design of the plurality of nozzles enables high-pressure gas to form a spindle-shaped distributed jet stream through the granulating part, and the jet stream is in a distribution state gradually weakened from the middle to two sides in the horizontal direction; and the slag particles formed by the treatment of the granulating component fall into a water tank below the air crushing chamber for cooling to form solid slag particles, and then the solid slag particles are collected to finish the treatment. The structure of the invention is more beneficial to improving the operation efficiency of the steel slag wind crushing system and ensuring the stable and smooth wind crushing process. Test verification shows that the scheme of the invention has the following characteristics: 1) The method can improve the stability of the operation process of the air crushing system, reduce adverse effects such as slag bonding and the like, and improve the system efficiency. 2) Based on the granulating device, the generated gas jet is more in accordance with the flowing fluid mechanics characteristic of the liquid steel slag, and the particle uniformity and the dispersion degree of the steel slag after wind crushing can be improved. 3) The granulating component is easy to process and low in manufacturing cost. The processing device for improving the wind breaking and slagging of the steel slag has a simple structure, and in the wind breaking process of the steel slag, the gas jet of the granulating part is more in accordance with the flowing hydromechanical characteristics of the liquid steel slag, so that the uniformity and the dispersity of slag particles can be effectively improved, the bad slagging condition in the wind breaking process can be improved, the operation efficiency of a system can be improved, the stable and smooth wind breaking process can be ensured, and the performance can be improved.
Drawings
The contents of the specification, as well as the references used in the drawings, will now be briefly described as follows:
FIG. 1 is a schematic side view of the processing apparatus for improving the slag bonding of the steel slag by wind crushing according to the present invention;
FIG. 2 is a schematic top view of a granulating component of the treatment device for improving the wind-crushing and slagging of steel slag according to the present invention;
FIG. 3 is a schematic front view of a front panel of a granulating member of the treatment device for improving the windbreak and slagging of steel slag according to the present invention;
in the drawings, the reference numbers are respectively: 1. a steel slag chute; 2. a granulating component; 3. (ii) a 4. A wind breaking chamber; 5. a pool; 6. a left air inlet pipe; 7. a right air inlet pipe; 8. a left chamber; 9. a right chamber; 10. a connecting channel; 11. a nozzle group; 12. a front panel; 13. a nozzle; 14. a component cavity; 15. a separator plate; 16. a rear panel.
Detailed Description
The following description of the embodiments of the present invention, with reference to the accompanying drawings, will be made in further detail, such as the shapes and structures of the various components, the mutual positions and connection relationships among the various parts, the functions and operating principles of the various parts, etc., with reference to the following description of the embodiments:
as shown in fig. 1-fig. 3, the invention relates to a processing device for improving steel slag wind breaking and slagging, which comprises a wind breaking chamber 4, wherein one side of the wind breaking chamber 4 is communicated with a steel slag chute 1, one side of the wind breaking chamber 4, which is provided with the steel slag chute 1, is simultaneously provided with a granulating component 2, the granulating component 2 extends into the wind breaking chamber 4, the lower part of the wind breaking chamber 4 is provided with a water tank 5, the granulating component 2 is positioned below the steel slag chute 1, the granulating component 2 comprises a component cavity 14, a left cavity 8 and a right cavity 9 are formed in the component cavity 14 through a partition plate 15, the partition plate 15 is provided with a plurality of connecting channels 10, a rear end plate 16 of the component cavity 14, which is positioned outside the wind breaking chamber 4, is communicated with a left air inlet pipe 6 and a right air inlet pipe 7, a front end plate 12 of the component cavity 14, which is positioned inside the wind breaking chamber 4, is provided with a nozzle group 11, the nozzle group 11 comprises a plurality of nozzles 13, the nozzles 13 form a double-layer arc distribution structure, the plurality of nozzles 13 are arranged in a diameter structure, and the nozzles 13 arranged from two sides to the middle part are arranged in a gradually increased diameter size. The structure