Pulse bag-type dust collector

Abstract

The utility model discloses a pulse bag-type dust collector, which belongs to the technical field of pulse bag-type dust collectors and comprises a pulse bag-type dust collector body, a cooling box for cooling high-temperature flue gas is arranged on one side of the pulse bag-type dust collector body, a gas pipe for conveying the high-temperature flue gas is arranged in an inner cavity of the cooling box, and a box cover is arranged on the top surface of the cooling box. The inner side wall of the cooling box and an inner cavity of the box cover are provided with dismounting assemblies used for dismounting the air pipe, one side face of the pulse bag-type dust collector body communicates with a connecting pipe, one end of the air pipe extends to an inner cavity of the connecting pipe, the position, located on one side of the connecting pipe, of the peripheral side of the air pipe is fixedly sleeved with a limiting block, and the peripheral side of the limiting block is sleeved with a sliding block; external threads and internal threads which are matched with each other are machined on the peripheral sides of the connecting pipe and the limiting block and the inner side wall of the sliding block correspondingly. According to the pulse bag-type dust collector, the problem that cold and heat exchange is affected by attached scale due to the fact that the air pipe is difficult to disassemble is solved, and the effect of cooling high-temperature flue gas is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulse bag dust collectors, and particularly relates to a pulse bag dust collector. Background Art

[0002] The pulse bag dust collector is a new type of high-efficiency pulse bag dust collector improved on the basis of the bag dust collector. The improved pulse bag dust collector retains the advantages of high purification efficiency, large gas treatment capacity, and stable performance. Now, most pulse bag dust collectors use a cooling device to cool high-temperature flue gas in order to prevent damage to the internal equipment of the dust collector. However, most of the conveying pipes through which the high-temperature flue gas passes are fixed in the cooling device, and when the conveying pipes are immersed in water for a long time, scale is likely to adhere to the peripheral side, resulting in the adhered scale affecting the heat exchange between water and high-temperature flue gas, and then it is difficult to remove the conveying pipes to deal with the adhered scale, thereby reducing the effect of cooling the high-temperature flue gas.

[0003] For example, there is a pulse bag dust collector with the Chinese publication number: CN221359066U, which: "comprises a pulse bag dust collection device and a cooling box. A cooling pipe is arranged on the lower side of the inner wall of the cooling box. The right end of the cooling pipe penetrates through the right side of the inner wall of the cooling box and extends to its right side. The upper end of the cooling pipe extends above the cooling box. Two limiting rings are fixedly connected to the inner wall of the cooling box."

[0004] It can be seen that the cited patent document has the problem of being difficult to clean the conveying pipe with adhered scale. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a pulse bag dust collector to solve the problems put forward in the background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A pulse bag dust collector includes a pulse bag dust collector body. A cooling box for cooling high-temperature flue gas is placed on one side of the pulse bag dust collector body. A gas pipe for conveying high-temperature flue gas is arranged in the inner cavity of the cooling box. A box cover is arranged on the top surface of the cooling box. Both ends of the gas pipe penetrate above the box cover. A disassembly and assembly component for disassembling the gas pipe is arranged on the inner side wall of the cooling box and the inner cavity of the box cover. A connecting pipe is communicated with one side surface of the pulse bag dust collector body. One end of the gas pipe extends into the inner cavity of the connecting pipe. A limiting block is fixedly sleeved on the peripheral side of the gas pipe and located on one side of the connecting pipe. A sliding block is sleeved on the peripheral side of the limiting block. External threads and internal threads that are mutually adapted are respectively processed on the peripheral sides of the connecting pipe and the limiting block and the inner side wall of the sliding block.

[0007] Preferably, sealing rings are installed on the circumferential side of the air pipe and on the top and bottom surfaces of the box cover, and the disassembly and assembly components include a baffle, a threaded shaft and a screw hole.

[0008] Preferably, two baffles are provided and symmetrically fixed on the inner wall of the cooling box, and a plurality of threaded shafts are provided and rotatably connected to the top surfaces of the two baffles at equal distances.

[0009] Preferably, the screw holes are also provided in a plurality and are equidistantly opened in the inner cavity of the box cover, and the position of each screw hole is respectively aligned with the position of each threaded shaft.

[0010] Preferably, a hook for hanging the air pipe is symmetrically mounted on the bottom surface of the box cover, and the portion of the air pipe in the inner cavity of the cooling box is bent.

