Cloth bag dust removal device of asphalt concrete mixing plant

Abstract

The utility model discloses a cloth bag dust removal device of an asphalt concrete mixing plant, which comprises a cloth bag dust remover and a plurality of cloth bag bodies, the side wall of the cloth bag dust remover is fixedly communicated with an air inlet pipe, the lower surface of the cloth bag dust remover is fixedly communicated with a dust hopper, the inner wall of the cloth bag dust remover is fixedly connected with a filter plate, and the filter plate is fixedly connected with a dust outlet pipe. The surface of the bag-type dust collector is fixedly communicated with an air outlet pipe, the surface of the air outlet pipe is fixedly connected with a conical top, the inner wall of the bag-type dust collector is provided with a drawing device, the drawing device comprises a sliding rail, and the sliding rail is fixedly connected with the bag-type dust collector. In the process that a bag-type dust collector is used in an asphalt concrete mixing plant, when a bag is replaced, the bag body can be rapidly pulled out in a drawing mode, the step of replacing the bag body is effectively simplified, a worker can conveniently replace the bag body, and the working efficiency of the worker is improved.

Description

Technical Field

[0001] This utility model relates to the field of baghouse dust collection technology, specifically a baghouse dust collection device for an asphalt concrete mixing plant. Background Technology

[0002] Baghouse dust collectors primarily filter dust-laden gas using filter bags. When dust-laden gas generated by an asphalt concrete mixing plant enters the dust collector, the gas passes through the filter bags under the suction of the fan. The filter bags are made of materials such as fibers, and dust particles are intercepted by the fibers of the filter bags as they pass through, thus achieving the purpose of dust removal.

[0003] The aforementioned and existing related technologies often have the following drawbacks: after prolonged use, the filter bags of baghouse dust collectors are prone to aging, but the process of replacing the filter bags is too cumbersome and not suitable for staff to replace, thus reducing the working efficiency of the baghouse dust collector.

[0004] Therefore, we propose a bag filter dust collector for asphalt concrete mixing plants. Utility Model Content

[0005] The purpose of this utility model is to provide a bag filter dust collector for an asphalt concrete mixing plant to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bag filter dust collector for an asphalt concrete mixing plant, comprising a bag filter dust collector and several bag bodies. An air inlet pipe is fixedly connected to the side wall of the bag filter dust collector, a dust hopper is fixedly connected to the lower surface of the bag filter dust collector, a filter plate is fixedly connected to the inner wall of the bag filter dust collector, an air outlet pipe is fixedly connected to the surface of the bag filter dust collector, a conical top is fixedly connected to the surface of the air outlet pipe, and a pull-out device is provided on the inner wall of the bag filter dust collector. The pull-out device includes a slide rail, which is fixedly connected to the bag filter dust collector. A first sliding groove is formed on the surface of the slide rail, and a sliding plate is slidably connected to the inner wall of the first sliding groove. The bag bodies are slidably connected to the sliding plate.

[0007] Preferably, the surface of the slide plate is rotatably connected with ball bearings, which abut against the inner wall of the first slide groove.

[0008] Preferably, a first spring is fixedly connected to the inner wall of the bag filter, a first slider is fixedly connected to one end of the first spring, the first slider is slidably connected to the first slide groove, a U-shaped plate is fixedly connected to the surface of the bag filter, a locking rod is slidably connected to the inner wall of the U-shaped plate, a first locking hole and a second locking hole are opened on the surface of the sliding plate, the locking rod passes through the slide rail and the bag filter, the locking rod is engaged with the second locking hole, and the size of the locking rod is adapted to the size of the second locking hole.

[0009] Preferably, a second spring is fitted onto the arc surface of the clamping rod, one end of the second spring is fixedly connected to the U-shaped plate, and the other end of the second spring is fixedly connected to the clamping rod.

[0010] Preferably, the arc surface of the air outlet duct is provided with a sealing device, the sealing device including a second sliding groove, the second sliding groove being formed on the arc surface of the air outlet duct, an electric push rod being fixedly connected to the inner wall of the second sliding groove, a second slider being fixedly connected to the output end of the electric push rod, the second slider being slidably connected to the second sliding groove, a sealing cover being fixedly connected to the surface of the second slider, and the sealing cover being slidably connected to the arc surface of the air outlet duct.

[0011] Preferably, a sealing ring is fixedly connected to the upper end of the sealing cover.

[0012] Preferably, a bottom ring is fixedly connected to the arc surface of the air outlet pipe, and a plurality of third springs are fixedly connected to the surface of the bottom ring. A retaining ring is fixedly connected to one end of each third spring, and the retaining ring is slidably connected to the arc surface of the air outlet pipe.

[0013] Preferably, a filter screen is fixedly connected to the inner wall of the air outlet duct.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, by setting a pull-out device, allows for quick and easy replacement of the filter bag body during the use of a bag filter dust collector in an asphalt concrete mixing plant. This effectively simplifies the replacement process, makes it easier for workers to replace the filter bag body, and improves their work efficiency.

