CN115418420B - Treatment device and treatment method for improving wind-break slagging of steel slag - Google Patents
Treatment device and treatment method for improving wind-break slagging of steel slag Download PDFInfo
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- CN115418420B CN115418420B CN202211176300.6A CN202211176300A CN115418420B CN 115418420 B CN115418420 B CN 115418420B CN 202211176300 A CN202211176300 A CN 202211176300A CN 115418420 B CN115418420 B CN 115418420B
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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
Abstract
The invention belongs to a treatment device for improving wind-break slagging of steel slag in the technical field of steelmaking, and also relates to a treatment method for improving wind-break slagging of steel slag. The invention discloses a treatment device and a treatment method for improving slag and slag formation, which are characterized in that a granulating component (2) is arranged on one side of a slag chute (1) arranged in a wind crushing chamber (4), the granulating component (2) extends into the wind crushing chamber (4), a water tank (5) is arranged at the lower part of the wind crushing 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 crushing chamber (4), the nozzle group (11) comprises a plurality of nozzles (13), and the nozzles (13) form a double-layer arc-shaped distribution structure.
Description
Technical Field
The invention belongs to the technical field of steelmaking, and particularly relates to a treatment device for improving wind-break slagging of steel slag.
Background
The wind crushing treatment process of the steel slag is a treatment process for crushing the hot steel slag into tiny particles by utilizing high-pressure high-speed gas and cooling and recycling, and has the characteristics of economy, high efficiency and environment friendliness; however, the current technology is affected 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 existing granulating device is still not perfect, so that the wind crushing process has insufficient adaptability, and the problems of slag bonding and the like exist in the treatment process.
In the prior art, in the issued patent or the published patent relating to the wind-crushing and high-efficiency granulating device of the steel slag, the publication number is CN88211276U of the wind-crushing granulating device of the steel slag and the publication number is CN101259991B of the wind-crushing and water-cooling granulating method and device of the high-temperature liquid steel slag and the granulating steel slag and application of the high-temperature liquid steel slag, both patents provide a design of the granulating device of the steel slag with similar structure, the granulating device is connected with two compressed air inlet pipes at the rear side of a granulator body, and the front end of the body is provided with H-shaped distributed nozzles; the difference is that the nozzle diameters of CN88211276U are all the same, while the nozzle diameter of CN101259991B is different, the ratio of the transverse primary nozzle diameter to the longitudinal secondary nozzle diameter is 1.5. The design of granulating devices related to two patents of CN102690913B steel slag ball production equipment, a pool cooling system of the steel slag ball production equipment and a method for cooling the steel slag ball, and CN102690907B steel slag ball production equipment is basically the same, the front end nozzles of the granulating devices comprise a first layer of nozzles, a second layer of nozzles and three layers of nozzles, the spraying direction of the first layer of nozzles is vertical to a spraying panel, the spraying direction of the second layer of nozzles forms an included angle of 80-85 degrees with the spraying panel, the spraying direction of the third layer of nozzles forms an included angle of 75-80 degrees with the spraying panel, the distance between every two layers of nozzles is 50-150 mm, and the nozzles of each layer of nozzles are horizontally and linearly distributed. The publication No. CN110156352A (a preparation method of gas quenching metallurgical slag microbeads) discloses a preparation method of gas quenching metallurgical slag microbeads, and the liquid slag is impacted by remelting quenched and tempered steel slag and adopting high-speed air jet to form microbeads with uniform granularity, good performance and high volume stability; but its granulating device design is not disclosed. The utility model discloses a granulating device with a groove-shaped design for the whole, which is disclosed in a spray structure for steel slag treatment and a steel slag treatment device with the publication number of CN211546582U, wherein three accommodating spaces are sequentially communicated and arranged, the three accommodating spaces form a semi-closed structure, and the radial sectional areas of the first accommodating space and the third accommodating space are larger than the radial sectional area of the second accommodating space; the granulating 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. The publication No. CN216688192U discloses a gas quenching device for preparing steel slag abrasive; the gas quenching steel slag prepared by the gas quenching system is in a single-particle regular sphere shape, and has good thermal stability, wear resistance, corrosion resistance and compression resistance; the gas quenching system comprises a compressor, a pipeline and a Laval nozzle, and the specific design is not disclosed. None of the above related patents relates to a technique for improving slag formation in the wind crushing process and improving the treatment efficiency of steel slag.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the treatment device for improving the slag wind-break slagging of the steel slag has a simple structure, and in the slag wind-break process, gas jet flow is more matched with the hydrodynamic characteristics of the flowing liquid steel slag, so that the uniformity and the dispersity of slag particles can be effectively improved, the poor slag-break condition in the wind-break process is improved, the running efficiency of a system is improved, and the stable and smooth running of the wind-break process of the steel slag is ensured.
