Iron-making blast furnace gravitational dust removal pneumatic conveying device with anti-blocking function

Abstract

The utility model relates to the technical field of dust removal, and discloses an ironmaking blast furnace gravity dust removal pneumatic conveying device with an anti-blocking function, which comprises a dust removal box, a conveying pipe is arranged at the bottom end of the dust removal box, and a discharge pipe is fixedly connected between the conveying pipe and the dust removal box. According to the ironmaking blast furnace gravitational dust removal pneumatic conveying device with the anti-blocking function, a rotating block, a movable groove and a cleaning brush are arranged, and a driving motor drives the rotating block to rotate through a rotating shaft, so that a movable block on one side of the front end of the rotating block slides in the movable groove; the movable frame can drive the cleaning brush to slide up and down on the left side of the filter screen through the mounting rod, the cleaning brush slides up and down on one side of the filter screen so that the filter screen can be cleaned, and the situation that dust blocks the interior of the filter screen and influences dust conveying is prevented; the problems that dust on a filter screen is inconvenient to treat, and the pneumatic conveying efficiency is easily affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology, specifically to a gravity dust removal gas conveying device for ironmaking blast furnaces with anti-clogging function. Background Technology

[0002] Blast furnace ironmaking is a crucial step in modern steel production. Modern blast furnace ironmaking evolved from the ancient vertical furnace ironmaking method. During operation, blast furnaces require dust removal from the generated exhaust gases. Gravity dust removal is an important measure for purifying exhaust gases in environmental protection. Gravity dust removal is the simplest method for separating dust from the airflow. After gravity dust removal, the dust needs to be transported to a unified location for centralized treatment.

[0003] Common gravity dust removal pneumatic conveying devices for blast furnaces still have some problems. For example, when using pneumatic conveying, a filter screen is needed to filter the dust to prevent it from affecting the service life of the exhaust fan. However, the filter pores in the filter screen are easily clogged by dust, making it inconvenient to deal with the dust on the filter screen and easily affecting the pneumatic conveying efficiency.

[0004] Therefore, we propose an anti-clogging blast furnace gravity dust removal gas conveying device to improve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a gravity dust removal and air conveying device for ironmaking blast furnaces with anti-clogging function, so as to solve the problem mentioned in the background art that it is inconvenient to treat the dust on the filter screen and easily affects the air conveying efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gravity dust removal and gas conveying device for ironmaking blast furnaces with anti-clogging function, comprising a dust removal box, a conveying pipe at the bottom of the dust removal box, a discharge pipe fixedly connected between the conveying pipe and the dust removal box, a solenoid valve at the front end of the discharge pipe, a storage rack fixedly connected to the right side of the bottom end of the conveying pipe, a support plate fixedly connected to the top right side of the storage rack, an exhaust fan installed at the top of the support plate, a filter screen provided on the right side inside the conveying pipe, and an anti-clogging structure for easy cleaning of the filter screen provided on the right side of the top end of the conveying pipe;

[0007] The anti-clogging structure includes a rotating block, a drive motor, and a cleaning brush. A housing is fixedly connected to the right side of the top end of the conveying pipe. The drive motor is installed at the rear end inside the housing. A rotating shaft is fixedly connected to the output end of the drive motor. A rotating block is fixedly connected to the front end of the rotating shaft. A movable block is fixedly connected to the right side of the front end of the rotating block. A movable frame is provided at the front end of the rotating block. A movable groove is opened inside the movable frame. A mounting rod is fixedly connected to the bottom end of the movable frame. A cleaning brush is fixedly connected to the bottom end of the mounting rod.

[0008] As a further technical solution of this utility model, the dust collection box is provided with four sets, the front end of the dust collection box is provided with a branch pipe, the branch pipe and the dust collection box are fixedly connected with an air inlet, the left side of the front end of the dust collection box is fixedly connected with an air outlet, the dust collection box is installed with a filter frame, and the filter frame is installed with a filter bag.

[0009] As a further technical solution of this utility model, the inner sides of the housing are provided with limiting grooves, the left and right sides of the movable frame are provided with limiting sliders, the limiting sliders slide inside the limiting grooves, the movable block moves inside the movable groove, and the cleaning brush slides up and down on the left side of the filter screen.

[0010] As a further technical solution of this utility model, the input end of the exhaust fan is fixedly connected to an exhaust pipe, the output end of the exhaust fan is fixedly connected to an exhaust pipe, the left side of the exhaust pipe and the right side of the delivery pipe are respectively fixedly connected to a fixing plate, a sealing ring is provided between the fixing plates, the upper and lower ends of the fixing plate are provided with mounting grooves, the mounting grooves are provided with mounting bolts, and the fixing plate is fixed by mounting bolts and mounting grooves.

