A bag filter dust removal device for cement plants

Abstract

This application discloses a bag filter dust removal device for cement plants, belonging to the technical field of dust removal equipment. It includes a bag filter dust collector and a dust removal mechanism. The dust removal mechanism includes a fixed plate and a lifting plate. A fixed block is fixedly mounted on the lifting plate. A hydraulic telescopic component is installed inside the bag filter dust collector and is fixedly connected to the fixed block. A dust collector bag is mounted on the lifting plate, and a support frame is installed inside the dust collector bag. The support frame includes fixed rings and lifting rings evenly distributed vertically. A support mechanism connects the fixed rings and lifting rings. The fixed rings are fixedly connected to the fixed plate, and the lifting rings are slidably mounted vertically at the fixed rings. Fixed seats and sliding seats are fixedly mounted on the fixed rings and lifting rings. The support mechanism includes a hinged rod hinged to the fixed seats and sliding seats. The beneficial effect of this application is that by controlling the pores on the surface of the dust collector bag through the hydraulic telescopic component, surface dust removal operations can be performed on the dust collector sleeve and dust collector bag under relatively low gas pressure.

Description

Technical Field

[0001] This application relates to the field of dust removal equipment technology, and more specifically, to a bag filter dust removal device for cement plants. Background Technology

[0002] Cement plants generate significant dust pollution, primarily due to the presence of dust and nitrogen oxides from fuel combustion. Dust originates mainly from fugitive emissions from raw material and fuel storage areas, as well as emissions at various production stages. To mitigate the environmental problems caused by excessive dust, almost all cement plants are equipped with cement filter bags for dust control. These bags use physical filtration to capture dust particles generated during production, thereby reducing dust emissions.

[0003] After prolonged use, the dust trapped on the outer wall of the filter bags in a baghouse dust collector increases, gradually reducing the air permeability of the filter bags and thus decreasing the filtration efficiency of the baghouse dust collector. Therefore, the filter bags need to be cleaned after a period of use. Current technology typically uses backflushing air for cleaning. However, the cleanliness of the backflushing air is greatly affected by the backflushing air pressure. To ensure cleanliness, the backflushing air pressure needs to be increased, leading to increased costs for the enterprise.

[0004] Therefore, a bag filter dust removal device for cement plants is needed to solve the above problems. Utility Model Content

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] To address the technical problems mentioned in the background section, some embodiments of this application provide a baghouse dust collector for cement plants, comprising: a baghouse dust collector, wherein a dust removal mechanism is installed inside the baghouse dust collector, the baghouse dust collector is composed of existing technology, including a top cover, pulse valve, fan, blowpipe, air tank, housing, dust inlet, ash hopper, inspection door, and ash discharge port, the dust removal mechanism including four spliced ​​lifting plates, a fixing plate fixedly installed inside the baghouse dust collector, the fixing plate being located at the lower end of the lifting plates, the fixing plate being fixedly connected to the upper part of the dust collector bag, and a fixing block fixedly installed at the upper end of the lifting plates and at the middle of the four lifting plates, the fixing block... A hydraulic telescopic component is fixedly provided at the upper end. The hydraulic telescopic component is installed inside the bag filter dust collector. The hydraulic telescopic component includes a liquid pump fixedly connected to the bag filter dust collector and a telescopic liquid rod connected to the liquid pump. Each lifting plate has evenly distributed insert rings fixedly provided at its upper end. Each insert ring is connected to a dust collector bag at its lower end. A support frame is provided inside the dust collector bag. The support frame is located at the inner end of the dust collector bag to support the dust collector bag. The support frame includes fixed rings and lifting rings evenly distributed vertically. A support mechanism is installed between two adjacent fixed rings and the lifting rings. The support mechanism is used to support the dust collector bag. The inner diameter of the insert ring is the same as the outer diameter of the lifting ring.

[0007] Furthermore, a fixing rod is fixed between two adjacent fixing rings, a limiting ring is fixed at the middle end of each fixing rod, a connecting rod is fixed between two adjacent lifting rings, and a sliding cylinder is fixed on the outer periphery of each lifting ring. The sliding cylinder slides and engages with the fixing rod. A support ring is fixed at the upper end of the sliding cylinder, and the support ring can abut against the support mechanism.