The technical scheme adopted by the invention is as follows:
the invention relates to a treatment device for improving wind crushing and slagging of steel slag, which comprises a wind crushing chamber, wherein one side of the wind crushing chamber is communicated with a steel slag chute, one side of the wind crushing chamber, provided with the steel slag chute, is provided with granulating components at the same time, the granulating components extend into the wind crushing chamber, the lower part of the wind crushing chamber is provided with a water pool, the granulating components are positioned below the steel slag chute, the granulating components comprise component cavities, a left cavity and a right cavity are formed in the component cavities through a partition plate, a plurality of connecting channels are arranged on the partition plate, a rear end panel of the component cavities positioned outside the wind crushing chamber is communicated with a left air inlet pipe and a right air inlet pipe, a front end panel of the component cavities positioned inside the wind crushing chamber is provided with a nozzle group, the nozzle group comprises a plurality of nozzles, the nozzles form a double-layer arc-shaped distribution structure, the nozzles are of unequal diameters, and the nozzles arranged from two sides to the middle part are of the nozzle group is of a structure with gradually increased diameter.
The left air inlet pipe is communicated with the left chamber, and the right air inlet pipe is communicated with the right chamber.
The lower part of the wind crushing chamber is of an opening structure, and the lower part of the wind crushing chamber is communicated with a water pool.
The upper part of the wind crushing chamber is provided with an exhaust pipeline.
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 member is arranged in such a manner that it forms a spindle-shaped distribution of jet streams when being ejected from the nozzles.
The jet flow is distributed in a horizontal direction in a gradually weakened state from the middle to the two sides.
When the high-temperature steel slag enters the wind crushing chamber from the steel slag chute, the high-temperature steel slag is arranged to be capable of forming a downward flowing liquid slag flow in the wind crushing chamber.
The invention also relates to a treatment method for improving the slag wind-break slagging of the steel slag, which has simple steps, ensures that gas jet flow is more suitable for the hydrodynamic characteristics of the flowing liquid steel slag in the slag wind-break process, can effectively improve the uniformity and the dispersity of slag particles, improves the poor slag-break condition in the wind-break process, improves the operation efficiency of a system, and ensures the stable and smooth running of the wind-break process.
The treatment method for improving the wind-break slagging of the steel slag comprises the following treatment steps:
s1, high-temperature steel slag enters a wind crushing chamber from a steel slag chute to form a downward liquid slag stream;
s2, 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 in a double-layer arc shape on the front end panel; high-pressure air enters the left cavity from the left air inlet pipe, enters the right cavity from the right air inlet pipe, and forms jet air flow when the high-pressure air entering the component cavity is ejected from a plurality of nozzles on the front end panel; jet air flow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine dispersed slag particles; the layout design of the plurality of nozzles enables the high-pressure gas to pass through the granulating component to form spindle-shaped distributed jet flow, and the jet flow is in a gradually weakened distribution state from the middle to the two sides in the horizontal direction;
s3, forming slag particles through treatment of the granulating component, cooling the slag particles in a water pool below the wind crushing chamber, forming solid slag particles, and collecting the solid slag particles to finish the treatment.
When high-pressure gas enters the component cavity, the left cavity and the right cavity are communicated through the connecting channel on the isolation plate, so that the pressure balance of the left cavity and the right cavity is kept.