[0016] 2. This utility model, by setting a sealing device, can seal the air outlet pipe after using the bag filter dust collector, thereby preventing dust or rainwater from falling into the air outlet pipe, reducing device malfunctions, and extending the service life of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the bag filter structure of this utility model;

[0019] Figure 3 This is a partial structural diagram of the air outlet duct of this utility model;

[0020] Figure 4 This is a partial disassembled structural diagram of the bag body of this utility model;

[0021] Figure 5 This utility model Figure 3 Enlarged view of point A in the middle.

[0022] In the diagram: 1. Inlet duct; 2. Baghouse dust collector; 3. Filter plate; 4. Dust hopper; 5. Outlet duct; 6. Pull-out device; 601. First spring; 602. First slider; 603. Slide rail; 604. U-shaped plate; 605. Locking rod; 606. Second spring; 607. First slide groove; 608. First locking hole; 609. Second locking hole; 610. Ball bearing; 611. Slide plate; 7. Sealing device; 71. Sealing cover; 72. Sealing ring; 73. Second slide groove; 74. Second slider; 75. Electric push rod; 76. Filter screen; 77. Bottom ring; 78. Retaining ring; 79. Third spring; 8. Conical top; 9. Bag body. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5This utility model provides a technical solution: a bag filter dust collector for an asphalt concrete mixing plant, comprising a bag filter 2 and several bag bodies 9. An air inlet pipe 1 is fixedly connected to the side wall of the bag filter 2, a dust hopper 4 is fixedly connected to the lower surface of the bag filter 2, a filter plate 3 is fixedly connected to the inner wall of the bag filter 2, an air outlet pipe 5 is fixedly connected to the surface of the bag filter 2, a conical top 8 is fixedly connected to the surface of the air outlet pipe 5, and a pull-out device 6 is provided on the inner wall of the bag filter 2. The pull-out device 6 includes a slide rail 603, which is fixedly connected to the bag filter 2. A first groove 607 is formed on the surface of the slide rail 603, and a sliding plate 611 is slidably connected to the inner wall of the first groove 607. The bag bodies 9 are slidably connected to the sliding plate 611, and ball bearings 610 are rotatably connected to the surface of the sliding plate 611. The first slide rail 603 and the bag filter 2 are fixedly connected to the inner wall of the first slide rail 607. The first spring 601 is fixedly connected to one end of the first spring 601. The first slider 602 is slidably connected to the first slide rail 607. The surface of the bag filter 2 is fixedly connected to the U-shaped plate 604. The inner wall of the U-shaped plate 604 is slidably connected to the locking rod 605. The surface of the slide plate 611 is provided with a first locking hole 608 and a second locking hole 609. The locking rod 605 passes through the slide rail 603 and the bag filter 2. The locking rod 605 is engaged with the second locking hole 609. The size of the locking rod 605 is adapted to the size of the second locking hole 609. The arc surface of the locking rod 605 is fitted with a second spring 606. One end of the second spring 606 is fixedly connected to the U-shaped plate 604. The other end of the second spring 606 is fixedly connected to the locking rod 605.

[0025] Please see Figure 3 In this embodiment, the arc surface of the air outlet pipe 5 is provided with a sealing device 7. The sealing device 7 includes a second sliding groove 73, which is opened on the arc surface of the air outlet pipe 5. An electric push rod 75 is fixedly connected to the inner wall of the second sliding groove 73. A second slider 74 is fixedly connected to the output end of the electric push rod 75. The second slider 74 is slidably connected to the second sliding groove 73. A sealing cover 71 is fixedly connected to the surface of the second slider 74. The sealing cover 71 is slidably connected to the arc surface of the air outlet pipe 5. A sealing ring 72 is fixedly connected to the upper end of the sealing cover 71. A bottom ring 77 is fixedly connected to the arc surface of the air outlet pipe 5. A plurality of third springs 79 are fixedly connected to the surface of the bottom ring 77. A retaining ring 78 is fixedly connected to one end of the third spring 79. The retaining ring 78 is slidably connected to the arc surface of the air outlet pipe 5.

[0026] Working principle: When it is necessary to purify the dusty air from an asphalt concrete mixing plant, the bag filter 2 is started, and high-speed airflow is introduced into the inlet pipe 1. The air undergoes preliminary filtration through the filter plate 3, and then passes through the bag body 9 for further filtration. The filtered air is then discharged outward through the outlet pipe 5. Prolonged operation can cause the bag body 9 to age easily, thus requiring replacement. At this time, the lever 605 is pulled out of the second locking hole 609. The first spring 601 extends, and the first slider 602 slides within the first slide groove 607 under the elastic force of the spring 601. Simultaneously, the first slider 602 pushes the slide plate 611 to move, facilitating the removal of the slide plate 611 by the operator to replace the bag body 9. During the movement of plate 611, one end of the locking rod 605 will abut against the surface of plate 611. When the locking rod 605 is aligned with the first locking hole 608, the locking rod 605 will be locked into the first locking hole 608 by the elastic force of the second spring 606, thereby preventing plate 611 from being ejected from the first slide groove 607 by the elastic force of the first spring 601. During this process, the ball bearings 610 installed on plate 611 can make the sliding of plate 611 in the first slide groove 607 smoother. By setting the pull-out device 6, when replacing the filter bag in the process of using bag dust collector 2 in asphalt concrete mixing plant, the filter bag body 9 can be quickly pulled out by the pull-out method, which effectively simplifies the steps of replacing filter bag body 9, makes it convenient for workers to replace filter bag body 9, and improves the work efficiency of workers.

