Bag collector for steel smelting

Abstract

The utility model discloses a cloth bag dust collector for steel smelting, and aims to solve the problems that the cleaning form is single, dust on a dust filtering bag cannot be completely cleaned, and when the humidity of treated flue gas is relatively high, the dust is easy to adhere to cloth and is not easy to blow off by a pulse blowing pipe. According to the technical scheme, the cloth bag dust collector for steel smelting is characterized by comprising a shell, a partition plate is arranged at the upper end of the interior of the shell, an air inlet pipe is communicated with the portion, below the partition plate, of one side of the shell, an air outlet pipe is communicated with the portion, above the partition plate, of the other side of the shell, a slag discharging pipe is communicated with the bottom of the shell, and a plurality of mounting frames are evenly arranged on the partition plate; and dust filtering bags are fixedly arranged outside the mounting frames in a sleeving manner. According to the cloth bag dust collector for steel smelting, two modes of pulse blowing and mechanical scrubbing are combined, so that dust on the dust filtering bag can be more effectively removed, particularly for a gas environment with higher humidity, dust adhesion is reduced, and the cleaning effect and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bag dust collectors, and more particularly to a bag dust collector for steel smelting. Background Art

[0002] A large amount of dust is generated during the steel smelting process. If this dust is discharged directly into the atmosphere without being treated, it will cause serious pollution to the environment. The bag dust collector can effectively capture and remove particulate matter in the smoke and dust through its efficient filtering function, thereby significantly reducing the emission of smoke and dust. The flue gas flows from the inlet to the bag dust collector, and the flue gas flows from the outside of the dust filter bag to the inside. The dust in the flue gas either settles directly or is filtered on the outer surface of the dust filter bag. As the flue gas is continuously filtered, the dust particles outside the dust filter bag accumulate thicker and thicker, and the air resistance becomes greater and greater. In order to keep the pressure of the bag dust collector at a reasonable level, the dust filter bag needs to be cleaned regularly.

[0003] Existing cleaning methods often involve injecting compressed air into the dust filter bag through a pulse jet pipe above the dust filter bag, flushing away dust particles accumulated on the bag's outer surface. However, using a pulse jet pipe to clean dust from the dust filter bag is a single cleaning method and cannot completely remove dust from the dust filter bag. For example, when the flue gas is humid, dust easily adheres to the cloth and is not easily blown off by the pulse jet pipe. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the purpose of this utility model is to provide a bag dust collector for steel smelting. By combining pulse blowing and mechanical brushing, the dust on the dust filter bag can be more effectively removed, especially for gas environments with high humidity, thereby reducing dust adhesion and improving the cleaning effect and efficiency.

[0005] The above technical objectives of the present utility model are achieved through the following technical solutions: a bag dust collector for steel smelting, comprising a shell, a partition is provided at the upper end of the interior of the shell, an air inlet pipe is connected to one side of the shell below the partition, an air outlet pipe is connected to the other side of the shell above the partition, a slag discharge pipe is connected to the bottom of the shell, a plurality of fixing frames are evenly provided on the partition, a dust filter bag is fixedly sleeved on the outside of the plurality of fixing frames, and a pulse jet pipe opening toward the top of the dust filter bag is provided above the partition;

[0006] A movable seat is symmetrically provided on both sides of the interior of the shell, a first screw rod is threadedly passed through one end of the movable seat, and a first slide rod is slidably passed through the other end of the movable seat, the lower ends of the first screw rod and the first slide rod are connected to the inner wall of the shell, the upper ends of the first screw rod and the first slide rod are connected to the partition, and the partition is provided with a first motor that drives the first screw rod to rotate;

[0007] A plurality of first mounting brackets and a plurality of second mounting brackets are provided in parallel in the housing, and a plurality of first semi-annular brushes and a plurality of second semi-annular brushes are provided on the first mounting bracket and the second mounting bracket, respectively. The first semi-annular brushes and the second semi-annular brushes are positioned on both sides of the dust filter bag in pairs for cooperation.

