Blast furnace gas bag dust removal device

Abstract

The utility model belongs to dust removal device field, concretely relates to a blast furnace gas cloth bag dust removal device, including the casing, the right side upper portion of casing is fixedly connected with the gas outlet, the left side lower portion of casing is fixedly connected with the gas inlet, the top of casing is equipped with the top cover through the bolt mounting, the bottom of top cover is provided with the dust shaking mechanism, the inside upper portion of casing is fixedly connected with the support ring, the inside sliding connection of support ring has dust removal cloth bag. The utility model is provided with the dust shaking mechanism on the top cover of casing, wherein, the rotation of the rotating shaft is driven through the motor, the periodic impact of the slide pin is brought about by the impact rod on the rotating shaft, the slide pin drives the impact pin to retract and extend, thereby the periodic knocking of the dust removal cloth bag is carried out, makes it vibrate, thereby the purpose that prevents the dust removal cloth bag from being blocked is reached.

Description

Technical Field

[0001] This utility model relates to the technical field of dust removal devices, specifically a bag filter dust removal device for blast furnace gas. Background Technology

[0002] The blast furnace gas bag filter is a device used for dust removal from blast furnace gas. Its working principle is to pass the dust-laden gas through the bag filter, and use the pores on the surface of the filter bag to filter out the dust particles, so that the purified gas can be discharged into the atmosphere, while the captured dust particles are collected.

[0003] A search revealed a utility model patent with patent authorization announcement number CN116574857B, which discloses a blast furnace gas bag filter dust collector, including a bag filter dust collector connected to an external blast furnace. The bag filter dust collector is connected to an external gas combustion device via an exhaust pipe. The feature is that it also includes a backflushing system, which includes a backflushing pipe, a refrigerated dryer, a reheater, a pressure-stabilizing gas storage tank, a pulse steam drum, and a backflushing valve group. The backflushing pipe is connected to the exhaust pipe.

[0004] Existing baghouse dust collectors are prone to clogging due to the continuous trapping of dust in their filter bags, which affects subsequent gas filtration. Furthermore, they are not easy to remove for disassembly, cleaning, or replacement. Utility Model Content

[0005] The purpose of this utility model is to provide a blast furnace gas bag filter dust collector, which solves the problem that existing bag filters are prone to clogging due to continuous dust trapping, thus affecting subsequent gas filtration. It also solves the problem that it is inconvenient to remove the filter bags for disassembly, cleaning, or replacement.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a blast furnace gas bag filter dust collector, comprising a housing, an air outlet fixedly connected to the upper right side of the housing, an air inlet fixedly connected to the lower left side of the housing, a top cover bolted to the top of the housing, a dust shaking mechanism at the bottom of the top cover, a support ring fixedly connected to the upper inner side of the housing, a dust collector bag slidably connected to the inner side of the support ring, a pad ring fixedly connected to the dust collector bag and in contact with the support ring, a quick-release mechanism shared between the support ring and the pad ring, and a support frame welded to the bottom of the housing.

[0007] Preferably, a flow guide shroud is fixedly connected to the center of the inner side of the housing, and the flow guide shroud is slidably connected to the dust collector bag. The flow guide shroud allows gas to be introduced into the shroud.

[0008] Preferably, a sealing ring is embedded at the bottom of the gasket, and the sealing ring contacts the support ring. The sealing ring increases the sealing performance between the gasket and the support ring.

[0009] Preferably, the dust-shaking mechanism includes a fixed frame fixedly connected to the bottom of the top cover. A motor is fixedly mounted on the fixed frame. The output shaft of the motor passes through the fixed frame and is connected to it via a bearing. A rotating shaft is fixedly connected to the end of the output shaft, and a striking rod is fixedly connected to the end of the rotating shaft. A hollow sleeve is fixedly connected to the bottom of the fixed frame. A striking pin is slidably connected to the inner side of the hollow sleeve, and the striking pin abuts against the dust collector bag. A spring is provided inside the hollow sleeve. One end of the spring is fixedly connected to the striking pin, and the other end is fixedly connected to the inner surface of the hollow sleeve. A sliding pin is fixedly connected to the pin of the striking pin, passing through the hollow sleeve and slidably connected to it. The position of the sliding pin corresponds to the striking rod. Through the dust-shaking mechanism, the dust collector bag is periodically shaken, thereby achieving the purpose of preventing clogging.

[0010] Preferably, the quick-release mechanism includes a slide rod slidably connected inside the support ring. A locking block is fixedly connected to the upper section of the slide rod, and the locking block engages with a washer ring. A guide rod is fixedly connected inside the support ring, and the guide rod passes through the slide rod and is slidably connected to it. The quick-release mechanism facilitates the rapid disassembly of the dust collector bag.

