A pulse bag dust collector that is easy to maintain

Abstract

The utility model discloses a pulse-type bag dust collector which is easy to maintain, comprising a dust collector body, the dust collector body comprising a box body, an air inlet is arranged at the bottom of one side of the box body, an air outlet is arranged at the top of the other side of the box body, a filter chamber is arranged between the air inlet and the air outlet of the box body, a filter bag assembly is arranged inside the filter chamber, the filter bag assembly comprises an upper flower plate and a lower frame plate, the edges of the upper flower plate and the lower frame plate are both fixed to the inner wall of the box body, the filter bag body is evenly installed on the surface of the upper flower plate, the surface of the lower frame plate is evenly provided with positioning openings, and the bottom end of the filter bag body passes through the positioning openings; an ash hopper is connected to the bottom of the box body, an ash discharging opening is arranged at the center of the bottom of the ash hopper, an ash discharging mechanism is arranged at the ash discharging opening, and the ash discharging mechanism comprises a flap and a counterweight block, one end of the flap is rotatably connected to the side wall of the ash hopper located at the ash discharging opening, and a connecting rod is connected to the outer side of the flap located at the rotating connection.

Description

Technical Field

[0001] The utility model belongs to the technical field of bag dust collectors, and in particular relates to a pulse bag dust collector which is easy to maintain. Background Art

[0002] The pulse bag filter has significantly improved the air-to-cloth ratio with its advanced cleaning technology, thus showing many advantages such as large air volume, small footprint, high purification efficiency, reliable operation, simple structure and low maintenance. Its dust removal efficiency can be as high as 99% or more, and it is a mature and complete high-efficiency dust removal equipment. Its working principle is: the dust-laden gas enters the filter chamber through the ash hopper or the spacious open flange at the bottom. In this process, the coarser particulate matter falls directly into the ash hopper or ash bin. Subsequently, the dust-laden gas is filtered by the filter bag, so that the dust is effectively retained on the surface of the filter bag. The clean gas after filtering by the filter bag enters the clean air chamber through the bag opening and is finally discharged into the atmosphere by the fan. As the dust on the surface of the filter bag continues to accumulate, the equipment resistance will gradually increase. When the resistance reaches the set value, the time relay or micro differential pressure controller will send a signal to start the operation of the program controller. The program controller will open the pulse valves one by one, so that the compressed air can be blown through the nozzle to clean the filter bag. During this process, the filter bag will suddenly expand, and the reverse airflow will cause the dust attached to the surface of the filter bag to fall off quickly and fall into the ash hopper or ash bin. After that, the dust will be discharged through the ash discharge valve. When all the filter bags have been sprayed and cleaned, the dust collector will return to normal working state.

[0003] Bag dust collectors are mainly designed to capture fine, dry, non-fibrous dust. However, in actual applications, it is found that in order to facilitate the installation of filter bags, bag dust collectors use a sleeve-type form when fixing the filter bags, which causes the filter bag perforations of the flower plate to be slightly larger than the diameter of the filter bag, and because the filter bag is too long, it is easy for the frame and the perforations of the flower plate in the filter bag to collide with each other. This collision phenomenon will not only cause the wear of the filter bag at the connection between the frame and the bag body to increase, but in severe cases, it may even cause the filter bag to be damaged, thereby causing leakage problems and ultimately affecting the dust removal efficiency. In addition, when the dust hopper of the dust collector has a large amount of dust accumulation, the material must be discharged in time, otherwise it will affect the dust filtering effect. Therefore, it is very important to regularly maintain and unload the ash hopper. However, the traditional dust collector ash hopper unloading mechanism often relies on manually operated discharge valves or corresponding electrical equipment to control the valve, which brings certain inconveniences to the maintenance of the ash hopper itself and the maintenance of related electrical equipment in the later stage. In view of the above problems, the utility model proposes a pulse bag dust collector which is easy to maintain. By optimizing the structure and functional design, it aims to improve the dust removal efficiency and service life, and solve the problem of inconvenient dust unloading and maintenance.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pulse bag dust collector that is easy to maintain, comprising a dust collector body, the dust collector body comprising a box body, an air inlet is arranged at the bottom of one side of the box body, an air outlet is arranged at the top of the other side of the box body, a filter chamber is arranged between the air inlet and the air outlet of the box body, a filter bag assembly is arranged inside the filter chamber, the filter bag assembly comprises an upper flower plate and a lower frame plate, the edges of the upper flower plate and the lower frame plate are fixed to the inner wall of the box body, the filter bag body is evenly installed on the surface of the upper flower plate, the surface of the lower frame plate is evenly provided with positioning openings, and the bottom end of the filter bag body passes through the positioning opening;

[0006] An ash hopper is connected to the bottom of the box body, an ash discharge port is arranged at the center of the bottom of the ash hopper, an ash discharge mechanism is arranged at the ash discharge port, and the ash discharge mechanism includes a flap and a counterweight block. One end of the flap is rotatably connected to the side wall of the ash hopper located at the ash discharge port, a connecting rod is connected to the outer side of the flap located at the rotating connection, a connecting rope is fixed to the end of the connecting rod, and the counterweight block is installed at the end of the connecting rope.

