Flue gas filter bag suitable for blast furnace gas

Abstract

The utility model relates to the technical field of flue gas filter bags, in particular to a flue gas filter bag suitable for blast furnace gas, which comprises a fixing ring and a fixing seat, a flue gas filter bag main body is fixedly arranged on the lower side of the fixing ring, a rotating rod is rotatably connected to the lower side of the fixing seat, and telescopic rods are connected to the outer surface of the fixing seat in an array manner. One side of each telescopic rod is fixedly connected with a vertical plate, one side of each vertical plate is connected with a supporting arc plate in a sliding mode, and one side of each supporting arc plate and one side of each vertical plate are connected with first springs in an array mode. According to the technical scheme, the vertical plates at the four telescopic rods can extend outwards synchronously, the four supporting arc plates provided with the first springs can be elastically supported to the inner walls of the blast furnace gas and flue gas filter bags of different specifications, matched supporting mechanisms do not need to be replaced, and the applicability of the blast furnace gas and flue gas filter bags in the supporting process is improved.

Description

Technical Field

[0001] This utility model relates to the field of flue gas filter bag technology, specifically a filter bag suitable for blast furnace gas flue gas. Background Technology

[0002] Flue gas filter bags are one of the key technical equipment used in large industrial enterprises such as coal-fired power plants to treat flue gas. Their main function is to filter out harmful substances such as particulate matter, sulfur dioxide, and nitrogen oxides from the flue gas, thereby reducing environmental pollution and harm to the environment.

[0003] The prior art discloses patent application number "CN202023183880.0", which discloses a high-efficiency membrane-coated dust collector filter bag for blast furnace gas. The filter bag includes an mounting ring plate, on one side of which a membrane-coated filter bag is mounted. The inner cavity of the membrane-coated filter bag is connected to the inner ring of the mounting ring plate. A positioning device is mounted on the inner ring of the mounting ring plate. A rotating rod coaxially arranged with the mounting ring plate is rotatably mounted on the positioning device. The rotating rod extends into the membrane-coated filter bag, and the end of the rotating rod extending into the membrane-coated filter bag is in contact with the inner wall of the end of the membrane-coated filter bag. A support rod is mounted on the side of the end of the rod, and the side of the support rod extends along the inner wall of the membrane-coated filter bag and slides in contact with the inner wall of the membrane-coated filter bag.

[0004] This dust collector filter bag only allows for convenient cleaning of the inside of the filter bag. However, in actual use, since blast furnace gas filter bags generally use a fixed support mechanism to support their inner walls for filtration, the support mechanism can only be adapted to the same size of gas filter bag. When it is necessary to support other sizes of gas filter bags, a compatible support mechanism must be replaced, which affects the applicability of the blast furnace gas filter bag and makes it inconvenient to use. Utility Model Content

[0005] The purpose of this invention is to provide a filter bag suitable for blast furnace gas flue gas, so as to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A filter bag for blast furnace gas flue gas includes a fixing ring and a fixing seat. The filter bag body is fixedly mounted on the lower side of the fixing ring. A rotating rod is rotatably connected to the lower side of the fixing seat. Telescopic rods are arrayed and connected to the outer surface of the fixing seat. A vertical plate is fixedly connected to one side of the telescopic rod. A supporting arc plate is slidably connected to one side of the vertical plate. A first spring is arrayed and connected to one side of the supporting arc plate and one side of the vertical plate.

[0008] A second U-shaped plate is fixedly connected to the other side of the vertical plate. Two round seats are fixedly connected to the outer surface of the rotating rod. The outer surfaces of the two round seats are each connected to a first U-shaped plate. The interior of the first U-shaped plate and the second U-shaped plate are rotatably connected to a rotating plate. The outer surface of the fixed seat is threaded with a second fastening bolt for fixing the rotating rod.

[0009] Preferably, one side of the rotating rod passes through the fixed seat and extends to the upper side of the fixed seat, and a handwheel is fixedly connected to the upper side of the rotating rod. One side of the supporting arc plate passes through the vertical plate and extends to the other side of the vertical plate, and the fixed seat is located in the middle of the fixed ring.