[0008] The 3rd screw rod is threadedly passed through one side of the several first mounting brackets, and the second sliding rod is slidably passed through the other side of the several first mounting brackets, and the second through hole is respectively opened on the second mounting bracket for the second screw rod and the second sliding rod to pass through, and the diameter of the first through hole is larger than the diameter of the second screw rod and the second sliding rod, and the third through hole is respectively opened on the first mounting bracket for the third screw rod and the third sliding rod to pass through, and the diameter of the second through hole is larger than the diameter of the third screw rod and the third sliding rod, and the two ends of the second screw rod, the third screw rod, the second sliding rod and the third sliding rod are respectively connected to the two moving seats, and the two moving seats are respectively provided with a second motor that drives the second screw rod and the third screw rod to rotate.

[0009] The present invention is further configured as follows: a vertically downward limiting rod is provided at the bottom of the partition, and the limiting rod is used to resist the moving seat.

[0010] The utility model is further configured as follows: the first screw rod, the second screw rod and the third screw rod are all sleeved with dustproof telescopic covers.

[0011] The present invention is further configured as follows: the second screw rod and the second slide rod are diagonally arranged on the first mounting frame, and the third screw rod and the third slide rod are diagonally arranged on the second mounting frame.

[0012] The present invention is further configured as follows: a plurality of limit blocks are sleeved on the second slide bar and the third slide bar, and the limit blocks are used to abut against the first mounting bracket and the second mounting bracket to limit the maximum displacement distance of the two.

[0013] In summary, the present invention has the following beneficial effects:

[0014] By combining pulse jetting and mechanical brushing, dust on the dust filter bag can be removed more effectively, especially in a gas environment with high humidity, reducing dust adhesion and improving the cleaning effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the bag dust collector of the present utility model;

[0016] Figure 2It is a top view schematic diagram of the movable base, the first screw rod, the first sliding rod, the first mounting bracket and the second mounting bracket of the utility model;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the second screw rod, the second sliding rod, the third screw rod and the third sliding rod of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the dustproof telescopic cover of the utility model.

[0019] In the figure: 1. Shell; 2. Partition; 3. Air inlet pipe; 4. Air outlet pipe; 5. Slag discharge pipe; 6. Dust filter bag; 7. Pulse jet pipe; 8. Moving seat; 9. First screw rod; 10. First slide rod; 11. First mounting bracket; 12. Second mounting bracket; 13. First semi-annular brush; 14. Second semi-annular brush; 15. Second screw rod; 16. Second slide rod; 17. Third screw rod; 18. Third slide rod; 19. Limit rod; 20. Dust-proof telescopic cover; 21. Limit block. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, unless there is a conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "sleeved / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood by those skilled in the art in specific circumstances.

[0023] The present invention is described in detail below with reference to the accompanying drawings.

[0024] Reference Figure 1-Figure 3A bag dust collector for steel smelting includes a shell 1, a partition 2 is fixedly provided at the upper end of the interior of the shell 1, an air inlet pipe 3 is connected to the bottom of the shell 1 below the partition 2, and an air outlet pipe 4 is connected to the top of the partition 2 on the other side of the shell 1. A slag discharge pipe 5 is connected to the bottom of the shell 1, a plurality of fixing frames are evenly fixed on the partition 2, and a dust filter bag 6 is fixedly sleeved on the outside of the plurality of fixing frames. A pulse blowing pipe 7 is fixedly installed above the partition 2 and opens toward the top of the dust filter bag 6;

[0025] A movable seat 8 is symmetrically provided on both sides of the interior of the shell 1, one end of the movable seat 8 is threaded with a first screw rod 9, and the other end of the movable seat 8 is slidably penetrated by a first slide rod 10, the lower ends of the first screw rod 9 and the first slide rod 10 are connected to the inner wall of the shell 1, and the upper ends of the first screw rod 9 and the first slide rod 10 are connected to the partition 2. Specifically, the lower end of the first screw rod 9 is rotatably connected to the inner wall of the shell 1, the lower end of the first slide rod 10 is fixedly connected to the inner wall of the shell 1, the upper end of the first screw rod 9 is rotatably connected to the partition 2, the upper end of the first slide rod 10 is fixedly connected to the partition 2, and a first motor that drives the first screw rod 9 to rotate is fixedly provided on the partition 2;

[0026] A plurality of parallel first mounting frames 11 and a plurality of parallel second mounting frames 12 are provided in the housing 1. A plurality of first semi-annular brushes 13 and a plurality of second semi-annular brushes 14 are fixed to the first mounting frames 11 and the second mounting frames 12, respectively. The first semi-annular brushes 13 and the second semi-annular brushes 14 are positioned on both sides of the dust filter bag 6 in pairs for cooperation.