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 wind-break slagging of steel slag, which comprises a steel slag chute (slag flowing groove), an air inlet pipe, a granulating part, a wind-break chamber, a water tank and the like. The granulating component 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 chamber and externally connected with high-pressure gas, so that the high-pressure gas can reliably enter the component chamber, and the two chambers are communicated to keep the pressure in the chamber basically balanced; the nozzles are arranged on the front end panel of the cavity, the nozzles are a plurality of circular pipelines with different diameters, the nozzles are distributed in a multi-layer arc shape on the front end panel, and the layout design can enable gas jet flow sprayed out of the nozzles of the granulating component to be in spindle-shaped distribution and to be in a gradually weakened distribution state from the middle to two sides in the horizontal direction; the jet flow state is more beneficial to improving the uniformity and the dispersity of particles after the thermal steel slag is crushed, and improving the slag bonding condition in the wind crushing process, thereby improving the operation efficiency of the system and ensuring the stable and smooth running of the wind crushing process. The slag flowing groove is positioned right above the granulating device, and the high-temperature steel slag enters the wind crushing chamber from the slag flowing groove; high-pressure air enters the component chamber of the granulating component through the air inlet pipe and is sprayed out from the nozzle of the front panel to form jet air flow; jet air flow acts on the high-temperature liquid steel slag to form fine slag drops; the slag drops into a water pool below the wind crushing chamber to be cooled to form solid slag particles. The upper part of the wind crushing chamber is connected with an exhaust pipeline to exhaust the gas in the wind crushing 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 flow; 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 in a double-layer arc shape on the front end panel; high-pressure air enters the left cavity from the left air inlet pipe, enters the right cavity from the right air inlet pipe, and forms jet air flow when the high-pressure air entering the component cavity is ejected from a plurality of nozzles on the front end panel; jet air flow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine dispersed slag particles; the layout design of the plurality of nozzles enables the high-pressure gas to pass through the granulating component to form spindle-shaped distributed jet flow, and the jet flow is in a gradually weakened distribution state from the middle to the two sides in the horizontal direction; the slag particles formed by the treatment of the granulating component fall into a water pool below the wind crushing chamber to be cooled, solid slag particles are formed, 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 running of the wind crushing process. The experimental verification shows that the scheme of the invention has the following characteristics: 1) The method can improve the stability of the running process of the wind crushing system, reduce adverse effects such as slag formation and the like, and improve the system efficiency. 2) Based on the granulating device, the generated gas jet flow is more suitable for the hydrodynamic characteristics of the flowing liquid steel slag, and the uniformity and the dispersity of the particles after the steel slag is crushed can be improved. 3) The granulating component is easy to process and low in manufacturing cost. The treatment device for improving the slag wind crushing and slagging of the steel slag has a simple structure, and in the process of wind crushing of the steel slag, the gas jet flow of the granulating component is more matched with the hydrodynamic characteristics of the flowing liquid steel slag, so that the uniformity and the dispersity of slag particles can be effectively improved, the poor slag forming condition in the process of wind crushing is improved, the running efficiency of a system is improved, the stable and smooth running of the wind crushing process is ensured, and the performance is improved.
Drawings
The following is a brief description of what is expressed in the drawings of this specification and the references in the drawings:
FIG. 1 is a schematic side view of a treatment device for improving wind break and slag formation of steel slag according to the present invention;
FIG. 2 is a schematic top view of granulating components of the treatment device for improving wind-break slagging of steel slag according to the invention;
FIG. 3 is a schematic front view of the front panel of the granulating unit of the treatment apparatus for improving wind-break slagging of steel slag according to the present invention;
the reference numerals in the figures are respectively: 1. a steel slag chute; 2. granulating the component; 3. an exhaust duct; 4. a wind crushing 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 connection channel; 11. a nozzle group; 12. a front end panel; 13. a nozzle; 14. a component cavity; 15. a partition plate; 16. and a rear end panel.
