Explosion-proof type obliquely-inserted filter cartridge dust remover

Abstract

The utility model provides an explosion-proof type dust remover with obliquely inserted filter cartridges. The explosion-proof type dust remover comprises an upper box body, an ash hopper, a support frame and the filter cartridges, an air inlet and an air outlet are formed in the upper box body, a rear pattern plate is arranged in the upper box body, and a cavity of the upper box body is divided into a dust chamber and a clean chamber by the rear pattern plate; the filter cartridge is obliquely mounted in the dust chamber, and one end, facing the rear pattern plate, of the filter cartridge is mounted on the rear pattern plate; the air inlet is communicated with the dust chamber; the air outlet is communicated with the clean room; a filter cartridge protection plate is further arranged in the upper box body, the filter cartridge protection plate is obliquely arranged upwards from the inner side wall of the upper box body below the air inlet, the upper end of the filter cartridge protection plate is connected with the inner top of the upper box body, and a notch is formed between the bottom end of the filter cartridge protection plate and the inner side wall of the upper box body. According to the utility model, the dust accumulation surface is reduced, the risk of dust accumulation is reduced, the safety and the reliability are improved, the impact force on the filter cartridge is reduced, the service life of the filter cartridge is prolonged, and the filter cartridge is suitable for being used in an environment containing flammable and explosive dust.

Description

Technical Field

[0001] This utility model relates to the field of dust collector technology, and in particular to an explosion-proof inclined cartridge dust collector. Background Technology

[0002] Dust collection and treatment are crucial in industrial production. Inclined cartridge dust collectors, with their angled layout, offer a more compact structure and smaller footprint, making them particularly suitable for space-constrained environments such as factory interiors and production workshops. Filter cartridge installation and replacement are relatively simple, facilitating maintenance and repair, and the number and configuration of cartridges can be adjusted according to actual needs. The cartridges typically use high-efficiency filter materials, effectively removing fine particulate matter from dust-laden gases. The optimized airflow design also results in low operating resistance and relatively low energy consumption. Therefore, inclined cartridge dust collectors are widely used in various industrial sectors, such as metallurgy, chemical engineering, building materials, lithium batteries, and food processing. However, inclined cartridge dust collectors are criticized in explosive environments due to their internal structure having a large dust accumulation surface, making them unsuitable for handling dust that is prone to spontaneous combustion and explosion. Summary of the Invention

[0003] To address the above problems, this utility model provides an explosion-proof inclined cartridge dust collector.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An explosion-proof inclined cartridge dust collector includes an upper housing, a dust hopper, a support frame, and a filter cartridge;

[0006] The ash hopper is fixed below the upper box; the support frame is fixed at the bottom of the upper box to support the upper box.

[0007] The upper housing is provided with an air inlet and an air outlet. A rear perforated plate is provided inside the upper housing, dividing the chamber of the upper housing into a dust chamber and a clean chamber. A filter cartridge is installed obliquely inside the dust chamber, with one end of the filter cartridge facing the rear perforated plate. The air inlet connects to the dust chamber; the air outlet connects to the clean chamber. A filter cartridge protection plate is also provided inside the upper housing, obliquely positioned upwards from the inner wall of the upper housing below the air inlet. The upper end of the filter cartridge protection plate connects to the inner top of the upper housing, and a groove is provided between the bottom end of the filter cartridge protection plate and the inner wall of the upper housing.

[0008] Furthermore, the filter cartridge protection plate is a V-shaped bent plate, with the opening of the V-shaped bent plate facing the air inlet.

[0009] Furthermore, the filter cartridge protection plate is a bent plate with an angle of 120°-135°, the filter cartridge protection plate has a bending line, the bending line has an angle of 50°-55° with the horizontal, and the side of the filter cartridge protection plate facing the air inlet is a flow-dividing surface, the flow-dividing surface has an angle of 55° with the horizontal.

[0010] Furthermore, the rear panel is provided with a filter cartridge mounting groove, which is a V-shaped groove; the filter cartridge mounting groove includes a filter cartridge mounting surface and a non-filter cartridge mounting surface, the filter cartridge is fixed on the filter cartridge mounting surface, the axial direction of the filter cartridge is perpendicular to the filter cartridge mounting surface, and the non-filter cartridge mounting surface has an angle of 50°-55° with the horizontal.