[0008] Furthermore, the fixing ring is fixedly connected to the dust collector bag. Adjacent fixing rings and lifting rings are respectively fixed with a fixed seat and a sliding seat at their close ends. The fixed seats and sliding seats are evenly distributed circumferentially. The support mechanism is connected to the fixed seats and the sliding seats. The support mechanism includes hinge rods hinged to the fixed seats and the sliding seats. Two hinge rods extend close to each other. The close ends of the two hinge rods are hinged with hinge blocks. A support arc is fixed at the middle of the hinge block. The circumferentially arranged support arcs can abut against each other to form a ring. The hinge rods all extend outward at an incline. The number of hinge blocks is the same as the number of support rings. The support rings can abut against the outer hinge blocks.

[0009] The beneficial effects of this application are as follows:

[0010] 1. The lifting ring moves up and down by means of hydraulic telescopic components, and under the action of the support mechanism, it can push the outer end of the dust collector bag to expand outward, thereby increasing the porosity on the surface of the dust collector bag, so that the surface dust removal operation of the dust collector cover and dust collector bag can be performed under a relatively small gas pressure.

[0011] 2. The support mechanism supports the dust collector bag during air filtration, preventing it from being flattened. The hinge rod in the support mechanism is set to an outward tilt, and a support ring is fixed at the outer end of the connecting rod to support the hinge block. This allows the hinge block to transmit force to the fixed rod and the sliding cylinder. The fixed rod and connecting rod provide support and stress relief for the dust collector bag and the support mechanism, preventing the hinge block from swinging inward over long-term use. This also prevents the support mechanism from jamming during the upward movement of the lifting ring, improving stability. Attached Figure Description

[0012] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0013] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a bag filter ash removal device for a cement plant according to this application;

[0016] Figure 2 yes Figure 1 A schematic diagram of the rear appearance of the top cover in the embodiment;

[0017] Figure 3 yes Figure 2 A partial view of the dust removal mechanism in the embodiment;

[0018] Figure 4 yes Figure 3 A schematic diagram of the support frame portion in the embodiment;

[0019] Figure 5 yes Figure 4 A schematic diagram of the connection between the fixing ring and the support mechanism in the embodiment;

[0020] Figure 6 yes Figure 5 A schematic diagram of the front view structure in the embodiment;

[0021] Figure 7 yes Figure 6 A schematic diagram of the connection portion of the support mechanism in the embodiment;

[0022] Figure 8 yes Figure 4 A partial view of the lifting ring in the embodiment;

[0023] Figure 9 yes Figure 6 A magnified view of a portion of point A in the embodiment;

[0024] Figure 10 yes Figure 4 A magnified view of a portion of point B in the embodiment.

[0025] Figure label:

[0026] 10. Baghouse dust collector; 11. Dust removal mechanism; 12. Lifting plate; 13. Hydraulic telescopic component; 14. Fixing block; 15. Insert ring; 16. Dust collector bag; 17. Support frame; 18. Fixing plate; 20. Fixing ring; 21. Fixing seat; 22. Fixing rod; 23. Limiting ring; 30. Lifting ring; 31. Sliding seat; 32. Sliding cylinder; 33. Connecting rod; 34. Support ring; 40. Support mechanism; 41. Hinge rod; 42. Hinge block; 43. Support arc. Detailed Implementation