provides an improved technical scheme aiming at the defects in the prior art. The treatment device for improving the wind crushing and slagging of the steel slag comprises a steel slag chute (slag flowing groove), an air inlet pipeline, a granulating component, a wind crushing chamber, a water pool and the like. The granulating part comprises two circular air inlet pipes, two communicated chambers and a plurality of nozzles; the two air inlet pipes are positioned at the rear end of the cavity and externally connected with high-pressure gas to ensure that the high-pressure gas reliably enters the cavity of the component, and the two cavities are communicated to keep the pressure in the cavity basically balanced; the nozzles are positioned on the front panel of the chamber and are a plurality of circular pipelines with different diameters, and the nozzles are distributed on the front panel in a multilayer arc shape, so that the gas jet flow sprayed by the nozzles of the granulating part is distributed in a spindle shape and is in a distribution state gradually weakened from the middle to two sides in the horizontal direction; the jet state is more favorable for improving the particle uniformity and the dispersion degree of the crushed thermal steel slag and improving the slag bonding condition in the air crushing process, thereby improving the system operation efficiency and ensuring the stable and smooth operation of the air crushing process. The slag flowing groove is positioned right above the granulating device, and the high-temperature steel slag enters the air crushing chamber from the slag flowing groove; high-pressure air enters a component chamber of the granulating component through an air inlet pipe and is sprayed out from a nozzle of the front panel to form a jet air flow; the jet airflow acts on the high-temperature liquid steel slag to form fine slag drops; the slag drops into a water pool below the air breaking chamber to be cooled to form solid slag particles. The upper part of the air breaking chamber is connected with an exhaust pipeline to exhaust air in the air breaking chamber. When the treatment for improving the wind crushing and slagging of the steel slag is carried out, the high-temperature steel slag enters the wind crushing chamber 4 from the steel slag chute 1 to form a downward liquid slag stream; the nozzles 13 are positioned on the front panel 12 of the component cavity 14, the diameters of the nozzles 13 are different, and the nozzles 13 are distributed on the front panel 12 in a double-layer arc shape; high-pressure air enters a left chamber 8 from a left air inlet pipeline 6, enters a right chamber 9 from a right air inlet pipeline 7, and forms jet air flow when the high-pressure air entering a component cavity 14 is sprayed out from a plurality of nozzles 13 on a front panel 12; the jet airflow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine and dispersed slag particles; the arrangement of the plurality of nozzles 13 is designed to allow high-pressure gas to pass through the granulating part to form spindle-shaped distributed jet streams and to present a distribution state gradually weakened from the middle to both sides in the horizontal direction; the slag particles formed by the treatment of the granulating component fall into a water pool 5 below the air crushing chamber 4 for cooling to form solid slag particles, and then the solid slag particles are collected to finish the treatment. The structure of the invention is more beneficial to improving the operation efficiency of the steel slag wind crushing system and ensuring the stable and smooth wind crushing process. Test verification shows that the scheme of the invention has the following characteristics: 1) The method can improve the stability of the operation process of the air crushing system, reduce adverse effects such as slag bonding and the like, and improve the system efficiency. 2) Based on the granulating device provided by the invention, the generated gas jet flow is more in accordance with the flowing fluid mechanics characteristics of the liquid steel slag, and the particle uniformity and the dispersion degree of the steel slag after wind crushing can be improved. 3) The granulating part is easy to process and low in manufacturing cost. The processing device for improving the wind breaking and slagging of the steel slag has a simple structure, and in the wind breaking process of the steel slag, the gas jet of the granulating part is more in accordance with the flowing hydromechanical characteristics of the liquid steel slag, so that the uniformity and the dispersity of slag particles can be effectively improved, the bad slagging condition in the wind breaking process can be improved, the operation efficiency of a system can be improved, and the stable and smooth running of the wind breaking process can be ensured.
