Wind shielding device additionally arranged on blowing ring opening

Abstract

The utility model relates to the technical field of blast furnace pulverized coal injection, and discloses an injection ring opening additionally-installed wind shielding device which comprises a blast furnace communicating pipe, and the top of the blast furnace communicating pipe is connected with a conveying injection pipe; the cleaning mechanism is located on the outer wall of the conveying and blowing pipe, and the cleaning mechanism comprises a plurality of evenly-distributed ventilation openings formed in the outer wall of the conveying and blowing pipe, a scraping assembly and a reset assembly; through the arrangement of the cleaning mechanism, scraping cleaning can be achieved, dust, pulverized coal or other injection objects are not prone to being accumulated on the inner wall of the conveying injection pipe, the blocking risk is reduced, the injection efficiency is improved, gas distribution in the blast furnace is more uniform, and it is avoided that effective utilization of a reducing agent and distribution of high-temperature gas are affected; therefore, the working efficiency of the blast furnace is improved, and meanwhile the problems that a large number of substances are accumulated in the conveying injection pipe in an existing device, the working load of an injection assembly is increased, energy consumption is increased, and the operation cost is increased are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace coal powder injection, in particular to an injection ring port equipped with a wind shielding device. Background Art

[0002] The blast furnace injection ring device is an auxiliary equipment used in the blast furnace smelting process. Its main function is to spray powder into the blast furnace through the ring to improve the heat utilization rate and smelting efficiency of the blast furnace, ensure that the fuel can be evenly sprayed into the blast furnace and mixed with the high-temperature gas in the furnace. It can adjust the injection amount and injection distribution to ensure the stability and efficiency of the blast furnace combustion process, while reducing energy consumption and pollutant emissions.

[0003] The Chinese patent with the announcement number CN221956131U discloses a blast furnace coal powder injection mechanism, which adds coal powder into the coal powder box, heats the inner shell by the operation of the heating pipe, rotates the first rotating shaft by the operation of the first driving device, stirs the coal powder by the stirring rod, heats the coal powder in conjunction with the heating pipe, heats the coal powder and dries it, and prevents it from getting wet; when the heated coal powder enters the crushing box, the third rotating shaft rotates by the operation of the third driving device, and the coal powder is crushed by the rotation of the third rotating shaft in conjunction with the crushing blade, and the crushed coal powder is fed into the crushing box through the second feeding pipe. The coal powder is transported into the delivery blow pipe under the action of the airflow, which can effectively prevent the coal powder from agglomerating, facilitate the delivery and blowing of the coal powder, and prevent the pipeline from being blocked. However, the existing device is difficult to clean the delivery blow pipe during use, resulting in the accumulation of dust, coal powder or other injection materials on the inner wall of the delivery blow pipe, increasing the risk of blockage, reducing the injection efficiency, and causing uneven gas distribution inside the blast furnace, affecting the effective utilization of the reducing agent and the distribution of high-temperature gas, thereby reducing the working efficiency of the blast furnace. At the same time, a large amount of material accumulates inside the delivery blow pipe, which will increase the workload of the injection component, increase energy consumption, and increase operating costs. Utility Model Content

[0004] The purpose of this utility model is to provide a blowing ring with an additional wind shield device, which solves the problem in the background technology that it is difficult to clean the conveying blowing pipe, resulting in the inner wall of the conveying blowing pipe being easily accumulated with dust, coal powder or other blowing materials, increasing the risk of blockage, reducing the blowing efficiency, and causing uneven gas distribution inside the blast furnace.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A blowing ring port is equipped with a wind shield device, comprising:

[0007] A blast furnace connecting pipe, the top of which is connected to a delivery injection pipe;

[0008] A stirring mechanism, the stirring mechanism is located inside the conveying injection pipe and is used to stir the pulverized coal;

[0009] A cleaning mechanism is provided, wherein the cleaning mechanism is located on the outer wall of the conveying blow pipe and is used to scrape and clean it. The cleaning mechanism includes a plurality of evenly distributed vents opened on the outer wall of the conveying blow pipe, a scraping assembly and a reset assembly. The scraping assembly is located on the outer wall of the conveying blow pipe and is used to scrape the plurality of vents. The reset assembly is located between the conveying blow pipe and the scraping assembly and is used to reset the scraping assembly.

[0010] Preferably, the scraping assembly includes a movable sleeve arranged on the outer wall of the conveying blowpipe, and a plurality of evenly distributed cleaning sleeves are fixed inside the movable sleeve, and the plurality of cleaning sleeves are matched with the plurality of vents.

[0011] Preferably, the reset assembly includes a fixed sleeve fixed on the top of the conveying blowpipe, a plurality of evenly distributed fixed plates are fixed on the outer wall of the conveying blowpipe, a movable rod is connected between the fixed sleeve and the plurality of fixed plates, the outer walls of the plurality of movable rods are provided with an extension seat, the extension seat is fixed to the movable sleeve, and a plurality of evenly distributed reset springs are connected to the extension seat and the fixed sleeve, and the plurality of reset springs are all sleeved on the outer wall of the movable rod.

[0012] Preferably, the stirring mechanism includes a driving motor arranged inside the conveying blowpipe, the output end of the driving motor is connected to a transmission shaft, a plurality of evenly distributed stirring rods are fixed to the outer wall of the transmission shaft, and the stirring rods cooperate with the vents.

[0013] Preferably, two connecting plates are fixed to the inside of the driving motor and the conveying blowpipe, a reinforcement sleeve is installed at the bottom of the transmission shaft, the reinforcement sleeve is connected to the inside of the conveying blowpipe, a guide plate is fixed to the top of the driving motor, and the top of the connecting plate is provided with an inclined portion that cooperates with the guide plate.

[0014] Preferably, a disassembly mechanism for disassembling and assembling the conveying blow pipe is provided between the blast furnace connecting pipe and the conveying blow pipe, the disassembly mechanism comprises a mounting seat fixed on the top of the blast furnace connecting pipe and a plurality of evenly distributed disassembly blocks fixed on the bottom of the conveying blow pipe, a plurality of disassembly holes for inserting the disassembly blocks are provided on the top of the mounting seat, and a plug-in assembly for plugging the disassembly block is provided between the disassembly block and the disassembly hole.

[0015] Preferably, the plug-in assembly includes a movable groove provided on one side of the disassembly hole and a movable plate installed inside the movable groove, an insertion rod is fixed on one side of the movable plate, the insertion rod is plugged into the disassembly block, an extrusion spring is connected between the movable plate and the movable groove, and a linkage plate is fixed on one side of the movable plate, the linkage plate extends to one side of the mounting seat and is fixed with a control sleeve, an outer wall of the mounting seat is provided with an open groove for the linkage plate to move, and the open groove is communicated with the movable groove.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0017] 1. The utility model is provided with a cleaning mechanism, which can realize scraping cleaning, so that the inner wall of the conveying blowpipe is not easy to accumulate dust, coal powder or other blown objects, reducing the risk of blockage, improving the blowing efficiency, making the gas distribution inside the blast furnace more uniform, avoiding affecting the effective utilization of the reducing agent and the distribution of high-temperature gas, thereby increasing the working efficiency of the blast furnace of the device, and solving the problem of a large amount of matter accumulating inside the conveying blowpipe in the existing device, which increases the workload of the blowing assembly, leads to increased energy consumption and increased operating costs;

[0018] 2. The utility model can realize the rapid disassembly and installation of the conveying blowing pipe through the setting of the disassembly and assembly mechanism, and facilitate the replacement of different conveying blowing pipes, which helps to reduce the downtime caused by maintenance, increases the continuous operation time of the blast furnace, and further improves the production efficiency. At the same time, it makes the blast furnace device more flexible and can adapt to different production needs and the adjustment of the blowing mechanism parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of the delivery blowpipe of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the cleaning mechanism of the utility model;

[0022] Figure 4 This is a structural diagram of the disassembly and assembly mechanism of the utility model;

[0023] Figure 5 It is a cross-sectional view of the mounting seat of the utility model.

[0024] Among them: 1. Blast furnace connecting pipe; 2. Conveying and blowing pipe; 3. Cleaning mechanism; 4. Disassembly and assembly mechanism; 5. Guide plate; 6. Connecting plate; 7. Drive motor; 8. Transmission shaft; 9. Stirring rod; 10. Reinforcement sleeve

[0025] 31. Fixed sleeve; 32. Extension seat; 33. Cleaning sleeve; 34. Return spring; 35. Fixed plate; 36. Movable rod; 37. Movable sleeve;

[0026] 41. Disassembly and assembly block; 42. Control sleeve; 43. Mounting seat; 44. Extrusion spring; 45. Insert rod; 46. Moving plate; 47. Linkage plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Please refer to Figure 1 and Figure 2 , a blowing ring mouth equipped with a wind shield device, comprising:

[0029] A blast furnace connecting pipe 1, the top of which is connected to a delivery blowing pipe 2;

[0030] The stirring mechanism is located inside the conveying blowpipe 2 and is used to stir the coal powder; the stirring mechanism includes a drive motor 7 arranged inside the conveying blowpipe 2, the output end of the drive motor 7 is connected to a transmission shaft 8, and a plurality of evenly distributed stirring rods 9 are fixed to the outer wall of the transmission shaft 8, and the stirring rods 9 cooperate with the vents; two connecting plates 6 are fixed to the inside of the drive motor 7 and the conveying blowpipe 2, a reinforcement sleeve 10 is installed at the bottom of the transmission shaft 8, and the reinforcement sleeve 10 is connected to the inside of the conveying blowpipe 2, a guide plate 5 is fixed to the top of the drive motor 7, and the top of the connecting plate 6 is provided with an inclined portion that cooperates with the guide plate 5.

[0031] The drive motor 7 drives the transmission shaft 8 to rotate, and the rotation of the transmission shaft 8 drives the stirring rod 9 to rotate, so that the coal powder inside the conveying blowing pipe 2 can be fully stirred. The setting of the conveying blowing pipe 2 can block the wind of the blast furnace connecting pipe 1 to avoid the coal powder being blown away.

[0032] Please refer to Figure 2 and Figure 3, cleaning mechanism 3, the cleaning mechanism 3 is located on the outer wall of the conveying blow pipe 2 and is used to scrape and clean it, the cleaning mechanism 3 includes a plurality of evenly distributed vents, a scraping component and a reset component opened on the outer wall of the conveying blow pipe 2, the scraping component is located on the outer wall of the conveying blow pipe 2 and is used to scrape the plurality of vents, the reset component is located between the conveying blow pipe 2 and the scraping component and is used to reset the scraping component, the scraping component includes a movable sleeve 37 arranged on the outer wall of the conveying blow pipe 2, a plurality of evenly distributed cleaning sleeves 33 are fixed inside the movable sleeve 37, and the plurality of cleaning sleeves 33 are matched with the plurality of vents, The reset assembly includes a fixed sleeve 31 fixed on the top of the conveying blow pipe 2, and a plurality of evenly distributed fixed plates 35 are fixed on the outer wall of the conveying blow pipe 2. A movable rod 36 is connected between the fixed sleeve 31 and the plurality of fixed plates 35. The outer wall of the plurality of movable rods 36 is provided with an extension seat 32, and the extension seat 32 is fixed to the movable sleeve 37. The extension seat 32 and the fixed sleeve 31 are connected with a plurality of evenly distributed reset springs 34. The plurality of reset springs 34 are all sleeved on the outer wall of the movable rod 36. The cleaning sleeve 33 is made of soft material and is a common cleaning material on the market. It is mainly used to fill the vents and will not be elaborated here.

[0033] Pulling the movable sleeve 37 drives the cleaning sleeve 33 to move. Through the movement of the cleaning sleeve 33, it is scratched on the outer wall of the vent. By scratching the outer wall of the vent, the cleaning sleeve 33 can clean the vent. By cleaning the vent, the inner wall of the conveying blow pipe 2 will not accumulate a lot of coal powder, and the flow rate of the conveying blow pipe 2 is improved. The movement of the movable sleeve 37 drives the return spring 34 to contract. Through the contraction of the return spring 34, the movable sleeve 37 can move on the outer wall of the conveying blow pipe 2. Then, through the elastic force of the return spring 34, the movable sleeve 37 can drive the cleaning sleeve 33 to move repeatedly on the outer wall of the conveying blow pipe 2, thereby improving the cleaning efficiency of the conveying blow pipe 2.

[0034] Please also refer to Figure 2 、 Figure 4 and Figure 5A disassembly mechanism 4 for disassembling the conveying blowing pipe 2 is provided between the blast furnace connecting pipe 1 and the conveying blowing pipe 2. The disassembly mechanism 4 includes a mounting seat 43 fixed to the top of the blast furnace connecting pipe 1 and a plurality of evenly distributed disassembly blocks 41 fixed to the bottom of the conveying blowing pipe 2. The top of the mounting seat 43 is provided with a plurality of disassembly holes for inserting the disassembly blocks 41. A plug-in assembly for plugging the disassembly block 41 is provided between the disassembly block 41 and the disassembly hole. The plug-in assembly includes a movable groove provided on one side of the disassembly hole and a movable plate 46 installed inside the movable groove. A plug-in rod 45 is fixed on one side of the movable plate 46, and the plug-in rod 45 is plugged into the disassembly block 41. An extrusion spring 44 is connected between the movable plate 46 and the movable groove, and a linkage plate 47 is fixed on one side of the movable plate 46. The linkage plate 47 extends to one side of the mounting seat 43 and is fixed with a control sleeve 42. The outer wall of the mounting seat 43 is provided with an open groove for the linkage plate 47 to move, and the open groove is connected to the movable groove.