[0027] After using the bag filter 2, when it is necessary to seal the outlet duct 5, the electric actuator 75 pushes the second slider 74 in the second slide groove 73 upward. As the second slider 74 moves, it also moves the sealing cover 71. When the surface of the sealing cover 71 contacts the surface of the conical top 8, the outlet duct 5 can be sealed. When the bag filter 2 needs to be used, the electric actuator 75 lowers the sealing cover 71. The retaining ring 78 under the sealing cover 71 is cushioned by the elastic force of the third spring 79 on the bottom ring 77, thus protecting the sealing device 7 and extending the service life of the device. During this process, the sealing ring 72 can increase the sealing performance of the sealing cover 71, and the filter screen 76 at the outlet of the outlet duct 5 can effectively prevent dust from entering the outlet duct 5. By setting the sealing device 7, the outlet duct 5 can be sealed after using the bag filter 2, thereby preventing dust or rainwater from falling into the outlet duct 5, reducing device failures, and extending the service life of the device.

Claims

1. A baghouse dust collector for an asphalt concrete mixing plant, comprising a baghouse dust collector (2) and several bag bodies (9), wherein an air inlet pipe (1) is fixedly connected to the side wall of the baghouse dust collector (2), a dust hopper (4) is fixedly connected to the lower surface of the baghouse dust collector (2), a filter plate (3) is fixedly connected to the inner wall of the baghouse dust collector (2), an air outlet pipe (5) is fixedly connected to the surface of the baghouse dust collector (2), and a conical top (8) is fixedly connected to the surface of the air outlet pipe (5), characterized in that: The inner wall of the bag filter (2) is provided with a pull-out device (6). The pull-out device (6) includes a slide rail (603). The slide rail (603) is fixedly connected to the bag filter (2). The surface of the slide rail (603) is provided with a first slide groove (607). The inner wall of the first slide groove (607) is slidably connected with a slide plate (611). The bag body (9) is slidably connected to the slide plate (611).

2. The bag filter dust collector for an asphalt concrete mixing plant according to claim 1, characterized in that: The surface of the slide plate (611) is rotatably connected to a ball bearing (610), which abuts against the inner wall of the first groove (607).

3. The bag filter dust collector for an asphalt concrete mixing plant according to claim 1, characterized in that: The inner wall of the bag filter (2) is fixedly connected to a first spring (601), and one end of the first spring (601) is fixedly connected to a first slider (602). The first slider (602) is slidably connected to a first slide groove (607). The surface of the bag filter (2) is fixedly connected to a U-shaped plate (604). The inner wall of the U-shaped plate (604) is slidably connected to a locking rod (605). The surface of the slide plate (611) is provided with a first locking hole (608) and a second locking hole (609). The locking rod (605) passes through the slide rail (603) and the bag filter (2). The locking rod (605) is engaged with the second locking hole (609). The size of the locking rod (605) is adapted to the size of the second locking hole (609).

4. The bag filter dust collector for an asphalt concrete mixing plant according to claim 3, characterized in that: The arc surface of the lever (605) is fitted with a second spring (606), one end of the second spring (606) is fixedly connected to the U-shaped plate (604), and the other end of the second spring (606) is fixedly connected to the lever (605).

5. A bag filter dust collector for an asphalt concrete mixing plant according to claim 1, characterized in that: The arc surface of the air outlet pipe (5) is provided with a sealing device (7). The sealing device (7) includes a second slide groove (73). The second slide groove (73) is opened on the arc surface of the air outlet pipe (5). An electric push rod (75) is fixedly connected to the inner wall of the second slide groove (73). A second slider (74) is fixedly connected to the output end of the electric push rod (75). The second slider (74) is slidably connected to the second slide groove (73). A sealing cover (71) is fixedly connected to the surface of the second slider (74). The sealing cover (71) is slidably connected to the arc surface of the air outlet pipe (5).

6. The bag filter dust collector for an asphalt concrete mixing plant according to claim 5, characterized in that: A sealing ring (72) is fixedly connected to the upper end of the sealing cover (71).

7. A bag filter dust collector for an asphalt concrete mixing plant according to claim 5, characterized in that: A bottom ring (77) is fixedly connected to the arc surface of the air outlet pipe (5). Several third springs (79) are fixedly connected to the surface of the bottom ring (77). A retaining ring (78) is fixedly connected to one end of the third spring (79). The retaining ring (78) is slidably connected to the arc surface of the air outlet pipe (5).

8. A bag filter dust collector for an asphalt concrete mixing plant according to claim 5, characterized in that: A filter screen (76) is fixedly connected to the inner wall of the air outlet pipe (5).

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