Ventilation environment-friendly equipment for flame retardance of blast furnace

Abstract

The invention discloses ventilation environment-friendly equipment for flame retardance of a blast furnace, and relates to the technical field of blast furnace air flues, the ventilation environment-friendly equipment comprises a pipeline blast furnace, a cleaning assembly is arranged on the outer wall of the pipeline blast furnace, a conveying air flue blast furnace is arranged on one end face of the pipeline blast furnace, and an ash discharging mechanism is arranged in the conveying air flue blast furnace; the cleaning assembly comprises a mounting frame blast furnace, a motor blast furnace, a rotating cylinder blast furnace, a mounting plate blast furnace, a nozzle blast furnace, a second connecting pipe blast furnace and a shell blast furnace; the mounting frame blast furnace is fixedly mounted on the outer wall of an air inlet of the pipeline blast furnace through screws; according to the technical scheme, by arranging the cleaning assembly, the interior of the blast furnace ventilation pipeline can be automatically cleaned, accumulated dust is reduced, and the ventilation pipeline is prevented from being blocked. According to the structural arrangement of the ash discharging mechanism, the vibration amplitude of the movable pipe is reduced through a spring and a buffering cushion, dust is effectively shaken off and discharged along with airflow, dust accumulation is avoided, and the ash discharging effect is improved.

Description

Technical Field

[0001] This invention relates to the field of blast furnace air duct technology, and in particular to a ventilation and environmental protection device for flame retardant blast furnaces. Background Technology

[0002] In blast furnace production, a smooth ventilation system is crucial for ensuring production safety and efficiency. However, due to the high temperature and dusty environment inside the blast furnace, ventilation ducts easily accumulate large amounts of dust and impurities. This not only affects ventilation efficiency but may also pose safety hazards such as fires. Traditional cleaning methods usually require manual cleaning after the furnace is shut down, which is not only time-consuming and labor-intensive but also inefficient.

[0003] While some automated ventilation duct cleaning devices exist in the existing technology, these devices are often complex in structure, expensive, and have limited cleaning effect. Especially in the special environment of blast furnaces, they are difficult to effectively solve the problem of ash accumulation in ventilation ducts.

[0004] Therefore, designing an environmentally friendly device that can automatically clean ventilation ducts during blast furnace operation to reduce the impact of ash accumulation on the ventilation system, improve production efficiency, and reduce maintenance costs is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a ventilation and environmental protection device for flame retardant blast furnace, so as to solve the problems in the background art.

[0006] In view of this, the present invention provides a ventilation and environmental protection device for flame retardant blast furnace, including a pipeline blast furnace, wherein a cleaning component is provided on the outer wall of the pipeline blast furnace, a conveying air duct blast furnace is provided on one end face of the pipeline blast furnace, and an ash removal mechanism is provided inside the conveying air duct blast furnace.

[0007] The cleaning assembly includes a frame blast furnace, a motor blast furnace, a rotary drum blast furnace, a mounting plate blast furnace, a nozzle blast furnace, a second connecting pipe blast furnace, and a shell blast furnace. The frame blast furnace is fixedly installed on the outer wall of the air inlet of the pipe blast furnace with screws. The motor blast furnace is fixedly installed on one side of the frame blast furnace, with its output end extending into the interior of the frame blast furnace. The rotary drum blast furnace is fixedly installed on the output end of the motor blast furnace. The mounting plate blast furnace is fixedly installed on the inner wall of the rotary drum blast furnace. The nozzle blast furnace is fixedly installed on one side of the mounting plate blast furnace. The second connecting pipe blast furnace is located on one side of the frame blast furnace, and the shell blast furnace is located at one end of the second connecting pipe blast furnace.

[0008] The ash removal mechanism includes a movable tube blast furnace, a spring blast furnace, and a buffer pad blast furnace. The inner wall of the conveying air duct blast furnace has a movable cavity blast furnace. One end of the spring blast furnace is fixedly installed on the inner wall of the movable cavity blast furnace, and the other end of the spring blast furnace is fixedly installed on the side wall of the movable tube blast furnace. The movable tube blast furnace is movably connected to the inside of the movable cavity blast furnace through the spring blast furnace, and the buffer pad blast furnace is fixedly installed on the side wall of the movable tube blast furnace.

[0009] Optionally, a connecting frame blast furnace is fixedly installed at the bottom of the inner wall of the mounting frame blast furnace, the second connecting pipe blast furnace is fixedly installed on one side of the connecting frame blast furnace, a first connecting pipe blast furnace is fixedly installed at one end of the mounting plate blast furnace, and one end of the first connecting pipe blast furnace is fixedly installed at the top of the connecting frame blast furnace.

