Cloth bag dust removal device

Abstract

This utility model relates to a baghouse dust collector, which includes: a baghouse dust collector installed on the ground, with filter bags installed inside, and a first inlet pipe and an exhaust pipe on the side. Dust-laden gas is introduced into the first inlet pipe; a calcium powder conveying mechanism includes a container, a screw conveyor, a powder feeding pipe, and a first fan. Calcium powder in the container falls into the first end of the screw conveyor, and the screw in the screw conveyor quantitatively conveys the calcium powder. The calcium powder falls from the second end of the screw conveyor into the powder feeding pipe. The first fan is started, and the first fan blows air to transport the calcium powder into the first inlet pipe, and it enters the baghouse dust collector along with the dust-laden gas. The calcium powder adheres to the surface of the filter bags and simultaneously adsorbs dust in the gas, improving the dust filtration effect. At the same time, because the calcium powder has poor adhesion, it is easily detached from the filter bags by vibration or pulse air blowing, thus improving the service life of the filter bags.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, and in particular to a bag filter dust collector. Background Technology

[0002] A baghouse dust collector typically consists of a housing, inside which filter bags and blowpipes are installed. The blowpipe nozzles are aimed at the top of the filter bags, and the lower end of the housing is an inverted conical discharge hopper. Dust-laden gas is introduced into the baghouse dust collector. Clean gas passes through the filter bags, while dust is trapped by them. Under the influence of gravity and the reverse pulse blowing from the blowpipes, the dust on the filter bags is blown off and into the discharge hopper.

[0003] However, relying solely on filter bags results in low dust filtration efficiency, and dust tends to adhere to the filter bags over time, which can eventually reduce their filtration effectiveness.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model discloses a bag filter dust collector to solve the problem of decreased filter efficiency of bag filters after long-term use.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A baghouse dust collector includes: a bag filter installed on the ground, with filter bags inside, and a first inlet pipe and an exhaust pipe on the side, wherein dust-laden gas is introduced into the first inlet pipe; a calcium powder conveying mechanism including: a container filled with calcium powder; a screw conveyor with its upper first end connected to the lower end of the container; a powder conveying pipe with its upper end connected to the lower second end of the screw conveyor, and the second end connected to the first inlet pipe; and a first fan with its outlet connected to the first end of the powder conveying pipe.

[0008] A further technical solution is that the powder feeding pipe includes: a first pipe, which is horizontally arranged, with its upper end connected to the lower side of the second end of the screw conveyor, and its first end connected to the first fan; a second pipe, which is vertically arranged, with its first end connected to the second end of the first pipe; and a third pipe, which is an arc-shaped pipe that protrudes upward, with its first end connected to the second end of the second pipe, and its second end connected to the first air inlet pipe.

[0009] A further technical solution is that a third pneumatic valve is provided at the second end of the third pipe.

[0010] A further technical solution is that the bag filter dust collector further includes: a second fan, the inlet end of which is connected to the second end of the exhaust pipe; and a chimney, which is set on the ground and connected to the outlet end of the second fan by a pipe on its side.

[0011] A further technical solution is that a first pneumatic valve is provided at the first end of the first intake pipe, and a second pneumatic valve is provided at the second end of the exhaust pipe.

[0012] A further technical solution is that the bag filter is also equipped with a vibration mechanism, and the lower end of the bag filter has an ash discharge hopper, which is inverted conical in shape, and an electric valve and a slide valve are installed at the lower end of the ash discharge hopper.

[0013] A further technical solution is that the bag filter is provided with an explosion vent and an inspection port on its side.

[0014] A further technical solution is that the bag filter dust collector further includes: a desulfurization and defluorination tower, which is located at the front end of the bag filter dust collector and whose second end is connected to the first end of the first inlet pipe; and a second inlet pipe, whose second end is connected to the first end of the desulfurization and defluorination tower.

[0015] The beneficial effects of this utility model embodiment are as follows:

[0016] (I) The bag filter dust collector of this utility model includes a bag filter dust collector and a calcium powder conveying mechanism. The calcium powder conveying mechanism includes a container, a screw conveyor, a powder conveying pipe, and a first fan. Calcium powder in the container falls into the first end of the screw conveyor. The screw in the screw conveyor rotates and quantitatively conveys the calcium powder. The calcium powder falls from the second end of the screw conveyor into the powder conveying pipe. The first fan is started, and the first fan blows air to convey the calcium powder to the first air inlet pipe. The calcium powder enters the bag filter dust collector along with the dust-laden gas. The calcium powder adheres to the surface of the filter bag and adsorbs dust in the gas, improving the dust filtration effect. At the same time, because the calcium powder has poor adhesion, it is easily detached from the filter bag by vibration or pulse air blowing, thus improving the service life of the filter bag.