[0011] As a further technical solution of this utility model, the storage rack is provided with a storage box inside, a sealing gasket is provided between the front end of the storage box and the storage rack, and a handle is fixedly connected to the front end of the storage box.

[0012] As a further technical solution of this utility model, a sealing plate is provided on the left side of the conveying pipe, and mounting blocks are fixedly connected to the upper and lower ends of the right side of the sealing plate. A connecting frame is fixedly connected to the left side of the upper and lower ends of the conveying pipe. A pull plate is provided at the outer end of the connecting frame. A spring is fixedly connected between the pull plate and the connecting frame. A limit rod is fixedly connected to the middle end of the pull plate. Limit grooves are respectively opened inside the connecting frame and the mounting block. A connecting rod is fixedly connected to the middle end of the front right side of the pull plate. A blocking block is fixedly connected to the right side of the sealing plate. A sealing sleeve is provided on the outside of the blocking block.

[0013] As a further technical solution of this utility model, the blocking block is embedded in the left side of the inside of the conveying pipe, and the sealing sleeve is disposed between the blocking block and the left side of the inside of the conveying pipe.

[0014] As a further technical solution of this utility model, the mounting block is embedded between the connecting frame and the conveying pipe, the limiting rod is embedded inside the limiting groove, and the mounting block is fixed inside the connecting frame through the limiting groove and the limiting rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the gravity dust removal and air conveying device for ironmaking blast furnace with anti-clogging function not only prevents the filter holes on the filter screen from being blocked, making it easy to install the exhaust fan for unified dust treatment, but also makes it easy to clean the inside of the conveying pipe.

[0016] (1) By setting up a rotating block, a movable frame, a drive motor, a rotating shaft, a mounting rod, a movable block, a movable groove, and a cleaning brush, when it is necessary to clean the dust on the filter screen, the drive motor is started. The drive motor drives the rotating block to rotate through the rotating shaft, so that the movable block on one side of the front end of the rotating block slides inside the movable groove. This allows the movable frame to drive the cleaning brush to slide up and down on the left side of the filter screen through the mounting rod. The cleaning brush can clean the filter screen by sliding up and down on one side of the filter screen to prevent dust from clogging inside the filter screen and affecting dust conveying. The limiting slide groove will limit the movable frame through the limiting slider.

[0017] (2) By setting up a storage box, sealing gasket, mounting bolts, fixing plate, sealing ring and mounting groove, align the fixing plate on one side of the exhaust pipe with the limiting groove on one side of the conveying pipe. After the fixing plate is aligned, screw the mounting bolt into the inside of the mounting groove to fix the fixing plate, so that the exhaust fan can be installed on one side of the conveying pipe. The sealing ring between the fixing plates can increase the sealing of the connection. Start the exhaust fan, and the exhaust fan will draw the dust inside the conveying pipe to one side of the filter screen through the exhaust pipe. The dust on the filter screen will fall into the inside of the storage box, thus completing the conveying of dust.

[0018] (3) By setting up a connecting rod, a pull plate, a spring, a plug, a limiting groove, a limiting rod and an installation block, the plug is embedded in the left side of the conveying pipe to seal the left side of the conveying pipe. When it is necessary to clean the inside of the conveying pipe, push the connecting rod. The connecting rod drives the limiting rod to disengage from the inside of the limiting groove through the pull plate, so that the installation block can be unfixed. After the installation block is unfixed, pull the sealing plate to disengage the plug on the right side of the sealing plate from the inside of the conveying pipe, so that it is convenient to open the left side of the conveying pipe to clean the inner wall of the conveying pipe. Attached Figure Description

[0019] Figure 1 This is a frontal cross-sectional view of the present invention.

[0020] Figure 2 This is an enlarged front view of the connecting frame of this utility model;

[0021] Figure 3 This is a side-view magnified structural diagram of the rotating block of this utility model;

[0022] Figure 4 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle.