[0011] Furthermore, the lower bottom of the upper box is open, and an inner flange is provided on the inner side wall of the lower bottom of the upper box; the inner flange is horizontally arranged, and a corresponding fixed flange is provided at the upper end of the ash hopper; the ash hopper and the upper box are detachably connected by bolts.

[0012] Furthermore, a dust baffle is provided on the inner side wall of the upper housing. The dust baffle is located at the lower part of the upper housing and is inclined inward and downward from the inner side wall of the upper housing. The lowest end of the dust baffle is flush with the lower surface of the inner flange.

[0013] Furthermore, the angle between the dust baffle and the horizontal plane is 50°-55°.

[0014] Furthermore, side plates are installed on the front and rear sides of the upper housing via flanges. The side plates protrude outwards, and the side plates facing the inside of the upper housing have outward-facing grooves.

[0015] Furthermore, the edge of the side plate is fixedly mounted with a flange, and the inner cavity of the groove is trapezoidal.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. Reduce dust accumulation: By optimizing the angles of the filter cartridge protection plate and the rear tube sheet, the dust accumulation surface is significantly reduced, lowering the risk of dust buildup.

[0018] 2. Improved safety: Reduced dust accumulation surface area lowers the risk of spontaneous combustion and explosion, making it particularly suitable for industrial environments containing flammable and explosive dust.

[0019] 3. Extended service life: The optimized design of the dust chamber side plate reduces the impact on the filter cartridge, thus extending the service life of the filter cartridge. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of an explosion-proof inclined cartridge dust collector according to the present invention;

[0021] Figure 2 This is a cross-sectional view of an explosion-proof inclined cartridge dust collector according to the present invention;

[0022] Figure 3 This is an enlarged view of side I of an explosion-proof inclined cartridge dust collector according to this utility model;

[0023] Figure 4 This is a partial sectional view along direction A of an explosion-proof inclined cartridge dust collector according to this utility model. Detailed Implementation

[0024] To provide a better understanding of the purpose, structure, features, and functions of this utility model, detailed descriptions are provided below with reference to specific embodiments.

[0025] Please refer to the reference. Figure 1 , Figure 2 , Figure 3 and Figure 4 An explosion-proof inclined cartridge dust collector according to an embodiment of the present invention includes an upper housing 1, a dust hopper 2, a support frame 3, and a filter cartridge 4.

[0026] The ash hopper 2 is fixed below the upper box 1; it is used to contain ash. The ash hopper 2 is equipped with a discharger 5 to discharge ash and prevent dust accumulation inside. The support frame 3 is fixed to the bottom of the upper box 1 to support the upper box 1; it ensures that there is space between the ash hopper 2 and the ground for easy ash discharge.

[0027] The upper housing 1 is provided with an air inlet 11 and an air outlet 12. The upper housing 1 is provided with a rear perforated plate 6, which divides the chamber of the upper housing 1 into a dust chamber 13 and a clean chamber 14. The filter cartridge 4 is installed obliquely in the dust chamber 13, with one end of the filter cartridge 4 facing the rear perforated plate 6. The air inlet 11 is connected to the dust chamber 13. The air outlet 12 is connected to the clean chamber 14. Dust-laden gas enters the dust chamber 13 from the air inlet 11 of the upper housing 1. After being filtered by the filter cartridge 4, the dust is intercepted, and the clean gas enters the clean chamber 14 and is discharged through the air outlet 12, ensuring that the dust removal is carried out normally.

[0028] The upper housing 1 is also equipped with a filter cartridge protection plate 7. The filter cartridge protection plate 7 is inclined upward from the inner side wall of the upper housing 1 below the air inlet 11. The upper end of the filter cartridge protection plate 7 is connected to the inner top of the upper housing 1, and a slot 71 is provided between the bottom end of the filter cartridge protection plate 7 and the inner side wall of the upper housing 1. This ensures that when air enters through the air inlet 11, the dust-laden gas will first come into contact with the filter cartridge protection plate 7 and be diverted by the filter cartridge protection plate 7, reducing the impact of the incoming air on the filter cartridge 4, avoiding direct dust scouring of the filter cartridge 4, and extending the service life of the filter cartridge 4. At the same time, some dust will be deposited on the filter cartridge protection plate 4, which will slide down along the inclined filter cartridge protection plate 7 and, through the slot 71, allow the deposited dust to slide smoothly into the ash hopper 2, avoiding dust accumulation. At the same time, the inclined filter cartridge protection plate 7 connecting the side wall and the inner top also enhances the supporting strength of the upper housing 1 of the dust collector, preventing the dust collector from deforming.