[0010] Optionally, the nozzle blast furnace outlet extends to the outside of the outer wall of the rotating drum blast furnace.

[0011] Optionally, the first connecting pipe blast furnace and the second connecting pipe blast furnace are connected through the connecting frame blast furnace, and the first connecting pipe blast furnace is connected to the nozzle blast furnace through the mounting plate blast furnace.

[0012] Optionally, a connecting blast furnace is fixedly installed at the top of the outer wall of the outer blast furnace, one end of the connecting blast furnace extends into the interior of the outer blast furnace, and one end of the second connecting pipe blast furnace is threadedly connected to the connecting blast furnace.

[0013] Optionally, a water pump blast furnace is fixedly installed on one side of the inner wall of the outer shell blast furnace, the connection port blast furnace is fixedly installed at one end of the outlet of the water pump blast furnace, a flexible hose is fixedly installed at one end of the inlet of the water pump blast furnace, an installation hole is opened at the bottom of one side of the outer shell blast furnace, a storage frame blast furnace is slidably installed at the installation hole of the outer shell blast furnace, and the flexible hose extends to the bottom of the interior of the storage frame blast furnace.

[0014] Optionally, the top of the mounting frame blast furnace is provided with a connecting hole, and baffle blast furnaces are fixedly installed on both sides of the inner wall of the connecting hole. A sealing plate blast furnace is fixedly installed at one end of the baffle blast furnace, and the sealing plate blast furnace is pressed against the outer wall of the rotating drum blast furnace.

[0015] Optionally, a plurality of spring blast furnaces are provided, and the plurality of spring blast furnaces are evenly distributed inside the movable cavity blast furnace;

[0016] The buffer pad blast furnace is made of polyurethane rubber.

[0017] The inner wall of the active tube blast furnace is equipped with a high-efficiency flow mechanism.

[0018] Optionally, the high-efficiency flow mechanism includes a blast furnace with air guide, a movable tube blast furnace, a tension spring blast furnace, and a fixed tube blast furnace. The air guide blast furnace and the fixed tube blast furnace are both fixedly installed on the inner wall of the movable tube blast furnace. The fixed tube blast furnace is located on one side of the air guide blast furnace, and the tension spring blast furnace is fixedly installed between the side wall of the movable tube blast furnace and the inner wall of the movable tube blast furnace. The tension spring blast furnace is located inside the fixed tube blast furnace.

[0019] Optionally, the blast furnace cross-section of the air guide is arc-shaped, and a rounded bevel is provided on one end side wall of the movable cylinder blast furnace.

[0020] As can be seen from the above technical solutions, the embodiments of the present invention have the following advantages:

[0021] 1. This invention provides a ventilation and environmental protection device for flame retardant blast furnaces. By incorporating a cleaning component, it enables automatic cleaning of the interior of the blast furnace ventilation ducts, reducing ash accumulation, preventing duct blockage, and ensuring the normal operation of the ventilation system. The ash removal mechanism utilizes springs and buffer pads to reduce the vibration amplitude of the moving pipe, effectively shaking off dust and discharging it with the airflow, preventing dust accumulation and improving ash removal efficiency. Furthermore, the use of polyurethane rubber as the buffer pad material effectively reduces noise generated during moving pipe vibration, improving the working environment.

[0022] 2. The present invention provides a ventilation and environmental protection device for flame retardant blast furnaces. The device has a built-in cleaning agent delivery system that can directly spray the cleaning agent into the ventilation duct to achieve automated cleaning, reduce the need for manual intervention, and lower maintenance costs.

[0023] 3. The present invention provides a ventilation and environmental protection device for flame retardant blast furnaces. The nozzles are driven by a motor to achieve reciprocating rotation at a certain angle. The angle and range of the nozzle spray can be adjusted according to actual needs, thereby enhancing the flexibility and effectiveness of cleaning.

[0024] 4. The ventilation and environmental protection equipment for flame retardant blast furnace of the present invention, through the structural setting of the high-efficiency flow mechanism, and through components such as air guides and movable cylinders, increases the airflow speed and ash removal effect, and further improves the ventilation efficiency.

[0025] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0026] The invention will be further described below with reference to the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a cross-sectional view of the outer casing of the present invention;

[0029] Figure 3 This is a cross-sectional view of the mounting frame of the present invention;

[0030] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5 This is a schematic diagram of the internal structure of the conveying air duct of the present invention;

[0032] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;

[0033] Figure 7 For the present invention Figure 5 Enlarged structural diagram at point B.