[0023] In the diagram: 1. Dust collector; 2. Filter rack; 3. Branch pipe; 4. Filter bag; 5. Air outlet; 6. Air inlet; 7. Housing; 8. Rotary block; 9. Movable frame; 10. Exhaust fan; 11. Exhaust pipe; 12. Suction pipe; 13. Support plate; 14. Storage rack; 15. Storage box; 16. Handle; 17. Sealing gasket; 18. Discharge pipe; 19. Solenoid valve; 20. Conveying pipe; 21. Connecting rod; 2 2. Pull plate; 23. Spring; 24. Sealing plate; 25. Block; 26. Sealing sleeve; 27. Limiting groove; 28. Limiting rod; 29. ​​Connecting frame; 30. Mounting block; 31. Drive motor; 32. Rotating shaft; 33. Mounting rod; 34. Movable block; 35. Mounting bolt; 36. Movable groove; 37. Fixing plate; 38. Sealing ring; 39. Mounting groove; 40. Cleaning brush; 41. Filter screen. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides an embodiment of a gravity dust removal and gas conveying device for ironmaking blast furnaces with anti-clogging function, including a dust removal box 1, a conveying pipe 20 at the bottom of the dust removal box 1, a discharge pipe 18 fixedly connected between the conveying pipe 20 and the dust removal box 1, a solenoid valve 19 at the front end of the discharge pipe 18, a storage rack 14 fixedly connected to the right side of the bottom end of the conveying pipe 20, a support plate 13 fixedly connected to the top right side of the storage rack 14, a blower 10 installed at the top of the support plate 13, a filter screen 41 inside the conveying pipe 20 on the right side, and an anti-clogging structure for easy cleaning of the filter screen 41 on the right side of the top end of the conveying pipe 20.

[0026] The anti-clogging structure includes a rotating block 8, a drive motor 31, and a cleaning brush 40. A housing 7 is fixedly connected to the right side of the top end of the conveying pipe 20. The drive motor 31 is installed at the rear end inside the housing 7. A rotating shaft 32 is fixedly connected to the output end of the drive motor 31. A rotating block 8 is fixedly connected to the front end of the rotating shaft 32. A movable block 34 is fixedly connected to the right side of the front end of the rotating block 8. A movable frame 9 is provided at the front end of the rotating block 8. A movable groove 36 is opened inside the movable frame 9. An installation rod 33 is fixedly connected to the bottom end of the movable frame 9. A cleaning brush 40 is fixedly connected to the bottom end of the installation rod 33.

[0027] The dust collector 1 is equipped with four sets of pipes. The front end of the dust collector 1 is equipped with a branch pipe 3. An air inlet 6 is fixedly connected between the branch pipe 3 and the dust collector 1. An air outlet 5 is fixedly connected to the left side of the front end of the dust collector 1. A filter frame 2 is installed inside the dust collector 1. A filter bag 4 is installed on the filter frame 2. Limiting grooves are provided on both sides inside the shell 7. Limiting sliders are provided on the left and right sides of the movable frame 9. The limiting sliders slide inside the limiting grooves. The movable block 34 moves inside the movable groove 36. The cleaning brush 40 slides up and down on the left side of the filter screen 41.

[0028] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, when it is necessary to clean the dust on the filter screen 41, the drive motor 31 is started. The drive motor 31 drives the rotating block 8 to rotate through the rotating shaft 32, so that the movable block 34 on one side of the front end of the rotating block 8 slides inside the movable groove 36. This allows the movable frame 9 to drive the cleaning brush 40 to slide up and down on the left side of the filter screen 41 through the mounting rod 33. The cleaning brush 40 sliding up and down on one side of the filter screen 41 can clean the filter screen 41 and prevent dust from clogging inside the filter screen 41 and affecting dust conveying. The limiting slide groove will limit the movable frame 9 through the limiting slider.

[0029] The input end of the exhaust fan 10 is fixedly connected to the exhaust pipe 12, and the output end of the exhaust fan 10 is fixedly connected to the exhaust pipe 11. The left side of the exhaust pipe 12 and the right side of the conveying pipe 20 are respectively fixedly connected to the fixing plate 37. A sealing ring 38 is provided between the fixing plates 37. The upper and lower ends of the fixing plate 37 are provided with mounting grooves 39. Mounting bolts 35 are provided inside the mounting grooves 39. The fixing plate 37 is fixed by the mounting bolts 35 and the mounting grooves 39. The storage rack 14 is provided with a storage box 15 inside. A sealing gasket 17 is provided between the front end of the storage box 15 and the storage rack 14. A handle 16 is fixedly connected to the front end of the storage box 15.

[0030] Specifically, such as Figure 1 and Figure 4 As shown, align the fixing plate 37 on one side of the exhaust pipe 12 with the limiting groove 27 on one side of the conveying pipe 20. After aligning the fixing plate 37, screw the mounting bolt 35 into the mounting groove 39 to fix the fixing plate 37, so that the exhaust fan 10 is installed on one side of the conveying pipe 20. The sealing ring 38 between the fixing plates 37 can increase the sealing of the connection. Start the exhaust fan 10, and the exhaust fan 10 will draw the dust inside the conveying pipe 20 to one side of the filter screen 41 through the exhaust pipe 12. The dust on the filter screen 41 will fall into the inside of the collection box 15, thus completing the dust conveying.