[0029] The filter cartridge protection plate 7 is a V-shaped bent plate, with the opening of the V-shaped bent plate facing the air inlet 11. This facilitates the diversion of incoming air and allows dust to accumulate and deposit at the bending line 72 in the middle of the two side panels 73, making it easier for dust to slide off and preventing dust from leaking out from the side of the filter cartridge protection plate 7, ensuring that the dust falls smoothly into the dust hopper.

[0030] The filter cartridge protection plate 7 is a bent plate with an angle of 135°. The filter cartridge protection plate 7 has a bending line 72, and the bending line 72 makes an angle of 50° with the horizontal. The side of the filter cartridge protection plate 7 facing the air inlet is a flow-dividing surface, and the flow-dividing surface makes an angle of 55° with the horizontal. This ensures that the tilt angle of the filter cartridge protection plate 7 is greater than the angle of repose of most dust particles, ensuring that dust will not accumulate on the filter cartridge protection plate 7.

[0031] The rear tube sheet 6 is provided with a filter cartridge mounting groove 8, which is a V-shaped groove. The filter cartridge mounting groove includes a filter cartridge mounting surface 81 and a non-filter cartridge mounting surface 82. The filter cartridge 4 is fixed on the filter cartridge mounting surface 81, and the axial direction of the filter cartridge 4 is perpendicular to the filter cartridge mounting surface 81. The non-filter cartridge mounting surface 82 forms a 55° angle with the horizontal. This ensures that dust will not accumulate at the rear tube sheet 6, and the dust can slide down along the non-filter cartridge mounting surface 82 and fall into the ash hopper 2, reducing the risk of dust accumulation.

[0032] The lower bottom of the upper housing 1 is open, and an inner flange 15 is provided on the inner side wall of the lower bottom of the upper housing 1. The inner flange 15 is horizontally arranged, and a corresponding fixing flange 21 is provided at the upper end of the ash hopper 2. The ash hopper 2 is detachably connected to the upper housing 1 by bolts. The connection between the upper housing 1 and the ash hopper 2 adopts hexagonal rivet nuts and bolts to ensure a simple, firm, and reliable connection, facilitating assembly. The inner flange 15 is designed to enable the assembly of multiple rows of housings and avoid flange obstruction.

[0033] A dust baffle 16 is also provided on the inner wall of the upper housing 1. The dust baffle 16 is located at the lower part of the upper housing 1 and is fully welded above the inner flange 15. The dust baffle 16 is inclined inward and downward from the inner wall of the upper housing 1, and the lowest point of the dust baffle 16 is flush with the lower surface of the inner flange 15. The angle between the dust baffle 16 and the horizontal plane is 55°. This further reduces the possibility of dust accumulation and avoids dust accumulation on the inner flange, significantly reducing the dust accumulation surface.

[0034] Side plates 9 are mounted on the front and rear sides of the upper housing 1 via flanges. These side plates 9 are detachable using bolts, facilitating disassembly and maintenance. The side plates 9 protrude outwards, and their inner surfaces facing the upper housing 1 have outward-facing grooves 92. This increases the flow space of dust-laden gas between the filter cartridge 4 and the side plates 9, allowing the gas to slow down. This reduces the impact on the filter cartridge, extending its service life, and also prevents the accumulation of dust-laden airflow at lower speeds.

[0035] The edge of the side plate 9 is fixedly mounted with a flange 91 for fixing to the front and rear sides of the upper housing 1. The inner cavity of the groove 92 is trapezoidal, gradually decreasing in size from the inside to the outside. This prevents dust accumulation in the side plate groove 92, ensuring that dust can slide off along the inclined surface of the groove 92, reducing the dust accumulation area and lowering the risk of dust buildup.

[0036] When the dust collector is working, it includes:

[0037] 1. Dust-laden gas enters: Dust-laden gas enters the dust chamber 13 from the air inlet 11 of the upper housing 1. It is first diverted by the filter cartridge protection plate 7 to prevent direct dust scouring of the filter cartridge 4.

[0038] 2. Dust filtration: The dust-laden gas after diversion passes through filter cartridge 4, and the dust is intercepted and adsorbed on the surface of filter cartridge 4.

[0039] 3. Dust sliding: Due to the optimized angle of the filter cartridge protection plate 7 and the rear tube sheet 6, the deposited dust can slide smoothly and enter the ash hopper 2.

