Bag-type dust collector for dry flue gas desulfurization and denitrification

Abstract

The bag-type dust remover comprises a machine body and a plurality of groups of dust filtering hanging bags, a sealing cover plate is embedded in the top end of the machine body in a sealing mode, and a filtering box is embedded in the inner wall of the machine body and located at the top ends of the plurality of groups of dust filtering hanging bags. Two groups of connecting hooks are correspondingly mounted on the left and right sides of the top end of the mounting filter box and the bottom end of the sealing cover plate, extension springs are hung and buckled between the two groups of connecting hooks, and an annular mounting sleeve plate is mounted on the inner wall of the machine body and located on the outer sides of the multiple groups of dust filtering hanging bags; the dust removal device has the advantages that through the elastic stretching and swinging dust removal structure and the swinging type quantity control cleaning structure, the convenience of overall cleaning of the dust filtration hanging bags is improved, the filtering and dust removal effect is also improved, the dust removal effect is improved, the dust removal efficiency is improved, and the dust removal device is suitable for popularization and application. And meanwhile, the conveying amount of smoke dust and the cleaning effect on the smoke injection opening are improved, and implementation is faster and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of dry flue gas desulfurization and denitrification equipment, in particular to a bag dust collector for dry flue gas desulfurization and denitrification. Background Art

[0002] Flue gas desulfurization and denitrification technology is a boiler flue gas purification technology used in the chemical industry that produces a lot of nitrogen oxides and sulfur oxides. Since nitrogen oxides and sulfur oxides are one of the main sources of air pollution, the application of this technology has many benefits for environmental air purification. There are many existing flue gas desulfurization and denitrification technical methods, especially the dry flue gas desulfurization and denitrification technology carried out by bag dust collector, which is widely used in the market.

[0003] After searching, the Chinese patent authorization number CN202220605606.8 discloses a bag-type dust collector device for semi-dry flue gas desulfurization and denitrification, including a bag-type dust collector body and a filter bag frame, the filter bag frame is installed inside the bag-type dust collector body, and the outer surface of the bag-type dust collector body is provided with a dust inlet and a dust outlet, and an ash discharge device is installed at the lower end of the bag-type dust collector body, the dust inlet is connected to the inside of the dust inlet, and the inside of the filter is penetrated by a control shaft, the outer surface of the control shaft is sleeved with a sleeve, and the outer surface of the sleeve is connected with a baffle.

[0004] The semi-dry flue gas desulfurization and denitrification bag dust collector device in the above patent has the following shortcomings: First, the multiple filter bags of the filter bag frame in the above device are also prone to blockage when filtering smoke dust, and generally need to be disassembled and replaced as a whole. This method not only reduces the convenience of overall use, but also reduces the filtering and dust removal effect. Secondly, the above device uses a rotary cleaning adjustment structure to adjust the input amount and cleaning effect at the dust gas inlet, but the drive of the control shaft generally needs to be completed manually or by an external drive mechanism, which is more complicated to implement and the control and cleaning effects are low.

[0005] To this end, we propose a bag filter for dry flue gas desulfurization and denitrification to solve the above problems. Utility Model Content

[0006] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0007] To this end, the technical solution adopted in this utility model is:

[0008] A bag dust collector for dry flue gas desulfurization and denitrification comprises a body and a plurality of groups of dust filter bags, the top of the body is embedded with a sealing cover plate, the inner wall of the body is located at the top of the plurality of groups of dust filter bags and is embedded with a filter box, the top of the filter box and the bottom of the sealing cover plate are respectively provided with two groups of connecting hooks, a tension spring is hung and buckled between the two groups of connecting hooks, an annular mounting sleeve is installed on the inner wall of the body at the outside of the plurality of groups of dust filter bags, a plurality of groups of elastic top blocks are installed on the side of the annular mounting sleeve close to the plurality of groups of dust filter bags, the bottom end of the annular mounting sleeve is symmetrically provided with suspension rods, and the bottom end of the suspension rods is provided with a movable cotton plug.

[0009] In a preferred example, the present invention can be further configured as follows:

[0010] By adopting the above technical solution, an exhaust valve pipe is installed through the top right side of the body, a through hole is opened at the top of the filter box, and multiple groups of dust filter bags are embedded and installed at the bottom end of the filter box.