[0031] A sealing plate 24 is provided on the left side of the conveying pipe 20. Mounting blocks 30 are fixedly connected to the upper and lower ends of the right side of the sealing plate 24. A connecting frame 29 is fixedly connected to the left side of the upper and lower ends of the conveying pipe 20. A pull plate 22 is provided at the outer end of the connecting frame 29. A spring 23 is fixedly connected between the pull plate 22 and the connecting frame 29. A limit rod 28 is fixedly connected to the middle end of the pull plate 22. Limit grooves 27 are respectively opened inside the connecting frame 29 and the mounting block 30. A connecting rod 21 is fixedly connected to the middle end of the front right side of the pull plate 22. A blocking block 25 is fixedly connected to the right side of the sealing plate 24. A sealing sleeve 26 is provided on the outside of the blocking block 25. The blocking block 25 is embedded in the left side of the inside of the conveying pipe 20. The sealing sleeve 26 is located between the blocking block 25 and the left side of the inside of the conveying pipe 20. The mounting block 30 is embedded between the connecting frame 29 and the conveying pipe 20. The limit rod 28 is embedded in the inside of the limit groove 27. The mounting block 30 is fixed inside the connecting frame 29 through the limit groove 27 and the limit rod 28.

[0032] Specifically, such as Figure 1 and Figure 2 As shown, the block 25 is embedded in the left side of the conveying pipe 20 to seal the left side of the conveying pipe 20. When it is necessary to clean the inside of the conveying pipe 20, push the connecting rod 21. The connecting rod 21 drives the limiting rod 28 to disengage from the inside of the limiting groove 27 through the pull plate 22, so that the mounting block 30 can be unfixed. After the mounting block 30 is unfixed, pull the sealing plate 24, so that the block 25 on the right side of the sealing plate 24 disengages from the inside of the conveying pipe 20, thereby facilitating the opening of the left side of the conveying pipe 20 to clean the inner wall of the conveying pipe 20.

[0033] Working Principle: In use, the fixing plate 37 on one side of the extraction pipe 12 is aligned with the limiting groove 27 on one side of the conveying pipe 20. After alignment, the mounting bolts 35 are screwed into the mounting groove 39 to fix the fixing plate 37, allowing the exhaust fan 10 to be installed on one side of the conveying pipe 20. The sealing ring 38 between the fixing plates 37 increases the sealing at the connection. Then, the solenoid valve 19 is opened in batches, activating the exhaust fan 10 during this process. The exhaust fan 10 draws dust that has fallen into the conveying pipe 20 through the extraction pipe 12 to one side of the filter screen 41. The dust on the filter screen 41 falls into the collection box 15, thus completing the dust conveying process. When cleaning the dust on the filter screen 41, the drive motor 31 is activated. The drive motor 31 drives the rotating block 8 to rotate via the rotating shaft 32, causing the movable block 34 on one side of the front end of the rotating block 8 to move. The movable frame 9 slides inside the movable groove 36, allowing the movable frame 9 to move up and down on the left side of the filter screen 41 via the mounting rod 33. The cleaning brush 40 moves up and down on one side of the filter screen 41 to clean it, preventing dust from clogging the inside of the filter screen 41 and affecting dust conveying. The limiting groove limits the movable frame 9 via the limiting slider. The block 25 is embedded in the left side of the conveying pipe 20 to seal the left side of the conveying pipe 20. When it is necessary to clean the inside of the conveying pipe 20, push the connecting rod 21. The connecting rod 21 drives the limiting rod 28 to disengage from the inside of the limiting groove 27 via the pull plate 22, thereby causing the mounting block 30 to lose its fixation. After the mounting block 30 loses its fixation, pull the sealing plate 24, causing the block 25 on the right side of the sealing plate 24 to disengage from the inside of the conveying pipe 20, thus making it easier to open the left side of the conveying pipe 20 to clean the inner wall of the conveying pipe 20.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A gravity dust collection and gas conveying device for ironmaking blast furnaces with anti-clogging function, comprising a dust collection box (1), characterized in that: The bottom end of the dust collection box (1) is provided with a conveying pipe (20), and a discharge pipe (18) is fixedly connected between the conveying pipe (20) and the dust collection box (1). A solenoid valve (19) is provided at the front end of the discharge pipe (18). A storage rack (14) is fixedly connected to the right side of the bottom end of the conveying pipe (20). A support plate (13) is fixedly connected to the top right side of the storage rack (14). A fan (10) is installed at the top of the support plate (13). A filter screen (41) is provided on the right side inside the conveying pipe (20). An anti-clogging structure is provided on the right side of the top end of the conveying pipe (20) to facilitate cleaning of the filter screen (41). The anti-clogging structure includes a rotating block (8), a drive motor (31), and a cleaning brush (40). A housing (7) is fixedly connected to the right side of the top end of the conveying pipe (20). The drive motor (31) is installed at the rear end inside the housing (7). A rotating shaft (32) is fixedly connected to the output end of the drive motor (31). A rotating block (8) is fixedly connected to the front end of the rotating shaft (32). A movable block (34) is fixedly connected to the right side of the front end of the rotating block (8). A movable frame (9) is provided at the front end of the rotating block (8). A movable groove (36) is opened inside the movable frame (9). An installation rod (33) is fixedly connected to the bottom end of the movable frame (9). A cleaning brush (40) is fixedly connected to the bottom end of the installation rod (33).