The left air inlet pipe 6 is communicated with the left cavity 8, and the right air inlet pipe 7 is communicated with the right cavity 9. And the left air inlet pipe 6 and the right air inlet pipe 7 are respectively communicated with high-pressure gas. Above-mentioned structure, left cavity admits air through left intake pipe, and right cavity admits air through right intake pipe, ensures that high-pressure gas reliably gets into the part cavity, and two cavities realize the UNICOM to keep the cavity internal pressure balanced basically. The gas entering the chamber from the gas inlet pipe is limited jet flow, the jet flow stroke is short, and the jet flow coverage area is limited; the gas flow characteristics inside and outside the jet flow boundary are greatly different, and the design of double chambers and double jet flow is adopted to increase the area of the front panel inside the chamber covered by the jet flow and reduce the difference of gas flow; the dual chamber design also facilitates increased symmetry of gas flow within the chamber, thereby increasing symmetry of the outlet jet. The nozzle diameter on the front panel is gradually reduced from the center to both sides, and the distribution state of the stream intensity gradually reduced from the middle to both sides is controlled.
The lower part of the air crushing chamber 4 is of an opening structure, and the lower part of the air crushing chamber 4 is communicated with a water pool 5. According to the structure, the high-temperature steel slag is treated by the granulating component in the falling process, formed slag particles fall into the water pool 5 below the air crushing chamber 4 for cooling, solid slag particles are formed, and then the solid slag particles are collected to finish the treatment.
The upper part of the wind crushing chamber 4 is provided with an exhaust pipeline 3.
The high-pressure gas entering the granulating part 2 is arranged in a structure forming a spindle-shaped distributed jet stream when it is ejected from the nozzles 13. The jet streams are distributed in a gradually decreasing distribution from the middle to both sides in the horizontal direction. When the high-temperature steel slag enters the air crushing chamber 4 from the slag groove chute 1, the high-temperature steel slag is arranged into a structure capable of forming a liquid slag stream flowing downwards in the air crushing chamber 4. In the structure, high-pressure air enters the left chamber 8 from the left air inlet pipeline 6, enters the right chamber 9 from the right air inlet pipeline 7, and forms jet airflow when the high-pressure air entering the component cavity 14 is sprayed out from the plurality of nozzles 13 on the front panel 12; the jet airflow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine and dispersed slag particles; the arrangement of the plurality of nozzles 13 is designed to allow high-pressure gas to pass through the granulating part to form spindle-shaped distributed jet streams and to present a distribution state gradually weakened from the middle to both sides in the horizontal direction; effectively improve the uniformity and the dispersion degree of the particles of the steel slag after wind crushing.
The invention also relates to a treatment method for improving the steel slag wind-crushing slagging, which has simple steps, ensures that the gas jet flow is more accordant with the flowing fluid mechanics characteristic of the liquid steel slag in the steel slag wind-crushing process, can effectively improve the uniformity and the dispersity of slag particles, improves the bad condition of slagging in the wind-crushing process, improves the system operation efficiency and ensures the stable and smooth wind-crushing process.
The treatment method for improving the wind crushing and slagging of the steel slag comprises the following treatment steps:
s1, enabling high-temperature steel slag to enter an air crushing chamber 4 from a steel slag chute 1 to form a downward liquid slag stream; s2, the nozzles 13 are positioned on the front end panel 12 of the component cavity 14, the diameters of the nozzles 13 are different, and the nozzles 13 are distributed on the front end panel 12 in a double-layer arc shape; high-pressure air enters a left chamber 8 from a left air inlet pipeline 6, enters a right chamber 9 from a right air inlet pipeline 7, and forms jet airflow when the high-pressure air entering a component cavity 14 is sprayed out from a plurality of nozzles 13 on a front panel 12; the jet airflow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine and dispersed slag particles; the arrangement of the plurality of nozzles 13 is designed to allow high-pressure gas to pass through the granulating part to form spindle-shaped distributed jet streams and to present a distribution state gradually weakened from the middle to both sides in the horizontal direction; and S3, forming slag particles through the treatment of the granulating part, falling into a water pool 5 below the air crushing chamber 4 for cooling to form solid slag particles, and then collecting the solid slag particles to finish the air crushing treatment of the steel slag.