[0010] Preferably, a movable inner ring is rotatably mounted on the upper side of the fixed ring, and side plates for rotating the movable inner ring are arrayed on the outer surface of the movable inner ring. An array of fixed blocks is fixedly connected to the upper side of the fixed seat. A movable latch rod for connecting the fixed ring is slidably mounted on one side of the fixed block. One side of the movable latch rod passes through the fixed block and extends into the interior of the fixed block. A second spring is fixedly connected to one side of the movable latch rod and one side of the interior of the fixed block.

[0011] Preferably, vertical brush plates for cleaning dust are arrayed and connected to the other side of the supporting arc plate, and an arc-shaped brush plate is fixedly installed on the lower side of the supporting arc plate.

[0012] Preferably, a mounting cover is snapped onto the upper side of the fixing block, and both ends of the fixing block are threaded with a first fastening bolt for fixing the movable clamp rod.

[0013] Preferably, the inner wall of the movable inner ring is provided with an array of circular grooves, which are adapted to the movable locking rod, and the outer surface of the movable locking rod is engaged with the inner wall of the movable inner ring through the circular grooves.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model utilizes a fixed base to drive four supporting arc plates into the interior of the flue gas filter bag. As the two sets of rotating plates rotate, the vertical plates at the four telescopic rods can extend outward synchronously, allowing the four supporting arc plates equipped with the first spring to elastically support the inner wall of blast furnace gas flue gas filter bags of different specifications without the need to replace the corresponding support mechanism, thus improving the applicability of blast furnace gas flue gas filter bag support.

[0016] 2. This utility model allows the movable inner ring to drive the vertical brush plates and arc-shaped brush plates at the four supporting arc plates to continuously scrape the inner wall of the flue gas filter bag, so that the dust on the inner wall of the flue gas filter bag can be cleaned off, avoiding dust accumulation that affects the filtration effect. Compared with the traditional cleaning method, this continuous scraping cleaning method can remove dust more effectively, thereby improving the efficiency of the cleaning work and ensuring the filtration of blast furnace gas flue gas. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a utility model Figure 1 Installation diagram of the inner movable ring and movable lever;

[0020] Figure 3 This is a utility model Figure 2 A schematic diagram of the structure of the central vertical plate, the supporting arc plate, and the first spring;

[0021] Figure 4 This is a utility model Figure 1 Installation diagram of the transfer rod and the round base;

[0022] Figure 5 This is a utility model Figure 4 Schematic diagram of the structure of the fixed ring and the movable inner ring;

[0023] The attached figures are labeled as follows:

[0024] 1. Fixed ring; 2. Main body of flue gas filter bag; 3. Movable inner ring; 4. Fixed seat; 5. Rotating rod; 6. Handwheel; 7. Telescopic rod; 8. Vertical plate; 9. First fastening bolt; 10. Second U-shaped plate; 11. Rotating plate; 12. Supporting arc plate; 13. First spring; 14. Round seat; 15. Fixed block; 16. Movable locking rod; 17. Second spring; 18. Round groove; 19. Arc-shaped brush plate; 20. Vertical brush plate; 21. Mounting cover; 22. Side plate; 23. Second fastening bolt; 24. First U-shaped plate. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 5As shown, a filter bag suitable for blast furnace gas flue gas includes a fixing ring 1 and a fixing seat 4. The filter bag body 2 is fixedly mounted on the lower side of the fixing ring 1. A rotating rod 5 is rotatably connected to the lower side of the fixing seat 4. Telescopic rods 7 are arrayed and connected to the outer surface of the fixing seat 4. A vertical plate 8 is fixedly connected to one side of the telescopic rod 7. A supporting arc plate 12 is slidably connected to one side of the vertical plate 8. Through the installation of the telescopic rod 7 and the first fastening bolt 9, the movement trajectory of the supporting arc plate 12 can be limited and guided by the telescopic adjustment of the telescopic rod 7, so that the supporting arc plate 12 can gradually contract or extend. In this way, the four supporting arc plates 12 can support the filter bags with different inner wall sizes, so that the filtration work can be carried out stably and reliably. A first spring 13 is arrayed and connected to one side of the supporting arc plate 12 and one side of the vertical plate 8.