[0011] Preferably, a water suction pump for conveying cooling water and a drainage pump for discharging cooling water are respectively installed on one side of the cooling box.

[0012] Preferably, the water suction pump and the drainage pump are both connected to the cooling box via a delivery pipe, and the water suction pump and the drainage pump are both connected to a condenser pipe for delivering cooling water.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The pulse bag dust collector, through the setting of the disassembly and assembly components, can allow the box cover together with the air pipe to be taken out from the cooling box, and the scale adhered to the side of the air pipe can be cleaned; the setting of the limit block, the slider, the internal thread and the external thread can disconnect the connection between the air pipe and the connecting pipe, and the air pipe can be moved to a cleaning device or other equipment for treatment. Compared with the existing device that fixes the air pipe in the inner cavity of the cooling box, the device can take the air pipe out of the cooling box and disconnect it from the pulse bag dust collector, so as to facilitate the treatment of the scale adhered to the side of the air pipe and improve the cooling effect of the high-temperature flue gas.

[0015] By setting the sealing ring, the sealing performance of the connection between the air pipe and the box cover can be improved, and the setting of the hook can ensure that the air pipe is always in a bent state when it is in the inner cavity of the cooling box. The setting of the water suction pump and the drainage pump can transport cooling water into the cooling box to cool the high-temperature flue gas, and can also discharge the cooling water with increased temperature and replace it with new cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is the structural schematic diagram of the present invention;

[0018] Figure 2 is the sectional view of the cooling box of the present invention;

[0019] Figure 3 is the sectional view of the air pipe and the connecting pipe of the present invention;

[0020] Figure 4 is of the present invention Figure 2 structural schematic diagram at position A.

[0021] Explanation of reference numerals:

[0022] In the figure: 1. Pulse bag filter body; 2. Cooling box; 3. Air pipe; 4. Box cover; 5. Connecting pipe; 6. Limit block; 7. Slide block; 8. External thread; 9. Internal thread; 10. Baffle; 11. Threaded shaft; 12. Threaded hole; 13. Sealing ring; 14. Hook; 15. Water suction pump; 16. Drainage pump; 17. Delivery pipe; 18. Condensing pipe. Specific embodiments

[0023] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some well-known technical features in the art are not described.

[0024] Unless otherwise defined, the up, down, left, right, front, back, inside and outside directions involved in this article are based on the up, down, left, right, front, back, inside and outside directions in the drawings shown in the present invention, and are hereby explained together.

[0025] The connection method can adopt existing methods such as bonding, welding, bolt connection, etc., depending on actual needs.

[0026] Such as Figures 1 to 4A pulse bag filter as shown includes a pulse bag filter body 1, and the pulse bag filter body 1 is an existing DMC pulse bag filter. Its principle is that the dust-containing gas enters the ash hopper from the air inlet duct. Coarse dust particles directly fall to the bottom of the ash hopper, and fine dust particles turn upwards with the airflow and enter the middle and lower boxes. The dust accumulates on the outer surface of the filter bag, and the filtered gas enters the upper box to the clean gas collecting pipe - exhaust duct and is discharged to the atmosphere through the exhaust fan.

[0027] A cooling box 2 for cooling high-temperature flue gas is placed on one side of the pulse bag filter body 1. A gas pipe 3 for conveying high-temperature flue gas is provided in the inner cavity of the cooling box 2. A box cover 4 is provided on the top surface of the cooling box 2. Both ends of the gas pipe 3 penetrate above the box cover 4. Sealing rings 13 are installed on the circumferential side of the gas pipe 3 and on the top and bottom surfaces of the box cover 4 to improve the sealing between the gas pipe 3 and the box cover 4, and the gas pipe 3 is fixedly connected to the box cover 4. A connecting pipe 5 is communicated with one side surface of the pulse bag filter body 1. One end of the gas pipe 3 extends into the inner cavity of the connecting pipe 5. Through the gas pipe 3, the external high-temperature flue gas can be conveyed into the cooling box 2 for cooling. The cooled high-temperature flue gas will pass through the gas pipe 3 and the connecting pipe 5 and enter the pulse bag filter body 1 for dust removal treatment. And the outer diameter of the gas pipe 3 is the same as the inner diameter of the connecting pipe 5, so the gas pipe 3 can enter the inner cavity of the connecting pipe 5, and the connecting pipe 5 is made of a rigid material.