When high-pressure gas enters the component cavity 14, the left chamber 8 and the right chamber 9 are communicated through the connecting channel 10 on the partition plate 15, so that the pressure balance of the left chamber 8 and the right chamber 9 is maintained. In the step, high-pressure gas enters the two chambers respectively, and the gas enters at high pressure and high speed.
The invention relates to a treatment device for improving the wind crushing and slagging of steel slag, which comprises a steel slag chute (slag flowing groove), an air inlet pipeline, a granulating component, a wind crushing chamber, a water tank and the like. The granulating part comprises two circular air inlet pipes, two communicated chambers and a plurality of nozzles; the two air inlet pipes are positioned at the rear end of the cavity and externally connected with high-pressure gas to ensure that the high-pressure gas reliably enters the cavity of the component, and the two cavities are communicated to keep the pressure in the cavity basically balanced; the nozzles are positioned on the front panel of the chamber and are a plurality of circular pipelines with different diameters, and the nozzles are distributed on the front panel in a multilayer arc shape, so that the gas jet flow sprayed by the nozzles of the granulating part is distributed in a spindle shape and is in a distribution state gradually weakened from the middle to two sides in the horizontal direction; the jet state is more favorable for improving the particle uniformity and the dispersion degree of the crushed thermal steel slag and improving the slag bonding condition in the air crushing process, thereby improving the system operation efficiency and ensuring the stable and smooth operation of the air crushing process. The slag flowing groove is positioned right above the granulating device, and the high-temperature steel slag enters the air crushing chamber from the slag flowing groove; high-pressure air enters a component chamber of the granulating component from an air inlet pipe and is sprayed out from a nozzle of the front panel to form a jet air flow; the jet airflow acts on the high-temperature liquid steel slag to form fine slag drops; the slag drops into a water tank below the air crushing chamber to be cooled to form solid slag particles. The upper part of the air breaking chamber is connected with an exhaust pipeline to exhaust air in the air breaking chamber. When the treatment for improving the wind breaking and slagging of the steel slag is carried out, the high-temperature steel slag enters a wind breaking chamber from a steel slag chute to form a downward liquid slag stream; the nozzles are positioned on the front end panel of the component cavity, the diameters of the nozzles are different, and the nozzles are distributed on the front end panel in a double-layer arc shape; high-pressure air enters the left chamber from the left air inlet pipeline and enters the right chamber from the right air inlet pipeline, and the high-pressure air entering the component cavity forms jet airflow when being sprayed out from a plurality of nozzles on the front panel; the jet airflow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine and dispersed slag particles; the layout design of the plurality of nozzles enables high-pressure gas to form spindle-shaped distributed jet streams through the granulating component, and the spindle-shaped distributed jet streams are in a distribution state gradually weakened from the middle to two sides in the horizontal direction; and (4) slag particles formed by the treatment of the granulating component fall into a water tank below the air crushing chamber for cooling to form solid slag particles, and then the solid slag particles are collected to finish the treatment. The structure of the invention is more beneficial to improving the operation efficiency of the steel slag wind crushing system and ensuring the stable and smooth wind crushing process. Test verification shows that the scheme of the invention has the following characteristics: 1) The method can improve the stability of the operation process of the air crushing system, reduce adverse effects such as slag bonding and the like, and improve the system efficiency. 2) Based on the granulating device, the generated gas jet is more in accordance with the flowing fluid mechanics characteristic of the liquid steel slag, and the particle uniformity and the dispersion degree of the steel slag after wind crushing can be improved. 3) The granulating component is easy to process and low in manufacturing cost. According to the treatment device and the treatment method for improving the steel slag wind breaking and slagging, in the steel slag wind breaking process, the gas jet of the granulating part is more in accordance with the flowing hydromechanical characteristics of the liquid steel slag, so that the uniformity and the dispersity of slag particles can be effectively improved, the bad slagging condition in the wind breaking process can be improved, the system operation efficiency can be improved, the stable and smooth wind breaking process can be ensured, and the performance can be improved.
