A dust cleaning structure of a bag filter
By installing baffles and scraper conveyor adjustment and cleaning mechanisms in the inlet flue of the bag filter, the problems of flue blockage and ash accumulation were solved, achieving stable equipment operation and cost optimization.
Patent Information
- Application Number
- CN202522086128.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-28
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-28
AI Technical Summary
Existing baghouse dust collectors suffer from problems such as flue blockage, dust accumulation at the scraper conveyor inlet, and dust accumulation at the outlet during long-term operation, which affect equipment stability and operating costs, and lack flexible control methods.
A guide vane is installed in the inlet flue to guide the flow of flue gas. An adjustment mechanism is installed at the ash inlet of the scraper conveyor, and a cleaning mechanism is installed at the outlet of the scraper conveyor, including components such as guide vanes, baffles, cylinders, motors, and cleaning brushes, to achieve optimized flue gas flow and automatic cleaning of accumulated ash.
Reduce ash accumulation in the flue, optimize ash intake control, clean ash accumulation at the outlet in a timely manner, improve equipment stability and operating efficiency, reduce costs, and simplify operating procedures.
Smart Images
Figure CN224672315U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of baghouse dust collectors, specifically to a dust removal structure for a baghouse dust collector. Background Technology
[0002] In the existing technology, baghouse dust collectors, as key equipment in flue gas treatment systems, are typically composed of an inlet flue, a dust collector body, a distribution duct, and a matching scraper conveyor. Their working principle is to introduce dust-laden flue gas into the dust collector body through the inlet flue, and then distribute the flue gas evenly to each filter bag compartment using the distribution duct. After being filtered by the filter bags, the dust is trapped, and the clean flue gas is discharged. The trapped dust is then transported to a designated location for treatment by the scraper conveyor.
[0003] However, existing baghouse dust collectors have revealed many defects during long-term operation: the horizontal section of the inlet flue lacks an effective airflow guiding structure, resulting in turbulent flue gas flow, which makes it easy for ash particles to accumulate in the horizontal section, causing flue blockage and affecting the stability of the negative pressure of the dust collector; the scraper conveyor ash inlet has no adjustment device, making it impossible to flexibly control the ash feed amount according to the amount of ash, which easily leads to ash accumulation, increases the difficulty of equipment switching and process complexity, and the scraper conveyor outlet lacks an automatic cleaning structure, where ash easily accumulates and caking, affecting the smoothness of the ash conveying system, which in turn leads to increased load on the induced draft fan, increased operating costs, and even the safety risk of the filter bags burning through due to ash accumulation. At the same time, it is not conducive to operators' accurate control of the amount of environmental protection consumables used. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a dust removal structure for a bag filter, solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust removal structure for a bag filter, comprising a bag filter body, a horizontally arranged inlet flue fixedly connected to one side of the bottom of the bag filter body, a guide plate fixedly connected inside the inlet flue, a scraper conveyor at the bottom of the bag filter body, an adjustment mechanism installed between the top of the scraper conveyor and the bottom of the bag filter body, and a cleaning mechanism installed at the bottom of the scraper conveyor.
[0006] Preferably, the guide plate is V-shaped, with both ends of the guide plate fixedly connected to the inner bottom of the inlet flue, and the top of the guide plate has an arc-shaped surface. By setting an inclined guide plate in the horizontal section of the inlet flue, the flow of flue gas can be guided, the accumulation of ash in the horizontal section of the flue can be reduced, and the negative pressure of the dust collector can be guaranteed.
[0007] Preferably, both sides of the guide plate are separated from the inner walls of the inlet flue, with gaps left on both sides to allow for airflow buffering.
[0008] Preferably, the adjustment mechanism includes a first connecting pipe fixedly connected between the bottom of the bag filter body and the ash inlet of the scraper conveyor. A baffle is slidably connected through one side of the first connecting pipe, and a cylinder for driving the baffle to move is fixedly installed on one side of the first connecting pipe. The ash inlet can be adjusted according to the amount of ash, thereby improving the equipment switching process and simplifying the workflow.
[0009] Preferably, the cleaning mechanism includes a second connecting pipe fixedly connected to the ash outlet of the scraper conveyor. A motor is fixedly installed on one side of the second connecting pipe, and the output shaft of the motor is fixedly connected to a cleaning brush that is rotatably connected to the inside of the second connecting pipe through a coupling. This mechanism can promptly clean the accumulated ash at the outlet of the scraper conveyor and solve the problem of ash accumulation at the outlet.
[0010] Preferably, an air outlet pipe is fixedly connected to one side of the top of the bag filter body, and a controller for controlling the adjustment mechanism and the cleaning mechanism is fixedly installed on one side of the outer surface of the bag filter body for easy control.
[0011] This utility model provides a dust removal structure for a bag filter. It has the following beneficial effects: This new baghouse dust collector features a cleaning structure that guides flue gas flow by installing inclined guide plates in the horizontal section of the inlet flue, reducing ash accumulation in the horizontal section and ensuring negative pressure in the dust collector. The adjustment mechanism at the scraper conveyor inlet can adjust the ash inlet volume according to the ash amount, improving equipment switching processes and simplifying procedures. The cleaning mechanism at the scraper conveyor outlet can promptly clean the ash accumulation at the outlet, solving the problem of ash accumulation at the outlet. The overall structural modification retains the original equipment, only modifying some parts of the structure, reducing costs while improving system stability and efficiency. It is also easier for operators to adjust and control the amount of environmental protection consumables used. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the smoke inlet pipe of this utility model; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the adjustment mechanism of this utility model; Figure 5 This is a schematic diagram of the cleaning mechanism of this utility model.