[0007] As a preferred technical solution of the utility model, the upper flower plate and the lower frame plate are arranged in parallel, and the positioning openings are arranged in a collinear manner.

[0008] As a preferred technical solution of the utility model, the filter bag body includes a support frame and a bag body, the bag body is sleeved on the outside of the support frame, and the top end of the support frame is detachably mounted on the upper flower plate.

[0009] As a preferred technical solution of the utility model, a hanging ring is fixedly connected to the bottom end of the connecting rope, a hook is fixed at the top center of the counterweight block, and the hanging ring and the hook are adapted to each other.

[0010] As a preferred technical solution of the utility model, an ash collecting box is arranged at the bottom of the ash discharge port.

[0011] As a preferred technical solution of the present utility model, the flap and the connecting rod are an integrally formed structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model accurately positions the bottom of the filter bag by adding a lower frame plate. The lower frame plate adopts a frame structure design, and the surface is specially made into a hollow form, which is intended to ensure that the dust-containing gas can flow smoothly without any obstruction. At the same time, the design effectively stabilizes the bottom position of the filter bag body, significantly reduces unnecessary collisions and wear between filter bags, thereby greatly improving the dust removal efficiency and significantly extending the service life of the filter bag. In addition, the utility model is also provided with a gravity ash unloading mechanism, which can realize automatic, convenient and efficient ash unloading operations. The mechanism adopts a completely mechanical structure design and does not rely on manual operation or electrical structure. This not only simplifies the operation process and improves work efficiency, but also greatly facilitates subsequent maintenance and replacement work, and effectively reduces maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the box body in the utility model;

[0016] Figure 2 It is a structural schematic diagram of the lower frame plate in the utility model;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the upper flower plate and the filter bag body in the utility model;

[0018] In the figure: 1. box body; 2. air inlet; 3. air outlet; 4. filter chamber; 5. upper flower plate; 6. lower frame plate; 7. filter bag body; 8. positioning port; 9. ash hopper; 10. ash discharge port; 11. flap; 12. connecting rod; 13. connecting rope; 14. counterweight; 15. supporting frame; 16. bag body; 17. hanging ring; 18. hook; 19. ash collecting box. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example

[0021] See also Figure 1-3The utility model provides the following technical solutions: a pulse bag dust collector that is easy to maintain, including a dust collector body, the dust collector body including a box body 1, at the bottom of one side of the box body 1, a special air inlet 2 is provided for introducing the dust-containing gas to be treated. At the top of the other side of the box body 1, an air outlet 3 is provided for discharging the purified gas. A filter chamber 4 is cleverly arranged between the air inlet 2 and the air outlet 3 of the box body 1. A filter bag assembly is installed inside the filter chamber 4, and the assembly consists of an upper flower plate 5 and a lower frame plate 6, and the edges of both are firmly fixed to the inner wall of the box body 1. The surface of the upper flower plate 5 is evenly arranged with filter bag bodies 7, and these filter bag bodies 7 can effectively intercept dust particles in the gas. At the same time, positioning holes 8 are evenly arranged on the surface of the lower frame plate 6, and the bottom end of the filter bag body 7 passes through these positioning holes 8 to ensure that the filter bag body 7 is installed stably and positioned accurately. By fixing the bottom end of the filter bag body 7, the stability of the installation of the filter bag body 7 is improved, and the collision and wear between the filter bag body 7 and the perforations of the upper flower plate 5 are reduced, thereby improving the dust removal efficiency and service life.

[0022] At the bottom of the box body 1, there is a ash hopper 9 connected to collect dust falling from the filter bag body 7. An ash discharge port 10 is provided at the bottom center of the ash hopper 9 to facilitate the discharge of the collected dust. At the ash discharge port 10, an ash discharge mechanism is specially configured, which includes a flap 11 and a counterweight 14. One end of the flap 11 is rotatably connected to the side wall of the ash hopper 9 located at the ash discharge port 10. The rotatable connection facilitates the opening and closing of the flap 11, so that the flap 11 can be flexibly opened and closed. The flap 11 is connected to a connecting rod 12 on the outside of the rotating connection, and a connecting rope 13 is fixed to the end of the connecting rod 12. The counterweight 14 is installed at the end of the connecting rope 13. The counterweight 14 is used to adjust the weight of the flap 11. By changing the weight of the counterweight 14, the opening and closing of the flap 11 can be automatically controlled, realizing the function of automatic ash discharge, thereby controlling the ash output.

[0023] In order to ensure that the filter bag body 7 is vertical, in this embodiment, as a preferred technical solution of the utility model, the upper flower plate 5 and the lower frame plate 6 are arranged in parallel, and the positioning openings 8 and the positioning openings 8 are arranged in the same line.

