A flue gas filtering box body convenient to disassemble and maintain

Abstract

The utility model relates to filter equipment technical field discloses a flue gas filter box convenient to dismount and maintain, including box, box side wall is equipped with the flue gas inlet pipe, the air outlet pipe, is connected with the hopper below, is equipped with the flower board in the upper inside, is equipped with detachable filter mechanism in the flower board, the box top is inserted with the box cover, is equipped with a plurality of through -holes on the flower board, and filter mechanism includes the bag cage that crosses through the through -hole, and the rubber ring is equipped with in the side wall of bag cage located flower board lower extreme, and the filter bag is inserted with in bag cage, the box top side wall is equipped with the injection pipe, and the one end that injection pipe stretches out the box is connected with the pulse valve, and the lower side wall is equipped with the air outlet that corresponds with the through -hole, and the box side wall is equipped with the strip -shaped groove that coordinates with injection pipe, and injection pipe slides in the strip -shaped groove before and after, the detachable sealing cover is inserted with in the hopper below, and the rectangular groove is equipped with in the hopper side wall, and the sealing block is inserted with in the rectangular groove. The utility model has the advantages of compared with prior art: convenient to dismount, easy to maintain.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, specifically to a flue gas filter box that is easy to disassemble and maintain. Background Technology

[0002] The flue gas filter box is a key component in industrial dust removal equipment used to filter flue gas. Its function is to purify the dust-laden flue gas through internal filter elements such as filter bags, so that clean gas can be discharged and dust particles can be trapped.

[0003] The dust collector housing mainly consists of an upper housing, a middle housing, and a lower housing with a dust hopper. The upper housing is located at the top of the dust collector and is mainly used to collect clean gas filtered by the filter bags and discharge it through the outlet. It contains key components of the dust removal system, such as blowpipes, compressed air manifolds, and pulse valves. The middle housing is the core filtration area of ​​the dust collector, where dust-laden gas is filtered by filter bags. It contains filter elements, including filter bags, bag cages, and tube sheets. The tube sheets serve to fix the filter bags, form a seal with the filter bags, and separate the bag chamber from the housing. The dust hopper is located at the bottom of the dust collector and is used to collect dust that falls off the filter bags. It usually has a certain taper to ensure that the dust falls smoothly into the hopper and is easily discharged through devices such as ash discharge valves.

[0004] Therefore, the following shortcomings exist when using it:

[0005] 1. The filter element is mainly installed on the tube sheet by bolts. Before disassembling the filter element, the blow pipe needs to be removed first, and then the bolts need to be removed. This makes it inconvenient to replace and repair, and increases maintenance costs and workload.

[0006] 2. If the dust in the ash hopper clumps and clogs, the entire ash hopper or the side panel of the middle box needs to be removed for cleaning, which is complicated and can easily damage the sealing structure. Utility Model Content

[0007] I. Technical problems to be solved

[0008] The technical problem this invention aims to solve is that the filter element and ash hopper are difficult to disassemble and assemble, which affects maintenance costs and filtration efficiency.

[0009] II. Technical Solution

[0010] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a flue gas filter box that is easy to disassemble and maintain, including a box body, a flue gas inlet pipe provided on the side wall of the box body, an ash hopper connected below, a tube sheet provided inside the top, a detachable filter mechanism provided inside the tube sheet, and an air outlet pipe provided on the side wall of the box body above the tube sheet.

[0011] The box body is fitted with a detachable box cover. The tube sheet is evenly provided with multiple through holes. The filtration mechanism includes a bag cage that passes through the through holes. The through holes and the bag cage are fitted with a sliding groove. The bag cage has no top or bottom cover, has a T-shaped cross section, and has a rubber ring with a diameter larger than the through hole on the side wall at the lower end of the tube sheet. A filter bag is inserted into the bag cage.

[0012] The upper side wall of the box is provided with multiple left and right blowing pipes corresponding to a row of through holes in the left and right directions. One end of the blowing pipe extending out of the box is connected to a pulse valve. The lower side wall is provided with an air outlet corresponding to the through holes. The side wall of the box is provided with a strip groove that cooperates with the blowing pipe. The blowing pipe slides back and forth in the strip groove.

[0013] A removable sealing cover is inserted below the ash hopper, and a rectangular groove is provided on the side wall of the ash hopper, into which a sealing block is inserted.

[0014] As an improvement, the filter bag includes an insert that mates with a bag cage and a bag body connected to the lower end of the insert. The insert has a T-shaped cross-section and a rubber ring on its outer side wall. The inner wall of the bag cage has an annular groove that mates with the rubber ring.