[0013] In the diagram, 1 is the main body of the bag filter; 2 is the inlet flue; 3 is the guide plate; 4 is the scraper conveyor; 5 is the first connecting pipe; 6 is the baffle; 7 is the cylinder; 8 is the second connecting pipe; 9 is the motor; 10 is the cleaning brush; and 11 is the outlet pipe. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0015] Example: like Figure 1 and Figure 2 As shown, a dust removal structure for a bag filter includes a bag filter body 1. A horizontally arranged inlet flue 2 is fixedly connected to one side of the bottom of the bag filter body 1. A guide plate 3 is fixedly connected inside the inlet flue 2. The guide plate 3 is V-shaped, and both ends of the guide plate 3 are fixedly connected to the inner bottom of the inlet flue 2. The top of the guide plate 3 is provided with an arc-shaped surface. Several inclined guide plates 3 are provided in the horizontal section of the inlet flue 2. The inclination angle of the guide plates 3 is 45°. This angle can better guide the flow of flue gas and reduce dust accumulation.
[0016] Both sides of the baffle plate 3 are separated from the inner walls of the inlet flue 2, with gaps left on both sides to allow for airflow buffering.
[0017] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, a scraper conveyor 4 is provided at the bottom of the bag dust collector body 1. An adjustment mechanism is installed between the top of the scraper conveyor 4 and the bottom of the bag dust collector body 1. The adjustment mechanism includes a first connecting pipe 5 fixedly connected between the bottom of the bag dust collector body 1 and the ash inlet of the scraper conveyor 4. A baffle 6 is slidably connected through one side of the first connecting pipe 5. A cylinder 7 for driving the baffle 6 to move is fixedly installed on one side of the first connecting pipe 5.
[0018] The opening size of the ash inlet is adjusted by moving the baffle 6 driven by the cylinder 7, thereby controlling the amount of ash fed in.
[0019] A cleaning mechanism is installed at the bottom of the scraper conveyor 4. The cleaning mechanism includes a second connecting pipe 8 fixedly connected to the ash outlet of the scraper conveyor 4. A motor 9 is fixedly installed on one side of the second connecting pipe 8. The output shaft of the motor 9 is fixedly connected to a cleaning brush 10 that is rotatably connected to the inside of the second connecting pipe 8 via a coupling.
[0020] The motor 9 drives the cleaning brush 10 to rotate, which in turn cleans the dust accumulated at the outlet, thus solving the problem of dust accumulation at the outlet.
[0021] An air outlet pipe 11 is fixedly connected to one side of the top of the bag filter body 1, which facilitates the discharge of filtered flue gas.
[0022] A controller for controlling the adjustment mechanism and the cleaning mechanism is fixedly installed on one side of the outer surface of the bag filter body 1, which facilitates the control of the two mechanisms.
[0023] Working principle: Flue gas enters the interior of the bag filter body 1 from the inlet flue 2. Several inclined guide plates 3 are provided in the horizontal section of the inlet flue 2. The inclination angle of the guide plates 3 is 45°. This angle can better guide the flow of flue gas and reduce dust accumulation.
[0024] The opening size of the ash inlet is adjusted by moving the baffle 6 driven by the cylinder 7, thereby controlling the amount of ash fed in.
[0025] The motor 9 drives the cleaning brush 10 to rotate, which in turn cleans the dust accumulated at the outlet, thus solving the problem of dust accumulation at the outlet.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A dust removal structure for a bag filter, comprising a bag filter body (1), characterized in that: A horizontally arranged inlet flue (2) is fixedly connected to one side of the bottom of the bag dust collector body (1). A guide plate (3) is fixedly connected inside the inlet flue (2). A scraper conveyor (4) is provided at the bottom of the bag dust collector body (1). An adjustment mechanism is installed between the top of the scraper conveyor (4) and the bottom of the bag dust collector body (1). A cleaning mechanism is installed at the bottom of the scraper conveyor (4).
2. The dust removal structure of a bag filter according to claim 1, characterized in that: The guide plate (3) is V-shaped, and both ends of the guide plate (3) are fixedly connected to the inner bottom of the inlet flue (2), and the top of the guide plate (3) is provided with an arc-shaped surface.
3. The dust removal structure of a bag filter according to claim 1, characterized in that: Both sides of the guide plate (3) are separated from the inner walls of the inlet flue (2).
4. The dust removal structure of a bag filter according to claim 1, characterized in that: The adjustment mechanism includes a first connecting pipe (5) fixedly connected between the bottom of the bag filter body (1) and the ash inlet of the scraper conveyor (4). A baffle (6) is slidably connected through one side of the first connecting pipe (5). A cylinder (7) for driving the baffle (6) to move is fixedly installed on one side of the first connecting pipe (5).
5. The dust removal structure of a bag filter according to claim 1, characterized in that: The cleaning mechanism includes a second connecting pipe (8) fixedly connected to the ash outlet of the scraper (4). A motor (9) is fixedly installed on one side of the second connecting pipe (8). The output shaft of the motor (9) is fixedly connected to a cleaning brush (10) that is rotatably connected to the inside of the second connecting pipe (8) via a coupling.
6. The dust removal structure of a bag filter according to claim 1, characterized in that: An air outlet pipe (11) is fixedly connected to one side of the top of the bag filter body (1), and a controller for controlling the adjustment mechanism and the cleaning mechanism is fixedly installed on one side of the outer surface of the bag filter body (1).