The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the invention, and its application to other applications without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an improve processing apparatus of steel slag wind-breaking slagging scorification which characterized in that: including garrulous room of wind (4), garrulous room of wind (4) one side intercommunication steel slag chute (1), garrulous room of wind (4) set up one side of steel slag chute (1) and set up pelletization part (2) simultaneously, pelletization part (2) extend to garrulous room of wind (4) inside, garrulous room of wind (4) lower part sets up pond (5), pelletization part (2) are located steel slag chute (1) below position, pelletization part (2) are including part cavity (14), form left cavity (8) and right cavity (9) through division board (15) in part cavity (14), set up a plurality of connected channels (10) on division board (15), part cavity (14) are located the outside rear end panel (16) of garrulous room of wind (4) intercommunication left intake pipe (6) and right intake pipe (7), front end panel (12) that part cavity (14) are located garrulous room of wind (4) inside set up nozzle group (11), nozzle group (11) include a plurality of nozzles (13), a plurality of nozzles (13) form arc distribution structure, a plurality of nozzle group (13) set up to the diameter of diameter group (13) and set up to the diameter of the unequal nozzle group's of middle part (13) and increase from the structure's both sides of spraying nozzle group (13) arrangement.
2. The processing device for improving the wind crushing and slagging of the steel slag according to claim 1, characterized in that: the left air inlet pipe (6) is communicated with the left cavity (8), and the right air inlet pipe (7) is communicated with the right cavity (9).
3. The processing device for improving the wind crushing and slagging of the steel slag according to claim 1 or 2, characterized in that: the lower part of the air crushing chamber (4) is of an opening structure, and the lower part of the air crushing chamber (4) is communicated with a water pool (5).
4. The processing apparatus for improving the wind crushing and slagging of steel slag according to claim 3, wherein: an exhaust pipeline (3) is arranged at the upper part of the air crushing chamber (4).
5. The processing device for improving the wind crushing and slagging of the steel slag according to claim 4, characterized in that: the left air inlet pipe (6) and the right air inlet pipe (7) are respectively communicated with high-pressure gas.
6. The processing device for improving the wind crushing and slagging of the steel slag according to claim 1 or 2, characterized in that: the high-pressure gas entering the granulating part (2) is arranged to form a structure of spindle-shaped distributed jet streams when being ejected from the nozzles (13).
7. The processing apparatus for improving the wind crushing and slagging of steel slag according to claim 6, wherein: the jet stream is distributed in a gradually decreasing distribution from the middle to both sides in the horizontal direction.
8. The processing device for improving the wind crushing and slagging of the steel slag according to claim 7, characterized in that: when the high-temperature steel slag enters the air crushing chamber (4) from the slag chute (1), the high-temperature steel slag is arranged into a structure capable of forming a liquid slag stream flowing downwards in the air crushing chamber (4).
9. A treatment method for improving the wind breaking and slagging of steel slag is characterized by comprising the following steps: the treatment method for improving the wind-crushing slagging of the steel slag comprises the following treatment steps:
s1, enabling high-temperature steel slag to enter an air crushing chamber (4) from a steel slag chute (1) to form a downward liquid slag stream;
s2, the nozzles (13) are positioned on a front end panel (12) of the component cavity (14), the diameters of the nozzles (13) are different, and the nozzles (13) are distributed on the front end panel (12) in a double-layer arc shape; high-pressure air enters a left chamber (8) from a left air inlet pipeline (6), enters a right chamber (9) from a right air inlet pipeline (7), and forms jet airflow when the high-pressure air entering a component cavity (14) is sprayed out from a plurality of nozzles (13) on a front panel (12); the jet airflow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine and dispersed slag particles; the arrangement of the plurality of nozzles (13) is designed to allow high-pressure gas to form a spindle-shaped distributed jet stream through the granulating part and to present a distribution state gradually weakened from the middle to two sides in the horizontal direction;
and S3, the slag particles formed by the treatment of the granulating component fall into a water pool (5) below the air crushing chamber (4) for cooling to form solid slag particles, and then the solid slag particles are collected to finish the treatment.