[0015] As an improvement, the sealing cover is a shell structure that fits onto the lower end of the ash hopper, and the side wall is fitted with a threaded limiting bolt that is inserted into the outer wall of the ash hopper.

[0016] As an improvement, a mortar-tamping frame that is inserted into the ash hopper is provided above the sealing cover.

[0017] As an improvement, the sealing block is made of rubber, and the length and width of one end located inside the ash hopper are greater than the length and width of the rectangular groove.

[0018] As an improvement, a limiting frame that is in contact with the outer wall of the box is fixedly sleeved at one end of the blow pipe outside the box. A connecting plate is provided between the lower ends of the limiting frame. A rubber protrusion is provided at the lower end of the connecting plate. A support plate that is in contact with the connecting plate is provided on the side wall of the box. A notch that cooperates with the protrusion is provided above the support plate. The distance between the notches is equal to the distance that the blow pipe can move in the strip groove.

[0019] As an improvement, both the outer end of the box cover and the sealing block are connected to an arc-shaped handle.

[0020] As an improvement, the bag cage is provided with opposing T-shaped pull rods above it.

[0021] III. Beneficial Effects

[0022] The advantages of this utility model compared with the prior art are as follows:

[0023] 1. The bag cage of this utility model has no top or bottom cover and a T-shaped cross-section. A rubber ring is provided on the lower side wall. During installation, the bag cage is simply inserted from top to bottom through the through hole in the tube sheet. The transverse part of the T-shaped structure can directly fasten onto the tube sheet, while the rubber ring fits tightly against the lower end face of the tube sheet, forming a reliable seal. A sliding groove is provided between the bag cage and the through hole to restrict the rotation of the bag cage and stabilize its position. No bolts are required for fixing, eliminating the step of removing bolts. The filter bag insert also has a T-shaped cross-section with a rubber ring on the outer side wall, and the inner wall of the bag cage... An annular groove should be provided so that the filter bag can be directly inserted into the bag cage. The rubber ring engages and fixes with the annular groove, enabling quick assembly and separation of the filter bag and the bag cage. The blow pipe is installed horizontally through the strip groove on the side wall of the housing and can slide back and forth along the strip groove. The blow pipe corresponds one-to-one with the through holes on the tube sheet. When it is necessary to disassemble or assemble a single filter unit or a row of filter units, there is no need to remove the blow pipe. Simply slide the corresponding blow pipe along the strip groove to a position away from the through hole, and the bag cage and filter bag can be directly removed from above the tube sheet, making the disassembly and assembly of the filter element convenient.

[0024] 2. The sealing cover of this utility model is directly inserted into the bottom of the ash hopper. The sealing cover is threaded to the outer wall of the ash hopper through the limiting bolts on the side wall, which is reliable and easy to install and remove. A rectangular groove is opened on the side wall of the ash hopper, and a rubber sealing block is inserted into the groove. When the ash hopper is clogged with clumps in the middle or side wall, there is no need to remove the ash hopper or the side plate of the box. Just pull out the sealing block and you can use a tool to clean the blockage through the rectangular groove. After cleaning, reinsert the sealing block to restore the seal. The operation is simple and completely avoids damage to the sealing structure. Attached Figure Description

[0025] Figure 1 This is a structural diagram of a flue gas filter box that is easy to disassemble and maintain according to this utility model.

[0026] Figure 2 This is an exploded view of a flue gas filter box that is easy to disassemble and maintain according to this utility model.

[0027] Figure 3 This is an exploded view of the internal structure of a flue gas filter box that is easy to disassemble and maintain, according to this utility model.

[0028] Figure 4 This is a schematic diagram of the structure of a flue gas filter box that is easy to disassemble and maintain, according to this utility model. Figure 2 .

[0029] Figure 5 This utility model relates to an explosion-proof flue gas filter housing that is easy to disassemble and maintain. Figure 2 .

[0030] Figure 6 This is a cross-sectional structural diagram of a flue gas filter box that is easy to disassemble and maintain according to this utility model.

