Chimney dust removal device for boiler

Abstract

The utility model belongs to the technical field of boiler dust removal, and particularly relates to a chimney dust removal device for a boiler, which comprises a shell, a top cover is fixedly mounted at the top of the shell through bolts, a mounting groove is formed in the top of the top cover, a mounting plate is mounted in the mounting groove in an embedded manner, and insertion holes are formed in the surface of the mounting plate at equal intervals. Bag cages are installed in the inserting holes in an inserted mode, filter bags are fixedly arranged on the surfaces of the bag cages in a sleeving mode, and the top ends of the bag cages are fixedly connected with the installation plate through screws. By arranging the brush assembly, the connecting rod and the driving assembly, the brush assembly can move up and down on the surface of the filter bag in a reciprocating manner, so that the surface of the filter bag can be brushed and cleaned, dust accumulated on the surface of the filter bag is cleaned, a bag cage cannot be damaged, the manufacturing cost is low, and the practicability is high. The brush assembly is connected with the connecting rod through the bolt, so that the brush assembly can be conveniently replaced after being damaged, and the overall using effect is good.

Description

Technical Field

[0001] This utility model relates to the field of boiler dust removal technology, specifically a dust removal device for boiler chimneys. Background Technology

[0002] When a boiler burns, it produces dust-laden flue gas, which is discharged from the chimney. To prevent environmental pollution, connecting pipes are typically used to connect the chimney to a baghouse dust collector for filtration. Currently, the filter bags in baghouse dust collectors are prone to adhering to particulate matter from the flue gas, leading to filter pore blockage and affecting filtration efficiency. Therefore, current baghouse dust collectors are generally equipped with rapping or pulse jet cleaning systems to clean the filter bags. However, rapping systems impact the bag cages during rapping, which can easily damage them. Pulse jet cleaning systems are costly to manufacture, requiring compressed air equipment such as air compressors, air tanks, and pulse valves, which are expensive to purchase and install. Furthermore, the pulse jet system is complex and has many vulnerable parts, making them unsuitable solutions. Therefore, we propose a flue gas dust collection device for boilers to address these issues. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the prior art, the present invention provides a dust removal device for boiler chimneys, which solves the problems mentioned in the background art.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A dust removal device for boiler chimneys includes a housing. A top cover is bolted to the top of the housing. A mounting groove is formed on the top of the top cover, and a mounting plate is embedded in the groove. Insertion holes are equidistantly formed on the surface of the mounting plate, and bag cages are inserted into each hole. Filter bags are fitted onto the surface of the bag cages, and the top ends of the bag cages are fixedly connected to the mounting plate with screws. A cover is bolted to the top of the top cover and pressed against the top of the mounting plate. An exhaust pipe is fixedly connected to the top of the cover. A brush assembly for cleaning the surface of the filter bags is disposed inside the housing. Connecting rods are bolted to the four corners of the brush assembly, and the top ends of the four connecting rods slide through the top of the top cover. A drive assembly for driving the four connecting rods to reciprocate up and down is disposed on the housing. A dust discharge pipe is fixedly connected to the bottom of the housing, and a valve is installed at the bottom of the dust discharge pipe. An air inlet pipe is fixedly connected to one side wall of the housing.

[0008] Furthermore, two support legs are symmetrically fixed to each of the two side walls of the housing, and universal self-locking wheels are installed at the bottom of each of the four support legs.

[0009] Furthermore, flanges are fixed to the top of the exhaust pipe and one end of the intake pipe.

[0010] Furthermore, the drive assembly includes a motor fixed to the surface of the housing, a reciprocating lead screw fixed to the output shaft of the motor, a fixed block rotatably connected to the top end of the reciprocating lead screw via a bearing, a side wall of the fixed block being fixedly connected to a side wall of the housing, a connecting plate being fitted onto the surface of the reciprocating lead screw, and two mounting rods being symmetrically fixedly mounted on the top of the connecting plate via screws, with the tops of the four connecting rods respectively fixedly connected to the bottoms of the corresponding two mounting rods.