[0011] In a preferred example, the present invention can be further configured as follows:

[0012] By adopting the above technical solution, one end of the multiple groups of elastic top blocks are respectively in contact with the outer side surfaces of the multiple groups of dust filter bags, and a sealing plug is embedded and clamped on the outer side of the filter box close to the inner wall of the body.

[0013] In a preferred example, the present invention can be further configured as follows:

[0014] By adopting the above technical solution, smoke injection pipes are symmetrically opened on both sides of the bottom end of the body, two groups of lifting blocks are respectively installed on both sides of the top end of the movable cotton plug and both sides of the bottom end of the annular mounting sleeve, and a rotating shaft is installed in the middle of the inner side of the two groups of lifting blocks.

[0015] In a preferred example, the present invention can be further configured as follows:

[0016] By adopting the above technical solution, the upper and lower ends of the suspension rod are rotatably sleeved on the outer side of the rotating shaft, and the two sides of the movable cotton plug are slidably embedded in the inner side of the smoke injection tube.

[0017] In a preferred example, the present invention can be further configured as follows:

[0018] By adopting the above technical solution, a mounting support frame is provided on the outer side of the machine body, and the machine body is mounted on the middle part of the top end of the mounting support frame.

[0019] In a preferred example, the present invention can be further configured as follows:

[0020] By adopting the above technical solution, an ash discharge hole is opened at the bottom end of the machine body, an elastic sealing squeeze pad is connected to the bottom end of the machine body, and a collection box is fitted on the bottom end of the elastic sealing squeeze pad.

[0021] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0022] 1. In the utility model, a tension spring, an annular mounting sleeve and multiple groups of elastic top blocks are provided. When in use, the filter box is installed because of the elastic connection between the tension spring and the sealing cover plate. When smoke and dust are continuously injected into the interior of the machine body, the force generated is due to the elastic effect of the tension spring. Multiple dust filter bags are continuously shaken and pass through the multiple groups of elastic top blocks on the annular mounting sleeve to bounce off the dust stuck thereon. This reduces the operation of replacement and cleaning, improves the overall convenience of use, and also improves the effect of filtering and dust removal.

[0023] 2. In the utility model, a hanging rod and a movable cotton plug are arranged. When in use, the hanging rod is rotated and hung between the annular mounting sleeve and the movable cotton plug through the hanging block and the rotating shaft respectively. In the above-mentioned beneficial effects, when multiple groups of dust filter bags are constantly swinging, the hanging rod is impacted, so that the hanging rod drives the movable cotton plug to swing to open the smoke injection pipe horizontally for sealing and cleaning. In this way, the quantity control and cleaning effects are improved, and the implementation is also relatively quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view structural schematic diagram of an embodiment of the utility model;

[0025] Figure 2 This is a front cross-sectional structural schematic diagram of an embodiment of the utility model;

[0026] Figure 3 This is a schematic diagram of the local structure of the filter box installation according to one embodiment of the utility model.

[0027] Reference numerals:

[0028] 1. Machine body; 2. Mounting support frame; 3. Sealing cover plate; 4. Exhaust valve pipe; 5. Smoke injection pipe; 6. Collecting box; 7. Tension spring; 8. Install filter box; 9. Dust filter bag; 10. Annular mounting sleeve; 11. Elastic top block; 12. Sealing plug pad; 13. Hanging rod; 14. Moving cotton plug; 15. Ash discharge hole; 16. Lifting block; 17. Through hole; 18. Connecting hook; 19. Elastic sealing extrusion pad; 20. Rotating shaft. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0030] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0031] A bag filter for dry flue gas desulfurization and denitrification provided by some embodiments of the utility model will be described below in conjunction with the accompanying drawings.

[0032] Embodiment 1:

[0033] Combination Figure 1-Figure 3 As shown, the utility model provides a bag filter for dry flue gas desulfurization and denitrification.