[0017] (ii) Further, the powder feeding pipeline includes a first pipe, a second pipe, and a third pipe. The first pipe is horizontally arranged, with its upper end connected to the lower side of the second end of the screw conveyor, and its first end connected to the first fan. The second pipe is vertically arranged, with its first end connected to the second end of the first pipe. The third pipe is an arc-shaped pipe that protrudes upwards, with its first end connected to the second end of the second pipe, and its second end connected to the first air inlet pipe. A third pneumatic valve is installed at the second end of the third pipe to further prevent dust from being blown into the powder feeding pipeline. Attached Figure Description

[0018] Figure 1 This is a top view of the bag filter dust collector of this utility model.

[0019] Figure 2This is a top view schematic diagram of the calcium powder conveying mechanism in the bag filter dust collector of this utility model.

[0020] Figure 3 This is a rear view schematic diagram of the calcium powder conveying mechanism in the bag filter dust collector of this utility model.

[0021] Figure 4 This is a front view structural diagram of the bag filter dust collector of this utility model.

[0022] Figure 5 This is a side view of the bag filter dust collector of this utility model.

[0023] In the picture:

[0024] 1. Baghouse dust collector; 11. First inlet pipe; 111. First pneumatic valve; 12. Exhaust pipe; 121. Second pneumatic valve; 13. Explosion vent; 14. Inspection port; 15. Ash hopper; 151. Electric valve; 152. Slide valve; 2. Container; 3. Screw conveyor; 4. Powder conveying pipeline; 41. First pipe; 42. Second pipe; 43. Third pipe; 44. Third pneumatic valve; 5. First fan; 6. Desulfurization and defluorination tower; 7. Second inlet pipe; 8. Second fan; 9. Chimney. Detailed Implementation

[0025] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0027] Example:

[0028] This embodiment discloses a bag filter dust collector.

[0029] Figure 1 This is a top view schematic diagram of the bag filter dust collector of this utility model. Figure 1 As shown, the bag filter dust collector includes a bag filter dust collector 1 and a calcium powder conveying mechanism.

[0030] The calcium powder conveying mechanism includes a container 2, a screw conveyor 3, a powder conveying pipe 4, and a first blower 5.

[0031] The baghouse dust collector 1 is installed on the ground, with filter bags (not shown in the figure) installed inside. A first inlet pipe 11 and an exhaust pipe 12 are provided on the side, and dust-laden gas is introduced into the first inlet pipe 11. In this embodiment, the baghouse dust collector 1 is a commercially available mechanical vibration baghouse dust collector 1. Of course, the baghouse dust collector 1 can also be a commercially available pulse jet baghouse dust collector 1. The baghouse dust collector 1 is also equipped with a rapping mechanism (not shown in the figure), which is a commercially available hammer. The lower end of the baghouse dust collector 1 has a dust discharge hopper 15, which is inverted conical in shape. An electric valve 151 and a slide valve 152 are provided at the lower end of the dust discharge hopper 15 to control the opening and closing of the lower opening of the dust discharge hopper 15.

[0032] Figure 2 This is a top view schematic diagram of the calcium powder conveying mechanism in the bag filter dust collector of this utility model. Figure 2 As shown, container 2 contains calcium powder. The upper side of the first end of screw conveyor 3 is connected to the lower end of container 2, and the calcium powder is quantitatively conveyed by the rotation of the screw in screw conveyor 3. The upper end of powder feeding pipe 4 is connected to the lower side of the second end of screw conveyor 3, and the second end is connected to the first air inlet pipe 11. The air outlet of the first fan 5 is connected to the first end of powder feeding pipe 4. Figure 3 This is a rear view schematic diagram of the calcium powder conveying mechanism in the bag filter dust collector of this utility model. Figure 2 and Figure 3 As shown, exemplarily, the first end is the end closer to the conveying direction, and the second end is the end farther from the conveying direction. The powder feeding pipe 4 includes a first pipe 41, a second pipe 42, and a third pipe 43. The first pipe 41 is horizontally arranged, with its upper end connected to the lower side of the second end of the screw conveyor 3, and its first end connected to the first fan 5. The second pipe 42 is vertically arranged, with its first end connected to the second end of the first pipe 41. The third pipe 43 is an arc-shaped pipe, protruding upwards, with its first end connected to the second end of the second pipe 42, and its second end connected to the first air inlet pipe 11, preventing dust from falling into the powder feeding pipe 4 under gravity. Preferably, a third pneumatic valve 44 is provided at the second end of the third pipe 43 to further prevent dust from being blown into the powder feeding pipe 4.