10. The processing method for improving the wind crushing and slagging of the steel slag according to claim 9, characterized in that: when high-pressure gas enters the component cavity (14), the left chamber (8) and the right chamber (9) are communicated through the connecting channel (10) on the partition plate (15) so as to keep the pressure balance of the left chamber (8) and the right chamber (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211176300.6A CN115418420B (en) | 2022-09-26 | 2022-09-26 | Treatment device and treatment method for improving wind-break slagging of steel slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211176300.6A CN115418420B (en) | 2022-09-26 | 2022-09-26 | Treatment device and treatment method for improving wind-break slagging of steel slag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115418420A true CN115418420A (en) | 2022-12-02 |
| CN115418420B CN115418420B (en) | 2023-07-25 |
Family
ID=84205311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211176300.6A Active CN115418420B (en) | 2022-09-26 | 2022-09-26 | Treatment device and treatment method for improving wind-break slagging of steel slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115418420B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103667A (en) * | 1993-12-11 | 1995-06-14 | 成都钢铁厂 | Air breaking and pelletizing technology and apparatus for slag |
| JP2004238276A (en) * | 2003-01-17 | 2004-08-26 | Jfe Material Co Ltd | Method for producing high carbon ferrochrome air granulated slag and grinding material |
| CN101259991A (en) * | 2008-05-09 | 2008-09-10 | 马鞍山钢铁股份有限公司 | Wind-crushing water-cooling granulating method and device for high-temperature liquid-state steel slag, granulating steel slag and use thereof |
| CN201400690Y (en) * | 2009-04-09 | 2010-02-10 | 河北理工大学 | Supersonic gas nozzle for granulating liquid molten slags |
| CN202322873U (en) * | 2011-11-25 | 2012-07-11 | 河南科技大学 | Steel slag ball production equipment and granulating system thereof |
| CN102690907A (en) * | 2011-11-25 | 2012-09-26 | 河南科技大学 | Steel slag ball production equipment and granulating system thereof |
| CN102808050A (en) * | 2012-09-06 | 2012-12-05 | 马钢(集团)控股有限公司 | Steel slag wind-crushing and hydro-cooling treating device and method for treating steel slag |
| CN202849449U (en) * | 2012-08-28 | 2013-04-03 | 无锡市东方环境工程设计研究所有限公司 | Composite granulator for smashing molten steel and iron slag |
| JP2015189600A (en) * | 2014-03-27 | 2015-11-02 | Ｊｆｅスチール株式会社 | Air granulated slag production device, method for producing air granulated slag, and air granulated slag |
| CN207608566U (en) * | 2017-11-28 | 2018-07-13 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of blast furnace cinder water quenching granulating device |
| CN108660269A (en) * | 2018-07-17 | 2018-10-16 | 中能立化科技有限公司 | A kind of jet stream granulation spray gun and slag granulating heat-exchanger rig |
-
2022
- 2022-09-26 CN CN202211176300.6A patent/CN115418420B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103667A (en) * | 1993-12-11 | 1995-06-14 | 成都钢铁厂 | Air breaking and pelletizing technology and apparatus for slag |
| JP2004238276A (en) * | 2003-01-17 | 2004-08-26 | Jfe Material Co Ltd | Method for producing high carbon ferrochrome air granulated slag and grinding material |
| CN101259991A (en) * | 2008-05-09 | 2008-09-10 | 马鞍山钢铁股份有限公司 | Wind-crushing water-cooling granulating method and device for high-temperature liquid-state steel slag, granulating steel slag and use thereof |
| CN201400690Y (en) * | 2009-04-09 | 2010-02-10 | 河北理工大学 | Supersonic gas nozzle for granulating liquid molten slags |
