A nozzle device for a blast furnace hot molten slag centrifuge

Abstract

This utility model discloses a nozzle device for a centrifuge containing blast furnace molten slag, including a centrifuge roller, a rubber ring, multiple nozzles, and an air ring. The rubber ring is configured to be extended to cover the cotton-like area under the centrifuge roller. An adjustable nozzle angle mechanism is provided between the rubber ring and the air ring. This mechanism includes multiple adjustable supports, one end of which is fixed to the rubber ring, and the other end is connected to the nozzle. This utility model, by extending the rubber ring, increasing the number of nozzles to at least 12, and combining the adjustable nozzle angle mechanism with an anti-clogging device, clears the blind spots of glue coverage in the cotton-like area under the centrifuge roller, reducing the waste cotton rate. Simultaneously, combined with the air ring groove interlocking structure and auxiliary air duct system, it improves the uniformity of cotton dispersion, reduces nozzle maintenance frequency, increases daily output per line, saves glue costs and waste disposal fees, improves the stability of continuous production line operation and resource utilization efficiency, and meets the requirements of efficient utilization and high-cleanliness production of blast furnace molten slag in the metallurgical industry.

Description

Technical Field

[0001] This utility model relates to the field of steel rolling production control technology, and more specifically, to a nozzle device for a blast furnace hot molten slag centrifuge. Background Technology

[0002] Mineral wool is an inorganic fiber made from industrial slag such as slow-cooled blast furnace slag as the main raw material, with the addition of other materials through remelting and fiberization. It can be made into various products such as boards, pipes, and felts, and has multiple functions such as heat insulation, heat preservation, fireproofing, corrosion resistance, moisture resistance, sound absorption, and shock resistance. It is widely used in construction, industrial equipment, and transportation, such as building exterior wall insulation, interior wall fireproofing and sound insulation, industrial kiln and pipeline insulation, and ship heat insulation.

[0003] Liquid blast furnace slag, with a temperature exceeding 1400℃, is an excellent waste heat resource. Each ton of molten blast furnace slag contains the equivalent heat of the complete combustion of 60 kg of standard coal. Utilizing the sensible heat of the high-temperature liquid blast furnace slag, research is being conducted to develop high-value-added utilization of blast furnace slag, directly using it to produce mineral wool. This significantly improves economic efficiency while effectively avoiding the release of sulfur oxides during water quenching. Therefore, the technology of directly utilizing molten blast furnace slag to produce mineral wool has attracted increasing attention from researchers and enterprises.

[0004] In existing technologies, the 350 centrifuge has an insufficiently long spray ring and a small number of nozzles (only 11), which results in the adhesive not being able to cover the cotton fibers sprayed from the lower part of the No. 2 roller, producing waste materials such as stale cotton and black residue, with a waste cotton rate as high as 15% to 20%. This not only wastes raw materials but also increases the cost of manual sorting, seriously restricting production efficiency and product quality. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, the purpose of this utility model is to provide a nozzle device for a blast furnace hot molten slag centrifuge, comprising: a centrifuge roller body, a rubber ring, multiple glue spray nozzles, and an air ring; the rubber ring is detachably installed on the lower part of the centrifuge roller body; the air ring is fixed to the outside of the centrifuge roller body; the rubber ring is positioned in the groove on the outer side of the air ring; the glue spray nozzles are evenly distributed on the rubber ring; the length of the rubber ring is configured to be extended to cover the cotton-like area at the lower part of the centrifuge roller body; wherein, an adjustable nozzle angle mechanism is provided between the rubber ring and the air ring, the mechanism comprising multiple adjustable supports, each adjustable support having one end fixed to the rubber ring and the other end connected to the glue spray nozzle, allowing the angle of the glue spray nozzle to be adjusted radially.

[0006] As a preferred embodiment, the number of the adhesive nozzles is at least 12, and each nozzle includes an anti-clogging device; the anti-clogging device includes a built-in spring and a cleaning needle, the cleaning needle being telescopically disposed at the outlet end of the nozzle via a spring mechanism to prevent the adhesive from solidifying and clogging.