Detailed Description
The following describes the shape, structure, mutual position and connection relation between parts, action of parts and working principle of the specific embodiment of the present invention by describing examples in further detail:
as shown in fig. 1-3, the invention relates to a treatment device for improving slag wind crushing and slagging, which comprises a wind crushing chamber 4, wherein one side of the wind crushing chamber 4 is communicated with a slag chute 1, one side of the wind crushing chamber 4, provided with the slag chute 1, is simultaneously provided with a granulating component 2, the granulating component 2 extends into the wind crushing chamber 4, the lower part of the wind crushing chamber 4 is provided with a water pool 5, the granulating component 2 is positioned below the slag chute 1, the granulating component 2 comprises a component cavity 14, the component cavity 14 is internally provided with a left cavity 8 and a right cavity 9 through a separation plate 15, the separation plate 15 is provided with a plurality of connecting channels 10, a rear end panel 16 of the component cavity 14, positioned outside the wind crushing chamber 4, is communicated with a left air inlet pipe 6 and a right air inlet pipe 7, a front end panel 12 of the component cavity 14, positioned inside the wind crushing 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 nozzles 13 are arranged in the structure with different diameters, and the nozzle group 11 is arranged from two sides to the middle part is in a structure with gradually increased diameter. 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 pipe, a granulating part, a wind crushing chamber, a water tank and the like. The granulating component 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 chamber and externally connected with high-pressure gas, so that the high-pressure gas can reliably enter the component chamber, and the two chambers are communicated to keep the pressure in the chamber basically balanced; the nozzles are arranged on the front end panel of the cavity, the nozzles are a plurality of circular pipelines with different diameters, the nozzles are distributed in a multi-layer arc shape on the front end panel, and the layout design can enable gas jet flow sprayed out of the nozzles of the granulating component to be in spindle-shaped distribution and to be in a gradually weakened distribution state from the middle to two sides in the horizontal direction; the jet flow state is more beneficial to improving the uniformity and the dispersity of particles after the thermal steel slag is crushed, and improving the slag bonding condition in the wind crushing process, thereby improving the operation efficiency of the system and ensuring the stable and smooth running of the wind crushing process. The slag flowing groove is positioned right above the granulating device, and the high-temperature steel slag enters the wind crushing chamber from the slag flowing groove; high-pressure air enters the component chamber of the granulating component through the air inlet pipe and is sprayed out from the nozzle of the front panel to form jet air flow; jet air flow acts on the high-temperature liquid steel slag to form fine slag drops; the slag drops into a water pool below the wind crushing chamber to be cooled to form solid slag particles. The upper part of the wind crushing chamber is connected with an exhaust pipeline to exhaust the gas in the wind crushing chamber. When the treatment for improving the wind crushing and slagging of the steel slag is carried out, high-temperature steel slag enters a wind crushing chamber 4 from a steel slag chute 1 to form a downward liquid slag flow; 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 in a double-layer arc shape on the front end panel 12; high-pressure air enters the left chamber 8 from the left air inlet pipe 6, enters the right chamber 9 from the right air inlet pipe 7, and forms jet air flow when the high-pressure air entering the component cavity 14 is ejected from the plurality of nozzles 13 on the front end panel 12; jet air flow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine dispersed slag particles; the layout design of the plurality of nozzles 13 allows the high-pressure gas to pass through the granulating component to form spindle-shaped distributed jet flow and to present a gradually weakened distribution state from the middle to the two sides in the horizontal direction; the slag particles formed by the treatment of the granulating component fall into a water pool 5 below the wind crushing chamber 4 to be cooled, solid slag particles are formed, 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 running of the wind crushing process. The experimental verification shows that the scheme of the invention has the following characteristics: 1) The method can improve the stability of the running process of the wind crushing system, reduce adverse effects such as slag formation and the like, and improve the system efficiency. 2) Based on the granulating device, the generated gas jet flow is more suitable for the hydrodynamic characteristics of the flowing liquid steel slag, and the uniformity and the dispersity of the particles after the steel slag is crushed can be improved. 3) The granulating component is easy to process and low in manufacturing cost. The treatment device for improving the slag wind crushing and slagging of the steel slag has a simple structure, and in the process of wind crushing of the steel slag, the gas jet flow of the granulating component is more matched with the hydrodynamic characteristics of the flowing liquid steel slag, so that the uniformity and the dispersity of slag particles can be effectively improved, the poor slag forming condition in the process of wind crushing is improved, the running efficiency of a system is improved, and the stable and smooth running of the wind crushing process is ensured.