[0027] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0028] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0029] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0030] It should be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] It should be noted that, in this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0033] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] Reference Figure 1-4A baghouse dust collector for cement plants includes: a baghouse dust collector 10, with a dust collection mechanism 11 installed inside the baghouse dust collector 10. The baghouse dust collector 10 is constructed using existing technology and includes a top cover, pulse valves, a fan, a blower pipe, an air tank, a housing, a dust inlet, a dust hopper, an inspection door, and a dust discharge port. The dust collection mechanism 11 includes four spliced ​​lifting plates 12. A fixing plate 18 is fixedly installed inside the baghouse dust collector 10, located at the lower end of the lifting plates 12. The fixing plate 18 is fixedly connected to the upper part of the dust collector bag 16. A fixing block 14 is fixedly installed at the upper end of the lifting plates 12 and at the middle of the four lifting plates 12. A hydraulic telescopic component 13 is fixedly installed at the upper end of the fixing block 14. 13 is installed inside the bag filter 10. The hydraulic telescopic component 13 includes a liquid pump fixedly connected to the bag filter 10 and a telescopic liquid rod connected to the liquid pump. Each lifting plate 12 has a uniformly distributed insert ring 15 fixed at its upper end. Each insert ring 15 is connected to a dust collector bag 16 at its lower end. A support frame 17 is provided inside the dust collector bag 16. The support frame 17 is located at the inner end of the dust collector bag 16 to support the dust collector bag 16. The support frame 17 includes a fixed ring 20 and a lifting ring 30 evenly distributed at the top and bottom. A support mechanism 40 is installed between two adjacent fixed rings 20 and the lifting ring 30. The support mechanism 40 is used to support the dust collector bag 16. The inner diameter of the insert ring 15 is the same as the outer diameter of the lifting ring 30.

[0035] The bag filter 10 connects the inlet and outlet ends, allowing dusty air from the outside to enter the bag filter 10 through the inlet end. Inside the bag filter 10, the air is filtered by the dust collector bags 16. The filtered air enters the inner end of the dust collector bags 16 through the pores and exits from the upper opening of the dust collector bags 16. The lifting plate 12 blocks the air from the upper and lower parts, thus separating the dusty air from the filtered air. The filtered air is then discharged outward through the outlet end.

[0036] When removing dust from the filter bag 16, the air inlet is closed, and the telescopic hydraulic rod is contracted by the hydraulic pump. This causes the fixed block 14, which is fixedly connected to the telescopic hydraulic rod, to move upward. The fixed block 14 then causes the lifting plate 12, which is fixedly installed at the lower end, to move upward. This causes the lifting plate 12 to pull the lifting ring 30, which is fixedly connected, to move upward. The lifting ring 30 moves upward and separates from the fixed ring 20, thereby allowing the support mechanism 40 to support the filter bag 16 to expand outward. This enlarges the pores of the filter bag 16, making it easier for the gas ejected from the blowpipe to clean the dust filtered on the filter bag 16. The dust is then discharged downward through the ash hopper for centralized collection and treatment.

[0037] Reference Figure 4-8A fixed rod 22 is fixed between two adjacent fixed rings 20. A limiting ring 23 is fixed at the middle end of each fixed rod 22. A connecting rod 33 is fixed between two adjacent lifting rings 30. A sliding cylinder 32 with axial uniform distribution is fixed on the outer periphery of each lifting ring 30. The sliding cylinder 32 slides and cooperates with the fixed rod 22. A support ring 34 is fixed at the upper end of the sliding cylinder 32. The support ring 34 can abut against the support mechanism 40.

[0038] The fixed ring 20 and the lifting ring 30 are connected by a fixed rod 22 and a sliding cylinder 32 to slide up and down. When the lifting ring 30 is pulled by the lifting plate 12, it moves upward along the extension direction of the fixed rod 22, so that the fixed ring 20 and the lifting ring 30 are separated from the contact relationship. Under normal conditions (when filtering air), the support ring 34 fixed on the sliding cylinder 32 can abut against the support mechanism 40 part, thereby supporting and relieving the force on the support mechanism 40 part.

[0039] Reference Figure 4-10 The fixed ring 20 is fixedly connected to the dust collector bag 16. The adjacent fixed ring 20 and the lifting ring 30 are respectively fixed with a fixed seat 21 and a sliding seat 31 at their close ends. The fixed seats 21 and the sliding seats 31 are evenly distributed around the circumference. The support mechanism 40 is connected to the fixed seats 21 and the sliding seats 31. The support mechanism 40 includes a hinge rod 41 hinged to the fixed seat 21 and the sliding seat 31. The two hinge rods 41 extend close to each other. The close ends of the two hinge rods 41 are hinged with hinge blocks 42. The middle end of the hinge block 42 is fixed with a support arc 43. The circumferentially arranged support arcs 43 can abut against each other to form a ring. The hinge rods 41 are all inclined outward. The number of hinge blocks 42 is the same as that of the support ring 34. The support ring 34 can abut against the outer hinge block 42.