[0034] Specifically, it includes a machine body 1 and multiple groups of dust filter bags 9, the top of the machine body 1 is embedded with a sealing cover plate 3, the inner wall of the machine body 1 is located at the top of the multiple groups of dust filter bags 9 and is embedded with a filter box 8, the top of the filter box 8 is installed and two groups of connecting hooks 18 are installed on the left and right sides of the bottom of the sealing cover plate 3, the connecting hook 18 is mainly convenient for the connection and hanging of the tension spring 7, and is convenient for subsequent disassembly and assembly, and a tension spring 7 is hung and buckled between the two groups of connecting hooks 18, the inner wall of the machine body 1 is located on the outside of the multiple groups of dust filter bags 9 and is installed with an annular mounting sleeve 10, the side of the annular mounting sleeve 10 close to the multiple groups of dust filter bags 9 is installed with multiple groups of elastic top blocks 11, the bottom end of the annular mounting sleeve 10 is symmetrically provided with a suspension rod 13, the bottom end of the suspension rod 13 is provided with a movable cotton plug 14, the exhaust valve pipe 4 is installed through the right side of the top of the machine body 1, the exhaust valve pipe 4 is mainly used to discharge the smoke gas after filtering, and the installation The top of the filter box 8 is provided with a through hole 17, which is mainly used to facilitate the introduction of filtered gas into the top of the machine body 1 and to facilitate discharge through the exhaust valve pipe 4. Multiple groups of dust filter bags 9 are embedded and installed at the bottom end of the filter box 8, and one end of multiple groups of elastic top blocks 11 are respectively abutted against the outer side surfaces of multiple groups of dust filter bags 9. The outer side of the filter box 8 is embedded and connected with a sealing plug gasket 12 near the inner wall of the machine body 1. The sealing plug gasket 12 is mainly used to improve the sealing between the filter box 8 and the machine body 1. The use of the above-mentioned components, the impact of the injected smoke on the multiple groups of dust filter bags 9, and the elastic effect of the lifting spring 7, make the multiple dust filter bags 9 shake more, and then the multiple groups of elastic top blocks 11 on the annular mounting sleeve 10 are bounced, so that the dust on the multiple dust filter bags 9 is bounced off, while reducing the operation of replacement and cleaning, improving the overall convenience of use and improving the effect of filtering and dust removal.

[0035] Embodiment 2:

[0036] Combination Figure 2As shown, based on the first embodiment,

[0037] Specifically, smoke injection pipes 5 are symmetrically provided on both sides of the bottom end of the machine body 1, and two groups of lifting blocks 16 are respectively installed on both sides of the top end of the movable cotton plug 14 and both sides of the bottom end of the annular mounting sleeve 10, and a rotating shaft 20 is installed in the middle of the inner side of the two groups of lifting blocks 16. The rotating shaft 20 is mainly used to facilitate the rotation of the suspension rod 13. The upper and lower ends of the suspension rod 13 are rotatably sleeved on the outer side of the rotating shaft 20, and the two sides of the movable cotton plug 14 are slidably embedded in the inner side of the smoke injection pipe 5. The use of the above-mentioned components and the components in the first embodiment, especially the continuous swinging of multiple groups of dust filter bags 9, causes the suspension rod 13 to be impacted, and the suspension rod 13 continuously drives the movable cotton plug 14 to swing to perform transverse sealing, opening and cleaning operations on the smoke injection pipe 5, thereby controlling the amount of smoke injection and cleaning the smoke injection pipe 5 at the same time, and the overall implementation is also relatively quick and convenient.

[0038] Combination Figure 1 and Figure 2 As shown, in the above embodiment,

[0039] Specifically, an installation support frame 2 is provided on the outside of the body 1, and the installation support frame 2 is mainly used to support and stabilize the body 1 and facilitate the installation of the body 1. The body 1 is mounted on the middle of the top of the installation support frame 2, and an ash discharge hole 15 is opened at the bottom of the body 1. The ash discharge hole 15 is mainly used to guide the filtered dust into the collection box 6 for collection. The bottom end of the body 1 is connected to an elastic sealing extrusion pad 19, and the elastic sealing extrusion pad 19 is mainly used to improve the sealing between the ash discharge hole 15 and the collection box 6 to prevent dust from overflowing. The bottom end of the elastic sealing extrusion pad 19 is fitted with a collection box 6.