[0040] 4. Clean gas discharge: The clean gas filtered by the filter cartridge 4 enters the clean chamber 14 and is discharged through the air outlet 12.

[0041] As described above, this explosion-proof inclined cartridge dust collector effectively solves the problem of dust accumulation in traditional inclined cartridge dust collectors in explosive environments by optimizing the design of key components, thus improving the safety and reliability of the equipment. This dust collector is suitable for various industrial fields, and performs particularly well in environments containing flammable and explosive dust. Improved dust collector performance includes: increased dust removal efficiency: the optimized angles of the filter cartridge protection plate and the rear tube sheet result in more uniform airflow distribution, significantly improving the dust removal effect under simultaneous dust and airflow, and greatly increasing dust removal efficiency. Enhanced safety: the addition of a baffle plate at the ash hopper flange effectively prevents dust accumulation, reduces safety hazards such as explosions, and improves equipment safety. Extended equipment lifespan: the optimized design reduces wear on the filter cartridges and tube sheet, extending the overall lifespan of the equipment and reducing the frequency of equipment replacement.

[0042] This utility model has been described by the above-described embodiments; however, these embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. Conversely, any modifications and refinements made without departing from the spirit and scope of this utility model are within the scope of patent protection of this utility model.

Claims

1. An explosion-proof inclined cartridge filter dust collector, characterized in that: Includes the upper housing, ash hopper, support frame, and filter cartridge; The ash hopper is fixed below the upper box; the support frame is fixed at the bottom of the upper box to support the upper box. The upper housing is provided with an air inlet and an air outlet. A rear perforated plate is provided inside the upper housing, dividing the chamber of the upper housing into a dust chamber and a clean chamber. A filter cartridge is installed obliquely inside the dust chamber, with one end of the filter cartridge facing the rear perforated plate. The air inlet connects to the dust chamber; the air outlet connects to the clean chamber. A filter cartridge protection plate is also provided inside the upper housing, obliquely positioned upwards from the inner wall of the upper housing below the air inlet. The upper end of the filter cartridge protection plate connects to the inner top of the upper housing, and a groove is provided between the bottom end of the filter cartridge protection plate and the inner wall of the upper housing.

2. The explosion-proof inclined cartridge dust collector as described in claim 1, characterized in that: The filter cartridge protection plate is a V-shaped bent plate, and the opening of the V-shaped bent plate faces the air inlet.

3. The explosion-proof inclined cartridge dust collector as described in claim 2, characterized in that: The filter cartridge protection plate is a bent plate with an angle of 120°-135°. The filter cartridge protection plate has a bending line with an angle of 50°-55° to the horizontal. The side of the filter cartridge protection plate facing the air inlet is a flow-dividing surface with an angle of 55° to the horizontal.

4. The explosion-proof inclined cartridge dust collector as described in claim 1, characterized in that: The rear panel is provided with a filter cartridge mounting groove, which is a V-shaped groove. The filter cartridge mounting groove includes a filter cartridge mounting surface and a non-filter cartridge mounting surface. The filter cartridge is fixed on the filter cartridge mounting surface, and the axial direction of the filter cartridge is perpendicular to the filter cartridge mounting surface. The non-filter cartridge mounting surface has an angle of 50°-55° with the horizontal.

5. The explosion-proof inclined cartridge dust collector as described in claim 1, characterized in that: The bottom of the upper box is open, and an inner flange is provided on the inner side wall of the bottom of the upper box; the inner flange is horizontally arranged, and a corresponding fixed flange is provided at the upper end of the ash hopper; the ash hopper and the upper box are detachably connected by bolts.

6. The explosion-proof inclined cartridge dust collector as described in claim 5, characterized in that: A dust baffle is also provided on the inner side wall of the upper housing. The dust baffle is located at the lower part of the upper housing and is inclined inward and downward from the inner side wall of the upper housing. The lowest end of the dust baffle is flush with the lower surface of the inner flange.

7. The explosion-proof inclined cartridge dust collector as described in claim 6, characterized in that: The angle between the dust baffle and the horizontal plane is 50°-55°.

8. The explosion-proof inclined cartridge dust collector as described in claim 1, characterized in that: Side plates are installed on the front and rear sides of the upper housing via flanges. The side plates protrude outwards, and the side plates facing inwards towards the upper housing have outward-facing grooves.

9. The explosion-proof inclined cartridge dust collector as described in claim 8, characterized in that: The edge of the side plate is fixedly mounted with a flange, and the inner cavity of the groove is trapezoidal.

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