[0034] Explanation of reference numerals in the attached drawings: 1. Pipe; 2. Mounting frame; 31. Conveying air duct; 32. Air guide; 33. Movable cylinder; 34. Movable pipe; 35. Fixed cylinder; 36. Tension spring; 37. Movable cavity; 38. Spring; 39. Buffer pad; 4. Motor; 5. Rotating cylinder; 6. Mounting plate; 7. Nozzle; 8. First connecting pipe; 9. Connecting frame; 10. Second connecting pipe; 11. Outer shell; 12. Water pump; 13. Connection port; 14. Storage frame; 15. Baffle; 16. Sealing plate. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0036] The following describes in detail, with reference to the accompanying drawings, a ventilation and environmental protection device for flame retardant blast furnaces according to an embodiment of the present invention.

[0037] Example 1

[0038] For easier understanding, please refer to Figures 1 to 7This invention provides an embodiment of a ventilation and environmental protection device for flame retardant blast furnaces, comprising a pipe 1, a cleaning assembly on the outer wall of the pipe 1, a conveying air duct 31 at one end of the pipe 1, and an ash removal mechanism inside the conveying air duct 31; the cleaning assembly includes a mounting frame 2, a motor 4, a rotating cylinder 5, a mounting plate 6, a nozzle 7, a second connecting pipe 10, and a housing 11; the mounting frame 2 is fixedly mounted to the outer wall of the air inlet of the pipe 1 by screws; the motor 4 is fixedly mounted to one side of the mounting frame 2, with the output end of the motor 4 extending into the interior of the mounting frame 2; the rotating cylinder 5 is fixedly mounted to the output end of the motor 4; the mounting plate 6 is fixedly mounted to the inner wall of the rotating cylinder 5; the nozzle 7 is fixedly mounted to one side of the mounting plate 6; the second connecting pipe 10 is located on one side of the mounting frame 2; and the housing 11 is located at one end of the second connecting pipe 10.

[0039] The ash removal mechanism includes a movable tube 34, a spring 38, and a buffer pad 39. The inner wall of the conveying air duct 31 has a movable cavity 37. One end of the spring 38 is fixedly installed on the inner wall of the movable cavity 37, and the other end of the spring 38 is fixedly installed on the side wall of the movable tube 34. The movable tube 34 is movably connected to the inside of the movable cavity 37 through the spring 38, and the buffer pad 39 is fixedly installed on the side wall of the movable tube 34.

[0040] It should be noted that, by setting up the cleaning component, the second connecting pipe 10 extends out from the bottom of the blast furnace ventilation system. The storage box 14 is filled with blast furnace air conditioning cleaning agent. The cleaning agent can be delivered to the nozzle 7 through the second connecting pipe 10 for spraying, which facilitates cleaning of the inner wall of the pipe 1 and cleaning of the pipe 1, reducing the impact of ash accumulation on the backflow of air in the blast furnace air duct. The nozzle 7 is installed inside the pipe 1 by setting up the installation box 2. The first connecting pipe 8 and the second connecting pipe 10 are used to connect the nozzle 7 and the water pump 12. The nozzle 7 is used to spray the cleaning agent to clean the inside of the pipe 1.

[0041] By incorporating spring 38, the movable tube 34 can move within the movable cavity 37 inside the conveying duct 31. During blast furnace operation, air vibrations cause the movable tube 34 to vibrate within the conveying duct 31. The buffer pad 39 prevents excessive vibration of the movable tube 34, thus dislodging dust from its inner wall. This dislodged dust is carried away by the airflow within the conveying duct 31 and discharged outside the blast furnace, preventing excessive dust accumulation.

[0042] In some embodiments, such as Figure 2 , Figure 3As shown, a connecting frame 9 is fixedly installed at the bottom of the inner wall of the mounting frame 2, and a second connecting pipe 10 is fixedly installed on one side of the connecting frame 9. A first connecting pipe 8 is fixedly installed at one end of the mounting plate 6, and one end of the first connecting pipe 8 is fixedly installed at the top of the connecting frame 9. The nozzle 7 outlet extends to the outside of the outer wall of the rotating cylinder 5. The first connecting pipe 8 and the second connecting pipe 10 are connected through the connecting frame 9, and the first connecting pipe 8 is connected to the nozzle 7 through the mounting plate 6.

[0043] It should be noted that the rotating cylinder 5 and the nozzle 7 at one end of the mounting frame 2 are inserted into the inside of the pipe 1 through the connecting hole, and the mounting frame 2 is fixed to the outer wall of the pipe 1 with screws.