[0011] Furthermore, a stabilizing block is fixed to the surface of the housing, and the bottom end of the reciprocating lead screw is rotatably connected to the stabilizing block via a bearing.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a dust removal device for boiler chimneys, which has the following beneficial effects:

[0014] This invention, by setting up a brush assembly, a connecting rod, and a drive assembly, enables the brush assembly to move back and forth on the surface of the filter bag, thereby brushing and cleaning the surface of the filter bag and sweeping away the dust accumulated on the surface of the filter bag without damaging the bag cage. It also has a low manufacturing cost. The brush assembly and the connecting rod are connected by bolts, so when the brush assembly is damaged, it can be replaced relatively easily. The overall performance is good. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall rear structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the shell structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the brush assembly structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the top cover structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the mounting plate structure of this utility model;

[0021] Figure 7This is a schematic diagram of the bag cage structure of this utility model.

[0022] In the diagram: 1. Housing; 2. Top cover; 3. Mounting slot; 4. Mounting plate; 5. Insertion hole; 6. Bag cage; 7. Filter bag; 8. Cover; 9. Exhaust pipe; 10. Brush assembly; 11. Connecting rod; 12. Drive assembly; 1201. Motor; 1202. Reciprocating screw; 1203. Fixing block; 1204. Connecting plate; 1205. Mounting rod; 1206. Stabilizing block; 13. Dust exhaust pipe; 14. Valve; 15. Air inlet pipe; 16. Support leg; 17. Universal self-locking wheel. 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] Example

[0025] like Figure 1-7As shown in the figure, an embodiment of the present invention discloses a dust removal device for a boiler chimney, comprising a housing 1, a top cover 2 fixedly mounted on the top of the housing 1 by bolts, two first connecting blocks symmetrically fixed on each of the two side walls of the housing 1, and a first bolt fixed to the top of each of the four first connecting blocks, two second connecting blocks symmetrically fixed on each of the two side walls of the top cover 2, each of the four second connecting blocks having a first mounting hole adapted to the first bolt, and a first nut threadedly connected to the surface of the first bolt, the top of the top cover 2 having a mounting groove 3, into which a mounting plate 4 is embedded, and the surface of the mounting plate 4 having equidistant insertion holes 5, into which a bag cage 6 is inserted, and a filter bag 7 is fixedly fitted onto the surface of the bag cage 6, the top of the bag cage 6 being fixedly connected to the mounting plate 4 by screws, and a cover 8 fixedly mounted on the top of the top cover 2 by bolts, the cover 8 being pressed onto the top of the mounting plate 4, and four second bolts symmetrically fixed to the top of the top cover 2. The cover 8 has four third connecting blocks symmetrically fixed on its surface. Each of the four third connecting blocks has a second mounting hole adapted to the second bolt. The second bolt is threaded with a second nut. The top of the cover 8 is fixedly connected to an exhaust pipe 9. The inside of the housing 1 is provided with a brush assembly 10 for cleaning the surface of the filter bag 7. Each of the four corners of the brush assembly 10 is fixedly installed with a connecting rod 11 by bolts. The bottom of each of the four connecting rods 11 is fixed with a third bolt. Each of the four corners of the brush assembly 10 has a third mounting hole adapted to the third bolt. The surface of each third bolt is threaded with a third nut. The top of each of the four connecting rods 11 slides through the top of the top cover 2. The housing 1 is provided with a drive assembly 12 for driving the four connecting rods 11 to move up and down reciprocally. The bottom of the housing 1 is fixedly connected to a dust exhaust pipe 13. A valve 14 is installed at the bottom of the dust exhaust pipe 13. One side wall of the housing 1 is fixedly connected to an air inlet pipe 15.

[0026] In use, the boiler's chimney is connected to the inlet pipe 15 via a pipe. The dust-laden flue gas generated during boiler combustion enters the housing 1. Under the action of the filter bag 7, the dust in the flue gas can be filtered. The filtered gas will pass through the bag cage 6 and be discharged from the exhaust pipe 9. It should be noted that the top of the exhaust pipe 9 is connected to a connecting pipe for connecting to the subsequent flue gas treatment device. When a lot of dust adheres to the surface of the filter bag 7, clogging the filter holes and affecting the filtration effect, the drive assembly 12 can be used to drive the four connecting rods 11 to move up and down in the vertical direction. The four connecting rods 11 can drive the brush assembly 10 to move up and down in the vertical direction. It should be noted that the bristles of the brush assembly 10 are in close contact with the surface of the filter bag 7, so the up and down movement of the brush assembly 10 can effectively sweep off the dust adhering to the surface of the filter bag 7, thereby improving the filtration effect.