[0027] A second U-shaped plate 10 is fixedly connected to the other side of the vertical plate 8. Two round seats 14 are fixedly connected to the outer surface of the rotating rod 5. The outer surfaces of the two round seats 14 are connected in an array with first U-shaped plates 24. The interior of the first U-shaped plate 24 and the second U-shaped plate 10 are rotatably connected to a rotating plate 11. The outer surface of the fixed seat 4 is threaded with a second fastening bolt 23 for fixing the rotating rod 5. The four supporting arc plates 12 can be locked during support to ensure the support effect.

[0028] One side of the rotating rod 5 passes through the fixed seat 4 and extends to the upper side of the fixed seat 4. A handwheel 6 is fixedly connected to the upper side of the rotating rod 5. One side of the supporting arc plate 12 passes through the vertical plate 8 and extends to the other side of the vertical plate 8. The fixed seat 4 is located in the middle of the fixed ring 1.

[0029] A movable inner ring 3 is rotatably mounted on the upper side of the fixed ring 1. The outer surface of the movable inner ring 3 is connected in an array of side plates 22 for rotating the movable inner ring 3. An array of fixed blocks 15 are fixedly connected to the upper side of the fixed seat 4. A movable locking rod 16 for connecting the fixed ring 1 is slidably mounted on one side of the fixed block 15. One side of the movable locking rod 16 passes through the fixed block 15 and extends into the interior of the fixed block 15. A second spring 17 is fixedly connected to one side of the movable locking rod 16 and the interior side of the fixed block 15. Through the installation and use of the movable locking rod 16 and the second spring 17, the elastic force of the second spring 17 can be used to extend and retract the four movable locking rods 16 to clamp the movable inner ring 3 with different inner wall sizes, so that the support mechanism formed by the supporting arc plate 12 can be fixed to the interior of the flue gas filter bag, which facilitates the support of the flue gas filter bag.

[0030] On the other side of the supporting arc plate 12, vertical brush plates 20 for cleaning dust are arrayed and connected, and an arc-shaped brush plate 19 is fixedly installed on the lower side of the supporting arc plate 12.

[0031] The upper side of the fixing block 15 is fitted with a mounting cover 21, which can be sealed above the fixing block 15 by the second spring 17 to protect the second spring 17. Both ends of the fixing block 15 are threaded with first fastening bolts 9 for fixing the movable clamping rod 16.

[0032] The inner wall of the movable inner ring 3 is provided with an array of circular grooves 18. The circular grooves 18 are adapted to the movable locking rod 16, and the outer surface of the movable locking rod 16 is engaged with the inner wall of the movable inner ring 3 through the circular grooves 18.

[0033] The working principle of the filter bag for blast furnace gas flue gas provided by this utility model is as follows:

[0034] By placing the fixed seat 4 inside the fixed ring 1, and then engaging the movable locking rod 16 with the second spring 17 installed at the four fixed blocks 15 into the circular groove 18 of the movable inner ring 3, and then tightening the first fastening bolt 9 to press and position the movable locking rod 16, the stability of the fixed seat 4 during installation is ensured. Then the fixed seat 4 can drive the four supporting arc plates 12 into the interior of the flue gas filter bag body 2. Then, turn the handwheel 6 to drive the rotating rod 5 to rotate, which can drive the two sets of rotating plates 11 to rotate, so that the vertical plates 8 at the four telescopic rods 7 can extend outward synchronously, allowing the four supporting arc plates 12 with the first spring 13 to elastically support the inner wall of blast furnace gas flue gas filter bags of different specifications without the need to replace the matching support mechanism, thus improving the applicability of blast furnace gas flue gas filter bag support. At the same time, tightening the four second fastening bolts 23 can press and position the rotating rod 5 to ensure the stability of the four supporting arc plates 12 during support.