[0011] Preferably, a rubber retaining bead is fixedly connected to the retaining block, and the rubber retaining bead engages with the washer ring. The rubber retaining bead increases the strength of the engagement between the retaining block and the washer ring.

[0012] Preferably, a second spring is sleeved on the outer side of the guide rod. One end of the second spring is fixedly connected to the slide rod, and the other end of the second spring is fixedly connected to the inner surface of the support ring. The elastic force of the second spring can act on the slide rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model provides a dust-shaking mechanism on the top cover of the casing. The rotating shaft is driven by an electric motor, and the rotating shaft has a striking rod that periodically strikes the sliding pin. The sliding pin causes the striking pin to extend and retract, thereby periodically striking the dust collector bag and causing it to vibrate, thus preventing the dust collector bag from clogging.

[0015] 2. This utility model provides a support ring on the inner side of the housing and a pad ring on the dust collector bag. The dust collector bag is supported on the support ring by the pad ring, and the support ring is equipped with a disassembly and assembly mechanism. The dust collector bag can be disassembled and assembled by controlling the engagement and disengagement between the slider on the control rod and the pad ring, which facilitates the replacement of the dust collector bag in the future. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A partial structural diagram;

[0018] Figure 3 This utility model Figure 1 A front sectional view;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A;

[0020] Figure 5 This utility model Figure 3 Enlarged view of point B.

[0021] In the diagram: 1. Housing; 2. Air inlet; 3. Air outlet; 4. Top cover; 5. Dust shaking mechanism; 6. Draft hood; 7. Support ring; 8. Dust collector bag; 9. Quick release mechanism; 10. Washer ring; 11. Sealing ring; 12. Support frame; 51. Fixing frame; 52. Motor; 53. Rotating shaft; 54. Impact rod; 55. Hollow sleeve; 56. Impact pin; 57. Sliding pin; 58. Spring 1; 91. Sliding rod; 92. Locking block; 93. Rubber ball; 94. Guide rod; 95. Spring 2. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0023] Please see Figures 1-3A blast furnace gas baghouse dust collector includes a housing 1. An outlet 3 is fixedly connected to the upper right side of the housing 1, and an inlet 2 is fixedly connected to the lower left side of the housing 1. A top cover 4 is bolted to the top of the housing 1. A support ring 7 is fixedly connected to the upper inner side of the housing 1. A dust collector bag 8 is slidably connected to the inner side of the support ring 7. A gasket 10 is fixedly connected to the dust collector bag 8, and the gasket 10 contacts the support ring 7. A sealing ring 11 is embedded at the bottom of the gasket 10, and the sealing ring 11 contacts the support ring 7. The sealing ring 11 increases the sealing between the gasket 10 and the support ring 7. A support frame 12 is welded to the bottom of the housing 1. A flow guide 6 is fixedly connected to the middle inner side of the housing 1, and the flow guide 6 is slidably connected to the dust collector bag 8. The flow guide 6 allows the gas to be introduced into the flow guide 6.

[0024] Please see Figures 3-4 The bottom of the top cover 4 is equipped with a dust-shaking mechanism 5. This mechanism periodically shakes the dust collector bag 8, preventing clogging. The dust-shaking mechanism 5 includes a fixed frame 51 fixedly connected to the bottom of the top cover 4. A motor 52 is fixedly mounted on the fixed frame 51. The output shaft of the motor 52 passes through the fixed frame 51 and is connected to it via a bearing. A rotating shaft 53 is fixedly connected to the end of the output shaft, and a striking rod 54 is fixedly connected to the end of the rotating shaft 53. A hollow sleeve 55 is fixedly connected to the bottom of 51. A striking pin 56 is slidably connected to the inner side of the hollow sleeve 55, and the striking pin 56 abuts against the dust collector bag 8. A spring 58 is provided on the inner side of the hollow sleeve 55. One end of the spring 58 is fixedly connected to the striking pin 56, and the other end of the spring 58 is fixedly connected to the inner surface of the hollow sleeve 55. A sliding pin 57 is fixedly connected to the pin body of the striking pin 56. The sliding pin 57 passes through the hollow sleeve 55 and is slidably connected to the hollow sleeve 55. The position of the sliding pin 57 corresponds to the striking rod 54.