[0044] In some embodiments, such as Figure 2 As shown, a connection port 13 is fixedly installed at the top of the outer wall of the outer shell 11. One end of the connection port 13 extends into the interior of the outer shell 11. One end of the second connecting pipe 10 is threadedly connected to the connection port 13. A water pump 12 is fixedly installed on one side of the inner wall of the outer shell 11. The connection port 13 is fixedly installed at the outlet end of the water pump 12. A hose is fixedly installed at the inlet end of the water pump 12. An installation hole is opened at the bottom of one side of the outer shell 11. A storage frame 14 is slidably installed at the installation hole of the outer shell 11. The hose extends to the bottom of the interior of the storage frame 14.

[0045] It should be noted that when the water pump 12 is started, it can draw cleaning agent from inside the storage box 14 and deliver it to the nozzle 7 through the first connecting pipe 8 and the second connecting pipe 10 to clean the inside of the pipe 1. The mounting plate 6 is hollow inside, and the nozzle 7 is threadedly connected to one side of the mounting plate 6. The nozzle 7 is connected to the first connecting pipe 8.

[0046] In some embodiments, such as Figure 4 As shown, the top of the mounting frame 2 has a connecting hole, and baffles 15 are fixedly installed on both sides of the inner wall of the connecting hole. A sealing plate 16 is fixedly installed on one end of the baffle 15, and the sealing plate 16 is pressed against the outer wall of the rotating cylinder 5.

[0047] It should be noted that by setting baffle 15 and sealing plate 16 to seal the outer wall of rotating cylinder 5, dust is prevented from entering the mounting frame 2. When the motor 4 is started, it can drive rotating cylinder 5 to rotate. When the pipe 1 is not cleaned, the nozzle 7 on rotating cylinder 5 can rotate into the mounting frame 2 to prevent dust from falling into the nozzle 7 and clogging the nozzle 7.

[0048] In this example, motor 4 can be a servo motor. Motor 4 is a well-known component and will not be described further here.

[0049] In some embodiments, a plurality of springs 38 are provided, and the plurality of springs 38 are evenly distributed inside the movable cavity 37; the buffer pad 39 is made of polyurethane rubber; and the inner wall of the movable tube 34 is provided with a high-efficiency flow mechanism. The high-efficiency flow mechanism includes an air guide 32, a movable cylinder 33, a tension spring 36, and a fixed cylinder 35. The air guide 32 and the fixed cylinder 35 are both fixedly installed on the inner wall of the movable tube 34. The fixed cylinder 35 is located on one side of the air guide 32, and the tension spring 36 is fixedly installed between the side wall of the movable cylinder 33 and the inner wall of the movable cylinder 33, and the tension spring 36 is located inside the fixed cylinder 35. The air guide 32 has an arc-shaped cross-section, and one end of the movable cylinder 33 has a rounded bevel.

[0050] It should be noted that the support effect can be increased by setting several springs 38, and the noise generated by the movement of the movable tube 34 can be reduced by setting a buffer pad 39. When the air is being exhausted inside the conveying duct 31, the airflow velocity will increase when the airflow passes through the air guide 32. By setting a movable cylinder 33 on one side of the air guide 32, the movable cylinder 33 can be moved when the airflow passes through it, and then returned to its original position by the tension spring 36. During this process, the movable cylinder 33 will collide with the fixed cylinder 35, thereby enhancing the vibration of the movable cylinder 33. This can both increase the airflow velocity and improve the ash removal effect.

[0051] Working principle: When cleaning the inside of the blast furnace duct, the water pump 12 starts to draw cleaning agent from the storage box 14 and delivers it to the nozzle 7 through the first connecting pipe 8 and the second connecting pipe 10 to clean the inside of the pipe 1. At the same time, the motor 4 starts to drive the rotating cylinder 5 to reciprocate at a certain angle, adjusting the angle at which the nozzle 7 sprays the cleaning agent. Meanwhile, air enters the blast furnace duct, blowing the cleaning agent out of the blast furnace duct outlet to clean the inside of the blast furnace duct. At the same time, the air vibration generated during the operation of the blast furnace will cause the movable pipe 34 to vibrate inside the conveying duct 31. By setting the buffer pad 39, the vibration amplitude of the movable pipe 34 can be prevented from being too large, so that the dust on the inner wall of the movable pipe 34 can be shaken off. The shaken dust can be carried away by the airflow inside the conveying duct 31 and discharged to the outside of the blast furnace. When the conveying duct 31 is ventilating, the airflow velocity will increase when the airflow passes through the air guide 32.