[0035] By rotating the side plate 22 at the movable inner ring 3, the side plate 22 drives the movable inner ring 3 to rotate and adjust inside the fixed ring 1. This drives the vertical brush plates 20 and the arc-shaped brush plates 19 at the four supporting arc plates 12 to continuously scrape the inner wall of the blast furnace gas flue gas filter bag, allowing the dust on the inner wall of the flue gas filter bag to be cleaned off, avoiding dust accumulation that affects the filtration effect. Compared with the traditional cleaning method, this continuous scraping cleaning method can remove dust more effectively, thereby improving the efficiency of the cleaning work and ensuring the filtration of blast furnace gas flue gas.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A filter bag suitable for use in filtering the fumes of a blast furnace gas, comprising a fixing ring (1) and a fixing seat (4), characterized in that: The lower side of the fixed ring (1) is fixedly provided with the main body (2) of the flue gas filter bag, the lower side of the fixed seat (4) is rotatably connected with the rotating rod (5), the outer surface of the fixed seat (4) is connected with the telescopic rod (7), one side of the telescopic rod (7) is fixedly connected with the vertical plate (8), one side of the vertical plate (8) is slidably connected with the supporting arc plate (12), one side of the supporting arc plate (12) and one side of the vertical plate (8) are connected with the first spring (13) in an array; A second U-shaped plate (10) is fixedly connected to the other side of the vertical plate (8). Two round seats (14) are fixedly connected to the outer surface of the rotating rod (5). A first U-shaped plate (24) is connected to the outer surface of both round seats (14). A rotating plate (11) is rotatably connected to the interior of the first U-shaped plate (24) and the second U-shaped plate (10). A second fastening bolt (23) for fixing the rotating rod (5) is threadedly connected to the outer surface of the fixed seat (4).

2. A filter bag suitable for use in filtering flue gases from a blast furnace, according to claim 1, characterised in that, One side of the rotating rod (5) passes through the fixed seat (4) and extends to the upper side of the fixed seat (4). A handwheel (6) is fixedly connected to the upper side of the rotating rod (5). One side of the supporting arc plate (12) passes through the vertical plate (8) and extends to the other side of the vertical plate (8). The fixed seat (4) is located in the middle of the fixed ring (1).

3. A filter bag suitable for use in filtering flue gases from a blast furnace, according to claim 1, characterised in that, A movable inner ring (3) is rotatably mounted on the upper side of the fixed ring (1). The outer surface of the movable inner ring (3) is connected in an array of side plates (22) for rotating the movable inner ring (3). An array of fixed blocks (15) is fixedly connected to the upper side of the fixed seat (4). A movable locking rod (16) for connecting the fixed ring (1) is slidably mounted on one side of the fixed block (15). One side of the movable locking rod (16) passes through the fixed block (15) and extends into the interior of the fixed block (15). A second spring (17) is fixedly connected to one side of the movable locking rod (16) and one side of the interior of the fixed block (15).

4. A filter bag suitable for blast furnace gas flue gas according to claim 1, characterized in that, The other side of the supporting arc plate (12) is connected to an array of vertical brush plates (20) for cleaning dust, and an arc-shaped brush plate (19) is fixedly installed on the lower side of the supporting arc plate (12).

5. A filter bag suitable for use in filtering flue gases from a blast furnace, according to claim 3, characterised in that, The upper side of the fixing block (15) is fitted with a mounting cover (21), and both ends of the fixing block (15) are threaded with a first fastening bolt (9) for fixing the movable clamp rod (16).

6. A filter bag suitable for use in filtering flue gases from a blast furnace, according to claim 3, characterised in that, The inner wall of the movable inner ring (3) is provided with an array of circular grooves (18), which are adapted to the movable locking rod (16). The outer surface of the movable locking rod (16) is engaged with the inner wall of the movable inner ring (3) through the circular grooves (18).

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