[0025] Please see Figure 3 , Figure 5 A quick-release mechanism 9 is provided between the support ring 7 and the gasket ring 10. This mechanism facilitates the rapid disassembly and removal of the dust collector bag 8. The quick-release mechanism 9 includes a slide rod 91 slidably connected inside the support ring 7. A locking block 92 is fixedly connected to the upper section of the slide rod 91, engaging with the gasket ring 10. A guide rod 94 is fixedly connected inside the support ring 7, passing through and slidably connecting with the slide rod 91. A rubber bead 93 is fixedly connected to the locking block 92, engaging with the gasket ring 10. The rubber bead 93 increases the strength of the engagement between the locking block 92 and the gasket ring 10. A second spring 95 is sleeved on the outer side of the guide rod 94. One end of the second spring 95 is fixedly connected to the slide rod 91, and the other end is fixedly connected to the inner surface of the support ring 7. The elastic force of the second spring 95 acts on the slide rod 91.

[0026] The specific implementation process of this utility model is as follows: During use, the flue gas enters from the air inlet 2, and then is discharged from the air outlet 3 after being filtered by the dust collector bag 8. The filtered dust can be discharged from the bottom of the casing 1. During the dust removal process, the rotating shaft 53 is driven to rotate by the motor 52. The rotating shaft 53 has a striking rod 54 that periodically strikes the sliding pin 57. The sliding pin 57 will drive the striking pin 56 to extend and retract, thereby periodically striking the dust collector bag 8 and causing it to vibrate, thereby preventing the dust collector bag 8 from clogging. In addition, after removing the top cover 4, the sliding rod 91 is moved horizontally to separate the locking block 92 and the rubber ball 93 on the sliding rod 91 from the gasket ring 10 of the dust collector bag 8, so that the dust collector bag 8 can be taken out from the casing 1 for replacement.

[0027] 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.

Claims

1. A baghouse dust collector for blast furnace gas, comprising a housing (1), characterized in that: An air outlet (3) is fixedly connected to the upper right side of the housing (1), and an air inlet (2) is fixedly connected to the lower left side of the housing (1). A top cover (4) is bolted to the top of the housing (1). A dust shaking mechanism (5) is provided at the bottom of the top cover (4). A support ring (7) is fixedly connected to the upper inner side of the housing (1). A dust collector bag (8) is slidably connected to the inner side of the support ring (7). A pad ring (10) is fixedly connected to the dust collector bag (8), and the pad ring (10) contacts the support ring (7). A quick-release mechanism (9) is provided between the support ring (7) and the pad ring (10). A support frame (12) is welded to the bottom of the housing (1).

2. The blast furnace gas bag filter dust collector according to claim 1, characterized in that: A flow guide shroud (6) is fixedly connected to the middle of the inner side of the housing (1), and the flow guide shroud (6) is slidably connected to the dust collector bag (8).

3. The blast furnace gas bag filter dust collector according to claim 1, characterized in that: A sealing ring (11) is embedded in the bottom of the gasket (10), and the sealing ring (11) is in contact with the support ring (7).

4. The blast furnace gas bag filter dust collector according to claim 1, characterized in that: The dust-dispelling mechanism (5) includes a fixed frame (51) fixedly connected to the bottom of the top cover (4). A motor (52) is fixedly mounted on the fixed frame (51). The output shaft of the motor (52) passes through the fixed frame (51) and is connected to the fixed frame (51) via a bearing. A rotating shaft (53) is fixedly connected to the end of the output shaft. A striking rod (54) is fixedly connected to the end of the rotating shaft (53). A hollow sleeve (55) is fixedly connected to the bottom of the fixed frame (51). A sliding connection is made to the inner side of the hollow sleeve (55). A striking pin (56) is provided on the inner side of the hollow sleeve (55), and one end of the spring (58) is fixedly connected to the striking pin (56). The other end of the spring (58) is fixedly connected to the inner surface of the hollow sleeve (55). A sliding pin (57) is fixedly connected to the pin body of the striking pin (56). The sliding pin (57) passes through the hollow sleeve (55) and is slidably connected to the hollow sleeve (55). The position of the sliding pin (57) corresponds to the striking rod (54).

5. The blast furnace gas bag filter dust collector according to claim 1, characterized in that: The quick-release mechanism (9) includes a slide rod (91) slidably connected inside the support ring (7). A locking block (92) is fixedly connected to the upper section of the slide rod (91). The locking block (92) engages with the pad ring (10). A guide rod (94) is fixedly connected inside the support ring (7). The guide rod (94) passes through the slide rod (91) and is slidably connected to the slide rod (91).

6. A baghouse dust collector for blast furnace gas according to claim 5, characterized in that: A rubber bead (93) is fixedly connected to the card block (92), and the rubber bead (93) is engaged with the washer ring (10).

7. A baghouse dust collector for blast furnace gas according to claim 5, characterized in that: A second spring (95) is sleeved on the outer side of the guide rod (94). One end of the second spring (95) is fixedly connected to the slide rod (91), and the other end of the second spring (95) is fixedly connected to the inner surface of the support ring (7).

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