[0040] The working principle and use process of the utility model are as follows: first, when in use, when smoke is continuously injected into the machine body 1 through the smoke injection pipe 5, the force generated impacts the multiple groups of dust filter hanging bags 9, so that the installation filter box 8 is continuously moved up and down through the sealing plug pad 12, and at the same time, the elastic action of the pulling spring 7 suspended by the connecting hook 18 between the installation filter box 8 and the sealing cover plate 3 makes the multiple dust filter hanging bags 9 shake more, and continuously impact the multiple groups of elastic top blocks 11 on the annular installation sleeve 10, and the reaction force bounces off the dust stuck on the multiple dust filter hanging bags 9 to prevent clogging. This not only reduces the operation of replacement and cleaning, improves the overall convenience of use, but also improves the effect of filtering and dust removal. Secondly, during use, the use of the above-mentioned components, especially when multiple groups of dust filter bags 9 are constantly swinging, the suspension rod 13 is impacted, and due to the setting of the suspension block 16 and the rotating shaft 20, the suspension rod 13 is rotated and suspended between the annular mounting sleeve 10 and the movable cotton plug 14. In this way, the impact force causes the suspension rod 13 to continuously drive the movable cotton plug 14 to swing to transversely seal and open the smoke injection pipe 5, and also clean it at the same time. In this way, the control and cleaning effects are improved, and the implementation is also faster and more convenient.

[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A bag filter for dry flue gas desulfurization and denitrification, comprising a body (1) and a plurality of groups of dust filter hanging bags (9), wherein a sealing cover plate (3) is embedded and sealed at the top of the body (1), characterized in that: The inner wall of the machine body (1) is located at the top of the multiple groups of dust filter bags (9) and is embedded with a filter box (8). The top of the filter box (8) and the bottom of the sealing cover plate (3) are respectively provided with two groups of connecting hooks (18) on the left and right sides thereof. A tension spring (7) is hung and buckled between the two groups of connecting hooks (18). The inner wall of the machine body (1) is located at the outside of the multiple groups of dust filter bags (9) and is provided with an annular mounting sleeve (10). The side of the annular mounting sleeve (10) close to the multiple groups of dust filter bags (9) is provided with multiple groups of elastic top blocks (11). The bottom end of the annular mounting sleeve (10) is symmetrically provided with a suspension rod (13), and the bottom end of the suspension rod (13) is provided with a movable cotton plug (14).

2. A bag filter for dry flue gas desulfurization and denitrification according to claim 1, characterized in that: An exhaust valve pipe (4) is installed through the right side of the top of the machine body (1), a through hole (17) is opened at the top of the filter box (8), and multiple groups of dust filter bags (9) are embedded and installed at the bottom of the filter box (8).

3. The bag filter for dry flue gas desulfurization and denitrification according to claim 1, characterized in that: One end of the plurality of groups of elastic top blocks (11) respectively abuts against the outer side surfaces of the plurality of groups of dust filter hanging bags (9), and a sealing plug gasket (12) is embedded and clamped on the outer side of the filter box (8) close to the inner wall of the machine body (1).

4. The bag filter for dry flue gas desulfurization and denitrification according to claim 1, characterized in that: Smoke injection pipes (5) are symmetrically provided on both sides of the bottom end of the machine body (1), and two groups of lifting blocks (16) are correspondingly installed on both sides of the top end of the movable cotton plug (14) and on both sides of the bottom end of the annular mounting sleeve (10), and a rotating shaft (20) is installed in the middle of the inner side of the two groups of lifting blocks (16).

5. A bag filter for dry flue gas desulfurization and denitrification according to claim 4, characterized in that: The upper and lower ends of the suspension rod (13) are rotatably sleeved on the outside of the rotating shaft (20), and the two sides of the movable cotton plug (14) are slidably embedded in the inner side of the smoke injection pipe (5).

6. The bag filter for dry flue gas desulfurization and denitrification according to claim 1, characterized in that: A mounting support frame (2) is provided on the outer side of the machine body (1), and the machine body (1) is mounted on the middle part of the top end of the mounting support frame (2).

7. The bag filter for dry flue gas desulfurization and denitrification according to claim 1, characterized in that: The bottom end of the machine body (1) is provided with an ash discharge hole (15), the bottom end of the machine body (1) is connected with an elastic sealing extrusion pad (19), and the bottom end of the elastic sealing extrusion pad (19) is fitted with a collection box (6).

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