The left air inlet pipe 6 is communicated with the left chamber 8, and the right air inlet pipe 7 is communicated with the right chamber 9. The left air inlet pipe 6 and the right air inlet pipe 7 are respectively communicated with high-pressure air. According to the structure, the left cavity is filled with air through the left air inlet pipe, the right cavity is filled with air through the right air inlet pipe, high-pressure air is ensured to reliably enter the component cavity, and the two cavities are communicated, so that the pressure in the cavities is basically balanced. The gas entering the chamber from the gas inlet pipe is limited jet flow, the jet flow travel is short, and the jet flow coverage area is limited; the gas flow characteristics inside and outside the jet boundary are greatly different, and the design of double-chamber double-jet is adopted to enlarge the area of the front panel inside the chamber covered by the jet, so that the difference of gas flow is reduced; the dual chamber design also facilitates increasing the symmetry of the gas flow within the chamber, thereby increasing the symmetry of the outlet jet. The nozzle diameter on the front panel gradually decreases from the center to the two sides, aiming at controlling the distribution state of the flow intensity gradually weakening from the middle to the two sides.
The lower part of the wind crushing chamber 4 is of an opening structure, and the lower part of the wind crushing chamber 4 is communicated with a water pool 5. With the structure, the high-temperature steel slag is processed by the granulating component in the falling process, so that slag particles fall into the water pool 5 below the wind crushing chamber 4 to be cooled, solid slag particles are formed, and then the solid slag particles are collected to finish the processing.
The upper part of the wind crushing chamber 4 is provided with an exhaust pipeline 3.
The high-pressure gas entering the granulating member 2 is provided in such a structure that a spindle-shaped distribution of jet streams is formed when it is ejected from the nozzles 13. The jet flow is distributed in a horizontal direction in a gradually weakened state from the middle to the two sides. When the high-temperature steel slag enters the wind crushing chamber 4 from the steel slag chute 1, the high-temperature steel slag is arranged to form a downward flowing liquid slag stream structure in the wind crushing chamber 4. In the above structure, high-pressure air enters the left chamber 8 from the left air inlet pipe 6, enters the right chamber 9 from the right air inlet pipe 7, and forms jet air flow when the high-pressure air entering the component cavity 14 is jetted from the plurality of nozzles 13 on the front end panel 12; jet air flow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine dispersed slag particles; the layout design of the plurality of nozzles 13 allows the high-pressure gas to pass through the granulating component to form spindle-shaped distributed jet flow and to present a gradually weakened distribution state from the middle to the two sides in the horizontal direction; effectively improving the uniformity and the dispersity of the particles after the steel slag is crushed.
The invention also relates to a treatment method for improving the slag wind-break slagging of the steel slag, which has simple steps, ensures that gas jet flow is more suitable for the hydrodynamic characteristics of the flowing liquid steel slag in the slag wind-break process, can effectively improve the uniformity and the dispersity of slag particles, improves the poor slag-break condition in the wind-break process, improves the operation efficiency of a system, and ensures the stable and smooth running of the wind-break process.
The treatment method for improving the wind-break slagging of the steel slag comprises the following treatment steps:
s1, high-temperature steel slag enters a wind 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 in a double-layer arc shape on the front end panel 12; high-pressure air enters the left chamber 8 from the left air inlet pipe 6, enters the right chamber 9 from the right air inlet pipe 7, and forms jet air flow when the high-pressure air entering the component cavity 14 is ejected from the plurality of nozzles 13 on the front end panel 12; jet air flow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine dispersed slag particles; the layout design of the plurality of nozzles 13 allows the high-pressure gas to pass through the granulating component to form spindle-shaped distributed jet flow and to present a gradually weakened distribution state from the middle to the two sides in the horizontal direction; s3, the slag particles formed through the treatment of the granulating component fall into a water pool 5 below the wind crushing chamber 4 to be cooled, solid slag particles are formed, and then the solid slag particles are collected to finish wind crushing treatment of the steel slag.