[0027] A second screw rod 15 is threaded through one side of the plurality of first mounting frames 11, and a second slide rod 16 is slidably penetrated through the other side of the plurality of first mounting frames 11. A first through hole for the second screw rod 15 and the second slide rod 16 to pass through is respectively opened on the second mounting frame 12. The diameter of the first through hole is larger than the diameter of the second screw rod 15 and the second slide rod 16. A third screw rod 17 is threaded through one side of the plurality of second mounting frames 12, and a third slide rod 18 is slidably penetrated through the other side of the plurality of second mounting frames 12. A second through hole is provided for the third screw rod 17 and the third slide rod 18 to pass through. The diameter of the second through hole is larger than the diameter of the third screw rod 17 and the third slide rod 18. The two ends of the second screw rod 15, the third screw rod 17, the second slide rod 16 and the third slide rod 18 are respectively connected to the two movable seats 8. Specifically, the second slide rod 16 and the third slide rod 18 are fixedly connected to the movable seat 8, and the second screw rod 15 and the third screw rod 17 are rotatably connected to the movable seat 8, and the two movable seats 8 are respectively fixed with second motors that drive the second screw rod 15 and the third screw rod 17 to rotate.

[0028] Additionally, a vertically downward limiting rod 19 is fixed to the bottom of the partition 2. The limiting rod 19 is used to resist the moving seat 8. When the moving seat 8 rises to the highest point, the limiting rod 19 will resist the moving seat 8 to prevent the moving seat 8 and the parts that move with the moving seat 8 from continuing to rise and hitting the partition 2.

[0029] Reference Figure 4 The first screw rod 9, the second screw rod 15 and the third screw rod 17 are all provided with a dustproof telescopic cover 20. Specifically, on the first screw rod 9, a dustproof telescopic cover 20 is provided between the movable seat 8 and the partition 2 for telescopic protection, and a dustproof telescopic cover 20 is provided between the movable seat 8 and the bottom inner wall of the shell 1 for telescopic protection. On the second screw rod 15 and the third screw rod 17, a dustproof telescopic cover 20 is provided between the movable seat 8 and the adjacent first mounting bracket 11 / second mounting bracket 12 for telescopic protection, and a dustproof telescopic cover 20 is provided between the adjacent first mounting bracket 11 and the second mounting bracket 12 for telescopic protection. The dustproof telescopic cover 20 is used to maintain the closed state of the screw rod to prevent excessive dust from affecting its normal work.

[0030] The second screw rod 15 and the second slide rod 16 are diagonally arranged on the first mounting frame 11, and the third screw rod 17 and the third slide rod 18 are diagonally arranged on the second mounting frame 12. The diagonal arrangement improves the stability and balance of the first mounting frame 11 and the second mounting frame 12, and reduces shaking and deviation during movement.

[0031] A plurality of limit blocks 21 are sleeved on the second slide bar 16 and the third slide bar 18. The limit blocks 21 are used to contact the first mounting frame 11 and the second mounting frame 12 to limit the maximum displacement distance between the two, thereby preventing the adjacent first mounting frames 11 and the second mounting frames 12 from colliding with each other.

[0032] Working principle: When the bag dust collector is in use, dust-laden flue gas enters from the air inlet, and the dust in the flue gas is filtered and retained by the dust bag 6 due to the air permeability of the dust filter bag 6, and the dust-filtered flue gas enters the dust filter bag 6 and is discharged from the air outlet. After a period of use, the pulse jet pipe 7 sprays compressed air to clean the dust on the outer surface of the dust filter bag 6. Then, the second motor can be started, so that the first mounting bracket 11 and the second mounting bracket 12 are close to each other under the action of the second screw rod 15 and the third screw rod 17, thereby driving the first semi-annular brush 13 and the second semi-annular brush 14 to fit the surface of the dust filter bag 6 from both sides, and then the control The first motor is controlled to work, and the first motor drives the first screw rod 9 to rotate, so that the movable base 8 moves up and down along the first slide bar 10, thereby driving the first mounting bracket 11 and the second mounting bracket 12 installed on the movable base 8 to move synchronously. As the mounting bracket moves up and down, the first semi-annular brush 13 and the second semi-annular brush 14 brush the surface of the dust filter bag 6 up and down, and the cleaned dust is discharged from the slag discharge pipe 5. The pulse blowing and mechanical brushing methods are used in sequence or alternately to more effectively remove the dust on the dust filter bag 6, especially for a gas environment with high humidity, reduce dust adhesion, and improve the cleaning effect and efficiency.