[0033] Figure 4 This is a front view structural diagram of the bag filter dust collector of this utility model. Figure 1 and Figure 4As shown, the bag filter further includes a second fan 8 and a chimney 9. The inlet of the second fan 8 is connected to the second end of the exhaust pipe 12. The second fan 8 draws in air, and the negative pressure drives the dust-laden gas through the inlet pipe into the bag filter 1. The chimney 9 is installed on the ground, and its side is connected to the outlet of the second fan 8 through a pipe.

[0034] like Figure 1 and Figure 4 As shown, a first pneumatic valve 111 is provided at the first end of the first intake pipe 11, and a second pneumatic valve 121 is provided at the second end of the exhaust pipe 12, so as to control the opening and closing of the first intake pipe 11 and the exhaust pipe 12 by air pressure.

[0035] Figure 5 This is a side view of the bag filter dust collector of this utility model. Figure 5 As shown, the bag filter 1 is further provided with an explosion vent 13 and an inspection port 14 on its side. The explosion vent 13 improves the safety of the bag filter 1, and the inspection port 14 facilitates the daily maintenance of the bag filter 1.

[0036] like Figure 1 and Figure 4 As shown, the bag filter further includes a desulfurization and defluorination tower 6 and a second inlet pipe 7. The desulfurization and defluorination tower 6 is located at the front end of the bag filter 1, and its second end is connected to the first end of the first inlet pipe 11. It can reduce sulfur dioxide and fluorides in the gas, which is existing technology. The second end of the second inlet pipe 7 is connected to the first end of the desulfurization and defluorination tower 6.

[0037] In this embodiment, the calcium powder in container 2 falls into the first end of screw conveyor 3. The screw in screw conveyor 3 rotates and quantitatively transports the calcium powder. The calcium powder falls from the second end of screw conveyor 3 into powder feeding pipe 4. The first fan 5 is started, and the first fan 5 blows air to transport the calcium powder into the first air inlet pipe 11. It enters the bag filter 1 along with the dust-laden gas. The calcium powder adheres to the surface of the filter bag and adsorbs the dust in the gas, improving the dust filtration effect. At the same time, because the calcium powder has poor adhesion, it is easily detached from the filter bag by vibration or pulse air blowing, which improves the service life of the filter bag.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A baghouse dust removal device, characterized by, The bag filter dust collector includes: A baghouse dust collector, installed on the ground, has filter bags installed inside, and a first inlet pipe and an exhaust pipe on the side. Dust-laden gas is introduced into the first inlet pipe. A calcium powder conveying mechanism includes: The container contains calcium powder. A screw conveyor, with its upper first end connected to the lower end of the container; The powder feeding pipe is connected at its upper end to the lower side of the second end of the screw conveyor, and at its second end to the first air inlet pipe. The first fan has its outlet end connected to the first end of the powder delivery pipe.

2. The baghouse according to claim 1, wherein, The powder feeding pipe includes: The first pipe is horizontally arranged, with its upper end connected to the lower side of the second end of the screw conveyor and its first end connected to the first fan. The second tube is vertically installed, with its first end connected to the second end of the first tube; The third tube is an arc-shaped tube that protrudes upwards. Its first end is connected to the second end of the second tube, and its second end is connected to the first air intake tube.

3. The baghouse of claim 2, wherein: A third pneumatic valve is installed at the second end of the third pipe.

4. The baghouse of claim 1, wherein: The bag filter dust collector also includes: The second fan has its air inlet end connected to the second end of the exhaust pipe; The chimney is located on the ground, and its side is connected to the exhaust end of the second fan via a pipe.

5. The bag filter dust collector according to claim 4, characterized in that: A first pneumatic valve is provided at the first end of the first intake pipe, and a second pneumatic valve is provided at the second end of the exhaust pipe.

6. The baghouse of claim 1, wherein: The bag filter is also equipped with a vibration mechanism, and the lower end of the bag filter has a dust discharge hopper, which is inverted conical in shape. An electric valve and a slide valve are installed at the lower end of the dust discharge hopper.

7. The baghouse of claim 1, wherein: The bag filter is equipped with an explosion vent and an inspection port on its side.

8. The baghouse of claim 1, wherein: The bag filter dust collector also includes: A desulfurization and defluorination tower is installed at the front end of the bag filter, and the second end is connected to the first end of the first air inlet pipe. The second air inlet pipe is connected at its second end to the first end of the desulfurization and defluorination tower.

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