[0028] A limiting block 6 is fixedly sleeved on the circumferential side of the gas pipe 3 and on one side of the connecting pipe 5, and the outer diameter of the limiting block 6 is the same as the outer diameter of the connecting pipe 5. A sliding block 7 is sleeved on the circumferential side of the limiting block 6. External threads 8 and internal threads 9 that are mutually adapted are respectively machined on the circumferential sides of the connecting pipe 5 and the limiting block 6 and on the inner side wall of the sliding block 7. When the gas pipe 3 is placed in the inner cavity of the connecting pipe 5, the limiting block 6 will abut against the circumferential side of the connecting pipe 5. At this time, rotate the sliding block 7 so that the sliding block 7 can move along the circumferential side of the limiting block 6 through the setting of the external thread 8 and the internal thread 9, and make half of the sliding block 7 move to the circumferential side of the connecting pipe 5, and cooperate with the self-locking of the thread to fix the sliding block 7 on the circumferential sides of the connecting pipe 5 and the limiting block 6, and the connection between the connecting pipe 5 and the gas pipe 3 can be fixed. On the contrary, when the sliding block 7 moves to the circumferential side of the limiting block 6, the connection between the connecting pipe 5 and the gas pipe 3 can be disconnected, so that the gas pipe 3 can be taken out for cleaning.

[0029] A handle is installed on the top surface of the lid 4. A disassembly and assembly component for disassembling the air pipe 3 is provided on the inner side wall of the cooling box 2 and the inner cavity of the lid 4. The disassembly and assembly component includes a baffle 10, a threaded shaft 11, and a threaded hole 12. There are two baffles 10, which are symmetrically fixed on the inner side wall of the cooling box 2. There are several threaded shafts 11, which are respectively rotatably connected to the top surfaces of the two baffles 10 at equal intervals. There are also several threaded holes 12, which are opened in the inner cavity of the lid 4 at equal intervals. The position of each threaded hole 12 is aligned with the position of each threaded shaft 11 respectively. Personnel pull the lid 4 upward through the handle, and the lid 4 can move around the threaded shaft 11 through the threaded hole 12. Since the threaded shaft 11 is rotatably connected to the top surface of the baffle 10, when the threaded hole 12 moves around the threaded shaft 11, it will drive the threaded shaft 11 to rotate. When the threaded hole 12 disengages from the threaded shaft 11, the lid 4 can be detached from above the cooling box 2, thereby driving the air pipe 3 to be taken out of the cooling box 2. At the same time, the connection between the connecting pipe 5 and the air pipe 3 is disconnected through the slider 7, the external thread 8, and the internal thread 9, and then the air pipe 3 can be moved to the cleaning device or other equipment to process the adhered water scale, avoiding the situation that it is difficult to disassemble the air pipe 3 and affecting the treatment of the water scale, which may cause the water scale to affect the heat exchange between the cooling water and the high-temperature flue gas, and improving the effect of cooling the high-temperature flue gas. Conversely, when the air pipe 3 needs to be fixed in the inner cavity of the cooling box 2, align the position of the threaded hole 12 with the position of the threaded shaft 11 and press the lid 4 downward, so that the lid 4 can enter the inner cavity of the cooling box 2 and abut against the baffle 10. Also, with the self-locking of the thread, the lid 4 is fixed on the top surface of the baffle 10, and the air pipe 3 will be in the inner cavity of the cooling box 2.

[0030] Hook 14 for hanging the air pipe 3 is symmetrically installed on the bottom surface of the lid 4. The part of the air pipe 3 in the inner cavity of the cooling box 2 is bent, and the bent air pipe 3 can extend the time of the high-temperature flue gas in the cooling box 2.

[0031] A water suction pump 15 for conveying cooling water and a drainage pump 16 for discharging cooling water are respectively installed on one side of the cooling box 2. Delivery pipes 17 are connected between the water suction pump 15 and the drainage pump 16 and the cooling box 2. The water suction pump 15 and the drainage pump 16 are both connected to a condensation pipe 18 for conveying cooling water. The water suction pump 15 can put the externally connected cooling water into the cooling box 2 through the condensation pipe 18 and the delivery pipe 17, and wrap the air pipe 3 to cool the high-temperature flue gas. The drainage pump 16 can discharge the cooling water with rising temperature out of the cooling box 2 through the delivery pipe 17 and the condensation pipe 18, thereby replacing the cooling water.