[0033] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A bag dust collector for steel smelting, comprising a housing (1), characterized in that: A partition (2) is provided at the upper end of the interior of the shell (1); an air inlet pipe (3) is connected to one side of the shell (1) below the partition (2); an air outlet pipe (4) is connected to the other side of the shell (1) above the partition (2); a slag discharge pipe (5) is connected to the bottom of the shell (1); a plurality of fixing frames are evenly provided on the partition (2); dust filter bags (6) are fixedly sleeved on the outside of the plurality of fixing frames; a pulse blowing pipe (7) is provided above the partition (2) and opens toward the top of the dust filter bag (6); A movable seat (8) is symmetrically provided on both sides of the interior of the shell (1), a first screw rod (9) is threadedly passed through one end of the movable seat (8), and a first slide rod (10) is slidably passed through the other end of the movable seat (8), the lower ends of the first screw rod (9) and the first slide rod (10) are connected to the inner wall of the shell (1), the upper ends of the first screw rod (9) and the first slide rod (10) are connected to the partition (2), and a first motor for driving the first screw rod (9) to rotate is provided on the partition (2); A plurality of first mounting frames (11) and a plurality of second mounting frames (12) arranged in parallel are provided in the housing (1); a plurality of first semi-annular brushes (13) and a plurality of second semi-annular brushes (14) are provided on the first mounting frames (11) and the second mounting frames (12), respectively; the first semi-annular brushes (13) and the second semi-annular brushes (14) are positioned on both sides of the dust filter bag (6) in pairs for coordinated use; A second screw rod (15) is threadedly passed through one side of a plurality of the first mounting frames (11), a second slide rod (16) is slidably passed through the other side of a plurality of the first mounting frames (11), a first through hole for the second screw rod (15) and the second slide rod (16) to pass through is respectively opened on the second mounting frame (12), the diameter of the first through hole is larger than the diameter of the second screw rod (15) and the second slide rod (16), a third screw rod (17) is threadedly passed through one side of a plurality of the second mounting frames (12), and a third screw rod (17) is threadedly passed through the other side of a plurality of the second mounting frames (12). A third slide bar (18) is provided for sliding therethrough, and the first mounting frame (11) is provided with a second through hole for the third screw rod (17) and the third slide bar (18) to pass through, the diameter of the second through hole is larger than the diameter of the third screw rod (17) and the third slide bar (18), and the two ends of the second screw rod (15), the third screw rod (17), the second slide bar (16) and the third slide bar (18) are respectively connected to the two movable seats (8), and the two movable seats (8) are respectively provided with a second motor for driving the second screw rod (15) and the third screw rod (17) to rotate.

2. The bag dust collector for steel smelting according to claim 1, characterized in that: A vertically downward limiting rod (19) is provided at the bottom of the partition (2), and the limiting rod (19) is used to resist the moving seat (8).

3. The bag dust collector for steel smelting according to claim 1, characterized in that: The first screw rod (9), the second screw rod (15) and the third screw rod (17) are all sleeved with a dustproof telescopic cover (20).

4. The bag dust collector for steel smelting according to claim 1, characterized in that: The second screw rod (15) and the second slide rod (16) are diagonally arranged on the first mounting frame (11), and the third screw rod (17) and the third slide rod (18) are diagonally arranged on the second mounting frame (12).

5. The bag dust collector for steel smelting according to claim 1, characterized in that: A plurality of limit blocks (21) are sleeved on the second slide bar (16) and the third slide bar (18), and the limit blocks (21) are used to abut against the first mounting frame (11) and the second mounting frame (12) to limit the maximum displacement distance of the two.

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