[0027] like Figure 1 and Figure 2As shown, in this embodiment, two support legs 16 are symmetrically fixed on both sides of the housing 1, and universal self-locking wheels 17 are installed at the bottom of the four support legs 16 to facilitate the movement of the device; flanges are fixed at the top of the exhaust pipe 9 and one end of the intake pipe 15 to facilitate connection with the connecting pipe.

[0028] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the drive assembly 12 includes a motor 1201 fixed to the surface of the housing 1. A reciprocating lead screw 1202 is fixed to the output shaft of the motor 1201. A fixing block 1203 is rotatably connected to the top of the reciprocating lead screw 1202 via a bearing. One side wall of the fixing block 1203 is fixedly connected to one side wall of the housing 1. A connecting plate 1204 is fitted onto the surface of the reciprocating lead screw 1202. Two mounting rods 1205 are symmetrically fixed to the top of the connecting plate 1204 via screws. The tops of the four connecting rods 11 are respectively fixedly connected to the bottoms of the corresponding two mounting rods 1205. The surface of the housing 1 is fixed with... The bottom end of the stabilizing block 1206 and the reciprocating screw 1202 are rotatably connected to the stabilizing block 1206 via bearings. This is to make the reciprocating screw 1202 more stable when it rotates. When it is necessary to drive the four connecting rods 11 to move up and down in the vertical direction, the motor 1201 can be started. The motor 1201 can drive the reciprocating screw 1202 to rotate. The reciprocating screw 1202 can drive the connecting plate 1204 to move up and down. The connecting plate 1204 can drive the two mounting rods 1205 to move up and down in the vertical direction. The two mounting rods 1205 can drive the four connecting rods 11 to move up and down.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dust removal device for boiler chimneys, comprising a housing (1), characterized in that: A top cover (2) is bolted to the top of the housing (1). A mounting groove (3) is provided on the top of the top cover (2). A mounting plate (4) is embedded in the mounting groove (3). Insertion holes (5) are equidistantly provided on the surface of the mounting plate (4). A bag cage (6) is inserted into each insertion hole (5). A filter bag (7) is fitted and fixed to the surface of the bag cage (6). The top of the bag cage (6) is fixedly connected to the mounting plate (4) with screws. A cover (8) is bolted to the top of the top cover (2). The cover (8) is pressed against the top of the mounting plate (4). The top of the cover (8) is fixed... The housing (1) is connected to an exhaust pipe (9). Inside the housing (1) is a brush assembly (10) for cleaning the surface of the filter bag (7). Each of the four corners of the brush assembly (10) is fixed with a connecting rod (11) by bolts. The top ends of the four connecting rods (11) slide through the top of the top cover (2). The housing (1) is provided with a drive assembly (12) for driving the four connecting rods (11) to move up and down. The bottom of the housing (1) is fixedly connected to a dust exhaust pipe (13). A valve (14) is installed at the bottom of the dust exhaust pipe (13). An air inlet pipe (15) is fixedly connected to one side wall of the housing (1).

2. The dust removal device for boiler chimneys according to claim 1, characterized in that: The housing (1) has two symmetrically fixed support legs (16) on both sides, and the bottom of each of the four support legs (16) is equipped with a universal self-locking wheel (17).

3. A dust removal device for boiler chimneys according to claim 1, characterized in that: The exhaust pipe (9) has a flange fixed to its top end and the intake pipe (15) has a flange fixed to one end.

4. A dust removal device for boiler chimneys according to claim 1, characterized in that: The drive assembly (12) includes a motor (1201) fixed to the surface of the housing (1). The output shaft of the motor (1201) is fixed with a reciprocating lead screw (1202). The top end of the reciprocating lead screw (1202) is rotatably connected to a fixing block (1203) via a bearing. One side wall of the fixing block (1203) is fixedly connected to one side wall of the housing (1). A connecting plate (1204) is fitted onto the surface of the reciprocating lead screw (1202). Two mounting rods (1205) are symmetrically fixed to the top of the connecting plate (1204) by screws. The tops of the four connecting rods (11) are respectively fixedly connected to the bottoms of the corresponding two mounting rods (1205).

5. A dust removal device for boiler chimneys according to claim 4, characterized in that: A stabilizing block (1206) is fixed on the surface of the housing (1), and the bottom end of the reciprocating screw (1202) is rotatably connected to the stabilizing block (1206) through a bearing.

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