When the 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 isolation plate 15, so that the pressure balance of the left chamber 8 and the right chamber 9 is kept. The two chambers respectively enter high-pressure gas, and the gas enters at high pressure and high speed.
The invention relates to a treatment device for improving wind-break slagging of steel slag, which comprises a steel slag chute (slag flowing groove), an air inlet pipe, a granulating part, a wind-break chamber, a water tank and the like. The granulating component 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 chamber and externally connected with high-pressure gas, so that the high-pressure gas can reliably enter the component chamber, and the two chambers are communicated to keep the pressure in the chamber basically balanced; the nozzles are arranged on the front end panel of the cavity, the nozzles are a plurality of circular pipelines with different diameters, the nozzles are distributed in a multi-layer arc shape on the front end panel, and the layout design can enable gas jet flow sprayed out of the nozzles of the granulating component to be in spindle-shaped distribution and to be in a gradually weakened distribution state from the middle to two sides in the horizontal direction; the jet flow state is more beneficial to improving the uniformity and the dispersity of particles after the thermal steel slag is crushed, and improving the slag bonding condition in the wind crushing process, thereby improving the operation efficiency of the system and ensuring the stable and smooth running of the wind crushing process. The slag flowing groove is positioned right above the granulating device, and the high-temperature steel slag enters the wind crushing chamber from the slag flowing groove; high-pressure air enters the component chamber of the granulating component through the air inlet pipe and is sprayed out from the nozzle of the front panel to form jet air flow; jet air flow acts on the high-temperature liquid steel slag to form fine slag drops; the slag drops into a water pool below the wind crushing chamber to be cooled to form solid slag particles. The upper part of the wind crushing chamber is connected with an exhaust pipeline to exhaust the gas in the wind crushing 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 flow; 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 in a double-layer arc shape on the front end panel; high-pressure air enters the left cavity from the left air inlet pipe, enters the right cavity from the right air inlet pipe, and forms jet air flow when the high-pressure air entering the component cavity is ejected from a plurality of nozzles on the front end panel; jet air flow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine dispersed slag particles; the layout design of the plurality of nozzles enables the high-pressure gas to pass through the granulating component to form spindle-shaped distributed jet flow, and the jet flow is in a gradually weakened distribution state from the middle to the two sides in the horizontal direction; the slag particles formed by the treatment of the granulating component fall into a water pool below the wind crushing chamber to be cooled, solid slag particles are formed, 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 running of the wind crushing process. The experimental verification shows that the scheme of the invention has the following characteristics: 1) The method can improve the stability of the running process of the wind crushing system, reduce adverse effects such as slag formation and the like, and improve the system efficiency. 2) Based on the granulating device, the generated gas jet flow is more suitable for the hydrodynamic characteristics of the flowing liquid steel slag, and the uniformity and the dispersity of the particles after the steel slag is crushed 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 slag wind crushing and slagging of the steel slag, in the process of wind crushing of the steel slag, the gas jet flow of the granulating component is more matched with the hydrodynamic characteristics of the flowing liquid steel slag, so that the uniformity and the dispersity of slag particles can be effectively improved, the poor slag forming condition in the process of wind crushing is improved, the running efficiency of a system is improved, the stable and smooth running of the wind crushing process is ensured, and the performance is improved.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the specific implementation of the invention is not limited by the foregoing, but rather is within the scope of the invention as long as various modifications are made by the method concept and technical scheme of the invention, or the concept and technical scheme of the invention are directly applied to other occasions without modification.