[0031] As shown in the figure: 1. Box body; 2. Smoke inlet pipe; 3. Ash hopper; 4. Tube plate; 5. Air outlet pipe; 6. Box cover; 7. Through hole; 8. Bag cage; 9. Rubber ring; 10. Filter bag; 11. Pull rod; 12. Rubber ring; 13. Annular groove; 14. Sealing cover; 15. Ash tamping frame; 16. Rectangular groove; 17. Sealing block; 18. Pulse pipe; 19. Pulse valve; 20. Strip groove; 21. Limiting bolt; 22. Handle; 23. Limiting frame; 24. Connecting plate; 25. Protrusion; 26. Support plate; 27. Notch. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0033] As attached Figure 1-6 As shown, a flue gas filter box that is easy to disassemble and maintain includes a box body 1. The side wall of the box body 1 is provided with a flue gas inlet pipe 2, and the bottom is connected to an ash hopper 3. The top interior is provided with a tube sheet 4, and the tube sheet 4 is provided with a detachable filter mechanism. The side wall of the box body 1 above the tube sheet 4 is provided with an exhaust pipe 5. Flue gas enters the box body 1 from the flue gas inlet pipe 2, is filtered by the filter mechanism, and clean air is discharged from the exhaust pipe 5.

[0034] A removable cover 6 is inserted into the top of the housing 1. Multiple through holes 7 are evenly distributed on the tube sheet 4. The filtration mechanism includes a bag cage 8 passing through the through holes 7. A sliding groove is provided between the through holes 7 and the bag cage 8. The bag cage 8 has no top or bottom cover, has a T-shaped cross-section, and a rubber ring 9 with a diameter larger than the through holes 7 is provided on the side wall at the lower end of the tube sheet 4. During installation, the bag cage 8 is simply inserted from top to bottom through the through holes 7 of the tube sheet 4. The horizontal part of the T-shaped structure can be directly fastened onto the tube sheet 4, and the rubber ring 9 fits tightly against the lower end face of the tube sheet 4, forming a reliable seal. The sliding groove between the bag cage and the through holes restricts the rotation of the bag cage, ensuring its stable position. No bolts are required for fixing, eliminating the need to remove bolts. In this process, the side wall of the bag cage 8 located below the rubber ring 9 is evenly provided with multiple vertical through grooves along the circumference. A filter bag 10 is inserted into the bag cage 8. The filter bag 10 includes an insert that cooperates with the bag cage 8 and a bag body connected to the lower end of the insert. The insert has a T-shaped cross-section and a rubber ring 12 on its outer side wall. The inner wall of the bag cage 8 has an annular groove 13 that cooperates with the rubber ring 12. The insert of the filter bag 10 also has a T-shaped cross-section and a rubber ring 12 on its outer side wall. The inner wall of the bag cage 8 has a corresponding annular groove 13. The filter bag 10 can be directly inserted into the bag cage 8. The rubber ring 12 and the annular groove 13 engage and fix it, realizing the rapid assembly and separation of the filter bag 10 and the bag cage 8, and the bag cage 8 and the tube sheet 4, which is convenient for disassembly and assembly.

[0035] Furthermore, the bag cage 8 is provided with a T-shaped pull rod 11 on top, making it easier to assemble and disassemble the bag cage 8.

[0036] The upper side wall of the housing 1 is provided with a plurality of left and right blowing pipes 18 corresponding to a row of left and right through holes 7. One end of the blowing pipe 18 extending out of the housing 1 is connected to a pulse valve 19. The lower side wall is provided with an air outlet corresponding to the through holes 7. The side wall of the housing 1 is provided with a strip groove 20 that cooperates with the blowing pipe 18. The blowing pipe 18 slides back and forth in the strip groove 20. When it is necessary to disassemble or assemble a single or a row of filter mechanisms, it is not necessary to remove the blowing pipe 18. It is only necessary to slide the corresponding blowing pipe 18 along the strip groove 20 to a position away from the through hole 7, and then open the housing cover 6. The bag cage 8 and filter bag 10 can be taken out directly from above the tube sheet 4, making the disassembly and assembly of the filter element convenient.

[0037] Furthermore, a limiting frame 23 that is in contact with the outer wall of the box 1 is fixedly sleeved at one end of the blow pipe 18 located outside the box 1. A connecting plate 24 is provided between the lower ends of the limiting frame 23. A rubber protrusion 25 is provided at the lower end of the connecting plate 24. A support plate 26 that is in contact with the connecting plate 24 is provided on the side wall of the box 1. A notch 27 that cooperates with the protrusion 25 is provided above the support plate 26. The distance between the notches 27 is equal to the distance that the blow pipe 18 can move in the strip groove 20. The cooperation between the notch and the protrusion 25 is used to limit the movement position of the blow pipe 18, so that the blow pipe 18 can move to exactly correspond to the through hole 7 and completely deviate from the through hole 7.