2. The blast furnace gravity dust collection and gas conveying device with anti-clogging function according to claim 1, characterized in that: The dust collector (1) is provided with four sets of pipes. The front end of the dust collector (1) is provided with a branch pipe (3). An air inlet (6) is fixedly connected between the branch pipe (3) and the dust collector (1). An air outlet (5) is fixedly connected to the left side of the front end of the dust collector (1). A filter frame (2) is installed inside the dust collector (1). A filter bag (4) is installed on the filter frame (2).

3. The blast furnace gravity dust collection and gas conveying device with anti-clogging function according to claim 1, characterized in that: The housing (7) has limit grooves on both sides inside, and the movable frame (9) has limit sliders on both sides. The limit sliders slide inside the limit grooves, the movable block (34) moves inside the movable groove (36), and the cleaning brush (40) slides up and down on the left side of the filter screen (41).

4. The blast furnace gravity dust collection and gas conveying device with anti-clogging function according to claim 1, characterized in that: The input end of the exhaust fan (10) is fixedly connected to an exhaust pipe (12), and the output end of the exhaust fan (10) is fixedly connected to an exhaust pipe (11). The left side of the exhaust pipe (12) and the right side of the delivery pipe (20) are respectively fixedly connected to a fixing plate (37). A sealing ring (38) is provided between the fixing plates (37). The upper and lower ends of the fixing plate (37) are provided with mounting grooves (39). The mounting grooves (39) are provided with mounting bolts (35). The fixing plate (37) is fixed by the mounting bolts (35) and the mounting grooves (39).

5. A gravity dust collection and gas conveying device for ironmaking blast furnaces with anti-clogging function according to claim 4, characterized in that: The storage rack (14) has a storage box (15) inside. A sealing gasket (17) is provided between the front end of the storage box (15) and the storage rack (14). A handle (16) is fixedly connected to the front end of the storage box (15).

6. The blast furnace gravity dust collection and gas conveying device with anti-clogging function according to claim 1, characterized in that: A sealing plate (24) is provided on the left side of the conveying pipe (20). Mounting blocks (30) are fixedly connected to the upper and lower ends of the right side of the sealing plate (24). A connecting frame (29) is fixedly connected to the left side of the upper and lower ends of the conveying pipe (20). A pull plate (22) is provided at the outer end of the connecting frame (29). A spring (23) is fixedly connected between the pull plate (22) and the connecting frame (29). A limit rod (28) is fixedly connected at the middle end of the pull plate (22). Limit grooves (27) are respectively opened inside the connecting frame (29) and the mounting block (30). A connecting rod (21) is fixedly connected at the middle end of the front right side of the pull plate (22). A blocking block (25) is fixedly connected to the right side of the sealing plate (24). A sealing sleeve (26) is provided on the outside of the blocking block (25).

7. A gravity dust collection and gas conveying device for ironmaking blast furnaces with anti-clogging function according to claim 6, characterized in that: The plug (25) is embedded in the left side of the inside of the delivery pipe (20), and the sealing sleeve (26) is disposed between the plug (25) and the left side of the inside of the delivery pipe (20).

8. A gravity dust collection and gas conveying device for ironmaking blast furnaces with anti-clogging function according to claim 6, characterized in that: The mounting block (30) is embedded between the connecting frame (29) and the conveying pipe (20), and the limiting rod (28) is embedded inside the limiting groove (27). The mounting block (30) is fixed inside the connecting frame (29) by the limiting groove (27) and the limiting rod (28).

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