Claims (8)
1. The utility model provides an improve processing apparatus of garrulous slagging-off of slag wind which characterized in that: the device comprises a wind crushing chamber (4), wherein one side of the wind crushing chamber (4) is communicated with a steel slag chute (1), one side of the wind crushing chamber (4) provided with the steel slag chute (1) is simultaneously provided with a granulating component (2), the granulating component (2) extends into the wind crushing chamber (4), the lower part of the wind crushing 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 separation plate (15), a plurality of connecting channels (10) are arranged on the separation plate (15), a rear end panel (16) of the component cavity (14) positioned outside the wind crushing chamber (4) is communicated with a left air inlet pipe (6) and a right air inlet pipe (7), a front end panel (12) of the component cavity (14) positioned inside the wind crushing chamber (4) is provided with a nozzle group (11), the nozzle group (13) comprises a plurality of nozzles (13), the nozzles (13) form an arc-shaped distribution structure, the diameters of the nozzles (13) are arranged in the structure, and the diameters of the nozzles (13) are gradually increased from the middle positions of the nozzle groups (13) to the middle positions of the nozzle groups are gradually arranged in the structure;
the high-pressure gas entering the granulating component (2) is arranged to form a spindle-shaped distributed jet flow structure when being sprayed out from the nozzle (13);
the jet flow is distributed in a horizontal direction in a gradually weakened state from the middle to the two sides.
2. The treatment device for improving wind-break slagging of steel slag according to claim 1, wherein: the left air inlet pipe (6) is communicated with the left chamber (8), and the right air inlet pipe (7) is communicated with the right chamber (9).
3. The treatment device for improving wind-break slagging of steel slag according to claim 1 or 2, wherein: the lower part of the wind crushing chamber (4) is of an opening structure, and the lower part of the wind crushing chamber (4) is communicated with a water tank (5).
4. The treatment device for improving wind-break slagging of steel slag according to claim 3, wherein: the upper part of the wind crushing chamber (4) is provided with an exhaust pipeline (3).
5. The treatment device for improving wind-break slagging of steel slag according to claim 4, wherein: the left air inlet pipe (6) and the right air inlet pipe (7) are respectively communicated with high-pressure air.
6. The treatment device for improving wind-break slagging of steel slag according to claim 1 or 2, wherein: when the high-temperature steel slag enters the wind crushing chamber (4) from the steel slag chute (1), the high-temperature steel slag is arranged to be capable of forming a downward flowing liquid slag stream in the wind crushing chamber (4).
7. A method for improving slag wind-break slagging of steel slag using the apparatus for improving slag wind-break slagging of steel slag according to claim 1, comprising: the treatment method for improving the wind-break slagging of the steel slag comprises the following treatment steps:
s1, high-temperature steel slag enters a wind crushing chamber (4) from a steel slag chute (1) to form a downward liquid slag flow;
s2, the nozzles (13) are positioned on a front end panel (12) of the component cavity (14), the diameters of the plurality of nozzles (13) are different, and the plurality of nozzles (13) are distributed in a double-layer arc shape on the front end panel (12); high-pressure air enters the left chamber (8) from the left air inlet pipe (6), enters the right chamber (9) from the right air inlet pipe (7), and forms jet air flow when the high-pressure air entering the component cavity (14) is jetted from a plurality of nozzles (13) on the front end panel (12); jet air flow acts on the high-temperature liquid steel slag to enable the high-temperature liquid steel slag to form fine dispersed slag particles; the layout design of the plurality of nozzles (13) enables the high-pressure gas to pass through the granulating component to form jet flow with spindle-shaped distribution, and the jet flow is in a distribution state of gradually weakening from the middle to the two sides in the horizontal direction;
s3, forming slag particles through treatment of the granulating component, cooling the slag particles in a water tank (5) below the wind crushing chamber (4), forming solid slag particles, collecting the solid slag particles, and finishing the treatment.
8. The method for improving the wind-break slagging of steel slag according to claim 7, wherein the method comprises the following steps: when high-pressure gas enters the component cavity (14), the left cavity (8) and the right cavity (9) are communicated through the connecting channel (10) on the isolation plate (15) so as to keep the pressure balance of the left cavity (8) and the right cavity (9).
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