[0024] In order to ensure the strength of the filter bag body 7 and facilitate the later disassembly and assembly of the bag body 16, in this embodiment, as a preferred technical solution of the utility model, the filter bag body 7 includes a support frame 15 and a bag body 16, the bag body 16 is sleeved on the outside of the support frame 15, and the top of the support frame 15 is detachably mounted on the upper flower plate 5.

[0025] In order to facilitate the replacement of counterweight blocks 14 of different weights, in this embodiment, as a preferred technical solution of the utility model, a hanging ring 17 is fixedly connected to the bottom end of the connecting rope 13, and a hook 18 is fixed at the top center of the counterweight block 14, and the hanging ring 17 and the hook 18 are adapted to each other.

[0026] In order to conveniently collect the dust falling from the ash hopper 9 , in this embodiment, as a preferred technical solution of the utility model, an ash collecting box 19 is provided at the bottom of the ash discharge port 10 .

[0027] In order to ensure the connection strength between the flap 11 and the connecting rod 12, in this embodiment, as a preferred technical solution of the utility model, the flap 11 and the connecting rod 12 are an integrally formed structure.

[0028] In summary, with the help of the above technical solution of the utility model, the dust-containing gas flows into the internal filter chamber 4 from the air inlet 2 of the box body 1, and is driven by the fan at the air outlet 3. The air flow passes through the bag body 16 of the filter bag body 7 for filtration, effectively filtering out the dust in the dust-containing gas, and the clean gas is discharged from the air outlet 3, while the dust is trapped on the surface of the bag body 16 of the filter bag body 7, and the excess dust naturally settles in the ash hopper 9. The lower frame plate 6 adopts a frame structure design, and the surface is hollowed out to ensure that the dust-containing gas flows smoothly. At the same time, it effectively positions the bottom of the filter bag body 7, reduces the collision and wear between the filter bag body 7 and the perforation of the upper flower plate 5, and ensures the stability of the filter bag body 7, thereby improving the dust removal efficiency and extending the service life. The ash unloading mechanism includes an ash hopper 9, a flap 11, a connecting rod 12, a connecting rope 13 and a counterweight block 14. The flap 11 is installed at the ash unloading port 10 of the ash hopper 9 in an openable and closable manner through a rotating connection. The counterweight block 14 is used to adjust the weight of the flap 11 to accurately control the ash output. When the weight of the dust accumulated in the ash hopper 9 exceeds the counterweight block 14, the flap 11 will automatically open, and the dust will be discharged from the ash discharge port 10 under the action of gravity, thus realizing the automatic ash discharge function.

[0029] Finally, it should be noted that in the present utility model, unless otherwise clearly stipulated and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0030] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pulse bag dust collector that is easy to maintain, comprising a dust collector body, characterized in that: The dust collector body comprises a box body (1), an air inlet (2) is arranged at the bottom of one side of the box body (1), an air outlet (3) is arranged at the top of the other side of the box body (1), a filter chamber (4) is arranged between the air inlet (2) and the air outlet (3) of the box body (1), a filter bag assembly is arranged inside the filter chamber (4), and the filter bag assembly comprises an upper flower plate (5) and a lower frame plate (6), the edges of the upper flower plate (5) and the lower frame plate (6) are fixed to the inner wall of the box body (1), the surface of the upper flower plate (5) is evenly installed with a filter bag body (7), the surface of the lower frame plate (6) is evenly provided with a positioning opening (8), and the bottom end of the filter bag body (7) passes through the positioning opening (8); The bottom of the box body (1) is connected to an ash hopper (9), and an ash discharge port (10) is arranged at the center of the bottom of the ash hopper (9). An ash discharge mechanism is arranged at the ash discharge port (10), and the ash discharge mechanism comprises a flap (11) and a counterweight (14). One end of the flap (11) is rotatably connected to the side wall of the ash hopper (9) located at the ash discharge port (10), and the outer side of the flap (11) located at the rotatable connection is connected to a connecting rod (12), and a connecting rope (13) is fixed to the end of the connecting rod (12), and the counterweight (14) is installed at the end of the connecting rope (13).

2. The pulse bag dust collector easy to maintain according to claim 1 is characterized in that: The upper flower plate (5) and the lower frame plate (6) are arranged in parallel, and the positioning openings (8) and the positioning openings (8) are arranged in a colinear manner.

3. The pulse bag dust collector easy to maintain according to claim 1 is characterized in that: The filter bag body (7) comprises a support frame (15) and a bag body (16), wherein the bag body (16) is sleeved on the outside of the support frame (15), and the top end of the support frame (15) is detachably mounted on the upper flower plate (5).

4. The pulse bag dust collector easy to maintain according to claim 1 is characterized in that: The bottom end of the connecting rope (13) is fixedly connected with a hanging ring (17), and the top center of the counterweight block (14) is fixed with a hook (18), and the hanging ring (17) and the hook (18) are adapted to each other.

5. The pulse bag dust collector easy to maintain according to claim 1 is characterized in that: An ash collecting box (19) is provided at the bottom of the ash discharge port (10).

6. The pulse bag dust collector easy to maintain according to claim 1, characterized in that: The flap (11) and the connecting rod (12) are an integrally formed structure.

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