[0040] The fixed seat 21 is fixed on the fixed ring 20, which is fixed on the dust collector bag 16. The sliding seat 31 is fixed on the lifting ring 30. The lifting ring 30 is slidably positioned at the fixed ring 20. As the lifting ring 30 moves upward, it drives the sliding seat 31 to move upward while the fixed seat 21 remains stationary. With the connection between the fixed seat 21, the sliding seat 31, the hinge rod 41, and the hinge block 42, and with the hinge rod 41 tilted outward, the two adjacent hinge rods 41 swing outward and simultaneously drive the hinge block 42, which is hinged to the two hinge rods 41, to move outward. The hinge block 42 drives the fixedly connected support arc 43 to move outward, thereby pushing the inner end of the dust collector bag 16 and causing the dust collector bag 16 to expand outward. At this time, the pores at the dust collector bag 16 increase, thereby increasing the surface pores of the dust collector bag 16, allowing the blowpipe to perform surface dust removal on the dust collector bag 16 under a smaller gas pressure.

[0041] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A bag filter dust collector for cement plants, characterized in that, include: Baghouse dust collector (10) and dust collection mechanism (11); The dust removal mechanism (11) includes a fixed plate (18) fixed inside the bag filter (10) and a lifting plate (12) disposed above the fixed plate (18). A fixed block (14) is fixed on the lifting plate (12). A hydraulic telescopic component (13) is installed inside the bag filter (10). The lower end of the hydraulic telescopic component (13) is fixedly connected to the fixed block (14). A dust collector bag (16) is provided at the lower end of the lifting plate (12). A support frame (1) is provided inside the dust collector bag (16). 7) The support frame (17) includes a fixed ring (20) and a lifting ring (30) evenly distributed vertically. A support mechanism (40) is connected between the fixed ring (20) and the lifting ring (30). The support mechanism (40) is used to support the dust collector bag (16). The outer circumferential surface of the fixed ring (20) is fixedly connected to the dust collector bag (16). The fixed ring (20) is fixedly connected to the fixed plate (18). The lifting ring (30) is slidably disposed vertically at the fixed ring (20). The fixed ring (20) and the lifting ring (30) are fixedly provided with a fixed seat (21) and a sliding seat (31). The support mechanism (40) includes a hinge rod (41) hinged to the fixed seat (21) and the sliding seat (31). The hinge rod (41) is inclined outward.

2. The bag filter dust collector for cement plants according to claim 1, characterized in that: A fixing rod (22) is fixed between each of two adjacent fixing rings (20). The fixing rods (22) are evenly distributed around the circumference. Each fixing rod (22) is slidably fitted with a sliding cylinder (32). The sliding cylinder (32) is fixedly connected to the lifting ring (30). A connecting rod (33) is fixed between two adjacent lifting rings (30).

3. A bag filter dust collector for cement plants according to claim 2, characterized in that: The support mechanism (40) further includes a hinge block (42) hinged between two adjacent hinge rods (41), a support arc (43) is fixed at the middle end of the hinge block (42), and a support ring (34) is fixed at the top end of each sliding cylinder (32), the support ring (34) abutting against the hinge block (42).

4. A bag filter dust collector for cement plants according to claim 2, characterized in that: A limiting ring (23) is fixed at the middle end of the fixed rod (22). The limiting ring (23) is inserted into the inner end of the sliding cylinder (32) and slides up and down with the inner end surface of the sliding cylinder (32).

5. A bag filter dust collector for cement plants according to claim 3, characterized in that: The number of the support mechanisms (40) is the same as the number of the fixed rods (22), and the support arcs (43) on the support mechanisms (40) abut against each other on the same circumferential surface to form a circular arrangement.

6. A bag filter dust collector for cement plants according to claim 1, characterized in that: The support frame (17) is arranged in a frame shape and supported on the inner end face of the dust collector bag (16).

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