[0052] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A ventilating environmental friendly device for fire retardant of blast furnace, characterized in that: The utility model provides a pipeline (1) is provided with a cleaning assembly on the outer wall of the pipeline (1), one end of the pipeline (1) is provided with a conveying air duct (31), and a dust discharging mechanism is arranged in the conveying air duct (31). The cleaning assembly comprises a mounting frame (2), a motor (4), a rotating cylinder (5), a mounting plate (6), a spray head (7), a second connecting pipe (10) and a shell (11), the mounting frame (2) is fixedly installed on the outer wall of the air inlet of the pipeline (1) by screws, the motor (4) is fixedly installed on one side of the mounting frame (2), the output end of the motor (4) extends into the mounting frame (2), the rotating cylinder (5) is fixedly installed on the output end of the motor (4), the mounting plate (6) is fixedly installed on the inner wall of the rotating cylinder (5), the spray head (7) is fixedly installed on one side of the mounting plate (6), the second connecting pipe (10) is arranged on one side of the mounting frame (2), and the shell (11) is arranged at one end of the second connecting pipe (10). The dust discharging mechanism comprises a movable pipe (34), a spring (38) and a buffer pad (39), the inner wall of the conveying air duct (31) is provided with a movable cavity (37), one end of the spring (38) is fixedly installed on the inner wall of the movable cavity (37), the other end of the spring (38) is fixedly installed on the side wall of the movable pipe (34), the movable pipe (34) is movably connected in the movable cavity (37) through the spring (38), and the buffer pad (39) is fixedly installed on the side wall of the movable pipe (34).

2. A blast furnace fire-retardant, environmentally friendly ventilation device according to claim 1, characterized in that: A communication frame (9) is fixedly installed on the inner wall of the bottom end of the mounting frame (2), the second connecting pipe (10) is fixedly installed on one side of the communication frame (9), one end of the mounting plate (6) is fixedly provided with a first connecting pipe (8), and the first connecting pipe (8) is fixedly installed on the top end of the communication frame (9).

3. A ventilating environment-friendly device for fire prevention of blast furnace according to claim 1, characterized in that: The outlet of the spray head (7) extends to the outside of the outer wall of the rotating cylinder (5).

4. A ventilating environment-friendly device for fire prevention of a blast furnace according to claim 2, characterized in that: The first connecting pipe (8) and the second connecting pipe (10) are communicated through the communication frame (9), and the first connecting pipe (8) is communicated with the spray head (7) through the mounting plate (6).

5. A ventilating environment-friendly device for fire prevention of blast furnace according to claim 1, characterized in that: A connecting port (13) is fixedly installed on the top end of the outer wall of the shell (11), one end of the connecting port (13) extends into the shell (11), and one end of the second connecting pipe (10) is threadedly connected with the connecting port (13).

6. A ventilating environmentally friendly device for fire prevention in a blast furnace according to claim 5, characterized in that: A water pump (12) is fixedly installed on one side of the inner wall of the shell (11), the connecting port (13) is fixedly installed on one end of the outlet of the water pump (12), a hose is fixedly installed on one end of the inlet of the water pump (12), a mounting hole is formed in the bottom end of one side of the shell (11), a storage frame (14) is slidably installed in the mounting hole of the shell (11), and the hose extends to the bottom end of the storage frame (14).

7. A ventilating environmentally friendly device for fire prevention in a blast furnace according to claim 6, characterized in that: A communication hole is formed in the top end of the mounting frame (2), baffles (15) are fixedly installed on the inner wall of the communication hole, a sealing plate (16) is fixedly installed on one end of the baffle (15), and the sealing plate (16) is pressed against the outer wall of the rotating cylinder (5).

8. A ventilating environmentally friendly device for fire prevention in blast furnace according to claim 1, characterized in that: The spring (38) is provided with several springs (38) which are evenly distributed inside the movable cavity (37); The buffer pad (39) is made of polyurethane rubber; The inner wall of the movable pipe (34) is provided with a high-efficiency flow mechanism.

9. A ventilating environmentally friendly device for fire prevention in a blast furnace according to claim 8, characterized in that: The high-efficiency flow mechanism comprises a wind guide (32), a movable cylinder (33), a tension spring (36) and a fixed cylinder (35), the wind guide (32) and the fixed cylinder (35) are fixedly installed on the inner wall of the movable pipe (34), the fixed cylinder (35) is located on one side of the wind guide (32), the tension spring (36) is fixedly installed between the side wall of the movable cylinder (33) and the inner wall of the movable cylinder (33), and the tension spring (36) is located inside the fixed cylinder (35).

10. A ventilating environmentally friendly device for fire prevention in a blast furnace according to claim 9, characterized in that: The cross section of the wind guide (32) is arc-shaped, and a round corner bevel is formed in one end of the side wall of the movable cylinder (33).

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