[0007] As a preferred embodiment, the lower edge of the rubber ring is provided with a matching protrusion, and the outer side of the air ring is provided with a corresponding matching groove; the matching protrusion and the matching groove engage to make the rubber ring and the air ring tightly bonded.

[0008] As a preferred embodiment, an auxiliary air duct system is also included; the auxiliary air duct system is integrated on the air ring and includes multiple auxiliary air outlets; the auxiliary air outlets are evenly distributed around the circumference of the air ring and are set corresponding to the positions of the glue nozzles on the glue ring, for the purpose of assisting in the dispersion of cotton fibers.

[0009] As a preferred embodiment, the adjustable nozzle angle mechanism includes an angle adjustment knob; the angle adjustment knob is located at the end of the adjustable bracket, and the angle of the spray nozzle is locked or released by rotation.

[0010] As a preferred embodiment, the cleaning needle of the anti-clogging device is provided with a spherical head at its end; the spherical head can extend and retract to contact the outlet of the spray nozzle to provide a self-cleaning function.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention, through the synergistic effect of extending the rubber ring, increasing the number of nozzles to at least 12, and combining an adjustable nozzle angle mechanism with an anti-clogging device, forms a dynamically adjustable adhesive mist covering layer. This precisely removes the blind spots of adhesive coverage in the cotton lint under the centrifuge rollers, reducing the waste cotton rate. Simultaneously, combined with the interlocking structure of the air ring groove and the auxiliary air duct system, it improves the uniformity of cotton lint dispersion, reduces the frequency of nozzle maintenance, increases the daily output of a single line, and saves on adhesive costs and waste residue disposal fees. Under the premise of ensuring no waste residue in the mineral wool, it significantly improves the stability of continuous operation of the production line and the efficiency of resource utilization, meeting the requirements of efficient utilization and high-cleanliness production of blast furnace slag in the metallurgical industry. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the new adhesive nozzle. Detailed Implementation

[0015] The present invention will be further described below with reference to specific embodiments.

[0016] A nozzle device for a blast furnace hot molten slag centrifuge includes: a centrifuge roller body 1, a rubber ring 2, multiple glue spray nozzles 3, and an air ring 4; the rubber ring 2 is detachably installed on the lower part of the centrifuge roller body 1; the air ring 4 is fixed to the outside of the centrifuge roller body 1; the rubber ring 2 is positioned in the groove on the outer side of the air ring 4; the glue spray nozzles 3 are evenly distributed on the rubber ring 2; the length of the rubber ring 2 is configured to be extended to cover the cotton-like area at the lower part of the centrifuge roller body 1; wherein, an adjustable nozzle angle mechanism is provided between the rubber ring 2 and the air ring 4, the mechanism including multiple adjustable brackets 6, each adjustable bracket 6 having one end fixed to the rubber ring 2 and the other end connected to the glue spray nozzle 3, allowing the angle of the glue spray nozzle 3 to be adjusted radially; preferably, the adjustable brackets 6 are made of high-strength alloy material to ensure stability and durability under long-term high-temperature operation;

[0017] The bracket is ingeniously designed, allowing operators to quickly adjust the angle of the spray nozzle 3 according to actual needs, thereby improving the uniformity and efficiency of spraying.

[0018] The cotton lint covering design at the bottom of the centrifuge roller 1 effectively prevents hot molten slag from splashing onto the surface of the roller 1 during centrifugation, reducing the frequency of cleaning and maintenance and improving overall operating efficiency. At the same time, this design also helps protect the centrifuge roller 1 from hot molten slag corrosion, extending the equipment's service life.

[0019] The air ring 4 not only helps guide airflow and promotes rapid cooling and solidification of hot molten slag, but also reduces noise and dust generated during centrifugation to a certain extent, improving the working environment.