[0032] Working principle:

[0033] For this pulse bag filter, the high-temperature flue gas that needs to be cooled is put into the air pipe 3 and enters the cooling box 2. At this time, the cooling water is put into the cooling box 2 through the water suction pump 15, so that the cooling water can wrap the air pipe 3, enabling heat exchange between the cooling water and the high-temperature flue gas, cooling the temperature of the high-temperature flue gas. The cooled high-temperature flue gas will then pass through the air pipe 3 and the connecting pipe 5 and enter the pulse bag filter body 1 for dust removal operation. However, when scale adheres to the periphery of the air pipe 3 and affects the cooling, the operator rotates the slider 7, allowing the slider 7 to rotate around the connecting pipe 5 and the limiting block 6. With the setting of the external thread 8 and the internal thread 9, the slider 7 can move to the periphery of the limiting block 6, thus disconnecting the connection between the air pipe 3 and the connecting pipe 5. At this time, the operator pulls up the box cover 4 through the handle, causing the box cover 4 to drive the threaded shaft 11 to rotate through the screw hole 12, so that the box cover 4 can gradually move upward around the threaded shaft 11. When the screw hole 12 disengages from the threaded shaft 11, the box cover 4 can be detached from above the cooling box 2, and then the air pipe 3 is driven to be taken out of the cooling box 2, enabling the scale adhering to the periphery of the air pipe 3 to be cleaned, avoiding the difficulty of disassembling the air pipe 3 and affecting the treatment of the scale, and preventing the situation where the scale affects the heat exchange between the cooling water and the high-temperature flue gas, thereby improving the effect of cooling the high-temperature flue gas.

[0034] It should be noted that in this article, relational terms such as "one" and "two" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pulse bag filter, comprising a pulse bag filter body (1), characterized in that: On one side of the pulse bag filter body (1), a cooling box (2) for cooling high-temperature flue gas is placed. Inside the cavity of the cooling box (2), there is a gas pipe (3) for transporting high-temperature flue gas. On the top surface of the cooling box (2), there is a box cover (4). Both ends of the gas pipe (3) penetrate above the box cover (4). An assembly and disassembly component for disassembling the gas pipe (3) is provided on the inner side wall of the cooling box (2) and the inner cavity of the box cover (4). On one side surface of the pulse bag filter body (1), a connecting pipe (5) is communicated. One end of the gas pipe (3) extends into the inner cavity of the connecting pipe (5). A limiting block (6) is fixedly sleeved on the circumference of the gas pipe (3) and on one side of the connecting pipe (5). A sliding block (7) is sleeved on the circumference of the limiting block (6). External threads (8) and internal threads (9) that are mutually adapted are respectively machined on the circumferences of the connecting pipe (5) and the limiting block (6) and on the inner side wall of the sliding block (7).

2. The pulse bag filter according to claim 1, characterized in that: Sealing rings (13) are installed on the top and bottom surfaces of the box cover (4) on the circumference of the gas pipe (3). The assembly and disassembly component includes a baffle (10), a threaded shaft (11), and a threaded hole (12).

3. The pulse bag filter according to claim 2, wherein: There are two baffles (10), which are symmetrically fixed on the inner side wall of the cooling box (2). There are several threaded shafts (11), which are respectively rotatably connected at equal intervals on the top surfaces of the two baffles (10).

4. The pulse jet fabric filter according to claim 3, wherein: There are also several threaded holes (12), which are opened at equal intervals in the inner cavity of the box cover (4). The position of each threaded hole (12) is aligned with the position of each threaded shaft (11).

5. A pulse bag filter according to claim 1, characterized in that: Hooks (14) for hanging the gas pipe (3) are symmetrically installed on the bottom surface of the box cover (4). The part of the gas pipe (3) inside the cooling box (2) is bent.

6. The pulse bag filter according to claim 1, wherein: A water suction pump (15) for transporting cooling water and a drainage pump (16) for discharging cooling water are respectively installed on one side surface of the cooling box (2).

7. A pulse bag filter according to claim 6, characterized in that: Delivery pipes (17) are communicated between the water suction pump (15) and the drainage pump (16) and the cooling box (2). The water suction pump (15) and the drainage pump (16) are both communicated with a condensation pipe (18) for transporting cooling water.

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