| CN202322873U (en) * | 2011-11-25 | 2012-07-11 | 河南科技大学 | Steel slag ball production equipment and granulating system thereof |
| CN102690907A (en) * | 2011-11-25 | 2012-09-26 | 河南科技大学 | Steel slag ball production equipment and granulating system thereof |
| CN202849449U (en) * | 2012-08-28 | 2013-04-03 | 无锡市东方环境工程设计研究所有限公司 | Composite granulator for smashing molten steel and iron slag |
| CN102808050A (en) * | 2012-09-06 | 2012-12-05 | 马钢(集团)控股有限公司 | Steel slag wind-crushing and hydro-cooling treating device and method for treating steel slag |
| JP2015189600A (en) * | 2014-03-27 | 2015-11-02 | Ｊｆｅスチール株式会社 | Air granulated slag production device, method for producing air granulated slag, and air granulated slag |
| CN207608566U (en) * | 2017-11-28 | 2018-07-13 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of blast furnace cinder water quenching granulating device |
| CN108660269A (en) * | 2018-07-17 | 2018-10-16 | 中能立化科技有限公司 | A kind of jet stream granulation spray gun and slag granulating heat-exchanger rig |
Non-Patent Citations (1)
| Title |
|---|
| 李永治，李文祥: "钢渣风碎技术研究", 炼钢, no. 05, pages 40 - 44 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115418420B (en) | 2023-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106513692B (en) | A kind of atomizer and method for being used to produce powder | |
| CN104561496B (en) | Spray cooling experiment device for thermal treatment of steel rail | |
| CN111468319B (en) | Multi-jet-hole gas-liquid two-phase atomizing nozzle | |
| CN105195754A (en) | Device and method for improving atomized metal powder cooling efficiency | |
| CN1861263A (en) | Powder wall-breaking machine | |
| CN112375859A (en) | Blast furnace quenching slag steam whitening system and method | |
| CN202844789U (en) | Pulse back-blowing ash removal device of filter | |
| CN113458401A (en) | Preparation method of iron-nickel-molybdenum soft magnetic powder | |
| CN106948909A (en) | A kind of porous extruding swirl injection valve | |
| CN115418420A (en) | Treatment device and treatment method for improving wind breaking and slagging of steel slag | |
| US20100107939A1 (en) | Treatment method for high-temperature exhaust gas | |
| CN201634691U (en) | Melting steel slag particle atomization water-cooling device | |
| CN110802443A (en) | Cutting gas-oil-liquid three-phase atomizing nozzle device based on low-temperature micro-lubrication | |
| CN112413580B (en) | Heavy oil burner using bubble atomizing nozzle and operation method thereof | |
| CN107322001A (en) | A kind of 3D printing metal dust and its preparation facilities and method | |
| CN216605671U (en) | Turbulent atomizing nozzle of perforated plate | |
| CN206898395U (en) | A kind of water-gas combined powder by atomization device | |
| CN105219446B (en) | Comprehensive water/gas mixed Quench injection apparatus | |
| CN214168014U (en) | Blast furnace quenching slag steam white-removing system | |
| CN110195133B (en) | Converter slag treatment system and treatment method | |
| CN107973523A (en) | A kind of special glass processing production equipment | |
| CN114040638A (en) | Universal heat-dissipation efficient air filtering system for equipment cabinet and equipment cabinet environment management method | |
| RU2268949C1 (en) | Device for conditioning process gases of steelmaking process | |
| CN207004666U (en) | Eliminate the engine cylinder-body water channel at cooling dead angle | |
| CN117844996A (en) | Device and method for granulating blast furnace slag by combining gas with water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |