Dust removal device for steelmaking converter

Abstract

The utility model relates to the technical field of dust removal devices, and discloses a steelmaking converter dust removal device which comprises a shell, an installation frame is fixedly connected to the inner wall of the shell, an installation opening is formed in one side of the shell in a penetrating mode, a plurality of installation cavities are formed in the side, close to the installation opening, of the installation frame in a penetrating mode, and one side of each installation cavity is connected with an air closing valve. A plurality of air outlets and a plurality of air inlets are formed in the upper sides and the lower sides of the mounting cavities in a penetrating mode, sliding grooves are formed in the side walls of the upper ends and the lower ends of the mounting cavities, air sealing plates are slidably connected between every two adjacent sliding grooves at the same time, and a plurality of ventilation openings are formed in the sides, close to the air outlets, of the air sealing plates in a penetrating mode; and control rods are fixedly connected to the sides, away from the air closing valves, of the multiple air sealing plates correspondingly, and bag-type dust removers are connected into the multiple mounting cavities correspondingly. According to the dust removal device for the steelmaking converter, the bag-type dust removers in the corresponding mounting cavities can be independently taken out and replaced by opening and closing the air closing valves, so that the overall flue gas dust removal efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal devices, in particular to a dust removal device for a steelmaking converter. Background Art

[0002] Converter steelmaking uses molten iron, scrap steel, and ferroalloys as the main raw materials. It does not rely on external energy sources, but relies on the physical heat of the molten iron itself and the heat generated by the chemical reaction between the components of the molten iron to complete the steelmaking process in the converter. At present, a large amount of flue gas is generated in the converter steelmaking process. If the flue gas is directly discharged into the air, it will cause air pollution. For this reason, it is usually necessary to use a bag filter to filter and purify the discharged flue gas. After the bag filter in the prior art is used, the thick dust accumulated on the surface of the bag is easy to affect the dust removal effect, and it needs to be manually shaken regularly, which brings inconvenience to the workers.

[0003] For example, the patent with publication number CN216935123U discloses a high-efficiency and low-pollution steel mill converter dust removal device, which includes a support frame, a bag dust collector is installed inside the support frame, an air inlet and an air outlet are respectively opened on both sides of the bag dust collector, a bag body is installed inside the bag dust collector, a bag frame is installed on the outer surface of the bag body, and a moving plate is slidably connected inside the bag dust collector. By rotating the rotating rod, the rotating rod drives the push plate to contact the connecting plate installed on the lower surface of the moving plate, thereby driving the moving plate to move, so that the moving plate constantly collides with the bag body, causing the dust adhered to the side wall of the bag body to fall out of the inside of the bag body under the impact, reducing the accumulation of dust on the side wall of the bag body.

[0004] However, the steelmaking converter dust removal device in the above technology still has the following problems:

[0005] Although the dust attached to the side wall of the bag can be removed by the continuous collision between the moving plate and the bag body, the bag will be worn and eventually damaged during the continuous collision. At this time, it is necessary to stop the emission of flue gas and replace the internal dust removal bag, which delays the dust removal efficiency of the flue gas. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a steelmaking converter dust removal device, such as being able to replace part of the dust removal bags while maintaining flue gas emission, thereby improving the dust removal efficiency of the flue gas.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steelmaking converter dust removal device, comprising a shell, the inner wall of the shell is fixedly connected to a mounting frame, one side of the shell is penetrated with a mounting opening, the mounting opening is matched with the mounting frame, a side of the mounting frame close to the mounting opening is penetrated with a plurality of mounting cavities, one side of the plurality of mounting cavities is connected to a closed air door, the plurality of closed air doors are located in the mounting opening, one side of the plurality of closed air doors is fixedly connected to a hinge, the other side is connected to a locking door assembly, the side of the plurality of hinges away from the closed air door is fixedly connected to the outer wall of the shell, the plurality of mounting cavities A plurality of air outlets and air inlets are respectively provided on the upper and lower sides, slide grooves are provided on the side walls at the upper and lower ends of the installation cavity, and sealing plates are slidably connected between two adjacent slide grooves at the same time, a plurality of air vents are provided on the side of the air sealing plates close to the air outlet, and the plurality of air vents are respectively matched with the adjacent air outlets or air inlets, a plurality of air sealing plates are fixedly connected with control rods on the side away from the air closing door, and the other ends of the plurality of control rods pass through the shell and are slidably connected to the shell, a plurality of installation cavities are connected with bag dust collectors, and the plurality of bag dust collectors are respectively located between two adjacent air sealing plates.

[0008] Furthermore, the door lock assembly includes a lock shell and a lock plug, the lock shell is fixedly connected to the shell, the outer wall of the lock plug is slidably connected to the inner wall of the lock shell, an unlocking hole is penetrated through the side of the lock shell away from the shell, the outer wall of the lock plug close to the shell is slidably connected to the outer wall of the air-closing door away from the hinge, an unlocking rod is fixedly connected to the end of the lock plug close to the lock shell, and the other end of the unlocking rod penetrates the unlocking hole and is slidably connected to the unlocking hole.

[0009] Furthermore, a compression spring is fixedly connected to an inner wall of one side of the lock housing close to the lock plug, and the other end of the compression spring is fixedly connected to the lock plug.

[0010] Furthermore, the locking plug has a bevel design on one end close to the air-locking valve and away from the housing.

[0011] Furthermore, the bag dust collector includes a mounting frame and a plurality of dust bags, and the inner walls on both sides of the mounting cavity near one end of the plurality of air outlets are fixedly connected with mounting slide rails, and mounting grooves are provided on both sides of the mounting frame, and the two mounting slide rails are respectively slidably connected to the two mounting grooves, and the plurality of dust bags are fixedly connected and connected to the side of the mounting frame away from the air outlet, and the side of the mounting frame away from the plurality of dust bags is connected to the adjacent air outlet, and the two sides of the mounting frame are respectively against the inner wall of the shell and the inner wall of the air closing door.

[0012] Furthermore, two adjacent control rods are simultaneously fixedly connected with a pull rod on one side away from the air sealing plate.

[0013] Furthermore, a plurality of return springs are fixedly connected to one side of the pull rod close to the shell, the other ends of the plurality of return springs are fixedly connected to the shell, a limit rod is fixedly connected to one side of the shell close to the pull rod, one side of the limit rod is slidably connected to the pull rod, and a limit block is fixedly connected to one side of the limit rod close to the pull rod.

[0014] Furthermore, the limiting rod is located at the middle section of the pull rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] This steelmaking converter dust removal device can take out and replace the bag dust collector in the corresponding installation cavity separately by opening and closing the air-closing valve, while the bag dust collectors in the other installation cavities continue to remove flue gas dust, thereby improving the overall flue gas dust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall appearance connection structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure of another aspect of the utility model;

[0019] Figure 3 Based on Figure 1 A schematic diagram of another appearance connection structure of;

[0020] Figure 4 This is a schematic diagram of the overall appearance and connection structure of the installation frame of the utility model;

[0021] Figure 5 This is a schematic diagram of the overall appearance and connection structure of the air sealing plate of the utility model;

[0022] Figure 6 This is a schematic diagram of the overall appearance and connection structure of the bag dust collector of the utility model;

[0023] Figure 7 It is a schematic diagram of the overall appearance and connection structure of the door lock assembly of the utility model.

[0024] In the figure: 1. Shell; 2. Mounting frame; 3. Air-closing door; 4. Hinge; 5. Air sealing plate; 6. Control lever; 7. Bag filter; 8. Lock shell; 9. Lock plug; 10. Unlocking lever; 11. Extrusion spring; 12. Mounting frame; 13. Dust bag; 14. Mounting rail; 15. Pull rod; 16. Return spring; 17. Limit rod; 18. Limit block; 101. Mounting port; 201. Mounting cavity; 202. Air outlet; 203. Air inlet; 204. Slide; 501. Vent; 701. Mounting slot; 801. Unlocking hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1 - Figure 7 A steelmaking converter dust removal device comprises a shell 1, wherein the inner wall of the shell 1 is fixedly connected with a mounting frame 2, a mounting opening 101 is penetrated through one side of the shell 1, and the mounting opening 101 is matched with the mounting frame 2, a side of the mounting frame 2 close to the mounting opening 101 is penetrated with a plurality of mounting cavities 201, one side of the plurality of mounting cavities 201 is connected with a closed door 3, the plurality of closed doors 3 are located in the mounting opening 101, one side of the plurality of closed doors 3 is fixedly connected with a hinge 4, and the other side is connected with a locking door assembly, the side of the plurality of hinges 4 away from the closed door 3 is fixedly connected with the outer wall of the shell 1, and the upper and lower sides of the plurality of mounting cavities 201 are penetrated with a plurality of air outlets. Port 202 and several air inlets 203, the side walls of the upper and lower ends of the installation cavity 201 are provided with sliding grooves 204, and an air sealing plate 5 is slidably connected between two adjacent sliding grooves 204. Several air sealing plates 5 are penetrated and opened on one side close to the air outlet 202, and several air vents 501 are respectively matched with the adjacent air outlet 202 or air inlet 203. Several air sealing plates 5 are fixedly connected with control rods 6 on the side away from the air closing door 3, and the other ends of several control rods 6 pass through the shell body 1 and are slidably connected to the shell body 1. Several installation cavities 201 are connected with bag dust collectors 7, and several bag dust collectors 7 are respectively located between two adjacent air sealing plates 5.

[0027] like Figure 1 - Figure 7 As shown, a steelmaking converter dust removal device in the utility model is similar in structure to the existing steelmaking converter dust removal device, such as a high-efficiency and low-pollution steelmaking converter dust removal device disclosed in the patent with publication number CN216935123U. The main improvement of the utility model is that workers can replace part of the bag dust collector 7 separately while maintaining the normal operation of the dust removal device, thereby improving the overall flue gas dust removal efficiency, such as Figures 1 to 7As shown, when the steelmaking converter dust removal device in the utility model is in use, the two air sealing plates 5 in the same installation cavity 201 can be pulled and displaced by the control rod 6, so that the air vent 501 on the air sealing plate 5 and the air inlet 203 or the air outlet 202 are mutually offset, thereby blocking the air inlet 203 and the air outlet 202, so that the installation cavity 201 is isolated from the cavity in the shell 1 to form an independent space. At this time, the corresponding air closing door 3 can be opened by the hinge 4 to expose the inner installation cavity 201, and then the bag dust collector 7 can be taken out and inspected. If the bag is damaged, it can be replaced, and then the good bag-type dust collector 7 can be installed back into the installation cavity 201, and the air-locking door 3 can be closed. Then, the control rod 6 can be used to pull the upper and lower air sealing plates 5 back to their original positions, so that the air vent 501 is connected with the air inlet 203 and the air outlet 202, so that the flue gas can smoothly enter the installation cavity 201, and be filtered by the bag-type dust collector 7 and discharged upward from the shell 1 from the air outlet 202. During this period, other installation cavities 201 can continue to filter the smoke, thereby improving the overall smoke removal efficiency.

[0028] like Figure 1 and Figure 7 As shown, the door lock assembly includes a lock shell 8 and a lock plug 9, the lock shell 8 is fixedly connected to the housing 1, the outer wall of the lock plug 9 is slidably connected to the inner wall of the lock shell 8, the lock shell 8 is provided with an unlocking hole 801 on the side away from the housing 1, the outer wall of the lock plug 9 on the side close to the housing 1 is slidably connected to the outer wall of the air-blocking door 3 on the end away from the hinge 4, the end of the lock plug 9 close to the lock shell 8 is fixedly connected to an unlocking rod 10, the other end of the unlocking rod 10 penetrates the unlocking hole 801 and is slidably connected to the unlocking hole 801. When the door lock assembly is used, the unlocking rod 10 slides up and down in the unlocking hole 801, thereby driving the lock plug 9 to move in the lock shell 8, and cooperates with the lock shell 8 to block the air-blocking door 3 in the installation opening 101 or open it from the installation opening 101 through the hinge 4.

[0029] like Figure 7 As shown, a compression spring 11 is fixedly connected to the inner wall of the lock housing 8 near the lock plug 9, and the other end of the compression spring 11 is fixedly connected to the lock plug 9. The compression spring 11 can provide a compression force to the lock plug 9, so as to prevent the lock plug 9 from moving in the lock housing 8 when the housing 1 vibrates, causing the air-locking door 3 to open automatically, thereby improving the firmness and stability of the overall structure of the lock door assembly.

[0030] like Figure 1 and Figure 7 As shown, the lock plug 9 is designed with an inclined surface at one end close to the air-blocking door 3 and away from the housing 1. When the opened air-blocking door 3 needs to be closed, the air-blocking door 3 only needs to be pressed into the installation opening 101, and the air-blocking door 3 contacts the inclined surface of the lock plug 9, thereby pressing and moving the lock plug 9 into the lock housing 8 to achieve the purpose of automatic door locking.

[0031] like Figure 3 - Figure 6 As shown, the bag dust collector 7 includes a mounting frame 12 and a plurality of dust bags 13, the inner walls on both sides of the mounting cavity 201 close to one end of the plurality of air outlets 202 are fixedly connected with mounting rails 14, mounting grooves 701 are provided on both sides of the mounting frame 12, two mounting rails 14 are slidably connected to the two mounting grooves 701 respectively, a plurality of dust bags 13 are fixedly connected and communicated with a side of the mounting frame 12 away from the air outlet 202, a side of the mounting frame 12 away from the plurality of dust bags 13 is communicated with the adjacent air outlet 202, and both sides of the mounting frame 12 are respectively against the inner wall of the shell 1 and the inner wall of the air closing door 3. When installing the bag filter 7, the mounting frame 12 is smoothly installed in the mounting cavity 201 through the connection between the two mounting grooves 701 and the two mounting slide rails 14. At the same time, the two ends of the mounting frame 12 are abutted against the shell 1 and the air-closing door 3, so that the spaces above and below the mounting frame 12 are isolated from each other, so that the smoke can be filtered by the dust bag 13 and then pass through the mounting frame 12, and then flow into the upper air outlet 202 and out of the shell 1.

[0032] like Figure 2 and Figure 5 As shown, two adjacent control rods 6 are fixedly connected to the side away from the air sealing plate 5 with a pull rod 15. By connecting the pull rod 15 between the two control rods 6 in the same installation cavity 201, it is convenient to control the movement of the two air sealing plates 5 at the same time.

[0033] like Figure 2 and Figure 5 As shown, a plurality of return springs 16 are fixedly connected to one side of the pull rod 15 close to the shell 1, and the other ends of the plurality of return springs 16 are fixedly connected to the shell 1. A limiting rod 17 is fixedly connected to one side of the shell 1 close to the pull rod 15, and one side of the limiting rod 17 is slidably connected to the pull rod 15. A limiting block 18 is fixedly connected to one side of the limiting rod 17 close to the pull rod 15. When the pull rod 15 is used to pull the two air sealing plates 5 in the installation cavity 201 at the same time and the entire installation cavity 201 is isolated from the interior of the shell 1, the pull rod 15 is stuck on the limit block 18 to prevent the air sealing plate 5 from returning to its original position, resulting in the installation cavity 201 being connected to the internal space of the shell 1 during the replacement of the bag-type dust collector 7, thereby improving the stability of the bag-type dust collector 7 during replacement and inspection. After the inspection or replacement of the bag-type dust collector 7 is completed, the air-closing door 3 is closed, and then the limit rod 17 is pushed to one side to disengage the limit block 18 from the pull rod 15. At this time, the reset spring 16 can drive the pull rod 15 to return to its original position, thereby returning the upper and lower air sealing plates 5 to their original positions at the same time, so that the installation cavity 201 is connected to the interior of the shell 1, thereby performing the dust removal operation of the flue gas, which is more convenient to use.

[0034] like Figure 2 and Figure 5 As shown, the limit rod 17 is located in the middle of the pull rod 15. The limit rod 17 is arranged in the middle of the pull rod 15, so that the upper and lower ends of the pull rod 15 are evenly stressed, and the movement synchronization rate of the air sealing plates 5 at both ends of the pull rod 15 is further improved.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A steelmaking converter dust removal device, comprising a housing (1), characterized in that: The inner wall of the shell (1) is fixedly connected to a mounting frame (2); a mounting opening (101) is provided through one side of the shell (1); the mounting opening (101) and the mounting frame (2) are matched; a plurality of mounting cavities (201) are provided through one side of the mounting frame (2) close to the mounting opening (101); one side of each of the plurality of mounting cavities (201) is connected to an air-blocking door (3); each of the plurality of air-blocking doors (3) is located in the mounting opening (101); one side of each of the plurality of air-blocking doors (3) is fixedly connected to a hinge (4); the other side of each of the plurality of air-blocking doors (3) is fixedly connected to an outer wall of the shell (1); and upper and lower sides of each of the plurality of mounting cavities (201) are respectively provided with a plurality of air outlets (202) and a plurality of air inlets. (203), the side walls at the upper and lower ends of the installation cavity (201) are provided with sliding grooves (204), and an air sealing plate (5) is slidably connected between two adjacent sliding grooves (204). Several air sealing plates (5) are provided with several vents (501) on the side close to the air outlet (202), and the several vents (501) are respectively matched with the adjacent air outlet (202) or air inlet (203). Several air sealing plates (5) are fixedly connected with control rods (6) on the side away from the air closing door (3), and the other ends of several control rods (6) pass through the shell (1) and are slidably connected with the shell (1), and several installation cavities (201) are connected with bag dust collectors (7), and several bag dust collectors (7) are respectively located between two adjacent air sealing plates (5).

2. A steelmaking converter dust removal device according to claim 1, characterized in that: The door lock assembly comprises a lock shell (8) and a lock plug (9), the lock shell (8) being fixedly connected to the shell (1), the outer wall of the lock plug (9) being slidably connected to the inner wall of the lock shell (8), a lock opening hole (801) being penetrated through a side of the lock shell (8) away from the shell (1), the outer wall of the lock plug (9) on a side close to the shell (1) being slidably connected to an outer wall of an end of the air-blocking door (3) away from the hinge (4), an unlocking rod (10) being fixedly connected to one end of the lock plug (9) close to the lock shell (8), the other end of the unlocking rod (10) being penetrated through the unlocking hole (801) and being slidably connected to the unlocking hole (801).

3. A steelmaking converter dust removal device according to claim 2, characterized in that: A pressing spring (11) is fixedly connected to the inner wall of one side of the lock housing (8) close to the lock plug (9), and the other end of the pressing spring (11) is fixedly connected to the lock plug (9).

4. A steelmaking converter dust removal device according to claim 2 or 3, characterized in that: The locking plug (9) is designed with an inclined surface at one end close to the air-locking valve (3) and away from the housing (1).

5. A steelmaking converter dust removal device according to claim 1, 2 or 3, characterized in that: The bag dust collector (7) comprises a mounting frame (12) and a plurality of dust removal bags (13); the inner walls on both sides of the mounting cavity (201) close to one end of the plurality of air outlets (202) are fixedly connected with mounting slide rails (14); mounting grooves (701) are provided on both sides of the mounting frame (12); two mounting slide rails (14) are respectively slidably connected to the two mounting grooves (701); the plurality of dust removal bags (13) are fixedly connected and communicated with a side of the mounting frame (12) away from the air outlet (202); the side of the mounting frame (12) away from the plurality of dust removal bags (13) is communicated with an adjacent air outlet (202); and the two sides of the mounting frame (12) are respectively against the inner wall of the shell (1) and the inner wall of the air-closing door (3).

6. A steelmaking converter dust removal device according to claim 1, 2 or 3, characterized in that: The sides of two adjacent control rods (6) away from the air sealing plate (5) are simultaneously fixedly connected with a pull rod (15).

7. A steelmaking converter dust removal device according to claim 6, characterized in that: A plurality of return springs (16) are fixedly connected to one side of the pull rod (15) close to the housing (1); the other ends of the plurality of return springs (16) are fixedly connected to the housing (1); a limiting rod (17) is fixedly connected to one side of the housing (1) close to the pull rod (15); one side of the limiting rod (17) is slidably connected to the pull rod (15); and a limiting block (18) is fixedly connected to one side of the limiting rod (17) close to the pull rod (15).

8. A steelmaking converter dust removal device according to claim 7, characterized in that: The limiting rod (17) is located in the middle of the pull rod (15).

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