[0020] In a preferred embodiment, the number of nozzles 3 is at least 12, and each nozzle 3 includes an anti-clogging device. The anti-clogging device includes a built-in spring 7 and a cleaning needle 8. The cleaning needle 8 is telescopically positioned at the outlet end of the nozzle 3 via the spring 7 mechanism to prevent glue from solidifying and clogging the nozzle. The built-in spring 7 ensures that the cleaning needle 8 remains extended when the nozzle 3 is not in operation, ready to remove any accumulated glue residue. When the nozzle 3 starts operating, the pressure of the glue pushes the cleaning needle 8 back into the glue channel, without obstructing the normal spraying of the glue. Once the glue spraying stops, the spring 7 immediately returns the cleaning needle 8 to the outlet end, continuing its anti-clogging function. This design greatly reduces the problem of nozzle 3 clogging due to glue solidification, improving the reliability and continuous operation capability of the equipment. Furthermore, the configuration of at least 12 nozzles 3 ensures that the hot melt glue can evenly cover the cotton area, further improving the performance and operating efficiency of the centrifuge.

[0021] In a preferred embodiment, the lower edge of the rubber ring 2 is provided with a matching protrusion 9, and the outer side of the air ring 4 is provided with a corresponding matching groove 10. The matching protrusion 9 and the matching groove 10 engage, making the rubber ring 2 and the air ring 4 tightly connected. This not only enhances the connection stability between the rubber ring 2 and the air ring 4, but also effectively prevents the accumulation of hot slag or airflow in the gap between the two, thereby maintaining smooth airflow and cleanliness of the equipment. The precise engagement of the matching protrusion 9 and the matching groove 10 ensures that the rubber ring 2 and the air ring 4 remain tightly fitted even during high-speed centrifugation, avoiding additional noise and vibration caused by loosening. This not only improves the overall performance of the equipment, but also extends its service life, providing workers with a more stable and efficient centrifugation operation experience.

[0022] In a preferred embodiment, an auxiliary air duct system is also included. This system is integrated into the air ring 4 and includes multiple auxiliary air outlets 11. The auxiliary air outlets 11 are evenly distributed around the circumference of the air ring 4 and correspond to the positions of the glue nozzles 3 on the glue ring 2, serving to assist in dispersing cotton fibers. This design allows the hot melt adhesive sprayed from the nozzles 3 to better combine with the cotton fibers during the glue spraying process, preventing cotton fiber agglomeration and thus improving the centrifuge's separation effect and product quality. Simultaneously, the even distribution of the auxiliary air outlets 11 ensures balanced airflow, avoiding uneven cotton fiber distribution or equipment wear caused by uneven airflow. Furthermore, the corresponding arrangement of the auxiliary air duct system and the glue nozzles 3 makes the entire centrifugation process smoother and more efficient, further improving the equipment's operating efficiency and performance.

[0023] In a preferred embodiment, the adjustable nozzle angle mechanism includes an angle adjustment knob 12. The angle adjustment knob 12 is located at the end of the adjustable bracket 6, and its rotation locks or releases the angle of the spray nozzle 3. Operators can flexibly adjust the angle of the spray nozzle 3 according to actual needs to adapt to the processing requirements of different specifications and types of cotton lint. The rotation of the angle adjustment knob 12 is simple and quick; operators only need to rotate it slightly to achieve fine-tuning of the spray nozzle 3 angle, without the need for complicated tools or procedures. Furthermore, the angle locking mechanism ensures that the spray nozzle 3 remains stable after being adjusted to the required angle, avoiding the problem of angle changes affecting the spraying effect during centrifugal operation. This innovative design not only improves the flexibility and applicability of the equipment but also provides operators with a more convenient and efficient operating experience.

[0024] In a preferred embodiment, the cleaning needle 8 of the anti-clogging device is provided with a spherical head 13 at its end; the spherical head 13 can extend and retract to contact the outlet of the nozzle 3 to provide a self-cleaning function.