[0038] A detachable sealing cover 14 is inserted below the ash hopper 3. The sealing cover 14 is a shell structure that fits onto the lower end of the ash hopper 3, and a limiting bolt 21 with threads inserted into the outer wall of the ash hopper 3 is inserted into the side wall. It is reliable and easy to install and remove. The side wall of the ash hopper 3 is provided with a rectangular groove 16. A sealing block 17 is inserted into the rectangular groove 16. The sealing block 17 is made of rubber, and the length and width of the end located inside the ash hopper 3 are greater than the length and width of the rectangular groove 16. When the ash hopper 3 is clogged or blocked in the middle or side wall, it is not necessary to remove the ash hopper 3 or the side plate of the box 1. Just pull out the sealing block 17, and you can use a tool to clean the blockage through the rectangular groove 16. After cleaning, reinsert the sealing block 17 to restore the seal. The operation is simple and completely avoids damage to the sealing structure.

[0039] Furthermore, the sealing cover 14 is provided with a dust-cleaning frame 15 that is inserted into the dust hopper 3, which can clean the dust that is blocked in the lower end of the dust hopper 3; the outer ends of the box cover 6 and the sealing block 17 are both connected with arc-shaped handles 22, which are convenient for gripping and disassembling the device.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0042] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A flue gas filter housing that is easy to disassemble and maintain, comprising a housing (1), a flue gas inlet pipe (2) provided on the side wall of the housing (1), an ash hopper (3) connected below, a tube sheet (4) provided inside the upper part, a detachable filter mechanism provided inside the tube sheet (4), and an exhaust pipe (5) provided on the side wall of the housing (1) above the tube sheet (4), characterized in that: The box body (1) is fitted with a detachable box cover (6) on top. The tube sheet (4) is provided with multiple through holes (7) evenly. The filter mechanism includes a bag cage (8) that passes through the through hole (7). The through hole (7) and the bag cage (8) are fitted with a sliding groove. The bag cage (8) has no top or bottom cover, and its cross-section is T-shaped. The side wall at the lower end of the tube sheet (4) is provided with a rubber ring (9) with a diameter larger than the through hole (7). The bag cage (8) is fitted with a filter bag (10). The upper side wall of the box (1) is provided with a plurality of left and right blowing pipes (18) corresponding to a row of left and right through holes (7). One end of the blowing pipe (18) extending out of the box (1) is connected to a pulse valve (19). The lower side wall is provided with an air outlet corresponding to the through hole (7). The side wall of the box (1) is provided with a strip groove (20) that cooperates with the blowing pipe (18). The blowing pipe (18) slides back and forth in the strip groove (20). A removable sealing cap (14) is inserted below the ash hopper (3), and a rectangular groove (16) is provided on the side wall of the ash hopper (3), and a sealing block (17) is inserted into the rectangular groove (16).

2. The flue gas filter housing that is easy to disassemble and maintain according to claim 1, characterized in that: The filter bag (10) includes an insert that cooperates with the bag cage (8) and a bag body connected to the lower end of the insert. The insert has a T-shaped cross-section and a rubber ring (12) on its outer side wall. The inner wall of the bag cage (8) has an annular groove (13) that cooperates with the rubber ring (12).

3. The flue gas filter housing that is easy to disassemble and maintain according to claim 1, characterized in that: The sealing cover (14) is a shell structure that fits onto the lower end of the ash hopper (3), and a limiting bolt (21) with a thread inserted into the outer wall of the ash hopper (3) is inserted into the side wall.

4. The flue gas filter housing that is easy to disassemble and maintain according to claim 3, characterized in that: The sealing cover (14) is provided with a mortar frame (15) that is inserted into the ash hopper (3).

5. The flue gas filter housing that is easy to disassemble and maintain according to claim 1, characterized in that: The sealing block (17) is made of rubber, and the length and width of one end located in the ash hopper (3) are greater than the length and width of the rectangular groove (16).

6. The flue gas filter housing that is easy to disassemble and maintain according to claim 1, characterized in that: The blow pipe (18) is fixedly sleeved at one end outside the box (1) with a limiting frame (23) that is in contact with the outer wall of the box (1). A connecting plate (24) is provided between the lower ends of the limiting frame (23). A rubber protrusion (25) is provided at the lower end of the connecting plate (24). A support plate (26) is provided on the side wall of the box (1) that is in contact with the connecting plate (24). A notch (27) that cooperates with the protrusion (25) is provided above the support plate (26). The distance between the notches (27) is equal to the distance that the blow pipe (18) can move in the strip groove (20).

7. A flue gas filter housing that is easy to disassemble and maintain according to claim 1, characterized in that: Both the outer ends of the box cover (6) and the sealing block (17) are connected to arc-shaped handles (22).

8. A flue gas filter housing that is easy to disassemble and maintain according to claim 1, characterized in that: The bag cage (8) is provided with opposing T-shaped pull rods (11) on top.

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