[0035] The rotating control sleeve 42 drives the linkage plate 47 to move, and the movement of the linkage plate 47 drives the moving plate 46 to move in the moving groove, and the movement of the moving plate 46 drives the extrusion spring 44 to contract. The contraction of the extrusion spring 44 makes the moving plate 46 drive the insertion rod 45 to move, and the insertion rod 45 is moved to separate it from the disassembly block 41. After the disassembly block 41 and the insertion rod 45 are separated from each other, the mobile mounting seat 43 drives the disassembly block 41 to separate from the disassembly hole, so that the mounting seat 43 can be disassembled, and it can be installed in the same way. By disassembling and installing the mounting seat 43, the conveying blowing pipe 2 can be disassembled and installed synchronously, which is convenient for the user to replace it.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blowing ring is equipped with a wind shield, characterized in that: include: A blast furnace connecting pipe (1), the top of which is connected to a delivery blowing pipe (2); A stirring mechanism, the stirring mechanism being located inside the delivery injection pipe (2) and being used for stirring the pulverized coal; A cleaning mechanism (3) is provided, wherein the cleaning mechanism (3) is located on the outer wall of the delivery blow pipe (2) and is used for scraping and cleaning the delivery blow pipe. The cleaning mechanism (3) comprises a plurality of evenly distributed vents provided on the outer wall of the delivery blow pipe (2), a scraping assembly, and a reset assembly. The scraping assembly is located on the outer wall of the delivery blow pipe (2) and is used for scraping the plurality of vents. The reset assembly is located between the delivery blow pipe (2) and the scraping assembly and is used for resetting the scraping assembly.

2. A wind shield device installed in the blowing ring according to claim 1, characterized in that: The scraping assembly comprises a movable sleeve (37) arranged on the outer wall of the conveying blowing pipe (2), a plurality of evenly distributed cleaning sleeves (33) are fixed inside the movable sleeve (37), and the plurality of cleaning sleeves (33) are matched with the plurality of ventilation openings.

3. The blowing ring port according to claim 2 is equipped with a wind shield, characterized in that: The reset assembly comprises a fixed sleeve (31) fixed on the top of the delivery blowpipe (2); a plurality of evenly distributed fixed plates (35) are fixed on the outer wall of the delivery blowpipe (2); a movable rod (36) is connected between the fixed sleeve (31) and the plurality of fixed plates (35); an extension seat (32) is sleeved on the outer wall of the plurality of movable rods (36); the extension seat (32) is fixed to the movable sleeve (37); and the extension seat (32) and the fixed sleeve (31) are connected to a plurality of evenly distributed reset springs (34); and the plurality of reset springs (34) are sleeved on the outer wall of the movable rod (36).

4. The blowing ring port according to claim 1 is equipped with a wind shield, characterized in that: The stirring mechanism comprises a driving motor (7) arranged inside the conveying blowing pipe (2); the output end of the driving motor (7) is connected to a transmission shaft (8); a plurality of evenly distributed stirring rods (9) are fixed to the outer wall of the transmission shaft (8); and the stirring rods (9) cooperate with the vents.

5. The blowing ring port according to claim 4 is equipped with a wind shield, characterized in that: Two connecting plates (6) are fixed to the inside of the driving motor (7) and the conveying blowpipe (2); a reinforcing sleeve (10) is installed at the bottom of the transmission shaft (8); the reinforcing sleeve (10) is connected to the inside of the conveying blowpipe (2); a guide plate (5) is fixed to the top of the driving motor (7); and an inclined portion is provided on the top of the connecting plate (6) to match the guide plate (5).

6. The wind shield device installed in the blowing ring according to claim 1, characterized in that: A disassembly mechanism (4) for disassembling the transport blowing pipe (2) is provided between the blast furnace connecting pipe (1) and the transport blowing pipe (2). The disassembly mechanism (4) comprises a mounting seat (43) fixed on the top of the blast furnace connecting pipe (1) and a plurality of evenly distributed disassembly blocks (41) fixed on the bottom of the transport blowing pipe (2). The top of the mounting seat (43) is provided with a plurality of disassembly holes for inserting the disassembly blocks (41). A plug-in assembly for plugging the disassembly blocks (41) is provided between the disassembly blocks (41) and the disassembly holes.

7. The wind shielding device installed in the blowing ring according to claim 6, characterized in that: The plug-in assembly comprises a movable groove provided on one side of the disassembly hole and a movable plate (46) installed inside the movable groove, a plug rod (45) is fixed on one side of the movable plate (46), the plug rod (45) is plugged into the disassembly block (41), an extrusion spring (44) is connected between the movable plate (46) and the movable groove, and a linkage plate (47) is fixed on one side of the movable plate (46), the linkage plate (47) extends to one side of the mounting seat (43) and is fixed with a control sleeve (42), an outer wall of the mounting seat (43) is provided with an open groove for the linkage plate (47) to move, and the open groove is connected to the movable groove.

Images