[0025] The rounded surface of the spherical head 13 effectively reduces friction with the nozzle 3 outlet, preventing damage to the nozzle 3 during cleaning. During centrifugal operation, as cotton fibers are continuously processed, impurities and residues may gradually accumulate in the nozzle 3, affecting the glue application effect. At this time, the cleaning needle 8 extends under the drive mechanism, and its spherical head 13 gently contacts and wipes the outlet of the nozzle 3, effectively removing the accumulated impurities and residues. After cleaning, the cleaning needle 8 automatically retracts, awaiting the next cleaning cycle. This self-cleaning function not only reduces the frequency and difficulty of manual cleaning but also ensures that the nozzle 3 remains clean at all times, thereby guaranteeing the continuous and efficient operation of the equipment.

[0026] The complete workflow of this device is as follows:

[0027] 1. Install the modified rubber ring 2 into the groove of the air ring 4, so that the protrusion 9 is aligned and engaged;

[0028] 2. Introduce compressed air into the auxiliary air duct;

[0029] 3. Start the centrifuge to centrifuge the molten slag through roller 1 to form a cotton-like structure;

[0030] 4. Adjust the nozzle angle so that the glue mist covers the trajectory of the falling cotton fibers;

[0031] 5. The adhesive is continuously sprayed through an anti-clogging nozzle, while the auxiliary airflow disperses the cotton fibers;

[0032] 6. When the machine stops, the cleaning needle 8 automatically scrapes off the residual adhesive, preparing it for the next cycle.

[0033] The contents not described in detail in this specification are existing technologies known to those skilled in the art, and their specifications and models can be selected according to actual conditions.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical embodiments described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A nozzle device for a blast furnace hot molten slag centrifuge, characterized in that, include: Centrifuge roller (1), rubber ring (2), multiple glue nozzles (3), and air ring (4); the rubber ring (2) is detachably installed on the lower part of the centrifuge roller (1); the air ring (4) is fixed to the outside of the centrifuge roller (1); the position of the rubber ring (2) is set at the groove on the outside of the air ring (4); the glue nozzles (3) are evenly distributed on the rubber ring (2); the length of the rubber ring (2) is configured to be extended to cover the cotton lint area at the lower part of the centrifuge roller (1); wherein, an adjustable nozzle angle mechanism is provided between the rubber ring (2) and the air ring (4), the mechanism including multiple adjustable brackets (6), one end of each adjustable bracket (6) is fixed on the rubber ring (2), and the other end is connected to the glue nozzle (3), allowing the angle of the glue nozzle (3) to be adjusted radially.

2. The nozzle device for a blast furnace hot molten slag centrifuge according to claim 1, characterized in that, The number of the glue nozzles (3) is at least 12, and each glue nozzle (3) includes an anti-clogging device; the anti-clogging device includes a built-in spring (7) and a cleaning needle (8), the cleaning needle (8) being telescopically disposed at the outlet end of the glue nozzle (3) by means of the spring (7) mechanism to prevent the glue from solidifying and clogging.

3. The nozzle device for a blast furnace hot molten slag centrifuge according to claim 1, characterized in that, The lower edge of the rubber ring (2) is provided with a matching protrusion (9), and the outer side of the air ring (4) is provided with a corresponding matching groove (10); the matching protrusion (9) and the matching groove (10) engage to make the rubber ring (2) and the air ring (4) tightly connected.

4. The nozzle device for a blast furnace hot molten slag centrifuge according to claim 1, characterized in that, It also includes an auxiliary air duct system; the auxiliary air duct system is integrated on the air ring (4) and includes multiple auxiliary air outlets (11); the auxiliary air outlets (11) are evenly distributed around the air ring (4) and are set in a position corresponding to the glue nozzle (3) of the glue ring (2) to assist in dispersing cotton fibers.

5. The nozzle device for a blast furnace hot molten slag centrifuge according to claim 1, characterized in that, The adjustable nozzle angle mechanism includes an angle adjustment knob (12); the angle adjustment knob (12) is located at the end of the adjustable bracket (6), and the angle of the spray nozzle (3) is locked or released by rotation.

6. The nozzle device for a blast furnace hot molten slag centrifuge according to claim 2, characterized in that, The cleaning needle (8) of the anti-clogging device is provided with a ball head (13) at its end; the ball head (13) can extend and retract to contact the outlet of the spray nozzle (3) to provide a self-cleaning function.

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